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authorHuacai Chen <chenhc@lemote.com>2020-06-20 20:04:43 +0800
committerAlexandre Belloni <alexandre.belloni@bootlin.com>2020-07-16 11:15:43 +0200
commit22f8d5a1bf230cf8567a4121fc3789babb46336d (patch)
tree72cb58f4a9bf02254a9b6aeedc3ad4f301598fc9 /drivers/rtc
parentd8f090dbeafdcc3d30761aa0062f19d1adf9ef08 (diff)
rtc: goldfish: Enable interrupt in set_alarm() when necessary
When use goldfish rtc, the "hwclock" command fails with "select() to /dev/rtc to wait for clock tick timed out". This is because "hwclock" need the set_alarm() hook to enable interrupt when alrm->enabled is true. This operation is missing in goldfish rtc (but other rtc drivers, such as cmos rtc, enable interrupt here), so add it. Signed-off-by: Huacai Chen <chenhc@lemote.com> Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Link: https://lore.kernel.org/r/1592654683-31314-1-git-send-email-chenhc@lemote.com
Diffstat (limited to 'drivers/rtc')
-rw-r--r--drivers/rtc/rtc-goldfish.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/rtc/rtc-goldfish.c b/drivers/rtc/rtc-goldfish.c
index 27797157fcb3..6349d2cd3680 100644
--- a/drivers/rtc/rtc-goldfish.c
+++ b/drivers/rtc/rtc-goldfish.c
@@ -73,6 +73,7 @@ static int goldfish_rtc_set_alarm(struct device *dev,
rtc_alarm64 = rtc_tm_to_time64(&alrm->time) * NSEC_PER_SEC;
writel((rtc_alarm64 >> 32), base + TIMER_ALARM_HIGH);
writel(rtc_alarm64, base + TIMER_ALARM_LOW);
+ writel(1, base + TIMER_IRQ_ENABLED);
} else {
/*
* if this function was called with enabled=0