ARM: dts: r8a7745: Add DU support

Add du node to r8a7745 SoC DT. Boards that want to enable the DU
need to specify the output topology.
Signed-off-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Reviewed-by: Biju Das <biju.das@bp.renesas.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

arch/arm/boot/dts/r8a7745.dtsi

@@ -821,6 +821,33 @@ qspi: spi@e6b10000 {
 			status = "disabled";
 		};
 
+		du: display@feb00000 {
+			compatible = "renesas,du-r8a7745";
+			reg = <0 0xfeb00000 0 0x40000>;
+			reg-names = "du";
+			interrupts = <GIC_SPI 256 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 268 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&cpg CPG_MOD 724>, <&cpg CPG_MOD 723>;
+			clock-names = "du.0", "du.1";
+			status = "disabled";
+
+			ports {
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				port@0 {
+					reg = <0>;
+					du_out_rgb0: endpoint {
+					};
+				};
+				port@1 {
+					reg = <1>;
+					du_out_rgb1: endpoint {
+					};
+				};
+			};
+		};
+
 		msiof0: spi@e6e20000 {
 			compatible = "renesas,msiof-r8a7745",
 				     "renesas,rcar-gen2-msiof";