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authorRichard Leitner <richard.leitner@skidata.com>2019-05-23 13:54:49 +0200
committerAlexandre Belloni <alexandre.belloni@bootlin.com>2019-05-23 17:48:00 +0200
commitc0e12848be091e8410fb427f080f2e0149123443 (patch)
tree7159dde8627941b819fcb9c64c6aaf50ef53ad53 /drivers/rtc/rtc-s35390a.c
parenta86bd9044b33ae60571de2759b3803f530bccb68 (diff)
downloadlinux-c0e12848be091e8410fb427f080f2e0149123443.tar.bz2
rtc: s35390a: set uie_unsupported
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@skidata.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Diffstat (limited to 'drivers/rtc/rtc-s35390a.c')
-rw-r--r--drivers/rtc/rtc-s35390a.c6
1 files changed, 6 insertions, 0 deletions
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);