From 4712dbd5fabdd5909b8b3367dfafd61f502b3bb7 Mon Sep 17 00:00:00 2001
From: Rudraksha Gupta <guptarud@gmail.com>
Date: Thu, 27 Feb 2025 17:16:55 -0800
Subject: [PATCH] ARM: dts: qcom: msm8960: Add thermal sensor (tsens)

Add support for the thermal sensor (tsens) on the MSM8960 by copying and
modifying the relevant nodes from the APQ8064 dtsi. These changes enable
thermal management.

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Rudraksha Gupta <guptarud@gmail.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250227-expressatt-tsens-v4-2-d70afa5a1fd0@gmail.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
---
 arch/arm/boot/dts/qcom/qcom-msm8960.dtsi | 71 +++++++++++++++++++++++-
 1 file changed, 70 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/qcom/qcom-msm8960.dtsi b/arch/arm/boot/dts/qcom/qcom-msm8960.dtsi
index 1a98a4a9a5861..b476ad8951194 100644
--- a/arch/arm/boot/dts/qcom/qcom-msm8960.dtsi
+++ b/arch/arm/boot/dts/qcom/qcom-msm8960.dtsi
@@ -52,6 +52,48 @@
 		reg = <0x80000000 0>;
 	};
 
+	thermal-zones {
+		cpu0-thermal {
+			polling-delay-passive = <250>;
+			polling-delay = <1000>;
+			thermal-sensors = <&tsens 0>;
+
+			trips {
+				cpu_alert0: trip0 {
+					temperature = <60000>;
+					hysteresis = <10000>;
+					type = "passive";
+				};
+
+				cpu_crit0: trip1 {
+					temperature = <95000>;
+					hysteresis = <10000>;
+					type = "critical";
+				};
+			};
+		};
+
+		cpu1-thermal {
+			polling-delay-passive = <250>;
+			polling-delay = <1000>;
+			thermal-sensors = <&tsens 1>;
+
+			trips {
+				cpu_alert1: trip0 {
+					temperature = <60000>;
+					hysteresis = <10000>;
+					type = "passive";
+				};
+
+				cpu_crit1: trip1 {
+					temperature = <95000>;
+					hysteresis = <10000>;
+					type = "critical";
+				};
+			};
+		};
+	};
+
 	cpu-pmu {
 		compatible = "qcom,krait-pmu";
 		interrupts = <GIC_PPI 10 0x304>;
@@ -115,6 +157,21 @@
 			cpu-offset = <0x80000>;
 		};
 
+		qfprom: efuse@700000 {
+			compatible = "qcom,msm8960-qfprom", "qcom,qfprom";
+			reg = <0x00700000 0x1000>;
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			tsens_calib: calib@404 {
+				reg = <0x404 0x10>;
+			};
+
+			tsens_backup: backup-calib@414 {
+				reg = <0x414 0x10>;
+			};
+		};
+
 		msmgpio: pinctrl@800000 {
 			compatible = "qcom,msm8960-pinctrl";
 			gpio-controller;
@@ -127,7 +184,7 @@
 		};
 
 		gcc: clock-controller@900000 {
-			compatible = "qcom,gcc-msm8960";
+			compatible = "qcom,gcc-msm8960", "syscon";
 			#clock-cells = <1>;
 			#reset-cells = <1>;
 			reg = <0x900000 0x4000>;
@@ -135,6 +192,18 @@
 				 <&pxo_board>,
 				 <&lcc PLL4>;
 			clock-names = "cxo", "pxo", "pll4";
+
+			tsens: thermal-sensor {
+				compatible = "qcom,msm8960-tsens";
+
+				nvmem-cells = <&tsens_calib>, <&tsens_backup>;
+				nvmem-cell-names = "calib", "calib_backup";
+				interrupts = <GIC_SPI 178 IRQ_TYPE_LEVEL_HIGH>;
+				interrupt-names = "uplow";
+
+				#qcom,sensors = <5>;
+				#thermal-sensor-cells = <1>;
+			};
 		};
 
 		lcc: clock-controller@28000000 {
-- 
2.47.2