Adding upstream version 5.10.209.upstream/5.10.209upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

5 files changed, 2123 insertions, 0 deletions

diff --git a/sound/soc/generic/Kconfig b/sound/soc/generic/Kconfig
new file mode 100644
index 000000000..a90c3b28b
--- /dev/null
+++ b/sound/soc/generic/Kconfig
@@ -0,0 +1,19 @@
+# SPDX-License-Identifier: GPL-2.0-only
+config SND_SIMPLE_CARD_UTILS
+       tristate
+
+config SND_SIMPLE_CARD
+	tristate "ASoC Simple sound card support"
+	select SND_SIMPLE_CARD_UTILS
+	help
+	  This option enables generic simple sound card support
+	  It also support DPCM of multi CPU single Codec ststem.
+
+config SND_AUDIO_GRAPH_CARD
+	tristate "ASoC Audio Graph sound card support"
+	depends on OF
+	select SND_SIMPLE_CARD_UTILS
+	help
+	  This option enables generic simple sound card support
+	  with OF-graph DT bindings.
+	  It also support DPCM of multi CPU single Codec ststem.
diff --git a/sound/soc/generic/Makefile b/sound/soc/generic/Makefile
new file mode 100644
index 000000000..21c29e5e0
--- /dev/null
+++ b/sound/soc/generic/Makefile
@@ -0,0 +1,8 @@
+# SPDX-License-Identifier: GPL-2.0
+snd-soc-simple-card-utils-objs	:= simple-card-utils.o
+snd-soc-simple-card-objs	:= simple-card.o
+snd-soc-audio-graph-card-objs	:= audio-graph-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_AUDIO_GRAPH_CARD)	+= snd-soc-audio-graph-card.o
diff --git a/sound/soc/generic/audio-graph-card.c b/sound/soc/generic/audio-graph-card.c
new file mode 100644
index 000000000..84510ca0b
--- /dev/null
+++ b/sound/soc/generic/audio-graph-card.c
@@ -0,0 +1,717 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// ASoC audio graph sound card support
+//
+// Copyright (C) 2016 Renesas Solutions Corp.
+// Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
+//
+// based on ${LINUX}/sound/soc/generic/simple-card.c
+
+#include <linux/clk.h>
+#include <linux/device.h>
+#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/of_gpio.h>
+#include <linux/of_graph.h>
+#include <linux/platform_device.h>
+#include <linux/string.h>
+#include <sound/simple_card_utils.h>
+
+#define DPCM_SELECTABLE 1
+
+#define PREFIX	"audio-graph-card,"
+
+static int graph_outdrv_event(struct snd_soc_dapm_widget *w,
+			      struct snd_kcontrol *kcontrol,
+			      int event)
+{
+	struct snd_soc_dapm_context *dapm = w->dapm;
+	struct asoc_simple_priv *priv = snd_soc_card_get_drvdata(dapm->card);
+
+	switch (event) {
+	case SND_SOC_DAPM_POST_PMU:
+		gpiod_set_value_cansleep(priv->pa_gpio, 1);
+		break;
+	case SND_SOC_DAPM_PRE_PMD:
+		gpiod_set_value_cansleep(priv->pa_gpio, 0);
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static const struct snd_soc_dapm_widget graph_dapm_widgets[] = {
+	SND_SOC_DAPM_OUT_DRV_E("Amplifier", SND_SOC_NOPM,
+			       0, 0, NULL, 0, graph_outdrv_event,
+			       SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
+};
+
+static const struct snd_soc_ops graph_ops = {
+	.startup	= asoc_simple_startup,
+	.shutdown	= asoc_simple_shutdown,
+	.hw_params	= asoc_simple_hw_params,
+};
+
+static int graph_get_dai_id(struct device_node *ep)
+{
+	struct device_node *node;
+	struct device_node *endpoint;
+	struct of_endpoint info;
+	int i, id;
+	const u32 *reg;
+	int ret;
+
+	/* use driver specified DAI ID if exist */
+	ret = snd_soc_get_dai_id(ep);
+	if (ret != -ENOTSUPP)
+		return ret;
+
+	/* use endpoint/port reg if exist */
+	ret = of_graph_parse_endpoint(ep, &info);
+	if (ret == 0) {
+		/*
+		 * Because it will count port/endpoint if it doesn't have "reg".
+		 * But, we can't judge whether it has "no reg", or "reg = <0>"
+		 * only of_graph_parse_endpoint().
+		 * We need to check "reg" property
+		 */
+		if (of_get_property(ep,   "reg", NULL))
+			return info.id;
+
+		node = of_get_parent(ep);
+		reg = of_get_property(node, "reg", NULL);
+		of_node_put(node);
+		if (reg)
+			return info.port;
+	}
+	node = of_graph_get_port_parent(ep);
+
+	/*
+	 * Non HDMI sound case, counting port/endpoint on its DT
+	 * is enough. Let's count it.
+	 */
+	i = 0;
+	id = -1;
+	for_each_endpoint_of_node(node, endpoint) {
+		if (endpoint == ep)
+			id = i;
+		i++;
+	}
+
+	of_node_put(node);
+
+	if (id < 0)
+		return -ENODEV;
+
+	return id;
+}
+
+static int asoc_simple_parse_dai(struct device_node *ep,
+				 struct snd_soc_dai_link_component *dlc,
+				 int *is_single_link)
+{
+	struct device_node *node;
+	struct of_phandle_args args;
+	int ret;
+
+	if (!ep)
+		return 0;
+
+	node = of_graph_get_port_parent(ep);
+
+	/* Get dai->name */
+	args.np		= node;
+	args.args[0]	= graph_get_dai_id(ep);
+	args.args_count	= (of_graph_get_endpoint_count(node) > 1);
+
+	/*
+	 * FIXME
+	 *
+	 * Here, dlc->dai_name is pointer to CPU/Codec DAI name.
+	 * If user unbinded CPU or Codec driver, but not for Sound Card,
+	 * dlc->dai_name is keeping unbinded CPU or Codec
+	 * driver's pointer.
+	 *
+	 * If user re-bind CPU or Codec driver again, ALSA SoC will try
+	 * to rebind Card via snd_soc_try_rebind_card(), but because of
+	 * above reason, it might can't bind Sound Card.
+	 * Because Sound Card is pointing to released dai_name pointer.
+	 *
+	 * To avoid this rebind Card issue,
+	 * 1) It needs to alloc memory to keep dai_name eventhough
+	 *    CPU or Codec driver was unbinded, or
+	 * 2) user need to rebind Sound Card everytime
+	 *    if he unbinded CPU or Codec.
