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Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Pull CIFS updates from Steve French.
* 'for-next' of git://git.samba.org/sfrench/cifs-2.6: (29 commits)
cifs: fix oops while traversing open file list (try #4)
cifs: Fix comment as d_alloc_root() is replaced by d_make_root()
CIFS: Introduce SMB2 mounts as vers=2.1
CIFS: Introduce SMB2 Kconfig option
CIFS: Move add/set_credits and get_credits_field to ops structure
CIFS: Move protocol specific demultiplex thread calls to ops struct
CIFS: Move protocol specific part from cifs_readv_receive to ops struct
CIFS: Move header_size/max_header_size to ops structure
CIFS: Move protocol specific part from SendReceive2 to ops struct
cifs: Include backup intent search flags during searches {try #2)
CIFS: Separate protocol specific part from setlk
CIFS: Separate protocol specific part from getlk
CIFS: Separate protocol specific lock type handling
CIFS: Convert lock type to 32 bit variable
CIFS: Move locks to cifsFileInfo structure
cifs: convert send_nt_cancel into a version specific op
cifs: add a smb_version_operations/values structures and a smb_version enum
cifs: remove the vers= and version= synonyms for ver=
cifs: add warning about change in default cache semantics in 3.7
cifs: display cache= option in /proc/mounts
...
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While traversing the linked list of open file handles, if the identfied
file handle is invalid, a reopen is attempted and if it fails, we
resume traversing where we stopped and cifs can oops while accessing
invalid next element, for list might have changed.
So mark the invalid file handle and attempt reopen if no
valid file handle is found in rest of the list.
If reopen fails, move the invalid file handle to the end of the list
and start traversing the list again from the begining.
Repeat this four times before giving up and returning an error if
file reopen keeps failing.
Cc: <stable@vger.kernel.org>
Signed-off-by: Shirish Pargaonkar <shirishpargaonkar@gmail.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
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For more details see <file: Documentation/filesystems/porting>.
Signed-off-by: Sedat Dilek <sedat.dilek@gmail.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
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As with Linux nfs client, which uses "nfsvers=" or "vers=" to
indicate which protocol to use for mount, specifying
"vers=2.1"
will force an SMB2 mount. When vers is not specified CIFS is used
"vers=1"
We can eventually autonegotiate down from SMB2 to CIFS
when SMB2 is stable enough to make it the default, but this
is for the future. At that time we could also implement a
"maxprotocol" mount option as smbclient and Samba have today,
but that would be premature until SMB2 is stable.
Intially the SMB2 Kconfig option will depend on "BROKEN"
until the merge is complete, and then be "EXPERIMENTAL"
When it is no longer experimental we can consider changing
the default protocol to attempt first.
Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Acked-by: Shirish Pargaonkar <shirishpargaonkar@gmail.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
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SMB2 is the followon to the CIFS (and SMB) protocols
and the default for Windows since Windows Vista, and also
now implemented by various non-Windows servers. SMB2
is more secure, has various performance advantages, including
larger i/o sizes, flow control, better caching model and more.
SMB2 also resolves some scalability limits in the CIFS
protocol and adds many new features while being much
simpler (only a few dozen commands instead of hundreds)
and since the protocol is clearer it is also more consistently
implemented across servers and thus easier to optimize.
After much discussion with Jeff Layton, Jeremy Allison
and others at Connectathon, we decided to move the SMB2
code from a distinct .ko and fstype into distinct
C files that optionally build in cifs.ko. As a result
the Kconfig gets simpler.
To avoid destabilizing CIFS, the SMB2 code is going
to be moved into its own experimental CONFIG_CIFS_SMB2 ifdef
as it is merged and rereviewed. The changes to stable
CIFS (builds with the SMB2 ifdef off) are expected to be
fairly small.
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru>
Signed-off-by: Steve French <sfrench@us.ibm.com>
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Acked-by: Shirish Pargaonkar <shirishpargaonkar@gmail.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru>
Signed-off-by: Steve French <sfrench@us.ibm.com>
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Acked-by: Shirish Pargaonkar <shirishpargaonkar@gmail.com>
Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru>
Signed-off-by: Steve French <sfrench@us.ibm.com>
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Acked-by: Shirish Pargaonkar <shirishpargaonkar@gmail.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru>
Signed-off-by: Steve French <sfrench@us.ibm.com>
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Acked-by: Shirish Pargaonkar <shirishpargaonkar@gmail.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru>
Signed-off-by: Steve French <sfrench@us.ibm.com>
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Acked-by: Shirish Pargaonkar <shirishpargaonkar@gmail.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru>
Signed-off-by: Steve French <sfrench@us.ibm.com>
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As observed and suggested by Tushar Gosavi...
