rtc: Add RTC range
Add a way for drivers to inform the core of the supported date/time range.
The core can then check whether the date/time or alarm is in the range
before calling ->set_time, ->set_mmss or ->set_alarm. It returns -ERANGE
when the time is out of range.
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
diff --git a/include/linux/rtc.h b/include/linux/rtc.h
index 3b65b20..c78528c 100644
--- a/include/linux/rtc.h
+++ b/include/linux/rtc.h
@@ -150,6 +150,9 @@
bool nvram_old_abi;
struct bin_attribute *nvram;
+ time64_t range_min;
+ timeu64_t range_max;
+
#ifdef CONFIG_RTC_INTF_DEV_UIE_EMUL
struct work_struct uie_task;
struct timer_list uie_timer;