This is a note to let you know that I've just added the patch titled rtc: ds1347: fix value written to century register to the 5.10-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: rtc-ds1347-fix-value-written-to-century-register.patch and it can be found in the queue-5.10 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From 4dfe05bdc1ade79b943d4979a2e2a8b5ef68fbb5 Mon Sep 17 00:00:00 2001 From: Ian Abbott <abbotti@xxxxxxxxx> Date: Thu, 27 Oct 2022 17:32:49 +0100 Subject: rtc: ds1347: fix value written to century register From: Ian Abbott <abbotti@xxxxxxxxx> 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@xxxxxxxxxxxxxxx> # v5.5+ Signed-off-by: Ian Abbott <abbotti@xxxxxxxxx> Link: https://lore.kernel.org/r/20221027163249.447416-1-abbotti@xxxxxxxxx Signed-off-by: Alexandre Belloni <alexandre.belloni@xxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- 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; Patches currently in stable-queue which might be from abbotti@xxxxxxxxx are queue-5.10/rtc-ds1347-fix-value-written-to-century-register.patch