1 files changed, 361 insertions, 413 deletions

diff --git a/sound/soc/generic/audio-graph-card.c b/sound/soc/generic/audio-graph-card.c
index 9ad35d9940fe..7720cf1fd6e1 100644
--- a/sound/soc/generic/audio-graph-card.c
+++ b/sound/soc/generic/audio-graph-card.c
@@ -7,29 +7,44 @@
 //
 // based on ${LINUX}/sound/soc/generic/simple-card.c
 
+#include <linux/cleanup.h>
 #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>
+#include <sound/graph_card.h>
 
 #define DPCM_SELECTABLE 1
 
-#define PREFIX	"audio-graph-card,"
+#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_dapm_context *dapm = w->dapm;
-	struct asoc_simple_priv *priv = snd_soc_card_get_drvdata(dapm->card);
+	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:
@@ -52,508 +67,436 @@ static const struct snd_soc_dapm_widget graph_dapm_widgets[] = {
 };
 
 static const struct snd_soc_ops graph_ops = {
-	.startup	= asoc_simple_startup,
-	.shutdown	= asoc_simple_shutdown,
-	.hw_params	= asoc_simple_hw_params,
+	.startup	= simple_util_startup,
+	.shutdown	= simple_util_shutdown,
+	.hw_params	= simple_util_hw_params,
 };
 
-static int graph_get_dai_id(struct device_node *ep)
+static bool soc_component_is_pcm(struct snd_soc_dai_link_component *dlc)
 {
-	struct device_node *node;
-	struct device_node *endpoint;
-	struct of_endpoint info;
-	int i, id;
-	const u32 *reg;
-	int ret;
+	struct snd_soc_dai *dai = snd_soc_find_dai_with_mutex(dlc);
 
-	/* use driver specified DAI ID if exist */
-	ret = snd_soc_get_dai_id(ep);
-	if (ret != -ENOTSUPP)
-		return ret;
+	if (dai && (dai->component->driver->pcm_construct ||
+		    (dai->driver->ops && dai->driver->ops->pcm_new)))
+		return true;
 
-	/* use endpoint/port reg if exist */
-	ret = of_graph_parse_endpoint(ep, &info);
-	if (ret == 0) {
-		/*
-		 * Because it will count port/endpoint if it doesn't have "reg".
-		 * But, we can't judge whether it has "no reg", or "reg = <0>"
-		 * only of_graph_parse_endpoint().
-		 * We need to check "reg" property
-		 */
-		if (of_get_property(ep,   "reg", NULL))
-			return info.id;
-
-		node = of_get_parent(ep);
-		reg = of_get_property(node, "reg", NULL);
-		of_node_put(node);
-		if (reg)
-			return info.port;
-	}
-	node = of_graph_get_port_parent(ep);
-
-	/*
-	 * Non HDMI sound case, counting port/endpoint on its DT
-	 * is enough. Let's count it.
-	 */
-	i = 0;
-	id = -1;
-	for_each_endpoint_of_node(node, endpoint) {
-		if (endpoint == ep)
-			id = i;
-		i++;
-	}
-
-	of_node_put(node);
-
-	if (id < 0)
-		return -ENODEV;
+	return false;
+}
 
-	return id;
+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 asoc_simple_parse_dai(struct device_node *ep,
-				 struct snd_soc_dai_link_component *dlc,
-				 int *is_single_link)
+static int graph_parse_node(struct simple_util_priv *priv,
+			    struct device_node *ep,
+			    struct link_info *li,
+			    int *cpu)
 {
-	struct device_node *node;
-	struct of_phandle_args args;
+	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 (!ep)
-		return 0;
-
-	node = of_graph_get_port_parent(ep);
-
-	/* Get dai->name */
-	args.np		= node;
-	args.args[0]	= graph_get_dai_id(ep);
-	args.args_count	= (of_graph_get_endpoint_count(node) > 1);
+	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);
+	}
 
