ASoC: soc-core: add snd_soc_close_delayed_work()

We need to setup rtd->close_delayed_work_func.
It will be set at snd_soc_dai_compress_new() or soc_new_pcm().
But these setups close_delayed_work() which is same name /
same implemantaion, but different local code.
To reduce duplicate code, this patch moves it as
snd_soc_close_delayed_work() and share same code.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-By: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Link: https://lore.kernel.org/r/8736cot4v2.wl-kuninori.morimoto.gx@renesas.comSigned-off-by: Mark Brown <broonie@kernel.org>

include/sound/soc.h

@@ -1159,6 +1159,7 @@ struct snd_soc_pcm_runtime {
 #define for_each_rtd_codec_dai_rollback(rtd, i, dai)		\
 	for (; ((--i) >= 0) && ((dai) = rtd->codec_dais[i]);)
 
+void snd_soc_close_delayed_work(struct snd_soc_pcm_runtime *rtd);
 
 /* mixer control */
 struct soc_mixer_control {

sound/soc/soc-compress.c

@@ -226,33 +226,6 @@ static int soc_compr_open_fe(struct snd_compr_stream *cstream)
 	return ret;
 }
 
-/*
- * Power down the audio subsystem pmdown_time msecs after close is called.
- * This is to ensure there are no pops or clicks in between any music tracks
- * due to DAPM power cycling.
- */
-static void close_delayed_work(struct snd_soc_pcm_runtime *rtd)
-{
-	struct snd_soc_dai *codec_dai = rtd->codec_dai;
-
-	mutex_lock_nested(&rtd->card->pcm_mutex, rtd->card->pcm_subclass);
-
-	dev_dbg(rtd->dev,
-		"Compress ASoC: pop wq checking: %s status: %s waiting: %s\n",
-		codec_dai->driver->playback.stream_name,
-		codec_dai->playback_active ? "active" : "inactive",
-		rtd->pop_wait ? "yes" : "no");
-
-	/* are we waiting on this codec DAI stream */
-	if (rtd->pop_wait == 1) {
-		rtd->pop_wait = 0;
-		snd_soc_dapm_stream_event(rtd, SNDRV_PCM_STREAM_PLAYBACK,
-					  SND_SOC_DAPM_STREAM_STOP);
-	}
-
-	mutex_unlock(&rtd->card->pcm_mutex);
-}
-
 static int soc_compr_free(struct snd_compr_stream *cstream)
 {
 	struct snd_soc_pcm_runtime *rtd = cstream->private_data;
@@ -941,7 +914,7 @@ int snd_soc_new_compress(struct snd_soc_pcm_runtime *rtd, int num)
 	}
 
 	/* DAPM dai link stream work */
-	rtd->close_delayed_work_func = close_delayed_work;
+	rtd->close_delayed_work_func = snd_soc_close_delayed_work;
 
 	rtd->compr = compr;
 	compr->private_data = rtd;

sound/soc/soc-core.c

@@ -359,6 +359,34 @@ struct snd_soc_pcm_runtime
 }
 EXPORT_SYMBOL_GPL(snd_soc_get_pcm_runtime);
 
+/*
+ * Power down the audio subsystem pmdown_time msecs after close is called.
+ * This is to ensure there are no pops or clicks in between any music tracks
+ * due to DAPM power cycling.
+ */
+void snd_soc_close_delayed_work(struct snd_soc_pcm_runtime *rtd)
+{
+	struct snd_soc_dai *codec_dai = rtd->codec_dai;
+
+	mutex_lock_nested(&rtd->card->pcm_mutex, rtd->card->pcm_subclass);
+
+	dev_dbg(rtd->dev,
+		"ASoC: pop wq checking: %s status: %s waiting: %s\n",
+		codec_dai->driver->playback.stream_name,
+		codec_dai->playback_active ? "active" : "inactive",
+		rtd->pop_wait ? "yes" : "no");
+
+	/* are we waiting on this codec DAI stream */
+	if (rtd->pop_wait == 1) {
+		rtd->pop_wait = 0;
+		snd_soc_dapm_stream_event(rtd, SNDRV_PCM_STREAM_PLAYBACK,
+					  SND_SOC_DAPM_STREAM_STOP);
+	}
+
+	mutex_unlock(&rtd->card->pcm_mutex);
+}
+EXPORT_SYMBOL_GPL(snd_soc_close_delayed_work);
+
 static void soc_release_rtd_dev(struct device *dev)
 {
 	/* "dev" means "rtd->dev" */

sound/soc/soc-pcm.c

@@ -624,32 +624,6 @@ static int soc_pcm_open(struct snd_pcm_substream *substream)
 	return ret;
 }
 
-/*
- * Power down the audio subsystem pmdown_time msecs after close is called.
- * This is to ensure there are no pops or clicks in between any music tracks
- * due to DAPM power cycling.
- */
-static void close_delayed_work(struct snd_soc_pcm_runtime *rtd)
-{
-	struct snd_soc_dai *codec_dai = rtd->codec_dais[0];
-
-	mutex_lock_nested(&rtd->card->pcm_mutex, rtd->card->pcm_subclass);
-
-	dev_dbg(rtd->dev, "ASoC: pop wq checking: %s status: %s waiting: %s\n",
-		 codec_dai->driver->playback.stream_name,
-		 codec_dai->playback_active ? "active" : "inactive",
-		 rtd->pop_wait ? "yes" : "no");
-
-	/* are we waiting on this codec DAI stream */
-	if (rtd->pop_wait == 1) {
-		rtd->pop_wait = 0;
-		snd_soc_dapm_stream_event(rtd, SNDRV_PCM_STREAM_PLAYBACK,
-					  SND_SOC_DAPM_STREAM_STOP);
-	}
-
-	mutex_unlock(&rtd->card->pcm_mutex);
-}
-
 static void codec2codec_close_delayed_work(struct snd_soc_pcm_runtime *rtd)
 {
 	/*
@@ -2956,7 +2930,7 @@ int soc_new_pcm(struct snd_soc_pcm_runtime *rtd, int num)
 	if (rtd->dai_link->params)
 		rtd->close_delayed_work_func = codec2codec_close_delayed_work;
 	else
-		rtd->close_delayed_work_func = close_delayed_work;
+		rtd->close_delayed_work_func = snd_soc_close_delayed_work;
 
 	pcm->nonatomic = rtd->dai_link->nonatomic;
 	rtd->pcm = pcm;