On Wed, Dec 04, 2013 at 09:39:26PM +0200, 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 tracks 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. The heartbeat is
> initialized 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.
> 
> Acked-by: Santosh Shilimkar <[email protected]>
> Reviewed-by: Guenter Roeck <[email protected]>
> Signed-off-by: Ivan Khoronzhuk <[email protected]>

Looks good, except you did not explain ...

>  
> -     dev_info(dev, "heartbeat %d sec\n", heartbeat);
> +     watchdog_set_nowayout(wdd, 1);
>  
why nowayout is enforced.

Thanks,
Guenter
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