| Commit message (Collapse) | Author | Age | Files | Lines |
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* 'for-linus/2639/i2c-1' of git://git.fluff.org/bjdooks/linux:
i2c-mpc: Add support for 64bit system
i2c: add driver for Freescale i.MX28
i2c: tegra: Add i2c support
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'for-2639/i2c/i2c-imx' into for-linus/2639/i2c-1
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Currently only supporting the PIOQUEUE-mode, because DMA-support for
this platform is not yet in mainline. When it becomes available and
support has been added to this driver, it will also be suitable for
i.MX23 and STMP3xxx.
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Cc: Ben Dooks <ben-linux@fluff.org>
Cc: Shawn Guo <shawn.guo@freescale.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
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Currently i2c-mpc supports 32bit system only, this modification makes it
supported on both 32-bit and 64-bit systems. The P5020 is the first
64-bit PPC system with the i2c-mpc controller.
Based in patch from Xulei <B33228@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
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Adds I2C bus driver for nVidia Tegra SoCs. Tegra includes 4 I2C
controllers, one of which is inside the Dynamic Voltage Controller
and has a slightly different register map.
Signed-off-by: Colin Cross <ccross@android.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
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* git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog:
watchdog: booke_wdt: clean up status messages
watchdog: cleanup spaces before tabs
watchdog: convert to DEFINE_PCI_DEVICE_TABLE
watchdog: Xen watchdog driver
watchdog: Intel SCU Watchdog Timer Driver for Moorestown and Medfield platforms.
watchdog: jz4740_wdt - fix magic character checking
watchdog: add JZ4740 watchdog driver
watchdog: it87_wdt: Add support for IT8721F watchdog
watchdog: hpwdt: build hpwdt as module by default with NMI_DECODING enabled
watchdog: hpwdt: Fix a couple of typos
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Improve the status messages that are displayed during some operations of the
PowerPC watchdog timer driver. When the watchdog is enabled, the timeout is
displayed as a number of seconds, instead of an obscure "period". The "period"
is the position of a bit in a 64-bit timer register. The higher the value,
the quicker the watchdog timeout occurs. Some people chose a high "period"
value for the timer and get confused as to why the board resets within a
few seconds.
Messages displayed during open and close are now debug messages, so that they
don't clutter the console by default. Finally, printk() is replaced with the
pr_xxx() equivalent.
Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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cleanup spaces before tabs in drivers/watchdog/
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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Convert static struct pci_device_id *[] to static DEFINE_PCI_DEVICE_TABLE tables.
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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While the hypervisor change adding SCHEDOP_watchdog support included a
daemon to make use of the new functionality, having a kernel driver
for /dev/watchdog so that user space code doesn't need to distinguish
non-Xen and Xen seems to be preferable.
Signed-off-by: Jan Beulich <jbeulich@novell.com>
Cc: Jeremy Fitzhardinge <jeremy@goop.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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This submission includes:
- Fix to intel_scu_write() to start watchdog timer the on the
first write, and refresh on subsequent writes.
This enables Open, write, write, ... usage model.
- Moves boot parameter checks from intel_scu_open() to
intel_scu_watchdog_init(), so driver init will fail if these
parameters are out of bounds.
- Adds check for whether process waiting in wait_event_interruptible()
received a signal while it was waiting.
- Other small error handling changes.
Removed the read() method for now as that wass a non-standard behaviour.
Signed-off-by: Donald Johnson <donald.k.johnson@intel.com>
Signed-off-by: Shuduo Sang <shuduo.sang@intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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When writing to /dev/watchdog all characters should be checked
for the magic character 'V'.
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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Adds support for the hardware watchdog found in Ingenic's jz4740
System-on-Chip.
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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This patch adds support for a watchdog in IT8721F Super IO
chip to it87_wdt driver.
This new chips differ from the older IT87xxxF chips
in the following ways:
* WDT_GAMEPORT is not in IT8721F.
* WDT_PWROK is not in IT8721F.
Signed-off-by: Haruo Tomita <haruo.tomita@toshiba.co.jp>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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Builds the hpwdt driver as a module by default.
If the hardware is present, the module will be loaded.
Also, if hpwdt is loaded, it will decode NMIs by default.
This has been made possible by he patches to hpwdt made by Dann Frazier
as well as related patches submitted by Don Zickus.
hpwdt only loads on hp ProLiant x86 32-bit and 64-bit platforms.
Signed-off-by: Tony Camuso <tcamuso@redhat.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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Fix some typos.
