1 files changed, 740 insertions, 243 deletions

diff --git a/sound/soc/generic/simple-card-utils.c b/sound/soc/generic/simple-card-utils.c
index 6cada4c1e283..81077d16d22f 100644
--- a/sound/soc/generic/simple-card-utils.c
+++ b/sound/soc/generic/simple-card-utils.c
@@ -5,37 +5,44 @@
 // Copyright (c) 2016 Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
 
 #include <linux/clk.h>
-#include <linux/gpio.h>
 #include <linux/gpio/consumer.h>
 #include <linux/module.h>
 #include <linux/of.h>
-#include <linux/of_gpio.h>
 #include <linux/of_graph.h>
 #include <sound/jack.h>
+#include <sound/pcm_params.h>
 #include <sound/simple_card_utils.h>
 
-void asoc_simple_convert_fixup(struct asoc_simple_data *data,
-			       struct snd_pcm_hw_params *params)
+static void simple_fixup_sample_fmt(struct simple_util_data *data,
+					 struct snd_pcm_hw_params *params)
 {
-	struct snd_interval *rate = hw_param_interval(params,
-						SNDRV_PCM_HW_PARAM_RATE);
-	struct snd_interval *channels = hw_param_interval(params,
-						SNDRV_PCM_HW_PARAM_CHANNELS);
-
-	if (data->convert_rate)
-		rate->min =
-		rate->max = data->convert_rate;
-
-	if (data->convert_channels)
-		channels->min =
-		channels->max = data->convert_channels;
+	int i;
+	struct snd_mask *mask = hw_param_mask(params,
+					      SNDRV_PCM_HW_PARAM_FORMAT);
+	struct {
+		char *fmt;
+		u32 val;
+	} of_sample_fmt_table[] = {
+		{ "s8",		SNDRV_PCM_FORMAT_S8},
+		{ "s16_le",	SNDRV_PCM_FORMAT_S16_LE},
+		{ "s24_le",	SNDRV_PCM_FORMAT_S24_LE},
+		{ "s24_3le",	SNDRV_PCM_FORMAT_S24_3LE},
+		{ "s32_le",	SNDRV_PCM_FORMAT_S32_LE},
+	};
+
+	for (i = 0; i < ARRAY_SIZE(of_sample_fmt_table); i++) {
+		if (!strcmp(data->convert_sample_format,
+			    of_sample_fmt_table[i].fmt)) {
+			snd_mask_none(mask);
+			snd_mask_set(mask, of_sample_fmt_table[i].val);
+			break;
+		}
+	}
 }
-EXPORT_SYMBOL_GPL(asoc_simple_convert_fixup);
 
-void asoc_simple_parse_convert(struct device *dev,
-			       struct device_node *np,
+void simple_util_parse_convert(struct device_node *np,
 			       char *prefix,
-			       struct asoc_simple_data *data)
+			       struct simple_util_data *data)
 {
 	char prop[128];
 
@@ -49,10 +56,29 @@ void asoc_simple_parse_convert(struct device *dev,
 	/* channels transfer */
 	snprintf(prop, sizeof(prop), "%s%s", prefix, "convert-channels");
 	of_property_read_u32(np, prop, &data->convert_channels);
+
+	/* convert sample format */
+	snprintf(prop, sizeof(prop), "%s%s", prefix, "convert-sample-format");
+	of_property_read_string(np, prop, &data->convert_sample_format);
 }
-EXPORT_SYMBOL_GPL(asoc_simple_parse_convert);
+EXPORT_SYMBOL_GPL(simple_util_parse_convert);
+
+/**
+ * simple_util_is_convert_required() - Query if HW param conversion was requested
+ * @data: Link data.
+ *
+ * Returns true if any HW param conversion was requested for this DAI link with
+ * any "convert-xxx" properties.
+ */
+bool simple_util_is_convert_required(const struct simple_util_data *data)
+{
+	return data->convert_rate ||
+	       data->convert_channels ||
+	       data->convert_sample_format;
+}
+EXPORT_SYMBOL_GPL(simple_util_is_convert_required);
 
-int asoc_simple_parse_daifmt(struct device *dev,
+int simple_util_parse_daifmt(struct device *dev,
 			     struct device_node *node,
 			     struct device_node *codec,
 			     char *prefix,
@@ -62,10 +88,9 @@ int asoc_simple_parse_daifmt(struct device *dev,
 	struct device_node *framemaster = NULL;
 	unsigned int daifmt;
 
-	daifmt = snd_soc_of_parse_daifmt(node, prefix,
-					 &bitclkmaster, &framemaster);
-	daifmt &= ~SND_SOC_DAIFMT_MASTER_MASK;
+	daifmt = snd_soc_daifmt_parse_format(node, prefix);
 
+	snd_soc_daifmt_parse_clock_provider_as_phandle(node, prefix, &bitclkmaster, &framemaster);
 	if (!bitclkmaster && !framemaster) {
 		/*
 		 * No dai-link level and master setting was not found from
@@ -74,15 +99,10 @@ int asoc_simple_parse_daifmt(struct device *dev,
 		 */
 		dev_dbg(dev, "Revert to legacy daifmt parsing\n");
 
