Documentation: Define the MOP500 Audio Machine Driver Device Tree bindings

Here we add the required documentation for the new Device Tree
bindings pertaining to the MOP500 Audio Machine driver.

Acked-by: Ola Lilja <ola.o.lilja@stericsson.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>

diff --git a/Documentation/devicetree/bindings/sound/ux500-mop500.txt b/Documentation/devicetree/bindings/sound/ux500-mop500.txt
new file mode 100644 (file)
index 0000000..48e071c
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+++ b/Documentation/devicetree/bindings/sound/ux500-mop500.txt
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+* MOP500 Audio Machine Driver
+
+This node is responsible for linking together all ux500 Audio Driver components.
+
+Required properties:
+ - compatible              : "stericsson,snd-soc-mop500"
+
+Non-standard properties:
+ - stericsson,cpu-dai      : Phandle to the CPU-side DAI
+ - stericsson,audio-codec  : Phandle to the Audio CODEC
+ - stericsson,card-name    : Over-ride default card name
+
+Example:
+
+       sound {
+               compatible = "stericsson,snd-soc-mop500";
+
+               stericsson,cpu-dai = <&msp1 &msp3>;
+               stericsson,audio-codec = <&codec>;
+       };
+
+       msp1: msp@80124000 {
+               compatible = "stericsson,ux500-msp-i2s";
+               reg = <0x80124000 0x1000>;
+               interrupts = <0 62 0x4>;
+               v-ape-supply = <&db8500_vape_reg>;
+       };
+
+       msp3: msp@80125000 {
+               compatible = "stericsson,ux500-msp-i2s";
+               reg = <0x80125000 0x1000>;
+               interrupts = <0 62 0x4>;
+               v-ape-supply = <&db8500_vape_reg>;
+       };
+
+       codec: ab8500-codec {
+               compatible = "stericsson,ab8500-codec";
+               stericsson,earpeice-cmv = <950>; /* Units in mV. */
+       };