path: root/tas2505.c

/*
 * ALSA SoC TAS2505 codec driver
 *
 * Author: Hieu Tran Dang <dangtranhieu2012@gmail.com>
 *
 * This package is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 * THIS PACKAGE IS PROVIDED AS IS AND WITHOUT ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 */
#include <linux/version.h>
#include <linux/module.h>
#include <linux/i2c.h>
#include <linux/clk.h>
#include <linux/of.h>
#include <linux/of_gpio.h>
#include <sound/soc.h>
#include <sound/tlv.h>
#include <sound/pcm_params.h>
#include "tas2505.h"

enum {
	MCLK = 0,
	BCLK = 1,
};

struct tas2505
{
	int dac_vol;
	int spk_vol1;
}tas2505_vol;


static int tas2505_dac_getvol(struct snd_kcontrol *kcontrol,
	struct snd_ctl_elem_value *ucontrol)
{
	ucontrol->value.integer.value[0] = tas2505_vol.dac_vol;

	return 0;
}

static int tas2505_dac_putvol(struct snd_kcontrol *kcontrol,
	struct snd_ctl_elem_value *ucontrol)
{
	struct snd_soc_component *component =
		snd_soc_kcontrol_component(kcontrol);
	struct soc_mixer_control *mc =
		(struct soc_mixer_control *)kcontrol->private_value;
	u8 val;

	val = ucontrol->value.integer.value[0];
	val = mc->invert ? mc->max - val : val;
	val = (val < 0) ? 0 : val;
	tas2505_vol.dac_vol = val;
	snd_soc_component_write(component, TAS2505_DACVOL, val);

	return 0;
}

static int tas2505_spkdrv_getvol(struct snd_kcontrol *kcontrol,
	struct snd_ctl_elem_value *ucontrol)
{
	struct snd_soc_component *component =
		snd_soc_kcontrol_component(kcontrol);
	struct soc_mixer_control *mc =
		(struct soc_mixer_control *)kcontrol->private_value;
	unsigned int val;

	val = snd_soc_component_read(component, TAS2505_SPKVOL1);

	val = (val > mc->max) ? mc->max : val;
	val = mc->invert ? mc->max - val : val;
	ucontrol->value.integer.value[0] = val;
	tas2505_vol.spk_vol1 = val;
	return 0;
}

static int tas2505_spkdrv_putvol(struct snd_kcontrol *kcontrol,
	struct snd_ctl_elem_value *ucontrol)
{
	struct snd_soc_component *component =
		snd_soc_kcontrol_component(kcontrol);
	struct soc_mixer_control *mc =
		(struct soc_mixer_control *)kcontrol->private_value;
	u8 val;

	val = (ucontrol->value.integer.value[0] & 0x7f);
	val = mc->invert ? mc->max - val : val;
	val = (val < 0) ? 0 : val;
	tas2505_vol.spk_vol1 = val;
	snd_soc_component_write(component, TAS2505_SPKVOL1, val);

	return 0;
}

static const DECLARE_TLV_DB_SCALE(dac_vol_tlv, -6350, 50, 0);
static const DECLARE_TLV_DB_LINEAR(spk_drv_vol_tlv, TLV_DB_GAIN_MUTE, 0);
static const DECLARE_TLV_DB_SCALE(spk_amp_vol_tlv, 0, 600, 1);

static const struct snd_kcontrol_new tas2505_snd_controls[] = {
	SOC_SINGLE_RANGE_EXT_TLV("DAC Playback Volume", TAS2505_DACVOL,
		0, 48, 0x81, 1,
		tas2505_dac_getvol, tas2505_dac_putvol, dac_vol_tlv),
	SOC_SINGLE_RANGE_EXT_TLV("Speaker Driver Volume", TAS2505_SPKVOL1,
		0, 0, 117, 1,
		tas2505_spkdrv_getvol, tas2505_spkdrv_putvol, spk_drv_vol_tlv),
	SOC_SINGLE_TLV("Speaker Amplifer Volume", TAS2505_SPKVOL2,
		4, 5, 0, spk_amp_vol_tlv),
};

