[PATCH] rtc: at91rm9200: clear RTC alarm status flag prior to suspending
From: Alexandre Belloni <hidden>
Date: 2015-10-12 06:53:29
Also in:
linux-rtc, lkml
Hi Wenyou, On 12/10/2015 at 09:17:57 +0800, Wenyou Yang wrote :
This patch is to clear the RTC alarm status flag prior to suspending to avoid the erroneous wake-up activity.
Is this a new issue appearing with the sama5d2 or was it present from the beginning?
quoted hunk ↗ jump to hunk
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
-- Alexandre Belloni, Free Electrons Embedded Linux, Kernel and Android engineering http://free-electrons.com