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SubjectRe: Fwd: [PATCH 1/8] watchdog: davinci: change driver to use WDT core
On Wednesday 06 November 2013 06:31 AM, ivan.khoronzhuk wrote:
> To reduce code duplicate and increase code readability use WDT core
> code to handle WDT interface.
>
> Remove io_lock as the WDT core uses mutex to lock each wdt device.
> Remove wdt_state as the WDT core track state with its own variable.
>
> The watchdog_init_timeout() can read timeout value from timeout-sec
> property if the passed value is out of bounds. So set initial
> heartbeat value more than max value in order to initialize heartbeat
> in next way. If heartbeat is not set thought module parameter, try
> to read it's value from WDT node timeout-sec property. If node has
> no one, use default value.
>
> The heartbeat is hold in wdd->timeout by WDT core, so use it in
> order to set timeout period.
>
> Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@ti.com>
> ---
> drivers/watchdog/Kconfig | 1 +
> drivers/watchdog/davinci_wdt.c | 150 ++++++++++------------------------------
> 2 files changed, 38 insertions(+), 113 deletions(-)
>
> diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
> index d1d53f3..2c954b5 100644
> --- a/drivers/watchdog/Kconfig
> +++ b/drivers/watchdog/Kconfig
> @@ -271,6 +271,7 @@ config IOP_WATCHDOG
> config DAVINCI_WATCHDOG
> tristate "DaVinci watchdog"
> depends on ARCH_DAVINCI
> + select WATCHDOG_CORE
> help
> Say Y here if to include support for the watchdog timer
> in the DaVinci DM644x/DM646x processors.
> diff --git a/drivers/watchdog/davinci_wdt.c b/drivers/watchdog/davinci_wdt.c
> index bead774..a6eef71 100644
> --- a/drivers/watchdog/davinci_wdt.c
> +++ b/drivers/watchdog/davinci_wdt.c
> @@ -3,7 +3,7 @@
> *
> * Watchdog driver for DaVinci DM644x/DM646x processors
> *
> - * Copyright (C) 2006 Texas Instruments.
> + * Copyright (C) 2013 Texas Instruments.
s/2013/2006-2013

Apart from the minor nit, this is really nice clean-up and
more aligned with wdt coer leayer.

FWIW, Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>


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