static const struct snd_soc_dapm_widget tas2505_dapm_widgets[] = {
	SND_SOC_DAPM_DAC("DAC Channel", "Playback",
		TAS2505_DACSETUP1, 7, 0),
	SND_SOC_DAPM_OUT_DRV("Speaker Driver", TAS2505_SPKAMPCTRL1,
		1, 0, NULL, 0),
	SND_SOC_DAPM_OUTPUT("Speaker"),
};

static const struct snd_soc_dapm_route tas2505_audio_map[] = {
	{ "Speaker Driver", NULL, "DAC Channel" },
	{ "Speaker", NULL, "Speaker Driver" },
};

static const struct reg_default tas2505_reg_defaults[] = {
	{ TAS2505_CLKMUX, 0x00 },
	{ TAS2505_PLLPR, 0x11 },
	{ TAS2505_PLLJ, 0x04 },
	{ TAS2505_PLLDMSB, 0x00 },
	{ TAS2505_PLLDLSB, 0x00 },
	{ TAS2505_NDAC, 0x01 },
	{ TAS2505_MDAC, 0x01 },
	{ TAS2505_DOSRMSB, 0x00 },
	{ TAS2505_DOSRLSB, 0x80 },
	{ TAS2505_IFACE1, 0x00 },
	{ TAS2505_IFACE3, 0x00 },
	{ TAS2505_DACSETUP1, 0x14 },
	{ TAS2505_DACSETUP2, 0x0c },
	{ TAS2505_DACVOL, 0x00 },
	{ TAS2505_REF_POR_LDO_BGAP_CTRL, 0x00 },
	{ TAS2505_LDO_CTRL, 0x0c },
	{ TAS2505_SPKAMPCTRL1, 0x00 },
	{ TAS2505_SPKVOL1, 0x00 },
	{ TAS2505_SPKVOL2, 0x50 },
	{ TAS2505_DACFLAG1, 0x00 },
	{ TAS2505_DACFLAG2, 0x00 },
	{ TAS2505_STICKYFLAG1, 0x00 },
	{ TAS2505_STICKYFLAG2, 0x00 },
	{ TAS2505_INTFLAG1, 0x00 },
	{ TAS2505_INTFLAG2, 0x00 },
	{ TAS2505_DACINSTRSET, 0x02 },
	{ TAS2505_DACANLGAINFLAG, 0x00 },
};

static bool tas2505_volatile(struct device *dev, unsigned int reg)
{
	switch (reg) {
	case TAS2505_PAGECTL:
	case TAS2505_RESET:
	case TAS2505_DACFLAG1:
	case TAS2505_DACFLAG2:
	case TAS2505_STICKYFLAG1:
	case TAS2505_STICKYFLAG2:
	case TAS2505_INTFLAG1:
	case TAS2505_INTFLAG2:
	case TAS2505_DACANLGAINFLAG:
		return true;
	}
	return false;
}

static bool tas2505_writeable(struct device *dev, unsigned int reg)
{
	switch (reg) {
	case TAS2505_DACFLAG1:
	case TAS2505_DACFLAG2:
	case TAS2505_STICKYFLAG1:
	case TAS2505_STICKYFLAG2:
	case TAS2505_INTFLAG1:
	case TAS2505_INTFLAG2:
	case TAS2505_DACANLGAINFLAG:
		return false;
	}
	return true;
}

static const struct regmap_range_cfg tas2505_ranges[] = {
	{
		.range_min = 0,
		.range_max = 69 * 128,
		.selector_reg = TAS2505_PAGECTL,
		.selector_mask = 0xff,
		.selector_shift = 0,
		.window_start = 0,
		.window_len = 128,
	},
};

static const struct regmap_config tas2505_i2c_regmap = {
	.reg_bits = 8,
	.val_bits = 8,
	.writeable_reg = tas2505_writeable,
	.volatile_reg = tas2505_volatile,
	.reg_defaults = tas2505_reg_defaults,
	.num_reg_defaults = ARRAY_SIZE(tas2505_reg_defaults),
	.cache_type = REGCACHE_RBTREE,
	.ranges = tas2505_ranges,
	.num_ranges = ARRAY_SIZE(tas2505_ranges),
	.max_register = 69 * 128,
};

