Messages in this thread | | | Date | Mon, 8 Nov 2021 12:16:59 +0900 | From | Dominique Martinet <> | Subject | Re: [PATCH 1/2] rtc-rv8803: fix writing back ctrl in flag register |
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Hi Alexandre, Alessandro,
the other patch was proved to be unneeded, but this one is still a valid fix as far as I can understand the code (reusing RV8803_CTRL value to write into RV8803_FLAG does not look correct)
(I'm also convinced either mostly work because the original values are usually close enough, but that's not a reason to keep using the wrong one)
Would you have time to take a look?
Thanks!
Dominique Martinet wrote on Mon, Nov 01, 2021 at 10:33:59AM +0900: > ctrl is set from read_regs(..FLAG, 2, ctrl), so ctrl[0] is FLAG > and ctrl[1] is the CTRL register. > Use ctrl[0] to write back to the FLAG register as appropriate. > > Signed-off-by: Dominique Martinet <dominique.martinet@atmark-techno.com> > --- > drivers/rtc/rtc-rv8803.c | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > > diff --git a/drivers/rtc/rtc-rv8803.c b/drivers/rtc/rtc-rv8803.c > index 72adef5a5ebe..0d5ed38bf60c 100644 > --- a/drivers/rtc/rtc-rv8803.c > +++ b/drivers/rtc/rtc-rv8803.c > @@ -340,8 +340,8 @@ static int rv8803_set_alarm(struct device *dev, struct rtc_wkalrm *alrm) > } > } > > - ctrl[1] &= ~RV8803_FLAG_AF; > - err = rv8803_write_reg(rv8803->client, RV8803_FLAG, ctrl[1]); > + ctrl[0] &= ~RV8803_FLAG_AF; > + err = rv8803_write_reg(rv8803->client, RV8803_FLAG, ctrl[0]); > mutex_unlock(&rv8803->flags_lock); > if (err) > return err;
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