Adding upstream version 6.6.15.upstream/6.6.15

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

9 files changed, 5164 insertions, 0 deletions

diff --git a/sound/soc/generic/Kconfig b/sound/soc/generic/Kconfig
new file mode 100644
index 000000000..b6df4e26b
--- /dev/null
+++ b/sound/soc/generic/Kconfig
@@ -0,0 +1,39 @@
+# 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.
+
+config SND_AUDIO_GRAPH_CARD2
+	tristate "ASoC Audio Graph sound card2 support"
+	depends on OF
+	select SND_SIMPLE_CARD_UTILS
+	help
+	  This option enables generic simple sound card2 support
+	  with OF-graph DT bindings.
+
+config SND_AUDIO_GRAPH_CARD2_CUSTOM_SAMPLE
+	tristate "ASoC Audio Graph Card2 base custom sample support"
+	depends on SND_AUDIO_GRAPH_CARD2
+	help
+	  This option enables Audio Graph Card2 base custom sample
+
+config SND_TEST_COMPONENT
+	tristate "ASoC Test component sound support"
+	depends on OF
+	help
+	  This option enables test component sound driver support.
diff --git a/sound/soc/generic/Makefile b/sound/soc/generic/Makefile
new file mode 100644
index 000000000..084862156
--- /dev/null
+++ b/sound/soc/generic/Makefile
@@ -0,0 +1,14 @@
+# 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
+snd-soc-audio-graph-card2-objs	:= audio-graph-card2.o
+snd-soc-audio-graph-card2-custom-sample-objs := audio-graph-card2-custom-sample.o
+snd-soc-test-component-objs	:= test-component.o
+
+obj-$(CONFIG_SND_SIMPLE_CARD_UTILS)	+= snd-soc-simple-card-utils.o
+obj-$(CONFIG_SND_SIMPLE_CARD)		+= snd-soc-simple-card.o
+obj-$(CONFIG_SND_AUDIO_GRAPH_CARD)	+= snd-soc-audio-graph-card.o
+obj-$(CONFIG_SND_AUDIO_GRAPH_CARD2)	+= snd-soc-audio-graph-card2.o
+obj-$(CONFIG_SND_AUDIO_GRAPH_CARD2_CUSTOM_SAMPLE) += snd-soc-audio-graph-card2-custom-sample.o
+obj-$(CONFIG_SND_TEST_COMPONENT)	+= snd-soc-test-component.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..844a2ef15
--- /dev/null
+++ b/sound/soc/generic/audio-graph-card.c
@@ -0,0 +1,656 @@
+// 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/graph_card.h>
+
+#define DPCM_SELECTABLE 1
+
+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 bool soc_component_is_pcm(struct snd_soc_dai_link_component *dlc)
+{
+	struct snd_soc_dai *dai = snd_soc_find_dai_with_mutex(dlc);
+
+	if (dai && (dai->component->driver->pcm_construct ||
+		    (dai->driver->ops && dai->driver->ops->pcm_new)))
+		return true;
+
+	return false;
+}
+
+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(top,   NULL,   adata);
+	if (of_node_name_eq(ports, "ports"))
+		asoc_simple_parse_convert(ports, NULL, adata);
+	asoc_simple_parse_convert(port,  NULL,   adata);
+	asoc_simple_parse_convert(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);
+
+	of_property_read_u32(top,	"mclk-fs", &props->mclk_fs);
+	if (of_node_name_eq(ports, "ports"))
+		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);
+}
+
+static int graph_parse_node(struct asoc_simple_priv *priv,
+			    struct device_node *ep,
+			    struct link_info *li,
+			    int *cpu)
+{
+	struct device *dev = simple_priv_to_dev(priv);
+	struct device_node *top = dev->of_node;
+	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 snd_soc_dai_link_component *dlc;
+	struct asoc_simple_dai *dai;
+	int ret;
+
+	if (cpu) {
+		dlc = asoc_link_to_cpu(dai_link, 0);
+		dai = simple_props_to_dai_cpu(dai_props, 0);
+	} else {
+		dlc = asoc_link_to_codec(dai_link, 0);
+		dai = simple_props_to_dai_codec(dai_props, 0);
+	}
+
+	graph_parse_mclk_fs(top, ep, dai_props);
+
+	ret = asoc_graph_parse_dai(dev, ep, dlc, cpu);
+	if (ret < 0)
+		return ret;
+
+	ret = asoc_simple_parse_tdm(ep, dai);
+	if (ret < 0)
+		return ret;
+
+	ret = asoc_simple_parse_clk(dev, ep, dai, dlc);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
+static int graph_link_init(struct asoc_simple_priv *priv,
+			   struct device_node *cpu_ep,
+			   struct device_node *codec_ep,
+			   struct link_info *li,
+			   char *name)
+{
+	struct device *dev = simple_priv_to_dev(priv);
+	struct snd_soc_dai_link *dai_link = simple_priv_to_link(priv, li->link);
+	int ret;
+
+	ret = asoc_simple_parse_daifmt(dev, cpu_ep, codec_ep,
+				       NULL, &dai_link->dai_fmt);
+	if (ret < 0)
+		return ret;
+
+	dai_link->init		= asoc_simple_dai_init;
+	dai_link->ops		= &graph_ops;
+	if (priv->ops)
+		dai_link->ops	= priv->ops;
+
+	return asoc_simple_set_dailink_name(dev, dai_link, name);
+}
+
+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)
+{
+	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;
+	char dai_name[64];
+	int ret;
+
+	dev_dbg(dev, "link_of DPCM (%pOF)\n", ep);
+
+	if (li->cpu) {
+		struct snd_soc_card *card = simple_priv_to_card(priv);
+		struct snd_soc_dai_link_component *cpus = asoc_link_to_cpu(dai_link, 0);
+		struct snd_soc_dai_link_component *platforms = asoc_link_to_platform(dai_link, 0);
+		int is_single_links = 0;
+
+		/* Codec is dummy */
+
+		/* FE settings */
+		dai_link->dynamic		= 1;
+		dai_link->dpcm_merged_format	= 1;
+
+		ret = graph_parse_node(priv, cpu_ep, li, &is_single_links);
+		if (ret)
+			return ret;
+
+		snprintf(dai_name, sizeof(dai_name),
+			 "fe.%pOFP.%s", cpus->of_node, cpus->dai_name);
+		/*
+		 * In BE<->BE connections it is not required to create
+		 * PCM devices at CPU end of the dai link and thus 'no_pcm'
+		 * flag needs to be set. It is useful when there are many
+		 * BE components and some of these have to be connected to
+		 * form a valid audio path.
+		 *
+		 * For example: FE <-> BE1 <-> BE2 <-> ... <-> BEn where
+		 * there are 'n' BE components in the path.
+		 */
+		if (card->component_chaining && !soc_component_is_pcm(cpus)) {
+			dai_link->no_pcm = 1;
+			dai_link->be_hw_params_fixup = asoc_simple_be_hw_params_fixup;
+		}
+
+		asoc_simple_canonicalize_cpu(cpus, is_single_links);
+		asoc_simple_canonicalize_platform(platforms, cpus);
+	} else {
+		struct snd_soc_codec_conf *cconf = simple_props_to_codec_conf(dai_props, 0);
+		struct snd_soc_dai_link_component *codecs = asoc_link_to_codec(dai_link, 0);
+		struct device_node *port;
+		struct device_node *ports;
+
+		/* CPU is dummy */
+
+		/* BE settings */
+		dai_link->no_pcm		= 1;
+		dai_link->be_hw_params_fixup	= asoc_simple_be_hw_params_fixup;
+
+		ret = graph_parse_node(priv, codec_ep, li, NULL);
+		if (ret < 0)
+			return ret;
+
+		snprintf(dai_name, sizeof(dai_name),
+			 "be.%pOFP.%s", codecs->of_node, codecs->dai_name);
+
+		/* check "prefix" from top node */
+		port = of_get_parent(ep);
+		ports = of_get_parent(port);
+		snd_soc_of_parse_node_prefix(top, cconf, codecs->of_node,
+					      "prefix");
+		if (of_node_name_eq(ports, "ports"))
+			snd_soc_of_parse_node_prefix(ports, cconf, codecs->of_node, "prefix");
+		snd_soc_of_parse_node_prefix(port, cconf, codecs->of_node,
+					     "prefix");
+
+		of_node_put(ports);
+		of_node_put(port);
+	}
+
+	graph_parse_convert(dev, ep, &dai_props->adata);
+
+	snd_soc_dai_link_set_capabilities(dai_link);
+
+	ret = graph_link_init(priv, cpu_ep, codec_ep, li, dai_name);
+
+	li->link++;
+
+	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 snd_soc_dai_link_component *cpus = asoc_link_to_cpu(dai_link, 0);
+	struct snd_soc_dai_link_component *codecs = asoc_link_to_codec(dai_link, 0);
+	struct snd_soc_dai_link_component *platforms = asoc_link_to_platform(dai_link, 0);
+	char dai_name[64];
+	int ret, is_single_links = 0;
+
+	dev_dbg(dev, "link_of (%pOF)\n", cpu_ep);
+
+	ret = graph_parse_node(priv, cpu_ep, li, &is_single_links);
+	if (ret < 0)
+		return ret;
+
+	ret = graph_parse_node(priv, codec_ep, li, NULL);
+	if (ret < 0)
+		return ret;
+
+	snprintf(dai_name, sizeof(dai_name),
+		 "%s-%s", cpus->dai_name, codecs->dai_name);
+
+	asoc_simple_canonicalize_cpu(cpus, is_single_links);
+	asoc_simple_canonicalize_platform(platforms, cpus);
+
+	ret = graph_link_init(priv, cpu_ep, codec_ep, li, dai_name);
+	if (ret < 0)
+		return ret;
+
+	li->link++;
+
+	return 0;
+}
+
+static inline bool parse_as_dpcm_link(struct asoc_simple_priv *priv,
+				      struct device_node *codec_port,
+				      struct asoc_simple_data *adata)
+{
+	if (priv->force_dpcm)
+		return true;
+
+	if (!priv->dpcm_selectable)
+		return false;
+
+	/*
+	 * It is DPCM
+	 * if Codec port has many endpoints,
+	 * or has convert-xxx property
+	 */
+	if ((of_get_child_count(codec_port) > 1) ||
+	    asoc_simple_is_convert_required(adata))
+		return true;
+
+	return false;
+}
+
+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))
+{
+	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;
+	int rc, ret = 0;
+
+	/* 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);
+
+			/* check if link requires DPCM parsing */
+			if (parse_as_dpcm_link(priv, codec_port, &adata)) {
+				/*
+				 * Codec endpoint can be NULL for pluggable audio HW.
+				 * Platform DT can populate the Codec endpoint depending on the
+				 * plugged HW.
+				 */
+				/* Do it all CPU endpoint, and 1st Codec endpoint */
+				if (li->cpu ||
+				    ((codec_port_old != codec_port) && codec_ep))
+					ret = func_dpcm(priv, cpu_ep, codec_ep, li);
+			/* else normal sound */
+			} else {
+				if (li->cpu)
+					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_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 ret;
+	/*
+	 * 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;
+	 */
+	for (li->cpu = 1; li->cpu >= 0; li->cpu--) {
+		ret = __graph_for_each_link(priv, li, func_noml, func_dpcm);
+		if (ret < 0)
+			break;
+	}
+
+	return ret;
+}
+
+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);
+
+	if (li->link >= SNDRV_MAX_LINKS) {
+		dev_err(dev, "too many links\n");
+		return -EINVAL;
+	}
+
+	/*
+	 * DON'T REMOVE platforms
+	 * see
+	 *	simple-card.c :: simple_count_noml()
+	 */
+	li->num[li->link].cpus		= 1;
+	li->num[li->link].platforms     = 1;
+
+	li->num[li->link].codecs	= 1;
+
+	li->link += 1; /* 1xCPU-Codec */
+
+	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)
+{
+	struct device *dev = simple_priv_to_dev(priv);
+
+	if (li->link >= SNDRV_MAX_LINKS) {
+		dev_err(dev, "too many links\n");
+		return -EINVAL;
+	}
+
+	if (li->cpu) {
+		/*
+		 * DON'T REMOVE platforms
+		 * see
+		 *	simple-card.c :: simple_count_noml()
+		 */
+		li->num[li->link].cpus		= 1;
+		li->num[li->link].platforms     = 1;
+
+		li->link++; /* 1xCPU-dummy */
+	} else {
+		li->num[li->link].codecs	= 1;
+
+		li->link++; /* 1xdummy-Codec */
+	}
+
+	dev_dbg(dev, "Count As DPCM\n");
+
+	return 0;
+}
+
+static int graph_get_dais_count(struct asoc_simple_priv *priv,
+				struct link_info *li)
+{
+	/*
+	 * 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
+	 */
+	return graph_for_each_link(priv, li,
+				   graph_count_noml,
+				   graph_count_dpcm);
+}
+
+int audio_graph_parse_of(struct asoc_simple_priv *priv, struct device *dev)
+{
+	struct snd_soc_card *card = simple_priv_to_card(priv);
+	struct link_info *li;
+	int ret;
+
+	li = devm_kzalloc(dev, sizeof(*li), GFP_KERNEL);
+	if (!li)
+		return -ENOMEM;
+
+	card->owner = THIS_MODULE;
+	card->dev = dev;
+
+	ret = graph_get_dais_count(priv, li);
+	if (ret < 0)
+		return ret;
+
+	if (!li->link)
+		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 = 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));
+	ret = graph_for_each_link(priv, li,
+				  graph_dai_link_of,
+				  graph_dai_link_of_dpcm);
+	if (ret < 0)
+		goto err;
+
+	ret = asoc_simple_parse_card_name(card, NULL);
+	if (ret < 0)
+		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;
+
+	devm_kfree(dev, li);
+	return 0;
+
+err:
+	asoc_simple_clean_reference(card);
+
+	return dev_err_probe(dev, ret, "parse error\n");
+}
+EXPORT_SYMBOL_GPL(audio_graph_parse_of);
+
+static int graph_probe(struct platform_device *pdev)
+{
+	struct asoc_simple_priv *priv;
+	struct device *dev = &pdev->dev;
+	struct snd_soc_card *card;
+
+	/* 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->dapm_widgets	= graph_dapm_widgets;
+	card->num_dapm_widgets	= ARRAY_SIZE(graph_dapm_widgets);
+	card->probe		= asoc_graph_card_probe;
+
+	if (of_device_get_match_data(dev))
+		priv->dpcm_selectable = 1;
+
+	return audio_graph_parse_of(priv, dev);
+}
+
+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 = asoc_simple_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/audio-graph-card2-custom-sample.c b/sound/soc/generic/audio-graph-card2-custom-sample.c
new file mode 100644
index 000000000..a3142be93
--- /dev/null
+++ b/sound/soc/generic/audio-graph-card2-custom-sample.c
@@ -0,0 +1,186 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// audio-graph-card2-custom-sample.c
+//
+// Copyright (C) 2020 Renesas Electronics Corp.
+// Copyright (C) 2020 Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
+//
+#include <linux/module.h>
+#include <linux/of_gpio.h>
+#include <linux/platform_device.h>
+#include <sound/graph_card.h>
+
+/*
+ * Custom driver can have own priv
+ * which includes asoc_simple_priv.
+ */
+struct custom_priv {
+	struct asoc_simple_priv simple_priv;
+
+	/* custom driver's own params */
+	int custom_params;
+};
+
+/* You can get custom_priv from simple_priv */
+#define simple_to_custom(simple) container_of((simple), struct custom_priv, simple_priv)
+
+static int custom_card_probe(struct snd_soc_card *card)
+{
+	struct asoc_simple_priv *simple_priv = snd_soc_card_get_drvdata(card);
+	struct custom_priv *custom_priv = simple_to_custom(simple_priv);
+	struct device *dev = simple_priv_to_dev(simple_priv);
+
+	dev_info(dev, "custom probe\n");
+
+	custom_priv->custom_params = 1;
+
+	/* you can use generic probe function */
+	return asoc_graph_card_probe(card);
+}
+
+static int custom_hook_pre(struct asoc_simple_priv *priv)
+{
+	struct device *dev = simple_priv_to_dev(priv);
+
+	/* You can custom before parsing */
+	dev_info(dev, "hook : %s\n", __func__);
+
+	return 0;
+}
+
+static int custom_hook_post(struct asoc_simple_priv *priv)
+{
+	struct device *dev = simple_priv_to_dev(priv);
+	struct snd_soc_card *card;
+
+	/* You can custom after parsing */
+	dev_info(dev, "hook : %s\n", __func__);
+
+	/* overwrite .probe sample */
+	card = simple_priv_to_card(priv);
+	card->probe = custom_card_probe;
+
+	return 0;
+}
+
+static int custom_normal(struct asoc_simple_priv *priv,
+			 struct device_node *lnk,
+			 struct link_info *li)
+{
+	struct device *dev = simple_priv_to_dev(priv);
+
+	/*
+	 * You can custom Normal parsing
+	 * before/affter audio_graph2_link_normal()
+	 */
+	dev_info(dev, "hook : %s\n", __func__);
+
+	return audio_graph2_link_normal(priv, lnk, li);
+}
+
+static int custom_dpcm(struct asoc_simple_priv *priv,
+		       struct device_node *lnk,
+		       struct link_info *li)
+{
+	struct device *dev = simple_priv_to_dev(priv);
+
+	/*
+	 * You can custom DPCM parsing
+	 * before/affter audio_graph2_link_dpcm()
+	 */
+	dev_info(dev, "hook : %s\n", __func__);
+
+	return audio_graph2_link_dpcm(priv, lnk, li);
+}
+
+static int custom_c2c(struct asoc_simple_priv *priv,
+		      struct device_node *lnk,
+		      struct link_info *li)
+{
+	struct device *dev = simple_priv_to_dev(priv);
+
+	/*
+	 * You can custom Codec2Codec parsing
+	 * before/affter audio_graph2_link_c2c()
+	 */
+	dev_info(dev, "hook : %s\n", __func__);
+
+	return audio_graph2_link_c2c(priv, lnk, li);
+}
+
+/*
+ * audio-graph-card2 has many hooks for your customizing.
