ASoC: fsl: add dt support for imx-audmux

It adds device tree probe support for imx-audmux driver.

Signed-off-by: Richard Zhao <richard.zhao@linaro.org>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

1 files changed, 13 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/sound/imx-audmux.txt b/Documentation/devicetree/bindings/sound/imx-audmux.txt
new file mode 100644
index 000000000000..215aa9817213
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/imx-audmux.txt
@@ -0,0 +1,13 @@
+Freescale Digital Audio Mux (AUDMUX) device
+
+Required properties:
+- compatible : "fsl,imx21-audmux" for AUDMUX version firstly used on i.MX21,
+  or "fsl,imx31-audmux" for the version firstly used on i.MX31.
+- reg : Should contain AUDMUX registers location and length
+
+Example:
+
+audmux@021d8000 {
+        compatible = "fsl,imx6q-audmux", "fsl,imx31-audmux";
+        reg = <0x021d8000 0x4000>;
+};