Merge series "ASoC: simple-card-utils: prepare for multi support" from...

Merge series "ASoC: simple-card-utils: prepare for multi support" from Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>:

Hi Mark

This patch-set is for v2 of Multi-CPU/Codec support,
and some cleanups.
v1 had patch-conflict on simple-card / audio-graph with below.
v2 was solved it.

	fa74c223
	("ASoC: simple-card: fix possible uninitialized single_cpu local variable")

I want to add new audio-graph-card2 driver which can support
not only DPCM, but also Multi-CPU/Codec, and Codec2Codec.
And it is also supporting audio-graph-card2 base custom driver.

But before supporting such driver, we need to cleanup existing
simple-card / audio-graph, because these and new driver are
sharing code.

Link: https://lore.kernel.org/r/87wntmod33.wl-kuninori.morimoto.gx@renesas.com
Link: https://lore.kernel.org/r/20210408141639.GA39604@sirena.org.uk

Kuninori Morimoto (12):
  ASoC: simple-card-utils: setup dai_props cpu_dai/codec_dai at initial timing
  ASoC: simple-card-utils: remove li->dais/li->conf
  ASoC: simple-card-utils: use for_each_prop_xxx()
  ASoC: simple-card-utils: remove asoc_simple_parse_xxx()
  ASoC: simple-card-utils: care multi DAI at asoc_simple_clean_reference()
  ASoC: simple-card-utils: indicate dai_fmt if exist
  ASoC: simple-card-utils: indicate missing CPU/Codec numbers for debug
  ASoC: simple-card-utils: add simple_props_to_xxx() macro
  ASoC: simple-card-utils: multi support at asoc_simple_canonicalize_cpu/platform()
  ASoC: simple-card-utils: tidyup debug info for clock
  ASoC: simple-card-utils: tidyup dev_dbg() to use 1 line
  ASoC: simple-card-utils: tidyup asoc_simple_parse_convert()

 include/sound/simple_card_utils.h     | 107 ++++++++++------
 sound/soc/generic/audio-graph-card.c  |  64 ++++------
 sound/soc/generic/simple-card-utils.c | 174 ++++++++++++++++----------
 sound/soc/generic/simple-card.c       |  70 ++++-------
 4 files changed, 226 insertions(+), 189 deletions(-)

--
2.25.1

include/sound/simple_card_utils.h

@@ -74,10 +74,49 @@ struct asoc_simple_priv {
 #define simple_priv_to_dev(priv)	(simple_priv_to_card(priv)->dev)
 #define simple_priv_to_link(priv, i)	(simple_priv_to_card(priv)->dai_link + (i))
 
+#define simple_props_to_dlc_cpu(props, i)	((props)->cpus + i)
+#define simple_props_to_dlc_codec(props, i)	((props)->codecs + i)
+#define simple_props_to_dlc_platform(props, i)	((props)->platforms + i)
+
+#define simple_props_to_dai_cpu(props, i)	((props)->cpu_dai + i)
+#define simple_props_to_dai_codec(props, i)	((props)->codec_dai + i)
+#define simple_props_to_codec_conf(props, i)	((props)->codec_conf + i)
+
+#define for_each_prop_dlc_cpus(props, i, cpu)				\
+	for ((i) = 0;							\
+	     ((i) < (props)->num.cpus) &&				\
+		     ((cpu) = simple_props_to_dlc_cpu(props, i));	\
+	     (i)++)
+#define for_each_prop_dlc_codecs(props, i, codec)			\
+	for ((i) = 0;							\
+	     ((i) < (props)->num.codecs) &&				\
+		     ((codec) = simple_props_to_dlc_codec(props, i));	\
+	     (i)++)
+#define for_each_prop_dlc_platforms(props, i, platform)			\
+	for ((i) = 0;							\
+	     ((i) < (props)->num.platforms) &&				\
+		     ((platform) = simple_props_to_dlc_platform(props, i)); \
+	     (i)++)
+#define for_each_prop_codec_conf(props, i, conf)			\
+	for ((i) = 0;							\
+	     ((i) < (props)->num.codecs) &&				\
+		     (props)->codec_conf &&				\
+		     ((conf) = simple_props_to_codec_conf(props, i));	\
+	     (i)++)
+
+#define for_each_prop_dai_cpu(props, i, cpu)				\
+	for ((i) = 0;							\
+	     ((i) < (props)->num.cpus) &&				\
+		     ((cpu) = simple_props_to_dai_cpu(props, i));	\
+	     (i)++)
+#define for_each_prop_dai_codec(props, i, codec)			\
+	for ((i) = 0;							\
+	     ((i) < (props)->num.codecs) &&				\
+		     ((codec) = simple_props_to_dai_codec(props, i));	\
+	     (i)++)
+
 struct link_info {
-	int dais; /* number of dai  */
 	int link; /* number of link */
-	int conf; /* number of codec_conf */
 	int cpu;  /* turn for CPU / Codec */
 	struct prop_nums num[SNDRV_MINOR_DEVICES];
 };
@@ -94,10 +133,6 @@ int asoc_simple_set_dailink_name(struct device *dev,
 int asoc_simple_parse_card_name(struct snd_soc_card *card,
 				char *prefix);
 
