Adding upstream version 4.19.249.upstream/4.19.249

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

7 files changed, 2113 insertions, 0 deletions

diff --git a/sound/soc/generic/Kconfig b/sound/soc/generic/Kconfig
new file mode 100644
index 000000000..c954be0a0
--- /dev/null
+++ b/sound/soc/generic/Kconfig
@@ -0,0 +1,33 @@
+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
+
+config SND_SIMPLE_SCU_CARD
+	tristate "ASoC Simple SCU sound card support"
+	depends on OF
+	select SND_SIMPLE_CARD_UTILS
+	help
+	  This option enables generic simple SCU sound card support.
+	  It supports DPCM of multi CPU single Codec system.
+
+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 simple sound card support
+	  with OF-graph DT bindings.
+
+config SND_AUDIO_GRAPH_SCU_CARD
+	tristate "ASoC Audio Graph SCU sound card support"
+	depends on OF
+	select SND_SIMPLE_CARD_UTILS
+	help
+	  This option enables generic simple SCU sound card support
+	  with OF-graph DT bindings.
+	  It supports DPCM of multi CPU single Codec ststem.
diff --git a/sound/soc/generic/Makefile b/sound/soc/generic/Makefile
new file mode 100644
index 000000000..9dec293a4
--- /dev/null
+++ b/sound/soc/generic/Makefile
@@ -0,0 +1,12 @@
+# 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-simple-scu-card-objs	:= simple-scu-card.o
+snd-soc-audio-graph-card-objs	:= audio-graph-card.o
+snd-soc-audio-graph-scu-card-objs	:= audio-graph-scu-card.o
+
+obj-$(CONFIG_SND_SIMPLE_CARD_UTILS)	+= snd-soc-simple-card-utils.o
+obj-$(CONFIG_SND_SIMPLE_CARD)		+= snd-soc-simple-card.o
+obj-$(CONFIG_SND_SIMPLE_SCU_CARD)	+= snd-soc-simple-scu-card.o
+obj-$(CONFIG_SND_AUDIO_GRAPH_CARD)	+= snd-soc-audio-graph-card.o
+obj-$(CONFIG_SND_AUDIO_GRAPH_SCU_CARD)	+= snd-soc-audio-graph-scu-card.o
diff --git a/sound/soc/generic/audio-graph-card.c b/sound/soc/generic/audio-graph-card.c
new file mode 100644
index 000000000..2094d2c89
--- /dev/null
+++ b/sound/soc/generic/audio-graph-card.c
@@ -0,0 +1,385 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// ASoC audio graph sound card support
+//
+// Copyright (C) 2016 Renesas Solutions Corp.
+// Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
+//
+// based on ${LINUX}/sound/soc/generic/simple-card.c
+
+#include <linux/clk.h>
+#include <linux/device.h>
+#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/of_gpio.h>
+#include <linux/of_graph.h>
+#include <linux/platform_device.h>
+#include <linux/string.h>
+#include <sound/simple_card_utils.h>
+
+struct graph_card_data {
+	struct snd_soc_card snd_card;
+	struct graph_dai_props {
+		struct asoc_simple_dai cpu_dai;
+		struct asoc_simple_dai codec_dai;
+		unsigned int mclk_fs;
+	} *dai_props;
+	unsigned int mclk_fs;
+	struct asoc_simple_jack hp_jack;
+	struct asoc_simple_jack mic_jack;
+	struct snd_soc_dai_link *dai_link;
+	struct gpio_desc *pa_gpio;
+};
+
+static int asoc_graph_card_outdrv_event(struct snd_soc_dapm_widget *w,
+					struct snd_kcontrol *kcontrol,
+					int event)
+{
+	struct snd_soc_dapm_context *dapm = w->dapm;
+	struct graph_card_data *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 asoc_graph_card_dapm_widgets[] = {
+	SND_SOC_DAPM_OUT_DRV_E("Amplifier", SND_SOC_NOPM,
+			       0, 0, NULL, 0, asoc_graph_card_outdrv_event,
+			       SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
+};
+
+#define graph_priv_to_card(priv) (&(priv)->snd_card)
+#define graph_priv_to_props(priv, i) ((priv)->dai_props + (i))
+#define graph_priv_to_dev(priv) (graph_priv_to_card(priv)->dev)
+#define graph_priv_to_link(priv, i) (graph_priv_to_card(priv)->dai_link + (i))
+
+static int asoc_graph_card_startup(struct snd_pcm_substream *substream)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct graph_card_data *priv = snd_soc_card_get_drvdata(rtd->card);
+	struct graph_dai_props *dai_props = graph_priv_to_props(priv, rtd->num);
+	int ret;
+
+	ret = asoc_simple_card_clk_enable(&dai_props->cpu_dai);
+	if (ret)
+		return ret;
+
+	ret = asoc_simple_card_clk_enable(&dai_props->codec_dai);
+	if (ret)
+		asoc_simple_card_clk_disable(&dai_props->cpu_dai);
+
+	return ret;
+}
+
+static void asoc_graph_card_shutdown(struct snd_pcm_substream *substream)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct graph_card_data *priv = snd_soc_card_get_drvdata(rtd->card);
+	struct graph_dai_props *dai_props = graph_priv_to_props(priv, rtd->num);
+
+	asoc_simple_card_clk_disable(&dai_props->cpu_dai);
+
+	asoc_simple_card_clk_disable(&dai_props->codec_dai);
+}
+
+static int asoc_graph_card_hw_params(struct snd_pcm_substream *substream,
+				     struct snd_pcm_hw_params *params)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct snd_soc_dai *codec_dai = rtd->codec_dai;
+	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+	struct graph_card_data *priv = snd_soc_card_get_drvdata(rtd->card);
+	struct graph_dai_props *dai_props = graph_priv_to_props(priv, rtd->num);
+	unsigned int mclk, mclk_fs = 0;
+	int ret = 0;
+
+	if (priv->mclk_fs)
+		mclk_fs = priv->mclk_fs;
+	else if (dai_props->mclk_fs)
+		mclk_fs = dai_props->mclk_fs;
+
+	if (mclk_fs) {
+		mclk = params_rate(params) * mclk_fs;
+		ret = snd_soc_dai_set_sysclk(codec_dai, 0, mclk,
+					     SND_SOC_CLOCK_IN);
+		if (ret && ret != -ENOTSUPP)
+			goto err;
+
+		ret = snd_soc_dai_set_sysclk(cpu_dai, 0, mclk,
+					     SND_SOC_CLOCK_OUT);
+		if (ret && ret != -ENOTSUPP)
+			goto err;
+	}
+	return 0;
+err:
+	return ret;
+}
+
+static const struct snd_soc_ops asoc_graph_card_ops = {
+	.startup = asoc_graph_card_startup,
+	.shutdown = asoc_graph_card_shutdown,
+	.hw_params = asoc_graph_card_hw_params,
+};
+
+static int asoc_graph_card_dai_init(struct snd_soc_pcm_runtime *rtd)
+{
+	struct graph_card_data *priv =	snd_soc_card_get_drvdata(rtd->card);
+	struct snd_soc_dai *codec = rtd->codec_dai;
+	struct snd_soc_dai *cpu = rtd->cpu_dai;
+	struct graph_dai_props *dai_props =
+		graph_priv_to_props(priv, rtd->num);
+	int ret;
+
+	ret = asoc_simple_card_init_dai(codec, &dai_props->codec_dai);
+	if (ret < 0)
+		return ret;
+
+	ret = asoc_simple_card_init_dai(cpu, &dai_props->cpu_dai);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
+static int asoc_graph_card_dai_link_of(struct device_node *cpu_port,
+					struct graph_card_data *priv,
+					int idx)
+{
+	struct device *dev = graph_priv_to_dev(priv);
+	struct snd_soc_dai_link *dai_link = graph_priv_to_link(priv, idx);
+	struct graph_dai_props *dai_props = graph_priv_to_props(priv, idx);
+	struct asoc_simple_dai *cpu_dai = &dai_props->cpu_dai;
+	struct asoc_simple_dai *codec_dai = &dai_props->codec_dai;
+	struct device_node *cpu_ep    = of_get_next_child(cpu_port, NULL);
+	struct device_node *codec_ep = of_graph_get_remote_endpoint(cpu_ep);
+	struct device_node *rcpu_ep = of_graph_get_remote_endpoint(codec_ep);
+	int ret;
+
+	if (rcpu_ep != cpu_ep) {
+		dev_err(dev, "remote-endpoint mismatch (%s/%s/%s)\n",
+			cpu_ep->name, codec_ep->name, rcpu_ep->name);
+		ret = -EINVAL;
+		goto dai_link_of_err;
+	}
+
+	ret = asoc_simple_card_parse_daifmt(dev, cpu_ep, codec_ep,
+					    NULL, &dai_link->dai_fmt);
+	if (ret < 0)
+		goto dai_link_of_err;
+
