Linux-libre 4.2-gnu

1 files changed, 192 insertions, 247 deletions

diff --git a/sound/soc/sh/rcar/rsrc-card.c b/sound/soc/sh/rcar/rsrc-card.c
index a68517afe..84e935711 100644
--- a/sound/soc/sh/rcar/rsrc-card.c
+++ b/sound/soc/sh/rcar/rsrc-card.c
@@ -45,61 +45,48 @@ static const struct of_device_id rsrc_card_of_match[] = {
 };
 MODULE_DEVICE_TABLE(of, rsrc_card_of_match);
 
+#define DAI_NAME_NUM	32
 struct rsrc_card_dai {
-	const char *name;
 	unsigned int fmt;
 	unsigned int sysclk;
 	struct clk *clk;
+	char dai_name[DAI_NAME_NUM];
 };
 
-#define RSRC_FB_NUM	2 /* FE/BE */
 #define IDX_CPU		0
 #define IDX_CODEC	1
 struct rsrc_card_priv {
 	struct snd_soc_card snd_card;
-	struct rsrc_card_dai_props {
-		struct rsrc_card_dai cpu_dai;
-		struct rsrc_card_dai codec_dai;
-	} dai_props[RSRC_FB_NUM];
 	struct snd_soc_codec_conf codec_conf;
-	struct snd_soc_dai_link dai_link[RSRC_FB_NUM];
+	struct rsrc_card_dai *dai_props;
+	struct snd_soc_dai_link *dai_link;
+	int dai_num;
 	u32 convert_rate;
 };
 
 #define rsrc_priv_to_dev(priv) ((priv)->snd_card.dev)
-#define rsrc_priv_to_link(priv, i) ((priv)->snd_card.dai_link + i)
-#define rsrc_priv_to_props(priv, i) ((priv)->dai_props + i)
+#define rsrc_priv_to_link(priv, i) ((priv)->snd_card.dai_link + (i))
+#define rsrc_priv_to_props(priv, i) ((priv)->dai_props + (i))
 #define rsrc_dev_to_of_data(dev) (of_match_device(rsrc_card_of_match, (dev))->data)
 
 static int rsrc_card_startup(struct snd_pcm_substream *substream)
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct rsrc_card_priv *priv =	snd_soc_card_get_drvdata(rtd->card);
-	struct rsrc_card_dai_props *dai_props =
-		&priv->dai_props[rtd - rtd->card->rtd];
-	int ret;
-
-	ret = clk_prepare_enable(dai_props->cpu_dai.clk);
-	if (ret)
-		return ret;
+	struct rsrc_card_dai *dai_props =
+		rsrc_priv_to_props(priv, rtd - rtd->card->rtd);
 
-	ret = clk_prepare_enable(dai_props->codec_dai.clk);
-	if (ret)
-		clk_disable_unprepare(dai_props->cpu_dai.clk);
-
-	return ret;
+	return clk_prepare_enable(dai_props->clk);
 }
 
 static void rsrc_card_shutdown(struct snd_pcm_substream *substream)
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct rsrc_card_priv *priv =	snd_soc_card_get_drvdata(rtd->card);
-	struct rsrc_card_dai_props *dai_props =
-		&priv->dai_props[rtd - rtd->card->rtd];
-
-	clk_disable_unprepare(dai_props->cpu_dai.clk);
+	struct rsrc_card_dai *dai_props =
+		rsrc_priv_to_props(priv, rtd - rtd->card->rtd);
 
-	clk_disable_unprepare(dai_props->codec_dai.clk);
+	clk_disable_unprepare(dai_props->clk);
 }
 
 static struct snd_soc_ops rsrc_card_ops = {
@@ -107,21 +94,31 @@ static struct snd_soc_ops rsrc_card_ops = {
 	.shutdown = rsrc_card_shutdown,
 };
 
