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ASoC: add DT documentation for the sound-name-prefix property 

Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
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Jerome Brunet 2018-07-13 14:50:42 +02:00 committed by Mark Brown
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commit d5418ae3f9
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Documentation/devicetree/bindings/sound/name-prefix.txt Normal file
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Name prefix:
Card implementing the routing property define the connection between
audio components as list of string pair. Component using the same
sink/source names may use the name prefix property to prepend the
name of their sinks/sources with the provided string.
Optional name prefix property:
- sound-name-prefix : string using as prefix for the sink/source names of
the component.
Example: Two instances of the same component.
amp0: analog-amplifier@0 {
compatible = "simple-audio-amplifier";
enable-gpios = <&gpio GPIOH_3 0>;
sound-name-prefix = "FRONT";
};
amp1: analog-amplifier@1 {
compatible = "simple-audio-amplifier";
enable-gpios = <&gpio GPIOH_4 0>;
sound-name-prefix = "BACK";
};