Resguardo inicial

linux-7.2.3/sound/soc/generic/Kconfig

@@ -0,0 +1,43 @@
+# SPDX-License-Identifier: GPL-2.0-only
+menu "Generic drivers"
+
+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.
+
+endmenu

linux-7.2.3/sound/soc/generic/Makefile

@@ -0,0 +1,14 @@
+# SPDX-License-Identifier: GPL-2.0
+snd-soc-simple-card-utils-y	:= simple-card-utils.o
+snd-soc-simple-card-y		:= simple-card.o
+snd-soc-audio-graph-card-y	:= audio-graph-card.o
+snd-soc-audio-graph-card2-y	:= audio-graph-card2.o
+snd-soc-audio-graph-card2-custom-sample-y := audio-graph-card2-custom-sample.o
+snd-soc-test-component-y	:= 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

linux-7.2.3/sound/soc/generic/audio-graph-card.c

@@ -0,0 +1,661 @@
+// 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/cleanup.h>
+#include <linux/clk.h>
+#include <linux/device.h>
+#include <linux/gpio/consumer.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_graph.h>
+#include <linux/platform_device.h>
+#include <linux/string.h>
+#include <sound/graph_card.h>
+
+#define DPCM_SELECTABLE 1
+
+#define graph_ret(priv, ret) _graph_ret(priv, __func__, ret)
+static inline int _graph_ret(struct simple_util_priv *priv,
+			     const char *func, int ret)
+{
+	return snd_soc_ret(simple_priv_to_dev(priv), ret, "at %s()\n", func);
+}
+
+#define ep_to_port(ep)	of_get_parent(ep)
+static struct device_node *port_to_ports(struct device_node *port)
+{
+	struct device_node *ports = of_get_parent(port);
+
+	if (!of_node_name_eq(ports, "ports")) {
+		of_node_put(ports);
+		return NULL;
+	}
+	return ports;
+}
+
+static int graph_outdrv_event(struct snd_soc_dapm_widget *w,
+			      struct snd_kcontrol *kcontrol,
+			      int event)
+{
+	struct snd_soc_card *card = snd_soc_dapm_to_card(w->dapm);
+	struct simple_util_priv *priv = snd_soc_card_get_drvdata(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	= simple_util_startup,
+	.shutdown	= simple_util_shutdown,
+	.hw_params	= simple_util_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_new ||
+		    (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 simple_util_data *adata)
+{
+	struct device_node *top = dev->of_node;
+	struct device_node *port  __free(device_node) = ep_to_port(ep);
+	struct device_node *ports __free(device_node) = port_to_ports(port);
+	struct device_node *node  __free(device_node) = of_graph_get_port_parent(ep);
+
+	simple_util_parse_convert(top,   NULL,   adata);
+	simple_util_parse_convert(ports, NULL,   adata);
+	simple_util_parse_convert(port,  NULL,   adata);
+	simple_util_parse_convert(ep,    NULL,   adata);
+}
+
+static int graph_parse_node(struct simple_util_priv *priv,
+			    struct device_node *ep,
+			    struct link_info *li,
+			    int *cpu)
+{
+	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 simple_util_dai *dai;
+	int ret;
+
+	if (cpu) {
+		dlc = snd_soc_link_to_cpu(dai_link, 0);
+		dai = simple_props_to_dai_cpu(dai_props, 0);
+	} else {
+		dlc = snd_soc_link_to_codec(dai_link, 0);
+		dai = simple_props_to_dai_codec(dai_props, 0);
+	}
+
+	ret = graph_util_parse_dai(priv, ep, dlc, cpu);
+	if (ret < 0)
+		goto end;
+
+	ret = simple_util_parse_tdm(ep, dai);
+	if (ret < 0)
+		goto end;
+
+	ret = simple_util_parse_clk(dev, ep, dai, dlc);
+end:
+	return graph_ret(priv, ret);
+}
+
+static int graph_link_init(struct simple_util_priv *priv,
+			   struct device_node *ep_cpu,
+			   struct device_node *ep_codec,
+			   struct link_info *li,
+			   char *name)
+{
+	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 device_node *port_cpu    __free(device_node) = ep_to_port(ep_cpu);
+	struct device_node *port_codec  __free(device_node) = ep_to_port(ep_codec);
+	struct device_node *ports_cpu   __free(device_node) = port_to_ports(port_cpu);
+	struct device_node *ports_codec __free(device_node) = port_to_ports(port_codec);
+	enum snd_soc_trigger_order trigger_start = SND_SOC_TRIGGER_ORDER_DEFAULT;
+	enum snd_soc_trigger_order trigger_stop  = SND_SOC_TRIGGER_ORDER_DEFAULT;
+	bool playback_only = 0, capture_only = 0;
+	int ret;
+
+	ret = simple_util_parse_daifmt(dev, ep_cpu, ep_codec,
+				       NULL, &dai_link->dai_fmt);
+	if (ret < 0)
+		goto end;
+
+	graph_util_parse_link_direction(top,		&playback_only, &capture_only);
+	graph_util_parse_link_direction(port_cpu,	&playback_only, &capture_only);
+	graph_util_parse_link_direction(port_codec,	&playback_only, &capture_only);
+	graph_util_parse_link_direction(ep_cpu,		&playback_only, &capture_only);
+	graph_util_parse_link_direction(ep_codec,	&playback_only, &capture_only);
+
+	of_property_read_u32(top,		"mclk-fs", &dai_props->mclk_fs);
+	of_property_read_u32(ports_cpu,		"mclk-fs", &dai_props->mclk_fs);
+	of_property_read_u32(ports_codec,	"mclk-fs", &dai_props->mclk_fs);
+	of_property_read_u32(port_cpu,		"mclk-fs", &dai_props->mclk_fs);
+	of_property_read_u32(port_codec,	"mclk-fs", &dai_props->mclk_fs);
+	of_property_read_u32(ep_cpu,		"mclk-fs", &dai_props->mclk_fs);
+	of_property_read_u32(ep_codec,		"mclk-fs", &dai_props->mclk_fs);
+
+	graph_util_parse_trigger_order(priv, top,		&trigger_start, &trigger_stop);
+	graph_util_parse_trigger_order(priv, ports_cpu,		&trigger_start, &trigger_stop);
+	graph_util_parse_trigger_order(priv, ports_codec,	&trigger_start, &trigger_stop);
+	graph_util_parse_trigger_order(priv, port_cpu,		&trigger_start, &trigger_stop);
+	graph_util_parse_trigger_order(priv, port_cpu,		&trigger_start, &trigger_stop);
+	graph_util_parse_trigger_order(priv, ep_cpu,		&trigger_start, &trigger_stop);
+	graph_util_parse_trigger_order(priv, ep_codec,		&trigger_start, &trigger_stop);
+
+	dai_link->playback_only	= playback_only;
+	dai_link->capture_only	= capture_only;
+
+	dai_link->trigger_start	= trigger_start;
+	dai_link->trigger_stop	= trigger_stop;
+
+	dai_link->init		= simple_util_dai_init;
+	dai_link->ops		= &graph_ops;
+	if (priv->ops)
+		dai_link->ops	= priv->ops;
+
+	ret = simple_util_set_dailink_name(priv, dai_link, name);
+end:
+	return graph_ret(priv, ret);
+}
+