-#define asoc_simple_parse_clk_cpu(dev, node, dai_link, simple_dai)		\
-	asoc_simple_parse_clk(dev, node, simple_dai, dai_link->cpus)
-#define asoc_simple_parse_clk_codec(dev, node, dai_link, simple_dai)	\
-	asoc_simple_parse_clk(dev, node, simple_dai, dai_link->codecs)
 int asoc_simple_parse_clk(struct device *dev,
 			  struct device_node *node,
 			  struct asoc_simple_dai *simple_dai,
@@ -110,29 +145,22 @@ int asoc_simple_dai_init(struct snd_soc_pcm_runtime *rtd);
 int asoc_simple_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
 				   struct snd_pcm_hw_params *params);
 
-#define asoc_simple_parse_cpu(node, dai_link, is_single_link)	\
-	asoc_simple_parse_dai(node, dai_link->cpus, is_single_link)
-#define asoc_simple_parse_codec(node, dai_link)	\
-	asoc_simple_parse_dai(node, dai_link->codecs, NULL)
-#define asoc_simple_parse_platform(node, dai_link)	\
-	asoc_simple_parse_dai(node, dai_link->platforms, NULL)
-
 #define asoc_simple_parse_tdm(np, dai)			\
 	snd_soc_of_parse_tdm_slot(np,	&(dai)->tx_slot_mask,	\
 					&(dai)->rx_slot_mask,	\
 					&(dai)->slots,		\
 					&(dai)->slot_width);
 
-void asoc_simple_canonicalize_platform(struct snd_soc_dai_link *dai_link);
-void asoc_simple_canonicalize_cpu(struct snd_soc_dai_link *dai_link,
+void asoc_simple_canonicalize_platform(struct snd_soc_dai_link_component *platforms,
+				       struct snd_soc_dai_link_component *cpus);
+void asoc_simple_canonicalize_cpu(struct snd_soc_dai_link_component *cpus,
 				  int is_single_links);
 
 int asoc_simple_clean_reference(struct snd_soc_card *card);
 
 void asoc_simple_convert_fixup(struct asoc_simple_data *data,
 				      struct snd_pcm_hw_params *params);
-void asoc_simple_parse_convert(struct device *dev,
-			       struct device_node *np, char *prefix,
+void asoc_simple_parse_convert(struct device_node *np, char *prefix,
 			       struct asoc_simple_data *data);
 
 int asoc_simple_parse_routing(struct snd_soc_card *card,
@@ -162,12 +190,6 @@ static inline void asoc_simple_debug_dai(struct asoc_simple_priv *priv,
 	if (dai->name)
 		dev_dbg(dev, "%s dai name = %s\n",
 			name, dai->name);
-	if (dai->sysclk)
-		dev_dbg(dev, "%s sysclk = %d\n",
-			name, dai->sysclk);
-
-	dev_dbg(dev, "%s direction = %s\n",
-		name, dai->clk_direction ? "OUT" : "IN");
 
 	if (dai->slots)
 		dev_dbg(dev, "%s slots = %d\n", name, dai->slots);
@@ -179,6 +201,12 @@ static inline void asoc_simple_debug_dai(struct asoc_simple_priv *priv,
 		dev_dbg(dev, "%s rx slot mask = %d\n", name, dai->rx_slot_mask);
 	if (dai->clk)
 		dev_dbg(dev, "%s clk %luHz\n", name, clk_get_rate(dai->clk));
+	if (dai->sysclk)
+		dev_dbg(dev, "%s sysclk = %dHz\n",
+			name, dai->sysclk);
+	if (dai->clk || dai->sysclk)
+		dev_dbg(dev, "%s direction = %s\n",
+			name, dai->clk_direction ? "OUT" : "IN");
 }
 
 static inline void asoc_simple_debug_info(struct asoc_simple_priv *priv)
@@ -194,29 +222,32 @@ static inline void asoc_simple_debug_info(struct asoc_simple_priv *priv)
 	for (i = 0; i < card->num_links; i++) {
 		struct simple_dai_props *props = simple_priv_to_props(priv, i);
 		struct snd_soc_dai_link *link = simple_priv_to_link(priv, i);
+		struct asoc_simple_dai *dai;
+		struct snd_soc_codec_conf *cnf;
+		int j;
 
 		dev_dbg(dev, "DAI%d\n", i);
 
-		asoc_simple_debug_dai(priv, "cpu", props->cpu_dai);
-		asoc_simple_debug_dai(priv, "codec", props->codec_dai);
+		dev_dbg(dev, "cpu num = %d\n", link->num_cpus);
+		for_each_prop_dai_cpu(props, j, dai)
+			asoc_simple_debug_dai(priv, "cpu", dai);
+		dev_dbg(dev, "codec num = %d\n", link->num_codecs);
+		for_each_prop_dai_codec(props, j, dai)
+			asoc_simple_debug_dai(priv, "codec", dai);
 
