[PATCH v2 16/29] ASoC: soc-component: add snd_soc_component_probe()

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

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

Current ALSA SoC is directly using component->driver->xxx,
thus, it is deep nested, and makes code difficult to read,
and is not good for encapsulation.
This patch adds new snd_soc_component_probe() and use it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx>
---
v1 -> v2

	- add white space before return

 include/sound/soc-component.h |  1 +
 sound/soc/soc-component.c     |  8 ++++++++
 sound/soc/soc-core.c          | 12 +++++-------
 3 files changed, 14 insertions(+), 7 deletions(-)

diff --git a/include/sound/soc-component.h b/include/sound/soc-component.h
index 9600dc4..34e774e 100644
--- a/include/sound/soc-component.h
+++ b/include/sound/soc-component.h
@@ -356,5 +356,6 @@ int snd_soc_component_trigger(struct snd_soc_component *component,
 void snd_soc_component_suspend(struct snd_soc_component *component);
 void snd_soc_component_resume(struct snd_soc_component *component);
 int snd_soc_component_is_suspended(struct snd_soc_component *component);
+int snd_soc_component_probe(struct snd_soc_component *component);
 
 #endif /* __SOC_COMPONENT_H */
diff --git a/sound/soc/soc-component.c b/sound/soc/soc-component.c
index 0a9ca84..b2bfc03 100644
--- a/sound/soc/soc-component.c
+++ b/sound/soc/soc-component.c
@@ -366,3 +366,11 @@ int snd_soc_component_is_suspended(struct snd_soc_component *component)
 {
 	return component->suspended;
 }
+
+int snd_soc_component_probe(struct snd_soc_component *component)
+{
+	if (component->driver->probe)
+		return component->driver->probe(component);
+
+	return 0;
+}
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 9b599f6b..6f3dea4 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -1323,13 +1323,11 @@ static int soc_probe_component(struct snd_soc_card *card,
 		}
 	}
 
-	if (component->driver->probe) {
-		ret = component->driver->probe(component);
-		if (ret < 0) {
-			dev_err(component->dev,
-				"ASoC: failed to probe component %d\n", ret);
-			goto err_probe;
-		}
+	ret = snd_soc_component_probe(component);
+	if (ret < 0) {
+		dev_err(component->dev,
+			"ASoC: failed to probe component %d\n", ret);
+		goto err_probe;
 	}
 	WARN(dapm->idle_bias_off &&
 	     dapm->bias_level != SND_SOC_BIAS_OFF,
-- 
2.7.4

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