31 Jul
2018
31 Jul
'18
12:19 p.m.
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...