+static int graph_dai_link_of_dpcm(struct simple_util_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 = snd_soc_link_to_cpu(dai_link, 0);
+		struct snd_soc_dai_link_component *platforms = snd_soc_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)
+			goto end;
+
+		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 = simple_util_be_hw_params_fixup;
+		}
+
+		simple_util_canonicalize_cpu(cpus, is_single_links);
+		simple_util_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 = snd_soc_link_to_codec(dai_link, 0);
+
+		/* CPU is dummy */
+
+		/* BE settings */
+		dai_link->no_pcm		= 1;
+		dai_link->be_hw_params_fixup	= simple_util_be_hw_params_fixup;
+
+		ret = graph_parse_node(priv, codec_ep, li, NULL);
+		if (ret < 0)
+			goto end;
+
+		snprintf(dai_name, sizeof(dai_name),
+			 "be.%pOFP.%s", codecs->of_node, codecs->dai_name);
+
+		/* check "prefix" from top node */
+		struct device_node *port  __free(device_node) = ep_to_port(ep);
+		struct device_node *ports __free(device_node) = port_to_ports(port);
+
+		snd_soc_of_parse_node_prefix(top,   cconf, codecs->of_node, "prefix");
+		snd_soc_of_parse_node_prefix(ports, cconf, codecs->of_node, "prefix");
+		snd_soc_of_parse_node_prefix(port,  cconf, codecs->of_node, "prefix");
+	}
+
+	graph_parse_convert(dev, ep, &dai_props->adata);
+
+	ret = graph_link_init(priv, cpu_ep, codec_ep, li, dai_name);
+
+	li->link++;
+end:
+	return graph_ret(priv, ret);
+}
+
+static int graph_dai_link_of(struct simple_util_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 = snd_soc_link_to_cpu(dai_link, 0);
+	struct snd_soc_dai_link_component *codecs = snd_soc_link_to_codec(dai_link, 0);
+	struct snd_soc_dai_link_component *platforms = snd_soc_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)
+		goto end;
+
+	ret = graph_parse_node(priv, codec_ep, li, NULL);
+	if (ret < 0)
+		goto end;
+
+	snprintf(dai_name, sizeof(dai_name),
+		 "%s-%s", cpus->dai_name, codecs->dai_name);
+
+	simple_util_canonicalize_cpu(cpus, is_single_links);
+	simple_util_canonicalize_platform(platforms, cpus);
+
+	ret = graph_link_init(priv, cpu_ep, codec_ep, li, dai_name);
+	if (ret < 0)
+		goto end;
+
+	li->link++;
+end:
+	return graph_ret(priv, ret);
+}
+
+static inline bool parse_as_dpcm_link(struct simple_util_priv *priv,
+				      struct device_node *codec_port,
+				      struct simple_util_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) ||
+	    simple_util_is_convert_required(adata))
+		return true;
+
+	return false;
+}
+
+static int __graph_for_each_link(struct simple_util_priv *priv,
+			struct link_info *li,
+			int (*func_noml)(struct simple_util_priv *priv,
+					 struct device_node *cpu_ep,
+					 struct device_node *codec_ep,
+					 struct link_info *li),
+			int (*func_dpcm)(struct simple_util_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 *codec_port_old = NULL;
+	struct simple_util_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;
+
+		/* loop for all CPU endpoint */
+		for_each_of_graph_port_endpoint(cpu_port, cpu_ep) {
+			/* get codec */
+			struct device_node *codec_ep   __free(device_node) = of_graph_get_remote_endpoint(cpu_ep);
+			struct device_node *codec_port __free(device_node) = ep_to_port(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);
+			}
+
+			if (ret < 0)
+				goto end;
+
+			codec_port_old = codec_port;
+		}
+	}
+end:
+	return graph_ret(priv, ret);
+}
+
+static int graph_for_each_link(struct simple_util_priv *priv,
+			       struct link_info *li,
+			       int (*func_noml)(struct simple_util_priv *priv,
+						struct device_node *cpu_ep,
+						struct device_node *codec_ep,
+						struct link_info *li),
+			       int (*func_dpcm)(struct simple_util_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 graph_ret(priv, ret);
+}
+
+static int graph_count_noml(struct simple_util_priv *priv,
+			    struct device_node *cpu_ep,
+			    struct device_node *codec_ep,
+			    struct link_info *li)
+{
+	struct device *dev = simple_priv_to_dev(priv);
+	int ret = -EINVAL;
+
+	if (li->link >= SNDRV_MAX_LINKS)
+		goto end;
+
+	/*
+	 * 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");
+	ret = 0;
+end:
+	return graph_ret(priv, ret);
+}
+
+static int graph_count_dpcm(struct simple_util_priv *priv,
+			    struct device_node *cpu_ep,
+			    struct device_node *codec_ep,
+			    struct link_info *li)
+{
+	struct device *dev = simple_priv_to_dev(priv);
+	int ret = -EINVAL;
+
+	if (li->link >= SNDRV_MAX_LINKS)
+		goto end;
+
+	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");
+	ret = 0;
+end:
+	return graph_ret(priv, ret);
+}
+
+static int graph_get_dais_count(struct simple_util_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 simple_util_priv *priv, struct device *dev)
+{
+	struct snd_soc_card *card = simple_priv_to_card(priv);
+	int ret = -ENOMEM;
+
+	struct link_info *li __free(kfree) = kzalloc_obj(*li);
+	if (!li)
+		goto end;
+
+	card->owner = THIS_MODULE;
+	card->dev = dev;
+
+	ret = graph_get_dais_count(priv, li);
+	if (ret < 0)
+		goto end;
+
+	ret = -EINVAL;
+	if (!li->link)
+		goto end;
+
+	ret = simple_util_init_priv(priv, li);
+	if (ret < 0)
+		goto end;
+
+	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 end;
+	}
+
+	ret = simple_util_parse_widgets(card, NULL);
+	if (ret < 0)
+		goto end;
+
+	ret = simple_util_parse_routing(card, NULL);
+	if (ret < 0)
+		goto end;
+
+	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 = simple_util_parse_card_name(priv, NULL);
+	if (ret < 0)
+		goto err;
+
+	snd_soc_card_set_drvdata(card, priv);
+
+	simple_util_debug_info(priv);
+
+	ret = devm_snd_soc_register_card(dev, card);
+	if (ret < 0)
+		goto err;
+
+	return 0;
+err:
+	simple_util_clean_reference(card);
+end:
+	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 simple_util_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		= graph_util_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 = simple_util_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>");