+	 */
+	ret = snd_soc_get_dai_name(&args, &dlc->dai_name);
+	if (ret < 0) {
+		of_node_put(node);
+		return ret;
+	}
+
+	dlc->of_node = node;
+
+	if (is_single_link)
+		*is_single_link = of_graph_get_endpoint_count(node) == 1;
+
+	return 0;
+}
+
+static void graph_parse_convert(struct device *dev,
+				struct device_node *ep,
+				struct asoc_simple_data *adata)
+{
+	struct device_node *top = dev->of_node;
+	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);
+
+	asoc_simple_parse_convert(dev, top,   NULL,   adata);
+	asoc_simple_parse_convert(dev, node,  PREFIX, adata);
+	asoc_simple_parse_convert(dev, ports, NULL,   adata);
+	asoc_simple_parse_convert(dev, port,  NULL,   adata);
+	asoc_simple_parse_convert(dev, ep,    NULL,   adata);
+
+	of_node_put(port);
+	of_node_put(ports);
+	of_node_put(node);
+}
+
+static void graph_parse_mclk_fs(struct device_node *top,
+				struct device_node *ep,
+				struct simple_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 asoc_simple_priv *priv,
+				  struct device_node *cpu_ep,
+				  struct device_node *codec_ep,
+				  struct link_info *li,
+				  int dup_codec)
+{
+	struct device *dev = simple_priv_to_dev(priv);
+	struct snd_soc_dai_link *dai_link = simple_priv_to_link(priv, li->link);
+	struct simple_dai_props *dai_props = simple_priv_to_props(priv, li->link);
+	struct device_node *top = dev->of_node;
+	struct device_node *ep = li->cpu ? cpu_ep : codec_ep;
+	struct device_node *port;
+	struct device_node *ports;
+	struct device_node *node;
+	struct asoc_simple_dai *dai;
+	struct snd_soc_dai_link_component *cpus = dai_link->cpus;
+	struct snd_soc_dai_link_component *codecs = dai_link->codecs;
+	int ret;
+
+	/* Do it all CPU endpoint, and 1st Codec endpoint */
+	if (!li->cpu && dup_codec)
+		return 0;
+
+	port	= of_get_parent(ep);
+	ports	= of_get_parent(port);
+	node	= of_graph_get_port_parent(ep);
+
+	li->link++;
+
+	dev_dbg(dev, "link_of DPCM (%pOF)\n", ep);
+
+	if (li->cpu) {
+		int is_single_links = 0;
+
+		/* Codec is dummy */
+		codecs->of_node		= NULL;
+		codecs->dai_name	= "snd-soc-dummy-dai";
+		codecs->name		= "snd-soc-dummy";
+
+		/* FE settings */
+		dai_link->dynamic		= 1;
+		dai_link->dpcm_merged_format	= 1;
+
+		dai =
+		dai_props->cpu_dai	= &priv->dais[li->dais++];
+
+		ret = asoc_simple_parse_cpu(ep, dai_link, &is_single_links);
+		if (ret)
+			goto out_put_node;
+
+		ret = asoc_simple_parse_clk_cpu(dev, ep, dai_link, dai);
+		if (ret < 0)
+			goto out_put_node;
+
+		ret = asoc_simple_set_dailink_name(dev, dai_link,
+						   "fe.%s",
+						   cpus->dai_name);
+		if (ret < 0)
+			goto out_put_node;
+
+		/* card->num_links includes Codec */
+		asoc_simple_canonicalize_cpu(dai_link, is_single_links);
+	} else {
+		struct snd_soc_codec_conf *cconf;
+
+		/* CPU is dummy */
+		cpus->of_node		= NULL;
+		cpus->dai_name		= "snd-soc-dummy-dai";
+		cpus->name		= "snd-soc-dummy";
+
+		/* BE settings */
+		dai_link->no_pcm		= 1;
+		dai_link->be_hw_params_fixup	= asoc_simple_be_hw_params_fixup;
+
+		dai =
+		dai_props->codec_dai	= &priv->dais[li->dais++];
+
+		cconf =
+		dai_props->codec_conf	= &priv->codec_conf[li->conf++];
+
+		ret = asoc_simple_parse_codec(ep, dai_link);
+		if (ret < 0)
+			goto out_put_node;
+
+		ret = asoc_simple_parse_clk_codec(dev, ep, dai_link, dai);
+		if (ret < 0)
+			goto out_put_node;
+
+		ret = asoc_simple_set_dailink_name(dev, dai_link,
+						   "be.%s",
+						   codecs->dai_name);
+		if (ret < 0)
+			goto out_put_node;
+
+		/* check "prefix" from top node */
+		snd_soc_of_parse_node_prefix(top, cconf, codecs->of_node,
+					      "prefix");
+		snd_soc_of_parse_node_prefix(node, cconf, codecs->of_node,
+					     PREFIX "prefix");
+		snd_soc_of_parse_node_prefix(ports, cconf, codecs->of_node,
+					     "prefix");
+		snd_soc_of_parse_node_prefix(port, cconf, codecs->of_node,
+					     "prefix");
+	}
+
+	graph_parse_convert(dev, ep, &dai_props->adata);
+	graph_parse_mclk_fs(top, ep, dai_props);
+
+	asoc_simple_canonicalize_platform(dai_link);
+
+	ret = asoc_simple_parse_tdm(ep, dai);
+	if (ret)
+		goto out_put_node;
+
+	ret = asoc_simple_parse_daifmt(dev, cpu_ep, codec_ep,
+				       NULL, &dai_link->dai_fmt);
+	if (ret < 0)
+		goto out_put_node;
+
+	snd_soc_dai_link_set_capabilities(dai_link);
+
+	dai_link->ops			= &graph_ops;
+	dai_link->init			= asoc_simple_dai_init;
+
+out_put_node:
+	of_node_put(ports);
+	of_node_put(port);
+	of_node_put(node);
+	return ret;
+}
+
+static int graph_dai_link_of(struct asoc_simple_priv *priv,
+			     struct device_node *cpu_ep,
+			     struct device_node *codec_ep,
+			     struct link_info *li)
+{
+	struct device *dev = simple_priv_to_dev(priv);
+	struct snd_soc_dai_link *dai_link = simple_priv_to_link(priv, li->link);
+	struct simple_dai_props *dai_props = simple_priv_to_props(priv, li->link);
+	struct device_node *top = dev->of_node;
+	struct asoc_simple_dai *cpu_dai;
+	struct asoc_simple_dai *codec_dai;
+	int ret, single_cpu = 0;
+
+	/* Do it only CPU turn */
+	if (!li->cpu)
+		return 0;
+
+	dev_dbg(dev, "link_of (%pOF)\n", cpu_ep);
+
+	li->link++;
+
+	cpu_dai			=
+	dai_props->cpu_dai	= &priv->dais[li->dais++];
+	codec_dai		=
+	dai_props->codec_dai	= &priv->dais[li->dais++];
+
+	/* Factor to mclk, used in hw_params() */
+	graph_parse_mclk_fs(top, cpu_ep,   dai_props);
+	graph_parse_mclk_fs(top, codec_ep, dai_props);
+
+	ret = asoc_simple_parse_daifmt(dev, cpu_ep, codec_ep,
+				       NULL, &dai_link->dai_fmt);
+	if (ret < 0)
+		return ret;
+
+	ret = asoc_simple_parse_cpu(cpu_ep, dai_link, &single_cpu);
+	if (ret < 0)
+		return ret;
+
+	ret = asoc_simple_parse_codec(codec_ep, dai_link);
+	if (ret < 0)
+		return ret;
+
+	ret = asoc_simple_parse_tdm(cpu_ep, cpu_dai);
+	if (ret < 0)
+		return ret;
+
+	ret = asoc_simple_parse_tdm(codec_ep, codec_dai);
+	if (ret < 0)
+		return ret;
+
+	ret = asoc_simple_parse_clk_cpu(dev, cpu_ep, dai_link, cpu_dai);
+	if (ret < 0)
+		return ret;
+
+	ret = asoc_simple_parse_clk_codec(dev, codec_ep, dai_link, codec_dai);
+	if (ret < 0)
+		return ret;
+
+	ret = asoc_simple_set_dailink_name(dev, dai_link,
+					   "%s-%s",
+					   dai_link->cpus->dai_name,
+					   dai_link->codecs->dai_name);
+	if (ret < 0)
+		return ret;
+
+	dai_link->ops = &graph_ops;
+	dai_link->init = asoc_simple_dai_init;
+
+	asoc_simple_canonicalize_cpu(dai_link, single_cpu);
+	asoc_simple_canonicalize_platform(dai_link);
+
+	return 0;
+}
+
+static int graph_for_each_link(struct asoc_simple_priv *priv,
+			struct link_info *li,
+			int (*func_noml)(struct asoc_simple_priv *priv,
+					 struct device_node *cpu_ep,
+					 struct device_node *codec_ep,
+					 struct link_info *li),
+			int (*func_dpcm)(struct asoc_simple_priv *priv,
+					 struct device_node *cpu_ep,
+					 struct device_node *codec_ep,
+					 struct link_info *li, int dup_codec))
+{
+	struct of_phandle_iterator it;
+	struct device *dev = simple_priv_to_dev(priv);
+	struct device_node *node = dev->of_node;
+	struct device_node *cpu_port;
+	struct device_node *cpu_ep;
+	struct device_node *codec_ep;
+	struct device_node *codec_port;
+	struct device_node *codec_port_old = NULL;
+	struct asoc_simple_data adata;
+	uintptr_t dpcm_selectable = (uintptr_t)of_device_get_match_data(dev);
+	int rc, ret;
+
+	/* loop for all listed CPU port */
+	of_for_each_phandle(&it, rc, node, "dais", NULL, 0) {
+		cpu_port = it.node;
+		cpu_ep	 = NULL;
+
+		/* loop for all CPU endpoint */
+		while (1) {
+			cpu_ep = of_get_next_child(cpu_port, cpu_ep);
+			if (!cpu_ep)
+				break;
+
+			/* get codec */
+			codec_ep = of_graph_get_remote_endpoint(cpu_ep);
+			codec_port = of_get_parent(codec_ep);
+
+			/* get convert-xxx property */
+			memset(&adata, 0, sizeof(adata));
+			graph_parse_convert(dev, codec_ep, &adata);
+			graph_parse_convert(dev, cpu_ep,   &adata);
+
+			/*
+			 * It is DPCM
+			 * if Codec port has many endpoints,
+			 * or has convert-xxx property
+			 */
+			if (dpcm_selectable &&
+			    ((of_get_child_count(codec_port) > 1) ||
+			     adata.convert_rate || adata.convert_channels))
+				ret = func_dpcm(priv, cpu_ep, codec_ep, li,
+						(codec_port_old == codec_port));
+			/* else normal sound */
+			else
+				ret = func_noml(priv, cpu_ep, codec_ep, li);
+
+			of_node_put(codec_ep);
+			of_node_put(codec_port);
+
+			if (ret < 0) {
+				of_node_put(cpu_ep);
+				return ret;
+			}
+
+			codec_port_old = codec_port;
+		}
+	}
+
+	return 0;
+}
+
+static int graph_parse_of(struct asoc_simple_priv *priv)
+{
+	struct snd_soc_card *card = simple_priv_to_card(priv);
+	struct link_info li;
+	int ret;
+
+	ret = asoc_simple_parse_widgets(card, NULL);
+	if (ret < 0)
+		return ret;
+
+	ret = asoc_simple_parse_routing(card, NULL);
+	if (ret < 0)
+		return ret;
+
+	memset(&li, 0, sizeof(li));
+	for (li.cpu = 1; li.cpu >= 0; li.cpu--) {
+		/*
+		 * Detect all CPU first, and Detect all Codec 2nd.
