arm64: dts: renesas: r8a77961: Add TPU device node

Add the missing TPU node for the R-Car M3-W+ SoC.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Link: https://lore.kernel.org/r/20210827073819.29992-1-wsa+renesas@sang-engineering.comSigned-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

arch/arm64/boot/dts/renesas/r8a77961.dtsi

@@ -1392,6 +1392,17 @@ scif5: serial@e6f30000 {
 			status = "disabled";
 		};
 
+		tpu: pwm@e6e80000 {
+			compatible = "renesas,tpu-r8a77961", "renesas,tpu";
+			reg = <0 0xe6e80000 0 0x148>;
+			interrupts = <GIC_SPI 135 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&cpg CPG_MOD 304>;
+			power-domains = <&sysc R8A77961_PD_ALWAYS_ON>;
+			resets = <&cpg 304>;
+			#pwm-cells = <3>;
+			status = "disabled";
+		};
+
 		msiof0: spi@e6e90000 {
 			compatible = "renesas,msiof-r8a77961",
 				     "renesas,rcar-gen3-msiof";