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drivers/rtc/rtc-twl.c: simplify RTC interrupt clearing 

For clearing RTC interrupt, programming ALARM bit only is sufficient, as
all other bits are any way not affected by writing 0 to them.

Hence removed unwanted OR operation.

Signed-off-by: Venu Byravarasu <vbyravarasu@nvidia.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
hifive-unleashed-5.1
Venu Byravarasu 2012-03-23 15:02:33 -07:00 committed by Linus Torvalds
parent f7439bcb74
commit 94a339d016
1 changed files with 1 additions and 1 deletions
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2
drivers/rtc/rtc-twl.c
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@ -384,7 +384,7 @@ static irqreturn_t twl_rtc_interrupt(int irq, void *rtc)
else
events |= RTC_IRQF | RTC_UF;
res = twl_rtc_write_u8(rd_reg | BIT_RTC_STATUS_REG_ALARM_M,
res = twl_rtc_write_u8(BIT_RTC_STATUS_REG_ALARM_M,
REG_RTC_STATUS_REG);
if (res)
goto out;