+		 *
+		 * In Normal sound case, all DAIs are detected
+		 * as "CPU-Codec".
+		 *
+		 * In DPCM sound case,
+		 * all CPUs   are detected as "CPU-dummy", and
+		 * all Codecs are detected as "dummy-Codec".
+		 * To avoid random sub-device numbering,
+		 * detect "dummy-Codec" in last;
+		 */
+		ret = graph_for_each_link(priv, &li,
+					  graph_dai_link_of,
+					  graph_dai_link_of_dpcm);
+		if (ret < 0)
+			return ret;
+	}
+
+	return asoc_simple_parse_card_name(card, NULL);
+}
+
+static int graph_count_noml(struct asoc_simple_priv *priv,
+			    struct device_node *cpu_ep,
+			    struct device_node *codec_ep,
+			    struct link_info *li)
+{
+	struct device *dev = simple_priv_to_dev(priv);
+
+	li->link += 1; /* 1xCPU-Codec */
+	li->dais += 2; /* 1xCPU + 1xCodec */
+
+	dev_dbg(dev, "Count As Normal\n");
+
+	return 0;
+}
+
+static int graph_count_dpcm(struct asoc_simple_priv *priv,
+			    struct device_node *cpu_ep,
+			    struct device_node *codec_ep,
+			    struct link_info *li,
+			    int dup_codec)
+{
+	struct device *dev = simple_priv_to_dev(priv);
+
+	li->link++; /* 1xCPU-dummy */
+	li->dais++; /* 1xCPU */
+
+	if (!dup_codec) {
+		li->link++; /* 1xdummy-Codec */
+		li->conf++; /* 1xdummy-Codec */
+		li->dais++; /* 1xCodec */
+	}
+
+	dev_dbg(dev, "Count As DPCM\n");
+
+	return 0;
+}
+
+static void graph_get_dais_count(struct asoc_simple_priv *priv,
+				 struct link_info *li)
+{
+	struct device *dev = simple_priv_to_dev(priv);
+
+	/*
+	 * link_num :	number of links.
+	 *		CPU-Codec / CPU-dummy / dummy-Codec
+	 * dais_num :	number of DAIs
+	 * ccnf_num :	number of codec_conf
+	 *		same number for "dummy-Codec"
+	 *
+	 * ex1)
+	 * CPU0 --- Codec0	link : 5
+	 * CPU1 --- Codec1	dais : 7
+	 * CPU2 -/		ccnf : 1
+	 * CPU3 --- Codec2
+	 *
+	 *	=> 5 links = 2xCPU-Codec + 2xCPU-dummy + 1xdummy-Codec
+	 *	=> 7 DAIs  = 4xCPU + 3xCodec
+	 *	=> 1 ccnf  = 1xdummy-Codec
+	 *
+	 * ex2)
+	 * CPU0 --- Codec0	link : 5
+	 * CPU1 --- Codec1	dais : 6
+	 * CPU2 -/		ccnf : 1
+	 * CPU3 -/
+	 *
+	 *	=> 5 links = 1xCPU-Codec + 3xCPU-dummy + 1xdummy-Codec
+	 *	=> 6 DAIs  = 4xCPU + 2xCodec
+	 *	=> 1 ccnf  = 1xdummy-Codec
+	 *
+	 * ex3)
+	 * CPU0 --- Codec0	link : 6
+	 * CPU1 -/		dais : 6
+	 * CPU2 --- Codec1	ccnf : 2
+	 * CPU3 -/
+	 *
+	 *	=> 6 links = 0xCPU-Codec + 4xCPU-dummy + 2xdummy-Codec
+	 *	=> 6 DAIs  = 4xCPU + 2xCodec
+	 *	=> 2 ccnf  = 2xdummy-Codec
+	 *
+	 * ex4)
+	 * CPU0 --- Codec0 (convert-rate)	link : 3
+	 * CPU1 --- Codec1			dais : 4
+	 *					ccnf : 1
+	 *
+	 *	=> 3 links = 1xCPU-Codec + 1xCPU-dummy + 1xdummy-Codec
+	 *	=> 4 DAIs  = 2xCPU + 2xCodec
+	 *	=> 1 ccnf  = 1xdummy-Codec
+	 */
+	graph_for_each_link(priv, li,
+			    graph_count_noml,
+			    graph_count_dpcm);
+	dev_dbg(dev, "link %d, dais %d, ccnf %d\n",
+		li->link, li->dais, li->conf);
+}
+
+static int graph_card_probe(struct snd_soc_card *card)
+{
+	struct asoc_simple_priv *priv = snd_soc_card_get_drvdata(card);
+	int ret;
+
+	ret = asoc_simple_init_hp(card, &priv->hp_jack, NULL);
+	if (ret < 0)
+		return ret;
+
+	ret = asoc_simple_init_mic(card, &priv->mic_jack, NULL);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
+static int graph_probe(struct platform_device *pdev)
+{
+	struct asoc_simple_priv *priv;
+	struct device *dev = &pdev->dev;
+	struct snd_soc_card *card;
+	struct link_info li;
+	int ret;
+
+	/* Allocate the private data and the DAI link array */
+	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	card = simple_priv_to_card(priv);
+	card->owner		= THIS_MODULE;
+	card->dev		= dev;
+	card->dapm_widgets	= graph_dapm_widgets;
+	card->num_dapm_widgets	= ARRAY_SIZE(graph_dapm_widgets);
+	card->probe		= graph_card_probe;
+
+	memset(&li, 0, sizeof(li));
+	graph_get_dais_count(priv, &li);
+	if (!li.link || !li.dais)
+		return -EINVAL;
+
+	ret = asoc_simple_init_priv(priv, &li);
+	if (ret < 0)
+		return ret;
+
+	priv->pa_gpio = devm_gpiod_get_optional(dev, "pa", GPIOD_OUT_LOW);
+	if (IS_ERR(priv->pa_gpio)) {
+		ret = PTR_ERR(priv->pa_gpio);
+		dev_err(dev, "failed to get amplifier gpio: %d\n", ret);
+		return ret;
+	}
+
+	ret = graph_parse_of(priv);
+	if (ret < 0) {
+		if (ret != -EPROBE_DEFER)
+			dev_err(dev, "parse error %d\n", ret);
+		goto err;
+	}
+
+	snd_soc_card_set_drvdata(card, priv);
+
+	asoc_simple_debug_info(priv);
+
+	ret = devm_snd_soc_register_card(dev, card);
+	if (ret < 0)
+		goto err;
+
+	return 0;
+err:
+	asoc_simple_clean_reference(card);
+
+	return ret;
+}
+
+static int graph_remove(struct platform_device *pdev)
+{
+	struct snd_soc_card *card = platform_get_drvdata(pdev);
+
+	return asoc_simple_clean_reference(card);
+}
+
+static const struct of_device_id graph_of_match[] = {
+	{ .compatible = "audio-graph-card", },
+	{ .compatible = "audio-graph-scu-card",
+	  .data = (void *)DPCM_SELECTABLE },
+	{},
+};
+MODULE_DEVICE_TABLE(of, graph_of_match);
+
+static struct platform_driver graph_card = {
+	.driver = {
+		.name = "asoc-audio-graph-card",
+		.pm = &snd_soc_pm_ops,
+		.of_match_table = graph_of_match,
+	},
+	.probe = graph_probe,
+	.remove = graph_remove,
+};
+module_platform_driver(graph_card);
+
+MODULE_ALIAS("platform:asoc-audio-graph-card");
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("ASoC Audio Graph Sound Card");
+MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");
diff --git a/sound/soc/generic/simple-card-utils.c b/sound/soc/generic/simple-card-utils.c
new file mode 100644
index 000000000..d0d79f47b
--- /dev/null
+++ b/sound/soc/generic/simple-card-utils.c
@@ -0,0 +1,656 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// simple-card-utils.c
+//
+// Copyright (c) 2016 Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
+
+#include <linux/clk.h>
+#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_gpio.h>
+#include <linux/of_graph.h>
+#include <sound/jack.h>
+#include <sound/simple_card_utils.h>
+
+void asoc_simple_convert_fixup(struct asoc_simple_data *data,
+			       struct snd_pcm_hw_params *params)
+{
+	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 (data->convert_rate)
+		rate->min =
+		rate->max = data->convert_rate;
+
+	if (data->convert_channels)
+		channels->min =
+		channels->max = data->convert_channels;
+}
+EXPORT_SYMBOL_GPL(asoc_simple_convert_fixup);
+
+void asoc_simple_parse_convert(struct device *dev,
+			       struct device_node *np,
+			       char *prefix,
+			       struct asoc_simple_data *data)
+{
+	char prop[128];
+
+	if (!prefix)
+		prefix = "";
+
+	/* sampling rate convert */
+	snprintf(prop, sizeof(prop), "%s%s", prefix, "convert-rate");
+	of_property_read_u32(np, prop, &data->convert_rate);
+
+	/* channels transfer */
+	snprintf(prop, sizeof(prop), "%s%s", prefix, "convert-channels");
+	of_property_read_u32(np, prop, &data->convert_channels);
+}
+EXPORT_SYMBOL_GPL(asoc_simple_parse_convert);
+
+int asoc_simple_parse_daifmt(struct device *dev,
+			     struct device_node *node,
+			     struct device_node *codec,
+			     char *prefix,
+			     unsigned int *retfmt)
+{
+	struct device_node *bitclkmaster = NULL;
+	struct device_node *framemaster = NULL;
+	unsigned int daifmt;
+
+	daifmt = snd_soc_of_parse_daifmt(node, prefix,
+					 &bitclkmaster, &framemaster);
+	daifmt &= ~SND_SOC_DAIFMT_MASTER_MASK;
+
+	if (!bitclkmaster && !framemaster) {
+		/*
+		 * No dai-link level and master setting was not found from
+		 * sound node level, revert back to legacy DT parsing and
+		 * take the settings from codec node.
