rtc: rx8025: let the core handle the alarm resolution

Tell the RTC core UIE are not supported because the resolution of the alarm
is a minute.

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20211107225458.111068-8-alexandre.belloni@bootlin.com

diff --git a/drivers/rtc/rtc-rx8025.c b/drivers/rtc/rtc-rx8025.c
index 617b044c66f0a836330951d70cbbec751fa0e89d..6941e0518290230b758d104d773d2093ba694467 100644 (file)
--- a/drivers/rtc/rtc-rx8025.c
+++ b/drivers/rtc/rtc-rx8025.c
@@ -358,17 +358,6 @@ static int rx8025_set_alarm(struct device *dev, struct rtc_wkalrm *t)
        if (client->irq <= 0)
                return -EINVAL;
 
-       /*
-        * Hardware alarm precision is 1 minute!
-        * round up to nearest minute
-        */
-       if (t->time.tm_sec) {
-               time64_t alarm_time = rtc_tm_to_time64(&t->time);
-
-               alarm_time += 60 - t->time.tm_sec;
-               rtc_time64_to_tm(alarm_time, &t->time);
-       }
-
        ald[0] = bin2bcd(t->time.tm_min);
        if (rx8025->ctrl1 & RX8025_BIT_CTRL1_1224)
                ald[1] = bin2bcd(t->time.tm_hour);
@@ -579,8 +568,8 @@ static int rx8025_probe(struct i2c_client *client,
 
        rx8025->rtc->max_user_freq = 1;
 
-       /* the rx8025 alarm only supports a minute accuracy */
-       rx8025->rtc->uie_unsupported = 1;
+       set_bit(RTC_FEATURE_ALARM_RES_MINUTE, rx8025->rtc->features);
+       clear_bit(RTC_FEATURE_UPDATE_INTERRUPT, rx8025->rtc->features);
 
        err = devm_rtc_register_device(rx8025->rtc);
        if (err)