+ */
+static struct graph2_custom_hooks custom_hooks = {
+	.hook_pre	= custom_hook_pre,
+	.hook_post	= custom_hook_post,
+	.custom_normal	= custom_normal,
+	.custom_dpcm	= custom_dpcm,
+	.custom_c2c	= custom_c2c,
+};
+
+static int custom_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 device *dev = simple_priv_to_dev(priv);
+
+	dev_info(dev, "custom startup\n");
+
+	return asoc_simple_startup(substream);
+}
+
+/* You can use custom ops */
+static const struct snd_soc_ops custom_ops = {
+	.startup	= custom_startup,
+	.shutdown	= asoc_simple_shutdown,
+	.hw_params	= asoc_simple_hw_params,
+};
+
+static int custom_probe(struct platform_device *pdev)
+{
+	struct custom_priv *custom_priv;
+	struct asoc_simple_priv *simple_priv;
+	struct device *dev = &pdev->dev;
+	int ret;
+
+	custom_priv = devm_kzalloc(dev, sizeof(*custom_priv), GFP_KERNEL);
+	if (!custom_priv)
+		return -ENOMEM;
+
+	simple_priv		= &custom_priv->simple_priv;
+	simple_priv->ops	= &custom_ops; /* customize dai_link ops */
+
+	/* "audio-graph-card2-custom-sample" is too long */
+	simple_priv->snd_card.name = "card2-custom";
+
+	/* use audio-graph-card2 parsing with own custom hooks */
+	ret = audio_graph2_parse_of(simple_priv, dev, &custom_hooks);
+	if (ret < 0)
+		return ret;
+
+	/* customize more if needed */
+
+	return 0;
+}
+
+static const struct of_device_id custom_of_match[] = {
+	{ .compatible = "audio-graph-card2-custom-sample", },
+	{},
+};
+MODULE_DEVICE_TABLE(of, custom_of_match);
+
+static struct platform_driver custom_card = {
+	.driver = {
+		.name = "audio-graph-card2-custom-sample",
+		.of_match_table = custom_of_match,
+	},
+	.probe	= custom_probe,
+	.remove	= asoc_simple_remove,
+};
+module_platform_driver(custom_card);
+
+MODULE_ALIAS("platform:asoc-audio-graph-card2-custom-sample");
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("ASoC Audio Graph Card2 Custom Sample");
+MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");
diff --git a/sound/soc/generic/audio-graph-card2-custom-sample.dtsi b/sound/soc/generic/audio-graph-card2-custom-sample.dtsi
new file mode 100644
index 000000000..8acaa2ddb
--- /dev/null
+++ b/sound/soc/generic/audio-graph-card2-custom-sample.dtsi
@@ -0,0 +1,400 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * audio-graph-card2-custom-sample.dtsi
+ *
+ * Copyright (C) 2020 Renesas Electronics Corp.
+ * Copyright (C) 2020 Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
+ *
+ * This sample indicates how to use audio-graph-card2 and its
+ * custom driver. "audio-graph-card2-custom-sample" is the custome driver
+ * which is using audio-graph-card2.
+ *
+ * You can easily use this sample by adding below line on your DT file,
+ * and add new CONFIG to your .config.
+ *
+ *	#include "../../../../../sound/soc/generic/audio-graph-card2-custom-sample.dtsi"
+ *
+ *	CONFIG_SND_AUDIO_GRAPH_CARD2
+ *	CONFIG_SND_AUDIO_GRAPH_CARD2_CUSTOM_SAMPLE
+ *	CONFIG_SND_TEST_COMPONENT
+ *
+ *
+ * You can indicate more detail each device behavior as debug if you modify
+ * "compatible" on each test-component. see below
+ *
+ *	test_cpu {
+ *	-	compatible = "test-cpu";
+ *	+	compatible = "test-cpu-verbose";
+ *		...
+ *	};
+ *
+ *	test_codec {
+ *	-	compatible = "test-codec";
+ *	+	compatible = "test-codec-verbose";
+ *		...
+ *	};
+ *
+ *
+ * Below sample doesn't use "format" property,
+ * because test-component driver (test-cpu/test-codec) is supporting
+ * snd_soc_dai_ops :: .auto_selectable_formats.
+ * see
+ *	snd_soc_runtime_get_dai_fmt()
+ *	linux/sound/soc/generic/test-component.c :: test_dai_formats
+ */
+/ {
+	/*
+	 * @ : used at links
+	 *
+	 * [Normal]
+	 *	cpu0 <-@-----------------> codec0
+	 *
+	 * [Semi-Multi]
+	 *
+	 * CPU:Codec = 1:N
+	 *
+	 *			+-+
+	 *	cpu7 <-@------->| |-> codec12
+	 *			| |-> codec13
+	 *			+-+
+	 *
+	 * [Multi-CPU/Codec]
+	 *		+-+		+-+
+	 *	cpu1 <--| |<-@--------->| |-> codec1
+	 *	cpu2 <--| |		| |-> codec2
+	 *		+-+		+-+
+	 *
+	 * [DPCM]
+	 *
+	 *	CPU3/CPU4 are converting rate to 44100
+	 *
+	 *	FE		BE
+	 *		  ****
+	 *	cpu3 <-@--*  *--@-> codec3
+	 *	cpu4 <-@--*  *  (44.1kHz)
+	 *		  ****
+	 *
+	 * [DPCM-Multi]
+	 *
+	 * --NOTE--
+	 * Multi-FE is not supported by ASoC.
+	 *
+	 *	FE		BE
+	 *		  ****	    +-+
+	 *	cpu5 <-@--*  *--@-> | | -> codec4
+	 *	cpu6 <-@--*  *	    | | -> codec5
+	 *		  ****	    +-+
+	 *
+	 * [Codec2Codec]
+	 *			   +-@-> codec6
+	 *			   |
+	 *			   +---> codec7
+	 *
+	 * [Codec2Codec-Multi]
+	 *
+	 * --NOTE--
+	 * Multi connect N:M is not supported by ASoC.
+	 *
+	 *				+-+
+	 *			   +-@->| |-> codec8
+	 *			   |	| |-> codec9
+	 *			   |	+-+
+	 *			   |	+-+
+	 *			   +--->| |-> codec10
+	 *				| |-> codec11
+	 *				+-+
+	 */
+	audio-graph-card2-custom-sample {
+		/*
+		 * You can use audio-graph-card2 directly by using
+		 *
+		 * compatible = "audio-graph-card2";
+		 */
+		compatible = "audio-graph-card2-custom-sample";
+
+			/* for [DPCM]		   */
+			/* BE			FE */
+		routing = "TC DAI3 Playback",	"DAI3 Playback",
+			  "TC DAI3 Playback",	"DAI4 Playback",
+			  "DAI3 Capture",	"TC DAI3 Capture",
+			  "DAI4 Capture",	"TC DAI3 Capture",
+			/* for [DPCM-Multi]	   */
+			/* BE			FE */
+			  "TC DAI4 Playback",	"DAI5 Playback",
+			  "TC DAI5 Playback",	"DAI5 Playback",
+			  "TC DAI4 Playback",	"DAI6 Playback",
+			  "TC DAI5 Playback",	"DAI6 Playback",
+			  "DAI5 Capture",	"TC DAI4 Capture",
+			  "DAI5 Capture",	"TC DAI5 Capture",
+			  "DAI6 Capture",	"TC DAI4 Capture",
+			  "DAI6 Capture",	"TC DAI5 Capture",
+			/* for [Codec2Codec] */
+			  "TC OUT",		"TC DAI7 Playback",
+			  "TC DAI6 Capture",	"TC IN",
+			/* for [Codec2Codec-Multi] */
+			  "TC OUT",		"TC DAI10 Playback",
+			  "TC DAI8 Capture",	"TC IN",
+			  "TC OUT",		"TC DAI11 Playback",
+			  "TC DAI9 Capture",	"TC IN";
+
+		links = <
+			/*
+			 * [Normal]: cpu side only
+			 * cpu0/codec0
+			 */
+			 &cpu0
+
+			/* [Semi-Multi] */
+			&sm0
+
+			/*
+			 * [Multi-CPU/Codec]: cpu side only
+			 * cpu1/cpu2/codec1/codec2
+			 */
+			 &mcpu0
+
+			/*
+			 * [DPCM]: both FE / BE
+			 * cpu3/cpu4/codec3
+			 */
+			 &fe00 &fe01 &be0
+
+			/*
+			 * [DPCM-Multi]: both FE / BE
+			 * cpu5/cpu6/codec4/codec5
+			 */
+			 &fe10 &fe11 &be1
+
+			/*
+			 * [Codec2Codec]: cpu side only
+			 * codec6/codec7
+			 */
+			 &c2c
+
+			/*
+			 * [Codec2Codec-Multi]: cpu side only
+			 * codec8/codec9/codec10/codec11
+			 */
+			 &c2c_m
+		>;
+
+		multi {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			ports@0 {
+				reg = <0>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+			/* [Multi-CPU] */
+			mcpu0:	port@0 { reg = <0>; mcpu0_ep: endpoint { remote-endpoint = <&mcodec0_ep>; }; };
+				port@1 { reg = <1>; mcpu1_ep: endpoint { remote-endpoint = <&cpu1_ep>;    }; };
+				port@2 { reg = <2>; mcpu2_ep: endpoint { remote-endpoint = <&cpu2_ep>;    }; };
+			};
+
+			/* [Multi-Codec] */
+			ports@1 {
+				reg = <1>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+				port@0 { reg = <0>; mcodec0_ep: endpoint { remote-endpoint = <&mcpu0_ep>;  }; };
+				port@1 { reg = <1>; mcodec1_ep: endpoint { remote-endpoint = <&codec1_ep>; }; };
+				port@2 { reg = <2>; mcodec2_ep: endpoint { remote-endpoint = <&codec2_ep>; }; };
+			};
+
+			/* [DPCM-Multi]::BE */
+			ports@2 {
+				reg = <2>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+				port@0 { reg = <0>; mbe_ep:  endpoint { remote-endpoint = <&be10_ep>;  }; };
+				port@1 { reg = <1>; mbe1_ep: endpoint { remote-endpoint = <&codec4_ep>; }; };
+				port@2 { reg = <2>; mbe2_ep: endpoint { remote-endpoint = <&codec5_ep>; }; };
+			};
+
+			/* [Codec2Codec-Multi]::CPU */
+			ports@3 {
+				reg = <3>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+				port@0 { reg = <0>; mc2c0_ep:  endpoint { remote-endpoint = <&c2cmf_ep>;  }; };
+				port@1 { reg = <1>; mc2c00_ep: endpoint { remote-endpoint = <&codec8_ep>; }; };
+				port@2 { reg = <2>; mc2c01_ep: endpoint { remote-endpoint = <&codec9_ep>; }; };
+			};
+
+			/* [Codec2Codec-Multi]::Codec */
+			ports@4 {
+				reg = <4>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+				port@0 { reg = <0>; mc2c1_ep:  endpoint { remote-endpoint = <&c2cmb_ep>;  }; };
+				port@1 { reg = <1>; mc2c10_ep: endpoint { remote-endpoint = <&codec10_ep>; }; };
+				port@2 { reg = <2>; mc2c11_ep: endpoint { remote-endpoint = <&codec11_ep>; }; };
+			};
+
+			/* [Semi-Multi] */
+			ports@5 {
+				reg = <5>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+				port@0 { reg = <0>; smcodec0_ep: endpoint { remote-endpoint = <&cpu7_ep>;    }; };
+				port@1 { reg = <1>; smcodec1_ep: endpoint { remote-endpoint = <&codec12_ep>; }; };
+				port@2 { reg = <2>; smcodec2_ep: endpoint { remote-endpoint = <&codec13_ep>; }; };
+			};
+		};
+
+		dpcm {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			ports@0 {
+				reg = <0>;
+
+				#address-cells = <1>;
+				#size-cells = <0>;
+			/* [DPCM]::FE */
+			fe00:	port@0 { reg = <0>; fe00_ep: endpoint { remote-endpoint = <&cpu3_ep>; }; };
+			fe01:	port@1 { reg = <1>; fe01_ep: endpoint { remote-endpoint = <&cpu4_ep>; }; };
+
+			/* [DPCM-Multi]::FE */
+			fe10:	port@2 { reg = <2>; fe10_ep: endpoint { remote-endpoint = <&cpu5_ep>; }; };
+			fe11:	port@3 { reg = <3>; fe11_ep: endpoint { remote-endpoint = <&cpu6_ep>; }; };
+			};
+
+			ports@1 {
+				reg = <1>;
+
+				#address-cells = <1>;
+				#size-cells = <0>;
+			/* [DPCM]::BE */
+			be0:	port@0 { reg = <0>; be00_ep: endpoint { remote-endpoint = <&codec3_ep>; }; };
+
+			/* [DPCM-Multi]::BE */
+			be1:	port@1 { reg = <1>; be10_ep: endpoint { remote-endpoint = <&mbe_ep>; }; };
+			};
+		};
+
+		codec2codec {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			/* [Codec2Codec] */
+			ports@0 {
+				reg = <0>;
+
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				/* use default settings */
+			c2c:	port@0 { reg = <0>; c2cf_ep: endpoint { remote-endpoint = <&codec6_ep>; }; };
+				port@1 { reg = <1>; c2cb_ep: endpoint { remote-endpoint = <&codec7_ep>; }; };
+			};
+
+			/* [Codec2Codec-Multi] */
+			ports@1 {
+				reg = <1>;
+
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				/* use original settings */
+				rate = <48000>;
+			c2c_m:	port@0 { reg = <0>; c2cmf_ep: endpoint { remote-endpoint = <&mc2c0_ep>; }; };
+				port@1 { reg = <1>; c2cmb_ep: endpoint { remote-endpoint = <&mc2c1_ep>; }; };
+			};
+		};
+	};
+
+	test_cpu {
+		/*
+		 * update compatible to indicate more detail behaviour
+		 * if you want. see test-compatible for more detail.
+		 *
+		 * ex)
+		 *	- compatible = "test-cpu";
+		 *	+ compatible = "test-cpu-verbose";
+		 */
+		compatible = "test-cpu";
+		ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			bitclock-master;
+			frame-master;
+			/* [Normal] */
+			cpu0: port@0 { reg = <0>; cpu0_ep: endpoint { remote-endpoint = <&codec0_ep>; }; };
+
+			/* [Multi-CPU] */
+			      port@1 { reg = <1>; cpu1_ep: endpoint { remote-endpoint = <&mcpu1_ep>; }; };
+			      port@2 { reg = <2>; cpu2_ep: endpoint { remote-endpoint = <&mcpu2_ep>; }; };
+
+			/* [DPCM]::FE */
+			      port@3 { reg = <3>; cpu3_ep: endpoint { remote-endpoint = <&fe00_ep>; }; };
+			      port@4 { reg = <4>; cpu4_ep: endpoint { remote-endpoint = <&fe01_ep>; }; };
+
+			/* [DPCM-Multi]::FE */
+			      port@5 { reg = <5>; cpu5_ep: endpoint { remote-endpoint = <&fe10_ep>; }; };
+			      port@6 { reg = <6>; cpu6_ep: endpoint { remote-endpoint = <&fe11_ep>; }; };
+
+			/* [Semi-Multi] */
+			sm0:  port@7 { reg = <7>; cpu7_ep: endpoint { remote-endpoint = <&smcodec0_ep>; }; };
+		};
+	};
+
+	test_codec {
+		/*
+		 * update compatible to indicate more detail behaviour
+		 * if you want. see test-compatible for more detail.