 		if (link->name)
 			dev_dbg(dev, "dai name = %s\n", link->name);
-
+		if (link->dai_fmt)
 			dev_dbg(dev, "dai format = %04x\n", link->dai_fmt);
-
 		if (props->adata.convert_rate)
-			dev_dbg(dev, "convert_rate = %d\n",
-				props->adata.convert_rate);
+			dev_dbg(dev, "convert_rate = %d\n", props->adata.convert_rate);
 		if (props->adata.convert_channels)
-			dev_dbg(dev, "convert_channels = %d\n",
-				props->adata.convert_channels);
-		if (props->codec_conf && props->codec_conf->name_prefix)
-			dev_dbg(dev, "name prefix = %s\n",
-				props->codec_conf->name_prefix);
+			dev_dbg(dev, "convert_channels = %d\n", props->adata.convert_channels);
+		for_each_prop_codec_conf(props, j, cnf)
+			if (cnf->name_prefix)
+				dev_dbg(dev, "name prefix = %s\n", cnf->name_prefix);
 		if (props->mclk_fs)
-			dev_dbg(dev, "mclk-fs = %d\n",
-				props->mclk_fs);
+			dev_dbg(dev, "mclk-fs = %d\n", props->mclk_fs);
 	}
 }
 #else

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

@@ -180,11 +180,11 @@ static void graph_parse_convert(struct device *dev,
 	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);
+	asoc_simple_parse_convert(top,   NULL,   adata);
+	asoc_simple_parse_convert(node,  PREFIX, adata);
+	asoc_simple_parse_convert(ports, NULL,   adata);
+	asoc_simple_parse_convert(port,  NULL,   adata);
+	asoc_simple_parse_convert(ep,    NULL,   adata);
 
 	of_node_put(port);
 	of_node_put(ports);
@@ -226,6 +226,7 @@ static int graph_dai_link_of_dpcm(struct asoc_simple_priv *priv,
 	struct asoc_simple_dai *dai;
 	struct snd_soc_dai_link_component *cpus = dai_link->cpus;
 	struct snd_soc_dai_link_component *codecs = dai_link->codecs;
+	struct snd_soc_dai_link_component *platforms = dai_link->platforms;
 	int ret;
 
 	port	= of_get_parent(ep);
@@ -245,14 +246,13 @@ static int graph_dai_link_of_dpcm(struct asoc_simple_priv *priv,
 		dai_link->dynamic		= 1;
 		dai_link->dpcm_merged_format	= 1;
 
-		dai =
-		dai_props->cpu_dai	= &priv->dais[li->dais++];
+		dai = dai_props->cpu_dai;
 
-		ret = asoc_simple_parse_cpu(ep, dai_link, &is_single_links);
+		ret = asoc_simple_parse_dai(ep, dai_link->cpus, &is_single_links);
 		if (ret)
 			goto out_put_node;
 
-		ret = asoc_simple_parse_clk_cpu(dev, ep, dai_link, dai);
+		ret = asoc_simple_parse_clk(dev, ep, dai, dai_link->cpus);
 		if (ret < 0)
 			goto out_put_node;
 
@@ -277,8 +277,8 @@ static int graph_dai_link_of_dpcm(struct asoc_simple_priv *priv,
 			dai_link->no_pcm = 1;
 
 		/* card->num_links includes Codec */
-		asoc_simple_canonicalize_cpu(dai_link, is_single_links);
-		asoc_simple_canonicalize_platform(dai_link);
+		asoc_simple_canonicalize_cpu(cpus, is_single_links);
+		asoc_simple_canonicalize_platform(platforms, cpus);
 	} else {
 		struct snd_soc_codec_conf *cconf;
 
@@ -288,17 +288,14 @@ static int graph_dai_link_of_dpcm(struct asoc_simple_priv *priv,
 		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++];
+		dai =   dai_props->codec_dai;
+		cconf = dai_props->codec_conf;
 
-		cconf =
-		dai_props->codec_conf	= &priv->codec_conf[li->conf++];
-
-		ret = asoc_simple_parse_codec(ep, dai_link);
+		ret = asoc_simple_parse_dai(ep, dai_link->codecs, NULL);
 		if (ret < 0)
 			goto out_put_node;
 
-		ret = asoc_simple_parse_clk_codec(dev, ep, dai_link, dai);
+		ret = asoc_simple_parse_clk(dev, ep, dai, dai_link->codecs);
 		if (ret < 0)
 			goto out_put_node;
 
@@ -358,19 +355,14 @@ static int graph_dai_link_of(struct asoc_simple_priv *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;
+	struct asoc_simple_dai *cpu_dai = dai_props->cpu_dai;
+	struct asoc_simple_dai *codec_dai = dai_props->codec_dai;
 	int ret, single_cpu = 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);
@@ -380,11 +372,11 @@ static int graph_dai_link_of(struct asoc_simple_priv *priv,
 	if (ret < 0)
 		return ret;
 
-	ret = asoc_simple_parse_cpu(cpu_ep, dai_link, &single_cpu);
+	ret = asoc_simple_parse_dai(cpu_ep, dai_link->cpus, &single_cpu);
 	if (ret < 0)
 		return ret;
 
-	ret = asoc_simple_parse_codec(codec_ep, dai_link);
+	ret = asoc_simple_parse_dai(codec_ep, dai_link->codecs, NULL);
 	if (ret < 0)
 		return ret;
 
