[PATCH 0/6] ASoC: merge audio-graph-scu into audio-graph - final step

[PATCH 0/6] ASoC: merge audio-graph-scu into audio-graph - final step

[Kuninori Morimoto]

Hi Mark

audio-graph     card can handle normal sound card, and
audio-graph-scu card can handle DPCM   sound card.
But, we can't use these feature in same time now.

This is final step patches.

Kuninori Morimoto (6):
  ASoC: audio-graph-card: merge audio-graph-scu-card on Doc
  ASoC: audio-graph-card: merge audio-graph-scu-card
  ASoC: audio-graph-card: tidyup mclk-fs method
  ASoC: audio-graph-card: tidyup convert_rate/channel method
  ASoC: audio-graph-scu-card: remove audio-graph-scu-card on Doc
  ASoC: audio-graph-scu-card: remove audio-graph-scu-card

 .../devicetree/bindings/sound/audio-graph-card.txt | 222 +++++++++
 .../bindings/sound/audio-graph-scu-card.txt        | 123 -----
 sound/soc/generic/Kconfig                          |  10 +-
 sound/soc/generic/Makefile                         |   2 -
 sound/soc/generic/audio-graph-card.c               | 397 +++++++++++++---
 sound/soc/generic/audio-graph-scu-card.c           | 501 ---------------------
 6 files changed, 563 insertions(+), 692 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/sound/audio-graph-scu-card.txt
 delete mode 100644 sound/soc/generic/audio-graph-scu-card.c

-- 
2.7.4

[PATCH 1/6] ASoC: audio-graph-card: merge audio-graph-scu-card on Doc

[Kuninori Morimoto]

From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>

audio-graph-card and audio-graph-scu-card are very similar driver,
but the former is supporting normal sound card,
the latter is supporting DPCM sound card.

We couldn't use normal sound and DPCM sound in same sound card by
audio-graph-card.
This patch merges both feature into it on Documentation.
Now we can use both feature on same driver.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
---
 .../devicetree/bindings/sound/audio-graph-card.txt | 222 +++++++++++++++++++++
 1 file changed, 222 insertions(+)

diff --git a/Documentation/devicetree/bindings/sound/audio-graph-card.txt b/Documentation/devicetree/bindings/sound/audio-graph-card.txt
index 7e63e53..3d19c9b 100644
--- a/Documentation/devicetree/bindings/sound/audio-graph-card.txt
+++ b/Documentation/devicetree/bindings/sound/audio-graph-card.txt
@@ -32,7 +32,9 @@ Required properties:
 Optional properties:
 - pa-gpios: GPIO used to control external amplifier.
 
+-----------------------
 Example: Single DAI case
+-----------------------
 
 	sound_card {
 		compatible = "audio-graph-card";
@@ -61,7 +63,9 @@ Example: Single DAI case
 		};
 	};
 
+-----------------------
 Example: Multi DAI case
+-----------------------
 
 	sound-card {
 		compatible = "audio-graph-card";
@@ -130,3 +134,221 @@ Example: Multi DAI case
 		};
 	};
 
+
+-----------------------
+Example: Sampling Rate Conversion
+-----------------------
+
+	sound_card {
+		compatible = "audio-graph-card";
+
+		label = "sound-card";
+		prefix = "codec";
+		routing = "codec Playback", "DAI0 Playback",
+			  "DAI0 Capture",   "codec Capture";
+		convert-rate = <48000>;
+
+		dais = <&cpu_port>;
+	};
+
+	audio-codec {
+		...
+		port {
+			codec_endpoint: endpoint {
+				remote-endpoint = <&cpu_endpoint>;
+			};
+		};
+	};
+
+	dai-controller {
+		...
+		cpu_port: port {
+			cpu_endpoint: endpoint {
+				remote-endpoint = <&codec_endpoint>;
+
+				dai-format = "left_j";
+				...
+			};
+		};
+	};
+
+-----------------------
+Example: 2 CPU 1 Codec (Mixing)
+-----------------------
+
+	sound_card {
+		compatible = "audio-graph-card";
+
+		label = "sound-card";
+		routing = "codec Playback", "DAI0 Playback",
+			  "codec Playback", "DAI1 Playback",
+			  "DAI0 Capture",   "codec Capture";
+
+		dais = <&cpu_port0
+			&cpu_port1>;
+	};
+
+	audio-codec {
+		...
+
+		audio-graph-card,prefix = "codec";
+		audio-graph-card,convert-rate = <48000>;
+		port {
+			codec_endpoint0: endpoint {
+				remote-endpoint = <&cpu_endpoint0>;
+			};
+			codec_endpoint1: endpoint {
+				remote-endpoint = <&cpu_endpoint1>;
+			};
+		};
+	};
+
+	dai-controller {
+		...
+		ports {
+			cpu_port0: port {
+				cpu_endpoint0: endpoint {
+					remote-endpoint = <&codec_endpoint0>;
+
+					dai-format = "left_j";
+					...
+				};
+			};
+			cpu_port1: port {
+				cpu_endpoint1: endpoint {
+					remote-endpoint = <&codec_endpoint1>;
+
+					dai-format = "left_j";
+					...
+				};
+			};
+		};
+	};
+
+-----------------------
+Example: Multi DAI with DPCM
+-----------------------
+
+	CPU0 ------ ak4613
+	CPU1 ------ HDMI
+	CPU2 ------ PCM3168A-p	/* DPCM 1ch/2ch */
+	CPU3 --/		/* DPCM 3ch/4ch */
+	CPU4 --/		/* DPCM 5ch/6ch */
+	CPU5 --/		/* DPCM 7ch/8ch */
+	CPU6 ------ PCM3168A-c
+
+	sound_card: sound {
+		compatible = "audio-graph-card";
+
+		label = "sound-card";
+
+		routing =	"pcm3168a Playback", "DAI2 Playback",
+				"pcm3168a Playback", "DAI3 Playback",
+				"pcm3168a Playback", "DAI4 Playback",
+				"pcm3168a Playback", "DAI5 Playback";
+
+		dais = <&snd_port0	/* ak4613 */
+			&snd_port1	/* HDMI0  */
+			&snd_port2	/* pcm3168a playback 1ch/2ch */
+			&snd_port3	/* pcm3168a playback 3ch/4ch */
+			&snd_port4	/* pcm3168a playback 5ch/6ch */
+			&snd_port5	/* pcm3168a playback 7ch/8ch */
+			&snd_port6	/* pcm3168a capture  */
+			>;
+	};
+
+	ak4613: codec@10 {
+		...
+		port {
+			ak4613_endpoint: endpoint {
+				remote-endpoint = <&rsnd_endpoint0>;
+			};
+		};
+	};
+
+	pcm3168a: audio-codec@44 {
+		...
+		audio-graph-card,prefix = "pcm3168a";
+		audio-graph-card,convert-channels = <8>; /* TDM Split */
+		ports {
+			port@0 {
+				reg = <0>;
+				pcm3168a_endpoint_p1: endpoint@1 {
+					remote-endpoint = <&rsnd_endpoint2>;
+					...
+				};
+				pcm3168a_endpoint_p2: endpoint@2 {
+					remote-endpoint = <&rsnd_endpoint3>;
+					...
+				};
+				pcm3168a_endpoint_p3: endpoint@3 {
+					remote-endpoint = <&rsnd_endpoint4>;
+					...
+				};
+				pcm3168a_endpoint_p4: endpoint@4 {
+					remote-endpoint = <&rsnd_endpoint5>;
+					...
+				};
+			};
+			port@1 {
+				reg = <1>;
+				pcm3168a_endpoint_c: endpoint {
+					remote-endpoint = <&rsnd_endpoint6>;
+					...
+				};
+			};
+		};
+	};
+
+	&sound {
+		ports {
+			rsnd_port0: port@0 {
+				reg = <0>;
+				rsnd_endpoint0: endpoint {
+					remote-endpoint = <&ak4613_endpoint>;
+					...
+				};
+			};
+			rsnd_port1: port@1 {
+				reg = <1>;
+				rsnd_endpoint1: endpoint {
+					remote-endpoint = <&dw_hdmi0_snd_in>;
+					...
+				};
+			};
+			rsnd_port2: port@2 {
+				reg = <2>;
+				rsnd_endpoint2: endpoint {
+					remote-endpoint = <&pcm3168a_endpoint_p1>;
+					...
+				};
+			};
+			rsnd_port3: port@3 {
+				reg = <3>;
+				rsnd_endpoint3: endpoint {
+					remote-endpoint = <&pcm3168a_endpoint_p2>;
+					...
+				};
+			};
+			rsnd_port4: port@4 {
+				reg = <4>;
+				rsnd_endpoint4: endpoint {
+					remote-endpoint = <&pcm3168a_endpoint_p3>;
+					...
+				};
+			};
+			rsnd_port5: port@5 {
+				reg = <5>;
+				rsnd_endpoint5: endpoint {
+					remote-endpoint = <&pcm3168a_endpoint_p4>;
+					...
+			};
+			rsnd_port6: port@6 {
+				reg = <6>;
+				rsnd_endpoint6: endpoint {
+					remote-endpoint = <&pcm3168a_endpoint_c>;
+					...
+				};
+			};
+		};
+	};
-- 
2.7.4