+		 *
+		 * ex)
+		 *	- compatible = "test-codec";
+		 *	+ compatible = "test-codec-verbose";
+		 */
+		compatible = "test-codec";
+		ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			/*
+			 * prefix can be added to *component*,
+			 * see audio-graph-card2::routing
+			 */
+			prefix = "TC";
+
+			/* [Normal] */
+			port@0  { reg = <0>; codec0_ep:  endpoint { remote-endpoint = <&cpu0_ep>; }; };
+
+			/* [Multi-Codec] */
+			port@1  { reg = <1>; codec1_ep:  endpoint { remote-endpoint = <&mcodec1_ep>; }; };
+			port@2  { reg = <2>; codec2_ep:  endpoint { remote-endpoint = <&mcodec2_ep>; }; };
+
+			/* [DPCM]::BE */
+			port@3  {
+				convert-rate = <44100>;
+				reg = <3>; codec3_ep:  endpoint { remote-endpoint = <&be00_ep>; };
+			};
+
+			/* [DPCM-Multi]::BE */
+			port@4  { reg = <4>; codec4_ep:  endpoint { remote-endpoint = <&mbe1_ep>; }; };
+			port@5  { reg = <5>; codec5_ep:  endpoint { remote-endpoint = <&mbe2_ep>; }; };
+
+			/* [Codec2Codec] */
+			port@6  { bitclock-master;
+				  frame-master;
+				  reg = <6>; codec6_ep:  endpoint { remote-endpoint = <&c2cf_ep>; }; };
+			port@7  { reg = <7>; codec7_ep:  endpoint { remote-endpoint = <&c2cb_ep>; }; };
+
+			/* [Codec2Codec-Multi] */
+			port@8  { bitclock-master;
+				  frame-master;
+				  reg = <8>;  codec8_ep:  endpoint { remote-endpoint = <&mc2c00_ep>; }; };
+			port@9  { reg = <9>;  codec9_ep:  endpoint { remote-endpoint = <&mc2c01_ep>; }; };
+			port@a  { reg = <10>; codec10_ep: endpoint { remote-endpoint = <&mc2c10_ep>; }; };
+			port@b  { reg = <11>; codec11_ep: endpoint { remote-endpoint = <&mc2c11_ep>; }; };
+
+			/* [Semi-Multi] */
+			port@c { reg = <12>; codec12_ep: endpoint { remote-endpoint = <&smcodec1_ep>; }; };
+			port@d { reg = <13>; codec13_ep: endpoint { remote-endpoint = <&smcodec2_ep>; }; };
+
+		};
+	};
+};
diff --git a/sound/soc/generic/audio-graph-card2.c b/sound/soc/generic/audio-graph-card2.c
new file mode 100644
index 000000000..b1c675c6b
--- /dev/null
+++ b/sound/soc/generic/audio-graph-card2.c
@@ -0,0 +1,1236 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// ASoC Audio Graph Card2 support
+//
+// Copyright (C) 2020 Renesas Electronics Corp.
+// Copyright (C) 2020 Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
+//
+// based on ${LINUX}/sound/soc/generic/audio-graph-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/graph_card.h>
+
+/************************************
+	daifmt
+ ************************************
+	ports {
+		format = "left_j";
+		port@0 {
+			bitclock-master;
+			sample0: endpoint@0 {
+				frame-master;
+			};
+			sample1: endpoint@1 {
+				format = "i2s";
+			};
+		};
+		...
+	};
+
+ You can set daifmt at ports/port/endpoint.
+ It uses *latest* format, and *share* master settings.
+ In above case,
+	sample0: left_j, bitclock-master, frame-master
+	sample1: i2s,    bitclock-master
+
+ If there was no settings, *Codec* will be
+ bitclock/frame provider as default.
+ see
+	graph_parse_daifmt().
+
+ "format" property is no longer needed on DT if both CPU/Codec drivers are
+ supporting snd_soc_dai_ops :: .auto_selectable_formats.
+ see
+	snd_soc_runtime_get_dai_fmt()
+
+	sample driver
+		linux/sound/soc/sh/rcar/core.c
+		linux/sound/soc/codecs/ak4613.c
+		linux/sound/soc/codecs/pcm3168a.c
+		linux/sound/soc/soc-utils.c
+		linux/sound/soc/generic/test-component.c
+
+ ************************************
+	Normal Audio-Graph
+ ************************************
+
+ CPU <---> Codec
+
+ sound {
+	compatible = "audio-graph-card2";
+	links = <&cpu>;
+ };
+
+ CPU {
+	cpu: port {
+		bitclock-master;
+		frame-master;
+		cpu_ep: endpoint { remote-endpoint = <&codec_ep>; }; };
+ };
+
+ Codec {
+	port {	codec_ep: endpoint { remote-endpoint = <&cpu_ep>; }; };
+ };
+
+ ************************************
+	Multi-CPU/Codec
+ ************************************
+
+It has connection part (= X) and list part (= y).
+links indicates connection part of CPU side (= A).
+
+	    +-+   (A)	     +-+
+ CPU1 --(y) | | <-(X)--(X)-> | | (y)-- Codec1
+ CPU2 --(y) | |		     | | (y)-- Codec2
+	    +-+		     +-+
+
+	sound {
+		compatible = "audio-graph-card2";
+
+(A)		links = <&mcpu>;
+
+		multi {
+			ports@0 {
+(X) (A)			mcpu:	port@0 { mcpu0_ep: endpoint { remote-endpoint = <&mcodec0_ep>; }; };
+(y)				port@1 { mcpu1_ep: endpoint { remote-endpoint = <&cpu1_ep>; }; };
+(y)				port@2 { mcpu2_ep: endpoint { remote-endpoint = <&cpu2_ep>; }; };
+			};
+			ports@1 {
+(X)				port@0 { mcodec0_ep: endpoint { remote-endpoint = <&mcpu0_ep>; }; };
+(y)				port@1 { mcodec1_ep: endpoint { remote-endpoint = <&codec1_ep>; }; };
+(y)				port@2 { mcodec2_ep: endpoint { remote-endpoint = <&codec2_ep>; }; };
+			};
+		};
+	};
+
+ CPU {
+	ports {
+		bitclock-master;
+		frame-master;
+		port@0 { cpu1_ep: endpoint { remote-endpoint = <&mcpu1_ep>; }; };
+		port@1 { cpu2_ep: endpoint { remote-endpoint = <&mcpu2_ep>; }; };
+	};
+ };
+
+ Codec {
+	ports {
+		port@0 { codec1_ep: endpoint { remote-endpoint = <&mcodec1_ep>; }; };
+		port@1 { codec2_ep: endpoint { remote-endpoint = <&mcodec2_ep>; }; };
+	};
+ };
+
+ ************************************
+	DPCM
+ ************************************
+
+		DSP
+	   ************
+ PCM0 <--> * fe0  be0 * <--> DAI0: Codec Headset
+ PCM1 <--> * fe1  be1 * <--> DAI1: Codec Speakers
+ PCM2 <--> * fe2  be2 * <--> DAI2: MODEM
+ PCM3 <--> * fe3  be3 * <--> DAI3: BT
+	   *	  be4 * <--> DAI4: DMIC
+	   *	  be5 * <--> DAI5: FM
+	   ************
+
+ sound {
+	compatible = "audio-graph-card2";
+
+	// indicate routing
+	routing = "xxx Playback", "xxx Playback",
+		  "xxx Playback", "xxx Playback",
+		  "xxx Playback", "xxx Playback";
+
+	// indicate all Front-End, Back-End
+	links = <&fe0, &fe1, ...,
+		 &be0, &be1, ...>;
+
+	dpcm {
+		// Front-End
+		ports@0 {
+			fe0: port@0 { fe0_ep: endpoint { remote-endpoint = <&pcm0_ep>; }; };
+			fe1: port@1 { fe1_ep: endpoint { remote-endpoint = <&pcm1_ep>; }; };
+			...
+		};
+		// Back-End
+		ports@1 {
+			be0: port@0 { be0_ep: endpoint { remote-endpoint = <&dai0_ep>; }; };
+			be1: port@1 { be1_ep: endpoint { remote-endpoint = <&dai1_ep>; }; };
+			...
+		};
+	};
+ };
+
+ CPU {
+	ports {
+		bitclock-master;
+		frame-master;
+		port@0 { pcm0_ep: endpoint { remote-endpoint = <&fe0_ep>; }; };
+		port@1 { pcm1_ep: endpoint { remote-endpoint = <&fe1_ep>; }; };
+		...
+	};
+ };
+
+ Codec {
+	ports {
+		port@0 { dai0_ep: endpoint { remote-endpoint = <&be0_ep>; }; };
+		port@1 { dai1_ep: endpoint { remote-endpoint = <&be1_ep>; }; };
+		...
+	};
+ };
+
+ ************************************
+	Codec to Codec
+ ************************************
+
+ +--+
+ |  |<-- Codec0 <- IN
+ |  |--> Codec1 -> OUT
+ +--+
+
+ sound {
+	compatible = "audio-graph-card2";
+
+	routing = "OUT" ,"DAI1 Playback",
+		  "DAI0 Capture", "IN";
+
+	links = <&c2c>;
+
+	codec2codec {
+		ports {
+			rate = <48000>;
+		c2c:	port@0 { c2cf_ep: endpoint { remote-endpoint = <&codec0_ep>; }; };
+			port@1 { c2cb_ep: endpoint { remote-endpoint = <&codec1_ep>; }; };
+	};
+ };
+
+ Codec {
+	ports {
+		port@0 {
+			bitclock-master;
+			frame-master;
+			 codec0_ep: endpoint { remote-endpoint = <&c2cf_ep>; }; };
+		port@1 { codec1_ep: endpoint { remote-endpoint = <&c2cb_ep>; }; };
+	};
+ };
+
+*/
+
+enum graph_type {
+	GRAPH_NORMAL,
+	GRAPH_DPCM,
+	GRAPH_C2C,
+
+	GRAPH_MULTI,	/* don't use ! Use this only in __graph_get_type() */
+};
+
+#define GRAPH_NODENAME_MULTI	"multi"
+#define GRAPH_NODENAME_DPCM	"dpcm"
+#define GRAPH_NODENAME_C2C	"codec2codec"
+
+#define port_to_endpoint(port) of_get_child_by_name(port, "endpoint")
+
+static enum graph_type __graph_get_type(struct device_node *lnk)
+{
+	struct device_node *np, *parent_np;
+	enum graph_type ret;
+
+	/*
+	 * target {
+	 *	ports {
+	 * =>		lnk:	port@0 { ... };
+	 *			port@1 { ... };
+	 *	};
+	 * };
+	 */
+	np = of_get_parent(lnk);
+	if (of_node_name_eq(np, "ports")) {
+		parent_np = of_get_parent(np);
+		of_node_put(np);
+		np = parent_np;
+	}
+
+	if (of_node_name_eq(np, GRAPH_NODENAME_MULTI)) {
+		ret = GRAPH_MULTI;
+		goto out_put;
+	}
+
+	if (of_node_name_eq(np, GRAPH_NODENAME_DPCM)) {
+		ret = GRAPH_DPCM;
+		goto out_put;
+	}
+
+	if (of_node_name_eq(np, GRAPH_NODENAME_C2C)) {
+		ret = GRAPH_C2C;
+		goto out_put;
+	}
+
+	ret = GRAPH_NORMAL;
+
+out_put:
+	of_node_put(np);
+	return ret;
+
+}
+
+static enum graph_type graph_get_type(struct asoc_simple_priv *priv,
+				      struct device_node *lnk)
+{
+	enum graph_type type = __graph_get_type(lnk);
+
+	/* GRAPH_MULTI here means GRAPH_NORMAL */
+	if (type == GRAPH_MULTI)
+		type = GRAPH_NORMAL;
+
+#ifdef DEBUG
+	{
+		struct device *dev = simple_priv_to_dev(priv);
+		const char *str = "Normal";
+
+		switch (type) {
+		case GRAPH_DPCM:
+			if (asoc_graph_is_ports0(lnk))
+				str = "DPCM Front-End";
+			else
+				str = "DPCM Back-End";
+			break;
+		case GRAPH_C2C:
+			str = "Codec2Codec";
+			break;
+		default:
+			break;
+		}
+
+		dev_dbg(dev, "%pOF (%s)", lnk, str);
+	}
+#endif
+	return type;
+}
+
+static int graph_lnk_is_multi(struct device_node *lnk)
+{
+	return __graph_get_type(lnk) == GRAPH_MULTI;
+}
+
+static struct device_node *graph_get_next_multi_ep(struct device_node **port)
+{
+	struct device_node *ports = of_get_parent(*port);
+	struct device_node *ep = NULL;
+	struct device_node *rep = NULL;
+
+	/*
+	 * multi {
+	 *	ports {
+	 * =>	lnk:	port@0 { ... };
+	 *		port@1 { ep { ... = rep0 } };
+	 *		port@2 { ep { ... = rep1 } };
+	 *		...
+	 *	};
+	 * };
+	 *
+	 * xxx {
+	 *	port@0 { rep0 };
+	 *	port@1 { rep1 };
+	 * };
+	 */
+	do {
+		*port = of_get_next_child(ports, *port);
+		if (!*port)
+			break;
+	} while (!of_node_name_eq(*port, "port"));
+
+	if (*port) {
+		ep  = port_to_endpoint(*port);
+		rep = of_graph_get_remote_endpoint(ep);
+	}
+
+	of_node_put(ep);
+	of_node_put(ports);
+
+	return rep;
+}
+
+static const struct snd_soc_ops graph_ops = {
+	.startup	= asoc_simple_startup,
+	.shutdown	= asoc_simple_shutdown,
+	.hw_params	= asoc_simple_hw_params,
+};
+
+static void graph_parse_convert(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 asoc_simple_data *adata = &props->adata;
+
+	if (of_node_name_eq(ports, "ports"))
+		asoc_simple_parse_convert(ports, NULL, adata);
+	asoc_simple_parse_convert(port, NULL, adata);
+	asoc_simple_parse_convert(ep,   NULL, adata);
+
+	of_node_put(port);
+	of_node_put(ports);
+}
+
+static void graph_parse_mclk_fs(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);
+
+	if (of_node_name_eq(ports, "ports"))
+		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);
+}
+
+static int __graph_parse_node(struct asoc_simple_priv *priv,
+			      enum graph_type gtype,
+			      struct device_node *ep,
+			      struct link_info *li,
+			      int is_cpu, int idx)
+{
+	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 snd_soc_dai_link_component *dlc;
+	struct asoc_simple_dai *dai;
+	int ret, is_single_links = 0;
+
+	if (is_cpu) {
+		dlc = asoc_link_to_cpu(dai_link, idx);
+		dai = simple_props_to_dai_cpu(dai_props, idx);
+	} else {
+		dlc = asoc_link_to_codec(dai_link, idx);
+		dai = simple_props_to_dai_codec(dai_props, idx);
+	}
+
+	graph_parse_mclk_fs(ep, dai_props);
+
+	ret = asoc_graph_parse_dai(dev, ep, dlc, &is_single_links);
+	if (ret < 0)
+		return ret;
+
+	ret = asoc_simple_parse_tdm(ep, dai);
+	if (ret < 0)
+		return ret;
+
+	ret = asoc_simple_parse_tdm_width_map(dev, ep, dai);
+	if (ret < 0)
+		return ret;
+
+	ret = asoc_simple_parse_clk(dev, ep, dai, dlc);
+	if (ret < 0)
+		return ret;
+
+	/*
+	 * set DAI Name
+	 */
+	if (!dai_link->name) {
+		struct snd_soc_dai_link_component *cpus = dlc;
+		struct snd_soc_dai_link_component *codecs = asoc_link_to_codec(dai_link, idx);
+		char *cpu_multi   = "";
+		char *codec_multi = "";
+
+		if (dai_link->num_cpus > 1)
+			cpu_multi = "_multi";
+		if (dai_link->num_codecs > 1)
+			codec_multi = "_multi";
+
+		switch (gtype) {
+		case GRAPH_NORMAL:
+			/* run is_cpu only. see audio_graph2_link_normal() */
+			if (is_cpu)
+				asoc_simple_set_dailink_name(dev, dai_link, "%s%s-%s%s",
+							       cpus->dai_name,   cpu_multi,
+							     codecs->dai_name, codec_multi);
+			break;
+		case GRAPH_DPCM:
+			if (is_cpu)
+				asoc_simple_set_dailink_name(dev, dai_link, "fe.%pOFP.%s%s",
+						cpus->of_node, cpus->dai_name, cpu_multi);
+			else
+				asoc_simple_set_dailink_name(dev, dai_link, "be.%pOFP.%s%s",
+						codecs->of_node, codecs->dai_name, codec_multi);
+			break;
+		case GRAPH_C2C:
+			/* run is_cpu only. see audio_graph2_link_c2c() */
+			if (is_cpu)
+				asoc_simple_set_dailink_name(dev, dai_link, "c2c.%s%s-%s%s",
+							     cpus->dai_name,   cpu_multi,
+							     codecs->dai_name, codec_multi);
+			break;
+		default:
+			break;
+		}
+	}
+
+	/*
+	 * Check "prefix" from top node
+	 * if DPCM-BE case
+	 */
+	if (!is_cpu && gtype == GRAPH_DPCM) {
+		struct snd_soc_dai_link_component *codecs = asoc_link_to_codec(dai_link, idx);
+		struct snd_soc_codec_conf *cconf = simple_props_to_codec_conf(dai_props, idx);
+		struct device_node *rport  = of_get_parent(ep);
+		struct device_node *rports = of_get_parent(rport);
+
+		if (of_node_name_eq(rports, "ports"))
+			snd_soc_of_parse_node_prefix(rports, cconf, codecs->of_node, "prefix");
+		snd_soc_of_parse_node_prefix(rport,  cconf, codecs->of_node, "prefix");
+
+		of_node_put(rport);
+		of_node_put(rports);
+	}
+
+	if (is_cpu) {
+		struct snd_soc_dai_link_component *cpus = dlc;
+		struct snd_soc_dai_link_component *platforms = asoc_link_to_platform(dai_link, idx);
+
+		asoc_simple_canonicalize_cpu(cpus, is_single_links);
+		asoc_simple_canonicalize_platform(platforms, cpus);
+	}
+
+	return 0;
+}
+
+static int graph_parse_node(struct asoc_simple_priv *priv,
+			    enum graph_type gtype,
+			    struct device_node *port,
+			    struct link_info *li, int is_cpu)
+{
+	struct device_node *ep;
+	int ret = 0;
+
+	if (graph_lnk_is_multi(port)) {
+		int idx;
+
+		of_node_get(port);
+
+		for (idx = 0;; idx++) {
+			ep = graph_get_next_multi_ep(&port);
+			if (!ep)
+				break;
+
+			ret = __graph_parse_node(priv, gtype, ep,
+						 li, is_cpu, idx);
+			of_node_put(ep);
+			if (ret < 0)
+				break;
+		}
+	} else {
+		/* Single CPU / Codec */
+		ep = port_to_endpoint(port);
+		ret = __graph_parse_node(priv, gtype, ep, li, is_cpu, 0);
+		of_node_put(ep);
+	}
+
+	return ret;
+}
+
+static void graph_parse_daifmt(struct device_node *node,
+			       unsigned int *daifmt, unsigned int *bit_frame)
+{
+	unsigned int fmt;
+
+	/*
+	 * see also above "daifmt" explanation
+	 * and samples.
