ASoC: add snd_soc_lookup_component_by_name helper

Add a helper to help user to get the component by name.

Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>

Author: bardliao

include/sound/soc.h

@@ -465,6 +465,7 @@ struct snd_soc_component *snd_soc_lookup_component_nolocked(struct device *dev,
 							    const char *driver_name);
 struct snd_soc_component *snd_soc_lookup_component(struct device *dev,
 						   const char *driver_name);
+struct snd_soc_component *snd_soc_lookup_component_by_name(const char *component_name);
 
 int soc_new_pcm(struct snd_soc_pcm_runtime *rtd);
 #ifdef CONFIG_SND_SOC_COMPRESS

sound/soc/soc-core.c

@@ -404,6 +404,19 @@ struct snd_soc_component *snd_soc_lookup_component(struct device *dev,
 }
 EXPORT_SYMBOL_GPL(snd_soc_lookup_component);
 
+struct snd_soc_component *snd_soc_lookup_component_by_name(const char *component_name)
+{
+	struct snd_soc_component *component;
+
+	guard(mutex)(&client_mutex);
+	for_each_component(component)
+		if (strstr(component->name, component_name))
+			return component;
+
+	return NULL;
+}
+EXPORT_SYMBOL_GPL(snd_soc_lookup_component_by_name);
+
 struct snd_soc_pcm_runtime
 *snd_soc_get_pcm_runtime(struct snd_soc_card *card,
 			 struct snd_soc_dai_link *dai_link)