diff options
| author | Johan Hovold <[email protected]> | 2014-12-10 15:53:16 -0800 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2014-12-10 17:41:14 -0800 |
| commit | 8ad5c722d592ae1965195651965c02396b42fe1a (patch) | |
| tree | 2da2c70ddd41d6d3eced2d484a194a03d83ef731 | |
| parent | 222a12fca6048249d9007f2a4c5fbcea532e8522 (diff) | |
rtc: omap: enable wake-up from power off
The ALARM interrupt must not be disabled during shutdown in order to be
able to power up the system using an RTC alarm.
Signed-off-by: Johan Hovold <[email protected]>
Cc: Alessandro Zummo <[email protected]>
Cc: Tony Lindgren <[email protected]>
Cc: Benot Cousson <[email protected]>
Cc: Lokesh Vutla <[email protected]>
Cc: Guenter Roeck <[email protected]>
Cc: Sekhar Nori <[email protected]>
Cc: Tero Kristo <[email protected]>
Cc: Keerthy J <[email protected]>
Tested-by: Felipe Balbi <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
| -rw-r--r-- | drivers/rtc/rtc-omap.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/rtc/rtc-omap.c b/drivers/rtc/rtc-omap.c index e83f51ae7f63..0dfb0404f867 100644 --- a/drivers/rtc/rtc-omap.c +++ b/drivers/rtc/rtc-omap.c @@ -694,8 +694,15 @@ static SIMPLE_DEV_PM_OPS(omap_rtc_pm_ops, omap_rtc_suspend, omap_rtc_resume); static void omap_rtc_shutdown(struct platform_device *pdev) { struct omap_rtc *rtc = platform_get_drvdata(pdev); + u8 mask; - rtc_write(rtc, OMAP_RTC_INTERRUPTS_REG, 0); + /* + * Keep the ALARM interrupt enabled to allow the system to power up on + * alarm events. + */ + mask = rtc_read(rtc, OMAP_RTC_INTERRUPTS_REG); + mask &= OMAP_RTC_INTERRUPTS_IT_ALARM; + rtc_write(rtc, OMAP_RTC_INTERRUPTS_REG, mask); } static struct platform_driver omap_rtc_driver = { |