[alsa-devel] [PATCH 8/8] ASoC: add snd-soc-dummy DT support

[Kuninori Morimoto]

Hi Mark again

> But, How about this case ?
> 
>    FE cpu:   CPU-A
>       codec: Codec-A
> 
>    BE cpu:   CPU-B
>       codec: Codec-B

I found 1 method.
I can create it if we can assume that
"simple-card doen't support above style",

> If the documentation refers to the interface as for example "I2S0" then
> the DT should refer to it as I2S0 too.

simple-card is using "format" property now,
and I remember that someone want to exchange format in DPCM.

My 1st DPCM patch used "remote" property for specify FE/BE.
And, we can get DAI stream_name if we can update snd_soc_of_get_dai_name()
This means, we can use DPCM like below
if you can accept my previous "ASoC: dapm: enable DAI name on DAPM route"
What do you think ?

	sound {
		compatible = "simple-audio-card";

		/* FrontEnd */
		simple-audio-card,dai-link at 0 {
			...
			format = "left_j";
			remote = <&endpoint>;

			cpu {
				sound-dai = <&rcar_sound 0>;
			};
			codec { /* dummy */ };
		};

		/* BackEnd */
		endpoint: simple-audio-card,dai-link at 1 {
			...
			format = "left_j";

			cpu { /* dummy */ };
			codec1: codec {
				sound-dai = <&ak4643>;
			};
		};
	};