ASoC: rsrc-card: rename rsrc-card to simple-scu-card phase2

rsrc-card which is using DPCM feature was created for Renesas sound.
But not only Renesas, but many SoC can use this driver, because
it is based on simple-card driver.
To use it as more open driver, rsrc-card will be renamed to
simple-scu-card. In order to easy patch review, as 2nd step,
this patch adds new compatible "simple-scu-audio-card";

rcar-card used specific property, not "simple-audio-card",
but it should be now. Actually, rsrc-card is upstreamed driver,
but noone is using it on upstream. The user is only local,
and it is only me. Thus, there is no compatible break by this patch.
This patch uses "simple-audio-card" prefix.
And it removes rcar-card specifix compatible too.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

Documentation/devicetree/bindings/sound/renesas,rsrc-card.txt

-Renesas Sampling Rate Convert Sound Card:
+ASoC simple SCU Sound Card
 
-Renesas Sampling Rate Convert Sound Card specifies audio DAI connections of SoC <-> codec.
+Simple-Card specifies audio DAI connections of SoC <-> codec.
 
 Required properties:
 
-- compatible				: "renesas,rsrc-card"
+- compatible				: "simple-scu-audio-card"
+					  "renesas,rsrc-card"
 
 Optional properties:
 
-- card_name				: User specified audio sound card name, one string
+- simple-audio-card,name		: User specified audio sound card name, one string
 					  property.
-- cpu					: CPU   sub-node
-- codec					: CODEC sub-node
+- simple-audio-card,cpu			: CPU   sub-node
+- simple-audio-card,codec		: CODEC sub-node
 
 Optional subnode properties:
 
-- format				: CPU/CODEC common audio format.
+- simple-audio-card,format		: CPU/CODEC common audio format.
 					  "i2s", "right_j", "left_j" , "dsp_a"
 					  "dsp_b", "ac97", "pdm", "msb", "lsb"
-- frame-master				: Indicates dai-link frame master.
+- simple-audio-card,frame-master	: Indicates dai-link frame master.
 					  phandle to a cpu or codec subnode.
-- bitclock-master			: Indicates dai-link bit clock master.
+- simple-audio-card,bitclock-master	: Indicates dai-link bit clock master.
 					  phandle to a cpu or codec subnode.
-- bitclock-inversion			: bool property. Add this if the
+- simple-audio-card,bitclock-inversion	: bool property. Add this if the
 					  dai-link uses bit clock inversion.
-- frame-inversion			: bool property. Add this if the
+- simple-audio-card,frame-inversion	: bool property. Add this if the
 					  dai-link uses frame clock inversion.
-- convert-rate				: platform specified sampling rate convert
-- convert-channels			: platform specified converted channel size (2 - 8 ch)
-- audio-prefix				: see audio-routing
-- audio-routing				: A list of the connections between audio components.
+- simple-audio-card,convert-rate	: platform specified sampling rate convert
+- simple-audio-card,convert-channels	: platform specified converted channel size (2 - 8 ch)
+- simple-audio-card,prefix		: see audio-routing
+- simple-audio-card,routing		: A list of the connections between audio components.
 					  Each entry is a pair of strings, the first being the connection's sink,
 					  the second being the connection's source. Valid names for sources.
 					  use audio-prefix if some components is using same sink/sources naming.
@@ -54,18 +55,25 @@ Optional CPU/CODEC subnodes properties:
 Example
 
 sound {
-	compatible = "renesas,rsrc-card,lager";
+	compatible = "simple-scu-audio-card";
 
-	card-name = "rsnd-ak4643";
-	format = "left_j";
-	bitclock-master = <&sndcodec>;
-	frame-master = <&sndcodec>;
+	simple-audio-card,name = "rsnd-ak4643";
+	simple-audio-card,format = "left_j";
+	simple-audio-card,format = "left_j";
+	simple-audio-card,bitclock-master = <&sndcodec>;
+	simple-audio-card,frame-master = <&sndcodec>;
 
-	sndcpu: cpu {
+	simple-audio-card,convert-rate = <48000>; /* see audio_clk_a */
+
+	simple-audio-card,prefix = "ak4642";
+	simple-audio-card,routing = "ak4642 Playback", "DAI0 Playback",
+			"DAI0 Capture", "ak4642 Capture";
+
+	sndcpu: simple-audio-card,cpu {
 		sound-dai = <&rcar_sound>;
 	};
 
-	sndcodec: codec {
+	sndcodec: simple-audio-card,codec {
 		sound-dai = <&ak4643>;
 		system-clock-frequency = <11289600>;
 	};

sound/soc/sh/rcar/rsrc-card.c

@@ -30,6 +30,7 @@ struct asoc_simple_card_of_data {
 
 static const struct of_device_id asoc_simple_card_of_match[] = {
 	{ .compatible = "renesas,rsrc-card", },
+	{ .compatible = "simple-scu-audio-card", },
 	{},
 };
 MODULE_DEVICE_TABLE(of, asoc_simple_card_of_match);
@@ -51,6 +52,7 @@ struct asoc_simple_card_priv {
 
