From 8f053e5616352943e16966f195f5a7a161e6fe7d Mon Sep 17 00:00:00 2001
From: Mantas Pucka <mantas@8devices.com>
Date: Thu, 25 Jan 2024 11:04:12 +0200
Subject: [PATCH] arm64: dts: qcom: ipq6018: add thermal zones

Add thermal zones to make use of thermal sensors data. For CPU zone,
add cooling device that uses CPU frequency scaling.

Signed-off-by: Mantas Pucka <mantas@8devices.com>
Link: https://lore.kernel.org/r/1706173452-1017-4-git-send-email-mantas@8devices.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
---
 arch/arm64/boot/dts/qcom/ipq6018.dtsi | 121 ++++++++++++++++++++++++++
 1 file changed, 121 insertions(+)

--- a/arch/arm64/boot/dts/qcom/ipq6018.dtsi
+++ b/arch/arm64/boot/dts/qcom/ipq6018.dtsi
@@ -9,6 +9,7 @@
 #include <dt-bindings/clock/qcom,gcc-ipq6018.h>
 #include <dt-bindings/reset/qcom,gcc-ipq6018.h>
 #include <dt-bindings/clock/qcom,apss-ipq.h>
+#include <dt-bindings/thermal/thermal.h>
 
 / {
 	#address-cells = <2>;
@@ -43,6 +44,7 @@
 			clock-names = "cpu";
 			operating-points-v2 = <&cpu_opp_table>;
 			cpu-supply = <&ipq6018_s2>;
+			#cooling-cells = <2>;
 		};
 
 		CPU1: cpu@1 {
@@ -55,6 +57,7 @@
 			clock-names = "cpu";
 			operating-points-v2 = <&cpu_opp_table>;
 			cpu-supply = <&ipq6018_s2>;
+			#cooling-cells = <2>;
 		};
 
 		CPU2: cpu@2 {
@@ -67,6 +70,7 @@
 			clock-names = "cpu";
 			operating-points-v2 = <&cpu_opp_table>;
 			cpu-supply = <&ipq6018_s2>;
+			#cooling-cells = <2>;
 		};
 
 		CPU3: cpu@3 {
@@ -79,6 +83,7 @@
 			clock-names = "cpu";
 			operating-points-v2 = <&cpu_opp_table>;
 			cpu-supply = <&ipq6018_s2>;
+			#cooling-cells = <2>;
 		};
 
 		L2_0: l2-cache {
@@ -888,6 +893,122 @@
 		};
 	};
 
+	thermal-zones {
+		nss-top-thermal {
+			polling-delay-passive = <250>;
+			polling-delay = <1000>;
+			thermal-sensors = <&tsens 4>;
+
+			trips {
+				nss-top-critical {
+					temperature = <125000>;
+					hysteresis = <1000>;
+					type = "critical";
+				};
+			};
+		};
+
+		nss-thermal {
+			polling-delay-passive = <250>;
+			polling-delay = <1000>;
+			thermal-sensors = <&tsens 5>;
+
+			trips {
+				nss-critical {
+					temperature = <125000>;
+					hysteresis = <1000>;
+					type = "critical";
+				};
+			};
+		};
+
+		wcss-phya0-thermal {
+			polling-delay-passive = <250>;
+			polling-delay = <1000>;
+			thermal-sensors = <&tsens 7>;
+
+			trips {
+				wcss-phya0-critical {
+					temperature = <125000>;
+					hysteresis = <1000>;
+					type = "critical";
+				};
+			};
+		};
+
+		wcss-phya1-thermal {
+			polling-delay-passive = <250>;
+			polling-delay = <1000>;
+			thermal-sensors = <&tsens 8>;
+
+			trips {
+				wcss-phya1-critical {
+					temperature = <125000>;
+					hysteresis = <1000>;
+					type = "critical";
+				};
+			};
+		};
+
+		cpu-thermal {
+			polling-delay-passive = <250>;
+			polling-delay = <1000>;
+			thermal-sensors = <&tsens 13>;
+
+			trips {
+				cpu-critical {
+					temperature = <125000>;
+					hysteresis = <1000>;
+					type = "critical";
+				};
+
+				cpu_alert: cpu-passive {
+					temperature = <110000>;
+					hysteresis = <1000>;
+					type = "passive";
+				};
+			};
+
+			cooling-maps {
+				map0 {
+					trip = <&cpu_alert>;
+					cooling-device = <&CPU0 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
+							 <&CPU1 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
+							 <&CPU2 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>,
+							 <&CPU3 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+				};
+			};
+		};
+
+		lpass-thermal {
+			polling-delay-passive = <250>;
+			polling-delay = <1000>;
+			thermal-sensors = <&tsens 14>;
+
+			trips {
+				lpass-critical {
+					temperature = <125000>;
+					hysteresis = <1000>;
+					type = "critical";
+				};
+			};
+		};
+
+		ddrss-top-thermal {
+			polling-delay-passive = <250>;
+			polling-delay = <1000>;
+			thermal-sensors = <&tsens 15>;
+
+			trips {
+				ddrss-top-critical {
+					temperature = <125000>;
+					hysteresis = <1000>;
+					type = "critical";
+				};
+			};
+		};
+	};
+
 	timer {
 		compatible = "arm,armv8-timer";
 		interrupts = <GIC_PPI 2 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,