[PATCH v2 3/3] arm64: tegra: Add cooling device on Jetson AGX Thor DevKit

[Thierry Reding]

From: Thierry Reding <treding@xxxxxxxxxx>

Monitor the TJ thermal zone and use the main PWM fan of the Jetson AGX
Thor Developer Kit to actively cool the device if needed.

Signed-off-by: Thierry Reding <treding@xxxxxxxxxx>
---
 arch/arm64/boot/dts/nvidia/tegra264-p3834.dtsi     | 32 +++++++++++++
 .../boot/dts/nvidia/tegra264-p4071-0000+p3834.dtsi | 52 ++++++++++++++++++++++
 2 files changed, 84 insertions(+)

diff --git a/arch/arm64/boot/dts/nvidia/tegra264-p3834.dtsi b/arch/arm64/boot/dts/nvidia/tegra264-p3834.dtsi
index 58cd81bc33d7..d4c9f45e03c1 100644
--- a/arch/arm64/boot/dts/nvidia/tegra264-p3834.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra264-p3834.dtsi
@@ -39,4 +39,36 @@ cmdqv@6200000 {
 			status = "okay";
 		};
 	};
+
+	thermal-zones {
+		cpu-thermal {
+			polling-delay-passive = <40>;
+			polling-delay = <1000>;
+			status = "okay";
+		};
+
+		gpu-thermal {
+			polling-delay-passive = <40>;
+			polling-delay = <1000>;
+			status = "okay";
+		};
+
+		soc012-thermal {
+			polling-delay-passive = <40>;
+			polling-delay = <1000>;
+			status = "okay";
+		};
+
+		soc345-thermal {
+			polling-delay-passive = <40>;
+			polling-delay = <1000>;
+			status = "okay";
+		};
+
+		tj-thermal {
+			polling-delay-passive = <40>;
+			polling-delay = <1000>;
+			status = "okay";
+		};
+	};
 };
diff --git a/arch/arm64/boot/dts/nvidia/tegra264-p4071-0000+p3834.dtsi b/arch/arm64/boot/dts/nvidia/tegra264-p4071-0000+p3834.dtsi
index 4550e843f513..dd042e57839a 100644
--- a/arch/arm64/boot/dts/nvidia/tegra264-p4071-0000+p3834.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra264-p4071-0000+p3834.dtsi
@@ -22,4 +22,56 @@ fan: pwm-fan {
 		pwms = <&pwm4 0 40000>;
 		#cooling-cells = <2>;
 	};
+
+	thermal-zones {
+		tj-thermal {
+			trips {
+				tj_trip_active0: active-0 {
+					temperature = <80000>;
+					hysteresis = <0>;
+					type = "active";
+				};
+
+				tj_trip_active1: active-1 {
+					temperature = <86000>;
+					hysteresis = <0>;
+					type = "active";
+				};
+
+				tj_trip_active2: active-2 {
+					temperature = <91000>;
+					hysteresis = <0>;
+					type = "active";
+				};
+
+				tj_trip_active3: active-3 {
+					temperature = <100000>;
+					hysteresis = <0>;
+					type = "active";
+				};
+			};
+
+			cooling-maps {
+				map-active-0 {
+					cooling-device = <&fan 0 1>;
+					trip = <&tj_trip_active0>;
+				};
+
+				map-active-1 {
+					cooling-device = <&fan 1 2>;
+					trip = <&tj_trip_active1>;
+				};
+
+				map-active-2 {
+					cooling-device = <&fan 2 3>;
+					trip = <&tj_trip_active2>;
+				};
+
+				map-active-3 {
+					cooling-device = <&fan 3 4>;
+					trip = <&tj_trip_active3>;
+				};
+			};
+		};
+	};
 };

-- 
2.55.0