sound/soc/codecs/pcm3060.c - linux - Git at Google

 // SPDX-License-Identifier: GPL-2.0
 //
 // PCM3060 codec driver
 //
 // Copyright (C) 2018 Kirill Marinushkin <kmarinushkin@birdec.com>

 #include <linux/module.h>
 #include <sound/pcm_params.h>
 #include <sound/soc.h>
 #include <sound/tlv.h>

 #include "pcm3060.h"

 /* dai */

 static int pcm3060_set_sysclk(struct snd_soc_dai *dai, int clk_id,
 			      unsigned int freq, int dir)
 {
 	struct snd_soc_component *comp = dai->component;
 	struct pcm3060_priv *priv = snd_soc_component_get_drvdata(comp);
 	unsigned int reg;
 	unsigned int val;

 	if (dir != SND_SOC_CLOCK_IN) {
 		dev_err(comp->dev, "unsupported sysclock dir: %d\n", dir);
 		return -EINVAL;
 	}

 	switch (clk_id) {
 	case PCM3060_CLK_DEF:
 		val = 0;
 		break;

 	case PCM3060_CLK1:
 		val = (dai->id == PCM3060_DAI_ID_DAC ? PCM3060_REG_CSEL : 0);
 		break;

 	case PCM3060_CLK2:
 		val = (dai->id == PCM3060_DAI_ID_DAC ? 0 : PCM3060_REG_CSEL);
 		break;

 	default:
 		dev_err(comp->dev, "unsupported sysclock id: %d\n", clk_id);
 		return -EINVAL;
 	}

 	if (dai->id == PCM3060_DAI_ID_DAC)
 		reg = PCM3060_REG67;
 	else
 		reg = PCM3060_REG72;

 	regmap_update_bits(priv->regmap, reg, PCM3060_REG_CSEL, val);

 	priv->dai[dai->id].sclk_freq = freq;

 	return 0;
 }

 static int pcm3060_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
 {
 	struct snd_soc_component *comp = dai->component;
 	struct pcm3060_priv *priv = snd_soc_component_get_drvdata(comp);
 	unsigned int reg;
 	unsigned int val;

 	if ((fmt & SND_SOC_DAIFMT_INV_MASK) != SND_SOC_DAIFMT_NB_NF) {
 		dev_err(comp->dev, "unsupported DAI polarity: 0x%x\n", fmt);
 		return -EINVAL;
 	}

 	switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) {
 	case SND_SOC_DAIFMT_CBP_CFP:
 		priv->dai[dai->id].is_provider = true;
 		break;
 	case SND_SOC_DAIFMT_CBC_CFC:
 		priv->dai[dai->id].is_provider = false;
 		break;
 	default:
 		dev_err(comp->dev, "unsupported DAI mode: 0x%x\n", fmt);
 		return -EINVAL;
 	}

 	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
 	case SND_SOC_DAIFMT_I2S:
 		val = PCM3060_REG_FMT_I2S;
 		break;
 	case SND_SOC_DAIFMT_RIGHT_J:
 		val = PCM3060_REG_FMT_RJ;
 		break;
 	case SND_SOC_DAIFMT_LEFT_J:
 		val = PCM3060_REG_FMT_LJ;
 		break;
 	default:
 		dev_err(comp->dev, "unsupported DAI format: 0x%x\n", fmt);
 		return -EINVAL;
 	}

 	if (dai->id == PCM3060_DAI_ID_DAC)
 		reg = PCM3060_REG67;
 	else
 		reg = PCM3060_REG72;

 	regmap_update_bits(priv->regmap, reg, PCM3060_REG_MASK_FMT, val);

 	return 0;
 }

 static int pcm3060_hw_params(struct snd_pcm_substream *substream,
 			     struct snd_pcm_hw_params *params,
 			     struct snd_soc_dai *dai)
 {
 	struct snd_soc_component *comp = dai->component;
 	struct pcm3060_priv *priv = snd_soc_component_get_drvdata(comp);
 	unsigned int rate;
 	unsigned int ratio;
 	unsigned int reg;
 	unsigned int val;

 	if (!priv->dai[dai->id].is_provider) {
 		val = PCM3060_REG_MS_S;
 		goto val_ready;
 	}