-		daifmt = snd_soc_of_parse_daifmt(codec, NULL, NULL, NULL) |
-			(daifmt & ~SND_SOC_DAIFMT_CLOCK_MASK);
+		daifmt |= snd_soc_daifmt_parse_clock_provider_as_flag(codec, NULL);
 	} else {
-		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;
+		daifmt |= snd_soc_daifmt_clock_provider_from_bitmap(
+				((codec == bitclkmaster) << 4) | (codec == framemaster));
 	}
 
 	of_node_put(bitclkmaster);
@@ -92,9 +112,54 @@ int asoc_simple_parse_daifmt(struct device *dev,
 
 	return 0;
 }
-EXPORT_SYMBOL_GPL(asoc_simple_parse_daifmt);
+EXPORT_SYMBOL_GPL(simple_util_parse_daifmt);
+
+int simple_util_parse_tdm_width_map(struct device *dev, struct device_node *np,
+				    struct simple_util_dai *dai)
+{
+	u32 *array_values, *p;
+	int n, i, ret;
 
-int asoc_simple_set_dailink_name(struct device *dev,
+	if (!of_property_read_bool(np, "dai-tdm-slot-width-map"))
+		return 0;
+
+	n = of_property_count_elems_of_size(np, "dai-tdm-slot-width-map", sizeof(u32));
+	if (n % 3) {
+		dev_err(dev, "Invalid number of cells for dai-tdm-slot-width-map\n");
+		return -EINVAL;
+	}
+
+	dai->tdm_width_map = devm_kcalloc(dev, n, sizeof(*dai->tdm_width_map), GFP_KERNEL);
+	if (!dai->tdm_width_map)
+		return -ENOMEM;
+
+	array_values = kcalloc(n, sizeof(*array_values), GFP_KERNEL);
+	if (!array_values)
+		return -ENOMEM;
+
+	ret = of_property_read_u32_array(np, "dai-tdm-slot-width-map", array_values, n);
+	if (ret < 0) {
+		dev_err(dev, "Could not read dai-tdm-slot-width-map: %d\n", ret);
+		goto out;
+	}
+
+	p = array_values;
+	for (i = 0; i < n / 3; ++i) {
+		dai->tdm_width_map[i].sample_bits = *p++;
+		dai->tdm_width_map[i].slot_width = *p++;
+		dai->tdm_width_map[i].slot_count = *p++;
+	}
+
+	dai->n_tdm_widths = i;
+	ret = 0;
+out:
+	kfree(array_values);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(simple_util_parse_tdm_width_map);
+
+int simple_util_set_dailink_name(struct device *dev,
 				 struct snd_soc_dai_link *dai_link,
 				 const char *fmt, ...)
 {
@@ -115,9 +180,9 @@ int asoc_simple_set_dailink_name(struct device *dev,
 
 	return ret;
 }
-EXPORT_SYMBOL_GPL(asoc_simple_set_dailink_name);
+EXPORT_SYMBOL_GPL(simple_util_set_dailink_name);
 
-int asoc_simple_parse_card_name(struct snd_soc_card *card,
+int simple_util_parse_card_name(struct snd_soc_card *card,
 				char *prefix)
 {
 	int ret;
@@ -141,9 +206,9 @@ int asoc_simple_parse_card_name(struct snd_soc_card *card,
 
 	return 0;
 }
-EXPORT_SYMBOL_GPL(asoc_simple_parse_card_name);
+EXPORT_SYMBOL_GPL(simple_util_parse_card_name);
 
-static int asoc_simple_clk_enable(struct asoc_simple_dai *dai)
+static int simple_clk_enable(struct simple_util_dai *dai)
 {
 	if (dai)
 		return clk_prepare_enable(dai->clk);
@@ -151,15 +216,15 @@ static int asoc_simple_clk_enable(struct asoc_simple_dai *dai)
 	return 0;
 }
 
-static void asoc_simple_clk_disable(struct asoc_simple_dai *dai)
+static void simple_clk_disable(struct simple_util_dai *dai)
 {
 	if (dai)
 		clk_disable_unprepare(dai->clk);
 }
 
-int asoc_simple_parse_clk(struct device *dev,
+int simple_util_parse_clk(struct device *dev,
 			  struct device_node *node,
-			  struct asoc_simple_dai *simple_dai,
+			  struct simple_util_dai *simple_dai,
 			  struct snd_soc_dai_link_component *dlc)
 {
 	struct clk *clk;
@@ -172,12 +237,15 @@ int asoc_simple_parse_clk(struct device *dev,
 	 *  or device's module clock.
 	 */
 	clk = devm_get_clk_from_child(dev, node, NULL);
+	simple_dai->clk_fixed = of_property_read_bool(
+		node, "system-clock-fixed");
 	if (!IS_ERR(clk)) {
 		simple_dai->sysclk = clk_get_rate(clk);
 
 		simple_dai->clk = clk;
 	} else if (!of_property_read_u32(node, "system-clock-frequency", &val)) {
 		simple_dai->sysclk = val;
+		simple_dai->clk_fixed = true;
 	} else {
 		clk = devm_get_clk_from_child(dev, dlc->of_node, NULL);
 		if (!IS_ERR(clk))
@@ -189,53 +257,126 @@ int asoc_simple_parse_clk(struct device *dev,
 
 	return 0;
 }
-EXPORT_SYMBOL_GPL(asoc_simple_parse_clk);
+EXPORT_SYMBOL_GPL(simple_util_parse_clk);
 