linux-7.2.3/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/device.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <sound/graph_card.h>
+
+/*
+ * Custom driver can have own priv
+ * which includes simple_util_priv.
+ */
+struct custom_priv {
+	struct simple_util_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 simple_util_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 graph_util_card_probe(card);
+}
+
+static int custom_hook_pre(struct simple_util_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 simple_util_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 simple_util_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 simple_util_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 simple_util_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 = snd_soc_substream_to_rtd(substream);
+	struct simple_util_priv *priv = snd_soc_card_get_drvdata(rtd->card);
+	struct device *dev = simple_priv_to_dev(priv);
+
+	dev_info(dev, "custom startup\n");
+
+	return simple_util_startup(substream);
+}
+
+/* You can use custom ops */
+static const struct snd_soc_ops custom_ops = {
+	.startup	= custom_startup,
+	.shutdown	= simple_util_shutdown,
+	.hw_params	= simple_util_hw_params,
+};
+
+static int custom_probe(struct platform_device *pdev)
+{
+	struct custom_priv *custom_priv;
+	struct simple_util_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 = simple_util_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>");

linux-7.2.3/sound/soc/generic/audio-graph-card2-custom-sample1.dtsi

@@ -0,0 +1,396 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * audio-graph-card2-custom-sample1.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-sample1.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
+ */
+/ {
+	audio-graph-card2-custom-sample-1 {
+		/*
+		 * You can use audio-graph-card2 directly by using
+		 *
+		 * compatible = "audio-graph-card2";
+		 */
+		compatible = "audio-graph-card2-custom-sample";
+		label = "card2-custom-sample-1";
+
+		/*
+		 * @ : used at links
+		 */
+		links = <
+			/*
+			 *
+			 * [Normal]
+			 *
+			 *	     <cpu1_0>
+			 *	cpu1_0 <-@-----> codec1_0
+			 */
+			 &cpu1_0 /* CPU side only */
+
+			/*
+			 * [Semi-Multi]
+			 *
+			 * CPU:Codec = 1:N
+			 *
+			 *		<sm>	+-+
+			 *	cpu1_1 <--@---->| |-> codec1_1
+			 *			| |-> codec1_2
+			 *			+-+
+			 */
+			&sm /* CPU side only */
+
+			/*
+			 * [Multi-CPU/Codec-A]
+			 *
+			 *		 +-+ <mcpuA>	+-+
+			 *	cpu1_2 <-| |<---@------>| |-> codec1_3
+			 *	cpu1_3 <-| |		| |-> codec1_4
+			 *		 +-+		+-+
+			 */
+			&mcpuA /* CPU side only */
+
+			/*
+			 * [Multi-CPU/Codec-B]
+			 *
+			 *		 +-+ <mcpuB>	+-+
+			 *		 | |<---@------>| |
+			 *		 | |		| |
+			 *	cpu1_4 <-| |<---------->| |-> codec1_5
+			 *	cpu1_5 <-| |<---+------>| |-> codec1_6
+			 *		 +-+	 \----->| |-> codec1_7
+			 *				+-+
+			 */
+			&mcpuB /* CPU side only */
+
+			/*
+			 * [Multi-CPU/Codec-C]
+			 *
+			 *		 +-+ <mcpuC>	+-+
+			 *		 | |<---@------>| |
+			 *		 | |		| |
+			 *	cpu1_6 <-| |<---------->| |-> codec1_8
+			 *	cpu1_7 <-| |<-----+---->| |-> codec1_9
+			 *	cpu1_8 <-| |<----/	+-+
+			 *		 +-+
+			 */
+			&mcpuC /* CPU side only */
+		>;
+
+		multi {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			/*
+			 * [Semi-Multi]
+			 *
+			 *		<sm>	+---+
+			 *	cpu1_1 <---@--->|X A|-> codec1_1
+			 *			|  B|-> codec1_2
+			 *			+---+
+			 */
+			ports@0 {
+				reg = <0>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+				port@0 { reg = <0>; smcodec_ep:   endpoint { remote-endpoint = <&cpu1_1_ep>;   };};/* (X) to pair */
+				port@1 { reg = <1>; smcodec_A_ep: endpoint { remote-endpoint = <&codec1_1_ep>; };};/* (A) Multi Element */
+				port@2 { reg = <2>; smcodec_B_ep: endpoint { remote-endpoint = <&codec1_2_ep>; };};/* (B) Multi Element */
+			};
+
+			/*
+			 * [Multi-CPU-A]
+			 *
+			 *		 +---+ <mcpuA>	+---+
+			 *	cpu1_2 <-|A X|<---@---->|x a|-> codec1_3
+			 *	cpu1_3 <-|B  |		|  b|-> codec1_4
+			 *		 +---+		+---+
+			 */
+			ports@1 {
+				reg = <1>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+			mcpuA:	port@0 { reg = <0>; mcpu_A_ep:  endpoint { remote-endpoint = <&mcodec_A_ep>; };}; /* (X) to pair */
+				port@1 { reg = <1>; mcpu_AA_ep: endpoint { remote-endpoint = <&cpu1_2_ep>;   };}; /* (A) Multi Element */
+				port@2 { reg = <2>; mcpu_AB_ep: endpoint { remote-endpoint = <&cpu1_3_ep>;   };}; /* (B) Multi Element */
+			};
+
+			/*
+			 * [Multi-Codec-A]
+			 *
+			 *		 +---+ <mcpuA>	+---+
+			 *	cpu1_2 <-|A X|<-@------>|x a|-> codec1_3
+			 *	cpu1_3 <-|B  |		|  b|-> codec1_4
+			 *		 +---+		+---+
+			 */
+			ports@2 {
+				reg = <2>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+				port@0 { reg = <0>; mcodec_A_ep:  endpoint { remote-endpoint = <&mcpu_A_ep>;   };}; /* (x) to pair */
+				port@1 { reg = <1>; mcodec_Aa_ep: endpoint { remote-endpoint = <&codec1_3_ep>; };}; /* (a) Multi Element */
+				port@2 { reg = <2>; mcodec_Ab_ep: endpoint { remote-endpoint = <&codec1_4_ep>; };}; /* (b) Multi Element */
+			};
+
+			/*
+			 * [Multi-CPU-B]
+			 *
+			 *		 +---+ <mcpuB>	+---+
+			 *		 |  X|<---@---->|x  |
+			 *		 |   |		|   |
+			 *	cpu1_4 <-|A 1|<-------->|3 a|-> codec1_5
+			 *	cpu1_5 <-|B 2|<---+---->|4 b|-> codec1_6
+			 *		 +---+	   \--->|5 c|-> codec1_7
+			 *				+---+
+			 */
+			ports@3 {
+				reg = <3>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+			mcpuB:	port@0 {
+					reg = <0>;
+					mcpu_BX_ep:     endpoint { remote-endpoint = <&mcodec_Bx_ep>; }; /* (X) to pair */
+				};
+				port@1 {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					reg = <1>;
+					mcpu_BA_ep:   endpoint@0 { reg = <0>; remote-endpoint = <&cpu1_4_ep>;    }; /* (A) Multi Element */
+					mcpu_B1_ep:   endpoint@1 { reg = <1>; remote-endpoint = <&mcodec_B3_ep>; }; /* (1) connected Codec */
+				};
+				port@2 {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					reg = <2>;
+					mcpu_BB_ep:   endpoint@0 { reg = <0>; remote-endpoint = <&cpu1_5_ep>;    }; /* (B) Multi Element */
+					mcpu_B2_0_ep: endpoint@1 { reg = <1>; remote-endpoint = <&mcodec_B4_ep>; }; /* (2) connected Codec */
+					mcpu_B2_1_ep: endpoint@2 { reg = <2>; remote-endpoint = <&mcodec_B5_ep>; }; /* (2) connected Codec */