-	/*
-	 * FIXME
-	 *
-	 * Here, dlc->dai_name is pointer to CPU/Codec DAI name.
-	 * If user unbinded CPU or Codec driver, but not for Sound Card,
-	 * dlc->dai_name is keeping unbinded CPU or Codec
-	 * driver's pointer.
-	 *
-	 * If user re-bind CPU or Codec driver again, ALSA SoC will try
-	 * to rebind Card via snd_soc_try_rebind_card(), but because of
-	 * above reason, it might can't bind Sound Card.
-	 * Because Sound Card is pointing to released dai_name pointer.
-	 *
-	 * To avoid this rebind Card issue,
-	 * 1) It needs to alloc memory to keep dai_name eventhough
-	 *    CPU or Codec driver was unbinded, or
-	 * 2) user need to rebind Sound Card everytime
-	 *    if he unbinded CPU or Codec.
-	 */
-	ret = snd_soc_get_dai_name(&args, &dlc->dai_name);
+	ret = graph_util_parse_dai(priv, ep, dlc, cpu);
 	if (ret < 0)
-		return ret;
-
-	dlc->of_node = node;
+		goto end;
 
-	if (is_single_link)
-		*is_single_link = of_graph_get_endpoint_count(node) == 1;
+	ret = simple_util_parse_tdm(ep, dai);
+	if (ret < 0)
+		goto end;
 
-	return 0;
+	ret = simple_util_parse_clk(dev, ep, dai, dlc);
+end:
+	return graph_ret(priv, ret);
 }
 
-static void graph_parse_convert(struct device *dev,
-				struct device_node *ep,
-				struct asoc_simple_data *adata)
+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 device_node *port = of_get_parent(ep);
-	struct device_node *ports = of_get_parent(port);
-	struct device_node *node = of_graph_get_port_parent(ep);
-
-	asoc_simple_parse_convert(dev, top,   NULL,   adata);
-	asoc_simple_parse_convert(dev, node,  PREFIX, adata);
-	asoc_simple_parse_convert(dev, ports, NULL,   adata);
-	asoc_simple_parse_convert(dev, port,  NULL,   adata);
-	asoc_simple_parse_convert(dev, ep,    NULL,   adata);
-
-	of_node_put(port);
-	of_node_put(ports);
-	of_node_put(node);
-}
+	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;
 
-static void graph_parse_mclk_fs(struct device_node *top,
-				struct device_node *ep,
-				struct simple_dai_props *props)
-{
-	struct device_node *port	= of_get_parent(ep);
-	struct device_node *ports	= of_get_parent(port);
-	struct device_node *node	= of_graph_get_port_parent(ep);
-
-	of_property_read_u32(top,	"mclk-fs", &props->mclk_fs);
-	of_property_read_u32(ports,	"mclk-fs", &props->mclk_fs);
-	of_property_read_u32(port,	"mclk-fs", &props->mclk_fs);
-	of_property_read_u32(ep,	"mclk-fs", &props->mclk_fs);
-
-	of_node_put(port);
-	of_node_put(ports);
-	of_node_put(node);
+	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 asoc_simple_priv *priv,
+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,
-				  int dup_codec)
+				  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;
-	struct device_node *port;
-	struct device_node *ports;
-	struct device_node *node;
-	struct asoc_simple_dai *dai;
-	struct snd_soc_dai_link_component *cpus = dai_link->cpus;
-	struct snd_soc_dai_link_component *codecs = dai_link->codecs;
+	char dai_name[64];
 	int ret;
 
-	/* Do it all CPU endpoint, and 1st Codec endpoint */
-	if (!li->cpu && dup_codec)
-		return 0;
-
-	port	= of_get_parent(ep);
-	ports	= of_get_parent(port);
-	node	= of_graph_get_port_parent(ep);
-
-	li->link++;
-
 	dev_dbg(dev, "link_of DPCM (%pOF)\n", ep);
 
 	if (li->cpu) {
+		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 */
-		codecs->of_node		= NULL;
-		codecs->dai_name	= "snd-soc-dummy-dai";
-		codecs->name		= "snd-soc-dummy";
 
 		/* FE settings */
 		dai_link->dynamic		= 1;
 		dai_link->dpcm_merged_format	= 1;
 
