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authorIngo Molnar <mingo@kernel.org>2024-02-14 10:45:07 +0100
committerIngo Molnar <mingo@kernel.org>2024-02-14 10:45:07 +0100
commit03c11eb3b16dc0058589751dfd91f254be2be613 (patch)
treee5f2889212fec0bb0babdce9abd781ab487e246a /include/linux/rtc.h
parentde8c6a352131f642b82474abe0cbb5dd26a7e081 (diff)
parent841c35169323cd833294798e58b9bf63fa4fa1de (diff)
downloadlinux-03c11eb3b16dc0058589751dfd91f254be2be613.tar.gz
linux-03c11eb3b16dc0058589751dfd91f254be2be613.zip
Merge tag 'v6.8-rc4' into x86/percpu, to resolve conflicts and refresh the branch
Conflicts: arch/x86/include/asm/percpu.h arch/x86/include/asm/text-patching.h Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'include/linux/rtc.h')
-rw-r--r--include/linux/rtc.h18
1 files changed, 18 insertions, 0 deletions
diff --git a/include/linux/rtc.h b/include/linux/rtc.h
index 1fd9c6a21ebe..5f8e438a0312 100644
--- a/include/linux/rtc.h
+++ b/include/linux/rtc.h
@@ -146,6 +146,7 @@ struct rtc_device {
time64_t range_min;
timeu64_t range_max;
+ timeu64_t alarm_offset_max;
time64_t start_secs;
time64_t offset_secs;
bool set_start_time;
@@ -224,6 +225,23 @@ static inline bool is_leap_year(unsigned int year)
return (!(year % 4) && (year % 100)) || !(year % 400);
}
+/**
+ * rtc_bound_alarmtime() - Return alarm time bound by rtc limit
+ * @rtc: Pointer to rtc device structure
+ * @requested: Requested alarm timeout
+ *
+ * Return: Alarm timeout bound by maximum alarm time supported by rtc.
+ */
+static inline ktime_t rtc_bound_alarmtime(struct rtc_device *rtc,
+ ktime_t requested)
+{
+ if (rtc->alarm_offset_max &&
+ rtc->alarm_offset_max * MSEC_PER_SEC < ktime_to_ms(requested))
+ return ms_to_ktime(rtc->alarm_offset_max * MSEC_PER_SEC);
+
+ return requested;
+}
+
#define devm_rtc_register_device(device) \
__devm_rtc_register_device(THIS_MODULE, device)