Hi Lars
Thank you for your comment
> > sound {
> > compatible = "simple-audio-card";
> >
> > /* FrontEnd */
> > simple-audio-card,dai-link@0 {
> > ...
> > format = "left_j";
> > remote = <&endpoint>;
> >
> > cpu {
> > sound-dai = <&rcar_sound 0>;
> > };
> > codec { /* dummy */ };
> > };
> >
> > /* BackEnd */
> > endpoint: simple-audio-card,dai-link@1 {
> > ...
> > format = "left_j";
> >
> > cpu { /* dummy */ };
> > codec1: codec {
> > sound-dai = <&ak4643>;
> > };
> > };
> > };
>
> When you try to come up with with a binding try to completely ignore that
> something call DPCM exists. The binding is supposed to describe the hardware
> and how the different hardware components are interconnected. So try to come
> up with a binding that accurately describes the hardware connections. Once
> that is done try to map the binding onto the existing software framework.
> The last step may require some adjustments to the framework.
Now, my system is working well with simple-card by this
sound {
compatible = "simple-audio-card";
...
cpu {
sound-dai = <&rcar_sound 0>;
};
codec {
sound-dai = <&ak4643>;
};
};
The reason why I'm tring to support DPCM on simple-card is "sampling rate
convert".
My rcar_sound can convert sampling rate, and I tried to add this feature as
rcar_sound property.
But, Mark rejected and requests me to use DPCM for it,
since it can be common featrue.
Current existing simple-card can't use it, and I'm tring.
But, am I misunderstanding ?
Best regards
---
Kuninori Morimoto
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