Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / Documentation / devicetree / bindings / sound / cs4270.txt

diff --git a/kernel/Documentation/devicetree/bindings/sound/cs4270.txt b/kernel/Documentation/devicetree/bindings/sound/cs4270.txt
new file mode 100644 (file)
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+++ b/kernel/Documentation/devicetree/bindings/sound/cs4270.txt
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+CS4270 audio CODEC
+
+The driver for this device currently only supports I2C.
+
+Required properties:
+
+  - compatible : "cirrus,cs4270"
+
+  - reg : the I2C address of the device for I2C
+
+Optional properties:
+
+  - reset-gpio : a GPIO spec for the reset pin. If specified, it will be
+                deasserted before communication to the codec starts.
+
+Example:
+
+codec: cs4270@48 {
+       compatible = "cirrus,cs4270";
+       reg = <0x48>;
+};