Merge remote-tracking branch 'asoc/topic/rcar' into asoc-next

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

@@ -1,75 +0,0 @@
-Renesas Sampling Rate Convert Sound Card:
-
-Renesas Sampling Rate Convert Sound Card specifies audio DAI connections of SoC <-> codec.
-
-Required properties:
-
-- compatible				: "renesas,rsrc-card{,<board>}"
-					  Examples with boards are:
-					    - "renesas,rsrc-card"
-					    - "renesas,rsrc-card,lager"
-					    - "renesas,rsrc-card,koelsch"
-Optional properties:
-
-- card_name				: User specified audio sound card name, one string
-					  property.
-- cpu					: CPU   sub-node
-- codec					: CODEC sub-node
-
-Optional subnode properties:
-
-- 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.
-					  phandle to a cpu or codec subnode.
-- bitclock-master			: Indicates dai-link bit clock master.
-					  phandle to a cpu or codec subnode.
-- bitclock-inversion			: bool property. Add this if the
-					  dai-link uses bit clock inversion.
-- 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.
-					  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.
-					  it can be used if compatible was "renesas,rsrc-card";
-
-Required CPU/CODEC subnodes properties:
-
-- sound-dai				: phandle and port of CPU/CODEC
-
-Optional CPU/CODEC subnodes properties:
-
-- clocks / system-clock-frequency	: specify subnode's clock if needed.
-					  it can be specified via "clocks" if system has
-					  clock node (= common clock), or "system-clock-frequency"
-					  (if system doens't support common clock)
-					  If a clock is specified, it is
-					  enabled with clk_prepare_enable()
-					  in dai startup() and disabled with
-					  clk_disable_unprepare() in dai
-					  shutdown().
-
-Example
-
-sound {
-	compatible = "renesas,rsrc-card,lager";
-
-	card-name = "rsnd-ak4643";
-	format = "left_j";
-	bitclock-master = <&sndcodec>;
-	frame-master = <&sndcodec>;
-
-	sndcpu: cpu {
-		sound-dai = <&rcar_sound>;
-	};
-
-	sndcodec: codec {
-		sound-dai = <&ak4643>;
-		system-clock-frequency = <11289600>;
-	};
-};

Documentation/devicetree/bindings/sound/simple-scu-card.txt

@@ -0,0 +1,110 @@
+ASoC simple SCU Sound Card
+
+Simple-Card specifies audio DAI connections of SoC <-> codec.
+
+Required properties:
+
+- compatible				: "simple-scu-audio-card"
+					  "renesas,rsrc-card"
+
+Optional properties:
+
+- simple-audio-card,name		: User specified audio sound card name, one string
+					  property.
+- simple-audio-card,cpu			: CPU   sub-node
+- simple-audio-card,codec		: CODEC sub-node
+
+Optional subnode properties:
+
+- simple-audio-card,format		: CPU/CODEC common audio format.
+					  "i2s", "right_j", "left_j" , "dsp_a"
+					  "dsp_b", "ac97", "pdm", "msb", "lsb"
+- simple-audio-card,frame-master	: Indicates dai-link frame master.
+					  phandle to a cpu or codec subnode.
+- simple-audio-card,bitclock-master	: Indicates dai-link bit clock master.
+					  phandle to a cpu or codec subnode.
+- simple-audio-card,bitclock-inversion	: bool property. Add this if the
+					  dai-link uses bit clock inversion.
+- simple-audio-card,frame-inversion	: bool property. Add this if the
+					  dai-link uses frame clock inversion.
+- 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.
+					  it can be used if compatible was "renesas,rsrc-card";
+
+Required CPU/CODEC subnodes properties:
+
+- sound-dai				: phandle and port of CPU/CODEC
+
+Optional CPU/CODEC subnodes properties:
+
+- clocks / system-clock-frequency	: specify subnode's clock if needed.
+					  it can be specified via "clocks" if system has
+					  clock node (= common clock), or "system-clock-frequency"
+					  (if system doens't support common clock)
+					  If a clock is specified, it is
+					  enabled with clk_prepare_enable()
+					  in dai startup() and disabled with
+					  clk_disable_unprepare() in dai
+					  shutdown().
+
+Example 1. Sampling Rate Covert
+
+sound {
+	compatible = "simple-scu-audio-card";
+
+	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>;
+
+	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: simple-audio-card,codec {
+		sound-dai = <&ak4643>;
+		system-clock-frequency = <11289600>;
+	};
+};
+
+Example 2. 2 CPU 1 Codec
+
+sound {
+	compatible = "renesas,rsrc-card";
+
+	card-name = "rsnd-ak4643";
+	format = "left_j";
+	bitclock-master = <&dpcmcpu>;
+	frame-master = <&dpcmcpu>;
+
+	convert-rate = <48000>;  /* see audio_clk_a */
+
+	audio-prefix = "ak4642";
+	audio-routing = "ak4642 Playback", "DAI0 Playback",
+			"ak4642 Playback", "DAI1 Playback";
+
+	dpcmcpu: cpu@0 {
+		sound-dai = <&rcar_sound 0>;
+	};
+
+	cpu@1 {
+		sound-dai = <&rcar_sound 1>;
+	};
+
+	codec {
+		sound-dai = <&ak4643>;
+		clocks = <&audio_clock>;
+	};
+};

include/sound/simple_card_utils.h

@@ -33,4 +33,38 @@ int asoc_simple_card_set_dailink_name(struct device *dev,
 int asoc_simple_card_parse_card_name(struct snd_soc_card *card,
 				     char *prefix);
 
+#define asoc_simple_card_parse_clk_cpu(node, dai_link, simple_dai)		\
+	asoc_simple_card_parse_clk(node, dai_link->cpu_of_node, simple_dai)
+#define asoc_simple_card_parse_clk_codec(node, dai_link, simple_dai)		\
+	asoc_simple_card_parse_clk(node, dai_link->codec_of_node, simple_dai)
+int asoc_simple_card_parse_clk(struct device_node *node,
+			       struct device_node *dai_of_node,
+			       struct asoc_simple_dai *simple_dai);
+
+#define asoc_simple_card_parse_cpu(node, dai_link,				\
+				   list_name, cells_name, is_single_link)	\
+	asoc_simple_card_parse_dai(node, &dai_link->cpu_of_node,		\
+		&dai_link->cpu_dai_name, list_name, cells_name, is_single_link)
+#define asoc_simple_card_parse_codec(node, dai_link, list_name, cells_name)	\
+	asoc_simple_card_parse_dai(node, &dai_link->codec_of_node,		\
+		&dai_link->codec_dai_name, list_name, cells_name, NULL)
+#define asoc_simple_card_parse_platform(node, dai_link, list_name, cells_name)	\
+	asoc_simple_card_parse_dai(node, &dai_link->platform_of_node,		\
+		NULL, list_name, cells_name, NULL)
+int asoc_simple_card_parse_dai(struct device_node *node,
+				  struct device_node **endpoint_np,
+				  const char **dai_name,
+				  const char *list_name,
+				  const char *cells_name,
+				  int *is_single_links);
+
+int asoc_simple_card_init_dai(struct snd_soc_dai *dai,
+			      struct asoc_simple_dai *simple_dai);
+
+int asoc_simple_card_canonicalize_dailink(struct snd_soc_dai_link *dai_link);
+void asoc_simple_card_canonicalize_cpu(struct snd_soc_dai_link *dai_link,
+				      int is_single_links);
+
+int asoc_simple_card_clean_reference(struct snd_soc_card *card);
+
 #endif /* __SIMPLE_CARD_CORE_H */