@@ -396,11 +388,11 @@ static int graph_dai_link_of(struct asoc_simple_priv *priv,
 	if (ret < 0)
 		return ret;
 
-	ret = asoc_simple_parse_clk_cpu(dev, cpu_ep, dai_link, cpu_dai);
+	ret = asoc_simple_parse_clk(dev, cpu_ep, cpu_dai, dai_link->cpus);
 	if (ret < 0)
 		return ret;
 
-	ret = asoc_simple_parse_clk_codec(dev, codec_ep, dai_link, codec_dai);
+	ret = asoc_simple_parse_clk(dev, codec_ep, codec_dai, dai_link->codecs);
 	if (ret < 0)
 		return ret;
 
@@ -414,8 +406,8 @@ static int graph_dai_link_of(struct asoc_simple_priv *priv,
 	dai_link->ops = &graph_ops;
 	dai_link->init = asoc_simple_dai_init;
 
-	asoc_simple_canonicalize_cpu(dai_link, single_cpu);
-	asoc_simple_canonicalize_platform(dai_link);
+	asoc_simple_canonicalize_cpu(dai_link->cpus, single_cpu);
+	asoc_simple_canonicalize_platform(dai_link->platforms, dai_link->cpus);
 
 	return 0;
 }
@@ -561,7 +553,7 @@ int audio_graph_parse_of(struct asoc_simple_priv *priv, struct device *dev)
 
 	memset(&li, 0, sizeof(li));
 	graph_get_dais_count(priv, &li);
-	if (!li.link || !li.dais)
+	if (!li.link)
 		return -EINVAL;
 
 	ret = asoc_simple_init_priv(priv, &li);
@@ -631,7 +623,6 @@ static int graph_count_noml(struct asoc_simple_priv *priv,
 	li->num[li->link].platforms	= 1;
 
 	li->link += 1; /* 1xCPU-Codec */
-	li->dais += 2; /* 1xCPU + 1xCodec */
 
 	dev_dbg(dev, "Count As Normal\n");
 
@@ -655,13 +646,10 @@ static int graph_count_dpcm(struct asoc_simple_priv *priv,
 		li->num[li->link].platforms	= 1;
 
 		li->link++; /* 1xCPU-dummy */
-		li->dais++; /* 1xCPU */
 	} else {
 		li->num[li->link].codecs	= 1;
 
 		li->link++; /* 1xdummy-Codec */
-		li->conf++; /* 1xdummy-Codec */
-		li->dais++; /* 1xCodec */
 	}
 
 	dev_dbg(dev, "Count As DPCM\n");
@@ -672,8 +660,6 @@ static int graph_count_dpcm(struct asoc_simple_priv *priv,
 static void graph_get_dais_count(struct asoc_simple_priv *priv,
 				 struct link_info *li)
 {
-	struct device *dev = simple_priv_to_dev(priv);
-
 	/*
 	 * link_num :	number of links.
 	 *		CPU-Codec / CPU-dummy / dummy-Codec
@@ -723,8 +709,6 @@ static void graph_get_dais_count(struct asoc_simple_priv *priv,
 	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);
 }
 
 int audio_graph_card_probe(struct snd_soc_card *card)

sound/soc/generic/simple-card-utils.c

@@ -32,8 +32,7 @@ void asoc_simple_convert_fixup(struct asoc_simple_data *data,
 }
 EXPORT_SYMBOL_GPL(asoc_simple_convert_fixup);
 
-void asoc_simple_parse_convert(struct device *dev,
-			       struct device_node *np,
+void asoc_simple_parse_convert(struct device_node *np,
 			       char *prefix,
 			       struct asoc_simple_data *data)
 {
@@ -195,17 +194,37 @@ int asoc_simple_startup(struct snd_pcm_substream *substream)
 {
 	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
 	struct asoc_simple_priv *priv = snd_soc_card_get_drvdata(rtd->card);
-	struct simple_dai_props *dai_props = simple_priv_to_props(priv, rtd->num);
+	struct simple_dai_props *props = simple_priv_to_props(priv, rtd->num);
+	struct asoc_simple_dai *dai;
+	int i1, i2, i;
 	int ret;
 
-	ret = asoc_simple_clk_enable(dai_props->cpu_dai);
+	for_each_prop_dai_cpu(props, i1, dai) {
+		ret = asoc_simple_clk_enable(dai);
 		if (ret)
-		return ret;
+			goto cpu_err;
+	}
 
-	ret = asoc_simple_clk_enable(dai_props->codec_dai);
+	for_each_prop_dai_codec(props, i2, dai) {
+		ret = asoc_simple_clk_enable(dai);
 		if (ret)
-		asoc_simple_clk_disable(dai_props->cpu_dai);
+			goto codec_err;
+	}
 