-		dai =
-		dai_props->cpu_dai	= &priv->dais[li->dais++];
-
-		ret = asoc_simple_parse_cpu(ep, dai_link, &is_single_links);
+		ret = graph_parse_node(priv, cpu_ep, li, &is_single_links);
 		if (ret)
-			goto out_put_node;
-
-		ret = asoc_simple_parse_clk_cpu(dev, ep, dai_link, dai);
-		if (ret < 0)
-			goto out_put_node;
+			goto end;
 
-		ret = asoc_simple_set_dailink_name(dev, dai_link,
-						   "fe.%s",
-						   cpus->dai_name);
-		if (ret < 0)
-			goto out_put_node;
+		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;
+		}
 
-		/* card->num_links includes Codec */
-		asoc_simple_canonicalize_cpu(dai_link, is_single_links);
+		simple_util_canonicalize_cpu(cpus, is_single_links);
+		simple_util_canonicalize_platform(platforms, cpus);
 	} else {
-		struct snd_soc_codec_conf *cconf;
+		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 */
-		cpus->of_node		= NULL;
-		cpus->dai_name		= "snd-soc-dummy-dai";
-		cpus->name		= "snd-soc-dummy";
 
 		/* BE settings */
 		dai_link->no_pcm		= 1;
-		dai_link->be_hw_params_fixup	= asoc_simple_be_hw_params_fixup;
-
-		dai =
-		dai_props->codec_dai	= &priv->dais[li->dais++];
-
-		cconf =
-		dai_props->codec_conf	= &priv->codec_conf[li->conf++];
+		dai_link->be_hw_params_fixup	= simple_util_be_hw_params_fixup;
 
-		ret = asoc_simple_parse_codec(ep, dai_link);
+		ret = graph_parse_node(priv, codec_ep, li, NULL);
 		if (ret < 0)
-			goto out_put_node;
+			goto end;
 
-		ret = asoc_simple_parse_clk_codec(dev, ep, dai_link, dai);
-		if (ret < 0)
-			goto out_put_node;
-
-		ret = asoc_simple_set_dailink_name(dev, dai_link,
-						   "be.%s",
-						   codecs->dai_name);
-		if (ret < 0)
-			goto out_put_node;
+		snprintf(dai_name, sizeof(dai_name),
+			 "be.%pOFP.%s", codecs->of_node, codecs->dai_name);
 
 		/* check "prefix" from top node */
-		snd_soc_of_parse_node_prefix(top, cconf, codecs->of_node,
-					      "prefix");
-		snd_soc_of_parse_node_prefix(node, cconf, codecs->of_node,
-					     PREFIX "prefix");
-		snd_soc_of_parse_node_prefix(ports, cconf, codecs->of_node,
-					     "prefix");
-		snd_soc_of_parse_node_prefix(port, cconf, codecs->of_node,
-					     "prefix");
+		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);
-	graph_parse_mclk_fs(top, ep, dai_props);
-
-	asoc_simple_canonicalize_platform(dai_link);
 
-	ret = asoc_simple_parse_tdm(ep, dai);
-	if (ret)
-		goto out_put_node;
+	ret = graph_link_init(priv, cpu_ep, codec_ep, li, dai_name);
 
-	ret = asoc_simple_parse_daifmt(dev, cpu_ep, codec_ep,
-				       NULL, &dai_link->dai_fmt);
-	if (ret < 0)
-		goto out_put_node;
-
-	dai_link->dpcm_playback		= 1;
-	dai_link->dpcm_capture		= 1;
-	dai_link->ops			= &graph_ops;
-	dai_link->init			= asoc_simple_dai_init;
-
-out_put_node:
-	of_node_put(ports);
-	of_node_put(port);
-	of_node_put(node);
-	return ret;
+	li->link++;
+end:
+	return graph_ret(priv, ret);
 }
 
-static int graph_dai_link_of(struct asoc_simple_priv *priv,
+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 simple_dai_props *dai_props = simple_priv_to_props(priv, li->link);
-	struct device_node *top = dev->of_node;
-	struct asoc_simple_dai *cpu_dai;
-	struct asoc_simple_dai *codec_dai;
-	int ret, single_cpu;
-
-	/* Do it only CPU turn */
-	if (!li->cpu)
-		return 0;
+	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);
 
