[PATCH 07/16] ASoC: soc-dai: add snd_soc_dai_trigger()

[Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx>]

From: Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx>

Current ALSA SoC is directly using dai->driver->ops->xxx,
thus, it has deep nested bracket, and it makes code unreadable.
This patch adds new snd_soc_dai_trigger() and use it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx>
---
 include/sound/soc-dai.h |  2 ++
 sound/soc/soc-dai.c     | 12 ++++++++++++
 sound/soc/soc-pcm.c     | 17 ++++++-----------
 3 files changed, 20 insertions(+), 11 deletions(-)

diff --git a/include/sound/soc-dai.h b/include/sound/soc-dai.h
index c7dff6a..72b8e76 100644
--- a/include/sound/soc-dai.h
+++ b/include/sound/soc-dai.h
@@ -156,6 +156,8 @@ void snd_soc_dai_shutdown(struct snd_soc_dai *dai,
 			  struct snd_pcm_substream *substream);
 int snd_soc_dai_prepare(struct snd_soc_dai *dai,
 			struct snd_pcm_substream *substream);
+int snd_soc_dai_trigger(struct snd_soc_dai *dai,
+			struct snd_pcm_substream *substream, int cmd);
 
 struct snd_soc_dai_ops {
 	/*
diff --git a/sound/soc/soc-dai.c b/sound/soc/soc-dai.c
index cb81088..18c447e 100644
--- a/sound/soc/soc-dai.c
+++ b/sound/soc/soc-dai.c
@@ -318,3 +318,15 @@ int snd_soc_dai_prepare(struct snd_soc_dai *dai,
 
 	return ret;
 }
+
+int snd_soc_dai_trigger(struct snd_soc_dai *dai,
+			struct snd_pcm_substream *substream,
+			int cmd)
+{
+	int ret = 0;
+
+	if (dai->driver->ops->trigger)
+		ret = dai->driver->ops->trigger(substream, cmd, dai);
+
+	return ret;
+}
diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index d7611af..a628b08 100644
--- a/sound/soc/soc-pcm.c
+++ b/sound/soc/soc-pcm.c
@@ -1084,12 +1084,9 @@ static int soc_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
 	int i, ret;
 
 	for_each_rtd_codec_dai(rtd, i, codec_dai) {
-		if (codec_dai->driver->ops->trigger) {
-			ret = codec_dai->driver->ops->trigger(substream,
-							      cmd, codec_dai);
-			if (ret < 0)
-				return ret;
-		}
+		ret = snd_soc_dai_trigger(codec_dai, substream, cmd);
+		if (ret < 0)
+			return ret;
 	}
 
 	for_each_rtdcom(rtd, rtdcom) {
@@ -1104,11 +1101,9 @@ static int soc_pcm_trigger(struct snd_pcm_substream *substream, int cmd)
 			return ret;
 	}
 
-	if (cpu_dai->driver->ops->trigger) {
-		ret = cpu_dai->driver->ops->trigger(substream, cmd, cpu_dai);
-		if (ret < 0)
-			return ret;
-	}
+	snd_soc_dai_trigger(cpu_dai, substream, cmd);
+	if (ret < 0)
+		return ret;
 
 	if (rtd->dai_link->ops->trigger) {
 		ret = rtd->dai_link->ops->trigger(substream, cmd);
-- 
2.7.4

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