+				};
+			};
+
+			/*
+			 * [Multi-Codec-B]
+			 *
+			 *		 +---+ <mcpuB>	+---+
+			 *		 |  X|<-@------>|x  |
+			 *		 |   |		|   |
+			 *	cpu1_4 <-|A 1|<-------->|3 a|-> codec1_5
+			 *	cpu1_5 <-|B 2|<---+---->|4 b|-> codec1_6
+			 *		 +---+	   \--->|5 c|-> codec1_7
+			 *				+---+
+			 */
+			ports@4 {
+				reg = <4>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+				port@0 {
+					reg = <0>;
+					mcodec_Bx_ep:   endpoint { remote-endpoint = <&mcpu_BX_ep>;  }; /* (x) to pair */
+				};
+				port@1 {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					reg = <1>;
+					mcodec_Ba_ep: endpoint@0 { reg = <0>; remote-endpoint = <&codec1_5_ep>;}; /* (a) Multi Element */
+					mcodec_B3_ep: endpoint@1 { reg = <1>; remote-endpoint = <&mcpu_B1_ep>; }; /* (3) connected CPU */
+				};
+				port@2 {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					reg = <2>;
+					mcodec_Bb_ep: endpoint@0 { reg = <0>; remote-endpoint = <&codec1_6_ep>; }; /* (b) Multi Element */
+					mcodec_B4_ep: endpoint@1 { reg = <1>; remote-endpoint = <&mcpu_B2_0_ep>;}; /* (4) connected CPU */
+				};
+				port@3 {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					reg = <3>;
+					mcodec_Bc_ep: endpoint@0 { reg = <0>; remote-endpoint = <&codec1_7_ep>; }; /* (c) Multi Element */
+					mcodec_B5_ep: endpoint@1 { reg = <1>; remote-endpoint = <&mcpu_B2_1_ep>;}; /* (5) connected CPU */
+				};
+			};
+
+			/*
+			 * [Multi-CPU-C]
+			 *
+			 *		 +---+ <mcpuC>	+---+
+			 *		 |  X|<-@------>|x  |
+			 *		 |   |		|   |
+			 *	cpu1_6 <-|A 1|<-------->|4 a|-> codec1_8
+			 *	cpu1_7 <-|B 2|<-----+-->|5 b|-> codec1_9
+			 *	cpu1_8 <-|C 3|<----/	+---+
+			 *		 +---+
+			 */
+			ports@5 {
+				reg = <5>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+			mcpuC:	port@0 {
+					reg = <0>;
+					mcpu_CX_ep:   endpoint { remote-endpoint = <&mcodec_Cx_ep>; }; /* (X) to pair */
+				};
+				port@1 {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					reg = <1>;
+					mcpu_CA_ep: endpoint@0 { reg = <0>; remote-endpoint = <&cpu1_6_ep>;    }; /* (A) Multi Element */
+					mcpu_C1_ep: endpoint@1 { reg = <1>; remote-endpoint = <&mcodec_C4_ep>; }; /* (1) connected Codec */
+				};
+				port@2 {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					reg = <2>;
+					mcpu_CB_ep: endpoint@0 { reg = <0>; remote-endpoint = <&cpu1_7_ep>;      }; /* (B) Multi Element */
+					mcpu_C2_ep: endpoint@1 { reg = <1>; remote-endpoint = <&mcodec_C5_0_ep>; }; /* (2) connected Codec */
+				};
+				port@3 {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					reg = <3>;
+					mcpu_CC_ep: endpoint@0 { reg = <0>; remote-endpoint = <&cpu1_8_ep>;      }; /* (C) Multi Element */
+					mcpu_C3_ep: endpoint@1 { reg = <1>; remote-endpoint = <&mcodec_C5_1_ep>; }; /* (3) connected Codec */
+				};
+			};
+
+			/*
+			 * [Multi-Codec-C]
+			 *
+			 *		 +---+ <mcpuC>	+---+
+			 *		 |  X|<-@------>|x  |
+			 *		 |   |		|   |
+			 *	cpu1_6 <-|A 1|<-------->|4 a|-> codec1_8
+			 *	cpu1_7 <-|B 2|<-----+-->|5 b|-> codec1_9
+			 *	cpu1_8 <-|C 3|<----/	+---+
+			 *		 +---+
+			 */
+			ports@6 {
+				reg = <6>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+				port@0 {
+					reg = <0>;
+					mcodec_Cx_ep: endpoint { remote-endpoint = <&mcpu_CX_ep>;  }; /* (x) to pair */
+				};
+				port@1 {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					reg = <1>;
+					mcodec_Ca_ep: endpoint@0 { reg = <0>; remote-endpoint = <&codec1_8_ep>;}; /* (a) Multi Element */
+					mcodec_C4_ep: endpoint@1 { reg = <1>; remote-endpoint = <&mcpu_C1_ep>; }; /* (4) connected CPU */
+				};
+				port@2 {
+					#address-cells = <1>;
+					#size-cells = <0>;
+					reg = <2>;
+					mcodec_Cb_ep:   endpoint@0 { reg = <0>; remote-endpoint = <&codec1_9_ep>;}; /* (b) Multi Element */
+					mcodec_C5_0_ep: endpoint@1 { reg = <1>; remote-endpoint = <&mcpu_C2_ep>; }; /* (5) connected CPU */
+					mcodec_C5_1_ep: endpoint@2 { reg = <2>; remote-endpoint = <&mcpu_C3_ep>; }; /* (5) connected CPU */
+				};
+			};
+		};
+	};
+
+	test_cpu_1 {
+		/*
+		 * 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] */
+			cpu1_0:	port@0 { reg = <0>; cpu1_0_ep: endpoint { remote-endpoint = <&codec1_0_ep>;}; };
+				/* [Semi-Multi] */
+			sm:	port@1 { reg = <1>; cpu1_1_ep: endpoint { remote-endpoint = <&smcodec_ep>; }; };
+				/* [Multi-CPU-A] */
+				port@2 { reg = <2>; cpu1_2_ep: endpoint { remote-endpoint = <&mcpu_AA_ep>; }; };
+				port@3 { reg = <3>; cpu1_3_ep: endpoint { remote-endpoint = <&mcpu_AB_ep>; }; };
+				/* [Multi-CPU-B] */
+				port@4 { reg = <4>; cpu1_4_ep: endpoint { remote-endpoint = <&mcpu_BA_ep>; }; };
+				port@5 { reg = <5>; cpu1_5_ep: endpoint { remote-endpoint = <&mcpu_BB_ep>; }; };
+				/* [Multi-CPU-C] */
+				port@6 { reg = <6>; cpu1_6_ep: endpoint { remote-endpoint = <&mcpu_CA_ep>; }; };
+				port@7 { reg = <7>; cpu1_7_ep: endpoint { remote-endpoint = <&mcpu_CB_ep>; }; };
+				port@8 { reg = <8>; cpu1_8_ep: endpoint { remote-endpoint = <&mcpu_CC_ep>; }; };
+		};
+	};
+
+	test_codec_1 {
+		/*
+		 * 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>;
+
+			/* [Normal] */
+			port@0 { reg = <0>; codec1_0_ep: endpoint { remote-endpoint = <&cpu1_0_ep>;    }; };
+			/* [Semi-Multi] */
+			port@1 { reg = <1>; codec1_1_ep: endpoint { remote-endpoint = <&smcodec_A_ep>; }; };
+			port@2 { reg = <2>; codec1_2_ep: endpoint { remote-endpoint = <&smcodec_B_ep>; }; };
+			/* [Multi-Codec-0] */
+			port@3 { reg = <3>; codec1_3_ep: endpoint { remote-endpoint = <&mcodec_Aa_ep>; }; };
+			port@4 { reg = <4>; codec1_4_ep: endpoint { remote-endpoint = <&mcodec_Ab_ep>; }; };
+			/* [Multi-Codec-1] */
+			port@5 { reg = <5>; codec1_5_ep: endpoint { remote-endpoint = <&mcodec_Ba_ep>; }; };
+			port@6 { reg = <6>; codec1_6_ep: endpoint { remote-endpoint = <&mcodec_Bb_ep>; }; };
+			port@7 { reg = <7>; codec1_7_ep: endpoint { remote-endpoint = <&mcodec_Bc_ep>; }; };
+			/* [Multi-Codec-2] */
+			port@8 { reg = <8>; codec1_8_ep: endpoint { remote-endpoint = <&mcodec_Ca_ep>; }; };
+			port@9 { reg = <9>; codec1_9_ep: endpoint { remote-endpoint = <&mcodec_Cb_ep>; }; };
+		};
+	};
+};