-	li->link++;
-
-	cpu_dai			=
-	dai_props->cpu_dai	= &priv->dais[li->dais++];
-	codec_dai		=
-	dai_props->codec_dai	= &priv->dais[li->dais++];
-
-	/* Factor to mclk, used in hw_params() */
-	graph_parse_mclk_fs(top, cpu_ep,   dai_props);
-	graph_parse_mclk_fs(top, codec_ep, dai_props);
-
-	ret = asoc_simple_parse_daifmt(dev, cpu_ep, codec_ep,
-				       NULL, &dai_link->dai_fmt);
+	ret = graph_parse_node(priv, cpu_ep, li, &is_single_links);
 	if (ret < 0)
-		return ret;
+		goto end;
 
-	ret = asoc_simple_parse_cpu(cpu_ep, dai_link, &single_cpu);
+	ret = graph_parse_node(priv, codec_ep, li, NULL);
 	if (ret < 0)
-		return ret;
+		goto end;
 
-	ret = asoc_simple_parse_codec(codec_ep, dai_link);
-	if (ret < 0)
-		return ret;
+	snprintf(dai_name, sizeof(dai_name),
+		 "%s-%s", cpus->dai_name, codecs->dai_name);
 
-	ret = asoc_simple_parse_tdm(cpu_ep, cpu_dai);
-	if (ret < 0)
-		return ret;
-
-	ret = asoc_simple_parse_tdm(codec_ep, codec_dai);
-	if (ret < 0)
-		return ret;
+	simple_util_canonicalize_cpu(cpus, is_single_links);
+	simple_util_canonicalize_platform(platforms, cpus);
 
-	ret = asoc_simple_parse_clk_cpu(dev, cpu_ep, dai_link, cpu_dai);
+	ret = graph_link_init(priv, cpu_ep, codec_ep, li, dai_name);
 	if (ret < 0)
-		return ret;
+		goto end;
 
-	ret = asoc_simple_parse_clk_codec(dev, codec_ep, dai_link, codec_dai);
-	if (ret < 0)
-		return ret;
+	li->link++;
+end:
+	return graph_ret(priv, ret);
+}
 
-	ret = asoc_simple_set_dailink_name(dev, dai_link,
-					   "%s-%s",
-					   dai_link->cpus->dai_name,
-					   dai_link->codecs->dai_name);
-	if (ret < 0)
-		return ret;
+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;
 
-	dai_link->ops = &graph_ops;
-	dai_link->init = asoc_simple_dai_init;
+	if (!priv->dpcm_selectable)
+		return false;
 
-	asoc_simple_canonicalize_cpu(dai_link, single_cpu);
-	asoc_simple_canonicalize_platform(dai_link);
+	/*
+	 * 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 0;
+	return false;
 }
 
-static int graph_for_each_link(struct asoc_simple_priv *priv,
+static int __graph_for_each_link(struct simple_util_priv *priv,
 			struct link_info *li,
-			int (*func_noml)(struct asoc_simple_priv *priv,
+			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 asoc_simple_priv *priv,
+			int (*func_dpcm)(struct simple_util_priv *priv,
 					 struct device_node *cpu_ep,
 					 struct device_node *codec_ep,
-					 struct link_info *li, int dup_codec))
+					 struct link_info *li))
 {
 	struct of_phandle_iterator it;
 	struct device *dev = simple_priv_to_dev(priv);
 	struct device_node *node = dev->of_node;
 	struct device_node *cpu_port;
-	struct device_node *cpu_ep;
-	struct device_node *codec_ep;
-	struct device_node *codec_port;
 	struct device_node *codec_port_old = NULL;
-	struct asoc_simple_data adata;
-	uintptr_t dpcm_selectable = (uintptr_t)of_device_get_match_data(dev);
-	int rc, ret;
+	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;
-		cpu_ep	 = NULL;
 
