[UPSTREAM v6.5]: arm64: tegra: Enable thermal support on Jetson Orin NX

Enable the TJ thermal zone and hook up cooling maps for the PWM-
controlled fan and two trip points.

This also removes a duplicate definition of the PWM fan and changes its
cooling levels. This should have no effect, though, because the fan
wasn't previously connected to anything and by default would be turned
off at probe time.

Cherry picked from commit a6fb90f0eefb13e2cf18f39f1a84a9ef6054153b

Bug 3960800
Bug 4035713
Bug 4204722

Acked-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Yi-Wei Wang <yiweiw@nvidia.com>
Change-Id: I222e43a16f8853ccec70006b72a40973b5e2cc86
Reviewed-on: https://git-master.nvidia.com/r/c/device/hardware/nvidia/t23x-public-dts/+/2941396
Reviewed-by: Laxman Dewangan <ldewangan@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>

tegra234-p3767.dtsi

@@ -99,73 +99,23 @@
 	};
 
 	thermal-zones {
-		/*
-		 * This monitoring is far from optimal, but it's good enough
-		 * at this stage.
-		 */
-		cpu-thermal {
+		tj-thermal {
 			polling-delay = <1000>;
 			polling-delay-passive = <1000>;
 			status = "okay";
 
 			trips {
-				critical {
-					temperature = <104500>;
-					hysteresis = <0>;
-					type = "critical";
+				tj_trip_active0: active-0 {
+					temperature = <74000>;
+					hysteresis = <4000>;
+					type = "active";
 				};
 
-				hot {
-					temperature = <99000>;
-					hysteresis = <1000>;
-					type = "hot";
-				};
-
-				board_trip_passive: passive {
+				tj_trip_active1: active-1 {
 					temperature = <95000>;
-					hysteresis = <2000>;
-					type = "passive";
-				};
-
-				board_trip_active2: active-2 {
-					temperature = <80000>;
 					hysteresis = <4000>;
 					type = "active";
 				};
-
-				board_trip_active1: active-1 {
-					temperature = <65000>;
-					hysteresis = <4000>;
-					type = "active";
-				};
-
-				board_trip_active0: active-0 {
-					temperature = <50000>;
-					hysteresis = <4000>;
-					type = "active";
-				};
-			};
-
-			cooling-maps {
-				passive {
-					cooling-device = <&fan 3 3>;
-					trip = <&board_trip_passive>;
-				};
-
-				active2 {
-					cooling-device = <&fan 2 3>;
-					trip = <&board_trip_active2>;
-				};
-
-				active1 {
-					cooling-device = <&fan 1 2>;
-					trip = <&board_trip_active1>;
-				};
-
-				active0 {
-					cooling-device = <&fan 0 1>;
-					trip = <&board_trip_active0>;
-				};
 			};
 		};
 	};

tegra234-p3768-0000+p3767-0000.dts

@@ -112,11 +112,8 @@
 		};
 	};
 
-	fan: pwm-fan {
-		compatible = "pwm-fan";
-		pwms = <&pwm3 0 45334>;
-		cooling-levels = <0 95 178 255>;
-		#cooling-cells = <2>;
+	pwm-fan {
+		cooling-levels = <0 187 255>;
 	};
 
 	vdd_3v3_pcie: regulator-vdd-3v3-pcie {
@@ -131,4 +128,20 @@
 	serial {
 		status = "okay";
 	};
+
+	thermal-zones {
+		tj-thermal {
+			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>;
+				};
+			};
+		};
+	};
 };

tegra234-p3768-0000.dtsi

@@ -209,7 +209,6 @@
 	fan: pwm-fan {
 		compatible = "pwm-fan";
 		pwms = <&pwm3 0 45334>;
-		cooling-levels = <0 95 178 255>;
 		#cooling-cells = <2>;
 	};