+	return 0;
+
+codec_err:
+	for_each_prop_dai_codec(props, i, dai) {
+		if (i >= i2)
+			break;
+		asoc_simple_clk_disable(dai);
+	}
+cpu_err:
+	for_each_prop_dai_cpu(props, i, dai) {
+		if (i >= i1)
+			break;
+		asoc_simple_clk_disable(dai);
+	}
 	return ret;
 }
 EXPORT_SYMBOL_GPL(asoc_simple_startup);
@@ -216,17 +235,19 @@ void asoc_simple_shutdown(struct snd_pcm_substream *substream)
 	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
 	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
 	struct asoc_simple_priv *priv = snd_soc_card_get_drvdata(rtd->card);
-	struct simple_dai_props *dai_props =
-		simple_priv_to_props(priv, rtd->num);
+	struct simple_dai_props *props = simple_priv_to_props(priv, rtd->num);
+	struct asoc_simple_dai *dai;
+	int i;
 
-	if (dai_props->mclk_fs) {
+	if (props->mclk_fs) {
 		snd_soc_dai_set_sysclk(codec_dai, 0, 0, SND_SOC_CLOCK_IN);
 		snd_soc_dai_set_sysclk(cpu_dai, 0, 0, SND_SOC_CLOCK_OUT);
 	}
 
-	asoc_simple_clk_disable(dai_props->cpu_dai);
-
-	asoc_simple_clk_disable(dai_props->codec_dai);
+	for_each_prop_dai_cpu(props, i, dai)
+		asoc_simple_clk_disable(dai);
+	for_each_prop_dai_codec(props, i, dai)
+		asoc_simple_clk_disable(dai);
 }
 EXPORT_SYMBOL_GPL(asoc_simple_shutdown);
 
@@ -249,41 +270,41 @@ int asoc_simple_hw_params(struct snd_pcm_substream *substream,
 			  struct snd_pcm_hw_params *params)
 {
 	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
-	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
-	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
+	struct asoc_simple_dai *pdai;
+	struct snd_soc_dai *sdai;
 	struct asoc_simple_priv *priv = snd_soc_card_get_drvdata(rtd->card);
-	struct simple_dai_props *dai_props =
-		simple_priv_to_props(priv, rtd->num);
+	struct simple_dai_props *props = simple_priv_to_props(priv, rtd->num);
 	unsigned int mclk, mclk_fs = 0;
-	int ret;
+	int i, ret;
 
-	if (dai_props->mclk_fs)
-		mclk_fs = dai_props->mclk_fs;
+	if (props->mclk_fs)
+		mclk_fs = props->mclk_fs;
 
 	if (mclk_fs) {
 		mclk = params_rate(params) * mclk_fs;
 
-		ret = asoc_simple_set_clk_rate(dai_props->codec_dai, mclk);
+		for_each_prop_dai_codec(props, i, pdai) {
+			ret = asoc_simple_set_clk_rate(pdai, mclk);
 			if (ret < 0)
 				return ret;
-
-		ret = asoc_simple_set_clk_rate(dai_props->cpu_dai, mclk);
+		}
+		for_each_prop_dai_cpu(props, i, pdai) {
+			ret = asoc_simple_set_clk_rate(pdai, mclk);
 			if (ret < 0)
 				return ret;
-
-		ret = snd_soc_dai_set_sysclk(codec_dai, 0, mclk,
-					     SND_SOC_CLOCK_IN);
+		}
+		for_each_rtd_codec_dais(rtd, i, sdai) {
+			ret = snd_soc_dai_set_sysclk(sdai, 0, mclk, SND_SOC_CLOCK_IN);
 			if (ret && ret != -ENOTSUPP)
-			goto err;
-
-		ret = snd_soc_dai_set_sysclk(cpu_dai, 0, mclk,
-					     SND_SOC_CLOCK_OUT);
+				return ret;
+		}
+		for_each_rtd_cpu_dais(rtd, i, sdai) {
+			ret = snd_soc_dai_set_sysclk(sdai, 0, mclk, SND_SOC_CLOCK_OUT);
 			if (ret && ret != -ENOTSUPP)
-			goto err;
+				return ret;
+		}
 	}
 	return 0;
-err:
-	return ret;
 }
 EXPORT_SYMBOL_GPL(asoc_simple_hw_params);
 
@@ -378,20 +399,22 @@ static int asoc_simple_init_dai_link_params(struct snd_soc_pcm_runtime *rtd,
 int asoc_simple_dai_init(struct snd_soc_pcm_runtime *rtd)
 {
 	struct asoc_simple_priv *priv = snd_soc_card_get_drvdata(rtd->card);
-	struct simple_dai_props *dai_props = simple_priv_to_props(priv, rtd->num);
-	int ret;
+	struct simple_dai_props *props = simple_priv_to_props(priv, rtd->num);
+	struct asoc_simple_dai *dai;
+	int i, ret;
 
-	ret = asoc_simple_init_dai(asoc_rtd_to_codec(rtd, 0),
-				   dai_props->codec_dai);
+	for_each_prop_dai_codec(props, i, dai) {
+		ret = asoc_simple_init_dai(asoc_rtd_to_codec(rtd, i), dai);
 		if (ret < 0)
 			return ret;
-
-	ret = asoc_simple_init_dai(asoc_rtd_to_cpu(rtd, 0),
-				   dai_props->cpu_dai);
+	}
+	for_each_prop_dai_cpu(props, i, dai) {
+		ret = asoc_simple_init_dai(asoc_rtd_to_cpu(rtd, i), dai);
 		if (ret < 0)
 			return ret;
+	}
 
