Hi Pierre-Louis, Mark again > I think same situation can be happen not only DPCM, but normal connection, > too ? And my personally want to have validation check as much as possible, > and automatically validation without Card/rtd flags. > > In case of ignoring Codec check on DPCM, it allows unexpected direction, > I think. For example if it is not using dummy DAI, and in case of CPU can > playback/capture, Codec can playback, and user expect playback only, > in this case unexpected "capture" will be available. He need to add > playback_only flag, but it is not good for me. This patch-set has big effect to each vender, so let use step-by-step approach for safety. I will remove Codec check from DPCM on next v4. But it is our one of problems to be solved, IMO. I will add mark there to indicate it when we remove dpcm_xxx flag. Thank you for your help !! Best regards --- Renesas Electronics Ph.D. Kuninori Morimoto