[PATCH 2/6] ASoC: audio-graph-card: merge audio-graph-scu-card

[Kuninori Morimoto]

From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>

audio-graph-card and audio-graph-scu-card are very similar driver,
but the former is supporting normal sound card,
the latter is supporting DPCM sound card.

We couldn't use normal sound and DPCM sound in same sound card by
audio-graph-card.
This patch merges both sound card into it.
Now we can use both feature on same driver.

audio-grap-card is now supporting .compatible = "audio-graph-scu-card".

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
---
 sound/soc/generic/Kconfig            |   1 +
 sound/soc/generic/audio-graph-card.c | 358 ++++++++++++++++++++++++++++++-----
 2 files changed, 313 insertions(+), 46 deletions(-)

diff --git a/sound/soc/generic/Kconfig b/sound/soc/generic/Kconfig
index fa5aff9..53957824 100644
--- a/sound/soc/generic/Kconfig
+++ b/sound/soc/generic/Kconfig
@@ -22,6 +22,7 @@ config SND_AUDIO_GRAPH_CARD
 	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_SCU_CARD
 	tristate "ASoC Audio Graph SCU sound card support"
diff --git a/sound/soc/generic/audio-graph-card.c b/sound/soc/generic/audio-graph-card.c
index 1da9532..5b8e7a1 100644
--- a/sound/soc/generic/audio-graph-card.c
+++ b/sound/soc/generic/audio-graph-card.c
@@ -27,6 +27,8 @@ struct graph_card_data {
 		struct asoc_simple_dai *codec_dai;
 		struct snd_soc_dai_link_component codecs; /* single codec */
 		struct snd_soc_dai_link_component platform;
+		struct asoc_simple_card_data adata;
+		struct snd_soc_codec_conf *codec_conf;
 		unsigned int mclk_fs;
 	} *dai_props;
 	unsigned int mclk_fs;
@@ -34,6 +36,8 @@ struct graph_card_data {
 	struct asoc_simple_jack mic_jack;
 	struct snd_soc_dai_link *dai_link;
 	struct asoc_simple_dai *dais;
+	struct asoc_simple_card_data adata;
+	struct snd_soc_codec_conf *codec_conf;
 	struct gpio_desc *pa_gpio;
 };
 
@@ -42,6 +46,8 @@ struct graph_card_data {
 #define graph_priv_to_dev(priv) (graph_priv_to_card(priv)->dev)
 #define graph_priv_to_link(priv, i) (graph_priv_to_card(priv)->dai_link + (i))
 
+#define PREFIX	"audio-graph-card,"
+
 static int asoc_graph_card_outdrv_event(struct snd_soc_dapm_widget *w,
 					struct snd_kcontrol *kcontrol,
 					int event)
@@ -156,7 +162,140 @@ static int asoc_graph_card_dai_init(struct snd_soc_pcm_runtime *rtd)
 	return 0;
 }
 
-static int asoc_graph_card_dai_link_of(struct device_node *cpu_port,
+static int asoc_graph_card_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
+					      struct snd_pcm_hw_params *params)
+{
+	struct graph_card_data *priv = snd_soc_card_get_drvdata(rtd->card);
+	struct graph_dai_props *dai_props = graph_priv_to_props(priv, rtd->num);
+
+	asoc_simple_card_convert_fixup(&dai_props->adata, params);
+
+	/* overwrite by top level adata if exist */
+	asoc_simple_card_convert_fixup(&priv->adata, params);
+
+	return 0;
+}
+
+static int asoc_graph_card_dai_link_of_dpcm(struct device_node *cpu_ep,
+					    struct device_node *codec_ep,
+					    struct graph_card_data *priv,
+					    int *dai_idx, int link_idx,
+					    int *conf_idx, int is_cpu)
+{
+	struct device *dev = graph_priv_to_dev(priv);
+	struct snd_soc_dai_link *dai_link = graph_priv_to_link(priv, link_idx);
+	struct graph_dai_props *dai_props = graph_priv_to_props(priv, link_idx);
+	struct snd_soc_card *card = graph_priv_to_card(priv);
+	struct device_node *ep = is_cpu ? cpu_ep : codec_ep;
+	struct device_node *node = of_graph_get_port_parent(ep);
+	struct asoc_simple_dai *dai;
+	int ret;
+
+	dev_dbg(dev, "link_of DPCM (for %s)\n", is_cpu ? "CPU" : "Codec");
+
+	if (is_cpu) {
+		struct snd_soc_dai_link_component *codecs;
+
+		/* BE is dummy */
+		codecs			= dai_link->codecs;
+		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[(*dai_idx)++];
+
+		ret = asoc_simple_card_parse_graph_cpu(ep, dai_link);
+		if (ret)
+			return ret;
+
+		ret = asoc_simple_card_parse_clk_cpu(dev, ep, dai_link, dai);
+		if (ret < 0)
+			return ret;
+
+		ret = asoc_simple_card_set_dailink_name(dev, dai_link,
+							"fe.%s",
+							dai_link->cpu_dai_name);
+		if (ret < 0)
+			return ret;
+
+		/* card->num_links includes Codec */
+		asoc_simple_card_canonicalize_cpu(dai_link,
+			of_graph_get_endpoint_count(dai_link->cpu_of_node) == 1);
+	} else {
+		struct snd_soc_codec_conf *cconf;
+
+		/* FE is dummy */
+		dai_link->cpu_of_node		= NULL;
+		dai_link->cpu_dai_name		= "snd-soc-dummy-dai";
+		dai_link->cpu_name		= "snd-soc-dummy";
+
+		/* BE settings */
+		dai_link->no_pcm		= 1;
+		dai_link->be_hw_params_fixup	= asoc_graph_card_be_hw_params_fixup;
+
+		dai =
+		dai_props->codec_dai	= &priv->dais[(*dai_idx)++];
+
+		cconf =
+		dai_props->codec_conf	= &priv->codec_conf[(*conf_idx)++];
+
+		ret = asoc_simple_card_parse_graph_codec(ep, dai_link);
+		if (ret < 0)
+			return ret;
+
+		ret = asoc_simple_card_parse_clk_codec(dev, ep, dai_link, dai);
+		if (ret < 0)
+			return ret;
+
+		ret = asoc_simple_card_set_dailink_name(dev, dai_link,
+							"be.%s",
+							dai_link->codecs->dai_name);
+		if (ret < 0)
+			return ret;
+
+		/* check "prefix" from top node */
+		snd_soc_of_parse_audio_prefix(card, cconf,
+					      dai_link->codecs->of_node,
+					      "prefix");
+		/* check "prefix" from each node if top doesn't have */
+		if (!cconf->of_node)
+			snd_soc_of_parse_node_prefix(node, cconf,
+						     dai_link->codecs->of_node,
+						     PREFIX "prefix");
+	}
+
+	asoc_simple_card_parse_convert(dev, node, PREFIX, &dai_props->adata);
+
+	ret = asoc_simple_card_of_parse_tdm(ep, dai);
+	if (ret)
+		return ret;
+
+	ret = asoc_simple_card_canonicalize_dailink(dai_link);
+	if (ret < 0)
+		return ret;
+
+	of_property_read_u32(ep,   "mclk-fs", &dai_props->mclk_fs);
+
+	ret = asoc_simple_card_parse_daifmt(dev, cpu_ep, codec_ep,
+					    NULL, &dai_link->dai_fmt);
+	if (ret < 0)
+		return ret;
+
+	dai_link->dpcm_playback		= 1;
+	dai_link->dpcm_capture		= 1;
+	dai_link->ops			= &asoc_graph_card_ops;
+	dai_link->init			= asoc_graph_card_dai_init;
+
+	return 0;
+}
+
+static int asoc_graph_card_dai_link_of(struct device_node *cpu_ep,
+					struct device_node *codec_ep,
 					struct graph_card_data *priv,
 					int *dai_idx, int link_idx)
 {
@@ -165,10 +304,10 @@ static int asoc_graph_card_dai_link_of(struct device_node *cpu_port,
 	struct graph_dai_props *dai_props = graph_priv_to_props(priv, link_idx);
 	struct asoc_simple_dai *cpu_dai;
 	struct asoc_simple_dai *codec_dai;
-	struct device_node *cpu_ep    = of_get_next_child(cpu_port, NULL);
-	struct device_node *codec_ep = of_graph_get_remote_endpoint(cpu_ep);
 	int ret;
 
