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Commit 641e4f44 authored by Peter Fordham's avatar Peter Fordham Committed by Wim Van Sebroeck
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watchdog: mpcore_wdt: Add suspend/resume support. 



Add support for suspend and resume to the MPCore watchdog driver.

Signed-off-by: default avatarPeter Fordham <peter.fordham@gmail.com>
Signed-off-by: default avatarWim Van Sebroeck <wim@iguana.be>
parent fad0a9dd

drivers/watchdog/mpcore_wdt.c

+23 −0
Original line number Diff line number Diff line
@@ -407,12 +407,35 @@ static int __devexit mpcore_wdt_remove(struct platform_device *dev) 
	return 0;

}



#ifdef CONFIG_PM

static int mpcore_wdt_suspend(struct platform_device *dev, pm_message_t msg)

{

	struct mpcore_wdt *wdt = platform_get_drvdata(dev);

	mpcore_wdt_stop(wdt);		/* Turn the WDT off */

	return 0;

}



static int mpcore_wdt_resume(struct platform_device *dev)

{

	struct mpcore_wdt *wdt = platform_get_drvdata(dev);

	/* re-activate timer */

	if (test_bit(0, &wdt->timer_alive))

		mpcore_wdt_start(wdt);

	return 0;

}

#else

#define mpcore_wdt_suspend	NULL

#define mpcore_wdt_resume	NULL

#endif



/* work with hotplug and coldplug */

MODULE_ALIAS("platform:mpcore_wdt");



static struct platform_driver mpcore_wdt_driver = {

	.probe		= mpcore_wdt_probe,

	.remove		= __devexit_p(mpcore_wdt_remove),

	.suspend	= mpcore_wdt_suspend,

	.resume		= mpcore_wdt_resume,

	.shutdown	= mpcore_wdt_shutdown,

	.driver		= {

		.owner	= THIS_MODULE,