+		 */
+		dev_dbg(dev, "Revert to legacy daifmt parsing\n");
+
+		daifmt = snd_soc_of_parse_daifmt(codec, NULL, NULL, NULL) |
+			(daifmt & ~SND_SOC_DAIFMT_CLOCK_MASK);
+	} else {
+		if (codec == bitclkmaster)
+			daifmt |= (codec == framemaster) ?
+				SND_SOC_DAIFMT_CBM_CFM : SND_SOC_DAIFMT_CBM_CFS;
+		else
+			daifmt |= (codec == framemaster) ?
+				SND_SOC_DAIFMT_CBS_CFM : SND_SOC_DAIFMT_CBS_CFS;
+	}
+
+	of_node_put(bitclkmaster);
+	of_node_put(framemaster);
+
+	*retfmt = daifmt;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(asoc_simple_parse_daifmt);
+
+int asoc_simple_set_dailink_name(struct device *dev,
+				 struct snd_soc_dai_link *dai_link,
+				 const char *fmt, ...)
+{
+	va_list ap;
+	char *name = NULL;
+	int ret = -ENOMEM;
+
+	va_start(ap, fmt);
+	name = devm_kvasprintf(dev, GFP_KERNEL, fmt, ap);
+	va_end(ap);
+
+	if (name) {
+		ret = 0;
+
+		dai_link->name		= name;
+		dai_link->stream_name	= name;
+	}
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(asoc_simple_set_dailink_name);
+
+int asoc_simple_parse_card_name(struct snd_soc_card *card,
+				char *prefix)
+{
+	int ret;
+
+	if (!prefix)
+		prefix = "";
+
+	/* Parse the card name from DT */
+	ret = snd_soc_of_parse_card_name(card, "label");
+	if (ret < 0 || !card->name) {
+		char prop[128];
+
+		snprintf(prop, sizeof(prop), "%sname", prefix);
+		ret = snd_soc_of_parse_card_name(card, prop);
+		if (ret < 0)
+			return ret;
+	}
+
+	if (!card->name && card->dai_link)
+		card->name = card->dai_link->name;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(asoc_simple_parse_card_name);
+
+static int asoc_simple_clk_enable(struct asoc_simple_dai *dai)
+{
+	if (dai)
+		return clk_prepare_enable(dai->clk);
+
+	return 0;
+}
+
+static void asoc_simple_clk_disable(struct asoc_simple_dai *dai)
+{
+	if (dai)
+		clk_disable_unprepare(dai->clk);
+}
+
+int asoc_simple_parse_clk(struct device *dev,
+			  struct device_node *node,
+			  struct asoc_simple_dai *simple_dai,
+			  struct snd_soc_dai_link_component *dlc)
+{
+	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 = devm_get_clk_from_child(dev, node, NULL);
+	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 = devm_get_clk_from_child(dev, dlc->of_node, NULL);
+		if (!IS_ERR(clk))
+			simple_dai->sysclk = clk_get_rate(clk);
+	}
+
+	if (of_property_read_bool(node, "system-clock-direction-out"))
+		simple_dai->clk_direction = SND_SOC_CLOCK_OUT;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(asoc_simple_parse_clk);
+
+int asoc_simple_startup(struct snd_pcm_substream *substream)
+{
+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+	struct asoc_simple_priv *priv = snd_soc_card_get_drvdata(rtd->card);
+	struct simple_dai_props *dai_props = simple_priv_to_props(priv, rtd->num);
+	int ret;
+
+	ret = asoc_simple_clk_enable(dai_props->cpu_dai);
+	if (ret)
+		return ret;
+
+	ret = asoc_simple_clk_enable(dai_props->codec_dai);
+	if (ret)
+		asoc_simple_clk_disable(dai_props->cpu_dai);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(asoc_simple_startup);
+
+void asoc_simple_shutdown(struct snd_pcm_substream *substream)
+{
+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
+	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
+	struct asoc_simple_priv *priv = snd_soc_card_get_drvdata(rtd->card);
+	struct simple_dai_props *dai_props =
+		simple_priv_to_props(priv, rtd->num);
+
+	if (dai_props->mclk_fs) {
+		snd_soc_dai_set_sysclk(codec_dai, 0, 0, SND_SOC_CLOCK_IN);
+		snd_soc_dai_set_sysclk(cpu_dai, 0, 0, SND_SOC_CLOCK_OUT);
+	}
+
+	asoc_simple_clk_disable(dai_props->cpu_dai);
+
+	asoc_simple_clk_disable(dai_props->codec_dai);
+}
+EXPORT_SYMBOL_GPL(asoc_simple_shutdown);
+
+static int asoc_simple_set_clk_rate(struct asoc_simple_dai *simple_dai,
+				    unsigned long rate)
+{
+	if (!simple_dai)
+		return 0;
+
+	if (!simple_dai->clk)
+		return 0;
+
+	if (clk_get_rate(simple_dai->clk) == rate)
+		return 0;
+
+	return clk_set_rate(simple_dai->clk, rate);
+}
+
+int asoc_simple_hw_params(struct snd_pcm_substream *substream,
+			  struct snd_pcm_hw_params *params)
+{
+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
+	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
+	struct asoc_simple_priv *priv = snd_soc_card_get_drvdata(rtd->card);
+	struct simple_dai_props *dai_props =
+		simple_priv_to_props(priv, rtd->num);
+	unsigned int mclk, mclk_fs = 0;
+	int ret;
+
+	if (dai_props->mclk_fs)
+		mclk_fs = dai_props->mclk_fs;
+
+	if (mclk_fs) {
+		mclk = params_rate(params) * mclk_fs;
+
+		ret = asoc_simple_set_clk_rate(dai_props->codec_dai, mclk);
+		if (ret < 0)
+			return ret;
+
+		ret = asoc_simple_set_clk_rate(dai_props->cpu_dai, mclk);
+		if (ret < 0)
+			return ret;
+
+		ret = snd_soc_dai_set_sysclk(codec_dai, 0, mclk,
+					     SND_SOC_CLOCK_IN);
+		if (ret && ret != -ENOTSUPP)
+			goto err;
+
+		ret = snd_soc_dai_set_sysclk(cpu_dai, 0, mclk,
+					     SND_SOC_CLOCK_OUT);
+		if (ret && ret != -ENOTSUPP)
+			goto err;
+	}
+	return 0;
+err:
+	return ret;
+}
+EXPORT_SYMBOL_GPL(asoc_simple_hw_params);
+
+int asoc_simple_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
+				   struct snd_pcm_hw_params *params)
+{
+	struct asoc_simple_priv *priv = snd_soc_card_get_drvdata(rtd->card);
+	struct simple_dai_props *dai_props = simple_priv_to_props(priv, rtd->num);
+
+	asoc_simple_convert_fixup(&dai_props->adata, params);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(asoc_simple_be_hw_params_fixup);
+
+static int asoc_simple_init_dai(struct snd_soc_dai *dai,
+				     struct asoc_simple_dai *simple_dai)
+{
+	int ret;
+
+	if (!simple_dai)
+		return 0;
+
+	if (simple_dai->sysclk) {
+		ret = snd_soc_dai_set_sysclk(dai, 0, simple_dai->sysclk,
+					     simple_dai->clk_direction);
+		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;
+}
+
+static int asoc_simple_init_dai_link_params(struct snd_soc_pcm_runtime *rtd,
+					    struct simple_dai_props *dai_props)
+{
+	struct snd_soc_dai_link *dai_link = rtd->dai_link;
+	struct snd_soc_component *component;
+	struct snd_soc_pcm_stream *params;
+	struct snd_pcm_hardware hw;
+	int i, ret, stream;
+
+	/* Only codecs should have non_legacy_dai_naming set. */
+	for_each_rtd_components(rtd, i, component) {
+		if (!component->driver->non_legacy_dai_naming)
+			return 0;
+	}
+
+	/* Assumes the capabilities are the same for all supported streams */
+	for_each_pcm_streams(stream) {
+		ret = snd_soc_runtime_calc_hw(rtd, &hw, stream);
+		if (ret == 0)
+			break;
+	}
+
+	if (ret < 0) {
+		dev_err(rtd->dev, "simple-card: no valid dai_link params\n");
