From cf4521ed7ba5b5b0c72f74f180b6e9557f130522 Mon Sep 17 00:00:00 2001 From: Alexandre Belloni Date: Wed, 9 Mar 2022 17:22:47 +0100 Subject: rtc: pcf8563: let the core handle the alarm resolution Set RTC_FEATURE_ALARM_RES_MINUTE, so the core knows alarms have a resolution of a minute. Also, the core will properly round down the alarm instead of up. Signed-off-by: Alexandre Belloni Link: https://lore.kernel.org/r/20220309162301.61679-16-alexandre.belloni@bootlin.com --- drivers/rtc/rtc-pcf8563.c | 14 +------------- 1 file changed, 1 insertion(+), 13 deletions(-) (limited to 'drivers/rtc') diff --git a/drivers/rtc/rtc-pcf8563.c b/drivers/rtc/rtc-pcf8563.c index c8bddfb94129..530f06c810fa 100644 --- a/drivers/rtc/rtc-pcf8563.c +++ b/drivers/rtc/rtc-pcf8563.c @@ -330,19 +330,6 @@ static int pcf8563_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *tm) unsigned char buf[4]; int err; - /* The alarm has no seconds, round up to nearest minute */ - if (tm->time.tm_sec) { - time64_t alarm_time = rtc_tm_to_time64(&tm->time); - - alarm_time += 60 - tm->time.tm_sec; - rtc_time64_to_tm(alarm_time, &tm->time); - } - - dev_dbg(dev, "%s, min=%d hour=%d wday=%d mday=%d " - "enabled=%d pending=%d\n", __func__, - tm->time.tm_min, tm->time.tm_hour, tm->time.tm_wday, - tm->time.tm_mday, tm->enabled, tm->pending); - buf[0] = bin2bcd(tm->time.tm_min); buf[1] = bin2bcd(tm->time.tm_hour); buf[2] = bin2bcd(tm->time.tm_mday); @@ -566,6 +553,7 @@ static int pcf8563_probe(struct i2c_client *client, pcf8563->rtc->ops = &pcf8563_rtc_ops; /* the pcf8563 alarm only supports a minute accuracy */ pcf8563->rtc->uie_unsupported = 1; + set_bit(RTC_FEATURE_ALARM_RES_MINUTE, pcf8563->rtc->features); pcf8563->rtc->range_min = RTC_TIMESTAMP_BEGIN_2000; pcf8563->rtc->range_max = RTC_TIMESTAMP_END_2099; pcf8563->rtc->set_start_time = true; -- cgit v1.2.3-59-g8ed1b