ASoC: samsung,tm2-audio DT binding documentation update

This patch documents additional entries of the audio-codec and
i2s-controller properties required for the HDMI audio support.

Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/Documentation/devicetree/bindings/sound/samsung,tm2-audio.txt b/Documentation/devicetree/bindings/sound/samsung,tm2-audio.txt
index 94442e5..f5ccc12 100644 (file)
--- a/Documentation/devicetree/bindings/sound/samsung,tm2-audio.txt
+++ b/Documentation/devicetree/bindings/sound/samsung,tm2-audio.txt
@@ -4,9 +4,13 @@ Required properties:
 
  - compatible           : "samsung,tm2-audio"
  - model                : the user-visible name of this sound complex
- - audio-codec          : the phandle of the wm5110 audio codec node,
-                          as described in ../mfd/arizona.txt
- - i2s-controller       : the phandle of the I2S controller
+ - audio-codec          : the first entry should be phandle of the wm5110 audio
+                          codec node, as described in ../mfd/arizona.txt;
+                          the second entry should be phandle of the HDMI
+                          transmitter node
+ - i2s-controller       : the list of phandle and argument tuples pointing to
+                          I2S controllers, the first entry should be I2S0 and
+                          the second one I2S1
  - audio-amplifier      : the phandle of the MAX98504 amplifier
  - samsung,audio-routing : a list of the connections between audio components;
                           each entry is a pair of strings, the first being the
@@ -22,8 +26,8 @@ Example:
 
 sound {
        compatible = "samsung,tm2-audio";
-       audio-codec = <&wm5110>;
-       i2s-controller = <&i2s0>;
+       audio-codec = <&wm5110>, <&hdmi>;
+       i2s-controller = <&i2s0 0>, <&i2s1 0>;
        audio-amplifier = <&max98504>;
        mic-bias-gpios = <&gpr3 2 0>;
        model = "wm5110";