[PATCH 12/16] ASoC: soc-dai: add snd_soc_dai_probe()

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

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

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

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx>
---
 include/sound/soc-dai.h |  1 +
 sound/soc/soc-core.c    | 15 +++++++--------
 sound/soc/soc-dai.c     |  7 +++++++
 3 files changed, 15 insertions(+), 8 deletions(-)

diff --git a/include/sound/soc-dai.h b/include/sound/soc-dai.h
index ed78e34..da8d8b8 100644
--- a/include/sound/soc-dai.h
+++ b/include/sound/soc-dai.h
@@ -164,6 +164,7 @@ snd_pcm_sframes_t snd_soc_dai_delay(struct snd_soc_dai *dai,
 				    struct snd_pcm_substream *substream);
 void snd_soc_dai_suspend(struct snd_soc_dai *dai);
 void snd_soc_dai_resume(struct snd_soc_dai *dai);
+int snd_soc_dai_probe(struct snd_soc_dai *dai);
 
 struct snd_soc_dai_ops {
 	/*
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 5c02f90..3e73468 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -1434,18 +1434,17 @@ static int soc_probe_link_components(struct snd_soc_card *card,
 
 static int soc_probe_dai(struct snd_soc_dai *dai, int order)
 {
+	int ret;
+
 	if (dai->probed ||
 	    dai->driver->probe_order != order)
 		return 0;
 
-	if (dai->driver->probe) {
-		int ret = dai->driver->probe(dai);
-
-		if (ret < 0) {
-			dev_err(dai->dev, "ASoC: failed to probe DAI %s: %d\n",
-				dai->name, ret);
-			return ret;
-		}
+	ret = snd_soc_dai_probe(dai);
+	if (ret < 0) {
+		dev_err(dai->dev, "ASoC: failed to probe DAI %s: %d\n",
+			dai->name, ret);
+		return ret;
 	}
 
 	dai->probed = 1;
diff --git a/sound/soc/soc-dai.c b/sound/soc/soc-dai.c
index ddb6f21..55c1fac 100644
--- a/sound/soc/soc-dai.c
+++ b/sound/soc/soc-dai.c
@@ -365,3 +365,10 @@ void snd_soc_dai_resume(struct snd_soc_dai *dai)
 	if (dai->driver->resume)
 		dai->driver->resume(dai);
 }
+
+int snd_soc_dai_probe(struct snd_soc_dai *dai)
+{
+	if (dai->driver->probe)
+		return dai->driver->probe(dai);
+	return 0;
+}
-- 
2.7.4

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