[alsa-devel] [PATCH 0/4] ASoC: add graph base connection on simple-card

[Kuninori Morimoto]

Hi Jean

Thank you for clearing your problem.
Sorry for my confusable email.
But can I ask something ?

> > > My concern is if audio side need to care/support "formal" graph style,
> > > I think all cpu/codec/card driver (and soc-core too ?) need to be updated,
> > > but it is too much for me.
> > > if fake graph style (like this patch) is OK, I'm happy to hack it more.
> > 
> > This "fake graph style" means it is supporting both graph's "remote-endpoint"
> > and current simple-card's "sound-dai" (= not 100% graph style).
(snip)
> So, in brief:
> - the simple-card with only "sound-dai" works fine with or without a
>   graph of ports,
> - for a full use of the graph of ports, forget about the simple-card.

Q1
If we use full graph style card, and if it would like to reuse current existing
CPU/CODEC driver, then, I think CPU/CODEC driver should support graph style too.
(Now, I'm checking v4l2 side existing graph style driver)
I know it is based on its current implementation, but basically YES ?

Q2
If Q1 was Yes, to keeping ABI compatibility,
that CPU/CODEC driver should support both "phandle" and "graph" style ?