 	rate = params_rate(params);
 	if (!rate) {
 		dev_err(comp->dev, "rate is not configured\n");
 		return -EINVAL;
 	}

 	ratio = priv->dai[dai->id].sclk_freq / rate;

 	switch (ratio) {
 	case 768:
 		val = PCM3060_REG_MS_M768;
 		break;
 	case 512:
 		val = PCM3060_REG_MS_M512;
 		break;
 	case 384:
 		val = PCM3060_REG_MS_M384;
 		break;
 	case 256:
 		val = PCM3060_REG_MS_M256;
 		break;
 	case 192:
 		val = PCM3060_REG_MS_M192;
 		break;
 	case 128:
 		val = PCM3060_REG_MS_M128;
 		break;
 	default:
 		dev_err(comp->dev, "unsupported ratio: %d\n", ratio);
 		return -EINVAL;
 	}

 val_ready:
 	if (dai->id == PCM3060_DAI_ID_DAC)
 		reg = PCM3060_REG67;
 	else
 		reg = PCM3060_REG72;

 	regmap_update_bits(priv->regmap, reg, PCM3060_REG_MASK_MS, val);

 	return 0;
 }

 static const struct snd_soc_dai_ops pcm3060_dai_ops = {
 	.set_sysclk = pcm3060_set_sysclk,
 	.set_fmt = pcm3060_set_fmt,
 	.hw_params = pcm3060_hw_params,
 };

 #define PCM3060_DAI_RATES_ADC	(SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_32000 | \
 				 SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 | \
 				 SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000)

 #define PCM3060_DAI_RATES_DAC	(PCM3060_DAI_RATES_ADC | \
 				 SNDRV_PCM_RATE_176400 | SNDRV_PCM_RATE_192000)

 static struct snd_soc_dai_driver pcm3060_dai[] = {
 	{
 		.name = "pcm3060-dac",
 		.id = PCM3060_DAI_ID_DAC,
 		.playback = {
 			.stream_name = "Playback",
 			.channels_min = 2,
 			.channels_max = 2,
 			.rates = PCM3060_DAI_RATES_DAC,
 			.formats = SNDRV_PCM_FMTBIT_S24_LE,
 		},
 		.ops = &pcm3060_dai_ops,
 	},
 	{
 		.name = "pcm3060-adc",
 		.id = PCM3060_DAI_ID_ADC,
 		.capture = {
 			.stream_name = "Capture",
 			.channels_min = 2,
 			.channels_max = 2,
 			.rates = PCM3060_DAI_RATES_ADC,
 			.formats = SNDRV_PCM_FMTBIT_S24_LE,
 		},
 		.ops = &pcm3060_dai_ops,
 	},
 };

 /* dapm */

 static DECLARE_TLV_DB_SCALE(pcm3060_dapm_tlv, -10050, 50, 1);

 static const struct snd_kcontrol_new pcm3060_dapm_controls[] = {
 	SOC_DOUBLE_R_RANGE_TLV("Master Playback Volume",
 			       PCM3060_REG65, PCM3060_REG66, 0,
 			       PCM3060_REG_AT2_MIN, PCM3060_REG_AT2_MAX,
 			       0, pcm3060_dapm_tlv),
 	SOC_DOUBLE("Master Playback Switch", PCM3060_REG68,
 		   PCM3060_REG_SHIFT_MUT21, PCM3060_REG_SHIFT_MUT22, 1, 1),

 	SOC_DOUBLE_R_RANGE_TLV("Master Capture Volume",
 			       PCM3060_REG70, PCM3060_REG71, 0,
 			       PCM3060_REG_AT1_MIN, PCM3060_REG_AT1_MAX,
 			       0, pcm3060_dapm_tlv),
 	SOC_DOUBLE("Master Capture Switch", PCM3060_REG73,
 		   PCM3060_REG_SHIFT_MUT11, PCM3060_REG_SHIFT_MUT12, 1, 1),
 };

 static const struct snd_soc_dapm_widget pcm3060_dapm_widgets[] = {
 	SND_SOC_DAPM_DAC("DAC", "Playback", PCM3060_REG64,
 			 PCM3060_REG_SHIFT_DAPSV, 1),

