linux-kernel - [PATCH v2 2/4] arm64: dts: qcom: sc7180: Disable charger thermal for lazor

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Date:   Thu, 25 Feb 2021 10:33:35 -0800
From:   Matthias Kaehlcke <mka@...omium.org>
To:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Rob Herring <robh+dt@...nel.org>
Cc:     devicetree@...r.kernel.org,
        Douglas Anderson <dianders@...omium.org>,
        linux-arm-msm@...r.kernel.org, Stephen Boyd <swboyd@...omium.org>,
        linux-kernel@...r.kernel.org, Matthias Kaehlcke <mka@...omium.org>
Subject: [PATCH v2 2/4] arm64: dts: qcom: sc7180: Disable charger thermal for lazor

Lazor is stuffed with a 47k NTC as thermistor for the charger
temperature which currently isn't supported by the PM6150 ADC
driver. Disable the charger thermal zone to avoid the use of
bogus temperature values.

Signed-off-by: Matthias Kaehlcke <mka@...omium.org>
---

Changes in v2:
- disable the thermal zone instead of deleting the zone and ADC nodes
- updated subject and commit message

 arch/arm64/boot/dts/qcom/sc7180-trogdor-lazor-r0.dts | 9 +++++++++
 arch/arm64/boot/dts/qcom/sc7180-trogdor-lazor-r1.dts | 9 +++++++++
 arch/arm64/boot/dts/qcom/sc7180-trogdor-lazor-r3.dts | 9 +++++++++
 3 files changed, 27 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/sc7180-trogdor-lazor-r0.dts b/arch/arm64/boot/dts/qcom/sc7180-trogdor-lazor-r0.dts
index 30e3e769d2b4..5c997cd90069 100644
--- a/arch/arm64/boot/dts/qcom/sc7180-trogdor-lazor-r0.dts
+++ b/arch/arm64/boot/dts/qcom/sc7180-trogdor-lazor-r0.dts
@@ -14,6 +14,15 @@ / {
 	compatible = "google,lazor-rev0", "qcom,sc7180";
 };
 
+/*
+ * Lazor is stuffed with a 47k NTC as charger thermistor which currently is
+ * not supported by the PM6150 ADC driver. Disable the charger thermal zone
+ * to avoid using bogus temperature values.
+ */
+&charger_thermal {
+	status = "disabled";
+};
+
 &pp3300_hub {
 	/* pp3300_l7c is used to power the USB hub */
 	/delete-property/regulator-always-on;
diff --git a/arch/arm64/boot/dts/qcom/sc7180-trogdor-lazor-r1.dts b/arch/arm64/boot/dts/qcom/sc7180-trogdor-lazor-r1.dts
index c2ef06367baf..d9fbcc7bc5bd 100644
--- a/arch/arm64/boot/dts/qcom/sc7180-trogdor-lazor-r1.dts
+++ b/arch/arm64/boot/dts/qcom/sc7180-trogdor-lazor-r1.dts
@@ -14,6 +14,15 @@ / {
 	compatible = "google,lazor-rev1", "google,lazor-rev2", "qcom,sc7180";
 };
 
+/*
+ * Lazor is stuffed with a 47k NTC as charger thermistor which currently is
+ * not supported by the PM6150 ADC driver. Disable the charger thermal zone
+ * to avoid using bogus temperature values.
+ */
+&charger_thermal {
+	status = "disabled";
+};
+
 &pp3300_hub {
 	/* pp3300_l7c is used to power the USB hub */
 	/delete-property/regulator-always-on;
diff --git a/arch/arm64/boot/dts/qcom/sc7180-trogdor-lazor-r3.dts b/arch/arm64/boot/dts/qcom/sc7180-trogdor-lazor-r3.dts
index 1b9d2f46359e..19e69adb9e04 100644
--- a/arch/arm64/boot/dts/qcom/sc7180-trogdor-lazor-r3.dts
+++ b/arch/arm64/boot/dts/qcom/sc7180-trogdor-lazor-r3.dts
@@ -13,3 +13,12 @@ / {
 	model = "Google Lazor (rev3+)";
 	compatible = "google,lazor", "qcom,sc7180";
 };
+
+/*
+ * Lazor is stuffed with a 47k NTC as charger thermistor which currently is
+ * not supported by the PM6150 ADC driver. Disable the charger thermal zone
+ * to avoid using bogus temperature values.
+ */
+&charger_thermal {
+	status = "disabled";
+};
-- 
2.30.0.617.g56c4b15f3c-goog