Messages in this thread | | | Date | Tue, 31 Jul 2018 12:32:59 +0200 | From | Takashi Iwai <> | Subject | Re: [alsa-devel] [PATCH] ASoC: soc-pcm: Use delay set in pointer function |
| |
On Tue, 31 Jul 2018 12:19:43 +0200, Mark Brown wrote: > > On Tue, Jul 31, 2018 at 11:25:11AM +0200, Takashi Iwai wrote: > > > It's not necessary that all CPU dais provide the pointer callback. > > My suggestion is that, if CPU dai *wants* to provide the base delay, > > it must be tied with the position value, hence it should provide the > > pointer callback. If CPU dai has a pointer callback, > > snd_soc_pcm_pointer() skips the component pointer callback but uses > > CPU dai pointer callback instead. > > However since it's not supposed to be providing any DMA a CPU DAI really > shouldn't be doing this...
Well, if so, the CPU dai also cannot get the exact base delay corresponding to the reported position, either, no?
Takashi
| |