This patch add WM1811 audio codec, I2S interface and the sound
machine nodes to enable audio on exynos4412-trats2 board.

Signed-off-by: Inha Song <ideal.s...@samsung.com>
---
 arch/arm/boot/dts/exynos4412-trats2.dts | 37 +++++++++++++++++++++++++++++++++
 1 file changed, 37 insertions(+)

diff --git a/arch/arm/boot/dts/exynos4412-trats2.dts 
b/arch/arm/boot/dts/exynos4412-trats2.dts
index 29231b4..ec1acaf 100644
--- a/arch/arm/boot/dts/exynos4412-trats2.dts
+++ b/arch/arm/boot/dts/exynos4412-trats2.dts
@@ -203,6 +203,25 @@
                };
        };
 
+       i2c@138A0000 {
+               samsung,i2c-sda-delay = <100>;
+               samsung,i2c-slave-addr = <0x10>;
+               samsung,i2c-max-bus-freq = <100000>;
+               pinctrl-0 = <&i2c4_bus>;
+               pinctrl-names = "default";
+               status = "okay";
+
+               wm1811: wm1811@1a {
+                       compatible = "wlf,wm1811";
+                       reg = <0x1a>;
+                       clocks = <&pmu_system_controller 0>;
+                       clock-names = "MCLK1";
+                       DCVDD-supply = <&ldo3_reg>;
+                       DBVDD1-supply = <&ldo3_reg>;
+                       wlf,ldo1ena = <&gpj0 4 0>;
+               };
+       };
+
        i2c@138D0000 {
                samsung,i2c-sda-delay = <100>;
                samsung,i2c-slave-addr = <0x10>;
@@ -838,6 +857,24 @@
                };
        };
 
+       i2s0: i2s@03830000 {
+               pinctrl-0 = <&i2s0_bus>;
+               pinctrl-names = "default";
+               status = "okay";
+       };
+
+       sound {
+               compatible = "samsung,trats2-audio";
+               samsung,i2s-controller = <&i2s0>;
+               samsung,model = "Trats2";
+               samsung,audio-codec = <&wm1811>;
+               samsung,audio-routing =
+                       "SPK", "SPKOUTLN",
+                       "SPK", "SPKOUTLP",
+                       "SPK", "SPKOUTRN",
+                       "SPK", "SPKOUTRP";
+       };
+
        exynos-usbphy@125B0000 {
                status = "okay";
        };
-- 
2.0.0.390.gcb682f8

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