linux-toradex.git/drivers/watchdog, branch v5.0

watchdog: tqmx86: Fix a couple IS_ERR() vs NULL bugs

2019-01-07T09:10:35+00:00

These functions return NULL on error but we accidentally check
for IS_ERR() instead.

Fixes: e3c21e088f89 ("watchdog: tqmx86: Add watchdog driver for the IO controller")
Signed-off-by: Dan Carpenter 
Reviewed-by: Andrew Lunn 
Reviewed-by: Guenter Roeck 
Signed-off-by: Guenter Roeck 
Signed-off-by: Wim Van Sebroeck

watchdog: mt7621_wdt/rt2880_wdt: Fix compilation problem

2019-01-07T09:10:35+00:00

These files need
   #include 
to compile correctly.

Fixes: ac3167257b9f ("headers: separate linux/mod_devicetable.h from linux/platform_device.h")
Signed-off-by: NeilBrown 
Reviewed-by: Guenter Roeck 
Signed-off-by: Guenter Roeck 
Signed-off-by: Wim Van Sebroeck

Merge tag 'linux-watchdog-4.21-rc1' of git://www.linux-watchdog.org/linux-watchdog

2019-01-01T21:16:45+00:00

Pull watchdog updates from Wim Van Sebroeck:
 - add TQ-Systems TQMX86 watchdog driver
 - add Qualcomm PM8916 watchdog driver
 - w83627hf_wdt: add quirk for Inves system
 - renesas_wdt: several improvements and document r8a774c0 support
 - mena21_wdt, mtx-1: Convert to use GPIO descriptor
 - bcm281xx, ie6xx_wdt: convert to DEFINE_SHOW_ATTRIBUTE
 - documentation: add PM usage and kernel-api: don't reference removed functions
 - update bindings for MT7629 SoC
 - several small fixes

* tag 'linux-watchdog-4.21-rc1' of git://www.linux-watchdog.org/linux-watchdog: (22 commits)
  watchdog: tqmx86: Add watchdog driver for the IO controller
  dt-bindings: watchdog: renesas-wdt: Document r8a774c0 support
  watchdog: docs: kernel-api: don't reference removed functions
  watchdog: add documentation for PM usage
  watchdog: mtx-1: Convert to use GPIO descriptor
  watchdog: mena21_wdt: Convert to GPIO descriptors
  dt-bindings: watchdog: Add Qualcomm PM8916 watchdog
  watchdog: Add pm8916 watchdog driver
  dt-bindings: watchdog: update bindings for MT7629 SoC
  watchdog: renesas_wdt: don't keep timer value during suspend/resume
  watchdog: ie6xx_wdt: convert to DEFINE_SHOW_ATTRIBUTE
  watchdog: bcm281xx: convert to DEFINE_SHOW_ATTRIBUTE
  watchdog: asm9260_wdt: make array mode_name static, shrinks object size
  watchdog/hpwdt: Update driver version.
  watchdog/hpwdt: Do not claim unsupported hardware
  watchdog/hpwdt: Exclude via blacklist
  Watchdog: remove outdated comment
  watchdog: w83627hf_wdt: Add quirk for Inves system
  watchdog: cpwd: add of_node_put()
  watchdog: renesas_wdt: don't set divider while watchdog is running
  ...

watchdog: tqmx86: Add watchdog driver for the IO controller

2018-12-24T12:15:07+00:00

Some TQ-Systems ComExpress modules have an IO controller with a
watchdog timer.

Signed-off-by: Andrew Lunn 
Reviewed-by: Guenter Roeck 
Signed-off-by: Guenter Roeck 
Signed-off-by: Wim Van Sebroeck

watchdog: mtx-1: Convert to use GPIO descriptor

2018-12-24T07:27:56+00:00

This converts the MTX-1 driver to grab a GPIO descriptor
associated with the device instead of using a resource with
a global GPIO number. Augment the driver and the boardfile.

Cc: Ralf Baechle 
Cc: Paul Burton 
Cc: James Hogan 
Cc: linux-mips@linux-mips.org
Cc: Florian Fainelli 
Reviewed-by: Florian Fainelli 
Signed-off-by: Linus Walleij 
Acked-by: Paul Burton 
Reviewed-by: Guenter Roeck 
Signed-off-by: Guenter Roeck 
Signed-off-by: Wim Van Sebroeck

watchdog: mena21_wdt: Convert to GPIO descriptors

2018-12-22T11:15:34+00:00

This drops the old OF API use to look up global GPIO
numbers and replace it with the GPIO descriptor API.

Cc: Johannes Thumshirn 
Cc: Johannes Thumshirn 
Cc: Johannes Thumshirn 
Signed-off-by: Linus Walleij 
Acked-by: Johannes Thumshirn 
Reviewed-by: Guenter Roeck 
Signed-off-by: Guenter Roeck 
Signed-off-by: Wim Van Sebroeck

watchdog: Add pm8916 watchdog driver

2018-12-22T11:15:33+00:00

The PM816 module is a versatile PMIC with many diverse functions
integrated, including, a watchdog.
This watchdog is subcomponent of the PON (Power On) peripheral,
in the same way as pwrkey/resin buttons.
It works with two timers (2-stages), the first one generates an
IRQ to the main SoC (APQ8016/MSM8916), the second one performs
the reset.

This driver expects the following device hierarchy:
[pm8916]->[pm8916-pon]->[pm8916-wdt]

It uses the pm8916 regmap to access PM8916 registers.

Signed-off-by: Loic Poulain 
Reviewed-by: Guenter Roeck 
Signed-off-by: Guenter Roeck 
Signed-off-by: Wim Van Sebroeck

watchdog: renesas_wdt: don't keep timer value during suspend/resume

2018-12-22T11:15:32+00:00

After discussing this mail thread [1] again, we concluded that giving
userspace enough time to prepare is our favourite option. So, do not
keep the time value when suspended but reset it when resuming.

[1] https://patchwork.kernel.org/patch/10252209/

Signed-off-by: Wolfram Sang 
Reviewed-by: Geert Uytterhoeven 
Reviewed-by: Guenter Roeck 
Reviewed-by: Fabrizio Castro 
Signed-off-by: Guenter Roeck 
Signed-off-by: Wim Van Sebroeck

watchdog: ie6xx_wdt: convert to DEFINE_SHOW_ATTRIBUTE

2018-12-22T11:15:32+00:00

Use DEFINE_SHOW_ATTRIBUTE macro to simplify the code.

Signed-off-by: Yangtao Li 
Reviewed-by: Guenter Roeck 
Signed-off-by: Guenter Roeck 
Signed-off-by: Wim Van Sebroeck

watchdog: bcm281xx: convert to DEFINE_SHOW_ATTRIBUTE

2018-12-22T11:15:32+00:00

Use DEFINE_SHOW_ATTRIBUTE macro to simplify the code.

Signed-off-by: Yangtao Li 
Reviewed-by: Guenter Roeck 
Signed-off-by: Guenter Roeck 
Signed-off-by: Wim Van Sebroeck