ARM: dts: Add sound node for exynos5250-snow board

The audio codec on Snow board, MAX98095 is connected on I2C7 bus.
Also it requires the GPX1-7 line to be pulled up.

Updated Snow DTS file to incorporate above changes and added a
sound node to instantiate the I2S-based sound card.

Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

diff --git a/arch/arm/boot/dts/exynos5250-snow.dts b/arch/arm/boot/dts/exynos5250-snow.dts
index c43cd3d..9d1ca09 100644 (file)
--- a/arch/arm/boot/dts/exynos5250-snow.dts
+++ b/arch/arm/boot/dts/exynos5250-snow.dts
@@ -45,6 +45,13 @@
                        samsung,pin-drv = <0>;
                };
 
+               max98095_en: max98095-en {
+                       samsung,pins = "gpx1-7";
+                       samsung,pin-function = <0>;
+                       samsung,pin-pud = <3>;
+                       samsung,pin-drv = <0>;
+               };
+
                tps65090_irq: tps65090-irq {
                        samsung,pins = "gpx2-6";
                        samsung,pin-function = <0>;
@@ -321,6 +328,26 @@
                };
        };
 
+       i2c@12CD0000 {
+               max98095: codec@11 {
+                       compatible = "maxim,max98095";
+                       reg = <0x11>;
+                       pinctrl-0 = <&max98095_en>;
+                       pinctrl-names = "default";
+               };
+       };
+
+       i2s0: i2s@03830000 {
+               status = "okay";
+       };
+
+       sound {
+               compatible = "google,snow-audio-max98095";
+
+               samsung,i2s-controller = <&i2s0>;
+               samsung,audio-codec = <&max98095>;
+       };
+
        usb@12110000 {
                samsung,vbus-gpio = <&gpx1 1 0>;
        };