[PATCH] ASoC: Arndale: Add machine device tree binding documentation for Arndale board

[Krishna Mohan Dani]

Document the device tree binding for the Arndale board based machine driver.

Signed-off-by: Krishna Mohan Dani <krishna.md at samsung.com>
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 .../devicetree/bindings/sound/arndale.txt          |   24 ++++++++++++++++++++
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 create mode 100644 Documentation/devicetree/bindings/sound/arndale.txt

diff --git a/Documentation/devicetree/bindings/sound/arndale.txt b/Documentation/devicetree/bindings/sound/arndale.txt
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+Audio Binding for Arndale boards
+
+Required properties:
+- compatible : Can be the following,
+			"samsung,arndale-rt5631"
+
+- samsung,audio-cpu: The phandle of the Samsung I2S controller
+- samsung,audio-codec: The phandle of the audio codec
+
+Optional:
+- samsung,model: The name of the sound-card
+
+Arndale Boards has many audio daughter cards, one of them is
+rt5631/alc5631. Below example shows audio bindings for rt5631/
+alc5631 based codec.
+
+Example:
+
+sound {
+		compatible = "samsung,arndale-rt5631";
+
+		samsung,audio-cpu = <&i2s0>
+		samsung,audio-codec = <&rt5631>;
+};
-- 
1.7.9.5