+	dev_dbg(dev, "link_of\n");
+
 	cpu_dai			=
 	dai_props->cpu_dai	= &priv->dais[(*dai_idx)++];
 	codec_dai		=
@@ -177,45 +316,45 @@ static int asoc_graph_card_dai_link_of(struct device_node *cpu_port,
 	ret = asoc_simple_card_parse_daifmt(dev, cpu_ep, codec_ep,
 					    NULL, &dai_link->dai_fmt);
 	if (ret < 0)
-		goto dai_link_of_err;
+		return ret;
 
 	of_property_read_u32(cpu_ep,   "mclk-fs", &dai_props->mclk_fs);
 	of_property_read_u32(codec_ep, "mclk-fs", &dai_props->mclk_fs);
 
 	ret = asoc_simple_card_parse_graph_cpu(cpu_ep, dai_link);
 	if (ret < 0)
-		goto dai_link_of_err;
+		return ret;
 
 	ret = asoc_simple_card_parse_graph_codec(codec_ep, dai_link);
 	if (ret < 0)
-		goto dai_link_of_err;
+		return ret;
 
 	ret = asoc_simple_card_of_parse_tdm(cpu_ep, cpu_dai);
 	if (ret < 0)
-		goto dai_link_of_err;
+		return ret;
 
 	ret = asoc_simple_card_of_parse_tdm(codec_ep, codec_dai);
 	if (ret < 0)
-		goto dai_link_of_err;
+		return ret;
 
 	ret = asoc_simple_card_parse_clk_cpu(dev, cpu_ep, dai_link, cpu_dai);
 	if (ret < 0)
-		goto dai_link_of_err;
+		return ret;
 
 	ret = asoc_simple_card_parse_clk_codec(dev, codec_ep, dai_link, codec_dai);
 	if (ret < 0)
-		goto dai_link_of_err;
+		return ret;
 
 	ret = asoc_simple_card_canonicalize_dailink(dai_link);
 	if (ret < 0)
-		goto dai_link_of_err;
+		return ret;
 
 	ret = asoc_simple_card_set_dailink_name(dev, dai_link,
 						"%s-%s",
 						dai_link->cpu_dai_name,
 						dai_link->codecs->dai_name);
 	if (ret < 0)
-		goto dai_link_of_err;
+		return ret;
 
 	dai_link->ops = &asoc_graph_card_ops;
 	dai_link->init = asoc_graph_card_dai_init;
@@ -223,11 +362,7 @@ static int asoc_graph_card_dai_link_of(struct device_node *cpu_port,
 	asoc_simple_card_canonicalize_cpu(dai_link,
 		of_graph_get_endpoint_count(dai_link->cpu_of_node) == 1);
 
-dai_link_of_err:
-	of_node_put(cpu_ep);
-	of_node_put(codec_ep);
-
-	return ret;
+	return 0;
 }
 
 static int asoc_graph_card_parse_of(struct graph_card_data *priv)
@@ -236,8 +371,14 @@ static int asoc_graph_card_parse_of(struct graph_card_data *priv)
 	struct device *dev = graph_priv_to_dev(priv);
 	struct snd_soc_card *card = graph_priv_to_card(priv);
 	struct device_node *node = dev->of_node;
+	struct device_node *cpu_port;
+	struct device_node *cpu_ep		= NULL;
+	struct device_node *codec_ep		= NULL;
+	struct device_node *codec_port		= NULL;
+	struct device_node *codec_port_old	= NULL;
 	int rc, ret;
-	int link_idx, dai_idx;
+	int link_idx, dai_idx, conf_idx;
+	int cpu;
 
 	ret = asoc_simple_card_of_parse_widgets(card, NULL);
 	if (ret < 0)
@@ -247,35 +388,153 @@ static int asoc_graph_card_parse_of(struct graph_card_data *priv)
 	if (ret < 0)
 		return ret;
 
+	asoc_simple_card_parse_convert(dev, node, NULL, &priv->adata);
+
 	/* Factor to mclk, used in hw_params() */
 	of_property_read_u32(node, "mclk-fs", &priv->mclk_fs);
 
-	link_idx = 0;
-	dai_idx = 0;
-	of_for_each_phandle(&it, rc, node, "dais", NULL, 0) {
-		ret = asoc_graph_card_dai_link_of(it.node, priv,
-						  &dai_idx, link_idx++);
-		if (ret < 0) {
-			of_node_put(it.node);
-
-			return ret;
+	link_idx	= 0;
+	dai_idx		= 0;
+	conf_idx	= 0;
+	codec_port_old	= NULL;
+	for (cpu = 1; cpu >= 0; 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;
+		 */
+		of_for_each_phandle(&it, rc, node, "dais", NULL, 0) {
+			cpu_port	= it.node;
+			cpu_ep		= of_get_next_child(cpu_port, NULL);
+			codec_ep	= of_graph_get_remote_endpoint(cpu_ep);
+			codec_port	= of_get_parent(codec_ep);
+
+			of_node_put(cpu_ep);
+			of_node_put(cpu_port);
+			of_node_put(codec_ep);
+			of_node_put(codec_port);
+			it.node = NULL;
+
+			dev_dbg(dev, "%pOFf <-> %pOFf\n", cpu_port, codec_port);
+
+			if (of_get_child_count(codec_port) > 1) {
+				/*
+				 * for DPCM sound
+				 */
+				if (!cpu) {
+					if (codec_port_old == codec_port)
+						continue;
+					codec_port_old = codec_port;
+				}
+				ret = asoc_graph_card_dai_link_of_dpcm(
+					cpu_ep, codec_ep, priv,
+					&dai_idx, link_idx++,
+					&conf_idx, cpu);
+			} else if (cpu) {
+				/*
+				 * for Normal sound
+				 */
+				ret = asoc_graph_card_dai_link_of(
+					cpu_ep, codec_ep, priv,
+					&dai_idx, link_idx++);
+			}
+			if (ret < 0)
+				return ret;
 		}
 	}
 
 	return asoc_simple_card_parse_card_name(card, NULL);
 }
 
-static int asoc_graph_get_dais_count(struct device *dev)
+static void asoc_graph_get_dais_count(struct device *dev,
+				      int *link_num,
+				      int *dais_num,
+				      int *ccnf_num)
 {
 	struct of_phandle_iterator it;
 	struct device_node *node = dev->of_node;
-	int count = 0;
+	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;
+	struct device_node *codec_port_old2;
 	int rc;
 