Signed-off-by: Naga Chumbalkar <nagananda.chumbalkar@hp.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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git://git.kernel.org/pub/scm/linux/kernel/git/groeck/staging
* 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/staging: (44 commits)
hwmon: (lineage-pem): Fix in1 voltage alarm sysfs attributes
hwmon/f71882fg: Add support for f71808e
hwmon/f71882fg: Add support for f71869f and f71869e
hwmon/f71882fg: Add support for f71889ed
hwmon/f71882fg: Break out test for auto pwm's controlled by digital readings
hwmon/f71882fg: Separate temp beep sysfs attr from the other temp sysfs attr
hwmon/f71882fg: Remove bogus temp2_type for certain models
hwmon/f71882fg: Make number of temps configurable
hwmon/f71882fg: Make creation of in sysfs attributes more generic
hwmon/f71882fg: Only allow negative auto point temps if fan_neg_temp is enabled
hwmon/f71882fg: Fix temp1 sensor type reporting
hwmon: (w83627ehf) Display correct temperature sensor labels for systems with NCT6775F
hwmon: (w83627ehf) Add fan debounce support for NCT6775F and NCT6776F
hwmon: (w83627ehf) Update Kconfig for W83677HG-B, NCT6775F and NCT6776F
hwmon: (w83627ehf) Store rpm instead of raw fan speed data
hwmon: (w83627ehf) Use 16 bit fan count registers if supported
hwmon: (w83627ehf) Add support for Nuvoton NCT6775F and NCT6776F
hwmon: (w83627ehf) Permit enabling SmartFan IV mode if configured at startup
hwmon: (w83627ehf) Convert register arrays to 16 bit, and convert access to pointers
hwmon: (w83627ehf) Remove references to datasheets which no longer exist
...
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The alarm bit assumed to be a low voltage alarm bit is not set for low voltage
alarms, and the alarm bit assumed to be a high voltage alarm turns out to be a
general alarm bit which is set for both low and high voltage alarms.
Remove the in1_min_alarm sysfs attribute and rename in1_max_alarm to in1_alarm
to reflect the situation.
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Acked-by: Jean Delvare <khali@linux-fr.org>
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Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: Jonathan Michalon <johndescs@gmail.com>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
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Note that these 2 are register compatible and report the same superio id,
but they are 2 distinct chips / models!
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: Thomas Faber <thfabba@gmx.de>
Tested-by: Alexey Sychev <owl@umail.ru>
Tested-by: Dieter Bloms <dieter@bloms.de>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
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Note that this patch also makes 2 changes to the code paths for the f71889fg
to keep the code unified between the 2 (for simplicities sake). Both of these
are harmless for then f71889fg:
1) The first change is to always set the FAN_PROG_SEL bit to 0. This influences
accesses to some banked fan / pwm registers. On the f71889fg no registers
which we use are banked. On the f71889ed however some more fan registers
have been banked including one which we use, by making the FAN_PROG_SEL bit
0, address 0x96 will point to the right register.
2) The second change is to see a FANx_TEMP_SEL value of 0 as pointing to
a PECI / AMDSI value, and thus disable our pwm related sysfs attr.
This is correct for the f71889ed and on the f71889fg 0 is a reserved
value, so we should never see it and if we do, disabling the pwm related
sysfs attr is a sane thing to do.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: Thomas Greve <tg42@gmx.net>
Tested-by: Sander Eikelenboom <linux@eikelenboom.it>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
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Putting this check in its own switch case rather then in the switch case
for adding pwm auto point sysfs attr is cleaner. This is a preparation patch
for adding support for more different models.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
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This is a preparation patch for adding support for more different models.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
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Remove the temp2_type sysfs files for f8000 / f71858fg models,
this got in accidentally and is wrong as these models don't have a
Temperature Sensor Type Register at all.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
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Make the temp sysattr array for the standard models a 2d array, which allows
to use it for models with less temperatures too. This is a preparation
patch for adding support for more different models.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
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This is a preparation patch for adding support for more different models,
some of which have a sparse list of used voltage pins.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
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Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
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The code for determining a sensort type for temp1 was based on me misreading
the datasheet, the tested registers do not determine what kind of sensor
is actually reported as temp1. Instead the enable / disable certain additional
digital sensor readouts throug PECI / AMDSI, etc. Independent of these settings
temp1 is still reading an external BJT or thermistor as configured by the
Temperature Sensor Type Register (0x6b).
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
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with NCT6775F
Systems with NCT6775F reported temperature sensor labels for systems with
NCT6776F. This patch fixes the problem.
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
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NCT6776F and NCT6775F support debouncing the fan RPM signal. This can
help improve the stability of th RPM signal for some fans (Arctic cooling
fans for example).
This patch adds a module parameter fan_debounce, which when set to 1 enables
debounce for all fans that the chip supports.
Signed-off-by: Ian Dobson <i.dobson@planet-ian.com>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
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Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Acked-by: Ian Dobson <i.dobson@planet-ian.com>
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Since the fan speed value can be above 0xff, we can no longer use
that value to determine if the fan speed reading is valid. This
makes it difficult to manipulate the stored fan speed register value.
