[PATCH] arm64: dts: qcom: sc7180-trogdor: Keep pm6150_adc enabled for TZ

[PATCH] arm64: dts: qcom: sc7180-trogdor: Keep pm6150_adc enabled for TZ

[Stephen Boyd]

There's still a thermal zone using pm6150_adc in the pm6150.dtsi file,
pm6150_thermal. It's not super obvious because it indirectly uses the
adc through an iio channel in pm6150_temp. Let's keep this enabled on
lazor and coachz so that reading the temperature of the pm6150_thermal
zone continues to work. Otherwise we get -EINVAL when reading the zone,
and I suspect the PMIC temperature trip doesn't work properly so we
don't shutdown when the PMIC overheats.

Cc: Matthias Kaehlcke <mka@chromium.org>
Fixes: b8d1e3d33487 ("arm64: dts: qcom: sc7180-trogdor: Delete ADC config for unused thermistors")
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
---
 arch/arm64/boot/dts/qcom/sc7180-trogdor-coachz-r1.dts | 2 --
 arch/arm64/boot/dts/qcom/sc7180-trogdor-lazor.dtsi    | 2 --
 2 files changed, 4 deletions(-)

diff --git a/arch/arm64/boot/dts/qcom/sc7180-trogdor-coachz-r1.dts b/arch/arm64/boot/dts/qcom/sc7180-trogdor-coachz-r1.dts
index 8290d036044a..edfcd47e1a00 100644
--- a/arch/arm64/boot/dts/qcom/sc7180-trogdor-coachz-r1.dts
+++ b/arch/arm64/boot/dts/qcom/sc7180-trogdor-coachz-r1.dts
@@ -24,8 +24,6 @@ &charger_thermal {
 };
 
 &pm6150_adc {
-	status = "disabled";
-
 	/delete-node/ skin-temp-thermistor@4e;
 	/delete-node/ charger-thermistor@4f;
 };
diff --git a/arch/arm64/boot/dts/qcom/sc7180-trogdor-lazor.dtsi b/arch/arm64/boot/dts/qcom/sc7180-trogdor-lazor.dtsi
index 2cf7d5212c61..002663d752da 100644
--- a/arch/arm64/boot/dts/qcom/sc7180-trogdor-lazor.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7180-trogdor-lazor.dtsi
@@ -55,8 +55,6 @@ &panel {
 };
 
 &pm6150_adc {
-	status = "disabled";
-
 	/delete-node/ charger-thermistor@4f;
 };
 

base-commit: 568035b01cfb107af8d2e4bd2fb9aea22cf5b868
-- 
https://chromeos.dev

Re: [PATCH] arm64: dts: qcom: sc7180-trogdor: Keep pm6150_adc enabled for TZ

[Matthias Kaehlcke]

On Fri, Aug 26, 2022 at 05:49:00PM -0700, Stephen Boyd wrote:
> There's still a thermal zone using pm6150_adc in the pm6150.dtsi file,
> pm6150_thermal. It's not super obvious because it indirectly uses the
> adc through an iio channel in pm6150_temp. Let's keep this enabled on
> lazor and coachz so that reading the temperature of the pm6150_thermal
> zone continues to work. Otherwise we get -EINVAL when reading the zone,
> and I suspect the PMIC temperature trip doesn't work properly so we
> don't shutdown when the PMIC overheats.
> 
> Cc: Matthias Kaehlcke <mka@chromium.org>
> Fixes: b8d1e3d33487 ("arm64: dts: qcom: sc7180-trogdor: Delete ADC config for unused thermistors")
> Signed-off-by: Stephen Boyd <swboyd@chromium.org>

Reviewed-by: Matthias Kaehlcke <mka@chromium.org>

Re: [PATCH] arm64: dts: qcom: sc7180-trogdor: Keep pm6150_adc enabled for TZ

[Bjorn Andersson]

On Fri, 26 Aug 2022 17:49:00 -0700, Stephen Boyd wrote:
> There's still a thermal zone using pm6150_adc in the pm6150.dtsi file,
> pm6150_thermal. It's not super obvious because it indirectly uses the
> adc through an iio channel in pm6150_temp. Let's keep this enabled on
> lazor and coachz so that reading the temperature of the pm6150_thermal
> zone continues to work. Otherwise we get -EINVAL when reading the zone,
> and I suspect the PMIC temperature trip doesn't work properly so we
> don't shutdown when the PMIC overheats.
> 
> [...]

Applied, thanks!

[1/1] arm64: dts: qcom: sc7180-trogdor: Keep pm6150_adc enabled for TZ
      commit: 144fbd028fdec2deeb3b99d5e60dbf3167950ebe

Best regards,
-- 
Bjorn Andersson <andersson@kernel.org>