leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity

rtc: m41t80: fix SQWE override when setting an alarm

Browse Source 
Currently setting an alarm clears the SQWE bit which means that the
clock output is disabled no matter its previous state.

Signed-off-by: Gary Bisson <gary.bisson@boundarydevices.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
This commit is contained in:
Gary Bisson 2017-04-25 16:45:14 +02:00 committed by Alexandre Belloni
parent 8066360744
commit 2de9261c18
1 changed files with 3 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/rtc/rtc-m41t80.c
View File

@ -332,6 +332,9 @@ static int m41t80_set_alarm(struct device *dev, struct rtc_wkalrm *alrm)
return err;
}
/* Keep SQWE bit value */
alarmvals[0] |= (ret & M41T80_ALMON_SQWE);
ret = i2c_smbus_read_byte_data(client, M41T80_REG_FLAGS);
if (ret < 0)
return ret;