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rtc: pm8xxx: Return -ENODEV if set_time disallowed

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Having !allow_set_time is equivalent to non-implemented set_time
function, which is normally represented with -ENODEV error in RTC
subsystem.

Today we are returning -EACCES error code, which is not considered
by RTC clients as a 'non implemented' feature, and which causes NTP
to retry hw clk sync (update_rtc) indefinitely.

Signed-off-by: Loic Poulain <loic.poulain@linaro.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/1645090578-20734-1-git-send-email-loic.poulain@linaro.org
This commit is contained in:
Loic Poulain 2022-02-17 10:36:18 +01:00 committed by Alexandre Belloni
parent b5bf5b283d
commit 870c54e1a3
1 changed files with 1 additions and 1 deletions
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2
drivers/rtc/rtc-pm8xxx.c
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@ -84,7 +84,7 @@ static int pm8xxx_rtc_set_time(struct device *dev, struct rtc_time *tm)
const struct pm8xxx_rtc_regs *regs = rtc_dd->regs;
if (!rtc_dd->allow_set_time)
return -EACCES;
return -ENODEV;
secs = rtc_tm_to_time64(tm);