arm64: dts: renesas: r8a779f0: Add I2C nodes

Add device nodes for the I2C Bus Interfaces on the Renesas R-Car S4-8
(R8A779F0) SoC.

Based on a larger patch in the BSP by LUU HOAI.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/e1c7fb17801bc82a74aa5364212d02ba51535dd2.1643898884.git.geert+renesas@glider.be

arch/arm64/boot/dts/renesas/r8a779f0.dtsi

@@ -96,6 +96,108 @@ sysc: system-controller@e6180000 {
 			#power-domain-cells = <1>;
 		};
 
+		i2c0: i2c@e6500000 {
+			compatible = "renesas,i2c-r8a779f0",
+				     "renesas,rcar-gen4-i2c";
+			reg = <0 0xe6500000 0 0x40>;
+			interrupts = <GIC_SPI 238 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&cpg CPG_MOD 518>;
+			power-domains = <&sysc R8A779F0_PD_ALWAYS_ON>;
+			resets = <&cpg 518>;
+			dmas = <&dmac0 0x91>, <&dmac0 0x90>,
+			       <&dmac1 0x91>, <&dmac1 0x90>;
+			dma-names = "tx", "rx", "tx", "rx";
+			i2c-scl-internal-delay-ns = <110>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "disabled";
+		};
+
+		i2c1: i2c@e6508000 {
+			compatible = "renesas,i2c-r8a779f0",
+				     "renesas,rcar-gen4-i2c";
+			reg = <0 0xe6508000 0 0x40>;
+			interrupts = <GIC_SPI 239 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&cpg CPG_MOD 519>;
+			power-domains = <&sysc R8A779F0_PD_ALWAYS_ON>;
+			resets = <&cpg 519>;
+			dmas = <&dmac0 0x93>, <&dmac0 0x92>,
+			       <&dmac1 0x93>, <&dmac1 0x92>;
+			dma-names = "tx", "rx", "tx", "rx";
+			i2c-scl-internal-delay-ns = <110>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "disabled";
+		};
+
+		i2c2: i2c@e6510000 {
+			compatible = "renesas,i2c-r8a779f0",
+				     "renesas,rcar-gen4-i2c";
+			reg = <0 0xe6510000 0 0x40>;
+			interrupts = <0 240 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&cpg CPG_MOD 520>;
+			power-domains = <&sysc R8A779F0_PD_ALWAYS_ON>;
+			resets = <&cpg 520>;
+			dmas = <&dmac0 0x95>, <&dmac0 0x94>,
+			       <&dmac1 0x95>, <&dmac1 0x94>;
+			dma-names = "tx", "rx", "tx", "rx";
+			i2c-scl-internal-delay-ns = <110>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "disabled";
+		};
+
+		i2c3: i2c@e66d0000 {
+			compatible = "renesas,i2c-r8a779f0",
+				     "renesas,rcar-gen4-i2c";
+			reg = <0 0xe66d0000 0 0x40>;
+			interrupts = <GIC_SPI 241 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&cpg CPG_MOD 521>;
+			power-domains = <&sysc R8A779F0_PD_ALWAYS_ON>;
+			resets = <&cpg 521>;
+			dmas = <&dmac0 0x97>, <&dmac0 0x96>,
+			       <&dmac1 0x97>, <&dmac1 0x96>;
+			dma-names = "tx", "rx", "tx", "rx";
+			i2c-scl-internal-delay-ns = <110>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "disabled";
+		};
+
+		i2c4: i2c@e66d8000 {
+			compatible = "renesas,i2c-r8a779f0",
+				     "renesas,rcar-gen4-i2c";
+			reg = <0 0xe66d8000 0 0x40>;
+			interrupts = <GIC_SPI 242 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&cpg CPG_MOD 522>;
+			power-domains = <&sysc R8A779F0_PD_ALWAYS_ON>;
+			resets = <&cpg 522>;
+			dmas = <&dmac0 0x99>, <&dmac0 0x98>,
+			       <&dmac1 0x99>, <&dmac1 0x98>;
+			dma-names = "tx", "rx", "tx", "rx";
+			i2c-scl-internal-delay-ns = <110>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "disabled";
+		};
+
+		i2c5: i2c@e66e0000 {
+			compatible = "renesas,i2c-r8a779f0",
+				     "renesas,rcar-gen4-i2c";
+			reg = <0 0xe66e0000 0 0x40>;
+			interrupts = <GIC_SPI 243 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&cpg CPG_MOD 523>;
+			power-domains = <&sysc R8A779F0_PD_ALWAYS_ON>;
+			resets = <&cpg 523>;
+			dmas = <&dmac0 0x9b>, <&dmac0 0x9a>,
+			       <&dmac1 0x9b>, <&dmac1 0x9a>;
+			dma-names = "tx", "rx", "tx", "rx";
+			i2c-scl-internal-delay-ns = <110>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "disabled";
+		};
+
 		scif3: serial@e6c50000 {
 			compatible = "renesas,scif-r8a779f0",
 				     "renesas,rcar-gen4-scif", "renesas,scif";