 #define DAI	"sound-dai"
 #define CELL	"#sound-dai-cells"
+#define PREFIX	"simple-audio-card,"
 
 static int asoc_simple_card_startup(struct snd_pcm_substream *substream)
 {
@@ -161,10 +163,6 @@ static int asoc_simple_card_parse_links(struct device_node *np,
 
 		asoc_simple_card_canonicalize_cpu(dai_link, is_single_links);
 	} else {
-		const struct asoc_simple_card_of_data *of_data;
-
-		of_data = of_device_get_match_data(dev);
-
 		/* FE is dummy */
 		dai_link->cpu_of_node		= NULL;
 		dai_link->cpu_dai_name		= "snd-soc-dummy-dai";
@@ -188,16 +186,10 @@ static int asoc_simple_card_parse_links(struct device_node *np,
 		if (ret < 0)
 			return ret;
 
-		/* additional name prefix */
-		if (of_data) {
-			priv->codec_conf.of_node = dai_link->codec_of_node;
-			priv->codec_conf.name_prefix = of_data->prefix;
-		} else {
-			snd_soc_of_parse_audio_prefix(&priv->snd_card,
-						      &priv->codec_conf,
-						      dai_link->codec_of_node,
-						      "audio-prefix");
-		}
+		snd_soc_of_parse_audio_prefix(&priv->snd_card,
+					      &priv->codec_conf,
+					      dai_link->codec_of_node,
+					      PREFIX "prefix");
 	}
 
 	ret = asoc_simple_card_canonicalize_dailink(dai_link);
@@ -232,9 +224,9 @@ static int asoc_simple_card_dai_link_of(struct device_node *node,
 	for_each_child_of_node(node, np) {
 		dai_link = simple_priv_to_link(priv, i);
 
-		if (strcmp(np->name, "codec") == 0) {
+		if (strcmp(np->name, PREFIX "codec") == 0) {
 			ret = asoc_simple_card_parse_daifmt(dev, node, np,
-							    NULL, &daifmt);
+							    PREFIX, &daifmt);
 			if (ret < 0)
 				return ret;
 			break;
@@ -248,7 +240,7 @@ static int asoc_simple_card_dai_link_of(struct device_node *node,
 		dai_link->dai_fmt = daifmt;
 
 		is_fe = false;
-		if (strcmp(np->name, "cpu") == 0)
+		if (strcmp(np->name, PREFIX "cpu") == 0)
 			is_fe = true;
 
 		ret = asoc_simple_card_parse_links(np, priv, i, is_fe);
@@ -264,7 +256,6 @@ static int asoc_simple_card_parse_of(struct device_node *node,
 			      struct asoc_simple_card_priv *priv,
 			      struct device *dev)
 {
-	const struct asoc_simple_card_of_data *of_data = of_device_get_match_data(dev);
 	struct asoc_simple_dai *props;
 	struct snd_soc_dai_link *links;
 	int ret;
@@ -290,33 +281,29 @@ static int asoc_simple_card_parse_of(struct device_node *node,
 	priv->snd_card.codec_conf		= &priv->codec_conf;
 	priv->snd_card.num_configs		= 1;
 
-	if (of_data) {
-		priv->snd_card.of_dapm_routes		= of_data->routes;
-		priv->snd_card.num_of_dapm_routes	= of_data->num_routes;
-	} else {
-		snd_soc_of_parse_audio_routing(&priv->snd_card,
-					       "audio-routing");
-	}
+	ret = snd_soc_of_parse_audio_routing(&priv->snd_card, PREFIX "routing");
+	if (ret < 0)
+		return ret;
 
 	/* sampling rate convert */
-	of_property_read_u32(node, "convert-rate", &priv->convert_rate);
+	of_property_read_u32(node, PREFIX "convert-rate", &priv->convert_rate);
 
 	/* channels transfer */
-	of_property_read_u32(node, "convert-channels", &priv->convert_channels);
-
-	dev_dbg(dev, "New rsrc-audio-card: %s\n",
-		priv->snd_card.name ? priv->snd_card.name : "");
-	dev_dbg(dev, "SRC : convert_rate     %d\n", priv->convert_rate);
-	dev_dbg(dev, "CTU : convert_channels %d\n", priv->convert_channels);
+	of_property_read_u32(node, PREFIX "convert-channels", &priv->convert_channels);
 
 	ret = asoc_simple_card_dai_link_of(node, priv);
 	if (ret < 0)
 		return ret;
 
-	ret = asoc_simple_card_parse_card_name(&priv->snd_card, "card-");
+	ret = asoc_simple_card_parse_card_name(&priv->snd_card, PREFIX);
 	if (ret < 0)
 		return ret;
 
+	dev_dbg(dev, "New card: %s\n",
+		priv->snd_card.name ? priv->snd_card.name : "");
+	dev_dbg(dev, "convert_rate     %d\n", priv->convert_rate);
+	dev_dbg(dev, "convert_channels %d\n", priv->convert_channels);
+
 	return 0;
 }
 
@@ -359,7 +346,7 @@ static int asoc_simple_card_remove(struct platform_device *pdev)
 
 static struct platform_driver asoc_simple_card = {
 	.driver = {
-		.name = "renesas-src-audio-card",
+		.name = "simple-scu-audio-card",
 		.of_match_table = asoc_simple_card_of_match,
 	},
 	.probe = asoc_simple_card_probe,