-static int __rsrc_card_dai_init(struct snd_soc_dai *dai,
-				struct rsrc_card_dai *set)
+static int rsrc_card_dai_init(struct snd_soc_pcm_runtime *rtd)
 {
+	struct rsrc_card_priv *priv = snd_soc_card_get_drvdata(rtd->card);
+	struct snd_soc_dai *dai;
+	struct snd_soc_dai_link *dai_link;
+	struct rsrc_card_dai *dai_props;
+	int num = rtd - rtd->card->rtd;
 	int ret;
 
-	if (set->fmt) {
-		ret = snd_soc_dai_set_fmt(dai, set->fmt);
+	dai_link	= rsrc_priv_to_link(priv, num);
+	dai_props	= rsrc_priv_to_props(priv, num);
+	dai		= dai_link->dynamic ?
+				rtd->cpu_dai :
+				rtd->codec_dai;
+
+	if (dai_props->fmt) {
+		ret = snd_soc_dai_set_fmt(dai, dai_props->fmt);
 		if (ret && ret != -ENOTSUPP) {
 			dev_err(dai->dev, "set_fmt error\n");
 			goto err;
 		}
 	}
 
-	if (set->sysclk) {
-		ret = snd_soc_dai_set_sysclk(dai, 0, set->sysclk, 0);
+	if (dai_props->sysclk) {
+		ret = snd_soc_dai_set_sysclk(dai, 0, dai_props->sysclk, 0);
 		if (ret && ret != -ENOTSUPP) {
 			dev_err(dai->dev, "set_sysclk error\n");
 			goto err;
@@ -134,27 +131,6 @@ err:
 	return ret;
 }
 
-static int rsrc_card_dai_init(struct snd_soc_pcm_runtime *rtd)
-{
-	struct rsrc_card_priv *priv =	snd_soc_card_get_drvdata(rtd->card);
-	struct snd_soc_dai *codec = rtd->codec_dai;
-	struct snd_soc_dai *cpu = rtd->cpu_dai;
-	struct rsrc_card_dai_props *dai_props;
-	int num, ret;
-
-	num = rtd - rtd->card->rtd;
-	dai_props = &priv->dai_props[num];
-	ret = __rsrc_card_dai_init(codec, &dai_props->codec_dai);
-	if (ret < 0)
-		return ret;
-
-	ret = __rsrc_card_dai_init(cpu, &dai_props->cpu_dai);
-	if (ret < 0)
-		return ret;
-
-	return 0;
-}
-
 static int rsrc_card_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
 					struct snd_pcm_hw_params *params)
 {
@@ -170,40 +146,47 @@ static int rsrc_card_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
 	return 0;
 }
 
-static int
-rsrc_card_sub_parse_of(struct rsrc_card_priv *priv,
-		       struct device_node *np,
-		       struct rsrc_card_dai *dai,
-		       struct snd_soc_dai_link *dai_link,
-		       int *args_count)
+static int rsrc_card_parse_daifmt(struct device_node *node,
+				  struct device_node *np,
+				  struct rsrc_card_priv *priv,
+				  int idx, bool is_fe)
 {
-	struct device *dev = rsrc_priv_to_dev(priv);
-	const struct rsrc_card_of_data *of_data = rsrc_dev_to_of_data(dev);
-	struct of_phandle_args args;
-	struct device_node **p_node;
-	struct clk *clk;
-	const char **dai_name;
-	const char **name;
-	u32 val;
-	int ret;
+	struct rsrc_card_dai *dai_props = rsrc_priv_to_props(priv, idx);
+	struct device_node *bitclkmaster = NULL;
+	struct device_node *framemaster = NULL;
+	struct device_node *codec = is_fe ? NULL : np;
+	unsigned int daifmt;
 
-	if (args_count) {
-		p_node		= &dai_link->cpu_of_node;
-		dai_name	= &dai_link->cpu_dai_name;
-		name		= &dai_link->cpu_name;
-	} else {
-		p_node		= &dai_link->codec_of_node;
-		dai_name	= &dai_link->codec_dai_name;
-		name		= &dai_link->codec_name;
-	}
+	daifmt = snd_soc_of_parse_daifmt(node, NULL,
+					 &bitclkmaster, &framemaster);
+	daifmt &= ~SND_SOC_DAIFMT_MASTER_MASK;
 
