From ca03b7a2c0b098321365f69538823d1bcc860552 Mon Sep 17 00:00:00 2001 From: Rasmus Villemoes Date: Wed, 21 Sep 2022 13:46:17 +0200 Subject: [PATCH] rtc: isl12022: specify range_min and range_max The isl12022 can (only) keep track of times in the range 2000-2099. The data sheet says The calendar registers track date, month, year, and day of the week and are accurate through 2099, with automatic leap year correction. The lower bound of 2000 is obtained by simply observing that its YR register only counts from 00 through 99. Signed-off-by: Rasmus Villemoes Link: https://lore.kernel.org/r/20220921114624.3250848-3-linux@rasmusvillemoes.dk Signed-off-by: Alexandre Belloni --- drivers/rtc/rtc-isl12022.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/rtc/rtc-isl12022.c b/drivers/rtc/rtc-isl12022.c index 2dc1906..3bc197f 100644 --- a/drivers/rtc/rtc-isl12022.c +++ b/drivers/rtc/rtc-isl12022.c @@ -251,6 +251,8 @@ static int isl12022_probe(struct i2c_client *client) return PTR_ERR(isl12022->rtc); isl12022->rtc->ops = &isl12022_rtc_ops; + isl12022->rtc->range_min = RTC_TIMESTAMP_BEGIN_2000; + isl12022->rtc->range_max = RTC_TIMESTAMP_END_2099; return devm_rtc_register_device(isl12022->rtc); } -- 2.7.4