sound/soc/generic/Kconfig

@@ -6,3 +6,11 @@ config SND_SIMPLE_CARD
 	select SND_SIMPLE_CARD_UTILS
 	help
 	  This option enables generic simple sound card support
+
+config SND_SIMPLE_SCU_CARD
+	tristate "ASoC Simple SCU sound card support"
+	depends on OF
+	select SND_SIMPLE_CARD_UTILS
+	help
+	  This option enables generic simple SCU sound card support.
+	  It supports DPCM of multi CPU single Codec system.

sound/soc/generic/Makefile

@@ -1,5 +1,7 @@
 snd-soc-simple-card-utils-objs	:= simple-card-utils.o
 snd-soc-simple-card-objs	:= simple-card.o
+snd-soc-simple-scu-card-objs	:= simple-scu-card.o
 
 obj-$(CONFIG_SND_SIMPLE_CARD_UTILS)	+= snd-soc-simple-card-utils.o
 obj-$(CONFIG_SND_SIMPLE_CARD)		+= snd-soc-simple-card.o
+obj-$(CONFIG_SND_SIMPLE_SCU_CARD)	+= snd-soc-simple-scu-card.o

sound/soc/generic/simple-card-utils.c

@@ -7,6 +7,7 @@
  * it under the terms of the GNU General Public License version 2 as
  * published by the Free Software Foundation.
  */
+#include <linux/clk.h>
 #include <linux/module.h>
 #include <linux/of.h>
 #include <sound/simple_card_utils.h>
@@ -97,6 +98,146 @@ int asoc_simple_card_parse_card_name(struct snd_soc_card *card,
 }
 EXPORT_SYMBOL_GPL(asoc_simple_card_parse_card_name);
 
+int asoc_simple_card_parse_clk(struct device_node *node,
+			       struct device_node *dai_of_node,
+			       struct asoc_simple_dai *simple_dai)
+{
+	struct clk *clk;
+	u32 val;
+
+	/*
+	 * Parse dai->sysclk come from "clocks = <&xxx>"
+	 * (if system has common clock)
+	 *  or "system-clock-frequency = <xxx>"
+	 *  or device's module clock.
+	 */
+	clk = of_clk_get(node, 0);
+	if (!IS_ERR(clk)) {
+		simple_dai->sysclk = clk_get_rate(clk);
+		simple_dai->clk = clk;
+	} else if (!of_property_read_u32(node, "system-clock-frequency", &val)) {
+		simple_dai->sysclk = val;
+	} else {
+		clk = of_clk_get(dai_of_node, 0);
+		if (!IS_ERR(clk))
+			simple_dai->sysclk = clk_get_rate(clk);
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(asoc_simple_card_parse_clk);
+
+int asoc_simple_card_parse_dai(struct device_node *node,
+				    struct device_node **dai_of_node,
+				    const char **dai_name,
+				    const char *list_name,
+				    const char *cells_name,
+				    int *is_single_link)
+{
+	struct of_phandle_args args;
+	int ret;
+
+	if (!node)
+		return 0;
+
+	/*
+	 * Get node via "sound-dai = <&phandle port>"
+	 * it will be used as xxx_of_node on soc_bind_dai_link()
+	 */
+	ret = of_parse_phandle_with_args(node, list_name, cells_name, 0, &args);
+	if (ret)
+		return ret;
+
+	/* Get dai->name */
+	if (dai_name) {
+		ret = snd_soc_of_get_dai_name(node, dai_name);
+		if (ret < 0)
+			return ret;
+	}
+
+	*dai_of_node = args.np;
+
+	if (is_single_link)
+		*is_single_link = !args.args_count;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(asoc_simple_card_parse_dai);
+
+int asoc_simple_card_init_dai(struct snd_soc_dai *dai,
+			      struct asoc_simple_dai *simple_dai)
+{
+	int ret;
+
+	if (simple_dai->sysclk) {
+		ret = snd_soc_dai_set_sysclk(dai, 0, simple_dai->sysclk, 0);
+		if (ret && ret != -ENOTSUPP) {
+			dev_err(dai->dev, "simple-card: set_sysclk error\n");
+			return ret;
+		}
+	}
+
+	if (simple_dai->slots) {
+		ret = snd_soc_dai_set_tdm_slot(dai,
+					       simple_dai->tx_slot_mask,
+					       simple_dai->rx_slot_mask,
+					       simple_dai->slots,
+					       simple_dai->slot_width);
+		if (ret && ret != -ENOTSUPP) {
+			dev_err(dai->dev, "simple-card: set_tdm_slot error\n");
+			return ret;
+		}
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(asoc_simple_card_init_dai);
+
+int asoc_simple_card_canonicalize_dailink(struct snd_soc_dai_link *dai_link)
+{
+	if (!dai_link->cpu_dai_name || !dai_link->codec_dai_name)
+		return -EINVAL;
+
+	/* Assumes platform == cpu */
+	if (!dai_link->platform_of_node)
+		dai_link->platform_of_node = dai_link->cpu_of_node;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(asoc_simple_card_canonicalize_dailink);
+
+void asoc_simple_card_canonicalize_cpu(struct snd_soc_dai_link *dai_link,
+				       int is_single_links)
+{
+	/*
+	 * In soc_bind_dai_link() will check cpu name after
+	 * of_node matching if dai_link has cpu_dai_name.
+	 * but, it will never match if name was created by
+	 * fmt_single_name() remove cpu_dai_name if cpu_args
+	 * was 0. See:
+	 *	fmt_single_name()
+	 *	fmt_multiple_name()
+	 */
+	if (is_single_links)
+		dai_link->cpu_dai_name = NULL;
+}
+EXPORT_SYMBOL_GPL(asoc_simple_card_canonicalize_cpu);
+
+int asoc_simple_card_clean_reference(struct snd_soc_card *card)
+{
+	struct snd_soc_dai_link *dai_link;
+	int num_links;
+
+	for (num_links = 0, dai_link = card->dai_link;
+	     num_links < card->num_links;
+	     num_links++, dai_link++) {
+		of_node_put(dai_link->cpu_of_node);
+		of_node_put(dai_link->codec_of_node);
+	}
+	return 0;
+}
+EXPORT_SYMBOL_GPL(asoc_simple_card_clean_reference);
+
 /* Module information */
 MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");
 MODULE_DESCRIPTION("ALSA SoC Simple Card Utils");

sound/soc/generic/simple-card.c

@@ -44,6 +44,8 @@ struct simple_card_data {
 #define simple_priv_to_link(priv, i) ((priv)->snd_card.dai_link + i)
 #define simple_priv_to_props(priv, i) ((priv)->dai_props + i)
 
