ASoC: q6afe: dt-bindings: add compatible string to dais

Add compatible string to dais so that it can support DT based module
autoloading.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Acked-by: Niklas Cassel <niklas.cassel@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/Documentation/devicetree/bindings/sound/qcom,q6afe.txt b/Documentation/devicetree/bindings/sound/qcom,q6afe.txt
index bdbf87d..a817940 100644 (file)
--- a/Documentation/devicetree/bindings/sound/qcom,q6afe.txt
+++ b/Documentation/devicetree/bindings/sound/qcom,q6afe.txt
@@ -17,6 +17,11 @@ used by all apr services. Must contain the following properties.
 subnode of "dais" representing board specific dai setup.
 "dais" node should have following properties followed by dai children.
 
+- compatible:
+       Usage: required
+       Value type: <stringlist>
+       Definition: must be "qcom,q6afe-dais"
+
 - #sound-dai-cells
        Usage: required
        Value type: <u32>
@@ -100,6 +105,7 @@ q6afe@4 {
        reg = <APR_SVC_AFE>;
 
        dais {
+               compatible = "qcom,q6afe-dais";
                #sound-dai-cells = <1>;
                #address-cells = <1>;
                #size-cells = <0>;