More Generic Audio Graph Sound Card idea

[Kuninori Morimoto]

Hi Mark
Cc Sameer

> > Having an audio-graph-card2 isn't ideal but may be required at least
> > during development :/  Ideally we'd be able to have the new driver parse
> > both binding formats (or rather, have the new binding format be new use
> > cases for the same binding format) and only use -card2 while it's in
> > development.
> 
> If you want to update current audio-graph-card without creating new
> audio-graph-card2, I'm OK about it. But need adjusting / agreement.
> 
> Current audio-graph-card "DSP" user is only me, and I'm using it only locally.
> Thus upstream doesn't get damage if I removed "audio-graph-scu-card"
> (= DSP use case) support.
> 
> OTOH, Sameer is posting patch for "-cc-" support. If it was accepted
> and he used it on upstream (= on tegra),
> keeping compatibility will be very difficult and/or code will be very confusable.
> 
> If Sameer can OK and wait new audio-graph-card, maybe we have no compatibility issue.
> But in such case, 1st version of new audio-graph-card might be not enough for him.
> Sameer need to waiting / testing / adjusting / etc, etc...

The problem I'm feeling is that new card (= let's call it as card2 here) and
Sameer's posting "-cc-" are conflicted / no-compatibility.
It expands card1 DPCM detection.

The good things having "-cc-" is that he can use it immediately.
the bad things is that it is dificult to keep compatibility between "card1 + -cc-" and "card2".

Creating card2 for development purpose is very welcome for me, and card1 user :)
But after that, if we want to merge card1 and card2, we need to drop "-cc-" support unfortunately.
If we want to keep "-cc-", we need to have both card1 / card2.

So, how to handle it ?

Thank you for your help !!

Best regards
---
Kuninori Morimoto