+	 */
+
+	/*
+	 *	ports {
+	 * (A)
+	 *		port {
+	 * (B)
+	 *			endpoint {
+	 * (C)
+	 *			};
+	 *		};
+	 *	};
+	 * };
+	 */
+
+	/*
+	 * clock_provider:
+	 *
+	 * It can be judged it is provider
+	 * if (A) or (B) or (C) has bitclock-master / frame-master flag.
+	 *
+	 * use "or"
+	 */
+	*bit_frame |= snd_soc_daifmt_parse_clock_provider_as_bitmap(node, NULL);
+
+#define update_daifmt(name)					\
+	if (!(*daifmt & SND_SOC_DAIFMT_##name##_MASK) &&	\
+		 (fmt & SND_SOC_DAIFMT_##name##_MASK))		\
+		*daifmt |= fmt & SND_SOC_DAIFMT_##name##_MASK
+
+	/*
+	 * format
+	 *
+	 * This function is called by (C) -> (B) -> (A) order.
+	 * Set if applicable part was not yet set.
+	 */
+	fmt = snd_soc_daifmt_parse_format(node, NULL);
+	update_daifmt(FORMAT);
+	update_daifmt(CLOCK);
+	update_daifmt(INV);
+}
+
+static void graph_link_init(struct asoc_simple_priv *priv,
+			    struct device_node *port,
+			    struct link_info *li,
+			    int is_cpu_node)
+{
+	struct snd_soc_dai_link *dai_link = simple_priv_to_link(priv, li->link);
+	struct device_node *ep;
+	struct device_node *ports;
+	unsigned int daifmt = 0, daiclk = 0;
+	unsigned int bit_frame = 0;
+
+	if (graph_lnk_is_multi(port)) {
+		of_node_get(port);
+		ep = graph_get_next_multi_ep(&port);
+		port = of_get_parent(ep);
+	} else {
+		ep = port_to_endpoint(port);
+	}
+
+	ports = of_get_parent(port);
+
+	/*
+	 *	ports {
+	 * (A)
+	 *		port {
+	 * (B)
+	 *			endpoint {
+	 * (C)
+	 *			};
+	 *		};
+	 *	};
+	 * };
+	 */
+	graph_parse_daifmt(ep,    &daifmt, &bit_frame);		/* (C) */
+	graph_parse_daifmt(port,  &daifmt, &bit_frame);		/* (B) */
+	if (of_node_name_eq(ports, "ports"))
+		graph_parse_daifmt(ports, &daifmt, &bit_frame);	/* (A) */
+
+	/*
+	 * convert bit_frame
+	 * We need to flip clock_provider if it was CPU node,
+	 * because it is Codec base.
+	 */
+	daiclk = snd_soc_daifmt_clock_provider_from_bitmap(bit_frame);
+	if (is_cpu_node)
+		daiclk = snd_soc_daifmt_clock_provider_flipped(daiclk);
+
+	dai_link->dai_fmt	= daifmt | daiclk;
+	dai_link->init		= asoc_simple_dai_init;
+	dai_link->ops		= &graph_ops;
+	if (priv->ops)
+		dai_link->ops	= priv->ops;
+}
+
+int audio_graph2_link_normal(struct asoc_simple_priv *priv,
+			     struct device_node *lnk,
+			     struct link_info *li)
+{
+	struct device_node *cpu_port = lnk;
+	struct device_node *cpu_ep = port_to_endpoint(cpu_port);
+	struct device_node *codec_port = of_graph_get_remote_port(cpu_ep);
+	int ret;
+
+	/*
+	 * call Codec first.
+	 * see
+	 *	__graph_parse_node() :: DAI Naming
+	 */
+	ret = graph_parse_node(priv, GRAPH_NORMAL, codec_port, li, 0);
+	if (ret < 0)
+		goto err;
+
+	/*
+	 * call CPU, and set DAI Name
+	 */
+	ret = graph_parse_node(priv, GRAPH_NORMAL, cpu_port, li, 1);
+	if (ret < 0)
+		goto err;
+
+	graph_link_init(priv, cpu_port, li, 1);
+err:
+	of_node_put(codec_port);
+	of_node_put(cpu_ep);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(audio_graph2_link_normal);
+
+int audio_graph2_link_dpcm(struct asoc_simple_priv *priv,
+			   struct device_node *lnk,
+			   struct link_info *li)
+{
+	struct device_node *ep = port_to_endpoint(lnk);
+	struct device_node *rep = of_graph_get_remote_endpoint(ep);
+	struct device_node *rport = of_graph_get_remote_port(ep);
+	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);
+	int is_cpu = asoc_graph_is_ports0(lnk);
+	int ret;
+
+	if (is_cpu) {
+		/*
+		 * dpcm {
+		 *	// Front-End
+		 *	ports@0 {
+		 * =>		lnk: port@0 { ep: { ... = rep }; };
+		 *		 ...
+		 *	};
+		 *	// Back-End
+		 *	ports@0 {
+		 *		 ...
+		 *	};
+		 * };
+		 *
+		 * CPU {
+		 *	rports: ports {
+		 *		rport: port@0 { rep: { ... = ep } };
+		 *	}
+		 * }
+		 */
+		/*
+		 * setup CPU here, Codec is already set as dummy.
+		 * see
+		 *	asoc_simple_init_priv()
+		 */
+		dai_link->dynamic		= 1;
+		dai_link->dpcm_merged_format	= 1;
+
+		ret = graph_parse_node(priv, GRAPH_DPCM, rport, li, 1);
+		if (ret)
+			goto err;
+	} else {
+		/*
+		 * dpcm {
+		 *	// Front-End
+		 *	ports@0 {
+		 *		 ...
+		 *	};
+		 *	// Back-End
+		 *	ports@0 {
+		 * =>		lnk: port@0 { ep: { ... = rep; }; };
+		 *		 ...
+		 *	};
+		 * };
+		 *
+		 * Codec {
+		 *	rports: ports {
+		 *		rport: port@0 { rep: { ... = ep; }; };
+		 *	}
+		 * }
+		 */
+		/*
+		 * setup Codec here, CPU is already set as dummy.
+		 * see
+		 *	asoc_simple_init_priv()
+		 */
+
+		/* BE settings */
+		dai_link->no_pcm		= 1;
+		dai_link->be_hw_params_fixup	= asoc_simple_be_hw_params_fixup;
+
+		ret = graph_parse_node(priv, GRAPH_DPCM, rport, li, 0);
+		if (ret < 0)
+			goto err;
+	}
+
+	graph_parse_convert(ep,  dai_props); /* at node of <dpcm> */
+	graph_parse_convert(rep, dai_props); /* at node of <CPU/Codec> */
+
+	snd_soc_dai_link_set_capabilities(dai_link);
+
+	graph_link_init(priv, rport, li, is_cpu);
+err:
+	of_node_put(ep);
+	of_node_put(rep);
+	of_node_put(rport);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(audio_graph2_link_dpcm);
+
+int audio_graph2_link_c2c(struct asoc_simple_priv *priv,
+			  struct device_node *lnk,
+			  struct link_info *li)
+{
+	struct snd_soc_dai_link *dai_link = simple_priv_to_link(priv, li->link);
+	struct device_node *port0, *port1, *ports;
+	struct device_node *codec0_port, *codec1_port;
+	struct device_node *ep0, *ep1;
+	u32 val = 0;
+	int ret = -EINVAL;
+
+	/*
+	 * codec2codec {
+	 *	ports {
+	 *		rate = <48000>;
+	 * =>	lnk:	port@0 { c2c0_ep: { ... = codec0_ep; }; };
+	 *		port@1 { c2c1_ep: { ... = codec1_ep; }; };
+	 *	};
+	 * };
+	 *
+	 * Codec {
+	 *	ports {
+	 *		port@0 { codec0_ep: ... }; };
+	 *		port@1 { codec1_ep: ... }; };
+	 *	};
+	 * };
+	 */
+	of_node_get(lnk);
+	port0 = lnk;
+	ports = of_get_parent(port0);
+	port1 = of_get_next_child(ports, lnk);
+
+	/*
+	 * Card2 can use original Codec2Codec settings if DT has.
+	 * It will use default settings if no settings on DT.
+	 * see
+	 *	asoc_simple_init_for_codec2codec()
+	 *
+	 * Add more settings here if needed
+	 */
+	of_property_read_u32(ports, "rate", &val);
+	if (val) {
+		struct device *dev = simple_priv_to_dev(priv);
+		struct snd_soc_pcm_stream *c2c_conf;
+
+		c2c_conf = devm_kzalloc(dev, sizeof(*c2c_conf), GFP_KERNEL);
+		if (!c2c_conf)
+			goto err1;
+
+		c2c_conf->formats	= SNDRV_PCM_FMTBIT_S32_LE; /* update ME */
+		c2c_conf->rates		= SNDRV_PCM_RATE_8000_384000;
+		c2c_conf->rate_min	=
+		c2c_conf->rate_max	= val;
+		c2c_conf->channels_min	=
+		c2c_conf->channels_max	= 2; /* update ME */
+
+		dai_link->c2c_params		= c2c_conf;
+		dai_link->num_c2c_params	= 1;
+	}
+
+	ep0 = port_to_endpoint(port0);
+	ep1 = port_to_endpoint(port1);
+
+	codec0_port = of_graph_get_remote_port(ep0);
+	codec1_port = of_graph_get_remote_port(ep1);
+
+	/*
+	 * call Codec first.
+	 * see
+	 *	__graph_parse_node() :: DAI Naming
+	 */
+	ret = graph_parse_node(priv, GRAPH_C2C, codec1_port, li, 0);
+	if (ret < 0)
+		goto err2;
+
+	/*
+	 * call CPU, and set DAI Name
+	 */
+	ret = graph_parse_node(priv, GRAPH_C2C, codec0_port, li, 1);
+	if (ret < 0)
+		goto err2;
+
+	graph_link_init(priv, codec0_port, li, 1);
+err2:
+	of_node_put(ep0);
+	of_node_put(ep1);
+	of_node_put(codec0_port);
+	of_node_put(codec1_port);
+err1:
+	of_node_put(ports);
+	of_node_put(port0);
+	of_node_put(port1);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(audio_graph2_link_c2c);
+
+static int graph_link(struct asoc_simple_priv *priv,
+		      struct graph2_custom_hooks *hooks,
+		      enum graph_type gtype,
+		      struct device_node *lnk,
+		      struct link_info *li)
+{
+	struct device *dev = simple_priv_to_dev(priv);
+	GRAPH2_CUSTOM func = NULL;
+	int ret = -EINVAL;
+
+	switch (gtype) {
+	case GRAPH_NORMAL:
+		if (hooks && hooks->custom_normal)
+			func = hooks->custom_normal;
+		else
+			func = audio_graph2_link_normal;
+		break;
+	case GRAPH_DPCM:
+		if (hooks && hooks->custom_dpcm)
+			func = hooks->custom_dpcm;
+		else
+			func = audio_graph2_link_dpcm;
+		break;
+	case GRAPH_C2C:
+		if (hooks && hooks->custom_c2c)
+			func = hooks->custom_c2c;
+		else
+			func = audio_graph2_link_c2c;
+		break;
+	default:
+		break;
+	}
+
+	if (!func) {
+		dev_err(dev, "non supported gtype (%d)\n", gtype);
+		goto err;
+	}
+
+	ret = func(priv, lnk, li);
+	if (ret < 0)
+		goto err;
+
+	li->link++;
+err:
+	return ret;
+}
+
+static int graph_counter(struct device_node *lnk)
+{
+	/*
+	 * Multi CPU / Codec
+	 *
+	 * multi {
+	 *	ports {
+	 * =>		lnk:	port@0 { ... };
+	 *			port@1 { ... };
+	 *			port@2 { ... };
+	 *			...
+	 *	};
+	 * };
+	 *
+	 * ignore first lnk part
+	 */
+	if (graph_lnk_is_multi(lnk))
+		return of_graph_get_endpoint_count(of_get_parent(lnk)) - 1;
+	/*
+	 * Single CPU / Codec
+	 */
+	else
+		return 1;
+}
+
+static int graph_count_normal(struct asoc_simple_priv *priv,
+			      struct device_node *lnk,
+			      struct link_info *li)
+{
+	struct device_node *cpu_port = lnk;
+	struct device_node *cpu_ep = port_to_endpoint(cpu_port);
+	struct device_node *codec_port = of_graph_get_remote_port(cpu_ep);
+
+	/*
+	 *	CPU {
+	 * =>		lnk: port { endpoint { .. }; };
+	 *	};
+	 */
+	/*
+	 * DON'T REMOVE platforms
+	 * see
+	 *	simple-card.c :: simple_count_noml()
+	 */
+	li->num[li->link].cpus		=
+	li->num[li->link].platforms	= graph_counter(cpu_port);
+
+	li->num[li->link].codecs	= graph_counter(codec_port);
+
+	of_node_put(cpu_ep);
+	of_node_put(codec_port);
+
+	return 0;
+}
+
+static int graph_count_dpcm(struct asoc_simple_priv *priv,
+			    struct device_node *lnk,
+			    struct link_info *li)
+{
+	struct device_node *ep = port_to_endpoint(lnk);
+	struct device_node *rport = of_graph_get_remote_port(ep);
+
+	/*
+	 * dpcm {
+	 *	// Front-End
+	 *	ports@0 {
+	 * =>		lnk: port@0 { endpoint { ... }; };
+	 *		 ...
+	 *	};
+	 *	// Back-End
+	 *	ports@1 {
+	 * =>		lnk: port@0 { endpoint { ... }; };
+	 *		 ...
