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ASoC: SOF: ipc4: change trigger order for chain DMA #4798

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ASoC: SOF: ipc4: change trigger order for chain DMA #4798

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23 changes: 21 additions & 2 deletions sound/soc/sof/ipc4-pcm.c
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Original file line number Diff line number Diff line change
Expand Up @@ -614,9 +614,28 @@ static int sof_ipc4_pcm_dai_link_fixup(struct snd_soc_pcm_runtime *rtd,
struct snd_sof_widget *pipe_widget = swidget->spipe->pipe_widget;
struct sof_ipc4_pipeline *pipeline = pipe_widget->private;

/* Chain DMA does not use copiers, so no fixup needed */
if (pipeline->use_chain_dma)
if (pipeline->use_chain_dma) {
struct snd_soc_dpcm *dpcm;
int dir2;

/*
* BE (host DMA stream) must be stopped first
* as the chain DMA IPCs sent by FE trigger, will
* require host DMA to be stopped.
*/

rtd->dai_link->trigger[dir] = SND_SOC_DPCM_TRIGGER_PRE;

for_each_dpcm_fe(rtd, dir2, dpcm) {
struct snd_soc_pcm_runtime *fe = dpcm->fe;

fe->dai_link->trigger[dir2] =
SND_SOC_DPCM_TRIGGER_PRE;
}

/* Chain DMA does not use copiers, so no fixup needed */
return 0;
}

if (dir == SNDRV_PCM_STREAM_PLAYBACK) {
if (sof_ipc4_copier_is_single_format(sdev,
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