[PATCH v4 0/8] watchdog/at91sam9_wdt: Convert to use the new framework

[Wenyou Yang]

Hi, All

The purpose of the patch series is to convert at91sam9_wdt to use the watchdog framework,
 
Because the Watchdog Mode Register(WDT_MR) which WDDIS bit to disable or disable the watchdog
can be written only once after reset. so if you want to use the watchdog in the kernel, 
you must be sure the watchdog doesn't be disabled in the at91bootstrap.

It is tested on at91sam9m10g45ek both DT and non-DT support, at91sam9g25ek with DT support
by building Documentation/watchdog/src/watchdog-simple.c.

It is based on v3.8-rc6 + Arnd Bergmann's at91_wdt_dt_ids cannot be __init
			+ Fabio Porcedda's add timeout-sec property binding

ChangeLog 
v4:
  - remove the patch: Use module_platform_driver().
  - add tested on at91sam9m10g45ek both DT and non-DT support.
  - rebase on v3.8-rc6 

v3:
  - The helper function 'watchdog_is_open' is moved to include/linux/watchdog.h
  - Remove '__init' annotation from the function 'at91wdt_probe'
  - Rebase on v3.8-rc2

v2:
  - Remove the patches to add devive tree support which Fabio Porcedda has applied.
  - Replace __raw_readl, __raw_writel with readl_relaxed, writel_relaxed.
  - Rebase on v3.7-rc8.

Best Regards
Wenyou Yang

Wenyou Yang (8):
  watchdog: add the function watchdog_is_open
  watchdog/at91sam9_wdt: Remove at91wdt_private and add at91wdt_drvdata
    struct
  watchdog/at91sam9_wdt: Convert to use the watchdog framework
  watchdog/at91sam9_wdt: Adjust the options of watchdog_info
  watchdog/at91sam9_wdt: Add nowayout helpers to Watchdog Timer Driver
    Kernel API
  watchdog/at91sam9_wdt: Remove the __initdata of at91wdt_wdd
  ARM: dts: add the watchdog nodes for at91sam9x5 and at91sam9n12 SoC
  ARM: dts: add the watchdog nodes for at91sam9g25ek and
    at91sam9m10g45ek boards

 arch/arm/boot/dts/at91sam9m10g45ek.dts |    4 +
 arch/arm/boot/dts/at91sam9n12.dtsi     |    6 +
 arch/arm/boot/dts/at91sam9x5.dtsi      |    6 +
 arch/arm/boot/dts/at91sam9x5ek.dtsi    |    4 +
 drivers/watchdog/at91sam9_wdt.c        |  272 +++++++++++++-------------------
 include/linux/watchdog.h               |    8 +
 6 files changed, 140 insertions(+), 160 deletions(-)

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1.7.9.5