[PATCH 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>
---
 arch/arm/boot/dts/imx6sl-evk.dts  | 72 +++++++++++++++++++++++++++++++++++++++
 arch/arm/boot/dts/imx6sl-pingrp.h | 11 ++++++
 arch/arm/boot/dts/imx6sl.dtsi     |  3 ++
 3 files changed, 86 insertions(+)

diff --git a/arch/arm/boot/dts/imx6sl-evk.dts b/arch/arm/boot/dts/imx6sl-evk.dts
index 5ba15ab..9e1ab77 100644
--- a/arch/arm/boot/dts/imx6sl-evk.dts
+++ b/arch/arm/boot/dts/imx6sl-evk.dts
@@ -24,6 +24,22 @@
 		#address-cells = <1>;
 		#size-cells = <0>;
 
+		reg_aud3v: wm8962_supply_3v15 {
+			compatible = "regulator-fixed";
+			regulator-name = "wm8962-supply-3v15";
+			regulator-min-microvolt = <3150000>;
+			regulator-max-microvolt = <3150000>;
+			regulator-boot-on;
+		};
+
+		reg_aud4v: wm8962_supply_4v2 {
+			compatible = "regulator-fixed";
+			regulator-name = "wm8962-supply-4v2";
+			regulator-min-microvolt = <4325000>;
+			regulator-max-microvolt = <4325000>;
+			regulator-boot-on;
+		};
+
 		reg_usb_otg1_vbus: regulator at 0 {
 			compatible = "regulator-fixed";
 			reg = <0>;
@@ -44,6 +60,28 @@
 			enable-active-high;
 		};
 	};
+
+	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";
 };
 
 &i2c1 {
@@ -152,6 +190,27 @@
 	};
 };
 
+&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>;
+	};
+};
+
 &ecspi1 {
 	fsl,spi-num-chipselects = <1>;
 	cs-gpios = <&gpio4 11 0>;
@@ -192,10 +251,18 @@
 			>;
 		};
 
+		pinctrl_audmux3: audmux3grp {
+			fsl,pins = <MX6SL_AUDMUX3_PINGRP1>;
+		};
+
 		pinctrl_i2c1: i2c1grp {
 			fsl,pins = <MX6SL_I2C1_PINGRP1>;
 		};
 
+		pinctrl_i2c2: i2c2grp {
+			fsl,pins = <MX6SL_I2C2_PINGRP1>;
+		};
+
 		pinctrl_ecspi1: ecspi1grp {
 			fsl,pins = <MX6SL_ECSPI1_PINGRP1>;
 		};
@@ -277,6 +344,11 @@
 	status = "okay";
 };
 
+&ssi2 {
+	fsl,mode = "i2s-slave";
+	status = "okay";
+};
+
 &uart1 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_uart1>;
diff --git a/arch/arm/boot/dts/imx6sl-pingrp.h b/arch/arm/boot/dts/imx6sl-pingrp.h
index cada37a..ee50ace 100644
--- a/arch/arm/boot/dts/imx6sl-pingrp.h
+++ b/arch/arm/boot/dts/imx6sl-pingrp.h
@@ -10,6 +10,13 @@
 #ifndef __DTS_IMX6SL_PINGRP_H
 #define __DTS_IMX6SL_PINGRP_H
 
+#define MX6SL_AUDMUX3_PINGRP1 \
+	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 \
+	MX6SL_PAD_AUD_MCLK__AUDIO_CLK_OUT 0x4130B0
+
 #define MX6SL_ECSPI1_PINGRP1 \
 	MX6SL_PAD_ECSPI1_MISO__ECSPI1_MISO		0x100b1 \
 	MX6SL_PAD_ECSPI1_MOSI__ECSPI1_MOSI		0x100b1 \
@@ -19,6 +26,10 @@
 	MX6SL_PAD_I2C1_SCL__I2C1_SCL			0x4001b8b1 \
 	MX6SL_PAD_I2C1_SDA__I2C1_SDA			0x4001b8b1
 
+#define MX6SL_I2C2_PINGRP1 \
+	MX6SL_PAD_I2C2_SCL__I2C2_SCL			0x4001b8b1 \
+	MX6SL_PAD_I2C2_SDA__I2C2_SDA			0x4001b8b1
+
 #define MX6SL_FEC_PINGRP1 \
 	MX6SL_PAD_FEC_MDC__FEC_MDC			0x1b0b0 \
 	MX6SL_PAD_FEC_MDIO__FEC_MDIO			0x1b0b0 \
diff --git a/arch/arm/boot/dts/imx6sl.dtsi b/arch/arm/boot/dts/imx6sl.dtsi
index 95bb37b..04cf457 100644
--- a/arch/arm/boot/dts/imx6sl.dtsi
+++ b/arch/arm/boot/dts/imx6sl.dtsi
@@ -236,6 +236,7 @@
 					       <&sdma 38 1 0>;
 					dma-names = "rx", "tx";
 					fsl,fifo-depth = <15>;
+					fsl,ssi-dma-events = <38 37>;
 					status = "disabled";
 				};
 
@@ -250,6 +251,7 @@
 					       <&sdma 42 1 0>;
 					dma-names = "rx", "tx";
 					fsl,fifo-depth = <15>;
+					fsl,ssi-dma-events = <42 41>;
 					status = "disabled";
 				};
 
@@ -264,6 +266,7 @@
 					       <&sdma 46 1 0>;
 					dma-names = "rx", "tx";
 					fsl,fifo-depth = <15>;
+					fsl,ssi-dma-events = <46 45>;
 					status = "disabled";
 				};
 
-- 
1.8.1.2