rtc: ab-b5ze-s3: let the core handle the RTC range

The ab-b5ze-s3 RTC is storing the year in an 8bit bcd coded register so it
can handle dates from year 2000 to year 2099.

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

diff --git a/drivers/rtc/rtc-ab-b5ze-s3.c b/drivers/rtc/rtc-ab-b5ze-s3.c
index f486912..2233601 100644 (file)
--- a/drivers/rtc/rtc-ab-b5ze-s3.c
+++ b/drivers/rtc/rtc-ab-b5ze-s3.c
@@ -265,15 +265,6 @@ static int abb5zes3_rtc_set_time(struct device *dev, struct rtc_time *tm)
        u8 regs[ABB5ZES3_REG_RTC_SC + ABB5ZES3_RTC_SEC_LEN];
        int ret;
 
-       /*
-        * Year register is 8-bit wide and bcd-coded, i.e records values
-        * between 0 and 99. tm_year is an offset from 1900 and we are
-        * interested in the 2000-2099 range, so any value less than 100
-        * is invalid.
-        */
-       if (tm->tm_year < 100)
-               return -EINVAL;
-
        regs[ABB5ZES3_REG_RTC_SC] = bin2bcd(tm->tm_sec); /* MSB=0 clears OSC */
        regs[ABB5ZES3_REG_RTC_MN] = bin2bcd(tm->tm_min);
        regs[ABB5ZES3_REG_RTC_HR] = bin2bcd(tm->tm_hour); /* 24-hour format */
@@ -951,6 +942,8 @@ static int abb5zes3_probe(struct i2c_client *client,
        }
 
        data->rtc->ops = &rtc_ops;
+       data->rtc->range_min = RTC_TIMESTAMP_BEGIN_2000;
+       data->rtc->range_max = RTC_TIMESTAMP_END_2099;
 
        /* Enable battery low detection interrupt if battery not already low */
        if (!data->battery_low && data->irq) {