Re: [STLinux Kernel] [PATCH v3 5/8] watchdog: st_wdt: Add new driver for ST's LPC Watchdog

From: Peter Griffin
Date: Mon Feb 23 2015 - 05:25:40 EST


Hi Lee,

<snip>

> +#ifdef CONFIG_PM_SLEEP
> +static int st_wdog_suspend(struct device *dev)
> +{
> + struct st_wdog *st_wdog = watchdog_get_drvdata(&st_wdog_dev);
> +
> + if (watchdog_active(&st_wdog_dev))
> + st_wdog_stop(&st_wdog_dev);
> +
> + st_wdog_setup(st_wdog, false);

I was expecting the suspend / resume callbacks would be disabling / enabling
the IP clock.

Is there a reason why it doesn't?

>From looking at the code by this point the watchdog has already been disabled so gating
the IP seems reasonable.

regards,

Peter
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