linux-7.2.3/sound/soc/generic/audio-graph-card2-custom-sample2.dtsi

@@ -0,0 +1,382 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * audio-graph-card2-custom-sample2.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-sample2.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
+ */
+/ {
+	audio-graph-card2-custom-sample-2 {
+		/*
+		 * You can use audio-graph-card2 directly by using
+		 *
+		 * compatible = "audio-graph-card2";
+		 */
+		compatible = "audio-graph-card2-custom-sample";
+		label = "card2-custom-sample-2";
+
+			/* for [DPCM]		   */
+			/* BE			FE */
+		routing = "TC DAI0 Playback",	"DAI0 Playback",
+			  "TC DAI0 Playback",	"DAI1 Playback",
+			  "DAI0 Capture",	"TC DAI0 Capture",
+			  "DAI1 Capture",	"TC DAI0 Capture",
+			/* for [DPCM-Multi]	   */
+			/* BE			FE */
+			  "TC DAI1 Playback",	"DAI2 Playback",
+			  "TC DAI2 Playback",	"DAI2 Playback",
+			  "TC DAI1 Playback",	"DAI3 Playback",
+			  "TC DAI2 Playback",	"DAI3 Playback",
+			  "DAI2 Capture",	"TC DAI1 Capture",
+			  "DAI2 Capture",	"TC DAI2 Capture",
+			  "DAI3 Capture",	"TC DAI1 Capture",
+			  "DAI3 Capture",	"TC DAI2 Capture",
+			/* for [Codec2Codec] */
+			  "TC OUT",		"TC DAI4 Playback",
+			  "TC DAI3 Capture",	"TC IN",
+			/* for [Codec2Codec-Multi] */
+			  "TC OUT",		"TC DAI7 Playback",
+			  "TC DAI5 Capture",	"TC IN",
+			  "TC OUT",		"TC DAI8 Playback",
+			  "TC DAI6 Capture",	"TC IN";
+
+		/*
+		 * @ : used at links
+		 */
+		links = <
+			/*
+			 * [DPCM]
+			 *
+			 *	cpu20/cpu21 are converting rate to 44.1kHz
+			 *
+			 *	FE				BE
+			 *		 <feA>	****	<beA>
+			 *	cpu2_0 <----@---*  *------@---> codec2_0 (44.1kHz)
+			 *	cpu2_1 <----@---*  *
+			 *		 <feB>	****
+			 */
+			 &feA &feB &beA /* both FE / BE */
+
+			/*
+			 * [DPCM-Multi]
+			 *
+			 *	FE				BE
+			 *		 <feC>	****	<beB>	+-+
+			 *	cpu2_2 <----@---*  *------@---> | | -> codec2_1
+			 *	cpu2_3 <----@---*  *		| | -> codec2_2
+			 *		 <feD>	****		+-+
+			 */
+			 &feC &feD &beB /* both FE / BE*/
+
+			/*
+			 * [Codec2Codec]
+			 *
+			 *		<c2c>
+			 *		+-@-> codec2_3
+			 *		|
+			 *		+---> codec2_4
+			 */
+			 &c2c /* CPU side only */
+
+			/*
+			 * [Codec2Codec-Multi]
+			 *
+			 * --NOTE--
+			 * Multi connect N:M is not supported by ASoC.
+			 *
+			 *	<c2c_m>	+-+
+			 *	+---@-->| |-> codec2_5
+			 *	|	| |-> codec2_6
+			 *	|	+-+
+			 *	|	+-+
+			 *	+------>| |-> codec2_7
+			 *		| |-> codec2_8
+			 *		+-+
+			 */
+			 &c2c_m /* CPU side only */
+		>;
+
+		multi {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			/*
+			 * [DPCM-Multi]::BE
+			 *
+			 *	FE				BE
+			 *		 <feC>	****	<beB>	+---+
+			 *	cpu2_2 <----@---*  *------@---> |x a| -> codec2_1
+			 *	cpu2_3 <----@---*  *		|  b| -> codec2_2
+			 *		 <feD>	****		+---+
+			 */
+			ports@2 {
+				reg = <2>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+				port@0 { reg = <0>; mbe_x_ep: endpoint { remote-endpoint = <&beB_ep>;      };};/* (x) to pair */
+				port@1 { reg = <1>; mbe_a_ep: endpoint { remote-endpoint = <&codec2_1_ep>; };};/* (a) Multi Element */
+				port@2 { reg = <2>; mbe_b_ep: endpoint { remote-endpoint = <&codec2_2_ep>; };};/* (b) Multi Element */
+			};
+
+			/*
+			 * [Codec2Codec-Multi]::CPU
+			 *
+			 *	<c2c_m>	  c2cmf +---+
+			 *	+---@---------->|X A|-> codec2_5
+			 *	|		|  B|-> codec2_6
+			 *	|		+---+
+			 *	|	  c2cmb +---+
+			 *	+-------------->|x a|-> codec2_7
+			 *			|  b|-> codec2_8
+			 *			+---+
+			 */
+			ports@3 {
+				reg = <3>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+				port@0 { reg = <0>; mc2c0X_ep: endpoint { remote-endpoint = <&c2cmf_ep>;    };};/* (X) to pair */
+				port@1 { reg = <1>; mc2c0A_ep: endpoint { remote-endpoint = <&codec2_5_ep>; };};/* (A) Multi Element */
+				port@2 { reg = <2>; mc2c0B_ep: endpoint { remote-endpoint = <&codec2_6_ep>; };};/* (B) Multi Element */
+			};
+
+			/*
+			 * [Codec2Codec-Multi]::Codec
+			 *
+			 *	<c2c_m>	  c2cmf +---+
+			 *	+---@---------->|X A|-> codec2_5
+			 *	|		|  B|-> codec2_6
+			 *	|		+---+
+			 *	|	  c2cmb +---+
+			 *	+-------------->|x a|-> codec2_7
+			 *			|  b|-> codec2_8
+			 *			+---+
+			 */
+			ports@4 {
+				reg = <4>;
+				#address-cells = <1>;
+				#size-cells = <0>;
+				port@0 { reg = <0>; mc2c1x_ep: endpoint { remote-endpoint = <&c2cmb_ep>;    };};/* (x) to pair */
+				port@1 { reg = <1>; mc2c1a_ep: endpoint { remote-endpoint = <&codec2_7_ep>; };};/* (a) Multi Element */
+				port@2 { reg = <2>; mc2c1b_ep: endpoint { remote-endpoint = <&codec2_8_ep>; };};/* (b) Multi Element */
+			};
+		};
+
+		dpcm {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			/* FE part */
+			ports@0 {
+				reg = <0>;
+
+				#address-cells = <1>;
+				#size-cells = <0>;
+				/*
+				 * [DPCM]::FE
+				 *
+				 *	FE				BE
+				 *		 <feA>	****	<beA>
+				 *	cpu2_0 <----@---*  *------@---> codec2_0 (44.1kHz)
+				 *	cpu2_1 <----@---*  *
+				 *		 <feB>	****
+				 */
+			feA:	port@0 { reg = <0>; feA_ep: endpoint { remote-endpoint = <&cpu2_0_ep>; }; };
+			feB:	port@1 { reg = <1>; feB_ep: endpoint { remote-endpoint = <&cpu2_1_ep>; }; };
+
+				/*
+				 * [DPCM-Multi]::FE
+				 *
+				 *	FE				BE
+				 *		 <feC>	****	<beB>	+-+
+				 *	cpu2_2 <----@---*  *------@---> | | -> codec2_1
+				 *	cpu2_3 <----@---*  *		| | -> codec2_2
+				 *		 <feD>	****		+-+
+				 */
+			feC:	port@2 { reg = <2>; feC_ep: endpoint { remote-endpoint = <&cpu2_2_ep>; }; };
+			feD:	port@3 { reg = <3>; feD_ep: endpoint { remote-endpoint = <&cpu2_3_ep>; }; };
+			};
+
+			/* BE part */
+			ports@1 {
+				reg = <1>;
+
+				#address-cells = <1>;
+				#size-cells = <0>;
+				/*
+				 * [DPCM]::BE
+				 *
+				 *	FE				BE
+				 *		 <feA>	****	<beA>
+				 *	cpu2_0 <----@---*  *------@---> codec2_0 (44.1kHz)
+				 *	cpu2_1 <----@---*  *
+				 *		 <feB>	****
+				 */
+			beA:	port@0 { reg = <0>; beA_ep: endpoint { remote-endpoint = <&codec2_0_ep>; }; };
+
+				/*
+				 * [DPCM-Multi]::BE
+				 *
+				 *	FE				BE
+				 *		 <feC>	****	<beB>	+-------+
+				 *	cpu2_2 <----@---*  *------@---> |mbe_x  | -> codec2_1
+				 *	cpu2_3 <----@---*  *		|	| -> codec2_2
+				 *		 <feD>	****		+-------+
+				 */
+			beB:	port@1 { reg = <1>; beB_ep: endpoint { remote-endpoint = <&mbe_x_ep>; }; };
+			};
+		};
+
+		codec2codec {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			/*
+			 * [Codec2Codec]
+			 *
+			 *	<c2c>
+			 *	+-@--> codec2_3
+			 *	|
+			 *	+----> codec2_4
+			 */
+			ports@0 {
+				reg = <0>;
+
+				#address-cells = <1>;
+				#size-cells = <0>;
+
+				/* use default settings */
+			c2c:	port@0 { reg = <0>; c2cf_ep: endpoint { remote-endpoint = <&codec2_3_ep>; }; };
+				port@1 { reg = <1>; c2cb_ep: endpoint { remote-endpoint = <&codec2_4_ep>; }; };
+			};
+
+			/*
+			 * [Codec2Codec-Multi]
+			 *
+			 *	<c2c_m>	  c2cmf +--------+
+			 *	+---@---------->|mc2c0X	 |-> codec2_5
+			 *	|		|	 |-> codec2_6
+			 *	|		+--------+
+			 *	|	  c2cmb +--------+
+			 *	+-------------->|mc2c1x	 |-> codec2_7
+			 *			|	 |-> codec2_8
+			 *			+--------+
+			 */
+			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 = <&mc2c0X_ep>; }; };
+				port@1 { reg = <1>; c2cmb_ep: endpoint { remote-endpoint = <&mc2c1x_ep>; }; };
+			};
+		};
+	};
+
+	test_cpu_2 {
+		/*
+		 * 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;
+
+			/* [DPCM]::FE */
+			port@0 { reg = <0>; cpu2_0_ep: endpoint { remote-endpoint = <&feA_ep>; };};
+			port@1 { reg = <1>; cpu2_1_ep: endpoint { remote-endpoint = <&feB_ep>; };};
+			/* [DPCM-Multi]::FE */
+			port@2 { reg = <2>; cpu2_2_ep: endpoint { remote-endpoint = <&feC_ep>; };};
+			port@3 { reg = <3>; cpu2_3_ep: endpoint { remote-endpoint = <&feD_ep>; };};
+		};
+	};
+
+	test_codec_2 {
+		/*
+		 * 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";
+
+			/* [DPCM]::BE */
+			port@0 {
+				 convert-rate = <44100>;
+				 reg = <0>; codec2_0_ep: endpoint { remote-endpoint = <&beA_ep>; };
+			};
+			/* [DPCM-Multi]::BE */
+			port@1 { reg = <1>; codec2_1_ep: endpoint { remote-endpoint = <&mbe_a_ep>; };};
+			port@2 { reg = <2>; codec2_2_ep: endpoint { remote-endpoint = <&mbe_b_ep>; };};
+			/* [Codec2Codec] */
+			port@3 { bitclock-master;
+				 frame-master;
+				 reg = <3>; codec2_3_ep: endpoint { remote-endpoint = <&c2cf_ep>; };};
+			port@4 { reg = <4>; codec2_4_ep: endpoint { remote-endpoint = <&c2cb_ep>; };};
+			/* [Codec2Codec-Multi] */
+			port@5 { bitclock-master;
+				 frame-master;
+				 reg = <5>; codec2_5_ep: endpoint { remote-endpoint = <&mc2c0A_ep>; };};
+			port@6 { reg = <6>; codec2_6_ep: endpoint { remote-endpoint = <&mc2c0B_ep>; };};
+			port@7 { reg = <7>; codec2_7_ep: endpoint { remote-endpoint = <&mc2c1a_ep>; };};
+			port@8 { reg = <8>; codec2_8_ep: endpoint { remote-endpoint = <&mc2c1b_ep>; };};
+		};
+	};
+};

