ASoC: simple-card-utils: share asoc_simple_card_init_priv()

The difference between simple-card / audio-graph are just using
OF graph style, or not. In other words, other things should be same.
This means, simple-card/audio-graph common functions should be
implemented at simple-card-utils, and its own functions should be
implemented at each files.

Current simple-card / audio-graph are initializing each priv,
but it is same operation.
This patch adds new asoc_simple_card_init_priv() and initialize
priv by same operation.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

include/sound/simple_card_utils.h

@@ -60,6 +60,13 @@ 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))
 
+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 */
+};
+
 int asoc_simple_card_parse_daifmt(struct device *dev,
 				  struct device_node *node,
 				  struct device_node *codec,
@@ -153,7 +160,8 @@ int asoc_simple_card_of_parse_widgets(struct snd_soc_card *card,
 int asoc_simple_card_init_jack(struct snd_soc_card *card,
 			       struct asoc_simple_jack *sjack,
 			       int is_hp, char *prefix);
-
+int asoc_simple_card_init_priv(struct asoc_simple_priv *priv,
+			       struct link_info *li);
 
 #ifdef DEBUG
 inline void asoc_simple_debug_dai(struct asoc_simple_priv *priv,

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

@@ -20,13 +20,6 @@
 #include <linux/string.h>
 #include <sound/simple_card_utils.h>
 
-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 */
-};
-
 #define PREFIX	"audio-graph-card,"
 
 static int graph_outdrv_event(struct snd_soc_dapm_widget *w,
@@ -526,14 +519,10 @@ static int graph_card_probe(struct snd_soc_card *card)
 static int graph_probe(struct platform_device *pdev)
 {
 	struct asoc_simple_priv *priv;
-	struct snd_soc_dai_link *dai_link;
-	struct simple_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;
 	struct link_info li;
-	int ret, i;
+	int ret;
 
 	/* Allocate the private data and the DAI link array */
 	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
@@ -552,25 +541,9 @@ static int graph_probe(struct platform_device *pdev)
 	if (!li.link || !li.dais)
 		return -EINVAL;
 
-	dai_props = devm_kcalloc(dev, li.link, sizeof(*dai_props), GFP_KERNEL);
-	dai_link  = devm_kcalloc(dev, li.link, sizeof(*dai_link),  GFP_KERNEL);
-	dais      = devm_kcalloc(dev, li.dais, sizeof(*dais),      GFP_KERNEL);
-	cconf     = devm_kcalloc(dev, li.conf, 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 < li.link; i++) {
-		dai_link[i].codecs	= &dai_props[i].codecs;
-		dai_link[i].num_codecs	= 1;
-		dai_link[i].platforms	= &dai_props[i].platforms;
-		dai_link[i].num_platforms = 1;
-	}
+	ret = asoc_simple_card_init_priv(priv, &li);
+	if (ret < 0)
+		return ret;
 
 	priv->pa_gpio = devm_gpiod_get_optional(dev, "pa", GPIOD_OUT_LOW);
 	if (IS_ERR(priv->pa_gpio)) {
@@ -579,16 +552,6 @@ static int graph_probe(struct platform_device *pdev)
 		return ret;
 	}
 
-	priv->dai_props		= dai_props;
-	priv->dai_link		= dai_link;
-	priv->dais		= dais;
-	priv->codec_conf	= cconf;
-
-	card->dai_link		= dai_link;
-	card->num_links		= li.link;
-	card->codec_conf	= cconf;
-	card->num_configs	= li.conf;
-
 	ret = graph_parse_of(priv);
 	if (ret < 0) {
 		if (ret != -EPROBE_DEFER)

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

@@ -630,6 +630,55 @@ int asoc_simple_card_init_jack(struct snd_soc_card *card,
 }
 EXPORT_SYMBOL_GPL(asoc_simple_card_init_jack);
 
