ASoC: mediatek: add bindings for wm8960 codec machine driver

add device tree bindings for mt2701-wm8960.

Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/Documentation/devicetree/bindings/sound/mt2701-wm8960.txt b/Documentation/devicetree/bindings/sound/mt2701-wm8960.txt
new file mode 100644 (file)
index 0000000..809b609
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/mt2701-wm8960.txt
@@ -0,0 +1,24 @@
+MT2701 with WM8960 CODEC
+
+Required properties:
+- compatible: "mediatek,mt2701-wm8960-machine"
+- mediatek,platform: the phandle of MT2701 ASoC platform
+- audio-routing: a list of the connections between audio
+- mediatek,audio-codec: the phandles of wm8960 codec
+- pinctrl-names: Should contain only one value - "default"
+- pinctrl-0: Should specify pin control groups used for this controller.
+
+Example:
+
+       sound:sound {
+               compatible = "mediatek,mt2701-wm8960-machine";
+               mediatek,platform = <&afe>;
+               audio-routing =
+                       "Headphone", "HP_L",
+                       "Headphone", "HP_R",
+                       "LINPUT1", "AMIC",
+                       "RINPUT1", "AMIC";
+               mediatek,audio-codec = <&wm8960>;
+               pinctrl-names = "default";
+               pinctrl-0 = <&aud_pins_default>;
+       };