-int asoc_simple_startup(struct snd_pcm_substream *substream)
+static int simple_check_fixed_sysclk(struct device *dev,
+					  struct simple_util_dai *dai,
+					  unsigned int *fixed_sysclk)
 {
-	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);
+	if (dai->clk_fixed) {
+		if (*fixed_sysclk && *fixed_sysclk != dai->sysclk) {
+			dev_err(dev, "inconsistent fixed sysclk rates (%u vs %u)\n",
+				*fixed_sysclk, dai->sysclk);
+			return -EINVAL;
+		}
+		*fixed_sysclk = dai->sysclk;
+	}
+
+	return 0;
+}
+
+int simple_util_startup(struct snd_pcm_substream *substream)
+{
+	struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
+	struct simple_util_priv *priv = snd_soc_card_get_drvdata(rtd->card);
+	struct simple_dai_props *props = simple_priv_to_props(priv, rtd->num);
+	struct simple_util_dai *dai;
+	unsigned int fixed_sysclk = 0;
+	int i1, i2, i;
 	int ret;
 
-	ret = asoc_simple_clk_enable(dai_props->cpu_dai);
-	if (ret)
-		return ret;
+	for_each_prop_dai_cpu(props, i1, dai) {
+		ret = simple_clk_enable(dai);
+		if (ret)
+			goto cpu_err;
+		ret = simple_check_fixed_sysclk(rtd->dev, dai, &fixed_sysclk);
+		if (ret)
+			goto cpu_err;
+	}
 
-	ret = asoc_simple_clk_enable(dai_props->codec_dai);
-	if (ret)
-		asoc_simple_clk_disable(dai_props->cpu_dai);
+	for_each_prop_dai_codec(props, i2, dai) {
+		ret = simple_clk_enable(dai);
+		if (ret)
+			goto codec_err;
+		ret = simple_check_fixed_sysclk(rtd->dev, dai, &fixed_sysclk);
+		if (ret)
+			goto codec_err;
+	}
+
+	if (fixed_sysclk && props->mclk_fs) {
+		unsigned int fixed_rate = fixed_sysclk / props->mclk_fs;
+
+		if (fixed_sysclk % props->mclk_fs) {
+			dev_err(rtd->dev, "fixed sysclk %u not divisible by mclk_fs %u\n",
+				fixed_sysclk, props->mclk_fs);
+			ret = -EINVAL;
+			goto codec_err;
+		}
+		ret = snd_pcm_hw_constraint_minmax(substream->runtime, SNDRV_PCM_HW_PARAM_RATE,
+			fixed_rate, fixed_rate);
+		if (ret < 0)
+			goto codec_err;
+	}
+
+	return 0;
 
+codec_err:
+	for_each_prop_dai_codec(props, i, dai) {
+		if (i >= i2)
+			break;
+		simple_clk_disable(dai);
+	}
+cpu_err:
+	for_each_prop_dai_cpu(props, i, dai) {
+		if (i >= i1)
+			break;
+		simple_clk_disable(dai);
+	}
 	return ret;
 }
-EXPORT_SYMBOL_GPL(asoc_simple_startup);
+EXPORT_SYMBOL_GPL(simple_util_startup);
 
-void asoc_simple_shutdown(struct snd_pcm_substream *substream)
+void simple_util_shutdown(struct snd_pcm_substream *substream)
 {
-	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_priv *priv = snd_soc_card_get_drvdata(rtd->card);
-	struct simple_dai_props *dai_props =
-		simple_priv_to_props(priv, rtd->num);
+	struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
+	struct simple_util_priv *priv = snd_soc_card_get_drvdata(rtd->card);
+	struct simple_dai_props *props = simple_priv_to_props(priv, rtd->num);
+	struct simple_util_dai *dai;
+	int i;
 
-	if (dai_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);
+	for_each_prop_dai_cpu(props, i, dai) {
+		struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, i);
+
+		if (props->mclk_fs && !dai->clk_fixed && !snd_soc_dai_active(cpu_dai))
+			snd_soc_dai_set_sysclk(cpu_dai,
+					       0, 0, SND_SOC_CLOCK_OUT);
+
+		simple_clk_disable(dai);
 	}
+	for_each_prop_dai_codec(props, i, dai) {
+		struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, i);
 
-	asoc_simple_clk_disable(dai_props->cpu_dai);
+		if (props->mclk_fs && !dai->clk_fixed && !snd_soc_dai_active(codec_dai))
+			snd_soc_dai_set_sysclk(codec_dai,
+					       0, 0, SND_SOC_CLOCK_IN);
 
-	asoc_simple_clk_disable(dai_props->codec_dai);
+		simple_clk_disable(dai);
+	}
 }
-EXPORT_SYMBOL_GPL(asoc_simple_shutdown);
+EXPORT_SYMBOL_GPL(simple_util_shutdown);
 
-static int asoc_simple_set_clk_rate(struct asoc_simple_dai *simple_dai,
+static int simple_set_clk_rate(struct device *dev,
+				    struct simple_util_dai *simple_dai,
 				    unsigned long rate)
 {
 	if (!simple_dai)
 		return 0;
 
+	if (simple_dai->clk_fixed && rate != simple_dai->sysclk) {
+		dev_err(dev, "dai %s invalid clock rate %lu\n", simple_dai->name, rate);
+		return -EINVAL;
+	}
+
 	if (!simple_dai->clk)
 		return 0;
 
@@ -245,62 +386,141 @@ static int asoc_simple_set_clk_rate(struct asoc_simple_dai *simple_dai,
 	return clk_set_rate(simple_dai->clk, rate);
 }
 
