ASoC: audio-graph-scu-card: use cpu/codec pointer on graph_dai_props

In  DPCM case, it uses CPU-dummy / dummy-Codec dai links, and
non DPCM case, it uses CPU-Codec dai links.

Now, we want to merge audio-graph-card and audio-graph-scu-card.

These sound cards are using silimar but not same logic on each functions.
Then, of course we want to share same logic.
To compromise, this patch uses cpu/codec pointer on audio-graph-scu-card.
It is same logic with audio-graph-card, thus easy merging.
This is prepare for merging audio card
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

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

@@ -26,12 +26,14 @@ struct graph_card_data {
 	struct snd_soc_card snd_card;
 	struct snd_soc_codec_conf codec_conf;
 	struct graph_dai_props {
-		struct asoc_simple_dai dai;
+		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;
 	} *dai_props;
 	struct snd_soc_dai_link *dai_link;
+	struct asoc_simple_dai *dais;
 	struct asoc_simple_card_data adata;
 };
 
@@ -47,8 +49,17 @@ 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;
 
-	return asoc_simple_card_clk_enable(&dai_props->dai);
+	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)
@@ -57,7 +68,9 @@ static void asoc_graph_card_shutdown(struct snd_pcm_substream *substream)
 	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->dai);
+	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 = {
@@ -68,18 +81,20 @@ static const struct snd_soc_ops asoc_graph_card_ops = {
 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 snd_soc_dai *dai;
-	struct snd_soc_dai_link *dai_link;
-	struct graph_dai_props *dai_props;
-	int num = rtd->num;
+	struct graph_dai_props *dai_props = graph_priv_to_props(priv, rtd->num);
+	int ret = 0;
 
-	dai_link	= graph_priv_to_link(priv, num);
-	dai_props	= graph_priv_to_props(priv, num);
-	dai		= dai_link->dynamic ?
-				rtd->cpu_dai :
-				rtd->codec_dai;
+	ret = asoc_simple_card_init_dai(rtd->codec_dai,
+					dai_props->codec_dai);
+	if (ret < 0)
+		return ret;
 
-	return asoc_simple_card_init_dai(dai, &dai_props->dai);
+	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,
@@ -99,14 +114,15 @@ static int asoc_graph_card_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
 static int asoc_graph_card_dai_link_of(struct device_node *cpu_ep,
 				       struct device_node *codec_ep,
 				       struct graph_card_data *priv,
-				       int idx, int is_fe)
+				       int *dai_idx, int link_idx, int is_fe)
 {
 	struct device *dev = graph_priv_to_dev(priv);
-	struct snd_soc_dai_link *dai_link = graph_priv_to_link(priv, idx);
-	struct graph_dai_props *dai_props = graph_priv_to_props(priv, idx);
+	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) {
@@ -122,11 +138,14 @@ static int asoc_graph_card_dai_link_of(struct device_node *cpu_ep,
 		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_props->dai);
+		ret = asoc_simple_card_parse_clk_cpu(dev, ep, dai_link, dai);
 		if (ret < 0)
 			return ret;
 
@@ -149,11 +168,14 @@ static int asoc_graph_card_dai_link_of(struct device_node *cpu_ep,
 		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)++];
+
 		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_props->dai);
+		ret = asoc_simple_card_parse_clk_codec(dev, ep, dai_link, dai);
 		if (ret < 0)
 			return ret;
 
@@ -178,7 +200,7 @@ static int asoc_graph_card_dai_link_of(struct device_node *cpu_ep,
 
 	asoc_simple_card_parse_convert(dev, node, PREFIX, &dai_props->adata);
 
-	ret = asoc_simple_card_of_parse_tdm(ep, &dai_props->dai);
+	ret = asoc_simple_card_of_parse_tdm(ep, dai);
 	if (ret)
 		return ret;
 
@@ -210,7 +232,7 @@ static int asoc_graph_card_parse_of(struct graph_card_data *priv)
 	struct device_node *codec_ep;
 	struct device_node *codec_port;
 	struct device_node *codec_port_old;
-	int dai_idx, ret;
+	int dai_idx, link_idx, ret;
 	int rc, codec;
 
 	if (!node)
@@ -232,6 +254,7 @@ static int asoc_graph_card_parse_of(struct graph_card_data *priv)
 	 * see asoc_graph_get_dais_count
 	 */
 
+	link_idx = 0;
 	dai_idx = 0;
 	codec_port_old = NULL;
 	for (codec = 0; codec < 2; codec++) {
@@ -260,8 +283,8 @@ static int asoc_graph_card_parse_of(struct graph_card_data *priv)
 			}
 
 			ret = asoc_graph_card_dai_link_of(cpu_ep, codec_ep,
-							  priv, dai_idx++,
-							  !codec);
+							  priv, &dai_idx,
+							  link_idx++, !codec);
 			if (ret < 0)
 				goto parse_of_err;
 		}
@@ -364,6 +387,7 @@ 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;
 	int lnum = 0, dnum = 0, cnum = 0;
@@ -380,7 +404,8 @@ static int asoc_graph_card_probe(struct platform_device *pdev)
 
 	dai_props = devm_kcalloc(dev, lnum, sizeof(*dai_props), GFP_KERNEL);
 	dai_link  = devm_kcalloc(dev, lnum, sizeof(*dai_link),  GFP_KERNEL);
-	if (!dai_props || !dai_link)
+	dais      = devm_kcalloc(dev, dnum, sizeof(*dais),      GFP_KERNEL);
+	if (!dai_props || !dai_link || !dais)
 		return -ENOMEM;
 
 	/*
@@ -397,6 +422,7 @@ static int asoc_graph_card_probe(struct platform_device *pdev)
 
 	priv->dai_props			= dai_props;
 	priv->dai_link			= dai_link;
+	priv->dais			= dais;
 
 	/* Init snd_soc_card */
 	card = graph_priv_to_card(priv);