Re: [PATCH v2 0/7] Watchdog: introduce ARM SBSA watchdog driver

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For patch 1,4,5,6,and 7, I have tested this on AMD Seattle platform.

Tested-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@xxxxxxx>

Thanks,

Suravee

On 5/21/15 03:32, fu.wei@xxxxxxxxxx wrote:
From: Fu Wei <fu.wei@xxxxxxxxxx>

This patchset:

     (1)Export "arch_timer_get_rate" in arm_arch_timer.c for the
     other drivers, like SBSA watchdog driver

     (2)Introduce Documentation/devicetree/bindings/watchdog/sbsa-gwdt.txt
     for FDT info of SBSA Generic Watchdog, and give two examples of
     adding SBSA Generic Watchdog device node into the dts files:
     foundation-v8.dts and amd-seattle-soc.dtsi.

     (3)Introduce "pretimeout" into the watchdog framework, and update
     Documentation/watchdog/watchdog-kernel-api.txt to introduce:
         (1)the new elements in the watchdog_device and watchdog_ops struct;
         (2)the new API "watchdog_init_timeouts".

     (4)Introduce ARM SBSA watchdog driver:
         a.Use linux kernel watchdog framework;
         b.Work with FDT on ARM64;
         c.Use "pretimeout" in watchdog framework;
         d.In first timeout(WS0), do panic to save system context;
         e.Support geting timeout and pretimeout from parameter and FDT
           at the driver init stage.

     (5)Parse SBSA Generic Watchdog Structure in GTDT table of ACPI,
     and create a platform device with that information.
     This platform device can be used by This Watchdog driver.

This patchset has been tested with watchdog daemon
(ACPI/FDT, module/build-in) on the following platforms:
     (1)ARM Foundation v8 model
     (2)AMD Seattle B0

Changelog:
v2: Improve watchdog-kernel-api.txt documentation for pretimeout support.
     Export "arch_timer_get_rate" in arm_arch_timer.c.
     Add watchdog_init_timeouts API for pretimeout support in framework.
     Improve suspend and resume foundation in driver
     Improve timeout/pretimeout values init code in driver.
     Delete unnecessary items of the sbsa_gwdt struct and #define.
     Delete all unnecessary debug info in driver.
     Fix 64bit division bug.
     Use the arch_timer interface to get watchdog clock rate.
     Add MODULE_DEVICE_TABLE for platform device id.
     Fix typoes.

v1: The first version upstream patchset to linux mailing list

Fu Wei (7):
   clocksource: export "arch_timer_get_rate" for the other drivers
   Documentation: add sbsa-gwdt.txt documentation
   ARM64: add SBSA Generic Watchdog device node in foundation-v8.dts
   ARM64: add SBSA Generic Watchdog device node in amd-seattle-soc.dtsi
   Watchdog: introduce "pretimeout" into framework
   Watchdog: introduce ARM SBSA watchdog driver
   ACPI: import watchdog info of GTDT into platform device

  .../devicetree/bindings/watchdog/sbsa-gwdt.txt     |  36 ++
  Documentation/watchdog/watchdog-kernel-api.txt     |  62 ++-
  arch/arm64/boot/dts/amd/amd-seattle-soc.dtsi       |  11 +
  arch/arm64/boot/dts/arm/foundation-v8.dts          |  10 +
  arch/arm64/kernel/acpi.c                           | 136 ++++++
  drivers/clocksource/arm_arch_timer.c               |   1 +
  drivers/watchdog/Kconfig                           |  12 +
  drivers/watchdog/Makefile                          |   1 +
  drivers/watchdog/sbsa_gwdt.c                       | 476 +++++++++++++++++++++
  drivers/watchdog/watchdog_core.c                   | 103 +++--
  drivers/watchdog/watchdog_dev.c                    |  48 +++
  include/linux/watchdog.h                           |  30 +-
  12 files changed, 891 insertions(+), 35 deletions(-)
  create mode 100644 Documentation/devicetree/bindings/watchdog/sbsa-gwdt.txt
  create mode 100644 drivers/watchdog/sbsa_gwdt.c

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