On Mon 13 May 2024 at 23:42, Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx> wrote: > Hi Jerome > > Thank you for your reply > >> However, I'm a bit confused. If it is handled automatically by the CPUs >> and Codecs settings, does it mean dpcm_playback/capture flags are >> no-ops from now on ? > > Yes. > dpcm_playback/capture flag itself will be exist for a while, but it will be > removed soon (v6.11 ? v6.12 ? not yet fixed). > > Some driver might is using dpcm_xxx flag as limitation of direction. For > example HW can use both playback/capture, but driver want to use playback > only, in this case, driver might have dpcm_playback flag only. > > In this case, driver authoer need to update to use playback_only flag > instead. [1/3] patch will indicate warning about it, for a while. > > >> Should I update my card drivers to ditch those flags completely ? > > If the driver is using dpcm_xxx flag as limitation of direction, > driver author need to update to use xxx_only flag. > If the driver have no such flag miss, I will remove all dpcm_xxx flags > when end of its support. > Of course we can avoid extra problem if each driver author remove/update > it by themself, instead of me ;P Makes sense. I'll check your v2 and prepare the update of the related card driver > >> May I still disable a direction on a link from the card driver, like in >> the case I described above, when a TDM link has no slots for a direction ? > > For example, in case of CPU can handle both playback/capture, and Codec > handles playback only, it will be playback only automatically, no Card > settings is needed. > > If both CPU/Codec can handle playback/capture, but you want to enable > playback only, you can use playback_only flag. > > Is it help you ? > Path forward is clear. Thanks a lot. > > > Thank you for your help !! > > Best regards > --- > Renesas Electronics > Ph.D. Kuninori Morimoto -- Jerome