 	SND_SOC_DAPM_OUTPUT("OUTL"),
 	SND_SOC_DAPM_OUTPUT("OUTR"),

 	SND_SOC_DAPM_INPUT("INL"),
 	SND_SOC_DAPM_INPUT("INR"),

 	SND_SOC_DAPM_ADC("ADC", "Capture", PCM3060_REG64,
 			 PCM3060_REG_SHIFT_ADPSV, 1),
 };

 static const struct snd_soc_dapm_route pcm3060_dapm_map[] = {
 	{ "OUTL", NULL, "DAC" },
 	{ "OUTR", NULL, "DAC" },

 	{ "ADC", NULL, "INL" },
 	{ "ADC", NULL, "INR" },
 };

 /* soc component */

 static const struct snd_soc_component_driver pcm3060_soc_comp_driver = {
 	.controls = pcm3060_dapm_controls,
 	.num_controls = ARRAY_SIZE(pcm3060_dapm_controls),
 	.dapm_widgets = pcm3060_dapm_widgets,
 	.num_dapm_widgets = ARRAY_SIZE(pcm3060_dapm_widgets),
 	.dapm_routes = pcm3060_dapm_map,
 	.num_dapm_routes = ARRAY_SIZE(pcm3060_dapm_map),
 	.endianness = 1,
 };

 /* regmap */

 static bool pcm3060_reg_writeable(struct device *dev, unsigned int reg)
 {
 	return (reg >= PCM3060_REG64);
 }

 static bool pcm3060_reg_readable(struct device *dev, unsigned int reg)
 {
 	return (reg >= PCM3060_REG64);
 }

 static bool pcm3060_reg_volatile(struct device *dev, unsigned int reg)
 {
 	/* PCM3060_REG64 is volatile */
 	return (reg == PCM3060_REG64);
 }

 static const struct reg_default pcm3060_reg_defaults[] = {
 	{ PCM3060_REG64,  0xF0 },
 	{ PCM3060_REG65,  0xFF },
 	{ PCM3060_REG66,  0xFF },
 	{ PCM3060_REG67,  0x00 },
 	{ PCM3060_REG68,  0x00 },
 	{ PCM3060_REG69,  0x00 },
 	{ PCM3060_REG70,  0xD7 },
 	{ PCM3060_REG71,  0xD7 },
 	{ PCM3060_REG72,  0x00 },
 	{ PCM3060_REG73,  0x00 },
 };

 const struct regmap_config pcm3060_regmap = {
 	.reg_bits = 8,
 	.val_bits = 8,
 	.writeable_reg = pcm3060_reg_writeable,
 	.readable_reg = pcm3060_reg_readable,
 	.volatile_reg = pcm3060_reg_volatile,
 	.max_register = PCM3060_REG73,
 	.reg_defaults = pcm3060_reg_defaults,
 	.num_reg_defaults = ARRAY_SIZE(pcm3060_reg_defaults),
 	.cache_type = REGCACHE_RBTREE,
 };
 EXPORT_SYMBOL(pcm3060_regmap);

 /* device */

 static void pcm3060_parse_dt(const struct device_node *np,
 			     struct pcm3060_priv *priv)
 {
 	priv->out_se = of_property_read_bool(np, "ti,out-single-ended");
 }

 int pcm3060_probe(struct device *dev)
 {
 	int rc;
 	struct pcm3060_priv *priv = dev_get_drvdata(dev);

 	/* soft reset */
 	rc = regmap_update_bits(priv->regmap, PCM3060_REG64,
 				PCM3060_REG_MRST, 0);
 	if (rc) {
 		dev_err(dev, "failed to reset component, rc=%d\n", rc);
 		return rc;
 	}

 	if (dev->of_node)
 		pcm3060_parse_dt(dev->of_node, priv);

 	if (priv->out_se)
 		regmap_update_bits(priv->regmap, PCM3060_REG64,
 				   PCM3060_REG_SE, PCM3060_REG_SE);

 	rc = devm_snd_soc_register_component(dev, &pcm3060_soc_comp_driver,
 					     pcm3060_dai,
 					     ARRAY_SIZE(pcm3060_dai));
 	if (rc) {
 		dev_err(dev, "failed to register component, rc=%d\n", rc);
 		return rc;
 	}

 	return 0;
 }
 EXPORT_SYMBOL(pcm3060_probe);