-int asoc_simple_hw_params(struct snd_pcm_substream *substream,
+static int simple_set_tdm(struct snd_soc_dai *dai,
+				struct simple_util_dai *simple_dai,
+				struct snd_pcm_hw_params *params)
+{
+	int sample_bits = params_width(params);
+	int slot_width, slot_count;
+	int i, ret;
+
+	if (!simple_dai || !simple_dai->tdm_width_map)
+		return 0;
+
+	slot_width = simple_dai->slot_width;
+	slot_count = simple_dai->slots;
+
+	if (slot_width == 0)
+		slot_width = sample_bits;
+
+	for (i = 0; i < simple_dai->n_tdm_widths; ++i) {
+		if (simple_dai->tdm_width_map[i].sample_bits == sample_bits) {
+			slot_width = simple_dai->tdm_width_map[i].slot_width;
+			slot_count = simple_dai->tdm_width_map[i].slot_count;
+			break;
+		}
+	}
+
+	ret = snd_soc_dai_set_tdm_slot(dai,
+				       simple_dai->tx_slot_mask,
+				       simple_dai->rx_slot_mask,
+				       slot_count,
+				       slot_width);
+	if (ret && ret != -ENOTSUPP) {
+		dev_err(dai->dev, "simple-card: set_tdm_slot error: %d\n", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+int simple_util_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_priv *priv = snd_soc_card_get_drvdata(rtd->card);
-	struct simple_dai_props *dai_props =
-		simple_priv_to_props(priv, rtd->num);
+	struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
+	struct simple_util_dai *pdai;
+	struct snd_soc_dai *sdai;
+	struct simple_util_priv *priv = snd_soc_card_get_drvdata(rtd->card);
+	struct simple_dai_props *props = simple_priv_to_props(priv, rtd->num);
 	unsigned int mclk, mclk_fs = 0;
-	int ret = 0;
+	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) {
+		struct snd_soc_component *component;
 		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 = simple_set_clk_rate(rtd->dev, pdai, mclk);
+			if (ret < 0)
+				return ret;
+		}
+
+		for_each_prop_dai_cpu(props, i, pdai) {
+			ret = simple_set_clk_rate(rtd->dev, pdai, mclk);
+			if (ret < 0)
+				return ret;
+		}
+
+		/* Ensure sysclk is set on all components in case any
+		 * (such as platform components) are missed by calls to
+		 * snd_soc_dai_set_sysclk.
+		 */
+		for_each_rtd_components(rtd, i, component) {
+			ret = snd_soc_component_set_sysclk(component, 0, 0,
+							   mclk, SND_SOC_CLOCK_IN);
+			if (ret && ret != -ENOTSUPP)
+				return ret;
+		}
+
+		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)
+				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)
+				return ret;
+		}
+	}
+
+	for_each_prop_dai_codec(props, i, pdai) {
+		sdai = snd_soc_rtd_to_codec(rtd, i);
+		ret = simple_set_tdm(sdai, pdai, params);
 		if (ret < 0)
 			return ret;
+	}
 
-		ret = asoc_simple_set_clk_rate(dai_props->cpu_dai, mclk);
+	for_each_prop_dai_cpu(props, i, pdai) {
+		sdai = snd_soc_rtd_to_cpu(rtd, i);
+		ret = simple_set_tdm(sdai, pdai, params);
 		if (ret < 0)
 			return ret;
-
-		ret = snd_soc_dai_set_sysclk(codec_dai, 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);
-		if (ret && ret != -ENOTSUPP)
-			goto err;
 	}
+
 	return 0;
-err:
-	return ret;
 }
-EXPORT_SYMBOL_GPL(asoc_simple_hw_params);
+EXPORT_SYMBOL_GPL(simple_util_hw_params);
 
-int asoc_simple_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
+int simple_util_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
 				   struct snd_pcm_hw_params *params)
 {
-	struct asoc_simple_priv *priv = snd_soc_card_get_drvdata(rtd->card);
+	struct simple_util_priv *priv = snd_soc_card_get_drvdata(rtd->card);
 	struct simple_dai_props *dai_props = simple_priv_to_props(priv, rtd->num);
+	struct simple_util_data *data = &dai_props->adata;
+	struct snd_interval *rate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
+	struct snd_interval *channels = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
+
+	if (data->convert_rate)
+		rate->min =
+		rate->max = data->convert_rate;
+
+	if (data->convert_channels)
+		channels->min =
+		channels->max = data->convert_channels;
 
-	asoc_simple_convert_fixup(&dai_props->adata, params);
+	if (data->convert_sample_format)
+		simple_fixup_sample_fmt(data, params);
 
 	return 0;
 }
-EXPORT_SYMBOL_GPL(asoc_simple_be_hw_params_fixup);
+EXPORT_SYMBOL_GPL(simple_util_be_hw_params_fixup);
 
-static int asoc_simple_init_dai(struct snd_soc_dai *dai,
-				     struct asoc_simple_dai *simple_dai)
+static int simple_init_dai(struct snd_soc_dai *dai, struct simple_util_dai *simple_dai)
 {
 	int ret;
 
@@ -331,18 +551,31 @@ static int asoc_simple_init_dai(struct snd_soc_dai *dai,
 	return 0;
 }
 
