From: Ian Abbott abbotti@mev.co.uk
commit 4dfe05bdc1ade79b943d4979a2e2a8b5ef68fbb5 upstream.
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@vger.kernel.org # v5.5+ Signed-off-by: Ian Abbott abbotti@mev.co.uk Link: https://lore.kernel.org/r/20221027163249.447416-1-abbotti@mev.co.uk Signed-off-by: Alexandre Belloni alexandre.belloni@bootlin.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/rtc/rtc-ds1347.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/rtc/rtc-ds1347.c +++ b/drivers/rtc/rtc-ds1347.c @@ -112,7 +112,7 @@ static int ds1347_set_time(struct device 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;