struct tas2505_rate_divs {
	u32 mclk_p;
	u32 rate;
	u8 pll_r;
	u8 pll_j;
	u16 pll_d;
	u8 mdac;
	u8 ndac;
	u16 dosr;
};

static const struct tas2505_rate_divs tas2505_divs_mclksrc[] = {
	{ 12288000, 44100, 1, 7, 35, 4, 4, 128 },
	{ 12288000, 48000, 1, 7, 0, 7, 2, 128 },
	{ 2822400, 44100, 1, 8, 4672, 3, 5, 128 },
	{ 11289600, 44100, 1, 8, 0, 4, 8, 64 },
	{ 11289600, 22050, 1, 8, 0, 4, 8, 128 },
	{ 2822400, 44100, 1, 8, 4672, 3, 5, 128 },
	{ 2822400, 22050, 1, 8, 4672, 3, 5, 256 },
};

static const struct tas2505_rate_divs tas2505_divs_bclksrc[] = {
	{ 1536000, 48000, 1, 56, 0, 2, 7, 128 },
	{ 1411200, 44100, 1, 60, 0, 5, 3, 128 },
	{ 3072000, 48000, 1, 28, 0, 2, 7, 128 },
	{ 2822400, 44100, 1, 30, 0, 5, 3, 128 },
	{ 1024000, 32000, 2, 40, 0, 5, 4, 128 },
	{ 2048000, 32000, 1, 40, 0, 5, 4, 128 },
};

struct tas2505_priv {
	void *codec;
	struct device *dev;
	struct regmap *regmap;
	u32 sysclk;
	u32 clk_src;
	u32 rate;
	int rate_div_line;
	int pll_clkin;
	int frame_size;
	u8 p_div;
};

static int tas2505_setup_pll(struct snd_soc_component *codec)
{
	struct tas2505_priv *tas2505 = snd_soc_component_get_drvdata(codec);
	int mclk_p = tas2505->sysclk / tas2505->p_div;
	struct tas2505_rate_divs *rate_divs;
	int match = -1;
	u8 p_div;
	int i;

	if (tas2505->clk_src == MCLK) {
		for (i = 0; i < ARRAY_SIZE(tas2505_divs_mclksrc); i++) {
			if (
				tas2505_divs_mclksrc[i].rate == tas2505->rate &&
				tas2505_divs_mclksrc[i].mclk_p == mclk_p
			) {
				match = i;
				break;
			}
		}

		if (match == -1) {
			dev_err(codec->dev,
				"Sample rate (%u) and format not supported\n",
				tas2505->rate);
			return -EINVAL;
		}

		tas2505->rate_div_line = match;
		rate_divs = (struct tas2505_rate_divs *)tas2505_divs_mclksrc;
	} else {
		for (i = 0; i < ARRAY_SIZE(tas2505_divs_bclksrc); i++) {
			if (tas2505_divs_bclksrc[i].rate ==
				tas2505->rate) {
				match = i;
				break;
			}
		}

		if (match == -1) {
			dev_err(codec->dev,
				"Sample rate (%u) and format not supported\n",
				tas2505->rate);
			return -EINVAL;
		}
		rate_divs = (struct tas2505_rate_divs *)tas2505_divs_bclksrc;
	}

	p_div = (tas2505->p_div == 8) ? 0 : tas2505->p_div;
	p_div <<= TAS2505_PLLPR_P_SHIFT;
	p_div |= rate_divs[match].pll_r;
	p_div |= TAS2505_PM_MASK;