+#define DAI	"sound-dai"
+#define CELL	"#sound-dai-cells"
 #define PREFIX	"simple-audio-card,"
 
 #define asoc_simple_card_init_hp(card, sjack, prefix)\
@@ -177,51 +179,19 @@ static struct snd_soc_ops asoc_simple_card_ops = {
 	.hw_params = asoc_simple_card_hw_params,
 };
 
-static int __asoc_simple_card_dai_init(struct snd_soc_dai *dai,
-				       struct asoc_simple_dai *set)
-{
-	int ret;
-
-	if (set->sysclk) {
-		ret = snd_soc_dai_set_sysclk(dai, 0, set->sysclk, 0);
-		if (ret && ret != -ENOTSUPP) {
-			dev_err(dai->dev, "simple-card: set_sysclk error\n");
-			goto err;
-		}
-	}
-
-	if (set->slots) {
-		ret = snd_soc_dai_set_tdm_slot(dai,
-					       set->tx_slot_mask,
-					       set->rx_slot_mask,
-						set->slots,
-						set->slot_width);
-		if (ret && ret != -ENOTSUPP) {
-			dev_err(dai->dev, "simple-card: set_tdm_slot error\n");
-			goto err;
-		}
-	}
-
-	ret = 0;
-
-err:
-	return ret;
-}
-
 static int asoc_simple_card_dai_init(struct snd_soc_pcm_runtime *rtd)
 {
 	struct simple_card_data *priv =	snd_soc_card_get_drvdata(rtd->card);
 	struct snd_soc_dai *codec = rtd->codec_dai;
 	struct snd_soc_dai *cpu = rtd->cpu_dai;
-	struct simple_dai_props *dai_props;
+	struct simple_dai_props *dai_props = &priv->dai_props[rtd->num];
 	int ret;
 
-	dai_props = &priv->dai_props[rtd->num];
-	ret = __asoc_simple_card_dai_init(codec, &dai_props->codec_dai);
+	ret = asoc_simple_card_init_dai(codec, &dai_props->codec_dai);
 	if (ret < 0)
 		return ret;
 
-	ret = __asoc_simple_card_dai_init(cpu, &dai_props->cpu_dai);
+	ret = asoc_simple_card_init_dai(cpu, &dai_props->cpu_dai);
 	if (ret < 0)
 		return ret;
 
@@ -236,78 +206,6 @@ static int asoc_simple_card_dai_init(struct snd_soc_pcm_runtime *rtd)
 	return 0;
 }
 
-static int
-asoc_simple_card_sub_parse_of(struct device_node *np,
-			      struct asoc_simple_dai *dai,
-			      struct device_node **p_node,
-			      const char **name,
-			      int *args_count)
-{
-	struct of_phandle_args args;
-	struct clk *clk;
-	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()
-	 */
-	ret = of_parse_phandle_with_args(np, "sound-dai",
-					 "#sound-dai-cells", 0, &args);
-	if (ret)
-		return ret;
-
-	*p_node = args.np;
-
-	if (args_count)
-		*args_count = args.args_count;
-
-	/* Get dai->name */
-	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,
-					&dai->rx_slot_mask,
-					&dai->slots, &dai->slot_width);
-	if (ret)
-		return ret;
-
-	/*
-	 * Parse dai->sysclk come from "clocks = <&xxx>"
-	 * (if system has common clock)
-	 *  or "system-clock-frequency = <xxx>"
-	 *  or device's module clock.
-	 */
-	if (of_property_read_bool(np, "clocks")) {
-		clk = of_clk_get(np, 0);
-		if (IS_ERR(clk)) {
-			ret = PTR_ERR(clk);
-			return ret;
-		}
-
-		dai->sysclk = clk_get_rate(clk);
-		dai->clk = clk;
-	} else if (!of_property_read_u32(np, "system-clock-frequency", &val)) {
-		dai->sysclk = val;
-	} else {
-		clk = of_clk_get(args.np, 0);
-		if (!IS_ERR(clk))
-			dai->sysclk = clk_get_rate(clk);
-	}
-
-	return 0;
-}
-
 static int asoc_simple_card_dai_link_of(struct device_node *node,
 					struct simple_card_data *priv,
 					int idx,
@@ -316,12 +214,14 @@ static int asoc_simple_card_dai_link_of(struct device_node *node,
 	struct device *dev = simple_priv_to_dev(priv);
 	struct snd_soc_dai_link *dai_link = simple_priv_to_link(priv, idx);
 	struct simple_dai_props *dai_props = simple_priv_to_props(priv, idx);
+	struct asoc_simple_dai *cpu_dai = &dai_props->cpu_dai;
+	struct asoc_simple_dai *codec_dai = &dai_props->codec_dai;
 	struct device_node *cpu = NULL;
 	struct device_node *plat = NULL;
 	struct device_node *codec = NULL;
 	char prop[128];
 	char *prefix = "";
-	int ret, cpu_args;
+	int ret, single_cpu;
 	u32 val;
 
 	/* For single DAI link & old style of DT node */
@@ -351,33 +251,44 @@ static int asoc_simple_card_dai_link_of(struct device_node *node,
 	if (!of_property_read_u32(node, "mclk-fs", &val))
 		dai_props->mclk_fs = val;
 
-	ret = asoc_simple_card_sub_parse_of(cpu, &dai_props->cpu_dai,
-					    &dai_link->cpu_of_node,
-					    &dai_link->cpu_dai_name,
-					    &cpu_args);
+	ret = asoc_simple_card_parse_cpu(cpu, dai_link,
+					 DAI, CELL, &single_cpu);
 	if (ret < 0)
 		goto dai_link_of_err;
 
