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path: root/drivers/rtc/rtc-omap.c
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-rw-r--r--drivers/rtc/rtc-omap.c9
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 = {