-	of_for_each_phandle(&it, rc, node, "dais", NULL, 0)
-		count++;
+	/*
+	 * 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
+	 */
+	codec_port_old = NULL;
+	codec_port_old2 = NULL;
+	of_for_each_phandle(&it, rc, node, "dais", NULL, 0) {
+		cpu_port = it.node;
+		cpu_ep   = of_get_next_child(cpu_port, NULL);
+		codec_ep = of_graph_get_remote_endpoint(cpu_ep);
+		codec_port = of_get_parent(codec_ep);
+
+		of_node_put(cpu_ep);
+		of_node_put(cpu_port);
+		of_node_put(codec_ep);
+		of_node_put(codec_port);
+		it.node = NULL;
+
+		(*link_num)++;
+		(*dais_num)++;
+
+		if (codec_port_old == codec_port) {
+			if (codec_port_old2 != codec_port_old) {
+				(*link_num)++;
+				(*ccnf_num)++;
+			}
+
+			codec_port_old2 = codec_port_old;
+			continue;
+		}
 
-	return count;
+		(*dais_num)++;
+		codec_port_old = codec_port;
+	}
 }
 
 static int asoc_graph_soc_card_probe(struct snd_soc_card *card)
@@ -302,20 +561,23 @@ static int asoc_graph_card_probe(struct platform_device *pdev)
 	struct asoc_simple_dai *dais;
 	struct device *dev = &pdev->dev;
 	struct snd_soc_card *card;
-	int num, ret, i;
+	struct snd_soc_codec_conf *cconf;
+	int lnum = 0, dnum = 0, cnum = 0;
+	int ret, i;
 
 	/* Allocate the private data and the DAI link array */
 	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
 	if (!priv)
 		return -ENOMEM;
 
-	num = asoc_graph_get_dais_count(dev);
-	if (num == 0)
+	asoc_graph_get_dais_count(dev, &lnum, &dnum, &cnum);
+	if (!lnum || !dnum)
 		return -EINVAL;
 
-	dai_props = devm_kcalloc(dev, num, sizeof(*dai_props), GFP_KERNEL);
-	dai_link  = devm_kcalloc(dev, num, sizeof(*dai_link), GFP_KERNEL);
-	dais      = devm_kcalloc(dev, num * 2, sizeof(*dais), GFP_KERNEL);
+	dai_props = devm_kcalloc(dev, lnum, sizeof(*dai_props), GFP_KERNEL);
+	dai_link  = devm_kcalloc(dev, lnum, sizeof(*dai_link),  GFP_KERNEL);
+	dais      = devm_kcalloc(dev, dnum, sizeof(*dais),      GFP_KERNEL);
+	cconf     = devm_kcalloc(dev, cnum, sizeof(*cconf),     GFP_KERNEL);
 	if (!dai_props || !dai_link || !dais)
 		return -ENOMEM;
 
@@ -325,7 +587,7 @@ static int asoc_graph_card_probe(struct platform_device *pdev)
 	 * see
 	 *	soc-core.c :: snd_soc_init_multicodec()
 	 */
-	for (i = 0; i < num; i++) {
+	for (i = 0; i < lnum; i++) {
 		dai_link[i].codecs	= &dai_props[i].codecs;
 		dai_link[i].num_codecs	= 1;
 		dai_link[i].platform	= &dai_props[i].platform;
@@ -341,16 +603,19 @@ static int asoc_graph_card_probe(struct platform_device *pdev)
 	priv->dai_props			= dai_props;
 	priv->dai_link			= dai_link;
 	priv->dais			= dais;
+	priv->codec_conf		= cconf;
 
 	/* Init snd_soc_card */
 	card = graph_priv_to_card(priv);
-	card->owner	= THIS_MODULE;
-	card->dev	= dev;
-	card->dai_link	= dai_link;
-	card->num_links	= num;
-	card->dapm_widgets = asoc_graph_card_dapm_widgets;
-	card->num_dapm_widgets = ARRAY_SIZE(asoc_graph_card_dapm_widgets);
-	card->probe	= asoc_graph_soc_card_probe;
+	card->owner		= THIS_MODULE;
+	card->dev		= dev;
+	card->dai_link		= dai_link;
+	card->num_links		= lnum;
+	card->dapm_widgets	= asoc_graph_card_dapm_widgets;
+	card->num_dapm_widgets	= ARRAY_SIZE(asoc_graph_card_dapm_widgets);
+	card->probe		= asoc_graph_soc_card_probe;
+	card->codec_conf	= cconf;
+	card->num_configs	= cnum;
 
 	ret = asoc_graph_card_parse_of(priv);
 	if (ret < 0) {
@@ -381,6 +646,7 @@ static int asoc_graph_card_remove(struct platform_device *pdev)
 
 static const struct of_device_id asoc_graph_of_match[] = {
 	{ .compatible = "audio-graph-card", },
+	{ .compatible = "audio-graph-scu-card", },
 	{},
 };
 MODULE_DEVICE_TABLE(of, asoc_graph_of_match);
-- 
2.7.4

[PATCH 3/6] ASoC: audio-graph-card: tidyup mclk-fs method

[Kuninori Morimoto]

From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>

Current audio-graph-card is handling "mclk-fs" by many way.
But, it is not useful and readable.
We want to do is that allow having mclk-fs everywere.
This patch support it.
It will be overwrote if lower node has it.

sound {
	mclk-fs = <xxx>; // initial
};

codec {
	ports {
		mclk-fs = <xxx>; // overwrite
		port {
			mclk-fs = <xxx>; // overwrite
			endpoint {
				mclk-fs = <xxx>; // overwrite
			};
		};
	};
};

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
---
 sound/soc/generic/audio-graph-card.c | 52 ++++++++++++++++++++++++------------
 1 file changed, 35 insertions(+), 17 deletions(-)

diff --git a/sound/soc/generic/audio-graph-card.c b/sound/soc/generic/audio-graph-card.c
index 5b8e7a1..efa6be6 100644
--- a/sound/soc/generic/audio-graph-card.c
+++ b/sound/soc/generic/audio-graph-card.c
@@ -31,7 +31,6 @@ struct graph_card_data {
 		struct snd_soc_codec_conf *codec_conf;
 		unsigned int mclk_fs;
 	} *dai_props;
-	unsigned int mclk_fs;
 	struct asoc_simple_jack hp_jack;
 	struct asoc_simple_jack mic_jack;
 	struct snd_soc_dai_link *dai_link;
@@ -115,9 +114,7 @@ static int asoc_graph_card_hw_params(struct snd_pcm_substream *substream,
 	unsigned int mclk, mclk_fs = 0;
 	int ret = 0;
 
-	if (priv->mclk_fs)
-		mclk_fs = priv->mclk_fs;
-	else if (dai_props->mclk_fs)
+	if (dai_props->mclk_fs)
 		mclk_fs = dai_props->mclk_fs;
 
 	if (mclk_fs) {
@@ -176,7 +173,8 @@ static int asoc_graph_card_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
 	return 0;
 }
 
-static int asoc_graph_card_dai_link_of_dpcm(struct device_node *cpu_ep,
+static int asoc_graph_card_dai_link_of_dpcm(struct device_node *top,
+					    struct device_node *cpu_ep,
 					    struct device_node *codec_ep,
 					    struct graph_card_data *priv,
 					    int *dai_idx, int link_idx,
@@ -187,12 +185,21 @@ static int asoc_graph_card_dai_link_of_dpcm(struct device_node *cpu_ep,
 	struct graph_dai_props *dai_props = graph_priv_to_props(priv, link_idx);
 	struct snd_soc_card *card = graph_priv_to_card(priv);
 	struct device_node *ep = is_cpu ? cpu_ep : codec_ep;
+	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);
 	struct asoc_simple_dai *dai;
 	int ret;
 
 	dev_dbg(dev, "link_of DPCM (for %s)\n", is_cpu ? "CPU" : "Codec");
 
+	of_property_read_u32(top,   "mclk-fs", &dai_props->mclk_fs);
+	of_property_read_u32(ports, "mclk-fs", &dai_props->mclk_fs);
+	of_property_read_u32(port,  "mclk-fs", &dai_props->mclk_fs);
+	of_property_read_u32(ep,    "mclk-fs", &dai_props->mclk_fs);
+	of_node_put(ports);
+	of_node_put(port);
+
 	if (is_cpu) {
 		struct snd_soc_dai_link_component *codecs;
 