 		/* loop for all CPU endpoint */
-		while (1) {
-			cpu_ep = of_get_next_child(cpu_port, cpu_ep);
-			if (!cpu_ep)
-				break;
-
+		for_each_of_graph_port_endpoint(cpu_port, cpu_ep) {
 			/* get codec */
-			codec_ep = of_graph_get_remote_endpoint(cpu_ep);
-			codec_port = of_get_parent(codec_ep);
+			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);
 
-			/*
-			 * It is DPCM
-			 * if Codec port has many endpoints,
-			 * or has convert-xxx property
-			 */
-			if (dpcm_selectable &&
-			    ((of_get_child_count(codec_port) > 1) ||
-			     adata.convert_rate || adata.convert_channels))
-				ret = func_dpcm(priv, cpu_ep, codec_ep, li,
-						(codec_port_old == codec_port));
+			/* 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
-				ret = func_noml(priv, cpu_ep, codec_ep, li);
-
-			of_node_put(codec_ep);
-			of_node_put(codec_port);
+			} else {
+				if (li->cpu)
+					ret = func_noml(priv, cpu_ep, codec_ep, li);
+			}
 
 			if (ret < 0)
-				return ret;
+				goto end;
 
 			codec_port_old = codec_port;
 		}
 	}
-
-	return 0;
+end:
+	return graph_ret(priv, ret);
 }
 
-static int graph_parse_of(struct asoc_simple_priv *priv)
+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 snd_soc_card *card = simple_priv_to_card(priv);
-	struct link_info li;
 	int ret;
-
-	ret = asoc_simple_parse_widgets(card, NULL);
-	if (ret < 0)
-		return ret;
-
-	ret = asoc_simple_parse_routing(card, NULL);
-	if (ret < 0)
-		return ret;
-
-	memset(&li, 0, sizeof(li));
-	for (li.cpu = 1; li.cpu >= 0; li.cpu--) {
-		/*
-		 * Detect all CPU first, and Detect all Codec 2nd.
-		 *
-		 * In Normal sound case, all DAIs are detected
-		 * as "CPU-Codec".
-		 *
-		 * In DPCM sound case,
-		 * all CPUs   are detected as "CPU-dummy", and
-		 * all Codecs are detected as "dummy-Codec".
-		 * To avoid random sub-device numbering,
-		 * detect "dummy-Codec" in last;
-		 */
-		ret = graph_for_each_link(priv, &li,
-					  graph_dai_link_of,
-					  graph_dai_link_of_dpcm);
+	/*
+	 * 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)
-			return ret;
+			break;
 	}
 
-	return asoc_simple_parse_card_name(card, NULL);
+	return graph_ret(priv, ret);
 }
 
-static int graph_count_noml(struct asoc_simple_priv *priv,
+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 */
-	li->dais += 2; /* 1xCPU + 1xCodec */
 
 	dev_dbg(dev, "Count As Normal\n");
-
-	return 0;
+	ret = 0;
+end:
+	return graph_ret(priv, ret);
 }
 
-static int graph_count_dpcm(struct asoc_simple_priv *priv,
+static int graph_count_dpcm(struct simple_util_priv *priv,
 			    struct device_node *cpu_ep,
 			    struct device_node *codec_ep,
-			    struct link_info *li,
-			    int dup_codec)
+			    struct link_info *li)
 {
 	struct device *dev = simple_priv_to_dev(priv);
+	int ret = -EINVAL;
+
+	if (li->link >= SNDRV_MAX_LINKS)
+		goto end;
 
-	li->link++; /* 1xCPU-dummy */
-	li->dais++; /* 1xCPU */
+	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;
 
-	if (!dup_codec) {
 		li->link++; /* 1xdummy-Codec */
-		li->conf++; /* 1xdummy-Codec */
-		li->dais++; /* 1xCodec */
 	}
 
 	dev_dbg(dev, "Count As DPCM\n");
-
-	return 0;
+	ret = 0;
+end:
+	return graph_ret(priv, ret);
 }
 
