Hi Mark, >-----Original Message----- >From: Mark Brown [mailto:broonie@xxxxxxxxxx] >Sent: Sunday, May 12, 2019 4:08 PM >To: Yang, Libin <libin.yang@xxxxxxxxx> >Cc: Takashi Iwai <tiwai@xxxxxxx>; Ranjani Sridharan ><ranjani.sridharan@xxxxxxxxxxxxxxx>; alsa-devel@xxxxxxxxxxxxxxxx; Sridharan, >Ranjani <ranjani.sridharan@xxxxxxxxx>; pierre-louis.bossart@xxxxxxxxxxxxxxx; >Wang, Rander <rander.wang@xxxxxxxxx> >Subject: Re: [PATCH V2] ASoC: soc-pcm: BE dai needs prepare >when pause release after resume > >On Thu, May 09, 2019 at 02:30:39AM +0000, Yang, Libin wrote: > >> I think this may be a ASoC FE-BE defect. >> In this case, ASoC will call FE dai prepare(), but it will not call BE >> dai prepare() because of the judgement. This is why I made the patch. > >If it's calling only the front end but not the back end that definitely sounds like >DPCM is causing trouble again. Yes. This is caused by dpcm_be_dai_prepare(). dpcm_be_dai_prepare() should call BE dai prepare() in the case of pause release after S3. But as the be->dpcm[stream].state is SND_SOC_DPCM_STATE_PAUSED, it will not call BE dai prepare. Regards, Libin _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx https://mailman.alsa-project.org/mailman/listinfo/alsa-devel