-	ret = asoc_simple_init_dai_link_params(rtd, dai_props);
+	ret = asoc_simple_init_dai_link_params(rtd, props);
 	if (ret < 0)
 		return ret;
 
@@ -399,15 +422,16 @@ int asoc_simple_dai_init(struct snd_soc_pcm_runtime *rtd)
 }
 EXPORT_SYMBOL_GPL(asoc_simple_dai_init);
 
-void asoc_simple_canonicalize_platform(struct snd_soc_dai_link *dai_link)
+void asoc_simple_canonicalize_platform(struct snd_soc_dai_link_component *platforms,
+				       struct snd_soc_dai_link_component *cpus)
 {
 	/* Assumes platform == cpu */
-	if (!dai_link->platforms->of_node)
-		dai_link->platforms->of_node = dai_link->cpus->of_node;
+	if (!platforms->of_node)
+		platforms->of_node = cpus->of_node;
 }
 EXPORT_SYMBOL_GPL(asoc_simple_canonicalize_platform);
 
-void asoc_simple_canonicalize_cpu(struct snd_soc_dai_link *dai_link,
+void asoc_simple_canonicalize_cpu(struct snd_soc_dai_link_component *cpus,
 				  int is_single_links)
 {
 	/*
@@ -420,18 +444,22 @@ void asoc_simple_canonicalize_cpu(struct snd_soc_dai_link *dai_link,
 	 *	fmt_multiple_name()
 	 */
 	if (is_single_links)
-		dai_link->cpus->dai_name = NULL;
+		cpus->dai_name = NULL;
 }
 EXPORT_SYMBOL_GPL(asoc_simple_canonicalize_cpu);
 
 int asoc_simple_clean_reference(struct snd_soc_card *card)
 {
 	struct snd_soc_dai_link *dai_link;
-	int i;
+	struct snd_soc_dai_link_component *cpu;
+	struct snd_soc_dai_link_component *codec;
+	int i, j;
 
 	for_each_card_prelinks(card, i, dai_link) {
-		of_node_put(dai_link->cpus->of_node);
-		of_node_put(dai_link->codecs->of_node);
+		for_each_link_cpus(dai_link, j, cpu)
+			of_node_put(cpu->of_node);
+		for_each_link_codecs(dai_link, j, codec)
+			of_node_put(codec->of_node);
 	}
 	return 0;
 }
@@ -597,7 +625,7 @@ int asoc_simple_init_priv(struct asoc_simple_priv *priv,
 	struct asoc_simple_dai *dais;
 	struct snd_soc_dai_link_component *dlcs;
 	struct snd_soc_codec_conf *cconf = NULL;
-	int i, dai_num = 0, dlc_num = 0;
+	int i, dai_num = 0, dlc_num = 0, cnf_num = 0;
 
 	dai_props = devm_kcalloc(dev, li->link, sizeof(*dai_props), GFP_KERNEL);
 	dai_link  = devm_kcalloc(dev, li->link, sizeof(*dai_link),  GFP_KERNEL);
@@ -613,6 +641,9 @@ int asoc_simple_init_priv(struct asoc_simple_priv *priv,
 
 		dai_num += cc;
 		dlc_num += cc + li->num[i].platforms;
+
+		if (!li->num[i].cpus)
+			cnf_num += li->num[i].codecs;
 	}
 
 	dais = devm_kcalloc(dev, dai_num, sizeof(*dais),      GFP_KERNEL);
@@ -620,12 +651,15 @@ int asoc_simple_init_priv(struct asoc_simple_priv *priv,
 	if (!dais || !dlcs)
 		return -ENOMEM;
 
-	if (li->conf) {
-		cconf = devm_kcalloc(dev, li->conf, sizeof(*cconf), GFP_KERNEL);
+	if (cnf_num) {
+		cconf = devm_kcalloc(dev, cnf_num, sizeof(*cconf), GFP_KERNEL);
 		if (!cconf)
 			return -ENOMEM;
 	}
 
+	dev_dbg(dev, "link %d, dais %d, ccnf %d\n",
+		li->link, dai_num, cnf_num);
+
 	/* dummy CPU/Codec */
 	priv->dummy.of_node	= NULL;
 	priv->dummy.dai_name	= "snd-soc-dummy-dai";
@@ -640,7 +674,7 @@ int asoc_simple_init_priv(struct asoc_simple_priv *priv,
 	card->dai_link		= priv->dai_link;
 	card->num_links		= li->link;
 	card->codec_conf	= cconf;
-	card->num_configs	= li->conf;
+	card->num_configs	= cnf_num;
 
 	for (i = 0; i < li->link; i++) {
 		if (li->num[i].cpus) {
@@ -649,8 +683,10 @@ int asoc_simple_init_priv(struct asoc_simple_priv *priv,
 			dai_link[i].cpus	= dlcs;
 			dai_props[i].num.cpus	=
 			dai_link[i].num_cpus	= li->num[i].cpus;
+			dai_props[i].cpu_dai	= dais;
 
