[PATCH 07/13] ASoC: audio-graph-card2: use of_graph_get_next_port()

[Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>]

Now we can use of_graph_get_next_port() for port parsing.
Use it on audio-graph-card2 driver.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
---
 sound/soc/generic/audio-graph-card2.c | 29 ++++++++-------------------
 1 file changed, 8 insertions(+), 21 deletions(-)

diff --git a/sound/soc/generic/audio-graph-card2.c b/sound/soc/generic/audio-graph-card2.c
index 62606e20be9a..59a5db12bb5c 100644
--- a/sound/soc/generic/audio-graph-card2.c
+++ b/sound/soc/generic/audio-graph-card2.c
@@ -339,12 +339,7 @@ static struct device_node *graph_get_next_multi_ep(struct device_node **port)
 	 *	port@1 { rep1 };
 	 * };
 	 */
-	do {
-		*port = of_get_next_child(ports, *port);
-		if (!*port)
-			break;
-	} while (!of_node_name_eq(*port, "port"));
-
+	*port = of_graph_get_next_port(ports, *port);
 	if (*port) {
 		ep  = port_to_endpoint(*port);
 		rep = of_graph_get_remote_endpoint(ep);
@@ -539,7 +534,8 @@ static int graph_parse_node_multi_nm(struct snd_soc_dai_link *dai_link,
 	 */
 	struct device_node *mcpu_ep		= port_to_endpoint(mcpu_port);
 	struct device_node *mcpu_ep_n		= mcpu_ep;
-	struct device_node *mcpu_port_top	= of_get_next_child(of_get_parent(mcpu_port), NULL);
+	struct device_node *mcpu_ports		= of_get_parent(mcpu_port);
+	struct device_node *mcpu_port_top	= of_graph_get_next_port(mcpu_ports, NULL);
 	struct device_node *mcpu_ep_top		= port_to_endpoint(mcpu_port_top);
 	struct device_node *mcodec_ep_top	= of_graph_get_remote_endpoint(mcpu_ep_top);
 	struct device_node *mcodec_port_top	= of_get_parent(mcodec_ep_top);
@@ -572,12 +568,12 @@ static int graph_parse_node_multi_nm(struct snd_soc_dai_link *dai_link,
 			goto mcpu_err;
 
 		codec_idx = 0;
-		mcodec_port_i = of_get_next_child(mcodec_ports, NULL);
+		mcodec_port_i = of_graph_get_next_port(mcodec_ports, NULL);
 		while (1) {
 			if (codec_idx > dai_link->num_codecs)
 				goto mcodec_err;
 
-			mcodec_port_i = of_get_next_child(mcodec_ports, mcodec_port_i);
+			mcodec_port_i = of_graph_get_next_port(mcodec_ports, mcodec_port_i);
 
 			if (!mcodec_port_i)
 				goto mcodec_err;
@@ -967,7 +963,7 @@ int audio_graph2_link_c2c(struct simple_util_priv *priv,
 	of_node_get(lnk);
 	port0 = lnk;
 	ports = of_get_parent(port0);
-	port1 = of_get_next_child(ports, lnk);
+	port1 = of_graph_get_next_port(ports, port0);
 
 	/*
 	 * Card2 can use original Codec2Codec settings if DT has.
@@ -1099,21 +1095,12 @@ static int graph_counter(struct device_node *lnk)
 	 */
 	if (graph_lnk_is_multi(lnk)) {
 		struct device_node *ports = of_get_parent(lnk);
-		struct device_node *port = NULL;
-		int cnt = 0;
 
 		/*
 		 * CPU/Codec = N:M case has many endpoints.
 		 * We can't use of_graph_get_endpoint_count() here
 		 */
-		while(1) {
-			port = of_get_next_child(ports, port);
-			if (!port)
-				break;
-			cnt++;
-		}
-
-		return cnt - 1;
+		return of_graph_get_port_count(ports) - 1;
 	}
 	/*
 	 * Single CPU / Codec
@@ -1197,7 +1184,7 @@ static int graph_count_c2c(struct simple_util_priv *priv,
 {
 	struct device_node *ports = of_get_parent(lnk);
 	struct device_node *port0 = lnk;
-	struct device_node *port1 = of_get_next_child(ports, lnk);
+	struct device_node *port1 = of_graph_get_next_port(ports, port0);
 	struct device_node *ep0 = port_to_endpoint(port0);
 	struct device_node *ep1 = port_to_endpoint(port1);
 	struct device_node *codec0 = of_graph_get_remote_port(ep0);
-- 
2.25.1