@@ -279,8 +286,6 @@ static int asoc_graph_card_dai_link_of_dpcm(struct device_node *cpu_ep,
 	if (ret < 0)
 		return ret;
 
-	of_property_read_u32(ep,   "mclk-fs", &dai_props->mclk_fs);
-
 	ret = asoc_simple_card_parse_daifmt(dev, cpu_ep, codec_ep,
 					    NULL, &dai_link->dai_fmt);
 	if (ret < 0)
@@ -294,7 +299,8 @@ static int asoc_graph_card_dai_link_of_dpcm(struct device_node *cpu_ep,
 	return 0;
 }
 
-static int asoc_graph_card_dai_link_of(struct device_node *cpu_ep,
+static int asoc_graph_card_dai_link_of(struct device_node *top,
+					struct device_node *cpu_ep,
 					struct device_node *codec_ep,
 					struct graph_card_data *priv,
 					int *dai_idx, int link_idx)
@@ -302,6 +308,10 @@ static int asoc_graph_card_dai_link_of(struct device_node *cpu_ep,
 	struct device *dev = graph_priv_to_dev(priv);
 	struct snd_soc_dai_link *dai_link = graph_priv_to_link(priv, link_idx);
 	struct graph_dai_props *dai_props = graph_priv_to_props(priv, link_idx);
+	struct device_node *cpu_port = of_get_parent(cpu_ep);
+	struct device_node *codec_port = of_get_parent(codec_ep);
+	struct device_node *cpu_ports = of_get_parent(cpu_port);
+	struct device_node *codec_ports = of_get_parent(codec_port);
 	struct asoc_simple_dai *cpu_dai;
 	struct asoc_simple_dai *codec_dai;
 	int ret;
@@ -313,14 +323,24 @@ static int asoc_graph_card_dai_link_of(struct device_node *cpu_ep,
 	codec_dai		=
 	dai_props->codec_dai	= &priv->dais[(*dai_idx)++];
 
+	/* Factor to mclk, used in hw_params() */
+	of_property_read_u32(top,         "mclk-fs", &dai_props->mclk_fs);
+	of_property_read_u32(cpu_ports,   "mclk-fs", &dai_props->mclk_fs);
+	of_property_read_u32(codec_ports, "mclk-fs", &dai_props->mclk_fs);
+	of_property_read_u32(cpu_port,    "mclk-fs", &dai_props->mclk_fs);
+	of_property_read_u32(codec_port,  "mclk-fs", &dai_props->mclk_fs);
+	of_property_read_u32(cpu_ep,      "mclk-fs", &dai_props->mclk_fs);
+	of_property_read_u32(codec_ep,    "mclk-fs", &dai_props->mclk_fs);
+	of_node_put(cpu_port);
+	of_node_put(cpu_ports);
+	of_node_put(codec_port);
+	of_node_put(codec_ports);
+
 	ret = asoc_simple_card_parse_daifmt(dev, cpu_ep, codec_ep,
 					    NULL, &dai_link->dai_fmt);
 	if (ret < 0)
 		return ret;
 
-	of_property_read_u32(cpu_ep,   "mclk-fs", &dai_props->mclk_fs);
-	of_property_read_u32(codec_ep, "mclk-fs", &dai_props->mclk_fs);
-
 	ret = asoc_simple_card_parse_graph_cpu(cpu_ep, dai_link);
 	if (ret < 0)
 		return ret;
@@ -370,7 +390,8 @@ static int asoc_graph_card_parse_of(struct graph_card_data *priv)
 	struct of_phandle_iterator it;
 	struct device *dev = graph_priv_to_dev(priv);
 	struct snd_soc_card *card = graph_priv_to_card(priv);
-	struct device_node *node = dev->of_node;
+	struct device_node *top = dev->of_node;
+	struct device_node *node = top;
 	struct device_node *cpu_port;
 	struct device_node *cpu_ep		= NULL;
 	struct device_node *codec_ep		= NULL;
@@ -390,9 +411,6 @@ static int asoc_graph_card_parse_of(struct graph_card_data *priv)
 
 	asoc_simple_card_parse_convert(dev, node, NULL, &priv->adata);
 
-	/* Factor to mclk, used in hw_params() */
-	of_property_read_u32(node, "mclk-fs", &priv->mclk_fs);
-
 	link_idx	= 0;
 	dai_idx		= 0;
 	conf_idx	= 0;
@@ -434,7 +452,7 @@ static int asoc_graph_card_parse_of(struct graph_card_data *priv)
 					codec_port_old = codec_port;
 				}
 				ret = asoc_graph_card_dai_link_of_dpcm(
-					cpu_ep, codec_ep, priv,
+					top, cpu_ep, codec_ep, priv,
 					&dai_idx, link_idx++,
 					&conf_idx, cpu);
 			} else if (cpu) {
@@ -442,7 +460,7 @@ static int asoc_graph_card_parse_of(struct graph_card_data *priv)
 				 * for Normal sound
 				 */
 				ret = asoc_graph_card_dai_link_of(
-					cpu_ep, codec_ep, priv,
+					top, cpu_ep, codec_ep, priv,
 					&dai_idx, link_idx++);
 			}
 			if (ret < 0)
-- 
2.7.4

[PATCH 4/6] ASoC: audio-graph-card: tidyup convert_rate/channel method

[Kuninori Morimoto]

From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>

Current audio-graph-card is handling "convert_rate/channel"
by many ways. But, it is not useful and readable.
We want to do is that allow having it everywere.
This patch support it.
It will be overwrote if lower node has it.

sound {
	convert-channels = <xxx>; // initial
};

codec {
	audio-graph-card,convert-channels = <xxx>; // overwrite
	ports {
		convert_channels = <xxx>; // overwrite
		port {
			convert_channels = <xxx>; // overwrite
			endpoint {
				convert_channels = <xxx>; // overwrite
			};
		};
	};
};

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
---
 sound/soc/generic/audio-graph-card.c | 15 +++++++--------
 1 file changed, 7 insertions(+), 8 deletions(-)

diff --git a/sound/soc/generic/audio-graph-card.c b/sound/soc/generic/audio-graph-card.c
index efa6be6..24f1a72 100644
--- a/sound/soc/generic/audio-graph-card.c
+++ b/sound/soc/generic/audio-graph-card.c
@@ -35,7 +35,6 @@ struct graph_card_data {
 	struct asoc_simple_jack mic_jack;
 	struct snd_soc_dai_link *dai_link;
 	struct asoc_simple_dai *dais;
-	struct asoc_simple_card_data adata;
 	struct snd_soc_codec_conf *codec_conf;
 	struct gpio_desc *pa_gpio;
 };
@@ -167,9 +166,6 @@ static int asoc_graph_card_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
 
 	asoc_simple_card_convert_fixup(&dai_props->adata, params);
 
-	/* overwrite by top level adata if exist */
-	asoc_simple_card_convert_fixup(&priv->adata, params);
-
 	return 0;
 }
 
@@ -197,6 +193,13 @@ static int asoc_graph_card_dai_link_of_dpcm(struct device_node *top,
 	of_property_read_u32(ports, "mclk-fs", &dai_props->mclk_fs);
 	of_property_read_u32(port,  "mclk-fs", &dai_props->mclk_fs);
 	of_property_read_u32(ep,    "mclk-fs", &dai_props->mclk_fs);
+
+	asoc_simple_card_parse_convert(dev, top,   NULL,   &dai_props->adata);
+	asoc_simple_card_parse_convert(dev, node,  PREFIX, &dai_props->adata);
+	asoc_simple_card_parse_convert(dev, ports, NULL,   &dai_props->adata);
+	asoc_simple_card_parse_convert(dev, port,  NULL,   &dai_props->adata);
+	asoc_simple_card_parse_convert(dev, ep,    NULL,   &dai_props->adata);
+
 	of_node_put(ports);
 	of_node_put(port);
 
@@ -276,8 +279,6 @@ static int asoc_graph_card_dai_link_of_dpcm(struct device_node *top,
 						     PREFIX "prefix");
 	}
 
