arm64: dts: rockchip: add spdif node to rk356x

This adds the spdif node to the rk356x device tree.
Signed-off-by: Peter Geis <pgwipeout@gmail.com>
Signed-off-by: Nicolas Frattaroli <frattaroli.nicolas@gmail.com>
Link: https://lore.kernel.org/r/20211015111303.1365328-1-frattaroli.nicolas@gmail.comSigned-off-by: Heiko Stuebner <heiko@sntech.de>

arch/arm64/boot/dts/rockchip/rk356x.dtsi

@@ -608,6 +608,20 @@ sdhci: mmc@fe310000 {
 		status = "disabled";
 	};
 
+	spdif: spdif@fe460000 {
+		compatible = "rockchip,rk3568-spdif";
+		reg = <0x0 0xfe460000 0x0 0x1000>;
+		interrupts = <GIC_SPI 102 IRQ_TYPE_LEVEL_HIGH>;
+		clock-names = "mclk", "hclk";
+		clocks = <&cru MCLK_SPDIF_8CH>, <&cru HCLK_SPDIF_8CH>;
+		dmas = <&dmac1 1>;
+		dma-names = "tx";
+		pinctrl-names = "default";
+		pinctrl-0 = <&spdifm0_tx>;
+		#sound-dai-cells = <0>;
+		status = "disabled";
+	};
+
 	dmac0: dmac@fe530000 {
 		compatible = "arm,pl330", "arm,primecell";
 		reg = <0x0 0xfe530000 0x0 0x4000>;