+	 *	};
+	 * };
+	 */
+
+	if (asoc_graph_is_ports0(lnk)) {
+		/*
+		 * DON'T REMOVE platforms
+		 * see
+		 *	simple-card.c :: simple_count_noml()
+		 */
+		li->num[li->link].cpus		= graph_counter(rport); /* FE */
+		li->num[li->link].platforms	= graph_counter(rport);
+	} else {
+		li->num[li->link].codecs	= graph_counter(rport); /* BE */
+	}
+
+	of_node_put(ep);
+	of_node_put(rport);
+
+	return 0;
+}
+
+static int graph_count_c2c(struct asoc_simple_priv *priv,
+			   struct device_node *lnk,
+			   struct link_info *li)
+{
+	struct device_node *ports = of_get_parent(lnk);
+	struct device_node *port0 = lnk;
+	struct device_node *port1 = of_get_next_child(ports, lnk);
+	struct device_node *ep0 = port_to_endpoint(port0);
+	struct device_node *ep1 = port_to_endpoint(port1);
+	struct device_node *codec0 = of_graph_get_remote_port(ep0);
+	struct device_node *codec1 = of_graph_get_remote_port(ep1);
+
+	of_node_get(lnk);
+
+	/*
+	 * codec2codec {
+	 *	ports {
+	 * =>	lnk:	port@0 { endpoint { ... }; };
+	 *		port@1 { endpoint { ... }; };
+	 *	};
+	 * };
+	 */
+	/*
+	 * DON'T REMOVE platforms
+	 * see
+	 *	simple-card.c :: simple_count_noml()
+	 */
+	li->num[li->link].cpus		=
+	li->num[li->link].platforms	= graph_counter(codec0);
+
+	li->num[li->link].codecs	= graph_counter(codec1);
+
+	of_node_put(ports);
+	of_node_put(port1);
+	of_node_put(ep0);
+	of_node_put(ep1);
+	of_node_put(codec0);
+	of_node_put(codec1);
+
+	return 0;
+}
+
+static int graph_count(struct asoc_simple_priv *priv,
+		       struct graph2_custom_hooks *hooks,
+		       enum graph_type gtype,
+		       struct device_node *lnk,
+		       struct link_info *li)
+{
+	struct device *dev = simple_priv_to_dev(priv);
+	GRAPH2_CUSTOM func = NULL;
+	int ret = -EINVAL;
+
+	if (li->link >= SNDRV_MAX_LINKS) {
+		dev_err(dev, "too many links\n");
+		return ret;
+	}
+
+	switch (gtype) {
+	case GRAPH_NORMAL:
+		func = graph_count_normal;
+		break;
+	case GRAPH_DPCM:
+		func = graph_count_dpcm;
+		break;
+	case GRAPH_C2C:
+		func = graph_count_c2c;
+		break;
+	default:
+		break;
+	}
+
+	if (!func) {
+		dev_err(dev, "non supported gtype (%d)\n", gtype);
+		goto err;
+	}
+
+	ret = func(priv, lnk, li);
+	if (ret < 0)
+		goto err;
+
+	li->link++;
+err:
+	return ret;
+}
+
+static int graph_for_each_link(struct asoc_simple_priv *priv,
+			       struct graph2_custom_hooks *hooks,
+			       struct link_info *li,
+			       int (*func)(struct asoc_simple_priv *priv,
+					   struct graph2_custom_hooks *hooks,
+					   enum graph_type gtype,
+					   struct device_node *lnk,
+					   struct link_info *li))
+{
+	struct of_phandle_iterator it;
+	struct device *dev = simple_priv_to_dev(priv);
+	struct device_node *node = dev->of_node;
+	struct device_node *lnk;
+	enum graph_type gtype;
+	int rc, ret;
+
+	/* loop for all listed CPU port */
+	of_for_each_phandle(&it, rc, node, "links", NULL, 0) {
+		lnk = it.node;
+
+		gtype = graph_get_type(priv, lnk);
+
+		ret = func(priv, hooks, gtype, lnk, li);
+		if (ret < 0)
+			return ret;
+	}
+
+	return 0;
+}
+
+int audio_graph2_parse_of(struct asoc_simple_priv *priv, struct device *dev,
+			  struct graph2_custom_hooks *hooks)
+{
+	struct snd_soc_card *card = simple_priv_to_card(priv);
+	struct link_info *li;
+	int ret;
+
+	li = devm_kzalloc(dev, sizeof(*li), GFP_KERNEL);
+	if (!li)
+		return -ENOMEM;
+
+	card->probe	= asoc_graph_card_probe;
+	card->owner	= THIS_MODULE;
+	card->dev	= dev;
+
+	if ((hooks) && (hooks)->hook_pre) {
+		ret = (hooks)->hook_pre(priv);
+		if (ret < 0)
+			goto err;
+	}
+
+	ret = graph_for_each_link(priv, hooks, li, graph_count);
+	if (!li->link)
+		ret = -EINVAL;
+	if (ret < 0)
+		goto err;
+
+	ret = asoc_simple_init_priv(priv, li);
+	if (ret < 0)
+		goto err;
+
+	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);
+		goto err;
+	}
+
+	ret = asoc_simple_parse_widgets(card, NULL);
+	if (ret < 0)
+		goto err;
+
+	ret = asoc_simple_parse_routing(card, NULL);
+	if (ret < 0)
+		goto err;
+
+	memset(li, 0, sizeof(*li));
+	ret = graph_for_each_link(priv, hooks, li, graph_link);
+	if (ret < 0)
+		goto err;
+
+	ret = asoc_simple_parse_card_name(card, NULL);
+	if (ret < 0)
+		goto err;
+
+	snd_soc_card_set_drvdata(card, priv);
+
+	if ((hooks) && (hooks)->hook_post) {
+		ret = (hooks)->hook_post(priv);
+		if (ret < 0)
+			goto err;
+	}
+
+	asoc_simple_debug_info(priv);
+
+	ret = devm_snd_soc_register_card(dev, card);
+err:
+	devm_kfree(dev, li);
+
+	if (ret < 0)
+		dev_err_probe(dev, ret, "parse error\n");
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(audio_graph2_parse_of);
+
+static int graph_probe(struct platform_device *pdev)
+{
+	struct asoc_simple_priv *priv;
+	struct device *dev = &pdev->dev;
+
+	/* Allocate the private data and the DAI link array */
+	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	return audio_graph2_parse_of(priv, dev, NULL);
+}
+
+static const struct of_device_id graph_of_match[] = {
+	{ .compatible = "audio-graph-card2", },
+	{},
+};
+MODULE_DEVICE_TABLE(of, graph_of_match);
+
+static struct platform_driver graph_card = {
+	.driver = {
+		.name = "asoc-audio-graph-card2",
+		.pm = &snd_soc_pm_ops,
+		.of_match_table = graph_of_match,
+	},
+	.probe	= graph_probe,
+	.remove	= asoc_simple_remove,
+};
+module_platform_driver(graph_card);
+
+MODULE_ALIAS("platform:asoc-audio-graph-card2");
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("ASoC Audio Graph Card2");
+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..2588ec735
--- /dev/null
+++ b/sound/soc/generic/simple-card-utils.c
@@ -0,0 +1,1138 @@
+// 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_graph.h>
+#include <sound/jack.h>
+#include <sound/pcm_params.h>
+#include <sound/simple_card_utils.h>
+
+static void asoc_simple_fixup_sample_fmt(struct asoc_simple_data *data,
+					 struct snd_pcm_hw_params *params)
+{
+	int i;
+	struct snd_mask *mask = hw_param_mask(params,
+					      SNDRV_PCM_HW_PARAM_FORMAT);
+	struct {
+		char *fmt;
+		u32 val;
+	} of_sample_fmt_table[] = {
+		{ "s8",		SNDRV_PCM_FORMAT_S8},
+		{ "s16_le",	SNDRV_PCM_FORMAT_S16_LE},
+		{ "s24_le",	SNDRV_PCM_FORMAT_S24_LE},
+		{ "s24_3le",	SNDRV_PCM_FORMAT_S24_3LE},
+		{ "s32_le",	SNDRV_PCM_FORMAT_S32_LE},
+	};
+
+	for (i = 0; i < ARRAY_SIZE(of_sample_fmt_table); i++) {
+		if (!strcmp(data->convert_sample_format,
+			    of_sample_fmt_table[i].fmt)) {
+			snd_mask_none(mask);
+			snd_mask_set(mask, of_sample_fmt_table[i].val);
+			break;
+		}
+	}
+}
+
+void asoc_simple_parse_convert(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);
+
+	/* convert sample format */
+	snprintf(prop, sizeof(prop), "%s%s", prefix, "convert-sample-format");
+	of_property_read_string(np, prop, &data->convert_sample_format);
+}
+EXPORT_SYMBOL_GPL(asoc_simple_parse_convert);
+
+/**
+ * asoc_simple_is_convert_required() - Query if HW param conversion was requested
+ * @data: Link data.
+ *
+ * Returns true if any HW param conversion was requested for this DAI link with
+ * any "convert-xxx" properties.
+ */
+bool asoc_simple_is_convert_required(const struct asoc_simple_data *data)
+{
+	return data->convert_rate ||
+	       data->convert_channels ||
+	       data->convert_sample_format;
+}
+EXPORT_SYMBOL_GPL(asoc_simple_is_convert_required);
+
+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_daifmt_parse_format(node, prefix);
+
+	snd_soc_daifmt_parse_clock_provider_as_phandle(node, prefix, &bitclkmaster, &framemaster);
+	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_daifmt_parse_clock_provider_as_flag(codec, NULL);
+	} else {
+		daifmt |= snd_soc_daifmt_clock_provider_from_bitmap(
+				((codec == bitclkmaster) << 4) | (codec == framemaster));
+	}
+
+	of_node_put(bitclkmaster);
+	of_node_put(framemaster);
+
+	*retfmt = daifmt;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(asoc_simple_parse_daifmt);
+
+int asoc_simple_parse_tdm_width_map(struct device *dev, struct device_node *np,
+				    struct asoc_simple_dai *dai)
+{
+	u32 *array_values, *p;
+	int n, i, ret;
+
+	if (!of_property_read_bool(np, "dai-tdm-slot-width-map"))
+		return 0;
+
+	n = of_property_count_elems_of_size(np, "dai-tdm-slot-width-map", sizeof(u32));
+	if (n % 3) {
+		dev_err(dev, "Invalid number of cells for dai-tdm-slot-width-map\n");
+		return -EINVAL;
+	}
+
+	dai->tdm_width_map = devm_kcalloc(dev, n, sizeof(*dai->tdm_width_map), GFP_KERNEL);
+	if (!dai->tdm_width_map)
+		return -ENOMEM;
+
+	array_values = kcalloc(n, sizeof(*array_values), GFP_KERNEL);
+	if (!array_values)
+		return -ENOMEM;
+
+	ret = of_property_read_u32_array(np, "dai-tdm-slot-width-map", array_values, n);
+	if (ret < 0) {
+		dev_err(dev, "Could not read dai-tdm-slot-width-map: %d\n", ret);
+		goto out;
+	}
+
+	p = array_values;
+	for (i = 0; i < n / 3; ++i) {
+		dai->tdm_width_map[i].sample_bits = *p++;
+		dai->tdm_width_map[i].slot_width = *p++;
+		dai->tdm_width_map[i].slot_count = *p++;
+	}
+
+	dai->n_tdm_widths = i;
+	ret = 0;
+out:
+	kfree(array_values);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(asoc_simple_parse_tdm_width_map);
+
+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);
+	simple_dai->clk_fixed = of_property_read_bool(
+		node, "system-clock-fixed");
+	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;
+		simple_dai->clk_fixed = true;
+	} 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);
+
+static int asoc_simple_check_fixed_sysclk(struct device *dev,
+					  struct asoc_simple_dai *dai,
+					  unsigned int *fixed_sysclk)
+{
+	if (dai->clk_fixed) {
+		if (*fixed_sysclk && *fixed_sysclk != dai->sysclk) {
+			dev_err(dev, "inconsistent fixed sysclk rates (%u vs %u)\n",
+				*fixed_sysclk, dai->sysclk);
+			return -EINVAL;
+		}
+		*fixed_sysclk = dai->sysclk;
+	}
+
+	return 0;
+}
+
+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 *props = simple_priv_to_props(priv, rtd->num);
+	struct asoc_simple_dai *dai;
+	unsigned int fixed_sysclk = 0;
+	int i1, i2, i;
+	int ret;
+
+	for_each_prop_dai_cpu(props, i1, dai) {
+		ret = asoc_simple_clk_enable(dai);
+		if (ret)
+			goto cpu_err;
+		ret = asoc_simple_check_fixed_sysclk(rtd->dev, dai, &fixed_sysclk);
+		if (ret)
+			goto cpu_err;
+	}
+
+	for_each_prop_dai_codec(props, i2, dai) {
+		ret = asoc_simple_clk_enable(dai);
+		if (ret)
+			goto codec_err;
+		ret = asoc_simple_check_fixed_sysclk(rtd->dev, dai, &fixed_sysclk);
+		if (ret)
+			goto codec_err;
+	}
+
+	if (fixed_sysclk && props->mclk_fs) {
+		unsigned int fixed_rate = fixed_sysclk / props->mclk_fs;
+
+		if (fixed_sysclk % props->mclk_fs) {
+			dev_err(rtd->dev, "fixed sysclk %u not divisible by mclk_fs %u\n",
+				fixed_sysclk, props->mclk_fs);
+			ret = -EINVAL;
+			goto codec_err;
+		}
+		ret = snd_pcm_hw_constraint_minmax(substream->runtime, SNDRV_PCM_HW_PARAM_RATE,
+			fixed_rate, fixed_rate);
+		if (ret < 0)
+			goto codec_err;
+	}
+
+	return 0;
+
+codec_err:
+	for_each_prop_dai_codec(props, i, dai) {
+		if (i >= i2)
+			break;
+		asoc_simple_clk_disable(dai);
+	}
+cpu_err:
+	for_each_prop_dai_cpu(props, i, dai) {
+		if (i >= i1)
+			break;
+		asoc_simple_clk_disable(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 asoc_simple_priv *priv = snd_soc_card_get_drvdata(rtd->card);
+	struct simple_dai_props *props = simple_priv_to_props(priv, rtd->num);
+	struct asoc_simple_dai *dai;
+	int i;
+
+	for_each_prop_dai_cpu(props, i, dai) {
+		struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, i);
+
+		if (props->mclk_fs && !dai->clk_fixed && !snd_soc_dai_active(cpu_dai))
+			snd_soc_dai_set_sysclk(cpu_dai,
+					       0, 0, SND_SOC_CLOCK_OUT);
+
+		asoc_simple_clk_disable(dai);
+	}
+	for_each_prop_dai_codec(props, i, dai) {
+		struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, i);
+
+		if (props->mclk_fs && !dai->clk_fixed && !snd_soc_dai_active(codec_dai))
+			snd_soc_dai_set_sysclk(codec_dai,
+					       0, 0, SND_SOC_CLOCK_IN);
+
+		asoc_simple_clk_disable(dai);
+	}
+}
+EXPORT_SYMBOL_GPL(asoc_simple_shutdown);
+
+static int asoc_simple_set_clk_rate(struct device *dev,
+				    struct asoc_simple_dai *simple_dai,
+				    unsigned long rate)
+{
+	if (!simple_dai)
+		return 0;
+
+	if (simple_dai->clk_fixed && rate != simple_dai->sysclk) {
+		dev_err(dev, "dai %s invalid clock rate %lu\n", simple_dai->name, rate);
+		return -EINVAL;
+	}
+
+	if (!simple_dai->clk)
+		return 0;
+
+	if (clk_get_rate(simple_dai->clk) == rate)
+		return 0;
+
+	return clk_set_rate(simple_dai->clk, rate);
+}
+
+static int asoc_simple_set_tdm(struct snd_soc_dai *dai,
+				struct asoc_simple_dai *simple_dai,
+				struct snd_pcm_hw_params *params)
+{
+	int sample_bits = params_width(params);
+	int slot_width, slot_count;
+	int i, ret;
+
+	if (!simple_dai || !simple_dai->tdm_width_map)
+		return 0;
+
+	slot_width = simple_dai->slot_width;
+	slot_count = simple_dai->slots;
+
+	if (slot_width == 0)
+		slot_width = sample_bits;
+
+	for (i = 0; i < simple_dai->n_tdm_widths; ++i) {
+		if (simple_dai->tdm_width_map[i].sample_bits == sample_bits) {
+			slot_width = simple_dai->tdm_width_map[i].slot_width;
+			slot_count = simple_dai->tdm_width_map[i].slot_count;
+			break;
+		}
+	}
+
+	ret = snd_soc_dai_set_tdm_slot(dai,
+				       simple_dai->tx_slot_mask,
+				       simple_dai->rx_slot_mask,
+				       slot_count,
+				       slot_width);
+	if (ret && ret != -ENOTSUPP) {
+		dev_err(dai->dev, "simple-card: set_tdm_slot error: %d\n", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+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 asoc_simple_dai *pdai;
+	struct snd_soc_dai *sdai;
+	struct asoc_simple_priv *priv = snd_soc_card_get_drvdata(rtd->card);
+	struct simple_dai_props *props = simple_priv_to_props(priv, rtd->num);
+	unsigned int mclk, mclk_fs = 0;
+	int i, ret;
+
+	if (props->mclk_fs)
+		mclk_fs = props->mclk_fs;
+
+	if (mclk_fs) {
+		struct snd_soc_component *component;
+		mclk = params_rate(params) * mclk_fs;
+
+		for_each_prop_dai_codec(props, i, pdai) {
+			ret = asoc_simple_set_clk_rate(rtd->dev, pdai, mclk);
+			if (ret < 0)
+				return ret;
+		}
+
+		for_each_prop_dai_cpu(props, i, pdai) {
+			ret = asoc_simple_set_clk_rate(rtd->dev, pdai, mclk);
+			if (ret < 0)
+				return ret;
+		}
+
+		/* Ensure sysclk is set on all components in case any
+		 * (such as platform components) are missed by calls to
+		 * snd_soc_dai_set_sysclk.