 MODULE_DESCRIPTION("PCM3060 codec driver");
 MODULE_AUTHOR("Kirill Marinushkin <kmarinushkin@birdec.com>");
 MODULE_LICENSE("GPL v2");
	// SPDX-License-Identifier: GPL-2.0
	//
	// PCM3060 codec driver
	//
	// Copyright (C) 2018 Kirill Marinushkin <kmarinushkin@birdec.com>

	#include <linux/module.h>
	#include <sound/pcm_params.h>
	#include <sound/soc.h>
	#include <sound/tlv.h>

	#include "pcm3060.h"

	/* dai */

	static int pcm3060_set_sysclk(struct snd_soc_dai *dai, int clk_id,
	unsigned int freq, int dir)
	{
	struct snd_soc_component *comp = dai->component;
	struct pcm3060_priv *priv = snd_soc_component_get_drvdata(comp);
	unsigned int reg;
	unsigned int val;

	if (dir != SND_SOC_CLOCK_IN) {
	dev_err(comp->dev, "unsupported sysclock dir: %d\n", dir);
	return -EINVAL;
	}

	switch (clk_id) {
	case PCM3060_CLK_DEF:
	val = 0;
	break;

	case PCM3060_CLK1:
	val = (dai->id == PCM3060_DAI_ID_DAC ? PCM3060_REG_CSEL : 0);
	break;

	case PCM3060_CLK2:
	val = (dai->id == PCM3060_DAI_ID_DAC ? 0 : PCM3060_REG_CSEL);
	break;

	default:
	dev_err(comp->dev, "unsupported sysclock id: %d\n", clk_id);
	return -EINVAL;
	}

	if (dai->id == PCM3060_DAI_ID_DAC)
	reg = PCM3060_REG67;
	else
	reg = PCM3060_REG72;

	regmap_update_bits(priv->regmap, reg, PCM3060_REG_CSEL, val);

	priv->dai[dai->id].sclk_freq = freq;

	return 0;
	}

	static int pcm3060_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
	{
	struct snd_soc_component *comp = dai->component;
	struct pcm3060_priv *priv = snd_soc_component_get_drvdata(comp);
	unsigned int reg;
	unsigned int val;

	if ((fmt & SND_SOC_DAIFMT_INV_MASK) != SND_SOC_DAIFMT_NB_NF) {
	dev_err(comp->dev, "unsupported DAI polarity: 0x%x\n", fmt);
	return -EINVAL;
	}

	switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) {
	case SND_SOC_DAIFMT_CBP_CFP:
	priv->dai[dai->id].is_provider = true;
	break;
	case SND_SOC_DAIFMT_CBC_CFC:
	priv->dai[dai->id].is_provider = false;
	break;
	default:
	dev_err(comp->dev, "unsupported DAI mode: 0x%x\n", fmt);
	return -EINVAL;
	}

	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
	case SND_SOC_DAIFMT_I2S:
	val = PCM3060_REG_FMT_I2S;
	break;
	case SND_SOC_DAIFMT_RIGHT_J:
	val = PCM3060_REG_FMT_RJ;
	break;
	case SND_SOC_DAIFMT_LEFT_J:
	val = PCM3060_REG_FMT_LJ;
	break;
	default:
	dev_err(comp->dev, "unsupported DAI format: 0x%x\n", fmt);
	return -EINVAL;
	}

	if (dai->id == PCM3060_DAI_ID_DAC)
	reg = PCM3060_REG67;
	else
	reg = PCM3060_REG72;

	regmap_update_bits(priv->regmap, reg, PCM3060_REG_MASK_FMT, val);

	return 0;
	}

	static int pcm3060_hw_params(struct snd_pcm_substream *substream,
	struct snd_pcm_hw_params *params,
	struct snd_soc_dai *dai)
	{
	struct snd_soc_component *comp = dai->component;
	struct pcm3060_priv *priv = snd_soc_component_get_drvdata(comp);
	unsigned int rate;
	unsigned int ratio;
	unsigned int reg;
	unsigned int val;

	if (!priv->dai[dai->id].is_provider) {
	val = PCM3060_REG_MS_S;
	goto val_ready;
	}

	rate = params_rate(params);
	if (!rate) {
	dev_err(comp->dev, "rate is not configured\n");
	return -EINVAL;
	}