	snd_soc_component_write(codec, TAS2505_PLLPR, p_div);
	snd_soc_component_write(codec, TAS2505_PLLJ,
		rate_divs[match].pll_j);
	snd_soc_component_write(codec, TAS2505_PLLDMSB,
		rate_divs[match].pll_d >> 8);
	snd_soc_component_write(codec, TAS2505_PLLDLSB,
		rate_divs[match].pll_d & 0xff);
	mdelay(15);
	snd_soc_component_write(codec, TAS2505_NDAC,
		TAS2505_PM_MASK | rate_divs[match].ndac);
	snd_soc_component_write(codec, TAS2505_MDAC,
		TAS2505_PM_MASK | rate_divs[match].mdac);
	snd_soc_component_write(codec, TAS2505_DOSRMSB,
		rate_divs[match].dosr >> 8);
	snd_soc_component_write(codec, TAS2505_DOSRLSB,
		rate_divs[match].dosr & 0xff);
	if (tas2505->clk_src != MCLK)
		snd_soc_component_update_bits(codec, TAS2505_BCLKNDIV,
			TAS2505_BCLKNDIV_MASK,
			(rate_divs[match].dosr * rate_divs[match].mdac) /
			tas2505->frame_size);

	return 0;
}

static int tas2505_hw_params(struct snd_pcm_substream *substream,
	struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
{
	struct snd_soc_component *codec = dai->component;
	struct tas2505_priv *tas2505 = snd_soc_component_get_drvdata(codec);
	u8 data = 0;

	switch (params_width(params)) {
	case 16:
		break;

	case 20:
		data = TAS2505_WORD_LEN_20BITS;
		break;

	case 24:
		data = TAS2505_WORD_LEN_24BITS;
		break;

	case 32:
		data = TAS2505_WORD_LEN_32BITS;
		break;

	default:
		dev_err(codec->dev, "Unsupported width %d\n",
			params_width(params));
		return -EINVAL;
	}
	dev_info(codec->dev, "%s: bit width = %d\n",
				__func__, params_width(params));
	data <<= TAS2505_IFACE1_DATALEN_SHIFT;

	snd_soc_component_update_bits(codec, TAS2505_IFACE1,
		TAS2505_IFACE1_DATALEN_MASK, data);
	tas2505->rate = params_rate(params);
	tas2505->frame_size = snd_soc_params_to_frame_size(params);

	return tas2505_setup_pll(codec);
}

static int tas2505_dac_mute(struct snd_soc_dai *dai, int mute,
	int stream)
{
	struct snd_soc_component *codec = dai->component;

	if (mute) {
		snd_soc_component_write(codec, TAS2505_DACVOL, 0x81);
		snd_soc_component_update_bits(codec, TAS2505_DACSETUP2,
			TAS2505_DACSETUP2_MUTE_MASK,
			TAS2505_DACSETUP2_MUTE_MASK);
		mdelay(25);
		snd_soc_component_update_bits(codec, TAS2505_DACSETUP1, 0x80, 0x00);
	} else {
		snd_soc_component_update_bits(codec, TAS2505_DACSETUP1, 0x80, 0x80);
		mdelay(25);
		snd_soc_component_write(codec, TAS2505_DACVOL, tas2505_vol.dac_vol); 
		snd_soc_component_update_bits(codec, TAS2505_DACSETUP2,
			TAS2505_DACSETUP2_MUTE_MASK, 0x0);
	}

	return 0;
}

static int tas2505_set_dai_fmt(struct snd_soc_dai *codec_dai,
	unsigned int fmt)
{
	struct snd_soc_component *codec = codec_dai->component;
	u8 iface_reg1 = 0;
	u8 iface_reg3 = 0;

	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
	case SND_SOC_DAIFMT_CBS_CFS:
		break;

	case SND_SOC_DAIFMT_CBM_CFM:
		iface_reg1 |= TAS2505_IFACE1_BCLKDIR_MASK;
		iface_reg1 |= TAS2505_IFACE1_WCLKDIR_MASK;
		break;

	default:
		dev_err(codec->dev,
			"%s SND_SOC_DAIFMT_MASTER_MASK 0x%x \n",__FUNCTION__,fmt);
		return -EINVAL;
	}

	switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
	case SND_SOC_DAIFMT_NB_NF:
		break;

	case SND_SOC_DAIFMT_IB_NF:
		iface_reg3 |= TAS2505_IFACE3_BCLKINV_MASK;
		break;

	default:
		dev_err(codec->dev,
			"tas2505_set_dai_fmt SND_SOC_DAIFMT_INV_MASK 0x%x \n",fmt);
		return -EINVAL;
	}

