On Fri, Aug 21, 2020 at 7:16 AM Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx> wrote: > > > Hi Mark > Cc Pierre-Louis, Sameer > > Current audio-graph-card driver has DPCM support, > but it is limited (= Mix/Mux/TDM-split/rate-convert/channel-convert). > It was expanded forcibly expanded. > > Because of it, the connection judgement for normal vs DPCM is tricky. > I know Pierre-Louis want to use it for SOF, but something is missing, > thus, can't use (?). Hi Morimoto-san, Thanks for having a look at this. I also tried to use generic machine driver (simple-card) with SOF but I had some trouble creating desired DPCM links. Main limitation of simple-card is that there is no direct way of specifying DPCM links. I had an attempt to introduce a more flexible approach for that here: https://lkml.org/lkml/2019/10/13/123 but obviously we can do better than that. For now, I'm using only normal links with simple-audio card and it works fine for me with SOF, but in the future I think we might need to expand that.
