[v2,07/12,RESEND] ASoC: SOF: add two helper lookup functions

Commit Message

Guennadi Liakhovetski April 3, 2020, 9:14 a.m. UTC

Add two helper lookup functions for finding a widget by its component
ID and a DAI by a pipeline ID.

Signed-off-by: Guennadi Liakhovetski <[e-mail]>
---
 sound/soc/sof/sof-audio.c | 24 ++++++++++++++++++++++++
 sound/soc/sof/sof-audio.h |  4 ++++
 2 files changed, 28 insertions(+)

Patch

diff --git a/sound/soc/sof/sof-audio.c b/sound/soc/sof/sof-audio.c
index fc4ed2a..b4c5fe2 100644
--- a/sound/soc/sof/sof-audio.c
+++ b/sound/soc/sof/sof-audio.c
@@ -395,6 +395,30 @@  struct snd_sof_dai *snd_sof_find_dai(struct snd_soc_component *scomp,
 	return NULL;
 }
 
+struct snd_sof_widget *snd_sof_find_swidget_id(struct snd_sof_dev *sdev,
+					       unsigned int comp_id)
+{
+	struct snd_sof_widget *swidget;
+
+	list_for_each_entry(swidget, &sdev->widget_list, list)
+		if (swidget->comp_id == comp_id)
+			return swidget;
+
+	return NULL;
+}
+
+struct snd_sof_dai *snd_sof_find_dai_pipe(struct snd_sof_dev *sdev,
+					  unsigned int pipeline_id)
+{
+	struct snd_sof_dai *dai;
+
+	list_for_each_entry(dai, &sdev->dai_list, list)
+		if (dai->pipeline_id == pipeline_id)
+			return dai;
+
+	return NULL;
+}
+
 /*
  * SOF Driver enumeration.
  */
diff --git a/sound/soc/sof/sof-audio.h b/sound/soc/sof/sof-audio.h
index bf65f31a..4880b32 100644
--- a/sound/soc/sof/sof-audio.h
+++ b/sound/soc/sof/sof-audio.h
@@ -190,6 +190,10 @@  struct snd_sof_pcm *snd_sof_find_spcm_comp(struct snd_soc_component *scomp,
 					   int *direction);
 struct snd_sof_pcm *snd_sof_find_spcm_pcm_id(struct snd_soc_component *scomp,
 					     unsigned int pcm_id);
+struct snd_sof_widget *snd_sof_find_swidget_id(struct snd_sof_dev *sdev,
+					       unsigned int comp_id);
+struct snd_sof_dai *snd_sof_find_dai_pipe(struct snd_sof_dev *sdev,
+					  unsigned int pipeline_id);
 void snd_sof_pcm_period_elapsed(struct snd_pcm_substream *substream);
 void snd_sof_pcm_period_elapsed_work(struct work_struct *work);