	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
	case SND_SOC_DAIFMT_I2S:
		break;

	case SND_SOC_DAIFMT_DSP_A:
	case SND_SOC_DAIFMT_DSP_B:
		iface_reg1 |= (TAS2505_DSP_MODE <<
			TAS2505_IFACE1_INTERFACE_SHIFT);
		break;

	case SND_SOC_DAIFMT_RIGHT_J:
		iface_reg1 |= (TAS2505_RJF_MODE <<
			TAS2505_IFACE1_INTERFACE_SHIFT);
		break;

	case SND_SOC_DAIFMT_LEFT_J:
		iface_reg1 |= (TAS2505_LJF_MODE <<
			TAS2505_IFACE1_INTERFACE_SHIFT);
		break;

	default:
		dev_err(codec->dev, "Invalid DAI interface format\n");
		return -EINVAL;
	}

	snd_soc_component_write(codec, TAS2505_IFACE1, iface_reg1);
	snd_soc_component_update_bits(codec, TAS2505_IFACE3,
		TAS2505_IFACE3_BCLKINV_MASK | TAS2505_IFACE3_BDIVCLKIN_MASK,
		iface_reg3);

	return 0;
}

static int tas2505_set_dai_sysclk(struct snd_soc_dai *codec_dai,
	int clk_id, unsigned int freq, int dir)
{
	struct snd_soc_component *codec = codec_dai->component;
	struct tas2505_priv *tas2505 = snd_soc_component_get_drvdata(codec);
	int i, x;
	int ret = 0;

	dev_info(tas2505->dev, "%s: clk_id: %d, freq: %d\n",
		__func__, clk_id, freq);

	if (tas2505->clk_src == MCLK) {
		for (i = 0; i < ARRAY_SIZE(tas2505_divs_mclksrc); i++) {
			for (x = 1; x < 9; x++) {
				if ((freq / x) == tas2505_divs_mclksrc[i].mclk_p) {
					tas2505->p_div = x;
					break;
				}
			}
			if (x < 9)
				break;
		}

		if (i != ARRAY_SIZE(tas2505_divs_mclksrc)) {
		} else {
			dev_err(tas2505->dev,
				"Can't produce required "
				"PLL_CLKIN frequency\n");
			ret = -EINVAL;
		}
		tas2505->pll_clkin = clk_id;
	} else {
		tas2505->pll_clkin = 1;
		tas2505->p_div = 1;
	}

	if (!ret) {
		snd_soc_component_write(codec, TAS2505_CLKMUX,
			(tas2505->pll_clkin << TAS2505_PLL_CLKIN_SHIFT) |
			TAS2505_CODEC_CLKIN_PLL);

		tas2505->sysclk = freq;
	}
	return ret;

}

static void tas2505_power_on(struct snd_soc_component *codec)
{
	snd_soc_component_update_bits(codec, TAS2505_LDO_CTRL,
		TAS2505_LDO_PLL_HP_LVL_MASK, 0);
	snd_soc_component_update_bits(codec, TAS2505_REF_POR_LDO_BGAP_CTRL,
		TAS2505_REF_POR_LDO_BGAP_MASTER_REF_MASK,
		TAS2505_REF_POR_LDO_BGAP_MASTER_REF_MASK);
}

static void tas2505_power_off(struct snd_soc_component *codec)
{
	snd_soc_component_update_bits(codec, TAS2505_REF_POR_LDO_BGAP_CTRL,
		TAS2505_REF_POR_LDO_BGAP_MASTER_REF_MASK, 0);
	snd_soc_component_update_bits(codec, TAS2505_LDO_CTRL,
		TAS2505_LDO_PLL_HP_LVL_MASK,
		TAS2505_LDO_PLL_HP_LVL_MASK);
}