---------
readdir calls these function to send TRANS2_FIND_FIRST and
TRANS2_FIND_NEXT command to the server. The current cifs module is
not specifying CIFS_SEARCH_BACKUP_SEARCH flag while sending these
command when backupuid/backupgid is specified. This can be resolved
by specifying CIFS_SEARCH_BACKUP_SEARCH flag.
---------
Cc: <stable@kernel.org>
Reported-and-Tested-by: Tushar Gosavi <tugosavi@in.ibm.com>
Signed-off-by: Shirish Pargaonkar <shirishpargaonkar@gmail.com>
Acked-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
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Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru>
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Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru>
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Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru>
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to handle SMB2 lock type field further.
Acked-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru>
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CIFS brlock cache can be used by several file handles if we have a
write-caching lease on the file that is supported by SMB2 protocol.
Prepate the code to handle this situation correctly by sorting brlocks
by a fid to easily push them in portions when lease break comes.
Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru>
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For SMB2, this should be a no-op. Obviously if we wanted to do something
for the SMB2 case, we could also define an operation here for it.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru>
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We need a way to dispatch different operations for different versions.
Behold the smb_version_operations/values structures. For now, those
structures just hold the version enum value and nothing uses them.
Eventually, we'll expand them to cover other operations/values as we
change the callers to dispatch from here.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru>
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We want these to mean something different entirely, and the mount.cifs
helper only ever passed in ver= automatically. Also, don't allow
ver=cifs anymore since that was never passed in by the mount helper.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
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Add a warning that will be displayed when there is no cache= option
specified. We want to ensure that users are aware of the change in
defaults coming in 3.7.
Reviewed-by: Pavel Shilovsky <piastry@etersoft.ru>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
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...and deprecate the display of strictcache, forcedirectio, and fsc
as separate options.
Reviewed-by: Pavel Shilovsky <piastry@etersoft.ru>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
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Leave them in for 2 releases and remove for 3.7.
Reviewed-by: Pavel Shilovsky <piastry@etersoft.ru>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
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Currently, we have several mount options that control cifs' cache
behavior, but those options aren't considered to be mutually exclusive.
The result is poorly-defined when someone specifies more than one of
these options at mount time.
Fix this by adding a new cache= mount option that will supercede
"strictcache", and "forcedirectio". That will help make it clear that
these options are mutually exclusive. Also, change the legacy options to
be mutually exclusive too, to ensure that users don't get surprises.
Reviewed-by: Pavel Shilovsky <piastry@etersoft.ru>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
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This was used by an ancient version of umount.cifs and in nowhere else
that I'm aware of. Let's add a warning now and dump it for 3.7.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
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We've now warned about this for two releases. Remove it for 3.5.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
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Convert cifs_iovec_read to use async I/O. This also raises the limit on
the rsize for uncached reads. We first allocate a set of pages to hold
the replies, then issue the reads in parallel and then collect the
replies and copy the results into the iovec.
A possible future optimization would be to kmap and inline the iovec
buffers and read the data directly from the socket into that. That would
require some rather complex conversion of the iovec into a kvec however.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
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We'll need this same bit of code for the uncached case.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
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This isn't strictly necessary for the async readpages code, but the
uncached version will need to be able to collect the replies after
issuing the calls. Add a kref to cifs_readdata and use change the
code to take and put references appropriately.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
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Cached and uncached reads will need to do different things here to
handle the difference when the pages are in pagecache and not. Abstract
out the function that marshals the page list into a kvec array.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
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We'll need different completion routines for an uncached read. Allow
the caller to set the one he needs at allocation time. Also, move
most of these functions to file.c so we can make more of them static.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6
Pull MFD changes from Samuel Ortiz:
"Besides the usual cleanups, this one brings:
* Support for 5 new chipsets: Intel's ICH LPC and SCH Centerton,
ST-E's STAX211, Samsung's MAX77693 and TI's LM3533.
* Device tree support for the twl6040, tps65910, da9502 and ab8500
drivers.
* Fairly big tps56910, ab8500 and db8500 updates.
* i2c support for mc13xxx.
* Our regular update for the wm8xxx driver from Mark."
Fix up various conflicts with other trees, largely due to ab5500 removal
etc.
* tag 'mfd-3.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6: (106 commits)
mfd: Fix build break of max77693 by adding REGMAP_I2C option
mfd: Fix twl6040 build failure
mfd: Fix max77693 build failure
mfd: ab8500-core should depend on MFD_DB8500_PRCMU
gpio: tps65910: dt: process gpio specific device node info
mfd: Remove the parsing of dt info for tps65910 gpio
mfd: Save device node parsed platform data for tps65910 sub devices
mfd: Add r_select to lm3533 platform data
gpio: Add Intel Centerton support to gpio-sch
mfd: Emulate active low IRQs as well as active high IRQs for wm831x
mfd: Mark two lm3533 zone registers as volatile
mfd: Fix return type of lm533 attribute is_visible
mfd: Enable Device Tree support in the ab8500-pwm driver
mfd: Enable Device Tree support in the ab8500-sysctrl driver
mfd: Add support for Device Tree to twl6040
mfd: Register the twl6040 child for the ASoC codec unconditionally
mfd: Allocate twl6040 IRQ numbers dynamically
mfd: twl6040 code cleanup in interrupt initialization part
mfd: Enable ab8500-gpadc driver for Device Tree
mfd: Prevent unassigned pointer from being used in ab8500-gpadc driver
...
