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
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 ?
Thank you for your help !!
Best regards --- Renesas Electronics Ph.D. Kuninori Morimoto