-static int asoc_simple_init_dai_link_params(struct snd_soc_pcm_runtime *rtd,
-					    struct simple_dai_props *dai_props)
+static inline int simple_component_is_codec(struct snd_soc_component *component)
+{
+	return component->driver->endianness;
+}
+
+static int simple_init_for_codec2codec(struct snd_soc_pcm_runtime *rtd,
+				       struct simple_dai_props *dai_props)
 {
 	struct snd_soc_dai_link *dai_link = rtd->dai_link;
 	struct snd_soc_component *component;
-	struct snd_soc_pcm_stream *params;
+	struct snd_soc_pcm_stream *c2c_params;
 	struct snd_pcm_hardware hw;
 	int i, ret, stream;
 
-	/* Only codecs should have non_legacy_dai_naming set. */
+	/* Do nothing if it already has Codec2Codec settings */
+	if (dai_link->c2c_params)
+		return 0;
+
+	/* Do nothing if it was DPCM :: BE */
+	if (dai_link->no_pcm)
+		return 0;
+
+	/* Only Codecs */
 	for_each_rtd_components(rtd, i, component) {
-		if (!component->driver->non_legacy_dai_naming)
+		if (!simple_component_is_codec(component))
 			return 0;
 	}
 
@@ -358,63 +591,68 @@ static int asoc_simple_init_dai_link_params(struct snd_soc_pcm_runtime *rtd,
 		return ret;
 	}
 
-	params = devm_kzalloc(rtd->dev, sizeof(*params), GFP_KERNEL);
-	if (!params)
+	c2c_params = devm_kzalloc(rtd->dev, sizeof(*c2c_params), GFP_KERNEL);
+	if (!c2c_params)
 		return -ENOMEM;
 
-	params->formats = hw.formats;
-	params->rates = hw.rates;
-	params->rate_min = hw.rate_min;
-	params->rate_max = hw.rate_max;
-	params->channels_min = hw.channels_min;
-	params->channels_max = hw.channels_max;
+	c2c_params->formats		= hw.formats;
+	c2c_params->rates		= hw.rates;
+	c2c_params->rate_min		= hw.rate_min;
+	c2c_params->rate_max		= hw.rate_max;
+	c2c_params->channels_min	= hw.channels_min;
+	c2c_params->channels_max	= hw.channels_max;
 
-	dai_link->params = params;
-	dai_link->num_params = 1;
+	dai_link->c2c_params		= c2c_params;
+	dai_link->num_c2c_params	= 1;
 
 	return 0;
 }
 
-int asoc_simple_dai_init(struct snd_soc_pcm_runtime *rtd)
+int simple_util_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_util_priv *priv = snd_soc_card_get_drvdata(rtd->card);
+	struct simple_dai_props *props = simple_priv_to_props(priv, rtd->num);
+	struct simple_util_dai *dai;
+	int i, ret;
 
-	ret = asoc_simple_init_dai(asoc_rtd_to_codec(rtd, 0),
-				   dai_props->codec_dai);
-	if (ret < 0)
-		return ret;
-
-	ret = asoc_simple_init_dai(asoc_rtd_to_cpu(rtd, 0),
-				   dai_props->cpu_dai);
-	if (ret < 0)
-		return ret;
+	for_each_prop_dai_codec(props, i, dai) {
+		ret = simple_init_dai(snd_soc_rtd_to_codec(rtd, i), dai);
+		if (ret < 0)
+			return ret;
+	}
+	for_each_prop_dai_cpu(props, i, dai) {
+		ret = simple_init_dai(snd_soc_rtd_to_cpu(rtd, i), dai);
+		if (ret < 0)
+			return ret;
+	}
 
-	ret = asoc_simple_init_dai_link_params(rtd, dai_props);
+	ret = simple_init_for_codec2codec(rtd, props);
 	if (ret < 0)
 		return ret;
 
 	return 0;
 }
-EXPORT_SYMBOL_GPL(asoc_simple_dai_init);
+EXPORT_SYMBOL_GPL(simple_util_dai_init);
 
-void asoc_simple_canonicalize_platform(struct snd_soc_dai_link *dai_link)
+void simple_util_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;
-
 	/*
-	 * DPCM BE can be no platform.
-	 * Alloced memory will be waste, but not leak.
+	 * Assumes Platform == CPU
+	 *
+	 * Some CPU might be using soc-generic-dmaengine-pcm. This means CPU and Platform
+	 * are different Component, but are sharing same component->dev.
+	 *
+	 * Let's assume Platform is same as CPU if it doesn't identify Platform on DT.
+	 * see
+	 *	simple-card.c :: simple_count_noml()
 	 */
-	if (!dai_link->platforms->of_node)
-		dai_link->num_platforms = 0;
+	if (!platforms->of_node)
+		snd_soc_dlc_use_cpu_as_platform(platforms, cpus);
 }
-EXPORT_SYMBOL_GPL(asoc_simple_canonicalize_platform);
+EXPORT_SYMBOL_GPL(simple_util_canonicalize_platform);
 
-void asoc_simple_canonicalize_cpu(struct snd_soc_dai_link *dai_link,
+void simple_util_canonicalize_cpu(struct snd_soc_dai_link_component *cpus,
 				  int is_single_links)
 {
 	/*
@@ -427,24 +665,27 @@ 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);
+EXPORT_SYMBOL_GPL(simple_util_canonicalize_cpu);
 
-int asoc_simple_clean_reference(struct snd_soc_card *card)
+void simple_util_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;
 }
-EXPORT_SYMBOL_GPL(asoc_simple_clean_reference);
+EXPORT_SYMBOL_GPL(simple_util_clean_reference);
 
