ASoC: dt-bindings: simple-audio-mux: add state-labels property

simple-audio-mux is designed to be used generally, thus "Input 1" or
"Input 2" are used to selecting MUX input. This numbered inputs would
work, but might be not user friendly in some case, for example in case
of system hardware design has some clear labels.
Adds new "state-labels" property and enable to select MUX by own state
names.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://patch.msgid.link/87le2m7xp8.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/Documentation/devicetree/bindings/sound/simple-audio-mux.yaml b/Documentation/devicetree/bindings/sound/simple-audio-mux.yaml
index 9f319caf3db7494a4739393f43dd6af02d581d32..194ac1d4f4f5f40a9bc44e8cd0acbf2eab708365 100644 (file)
--- a/Documentation/devicetree/bindings/sound/simple-audio-mux.yaml
+++ b/Documentation/devicetree/bindings/sound/simple-audio-mux.yaml
@@ -24,6 +24,11 @@ properties:
     description: |
       GPIOs used to select the input line.
 
+  state-labels:
+    description: State of input line. default is "Input 1", "Input 2"
+    $ref: /schemas/types.yaml#/definitions/string-array
+    maxItems: 2
+
   sound-name-prefix: true
 
 required:
@@ -37,4 +42,5 @@ examples:
     mux {
         compatible = "simple-audio-mux";
         mux-gpios = <&gpio 3 0>;
+        state-labels = "Label_A", "Label_B";
     };