 			dlcs += li->num[i].cpus;
+			dais += li->num[i].cpus;
 		} else {
 			/* DPCM Be's CPU = dummy */
 			dai_props[i].cpus	=
@@ -665,8 +701,16 @@ int asoc_simple_init_priv(struct asoc_simple_priv *priv,
 			dai_link[i].codecs	= dlcs;
 			dai_props[i].num.codecs	=
 			dai_link[i].num_codecs	= li->num[i].codecs;
+			dai_props[i].codec_dai	= dais;
 
 			dlcs += li->num[i].codecs;
+			dais += li->num[i].codecs;
+
+			if (!li->num[i].cpus) {
+				/* DPCM Be's Codec */
+				dai_props[i].codec_conf = cconf;
+				cconf += li->num[i].codecs;
+			}
 		} else {
 			/* DPCM Fe's Codec = dummy */
 			dai_props[i].codecs	=

sound/soc/generic/simple-card.c

@@ -84,10 +84,10 @@ static void simple_parse_convert(struct device *dev,
 	struct device_node *top = dev->of_node;
 	struct device_node *node = of_get_parent(np);
 
-	asoc_simple_parse_convert(dev, top,  PREFIX, adata);
-	asoc_simple_parse_convert(dev, node, PREFIX, adata);
-	asoc_simple_parse_convert(dev, node, NULL,   adata);
-	asoc_simple_parse_convert(dev, np,   NULL,   adata);
+	asoc_simple_parse_convert(top,  PREFIX, adata);
+	asoc_simple_parse_convert(node, PREFIX, adata);
+	asoc_simple_parse_convert(node, NULL,   adata);
+	asoc_simple_parse_convert(np,   NULL,   adata);
 
 	of_node_put(node);
 }
@@ -124,6 +124,7 @@ static int simple_dai_link_of_dpcm(struct asoc_simple_priv *priv,
 	struct asoc_simple_dai *dai;
 	struct snd_soc_dai_link_component *cpus = dai_link->cpus;
 	struct snd_soc_dai_link_component *codecs = dai_link->codecs;
+	struct snd_soc_dai_link_component *platforms = dai_link->platforms;
 	struct device_node *top = dev->of_node;
 	struct device_node *node = of_get_parent(np);
 	char *prefix = "";
@@ -146,14 +147,13 @@ static int simple_dai_link_of_dpcm(struct asoc_simple_priv *priv,
 		dai_link->dynamic		= 1;
 		dai_link->dpcm_merged_format	= 1;
 
-		dai =
-		dai_props->cpu_dai	= &priv->dais[li->dais++];
+		dai = dai_props->cpu_dai;
 
-		ret = asoc_simple_parse_cpu(np, dai_link, &is_single_links);
+		ret = asoc_simple_parse_dai(np, dai_link->cpus, &is_single_links);
 		if (ret)
 			goto out_put_node;
 
-		ret = asoc_simple_parse_clk_cpu(dev, np, dai_link, dai);
+		ret = asoc_simple_parse_clk(dev, np, dai, dai_link->cpus);
 		if (ret < 0)
 			goto out_put_node;
 
@@ -163,8 +163,8 @@ static int simple_dai_link_of_dpcm(struct asoc_simple_priv *priv,
 		if (ret < 0)
 			goto out_put_node;
 
-		asoc_simple_canonicalize_cpu(dai_link, is_single_links);
-		asoc_simple_canonicalize_platform(dai_link);
+		asoc_simple_canonicalize_cpu(cpus, is_single_links);
+		asoc_simple_canonicalize_platform(platforms, cpus);
 	} else {
 		struct snd_soc_codec_conf *cconf;
 
@@ -174,17 +174,14 @@ static int simple_dai_link_of_dpcm(struct asoc_simple_priv *priv,
 		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++];
+		dai   = dai_props->codec_dai;
+		cconf = dai_props->codec_conf;
 
-		cconf =
-		dai_props->codec_conf	= &priv->codec_conf[li->conf++];
-
-		ret = asoc_simple_parse_codec(np, dai_link);
+		ret = asoc_simple_parse_dai(np, dai_link->codecs, NULL);
 		if (ret < 0)
 			goto out_put_node;
 
-		ret = asoc_simple_parse_clk_codec(dev, np, dai_link, dai);
+		ret = asoc_simple_parse_clk(dev, np, dai, dai_link->codecs);
 		if (ret < 0)
 			goto out_put_node;
 
@@ -234,8 +231,8 @@ static int simple_dai_link_of(struct asoc_simple_priv *priv,
 	struct device *dev = simple_priv_to_dev(priv);
 	struct snd_soc_dai_link *dai_link = simple_priv_to_link(priv, li->link);
 	struct simple_dai_props *dai_props = simple_priv_to_props(priv, li->link);
-	struct asoc_simple_dai *cpu_dai;
-	struct asoc_simple_dai *codec_dai;
+	struct asoc_simple_dai *cpu_dai	= dai_props->cpu_dai;
+	struct asoc_simple_dai *codec_dai = dai_props->codec_dai;
 	struct device_node *top = dev->of_node;
 	struct device_node *cpu = NULL;
 	struct device_node *node = NULL;
@@ -257,11 +254,6 @@ static int simple_dai_link_of(struct asoc_simple_priv *priv,
 	snprintf(prop, sizeof(prop), "%splat", prefix);
 	plat = of_get_child_by_name(node, prop);
 