+		 */
+		for_each_rtd_components(rtd, i, component) {
+			ret = snd_soc_component_set_sysclk(component, 0, 0,
+							   mclk, SND_SOC_CLOCK_IN);
+			if (ret && ret != -ENOTSUPP)
+				return ret;
+		}
+
+		for_each_rtd_codec_dais(rtd, i, sdai) {
+			ret = snd_soc_dai_set_sysclk(sdai, 0, mclk, SND_SOC_CLOCK_IN);
+			if (ret && ret != -ENOTSUPP)
+				return ret;
+		}
+
+		for_each_rtd_cpu_dais(rtd, i, sdai) {
+			ret = snd_soc_dai_set_sysclk(sdai, 0, mclk, SND_SOC_CLOCK_OUT);
+			if (ret && ret != -ENOTSUPP)
+				return ret;
+		}
+	}
+
+	for_each_prop_dai_codec(props, i, pdai) {
+		sdai = asoc_rtd_to_codec(rtd, i);
+		ret = asoc_simple_set_tdm(sdai, pdai, params);
+		if (ret < 0)
+			return ret;
+	}
+
+	for_each_prop_dai_cpu(props, i, pdai) {
+		sdai = asoc_rtd_to_cpu(rtd, i);
+		ret = asoc_simple_set_tdm(sdai, pdai, params);
+		if (ret < 0)
+			return ret;
+	}
+
+	return 0;
+}
+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);
+	struct asoc_simple_data *data = &dai_props->adata;
+	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;
+
+	if (data->convert_sample_format)
+		asoc_simple_fixup_sample_fmt(data, 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 inline int asoc_simple_component_is_codec(struct snd_soc_component *component)
+{
+	return component->driver->endianness;
+}
+
+static int asoc_simple_init_for_codec2codec(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 *c2c_params;
+	struct snd_pcm_hardware hw;
+	int i, ret, stream;
+
+	/* Do nothing if it already has Codec2Codec settings */
+	if (dai_link->c2c_params)
+		return 0;
+
+	/* Do nothing if it was DPCM :: BE */
+	if (dai_link->no_pcm)
+		return 0;
+
+	/* Only Codecs */
+	for_each_rtd_components(rtd, i, component) {
+		if (!asoc_simple_component_is_codec(component))
+			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;
+	}
+
+	c2c_params = devm_kzalloc(rtd->dev, sizeof(*c2c_params), GFP_KERNEL);
+	if (!c2c_params)
+		return -ENOMEM;
+
+	c2c_params->formats		= hw.formats;
+	c2c_params->rates		= hw.rates;
+	c2c_params->rate_min		= hw.rate_min;
+	c2c_params->rate_max		= hw.rate_max;
+	c2c_params->channels_min	= hw.channels_min;
+	c2c_params->channels_max	= hw.channels_max;
+
+	dai_link->c2c_params		= c2c_params;
+	dai_link->num_c2c_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 *props = simple_priv_to_props(priv, rtd->num);
+	struct asoc_simple_dai *dai;
+	int i, ret;
+
+	for_each_prop_dai_codec(props, i, dai) {
+		ret = asoc_simple_init_dai(asoc_rtd_to_codec(rtd, i), dai);
+		if (ret < 0)
+			return ret;
+	}
+	for_each_prop_dai_cpu(props, i, dai) {
+		ret = asoc_simple_init_dai(asoc_rtd_to_cpu(rtd, i), dai);
+		if (ret < 0)
+			return ret;
+	}
+
+	ret = asoc_simple_init_for_codec2codec(rtd, 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_component *platforms,
+				       struct snd_soc_dai_link_component *cpus)
+{
+	/*
+	 * Assumes Platform == CPU
+	 *
+	 * Some CPU might be using soc-generic-dmaengine-pcm. This means CPU and Platform
+	 * are different Component, but are sharing same component->dev.
+	 *
+	 * Let's assume Platform is same as CPU if it doesn't identify Platform on DT.
+	 * see
+	 *	simple-card.c :: simple_count_noml()
+	 */
+	if (!platforms->of_node)
+		snd_soc_dlc_use_cpu_as_platform(platforms, cpus);
+}
+EXPORT_SYMBOL_GPL(asoc_simple_canonicalize_platform);
+
+void asoc_simple_canonicalize_cpu(struct snd_soc_dai_link_component *cpus,
+				  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)
+		cpus->dai_name = NULL;
+}
+EXPORT_SYMBOL_GPL(asoc_simple_canonicalize_cpu);
+
+void asoc_simple_clean_reference(struct snd_soc_card *card)
+{
+	struct snd_soc_dai_link *dai_link;
+	struct snd_soc_dai_link_component *cpu;
+	struct snd_soc_dai_link_component *codec;
+	int i, j;
+
+	for_each_card_prelinks(card, i, dai_link) {
+		for_each_link_cpus(dai_link, j, cpu)
+			of_node_put(cpu->of_node);
+		for_each_link_codecs(dai_link, j, codec)
+			of_node_put(codec->of_node);
+	}
+}
+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)
+{
+	char prop[128];
+
+	if (!prefix)
+		prefix = "";
+
+	snprintf(prop, sizeof(prop), "%s%s", prefix, "pin-switches");
+
+	return snd_soc_of_parse_pin_switches(card, prop);
+}
+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;
+	struct gpio_desc *desc;
+	char prop[128];
+	char *pin_name;
+	char *gpio_name;
+	int mask;
+	int error;
+
+	if (!prefix)
+		prefix = "";
+
+	sjack->gpio.gpio = -ENOENT;
+
+	if (is_hp) {
+		snprintf(prop, sizeof(prop), "%shp-det", prefix);
+		pin_name	= pin ? pin : "Headphones";
+		gpio_name	= "Headphone detection";
+		mask		= SND_JACK_HEADPHONE;
+	} else {
+		snprintf(prop, sizeof(prop), "%smic-det", prefix);
+		pin_name	= pin ? pin : "Mic Jack";
+		gpio_name	= "Mic detection";
+		mask		= SND_JACK_MICROPHONE;
+	}
+
+	desc = gpiod_get_optional(dev, prop, GPIOD_IN);
+	error = PTR_ERR_OR_ZERO(desc);
+	if (error)
+		return error;
+
+	if (desc) {
+		error = gpiod_set_consumer_name(desc, gpio_name);
+		if (error)
+			return error;
+
+		sjack->pin.pin		= pin_name;
+		sjack->pin.mask		= mask;
+
+		sjack->gpio.name	= gpio_name;
+		sjack->gpio.report	= mask;
+		sjack->gpio.desc	= desc;
+		sjack->gpio.debounce_time = 150;
+
+		snd_soc_card_jack_new_pins(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_aux_jacks(struct asoc_simple_priv *priv, char *prefix)
+{
+	struct snd_soc_card *card = simple_priv_to_card(priv);
+	struct snd_soc_component *component;
+	int found_jack_index = 0;
+	int type = 0;
+	int num = 0;
+	int ret;
+
+	if (priv->aux_jacks)
+		return 0;
+
+	for_each_card_auxs(card, component) {
+		type = snd_soc_component_get_jack_type(component);
+		if (type > 0)
+			num++;
+	}
+	if (num < 1)
+		return 0;
+
+	priv->aux_jacks = devm_kcalloc(card->dev, num,
+				       sizeof(struct snd_soc_jack), GFP_KERNEL);
+	if (!priv->aux_jacks)
+		return -ENOMEM;
+
+	for_each_card_auxs(card, component) {
+		char id[128];
+		struct snd_soc_jack *jack;
+
+		if (found_jack_index >= num)
+			break;
+
+		type = snd_soc_component_get_jack_type(component);
+		if (type <= 0)
+			continue;
+
+		/* create jack */
+		jack = &(priv->aux_jacks[found_jack_index++]);
+		snprintf(id, sizeof(id), "%s-jack", component->name);
+		ret = snd_soc_card_jack_new(card, id, type, jack);
+		if (ret)
+			continue;
+
+		(void)snd_soc_component_set_jack(component, jack, NULL);
+	}
+	return 0;
+}
+EXPORT_SYMBOL_GPL(asoc_simple_init_aux_jacks);
+
+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_dai_link_component *dlcs;
+	struct snd_soc_codec_conf *cconf = NULL;
+	int i, dai_num = 0, dlc_num = 0, cnf_num = 0;
+
+	dai_props = devm_kcalloc(dev, li->link, sizeof(*dai_props), GFP_KERNEL);
+	dai_link  = devm_kcalloc(dev, li->link, sizeof(*dai_link),  GFP_KERNEL);
+	if (!dai_props || !dai_link)
+		return -ENOMEM;
+
+	/*
+	 * dais (= CPU+Codec)
+	 * dlcs (= CPU+Codec+Platform)
+	 */
+	for (i = 0; i < li->link; i++) {
+		int cc = li->num[i].cpus + li->num[i].codecs;
+
+		dai_num += cc;
+		dlc_num += cc + li->num[i].platforms;
+
+		if (!li->num[i].cpus)
+			cnf_num += li->num[i].codecs;
+	}
+
+	dais = devm_kcalloc(dev, dai_num, sizeof(*dais), GFP_KERNEL);
+	dlcs = devm_kcalloc(dev, dlc_num, sizeof(*dlcs), GFP_KERNEL);
+	if (!dais || !dlcs)
+		return -ENOMEM;
+
+	if (cnf_num) {
+		cconf = devm_kcalloc(dev, cnf_num, sizeof(*cconf), GFP_KERNEL);
+		if (!cconf)
+			return -ENOMEM;
+	}
+
+	dev_dbg(dev, "link %d, dais %d, ccnf %d\n",
+		li->link, dai_num, cnf_num);
+
+	priv->dai_props		= dai_props;
+	priv->dai_link		= dai_link;
+	priv->dais		= dais;
+	priv->dlcs		= dlcs;
+	priv->codec_conf	= cconf;
+
+	card->dai_link		= priv->dai_link;
+	card->num_links		= li->link;
+	card->codec_conf	= cconf;
+	card->num_configs	= cnf_num;
+
+	for (i = 0; i < li->link; i++) {
+		if (li->num[i].cpus) {
+			/* Normal CPU */
+			dai_link[i].cpus	= dlcs;
+			dai_props[i].num.cpus	=
+			dai_link[i].num_cpus	= li->num[i].cpus;
+			dai_props[i].cpu_dai	= dais;
+
+			dlcs += li->num[i].cpus;
+			dais += li->num[i].cpus;
+		} else {
+			/* DPCM Be's CPU = dummy */
+			dai_link[i].cpus	= &asoc_dummy_dlc;
+			dai_props[i].num.cpus	=
+			dai_link[i].num_cpus	= 1;
+		}
+
+		if (li->num[i].codecs) {
+			/* Normal Codec */
+			dai_link[i].codecs	= dlcs;
+			dai_props[i].num.codecs	=
+			dai_link[i].num_codecs	= li->num[i].codecs;
+			dai_props[i].codec_dai	= dais;
+
+			dlcs += li->num[i].codecs;
+			dais += li->num[i].codecs;
+
+			if (!li->num[i].cpus) {
+				/* DPCM Be's Codec */
+				dai_props[i].codec_conf = cconf;
+				cconf += li->num[i].codecs;
+			}
+		} else {
+			/* DPCM Fe's Codec = dummy */
+			dai_link[i].codecs	= &asoc_dummy_dlc;
+			dai_props[i].num.codecs	=
+			dai_link[i].num_codecs	= 1;
+		}
+
+		if (li->num[i].platforms) {
+			/* Have Platform */
+			dai_link[i].platforms		= dlcs;
+			dai_props[i].num.platforms	=
+			dai_link[i].num_platforms	= li->num[i].platforms;
+
+			dlcs += li->num[i].platforms;
+		} else {
+			/* Doesn't have Platform */
+			dai_link[i].platforms		= NULL;
+			dai_props[i].num.platforms	=
+			dai_link[i].num_platforms	= 0;
+		}
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(asoc_simple_init_priv);
+
+int asoc_simple_remove(struct platform_device *pdev)
+{
+	struct snd_soc_card *card = platform_get_drvdata(pdev);
+
+	asoc_simple_clean_reference(card);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(asoc_simple_remove);
+
+int asoc_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;
+}
+EXPORT_SYMBOL_GPL(asoc_graph_card_probe);
+
+int asoc_graph_is_ports0(struct device_node *np)
+{
+	struct device_node *port, *ports, *ports0, *top;
+	int ret;
+
+	/* np is "endpoint" or "port" */
+	if (of_node_name_eq(np, "endpoint")) {
+		port = of_get_parent(np);
+	} else {
+		port = np;
+		of_node_get(port);
+	}
+
+	ports	= of_get_parent(port);
+	top	= of_get_parent(ports);
+	ports0	= of_get_child_by_name(top, "ports");
+
+	ret = ports0 == ports;
+
+	of_node_put(port);
+	of_node_put(ports);
+	of_node_put(ports0);
+	of_node_put(top);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(asoc_graph_is_ports0);
+
+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;
+	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_property_present(ep,   "reg"))
+			return info.id;
+
+		node = of_get_parent(ep);
+		ret = of_property_present(node, "reg");
+		of_node_put(node);
+		if (ret)
+			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;
+}
+
+int asoc_graph_parse_dai(struct device *dev, struct device_node *ep,
+			 struct snd_soc_dai_link_component *dlc, int *is_single_link)
+{
+	struct device_node *node;
+	struct of_phandle_args args = {};
+	struct snd_soc_dai *dai;
+	int ret;
+
+	if (!ep)
+		return 0;
+
+	node = of_graph_get_port_parent(ep);
+
+	/*
+	 * Try to find from DAI node
+	 */
+	args.np = ep;
+	dai = snd_soc_get_dai_via_args(&args);
+	if (dai) {
+		dlc->dai_name = snd_soc_dai_name_get(dai);
+		dlc->dai_args = snd_soc_copy_dai_args(dev, &args);
+		if (!dlc->dai_args)
+			return -ENOMEM;
+
+		goto parse_dai_end;
+	}
+
+	/* 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_dlc(&args, dlc);
+	if (ret < 0) {
+		of_node_put(node);
+		return ret;
+	}
+
+parse_dai_end:
+	if (is_single_link)
+		*is_single_link = of_graph_get_endpoint_count(node) == 1;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(asoc_graph_parse_dai);
+
+/* 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..274417e39
--- /dev/null
+++ b/sound/soc/generic/simple-card.c
@@ -0,0 +1,839 @@
+// 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_platform(struct device_node *node,
+				      struct snd_soc_dai_link_component *dlc)
+{
+	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;
+
+	/* dai_name is not required and may not exist for plat component */
+
+	dlc->of_node = args.np;
+
+	return 0;
+}
+
+static int asoc_simple_parse_dai(struct device *dev,
+				 struct device_node *node,
+				 struct snd_soc_dai_link_component *dlc,
+				 int *is_single_link)
+{
+	struct of_phandle_args args;
+	struct snd_soc_dai *dai;
+	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;
+
+	/*
+	 * Try to find from DAI args
+	 */
+	dai = snd_soc_get_dai_via_args(&args);
+	if (dai) {
+		dlc->dai_name = snd_soc_dai_name_get(dai);
+		dlc->dai_args = snd_soc_copy_dai_args(dev, &args);
+		if (!dlc->dai_args)
+			return -ENOMEM;
+
+		goto parse_dai_end;
+	}
+
+	/*
+	 * 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_dlc(&args, dlc);
+	if (ret < 0)
+		return ret;
+
+parse_dai_end:
+	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(top,  PREFIX, adata);
+	asoc_simple_parse_convert(node, PREFIX, adata);
+	asoc_simple_parse_convert(node, NULL,   adata);
+	asoc_simple_parse_convert(np,   NULL,   adata);
+
+	of_node_put(node);
+}
+
+static void simple_parse_mclk_fs(struct device_node *top,
+				 struct device_node *np,
+				 struct simple_dai_props *props,
+				 char *prefix)
+{
+	struct device_node *node = of_get_parent(np);
+	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(np,	prop, &props->mclk_fs);
+
+	of_node_put(node);
+}
+
+static int simple_parse_node(struct asoc_simple_priv *priv,
+			     struct device_node *np,
+			     struct link_info *li,
+			     char *prefix,
+			     int *cpu)
+{
+	struct device *dev = simple_priv_to_dev(priv);
+	struct device_node *top = dev->of_node;
+	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 snd_soc_dai_link_component *dlc;
