rtc: fsl-ftm-alarm: avoid struct rtc_time conversions (bb451661) · Commits · 戴 / test

Directly call ktime_get_real_seconds instead of converting the result to a struct rtc_time and then back to a time64_t. Link: https://lore.kernel.org/r/20191016201223.30568-4-alexandre.belloni@bootlin.com Signed-off-by:

drivers/rtc/rtc-fsl-ftm-alarm.c

+2 −5

Original line number	Diff line number	Diff line
		@@ -203,17 +203,14 @@ static int ftm_rtc_read_alarm(struct device dev, struct rtc_wkalrm alm)
		*/
		static int ftm_rtc_set_alarm(struct device dev, struct rtc_wkalrm alm)
		{
		struct rtc_time tm;
		time64_t now, alm_time;
		time64_t alm_time;
		unsigned long long cycle;
		struct ftm_rtc *rtc = dev_get_drvdata(dev);

		ftm_rtc_read_time(dev, &tm);
		now = rtc_tm_to_time64(&tm);
		alm_time = rtc_tm_to_time64(&alm->time);

		ftm_clean_alarm(rtc);
		cycle = (alm_time - now) * rtc->alarm_freq;
		cycle = (alm_time - ktime_get_real_seconds()) * rtc->alarm_freq;
		if (cycle > MAX_COUNT_VAL) {
		pr_err("Out of alarm range {0~262} seconds.\n");
		return -ERANGE;