-	if (!np) {
-		/* use snd-soc-dummy */
-		*p_node		= NULL;
-		*dai_name	= "snd-soc-dummy-dai";
-		*name		= "snd-soc-dummy";
-		return 0;
-	}
+	if (!bitclkmaster && !framemaster)
+		return -EINVAL;
+
+	if (codec == bitclkmaster)
+		daifmt |= (codec == framemaster) ?
+			SND_SOC_DAIFMT_CBM_CFM : SND_SOC_DAIFMT_CBM_CFS;
+	else
+		daifmt |= (codec == framemaster) ?
+			SND_SOC_DAIFMT_CBS_CFM : SND_SOC_DAIFMT_CBS_CFS;
+
+	dai_props->fmt	= daifmt;
+
+	of_node_put(bitclkmaster);
+	of_node_put(framemaster);
+
+	return 0;
+}
+
+static int rsrc_card_parse_links(struct device_node *np,
+				 struct rsrc_card_priv *priv,
+				 int idx, bool is_fe)
+{
+	struct snd_soc_dai_link *dai_link = rsrc_priv_to_link(priv, idx);
+	struct rsrc_card_dai *dai_props = rsrc_priv_to_props(priv, idx);
+	struct of_phandle_args args;
+	int ret;
 
 	/*
 	 * Get node via "sound-dai = <&phandle port>"
@@ -214,30 +197,82 @@ rsrc_card_sub_parse_of(struct rsrc_card_priv *priv,
 	if (ret)
 		return ret;
 
-	*p_node = args.np;
+	if (is_fe) {
+		/* BE is dummy */
+		dai_link->codec_of_node		= NULL;
+		dai_link->codec_dai_name	= "snd-soc-dummy-dai";
+		dai_link->codec_name		= "snd-soc-dummy";
+
+		/* FE settings */
+		dai_link->dynamic		= 1;
+		dai_link->dpcm_merged_format	= 1;
+		dai_link->cpu_of_node		= args.np;
+		snd_soc_of_get_dai_name(np, &dai_link->cpu_dai_name);
+
+		/* set dai_name */
+		snprintf(dai_props->dai_name, DAI_NAME_NUM, "fe.%s",
+			 dai_link->cpu_dai_name);
+
+		/*
+		 * In soc_bind_dai_link() will check cpu name after
+		 * of_node matching if dai_link has cpu_dai_name.
+		 * but, it will never match if name was created by
+		 * fmt_single_name() remove cpu_dai_name if cpu_args
+		 * was 0. See:
+		 *	fmt_single_name()
+		 *	fmt_multiple_name()
+		 */
+		if (!args.args_count)
+			dai_link->cpu_dai_name = NULL;
+	} else {
+		struct device *dev = rsrc_priv_to_dev(priv);
+		const struct rsrc_card_of_data *of_data;
 
-	/* Get dai->name */
-	ret = snd_soc_of_get_dai_name(np, dai_name);
-	if (ret < 0)
-		return ret;
+		of_data = rsrc_dev_to_of_data(dev);
 
-	/*
-	 * FIXME
-	 *
-	 * rsrc assumes DPCM playback/capture
-	 */
-	dai_link->dpcm_playback = 1;
-	dai_link->dpcm_capture = 1;
+		/* 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";
 
-	if (args_count) {
-		*args_count = args.args_count;
-		dai_link->dynamic = 1;
-	} else {
-		dai_link->no_pcm = 1;
-		priv->codec_conf.of_node = (*p_node);
-		priv->codec_conf.name_prefix = of_data->prefix;
+		/* BE settings */
+		dai_link->no_pcm		= 1;
+		dai_link->be_hw_params_fixup	= rsrc_card_be_hw_params_fixup;
+		dai_link->codec_of_node		= args.np;
+		snd_soc_of_get_dai_name(np, &dai_link->codec_dai_name);
+
+		/* additional name prefix */
+		priv->codec_conf.of_node	= dai_link->codec_of_node;
+		priv->codec_conf.name_prefix	= of_data->prefix;
+
+		/* set dai_name */
+		snprintf(dai_props->dai_name, DAI_NAME_NUM, "be.%s",
+			 dai_link->codec_dai_name);
 	}
 
