[PATCH v3 2/2] ARM: dts: imx6sl-evk: Add audio support

[Fabio Estevam]

From: Fabio Estevam <fabio.estevam at freescale.com>

imx6sl-evk has a wm8962 codec. Add support for it.

Signed-off-by: Fabio Estevam <fabio.estevam at freescale.com>
---
Chages since v2:
- Keep it sorted 

 arch/arm/boot/dts/imx6sl-evk.dts | 84 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 84 insertions(+)

diff --git a/arch/arm/boot/dts/imx6sl-evk.dts b/arch/arm/boot/dts/imx6sl-evk.dts
index 1899f85..3216ede 100644
--- a/arch/arm/boot/dts/imx6sl-evk.dts
+++ b/arch/arm/boot/dts/imx6sl-evk.dts
@@ -43,9 +43,49 @@
 			gpio = <&gpio4 2 0>;
 			enable-active-high;
 		};
+
+		reg_aud3v: regulator at 2 {
+			compatible = "regulator-fixed";
+			reg = <2>;
+			regulator-name = "wm8962-supply-3v15";
+			regulator-min-microvolt = <3150000>;
+			regulator-max-microvolt = <3150000>;
+			regulator-boot-on;
+		};
+
+		reg_aud4v: regulator at 3 {
+			compatible = "regulator-fixed";
+			reg = <3>;
+			regulator-name = "wm8962-supply-4v2";
+			regulator-min-microvolt = <4325000>;
+			regulator-max-microvolt = <4325000>;
+			regulator-boot-on;
+		};
+	};
+
+	sound {
+		compatible = "fsl,imx6sl-evk-wm8962", "fsl,imx-audio-wm8962";
+		model = "wm8962-audio";
+		ssi-controller = <&ssi2>;
+		audio-codec = <&codec>;
+		audio-routing =
+			"Headphone Jack", "HPOUTL",
+			"Headphone Jack", "HPOUTR",
+			"Ext Spk", "SPKOUTL",
+			"Ext Spk", "SPKOUTR",
+			"AMIC", "MICBIAS",
+			"IN3R", "AMIC";
+		mux-int-port = <2>;
+		mux-ext-port = <3>;
 	};
 };
 
+&audmux {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_audmux3>;
+	status = "okay";
+};
+
 &ecspi1 {
 	fsl,spi-num-chipselects = <1>;
 	cs-gpios = <&gpio4 11 0>;
@@ -175,6 +215,27 @@
 	};
 };
 
+&i2c2 {
+	clock-frequency = <100000>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_i2c2>;
+	status = "okay";
+
+	codec: wm8962 at 1a {
+		compatible = "wlf,wm8962";
+		reg = <0x1a>;
+		clocks = <&clks IMX6SL_CLK_EXTERN_AUDIO>;
+		DCVDD-supply = <&vgen3_reg>;
+		DBVDD-supply = <&reg_aud3v>;
+		AVDD-supply = <&vgen3_reg>;
+		CPVDD-supply = <&vgen3_reg>;
+		MICVDD-supply = <&reg_aud3v>;
+		PLLVDD-supply = <&vgen3_reg>;
+		SPKVDD1-supply = <&reg_aud4v>;
+		SPKVDD2-supply = <&reg_aud4v>;
+	};
+};
+
 &iomuxc {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_hog>;
@@ -189,6 +250,16 @@
 				MX6SL_PAD_REF_CLK_32K__GPIO3_IO22 0x17059
 				MX6SL_PAD_KEY_COL4__GPIO4_IO00	0x80000000
 				MX6SL_PAD_KEY_COL5__GPIO4_IO02	0x80000000
+				MX6SL_PAD_AUD_MCLK__AUDIO_CLK_OUT 0x4130b0
+			>;
+		};
+
+		pinctrl_audmux3: audmux3grp {
+			fsl,pins = <
+				MX6SL_PAD_AUD_RXD__AUD3_RXD	  0x4130b0
+				MX6SL_PAD_AUD_TXC__AUD3_TXC	  0x4130b0
+				MX6SL_PAD_AUD_TXD__AUD3_TXD	  0x4110b0
+				MX6SL_PAD_AUD_TXFS__AUD3_TXFS	  0x4130b0
 			>;
 		};
 
@@ -221,6 +292,14 @@
 			>;
 		};
 
+
+		pinctrl_i2c2: i2c2grp {
+			fsl,pins = <
+				MX6SL_PAD_I2C2_SCL__I2C2_SCL	0x4001b8b1
+				MX6SL_PAD_I2C2_SDA__I2C2_SDA	0x4001b8b1
+			>;
+		};
+
 		pinctrl_kpp: kppgrp {
 			fsl,pins = <
 				MX6SL_PAD_KEY_ROW0__KEY_ROW0    0x1b010
@@ -374,6 +453,11 @@
 	status = "okay";
 };
 
+&ssi2 {
+	fsl,mode = "i2s-slave";
+	status = "okay";
+};
+
 &uart1 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_uart1>;
-- 
1.8.1.2