+		return ret;
+	}
+
+	params = devm_kzalloc(rtd->dev, sizeof(*params), GFP_KERNEL);
+	if (!params)
+		return -ENOMEM;
+
+	params->formats = hw.formats;
+	params->rates = hw.rates;
+	params->rate_min = hw.rate_min;
+	params->rate_max = hw.rate_max;
+	params->channels_min = hw.channels_min;
+	params->channels_max = hw.channels_max;
+
+	dai_link->params = params;
+	dai_link->num_params = 1;
+
+	return 0;
+}
+
+int asoc_simple_dai_init(struct snd_soc_pcm_runtime *rtd)
+{
+	struct asoc_simple_priv *priv = snd_soc_card_get_drvdata(rtd->card);
+	struct simple_dai_props *dai_props = simple_priv_to_props(priv, rtd->num);
+	int ret;
+
+	ret = asoc_simple_init_dai(asoc_rtd_to_codec(rtd, 0),
+				   dai_props->codec_dai);
+	if (ret < 0)
+		return ret;
+
+	ret = asoc_simple_init_dai(asoc_rtd_to_cpu(rtd, 0),
+				   dai_props->cpu_dai);
+	if (ret < 0)
+		return ret;
+
+	ret = asoc_simple_init_dai_link_params(rtd, dai_props);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(asoc_simple_dai_init);
+
+void asoc_simple_canonicalize_platform(struct snd_soc_dai_link *dai_link)
+{
+	/* Assumes platform == cpu */
+	if (!dai_link->platforms->of_node)
+		dai_link->platforms->of_node = dai_link->cpus->of_node;
+
+	/*
+	 * DPCM BE can be no platform.
+	 * Alloced memory will be waste, but not leak.
+	 */
+	if (!dai_link->platforms->of_node)
+		dai_link->num_platforms = 0;
+}
+EXPORT_SYMBOL_GPL(asoc_simple_canonicalize_platform);
+
+void asoc_simple_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->cpus->dai_name = NULL;
+}
+EXPORT_SYMBOL_GPL(asoc_simple_canonicalize_cpu);
+
+int asoc_simple_clean_reference(struct snd_soc_card *card)
+{
+	struct snd_soc_dai_link *dai_link;
+	int i;
+
+	for_each_card_prelinks(card, i, dai_link) {
+		of_node_put(dai_link->cpus->of_node);
+		of_node_put(dai_link->codecs->of_node);
+	}
+	return 0;
+}
+EXPORT_SYMBOL_GPL(asoc_simple_clean_reference);
+
+int asoc_simple_parse_routing(struct snd_soc_card *card,
+			      char *prefix)
+{
+	struct device_node *node = card->dev->of_node;
+	char prop[128];
+
+	if (!prefix)
+		prefix = "";
+
+	snprintf(prop, sizeof(prop), "%s%s", prefix, "routing");
+
+	if (!of_property_read_bool(node, prop))
+		return 0;
+
+	return snd_soc_of_parse_audio_routing(card, prop);
+}
+EXPORT_SYMBOL_GPL(asoc_simple_parse_routing);
+
+int asoc_simple_parse_widgets(struct snd_soc_card *card,
+			      char *prefix)
+{
+	struct device_node *node = card->dev->of_node;
+	char prop[128];
+
+	if (!prefix)
+		prefix = "";
+
+	snprintf(prop, sizeof(prop), "%s%s", prefix, "widgets");
+
+	if (of_property_read_bool(node, prop))
+		return snd_soc_of_parse_audio_simple_widgets(card, prop);
+
+	/* no widgets is not error */
+	return 0;
+}
+EXPORT_SYMBOL_GPL(asoc_simple_parse_widgets);
+
+int asoc_simple_parse_pin_switches(struct snd_soc_card *card,
+				   char *prefix)
+{
+	const unsigned int nb_controls_max = 16;
+	const char **strings, *control_name;
+	struct snd_kcontrol_new *controls;
+	struct device *dev = card->dev;
+	unsigned int i, nb_controls;
+	char prop[128];
+	int ret;
+
+	if (!prefix)
+		prefix = "";
+
+	snprintf(prop, sizeof(prop), "%s%s", prefix, "pin-switches");
+
+	if (!of_property_read_bool(dev->of_node, prop))
+		return 0;
+
+	strings = devm_kcalloc(dev, nb_controls_max,
+			       sizeof(*strings), GFP_KERNEL);
+	if (!strings)
+		return -ENOMEM;
+
+	ret = of_property_read_string_array(dev->of_node, prop,
+					    strings, nb_controls_max);
+	if (ret < 0)
+		return ret;
+
+	nb_controls = (unsigned int)ret;
+
+	controls = devm_kcalloc(dev, nb_controls,
+				sizeof(*controls), GFP_KERNEL);
+	if (!controls)
+		return -ENOMEM;
+
+	for (i = 0; i < nb_controls; i++) {
+		control_name = devm_kasprintf(dev, GFP_KERNEL,
+					      "%s Switch", strings[i]);
+		if (!control_name)
+			return -ENOMEM;
+
+		controls[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER;
+		controls[i].name = control_name;
+		controls[i].info = snd_soc_dapm_info_pin_switch;
+		controls[i].get = snd_soc_dapm_get_pin_switch;
+		controls[i].put = snd_soc_dapm_put_pin_switch;
+		controls[i].private_value = (unsigned long)strings[i];
+	}
+
+	card->controls = controls;
+	card->num_controls = nb_controls;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(asoc_simple_parse_pin_switches);
+
+int asoc_simple_init_jack(struct snd_soc_card *card,
+			  struct asoc_simple_jack *sjack,
+			  int is_hp, char *prefix,
+			  char *pin)
+{
+	struct device *dev = card->dev;
+	enum of_gpio_flags flags;
+	char prop[128];
+	char *pin_name;
+	char *gpio_name;
+	int mask;
+	int det;
+
+	if (!prefix)
+		prefix = "";
+
+	sjack->gpio.gpio = -ENOENT;
+
+	if (is_hp) {
+		snprintf(prop, sizeof(prop), "%shp-det-gpio", prefix);
+		pin_name	= pin ? pin : "Headphones";
+		gpio_name	= "Headphone detection";
+		mask		= SND_JACK_HEADPHONE;
+	} else {
+		snprintf(prop, sizeof(prop), "%smic-det-gpio", prefix);
+		pin_name	= pin ? pin : "Mic Jack";
+		gpio_name	= "Mic detection";
+		mask		= SND_JACK_MICROPHONE;
+	}
+
+	det = of_get_named_gpio_flags(dev->of_node, prop, 0, &flags);
+	if (det == -EPROBE_DEFER)
+		return -EPROBE_DEFER;
+
+	if (gpio_is_valid(det)) {
+		sjack->pin.pin		= pin_name;
+		sjack->pin.mask		= mask;
+
+		sjack->gpio.name	= gpio_name;
+		sjack->gpio.report	= mask;
+		sjack->gpio.gpio	= det;
+		sjack->gpio.invert	= !!(flags & OF_GPIO_ACTIVE_LOW);
+		sjack->gpio.debounce_time = 150;
+
+		snd_soc_card_jack_new(card, pin_name, mask,
+				      &sjack->jack,
+				      &sjack->pin, 1);
+
+		snd_soc_jack_add_gpios(&sjack->jack, 1,
+				       &sjack->gpio);
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(asoc_simple_init_jack);
+
+int asoc_simple_init_priv(struct asoc_simple_priv *priv,
+			  struct link_info *li)
+{
+	struct snd_soc_card *card = simple_priv_to_card(priv);
+	struct device *dev = simple_priv_to_dev(priv);
+	struct snd_soc_dai_link *dai_link;
+	struct simple_dai_props *dai_props;
+	struct asoc_simple_dai *dais;
+	struct snd_soc_codec_conf *cconf = NULL;
+	int i;
+
+	dai_props = devm_kcalloc(dev, li->link, sizeof(*dai_props), GFP_KERNEL);
+	dai_link  = devm_kcalloc(dev, li->link, sizeof(*dai_link),  GFP_KERNEL);
+	dais      = devm_kcalloc(dev, li->dais, sizeof(*dais),      GFP_KERNEL);
+	if (!dai_props || !dai_link || !dais)
+		return -ENOMEM;
+
+	if (li->conf) {
+		cconf = devm_kcalloc(dev, li->conf, sizeof(*cconf), GFP_KERNEL);
+		if (!cconf)
+			return -ENOMEM;
+	}
+
+	/*
+	 * Use snd_soc_dai_link_component instead of legacy style
+	 * It is codec only. but cpu/platform will be supported in the future.