-int asoc_simple_parse_routing(struct snd_soc_card *card,
+int simple_util_parse_routing(struct snd_soc_card *card,
 			      char *prefix)
 {
 	struct device_node *node = card->dev->of_node;
@@ -460,9 +701,9 @@ int asoc_simple_parse_routing(struct snd_soc_card *card,
 
 	return snd_soc_of_parse_audio_routing(card, prop);
 }
-EXPORT_SYMBOL_GPL(asoc_simple_parse_routing);
+EXPORT_SYMBOL_GPL(simple_util_parse_routing);
 
-int asoc_simple_parse_widgets(struct snd_soc_card *card,
+int simple_util_parse_widgets(struct snd_soc_card *card,
 			      char *prefix)
 {
 	struct device_node *node = card->dev->of_node;
@@ -479,77 +720,34 @@ int asoc_simple_parse_widgets(struct snd_soc_card *card,
 	/* no widgets is not error */
 	return 0;
 }
-EXPORT_SYMBOL_GPL(asoc_simple_parse_widgets);
+EXPORT_SYMBOL_GPL(simple_util_parse_widgets);
 
-int asoc_simple_parse_pin_switches(struct snd_soc_card *card,
+int simple_util_parse_pin_switches(struct snd_soc_card *card,
 				   char *prefix)
 {
-	const unsigned int nb_controls_max = 16;
-	const char **strings, *control_name;
-	struct snd_kcontrol_new *controls;
-	struct device *dev = card->dev;
-	unsigned int i, nb_controls;
 	char prop[128];
-	int ret;
 
 	if (!prefix)
 		prefix = "";
 
 	snprintf(prop, sizeof(prop), "%s%s", prefix, "pin-switches");
 
-	if (!of_property_read_bool(dev->of_node, prop))
-		return 0;
-
-	strings = devm_kcalloc(dev, nb_controls_max,
-			       sizeof(*strings), GFP_KERNEL);
-	if (!strings)
-		return -ENOMEM;
-
-	ret = of_property_read_string_array(dev->of_node, prop,
-					    strings, nb_controls_max);
-	if (ret < 0)
-		return ret;
-
-	nb_controls = (unsigned int)ret;
-
-	controls = devm_kcalloc(dev, nb_controls,
-				sizeof(*controls), GFP_KERNEL);
-	if (!controls)
-		return -ENOMEM;
-
-	for (i = 0; i < nb_controls; i++) {
-		control_name = devm_kasprintf(dev, GFP_KERNEL,
-					      "%s Switch", strings[i]);
-		if (!control_name)
-			return -ENOMEM;
-
-		controls[i].iface = SNDRV_CTL_ELEM_IFACE_MIXER;
-		controls[i].name = control_name;
-		controls[i].info = snd_soc_dapm_info_pin_switch;
-		controls[i].get = snd_soc_dapm_get_pin_switch;
-		controls[i].put = snd_soc_dapm_put_pin_switch;
-		controls[i].private_value = (unsigned long)strings[i];
-	}
-
-	card->controls = controls;
-	card->num_controls = nb_controls;
-
-	return 0;
+	return snd_soc_of_parse_pin_switches(card, prop);
 }
-EXPORT_SYMBOL_GPL(asoc_simple_parse_pin_switches);
+EXPORT_SYMBOL_GPL(simple_util_parse_pin_switches);
 
-int asoc_simple_init_jack(struct snd_soc_card *card,
-			  struct asoc_simple_jack *sjack,
+int simple_util_init_jack(struct snd_soc_card *card,
+			  struct simple_util_jack *sjack,
 			  int is_hp, char *prefix,
 			  char *pin)
 {
 	struct device *dev = card->dev;
-	enum of_gpio_flags flags;
+	struct gpio_desc *desc;
 	char prop[128];
 	char *pin_name;
 	char *gpio_name;
 	int mask;
-	int det;
+	int error;
 
 	if (!prefix)
 		prefix = "";
@@ -557,98 +755,397 @@ int asoc_simple_init_jack(struct snd_soc_card *card,
 	sjack->gpio.gpio = -ENOENT;
 
 	if (is_hp) {
-		snprintf(prop, sizeof(prop), "%shp-det-gpio", prefix);
+		snprintf(prop, sizeof(prop), "%shp-det", prefix);
 		pin_name	= pin ? pin : "Headphones";
 		gpio_name	= "Headphone detection";
 		mask		= SND_JACK_HEADPHONE;
 	} else {
-		snprintf(prop, sizeof(prop), "%smic-det-gpio", prefix);
+		snprintf(prop, sizeof(prop), "%smic-det", prefix);
 		pin_name	= pin ? pin : "Mic Jack";
 		gpio_name	= "Mic detection";
 		mask		= SND_JACK_MICROPHONE;
 	}
 
-	det = of_get_named_gpio_flags(dev->of_node, prop, 0, &flags);
-	if (det == -EPROBE_DEFER)
-		return -EPROBE_DEFER;
+	desc = gpiod_get_optional(dev, prop, GPIOD_IN);
+	error = PTR_ERR_OR_ZERO(desc);
+	if (error)
+		return error;
+
+	if (desc) {
+		error = gpiod_set_consumer_name(desc, gpio_name);
+		if (error)
+			return error;
 
