[PATCH v2 09/14] ASoC: audio-graph-card2: add Yaml Document

Kuninori Morimoto kuninori.morimoto.gx at renesas.com
Thu Aug 5 01:51:50 CEST 2021


Hi Mark again

I will take Summer Vacation from tomorrow in 1 week.
I'm sorry for my long term no respoce then.

> Thank you for your feedback
> 
> > The -mf- there reads unfortunately differently in English so we
> > definitely don't want to go with that one I think.  I do agree that it's
> > hard to come up with a name, possibly rich-link-graph-card or something?
> 
> Thanks. It is a little bit long name, so,
> rich-graph-card, or rich-link-card is nice for me.
> 
> > Well, I think the big issue from a DT point of view is needing to add a
> > new generic card at all - there's much less problem with keeping the old
> > ones around than there is with keeping on adding new generic cards.
> 
> I guess/hope the DT issue will be disappear if new card can keep
> existing binding...
> 
> > Actually, looking at the bindings documents I'm not 100% clear what the
> > differences in the binding (as opposed to the code that parses it) are -
> > this may just be the examples being too cut down to show them.  I'm not
> > 100% clear why we have the three different compatibles in there, that
> > feels like something that should just be in the graph description,
> 
> Ohhhh, yes, indeed. I didn't notice about that !
> If my understanding was correct, it can be something like ...
> 
> 	card {
> 		compatible = "rich-graph-card";
> 		...
> 		links = ...
> 		
> 		mix {
> 			...
> 		}
> 		multi {
> 			...
> 		}
> 		codec2codec {
> 			...
> 		}
> 	}
> 
> Hmm, nice idea.
> 
> > especially codec2codec since we might have for example both a DSP and a
> > codec2codec link in the same card.
> 
> It is possible in my understanding, but am I misunderstanding ?
> 
> ... is it naming issue ?
> In my understanding, both "DSP" and "MIXer" are using "DPCM" connection,
> but driver/sample is calling it as "DSP".
> I think "MIXer" and "Codec2Codec" in same card is possible.
> I'm not sure about "DSP" case...
> 
> Thank you for your help !!
> 
> Best regards
> ---
> Kuninori Morimoto


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