This is a note to let you know that I've just added the patch titled
thermal/drivers/qcom/spmi-adc-tm5: Don't abort probing if a sensor is not used
to the 5.14-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:
thermal-drivers-qcom-spmi-adc-tm5-don-t-abort-probing-if-a-sensor-is-not-used.patch
and it can be found in the queue-5.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 70ee251ded6ba24c15537f4abb8a318e233d0d1a Mon Sep 17 00:00:00 2001
From: Matthias Kaehlcke <mka@xxxxxxxxxxxx>
Date: Mon, 23 Aug 2021 13:47:30 -0700
Subject: thermal/drivers/qcom/spmi-adc-tm5: Don't abort probing if a sensor is not used
From: Matthias Kaehlcke <mka@xxxxxxxxxxxx>
commit 70ee251ded6ba24c15537f4abb8a318e233d0d1a upstream.
adc_tm5_register_tzd() registers the thermal zone sensors for all
channels of the thermal monitor. If the registration of one channel
fails the function skips the processing of the remaining channels
and returns an error, which results in _probe() being aborted.
One of the reasons the registration could fail is that none of the
thermal zones is using the channel/sensor, which hardly is a critical
error (if it is an error at all). If this case is detected emit a
warning and continue with processing the remaining channels.
Fixes: ca66dca5eda6 ("thermal: qcom: add support for adc-tm5 PMIC thermal monitor")
Signed-off-by: Matthias Kaehlcke <mka@xxxxxxxxxxxx>
Reported-by: Stephen Boyd <swboyd@xxxxxxxxxxxx>
Reviewed-by: Stephen Boyd <swboyd@xxxxxxxxxxxx>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
Signed-off-by: Daniel Lezcano <daniel.lezcano@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20210823134726.1.I1dd23ddf77e5b3568625d80d6827653af071ce19@changeid
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/thermal/qcom/qcom-spmi-adc-tm5.c | 6 ++++++
1 file changed, 6 insertions(+)
--- a/drivers/thermal/qcom/qcom-spmi-adc-tm5.c
+++ b/drivers/thermal/qcom/qcom-spmi-adc-tm5.c
@@ -359,6 +359,12 @@ static int adc_tm5_register_tzd(struct a
&adc_tm->channels[i],
&adc_tm5_ops);
if (IS_ERR(tzd)) {
+ if (PTR_ERR(tzd) == -ENODEV) {
+ dev_warn(adc_tm->dev, "thermal sensor on channel %d is not used\n",
+ adc_tm->channels[i].channel);
+ continue;
+ }
+
dev_err(adc_tm->dev, "Error registering TZ zone for channel %d: %ld\n",
adc_tm->channels[i].channel, PTR_ERR(tzd));
return PTR_ERR(tzd);
Patches currently in stable-queue which might be from mka@xxxxxxxxxxxx are
queue-5.14/thermal-drivers-qcom-spmi-adc-tm5-don-t-abort-probing-if-a-sensor-is-not-used.patch