-	asoc_simple_card_parse_convert(dev, node, PREFIX, &dai_props->adata);
-
 	ret = asoc_simple_card_of_parse_tdm(ep, dai);
 	if (ret)
 		return ret;
@@ -409,8 +410,6 @@ static int asoc_graph_card_parse_of(struct graph_card_data *priv)
 	if (ret < 0)
 		return ret;
 
-	asoc_simple_card_parse_convert(dev, node, NULL, &priv->adata);
-
 	link_idx	= 0;
 	dai_idx		= 0;
 	conf_idx	= 0;
-- 
2.7.4

[PATCH 5/6] ASoC: audio-graph-scu-card: remove audio-graph-scu-card on Doc

[Kuninori Morimoto]

From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>

It is already merged into audio-graph-card.
audio-graph-scu-card is no longer needed.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
---
 .../bindings/sound/audio-graph-scu-card.txt        | 123 ---------------------
 1 file changed, 123 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/sound/audio-graph-scu-card.txt

diff --git a/Documentation/devicetree/bindings/sound/audio-graph-scu-card.txt b/Documentation/devicetree/bindings/sound/audio-graph-scu-card.txt
deleted file mode 100644
index 62d4276..0000000
--- a/Documentation/devicetree/bindings/sound/audio-graph-scu-card.txt
+++ /dev/null
@@ -1,123 +0,0 @@
-Audio-Graph-SCU-Card:
-
-Audio-Graph-SCU-Card is "Audio-Graph-Card" + "ALSA DPCM".
-
-It is based on common bindings for device graphs.
-see ${LINUX}/Documentation/devicetree/bindings/graph.txt
-
-Basically, Audio-Graph-SCU-Card property is same as
-Simple-Card / Simple-SCU-Card / Audio-Graph-Card.
-see ${LINUX}/Documentation/devicetree/bindings/sound/simple-card.txt
-    ${LINUX}/Documentation/devicetree/bindings/sound/simple-scu-card.txt
-    ${LINUX}/Documentation/devicetree/bindings/sound/audio-graph-card.txt
-
-Below are same as Simple-Card / Audio-Graph-Card.
-
-- label
-- dai-format
-- frame-master
-- bitclock-master
-- bitclock-inversion
-- frame-inversion
-- dai-tdm-slot-num
-- dai-tdm-slot-width
-- clocks / system-clock-frequency
-
-Below are same as Simple-SCU-Card.
-
-- convert-rate
-- convert-channels
-- prefix
-- routing
-
-Required properties:
-
-- compatible				: "audio-graph-scu-card";
-- dais					: list of CPU DAI port{s}
-
-Example 1. Sampling Rate Conversion
-
-	sound_card {
-		compatible = "audio-graph-scu-card";
-
-		label = "sound-card";
-		prefix = "codec";
-		routing = "codec Playback", "DAI0 Playback",
-			  "DAI0 Capture",   "codec Capture";
-		convert-rate = <48000>;
-
-		dais = <&cpu_port>;
-	};
-
-	audio-codec {
-		...
-
-		port {
-			codec_endpoint: endpoint {
-				remote-endpoint = <&cpu_endpoint>;
-			};
-		};
-	};
-
-	dai-controller {
-		...
-		cpu_port: port {
-			cpu_endpoint: endpoint {
-				remote-endpoint = <&codec_endpoint>;
-
-				dai-format = "left_j";
-				...
-			};
-		};
-	};
-
-Example 2. 2 CPU 1 Codec (Mixing)
-
-	sound_card {
-		compatible = "audio-graph-scu-card";
-
-		label = "sound-card";
-		routing = "codec Playback", "DAI0 Playback",
-			  "codec Playback", "DAI1 Playback",
-			  "DAI0 Capture",   "codec Capture";
-
-		dais = <&cpu_port0
-			&cpu_port1>;
-	};
-
-	audio-codec {
-		...
-
-		audio-graph-card,prefix = "codec";
-		audio-graph-card,convert-rate = <48000>;
-		port {
-			codec_endpoint0: endpoint {
-				remote-endpoint = <&cpu_endpoint0>;
-			};
-			codec_endpoint1: endpoint {
-				remote-endpoint = <&cpu_endpoint1>;
-			};
-		};
-	};
-
-	dai-controller {
-		...
-		ports {
-			cpu_port0: port {
-				cpu_endpoint0: endpoint {
-					remote-endpoint = <&codec_endpoint0>;
-
-					dai-format = "left_j";
-					...
-				};
-			};
-			cpu_port1: port {
-				cpu_endpoint1: endpoint {
-					remote-endpoint = <&codec_endpoint1>;
-
-					dai-format = "left_j";
-					...
-				};
-			};
-		};
-	};
-- 
2.7.4

[PATCH 6/6] ASoC: audio-graph-scu-card: remove audio-graph-scu-card

[Kuninori Morimoto]

From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>

It is already merged into audio-graph-card.
audio-graph-scu-card is no longer needed.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
---
 sound/soc/generic/Kconfig                |   9 -
 sound/soc/generic/Makefile               |   2 -
 sound/soc/generic/audio-graph-scu-card.c | 501 -------------------------------
 3 files changed, 512 deletions(-)
 delete mode 100644 sound/soc/generic/audio-graph-scu-card.c

diff --git a/sound/soc/generic/Kconfig b/sound/soc/generic/Kconfig
index 53957824..a7d3824 100644
--- a/sound/soc/generic/Kconfig
+++ b/sound/soc/generic/Kconfig
@@ -23,12 +23,3 @@ config SND_AUDIO_GRAPH_CARD
 	  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_SCU_CARD
-	tristate "ASoC Audio Graph SCU sound card support"
-	depends on OF
-	select SND_SIMPLE_CARD_UTILS
-	help
-	  This option enables generic simple SCU sound card support
-	  with OF-graph DT bindings.
-	  It supports DPCM of multi CPU single Codec ststem.
diff --git a/sound/soc/generic/Makefile b/sound/soc/generic/Makefile
index 9dec293..9fbfdd5 100644
--- a/sound/soc/generic/Makefile
+++ b/sound/soc/generic/Makefile
@@ -3,10 +3,8 @@ snd-soc-simple-card-utils-objs	:= simple-card-utils.o
 snd-soc-simple-card-objs	:= simple-card.o
 snd-soc-simple-scu-card-objs	:= simple-scu-card.o
 snd-soc-audio-graph-card-objs	:= audio-graph-card.o
-snd-soc-audio-graph-scu-card-objs	:= audio-graph-scu-card.o
 