+	struct asoc_simple_dai *dai;
+	int ret;
+
+	if (cpu) {
+		dlc = asoc_link_to_cpu(dai_link, 0);
+		dai = simple_props_to_dai_cpu(dai_props, 0);
+	} else {
+		dlc = asoc_link_to_codec(dai_link, 0);
+		dai = simple_props_to_dai_codec(dai_props, 0);
+	}
+
+	simple_parse_mclk_fs(top, np, dai_props, prefix);
+
+	ret = asoc_simple_parse_dai(dev, np, dlc, cpu);
+	if (ret)
+		return ret;
+
+	ret = asoc_simple_parse_clk(dev, np, dai, dlc);
+	if (ret)
+		return ret;
+
+	ret = asoc_simple_parse_tdm(np, dai);
+	if (ret)
+		return ret;
+
+	return 0;
+}
+
+static int simple_link_init(struct asoc_simple_priv *priv,
+			    struct device_node *node,
+			    struct device_node *codec,
+			    struct link_info *li,
+			    char *prefix, char *name)
+{
+	struct device *dev = simple_priv_to_dev(priv);
+	struct snd_soc_dai_link *dai_link = simple_priv_to_link(priv, li->link);
+	int ret;
+
+	ret = asoc_simple_parse_daifmt(dev, node, codec,
+				       prefix, &dai_link->dai_fmt);
+	if (ret < 0)
+		return 0;
+
+	dai_link->init			= asoc_simple_dai_init;
+	dai_link->ops			= &simple_ops;
+
+	return asoc_simple_set_dailink_name(dev, dai_link, name);
+}
+
+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 device_node *top = dev->of_node;
+	struct device_node *node = of_get_parent(np);
+	char *prefix = "";
+	char dai_name[64];
+	int ret;
+
+	dev_dbg(dev, "link_of DPCM (%pOF)\n", np);
+
+	/* For single DAI link & old style of DT node */
+	if (is_top)
+		prefix = PREFIX;
+
+	if (li->cpu) {
+		struct snd_soc_dai_link_component *cpus = asoc_link_to_cpu(dai_link, 0);
+		struct snd_soc_dai_link_component *platforms = asoc_link_to_platform(dai_link, 0);
+		int is_single_links = 0;
+
+		/* Codec is dummy */
+
+		/* FE settings */
+		dai_link->dynamic		= 1;
+		dai_link->dpcm_merged_format	= 1;
+
+		ret = simple_parse_node(priv, np, li, prefix, &is_single_links);
+		if (ret < 0)
+			goto out_put_node;
+
+		snprintf(dai_name, sizeof(dai_name), "fe.%s", cpus->dai_name);
+
+		asoc_simple_canonicalize_cpu(cpus, is_single_links);
+		asoc_simple_canonicalize_platform(platforms, cpus);
+	} else {
+		struct snd_soc_dai_link_component *codecs = asoc_link_to_codec(dai_link, 0);
+		struct snd_soc_codec_conf *cconf;
+
+		/* CPU is dummy */
+
+		/* BE settings */
+		dai_link->no_pcm		= 1;
+		dai_link->be_hw_params_fixup	= asoc_simple_be_hw_params_fixup;
+
+		cconf	= simple_props_to_codec_conf(dai_props, 0);
+
+		ret = simple_parse_node(priv, np, li, prefix, NULL);
+		if (ret < 0)
+			goto out_put_node;
+
+		snprintf(dai_name, sizeof(dai_name), "be.%s", codecs->dai_name);
+
+		/* 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);
+
+	snd_soc_dai_link_set_capabilities(dai_link);
+
+	ret = simple_link_init(priv, node, codec, li, prefix, dai_name);
+
+out_put_node:
+	li->link++;
+
+	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 snd_soc_dai_link_component *cpus = asoc_link_to_cpu(dai_link, 0);
+	struct snd_soc_dai_link_component *codecs = asoc_link_to_codec(dai_link, 0);
+	struct snd_soc_dai_link_component *platforms = asoc_link_to_platform(dai_link, 0);
+	struct device_node *cpu = NULL;
+	struct device_node *node = NULL;
+	struct device_node *plat = NULL;
+	char dai_name[64];
+	char prop[128];
+	char *prefix = "";
+	int ret, single_cpu = 0;
+
+	cpu  = np;
+	node = of_get_parent(np);
+
+	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);
+
+	ret = simple_parse_node(priv, cpu, li, prefix, &single_cpu);
+	if (ret < 0)
+		goto dai_link_of_err;
+
+	ret = simple_parse_node(priv, codec, li, prefix, NULL);
+	if (ret < 0)
+		goto dai_link_of_err;
+
+	ret = asoc_simple_parse_platform(plat, platforms);
+	if (ret < 0)
+		goto dai_link_of_err;
+
+	snprintf(dai_name, sizeof(dai_name),
+		 "%s-%s", cpus->dai_name, codecs->dai_name);
+
+	asoc_simple_canonicalize_cpu(cpus, single_cpu);
+	asoc_simple_canonicalize_platform(platforms, cpus);
+
+	ret = simple_link_init(priv, node, codec, li, prefix, dai_name);
+
+dai_link_of_err:
+	of_node_put(plat);
+	of_node_put(node);
+
+	li->link++;
+
+	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;
+	struct device_node *add_devs;
+	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;
+	}
+
+	add_devs = of_get_child_by_name(top, PREFIX "additional-devs");
+
+	/* 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);
+
+		/* Skip additional-devs node */
+		if (node == add_devs) {
+			node = of_get_next_child(top, node);
+			continue;
+		}
+
+		/* 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) {
+			if (np == add_devs)
+				continue;
+			simple_parse_convert(dev, np, &adata);
+		}
+
+		/* loop for all CPU/Codec node */
+		for_each_child_of_node(node, np) {
+			if (plat == np || add_devs == np)
+				continue;
+			/*
+			 * It is DPCM
+			 * if it has many CPUs,
+			 * or has convert-xxx property
+			 */
+			if (dpcm_selectable &&
+			    (num > 2 || asoc_simple_is_convert_required(&adata))) {
+				/*
+				 * np
+				 *	 |1(CPU)|0(Codec)  li->cpu
+				 * CPU	 |Pass  |return
+				 * Codec |return|Pass
+				 */
+				if (li->cpu != (np == codec))
+					ret = func_dpcm(priv, np, codec, li, is_top);
+			/* else normal sound */
+			} else {
+				/*
+				 * np
+				 *	 |1(CPU)|0(Codec)  li->cpu
+				 * CPU	 |Pass  |return
+				 * Codec |return|return
+				 */
+				if (li->cpu && (np != codec))
+					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);
+		of_node_put(plat);
+		node = of_get_next_child(top, node);
+	} while (!is_top && node);
+
+ error:
+	of_node_put(add_devs);
+	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))
+{
+	int ret;
+	/*
+	 * 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;
+	 */
+	for (li->cpu = 1; li->cpu >= 0; li->cpu--) {
+		ret = __simple_for_each_link(priv, li, func_noml, func_dpcm);
+		if (ret < 0)
+			break;
+	}
+
+	return ret;
+}
+
+static void simple_depopulate_aux(void *data)
+{
+	struct asoc_simple_priv *priv = data;
+
+	of_platform_depopulate(simple_priv_to_dev(priv));
+}
+
+static int simple_populate_aux(struct asoc_simple_priv *priv)
+{
+	struct device *dev = simple_priv_to_dev(priv);
+	struct device_node *node;
+	int ret;
+
+	node = of_get_child_by_name(dev->of_node, PREFIX "additional-devs");
+	if (!node)
+		return 0;
+
+	ret = of_platform_populate(node, NULL, NULL, dev);
+	of_node_put(node);
+	if (ret)
+		return ret;
+
+	return devm_add_action_or_reset(dev, simple_depopulate_aux, priv);
+}
+
+static int simple_parse_of(struct asoc_simple_priv *priv, struct link_info *li)
+{
+	struct snd_soc_card *card = simple_priv_to_card(priv);
+	int ret;
+
+	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));
+	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 = simple_populate_aux(priv);
+	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)
+{
+	if (li->link >= SNDRV_MAX_LINKS) {
+		struct device *dev = simple_priv_to_dev(priv);
+
+		dev_err(dev, "too many links\n");
+		return -EINVAL;
+	}
+
+	/*
+	 * DON'T REMOVE platforms
+	 *
+	 * Some CPU might be using soc-generic-dmaengine-pcm. This means CPU and Platform
+	 * are different Component, but are sharing same component->dev.
+	 * Simple Card had been supported it without special Platform selection.
+	 * We need platforms here.
+	 *
+	 * In case of no Platform, it will be Platform == CPU, but Platform will be
+	 * ignored by snd_soc_rtd_add_component().
+	 *
+	 * see
+	 *	simple-card-utils.c :: asoc_simple_canonicalize_platform()
+	 */
+	li->num[li->link].cpus		= 1;
+	li->num[li->link].platforms	= 1;
+
+	li->num[li->link].codecs	= 1;
+
+	li->link += 1;
+
+	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)
+{
+	if (li->link >= SNDRV_MAX_LINKS) {
+		struct device *dev = simple_priv_to_dev(priv);
+
+		dev_err(dev, "too many links\n");
+		return -EINVAL;
+	}
+
+	if (li->cpu) {
+		/*
+		 * DON'T REMOVE platforms
+		 * see
+		 *	simple_count_noml()
+		 */
+		li->num[li->link].cpus		= 1;
+		li->num[li->link].platforms	= 1;
+
+		li->link++; /* CPU-dummy */
+	} else {
+		li->num[li->link].codecs	= 1;
+
+		li->link++; /* dummy-Codec */
+	}
+
+	return 0;
+}
+
+static int 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->num[0].cpus		= 1;
+		li->num[0].codecs	= 1;
+		li->num[0].platforms	= 1;
+
+		li->link = 1;
+		return 0;
+	}
+
+	return simple_for_each_link(priv, li,
+				    simple_count_noml,
+				    simple_count_dpcm);
+}
+
+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;
+
+	ret = asoc_simple_init_aux_jacks(priv, 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;
+	card->driver_name       = "simple-card";
+
+	li = devm_kzalloc(dev, sizeof(*li), GFP_KERNEL);
+	if (!li)
+		return -ENOMEM;
+
+	ret = simple_get_dais_count(priv, li);
+	if (ret < 0)
+		return ret;
+
+	if (!li->link)
+		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, li);
+		if (ret < 0) {
+			dev_err_probe(dev, ret, "parse error\n");
+			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;
+
+		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;
+		}
+
+		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;
+
+	devm_kfree(dev, li);
+	return 0;
+err:
+	asoc_simple_clean_reference(card);
+
+	return ret;
+}
+
+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>");
diff --git a/sound/soc/generic/test-component.c b/sound/soc/generic/test-component.c
new file mode 100644
index 000000000..e10e5bf28
--- /dev/null
+++ b/sound/soc/generic/test-component.c
@@ -0,0 +1,656 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// test-component.c  --  Test Audio Component driver
+//
+// Copyright (C) 2020 Renesas Electronics Corporation
+// Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
+
+#include <linux/slab.h>
+#include <linux/of_device.h>
+#include <linux/of_graph.h>
+#include <linux/module.h>
+#include <linux/workqueue.h>
+#include <sound/pcm.h>
+#include <sound/soc.h>
+
+#define TEST_NAME_LEN 32
+struct test_dai_name {
+	char name[TEST_NAME_LEN];
+	char name_playback[TEST_NAME_LEN];
+	char name_capture[TEST_NAME_LEN];
+};
+
+struct test_priv {
+	struct device *dev;
+	struct snd_pcm_substream *substream;
+	struct delayed_work dwork;
+	struct snd_soc_component_driver *component_driver;
+	struct snd_soc_dai_driver *dai_driver;
+	struct test_dai_name *name;
+};
+
+struct test_adata {
+	u32 is_cpu:1;
+	u32 cmp_v:1;
+	u32 dai_v:1;
+};
+
+#define mile_stone(d)		dev_info((d)->dev, "%s() : %s", __func__, (d)->driver->name)
+#define mile_stone_x(dev)	dev_info(dev, "%s()", __func__)
+
+static int test_dai_set_sysclk(struct snd_soc_dai *dai,
+			       int clk_id, unsigned int freq, int dir)
+{
+	mile_stone(dai);
+
+	return 0;
+}
+
+static int test_dai_set_pll(struct snd_soc_dai *dai, int pll_id, int source,
+			    unsigned int freq_in, unsigned int freq_out)
+{
+	mile_stone(dai);
+
+	return 0;
+}
+
+static int test_dai_set_clkdiv(struct snd_soc_dai *dai, int div_id, int div)
+{
+	mile_stone(dai);
+
+	return 0;
+}
+
+static int test_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
+{
+	unsigned int format = fmt & SND_SOC_DAIFMT_FORMAT_MASK;
+	unsigned int clock  = fmt & SND_SOC_DAIFMT_CLOCK_MASK;
+	unsigned int inv    = fmt & SND_SOC_DAIFMT_INV_MASK;
+	unsigned int master = fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK;
+	char *str;
+
+	dev_info(dai->dev, "name   : %s", dai->name);
+
+	str = "unknown";
+	switch (format) {
+	case SND_SOC_DAIFMT_I2S:
+		str = "i2s";
+		break;
+	case SND_SOC_DAIFMT_RIGHT_J:
+		str = "right_j";
+		break;
+	case SND_SOC_DAIFMT_LEFT_J:
+		str = "left_j";
+		break;
+	case SND_SOC_DAIFMT_DSP_A:
+		str = "dsp_a";
+		break;
+	case SND_SOC_DAIFMT_DSP_B:
+		str = "dsp_b";
+		break;
+	case SND_SOC_DAIFMT_AC97:
+		str = "ac97";
+		break;
+	case SND_SOC_DAIFMT_PDM:
+		str = "pdm";
+		break;
+	}
+	dev_info(dai->dev, "format : %s", str);
+
+	if (clock == SND_SOC_DAIFMT_CONT)
+		str = "continuous";
+	else
+		str = "gated";
+	dev_info(dai->dev, "clock  : %s", str);
+
+	str = "unknown";
+	switch (master) {
+	case SND_SOC_DAIFMT_BP_FP:
+		str = "clk provider, frame provider";
+		break;
+	case SND_SOC_DAIFMT_BC_FP:
+		str = "clk consumer, frame provider";
+		break;
+	case SND_SOC_DAIFMT_BP_FC:
+		str = "clk provider, frame consumer";
+		break;
+	case SND_SOC_DAIFMT_BC_FC:
+		str = "clk consumer, frame consumer";
+		break;
+	}
+	dev_info(dai->dev, "clock  : codec is %s", str);
+
+	str = "unknown";
+	switch (inv) {
+	case SND_SOC_DAIFMT_NB_NF:
+		str = "normal bit, normal frame";
+		break;
+	case SND_SOC_DAIFMT_NB_IF:
+		str = "normal bit, invert frame";
+		break;
+	case SND_SOC_DAIFMT_IB_NF:
+		str = "invert bit, normal frame";
+		break;
+	case SND_SOC_DAIFMT_IB_IF:
+		str = "invert bit, invert frame";
+		break;
+	}
+	dev_info(dai->dev, "signal : %s", str);
+
+	return 0;
+}
+
+static int test_dai_mute_stream(struct snd_soc_dai *dai, int mute, int stream)
+{
+	mile_stone(dai);
+
+	return 0;
+}
+
+static int test_dai_startup(struct snd_pcm_substream *substream, struct snd_soc_dai *dai)
+{
+	mile_stone(dai);
+
+	return 0;
+}
+
+static void test_dai_shutdown(struct snd_pcm_substream *substream, struct snd_soc_dai *dai)
+{
+	mile_stone(dai);
+}
+
+static int test_dai_hw_params(struct snd_pcm_substream *substream,
+			      struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
+{
+	mile_stone(dai);
+
+	return 0;
+}
+
+static int test_dai_hw_free(struct snd_pcm_substream *substream, struct snd_soc_dai *dai)
+{
+	mile_stone(dai);
+
+	return 0;
+}
+