+	 * see
+	 *	soc-core.c :: snd_soc_init_multicodec()
+	 *
+	 * "platform" might be removed
+	 * see
+	 *	simple-card-utils.c :: asoc_simple_canonicalize_platform()
+	 */
+	for (i = 0; i < li->link; i++) {
+		dai_link[i].cpus		= &dai_props[i].cpus;
+		dai_link[i].num_cpus		= 1;
+		dai_link[i].codecs		= &dai_props[i].codecs;
+		dai_link[i].num_codecs		= 1;
+		dai_link[i].platforms		= &dai_props[i].platforms;
+		dai_link[i].num_platforms	= 1;
+	}
+
+	priv->dai_props		= dai_props;
+	priv->dai_link		= dai_link;
+	priv->dais		= dais;
+	priv->codec_conf	= cconf;
+
+	card->dai_link		= priv->dai_link;
+	card->num_links		= li->link;
+	card->codec_conf	= cconf;
+	card->num_configs	= li->conf;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(asoc_simple_init_priv);
+
+/* Module information */
+MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");
+MODULE_DESCRIPTION("ALSA SoC Simple Card Utils");
+MODULE_LICENSE("GPL v2");
diff --git a/sound/soc/generic/simple-card.c b/sound/soc/generic/simple-card.c
new file mode 100644
index 000000000..8723d540a
--- /dev/null
+++ b/sound/soc/generic/simple-card.c
@@ -0,0 +1,723 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// ASoC simple sound card support
+//
+// Copyright (C) 2012 Renesas Solutions Corp.
+// Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
+
+#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/simple_card.h>
+#include <sound/soc-dai.h>
+#include <sound/soc.h>
+
+#define DPCM_SELECTABLE 1
+
+#define DAI	"sound-dai"
+#define CELL	"#sound-dai-cells"
+#define PREFIX	"simple-audio-card,"
+
+static const struct snd_soc_ops simple_ops = {
+	.startup	= asoc_simple_startup,
+	.shutdown	= asoc_simple_shutdown,
+	.hw_params	= asoc_simple_hw_params,
+};
+
+static int asoc_simple_parse_dai(struct device_node *node,
+				 struct snd_soc_dai_link_component *dlc,
+				 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, DAI, CELL, 0, &args);
+	if (ret)
+		return ret;
+
+	/*
+	 * FIXME
+	 *
+	 * Here, dlc->dai_name is pointer to CPU/Codec DAI name.
+	 * If user unbinded CPU or Codec driver, but not for Sound Card,
+	 * dlc->dai_name is keeping unbinded CPU or Codec
+	 * driver's pointer.
+	 *
+	 * If user re-bind CPU or Codec driver again, ALSA SoC will try
+	 * to rebind Card via snd_soc_try_rebind_card(), but because of
+	 * above reason, it might can't bind Sound Card.
+	 * Because Sound Card is pointing to released dai_name pointer.
+	 *
+	 * To avoid this rebind Card issue,
+	 * 1) It needs to alloc memory to keep dai_name eventhough
+	 *    CPU or Codec driver was unbinded, or
+	 * 2) user need to rebind Sound Card everytime
+	 *    if he unbinded CPU or Codec.
+	 */
+	ret = snd_soc_of_get_dai_name(node, &dlc->dai_name);
+	if (ret < 0)
+		return ret;
+
+	dlc->of_node = args.np;
+
+	if (is_single_link)
+		*is_single_link = !args.args_count;
+
+	return 0;
+}
+
+static void simple_parse_convert(struct device *dev,
+				 struct device_node *np,
+				 struct asoc_simple_data *adata)
+{
+	struct device_node *top = dev->of_node;
+	struct device_node *node = of_get_parent(np);
+
+	asoc_simple_parse_convert(dev, top,  PREFIX, adata);
+	asoc_simple_parse_convert(dev, node, PREFIX, adata);
+	asoc_simple_parse_convert(dev, node, NULL,   adata);
+	asoc_simple_parse_convert(dev, np,   NULL,   adata);
+
+	of_node_put(node);
+}
+
+static void simple_parse_mclk_fs(struct device_node *top,
+				 struct device_node *cpu,
+				 struct device_node *codec,
+				 struct simple_dai_props *props,
+				 char *prefix)
+{
+	struct device_node *node = of_get_parent(cpu);
+	char prop[128];
+
+	snprintf(prop, sizeof(prop), "%smclk-fs", PREFIX);
+	of_property_read_u32(top,	prop, &props->mclk_fs);
+
+	snprintf(prop, sizeof(prop), "%smclk-fs", prefix);
+	of_property_read_u32(node,	prop, &props->mclk_fs);
+	of_property_read_u32(cpu,	prop, &props->mclk_fs);
+	of_property_read_u32(codec,	prop, &props->mclk_fs);
+
+	of_node_put(node);
+}
+
+static int simple_dai_link_of_dpcm(struct asoc_simple_priv *priv,
+				   struct device_node *np,
+				   struct device_node *codec,
+				   struct link_info *li,
+				   bool is_top)
+{
+	struct device *dev = simple_priv_to_dev(priv);
+	struct snd_soc_dai_link *dai_link = simple_priv_to_link(priv, li->link);
+	struct simple_dai_props *dai_props = simple_priv_to_props(priv, li->link);
+	struct asoc_simple_dai *dai;
+	struct snd_soc_dai_link_component *cpus = dai_link->cpus;
+	struct snd_soc_dai_link_component *codecs = dai_link->codecs;
+	struct device_node *top = dev->of_node;
+	struct device_node *node = of_get_parent(np);
+	char *prefix = "";
+	int ret;
+
+	/*
+	 *	 |CPU   |Codec   : turn
+	 * CPU	 |Pass  |return
+	 * Codec |return|Pass
+	 * np
+	 */
+	if (li->cpu == (np == codec))
+		return 0;
+
+	dev_dbg(dev, "link_of DPCM (%pOF)\n", np);
+
+	li->link++;
+
+	/* For single DAI link & old style of DT node */
+	if (is_top)
+		prefix = PREFIX;
+
+	if (li->cpu) {
+		int is_single_links = 0;
+
+		/* Codec is dummy */
+		codecs->of_node		= NULL;
+		codecs->dai_name	= "snd-soc-dummy-dai";
+		codecs->name		= "snd-soc-dummy";
+
+		/* FE settings */
+		dai_link->dynamic		= 1;
+		dai_link->dpcm_merged_format	= 1;
+
+		dai =
+		dai_props->cpu_dai	= &priv->dais[li->dais++];
+
+		ret = asoc_simple_parse_cpu(np, dai_link, &is_single_links);
+		if (ret)
+			goto out_put_node;
+
+		ret = asoc_simple_parse_clk_cpu(dev, np, dai_link, dai);
+		if (ret < 0)
+			goto out_put_node;
+
+		ret = asoc_simple_set_dailink_name(dev, dai_link,
+						   "fe.%s",
+						   cpus->dai_name);
+		if (ret < 0)
+			goto out_put_node;
+
+		asoc_simple_canonicalize_cpu(dai_link, is_single_links);
+	} else {
+		struct snd_soc_codec_conf *cconf;
+
+		/* CPU is dummy */
+		cpus->of_node		= NULL;
+		cpus->dai_name		= "snd-soc-dummy-dai";
+		cpus->name		= "snd-soc-dummy";
+
+		/* BE settings */
+		dai_link->no_pcm		= 1;
+		dai_link->be_hw_params_fixup	= asoc_simple_be_hw_params_fixup;
+
+		dai =
+		dai_props->codec_dai	= &priv->dais[li->dais++];
+
+		cconf =
+		dai_props->codec_conf	= &priv->codec_conf[li->conf++];
+
+		ret = asoc_simple_parse_codec(np, dai_link);
+		if (ret < 0)
+			goto out_put_node;
+
+		ret = asoc_simple_parse_clk_codec(dev, np, dai_link, dai);
+		if (ret < 0)
+			goto out_put_node;
+
+		ret = asoc_simple_set_dailink_name(dev, dai_link,
+						   "be.%s",
+						   codecs->dai_name);
+		if (ret < 0)
+			goto out_put_node;
+
+		/* check "prefix" from top node */
