ARM: dts: imx6sx-sabreauto: Add SPDIF support

Add SPDIF support.

Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm/boot/dts/imx6sx-sabreauto.dts

@@ -66,6 +66,13 @@
 		enable-active-high;
 		vin-supply = <&reg_can_en>;
 	};
+
+	sound-spdif {
+		compatible = "fsl,imx-audio-spdif";
+		model = "imx-spdif";
+		spdif-controller = <&spdif>;
+		spdif-in;
+	};
 };
 
 &anaclk2 {
@@ -227,6 +234,12 @@
 		>;
 	};
 
+	pinctrl_spdif: spdifgrp {
+		fsl,pins = <
+			MX6SX_PAD_ENET2_COL__SPDIF_IN           0x1b0b0
+		>;
+	};
+
 	pinctrl_uart1: uart1grp {
 		fsl,pins = <
 			MX6SX_PAD_GPIO1_IO04__UART1_DCE_TX		0x1b0b1
@@ -454,6 +467,14 @@
 	};
 };
 
+&spdif {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_spdif>;
+	assigned-clocks = <&clks IMX6SX_CLK_SPDIF_PODF>;
+	assigned-clock-rates = <24576000>;
+	status = "okay";
+};
+
 &wdog1 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_wdog>;