* [PATCH 2/2] arm64: dts: qcom: monaco-pmics: Enable PMIC MBG thermal monitor
@ 2026-08-14 9:51 Sachin Gupta
0 siblings, 0 replies; only message in thread
From: Sachin Gupta @ 2026-08-14 9:51 UTC (permalink / raw)
To: Bjorn Andersson, Konrad Dybcio, Rob Herring, Krzysztof Kozlowski,
Conor Dooley
Cc: Ajit Pandey, Imran Shaik, Taniya Das, Jagadeesh Kona,
Jishnu Prakash, Kamal Wadhwa, linux-arm-msm, devicetree,
linux-kernel, Sachin Gupta
Monaco boards use PM8620AU PMIC instances that expose MBG thermal monitor
blocks handled by the existing qcom-spmi-mbg-tm driver.
Add MBG temperature-sensor nodes for the PMIC instances and wire them into
dedicated thermal zones with passive trips, so PMIC die temperature
monitoring is available through the thermal framework.
Signed-off-by: Sachin Gupta <sachin.gupta@oss.qualcomm.com>
---
arch/arm64/boot/dts/qcom/monaco-pmics.dtsi | 62 ++++++++++++++++++++++++++++++
1 file changed, 62 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/monaco-pmics.dtsi b/arch/arm64/boot/dts/qcom/monaco-pmics.dtsi
index 6e096b9b7546..361f5163b6d9 100644
--- a/arch/arm64/boot/dts/qcom/monaco-pmics.dtsi
+++ b/arch/arm64/boot/dts/qcom/monaco-pmics.dtsi
@@ -7,6 +7,36 @@
#include <dt-bindings/spmi/spmi.h>
#include "qcom-adc5-gen3.h"
+/ {
+ thermal-zones {
+ pm8775-mbg0-thermal {
+ polling-delay-passive = <100>;
+ thermal-sensors = <&pmm8620au_0_mbg_temp>;
+
+ trips {
+ trip0 {
+ temperature = <115000>;
+ hysteresis = <5000>;
+ type = "passive";
+ };
+ };
+ };
+
+ pm8775-mbg1-thermal {
+ polling-delay-passive = <100>;
+ thermal-sensors = <&pmm8620au_1_mbg_temp>;
+
+ trips {
+ trip0 {
+ temperature = <115000>;
+ hysteresis = <5000>;
+ type = "passive";
+ };
+ };
+ };
+ };
+};
+
&spmi_bus {
pmm8620au_0: pmic@0 {
compatible = "qcom,pmm8654au", "qcom,spmi-pmic";
@@ -53,6 +83,22 @@ pmm8620au_0_gpios: gpio@8800 {
};
};
+ pmm8620au_sail_0: pmic@1 {
+ compatible = "qcom,pmm8654au", "qcom,spmi-pmic";
+ reg = <0x1 SPMI_USID>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ pmm8620au_0_mbg_temp: temperature-sensor@d700 {
+ compatible = "qcom,pm8775-mbg-tm";
+ reg = <0xd700>;
+ io-channels = <&pmm8620au_0_adc ADC5_GEN3_DIE_TEMP(0)>;
+ io-channel-names = "thermal";
+ interrupts-extended = <&spmi_bus 0x1 0xd7 0x0 IRQ_TYPE_EDGE_RISING>;
+ #thermal-sensor-cells = <0>;
+ };
+ };
+
pmm8650au_1: pmic@2 {
compatible = "qcom,pmm8654au", "qcom,spmi-pmic";
reg = <0x2 SPMI_USID>;
@@ -90,4 +136,20 @@ pmm8650au_1_gpios: gpio@8800 {
#interrupt-cells = <2>;
};
};
+
+ pmm8620au_sail_1: pmic@3 {
+ compatible = "qcom,pmm8654au", "qcom,spmi-pmic";
+ reg = <0x3 SPMI_USID>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ pmm8620au_1_mbg_temp: temperature-sensor@d700 {
+ compatible = "qcom,pm8775-mbg-tm";
+ reg = <0xd700>;
+ io-channels = <&pmm8650au_1_adc ADC5_GEN3_DIE_TEMP(2)>;
+ io-channel-names = "thermal";
+ interrupts-extended = <&spmi_bus 0x3 0xd7 0x0 IRQ_TYPE_EDGE_RISING>;
+ #thermal-sensor-cells = <0>;
+ };
+ };
};
--
2.34.1
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