+		snd_soc_of_parse_node_prefix(top, cconf, codecs->of_node,
+					      PREFIX "prefix");
+		snd_soc_of_parse_node_prefix(node, cconf, codecs->of_node,
+					     "prefix");
+		snd_soc_of_parse_node_prefix(np, cconf, codecs->of_node,
+					     "prefix");
+	}
+
+	simple_parse_convert(dev, np, &dai_props->adata);
+	simple_parse_mclk_fs(top, np, codec, dai_props, prefix);
+
+	asoc_simple_canonicalize_platform(dai_link);
+
+	ret = asoc_simple_parse_tdm(np, dai);
+	if (ret)
+		goto out_put_node;
+
+	ret = asoc_simple_parse_daifmt(dev, node, codec,
+				       prefix, &dai_link->dai_fmt);
+	if (ret < 0)
+		goto out_put_node;
+
+	snd_soc_dai_link_set_capabilities(dai_link);
+
+	dai_link->ops			= &simple_ops;
+	dai_link->init			= asoc_simple_dai_init;
+
+out_put_node:
+	of_node_put(node);
+	return ret;
+}
+
+static int simple_dai_link_of(struct asoc_simple_priv *priv,
+			      struct device_node *np,
+			      struct device_node *codec,
+			      struct link_info *li,
+			      bool is_top)
+{
+	struct device *dev = simple_priv_to_dev(priv);
+	struct snd_soc_dai_link *dai_link = simple_priv_to_link(priv, li->link);
+	struct simple_dai_props *dai_props = simple_priv_to_props(priv, li->link);
+	struct asoc_simple_dai *cpu_dai;
+	struct asoc_simple_dai *codec_dai;
+	struct device_node *top = dev->of_node;
+	struct device_node *cpu = NULL;
+	struct device_node *node = NULL;
+	struct device_node *plat = NULL;
+	char prop[128];
+	char *prefix = "";
+	int ret, single_cpu = 0;
+
+	/*
+	 *	 |CPU   |Codec   : turn
+	 * CPU	 |Pass  |return
+	 * Codec |return|return
+	 * np
+	 */
+	if (!li->cpu || np == codec)
+		return 0;
+
+	cpu  = np;
+	node = of_get_parent(np);
+	li->link++;
+
+	dev_dbg(dev, "link_of (%pOF)\n", node);
+
+	/* For single DAI link & old style of DT node */
+	if (is_top)
+		prefix = PREFIX;
+
+	snprintf(prop, sizeof(prop), "%splat", prefix);
+	plat = of_get_child_by_name(node, prop);
+
+	cpu_dai			=
+	dai_props->cpu_dai	= &priv->dais[li->dais++];
+	codec_dai		=
+	dai_props->codec_dai	= &priv->dais[li->dais++];
+
+	ret = asoc_simple_parse_daifmt(dev, node, codec,
+				       prefix, &dai_link->dai_fmt);
+	if (ret < 0)
+		goto dai_link_of_err;
+
+	simple_parse_mclk_fs(top, cpu, codec, dai_props, prefix);
+
+	ret = asoc_simple_parse_cpu(cpu, dai_link, &single_cpu);
+	if (ret < 0)
+		goto dai_link_of_err;
+
+	ret = asoc_simple_parse_codec(codec, dai_link);
+	if (ret < 0)
+		goto dai_link_of_err;
+
+	ret = asoc_simple_parse_platform(plat, dai_link);
+	if (ret < 0)
+		goto dai_link_of_err;
+
+	ret = asoc_simple_parse_tdm(cpu, cpu_dai);
+	if (ret < 0)
+		goto dai_link_of_err;
+
+	ret = asoc_simple_parse_tdm(codec, codec_dai);
+	if (ret < 0)
+		goto dai_link_of_err;
+
+	ret = asoc_simple_parse_clk_cpu(dev, cpu, dai_link, cpu_dai);
+	if (ret < 0)
+		goto dai_link_of_err;
+
+	ret = asoc_simple_parse_clk_codec(dev, codec, dai_link, codec_dai);
+	if (ret < 0)
+		goto dai_link_of_err;
+
+	ret = asoc_simple_set_dailink_name(dev, dai_link,
+					   "%s-%s",
+					   dai_link->cpus->dai_name,
+					   dai_link->codecs->dai_name);
+	if (ret < 0)
+		goto dai_link_of_err;
+
+	dai_link->ops = &simple_ops;
+	dai_link->init = asoc_simple_dai_init;
+
+	asoc_simple_canonicalize_cpu(dai_link, single_cpu);
+	asoc_simple_canonicalize_platform(dai_link);
+
+dai_link_of_err:
+	of_node_put(plat);
+	of_node_put(node);
+
+	return ret;
+}
+
+static int simple_for_each_link(struct asoc_simple_priv *priv,
+			struct link_info *li,
+			int (*func_noml)(struct asoc_simple_priv *priv,
+					 struct device_node *np,
+					 struct device_node *codec,
+					 struct link_info *li, bool is_top),
+			int (*func_dpcm)(struct asoc_simple_priv *priv,
+					 struct device_node *np,
+					 struct device_node *codec,
+					 struct link_info *li, bool is_top))
+{
+	struct device *dev = simple_priv_to_dev(priv);
+	struct device_node *top = dev->of_node;
+	struct device_node *node;
+	uintptr_t dpcm_selectable = (uintptr_t)of_device_get_match_data(dev);
+	bool is_top = 0;
+	int ret = 0;
+
+	/* Check if it has dai-link */
+	node = of_get_child_by_name(top, PREFIX "dai-link");
+	if (!node) {
+		node = of_node_get(top);
+		is_top = 1;
+	}
+
+	/* loop for all dai-link */
+	do {
+		struct asoc_simple_data adata;
+		struct device_node *codec;
+		struct device_node *plat;
+		struct device_node *np;
+		int num = of_get_child_count(node);
+
+		/* get codec */
+		codec = of_get_child_by_name(node, is_top ?
+					     PREFIX "codec" : "codec");
+		if (!codec) {
+			ret = -ENODEV;
+			goto error;
+		}
+		/* get platform */
+		plat = of_get_child_by_name(node, is_top ?
+					    PREFIX "plat" : "plat");
+
+		/* get convert-xxx property */
+		memset(&adata, 0, sizeof(adata));
+		for_each_child_of_node(node, np)
+			simple_parse_convert(dev, np, &adata);
+
+		/* loop for all CPU/Codec node */
+		for_each_child_of_node(node, np) {
+			if (plat == np)
+				continue;
+			/*
+			 * It is DPCM
+			 * if it has many CPUs,
+			 * or has convert-xxx property
+			 */
+			if (dpcm_selectable &&
+			    (num > 2 ||
+			     adata.convert_rate || adata.convert_channels))
+				ret = func_dpcm(priv, np, codec, li, is_top);
+			/* else normal sound */
+			else
+				ret = func_noml(priv, np, codec, li, is_top);
+
+			if (ret < 0) {
+				of_node_put(codec);
+				of_node_put(plat);
+				of_node_put(np);
+				goto error;
+			}
+		}
+
+		of_node_put(codec);
+		node = of_get_next_child(top, node);
+	} while (!is_top && node);
+
+ error:
+	of_node_put(node);
+	return ret;
+}
+
+static int simple_parse_of(struct asoc_simple_priv *priv)
+{
+	struct device *dev = simple_priv_to_dev(priv);
+	struct device_node *top = dev->of_node;
+	struct snd_soc_card *card = simple_priv_to_card(priv);
+	struct link_info li;
+	int ret;
+
+	if (!top)
+		return -EINVAL;
+
+	ret = asoc_simple_parse_widgets(card, PREFIX);
+	if (ret < 0)
+		return ret;
+
+	ret = asoc_simple_parse_routing(card, PREFIX);
+	if (ret < 0)
+		return ret;
+
+	ret = asoc_simple_parse_pin_switches(card, PREFIX);
+	if (ret < 0)
+		return ret;
+
+	/* Single/Muti DAI link(s) & New style of DT node */
+	memset(&li, 0, sizeof(li));
+	for (li.cpu = 1; li.cpu >= 0; li.cpu--) {
+		/*
+		 * Detect all CPU first, and Detect all Codec 2nd.
+		 *
+		 * In Normal sound case, all DAIs are detected
+		 * as "CPU-Codec".
+		 *
+		 * In DPCM sound case,
+		 * all CPUs   are detected as "CPU-dummy", and
+		 * all Codecs are detected as "dummy-Codec".
