rtc: r9701: set range

Set range and remove the set_time check. This is a classic BCD RTC.

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/20201015191135.471249-6-alexandre.belloni@bootlin.com

diff --git a/drivers/rtc/rtc-r9701.c b/drivers/rtc/rtc-r9701.c
index 9165c18..7ceb968 100644 (file)
--- a/drivers/rtc/rtc-r9701.c
+++ b/drivers/rtc/rtc-r9701.c
@@ -88,11 +88,7 @@ static int r9701_get_datetime(struct device *dev, struct rtc_time *dt)
 
 static int r9701_set_datetime(struct device *dev, struct rtc_time *dt)
 {
-       int ret, year;
-
-       year = dt->tm_year + 1900;
-       if (year >= 2100 || year < 2000)
-               return -EINVAL;
+       int ret;
 
        ret = write_reg(dev, RHRCNT, bin2bcd(dt->tm_hour));
        ret = ret ? ret : write_reg(dev, RMINCNT, bin2bcd(dt->tm_min));
@@ -128,6 +124,8 @@ static int r9701_probe(struct spi_device *spi)
 
        spi_set_drvdata(spi, rtc);
        rtc->ops = &r9701_rtc_ops;
+       rtc->range_min = RTC_TIMESTAMP_BEGIN_2000;
+       rtc->range_max = RTC_TIMESTAMP_END_2099;
 
        return rtc_register_device(rtc);
 }