-	ret = asoc_simple_card_sub_parse_of(codec, &dai_props->codec_dai,
-					    &dai_link->codec_of_node,
-					    &dai_link->codec_dai_name, NULL);
+	ret = asoc_simple_card_parse_codec(codec, dai_link, DAI, CELL);
 	if (ret < 0)
 		goto dai_link_of_err;
 
-	ret = asoc_simple_card_sub_parse_of(plat, NULL,
-					    &dai_link->platform_of_node,
-					    NULL, NULL);
+	ret = asoc_simple_card_parse_platform(plat, dai_link, DAI, CELL);
 	if (ret < 0)
 		goto dai_link_of_err;
 
-	if (!dai_link->cpu_dai_name || !dai_link->codec_dai_name) {
-		ret = -EINVAL;
+	ret = snd_soc_of_parse_tdm_slot(cpu,	&cpu_dai->tx_slot_mask,
+						&cpu_dai->rx_slot_mask,
+						&cpu_dai->slots,
+						&cpu_dai->slot_width);
+	if (ret < 0)
+		goto dai_link_of_err;
+
+	ret = snd_soc_of_parse_tdm_slot(codec,	&codec_dai->tx_slot_mask,
+						&codec_dai->rx_slot_mask,
+						&codec_dai->slots,
+						&codec_dai->slot_width);
+	if (ret < 0)
+		goto dai_link_of_err;
+
+	ret = asoc_simple_card_parse_clk_cpu(cpu, dai_link, cpu_dai);
+	if (ret < 0)
 		goto dai_link_of_err;
-	}
 
-	/* Assumes platform == cpu */
-	if (!dai_link->platform_of_node)
-		dai_link->platform_of_node = dai_link->cpu_of_node;
+	ret = asoc_simple_card_parse_clk_codec(codec, dai_link, codec_dai);
+	if (ret < 0)
+		goto dai_link_of_err;
+
+	ret = asoc_simple_card_canonicalize_dailink(dai_link);
+	if (ret < 0)
+		goto dai_link_of_err;
 
 	ret = asoc_simple_card_set_dailink_name(dev, dai_link,
 						"%s-%s",
@@ -398,17 +309,7 @@ static int asoc_simple_card_dai_link_of(struct device_node *node,
 		dai_link->codec_dai_name,
 		dai_props->codec_dai.sysclk);
 
-	/*
-	 * In soc_bind_dai_link() will check cpu name after
-	 * of_node matching if dai_link has cpu_dai_name.
-	 * but, it will never match if name was created by
-	 * fmt_single_name() remove cpu_dai_name if cpu_args
-	 * was 0. See:
-	 *	fmt_single_name()
-	 *	fmt_multiple_name()
-	 */
-	if (!cpu_args)
-		dai_link->cpu_dai_name = NULL;
+	asoc_simple_card_canonicalize_cpu(dai_link, single_cpu);
 
 dai_link_of_err:
 	of_node_put(cpu);
@@ -477,21 +378,6 @@ static int asoc_simple_card_parse_of(struct device_node *node,
 	return 0;
 }
 
-/* Decrease the reference count of the device nodes */
-static int asoc_simple_card_unref(struct snd_soc_card *card)
-{
-	struct snd_soc_dai_link *dai_link;
-	int num_links;
-
-	for (num_links = 0, dai_link = card->dai_link;
-	     num_links < card->num_links;
-	     num_links++, dai_link++) {
-		of_node_put(dai_link->cpu_of_node);
-		of_node_put(dai_link->codec_of_node);
-	}
-	return 0;
-}
-
 static int asoc_simple_card_probe(struct platform_device *pdev)
 {
 	struct simple_card_data *priv;
@@ -577,7 +463,7 @@ static int asoc_simple_card_probe(struct platform_device *pdev)
 		return ret;
 
 err:
-	asoc_simple_card_unref(&priv->snd_card);
+	asoc_simple_card_clean_reference(&priv->snd_card);
 	return ret;
 }
 
@@ -589,7 +475,7 @@ static int asoc_simple_card_remove(struct platform_device *pdev)
 	asoc_simple_card_remove_jack(&priv->hp_jack);
 	asoc_simple_card_remove_jack(&priv->mic_jack);
 
-	return asoc_simple_card_unref(card);
+	return asoc_simple_card_clean_reference(card);
 }
 