+	of_property_read_u32(rcpu_ep, "mclk-fs", &dai_props->mclk_fs);
+
+	ret = asoc_simple_card_parse_graph_cpu(cpu_ep, dai_link);
+	if (ret < 0)
+		goto dai_link_of_err;
+
+	ret = asoc_simple_card_parse_graph_codec(codec_ep, dai_link);
+	if (ret < 0)
+		goto dai_link_of_err;
+
+	ret = asoc_simple_card_of_parse_tdm(cpu_ep, cpu_dai);
+	if (ret < 0)
+		goto dai_link_of_err;
+
+	ret = asoc_simple_card_of_parse_tdm(codec_ep, codec_dai);
+	if (ret < 0)
+		goto dai_link_of_err;
+
+	ret = asoc_simple_card_parse_clk_cpu(dev, cpu_ep, dai_link, cpu_dai);
+	if (ret < 0)
+		goto dai_link_of_err;
+
+	ret = asoc_simple_card_parse_clk_codec(dev, codec_ep, dai_link, codec_dai);
+	if (ret < 0)
+		goto dai_link_of_err;
+
+	ret = asoc_simple_card_canonicalize_dailink(dai_link);
+	if (ret < 0)
+		goto dai_link_of_err;
+
+	ret = asoc_simple_card_set_dailink_name(dev, dai_link,
+						"%s-%s",
+						dai_link->cpu_dai_name,
+						dai_link->codec_dai_name);
+	if (ret < 0)
+		goto dai_link_of_err;
+
+	dai_link->ops = &asoc_graph_card_ops;
+	dai_link->init = asoc_graph_card_dai_init;
+
+	asoc_simple_card_canonicalize_cpu(dai_link,
+		of_graph_get_endpoint_count(dai_link->cpu_of_node) == 1);
+
+dai_link_of_err:
+	of_node_put(cpu_ep);
+	of_node_put(rcpu_ep);
+	of_node_put(codec_ep);
+
+	return ret;
+}
+
+static int asoc_graph_card_parse_of(struct graph_card_data *priv)
+{
+	struct of_phandle_iterator it;
+	struct device *dev = graph_priv_to_dev(priv);
+	struct snd_soc_card *card = graph_priv_to_card(priv);
+	struct device_node *node = dev->of_node;
+	int rc, idx = 0;
+	int ret;
+
+	ret = asoc_simple_card_of_parse_widgets(card, NULL);
+	if (ret < 0)
+		return ret;
+
+	ret = asoc_simple_card_of_parse_routing(card, NULL, 1);
+	if (ret < 0)
+		return ret;
+
+	/* Factor to mclk, used in hw_params() */
+	of_property_read_u32(node, "mclk-fs", &priv->mclk_fs);
+
+	of_for_each_phandle(&it, rc, node, "dais", NULL, 0) {
+		ret = asoc_graph_card_dai_link_of(it.node, priv, idx++);
+		if (ret < 0) {
+			of_node_put(it.node);
+
+			return ret;
+		}
+	}
+
+	return asoc_simple_card_parse_card_name(card, NULL);
+}
+
+static int asoc_graph_get_dais_count(struct device *dev)
+{
+	struct of_phandle_iterator it;
+	struct device_node *node = dev->of_node;
+	int count = 0;
+	int rc;
+
+	of_for_each_phandle(&it, rc, node, "dais", NULL, 0)
+		count++;
+
+	return count;
+}
+
+static int asoc_graph_soc_card_probe(struct snd_soc_card *card)
+{
+	struct graph_card_data *priv = snd_soc_card_get_drvdata(card);
+	int ret;
+
+	ret = asoc_simple_card_init_hp(card, &priv->hp_jack, NULL);
+	if (ret < 0)
+		return ret;
+
+	ret = asoc_simple_card_init_mic(card, &priv->mic_jack, NULL);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
+static int asoc_graph_card_probe(struct platform_device *pdev)
+{
+	struct graph_card_data *priv;
+	struct snd_soc_dai_link *dai_link;
+	struct graph_dai_props *dai_props;
+	struct device *dev = &pdev->dev;
+	struct snd_soc_card *card;
+	int num, ret;
+
+	/* Allocate the private data and the DAI link array */
+	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	num = asoc_graph_get_dais_count(dev);
+	if (num == 0)
+		return -EINVAL;
+
+	dai_props = devm_kcalloc(dev, num, sizeof(*dai_props), GFP_KERNEL);
+	dai_link  = devm_kcalloc(dev, num, sizeof(*dai_link), GFP_KERNEL);
+	if (!dai_props || !dai_link)
+		return -ENOMEM;
+
+	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;
+	}
+
+	priv->dai_props			= dai_props;
+	priv->dai_link			= dai_link;
+
+	/* Init snd_soc_card */
+	card = graph_priv_to_card(priv);
+	card->owner	= THIS_MODULE;
+	card->dev	= dev;
+	card->dai_link	= dai_link;
+	card->num_links	= num;
+	card->dapm_widgets = asoc_graph_card_dapm_widgets;
+	card->num_dapm_widgets = ARRAY_SIZE(asoc_graph_card_dapm_widgets);
+	card->probe	= asoc_graph_soc_card_probe;
+
+	ret = asoc_graph_card_parse_of(priv);
+	if (ret < 0) {
+		if (ret != -EPROBE_DEFER)
+			dev_err(dev, "parse error %d\n", ret);
+		goto err;
+	}
+
+	snd_soc_card_set_drvdata(card, priv);
+
+	ret = devm_snd_soc_register_card(dev, card);
+	if (ret < 0)
+		goto err;
+
+	return 0;
+err:
+	asoc_simple_card_clean_reference(card);
+
+	return ret;
+}
+
+static int asoc_graph_card_remove(struct platform_device *pdev)
+{
+	struct snd_soc_card *card = platform_get_drvdata(pdev);
+
+	return asoc_simple_card_clean_reference(card);
+}
+
+static const struct of_device_id asoc_graph_of_match[] = {
+	{ .compatible = "audio-graph-card", },
+	{},
+};
+MODULE_DEVICE_TABLE(of, asoc_graph_of_match);
+
+static struct platform_driver asoc_graph_card = {
+	.driver = {
+		.name = "asoc-audio-graph-card",
+		.pm = &snd_soc_pm_ops,
+		.of_match_table = asoc_graph_of_match,
+	},
+	.probe = asoc_graph_card_probe,
+	.remove = asoc_graph_card_remove,
+};
+module_platform_driver(asoc_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-scu-card.c b/sound/soc/generic/audio-graph-scu-card.c
new file mode 100644
index 000000000..92882e392
--- /dev/null
+++ b/sound/soc/generic/audio-graph-scu-card.c
@@ -0,0 +1,412 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// ASoC audio graph SCU sound card support
+//
+// Copyright (C) 2017 Renesas Solutions Corp.
+// Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
+//
+// based on
+//	${LINUX}/sound/soc/generic/simple-scu-card.c
+//	${LINUX}/sound/soc/generic/audio-graph-card.c
+
+#include <linux/clk.h>
+#include <linux/device.h>
+#include <linux/gpio.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/jack.h>
+#include <sound/simple_card_utils.h>
+
+struct graph_card_data {
+	struct snd_soc_card snd_card;
+	struct snd_soc_codec_conf codec_conf;
+	struct asoc_simple_dai *dai_props;
+	struct snd_soc_dai_link *dai_link;
+	struct asoc_simple_card_data adata;
+};
+
+#define graph_priv_to_card(priv) (&(priv)->snd_card)
+#define graph_priv_to_props(priv, i) ((priv)->dai_props + (i))
+#define graph_priv_to_dev(priv) (graph_priv_to_card(priv)->dev)
+#define graph_priv_to_link(priv, i) (graph_priv_to_card(priv)->dai_link + (i))
+
+static int asoc_graph_card_startup(struct snd_pcm_substream *substream)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct graph_card_data *priv = snd_soc_card_get_drvdata(rtd->card);
+	struct asoc_simple_dai *dai_props = graph_priv_to_props(priv, rtd->num);
+
+	return asoc_simple_card_clk_enable(dai_props);
+}
+
+static void asoc_graph_card_shutdown(struct snd_pcm_substream *substream)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct graph_card_data *priv = snd_soc_card_get_drvdata(rtd->card);
+	struct asoc_simple_dai *dai_props = graph_priv_to_props(priv, rtd->num);
+
+	asoc_simple_card_clk_disable(dai_props);
+}
+
+static const struct snd_soc_ops asoc_graph_card_ops = {
+	.startup = asoc_graph_card_startup,
+	.shutdown = asoc_graph_card_shutdown,
+};
+
+static int asoc_graph_card_dai_init(struct snd_soc_pcm_runtime *rtd)
+{
+	struct graph_card_data *priv =	snd_soc_card_get_drvdata(rtd->card);
+	struct snd_soc_dai *dai;
+	struct snd_soc_dai_link *dai_link;
+	struct asoc_simple_dai *dai_props;
+	int num = rtd->num;
+
+	dai_link	= graph_priv_to_link(priv, num);
+	dai_props	= graph_priv_to_props(priv, num);
+	dai		= dai_link->dynamic ?