linux-7.2.3/sound/soc/generic/simple-card.c

@@ -0,0 +1,786 @@
+// 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/cleanup.h>
+#include <linux/clk.h>
+#include <linux/device.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_platform.h>
+#include <linux/platform_device.h>
+#include <linux/string.h>
+#include <sound/simple_card_utils.h>
+#include <sound/soc.h>
+#include <sound/soc-dai.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	= simple_util_startup,
+	.shutdown	= simple_util_shutdown,
+	.hw_params	= simple_util_hw_params,
+};
+
+#define simple_ret(priv, ret) _simple_ret(priv, __func__, ret)
+static inline int _simple_ret(struct simple_util_priv *priv,
+			      const char *func, int ret)
+{
+	return snd_soc_ret(simple_priv_to_dev(priv), ret, "at %s()\n", func);
+}
+
+static int simple_parse_platform(struct simple_util_priv *priv,
+				 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 the of_node for component matching during
+	 * snd_soc_add_pcm_runtime().
+	 */
+	ret = of_parse_phandle_with_args(node, DAI, CELL, 0, &args);
+	if (ret)
+		return simple_ret(priv, ret);
+
+	/* dai_name is not required and may not exist for plat component */
+
+	dlc->of_node = args.np;
+
+	return 0;
+}
+
+static int simple_parse_dai(struct simple_util_priv *priv,
+			    struct device_node *node,
+			    struct snd_soc_dai_link_component *dlc,
+			    int *is_single_link)
+{
+	struct device *dev = simple_priv_to_dev(priv);
+	struct of_phandle_args args;
+	struct snd_soc_dai_link_component resolved_dlc = {};
+	struct snd_soc_dai *dai;
+	const char *fallback_dai_name;
+	int ret;
+
+	if (!node)
+		return 0;
+
+	/*
+	 * Get node via "sound-dai = <&phandle port>"
+	 * It will be used as the of_node for component matching during
+	 * snd_soc_add_pcm_runtime().
+	 */
+	ret = of_parse_phandle_with_args(node, DAI, CELL, 0, &args);
+	if (ret)
+		goto end;
+
+	/*
+	 * Try to find from DAI args
+	 */
+	dai = snd_soc_get_dai_via_args(&args);
+	if (dai) {
+		ret = -ENOMEM;
+		dlc->dai_name = snd_soc_dai_name_get(dai);
+		dlc->dai_args = snd_soc_copy_dai_args(dev, &args);
+		if (!dlc->dai_args)
+			goto end;
+	} else {
+		ret = snd_soc_get_dlc(&args, &resolved_dlc);
+		if (ret < 0)
+			goto end;
+
+		/* Keep fallback dai_name valid across component rebind */
+		fallback_dai_name = resolved_dlc.dai_name;
+		if (fallback_dai_name) {
+			fallback_dai_name = devm_kstrdup_const(dev, fallback_dai_name,
+							       GFP_KERNEL);
+			ret = -ENOMEM;
+			if (!fallback_dai_name) {
+				of_node_put(resolved_dlc.of_node);
+				goto end;
+			}
+		}
+
+		dlc->of_node = resolved_dlc.of_node;
+		dlc->dai_name = fallback_dai_name;
+		dlc->dai_args = resolved_dlc.dai_args;
+	}
+
+	if (is_single_link)
+		*is_single_link = !args.args_count;
+	ret = 0;
+end:
+	return simple_ret(priv, ret);
+}
+
+static void simple_parse_convert(struct device *dev,
+				 struct device_node *np,
+				 struct simple_util_data *adata)
+{
+	struct device_node *top = dev->of_node;
+	struct device_node *node __free(device_node) = of_get_parent(np);
+
+	simple_util_parse_convert(top,  PREFIX, adata);
+	simple_util_parse_convert(node, PREFIX, adata);
+	simple_util_parse_convert(node, NULL,   adata);
+	simple_util_parse_convert(np,   NULL,   adata);
+}
+
+static int simple_parse_node(struct simple_util_priv *priv,
+			     struct device_node *np,
+			     struct link_info *li,
+			     char *prefix,
+			     int *cpu)
+{
+	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 simple_util_dai *dai;
+	int ret;
+
+	if (cpu) {
+		dlc = snd_soc_link_to_cpu(dai_link, 0);
+		dai = simple_props_to_dai_cpu(dai_props, 0);
+	} else {
+		dlc = snd_soc_link_to_codec(dai_link, 0);
+		dai = simple_props_to_dai_codec(dai_props, 0);
+	}
+
+	ret = simple_parse_dai(priv, np, dlc, cpu);
+	if (ret)
+		goto end;
+
+	ret = simple_util_parse_clk(dev, np, dai, dlc);
+	if (ret)
+		goto end;
+
+	ret = simple_util_parse_tdm(np, dai);
+end:
+	return simple_ret(priv, ret);
+}
+
+static int simple_link_init(struct simple_util_priv *priv,
+			    struct device_node *cpu,
+			    struct device_node *codec,
+			    struct link_info *li,
+			    char *prefix, char *name)
+{
+	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 device_node *node __free(device_node) = of_get_parent(cpu);
+	enum snd_soc_trigger_order trigger_start = SND_SOC_TRIGGER_ORDER_DEFAULT;
+	enum snd_soc_trigger_order trigger_stop  = SND_SOC_TRIGGER_ORDER_DEFAULT;
+	bool playback_only = 0, capture_only = 0;
+	int ret;
+
+	ret = simple_util_parse_daifmt(dev, node, codec,
+				       prefix, &dai_link->dai_fmt);
+	if (ret < 0)
+		goto end;
+
+	graph_util_parse_link_direction(top,	&playback_only, &capture_only);
+	graph_util_parse_link_direction(node,	&playback_only, &capture_only);
+	graph_util_parse_link_direction(cpu,	&playback_only, &capture_only);
+	graph_util_parse_link_direction(codec,	&playback_only, &capture_only);
+
+	of_property_read_u32(top,		"mclk-fs", &dai_props->mclk_fs);
+	of_property_read_u32(top,	PREFIX	"mclk-fs", &dai_props->mclk_fs);
+	of_property_read_u32(node,		"mclk-fs", &dai_props->mclk_fs);
+	of_property_read_u32(node,	PREFIX	"mclk-fs", &dai_props->mclk_fs);
+	of_property_read_u32(cpu,		"mclk-fs", &dai_props->mclk_fs);
+	of_property_read_u32(cpu,	PREFIX	"mclk-fs", &dai_props->mclk_fs);
+	of_property_read_u32(codec,		"mclk-fs", &dai_props->mclk_fs);
+	of_property_read_u32(codec,	PREFIX	"mclk-fs", &dai_props->mclk_fs);
+
+	graph_util_parse_trigger_order(priv, top,	&trigger_start, &trigger_stop);
+	graph_util_parse_trigger_order(priv, node,	&trigger_start, &trigger_stop);
+	graph_util_parse_trigger_order(priv, cpu,	&trigger_start, &trigger_stop);
+	graph_util_parse_trigger_order(priv, codec,	&trigger_start, &trigger_stop);
+
+	dai_link->playback_only		= playback_only;
+	dai_link->capture_only		= capture_only;
+
+	dai_link->trigger_start		= trigger_start;
+	dai_link->trigger_stop		= trigger_stop;
+
+	dai_link->init			= simple_util_dai_init;
+	dai_link->ops			= &simple_ops;
+
+	ret = simple_util_set_dailink_name(priv, dai_link, name);
+end:
+	return simple_ret(priv, ret);
+}
+
+static int simple_dai_link_of_dpcm(struct simple_util_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 __free(device_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 = snd_soc_link_to_cpu(dai_link, 0);
+		struct snd_soc_dai_link_component *platforms = snd_soc_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);
+
+		simple_util_canonicalize_cpu(cpus, is_single_links);
+		simple_util_canonicalize_platform(platforms, cpus);
+	} else {
+		struct snd_soc_dai_link_component *codecs = snd_soc_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	= simple_util_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);
+
+	ret = simple_link_init(priv, np, codec, li, prefix, dai_name);
+
+out_put_node:
+	li->link++;
+
+	return simple_ret(priv, ret);
+}
+
+static int simple_dai_link_of(struct simple_util_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 = snd_soc_link_to_cpu(dai_link, 0);
