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authorAlexandre Belloni <alexandre.belloni@bootlin.com>2019-10-07 15:47:19 +0200
committerAlexandre Belloni <alexandre.belloni@bootlin.com>2019-10-07 15:49:29 +0200
commit088443c79c7720470e353fa46eb1acf642b05822 (patch)
treeac75e13d5b6107a617e91413852ba8a3091ed3c5 /drivers/rtc/rtc-ds1347.c
parentff7f9e0533ffb47a18090b8cfd6fe69ef757d7e7 (diff)
downloadlinux-088443c79c7720470e353fa46eb1acf642b05822.tar.bz2
rtc: ds1347: mask ALM OUT when reading time
Bit 7 of the minutes registers is ALM OUT. It indicates an alarm fired. Mask it out when reading the time. Link: https://lore.kernel.org/r/20191007134724.15505-5-alexandre.belloni@bootlin.com Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Diffstat (limited to 'drivers/rtc/rtc-ds1347.c')
-rw-r--r--drivers/rtc/rtc-ds1347.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/rtc/rtc-ds1347.c b/drivers/rtc/rtc-ds1347.c
index 06abf0b47e16..763eb60e5e8f 100644
--- a/drivers/rtc/rtc-ds1347.c
+++ b/drivers/rtc/rtc-ds1347.c
@@ -52,7 +52,7 @@ static int ds1347_read_time(struct device *dev, struct rtc_time *dt)
return err;
dt->tm_sec = bcd2bin(buf[0]);
- dt->tm_min = bcd2bin(buf[1]);
+ dt->tm_min = bcd2bin(buf[1] & 0x7f);
dt->tm_hour = bcd2bin(buf[2] & 0x3F);
dt->tm_mday = bcd2bin(buf[3]);
dt->tm_mon = bcd2bin(buf[4]) - 1;