From ded656a67ba50ad255bd64244071457787b3e7ab Mon Sep 17 00:00:00 2001
From: Gunar Schorcht <gunar@schorcht.net>
Date: Sun, 12 Jun 2022 15:57:04 +0200
Subject: [PATCH] drivers/rtt_rtc: normalize tm struct in rtc_set_alarm

---
 drivers/rtt_rtc/rtt_rtc.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/rtt_rtc/rtt_rtc.c b/drivers/rtt_rtc/rtt_rtc.c
index 0de3fe296c..2e3bed2dc3 100644
--- a/drivers/rtt_rtc/rtt_rtc.c
+++ b/drivers/rtt_rtc/rtt_rtc.c
@@ -182,6 +182,8 @@ int rtc_set_alarm(struct tm *time, rtc_alarm_cb_t cb, void *arg)
 
     uint32_t now = rtt_get_counter();
 
+    rtc_tm_normalize(time);
+
     alarm_time   = rtc_mktime(time);
     alarm_cb_arg = arg;
     alarm_cb     = cb;