ARM: dts: enable audio support for imx28-evk

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>

arch/arm/boot/dts/imx28-evk.dts

@@ -41,10 +41,31 @@
 		};
 
 		apbx@80040000 {
+			saif0: saif@80042000 {
+				pinctrl-names = "default";
+				pinctrl-0 = <&saif0_pins_a>;
+				status = "okay";
+			};
+
+			saif1: saif@80046000 {
+				pinctrl-names = "default";
+				pinctrl-0 = <&saif1_pins_a>;
+				fsl,saif-master = <&saif0>;
+				status = "okay";
+			};
+
 			i2c0: i2c@80058000 {
 				pinctrl-names = "default";
 				pinctrl-0 = <&i2c0_pins_a>;
 				status = "okay";
+
+				sgtl5000: codec@0a {
+					compatible = "fsl,sgtl5000";
+					reg = <0x0a>;
+					VDDA-supply = <&reg_3p3v>;
+					VDDIO-supply = <&reg_3p3v>;
+
+				};
 			};
 
 			duart: serial@80074000 {
@@ -70,4 +91,24 @@
 			status = "okay";
 		};
 	};
+
+	regulators {
+		compatible = "simple-bus";
+
+		reg_3p3v: 3p3v {
+			compatible = "regulator-fixed";
+			regulator-name = "3P3V";
+			regulator-min-microvolt = <3300000>;
+			regulator-max-microvolt = <3300000>;
+			regulator-always-on;
+		};
+	};
+
+	sound {
+		compatible = "fsl,imx28-evk-sgtl5000",
+			     "fsl,mxs-audio-sgtl5000";
+		model = "imx28-evk-sgtl5000";
+		saif-controllers = <&saif0 &saif1>;
+		audio-codec = <&sgtl5000>;
+	};
 };

arch/arm/boot/dts/imx28.dtsi

@@ -20,6 +20,8 @@
 		gpio2 = &gpio2;
 		gpio3 = &gpio3;
 		gpio4 = &gpio4;
+		saif0 = &saif0;
+		saif1 = &saif1;
 	};
 
 	cpus {
@@ -212,6 +214,23 @@
 					fsl,voltage = <1>;
 					fsl,pull-up = <1>;
 				};
+
+				saif0_pins_a: saif0@0 {
+					reg = <0>;
+					fsl,pinmux-ids =
+						<0x3140 0x3150 0x3160 0x3170>;
+					fsl,drive-strength = <2>;
+					fsl,voltage = <1>;
+					fsl,pull-up = <1>;
+				};
+
+				saif1_pins_a: saif1@0 {
+					reg = <0>;
+					fsl,pinmux-ids = <0x31a0>;
+					fsl,drive-strength = <2>;
+					fsl,voltage = <1>;
+					fsl,pull-up = <1>;
+				};
 			};
 
 			digctl@8001c000 {
@@ -319,8 +338,10 @@
 			};
 
 			saif0: saif@80042000 {
+				compatible = "fsl,imx28-saif";
 				reg = <0x80042000 2000>;
 				interrupts = <59 80>;
+				fsl,saif-dma-channel = <4>;
 				status = "disabled";
 			};
 
@@ -330,8 +351,10 @@
 			};
 
 			saif1: saif@80046000 {
+				compatible = "fsl,imx28-saif";
 				reg = <0x80046000 2000>;
 				interrupts = <58 81>;
+				fsl,saif-dma-channel = <5>;
 				status = "disabled";
 			};