Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / Documentation / devicetree / bindings / sound / wm8728.txt

diff --git a/kernel/Documentation/devicetree/bindings/sound/wm8728.txt b/kernel/Documentation/devicetree/bindings/sound/wm8728.txt
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+++ b/kernel/Documentation/devicetree/bindings/sound/wm8728.txt
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+WM8728 audio CODEC
+
+This device supports both I2C and SPI (configured with pin strapping
+on the board).
+
+Required properties:
+
+  - compatible : "wlf,wm8728"
+
+  - reg : the I2C address of the device for I2C, the chip select
+          number for SPI.
+
+Example:
+
+codec: wm8728@1a {
+       compatible = "wlf,wm8728";
+       reg = <0x1a>;
+};