From 088443c79c7720470e353fa46eb1acf642b05822 Mon Sep 17 00:00:00 2001 From: Alexandre Belloni Date: Mon, 7 Oct 2019 15:47:19 +0200 Subject: [PATCH] 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 --- 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 06abf0b..763eb60 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; -- 2.7.4