 static const struct of_device_id asoc_simple_of_match[] = {

sound/soc/generic/simple-scu-card.c

@@ -0,0 +1,345 @@
+/*
+ * ASoC simple SCU sound card support
+ *
+ * Copyright (C) 2015 Renesas Solutions Corp.
+ * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
+ *
+ * based on ${LINUX}/sound/soc/generic/simple-card.c
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/clk.h>
+#include <linux/device.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+#include <linux/string.h>
+#include <sound/jack.h>
+#include <sound/soc.h>
+#include <sound/soc-dai.h>
+#include <sound/simple_card_utils.h>
+
+struct asoc_simple_card_priv {
+	struct snd_soc_card snd_card;
+	struct snd_soc_codec_conf codec_conf;
+	struct asoc_simple_dai *dai_props;
+	struct snd_soc_dai_link *dai_link;
+	u32 convert_rate;
+	u32 convert_channels;
+};
+
+#define simple_priv_to_dev(priv) ((priv)->snd_card.dev)
+#define simple_priv_to_link(priv, i) ((priv)->snd_card.dai_link + (i))
+#define simple_priv_to_props(priv, i) ((priv)->dai_props + (i))
+
+#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)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct asoc_simple_card_priv *priv =	snd_soc_card_get_drvdata(rtd->card);
+	struct asoc_simple_dai *dai_props =
+		simple_priv_to_props(priv, rtd->num);
+
+	return clk_prepare_enable(dai_props->clk);
+}
+
+static void asoc_simple_card_shutdown(struct snd_pcm_substream *substream)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct asoc_simple_card_priv *priv =	snd_soc_card_get_drvdata(rtd->card);
+	struct asoc_simple_dai *dai_props =
+		simple_priv_to_props(priv, rtd->num);
+
+	clk_disable_unprepare(dai_props->clk);
+}
+
+static struct snd_soc_ops asoc_simple_card_ops = {
+	.startup = asoc_simple_card_startup,
+	.shutdown = asoc_simple_card_shutdown,
+};
+
+static int asoc_simple_card_dai_init(struct snd_soc_pcm_runtime *rtd)
+{
+	struct asoc_simple_card_priv *priv = snd_soc_card_get_drvdata(rtd->card);
+	struct snd_soc_dai *dai;
+	struct snd_soc_dai_link *dai_link;
+	struct asoc_simple_dai *dai_props;
+	int num = rtd->num;
+
+	dai_link	= simple_priv_to_link(priv, num);
+	dai_props	= simple_priv_to_props(priv, num);
+	dai		= dai_link->dynamic ?
+				rtd->cpu_dai :
+				rtd->codec_dai;
+
+	return asoc_simple_card_init_dai(dai, dai_props);
+}
+
+static int asoc_simple_card_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
+					struct snd_pcm_hw_params *params)
+{
+	struct asoc_simple_card_priv *priv = snd_soc_card_get_drvdata(rtd->card);
+	struct snd_interval *rate = hw_param_interval(params,
+						      SNDRV_PCM_HW_PARAM_RATE);
+	struct snd_interval *channels = hw_param_interval(params,
+						SNDRV_PCM_HW_PARAM_CHANNELS);
+
+	if (priv->convert_rate)
+		rate->min =
+		rate->max = priv->convert_rate;
+
+	if (priv->convert_channels)
+		channels->min =
+		channels->max = priv->convert_channels;
+
+	return 0;
+}
+
+static int asoc_simple_card_parse_links(struct device_node *np,
+					struct asoc_simple_card_priv *priv,
+					unsigned int daifmt,
+					int idx, bool is_fe)
+{
+	struct device *dev = simple_priv_to_dev(priv);
+	struct snd_soc_dai_link *dai_link = simple_priv_to_link(priv, idx);
+	struct asoc_simple_dai *dai_props = simple_priv_to_props(priv, idx);
+	int ret;
+
+	if (is_fe) {
+		int is_single_links = 0;
+
+		/* BE is dummy */
+		dai_link->codec_of_node		= NULL;
+		dai_link->codec_dai_name	= "snd-soc-dummy-dai";
+		dai_link->codec_name		= "snd-soc-dummy";
+
+		/* FE settings */
+		dai_link->dynamic		= 1;
+		dai_link->dpcm_merged_format	= 1;
+
+		ret = asoc_simple_card_parse_cpu(np, dai_link, DAI, CELL,
+						 &is_single_links);
+		if (ret)
+			return ret;
+
+		ret = asoc_simple_card_parse_clk_cpu(np, dai_link, dai_props);
+		if (ret < 0)
+			return ret;
+
+		ret = asoc_simple_card_set_dailink_name(dev, dai_link,
+							"fe.%s",
+							dai_link->cpu_dai_name);
+		if (ret < 0)
+			return ret;
+
+		asoc_simple_card_canonicalize_cpu(dai_link, is_single_links);
+	} else {
+		/* FE is dummy */
+		dai_link->cpu_of_node		= NULL;
+		dai_link->cpu_dai_name		= "snd-soc-dummy-dai";
+		dai_link->cpu_name		= "snd-soc-dummy";
+
+		/* BE settings */
+		dai_link->no_pcm		= 1;
+		dai_link->be_hw_params_fixup	= asoc_simple_card_be_hw_params_fixup;
+
+		ret = asoc_simple_card_parse_codec(np, dai_link, DAI, CELL);
+		if (ret < 0)
+			return ret;
+
+		ret = asoc_simple_card_parse_clk_codec(np, dai_link, dai_props);
+		if (ret < 0)
+			return ret;
+
+		ret = asoc_simple_card_set_dailink_name(dev, dai_link,
+							"be.%s",
+							dai_link->codec_dai_name);
+		if (ret < 0)
+			return ret;
+
+		snd_soc_of_parse_audio_prefix(&priv->snd_card,
+					      &priv->codec_conf,
+					      dai_link->codec_of_node,
+					      PREFIX "prefix");
+	}
+
+	ret = snd_soc_of_parse_tdm_slot(np,
+					&dai_props->tx_slot_mask,
+					&dai_props->rx_slot_mask,
+					&dai_props->slots,
+					&dai_props->slot_width);
+	if (ret)
+		return ret;
+
+	ret = asoc_simple_card_canonicalize_dailink(dai_link);
+	if (ret < 0)
+		return ret;
+
+	dai_link->dai_fmt		= daifmt;
+	dai_link->dpcm_playback		= 1;
+	dai_link->dpcm_capture		= 1;
+	dai_link->ops			= &asoc_simple_card_ops;
+	dai_link->init			= asoc_simple_card_dai_init;
+
+	dev_dbg(dev, "\t%s / %04x / %d\n",
+		dai_link->name,
+		dai_link->dai_fmt,
+		dai_props->sysclk);
+
+	return 0;
+}
+
+static int asoc_simple_card_dai_link_of(struct device_node *node,
+				 struct asoc_simple_card_priv *priv)
+{
+	struct device *dev = simple_priv_to_dev(priv);
+	struct device_node *np;
+	unsigned int daifmt = 0;
+	int ret, i;
+	bool is_fe;
+
+	/* find 1st codec */
+	np = of_get_child_by_name(node, PREFIX "codec");
+	if (!np)
+		return -ENODEV;
+
+	ret = asoc_simple_card_parse_daifmt(dev, node, np,
+					    PREFIX, &daifmt);
+	if (ret < 0)
+		return ret;
+
+	i = 0;
+	for_each_child_of_node(node, np) {
+		is_fe = false;
+		if (strcmp(np->name, PREFIX "cpu") == 0)
+			is_fe = true;
+
+		ret = asoc_simple_card_parse_links(np, priv, daifmt, i, is_fe);
+		if (ret < 0)
+			return ret;
+		i++;
+	}
+
+	return 0;
+}
+
+static int asoc_simple_card_parse_of(struct device_node *node,
+			      struct asoc_simple_card_priv *priv,
+			      struct device *dev)
+{
+	struct asoc_simple_dai *props;
+	struct snd_soc_dai_link *links;
+	int ret;
+	int num;
+
+	if (!node)
+		return -EINVAL;
+
+	num = of_get_child_count(node);
+	props = devm_kzalloc(dev, sizeof(*props) * num, GFP_KERNEL);
+	links = devm_kzalloc(dev, sizeof(*links) * num, GFP_KERNEL);
+	if (!props || !links)
+		return -ENOMEM;
+
+	priv->dai_props	= props;
+	priv->dai_link	= links;
+
+	/* Init snd_soc_card */
+	priv->snd_card.owner			= THIS_MODULE;
+	priv->snd_card.dev			= dev;
+	priv->snd_card.dai_link			= priv->dai_link;
+	priv->snd_card.num_links		= num;
+	priv->snd_card.codec_conf		= &priv->codec_conf;
+	priv->snd_card.num_configs		= 1;
+
+	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, PREFIX "convert-rate", &priv->convert_rate);
+
+	/* channels transfer */
+	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, 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;
+}
+
+static int asoc_simple_card_probe(struct platform_device *pdev)
+{
+	struct asoc_simple_card_priv *priv;
+	struct device_node *np = pdev->dev.of_node;
+	struct device *dev = &pdev->dev;
+	int ret;
+
+	/* Allocate the private data */
+	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	ret = asoc_simple_card_parse_of(np, priv, dev);
+	if (ret < 0) {
+		if (ret != -EPROBE_DEFER)
+			dev_err(dev, "parse error %d\n", ret);
+		goto err;
+	}
+
+	snd_soc_card_set_drvdata(&priv->snd_card, priv);
+
+	ret = devm_snd_soc_register_card(&pdev->dev, &priv->snd_card);
+	if (ret >= 0)
+		return ret;
+err:
+	asoc_simple_card_clean_reference(&priv->snd_card);
+
+	return ret;
+}
+
+static int asoc_simple_card_remove(struct platform_device *pdev)
+{
+	struct snd_soc_card *card = platform_get_drvdata(pdev);
+
+	return asoc_simple_card_clean_reference(card);
+}
+
+static const struct of_device_id asoc_simple_of_match[] = {
+	{ .compatible = "renesas,rsrc-card", },
+	{ .compatible = "simple-scu-audio-card", },
+	{},
+};
+MODULE_DEVICE_TABLE(of, asoc_simple_of_match);
+
+static struct platform_driver asoc_simple_card = {
+	.driver = {
+		.name = "simple-scu-audio-card",
+		.of_match_table = asoc_simple_of_match,
+	},
+	.probe = asoc_simple_card_probe,
+	.remove = asoc_simple_card_remove,
+};
+
+module_platform_driver(asoc_simple_card);
+
+MODULE_ALIAS("platform:asoc-simple-scu-card");
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("ASoC Simple SCU Sound Card");
+MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");

