[PATCH 04/49] ASoC: simple-card: platform also uses asoc_simple_card_sub_parse_of()

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From: Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx>

In current simple-card, platform is handled as special case,
but, the code is not readable.
This patch makes platform to use asoc_simple_card_sub_parse_of()

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx>
---
 sound/soc/generic/simple-card.c | 31 +++++++++++++++++++------------
 1 file changed, 19 insertions(+), 12 deletions(-)

diff --git a/sound/soc/generic/simple-card.c b/sound/soc/generic/simple-card.c
index a542b71..f9fc686 100644
--- a/sound/soc/generic/simple-card.c
+++ b/sound/soc/generic/simple-card.c
@@ -221,6 +221,9 @@ asoc_simple_card_sub_parse_of(struct device_node *np,
 	u32 val;
 	int ret;
 
+	if (!np)
+		return 0;
+
 	/*
 	 * Get node via "sound-dai = <&phandle port>"
 	 * it will be used as xxx_of_node on soc_bind_dai_link()
@@ -236,9 +239,14 @@ asoc_simple_card_sub_parse_of(struct device_node *np,
 		*args_count = args.args_count;
 
 	/* Get dai->name */
-	ret = snd_soc_of_get_dai_name(np, name);
-	if (ret < 0)
-		return ret;
+	if (name) {
+		ret = snd_soc_of_get_dai_name(np, name);
+		if (ret < 0)
+			return ret;
+	}
+
+	if (!dai)
+		return 0;
 
 	/* Parse TDM slot */
 	ret = snd_soc_of_parse_tdm_slot(np, &dai->tx_slot_mask,
@@ -372,21 +380,20 @@ static int asoc_simple_card_dai_link_of(struct device_node *node,
 	if (ret < 0)
 		goto dai_link_of_err;
 
+	ret = asoc_simple_card_sub_parse_of(plat, NULL,
+					    &dai_link->platform_of_node,
+					    NULL, NULL);
+	if (ret < 0)
+		goto dai_link_of_err;
+
 	if (!dai_link->cpu_dai_name || !dai_link->codec_dai_name) {
 		ret = -EINVAL;
 		goto dai_link_of_err;
 	}
 
-	if (plat) {
-		struct of_phandle_args args;
-
-		ret = of_parse_phandle_with_args(plat, "sound-dai",
-						 "#sound-dai-cells", 0, &args);
-		dai_link->platform_of_node = args.np;
-	} else {
-		/* Assumes platform == cpu */
+	/* Assumes platform == cpu */
+	if (!dai_link->platform_of_node)
 		dai_link->platform_of_node = dai_link->cpu_of_node;
-	}
 
 	/* DAI link name is created from CPU/CODEC dai name */
 	name = devm_kzalloc(dev,
-- 
1.9.1

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