+static int test_dai_trigger(struct snd_pcm_substream *substream, int cmd, struct snd_soc_dai *dai)
+{
+	mile_stone(dai);
+
+	return 0;
+}
+
+static int test_dai_bespoke_trigger(struct snd_pcm_substream *substream,
+				    int cmd, struct snd_soc_dai *dai)
+{
+	mile_stone(dai);
+
+	return 0;
+}
+
+static u64 test_dai_formats =
+	/*
+	 * Select below from Sound Card, not auto
+	 *	SND_SOC_POSSIBLE_DAIFMT_BP_FP
+	 *	SND_SOC_POSSIBLE_DAIFMT_BC_FP
+	 *	SND_SOC_POSSIBLE_DAIFMT_BP_FC
+	 *	SND_SOC_POSSIBLE_DAIFMT_BC_FC
+	 */
+	SND_SOC_POSSIBLE_DAIFMT_I2S	|
+	SND_SOC_POSSIBLE_DAIFMT_RIGHT_J	|
+	SND_SOC_POSSIBLE_DAIFMT_LEFT_J	|
+	SND_SOC_POSSIBLE_DAIFMT_DSP_A	|
+	SND_SOC_POSSIBLE_DAIFMT_DSP_B	|
+	SND_SOC_POSSIBLE_DAIFMT_AC97	|
+	SND_SOC_POSSIBLE_DAIFMT_PDM	|
+	SND_SOC_POSSIBLE_DAIFMT_NB_NF	|
+	SND_SOC_POSSIBLE_DAIFMT_NB_IF	|
+	SND_SOC_POSSIBLE_DAIFMT_IB_NF	|
+	SND_SOC_POSSIBLE_DAIFMT_IB_IF;
+
+static const struct snd_soc_dai_ops test_ops = {
+	.set_fmt		= test_dai_set_fmt,
+	.startup		= test_dai_startup,
+	.shutdown		= test_dai_shutdown,
+	.auto_selectable_formats	= &test_dai_formats,
+	.num_auto_selectable_formats	= 1,
+};
+
+static const struct snd_soc_dai_ops test_verbose_ops = {
+	.set_sysclk		= test_dai_set_sysclk,
+	.set_pll		= test_dai_set_pll,
+	.set_clkdiv		= test_dai_set_clkdiv,
+	.set_fmt		= test_dai_set_fmt,
+	.mute_stream		= test_dai_mute_stream,
+	.startup		= test_dai_startup,
+	.shutdown		= test_dai_shutdown,
+	.hw_params		= test_dai_hw_params,
+	.hw_free		= test_dai_hw_free,
+	.trigger		= test_dai_trigger,
+	.bespoke_trigger	= test_dai_bespoke_trigger,
+	.auto_selectable_formats	= &test_dai_formats,
+	.num_auto_selectable_formats	= 1,
+};
+
+#define STUB_RATES	SNDRV_PCM_RATE_8000_384000
+#define STUB_FORMATS	(SNDRV_PCM_FMTBIT_S8		| \
+			 SNDRV_PCM_FMTBIT_U8		| \
+			 SNDRV_PCM_FMTBIT_S16_LE	| \
+			 SNDRV_PCM_FMTBIT_U16_LE	| \
+			 SNDRV_PCM_FMTBIT_S24_LE	| \
+			 SNDRV_PCM_FMTBIT_S24_3LE	| \
+			 SNDRV_PCM_FMTBIT_U24_LE	| \
+			 SNDRV_PCM_FMTBIT_S32_LE	| \
+			 SNDRV_PCM_FMTBIT_U32_LE)
+
+static int test_component_probe(struct snd_soc_component *component)
+{
+	mile_stone(component);
+
+	return 0;
+}
+
+static void test_component_remove(struct snd_soc_component *component)
+{
+	mile_stone(component);
+}
+
+static int test_component_suspend(struct snd_soc_component *component)
+{
+	mile_stone(component);
+
+	return 0;
+}
+
+static int test_component_resume(struct snd_soc_component *component)
+{
+	mile_stone(component);
+
+	return 0;
+}
+
+#define PREALLOC_BUFFER		(32 * 1024)
+static int test_component_pcm_construct(struct snd_soc_component *component,
+					struct snd_soc_pcm_runtime *rtd)
+{
+	mile_stone(component);
+
+	snd_pcm_set_managed_buffer_all(
+		rtd->pcm,
+		SNDRV_DMA_TYPE_DEV,
+		rtd->card->snd_card->dev,
+		PREALLOC_BUFFER, PREALLOC_BUFFER);
+
+	return 0;
+}
+
+static void test_component_pcm_destruct(struct snd_soc_component *component,
+					struct snd_pcm *pcm)
+{
+	mile_stone(component);
+}
+
+static int test_component_set_sysclk(struct snd_soc_component *component,
+				     int clk_id, int source, unsigned int freq, int dir)
+{
+	mile_stone(component);
+
+	return 0;
+}
+
+static int test_component_set_pll(struct snd_soc_component *component, int pll_id,
+				  int source, unsigned int freq_in, unsigned int freq_out)
+{
+	mile_stone(component);
+
+	return 0;
+}
+
+static int test_component_set_jack(struct snd_soc_component *component,
+				   struct snd_soc_jack *jack,  void *data)
+{
+	mile_stone(component);
+
+	return 0;
+}
+
+static void test_component_seq_notifier(struct snd_soc_component *component,
+					enum snd_soc_dapm_type type, int subseq)
+{
+	mile_stone(component);
+}
+
+static int test_component_stream_event(struct snd_soc_component *component, int event)
+{
+	mile_stone(component);
+
+	return 0;
+}
+
+static int test_component_set_bias_level(struct snd_soc_component *component,
+					 enum snd_soc_bias_level level)
+{
+	mile_stone(component);
+
+	return 0;
+}
+
+static const struct snd_pcm_hardware test_component_hardware = {
+	/* Random values to keep userspace happy when checking constraints */
+	.info			= SNDRV_PCM_INFO_INTERLEAVED	|
+				  SNDRV_PCM_INFO_MMAP		|
+				  SNDRV_PCM_INFO_MMAP_VALID,
+	.buffer_bytes_max	= 32 * 1024,
+	.period_bytes_min	= 32,
+	.period_bytes_max	= 8192,
+	.periods_min		= 1,
+	.periods_max		= 128,
+	.fifo_size		= 256,
+};
+
+static int test_component_open(struct snd_soc_component *component,
+			       struct snd_pcm_substream *substream)
+{
+	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
+
+	mile_stone(component);
+
+	/* BE's dont need dummy params */
+	if (!rtd->dai_link->no_pcm)
+		snd_soc_set_runtime_hwparams(substream, &test_component_hardware);
+
+	return 0;
+}
+
+static int test_component_close(struct snd_soc_component *component,
+				struct snd_pcm_substream *substream)
+{
+	mile_stone(component);
+
+	return 0;
+}
+
+static int test_component_ioctl(struct snd_soc_component *component,
+				struct snd_pcm_substream *substream,
+				unsigned int cmd, void *arg)
+{
+	mile_stone(component);
+
+	return 0;
+}
+
+static int test_component_hw_params(struct snd_soc_component *component,
+				    struct snd_pcm_substream *substream,
+				    struct snd_pcm_hw_params *params)
+{
+	mile_stone(component);
+
+	return 0;
+}
+
+static int test_component_hw_free(struct snd_soc_component *component,
+				  struct snd_pcm_substream *substream)
+{
+	mile_stone(component);
+
+	return 0;
+}
+
+static int test_component_prepare(struct snd_soc_component *component,
+				  struct snd_pcm_substream *substream)
+{
+	mile_stone(component);
+
+	return 0;
+}
+
+static void test_component_timer_stop(struct test_priv *priv)
+{
+	cancel_delayed_work(&priv->dwork);
+}
+
+static void test_component_timer_start(struct test_priv *priv)
+{
+	schedule_delayed_work(&priv->dwork, msecs_to_jiffies(10));
+}
+
+static void test_component_dwork(struct work_struct *work)
+{
+	struct test_priv *priv = container_of(work, struct test_priv, dwork.work);
+
+	if (priv->substream)
+		snd_pcm_period_elapsed(priv->substream);
+
+	test_component_timer_start(priv);
+}
+
+static int test_component_trigger(struct snd_soc_component *component,
+				  struct snd_pcm_substream *substream, int cmd)
+{
+	struct test_priv *priv = dev_get_drvdata(component->dev);
+
+	mile_stone(component);
+
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+		test_component_timer_start(priv);
+		priv->substream = substream; /* set substream later */
+		break;
+	case SNDRV_PCM_TRIGGER_STOP:
+		priv->substream = NULL;
+		test_component_timer_stop(priv);
+	}
+
+	return 0;
+}
+
+static int test_component_sync_stop(struct snd_soc_component *component,
+				    struct snd_pcm_substream *substream)
+{
+	mile_stone(component);
+
+	return 0;
+}
+
+static snd_pcm_uframes_t test_component_pointer(struct snd_soc_component *component,
+						struct snd_pcm_substream *substream)
+{
+	struct snd_pcm_runtime *runtime = substream->runtime;
+	static int pointer;
+
+	if (!runtime)
+		return 0;
+
+	pointer += 10;
+	if (pointer > PREALLOC_BUFFER)
+		pointer = 0;
+
+	/* mile_stone(component); */
+
+	return bytes_to_frames(runtime, pointer);
+}
+
+static int test_component_get_time_info(struct snd_soc_component *component,
+					struct snd_pcm_substream *substream,
+					struct timespec64 *system_ts,
+					struct timespec64 *audio_ts,
+					struct snd_pcm_audio_tstamp_config *audio_tstamp_config,
+					struct snd_pcm_audio_tstamp_report *audio_tstamp_report)
+{
+	mile_stone(component);
+
+	return 0;
+}
+
+static int test_component_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
+					     struct snd_pcm_hw_params *params)
+{
+	mile_stone_x(rtd->dev);
+
+	return 0;
+}
+
+/* CPU */
+static const struct test_adata test_cpu		= { .is_cpu = 1, .cmp_v = 0, .dai_v = 0, };
+static const struct test_adata test_cpu_vv	= { .is_cpu = 1, .cmp_v = 1, .dai_v = 1, };
+static const struct test_adata test_cpu_nv	= { .is_cpu = 1, .cmp_v = 0, .dai_v = 1, };
+static const struct test_adata test_cpu_vn	= { .is_cpu = 1, .cmp_v = 1, .dai_v = 0, };
+/* Codec */
+static const struct test_adata test_codec	= { .is_cpu = 0, .cmp_v = 0, .dai_v = 0, };
+static const struct test_adata test_codec_vv	= { .is_cpu = 0, .cmp_v = 1, .dai_v = 1, };
+static const struct test_adata test_codec_nv	= { .is_cpu = 0, .cmp_v = 0, .dai_v = 1, };
+static const struct test_adata test_codec_vn	= { .is_cpu = 0, .cmp_v = 1, .dai_v = 0, };
+
+static const struct of_device_id test_of_match[] = {
+	{ .compatible = "test-cpu",			.data = (void *)&test_cpu,    },
+	{ .compatible = "test-cpu-verbose",		.data = (void *)&test_cpu_vv, },
+	{ .compatible = "test-cpu-verbose-dai",		.data = (void *)&test_cpu_nv, },
+	{ .compatible = "test-cpu-verbose-component",	.data = (void *)&test_cpu_vn, },
+	{ .compatible = "test-codec",			.data = (void *)&test_codec,    },
+	{ .compatible = "test-codec-verbose",		.data = (void *)&test_codec_vv, },
+	{ .compatible = "test-codec-verbose-dai",	.data = (void *)&test_codec_nv, },
+	{ .compatible = "test-codec-verbose-component",	.data = (void *)&test_codec_vn, },
+	{},
+};
+MODULE_DEVICE_TABLE(of, test_of_match);
+
+static const struct snd_soc_dapm_widget widgets[] = {
+	/*
+	 * FIXME
+	 *
+	 * Just IN/OUT is OK for now,
+	 * but need to be updated ?
+	 */
+	SND_SOC_DAPM_INPUT("IN"),
+	SND_SOC_DAPM_OUTPUT("OUT"),
+};
+
+static int test_driver_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct device_node *node = dev->of_node;
+	struct device_node *ep;
+	const struct test_adata *adata = of_device_get_match_data(&pdev->dev);
+	struct snd_soc_component_driver *cdriv;
+	struct snd_soc_dai_driver *ddriv;
+	struct test_dai_name *dname;
+	struct test_priv *priv;
+	int num, ret, i;
+
+	num = of_graph_get_endpoint_count(node);
+	if (!num) {
+		dev_err(dev, "no port exits\n");
+		return -EINVAL;
+	}
+
+	priv	= devm_kzalloc(dev, sizeof(*priv),		GFP_KERNEL);
+	cdriv	= devm_kzalloc(dev, sizeof(*cdriv),		GFP_KERNEL);
+	ddriv	= devm_kzalloc(dev, sizeof(*ddriv) * num,	GFP_KERNEL);
+	dname	= devm_kzalloc(dev, sizeof(*dname) * num,	GFP_KERNEL);
+	if (!priv || !cdriv || !ddriv || !dname || !adata)
+		return -EINVAL;
+
+	priv->dev		= dev;
+	priv->component_driver	= cdriv;
+	priv->dai_driver	= ddriv;
+	priv->name		= dname;
+
+	INIT_DELAYED_WORK(&priv->dwork, test_component_dwork);
+	dev_set_drvdata(dev, priv);
+
+	if (adata->is_cpu) {
+		cdriv->name			= "test_cpu";
+		cdriv->pcm_construct		= test_component_pcm_construct;
+		cdriv->pointer			= test_component_pointer;
+		cdriv->trigger			= test_component_trigger;
+		cdriv->legacy_dai_naming	= 1;
+	} else {
+		cdriv->name			= "test_codec";
+		cdriv->idle_bias_on		= 1;
+		cdriv->endianness		= 1;
+	}
+
+	cdriv->open		= test_component_open;
+	cdriv->dapm_widgets	= widgets;
+	cdriv->num_dapm_widgets	= ARRAY_SIZE(widgets);
+
+	if (adata->cmp_v) {
+		cdriv->probe			= test_component_probe;
+		cdriv->remove			= test_component_remove;
+		cdriv->suspend			= test_component_suspend;
+		cdriv->resume			= test_component_resume;
+		cdriv->set_sysclk		= test_component_set_sysclk;
+		cdriv->set_pll			= test_component_set_pll;
+		cdriv->set_jack			= test_component_set_jack;
+		cdriv->seq_notifier		= test_component_seq_notifier;
+		cdriv->stream_event		= test_component_stream_event;
+		cdriv->set_bias_level		= test_component_set_bias_level;
+		cdriv->close			= test_component_close;
+		cdriv->ioctl			= test_component_ioctl;
+		cdriv->hw_params		= test_component_hw_params;
+		cdriv->hw_free			= test_component_hw_free;
+		cdriv->prepare			= test_component_prepare;
+		cdriv->sync_stop		= test_component_sync_stop;
+		cdriv->get_time_info		= test_component_get_time_info;
+		cdriv->be_hw_params_fixup	= test_component_be_hw_params_fixup;
+
+		if (adata->is_cpu)
+			cdriv->pcm_destruct	= test_component_pcm_destruct;
+	}
+
+	i = 0;
+	for_each_endpoint_of_node(node, ep) {
+		snprintf(dname[i].name, TEST_NAME_LEN, "%s.%d", node->name, i);
+		ddriv[i].name = dname[i].name;
+
+		snprintf(dname[i].name_playback, TEST_NAME_LEN, "DAI%d Playback", i);
+		ddriv[i].playback.stream_name	= dname[i].name_playback;
+		ddriv[i].playback.channels_min	= 1;
+		ddriv[i].playback.channels_max	= 384;
+		ddriv[i].playback.rates		= STUB_RATES;
+		ddriv[i].playback.formats	= STUB_FORMATS;
+
+		snprintf(dname[i].name_capture, TEST_NAME_LEN, "DAI%d Capture", i);
+		ddriv[i].capture.stream_name	= dname[i].name_capture;
+		ddriv[i].capture.channels_min	= 1;
+		ddriv[i].capture.channels_max	= 384;
+		ddriv[i].capture.rates		= STUB_RATES;
+		ddriv[i].capture.formats	= STUB_FORMATS;
+
+		if (adata->dai_v)
+			ddriv[i].ops = &test_verbose_ops;
+		else
+			ddriv[i].ops = &test_ops;
+
+		i++;
+	}
+
+	ret = devm_snd_soc_register_component(dev, cdriv, ddriv, num);
+	if (ret < 0)
+		return ret;
+
+	mile_stone_x(dev);
+
+	return 0;
+}
+
+static void test_driver_remove(struct platform_device *pdev)
+{
+	mile_stone_x(&pdev->dev);
+}
+
+static struct platform_driver test_driver = {
+	.driver = {
+		.name = "test-component",
+		.of_match_table = test_of_match,
+	},
+	.probe  = test_driver_probe,
+	.remove_new = test_driver_remove,
+};
+module_platform_driver(test_driver);
+
+MODULE_ALIAS("platform:asoc-test-component");
+MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");
+MODULE_DESCRIPTION("ASoC Test Component");
+MODULE_LICENSE("GPL v2");