linux-toradex.git/drivers/watchdog/Makefile, branch v5.5

watchdog: Add i.MX7ULP watchdog support

2019-09-17T06:59:12+00:00

The i.MX7ULP Watchdog Timer (WDOG) module is an independent timer
that is available for system use.
It provides a safety feature to ensure that software is executing
as planned and that the CPU is not stuck in an infinite loop or
executing unintended code. If the WDOG module is not serviced
(refreshed) within a certain period, it resets the MCU.

Add driver support for i.MX7ULP watchdog.

Signed-off-by: Anson Huang 
Reviewed-by: Guenter Roeck 
Link: https://lore.kernel.org/r/1566999303-18795-2-git-send-email-Anson.Huang@nxp.com
Signed-off-by: Guenter Roeck 
Signed-off-by: Wim Van Sebroeck

watchdog: remove w90x900 driver

2019-09-16T20:10:05+00:00

The ARM w90x900 platform is getting removed, so this driver is obsolete

Signed-off-by: Arnd Bergmann 
Acked-by: Guenter Roeck 
Link: https://lore.kernel.org/r/20190809202749.742267-7-arnd@arndb.de
Signed-off-by: Guenter Roeck 
Signed-off-by: Wim Van Sebroeck

watchdog: remove ks8695 driver

2019-09-16T20:10:05+00:00

The platform is getting removed, so there are no remaining
users of this driver.

Signed-off-by: Arnd Bergmann 
Acked-by: Guenter Roeck 
Link: https://lore.kernel.org/r/20190809202749.742267-5-arnd@arndb.de
Signed-off-by: Guenter Roeck 
Signed-off-by: Wim Van Sebroeck

watchdog: imx_sc: Add i.MX system controller watchdog support

2019-05-05T19:02:11+00:00

i.MX8QXP is an ARMv8 SoC which has a Cortex-M4 system controller
inside, the system controller is in charge of controlling power,
clock and watchdog etc..

This patch adds i.MX system controller watchdog driver support,
watchdog operation needs to be done in secure EL3 mode via
ARM-Trusted-Firmware, using SMC call, CPU will trap into
ARM-Trusted-Firmware and then it will request system controller
to do watchdog operation via IPC.

Signed-off-by: Anson Huang 
Reviewed-by: Guenter Roeck 
Signed-off-by: Guenter Roeck 
Signed-off-by: Wim Van Sebroeck

watchdog: bd70528: Initial support for ROHM BD70528 watchdog block

2019-05-05T19:02:10+00:00

Initial support for watchdog block included in ROHM BD70528
power management IC.

Configurations for low power states are still to be checked.

Signed-off-by: Matti Vaittinen 
Acked-by: Guenter Roeck 
Signed-off-by: Guenter Roeck 
Signed-off-by: Wim Van Sebroeck

Merge tag 'linux-watchdog-5.1-rc1' of git://www.linux-watchdog.org/linux-watchdog

2019-03-11T18:22:15+00:00

Pull watchdog updates from Wim Van Sebroeck:

 - a new watchdog driver for the Mellanox systems

 - renesas-wdt: Document r8a77470 support

 - numerous 'Mark expected switch fall-throughs'

 - qcom: Add suspend/resume support

 - some small fixes and documentation updates

* tag 'linux-watchdog-5.1-rc1' of git://www.linux-watchdog.org/linux-watchdog:
  watchdog: w83877f_wdt: Mark expected switch fall-through
  watchdog: sc520_wdt: Mark expected switch fall-through
  watchdog: sbc60xxwdt: Mark expected switch fall-through
  watchdog: smsc37b787_wdt: Mark expected switch fall-through
  watchdog: sc1200: Mark expected switch fall-through
  watchdog: pc87413: Mark expected switch fall-through
  Documentation/watchdog: Add documentation mlx-wdt driver
  watchdog: mlx-wdt: introduce a watchdog driver for Mellanox systems.
  platform_data/mlxreg: additions for Mellanox watchdog driver.
  watchdog: Update sysfs documentation.
  watchdog: dw: remove useless pr_fmt
  watchdog: pika_wdt: drop pointless static qualifier in pikawdt_init
  watchdog/hpwdt: Update Kconfig documentation
  dt-bindings: watchdog: renesas-wdt: Document r8a77470 support
  watchdog: qcom: Add suspend/resume support

watchdog: mlx-wdt: introduce a watchdog driver for Mellanox systems.

2019-03-02T14:28:20+00:00

Introduce watchdog driver for a various range of Mellanox Ethernet and
Infiniband switch systems.

Watchdog driver for Mellanox watchdog devices, implemented in
programmable logic device.

Main and auxiliary watchdog devices can exist on the same system.
There are several actions that can be defined in the watchdog:
system reset, start fans on full speed and increase a counter.
The last 2 actions are performed without a system reset.
Actions without reset are provided for auxiliary watchdog devices,
which is optional.
Access to HW registers is performed through generic
regmap interface.

There are 2 types of HW watchdog implementations.
Type 1: actual HW timeout can be defined as power of 2 msec.
e.g. timeout 20 sec will be rounded up to 32768 msec.;
maximum timeout period is 32 sec (32768 msec.);
get time-left isn't supported
Type 2: actual HW timeout is defined in sec. and it's the same as
user-defined timeout;
maximum timeout is 255 sec;
get time-left is supported;

Watchdog driver is probed from the common mlx_platform driver.

Signed-off-by: Michael Shych 
Reviewed-by: Guenter Roeck 
Signed-off-by: Guenter Roeck 
Signed-off-by: Wim Van Sebroeck

watchdog: stpmic1: Add STPMIC1 watchdog driver

2019-01-16T14:01:19+00:00

The STPMIC1 PMIC embeds a watchdog which is disabled by default. As soon
as the watchdog is started, it must be refreshed periodically otherwise
the PMIC goes off.

Signed-off-by: Pascal Paillet 
Reviewed-by: Guenter Roeck 
Signed-off-by: Lee Jones

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: 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