arm64: dts: renesas: r8a77961: Add USB3.0 device nodes

This patch adds USB3.0 related device nodes for r8a77961 (R-Car M3-W+).
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Link: https://lore.kernel.org/r/1585117470-8625-3-git-send-email-yoshihiro.shimoda.uh@renesas.comSigned-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

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

@@ -678,9 +678,16 @@ usb_dmac1: dma-controller@e65b0000 {
 		};
 
 		usb3_phy0: usb-phy@e65ee000 {
+			compatible = "renesas,r8a77961-usb3-phy",
+				     "renesas,rcar-gen3-usb3-phy";
 			reg = <0 0xe65ee000 0 0x90>;
+			clocks = <&cpg CPG_MOD 328>, <&usb3s0_clk>,
+				 <&usb_extal_clk>;
+			clock-names = "usb3-if", "usb3s_clk", "usb_extal";
+			power-domains = <&sysc R8A77961_PD_ALWAYS_ON>;
+			resets = <&cpg 328>;
 			#phy-cells = <0>;
-			/* placeholder */
+			status = "disabled";
 		};
 
 		arm_cc630p: crypto@e6601000 {
@@ -929,13 +936,25 @@ rcar_sound,ssi {
 		};
 
 		xhci0: usb@ee000000 {
+			compatible = "renesas,xhci-r8a77961",
+				     "renesas,rcar-gen3-xhci";
 			reg = <0 0xee000000 0 0xc00>;
-			/* placeholder */
+			interrupts = <GIC_SPI 102 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&cpg CPG_MOD 328>;
+			power-domains = <&sysc R8A77961_PD_ALWAYS_ON>;
+			resets = <&cpg 328>;
+			status = "disabled";
 		};
 
 		usb3_peri0: usb@ee020000 {
+			compatible = "renesas,r8a77961-usb3-peri",
+				     "renesas,rcar-gen3-usb3-peri";
 			reg = <0 0xee020000 0 0x400>;
-			/* placeholder */
+			interrupts = <GIC_SPI 104 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&cpg CPG_MOD 328>;
+			power-domains = <&sysc R8A77961_PD_ALWAYS_ON>;
+			resets = <&cpg 328>;
+			status = "disabled";
 		};
 
 		ohci0: usb@ee080000 {