arm64: dts: renesas: r8a77965: Add GPIO nodes

Add GPIO nodes to r8a77965 SoC device tree file.
Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

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

@@ -197,35 +197,123 @@ sysc: system-controller@e6180000 {
 		};
 
 		gpio0: gpio@e6050000 {
-			/* placeholder */
+			compatible = "renesas,gpio-r8a77965",
+				     "renesas,rcar-gen3-gpio";
+			reg = <0 0xe6050000 0 0x50>;
+			interrupts = <GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>;
+			#gpio-cells = <2>;
+			gpio-controller;
+			gpio-ranges = <&pfc 0 0 16>;
+			#interrupt-cells = <2>;
+			interrupt-controller;
+			clocks = <&cpg CPG_MOD 912>;
+			power-domains = <&sysc 32>;
+			resets = <&cpg 912>;
 		};
 
 		gpio1: gpio@e6051000 {
-			/* placeholder */
+			compatible = "renesas,gpio-r8a77965",
+				     "renesas,rcar-gen3-gpio";
+			reg = <0 0xe6051000 0 0x50>;
+			interrupts = <GIC_SPI 5 IRQ_TYPE_LEVEL_HIGH>;
+			#gpio-cells = <2>;
+			gpio-controller;
+			gpio-ranges = <&pfc 0 32 29>;
+			#interrupt-cells = <2>;
+			interrupt-controller;
+			clocks = <&cpg CPG_MOD 911>;
+			power-domains = <&sysc 32>;
+			resets = <&cpg 911>;
 		};
 
 		gpio2: gpio@e6052000 {
-			/* placeholder */
+			compatible = "renesas,gpio-r8a77965",
+				     "renesas,rcar-gen3-gpio";
+			reg = <0 0xe6052000 0 0x50>;
+			interrupts = <GIC_SPI 6 IRQ_TYPE_LEVEL_HIGH>;
+			#gpio-cells = <2>;
+			gpio-controller;
+			gpio-ranges = <&pfc 0 64 15>;
+			#interrupt-cells = <2>;
+			interrupt-controller;
+			clocks = <&cpg CPG_MOD 910>;
+			power-domains = <&sysc 32>;
+			resets = <&cpg 910>;
 		};
 
 		gpio3: gpio@e6053000 {
-			/* placeholder */
+			compatible = "renesas,gpio-r8a77965",
+				     "renesas,rcar-gen3-gpio";
+			reg = <0 0xe6053000 0 0x50>;
+			interrupts = <GIC_SPI 7 IRQ_TYPE_LEVEL_HIGH>;
+			#gpio-cells = <2>;
+			gpio-controller;
+			gpio-ranges = <&pfc 0 96 16>;
+			#interrupt-cells = <2>;
+			interrupt-controller;
+			clocks = <&cpg CPG_MOD 909>;
+			power-domains = <&sysc 32>;
+			resets = <&cpg 909>;
 		};
 
 		gpio4: gpio@e6054000 {
-			/* placeholder */
+			compatible = "renesas,gpio-r8a77965",
+				     "renesas,rcar-gen3-gpio";
+			reg = <0 0xe6054000 0 0x50>;
+			interrupts = <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>;
+			#gpio-cells = <2>;
+			gpio-controller;
+			gpio-ranges = <&pfc 0 128 18>;
+			#interrupt-cells = <2>;
+			interrupt-controller;
+			clocks = <&cpg CPG_MOD 908>;
+			power-domains = <&sysc 32>;
+			resets = <&cpg 908>;
 		};
 
 		gpio5: gpio@e6055000 {
-			/* placeholder */
+			compatible = "renesas,gpio-r8a77965",
+				     "renesas,rcar-gen3-gpio";
+			reg = <0 0xe6055000 0 0x50>;
+			interrupts = <GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH>;
+			#gpio-cells = <2>;
+			gpio-controller;
+			gpio-ranges = <&pfc 0 160 26>;
+			#interrupt-cells = <2>;
+			interrupt-controller;
+			clocks = <&cpg CPG_MOD 907>;
+			power-domains = <&sysc 32>;
+			resets = <&cpg 907>;
 		};
 
 		gpio6: gpio@e6055400 {
-			/* placeholder */
+			compatible = "renesas,gpio-r8a77965",
+				     "renesas,rcar-gen3-gpio";
+			reg = <0 0xe6055400 0 0x50>;
+			interrupts = <GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>;
+			#gpio-cells = <2>;
+			gpio-controller;
+			gpio-ranges = <&pfc 0 192 32>;
+			#interrupt-cells = <2>;
+			interrupt-controller;
+			clocks = <&cpg CPG_MOD 906>;
+			power-domains = <&sysc 32>;
+			resets = <&cpg 906>;
 		};
 
 		gpio7: gpio@e6055800 {
-			/* placeholder */
+			compatible = "renesas,gpio-r8a77965",
+				     "renesas,rcar-gen3-gpio";
+			reg = <0 0xe6055800 0 0x50>;
+			interrupts = <GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>;
+			#gpio-cells = <2>;
+			gpio-controller;
+			gpio-ranges = <&pfc 0 224 4>;
+			#interrupt-cells = <2>;
+			interrupt-controller;
+			clocks = <&cpg CPG_MOD 905>;
+			power-domains = <&sysc 32>;
+			resets = <&cpg 905>;
 		};
 
 		intc_ex: interrupt-controller@e61c0000 {