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Groups > linux.kernel > #1409112

[PATCH 0/3] watchdog: Add Amlogic Meson GXBB Watchdog Timer driver

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Adds support for the Amlogic Meson GXBB SoC Watchdog Timer.
It differs from the meson6/meson8b HW, so need for a separate driver.
The HW provides a divider capable of having a 1ms timebase thus simplifying
the counter update.
The restart call is not provided even if the HW is capable of triggering a
system reset immediately because of the PSCI firmare having such functionnality.
The watchdog is not expected to be running at boot time since there is a separate
system-level watchdog running from the SCPI co-processor, but this case would be
handle in a next driver update.

Changes since RFC version at http://lkml.kernel.org/r/1464249112-13658-1-git-send-email-narmstrong@baylibre.com :
- Remove status callback, will re-introduce it later to managed the already-running use case
- Fix registers defines indentation
- Fix space between operators
- Make all callbacks static functions
- Fix bindings with missing clocks attribute
- Do not stop/start watchdog on a timeout setup
- Fix probe device configuration

Neil Armstrong (3):
  watchdog: Add Meson GXBB Watchdog Driver
  dt-bindings: watchdog: Add Meson GXBB Watchdog bindings
  ARM64: dts: amlogic: meson-gxbb: Add watchdog node

 .../bindings/watchdog/meson-gxbb-wdt.txt           |  16 ++
 arch/arm64/boot/dts/amlogic/meson-gxbb.dtsi        |   6 +
 drivers/watchdog/Makefile                          |   1 +
 drivers/watchdog/meson_gxbb_wdt.c                  | 277 +++++++++++++++++++++
 4 files changed, 300 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/watchdog/meson-gxbb-wdt.txt
 create mode 100644 drivers/watchdog/meson_gxbb_wdt.c

-- 
2.7.0

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[PATCH 0/3] watchdog: Add Amlogic Meson GXBB Watchdog Timer driver Neil Armstrong <narmstrong@baylibre.com> - 2016-05-30 15:30 +0200
  [PATCH 3/3] ARM64: dts: amlogic: meson-gxbb: Add watchdog node Neil Armstrong <narmstrong@baylibre.com> - 2016-05-30 15:30 +0200
  [PATCH 1/3] watchdog: Add Meson GXBB Watchdog Driver Neil Armstrong <narmstrong@baylibre.com> - 2016-05-30 15:30 +0200
    Re: [PATCH 1/3] watchdog: Add Meson GXBB Watchdog Driver Carlo Caione <carlo@caione.org> - 2016-05-30 16:00 +0200
    Re: [PATCH 1/3] watchdog: Add Meson GXBB Watchdog Driver Guenter Roeck <linux@roeck-us.net> - 2016-05-30 16:50 +0200
    Re: [PATCH 1/3] watchdog: Add Meson GXBB Watchdog Driver Guenter Roeck <linux@roeck-us.net> - 2016-05-30 19:00 +0200
  Re: [PATCH 0/3] watchdog: Add Amlogic Meson GXBB Watchdog Timer  driver Carlo Caione <carlo@caione.org> - 2016-05-30 15:50 +0200
    Re: [PATCH 0/3] watchdog: Add Amlogic Meson GXBB Watchdog Timer  driver Neil Armstrong <narmstrong@baylibre.com> - 2016-05-30 16:20 +0200
  [PATCH 2/3] dt-bindings: watchdog: Add Meson GXBB Watchdog bindings Neil Armstrong <narmstrong@baylibre.com> - 2016-05-30 16:20 +0200

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