-static void graph_get_dais_count(struct asoc_simple_priv *priv,
-				 struct link_info *li)
+static int graph_get_dais_count(struct simple_util_priv *priv,
+				struct link_info *li)
 {
-	struct device *dev = simple_priv_to_dev(priv);
-
 	/*
 	 * link_num :	number of links.
 	 *		CPU-Codec / CPU-dummy / dummy-Codec
@@ -600,75 +543,64 @@ static void graph_get_dais_count(struct asoc_simple_priv *priv,
 	 *	=> 4 DAIs  = 2xCPU + 2xCodec
 	 *	=> 1 ccnf  = 1xdummy-Codec
 	 */
-	graph_for_each_link(priv, li,
-			    graph_count_noml,
-			    graph_count_dpcm);
-	dev_dbg(dev, "link %d, dais %d, ccnf %d\n",
-		li->link, li->dais, li->conf);
+	return graph_for_each_link(priv, li,
+				   graph_count_noml,
+				   graph_count_dpcm);
 }
 
-static int graph_card_probe(struct snd_soc_card *card)
+int audio_graph_parse_of(struct simple_util_priv *priv, struct device *dev)
 {
-	struct asoc_simple_priv *priv = snd_soc_card_get_drvdata(card);
-	int ret;
-
-	ret = asoc_simple_init_hp(card, &priv->hp_jack, NULL);
-	if (ret < 0)
-		return ret;
-
-	ret = asoc_simple_init_mic(card, &priv->mic_jack, NULL);
-	if (ret < 0)
-		return ret;
-
-	return 0;
-}
+	struct snd_soc_card *card = simple_priv_to_card(priv);
+	int ret = -ENOMEM;
 
-static int graph_probe(struct platform_device *pdev)
-{
-	struct asoc_simple_priv *priv;
-	struct device *dev = &pdev->dev;
-	struct snd_soc_card *card;
-	struct link_info li;
-	int ret;
+	struct link_info *li __free(kfree) = kzalloc(sizeof(*li), GFP_KERNEL);
+	if (!li)
+		goto end;
 
-	/* Allocate the private data and the DAI link array */
-	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
-	if (!priv)
-		return -ENOMEM;
+	card->owner = THIS_MODULE;
+	card->dev = dev;
 
-	card = simple_priv_to_card(priv);
-	card->owner		= THIS_MODULE;
-	card->dev		= dev;
-	card->dapm_widgets	= graph_dapm_widgets;
-	card->num_dapm_widgets	= ARRAY_SIZE(graph_dapm_widgets);
-	card->probe		= graph_card_probe;
+	ret = graph_get_dais_count(priv, li);
+	if (ret < 0)
+		goto end;
 
-	memset(&li, 0, sizeof(li));
-	graph_get_dais_count(priv, &li);
-	if (!li.link || !li.dais)
-		return -EINVAL;
+	ret = -EINVAL;
+	if (!li->link)
+		goto end;
 
-	ret = asoc_simple_init_priv(priv, &li);
+	ret = simple_util_init_priv(priv, li);
 	if (ret < 0)
-		return ret;
+		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);
-		return ret;
+		goto end;
 	}
 
-	ret = graph_parse_of(priv);
-	if (ret < 0) {
-		if (ret != -EPROBE_DEFER)
-			dev_err(dev, "parse error %d\n", ret);
+	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);
 
-	asoc_simple_debug_info(priv);
+	simple_util_debug_info(priv);
 
 	ret = devm_snd_soc_register_card(dev, card);
 	if (ret < 0)
@@ -676,16 +608,32 @@ static int graph_probe(struct platform_device *pdev)
 
 	return 0;
 err:
-	asoc_simple_clean_reference(card);
-
-	return ret;
+	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_remove(struct platform_device *pdev)
+static int graph_probe(struct platform_device *pdev)
 {
-	struct snd_soc_card *card = platform_get_drvdata(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 asoc_simple_clean_reference(card);
+	return audio_graph_parse_of(priv, dev);
 }
 
 static const struct of_device_id graph_of_match[] = {
@@ -703,7 +651,7 @@ static struct platform_driver graph_card = {
 		.of_match_table = graph_of_match,
 	},
 	.probe = graph_probe,
-	.remove = graph_remove,
+	.remove = simple_util_remove,
 };
 module_platform_driver(graph_card);