 obj-$(CONFIG_SND_SIMPLE_CARD_UTILS)	+= snd-soc-simple-card-utils.o
 obj-$(CONFIG_SND_SIMPLE_CARD)		+= snd-soc-simple-card.o
 obj-$(CONFIG_SND_SIMPLE_SCU_CARD)	+= snd-soc-simple-scu-card.o
 obj-$(CONFIG_SND_AUDIO_GRAPH_CARD)	+= snd-soc-audio-graph-card.o
-obj-$(CONFIG_SND_AUDIO_GRAPH_SCU_CARD)	+= snd-soc-audio-graph-scu-card.o
diff --git a/sound/soc/generic/audio-graph-scu-card.c b/sound/soc/generic/audio-graph-scu-card.c
deleted file mode 100644
index e1b192e..0000000
--- a/sound/soc/generic/audio-graph-scu-card.c
+++ /dev/null
@@ -1,501 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-//
-// ASoC audio graph SCU sound card support
-//
-// Copyright (C) 2017 Renesas Solutions Corp.
-// Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
-//
-// based on
-//	${LINUX}/sound/soc/generic/simple-scu-card.c
-//	${LINUX}/sound/soc/generic/audio-graph-card.c
-
-#include <linux/clk.h>
-#include <linux/device.h>
-#include <linux/gpio.h>
-#include <linux/module.h>
-#include <linux/of.h>
-#include <linux/of_device.h>
-#include <linux/of_gpio.h>
-#include <linux/of_graph.h>
-#include <linux/platform_device.h>
-#include <linux/string.h>
-#include <sound/jack.h>
-#include <sound/simple_card_utils.h>
-
-struct graph_card_data {
-	struct snd_soc_card snd_card;
-	struct graph_dai_props {
-		struct asoc_simple_dai *cpu_dai;
-		struct asoc_simple_dai *codec_dai;
-		struct snd_soc_dai_link_component codecs;
-		struct snd_soc_dai_link_component platform;
-		struct asoc_simple_card_data adata;
-		struct snd_soc_codec_conf *codec_conf;
-	} *dai_props;
-	struct snd_soc_dai_link *dai_link;
-	struct asoc_simple_dai *dais;
-	struct asoc_simple_card_data adata;
-	struct snd_soc_codec_conf *codec_conf;
-};
-
-#define graph_priv_to_card(priv) (&(priv)->snd_card)
-#define graph_priv_to_props(priv, i) ((priv)->dai_props + (i))
-#define graph_priv_to_dev(priv) (graph_priv_to_card(priv)->dev)
-#define graph_priv_to_link(priv, i) (graph_priv_to_card(priv)->dai_link + (i))
-
-#define PREFIX	"audio-graph-card,"
-
-static int asoc_graph_card_startup(struct snd_pcm_substream *substream)
-{
-	struct snd_soc_pcm_runtime *rtd = substream->private_data;
-	struct graph_card_data *priv = snd_soc_card_get_drvdata(rtd->card);
-	struct graph_dai_props *dai_props = graph_priv_to_props(priv, rtd->num);
-	int ret = 0;
-
-	ret = asoc_simple_card_clk_enable(dai_props->cpu_dai);
-	if (ret)
-		return ret;
-
-	ret = asoc_simple_card_clk_enable(dai_props->codec_dai);
-	if (ret)
-		asoc_simple_card_clk_disable(dai_props->cpu_dai);
-
-	return ret;
-}
-
-static void asoc_graph_card_shutdown(struct snd_pcm_substream *substream)
-{
-	struct snd_soc_pcm_runtime *rtd = substream->private_data;
-	struct graph_card_data *priv = snd_soc_card_get_drvdata(rtd->card);
-	struct graph_dai_props *dai_props = graph_priv_to_props(priv, rtd->num);
-
-	asoc_simple_card_clk_disable(dai_props->cpu_dai);
-
-	asoc_simple_card_clk_disable(dai_props->codec_dai);
-}
-
-static const struct snd_soc_ops asoc_graph_card_ops = {
-	.startup = asoc_graph_card_startup,
-	.shutdown = asoc_graph_card_shutdown,
-};
-
-static int asoc_graph_card_dai_init(struct snd_soc_pcm_runtime *rtd)
-{
-	struct graph_card_data *priv =	snd_soc_card_get_drvdata(rtd->card);
-	struct graph_dai_props *dai_props = graph_priv_to_props(priv, rtd->num);
-	int ret = 0;
-
-	ret = asoc_simple_card_init_dai(rtd->codec_dai,
-					dai_props->codec_dai);
-	if (ret < 0)
-		return ret;
-
-	ret = asoc_simple_card_init_dai(rtd->cpu_dai,
-					dai_props->cpu_dai);
-	if (ret < 0)
-		return ret;
-
-	return 0;
-}
-
-static int asoc_graph_card_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
-					       struct snd_pcm_hw_params *params)
-{
-	struct graph_card_data *priv = snd_soc_card_get_drvdata(rtd->card);
-	struct graph_dai_props *dai_props = graph_priv_to_props(priv, rtd->num);
-
-	asoc_simple_card_convert_fixup(&dai_props->adata, params);
-
-	/* overwrite by top level adata if exist */
-	asoc_simple_card_convert_fixup(&priv->adata, params);
-
-	return 0;
-}
-
-static int asoc_graph_card_dai_link_of(struct device_node *cpu_ep,
-				       struct device_node *codec_ep,
-				       struct graph_card_data *priv,
-				       int *dai_idx, int link_idx,
-				       int *conf_idx, int is_fe)
-{
-	struct device *dev = graph_priv_to_dev(priv);
-	struct snd_soc_dai_link *dai_link = graph_priv_to_link(priv, link_idx);
-	struct graph_dai_props *dai_props = graph_priv_to_props(priv, link_idx);
-	struct snd_soc_card *card = graph_priv_to_card(priv);
-	struct device_node *ep = is_fe ? cpu_ep : codec_ep;
-	struct device_node *node = of_graph_get_port_parent(ep);
-	struct asoc_simple_dai *dai;
-	int ret;
-
-	if (is_fe) {
-		struct snd_soc_dai_link_component *codecs;
-
-		/* BE is dummy */
-		codecs			= dai_link->codecs;
-		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[(*dai_idx)++];
-
-		ret = asoc_simple_card_parse_graph_cpu(ep, dai_link);
-		if (ret)
-			return ret;
-
-		ret = asoc_simple_card_parse_clk_cpu(dev, ep, dai_link, dai);
-		if (ret < 0)
-			return ret;
-
-		ret = asoc_simple_card_set_dailink_name(dev, dai_link,
-							"fe.%s",
-							dai_link->cpu_dai_name);
-		if (ret < 0)
-			return ret;
-
-		/* card->num_links includes Codec */
-		asoc_simple_card_canonicalize_cpu(dai_link,
-			of_graph_get_endpoint_count(dai_link->cpu_of_node) == 1);
-	} else {
-		struct snd_soc_codec_conf *cconf;
-
-		/* FE is dummy */
-		dai_link->cpu_of_node		= NULL;
-		dai_link->cpu_dai_name		= "snd-soc-dummy-dai";
-		dai_link->cpu_name		= "snd-soc-dummy";
-
-		/* BE settings */
-		dai_link->no_pcm		= 1;
-		dai_link->be_hw_params_fixup	= asoc_graph_card_be_hw_params_fixup;
-
-		dai =
-		dai_props->codec_dai	= &priv->dais[(*dai_idx)++];
-
-		cconf =
-		dai_props->codec_conf	= &priv->codec_conf[(*conf_idx)++];
-
-		ret = asoc_simple_card_parse_graph_codec(ep, dai_link);
-		if (ret < 0)
-			return ret;
-
-		ret = asoc_simple_card_parse_clk_codec(dev, ep, dai_link, dai);
-		if (ret < 0)
-			return ret;
-
-		ret = asoc_simple_card_set_dailink_name(dev, dai_link,
-							"be.%s",
-							dai_link->codecs->dai_name);
-		if (ret < 0)
-			return ret;
-
-		/* check "prefix" from top node */
-		snd_soc_of_parse_audio_prefix(card, cconf,
-					      dai_link->codecs->of_node,
-					      "prefix");
-		/* check "prefix" from each node if top doesn't have */
-		if (!cconf->of_node)
-			snd_soc_of_parse_node_prefix(node, cconf,
-						     dai_link->codecs->of_node,
-						     PREFIX "prefix");
-	}
-
-	asoc_simple_card_parse_convert(dev, node, PREFIX, &dai_props->adata);
-
-	ret = asoc_simple_card_of_parse_tdm(ep, dai);
-	if (ret)
-		return ret;
-
-	ret = asoc_simple_card_canonicalize_dailink(dai_link);
-	if (ret < 0)
-		return ret;
-
-	ret = asoc_simple_card_parse_daifmt(dev, cpu_ep, codec_ep,
-					    NULL, &dai_link->dai_fmt);
