[05/10] rtc: ds1347: mask ALM OUT when reading time
diff mbox series

Message ID 20191007134724.15505-5-alexandre.belloni@bootlin.com
State Accepted
Commit 088443c79c7720470e353fa46eb1acf642b05822
Headers show
Series
  • [01/10] rtc: add a timestamp for year 0
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Commit Message

Alexandre Belloni Oct. 7, 2019, 1:47 p.m. UTC
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@bootlin.com>
---
 drivers/rtc/rtc-ds1347.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Patch
diff mbox series

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;