-	cpu_dai			=
-	dai_props->cpu_dai	= &priv->dais[li->dais++];
-	codec_dai		=
-	dai_props->codec_dai	= &priv->dais[li->dais++];
-
 	ret = asoc_simple_parse_daifmt(dev, node, codec,
 				       prefix, &dai_link->dai_fmt);
 	if (ret < 0)
@@ -269,15 +261,15 @@ static int simple_dai_link_of(struct asoc_simple_priv *priv,
 
 	simple_parse_mclk_fs(top, cpu, codec, dai_props, prefix);
 
-	ret = asoc_simple_parse_cpu(cpu, dai_link, &single_cpu);
+	ret = asoc_simple_parse_dai(cpu, dai_link->cpus, &single_cpu);
 	if (ret < 0)
 		goto dai_link_of_err;
 
-	ret = asoc_simple_parse_codec(codec, dai_link);
+	ret = asoc_simple_parse_dai(codec, dai_link->codecs, NULL);
 	if (ret < 0)
 		goto dai_link_of_err;
 
-	ret = asoc_simple_parse_platform(plat, dai_link);
+	ret = asoc_simple_parse_dai(plat, dai_link->platforms, NULL);
 	if (ret < 0)
 		goto dai_link_of_err;
 
@@ -289,11 +281,11 @@ static int simple_dai_link_of(struct asoc_simple_priv *priv,
 	if (ret < 0)
 		goto dai_link_of_err;
 
-	ret = asoc_simple_parse_clk_cpu(dev, cpu, dai_link, cpu_dai);
+	ret = asoc_simple_parse_clk(dev, cpu, cpu_dai, dai_link->cpus);
 	if (ret < 0)
 		goto dai_link_of_err;
 
-	ret = asoc_simple_parse_clk_codec(dev, codec, dai_link, codec_dai);
+	ret = asoc_simple_parse_clk(dev, codec, codec_dai, dai_link->codecs);
 	if (ret < 0)
 		goto dai_link_of_err;
 
@@ -307,8 +299,8 @@ static int simple_dai_link_of(struct asoc_simple_priv *priv,
 	dai_link->ops = &simple_ops;
 	dai_link->init = asoc_simple_dai_init;
 
-	asoc_simple_canonicalize_cpu(dai_link, single_cpu);
-	asoc_simple_canonicalize_platform(dai_link);
+	asoc_simple_canonicalize_cpu(dai_link->cpus, single_cpu);
+	asoc_simple_canonicalize_platform(dai_link->platforms, dai_link->cpus);
 
 dai_link_of_err:
 	of_node_put(plat);
@@ -504,7 +496,6 @@ static int simple_count_noml(struct asoc_simple_priv *priv,
 	li->num[li->link].platforms	= 1;
 
 	li->link += 1;
-	li->dais += 2;
 
 	return 0;
 }
@@ -526,13 +517,10 @@ static int simple_count_dpcm(struct asoc_simple_priv *priv,
 		li->num[li->link].platforms	= 1;
 
 		li->link++; /* CPU-dummy */
-		li->dais++;
 	} else {
 		li->num[li->link].codecs	= 1;
 
 		li->link++; /* dummy-Codec */
-		li->dais++;
-		li->conf++;
 	}
 
 	return 0;
@@ -596,17 +584,12 @@ static void simple_get_dais_count(struct asoc_simple_priv *priv,
 		li->num[0].platforms	= 1;
 
 		li->link = 1;
-		li->dais = 2;
-		li->conf = 0;
 		return;
 	}
 
 	simple_for_each_link(priv, li,
 			     simple_count_noml,
 			     simple_count_dpcm);
-
-	dev_dbg(dev, "link %d, dais %d, ccnf %d\n",
-		li->link, li->dais, li->conf);
 }
 
 static int simple_soc_probe(struct snd_soc_card *card)
@@ -646,7 +629,7 @@ static int asoc_simple_probe(struct platform_device *pdev)
 
 	memset(&li, 0, sizeof(li));
 	simple_get_dais_count(priv, &li);
-	if (!li.link || !li.dais)
+	if (!li.link)
 		return -EINVAL;
 
 	ret = asoc_simple_init_priv(priv, &li);
@@ -670,8 +653,6 @@ static int asoc_simple_probe(struct platform_device *pdev)
 		struct snd_soc_dai_link *dai_link = priv->dai_link;
 		struct simple_dai_props *dai_props = priv->dai_props;
 
-		int dai_idx = 0;
-
 		cinfo = dev->platform_data;
 		if (!cinfo) {
 			dev_err(dev, "no info for asoc-simple-card\n");
@@ -687,9 +668,6 @@ static int asoc_simple_probe(struct platform_device *pdev)
 			return -EINVAL;
 		}
 
-		dai_props->cpu_dai	= &priv->dais[dai_idx++];
-		dai_props->codec_dai	= &priv->dais[dai_idx++];
-
 		cpus			= dai_link->cpus;
 		cpus->dai_name		= cinfo->cpu_dai.name;