ASoC: soc-component: add snd_soc_component_open()

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_open() and use it.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Link: https://lore.kernel.org/r/87ftmt5rnx.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
diff --git a/sound/soc/soc-component.c b/sound/soc/soc-component.c
index ac2d7bd..ada46f972 100644
--- a/sound/soc/soc-component.c
+++ b/sound/soc/soc-component.c
@@ -285,3 +285,13 @@ void snd_soc_component_module_put(struct snd_soc_component *component,
 	if (component->driver->module_get_upon_open == !!upon_open)
 		module_put(component->dev->driver->owner);
 }
+
+int snd_soc_component_open(struct snd_soc_component *component,
+			   struct snd_pcm_substream *substream)
+{
+	if (component->driver->ops &&
+	    component->driver->ops->open)
+		return component->driver->ops->open(substream);
+
+	return 0;
+}