diff options
| author | Janusz Uzycki <j.uzycki@elproma.com.pl> | 2014-09-22 22:55:47 +0200 |
|---|---|---|
| committer | Wim Van Sebroeck <wim@iguana.be> | 2014-10-20 20:55:54 +0200 |
| commit | 3281b85c8697938e344d67144ca8ba520fa54d2b (patch) | |
| tree | 8a2fbd7f020bc50dcce4f27b00bc2434dd3d0c93 /drivers/watchdog | |
| parent | 5e9c16e3760893b3721f599f180795ca7160afef (diff) | |
| download | linux-3281b85c8697938e344d67144ca8ba520fa54d2b.tar.bz2 | |
stmp3xxx_rtc_wdt: Add suspend/resume PM support
There is no conflict with rtc/rtc-stmp3xxx.c parent
because modified registers in PM functions of stmp3xxx_rtc_wdt
are different.
Signed-off-by: Janusz Uzycki <j.uzycki@elproma.com.pl>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Diffstat (limited to 'drivers/watchdog')
| -rw-r--r-- | drivers/watchdog/stmp3xxx_rtc_wdt.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/watchdog/stmp3xxx_rtc_wdt.c b/drivers/watchdog/stmp3xxx_rtc_wdt.c index 3804d5e9baea..a62b1b6decf4 100644 --- a/drivers/watchdog/stmp3xxx_rtc_wdt.c +++ b/drivers/watchdog/stmp3xxx_rtc_wdt.c @@ -94,9 +94,33 @@ static int stmp3xxx_wdt_remove(struct platform_device *pdev) return 0; } +static int __maybe_unused stmp3xxx_wdt_suspend(struct device *dev) +{ + struct watchdog_device *wdd = &stmp3xxx_wdd; + + if (watchdog_active(wdd)) + return wdt_stop(wdd); + + return 0; +} + +static int __maybe_unused stmp3xxx_wdt_resume(struct device *dev) +{ + struct watchdog_device *wdd = &stmp3xxx_wdd; + + if (watchdog_active(wdd)) + return wdt_start(wdd); + + return 0; +} + +static SIMPLE_DEV_PM_OPS(stmp3xxx_wdt_pm_ops, + stmp3xxx_wdt_suspend, stmp3xxx_wdt_resume); + static struct platform_driver stmp3xxx_wdt_driver = { .driver = { .name = "stmp3xxx_rtc_wdt", + .pm = &stmp3xxx_wdt_pm_ops, }, .probe = stmp3xxx_wdt_probe, .remove = stmp3xxx_wdt_remove, |