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rtc: ds1347: fix value written to century register
author
Ian Abbott
<abbotti@mev.co.uk>
Thu, 27 Oct 2022 16:32:49 +0000
(17:32 +0100)
committer
Greg Kroah-Hartman
<gregkh@linuxfoundation.org>
Sat, 7 Jan 2023 10:11:50 +0000
(11:11 +0100)
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
patch
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diff --git
a/drivers/rtc/rtc-ds1347.c
b/drivers/rtc/rtc-ds1347.c
index
157bf52
..
a40c1a5
100644
(file)
--- 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;