-	if (gpio_is_valid(det)) {
 		sjack->pin.pin		= pin_name;
 		sjack->pin.mask		= mask;
 
 		sjack->gpio.name	= gpio_name;
 		sjack->gpio.report	= mask;
-		sjack->gpio.gpio	= det;
-		sjack->gpio.invert	= !!(flags & OF_GPIO_ACTIVE_LOW);
+		sjack->gpio.desc	= desc;
 		sjack->gpio.debounce_time = 150;
 
-		snd_soc_card_jack_new(card, pin_name, mask,
-				      &sjack->jack,
-				      &sjack->pin, 1);
+		snd_soc_card_jack_new_pins(card, pin_name, mask, &sjack->jack,
+					   &sjack->pin, 1);
+
+		snd_soc_jack_add_gpios(&sjack->jack, 1, &sjack->gpio);
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(simple_util_init_jack);
+
+int simple_util_init_aux_jacks(struct simple_util_priv *priv, char *prefix)
+{
+	struct snd_soc_card *card = simple_priv_to_card(priv);
+	struct snd_soc_component *component;
+	int found_jack_index = 0;
+	int type = 0;
+	int num = 0;
+	int ret;
 
-		snd_soc_jack_add_gpios(&sjack->jack, 1,
-				       &sjack->gpio);
+	if (priv->aux_jacks)
+		return 0;
+
+	for_each_card_auxs(card, component) {
+		type = snd_soc_component_get_jack_type(component);
+		if (type > 0)
+			num++;
 	}
+	if (num < 1)
+		return 0;
+
+	priv->aux_jacks = devm_kcalloc(card->dev, num,
+				       sizeof(struct snd_soc_jack), GFP_KERNEL);
+	if (!priv->aux_jacks)
+		return -ENOMEM;
 
+	for_each_card_auxs(card, component) {
+		char id[128];
+		struct snd_soc_jack *jack;
+
+		if (found_jack_index >= num)
+			break;
+
+		type = snd_soc_component_get_jack_type(component);
+		if (type <= 0)
+			continue;
+
+		/* create jack */
+		jack = &(priv->aux_jacks[found_jack_index++]);
+		snprintf(id, sizeof(id), "%s-jack", component->name);
+		ret = snd_soc_card_jack_new(card, id, type, jack);
+		if (ret)
+			continue;
+
+		(void)snd_soc_component_set_jack(component, jack, NULL);
+	}
 	return 0;
 }
-EXPORT_SYMBOL_GPL(asoc_simple_init_jack);
+EXPORT_SYMBOL_GPL(simple_util_init_aux_jacks);
 
-int asoc_simple_init_priv(struct asoc_simple_priv *priv,
+int simple_util_init_priv(struct simple_util_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 simple_util_dai *dais;
+	struct snd_soc_dai_link_component *dlcs;
 	struct snd_soc_codec_conf *cconf = NULL;
-	int i;
+	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);
-	dais      = devm_kcalloc(dev, li->dais, sizeof(*dais),      GFP_KERNEL);
-	if (!dai_props || !dai_link || !dais)
+	if (!dai_props || !dai_link)
 		return -ENOMEM;
 
-	if (li->conf) {
-		cconf = devm_kcalloc(dev, li->conf, sizeof(*cconf), GFP_KERNEL);
-		if (!cconf)
-			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_canonicalize_platform()
+	 * dais (= CPU+Codec)
+	 * dlcs (= CPU+Codec+Platform)
 	 */
 	for (i = 0; i < li->link; i++) {
-		dai_link[i].cpus		= &dai_props[i].cpus;
-		dai_link[i].num_cpus		= 1;
-		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;
+		int cc = li->num[i].cpus + li->num[i].codecs;
+
+		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);
+	dlcs = devm_kcalloc(dev, dlc_num, sizeof(*dlcs), GFP_KERNEL);
+	if (!dais || !dlcs)
+		return -ENOMEM;
+
+	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);
+
 	priv->dai_props		= dai_props;
 	priv->dai_link		= dai_link;
 	priv->dais		= dais;
+	priv->dlcs		= dlcs;
 	priv->codec_conf	= cconf;
 