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This patch add REGMAP_I2C config option to fix build break
of max77693 mfd driver because max77693 use regmap interface
for i2c communication.
drivers/mfd/max77693.c:103: error: variable 'max77693_regmap_config' has initializer but incomplete type
drivers/mfd/max77693.c:104: error: unknown field 'reg_bits' specified in initializer
drivers/mfd/max77693.c:104: warning: excess elements in struct initializer
drivers/mfd/max77693.c:104: warning: (near initialization for 'max77693_regmap_config')
drivers/mfd/max77693.c:105: error: unknown field 'val_bits' specified in initializer
drivers/mfd/max77693.c:105: warning: excess elements in struct initializer
drivers/mfd/max77693.c:105: warning: (near initialization for 'max77693_regmap_config')
drivers/mfd/max77693.c:106: error: unknown field 'max_register' specified in initializer
drivers/mfd/max77693.c:106: warning: excess elements in struct initializer
drivers/mfd/max77693.c:106: warning: (near initialization for 'max77693_regmap_config')
drivers/mfd/max77693.c: In function 'max77693_i2c_probe':
drivers/mfd/max77693.c:122: error: implicit declaration of function 'devm_regmap_init_i2c'
drivers/mfd/max77693.c:122: warning: assignment makes pointer from integer without a cast
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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Without it we get:
CC drivers/mfd/twl6040-core.o
drivers/mfd/twl6040-core.c: In function ‘twl6040_has_vibra’:
drivers/mfd/twl6040-core.c:55:2: error: implicit declaration of function
‘of_find_node_by_name’ [-Werror=implicit-function-declaration]
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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Without it we get:
drivers/mfd/max77693.c: In function ‘max77693_i2c_probe’:
drivers/mfd/max77693.c:157:2: error: implicit declaration of function
‘max77693_irq_init’ [-Werror=implicit-function-declaration]
drivers/mfd/max77693.c: In function ‘max77693_resume’:
drivers/mfd/max77693.c:215:2: error: implicit declaration of function
‘max77693_irq_resume’ [-Werror=implicit-function-declaration]
drivers/mfd/max77693-irq.c: In function ‘max77693_irq_lock’:
drivers/mfd/max77693-irq.c:104:2: error: ‘struct max77693_dev’ has no member
named ‘irqlock’
drivers/mfd/max77693-irq.c: In function ‘max77693_irq_sync_unlock’:
drivers/mfd/max77693-irq.c:119:11: error: ‘struct max77693_dev’ has no member
named ‘irq_masks_cache’
drivers/mfd/max77693-irq.c:119:42: error: ‘struct max77693_dev’ has no member
named ‘irq_masks_cur’
drivers/mfd/max77693-irq.c:122:13: error: ‘struct max77693_dev’ has no member
named ‘irq_masks_cur’
drivers/mfd/max77693-irq.c:125:24: error: ‘struct max77693_dev’ has no member
named ‘irqlock’
drivers/mfd/max77693-irq.c: In function ‘max77693_irq_mask’:
drivers/mfd/max77693-irq.c:141:11: error: ‘struct max77693_dev’ has no member
named ‘irq_masks_cur’
drivers/mfd/max77693-irq.c:143:11: error: ‘struct max77693_dev’ has no member
named ‘irq_masks_cur’
drivers/mfd/max77693-irq.c: In function ‘max77693_irq_unmask’:
drivers/mfd/max77693-irq.c:153:11: error: ‘struct max77693_dev’ has no member
named ‘irq_masks_cur’
drivers/mfd/max77693-irq.c:155:11: error: ‘struct max77693_dev’ has no member
named ‘irq_masks_cur’
drivers/mfd/max77693-irq.c: In function ‘max77693_irq_thread’:
drivers/mfd/max77693-irq.c:209:26: error: ‘struct max77693_dev’ has no member
named ‘irq_masks_cur’
drivers/mfd/max77693-irq.c:211:27: error: ‘struct max77693_dev’ has no member
named ‘irq_masks_cur’
drivers/mfd/max77693-irq.c:217:39: error: ‘struct max77693_dev’ has no member
named ‘irq_domain’
drivers/mfd/max77693-irq.c: In function ‘max77693_irq_init’:
drivers/mfd/max77693-irq.c:260:2: error: ‘struct max77693_dev’ has no member
named ‘irqlock’
drivers/mfd/max77693-irq.c:268:12: error: ‘struct max77693_dev’ has no member
named ‘irq_masks_cur’
drivers/mfd/max77693-irq.c:269:12: error: ‘struct max77693_dev’ has no member
named ‘irq_masks_cache’
drivers/mfd/max77693-irq.c:271:12: error: ‘struct max77693_dev’ has no member
named ‘irq_masks_cur’
drivers/mfd/max77693-irq.c:272:12: error: ‘struct max77693_dev’ has no member
named ‘irq_masks_cache’
drivers/mfd/max77693-irq.c:292:10: error: ‘struct max77693_dev’ has no member
named ‘irq_domain’
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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A recent move to eliminate excess historical baggage from ab8500 core
code resulting in errors when building with x86_64 allmodconfig:
In file included from drivers/mfd/ab8500-core.c:21:0:
include/linux/mfd/dbx500-prcmu.h:614:19: error: redefinition of 'prcmu_abb_read'
include/linux/mfd/db8500-prcmu.h:673:19: note: previous definition of 'prcmu_abb_read' was here
include/linux/mfd/dbx500-prcmu.h:619:19: error: redefinition of 'prcmu_abb_write'
include/linux/mfd/db8500-prcmu.h:678:19: note: previous definition of 'prcmu_abb_write' was here
