[PATCH] rtc: at91rm9200: clear RTC alarm status flag prior to suspending
From: Wenyou Yang <hidden>
Date: 2015-10-12 01:21:37
Also in:
linux-rtc, lkml
Subsystem:
real time clock (rtc) subsystem, the rest · Maintainers:
Alexandre Belloni, Linus Torvalds
This patch is to clear the RTC alarm status flag prior to suspending to avoid the erroneous wake-up activity. Signed-off-by: Wenyou Yang <redacted> --- drivers/rtc/rtc-at91rm9200.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/rtc/rtc-at91rm9200.c b/drivers/rtc/rtc-at91rm9200.c
index cb62e21..b60fd47 100644
--- a/drivers/rtc/rtc-at91rm9200.c
+++ b/drivers/rtc/rtc-at91rm9200.c@@ -495,6 +495,8 @@ static int at91_rtc_suspend(struct device *dev) /* this IRQ is shared with DBGU and other hardware which isn't * necessarily doing PM like we are... */ + at91_rtc_write(AT91_RTC_SCCR, AT91_RTC_ALARM); + at91_rtc_imr = at91_rtc_read_imr() & (AT91_RTC_ALARM|AT91_RTC_SECEV); if (at91_rtc_imr) {
--
1.7.9.5