sound/soc/sh/Kconfig

@@ -42,12 +42,6 @@ config SND_SOC_RCAR
 	help
 	  This option enables R-Car SRU/SCU/SSIU/SSI sound support
 
-config SND_SOC_RSRC_CARD
-	tristate "Renesas Sampling Rate Convert Sound Card"
-	select SND_SIMPLE_CARD_UTILS
-	help
-	  This option enables simple sound if you need sampling rate convert
-
 ##
 ## Boards
 ##

sound/soc/sh/rcar/Makefile

@@ -1,5 +1,2 @@
 snd-soc-rcar-objs	:= core.o gen.o dma.o adg.o ssi.o ssiu.o src.o ctu.o mix.o dvc.o cmd.o
 obj-$(CONFIG_SND_SOC_RCAR)	+= snd-soc-rcar.o
-
-snd-soc-rsrc-card-objs	:= rsrc-card.o
-obj-$(CONFIG_SND_SOC_RSRC_CARD)	+= snd-soc-rsrc-card.o

sound/soc/sh/rcar/core.c

@@ -110,6 +110,7 @@ MODULE_DEVICE_TABLE(of, rsnd_of_match);
 /*
  *	rsnd_mod functions
  */
+#ifdef DEBUG
 void rsnd_mod_make_sure(struct rsnd_mod *mod, enum rsnd_mod_type type)
 {
 	if (mod->type != type) {
@@ -120,6 +121,7 @@ void rsnd_mod_make_sure(struct rsnd_mod *mod, enum rsnd_mod_type type)
 			 rsnd_mod_name(mod), rsnd_mod_id(mod));
 	}
 }
+#endif
 
 char *rsnd_mod_name(struct rsnd_mod *mod)
 {
@@ -574,6 +576,7 @@ static int rsnd_soc_dai_trigger(struct snd_pcm_substream *substream, int cmd,
 
 	switch (cmd) {
 	case SNDRV_PCM_TRIGGER_START:
+	case SNDRV_PCM_TRIGGER_RESUME:
 		rsnd_dai_stream_init(io, substream);
 
 		ret = rsnd_dai_call(init, io, priv);
@@ -590,6 +593,7 @@ static int rsnd_soc_dai_trigger(struct snd_pcm_substream *substream, int cmd,
 
 		break;
 	case SNDRV_PCM_TRIGGER_STOP:
+	case SNDRV_PCM_TRIGGER_SUSPEND:
 		ret = rsnd_dai_call(irq, io, priv, 0);
 
 		ret |= rsnd_dai_call(stop, io, priv);