+		 * To avoid random sub-device numbering,
+		 * detect "dummy-Codec" in last;
+		 */
+		ret = simple_for_each_link(priv, &li,
+					   simple_dai_link_of,
+					   simple_dai_link_of_dpcm);
+		if (ret < 0)
+			return ret;
+	}
+
+	ret = asoc_simple_parse_card_name(card, PREFIX);
+	if (ret < 0)
+		return ret;
+
+	ret = snd_soc_of_parse_aux_devs(card, PREFIX "aux-devs");
+
+	return ret;
+}
+
+static int simple_count_noml(struct asoc_simple_priv *priv,
+			     struct device_node *np,
+			     struct device_node *codec,
+			     struct link_info *li, bool is_top)
+{
+	li->dais++; /* CPU or Codec */
+	if (np != codec)
+		li->link++; /* CPU-Codec */
+
+	return 0;
+}
+
+static int simple_count_dpcm(struct asoc_simple_priv *priv,
+			     struct device_node *np,
+			     struct device_node *codec,
+			     struct link_info *li, bool is_top)
+{
+	li->dais++; /* CPU or Codec */
+	li->link++; /* CPU-dummy or dummy-Codec */
+	if (np == codec)
+		li->conf++;
+
+	return 0;
+}
+
+static void simple_get_dais_count(struct asoc_simple_priv *priv,
+				  struct link_info *li)
+{
+	struct device *dev = simple_priv_to_dev(priv);
+	struct device_node *top = dev->of_node;
+
+	/*
+	 * link_num :	number of links.
+	 *		CPU-Codec / CPU-dummy / dummy-Codec
+	 * dais_num :	number of DAIs
+	 * ccnf_num :	number of codec_conf
+	 *		same number for "dummy-Codec"
+	 *
+	 * ex1)
+	 * CPU0 --- Codec0	link : 5
+	 * CPU1 --- Codec1	dais : 7
+	 * CPU2 -/		ccnf : 1
+	 * CPU3 --- Codec2
+	 *
+	 *	=> 5 links = 2xCPU-Codec + 2xCPU-dummy + 1xdummy-Codec
+	 *	=> 7 DAIs  = 4xCPU + 3xCodec
+	 *	=> 1 ccnf  = 1xdummy-Codec
+	 *
+	 * ex2)
+	 * CPU0 --- Codec0	link : 5
+	 * CPU1 --- Codec1	dais : 6
+	 * CPU2 -/		ccnf : 1
+	 * CPU3 -/
+	 *
+	 *	=> 5 links = 1xCPU-Codec + 3xCPU-dummy + 1xdummy-Codec
+	 *	=> 6 DAIs  = 4xCPU + 2xCodec
+	 *	=> 1 ccnf  = 1xdummy-Codec
+	 *
+	 * ex3)
+	 * CPU0 --- Codec0	link : 6
+	 * CPU1 -/		dais : 6
+	 * CPU2 --- Codec1	ccnf : 2
+	 * CPU3 -/
+	 *
+	 *	=> 6 links = 0xCPU-Codec + 4xCPU-dummy + 2xdummy-Codec
+	 *	=> 6 DAIs  = 4xCPU + 2xCodec
+	 *	=> 2 ccnf  = 2xdummy-Codec
+	 *
+	 * ex4)
+	 * CPU0 --- Codec0 (convert-rate)	link : 3
+	 * CPU1 --- Codec1			dais : 4
+	 *					ccnf : 1
+	 *
+	 *	=> 3 links = 1xCPU-Codec + 1xCPU-dummy + 1xdummy-Codec
+	 *	=> 4 DAIs  = 2xCPU + 2xCodec
+	 *	=> 1 ccnf  = 1xdummy-Codec
+	 */
+	if (!top) {
+		li->link = 1;
+		li->dais = 2;
+		li->conf = 0;
+		return;
+	}
+
+	simple_for_each_link(priv, li,
+			     simple_count_noml,
+			     simple_count_dpcm);
+
+	dev_dbg(dev, "link %d, dais %d, ccnf %d\n",
+		li->link, li->dais, li->conf);
+}
+
+static int simple_soc_probe(struct snd_soc_card *card)
+{
+	struct asoc_simple_priv *priv = snd_soc_card_get_drvdata(card);
+	int ret;
+
+	ret = asoc_simple_init_hp(card, &priv->hp_jack, PREFIX);
+	if (ret < 0)
+		return ret;
+
+	ret = asoc_simple_init_mic(card, &priv->mic_jack, PREFIX);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
+static int asoc_simple_probe(struct platform_device *pdev)
+{
+	struct asoc_simple_priv *priv;
+	struct device *dev = &pdev->dev;
+	struct device_node *np = dev->of_node;
+	struct snd_soc_card *card;
+	struct link_info li;
+	int ret;
+
+	/* Allocate the private data and the DAI link array */
+	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	card = simple_priv_to_card(priv);
+	card->owner		= THIS_MODULE;
+	card->dev		= dev;
+	card->probe		= simple_soc_probe;
+
+	memset(&li, 0, sizeof(li));
+	simple_get_dais_count(priv, &li);
+	if (!li.link || !li.dais)
+		return -EINVAL;
+
+	ret = asoc_simple_init_priv(priv, &li);
+	if (ret < 0)
+		return ret;
+
+	if (np && of_device_is_available(np)) {
+
+		ret = simple_parse_of(priv);
+		if (ret < 0) {
+			if (ret != -EPROBE_DEFER)
+				dev_err(dev, "parse error %d\n", ret);
+			goto err;
+		}
+
+	} else {
+		struct asoc_simple_card_info *cinfo;
+		struct snd_soc_dai_link_component *cpus;
+		struct snd_soc_dai_link_component *codecs;
+		struct snd_soc_dai_link_component *platform;
+		struct snd_soc_dai_link *dai_link = priv->dai_link;
+		struct simple_dai_props *dai_props = priv->dai_props;
+
+		int dai_idx = 0;
+
+		ret = -EINVAL;
+
+		cinfo = dev->platform_data;
+		if (!cinfo) {
+			dev_err(dev, "no info for asoc-simple-card\n");
+			goto err;
+		}
+
+		if (!cinfo->name ||
+		    !cinfo->codec_dai.name ||
+		    !cinfo->codec ||
+		    !cinfo->platform ||
+		    !cinfo->cpu_dai.name) {
+			dev_err(dev, "insufficient asoc_simple_card_info settings\n");
+			goto err;
+		}
+
+		dai_props->cpu_dai	= &priv->dais[dai_idx++];
+		dai_props->codec_dai	= &priv->dais[dai_idx++];
+
+		cpus			= dai_link->cpus;
+		cpus->dai_name		= cinfo->cpu_dai.name;
+
+		codecs			= dai_link->codecs;
+		codecs->name		= cinfo->codec;
+		codecs->dai_name	= cinfo->codec_dai.name;
+
+		platform		= dai_link->platforms;
+		platform->name		= cinfo->platform;
+
+		card->name		= (cinfo->card) ? cinfo->card : cinfo->name;
+		dai_link->name		= cinfo->name;
+		dai_link->stream_name	= cinfo->name;
+		dai_link->dai_fmt	= cinfo->daifmt;
+		dai_link->init		= asoc_simple_dai_init;
+		memcpy(dai_props->cpu_dai, &cinfo->cpu_dai,
+					sizeof(*dai_props->cpu_dai));
+		memcpy(dai_props->codec_dai, &cinfo->codec_dai,
+					sizeof(*dai_props->codec_dai));
+	}
+
+	snd_soc_card_set_drvdata(card, priv);
+
+	asoc_simple_debug_info(priv);
+
+	ret = devm_snd_soc_register_card(dev, card);
+	if (ret < 0)
+		goto err;
+
+	return 0;
+err:
+	asoc_simple_clean_reference(card);
+
+	return ret;
+}
+
+static int asoc_simple_remove(struct platform_device *pdev)
+{
+	struct snd_soc_card *card = platform_get_drvdata(pdev);
+
+	return asoc_simple_clean_reference(card);
+}
+
+static const struct of_device_id simple_of_match[] = {
+	{ .compatible = "simple-audio-card", },
+	{ .compatible = "simple-scu-audio-card",
+	  .data = (void *)DPCM_SELECTABLE },
+	{},
+};
+MODULE_DEVICE_TABLE(of, simple_of_match);
+
+static struct platform_driver asoc_simple_card = {
+	.driver = {
+		.name = "asoc-simple-card",
+		.pm = &snd_soc_pm_ops,
+		.of_match_table = simple_of_match,
+	},
+	.probe = asoc_simple_probe,
+	.remove = asoc_simple_remove,
+};
+
+module_platform_driver(asoc_simple_card);
+
+MODULE_ALIAS("platform:asoc-simple-card");
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("ASoC Simple Sound Card");
+MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");