-	if (ret < 0)
-		return ret;
-
-	dai_link->dpcm_playback		= 1;
-	dai_link->dpcm_capture		= 1;
-	dai_link->ops			= &asoc_graph_card_ops;
-	dai_link->init			= asoc_graph_card_dai_init;
-
-	return 0;
-}
-
-static int asoc_graph_card_parse_of(struct graph_card_data *priv)
-{
-	struct of_phandle_iterator it;
-	struct device *dev = graph_priv_to_dev(priv);
-	struct snd_soc_card *card = graph_priv_to_card(priv);
-	struct device_node *node = dev->of_node;
-	struct device_node *cpu_port;
-	struct device_node *cpu_ep;
-	struct device_node *codec_ep;
-	struct device_node *codec_port;
-	struct device_node *codec_port_old;
-	int dai_idx, link_idx, conf_idx, ret;
-	int rc, codec;
-
-	if (!node)
-		return -EINVAL;
-
-	/*
-	 * we need to consider "widgets", "mclk-fs" around here
-	 * see simple-card
-	 */
-
-	ret = asoc_simple_card_of_parse_routing(card, NULL);
-	if (ret < 0)
-		return ret;
-
-	asoc_simple_card_parse_convert(dev, node, NULL, &priv->adata);
-
-	/*
-	 * it supports multi CPU, single CODEC only here
-	 * see asoc_graph_get_dais_count
-	 */
-
-	link_idx = 0;
-	dai_idx = 0;
-	conf_idx = 0;
-	codec_port_old = NULL;
-	for (codec = 0; codec < 2; codec++) {
-		/*
-		 * To listup valid sounds continuously,
-		 * detect all CPU-dummy first, and
-		 * detect all dummy-Codec second
-		 */
-		of_for_each_phandle(&it, rc, node, "dais", NULL, 0) {
-			cpu_port = it.node;
-			cpu_ep   = of_get_next_child(cpu_port, NULL);
-			codec_ep = of_graph_get_remote_endpoint(cpu_ep);
-			codec_port = of_graph_get_port_parent(codec_ep);
-
-			of_node_put(cpu_ep);
-			of_node_put(codec_ep);
-			of_node_put(cpu_port);
-			of_node_put(codec_port);
-			it.node = NULL;
-
-			if (codec) {
-				if (codec_port_old == codec_port)
-					continue;
-
-				codec_port_old = codec_port;
-			}
-
-			ret = asoc_graph_card_dai_link_of(cpu_ep, codec_ep,
-							  priv, &dai_idx,
-							  link_idx++, &conf_idx,
-							  !codec);
-			if (ret < 0)
-				goto parse_of_err;
-		}
-	}
-
-	ret = asoc_simple_card_parse_card_name(card, NULL);
-	if (ret)
-		goto parse_of_err;
-
-	if ((card->num_links   != link_idx) ||
-	    (card->num_configs != conf_idx)) {
-		dev_err(dev, "dai_link or codec_config wrong (%d/%d, %d/%d)\n",
-			card->num_links, link_idx, card->num_configs, conf_idx);
-		ret = -EINVAL;
-		goto parse_of_err;
-	}
-
-	ret = 0;
-
-parse_of_err:
-	return ret;
-}
-
-static void asoc_graph_get_dais_count(struct device *dev,
-				      int *link_num,
-				      int *dais_num,
-				      int *ccnf_num)
-{
-	struct of_phandle_iterator it;
-	struct device_node *node = dev->of_node;
-	struct device_node *cpu_port;
-	struct device_node *cpu_ep;
-	struct device_node *codec_ep;
-	struct device_node *codec_port;
-	struct device_node *codec_port_old;
-	struct device_node *codec_port_old2;
-	int rc;
-
-	/*
-	 * 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
-	 */
-	codec_port_old = NULL;
-	codec_port_old2 = NULL;
-	of_for_each_phandle(&it, rc, node, "dais", NULL, 0) {
-		cpu_port = it.node;
-		cpu_ep   = of_get_next_child(cpu_port, NULL);
-		codec_ep = of_graph_get_remote_endpoint(cpu_ep);
-		codec_port = of_graph_get_port_parent(codec_ep);
-
-		of_node_put(cpu_ep);
-		of_node_put(codec_ep);
-		of_node_put(codec_port);
-
-		(*link_num)++;
-		(*dais_num)++;
-
-		if (codec_port_old == codec_port) {
-			if (codec_port_old2 != codec_port_old) {
-				(*link_num)++;
-				(*ccnf_num)++;
-			}
-
-			codec_port_old2 = codec_port_old;
-			continue;
-		}
-
-		(*dais_num)++;
-		codec_port_old = codec_port;
-	}
-}
-
-static int asoc_graph_card_probe(struct platform_device *pdev)
-{
-	struct graph_card_data *priv;
-	struct snd_soc_dai_link *dai_link;
-	struct graph_dai_props *dai_props;
-	struct asoc_simple_dai *dais;
-	struct device *dev = &pdev->dev;
-	struct snd_soc_card *card;
-	struct snd_soc_codec_conf *cconf;
-	int lnum = 0, dnum = 0, cnum = 0;
-	int ret, i;
-
-	/* Allocate the private data and the DAI link array */
-	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
-	if (!priv)
-		return -ENOMEM;
-
-	asoc_graph_get_dais_count(dev, &lnum, &dnum, &cnum);
-	if (!lnum || !dnum)
-		return -EINVAL;
-
-	dai_props = devm_kcalloc(dev, lnum, sizeof(*dai_props), GFP_KERNEL);
-	dai_link  = devm_kcalloc(dev, lnum, sizeof(*dai_link),  GFP_KERNEL);
-	dais      = devm_kcalloc(dev, dnum, sizeof(*dais),      GFP_KERNEL);
-	cconf     = devm_kcalloc(dev, cnum, sizeof(*cconf),     GFP_KERNEL);
-	if (!dai_props || !dai_link || !dais)
-		return -ENOMEM;
-
-	/*
-	 * Use snd_soc_dai_link_component instead of legacy style
-	 * It is codec only. but cpu/platform will be supported in the future.
-	 * see
-	 *	soc-core.c :: snd_soc_init_multicodec()
-	 */
-	for (i = 0; i < lnum; i++) {
-		dai_link[i].codecs	= &dai_props[i].codecs;
-		dai_link[i].num_codecs	= 1;
-		dai_link[i].platform	= &dai_props[i].platform;
-	}
-
-	priv->dai_props			= dai_props;
-	priv->dai_link			= dai_link;
-	priv->dais			= dais;
-	priv->codec_conf		= cconf;
-
-	/* Init snd_soc_card */
-	card = graph_priv_to_card(priv);
-	card->owner		= THIS_MODULE;
-	card->dev		= dev;
-	card->dai_link		= priv->dai_link;
-	card->num_links		= lnum;
-	card->codec_conf	= cconf;
-	card->num_configs	= cnum;
-
-	ret = asoc_graph_card_parse_of(priv);
-	if (ret < 0) {
-		if (ret != -EPROBE_DEFER)
-			dev_err(dev, "parse error %d\n", ret);
-		goto err;
-	}
-
-	snd_soc_card_set_drvdata(card, priv);
-
-	ret = devm_snd_soc_register_card(dev, card);
-	if (ret < 0)
-		goto err;
-
-	return 0;
-err:
-	asoc_simple_card_clean_reference(card);
-
-	return ret;
-}
-
-static int asoc_graph_card_remove(struct platform_device *pdev)
-{
-	struct snd_soc_card *card = platform_get_drvdata(pdev);
-
-	return asoc_simple_card_clean_reference(card);
-}
-
-static const struct of_device_id asoc_graph_of_match[] = {
-	{ .compatible = "audio-graph-scu-card", },
-	{},
-};
-MODULE_DEVICE_TABLE(of, asoc_graph_of_match);
-
-static struct platform_driver asoc_graph_card = {
-	.driver = {
-		.name = "asoc-audio-graph-scu-card",
-		.pm = &snd_soc_pm_ops,
-		.of_match_table = asoc_graph_of_match,
-	},
-	.probe = asoc_graph_card_probe,
-	.remove = asoc_graph_card_remove,
-};
-module_platform_driver(asoc_graph_card);
-
-MODULE_ALIAS("platform:asoc-audio-graph-scu-card");
-MODULE_LICENSE("GPL v2");
-MODULE_DESCRIPTION("ASoC Audio Graph SCU Sound Card");
-MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");
-- 
2.7.4

Re: [PATCH 0/6] ASoC: merge audio-graph-scu into audio-graph - final step

[Kuninori Morimoto]

Hi Mark

> audio-graph     card can handle normal sound card, and
> audio-graph-scu card can handle DPCM   sound card.
> But, we can't use these feature in same time now.

Please drop this patch-set.
We need to consider about port vs endpoint.
I will re-post this patch-set if we could agreed.

Best regards
---
Kuninori Morimoto