linux-kernel - [PATCH 4/4] arm64: dts: qcom: sc7180: Disable charger thermal zone for coachz rev1 and rev2

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20210304100341.4.I95b8a63103b77cab6a7cf9c150f0541db57fda98@changeid>
Date:   Thu,  4 Mar 2021 10:04:15 -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:     Douglas Anderson <dianders@...omium.org>,
        devicetree@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        linux-kernel@...r.kernel.org, Matthias Kaehlcke <mka@...omium.org>
Subject: [PATCH 4/4] arm64: dts: qcom: sc7180: Disable charger thermal zone for coachz rev1 and rev2

CoachZ rev1 and rev2 are 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>
---

 arch/arm64/boot/dts/qcom/sc7180-trogdor-coachz-r1.dts | 9 +++++++++
 arch/arm64/boot/dts/qcom/sc7180-trogdor-coachz-r2.dts | 9 +++++++++
 2 files changed, 18 insertions(+)

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 86619f6c1134..c6b078e70d31 100644
--- a/arch/arm64/boot/dts/qcom/sc7180-trogdor-coachz-r1.dts
+++ b/arch/arm64/boot/dts/qcom/sc7180-trogdor-coachz-r1.dts
@@ -14,6 +14,15 @@ / {
 	compatible = "google,coachz-rev1", "qcom,sc7180";
 };
 
+/*
+ * CoachZ rev1 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";
+};
+
 &tlmm {
 	gpio-line-names = "HUB_RST_L",
 			  "AP_RAM_ID0",
diff --git a/arch/arm64/boot/dts/qcom/sc7180-trogdor-coachz-r2.dts b/arch/arm64/boot/dts/qcom/sc7180-trogdor-coachz-r2.dts
index 4f69b6ba299f..67c31795a566 100644
--- a/arch/arm64/boot/dts/qcom/sc7180-trogdor-coachz-r2.dts
+++ b/arch/arm64/boot/dts/qcom/sc7180-trogdor-coachz-r2.dts
@@ -13,3 +13,12 @@ / {
 	model = "Google CoachZ (rev2+)";
 	compatible = "google,coachz", "qcom,sc7180";
 };
+
+/*
+ * CoachZ rev2 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";
+};
-- 
2.30.1.766.gb4fecdf3b7-goog