Hi > > On Wed, Oct 23, 2019 at 03:29:49PM +0800, Shengjiu Wang wrote: > > xrun may happen at the end of stream, the > > trigger->fsl_esai_trigger_stop maybe called in the middle of > > fsl_esai_hw_reset, this may cause esai in wrong state after stop, and > > there may be endless xrun interrupt. > > What about fsl_esai_trigger_start? It touches ESAI_xFCR_xFEN bit that is > being checked in the beginning of fsl_esai_hw_reset. > > Could the scenario below be possible also? > > 1) ESAI TX starts > 2) Xrun happens to TX > 3) Starting fsl_esai_hw_reset (enabled[TX] = true; enabled[RX] = false) > 4) ESAI RX starts > 5) Finishing fsl_esai_hw_reset (enabled[RX] is still false) > > Good catch, this may possible. Will update in v2. Best regards Wang shengjiu _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx https://mailman.alsa-project.org/mailman/listinfo/alsa-devel
