ASoC: audio-graph: add graph_parse_mclk_fs()

It is parsing mclk_fs at many places, but it should be
same operation. This patch adds graph_parse_mclk_fs()
and parse it.

This patch also renames similar function graph_get_conversion()
to graph_parse_convert().
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/generic/audio-graph-card.c

@@ -196,6 +196,24 @@ static void graph_parse_convert(struct device *dev,
 	of_node_put(node);
 }
 
+static void graph_parse_mclk_fs(struct device_node *top,
+				struct device_node *ep,
+				struct graph_dai_props *props)
+{
+	struct device_node *port	= of_get_parent(ep);
+	struct device_node *ports	= of_get_parent(port);
+	struct device_node *node	= of_graph_get_port_parent(ep);
+
+	of_property_read_u32(top,	"mclk-fs", &props->mclk_fs);
+	of_property_read_u32(ports,	"mclk-fs", &props->mclk_fs);
+	of_property_read_u32(port,	"mclk-fs", &props->mclk_fs);
+	of_property_read_u32(ep,	"mclk-fs", &props->mclk_fs);
+
+	of_node_put(port);
+	of_node_put(ports);
+	of_node_put(node);
+}
+
 static int graph_dai_link_of_dpcm(struct graph_priv *priv,
 				  struct device_node *cpu_ep,
 				  struct device_node *codec_ep,
@@ -226,13 +244,6 @@ static int graph_dai_link_of_dpcm(struct graph_priv *priv,
 
 	dev_dbg(dev, "link_of DPCM (%pOF)\n", ep);
 
-	of_property_read_u32(top,   "mclk-fs", &dai_props->mclk_fs);
-	of_property_read_u32(ports, "mclk-fs", &dai_props->mclk_fs);
-	of_property_read_u32(port,  "mclk-fs", &dai_props->mclk_fs);
-	of_property_read_u32(ep,    "mclk-fs", &dai_props->mclk_fs);
-
-	graph_parse_convert(dev, ep, &dai_props->adata);
-
 	of_node_put(ports);
 	of_node_put(port);
 	of_node_put(node);
@@ -311,6 +322,9 @@ static int graph_dai_link_of_dpcm(struct graph_priv *priv,
 					     "prefix");
 	}
 
+	graph_parse_convert(dev, ep, &dai_props->adata);
+	graph_parse_mclk_fs(top, ep, dai_props);
+
 	asoc_simple_card_canonicalize_platform(dai_link);
 
 	ret = asoc_simple_card_of_parse_tdm(ep, dai);
@@ -339,10 +353,6 @@ static int graph_dai_link_of(struct graph_priv *priv,
 	struct snd_soc_dai_link *dai_link = graph_priv_to_link(priv, li->link);
 	struct graph_dai_props *dai_props = graph_priv_to_props(priv, li->link);
 	struct device_node *top = dev->of_node;
-	struct device_node *cpu_port;
-	struct device_node *cpu_ports;
-	struct device_node *codec_port;
-	struct device_node *codec_ports;
 	struct asoc_simple_dai *cpu_dai;
 	struct asoc_simple_dai *codec_dai;
 	int ret;
@@ -351,11 +361,6 @@ static int graph_dai_link_of(struct graph_priv *priv,
 	if (!li->cpu)
 		return 0;
 
-	cpu_port	= of_get_parent(cpu_ep);
-	cpu_ports	= of_get_parent(cpu_port);
-	codec_port	= of_get_parent(codec_ep);
-	codec_ports	= of_get_parent(codec_port);
-
 	dev_dbg(dev, "link_of (%pOF)\n", cpu_ep);
 
 	li->link++;
@@ -366,17 +371,8 @@ static int graph_dai_link_of(struct graph_priv *priv,
 	dai_props->codec_dai	= &priv->dais[li->dais++];
 
 	/* Factor to mclk, used in hw_params() */
-	of_property_read_u32(top,         "mclk-fs", &dai_props->mclk_fs);
-	of_property_read_u32(cpu_ports,   "mclk-fs", &dai_props->mclk_fs);
-	of_property_read_u32(codec_ports, "mclk-fs", &dai_props->mclk_fs);
-	of_property_read_u32(cpu_port,    "mclk-fs", &dai_props->mclk_fs);
-	of_property_read_u32(codec_port,  "mclk-fs", &dai_props->mclk_fs);
-	of_property_read_u32(cpu_ep,      "mclk-fs", &dai_props->mclk_fs);
-	of_property_read_u32(codec_ep,    "mclk-fs", &dai_props->mclk_fs);
-	of_node_put(cpu_port);
-	of_node_put(cpu_ports);
-	of_node_put(codec_port);
-	of_node_put(codec_ports);
+	graph_parse_mclk_fs(top, cpu_ep,   dai_props);
+	graph_parse_mclk_fs(top, codec_ep, dai_props);
 
 	ret = asoc_simple_card_parse_daifmt(dev, cpu_ep, codec_ep,
 					    NULL, &dai_link->dai_fmt);