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Re: [PATCH v5 13/14] ASoC: add simple-graph-scu-card document

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  Re: [PATCH v5 13/14] ASoC: add simple-graph-scu-card document Rob Herring <robh@kernel.org> - 2016-12-05 23:50 +0100

#1536500 — Re: [PATCH v5 13/14] ASoC: add simple-graph-scu-card document

On Mon, Nov 28, 2016 at 02:48:37AM +0000, Kuninori Morimoto wrote:
> 
> From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
> 
> Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
> ---
>  .../bindings/sound/simple-graph-scu-card.txt       | 69 ++++++++++++++++++++++
>  1 file changed, 69 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/sound/simple-graph-scu-card.txt
> 
> diff --git a/Documentation/devicetree/bindings/sound/simple-graph-scu-card.txt b/Documentation/devicetree/bindings/sound/simple-graph-scu-card.txt
> new file mode 100644
> index 0000000..b0e46ba
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/sound/simple-graph-scu-card.txt
> @@ -0,0 +1,69 @@
> +Simple-Graph-SCU-Card:
> +
> +Simple-Graph-SCU-Card specifies audio DAI connections of SoC <-> codec.
> +It is based on common bindings for device graphs.
> +see ${LINUX}/Documentation/devicetree/bindings/graph.txt
> +
> +Basically, Simple-Graph-SCU-Card property is same as Simple-Card / Simple-Graph-Card.
> +see ${LINUX}/Documentation/devicetree/bindings/sound/simple-card.txt
> +    ${LINUX}/Documentation/devicetree/bindings/sound/simple-graph-card.txt
> +
> +Main difference between Simple-Graph-Card and Simple-Graph-SCU-Card is that
> +Simple-Graph-SCU-Card can use multi CPU.

So it can have more that 1 port? At least for the bindings, I think you 
should combine these 2 bindings. Whether the driver should be combined 
is separate question. I imagine you have 2 compatible strings because 
you have 2 drivers, but that isn't really a reason to have 2.

I still have no idea what SCU is.

Rob

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