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

@@ -1,486 +0,0 @@
-/*
- * Renesas Sampling Rate Convert Sound Card for DPCM
- *
- * Copyright (C) 2015 Renesas Solutions Corp.
- * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
- *
- * based on ${LINUX}/sound/soc/generic/simple-card.c
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-#include <linux/clk.h>
-#include <linux/device.h>
-#include <linux/module.h>
-#include <linux/of.h>
-#include <linux/of_device.h>
-#include <linux/platform_device.h>
-#include <linux/string.h>
-#include <sound/jack.h>
-#include <sound/soc.h>
-#include <sound/soc-dai.h>
-#include <sound/simple_card_utils.h>
-
-struct rsrc_card_of_data {
-	const char *prefix;
-	const struct snd_soc_dapm_route *routes;
-	int num_routes;
-};
-
-static const struct snd_soc_dapm_route routes_ssi0_ak4642[] = {
-	{"ak4642 Playback", NULL, "DAI0 Playback"},
-	{"DAI0 Capture", NULL, "ak4642 Capture"},
-};
-
-static const struct rsrc_card_of_data routes_of_ssi0_ak4642 = {
-	.prefix		= "ak4642",
-	.routes		= routes_ssi0_ak4642,
-	.num_routes	= ARRAY_SIZE(routes_ssi0_ak4642),
-};
-
-static const struct of_device_id rsrc_card_of_match[] = {
-	{ .compatible = "renesas,rsrc-card,lager",	.data = &routes_of_ssi0_ak4642 },
-	{ .compatible = "renesas,rsrc-card,koelsch",	.data = &routes_of_ssi0_ak4642 },
-	{ .compatible = "renesas,rsrc-card", },
-	{},
-};
-MODULE_DEVICE_TABLE(of, rsrc_card_of_match);
-
-#define IDX_CPU		0
-#define IDX_CODEC	1
-struct rsrc_card_priv {
-	struct snd_soc_card snd_card;
-	struct snd_soc_codec_conf codec_conf;
-	struct asoc_simple_dai *dai_props;
-	struct snd_soc_dai_link *dai_link;
-	u32 convert_rate;
-	u32 convert_channels;
-};
-
-#define rsrc_priv_to_dev(priv) ((priv)->snd_card.dev)
-#define rsrc_priv_to_link(priv, i) ((priv)->snd_card.dai_link + (i))
-#define rsrc_priv_to_props(priv, i) ((priv)->dai_props + (i))
-
-static int rsrc_card_startup(struct snd_pcm_substream *substream)
-{
-	struct snd_soc_pcm_runtime *rtd = substream->private_data;
-	struct rsrc_card_priv *priv =	snd_soc_card_get_drvdata(rtd->card);
-	struct asoc_simple_dai *dai_props =
-		rsrc_priv_to_props(priv, rtd->num);
-
-	return clk_prepare_enable(dai_props->clk);
-}
-
-static void rsrc_card_shutdown(struct snd_pcm_substream *substream)
-{
-	struct snd_soc_pcm_runtime *rtd = substream->private_data;
-	struct rsrc_card_priv *priv =	snd_soc_card_get_drvdata(rtd->card);
-	struct asoc_simple_dai *dai_props =
-		rsrc_priv_to_props(priv, rtd->num);
-
-	clk_disable_unprepare(dai_props->clk);
-}
-
-static struct snd_soc_ops rsrc_card_ops = {
-	.startup = rsrc_card_startup,
-	.shutdown = rsrc_card_shutdown,
-};
-
-static int rsrc_card_dai_init(struct snd_soc_pcm_runtime *rtd)
-{
-	struct rsrc_card_priv *priv = snd_soc_card_get_drvdata(rtd->card);
-	struct snd_soc_dai *dai;
-	struct snd_soc_dai_link *dai_link;
-	struct asoc_simple_dai *dai_props;
-	int num = rtd->num;
-	int ret;
-
-	dai_link	= rsrc_priv_to_link(priv, num);
-	dai_props	= rsrc_priv_to_props(priv, num);
-	dai		= dai_link->dynamic ?
-				rtd->cpu_dai :
-				rtd->codec_dai;
-
-	if (dai_props->sysclk) {
-		ret = snd_soc_dai_set_sysclk(dai, 0, dai_props->sysclk, 0);
-		if (ret && ret != -ENOTSUPP) {
-			dev_err(dai->dev, "set_sysclk error\n");
-			goto err;
-		}
-	}
-
-	if (dai_props->slots) {
-		ret = snd_soc_dai_set_tdm_slot(dai,
-					       dai_props->tx_slot_mask,
-					       dai_props->rx_slot_mask,
-					       dai_props->slots,
-					       dai_props->slot_width);
-		if (ret && ret != -ENOTSUPP) {
-			dev_err(dai->dev, "set_tdm_slot error\n");
-			goto err;
-		}
-	}
-
-	ret = 0;
-
-err:
-	return ret;
-}
-
-static int rsrc_card_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
-					struct snd_pcm_hw_params *params)
-{
-	struct rsrc_card_priv *priv = snd_soc_card_get_drvdata(rtd->card);
-	struct snd_interval *rate = hw_param_interval(params,
-						      SNDRV_PCM_HW_PARAM_RATE);
-	struct snd_interval *channels = hw_param_interval(params,
-						SNDRV_PCM_HW_PARAM_CHANNELS);
-
-	if (priv->convert_rate)
-		rate->min =
-		rate->max = priv->convert_rate;
-
-	if (priv->convert_channels)
-		channels->min =
-		channels->max = priv->convert_channels;
-
-	return 0;
-}
-
-static int rsrc_card_parse_links(struct device_node *np,
-				 struct rsrc_card_priv *priv,
-				 int idx, bool is_fe)
-{
-	struct device *dev = rsrc_priv_to_dev(priv);
-	struct snd_soc_dai_link *dai_link = rsrc_priv_to_link(priv, idx);
-	struct asoc_simple_dai *dai_props = rsrc_priv_to_props(priv, idx);
-	struct of_phandle_args args;
-	int ret;
-
-	/*
-	 * Get node via "sound-dai = <&phandle port>"
-	 * it will be used as xxx_of_node on soc_bind_dai_link()
-	 */
-	ret = of_parse_phandle_with_args(np, "sound-dai",
-					 "#sound-dai-cells", 0, &args);
-	if (ret)
-		return ret;
-
-	/* Parse TDM slot */
-	ret = snd_soc_of_parse_tdm_slot(np,
-					&dai_props->tx_slot_mask,
-					&dai_props->rx_slot_mask,
-					&dai_props->slots,
-					&dai_props->slot_width);
-	if (ret)
-		return ret;
-
-	if (is_fe) {
-		/* BE is dummy */
-		dai_link->codec_of_node		= NULL;
-		dai_link->codec_dai_name	= "snd-soc-dummy-dai";
-		dai_link->codec_name		= "snd-soc-dummy";
-
-		/* FE settings */
-		dai_link->dynamic		= 1;
-		dai_link->dpcm_merged_format	= 1;
-		dai_link->cpu_of_node		= args.np;
-		ret = snd_soc_of_get_dai_name(np, &dai_link->cpu_dai_name);
-		if (ret < 0)
-			return ret;
-
-		ret = asoc_simple_card_set_dailink_name(dev, dai_link,
-							"fe.%s",
-							dai_link->cpu_dai_name);
-		if (ret < 0)
-			return ret;
-
-		/*
-		 * In soc_bind_dai_link() will check cpu name after
-		 * of_node matching if dai_link has cpu_dai_name.
-		 * but, it will never match if name was created by
-		 * fmt_single_name() remove cpu_dai_name if cpu_args
-		 * was 0. See:
-		 *	fmt_single_name()
-		 *	fmt_multiple_name()
-		 */
-		if (!args.args_count)
-			dai_link->cpu_dai_name = NULL;
-	} else {
-		const struct rsrc_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";
-		dai_link->cpu_name		= "snd-soc-dummy";
-
