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-rw-r--r--include/sound/soc.h1
-rw-r--r--sound/soc/soc-core.c31
2 files changed, 32 insertions, 0 deletions
diff --git a/include/sound/soc.h b/include/sound/soc.h
index 5e3919ffb00c..a0918d159fd3 100644
--- a/include/sound/soc.h
+++ b/include/sound/soc.h
@@ -1331,6 +1331,7 @@ void snd_soc_of_parse_audio_prefix(struct snd_soc_card *card,
int snd_soc_of_parse_audio_routing(struct snd_soc_card *card,
const char *propname);
+int snd_soc_of_parse_aux_devs(struct snd_soc_card *card, const char *propname);
unsigned int snd_soc_of_parse_daifmt(struct device_node *np,
const char *prefix,
struct device_node **bitclkmaster,
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 2fe1b2ec7c8f..bf46f410c8c6 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -2827,6 +2827,37 @@ int snd_soc_of_parse_audio_routing(struct snd_soc_card *card,
}
EXPORT_SYMBOL_GPL(snd_soc_of_parse_audio_routing);
+int snd_soc_of_parse_aux_devs(struct snd_soc_card *card, const char *propname)
+{
+ struct device_node *node = card->dev->of_node;
+ struct snd_soc_aux_dev *aux;
+ int num, i;
+
+ num = of_count_phandle_with_args(node, propname, NULL);
+ if (num == -ENOENT) {
+ return 0;
+ } else if (num < 0) {
+ dev_err(card->dev, "ASOC: Property '%s' could not be read: %d\n",
+ propname, num);
+ return num;
+ }
+
+ aux = devm_kcalloc(card->dev, num, sizeof(*aux), GFP_KERNEL);
+ if (!aux)
+ return -ENOMEM;
+ card->aux_dev = aux;
+ card->num_aux_devs = num;
+
+ for_each_card_pre_auxs(card, i, aux) {
+ aux->dlc.of_node = of_parse_phandle(node, propname, i);
+ if (!aux->dlc.of_node)
+ return -EINVAL;
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(snd_soc_of_parse_aux_devs);
+
unsigned int snd_soc_of_parse_daifmt(struct device_node *np,
const char *prefix,
struct device_node **bitclkmaster,