+	/* Simple Card assumes platform == cpu */
+	dai_link->platform_of_node	= dai_link->cpu_of_node;
+	dai_link->dpcm_playback		= 1;
+	dai_link->dpcm_capture		= 1;
+	dai_link->name			= dai_props->dai_name;
+	dai_link->stream_name		= dai_props->dai_name;
+	dai_link->ops			= &rsrc_card_ops;
+	dai_link->init			= rsrc_card_dai_init;
+
+	return 0;
+}
+
+static int rsrc_card_parse_clk(struct device_node *np,
+			       struct rsrc_card_priv *priv,
+			       int idx, bool is_fe)
+{
+	struct snd_soc_dai_link *dai_link = rsrc_priv_to_link(priv, idx);
+	struct rsrc_card_dai *dai_props = rsrc_priv_to_props(priv, idx);
+	struct clk *clk;
+	struct device_node *of_np = is_fe ?	dai_link->cpu_of_node :
+						dai_link->codec_of_node;
+	u32 val;
+
 	/*
 	 * Parse dai->sysclk come from "clocks = <&xxx>"
 	 * (if system has common clock)
@@ -246,173 +281,92 @@ rsrc_card_sub_parse_of(struct rsrc_card_priv *priv,
 	 */
 	if (of_property_read_bool(np, "clocks")) {
 		clk = of_clk_get(np, 0);
-		if (IS_ERR(clk)) {
-			ret = PTR_ERR(clk);
-			return ret;
-		}
+		if (IS_ERR(clk))
+			return PTR_ERR(clk);
 
-		dai->sysclk = clk_get_rate(clk);
-		dai->clk = clk;
+		dai_props->sysclk = clk_get_rate(clk);
+		dai_props->clk = clk;
 	} else if (!of_property_read_u32(np, "system-clock-frequency", &val)) {
-		dai->sysclk = val;
+		dai_props->sysclk = val;
 	} else {
-		clk = of_clk_get(args.np, 0);
+		clk = of_clk_get(of_np, 0);
 		if (!IS_ERR(clk))
-			dai->sysclk = clk_get_rate(clk);
+			dai_props->sysclk = clk_get_rate(clk);
 	}
 
 	return 0;
 }
 
-static int rsrc_card_parse_daifmt(struct device_node *node,
-				  struct rsrc_card_priv *priv,
-				  struct device_node *codec,
-				  int idx)
-{
-	struct device_node *bitclkmaster = NULL;
-	struct device_node *framemaster = NULL;
-	struct rsrc_card_dai_props *dai_props = rsrc_priv_to_props(priv, idx);
-	struct rsrc_card_dai *cpu_dai = &dai_props->cpu_dai;
-	struct rsrc_card_dai *codec_dai = &dai_props->codec_dai;
-	unsigned int daifmt;
-
-	daifmt = snd_soc_of_parse_daifmt(node, NULL,
-					 &bitclkmaster, &framemaster);
-	daifmt &= ~SND_SOC_DAIFMT_MASTER_MASK;
-
-	if (!bitclkmaster && !framemaster)
-		return -EINVAL;
-
-	if (codec == bitclkmaster)
-		daifmt |= (codec == framemaster) ?
-			SND_SOC_DAIFMT_CBM_CFM : SND_SOC_DAIFMT_CBM_CFS;
-	else
-		daifmt |= (codec == framemaster) ?
-			SND_SOC_DAIFMT_CBS_CFM : SND_SOC_DAIFMT_CBS_CFS;
-
-	cpu_dai->fmt	= daifmt;
-	codec_dai->fmt	= daifmt;
-
-	of_node_put(bitclkmaster);
-	of_node_put(framemaster);
-
-	return 0;
-}
-
 static int rsrc_card_dai_link_of(struct device_node *node,
+				 struct device_node *np,
 				 struct rsrc_card_priv *priv,
 				 int idx)
 {
 	struct device *dev = rsrc_priv_to_dev(priv);
-	struct snd_soc_dai_link *dai_link = rsrc_priv_to_link(priv, idx);
-	struct rsrc_card_dai_props *dai_props = rsrc_priv_to_props(priv, idx);
-	struct device_node *cpu = NULL;
-	struct device_node *codec = NULL;
-	char *name;
-	char prop[128];
-	int ret, cpu_args;
-
-	cpu = of_get_child_by_name(node, "cpu");
-	codec = of_get_child_by_name(node, "codec");
-
-	if (!cpu || !codec) {
-		ret = -EINVAL;
-		dev_err(dev, "%s: Can't find %s DT node\n", __func__, prop);
-		goto dai_link_of_err;
-	}
+	struct rsrc_card_dai *dai_props = rsrc_priv_to_props(priv, idx);
+	bool is_fe = false;
+	int ret;
 
