Alarms are only supported on a per minute basis. This is why uie_unsupported is set. Furthermore issue a warning when a second based alarm is requested. Signed-off-by: Richard Leitner <richard.leitner@xxxxxxxxxxx> --- drivers/rtc/rtc-s35390a.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/rtc/rtc-s35390a.c b/drivers/rtc/rtc-s35390a.c index fb795c454077..4ca37f281ed9 100644 --- a/drivers/rtc/rtc-s35390a.c +++ b/drivers/rtc/rtc-s35390a.c @@ -289,6 +289,9 @@ static int s35390a_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alm) alm->time.tm_min, alm->time.tm_hour, alm->time.tm_mday, alm->time.tm_mon, alm->time.tm_year, alm->time.tm_wday); + if (alm->time.tm_sec != 0) + dev_warn(&client->dev, "Alarms are only supported on a per minute basis!\n"); + /* disable interrupt (which deasserts the irq line) */ err = s35390a_set_reg(s35390a, S35390A_CMD_STATUS2, &sts, sizeof(sts)); if (err < 0) @@ -500,6 +503,9 @@ static int s35390a_probe(struct i2c_client *client, goto exit_dummy; } + /* supports per-minute alarms only, therefore set uie_unsupported */ + s35390a->rtc->uie_unsupported = 1; + if (status1 & S35390A_FLAG_INT2) rtc_update_irq(s35390a->rtc, 1, RTC_AF); -- 2.20.1
