arm64: dts: renesas: r8a779g0: Add remaining HSCIF nodes

Add device nodes for the remaining High Speed Serial Communication
Interfaces with FIFO (HSCIF) on the Renesas R-Car V4H (R8A779G0) SoC,
including DMA support.

Reformat the existing HSCIF0 node for consistency.

Based on patches in the BSP by Takeshi Kihara and Vinh Nguyen.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/64c15b2d13439b2072cde0b588a251cb54f7dc01.1666361314.git.geert+renesas@glider.be

arch/arm64/boot/dts/renesas/r8a779g0.dtsi

@@ -355,9 +355,8 @@ i2c5: i2c@e66e0000 {
 
 		hscif0: serial@e6540000 {
 			compatible = "renesas,hscif-r8a779g0",
-				     "renesas,rcar-gen4-hscif",
-				     "renesas,hscif";
-			reg = <0 0xe6540000 0 96>;
+				     "renesas,rcar-gen4-hscif", "renesas,hscif";
+			reg = <0 0xe6540000 0 0x60>;
 			interrupts = <GIC_SPI 246 IRQ_TYPE_LEVEL_HIGH>;
 			clocks = <&cpg CPG_MOD 514>,
 				 <&cpg CPG_CORE R8A779G0_CLK_SASYNCPERD1>,
@@ -371,6 +370,57 @@ hscif0: serial@e6540000 {
 			status = "disabled";
 		};
 
+		hscif1: serial@e6550000 {
+			compatible = "renesas,hscif-r8a779g0",
+				     "renesas,rcar-gen4-hscif", "renesas,hscif";
+			reg = <0 0xe6550000 0 0x60>;
+			interrupts = <GIC_SPI 247 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&cpg CPG_MOD 515>,
+				 <&cpg CPG_CORE R8A779G0_CLK_SASYNCPERD1>,
+				 <&scif_clk>;
+			clock-names = "fck", "brg_int", "scif_clk";
+			dmas = <&dmac0 0x33>, <&dmac0 0x32>,
+			       <&dmac1 0x33>, <&dmac1 0x32>;
+			dma-names = "tx", "rx", "tx", "rx";
+			power-domains = <&sysc R8A779G0_PD_ALWAYS_ON>;
+			resets = <&cpg 515>;
+			status = "disabled";
+		};
+
+		hscif2: serial@e6560000 {
+			compatible = "renesas,hscif-r8a779g0",
+				     "renesas,rcar-gen4-hscif", "renesas,hscif";
+			reg = <0 0xe6560000 0 0x60>;
+			interrupts = <GIC_SPI 248 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&cpg CPG_MOD 516>,
+				 <&cpg CPG_CORE R8A779G0_CLK_SASYNCPERD1>,
+				 <&scif_clk>;
+			clock-names = "fck", "brg_int", "scif_clk";
+			dmas = <&dmac0 0x35>, <&dmac0 0x34>,
+			       <&dmac1 0x35>, <&dmac1 0x34>;
+			dma-names = "tx", "rx", "tx", "rx";
+			power-domains = <&sysc R8A779G0_PD_ALWAYS_ON>;
+			resets = <&cpg 516>;
+			status = "disabled";
+		};
+
+		hscif3: serial@e66a0000 {
+			compatible = "renesas,hscif-r8a779g0",
+				     "renesas,rcar-gen4-hscif", "renesas,hscif";
+			reg = <0 0xe66a0000 0 0x60>;
+			interrupts = <GIC_SPI 249 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&cpg CPG_MOD 517>,
+				 <&cpg CPG_CORE R8A779G0_CLK_SASYNCPERD1>,
+				 <&scif_clk>;
+			clock-names = "fck", "brg_int", "scif_clk";
+			dmas = <&dmac0 0x37>, <&dmac0 0x36>,
+			       <&dmac1 0x37>, <&dmac1 0x36>;
+			dma-names = "tx", "rx", "tx", "rx";
+			power-domains = <&sysc R8A779G0_PD_ALWAYS_ON>;
+			resets = <&cpg 517>;
+			status = "disabled";
+		};
+
 		avb0: ethernet@e6800000 {
 			compatible = "renesas,etheravb-r8a779g0",
 				     "renesas,etheravb-rcar-gen4";