+				rtd->cpu_dai :
+				rtd->codec_dai;
+
+	return asoc_simple_card_init_dai(dai, dai_props);
+}
+
+static int asoc_graph_card_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
+					       struct snd_pcm_hw_params *params)
+{
+	struct graph_card_data *priv = snd_soc_card_get_drvdata(rtd->card);
+
+	asoc_simple_card_convert_fixup(&priv->adata, params);
+
+	return 0;
+}
+
+static int asoc_graph_card_dai_link_of(struct device_node *ep,
+				       struct graph_card_data *priv,
+				       unsigned int daifmt,
+				       int idx, int is_fe)
+{
+	struct device *dev = graph_priv_to_dev(priv);
+	struct snd_soc_dai_link *dai_link = graph_priv_to_link(priv, idx);
+	struct asoc_simple_dai *dai_props = graph_priv_to_props(priv, idx);
+	struct snd_soc_card *card = graph_priv_to_card(priv);
+	int ret;
+
+	if (is_fe) {
+		/* BE is dummy */
+		dai_link->codec_of_node		= NULL;
+		dai_link->codec_dai_name	= "snd-soc-dummy-dai";
+		dai_link->codec_name		= "snd-soc-dummy";
+
+		/* FE settings */
+		dai_link->dynamic		= 1;
+		dai_link->dpcm_merged_format	= 1;
+
+		ret = asoc_simple_card_parse_graph_cpu(ep, dai_link);
+		if (ret)
+			return ret;
+
+		ret = asoc_simple_card_parse_clk_cpu(dev, ep, dai_link, dai_props);
+		if (ret < 0)
+			return ret;
+
+		ret = asoc_simple_card_set_dailink_name(dev, dai_link,
+							"fe.%s",
+							dai_link->cpu_dai_name);
+		if (ret < 0)
+			return ret;
+
+		/* card->num_links includes Codec */
+		asoc_simple_card_canonicalize_cpu(dai_link,
+			of_graph_get_endpoint_count(dai_link->cpu_of_node) == 1);
+	} else {
+		/* FE is dummy */
+		dai_link->cpu_of_node		= NULL;
+		dai_link->cpu_dai_name		= "snd-soc-dummy-dai";
+		dai_link->cpu_name		= "snd-soc-dummy";
+
+		/* BE settings */
+		dai_link->no_pcm		= 1;
+		dai_link->be_hw_params_fixup	= asoc_graph_card_be_hw_params_fixup;
+
+		ret = asoc_simple_card_parse_graph_codec(ep, dai_link);
+		if (ret < 0)
+			return ret;
+
+		ret = asoc_simple_card_parse_clk_codec(dev, ep, dai_link, dai_props);
+		if (ret < 0)
+			return ret;
+
+		ret = asoc_simple_card_set_dailink_name(dev, dai_link,
+							"be.%s",
+							dai_link->codec_dai_name);
+		if (ret < 0)
+			return ret;
+
+		snd_soc_of_parse_audio_prefix(card,
+					      &priv->codec_conf,
+					      dai_link->codec_of_node,
+					      "prefix");
+	}
+
+	ret = asoc_simple_card_of_parse_tdm(ep, dai_props);
+	if (ret)
+		return ret;
+
+	ret = asoc_simple_card_canonicalize_dailink(dai_link);
+	if (ret < 0)
+		return ret;
+
+	dai_link->dai_fmt		= daifmt;
+	dai_link->dpcm_playback		= 1;
+	dai_link->dpcm_capture		= 1;
+	dai_link->ops			= &asoc_graph_card_ops;
+	dai_link->init			= asoc_graph_card_dai_init;
+
+	return 0;
+}
+
+static int asoc_graph_card_parse_of(struct graph_card_data *priv)
+{
+	struct of_phandle_iterator it;
+	struct device *dev = graph_priv_to_dev(priv);
+	struct snd_soc_card *card = graph_priv_to_card(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 *rcpu_ep;
+	struct device_node *codec_port;
+	struct device_node *codec_port_old;
+	unsigned int daifmt = 0;
+	int dai_idx, ret;
+	int rc, codec;
+
+	if (!node)
+		return -EINVAL;
+
+	/*
+	 * we need to consider "widgets", "mclk-fs" around here
+	 * see simple-card
+	 */
+
+	ret = asoc_simple_card_of_parse_routing(card, NULL, 0);
+	if (ret < 0)
+		return ret;
+
+	asoc_simple_card_parse_convert(dev, NULL, &priv->adata);
+
+	/*
+	 * it supports multi CPU, single CODEC only here
+	 * see asoc_graph_get_dais_count
+	 */
+
+	/* find 1st codec */
+	of_for_each_phandle(&it, rc, node, "dais", NULL, 0) {
+		cpu_port = it.node;
+		cpu_ep   = of_get_next_child(cpu_port, NULL);
+		codec_ep = of_graph_get_remote_endpoint(cpu_ep);
+		rcpu_ep  = of_graph_get_remote_endpoint(codec_ep);
+
+		of_node_put(cpu_ep);
+		of_node_put(codec_ep);
+		of_node_put(rcpu_ep);
+
+		if (!codec_ep)
+			continue;
+
+		if (rcpu_ep != cpu_ep) {
+			dev_err(dev, "remote-endpoint missmatch (%s/%s/%s)\n",
+				cpu_ep->name, codec_ep->name, rcpu_ep->name);
+			ret = -EINVAL;
+			goto parse_of_err;
+		}
+
+		ret = asoc_simple_card_parse_daifmt(dev, cpu_ep, codec_ep,
+							    NULL, &daifmt);
+		if (ret < 0) {
+			of_node_put(cpu_port);
+			goto parse_of_err;
+		}
+	}
+
+	dai_idx = 0;
+	codec_port_old = NULL;
+	for (codec = 0; codec < 2; codec++) {
+		/*
+		 * To listup valid sounds continuously,
+		 * detect all CPU-dummy first, and
+		 * detect all dummy-Codec second
+		 */
+		of_for_each_phandle(&it, rc, node, "dais", NULL, 0) {
+			cpu_port = it.node;
+			cpu_ep   = of_get_next_child(cpu_port, NULL);
+			codec_ep = of_graph_get_remote_endpoint(cpu_ep);
+			codec_port = of_graph_get_port_parent(codec_ep);
+
+			of_node_put(cpu_ep);
+			of_node_put(codec_ep);
+			of_node_put(codec_port);
+
+			if (codec) {
+				if (!codec_port)
+					continue;
+
+				if (codec_port_old == codec_port)
+					continue;
+
+				codec_port_old = codec_port;
+
+				/* Back-End (= Codec) */
+				ret = asoc_graph_card_dai_link_of(codec_ep, priv, daifmt, dai_idx++, 0);
+				if (ret < 0) {
+					of_node_put(cpu_port);
+					goto parse_of_err;
+				}
+			} else {
+				/* Front-End (= CPU) */
+				ret = asoc_graph_card_dai_link_of(cpu_ep, priv, daifmt, dai_idx++, 1);
+				if (ret < 0) {
+					of_node_put(cpu_port);
+					goto parse_of_err;
+				}
+			}
+		}
+	}
+
+	ret = asoc_simple_card_parse_card_name(card, NULL);
+	if (ret)
+		goto parse_of_err;
+
+	ret = 0;
+
+parse_of_err:
+	return ret;
+}
+
+static int asoc_graph_get_dais_count(struct device *dev)
+{
+	struct of_phandle_iterator it;
+	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;
+	int count = 0;
+	int rc;
+
+	codec_port_old = NULL;
+	of_for_each_phandle(&it, rc, node, "dais", NULL, 0) {
+		cpu_port = it.node;
+		cpu_ep   = of_get_next_child(cpu_port, NULL);
+		codec_ep = of_graph_get_remote_endpoint(cpu_ep);
+		codec_port = of_graph_get_port_parent(codec_ep);
+
+		of_node_put(cpu_ep);
+		of_node_put(codec_ep);
+		of_node_put(codec_port);
+
+		if (cpu_ep)
+			count++;
+
+		if (!codec_port)
+			continue;
+
+		if (codec_port_old == codec_port)
+			continue;
+
+		count++;
+		codec_port_old = codec_port;
+	}
+
+	return count;
+}
+
