ASoC: SOF: ipc4-topology: Remove the skip_during_fe_trigger flag

Now that all widgets/routes/pipelines are setup, triggered and freed in
the BE DAI ops, we can reuse the be_pipeline flag in struct
snd_sof_pipeline to skip triggering the BE pipelines in the PCM trigger.
So remove the skip_during_fe_trigger flag from struct sof_ipc4_pipeline.

Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>

Author: ranj063

sound/soc/sof/intel/hda-dai-ops.c

@@ -126,19 +126,6 @@ static struct hdac_ext_stream *hda_ipc4_get_hext_stream(struct snd_sof_dev *sdev
 							struct snd_soc_dai *cpu_dai,
 							struct snd_pcm_substream *substream)
 {
-	struct snd_sof_widget *pipe_widget;
-	struct sof_ipc4_pipeline *pipeline;
-	struct snd_sof_widget *swidget;
-	struct snd_soc_dapm_widget *w;
-
-	w = snd_soc_dai_get_widget(cpu_dai, substream->stream);
-	swidget = w->dobj.private;
-	pipe_widget = swidget->spipe->pipe_widget;
-	pipeline = pipe_widget->private;
-
-	/* mark pipeline so that it can be skipped during FE trigger */
-	pipeline->skip_during_fe_trigger = true;
-
 	return snd_soc_dai_get_dma_data(cpu_dai, substream);
 }
 

sound/soc/sof/ipc4-pcm.c

@@ -136,9 +136,8 @@ sof_ipc4_add_pipeline_to_trigger_list(struct snd_sof_dev *sdev, int state,
 				      s8 *pipe_priority)
 {
 	struct snd_sof_widget *pipe_widget = spipe->pipe_widget;
-	struct sof_ipc4_pipeline *pipeline = pipe_widget->private;
 
-	if (pipeline->skip_during_fe_trigger)
+	if (spipe->be_managed_pipeline)
 		return;
 
 	switch (state) {
@@ -177,7 +176,7 @@ sof_ipc4_update_pipeline_state(struct snd_sof_dev *sdev, int state, int cmd,
 	struct sof_ipc4_pipeline *pipeline = pipe_widget->private;
 	int i;
 
-	if (pipeline->skip_during_fe_trigger)
+	if (spipe->be_managed_pipeline)
 		return;
 
 	/* set state for pipeline if it was just triggered */
@@ -431,10 +430,9 @@ static int sof_ipc4_trigger_pipelines(struct snd_soc_component *component,
 	 * IPC4 requires pipelines to be triggered in order starting at the sink and
 	 * walking all the way to the source. So traverse the pipeline_list in the order
 	 * sink->source when starting PCM's and in the reverse order to pause/stop PCM's.
-	 * Skip the pipelines that have their skip_during_fe_trigger flag set. If there is a fork
-	 * in the pipeline, the order of triggering between the left/right paths will be
-	 * indeterministic. But the sink->source trigger order sink->source would still be
-	 * guaranteed for each fork independently.
+	 * Skip the backend pipelines. If there is a fork in the pipeline, the order of triggering
+	 * between the left/right paths will be indeterministic. But the sink->source trigger
+	 * order sink->source would still be guaranteed for each fork independently.
 	 */
 	if (state == SOF_IPC4_PIPE_RUNNING || state == SOF_IPC4_PIPE_RESET)
 		for (i = pipeline_list->count - 1; i >= 0; i--) {

sound/soc/sof/ipc4-topology.h

@@ -129,7 +129,6 @@ struct sof_ipc4_copier_config_set_sink_format {
  * @state: Pipeline state
  * @use_chain_dma: flag to indicate if the firmware shall use chained DMA
  * @msg: message structure for pipeline
- * @skip_during_fe_trigger: skip triggering this pipeline during the FE DAI trigger
  */
 struct sof_ipc4_pipeline {
 	uint32_t priority;
@@ -139,7 +138,6 @@ struct sof_ipc4_pipeline {
 	int state;
 	bool use_chain_dma;
 	struct sof_ipc4_msg msg;
-	bool skip_during_fe_trigger;
 };
 
 /**