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| author | Peter Fordham <peter.fordham@gmail.com> | 2011-06-15 13:18:32 -0700 |
|---|---|---|
| committer | Wim Van Sebroeck <wim@iguana.be> | 2011-07-22 09:00:20 +0000 |
| commit | 641e4f449512ced3a3b784b33ce191e664a6d2dd (patch) | |
| tree | 391a4f648f81762295989973be9d5ceb3e0a1a0e /drivers/watchdog | |
| parent | fad0a9dd0da2dc9971e0e71f41134c791f2030c2 (diff) | |
watchdog: mpcore_wdt: Add suspend/resume support.
Add support for suspend and resume to the MPCore watchdog driver.
Signed-off-by: Peter Fordham <peter.fordham@gmail.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Diffstat (limited to 'drivers/watchdog')
| -rw-r--r-- | drivers/watchdog/mpcore_wdt.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/drivers/watchdog/mpcore_wdt.c b/drivers/watchdog/mpcore_wdt.c index 2b4af222b5f2..4dc31024d26c 100644 --- a/drivers/watchdog/mpcore_wdt.c +++ b/drivers/watchdog/mpcore_wdt.c @@ -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, |