rtc: ds1685: Add range

Useful range is 2000-2099 because leap year fails on centuries.

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

diff --git a/drivers/rtc/rtc-ds1685.c b/drivers/rtc/rtc-ds1685.c
index e639047..5c0db6c 100644 (file)
--- 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;