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rtc: omap: enable wake-up from power off

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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]>
This commit is contained in:
Johan Hovold 2014-12-10 15:53:16 -08:00 • committed by Linus Torvalds
commit 8ad5c722d5
1 changed files with 8 additions and 1 deletions
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9
drivers/rtc/rtc-omap.c
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@ -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 = {