Hi Sameer > The series [0] introduces small deltas to resolve issues I am > facing. As you see, most of the implementation is unchanged for the > graph-card driver. Hence I am not sure if we need a new driver now. Yes, maybe it is not needed *for now*, but will be issue in the future, because I can't have normal-link and DPCM-link in the same time, right ? > at all it gets complicated in future, the "-cc-" compatible can be > moved to new driver? Please note that the new "-cc-" compatibility is > added to address following and some of these are discussed in [1]. > - DPCM usage with component model (where there can be N number of > components available and M (<= N) of them can be connected together to > form an audio path). For example the path would be like, > FE -> BE_1 -> BE_2 -> ... -> BE_M. > - I am extending dpcm_path_get() for this reason and DAI ops get > called for all connected components. > > [0] https://lkml.org/lkml/2020/8/5/42 > [1] https://lkml.org/lkml/2020/4/30/519 The difference between "-cc" and "card2" is DPCM link detection. "-cc-" will assume all are DPCM link, "card2" will detect both normal-link and DPCM-link via DT. But, I guess new driver 1st version is focus to detecting normal-link and DPCM-link only. This means it is not enough for your case, because I can't full reproduce your board/situation. Maybe you need some extra patch on "card2" which "-cc-" added to soc-xxx.c Thank you for your help !! Best regards --- Kuninori Morimoto
