[alsa-devel] [PATCH 6/6] ASoC: soc-core: add snd_soc_stream_stop()

[Kuninori Morimoto]

From: Kuninori Morimoto <kuninori.morimoto.gx at renesas.com>

When we stop stream, if it was Playback, we might need to care
about power down time. In such case, we need to use delayed work.

We have same implementation for it at soc-pcm.c and soc-compress.c,
but we don't want to have duplicate code.
This patch adds snd_soc_stream_stop(), and share same code.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx at renesas.com>
---
 include/sound/soc.h      |  1 +
 sound/soc/soc-compress.c | 18 +-----------------
 sound/soc/soc-core.c     | 23 +++++++++++++++++++++++
 sound/soc/soc-pcm.c      | 19 +------------------
 4 files changed, 26 insertions(+), 35 deletions(-)

diff --git a/include/sound/soc.h b/include/sound/soc.h
index f0e4f36..575ec11 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -1160,6 +1160,7 @@ struct snd_soc_pcm_runtime {
 	for (; ((--i) >= 0) && ((dai) = rtd->codec_dais[i]);)
 
 void snd_soc_close_delayed_work(struct snd_soc_pcm_runtime *rtd);
+void snd_soc_stream_stop(struct snd_soc_pcm_runtime *rtd, int stream);
 
 /* mixer control */
 struct soc_mixer_control {
diff --git a/sound/soc/soc-compress.c b/sound/soc/soc-compress.c
index 7bd574f..eb19df3 100644
--- a/sound/soc/soc-compress.c
+++ b/sound/soc/soc-compress.c
@@ -240,23 +240,7 @@ static int soc_compr_free(struct snd_compr_stream *cstream)
 	if (cpu_dai->driver->cops && cpu_dai->driver->cops->shutdown)
 		cpu_dai->driver->cops->shutdown(cstream, cpu_dai);
 
-	if (cstream->direction == SND_COMPRESS_PLAYBACK) {
-		if (snd_soc_runtime_ignore_pmdown_time(rtd)) {
-			snd_soc_dapm_stream_event(rtd,
-						  SNDRV_PCM_STREAM_PLAYBACK,
-						  SND_SOC_DAPM_STREAM_STOP);
-		} else {
-			rtd->pop_wait = 1;
-			queue_delayed_work(system_power_efficient_wq,
-					   &rtd->delayed_work,
-					   msecs_to_jiffies(rtd->pmdown_time));
-		}
-	} else {
-		/* capture streams can be powered down now */
-		snd_soc_dapm_stream_event(rtd,
-					  SNDRV_PCM_STREAM_CAPTURE,
-					  SND_SOC_DAPM_STREAM_STOP);
-	}
+	snd_soc_stream_stop(rtd, stream);
 
 	mutex_unlock(&rtd->card->pcm_mutex);
 	return 0;
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index f8ed927..28ebfad 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -387,6 +387,29 @@ void snd_soc_close_delayed_work(struct snd_soc_pcm_runtime *rtd)
 }
 EXPORT_SYMBOL_GPL(snd_soc_close_delayed_work);
 
+void snd_soc_stream_stop(struct snd_soc_pcm_runtime *rtd, int stream)
+{
+	if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
+		if (snd_soc_runtime_ignore_pmdown_time(rtd)) {
+			/* powered down playback stream now */
+			snd_soc_dapm_stream_event(rtd,
+						  SNDRV_PCM_STREAM_PLAYBACK,
+						  SND_SOC_DAPM_STREAM_STOP);
+		} else {
+			/* start delayed pop wq here for playback streams */
+			rtd->pop_wait = 1;
+			queue_delayed_work(system_power_efficient_wq,
+					   &rtd->delayed_work,
+					   msecs_to_jiffies(rtd->pmdown_time));
+		}
+	} else {
+		/* capture streams can be powered down now */
+		snd_soc_dapm_stream_event(rtd, SNDRV_PCM_STREAM_CAPTURE,
+					  SND_SOC_DAPM_STREAM_STOP);
+	}
+}
+EXPORT_SYMBOL_GPL(snd_soc_stream_stop);
+
 static void soc_release_rtd_dev(struct device *dev)
 {
 	/* "dev" means "rtd->dev" */
diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index ad908e0..c9ff50e 100644
--- a/sound/soc/soc-pcm.c
+++ b/sound/soc/soc-pcm.c
@@ -672,24 +672,7 @@ static int soc_pcm_close(struct snd_pcm_substream *substream)
 
 	soc_pcm_components_close(substream, NULL);
 
-	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
-		if (snd_soc_runtime_ignore_pmdown_time(rtd)) {
-			/* powered down playback stream now */
-			snd_soc_dapm_stream_event(rtd,
-						  SNDRV_PCM_STREAM_PLAYBACK,
-						  SND_SOC_DAPM_STREAM_STOP);
-		} else {
-			/* start delayed pop wq here for playback streams */
-			rtd->pop_wait = 1;
-			queue_delayed_work(system_power_efficient_wq,
-					   &rtd->delayed_work,
-					   msecs_to_jiffies(rtd->pmdown_time));
-		}
-	} else {
-		/* capture streams can be powered down now */
-		snd_soc_dapm_stream_event(rtd, SNDRV_PCM_STREAM_CAPTURE,
-					  SND_SOC_DAPM_STREAM_STOP);
-	}
+	snd_soc_stream_stop(rtd, substream->stream);
 
 	mutex_unlock(&rtd->card->pcm_mutex);
 
-- 
2.7.4