+static int asoc_graph_card_probe(struct platform_device *pdev)
+{
+	struct graph_card_data *priv;
+	struct snd_soc_dai_link *dai_link;
+	struct asoc_simple_dai *dai_props;
+	struct device *dev = &pdev->dev;
+	struct snd_soc_card *card;
+	int num, ret;
+
+	/* Allocate the private data and the DAI link array */
+	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	num = asoc_graph_get_dais_count(dev);
+	if (num == 0)
+		return -EINVAL;
+
+	dai_props = devm_kcalloc(dev, num, sizeof(*dai_props), GFP_KERNEL);
+	dai_link  = devm_kcalloc(dev, num, sizeof(*dai_link), GFP_KERNEL);
+	if (!dai_props || !dai_link)
+		return -ENOMEM;
+
+	priv->dai_props			= dai_props;
+	priv->dai_link			= dai_link;
+
+	/* Init snd_soc_card */
+	card = graph_priv_to_card(priv);
+	card->owner		= THIS_MODULE;
+	card->dev		= dev;
+	card->dai_link		= priv->dai_link;
+	card->num_links		= num;
+	card->codec_conf	= &priv->codec_conf;
+	card->num_configs	= 1;
+
+	ret = asoc_graph_card_parse_of(priv);
+	if (ret < 0) {
+		if (ret != -EPROBE_DEFER)
+			dev_err(dev, "parse error %d\n", ret);
+		goto err;
+	}
+
+	snd_soc_card_set_drvdata(card, priv);
+
+	ret = devm_snd_soc_register_card(dev, card);
+	if (ret < 0)
+		goto err;
+
+	return 0;
+err:
+	asoc_simple_card_clean_reference(card);
+
+	return ret;
+}
+
+static int asoc_graph_card_remove(struct platform_device *pdev)
+{
+	struct snd_soc_card *card = platform_get_drvdata(pdev);
+
+	return asoc_simple_card_clean_reference(card);
+}
+
+static const struct of_device_id asoc_graph_of_match[] = {
+	{ .compatible = "audio-graph-scu-card", },
+	{},
+};
+MODULE_DEVICE_TABLE(of, asoc_graph_of_match);
+
+static struct platform_driver asoc_graph_card = {
+	.driver = {
+		.name = "asoc-audio-graph-scu-card",
+		.pm = &snd_soc_pm_ops,
+		.of_match_table = asoc_graph_of_match,
+	},
+	.probe = asoc_graph_card_probe,
+	.remove = asoc_graph_card_remove,
+};
+module_platform_driver(asoc_graph_card);
+
+MODULE_ALIAS("platform:asoc-audio-graph-scu-card");
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("ASoC Audio Graph SCU Sound Card");
+MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");
diff --git a/sound/soc/generic/simple-card-utils.c b/sound/soc/generic/simple-card-utils.c
new file mode 100644
index 000000000..d3f3f0fec
--- /dev/null
+++ b/sound/soc/generic/simple-card-utils.c
@@ -0,0 +1,481 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// simple-card-utils.c
+//
+// Copyright (c) 2016 Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
+
+#include <linux/clk.h>
+#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_gpio.h>
+#include <linux/of_graph.h>
+#include <sound/jack.h>
+#include <sound/simple_card_utils.h>
+
+void asoc_simple_card_convert_fixup(struct asoc_simple_card_data *data,
+				    struct snd_pcm_hw_params *params)
+{
+	struct snd_interval *rate = hw_param_interval(params,
+						SNDRV_PCM_HW_PARAM_RATE);
+	struct snd_interval *channels = hw_param_interval(params,
+						SNDRV_PCM_HW_PARAM_CHANNELS);
+
+	if (data->convert_rate)
+		rate->min =
+		rate->max = data->convert_rate;
+
+	if (data->convert_channels)
+		channels->min =
+		channels->max = data->convert_channels;
+}
+EXPORT_SYMBOL_GPL(asoc_simple_card_convert_fixup);
+
+void asoc_simple_card_parse_convert(struct device *dev, char *prefix,
+				    struct asoc_simple_card_data *data)
+{
+	struct device_node *np = dev->of_node;
+	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);
+
+	dev_dbg(dev, "convert_rate     %d\n", data->convert_rate);
+	dev_dbg(dev, "convert_channels %d\n", data->convert_channels);
+}
+EXPORT_SYMBOL_GPL(asoc_simple_card_parse_convert);
+
+int asoc_simple_card_parse_daifmt(struct device *dev,
+				  struct device_node *node,
+				  struct device_node *codec,
+				  char *prefix,
+				  unsigned int *retfmt)
+{
+	struct device_node *bitclkmaster = NULL;
+	struct device_node *framemaster = NULL;
+	unsigned int daifmt;
+
+	daifmt = snd_soc_of_parse_daifmt(node, prefix,
+					 &bitclkmaster, &framemaster);
+	daifmt &= ~SND_SOC_DAIFMT_MASTER_MASK;
+
+	if (!bitclkmaster && !framemaster) {
+		/*
+		 * No dai-link level and master setting was not found from
+		 * sound node level, revert back to legacy DT parsing and
+		 * take the settings from codec node.
+		 */
+		dev_dbg(dev, "Revert to legacy daifmt parsing\n");
+
+		daifmt = snd_soc_of_parse_daifmt(codec, NULL, NULL, NULL) |
+			(daifmt & ~SND_SOC_DAIFMT_CLOCK_MASK);
+	} else {
+		if (codec == bitclkmaster)
+			daifmt |= (codec == framemaster) ?
+				SND_SOC_DAIFMT_CBM_CFM : SND_SOC_DAIFMT_CBM_CFS;
+		else
+			daifmt |= (codec == framemaster) ?
+				SND_SOC_DAIFMT_CBS_CFM : SND_SOC_DAIFMT_CBS_CFS;
+	}
+
+	of_node_put(bitclkmaster);
+	of_node_put(framemaster);
+
+	*retfmt = daifmt;
+
+	dev_dbg(dev, "format : %04x\n", daifmt);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(asoc_simple_card_parse_daifmt);
+
+int asoc_simple_card_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;
+
+		dev_dbg(dev, "name : %s\n", name);
+	}
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(asoc_simple_card_set_dailink_name);
+
+int asoc_simple_card_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;
+
+	dev_dbg(card->dev, "Card Name: %s\n", card->name ? card->name : "");
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(asoc_simple_card_parse_card_name);
+
+static void asoc_simple_card_clk_register(struct asoc_simple_dai *dai,
+					  struct clk *clk)
+{
+	dai->clk = clk;
+}
+
+int asoc_simple_card_clk_enable(struct asoc_simple_dai *dai)
+{
+	return clk_prepare_enable(dai->clk);
+}
+EXPORT_SYMBOL_GPL(asoc_simple_card_clk_enable);
+
+void asoc_simple_card_clk_disable(struct asoc_simple_dai *dai)
+{
+	clk_disable_unprepare(dai->clk);
+}
+EXPORT_SYMBOL_GPL(asoc_simple_card_clk_disable);
+
+int asoc_simple_card_parse_clk(struct device *dev,
+			       struct device_node *node,
+			       struct device_node *dai_of_node,
+			       struct asoc_simple_dai *simple_dai,
+			       const char *name)
+{
+	struct clk *clk;
+	u32 val;
+
+	/*
+	 * Parse dai->sysclk come from "clocks = <&xxx>"
+	 * (if system has common clock)
+	 *  or "system-clock-frequency = <xxx>"
+	 *  or device's module clock.
