diff options
| author | Guy Shapiro <guy.shapiro@mobi-wize.com> | 2017-01-29 11:57:19 +0200 |
|---|---|---|
| committer | Leonard Crestez <leonard.crestez@nxp.com> | 2018-08-24 12:41:33 +0300 |
| commit | 26047137328772f79b4cc127d934e7ac1cac07f5 (patch) | |
| tree | b6d9f7c0a1e2cef1db74a9489ca7de6d6ad1fe70 /drivers/rtc | |
| parent | 65adbeb7dfc67a785fa1ec828c115d1b36d4dce2 (diff) | |
MLK-13798: rtc: snvs: add a missing write sync
The clear of the LPTA_EN flag should be synced before writing to the
alarm register. Omitting this synchronization creates a race when
trying to change existing alarm.
(cherry picked from commit 7bb633b1a9812a6b9f3e49d0cf17f60a633914e5)
Signed-off-by: Guy Shapiro <guy.shapiro@mobi-wize.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Tested-by: Leonard Crestez <leonard.crestez@nxp.com>
Reviewed-by: Octavian Purdila <octavian.purdila@nxp.com>
Diffstat (limited to 'drivers/rtc')
| -rw-r--r-- | drivers/rtc/rtc-snvs.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/rtc/rtc-snvs.c b/drivers/rtc/rtc-snvs.c index 31effe234b3d..536d71c4c6f8 100644 --- a/drivers/rtc/rtc-snvs.c +++ b/drivers/rtc/rtc-snvs.c @@ -196,6 +196,7 @@ static int snvs_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm) rtc_tm_to_time(alrm_tm, &time); regmap_update_bits(data->regmap, data->offset + SNVS_LPCR, SNVS_LPCR_LPTA_EN, 0); + rtc_write_sync_lp(data); regmap_write(data->regmap, data->offset + SNVS_LPTAR, time); /* Clear alarm interrupt status bit */ |