ASoC: SOF: ipc4-topology: Enable deep buffer capture

This patch lets a capture PCM to operate with deep buffer
by taking dsp_max_burst_size_in_ms from topology if it is
defined. Earlier the value from topology was omitted for
capture.

If not defined, the maximum burst size for capture is set
similarly as before to one millisecond.

Signed-off-by: Seppo Ingalsuo <[email protected]>

Author: singalsu

sound/soc/sof/ipc4-topology.c

@@ -619,6 +619,7 @@ static int sof_ipc4_widget_setup_pcm(struct snd_sof_widget *swidget)
 	struct sof_ipc4_available_audio_format *available_fmt;
 	struct snd_soc_component *scomp = swidget->scomp;
 	struct sof_ipc4_copier *ipc4_copier;
+	struct snd_sof_pcm_stream *sps;
 	struct snd_sof_pcm *spcm;
 	int node_type = 0;
 	int ret, dir;
@@ -663,24 +664,23 @@ static int sof_ipc4_widget_setup_pcm(struct snd_sof_widget *swidget)
 	if (ret)
 		goto free_available_fmt;
 
-	if (dir == SNDRV_PCM_STREAM_PLAYBACK) {
-		struct snd_sof_pcm_stream *sps = &spcm->stream[dir];
+	sps = &spcm->stream[dir];
+	sof_update_ipc_object(scomp, &sps->dsp_max_burst_size_in_ms,
+			      SOF_COPIER_DEEP_BUFFER_TOKENS,
+			      swidget->tuples,
+			      swidget->num_tuples, sizeof(u32), 1);
 
-		sof_update_ipc_object(scomp, &sps->dsp_max_burst_size_in_ms,
-				      SOF_COPIER_DEEP_BUFFER_TOKENS,
-				      swidget->tuples,
-				      swidget->num_tuples, sizeof(u32), 1);
-		/* Set default DMA buffer size if it is not specified in topology */
-		if (!sps->dsp_max_burst_size_in_ms) {
-			struct snd_sof_widget *pipe_widget = swidget->spipe->pipe_widget;
-			struct sof_ipc4_pipeline *pipeline = pipe_widget->private;
+	/* Set default DMA buffer size if it is not specified in topology */
+	if (!sps->dsp_max_burst_size_in_ms) {
+		struct snd_sof_widget *pipe_widget = swidget->spipe->pipe_widget;
+		struct sof_ipc4_pipeline *pipeline = pipe_widget->private;
 
+		if (dir == SNDRV_PCM_STREAM_PLAYBACK)
 			sps->dsp_max_burst_size_in_ms = pipeline->use_chain_dma ?
 				SOF_IPC4_CHAIN_DMA_BUFFER_SIZE : SOF_IPC4_MIN_DMA_BUFFER_SIZE;
-		}
-	} else {
-		/* Capture data is copied from DSP to host in 1ms bursts */
-		spcm->stream[dir].dsp_max_burst_size_in_ms = 1;
+		else
+			/* Capture data is copied from DSP to host in 1ms bursts */
+			sps->dsp_max_burst_size_in_ms = 1;
 	}
 
 skip_gtw_cfg: