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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-18 17:40:19 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-18 17:40:19 +0000
commit9f0fc191371843c4fc000a226b0a26b6c059aacd (patch)
tree35f8be3ef04506ac891ad001e8c41e535ae8d01d /kernel/time/alarmtimer.c
parentReleasing progress-linux version 6.6.15-2~progress7.99u1. (diff)
downloadlinux-9f0fc191371843c4fc000a226b0a26b6c059aacd.tar.xz
linux-9f0fc191371843c4fc000a226b0a26b6c059aacd.zip
Merging upstream version 6.7.7.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'kernel/time/alarmtimer.c')
-rw-r--r--kernel/time/alarmtimer.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/kernel/time/alarmtimer.c b/kernel/time/alarmtimer.c
index 8d9f13d847..4657cb8e8b 100644
--- a/kernel/time/alarmtimer.c
+++ b/kernel/time/alarmtimer.c
@@ -290,6 +290,17 @@ static int alarmtimer_suspend(struct device *dev)
rtc_timer_cancel(rtc, &rtctimer);
rtc_read_time(rtc, &tm);
now = rtc_tm_to_ktime(tm);
+
+ /*
+ * If the RTC alarm timer only supports a limited time offset, set the
+ * alarm time to the maximum supported value.
+ * The system may wake up earlier (possibly much earlier) than expected
+ * when the alarmtimer runs. This is the best the kernel can do if
+ * the alarmtimer exceeds the time that the rtc device can be programmed
+ * for.
+ */
+ min = rtc_bound_alarmtime(rtc, min);
+
now = ktime_add(now, min);
/* Set alarm, if in the past reject suspend briefly to handle */