+	 */
+	clk = devm_get_clk_from_child(dev, node, NULL);
+	if (!IS_ERR(clk)) {
+		simple_dai->sysclk = clk_get_rate(clk);
+
+		asoc_simple_card_clk_register(simple_dai, clk);
+	} else if (!of_property_read_u32(node, "system-clock-frequency", &val)) {
+		simple_dai->sysclk = val;
+	} else {
+		clk = devm_get_clk_from_child(dev, dai_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;
+
+	dev_dbg(dev, "%s : sysclk = %d, direction %d\n", name,
+		simple_dai->sysclk, simple_dai->clk_direction);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(asoc_simple_card_parse_clk);
+
+int asoc_simple_card_parse_dai(struct device_node *node,
+				    struct device_node **dai_of_node,
+				    const char **dai_name,
+				    const char *list_name,
+				    const char *cells_name,
+				    int *is_single_link)
+{
+	struct of_phandle_args args;
+	int ret;
+
+	if (!node)
+		return 0;
+
+	/*
+	 * Get node via "sound-dai = <&phandle port>"
+	 * it will be used as xxx_of_node on soc_bind_dai_link()
+	 */
+	ret = of_parse_phandle_with_args(node, list_name, cells_name, 0, &args);
+	if (ret)
+		return ret;
+
+	/* Get dai->name */
+	if (dai_name) {
+		ret = snd_soc_of_get_dai_name(node, dai_name);
+		if (ret < 0)
+			return ret;
+	}
+
+	*dai_of_node = args.np;
+
+	if (is_single_link)
+		*is_single_link = !args.args_count;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(asoc_simple_card_parse_dai);
+
+static int asoc_simple_card_get_dai_id(struct device_node *ep)
+{
+	struct device_node *node;
+	struct device_node *endpoint;
+	int i, id;
+	int ret;
+
+	ret = snd_soc_get_dai_id(ep);
+	if (ret != -ENOTSUPP)
+		return ret;
+
+	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_simple_card_parse_graph_dai(struct device_node *ep,
+				     struct device_node **dai_of_node,
+				     const char **dai_name)
+{
+	struct device_node *node;
+	struct of_phandle_args args;
+	int ret;
+
+	if (!ep)
+		return 0;
+	if (!dai_name)
+		return 0;
+
+	node = of_graph_get_port_parent(ep);
+
+	/* Get dai->name */
+	args.np		= node;
+	args.args[0]	= asoc_simple_card_get_dai_id(ep);
+	args.args_count	= (of_graph_get_endpoint_count(node) > 1);
+
+	ret = snd_soc_get_dai_name(&args, dai_name);
+	if (ret < 0)
+		return ret;
+
+	*dai_of_node = node;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(asoc_simple_card_parse_graph_dai);
+
+int asoc_simple_card_init_dai(struct snd_soc_dai *dai,
+			      struct asoc_simple_dai *simple_dai)
+{
+	int ret;
+
+	if (simple_dai->sysclk) {
+		ret = snd_soc_dai_set_sysclk(dai, 0, simple_dai->sysclk,
+					     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;
+}
+EXPORT_SYMBOL_GPL(asoc_simple_card_init_dai);
+
+int asoc_simple_card_canonicalize_dailink(struct snd_soc_dai_link *dai_link)
+{
+	/* Assumes platform == cpu */
+	if (!dai_link->platform_of_node)
+		dai_link->platform_of_node = dai_link->cpu_of_node;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(asoc_simple_card_canonicalize_dailink);
+
+void asoc_simple_card_canonicalize_cpu(struct snd_soc_dai_link *dai_link,
+				       int is_single_links)
+{
+	/*
+	 * In soc_bind_dai_link() will check cpu name after
+	 * of_node matching if dai_link has cpu_dai_name.
+	 * but, it will never match if name was created by
+	 * fmt_single_name() remove cpu_dai_name if cpu_args
+	 * was 0. See:
+	 *	fmt_single_name()
+	 *	fmt_multiple_name()
+	 */
+	if (is_single_links)
+		dai_link->cpu_dai_name = NULL;
+}
+EXPORT_SYMBOL_GPL(asoc_simple_card_canonicalize_cpu);
+
+int asoc_simple_card_clean_reference(struct snd_soc_card *card)
+{
+	struct snd_soc_dai_link *dai_link;
+	int num_links;
+
+	for (num_links = 0, dai_link = card->dai_link;
+	     num_links < card->num_links;
+	     num_links++, dai_link++) {
+		of_node_put(dai_link->cpu_of_node);
+		of_node_put(dai_link->codec_of_node);
+	}
+	return 0;
+}
+EXPORT_SYMBOL_GPL(asoc_simple_card_clean_reference);
+
+int asoc_simple_card_of_parse_routing(struct snd_soc_card *card,
+				      char *prefix,
+				      int optional)
+{
+	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)) {
+		if (optional)
+			return 0;
+		return -EINVAL;
+	}
+
+	return snd_soc_of_parse_audio_routing(card, prop);
+}
+EXPORT_SYMBOL_GPL(asoc_simple_card_of_parse_routing);
+
+int asoc_simple_card_of_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_card_of_parse_widgets);
+
+int asoc_simple_card_init_jack(struct snd_soc_card *card,
+			       struct asoc_simple_jack *sjack,
+			       int is_hp, char *prefix)
+{
+	struct device *dev = card->dev;
+	enum of_gpio_flags flags;
+	char prop[128];
+	char *pin_name;
+	char *gpio_name;
+	int mask;
+	int det;
+
+	if (!prefix)
+		prefix = "";
+
+	sjack->gpio.gpio = -ENOENT;
+
+	if (is_hp) {
+		snprintf(prop, sizeof(prop), "%shp-det-gpio", prefix);
+		pin_name	= "Headphones";
+		gpio_name	= "Headphone detection";
+		mask		= SND_JACK_HEADPHONE;
+	} else {
+		snprintf(prop, sizeof(prop), "%smic-det-gpio", prefix);
+		pin_name	= "Mic Jack";
+		gpio_name	= "Mic detection";
+		mask		= SND_JACK_MICROPHONE;
+	}
+
+	det = of_get_named_gpio_flags(dev->of_node, prop, 0, &flags);
+	if (det == -EPROBE_DEFER)
+		return -EPROBE_DEFER;
+
+	if (gpio_is_valid(det)) {
+		sjack->pin.pin		= pin_name;
+		sjack->pin.mask		= mask;
+
+		sjack->gpio.name	= gpio_name;
+		sjack->gpio.report	= mask;
+		sjack->gpio.gpio	= det;
+		sjack->gpio.invert	= !!(flags & OF_GPIO_ACTIVE_LOW);
+		sjack->gpio.debounce_time = 150;
+
+		snd_soc_card_jack_new(card, pin_name, mask,
+				      &sjack->jack,
+				      &sjack->pin, 1);
+
+		snd_soc_jack_add_gpios(&sjack->jack, 1,
+				       &sjack->gpio);
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(asoc_simple_card_init_jack);
+
+/* 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..64bf3560c
--- /dev/null
+++ b/sound/soc/generic/simple-card.c
@@ -0,0 +1,478 @@
+// 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/platform_device.h>
+#include <linux/string.h>
+#include <sound/simple_card.h>
+#include <sound/soc-dai.h>
+#include <sound/soc.h>
+
+struct simple_card_data {
+	struct snd_soc_card snd_card;
+	struct simple_dai_props {
+		struct asoc_simple_dai cpu_dai;
+		struct asoc_simple_dai codec_dai;
+		unsigned int mclk_fs;
+	} *dai_props;
+	unsigned int mclk_fs;
+	struct asoc_simple_jack hp_jack;
+	struct asoc_simple_jack mic_jack;
+	struct snd_soc_dai_link *dai_link;
+};
+
+#define simple_priv_to_card(priv) (&(priv)->snd_card)
+#define simple_priv_to_props(priv, i) ((priv)->dai_props + (i))
+#define simple_priv_to_dev(priv) (simple_priv_to_card(priv)->dev)
+#define simple_priv_to_link(priv, i) (simple_priv_to_card(priv)->dai_link + (i))
+
+#define DAI	"sound-dai"
+#define CELL	"#sound-dai-cells"
+#define PREFIX	"simple-audio-card,"
+
+static int asoc_simple_card_startup(struct snd_pcm_substream *substream)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct simple_card_data *priv =	snd_soc_card_get_drvdata(rtd->card);
