ASoC: soc-component: add snd_soc_component_init()

we wantn't to directly access to component related parameter
as much as possible to keep encapsulation.
This patch adds snd_soc_component_init() for it.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Link: https://lore.kernel.org/r/87img7w8x2.wl-kuninori.morimoto.gx@renesas.comSigned-off-by: Mark Brown <broonie@kernel.org>

include/sound/soc-component.h

@@ -327,6 +327,9 @@ static inline int snd_soc_component_cache_sync(
 int snd_soc_component_initialize(struct snd_soc_component *component,
 				 const struct snd_soc_component_driver *driver,
 				 struct device *dev, const char *name);
+void snd_soc_component_set_aux(struct snd_soc_component *component,
+			       struct snd_soc_aux_dev *aux);
+int snd_soc_component_init(struct snd_soc_component *component);
 
 /* component IO */
 int snd_soc_component_read(struct snd_soc_component *component,

sound/soc/soc-component.c

@@ -46,6 +46,22 @@ int snd_soc_component_initialize(struct snd_soc_component *component,
 	return 0;
 }
 
+void snd_soc_component_set_aux(struct snd_soc_component *component,
+			       struct snd_soc_aux_dev *aux)
+{
+	component->init = (aux) ? aux->init : NULL;
+}
+
+int snd_soc_component_init(struct snd_soc_component *component)
+{
+	int ret = 0;
+
+	if (component->init)
+		ret = component->init(component);
+
+	return soc_component_ret(component, ret);
+}
+
 /**
  * snd_soc_component_set_sysclk - configure COMPONENT system or master clock.
  * @component: COMPONENT

sound/soc/soc-core.c

@@ -1208,15 +1208,14 @@ static int soc_probe_component(struct snd_soc_card *card,
 	     component->name);
 	probed = 1;
 
-	/* machine specific init */
-	if (component->init) {
-		ret = component->init(component);
-		if (ret < 0) {
-			dev_err(component->dev,
-				"Failed to do machine specific init %d\n", ret);
+	/*
+	 * machine specific init
+	 * see
+	 *	snd_soc_component_set_aux()
+	 */
+	ret = snd_soc_component_init(component);
+	if (ret < 0)
 		goto err_probe;
-		}
-	}
 
 	ret = snd_soc_add_component_controls(component,
 					     component->driver->controls,
@@ -1330,7 +1329,8 @@ static void soc_unbind_aux_dev(struct snd_soc_card *card)
 	struct snd_soc_component *component, *_component;
 
 	for_each_card_auxs_safe(card, component, _component) {
-		component->init = NULL;
+		/* for snd_soc_component_init() */
+		snd_soc_component_set_aux(component, NULL);
 		list_del(&component->card_aux_list);
 	}
 }
@@ -1347,7 +1347,8 @@ static int soc_bind_aux_dev(struct snd_soc_card *card)
 		if (!component)
 			return -EPROBE_DEFER;
 
-		component->init = aux->init;
+		/* for snd_soc_component_init() */
+		snd_soc_component_set_aux(component, aux);
 		/* see for_each_card_auxs */
 		list_add(&component->card_aux_list, &card->aux_comp_list);
 	}