-	ret = rsrc_card_parse_daifmt(node, priv, codec, idx);
-	if (ret < 0)
-		goto dai_link_of_err;
+	if (0 == strcmp(np->name, "cpu"))
+		is_fe = true;
 
-	ret = rsrc_card_sub_parse_of(priv, (idx == IDX_CPU) ? cpu : NULL,
-				     &dai_props->cpu_dai,
-				     dai_link,
-				     &cpu_args);
+	ret = rsrc_card_parse_daifmt(node, np, priv, idx, is_fe);
 	if (ret < 0)
-		goto dai_link_of_err;
+		return ret;
 
-	ret = rsrc_card_sub_parse_of(priv, (idx == IDX_CODEC) ? codec : NULL,
-				     &dai_props->codec_dai,
-				     dai_link,
-				     NULL);
+	ret = rsrc_card_parse_links(np, priv, idx, is_fe);
 	if (ret < 0)
-		goto dai_link_of_err;
-
-	if (!dai_link->cpu_dai_name || !dai_link->codec_dai_name) {
-		ret = -EINVAL;
-		goto dai_link_of_err;
-	}
-
-	/* Simple Card assumes platform == cpu */
-	dai_link->platform_of_node = dai_link->cpu_of_node;
-
-	/* DAI link name is created from CPU/CODEC dai name */
-	name = devm_kzalloc(dev,
-			    strlen(dai_link->cpu_dai_name)   +
-			    strlen(dai_link->codec_dai_name) + 2,
-			    GFP_KERNEL);
-	if (!name) {
-		ret = -ENOMEM;
-		goto dai_link_of_err;
-	}
-
-	sprintf(name, "%s-%s", dai_link->cpu_dai_name,
-		dai_link->codec_dai_name);
-	dai_link->name = dai_link->stream_name = name;
-	dai_link->ops = &rsrc_card_ops;
-	dai_link->init = rsrc_card_dai_init;
-
-	if (idx == IDX_CODEC)
-		dai_link->be_hw_params_fixup = rsrc_card_be_hw_params_fixup;
-
-	dev_dbg(dev, "\tname : %s\n", dai_link->stream_name);
-	dev_dbg(dev, "\tcpu : %s / %04x / %d\n",
-		dai_link->cpu_dai_name,
-		dai_props->cpu_dai.fmt,
-		dai_props->cpu_dai.sysclk);
-	dev_dbg(dev, "\tcodec : %s / %04x / %d\n",
-		dai_link->codec_dai_name,
-		dai_props->codec_dai.fmt,
-		dai_props->codec_dai.sysclk);
+		return ret;
 
-	/*
-	 * In soc_bind_dai_link() will check cpu name after
-	 * of_node matching if dai_link has cpu_dai_name.
-	 * but, it will never match if name was created by
-	 * fmt_single_name() remove cpu_dai_name if cpu_args
-	 * was 0. See:
-	 *	fmt_single_name()
-	 *	fmt_multiple_name()
-	 */
-	if (!cpu_args)
-		dai_link->cpu_dai_name = NULL;
+	ret = rsrc_card_parse_clk(np, priv, idx, is_fe);
+	if (ret < 0)
+		return ret;
 
