[PATCH] rtc: ds1347: fix value written to century register

[Ian Abbott <abbotti@xxxxxxxxx>]

In `ds1347_set_time()`, the wrong value is being written to the
`DS1347_CENTURY_REG` register.  It needs to be converted to BCD.  Fix
it.

Fixes: 147dae76dbb9 ("rtc: ds1347: handle century register")
Cc: <stable@xxxxxxxxxxxxxxx> # v5.5+
Signed-off-by: Ian Abbott <abbotti@xxxxxxxxx>
---
 drivers/rtc/rtc-ds1347.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/rtc/rtc-ds1347.c b/drivers/rtc/rtc-ds1347.c
index 157bf5209ac4..a40c1a52df65 100644
--- a/drivers/rtc/rtc-ds1347.c
+++ b/drivers/rtc/rtc-ds1347.c
@@ -112,7 +112,7 @@ static int ds1347_set_time(struct device *dev, struct rtc_time *dt)
 		return err;
 
 	century = (dt->tm_year / 100) + 19;
-	err = regmap_write(map, DS1347_CENTURY_REG, century);
+	err = regmap_write(map, DS1347_CENTURY_REG, bin2bcd(century));
 	if (err)
 		return err;
 
-- 
2.35.1