[alsa-devel] [PATCH v2 10/29] ASoC: soc-component: add snd_soc_component_hw_params()

[Kuninori Morimoto]

From: Kuninori Morimoto <kuninori.morimoto.gx at renesas.com>

Current ALSA SoC is directly using component->driver->ops->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_hw_params() and use it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx at renesas.com>
---
v1 -> v2

	- no change

 include/sound/soc-component.h |  3 +++
 sound/soc/soc-component.c     | 11 +++++++++++
 sound/soc/soc-pcm.c           |  6 +-----
 3 files changed, 15 insertions(+), 5 deletions(-)

diff --git a/include/sound/soc-component.h b/include/sound/soc-component.h
index ff82330..778a6e7 100644
--- a/include/sound/soc-component.h
+++ b/include/sound/soc-component.h
@@ -345,5 +345,8 @@ int snd_soc_component_close(struct snd_soc_component *component,
 			    struct snd_pcm_substream *substream);
 int snd_soc_component_prepare(struct snd_soc_component *component,
 			      struct snd_pcm_substream *substream);
+int snd_soc_component_hw_params(struct snd_soc_component *component,
+				struct snd_pcm_substream *substream,
+				struct snd_pcm_hw_params *params);
 
 #endif /* __SOC_COMPONENT_H */
diff --git a/sound/soc/soc-component.c b/sound/soc/soc-component.c
index 733d713..7b64563 100644
--- a/sound/soc/soc-component.c
+++ b/sound/soc/soc-component.c
@@ -315,3 +315,14 @@ int snd_soc_component_prepare(struct snd_soc_component *component,
 
 	return 0;
 }
+
+int snd_soc_component_hw_params(struct snd_soc_component *component,
+				struct snd_pcm_substream *substream,
+				struct snd_pcm_hw_params *params)
+{
+	if (component->driver->ops &&
+	    component->driver->ops->hw_params)
+		return component->driver->ops->hw_params(substream, params);
+
+	return 0;
+}
diff --git a/sound/soc/soc-pcm.c b/sound/soc/soc-pcm.c
index f451607..3ba458e 100644
--- a/sound/soc/soc-pcm.c
+++ b/sound/soc/soc-pcm.c
@@ -941,11 +941,7 @@ static int soc_pcm_hw_params(struct snd_pcm_substream *substream,
 	for_each_rtdcom(rtd, rtdcom) {
 		component = rtdcom->component;
 
-		if (!component->driver->ops ||
-		    !component->driver->ops->hw_params)
-			continue;
-
-		ret = component->driver->ops->hw_params(substream, params);
+		ret = snd_soc_component_hw_params(component, substream, params);
 		if (ret < 0) {
 			dev_err(component->dev,
 				"ASoC: %s hw params failed: %d\n",
-- 
2.7.4