	ratio = priv->dai[dai->id].sclk_freq / rate;

	switch (ratio) {
	case 768:
	val = PCM3060_REG_MS_M768;
	break;
	case 512:
	val = PCM3060_REG_MS_M512;
	break;
	case 384:
	val = PCM3060_REG_MS_M384;
	break;
	case 256:
	val = PCM3060_REG_MS_M256;
	break;
	case 192:
	val = PCM3060_REG_MS_M192;
	break;
	case 128:
	val = PCM3060_REG_MS_M128;
	break;
	default:
	dev_err(comp->dev, "unsupported ratio: %d\n", ratio);
	return -EINVAL;
	}

	val_ready:
	if (dai->id == PCM3060_DAI_ID_DAC)
	reg = PCM3060_REG67;
	else
	reg = PCM3060_REG72;

	regmap_update_bits(priv->regmap, reg, PCM3060_REG_MASK_MS, val);

	return 0;
	}

	static const struct snd_soc_dai_ops pcm3060_dai_ops = {
	.set_sysclk = pcm3060_set_sysclk,
	.set_fmt = pcm3060_set_fmt,
	.hw_params = pcm3060_hw_params,
	};

	#define PCM3060_DAI_RATES_ADC (SNDRV_PCM_RATE_16000 \| SNDRV_PCM_RATE_32000 \| \
	SNDRV_PCM_RATE_44100 \| SNDRV_PCM_RATE_48000 \| \
	SNDRV_PCM_RATE_88200 \| SNDRV_PCM_RATE_96000)

	#define PCM3060_DAI_RATES_DAC (PCM3060_DAI_RATES_ADC \| \
	SNDRV_PCM_RATE_176400 \| SNDRV_PCM_RATE_192000)

	static struct snd_soc_dai_driver pcm3060_dai[] = {
	{
	.name = "pcm3060-dac",
	.id = PCM3060_DAI_ID_DAC,
	.playback = {
	.stream_name = "Playback",
	.channels_min = 2,
	.channels_max = 2,
	.rates = PCM3060_DAI_RATES_DAC,
	.formats = SNDRV_PCM_FMTBIT_S24_LE,
	},
	.ops = &pcm3060_dai_ops,
	},
	{
	.name = "pcm3060-adc",
	.id = PCM3060_DAI_ID_ADC,
	.capture = {
	.stream_name = "Capture",
	.channels_min = 2,
	.channels_max = 2,
	.rates = PCM3060_DAI_RATES_ADC,
	.formats = SNDRV_PCM_FMTBIT_S24_LE,
	},
	.ops = &pcm3060_dai_ops,
	},
	};

	/* dapm */

	static DECLARE_TLV_DB_SCALE(pcm3060_dapm_tlv, -10050, 50, 1);

	static const struct snd_kcontrol_new pcm3060_dapm_controls[] = {
	SOC_DOUBLE_R_RANGE_TLV("Master Playback Volume",
	PCM3060_REG65, PCM3060_REG66, 0,
	PCM3060_REG_AT2_MIN, PCM3060_REG_AT2_MAX,
	0, pcm3060_dapm_tlv),
	SOC_DOUBLE("Master Playback Switch", PCM3060_REG68,
	PCM3060_REG_SHIFT_MUT21, PCM3060_REG_SHIFT_MUT22, 1, 1),

	SOC_DOUBLE_R_RANGE_TLV("Master Capture Volume",
	PCM3060_REG70, PCM3060_REG71, 0,
	PCM3060_REG_AT1_MIN, PCM3060_REG_AT1_MAX,
	0, pcm3060_dapm_tlv),
	SOC_DOUBLE("Master Capture Switch", PCM3060_REG73,
	PCM3060_REG_SHIFT_MUT11, PCM3060_REG_SHIFT_MUT12, 1, 1),
	};

	static const struct snd_soc_dapm_widget pcm3060_dapm_widgets[] = {
	SND_SOC_DAPM_DAC("DAC", "Playback", PCM3060_REG64,
	PCM3060_REG_SHIFT_DAPSV, 1),

