[Linux-stm32] [PATCH v2 00/16] ASoC: Replace dpcm_playback/capture to playback/capture_only

[Jerome Brunet]

On Thu 04 Apr 2024 at 23:13, Kuninori Morimoto <kuninori.morimoto.gx at renesas.com> wrote:

> Hi Jerome
>
> Thank you for your feedback
>
>> playback_only and capture_only have implication on each other. If one is
>> set, the other can/must not be set. This leads to conditions which can
>> be fairly hard to read and possibly bugs.
> (snip)
>> Wouldn't it be better to replace those 2 flags with a single bitfield ?
>> 
>> something like:
>> 
>> unsigned int directions;
>> #define PLAYBACK_VALID	BIT(0)
>> #define CAPTURE_VALID BIT(1)
>
> I think Amadeusz indicated similar idea, and basically I can agree about
> it.

I've seen it afterward. It is similar indeed but I don't think 'None' or
'Both' should have a dedicated bit. That would be yet another
redundance/implication between flags/bits ... so another source of
bugs/complexity IMO.

> But in this patch-set, I want focus to removing dpcm_xxx flag as 1st
> step. So I'm happy to create such patch-set, but I want to handle it as
> another patch-set.

Fine by me ... at least for the Amlogic part.

>
> Thank you for your help !!
>

Thanks for your work !

> Best regards
> ---
> Renesas Electronics
> Ph.D. Kuninori Morimoto


-- 
Jerome