-dai_link_of_err:
-	of_node_put(cpu);
-	of_node_put(codec);
+	dev_dbg(dev, "\t%s / %04x / %d\n",
+		dai_props->dai_name,
+		dai_props->fmt,
+		dai_props->sysclk);
 
 	return ret;
 }
 
 static int rsrc_card_parse_of(struct device_node *node,
-			      struct rsrc_card_priv *priv)
+			      struct rsrc_card_priv *priv,
+			      struct device *dev)
 {
-	struct device *dev = rsrc_priv_to_dev(priv);
 	const struct rsrc_card_of_data *of_data = rsrc_dev_to_of_data(dev);
+	struct rsrc_card_dai *props;
+	struct snd_soc_dai_link *links;
+	struct device_node *np;
 	int ret;
-	int i;
+	int i, num;
 
 	if (!node)
 		return -EINVAL;
 
-	/* Parse the card name from DT */
-	snd_soc_of_parse_card_name(&priv->snd_card, "card-name");
+	num = of_get_child_count(node);
+	props = devm_kzalloc(dev, sizeof(*props) * num, GFP_KERNEL);
+	links = devm_kzalloc(dev, sizeof(*links) * num, GFP_KERNEL);
+	if (!props || !links)
+		return -ENOMEM;
+
+	priv->dai_props	= props;
+	priv->dai_link	= links;
+	priv->dai_num	= num;
 
-	/* DAPM routes */
+	/* Init snd_soc_card */
+	priv->snd_card.owner			= THIS_MODULE;
+	priv->snd_card.dev			= dev;
+	priv->snd_card.dai_link			= priv->dai_link;
+	priv->snd_card.num_links		= num;
+	priv->snd_card.codec_conf		= &priv->codec_conf;
+	priv->snd_card.num_configs		= 1;
 	priv->snd_card.of_dapm_routes		= of_data->routes;
 	priv->snd_card.num_of_dapm_routes	= of_data->num_routes;
 
+	/* Parse the card name from DT */
+	snd_soc_of_parse_card_name(&priv->snd_card, "card-name");
+
 	/* sampling rate convert */
 	of_property_read_u32(node, "convert-rate", &priv->convert_rate);
 
@@ -420,11 +374,12 @@ static int rsrc_card_parse_of(struct device_node *node,
 		priv->snd_card.name ? priv->snd_card.name : "",
 		priv->convert_rate);
 
-	/* FE/BE */
-	for (i = 0; i < RSRC_FB_NUM; i++) {
-		ret = rsrc_card_dai_link_of(node, priv, i);
+	i = 0;
+	for_each_child_of_node(node, np) {
+		ret = rsrc_card_dai_link_of(node, np, priv, i);
 		if (ret < 0)
 			return ret;
+		i++;
 	}
 
 	if (!priv->snd_card.name)
@@ -451,7 +406,6 @@ static int rsrc_card_unref(struct snd_soc_card *card)
 static int rsrc_card_probe(struct platform_device *pdev)
 {
 	struct rsrc_card_priv *priv;
-	struct snd_soc_dai_link *dai_link;
 	struct device_node *np = pdev->dev.of_node;
 	struct device *dev = &pdev->dev;
 	int ret;
@@ -461,16 +415,7 @@ static int rsrc_card_probe(struct platform_device *pdev)
 	if (!priv)
 		return -ENOMEM;
 
-	/* Init snd_soc_card */
-	priv->snd_card.owner = THIS_MODULE;
-	priv->snd_card.dev = dev;
-	dai_link = priv->dai_link;
-	priv->snd_card.dai_link = dai_link;
-	priv->snd_card.num_links = RSRC_FB_NUM;
-	priv->snd_card.codec_conf = &priv->codec_conf;
-	priv->snd_card.num_configs = 1;
-
-	ret = rsrc_card_parse_of(np, priv);
+	ret = rsrc_card_parse_of(np, priv, dev);
 	if (ret < 0) {
 		if (ret != -EPROBE_DEFER)
 			dev_err(dev, "parse error %d\n", ret);