+int asoc_simple_card_init_priv(struct asoc_simple_priv *priv,
+				struct link_info *li)
+{
+	struct snd_soc_card *card = simple_priv_to_card(priv);
+	struct device *dev = simple_priv_to_dev(priv);
+	struct snd_soc_dai_link *dai_link;
+	struct simple_dai_props *dai_props;
+	struct asoc_simple_dai *dais;
+	struct snd_soc_codec_conf *cconf;
+	int i;
+
+	dai_props = devm_kcalloc(dev, li->link, sizeof(*dai_props), GFP_KERNEL);
+	dai_link  = devm_kcalloc(dev, li->link, sizeof(*dai_link),  GFP_KERNEL);
+	dais      = devm_kcalloc(dev, li->dais, sizeof(*dais),      GFP_KERNEL);
+	cconf     = devm_kcalloc(dev, li->conf, 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()
+	 *
+	 * "platform" might be removed
+	 * see
+	 *	simple-card-utils.c :: asoc_simple_card_canonicalize_platform()
+	 */
+	for (i = 0; i < li->link; i++) {
+		dai_link[i].codecs		= &dai_props[i].codecs;
+		dai_link[i].num_codecs		= 1;
+		dai_link[i].platforms		= &dai_props[i].platforms;
+		dai_link[i].num_platforms	= 1;
+	}
+
+	priv->dai_props		= dai_props;
+	priv->dai_link		= dai_link;
+	priv->dais		= dais;
+	priv->codec_conf	= cconf;
+
+	card->dai_link		= priv->dai_link;
+	card->num_links		= li->link;
+	card->codec_conf	= cconf;
+	card->num_configs	= li->conf;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(asoc_simple_init_priv);
+
 /* Module information */
 MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");
 MODULE_DESCRIPTION("ALSA SoC Simple Card Utils");

sound/soc/generic/simple-card.c

@@ -15,13 +15,6 @@
 #include <sound/soc-dai.h>
 #include <sound/soc.h>
 
-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 */
-};
-
 #define DAI	"sound-dai"
 #define CELL	"#sound-dai-cells"
 #define PREFIX	"simple-audio-card,"
@@ -564,15 +557,11 @@ static int simple_soc_probe(struct snd_soc_card *card)
 static int simple_probe(struct platform_device *pdev)
 {
 	struct asoc_simple_priv *priv;
-	struct snd_soc_dai_link *dai_link;
-	struct simple_dai_props *dai_props;
-	struct asoc_simple_dai *dais;
 	struct device *dev = &pdev->dev;
 	struct device_node *np = dev->of_node;
 	struct snd_soc_card *card;
-	struct snd_soc_codec_conf *cconf;
 	struct link_info li;
-	int ret, i;
+	int ret;
 
 	/* Allocate the private data and the DAI link array */
 	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
@@ -589,35 +578,9 @@ static int simple_probe(struct platform_device *pdev)
 	if (!li.link || !li.dais)
 		return -EINVAL;
 
-	dai_props = devm_kcalloc(dev, li.link, sizeof(*dai_props), GFP_KERNEL);
-	dai_link  = devm_kcalloc(dev, li.link, sizeof(*dai_link),  GFP_KERNEL);
-	dais      = devm_kcalloc(dev, li.dais, sizeof(*dais),      GFP_KERNEL);
-	cconf     = devm_kcalloc(dev, li.conf, 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 < li.link; i++) {
-		dai_link[i].codecs	= &dai_props[i].codecs;
-		dai_link[i].num_codecs	= 1;
-		dai_link[i].platforms	= &dai_props[i].platforms;
-		dai_link[i].num_platforms = 1;
-	}
-
-	priv->dai_props		= dai_props;
-	priv->dai_link		= dai_link;
-	priv->dais		= dais;
-	priv->codec_conf	= cconf;
-
-	card->dai_link		= priv->dai_link;
-	card->num_links		= li.link;
-	card->codec_conf	= cconf;
-	card->num_configs	= li.conf;
+	ret = asoc_simple_card_init_priv(priv, &li);
+	if (ret < 0)
+		return ret;
 
 	if (np && of_device_is_available(np)) {
 
@@ -632,6 +595,9 @@ static int simple_probe(struct platform_device *pdev)
 		struct asoc_simple_card_info *cinfo;
 		struct snd_soc_dai_link_component *codecs;
 		struct snd_soc_dai_link_component *platform;
+		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;
@@ -665,10 +631,10 @@ static int simple_probe(struct platform_device *pdev)
 		dai_link->cpu_dai_name	= cinfo->cpu_dai.name;
 		dai_link->dai_fmt	= cinfo->daifmt;
 		dai_link->init		= asoc_simple_dai_init;
-		memcpy(priv->dai_props->cpu_dai, &cinfo->cpu_dai,
-					sizeof(*priv->dai_props->cpu_dai));
-		memcpy(priv->dai_props->codec_dai, &cinfo->codec_dai,
-					sizeof(*priv->dai_props->codec_dai));
+		memcpy(dai_props->cpu_dai, &cinfo->cpu_dai,
+					sizeof(*dai_props->cpu_dai));
+		memcpy(dai_props->codec_dai, &cinfo->codec_dai,
+					sizeof(*dai_props->codec_dai));
 	}
 
 	snd_soc_card_set_drvdata(card, priv);