+	struct simple_dai_props *dai_props =
+		simple_priv_to_props(priv, rtd->num);
+	int ret;
+
+	ret = asoc_simple_card_clk_enable(&dai_props->cpu_dai);
+	if (ret)
+		return ret;
+
+	ret = asoc_simple_card_clk_enable(&dai_props->codec_dai);
+	if (ret)
+		asoc_simple_card_clk_disable(&dai_props->cpu_dai);
+
+	return ret;
+}
+
+static void asoc_simple_card_shutdown(struct snd_pcm_substream *substream)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct simple_card_data *priv =	snd_soc_card_get_drvdata(rtd->card);
+	struct simple_dai_props *dai_props =
+		simple_priv_to_props(priv, rtd->num);
+
+	asoc_simple_card_clk_disable(&dai_props->cpu_dai);
+
+	asoc_simple_card_clk_disable(&dai_props->codec_dai);
+}
+
+static int asoc_simple_set_clk_rate(struct asoc_simple_dai *simple_dai,
+				    unsigned long rate)
+{
+	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_card_hw_params(struct snd_pcm_substream *substream,
+				      struct snd_pcm_hw_params *params)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct snd_soc_dai *codec_dai = rtd->codec_dai;
+	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
+	struct simple_card_data *priv = snd_soc_card_get_drvdata(rtd->card);
+	struct simple_dai_props *dai_props =
+		simple_priv_to_props(priv, rtd->num);
+	unsigned int mclk, mclk_fs = 0;
+	int ret = 0;
+
+	if (priv->mclk_fs)
+		mclk_fs = priv->mclk_fs;
+	else if (dai_props->mclk_fs)
+		mclk_fs = dai_props->mclk_fs;
+
+	if (mclk_fs) {
+		mclk = params_rate(params) * mclk_fs;
+
+		ret = asoc_simple_set_clk_rate(&dai_props->codec_dai, mclk);
+		if (ret < 0)
+			return ret;
+
+		ret = asoc_simple_set_clk_rate(&dai_props->cpu_dai, mclk);
+		if (ret < 0)
+			return ret;
+
+		ret = snd_soc_dai_set_sysclk(codec_dai, 0, mclk,
+					     SND_SOC_CLOCK_IN);
+		if (ret && ret != -ENOTSUPP)
+			goto err;
+
+		ret = snd_soc_dai_set_sysclk(cpu_dai, 0, mclk,
+					     SND_SOC_CLOCK_OUT);
+		if (ret && ret != -ENOTSUPP)
+			goto err;
+	}
+	return 0;
+err:
+	return ret;
+}
+
+static const struct snd_soc_ops asoc_simple_card_ops = {
+	.startup = asoc_simple_card_startup,
+	.shutdown = asoc_simple_card_shutdown,
+	.hw_params = asoc_simple_card_hw_params,
+};
+
+static int asoc_simple_card_dai_init(struct snd_soc_pcm_runtime *rtd)
+{
+	struct simple_card_data *priv =	snd_soc_card_get_drvdata(rtd->card);
+	struct snd_soc_dai *codec = rtd->codec_dai;
+	struct snd_soc_dai *cpu = rtd->cpu_dai;
+	struct simple_dai_props *dai_props =
+		simple_priv_to_props(priv, rtd->num);
+	int ret;
+
+	ret = asoc_simple_card_init_dai(codec, &dai_props->codec_dai);
+	if (ret < 0)
+		return ret;
+
+	ret = asoc_simple_card_init_dai(cpu, &dai_props->cpu_dai);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
+static int asoc_simple_card_dai_link_of(struct device_node *node,
+					struct simple_card_data *priv,
+					int idx,
+					bool is_top_level_node)
+{
+	struct device *dev = simple_priv_to_dev(priv);
+	struct snd_soc_dai_link *dai_link = simple_priv_to_link(priv, idx);
+	struct simple_dai_props *dai_props = simple_priv_to_props(priv, idx);
+	struct asoc_simple_dai *cpu_dai = &dai_props->cpu_dai;
+	struct asoc_simple_dai *codec_dai = &dai_props->codec_dai;
+	struct device_node *cpu = NULL;
+	struct device_node *plat = NULL;
+	struct device_node *codec = NULL;
+	char prop[128];
+	char *prefix = "";
+	int ret, single_cpu;
+
+	/* For single DAI link & old style of DT node */
+	if (is_top_level_node)
+		prefix = PREFIX;
+
+	snprintf(prop, sizeof(prop), "%scpu", prefix);
+	cpu = of_get_child_by_name(node, prop);
+
+	if (!cpu) {
+		ret = -EINVAL;
+		dev_err(dev, "%s: Can't find %s DT node\n", __func__, prop);
+		goto dai_link_of_err;
+	}
+
+	snprintf(prop, sizeof(prop), "%splat", prefix);
+	plat = of_get_child_by_name(node, prop);
+
+	snprintf(prop, sizeof(prop), "%scodec", prefix);
+	codec = of_get_child_by_name(node, prop);
+
+	if (!codec) {
+		ret = -EINVAL;
+		dev_err(dev, "%s: Can't find %s DT node\n", __func__, prop);
+		goto dai_link_of_err;
+	}
+
+	ret = asoc_simple_card_parse_daifmt(dev, node, codec,
+					    prefix, &dai_link->dai_fmt);
+	if (ret < 0)
+		goto dai_link_of_err;
+
+	of_property_read_u32(node, "mclk-fs", &dai_props->mclk_fs);
+
+	ret = asoc_simple_card_parse_cpu(cpu, dai_link,
+					 DAI, CELL, &single_cpu);
+	if (ret < 0)
+		goto dai_link_of_err;
+
+	ret = asoc_simple_card_parse_codec(codec, dai_link, DAI, CELL);
+	if (ret < 0)
+		goto dai_link_of_err;
+
+	ret = asoc_simple_card_parse_platform(plat, dai_link, DAI, CELL);
+	if (ret < 0)
+		goto dai_link_of_err;
+
+	ret = asoc_simple_card_of_parse_tdm(cpu, cpu_dai);
+	if (ret < 0)
+		goto dai_link_of_err;
+
+	ret = asoc_simple_card_of_parse_tdm(codec, codec_dai);
+	if (ret < 0)
+		goto dai_link_of_err;
+
+	ret = asoc_simple_card_parse_clk_cpu(dev, cpu, dai_link, cpu_dai);
+	if (ret < 0)
+		goto dai_link_of_err;
+
+	ret = asoc_simple_card_parse_clk_codec(dev, codec, dai_link, codec_dai);
+	if (ret < 0)
+		goto dai_link_of_err;
+
+	ret = asoc_simple_card_canonicalize_dailink(dai_link);
+	if (ret < 0)
+		goto dai_link_of_err;
+
+	ret = asoc_simple_card_set_dailink_name(dev, dai_link,
+						"%s-%s",
+						dai_link->cpu_dai_name,
+						dai_link->codec_dai_name);
+	if (ret < 0)
+		goto dai_link_of_err;
+
+	dai_link->ops = &asoc_simple_card_ops;
+	dai_link->init = asoc_simple_card_dai_init;
+
+	asoc_simple_card_canonicalize_cpu(dai_link, single_cpu);
+
+dai_link_of_err:
+	of_node_put(cpu);
+	of_node_put(codec);
+
+	return ret;
+}
+
+static int asoc_simple_card_parse_aux_devs(struct device_node *node,
+					   struct simple_card_data *priv)
+{
+	struct device *dev = simple_priv_to_dev(priv);
+	struct device_node *aux_node;
+	struct snd_soc_card *card = simple_priv_to_card(priv);
+	int i, n, len;
+
+	if (!of_find_property(node, PREFIX "aux-devs", &len))
+		return 0;		/* Ok to have no aux-devs */
+
+	n = len / sizeof(__be32);
+	if (n <= 0)
+		return -EINVAL;
+
+	card->aux_dev = devm_kcalloc(dev,
+			n, sizeof(*card->aux_dev), GFP_KERNEL);
+	if (!card->aux_dev)
+		return -ENOMEM;
+
+	for (i = 0; i < n; i++) {
+		aux_node = of_parse_phandle(node, PREFIX "aux-devs", i);
+		if (!aux_node)
+			return -EINVAL;
+		card->aux_dev[i].codec_of_node = aux_node;
+	}
+
+	card->num_aux_devs = n;
+	return 0;
+}
+
+static int asoc_simple_card_parse_of(struct simple_card_data *priv)
+{
+	struct device *dev = simple_priv_to_dev(priv);
+	struct snd_soc_card *card = simple_priv_to_card(priv);
+	struct device_node *dai_link;
+	struct device_node *node = dev->of_node;
+	int ret;
+
+	if (!node)
+		return -EINVAL;
+
+	dai_link = of_get_child_by_name(node, PREFIX "dai-link");
+
+	ret = asoc_simple_card_of_parse_widgets(card, PREFIX);
+	if (ret < 0)
+		goto card_parse_end;
+