-		/* BE settings */
-		dai_link->no_pcm		= 1;
-		dai_link->be_hw_params_fixup	= rsrc_card_be_hw_params_fixup;
-		dai_link->codec_of_node		= args.np;
-		ret = snd_soc_of_get_dai_name(np, &dai_link->codec_dai_name);
-		if (ret < 0)
-			return ret;
-
-		ret = asoc_simple_card_set_dailink_name(dev, dai_link,
-							"be.%s",
-							dai_link->codec_dai_name);
-		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");
-		}
-	}
-
-	/* Simple Card assumes platform == cpu */
-	dai_link->platform_of_node	= dai_link->cpu_of_node;
-	dai_link->dpcm_playback		= 1;
-	dai_link->dpcm_capture		= 1;
-	dai_link->ops			= &rsrc_card_ops;
-	dai_link->init			= rsrc_card_dai_init;
-
-	return 0;
-}
-
-static int rsrc_card_parse_clk(struct device_node *np,
-			       struct rsrc_card_priv *priv,
-			       int idx, bool is_fe)
-{
-	struct snd_soc_dai_link *dai_link = rsrc_priv_to_link(priv, idx);
-	struct asoc_simple_dai *dai_props = rsrc_priv_to_props(priv, idx);
-	struct clk *clk;
-	struct device_node *of_np = is_fe ?	dai_link->cpu_of_node :
-						dai_link->codec_of_node;
-	u32 val;
-
-	/*
-	 * Parse dai->sysclk come from "clocks = <&xxx>"
-	 * (if system has common clock)
-	 *  or "system-clock-frequency = <xxx>"
-	 *  or device's module clock.
-	 */
-	if (of_property_read_bool(np, "clocks")) {
-		clk = of_clk_get(np, 0);
-		if (IS_ERR(clk))
-			return PTR_ERR(clk);
-
-		dai_props->sysclk = clk_get_rate(clk);
-		dai_props->clk = clk;
-	} else if (!of_property_read_u32(np, "system-clock-frequency", &val)) {
-		dai_props->sysclk = val;
-	} else {
-		clk = of_clk_get(of_np, 0);
-		if (!IS_ERR(clk))
-			dai_props->sysclk = clk_get_rate(clk);
-	}
-
-	return 0;
-}
-
-static int rsrc_card_dai_sub_link_of(struct device_node *node,
-				     struct device_node *np,
-				     struct rsrc_card_priv *priv,
-				     int idx, bool is_fe)
-{
-	struct device *dev = rsrc_priv_to_dev(priv);
-	struct snd_soc_dai_link *dai_link = rsrc_priv_to_link(priv, idx);
-	struct asoc_simple_dai *dai_props = rsrc_priv_to_props(priv, idx);
-	int ret;
-
-	ret = rsrc_card_parse_links(np, priv, idx, is_fe);
-	if (ret < 0)
-		return ret;
-
-	ret = rsrc_card_parse_clk(np, priv, idx, is_fe);
-	if (ret < 0)
-		return ret;
-
-	dev_dbg(dev, "\t%s / %04x / %d\n",
-		dai_link->name,
-		dai_link->dai_fmt,
-		dai_props->sysclk);
-
-	return ret;
-}
-
-static int rsrc_card_dai_link_of(struct device_node *node,
-				 struct rsrc_card_priv *priv)
-{
-	struct device *dev = rsrc_priv_to_dev(priv);
-	struct snd_soc_dai_link *dai_link;
-	struct device_node *np;
-	unsigned int daifmt = 0;
-	int ret, i;
-	bool is_fe;
-
-	/* find 1st codec */
-	i = 0;
-	for_each_child_of_node(node, np) {
-		dai_link = rsrc_priv_to_link(priv, i);
-
-		if (strcmp(np->name, "codec") == 0) {
-			ret = asoc_simple_card_parse_daifmt(dev, node, np,
-							    NULL, &daifmt);
-			if (ret < 0)
-				return ret;
-			break;
-		}
-		i++;
-	}
-
-	i = 0;
-	for_each_child_of_node(node, np) {
-		dai_link = rsrc_priv_to_link(priv, i);
-		dai_link->dai_fmt = daifmt;
-
-		is_fe = false;
-		if (strcmp(np->name, "cpu") == 0)
-			is_fe = true;
-
-		ret = rsrc_card_dai_sub_link_of(node, np, priv, i, is_fe);
-		if (ret < 0)
-			return ret;
-		i++;
-	}
-
-	return 0;
-}
-
-static int rsrc_card_parse_of(struct device_node *node,
-			      struct rsrc_card_priv *priv,
-			      struct device *dev)
-{
-	const struct rsrc_card_of_data *of_data = of_device_get_match_data(dev);
-	struct asoc_simple_dai *props;
-	struct snd_soc_dai_link *links;
-	int ret;
-	int num;
-
-	if (!node)
-		return -EINVAL;
-
-	num = of_get_child_count(node);
-	props = devm_kzalloc(dev, sizeof(*props) * num, GFP_KERNEL);
-	links = devm_kzalloc(dev, sizeof(*links) * num, GFP_KERNEL);
-	if (!props || !links)
-		return -ENOMEM;
-
-	priv->dai_props	= props;
-	priv->dai_link	= links;
-
-	/* Init snd_soc_card */
-	priv->snd_card.owner			= THIS_MODULE;
-	priv->snd_card.dev			= dev;
-	priv->snd_card.dai_link			= priv->dai_link;
-	priv->snd_card.num_links		= num;
-	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");
-	}
-
-	/* sampling rate convert */
-	of_property_read_u32(node, "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);
-
-	ret = rsrc_card_dai_link_of(node, priv);
-	if (ret < 0)
-		return ret;
-
-	ret = asoc_simple_card_parse_card_name(&priv->snd_card, "card-");
-	if (ret < 0)
-		return ret;
-
-	return 0;
-}
-
-/* Decrease the reference count of the device nodes */
-static int rsrc_card_unref(struct snd_soc_card *card)
-{
-	struct snd_soc_dai_link *dai_link;
-	int num_links;
-
-	for (num_links = 0, dai_link = card->dai_link;
-	     num_links < card->num_links;
-	     num_links++, dai_link++) {
-		of_node_put(dai_link->cpu_of_node);
-		of_node_put(dai_link->codec_of_node);
-	}
-	return 0;
-}
-
-static int rsrc_card_probe(struct platform_device *pdev)
-{
-	struct rsrc_card_priv *priv;
-	struct device_node *np = pdev->dev.of_node;
-	struct device *dev = &pdev->dev;
-	int ret;
-
-	/* Allocate the private data */
-	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
-	if (!priv)
-		return -ENOMEM;
-
-	ret = rsrc_card_parse_of(np, priv, dev);
-	if (ret < 0) {
-		if (ret != -EPROBE_DEFER)
-			dev_err(dev, "parse error %d\n", ret);
-		goto err;
-	}
-
-	snd_soc_card_set_drvdata(&priv->snd_card, priv);
-
-	ret = devm_snd_soc_register_card(&pdev->dev, &priv->snd_card);
-	if (ret >= 0)
-		return ret;
-err:
-	rsrc_card_unref(&priv->snd_card);
-
-	return ret;
-}
-
-static int rsrc_card_remove(struct platform_device *pdev)
-{
-	struct snd_soc_card *card = platform_get_drvdata(pdev);
-
-	return rsrc_card_unref(card);
-}
-
-static struct platform_driver rsrc_card = {
-	.driver = {
-		.name = "renesas-src-audio-card",
-		.of_match_table = rsrc_card_of_match,
-	},
-	.probe = rsrc_card_probe,
-	.remove = rsrc_card_remove,
-};
-
-module_platform_driver(rsrc_card);
-
-MODULE_ALIAS("platform:renesas-src-audio-card");
-MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION("Renesas Sampling Rate Convert Sound Card");
-MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");