[PATCH 1/2] ARM: dts: Add sound node for Snow board

[Tushar Behera <tushar.behera@linaro.org>]

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>
---
 arch/arm/boot/dts/exynos5250-snow.dts |   32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)

diff --git a/arch/arm/boot/dts/exynos5250-snow.dts b/arch/arm/boot/dts/exynos5250-snow.dts
index 1bc9b50..f63df3c 100644
--- a/arch/arm/boot/dts/exynos5250-snow.dts
+++ b/arch/arm/boot/dts/exynos5250-snow.dts
@@ -196,6 +196,38 @@
 		};
 	};
 
+	regulators {
+		compatible = "simple-bus";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		max98095-en-regulator {
+			compatible = "regulator-fixed";
+			gpio = <&gpx1 7 0>;
+			enable-active-high;
+			regulator-boot-on;
+			regulator-always-on;
+		};
+	};
+
+	i2c@12CD0000 {
+		max98095: codec@11 {
+			compatible = "maxim,max98095";
+			reg = <0x11>;
+		};
+	};
+
+	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>;
 	};
-- 
1.7.9.5