+	ret = asoc_simple_card_of_parse_routing(card, PREFIX, 1);
+	if (ret < 0)
+		goto card_parse_end;
+
+	/* Factor to mclk, used in hw_params() */
+	of_property_read_u32(node, PREFIX "mclk-fs", &priv->mclk_fs);
+
+	/* Single/Muti DAI link(s) & New style of DT node */
+	if (dai_link) {
+		struct device_node *np = NULL;
+		int i = 0;
+
+		for_each_child_of_node(node, np) {
+			dev_dbg(dev, "\tlink %d:\n", i);
+			ret = asoc_simple_card_dai_link_of(np, priv,
+							   i, false);
+			if (ret < 0) {
+				of_node_put(np);
+				goto card_parse_end;
+			}
+			i++;
+		}
+	} else {
+		/* For single DAI link & old style of DT node */
+		ret = asoc_simple_card_dai_link_of(node, priv, 0, true);
+		if (ret < 0)
+			goto card_parse_end;
+	}
+
+	ret = asoc_simple_card_parse_card_name(card, PREFIX);
+	if (ret < 0)
+		goto card_parse_end;
+
+	ret = asoc_simple_card_parse_aux_devs(node, priv);
+
+card_parse_end:
+	of_node_put(dai_link);
+
+	return ret;
+}
+
+static int asoc_simple_soc_card_probe(struct snd_soc_card *card)
+{
+	struct simple_card_data *priv = snd_soc_card_get_drvdata(card);
+	int ret;
+
+	ret = asoc_simple_card_init_hp(card, &priv->hp_jack, PREFIX);
+	if (ret < 0)
+		return ret;
+
+	ret = asoc_simple_card_init_mic(card, &priv->mic_jack, PREFIX);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
+static int asoc_simple_card_probe(struct platform_device *pdev)
+{
+	struct simple_card_data *priv;
+	struct snd_soc_dai_link *dai_link;
+	struct simple_dai_props *dai_props;
+	struct device *dev = &pdev->dev;
+	struct device_node *np = dev->of_node;
+	struct snd_soc_card *card;
+	int num, ret;
+
+	/* Get the number of DAI links */
+	if (np && of_get_child_by_name(np, PREFIX "dai-link"))
+		num = of_get_child_count(np);
+	else
+		num = 1;
+
+	/* Allocate the private data and the DAI link array */
+	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	dai_props = devm_kcalloc(dev, num, sizeof(*dai_props), GFP_KERNEL);
+	dai_link  = devm_kcalloc(dev, num, sizeof(*dai_link), GFP_KERNEL);
+	if (!dai_props || !dai_link)
+		return -ENOMEM;
+
+	priv->dai_props			= dai_props;
+	priv->dai_link			= dai_link;
+
+	/* Init snd_soc_card */
+	card = simple_priv_to_card(priv);
+	card->owner		= THIS_MODULE;
+	card->dev		= dev;
+	card->dai_link		= priv->dai_link;
+	card->num_links		= num;
+	card->probe		= asoc_simple_soc_card_probe;
+
+	if (np && of_device_is_available(np)) {
+
+		ret = asoc_simple_card_parse_of(priv);
+		if (ret < 0) {
+			if (ret != -EPROBE_DEFER)
+				dev_err(dev, "parse error %d\n", ret);
+			goto err;
+		}
+
+	} else {
+		struct asoc_simple_card_info *cinfo;
+
+		cinfo = dev->platform_data;
+		if (!cinfo) {
+			dev_err(dev, "no info for asoc-simple-card\n");
+			return -EINVAL;
+		}
+
+		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");
+			return -EINVAL;
+		}
+
+		card->name		= (cinfo->card) ? cinfo->card : cinfo->name;
+		dai_link->name		= cinfo->name;
+		dai_link->stream_name	= cinfo->name;
+		dai_link->platform_name	= cinfo->platform;
+		dai_link->codec_name	= cinfo->codec;
+		dai_link->cpu_dai_name	= cinfo->cpu_dai.name;
+		dai_link->codec_dai_name = cinfo->codec_dai.name;
+		dai_link->dai_fmt	= cinfo->daifmt;
+		dai_link->init		= asoc_simple_card_dai_init;
+		memcpy(&priv->dai_props->cpu_dai, &cinfo->cpu_dai,
+					sizeof(priv->dai_props->cpu_dai));
+		memcpy(&priv->dai_props->codec_dai, &cinfo->codec_dai,
+					sizeof(priv->dai_props->codec_dai));
+	}
+
+	snd_soc_card_set_drvdata(card, priv);
+
+	ret = devm_snd_soc_register_card(dev, card);
+	if (ret < 0)
+		goto err;
+
+	return 0;
+err:
+	asoc_simple_card_clean_reference(card);
+
+	return ret;
+}
+
+static int asoc_simple_card_remove(struct platform_device *pdev)
+{
+	struct snd_soc_card *card = platform_get_drvdata(pdev);
+
+	return asoc_simple_card_clean_reference(card);
+}
+
+static const struct of_device_id asoc_simple_of_match[] = {
+	{ .compatible = "simple-audio-card", },
+	{},
+};
+MODULE_DEVICE_TABLE(of, asoc_simple_of_match);
+
+static struct platform_driver asoc_simple_card = {
+	.driver = {
+		.name = "asoc-simple-card",
+		.pm = &snd_soc_pm_ops,
+		.of_match_table = asoc_simple_of_match,
+	},
+	.probe = asoc_simple_card_probe,
+	.remove = asoc_simple_card_remove,
+};
+
+module_platform_driver(asoc_simple_card);
+
+MODULE_ALIAS("platform:asoc-simple-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/simple-scu-card.c b/sound/soc/generic/simple-scu-card.c
new file mode 100644
index 000000000..16a83bc51
--- /dev/null
+++ b/sound/soc/generic/simple-scu-card.c
@@ -0,0 +1,312 @@
+// SPDX-License-Identifier: GPL-2.0
+//
+// ASoC simple SCU sound card support
+//
+// Copyright (C) 2015 Renesas Solutions Corp.
+// Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
+//
+// based on ${LINUX}/sound/soc/generic/simple-card.c
+
+#include <linux/clk.h>
+#include <linux/device.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/platform_device.h>
+#include <linux/string.h>
+#include <sound/jack.h>
+#include <sound/soc.h>
+#include <sound/soc-dai.h>
+#include <sound/simple_card_utils.h>
+
+struct simple_card_data {
+	struct snd_soc_card snd_card;
+	struct snd_soc_codec_conf codec_conf;
+	struct asoc_simple_dai *dai_props;
+	struct snd_soc_dai_link *dai_link;
+	struct asoc_simple_card_data adata;
+};
+
+#define simple_priv_to_card(priv) (&(priv)->snd_card)
+#define simple_priv_to_props(priv, i) ((priv)->dai_props + (i))
+#define simple_priv_to_dev(priv) (simple_priv_to_card(priv)->dev)
+#define simple_priv_to_link(priv, i) (simple_priv_to_card(priv)->dai_link + (i))
+
+#define DAI	"sound-dai"
+#define CELL	"#sound-dai-cells"
+#define PREFIX	"simple-audio-card,"
+
+static int asoc_simple_card_startup(struct snd_pcm_substream *substream)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct simple_card_data *priv =	snd_soc_card_get_drvdata(rtd->card);
+	struct asoc_simple_dai *dai_props =
+		simple_priv_to_props(priv, rtd->num);
+
+	return asoc_simple_card_clk_enable(dai_props);
+}
+
+static void asoc_simple_card_shutdown(struct snd_pcm_substream *substream)
+{
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct simple_card_data *priv =	snd_soc_card_get_drvdata(rtd->card);
+	struct asoc_simple_dai *dai_props =
+		simple_priv_to_props(priv, rtd->num);
+
+	asoc_simple_card_clk_disable(dai_props);
+}
+
+static const struct snd_soc_ops asoc_simple_card_ops = {
+	.startup = asoc_simple_card_startup,
+	.shutdown = asoc_simple_card_shutdown,
+};
+
+static int asoc_simple_card_dai_init(struct snd_soc_pcm_runtime *rtd)
+{
+	struct simple_card_data *priv = snd_soc_card_get_drvdata(rtd->card);
+	struct snd_soc_dai *dai;
+	struct snd_soc_dai_link *dai_link;
+	struct asoc_simple_dai *dai_props;
+	int num = rtd->num;
+
+	dai_link	= simple_priv_to_link(priv, num);
+	dai_props	= simple_priv_to_props(priv, num);
+	dai		= dai_link->dynamic ?
