Bit 7 of the minutes registers is ALM OUT. It indicates an alarm fired. Mask it out when reading the time. Signed-off-by: Alexandre Belloni <alexandre.belloni@xxxxxxxxxxx> --- drivers/rtc/rtc-ds1347.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) 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; -- 2.21.0
