Merge branch 'topic/of-name' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into asoc-rcar

1 files changed, 20 insertions, 0 deletions

diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 3a4a5c0e3f97..fd15d5418647 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -3303,6 +3303,26 @@ int snd_soc_of_parse_tdm_slot(struct device_node *np,
 }
 EXPORT_SYMBOL_GPL(snd_soc_of_parse_tdm_slot);
 
+void snd_soc_of_parse_audio_prefix(struct snd_soc_card *card,
+				   struct snd_soc_codec_conf *codec_conf,
+				   struct device_node *of_node,
+				   const char *propname)
+{
+	struct device_node *np = card->dev->of_node;
+	const char *str;
+	int ret;
+
+	ret = of_property_read_string(np, propname, &str);
+	if (ret < 0) {
+		/* no prefix is not error */
+		return;
+	}
+
+	codec_conf->of_node	= of_node;
+	codec_conf->name_prefix	= str;
+}
+EXPORT_SYMBOL_GPL(snd_soc_of_parse_audio_prefix);
+
 int snd_soc_of_parse_audio_routing(struct snd_soc_card *card,
 				   const char *propname)
 {