commit 08e837dd9e39bd3e25b1fa1a13f6ba44040e3f0d
author Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Fri Jul 26 13:51:17 2019 +0900
committer Mark Brown <broonie@kernel.org> Mon Aug 05 16:21:42 2019 +0100
tree 7a956b718eb4c34d7b349cbe31745a4e0eeadc74
parent e40fadbcef583808c11d2e86b8ac1c652731468e

ASoC: soc-component: add snd_soc_component_probe()

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@renesas.com>
Link: https://lore.kernel.org/r/8736it5rlt.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>

include/sound/soc-component.h

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 */

sound/soc/soc-component.c

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;
+}

sound/soc/soc-core.c

diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index ea93edd..6a422dd 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -1282,13 +1282,11 @@ 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,