include/linux/mfd/dbx500-prcmu.h:630:19: error: redefinition of 'prcmu_config_clkout'
include/linux/mfd/db8500-prcmu.h:643:19: note: previous definition of 'prcmu_config_clkout' was here
include/linux/mfd/dbx500-prcmu.h:692:20: error: redefinition of 'prcmu_ac_wake_req'
include/linux/mfd/db8500-prcmu.h:683:20: note: previous definition of 'prcmu_ac_wake_req' was here
include/linux/mfd/dbx500-prcmu.h:694:20: error: redefinition of 'prcmu_ac_sleep_req'
include/linux/mfd/db8500-prcmu.h:685:20: note: previous definition of 'prcmu_ac_sleep_req' was here
Problem:
When CONFIG_AB8500_CORE is set, building ab8500-core.c and
!(CONFIG_UX500_SOC_DB8500 | CONFIG_MFD_DB8500_PRCMU), both db8500-prcmu.h
and dbx500-prcmu.h take it upon themselves to _both_ create 'return 0'
inline functions for the following:
prcmu_abb_read()
prcmu_abb_write()
prcmu_config_clkout()
prcmu_ac_wake_req()
prcmu_ac_sleep_req()
Solution:
Depend on MFD_DB8500_PRCMU, which in turn depends on UX500_SOC_DB8500.
Reported-By: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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Parse the gpio specific device node information locally.
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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Remove the parsing of device node information for sub devices
from core file.
The sub devices will parse the information as per the sub-devices
specific information.
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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Save the allocated memory to store the parsed device node information
to the global device structure so that sub devices can directly use this
pointer.
In this way, the sub devices does not require to re-allocate the
memory for storing the sub-devices specific device node information.
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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Add resistor-select parameter to the platform data.
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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This patch adds the Intel Centerton processor device ID for GPIO.
The device ID is defined in include/linux/pci_ids.h
Signed-off-by: Seth Heasley <seth.heasley@intel.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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As with the existing emulation this should not be used in production
systems but is useful for test purposes.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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Mark the two currently unused zone registers as volatile in regmap for
completeness.
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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Since commit 587a1f1659 ("switch ->is_visible() to returning umode_t")
the return type of is_visible is umode_t rather than mode_t.
This silences a compiler warning on some architectures where these types
are not compatible.
Reported-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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This patch ensures probing of the ab8500-pwm driver during a DT
enabled boot, so long as the associated nodes are present in the
Device Tree binary.
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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This patch ensures probing of the ab8500-sysctrl driver during a DT
enabled boot, so long as the associated nodes are present in the
Device Tree binary.
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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Device tree based probing support for the core twl6040 driver. Child
devices will be created as MFD devices:
- ASoC codec is always created
- Vibra child is only created if the vibra section present in the DT blob.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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The main function of the twl6040 is to provide audio on OMAP4+ platforms.
Since the ASoC codec driver can work without the pdata we can register the
child to load the codec driver whenever the twl6040 MFD driver is loaded.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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Use irq_alloc_descs() to get the IRQ number range dynamically instead of
the hardwired use if pdata->irq_base.
The twl6040 only provides interrupts for it's internal components which
means that it is not working as an IRQ expander type of device.
The client drivers will receive their interrupt numbers as resource which
is configured based on the received IRQ range we got from irq_alloc_descs()
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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No functional change, just to make the code a bit more uniform and
remove wrapped lines.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
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