 	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) {
+			/* Normal CPU */
+			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_link[i].cpus	= &snd_soc_dummy_dlc;
+			dai_props[i].num.cpus	=
+			dai_link[i].num_cpus	= 1;
+		}
+
+		if (li->num[i].codecs) {
+			/* Normal Codec */
+			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_link[i].codecs	= &snd_soc_dummy_dlc;
+			dai_props[i].num.codecs	=
+			dai_link[i].num_codecs	= 1;
+		}
+
+		if (li->num[i].platforms) {
+			/* Have Platform */
+			dai_link[i].platforms		= dlcs;
+			dai_props[i].num.platforms	=
+			dai_link[i].num_platforms	= li->num[i].platforms;
+
+			dlcs += li->num[i].platforms;
+		} else {
+			/* Doesn't have Platform */
+			dai_link[i].platforms		= NULL;
+			dai_props[i].num.platforms	=
+			dai_link[i].num_platforms	= 0;
+		}
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(simple_util_init_priv);
+
+void simple_util_remove(struct platform_device *pdev)
+{
+	struct snd_soc_card *card = platform_get_drvdata(pdev);
+
+	simple_util_clean_reference(card);
+}
+EXPORT_SYMBOL_GPL(simple_util_remove);
+
+int graph_util_card_probe(struct snd_soc_card *card)
+{
+	struct simple_util_priv *priv = snd_soc_card_get_drvdata(card);
+	int ret;
+
+	ret = simple_util_init_hp(card, &priv->hp_jack, NULL);
+	if (ret < 0)
+		return ret;
+
+	ret = simple_util_init_mic(card, &priv->mic_jack, NULL);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(graph_util_card_probe);
+
+int graph_util_is_ports0(struct device_node *np)
+{
+	struct device_node *port, *ports, *ports0, *top;
+	int ret;
+
+	/* np is "endpoint" or "port" */
+	if (of_node_name_eq(np, "endpoint")) {
+		port = of_get_parent(np);
+	} else {
+		port = np;
+		of_node_get(port);
+	}
+
+	ports	= of_get_parent(port);
+	top	= of_get_parent(ports);
+	ports0	= of_get_child_by_name(top, "ports");
+
+	ret = ports0 == ports;
+
+	of_node_put(port);
+	of_node_put(ports);
+	of_node_put(ports0);
+	of_node_put(top);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(graph_util_is_ports0);
+
+static int graph_get_dai_id(struct device_node *ep)
+{
+	struct device_node *node;
+	struct device_node *endpoint;
+	struct of_endpoint info;
+	int i, id;
+	int ret;
+
+	/* use driver specified DAI ID if exist */
+	ret = snd_soc_get_dai_id(ep);
+	if (ret != -ENOTSUPP)
+		return ret;
+
+	/* use endpoint/port reg if exist */
+	ret = of_graph_parse_endpoint(ep, &info);
+	if (ret == 0) {
+		/*
+		 * Because it will count port/endpoint if it doesn't have "reg".
+		 * But, we can't judge whether it has "no reg", or "reg = <0>"
+		 * only of_graph_parse_endpoint().
+		 * We need to check "reg" property
+		 */
+		if (of_property_present(ep,   "reg"))
+			return info.id;
+
+		node = of_get_parent(ep);
+		ret = of_property_present(node, "reg");
+		of_node_put(node);
+		if (ret)
+			return info.port;
+	}
+	node = of_graph_get_port_parent(ep);
+
+	/*
+	 * Non HDMI sound case, counting port/endpoint on its DT
+	 * is enough. Let's count it.
+	 */
+	i = 0;
+	id = -1;
+	for_each_endpoint_of_node(node, endpoint) {
+		if (endpoint == ep)
+			id = i;
+		i++;
+	}
+
+	of_node_put(node);
+
+	if (id < 0)
+		return -ENODEV;
+
+	return id;
+}
+
+int graph_util_parse_dai(struct device *dev, struct device_node *ep,
+			 struct snd_soc_dai_link_component *dlc, int *is_single_link)
+{
+	struct device_node *node;
+	struct of_phandle_args args = {};
+	struct snd_soc_dai *dai;
+	int ret;
+
+	if (!ep)
+		return 0;
+
+	node = of_graph_get_port_parent(ep);
+
+	/*
+	 * Try to find from DAI node
+	 */
+	args.np = ep;
+	dai = snd_soc_get_dai_via_args(&args);
+	if (dai) {
+		dlc->dai_name = snd_soc_dai_name_get(dai);
+		dlc->dai_args = snd_soc_copy_dai_args(dev, &args);
+		if (!dlc->dai_args)
+			return -ENOMEM;
+
+		goto parse_dai_end;
+	}
+
+	/* Get dai->name */
+	args.np		= node;
+	args.args[0]	= graph_get_dai_id(ep);
+	args.args_count	= (of_graph_get_endpoint_count(node) > 1);
+
+	/*
+	 * FIXME
+	 *
+	 * Here, dlc->dai_name is pointer to CPU/Codec DAI name.
+	 * If user unbinded CPU or Codec driver, but not for Sound Card,
+	 * dlc->dai_name is keeping unbinded CPU or Codec
+	 * driver's pointer.
+	 *
+	 * If user re-bind CPU or Codec driver again, ALSA SoC will try
+	 * to rebind Card via snd_soc_try_rebind_card(), but because of
+	 * above reason, it might can't bind Sound Card.
+	 * Because Sound Card is pointing to released dai_name pointer.
+	 *
+	 * To avoid this rebind Card issue,
+	 * 1) It needs to alloc memory to keep dai_name eventhough
+	 *    CPU or Codec driver was unbinded, or
+	 * 2) user need to rebind Sound Card everytime
+	 *    if he unbinded CPU or Codec.
+	 */
+	ret = snd_soc_get_dlc(&args, dlc);
+	if (ret < 0) {
+		of_node_put(node);
+		return ret;
+	}
+
+parse_dai_end:
+	if (is_single_link)
+		*is_single_link = of_graph_get_endpoint_count(node) == 1;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(graph_util_parse_dai);
+
+int graph_util_parse_link_direction(struct device_node *np,
+				    bool *playback_only, bool *capture_only)
+{
+	bool is_playback_only = false;
+	bool is_capture_only = false;
+
+	is_playback_only = of_property_read_bool(np, "playback-only");
+	is_capture_only = of_property_read_bool(np, "capture-only");
+
+	if (is_playback_only && is_capture_only)
+		return -EINVAL;
+
+	*playback_only = is_playback_only;
+	*capture_only = is_capture_only;
 
 	return 0;
 }
-EXPORT_SYMBOL_GPL(asoc_simple_init_priv);
+EXPORT_SYMBOL_GPL(graph_util_parse_link_direction);
 
 /* Module information */
 MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");