[PATCH v3 1/3] ASoC: dt-bindings: audio-graph-card: switch to yaml base Documentation

[Kuninori Morimoto]

Hi Rob

> However, What is 'audio-graph-scu-card' supposed to mean compared to 
> 'audio-graph-card'. It's never used by the driver or in any dts file.

It supports advanced use case of audio-graph-card,
but because of it, no *upstream* code is using it so far
(user need to select it locally for now).
Now I'm planning to remove it, but it will be next year.

Thank you for your help !!

Best regards
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Kuninori Morimoto