From bb451661db2462709674d156e8ca137fbfd3da6c Mon Sep 17 00:00:00 2001 From: Alexandre Belloni Date: Wed, 16 Oct 2019 22:12:23 +0200 Subject: [PATCH] rtc: fsl-ftm-alarm: avoid struct rtc_time conversions 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: Alexandre Belloni --- drivers/rtc/rtc-fsl-ftm-alarm.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) diff --git a/drivers/rtc/rtc-fsl-ftm-alarm.c b/drivers/rtc/rtc-fsl-ftm-alarm.c index 039bd2f1a7ee..9e6e994cce99 100644 --- a/drivers/rtc/rtc-fsl-ftm-alarm.c +++ b/drivers/rtc/rtc-fsl-ftm-alarm.c @@ -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;