Useful range is 2000-2099 because leap year fails on centuries. Signed-off-by: Alexandre Belloni <alexandre.belloni@xxxxxxxxxxx> --- drivers/rtc/rtc-ds1685.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/rtc/rtc-ds1685.c b/drivers/rtc/rtc-ds1685.c index e6390475380f..5c0db6c8134c 100644 --- a/drivers/rtc/rtc-ds1685.c +++ b/drivers/rtc/rtc-ds1685.c @@ -2043,6 +2043,10 @@ ds1685_rtc_probe(struct platform_device *pdev) rtc_dev->ops = &ds1685_rtc_ops; + /* Century bit is useless because leap year fails in 1900 and 2100 */ + rtc_dev->range_min = RTC_TIMESTAMP_BEGIN_2000; + rtc_dev->range_max = RTC_TIMESTAMP_END_2099; + /* Maximum periodic rate is 8192Hz (0.122070ms). */ rtc_dev->max_user_freq = RTC_MAX_USER_FREQ; -- 2.17.0
