ARM: dts: r8a7742: Add thermal device to DT

This patch instantiates the thermal sensor module with thermal-zone
support.
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Marian-Cristian Rotariu <marian-cristian.rotariu.rb@bp.renesas.com>
Link: https://lore.kernel.org/r/1590614320-30160-3-git-send-email-prabhakar.mahadev-lad.rj@bp.renesas.comSigned-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

arch/arm/boot/dts/r8a7742.dtsi

@@ -375,6 +375,17 @@ irqc: interrupt-controller@e61c0000 {
 			resets = <&cpg 407>;
 		};
 
+		thermal: thermal@e61f0000 {
+			compatible = "renesas,thermal-r8a7742",
+				     "renesas,rcar-gen2-thermal";
+			reg = <0 0xe61f0000 0 0x10>, <0 0xe61f0100 0 0x38>;
+			interrupts = <GIC_SPI 69 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&cpg CPG_MOD 522>;
+			power-domains = <&sysc R8A7742_PD_ALWAYS_ON>;
+			resets = <&cpg 522>;
+			#thermal-sensor-cells = <0>;
+		};
+
 		icram0: sram@e63a0000 {
 			compatible = "mmio-sram";
 			reg = <0 0xe63a0000 0 0x12000>;
@@ -1359,6 +1370,25 @@ prr: chipid@ff000044 {
 		};
 	};
 
+	thermal-zones {
+		cpu_thermal: cpu-thermal {
+			polling-delay-passive = <0>;
+			polling-delay = <0>;
+
+			thermal-sensors = <&thermal>;
+
+			trips {
+				cpu-crit {
+					temperature = <95000>;
+					hysteresis = <0>;
+					type = "critical";
+				};
+			};
+			cooling-maps {
+			};
+		};
+	};
+
 	timer {
 		compatible = "arm,armv7-timer";
 		interrupts-extended = <&gic GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(8) | IRQ_TYPE_LEVEL_LOW)>,