ASoC: ops: Export snd_soc_control_matches()

This helper is useful for drivers that want to do their own control
lookups and matching as part of more complex logic than the existing
operations.

Signed-off-by: Hector Martin <marcan@marcan.st>

Author: marcan

include/sound/soc.h

@@ -575,6 +575,8 @@ int snd_soc_get_volsw_sx(struct snd_kcontrol *kcontrol,
 	struct snd_ctl_elem_value *ucontrol);
 int snd_soc_put_volsw_sx(struct snd_kcontrol *kcontrol,
 	struct snd_ctl_elem_value *ucontrol);
+bool snd_soc_control_matches(struct snd_kcontrol *kcontrol,
+	const char *pattern);
 int snd_soc_limit_volume(struct snd_soc_card *card,
 	const char *name, int max);
 int snd_soc_deactivate_kctl(struct snd_soc_card *card,

sound/soc/soc-ops.c

@@ -445,7 +445,7 @@ int snd_soc_put_volsw_sx(struct snd_kcontrol *kcontrol,
 }
 EXPORT_SYMBOL_GPL(snd_soc_put_volsw_sx);
 
-static bool soc_control_matches(struct snd_kcontrol *kctl,
+bool snd_soc_control_matches(struct snd_kcontrol *kctl,
 	const char *pattern)
 {
 	const char *name = kctl->id.name;
@@ -467,6 +467,7 @@ static bool soc_control_matches(struct snd_kcontrol *kctl,
 
 	return !strcmp(name, pattern);
 }
+EXPORT_SYMBOL_GPL(snd_soc_control_matches);
 
 static int snd_soc_clip_to_platform_max(struct snd_kcontrol *kctl)
 {
@@ -534,7 +535,7 @@ int snd_soc_limit_volume(struct snd_soc_card *card, const char *name, int max)
 		return -EINVAL;
 
 	list_for_each_entry(kctl, &card->snd_card->controls, list) {
-		if (!soc_control_matches(kctl, name))
+		if (!snd_soc_control_matches(kctl, name))
 			continue;
 
 		ret = soc_limit_volume(kctl, max);
@@ -572,7 +573,7 @@ int snd_soc_deactivate_kctl(struct snd_soc_card *card,
 		return -EINVAL;
 
 	list_for_each_entry(kctl, &card->snd_card->controls, list) {
-		if (!soc_control_matches(kctl, name))
+		if (!snd_soc_control_matches(kctl, name))
 			continue;
 
 		ret = snd_ctl_activate_id(card->snd_card, &kctl->id, active);
@@ -642,7 +643,7 @@ int snd_soc_set_enum_kctl(struct snd_soc_card *card,
 		return -EINVAL;
 
 	list_for_each_entry(kctl, &card->snd_card->controls, list) {
-		if (!soc_control_matches(kctl, name))
+		if (!snd_soc_control_matches(kctl, name))
 			continue;
 
 		ret = soc_set_enum_kctl(kctl, value);