+				rtd->cpu_dai :
+				rtd->codec_dai;
+
+	return asoc_simple_card_init_dai(dai, dai_props);
+}
+
+static int asoc_simple_card_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
+					struct snd_pcm_hw_params *params)
+{
+	struct simple_card_data *priv = snd_soc_card_get_drvdata(rtd->card);
+
+	asoc_simple_card_convert_fixup(&priv->adata, params);
+
+	return 0;
+}
+
+static int asoc_simple_card_dai_link_of(struct device_node *np,
+					struct simple_card_data *priv,
+					unsigned int daifmt,
+					int idx, bool is_fe)
+{
+	struct device *dev = simple_priv_to_dev(priv);
+	struct snd_soc_dai_link *dai_link = simple_priv_to_link(priv, idx);
+	struct asoc_simple_dai *dai_props = simple_priv_to_props(priv, idx);
+	struct snd_soc_card *card = simple_priv_to_card(priv);
+	int ret;
+
+	if (is_fe) {
+		int is_single_links = 0;
+
+		/* BE is dummy */
+		dai_link->codec_of_node		= NULL;
+		dai_link->codec_dai_name	= "snd-soc-dummy-dai";
+		dai_link->codec_name		= "snd-soc-dummy";
+
+		/* FE settings */
+		dai_link->dynamic		= 1;
+		dai_link->dpcm_merged_format	= 1;
+
+		ret = asoc_simple_card_parse_cpu(np, dai_link, DAI, CELL,
+						 &is_single_links);
+		if (ret)
+			return ret;
+
+		ret = asoc_simple_card_parse_clk_cpu(dev, np, dai_link, dai_props);
+		if (ret < 0)
+			return ret;
+
+		ret = asoc_simple_card_set_dailink_name(dev, dai_link,
+							"fe.%s",
+							dai_link->cpu_dai_name);
+		if (ret < 0)
+			return ret;
+
+		asoc_simple_card_canonicalize_cpu(dai_link, is_single_links);
+	} else {
+		/* FE is dummy */
+		dai_link->cpu_of_node		= NULL;
+		dai_link->cpu_dai_name		= "snd-soc-dummy-dai";
+		dai_link->cpu_name		= "snd-soc-dummy";
+
+		/* BE settings */
+		dai_link->no_pcm		= 1;
+		dai_link->be_hw_params_fixup	= asoc_simple_card_be_hw_params_fixup;
+
+		ret = asoc_simple_card_parse_codec(np, dai_link, DAI, CELL);
+		if (ret < 0)
+			return ret;
+
+		ret = asoc_simple_card_parse_clk_codec(dev, np, dai_link, dai_props);
+		if (ret < 0)
+			return ret;
+
+		ret = asoc_simple_card_set_dailink_name(dev, dai_link,
+							"be.%s",
+							dai_link->codec_dai_name);
+		if (ret < 0)
+			return ret;
+
+		snd_soc_of_parse_audio_prefix(card,
+					      &priv->codec_conf,
+					      dai_link->codec_of_node,
+					      PREFIX "prefix");
+	}
+
+	ret = asoc_simple_card_of_parse_tdm(np, dai_props);
+	if (ret)
+		return ret;
+
+	ret = asoc_simple_card_canonicalize_dailink(dai_link);
+	if (ret < 0)
+		return ret;
+
+	dai_link->dai_fmt		= daifmt;
+	dai_link->dpcm_playback		= 1;
+	dai_link->dpcm_capture		= 1;
+	dai_link->ops			= &asoc_simple_card_ops;
+	dai_link->init			= asoc_simple_card_dai_init;
+
+	return 0;
+}
+
+static int asoc_simple_card_parse_of(struct simple_card_data *priv)
+
+{
+	struct device *dev = simple_priv_to_dev(priv);
+	struct device_node *np;
+	struct snd_soc_card *card = simple_priv_to_card(priv);
+	struct device_node *node = dev->of_node;
+	unsigned int daifmt = 0;
+	bool is_fe;
+	int ret, i;
+
+	if (!node)
+		return -EINVAL;
+
+	ret = asoc_simple_card_of_parse_widgets(card, PREFIX);
+	if (ret < 0)
+		return ret;
+
+	ret = asoc_simple_card_of_parse_routing(card, PREFIX, 0);
+	if (ret < 0)
+		return ret;
+
+	asoc_simple_card_parse_convert(dev, PREFIX, &priv->adata);
+
+	/* find 1st codec */
+	np = of_get_child_by_name(node, PREFIX "codec");
+	if (!np)
+		return -ENODEV;
+
+	ret = asoc_simple_card_parse_daifmt(dev, node, np, PREFIX, &daifmt);
+	if (ret < 0)
+		return ret;
+
+	i = 0;
+	for_each_child_of_node(node, np) {
+		is_fe = false;
+		if (strcmp(np->name, PREFIX "cpu") == 0)
+			is_fe = true;
+
+		ret = asoc_simple_card_dai_link_of(np, priv, daifmt, i, is_fe);
+		if (ret < 0)
+			return ret;
+		i++;
+	}
+
+	ret = asoc_simple_card_parse_card_name(card, PREFIX);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
+static int asoc_simple_card_probe(struct platform_device *pdev)
+{
+	struct simple_card_data *priv;
+	struct snd_soc_dai_link *dai_link;
+	struct asoc_simple_dai *dai_props;
+	struct snd_soc_card *card;
+	struct device *dev = &pdev->dev;
+	struct device_node *np = dev->of_node;
+	int num, ret;
+
+	/* Allocate the private data */
+	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+	if (!priv)
+		return -ENOMEM;
+
+	num = of_get_child_count(np);
+
+	dai_props = devm_kcalloc(dev, num, sizeof(*dai_props), GFP_KERNEL);
+	dai_link  = devm_kcalloc(dev, num, sizeof(*dai_link), GFP_KERNEL);
+	if (!dai_props || !dai_link)
+		return -ENOMEM;
+
+	priv->dai_props				= dai_props;
+	priv->dai_link				= dai_link;
+
+	/* Init snd_soc_card */
+	card = simple_priv_to_card(priv);
+	card->owner		= THIS_MODULE;
+	card->dev		= dev;
+	card->dai_link		= priv->dai_link;
+	card->num_links		= num;
+	card->codec_conf	= &priv->codec_conf;
+	card->num_configs	= 1;
+
+	ret = asoc_simple_card_parse_of(priv);
+	if (ret < 0) {
+		if (ret != -EPROBE_DEFER)
+			dev_err(dev, "parse error %d\n", ret);
+		goto err;
+	}
+
+	snd_soc_card_set_drvdata(card, priv);
+
+	ret = devm_snd_soc_register_card(dev, card);
+	if (ret < 0)
+		goto err;
+
+	return 0;
+err:
+	asoc_simple_card_clean_reference(card);
+
+	return ret;
+}
+
+static int asoc_simple_card_remove(struct platform_device *pdev)
+{
+	struct snd_soc_card *card = platform_get_drvdata(pdev);
+
+	return asoc_simple_card_clean_reference(card);
+}
+
+static const struct of_device_id asoc_simple_of_match[] = {
+	{ .compatible = "renesas,rsrc-card", },
+	{ .compatible = "simple-scu-audio-card", },
+	{},
+};
+MODULE_DEVICE_TABLE(of, asoc_simple_of_match);
+
+static struct platform_driver asoc_simple_card = {
+	.driver = {
+		.name = "simple-scu-audio-card",
+		.pm = &snd_soc_pm_ops,
+		.of_match_table = asoc_simple_of_match,
+	},
+	.probe = asoc_simple_card_probe,
+	.remove = asoc_simple_card_remove,
+};
+
+module_platform_driver(asoc_simple_card);
+
+MODULE_ALIAS("platform:asoc-simple-scu-card");
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("ASoC Simple SCU Sound Card");
+MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");