If we store rpm instead of the fan speed register value, we do not
need to correct it if the fan divisor value is changed, and the above
mentioned problem no longer exists.
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Acked-by: Ian Dobson <i.dobson@planet-ian.com>
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Some of the chips supported by this driver have 13 bit or 16 bit fan count
registers. This patch improves support for those registers, specifically for
NCT6775F. With the changes in this patch, fan speed is reported correctly even
if the fan divider is set to a low value, which results in a fan speed reading
above 0xff.
With this patch, the width of fan count registers is no longer used to determine
if the chip has fan divider register(s) or not. A dedicated flag is used instead
to determine if this is the case.
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Acked-by: Ian Dobson <i.dobson@planet-ian.com>
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This patch adds support for NCT6775F and NCT6776F to the w83627ehf driver.
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Tested-by: Ian Dobson <i.dobson@planet-ian.com> (NCT6776F)
Tested-by: Zachary Marzec <zmarzec@gmail.com> (ASUS P8P67 PRO/NCT6776F)
Acked-by: Ian Dobson <i.dobson@planet-ian.com>
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If SmartFan IV mode was configured at startup, it should be possible
to re-enable it later on.
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Acked-by: Ian Dobson <i.dobson@planet-ian.com>
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pointers
For newer chips, several registers are banked and thus need to be 16 bit.
Also, register addresses change.
To prepare for those chips, convert affected register arrays to 16 bit,
and change access to those registers to array pointers in struct w83627ehf_data.
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Acked-by: Ian Dobson <i.dobson@planet-ian.com>
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Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Acked-by: Ian Dobson <i.dobson@planet-ian.com>
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Add support for 4th temperature sensor on W83677HG-B.
Display temperature labels on W83677HG-B to report temperature sources.
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Acked-by: Ian Dobson <i.dobson@planet-ian.com>
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Assume that each register is banked, and set the bank for each access.
Cache the bank number so it only needs to be set if it changes.
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Acked-by: Ian Dobson <i.dobson@planet-ian.com>
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This cleanup fixes most of the checkpatch warnings and errors in the w83627ehf
driver. Remaining warnings and errors are left untouched on purpose to avoid
making the code less readable.
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Acked-by: Ian Dobson <i.dobson@planet-ian.com>
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conversions
This patch unifies temperature register access, and replaces simple_strtoXXX
with strict_strtoXXX throughout the driver.
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Acked-by: Ian Dobson <i.dobson@planet-ian.com>
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Some fan control chips support a configuration register to set the number of
tachometer pulses per fan revolution. Add an ABI attribute to support this
configuration register.
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Acked-by: Jean Delvare <khali@linux-fr.org>
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LTC4151 is High Voltage I2C Current and Voltage Monitor from Linear
Technology.
Signed-off-by: Per Dalen <per.dalen@appeartv.com>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
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LINEAR16 data format is unsigned, not signed. Impact is that affected
attributes report negative values in the upper half of the supported
value range.
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
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PMBus only has one set of limit registers for up to three temperature sensors.
Thus, changing a limit for one of the temperature sensors affects limits for
other temperature sensors in the same page (and potentially multiple pages
depending on the chip implementation). To handle this situation, re-read all
temperature limit registers when updating sensor data. This way, all affected
temperature limits are updated whenever the limit for a single sensor is
changed.
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
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Assumption so far was that PMBus devices would support TEMP2 and TEMP3 registers
only on page 0, and that only the TEMP1 register would be used/supported
on other pages.
Turns out that is not correct. UCD92xx devices support TEMP1 and TEMP2 on
page 0, and TEMP2 on other pages. So it is necessary to change the core code
such that it does not make a page based assumptions about temperature register
support.
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
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So far, it seemed like fans would either all be in page 0, or that
there would be one page per fan.
Turns out this was a wrong assumption. There is at least one PMBus
fan controller which supports three pages with four fans each.
Update code to handle this situation.
Reported-by: Greg Schnorr <gschnorr@cisco.com>
Tested-by: Greg Schnorr <gschnorr@cisco.com>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Acked-by: Greg Schnorr <gschnorr@cisco.com>
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Some PMBus chips do not support the VOUT_MODE register. To make matters worse,
such chips may not return an error when reading the register either, but instead
return 0xff.
Check if the register exists using pmbus_check_byte_register() before reading
its value. In addition, validate the returned value and ignore it if it is 0xff
(which is invalid).
Reported-by: Greg Schnorr <gschnorr@cisco.com>
Tested-by: Greg Schnorr <gschnorr@cisco.com>
Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Acked-by: Greg Schnorr <gschnorr@cisco.com>
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Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
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Signed-off-by: Guenter Roeck <guenter.roeck@ericsson.com>
Acked-by: Jonathan Cameron <jic23@cam.ac.uk>
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