diff --git a/include/sound/simple_card_utils.h b/include/sound/simple_card_utils.h
index d1f17172dce2..6d69ed2bd7b1 100644
--- a/include/sound/simple_card_utils.h
+++ b/include/sound/simple_card_utils.h
@@ -121,8 +121,7 @@ void asoc_simple_card_parse_convert(struct device *dev,
 				    struct asoc_simple_card_data *data);
 
 int asoc_simple_card_of_parse_routing(struct snd_soc_card *card,
-				      char *prefix,
-				      int optional);
+				      char *prefix);
 int asoc_simple_card_of_parse_widgets(struct snd_soc_card *card,
 				      char *prefix);
 
diff --git a/sound/soc/generic/audio-graph-card.c b/sound/soc/generic/audio-graph-card.c
index 26eb6ff9b9f3..101c7da2df7c 100644
--- a/sound/soc/generic/audio-graph-card.c
+++ b/sound/soc/generic/audio-graph-card.c
@@ -238,7 +238,7 @@ static int asoc_graph_card_parse_of(struct graph_card_data *priv)
 	if (ret < 0)
 		return ret;
 
-	ret = asoc_simple_card_of_parse_routing(card, NULL, 1);
+	ret = asoc_simple_card_of_parse_routing(card, NULL);
 	if (ret < 0)
 		return ret;
 
diff --git a/sound/soc/generic/audio-graph-scu-card.c b/sound/soc/generic/audio-graph-scu-card.c
index 1f754933ea9f..c46947393f80 100644
--- a/sound/soc/generic/audio-graph-scu-card.c
+++ b/sound/soc/generic/audio-graph-scu-card.c
@@ -200,7 +200,7 @@ static int asoc_graph_card_parse_of(struct graph_card_data *priv)
 	 * see simple-card
 	 */
 
-	ret = asoc_simple_card_of_parse_routing(card, NULL, 0);
+	ret = asoc_simple_card_of_parse_routing(card, NULL);
 	if (ret < 0)
 		return ret;
 
diff --git a/sound/soc/generic/simple-card-utils.c b/sound/soc/generic/simple-card-utils.c
index a16373193b56..c69ce1e563cd 100644
--- a/sound/soc/generic/simple-card-utils.c
+++ b/sound/soc/generic/simple-card-utils.c
@@ -417,8 +417,7 @@ int asoc_simple_card_clean_reference(struct snd_soc_card *card)
 EXPORT_SYMBOL_GPL(asoc_simple_card_clean_reference);
 
 int asoc_simple_card_of_parse_routing(struct snd_soc_card *card,
-				      char *prefix,
-				      int optional)
+				      char *prefix)
 {
 	struct device_node *node = card->dev->of_node;
 	char prop[128];
@@ -428,11 +427,8 @@ int asoc_simple_card_of_parse_routing(struct snd_soc_card *card,
 
 	snprintf(prop, sizeof(prop), "%s%s", prefix, "routing");
 
-	if (!of_property_read_bool(node, prop)) {
-		if (optional)
-			return 0;
-		return -EINVAL;
-	}
+	if (!of_property_read_bool(node, prop))
+		return 0;
 
 	return snd_soc_of_parse_audio_routing(card, prop);
 }
diff --git a/sound/soc/generic/simple-card.c b/sound/soc/generic/simple-card.c
index 5a3f59aa4ba5..ff3f9fa9ab5a 100644
--- a/sound/soc/generic/simple-card.c
+++ b/sound/soc/generic/simple-card.c
@@ -300,7 +300,7 @@ static int asoc_simple_card_parse_of(struct simple_card_data *priv)
 	if (ret < 0)
 		goto card_parse_end;
 
-	ret = asoc_simple_card_of_parse_routing(card, PREFIX, 1);
+	ret = asoc_simple_card_of_parse_routing(card, PREFIX);
 	if (ret < 0)
 		goto card_parse_end;
 
diff --git a/sound/soc/generic/simple-scu-card.c b/sound/soc/generic/simple-scu-card.c
index 2d3ef6ebe863..e650143eb532 100644
--- a/sound/soc/generic/simple-scu-card.c
+++ b/sound/soc/generic/simple-scu-card.c
@@ -198,7 +198,7 @@ static int asoc_simple_card_parse_of(struct simple_card_data *priv)
 	if (ret < 0)
 		return ret;
 
-	ret = asoc_simple_card_of_parse_routing(card, PREFIX, 0);
+	ret = asoc_simple_card_of_parse_routing(card, PREFIX);
 	if (ret < 0)
 		return ret;