+	struct snd_soc_dai_link_component *codecs = snd_soc_link_to_codec(dai_link, 0);
+	struct snd_soc_dai_link_component *platforms = snd_soc_link_to_platform(dai_link, 0);
+	struct device_node *cpu = NULL;
+	char dai_name[64];
+	char prop[128];
+	char *prefix = "";
+	int ret, single_cpu = 0;
+
+	cpu  = np;
+	struct device_node *node __free(device_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);
+	struct device_node *plat __free(device_node)  = 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 = simple_parse_platform(priv, plat, platforms);
+	if (ret < 0)
+		goto dai_link_of_err;
+
+	snprintf(dai_name, sizeof(dai_name),
+		 "%s-%s", cpus->dai_name, codecs->dai_name);
+
+	simple_util_canonicalize_cpu(cpus, single_cpu);
+	simple_util_canonicalize_platform(platforms, cpus);
+
+	ret = simple_link_init(priv, cpu, codec, li, prefix, dai_name);
+
+dai_link_of_err:
+	li->link++;
+
+	return simple_ret(priv, ret);
+}
+
+static int __simple_for_each_link(struct simple_util_priv *priv,
+			struct link_info *li,
+			int (*func_noml)(struct simple_util_priv *priv,
+					 struct device_node *np,
+					 struct device_node *codec,
+					 struct link_info *li, bool is_top),
+			int (*func_dpcm)(struct simple_util_priv *priv,
+					 struct device_node *np,
+					 struct device_node *codec,
+					 struct link_info *li, bool is_top))
+{
+	struct device *dev = simple_priv_to_dev(priv);
+	struct device_node *top = dev->of_node;
+	struct device_node *node;
+	uintptr_t dpcm_selectable = (uintptr_t)of_device_get_match_data(dev);
+	bool is_top = 0;
+	int ret = 0;
+
+	/* Check if it has dai-link */
+	node = of_get_child_by_name(top, PREFIX "dai-link");
+	if (!node) {
+		node = of_node_get(top);
+		is_top = 1;
+	}
+
+	struct device_node *add_devs __free(device_node) = of_get_child_by_name(top, PREFIX "additional-devs");
+
+	/* loop for all dai-link */
+	do {
+		struct simple_util_data adata;
+		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 */
+		struct device_node *codec __free(device_node) =
+			of_get_child_by_name(node, is_top ? PREFIX "codec" : "codec");
+		if (!codec) {
+			ret = -ENODEV;
+			goto error;
+		}
+		/* get platform */
+		struct device_node *plat __free(device_node) =
+			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_scoped(node, np) {
+			if (np == add_devs)
+				continue;
+			simple_parse_convert(dev, np, &adata);
+		}
+
+		/* loop for all CPU/Codec node */
+		for_each_child_of_node_scoped(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 || simple_util_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)
+				goto error;
+		}
+
+		node = of_get_next_child(top, node);
+	} while (!is_top && node);
+
+error:
+	of_node_put(node);
+
+	return simple_ret(priv, ret);
+}
+
+static int simple_for_each_link(struct simple_util_priv *priv,
+				struct link_info *li,
+				int (*func_noml)(struct simple_util_priv *priv,
+						 struct device_node *np,
+						 struct device_node *codec,
+						 struct link_info *li, bool is_top),
+				int (*func_dpcm)(struct simple_util_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 simple_ret(priv, ret);
+}
+
+static void simple_depopulate_aux(void *data)
+{
+	struct simple_util_priv *priv = data;
+
+	of_platform_depopulate(simple_priv_to_dev(priv));
+}
+
+static int simple_populate_aux(struct simple_util_priv *priv)
+{
+	struct device *dev = simple_priv_to_dev(priv);
+	struct device_node *node __free(device_node) = of_get_child_by_name(dev->of_node, PREFIX "additional-devs");
+	int ret;
+
+	if (!node)
+		return 0;
+
+	ret = of_platform_populate(node, NULL, NULL, dev);
+	if (ret)
+		goto end;
+
+	ret = devm_add_action_or_reset(dev, simple_depopulate_aux, priv);
+end:
+	return simple_ret(priv, ret);
+}
+
+static int simple_parse_of(struct simple_util_priv *priv, struct link_info *li)
+{
+	struct snd_soc_card *card = simple_priv_to_card(priv);
+	int ret;
+
+	ret = simple_util_parse_widgets(card, PREFIX);
+	if (ret < 0)
+		goto end;
+
+	ret = simple_util_parse_routing(card, PREFIX);
+	if (ret < 0)
+		goto end;
+
+	ret = simple_util_parse_pin_switches(card, PREFIX);
+	if (ret < 0)
+		goto end;
+
+	/* 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)
+		goto end;
+
+	ret = simple_util_parse_card_name(priv, PREFIX);
+	if (ret < 0)
+		goto end;
+
+	ret = simple_populate_aux(priv);
+	if (ret < 0)
+		goto end;
+
+	ret = snd_soc_of_parse_aux_devs(card, PREFIX "aux-devs");
+end:
+	return simple_ret(priv, ret);
+}
+
+static int simple_count_noml(struct simple_util_priv *priv,
+			     struct device_node *np,
+			     struct device_node *codec,
+			     struct link_info *li, bool is_top)
+{
+	int ret = -EINVAL;
+
+	if (li->link >= SNDRV_MAX_LINKS)
+		goto end;
+
+	/*
+	 * 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 :: simple_util_canonicalize_platform()
+	 */
+	li->num[li->link].cpus		= 1;
+	li->num[li->link].platforms	= 1;
+
+	li->num[li->link].codecs	= 1;
+
+	li->link += 1;
+	ret = 0;
+end:
+	return simple_ret(priv, ret);
+}
+
+static int simple_count_dpcm(struct simple_util_priv *priv,
+			     struct device_node *np,
+			     struct device_node *codec,
+			     struct link_info *li, bool is_top)
+{
+	int ret = -EINVAL;
+
+	if (li->link >= SNDRV_MAX_LINKS)
+		goto end;
+
+	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 */
+	}
+	ret = 0;
+end:
+	return simple_ret(priv, ret);
+}
+
+static int simple_get_dais_count(struct simple_util_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 simple_util_priv *priv = snd_soc_card_get_drvdata(card);
+	int ret;
+
+	ret = simple_util_init_hp(card, &priv->hp_jack, PREFIX);
+	if (ret < 0)
+		goto end;
+
+	ret = simple_util_init_mic(card, &priv->mic_jack, PREFIX);
+	if (ret < 0)
+		goto end;
+
+	ret = simple_util_init_aux_jacks(priv, PREFIX);
+end:
+	return simple_ret(priv, ret);
+}
+
+static int simple_probe(struct platform_device *pdev)
+{
+	struct simple_util_priv *priv;
+	struct device *dev = &pdev->dev;
+	struct snd_soc_card *card;
+	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";
+
+	ret = -ENOMEM;
+	struct link_info *li __free(kfree) = kzalloc_obj(*li);
+	if (!li)
+		goto end;
+
+	ret = simple_get_dais_count(priv, li);
+	if (ret < 0)
+		goto end;
+
+	ret = -EINVAL;
+	if (!li->link)
+		goto end;
+
+	ret = simple_util_init_priv(priv, li);
+	if (ret < 0)
+		goto end;
+
+	ret = simple_parse_of(priv, li);
+	if (ret < 0) {
+		dev_err_probe(dev, ret, "parse error\n");
+		goto err;
+	}
+
+	snd_soc_card_set_drvdata(card, priv);
+
+	simple_util_debug_info(priv);
+
+	ret = devm_snd_soc_register_card(dev, card);
+	if (ret < 0)
+		goto err;
+
+	return 0;
+err:
+	simple_util_clean_reference(card);
+end:
+	return dev_err_probe(dev, ret, "parse error\n");
+}
+
+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 simple_card = {
+	.driver = {
+		.name = "asoc-simple-card",
+		.pm = &snd_soc_pm_ops,
+		.of_match_table = simple_of_match,
+	},
+	.probe = simple_probe,
+	.remove = simple_util_remove,
+};
+
+module_platform_driver(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>");

