ARM: dts: r8a7745: Add audio DMAC support

Instantiate the audio DMA controller on the r8a7745 device tree.
Signed-off-by: Biju Das <biju.das@bp.renesas.com>
Reviewed-by: Fabrizio Castro <fabrizio.castro@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

arch/arm/boot/dts/r8a7745.dtsi

@@ -397,6 +397,37 @@ GIC_SPI 317 IRQ_TYPE_LEVEL_HIGH
 			dma-channels = <15>;
 		};
 
+		audma0: dma-controller@ec700000 {
+			compatible = "renesas,dmac-r8a7745",
+				     "renesas,rcar-dmac";
+			reg = <0 0xec700000 0 0x10000>;
+			interrupts = <GIC_SPI 346 IRQ_TYPE_LEVEL_HIGH
+				      GIC_SPI 320 IRQ_TYPE_LEVEL_HIGH
+				      GIC_SPI 321 IRQ_TYPE_LEVEL_HIGH
+				      GIC_SPI 322 IRQ_TYPE_LEVEL_HIGH
+				      GIC_SPI 323 IRQ_TYPE_LEVEL_HIGH
+				      GIC_SPI 324 IRQ_TYPE_LEVEL_HIGH
+				      GIC_SPI 325 IRQ_TYPE_LEVEL_HIGH
+				      GIC_SPI 326 IRQ_TYPE_LEVEL_HIGH
+				      GIC_SPI 327 IRQ_TYPE_LEVEL_HIGH
+				      GIC_SPI 328 IRQ_TYPE_LEVEL_HIGH
+				      GIC_SPI 329 IRQ_TYPE_LEVEL_HIGH
+				      GIC_SPI 330 IRQ_TYPE_LEVEL_HIGH
+				      GIC_SPI 331 IRQ_TYPE_LEVEL_HIGH
+				      GIC_SPI 332 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-names = "error",
+					  "ch0", "ch1", "ch2", "ch3",
+					  "ch4", "ch5", "ch6", "ch7",
+					  "ch8", "ch9", "ch10", "ch11",
+					  "ch12";
+			clocks = <&cpg CPG_MOD 502>;
+			clock-names = "fck";
+			power-domains = <&sysc R8A7745_PD_ALWAYS_ON>;
+			resets = <&cpg 502>;
+			#dma-cells = <1>;
+			dma-channels = <13>;
+		};
+
 		usb_dmac0: dma-controller@e65a0000 {
 			compatible = "renesas,r8a7745-usb-dmac",
 				     "renesas,usb-dmac";