	SND_SOC_DAPM_OUTPUT("OUTL"),
	SND_SOC_DAPM_OUTPUT("OUTR"),

	SND_SOC_DAPM_INPUT("INL"),
	SND_SOC_DAPM_INPUT("INR"),

	SND_SOC_DAPM_ADC("ADC", "Capture", PCM3060_REG64,
	PCM3060_REG_SHIFT_ADPSV, 1),
	};

	static const struct snd_soc_dapm_route pcm3060_dapm_map[] = {
	{ "OUTL", NULL, "DAC" },
	{ "OUTR", NULL, "DAC" },

	{ "ADC", NULL, "INL" },
	{ "ADC", NULL, "INR" },
	};

	/* soc component */

	static const struct snd_soc_component_driver pcm3060_soc_comp_driver = {
	.controls = pcm3060_dapm_controls,
	.num_controls = ARRAY_SIZE(pcm3060_dapm_controls),
	.dapm_widgets = pcm3060_dapm_widgets,
	.num_dapm_widgets = ARRAY_SIZE(pcm3060_dapm_widgets),
	.dapm_routes = pcm3060_dapm_map,
	.num_dapm_routes = ARRAY_SIZE(pcm3060_dapm_map),
	.endianness = 1,
	};

	/* regmap */

	static bool pcm3060_reg_writeable(struct device *dev, unsigned int reg)
	{
	return (reg >= PCM3060_REG64);
	}

	static bool pcm3060_reg_readable(struct device *dev, unsigned int reg)
	{
	return (reg >= PCM3060_REG64);
	}

	static bool pcm3060_reg_volatile(struct device *dev, unsigned int reg)
	{
	/* PCM3060_REG64 is volatile */
	return (reg == PCM3060_REG64);
	}

	static const struct reg_default pcm3060_reg_defaults[] = {
	{ PCM3060_REG64, 0xF0 },
	{ PCM3060_REG65, 0xFF },
	{ PCM3060_REG66, 0xFF },
	{ PCM3060_REG67, 0x00 },
	{ PCM3060_REG68, 0x00 },
	{ PCM3060_REG69, 0x00 },
	{ PCM3060_REG70, 0xD7 },
	{ PCM3060_REG71, 0xD7 },
	{ PCM3060_REG72, 0x00 },
	{ PCM3060_REG73, 0x00 },
	};

	const struct regmap_config pcm3060_regmap = {
	.reg_bits = 8,
	.val_bits = 8,
	.writeable_reg = pcm3060_reg_writeable,
	.readable_reg = pcm3060_reg_readable,
	.volatile_reg = pcm3060_reg_volatile,
	.max_register = PCM3060_REG73,
	.reg_defaults = pcm3060_reg_defaults,
	.num_reg_defaults = ARRAY_SIZE(pcm3060_reg_defaults),
	.cache_type = REGCACHE_RBTREE,
	};
	EXPORT_SYMBOL(pcm3060_regmap);

	/* device */

	static void pcm3060_parse_dt(const struct device_node *np,
	struct pcm3060_priv *priv)
	{
	priv->out_se = of_property_read_bool(np, "ti,out-single-ended");
	}

	int pcm3060_probe(struct device *dev)
	{
	int rc;
	struct pcm3060_priv *priv = dev_get_drvdata(dev);

	/* soft reset */
	rc = regmap_update_bits(priv->regmap, PCM3060_REG64,
	PCM3060_REG_MRST, 0);
	if (rc) {
	dev_err(dev, "failed to reset component, rc=%d\n", rc);
	return rc;
	}

	if (dev->of_node)
	pcm3060_parse_dt(dev->of_node, priv);

	if (priv->out_se)
	regmap_update_bits(priv->regmap, PCM3060_REG64,
	PCM3060_REG_SE, PCM3060_REG_SE);

	rc = devm_snd_soc_register_component(dev, &pcm3060_soc_comp_driver,
	pcm3060_dai,
	ARRAY_SIZE(pcm3060_dai));
	if (rc) {
	dev_err(dev, "failed to register component, rc=%d\n", rc);
	return rc;
	}

	return 0;
	}
	EXPORT_SYMBOL(pcm3060_probe);

	MODULE_DESCRIPTION("PCM3060 codec driver");
	MODULE_AUTHOR("Kirill Marinushkin <kmarinushkin@birdec.com>");
	MODULE_LICENSE("GPL v2");