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authorAlexandre Belloni <alexandre.belloni@bootlin.com>2019-10-16 22:12:23 +0200
committerAlexandre Belloni <alexandre.belloni@bootlin.com>2019-11-08 16:14:09 +0100
commitbb451661db2462709674d156e8ca137fbfd3da6c (patch)
treed4d0d46376de833dd3cc094dac8d4d9af94d9d3e /drivers/rtc
parentrtc: fsl-ftm-alarm: switch to rtc_time64_to_tm/rtc_tm_to_time64 (diff)
downloadlinux-bb451661db2462709674d156e8ca137fbfd3da6c.tar.xz
linux-bb451661db2462709674d156e8ca137fbfd3da6c.zip
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 <alexandre.belloni@bootlin.com>
Diffstat (limited to 'drivers/rtc')
-rw-r--r--drivers/rtc/rtc-fsl-ftm-alarm.c7
1 files 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;