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| author | Maxime Chevallier <maxime.chevallier@bootlin.com> | 2024-11-22 11:10:30 +0100 |
|---|---|---|
| committer | Alexandre Belloni <alexandre.belloni@bootlin.com> | 2024-11-25 23:34:12 +0100 |
| commit | e0779a0dcf41a6452ac0a169cd96863feb5787c7 (patch) | |
| tree | f81eb70de6dad13382a2babcfcb038933a70a29a /drivers/rtc | |
| parent | rtc: rzn1: reduce register access (diff) | |
| download | linux-e0779a0dcf41a6452ac0a169cd96863feb5787c7.tar.xz linux-e0779a0dcf41a6452ac0a169cd96863feb5787c7.zip | |
rtc: ab-eoz9: don't fail temperature reads on undervoltage notification
The undervoltage flags reported by the RTC are useful to know if the
time and date are reliable after a reboot. Although the threshold VLOW1
indicates that the thermometer has been shutdown and time compensation
is off, it doesn't mean that the temperature readout is currently
impossible.
As the system is running, the RTC voltage is now fully established and
we can read the temperature.
Fixes: 67075b63cce2 ("rtc: add AB-RTCMC-32.768kHz-EOZ9 RTC support")
Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Link: https://lore.kernel.org/r/20241122101031.68916-3-maxime.chevallier@bootlin.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Diffstat (limited to 'drivers/rtc')
| -rw-r--r-- | drivers/rtc/rtc-ab-eoz9.c | 7 |
1 files changed, 0 insertions, 7 deletions
diff --git a/drivers/rtc/rtc-ab-eoz9.c b/drivers/rtc/rtc-ab-eoz9.c index 84c5f77808c5..d2b60487d462 100644 --- a/drivers/rtc/rtc-ab-eoz9.c +++ b/drivers/rtc/rtc-ab-eoz9.c @@ -394,13 +394,6 @@ static int abeoz9z3_temp_read(struct device *dev, if (ret < 0) return ret; - if ((val & ABEOZ9_REG_CTRL_STATUS_V1F) || - (val & ABEOZ9_REG_CTRL_STATUS_V2F)) { - dev_err(dev, - "thermometer might be disabled due to low voltage\n"); - return -EINVAL; - } - switch (attr) { case hwmon_temp_input: ret = regmap_read(regmap, ABEOZ9_REG_REG_TEMP, &val); |