About Cleanup ASoC

[Kuninori Morimoto]

Hi Cezary

Thank you for your feedback

> > 	+-- DeviceA --+       +-- DeviceB -+
> > 	|+-----------+|       |+----------+|
> > 	||ComponentA1||       ||ComponentB||
> > 	||         [DAI] <-> [DAI]        ||  Card-1
> > 	|+-----------+|       |+----------+|
> > 	|             |       +------------+
> > 	|             |
> > 	|             |       +-- DeviceC -+
> > 	|+-----------+|       |+----------+|
> > 	||ComponentA2||       ||ComponentC||
> > 	||         [DAI] <-> [DAI]        ||  Card-2
> > 	|+-----------+|       |+----------+|
> > 	+-------------+       +------------+
> > 
> > If [DeviceA] could separate feature into [ComponentA1] and [ComponentA2],
> > it can use multi Cards on current ASoC, but it is not a generic solution,
> > as Pierre-Louis explained. I can agree about it if my understanding was
> > correct. At least my Sound can't use this style.
> 
> Hello Kuninori,
> 
> Could you explain what you meant by "my Sound"? Perhaps you could also 
> share location of problematic bits in your driver (file path + code 
> lines)? I'd like to take a look - if possible, that is - to better 
> understand your issue.

Thanks.
"my Sound" mean "my sound driver".
The Device image is like this

	+-- DeviceA --+
	|+-----------+|
	||Component  ||
	||         [DAI]
	||         [DAI]
	...
	||         [DAI]
	||         [DAI]
	|+-----------+|
	+-------------+

It calls devm_snd_soc_register_component() here.
Number of DAIs = rsnd_rdai_nr(priv) is based on the SoC (= DT settings),
but these are same DAI.
	<https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/sound/soc/sh/rcar/core.c?h=v5.18#n1923>

The DAIs are setuped here.
	<https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/sound/soc/sh/rcar/core.c?h=v5.18#n1350>

Component driver is here
	<https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/sound/soc/sh/rcar/core.c?h=v5.18#n1810>

DAI ops is here
	<https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/sound/soc/sh/rcar/core.c?h=v5.18#n1067>

Please let me know if something was not understandable.

Thank you for your help !!

Best regards
---
Kuninori Morimoto