[PATCH v2] arm64: dts: qcom: Add PMIC thermal support for Agatti QRB2210-RB1 platform

[Raj Aryan]

Add ADC channels for msm, quiet and xo thermistors along with
their ADC thermal bridge nodes and thermal zones for PMIC
thermal mitigation.

Signed-off-by: Raj Aryan <raj.aryan@xxxxxxxxxxxxxxxx>
---
Changes in v2:
- Moved XO channel into pmic DTSI file. 
- Gave meaningful name to thermal zones.
- Updated the prerequisite/dependency.
- Link to v1: https://lore.kernel.org/r/20260824-pm4125-adc-thermal-v1-1-3b67ef2eccb2@xxxxxxxxxxxxxxxx
---
 arch/arm64/boot/dts/qcom/pm4125.dtsi     |  8 +++
 arch/arm64/boot/dts/qcom/qrb2210-rb1.dts | 83 ++++++++++++++++++++++++++++++++
 2 files changed, 91 insertions(+)

diff --git a/arch/arm64/boot/dts/qcom/pm4125.dtsi b/arch/arm64/boot/dts/qcom/pm4125.dtsi
index 77de9db8c119..bcf777e465b8 100644
--- a/arch/arm64/boot/dts/qcom/pm4125.dtsi
+++ b/arch/arm64/boot/dts/qcom/pm4125.dtsi
@@ -156,6 +156,14 @@ channel@4b {
 				qcom,pre-scaling = <1 1>;
 			};
 
+			channel@4c {
+				reg = <ADC5_XO_THERM_100K_PU>;
+				label = "xo_therm";
+				qcom,ratiometric;
+				qcom,hw-settle-time = <200>;
+				qcom,pre-scaling = <1 1>;
+			};
+
 			channel@83 {
 				reg = <ADC5_VPH_PWR>;
 				label = "vph_pwr";
diff --git a/arch/arm64/boot/dts/qcom/qrb2210-rb1.dts b/arch/arm64/boot/dts/qcom/qrb2210-rb1.dts
index bf6fb12ad990..17bc2b984c75 100644
--- a/arch/arm64/boot/dts/qcom/qrb2210-rb1.dts
+++ b/arch/arm64/boot/dts/qcom/qrb2210-rb1.dts
@@ -7,6 +7,7 @@
 
 #include <dt-bindings/gpio/gpio.h>
 #include <dt-bindings/leds/common.h>
+#include <dt-bindings/iio/qcom,spmi-vadc.h>
 #include "agatti.dtsi"
 #include "pm4125.dtsi"
 
@@ -33,6 +34,68 @@ clk40m: can-clk {
 		};
 	};
 
+	msm_therm_bridge: msm-therm-bridge {
+		compatible = "generic-adc-thermal";
+		io-channels = <&pm4125_adc ADC5_AMUX_THM3_100K_PU>;
+		io-channel-names = "sensor-channel";
+		#thermal-sensor-cells = <0>;
+	};
+
+	quiet_therm_bridge: quiet-therm-bridge {
+		compatible = "generic-adc-thermal";
+		io-channels = <&pm4125_adc ADC5_AMUX_THM2_100K_PU>;
+		io-channel-names = "sensor-channel";
+		#thermal-sensor-cells = <0>;
+	};
+
+	xo_therm_bridge: xo-therm-bridge {
+		compatible = "generic-adc-thermal";
+		io-channels = <&pm4125_adc ADC5_XO_THERM_100K_PU>;
+		io-channel-names = "sensor-channel";
+		#thermal-sensor-cells = <0>;
+	};
+
+	thermal-zones {
+		msm-thermal {
+			polling-delay-passive = <2000>;
+			thermal-sensors = <&msm_therm_bridge>;
+
+			trips {
+				active-config0 {
+					temperature = <80000>;
+					hysteresis = <2000>;
+					type = "hot";
+				};
+			};
+		};
+
+		quiet-thermal {
+			polling-delay-passive = <2000>;
+			thermal-sensors = <&quiet_therm_bridge>;
+
+			trips {
+				active-config0 {
+					temperature = <80000>;
+					hysteresis = <2000>;
+					type = "hot";
+				};
+			};
+		};
+
+		xo-thermal {
+			polling-delay-passive = <2000>;
+			thermal-sensors = <&xo_therm_bridge>;
+
+			trips {
+				active-config0 {
+					temperature = <80000>;
+					hysteresis = <2000>;
+					type = "hot";
+				};
+			};
+		};
+	};
+
 	gpio-keys {
 		compatible = "gpio-keys";
 		label = "gpio-keys";
@@ -333,6 +396,26 @@ vreg_l7p: ldo7 {
 	};
 };
 
+&pm4125_adc {
+	status = "okay";
+
+	channel@4e {
+		reg = <ADC5_AMUX_THM2_100K_PU>;
+		label = "quiet_therm";
+		qcom,ratiometric;
+		qcom,hw-settle-time = <200>;
+		qcom,pre-scaling = <1 1>;
+	};
+
+	channel@4f {
+		reg = <ADC5_AMUX_THM3_100K_PU>;
+		label = "msm_therm";
+		qcom,ratiometric;
+		qcom,hw-settle-time = <200>;
+		qcom,pre-scaling = <1 1>;
+	};
+};
+
 &i2c2_gpio {
 	clock-frequency = <400000>;
 	status = "okay";

---
base-commit: f1ac44c32cba88ad65dcecd4a279661d14e93651
change-id: 20260812-pm4125-adc-thermal-4c0f713737fa

Best regards,
-- 
Raj Aryan <raj.aryan@xxxxxxxxxxxxxxxx>