linux-7.2.3/sound/soc/generic/test-component.c

@@ -0,0 +1,650 @@
+// 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.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_set_tdm_slot(struct snd_soc_dai *dai,
+				 unsigned int tx_mask, unsigned int rx_mask,
+				 int slots, int slot_width)
+{
+	dev_info(dai->dev, "set tdm slot: tx_mask=0x%08X, rx_mask=0x%08X, slots=%d, slot_width=%d\n",
+		 tx_mask, rx_mask, slots, slot_width);
+	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 const u64 test_dai_formats =
+	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,
+	.set_tdm_slot		= test_dai_set_tdm_slot,
+	.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,
+	.set_tdm_slot		= test_dai_set_tdm_slot,
+	.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,
+	.auto_selectable_formats	= &test_dai_formats,
+	.num_auto_selectable_formats	= 1,
+};
+
+#define STUB_RATES	SNDRV_PCM_RATE_CONTINUOUS
+#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_new(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_free(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 = snd_soc_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;
+	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_kcalloc(dev, num, sizeof(*ddriv), 	GFP_KERNEL);
+	dname	= devm_kcalloc(dev, num, sizeof(*dname), 	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_new			= test_component_pcm_new;
+		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_free	= test_component_pcm_free;
+	}
+
+	i = 0;
+	for_each_of_graph_port(node, port) {
+		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 = 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");