arm64: dts: renesas: r8a77965: Add R-Car Gen3 thermal support

Based on previous work by Ryo Kataoka <ryo.kataoka.wt@renesas.com>.
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
[simon: moved thermal node to preseve ordering of nodes by bus address]
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

arch/arm64/boot/dts/renesas/r8a77965.dtsi

@@ -282,6 +282,21 @@ sysc: system-controller@e6180000 {
 			#power-domain-cells = <1>;
 		};
 
+		tsc: thermal@e6198000 {
+			compatible = "renesas,r8a77965-thermal";
+			reg = <0 0xe6198000 0 0x100>,
+			      <0 0xe61a0000 0 0x100>,
+			      <0 0xe61a8000 0 0x100>;
+			interrupts = <GIC_SPI 67 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 68 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 69 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&cpg CPG_MOD 522>;
+			power-domains = <&sysc R8A77965_PD_ALWAYS_ON>;
+			resets = <&cpg 522>;
+			#thermal-sensor-cells = <1>;
+			status = "okay";
+		};
+
 		intc_ex: interrupt-controller@e61c0000 {
 			compatible = "renesas,intc-ex-r8a77965", "renesas,irqc";
 			#interrupt-cells = <2>;
@@ -1192,6 +1207,50 @@ timer {
 				      <&gic GIC_PPI 10 (GIC_CPU_MASK_SIMPLE(2) | IRQ_TYPE_LEVEL_LOW)>;
 	};
 
+	thermal-zones {
+		sensor_thermal1: sensor-thermal1 {
+			polling-delay-passive = <250>;
+			polling-delay = <1000>;
+			thermal-sensors = <&tsc 0>;
+
+			trips {
+				sensor1_crit: sensor1-crit {
+					temperature = <120000>;
+					hysteresis = <1000>;
+					type = "critical";
+				};
+			};
+		};
+
+		sensor_thermal2: sensor-thermal2 {
+			polling-delay-passive = <250>;
+			polling-delay = <1000>;
+			thermal-sensors = <&tsc 1>;
+
+			trips {
+				sensor2_crit: sensor2-crit {
+					temperature = <120000>;
+					hysteresis = <1000>;
+					type = "critical";
+				};
+			};
+		};
+
+		sensor_thermal3: sensor-thermal3 {
+			polling-delay-passive = <250>;
+			polling-delay = <1000>;
+			thermal-sensors = <&tsc 2>;
+
+			trips {
+				sensor3_crit: sensor3-crit {
+					temperature = <120000>;
+					hysteresis = <1000>;
+					type = "critical";
+				};
+			};
+		};
+	};
+
 	/* External USB clocks - can be overridden by the board */
 	usb3s0_clk: usb3s0 {
 		compatible = "fixed-clock";