rtc: rx8581: let the core handle rtc range

Let the core handle offsetting and windowing the RTC range.

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

1 files changed, 4 insertions, 5 deletions

diff --git a/drivers/rtc/rtc-rx8581.c b/drivers/rtc/rtc-rx8581.c
index c5ffd30ca672..171ee241bd2f 100644
--- a/drivers/rtc/rtc-rx8581.c
+++ b/drivers/rtc/rtc-rx8581.c
@@ -153,10 +153,7 @@ static int rx8581_get_datetime(struct i2c_client *client, struct rtc_time *tm)
         tm->tm_wday = ilog2(date[RX8581_REG_DW] & 0x7F);
         tm->tm_mday = bcd2bin(date[RX8581_REG_DM] & 0x3F);
         tm->tm_mon = bcd2bin(date[RX8581_REG_MO] & 0x1F) - 1; /* rtc mn 1-12 */
-        tm->tm_year = bcd2bin(date[RX8581_REG_YR]);
-        if (tm->tm_year < 70)
-                tm->tm_year += 100;     /* assume we are in 1970...2069 */
-
+        tm->tm_year = bcd2bin(date[RX8581_REG_YR]) + 100;
 
         dev_dbg(&client->dev, "%s: tm is secs=%d, mins=%d, hours=%d, "
                 "mday=%d, mon=%d, year=%d, wday=%d\n",
@@ -190,7 +187,7 @@ static int rx8581_set_datetime(struct i2c_client *client, struct rtc_time *tm)
         buf[RX8581_REG_MO] = bin2bcd(tm->tm_mon + 1);
 
         /* year and century */
-        buf[RX8581_REG_YR] = bin2bcd(tm->tm_year % 100);
+        buf[RX8581_REG_YR] = bin2bcd(tm->tm_year - 100);
         buf[RX8581_REG_DW] = (0x1 << tm->tm_wday);
 
         /* Stop the clock */
@@ -293,6 +290,8 @@ static int rx8581_probe(struct i2c_client *client,
         rx8581->rtc->ops = &rx8581_rtc_ops;
         rx8581->rtc->range_min = RTC_TIMESTAMP_BEGIN_2000;
         rx8581->rtc->range_max = RTC_TIMESTAMP_END_2099;
+        rx8581->rtc->start_secs = 0;
+        rx8581->rtc->set_start_time = true;
 
         return rtc_register_device(rx8581->rtc);
 }