This patch adds spin_lock_irq() and spin_unlock_irq() during
alarm interrupt configuration to avoid interrupt missing.
Cc: Ben Dooks <ben-linux@xxxxxxxxx>
Cc: Wan ZongShun <mcuos.com@xxxxxxxxx>
Cc: Alessandro Zummo <a.zummo@xxxxxxxxxxxx>
Signed-off-by: Kukjin Kim <kgene.kim@xxxxxxxxxxx>
---
drivers/rtc/rtc-s3c.c | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/drivers/rtc/rtc-s3c.c b/drivers/rtc/rtc-s3c.c
index e2636ff..bb88027 100644
--- a/drivers/rtc/rtc-s3c.c
+++ b/drivers/rtc/rtc-s3c.c
@@ -82,12 +82,14 @@ static int s3c_rtc_setaie(struct device *dev, unsigned int enabled)
pr_debug("%s: aie=%d\n", __func__, enabled);
+ spin_lock_irq(&s3c_rtc_pie_lock);
tmp = readb(s3c_rtc_base + S3C2410_RTCALM) & ~S3C2410_RTCALM_ALMEN;
if (enabled)
tmp |= S3C2410_RTCALM_ALMEN;
writeb(tmp, s3c_rtc_base + S3C2410_RTCALM);
+ spin_unlock_irq(&s3c_rtc_pie_lock);
return 0;
}
--
1.6.2.5
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