static int tas2505_set_bias_level(struct snd_soc_component *codec,
	enum snd_soc_bias_level level)
{
	int current_lvl = snd_soc_component_get_bias_level(codec);
	int rc = 0;

	switch (level) {
	case SND_SOC_BIAS_ON:
		break;
	case SND_SOC_BIAS_PREPARE:
		break;
	case SND_SOC_BIAS_STANDBY:
		if (current_lvl == SND_SOC_BIAS_OFF) {
			tas2505_power_on(codec);
			dev_info(codec->dev,
				"%s:power on\n", __func__);
		} else
			dev_info(codec->dev,
				"%s:SND_SOC_BIAS_STANDBY\n",
				__func__);
		break;
	case SND_SOC_BIAS_OFF:
		if (current_lvl == SND_SOC_BIAS_STANDBY) {
			tas2505_power_off(codec);
			dev_info(codec->dev,
				"%s:power off\n",
				__func__);
		} else
			dev_info(codec->dev,
				"%s:SND_SOC_BIAS_OFF\n",
				__func__);
		break;
	default:
		dev_err(codec->dev, "Invalid bias level\n");
		rc = -EINVAL;
	}

	return rc;
}

static int tas2505_codec_probe(struct snd_soc_component *codec)
{
	struct tas2505_priv *tas2505 = snd_soc_component_get_drvdata(codec);

	tas2505->codec = codec;
	tas2505_vol.dac_vol = 0x00;
	tas2505_vol.spk_vol1 = 0x00;

	snd_soc_component_write(codec, TAS2505_RESET, 1);

	return 0;
}

static const struct snd_soc_component_driver soc_codec_driver_tas2505 = {
	.probe			= tas2505_codec_probe,
	.set_bias_level		= tas2505_set_bias_level,
	.suspend_bias_off	= true,

	.controls		= tas2505_snd_controls,
	.num_controls		= ARRAY_SIZE(tas2505_snd_controls),
	.dapm_widgets		= tas2505_dapm_widgets,
	.num_dapm_widgets	= ARRAY_SIZE(tas2505_dapm_widgets),
	.dapm_routes		= tas2505_audio_map,
	.num_dapm_routes	= ARRAY_SIZE(tas2505_audio_map),
};

static const struct snd_soc_dai_ops tas2505_dai_ops = {
	.hw_params	= tas2505_hw_params,
	.set_sysclk	= tas2505_set_dai_sysclk,
	.set_fmt	= tas2505_set_dai_fmt,
	.mute_stream	= tas2505_dac_mute,
};

static struct snd_soc_dai_driver tas2505_dai_driver[] = {
	{
		.name = "tas2505-hifi",
		.playback = {
			.stream_name	= "Playback",
			.channels_min	= 1,
			.channels_max	= 2,
			.rates		= TAS2505_RATES,
			.formats	= TAS2505_FORMATS,
		},
		.ops = &tas2505_dai_ops,
		.symmetric_rates = 1,
	},
};

static int tas2505_i2c_probe(struct i2c_client *i2c,
	const struct i2c_device_id *id)
{
	struct tas2505_priv *tas2505;
	struct device_node *np = i2c->dev.of_node;
	const struct regmap_config *regmap_config = &tas2505_i2c_regmap;
	int ret;

	tas2505 = devm_kzalloc(&i2c->dev, sizeof(*tas2505), GFP_KERNEL);
	if (tas2505 == NULL)
		return -ENOMEM;

	tas2505->regmap = devm_regmap_init_i2c(i2c, regmap_config);
	if (IS_ERR(tas2505->regmap)) {
		ret = PTR_ERR(tas2505->regmap);
		dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
			ret);
		return ret;
	}

	ret = of_get_named_gpio(np, "gpio-reset", 0);
	if ((ret > 0) && gpio_is_valid(ret)) {
		devm_gpio_request_one(&i2c->dev, ret, GPIOF_OUT_INIT_HIGH,
			"reset");
	}

	ret = of_property_read_u32(np, "clock-source",
			&tas2505->clk_src);

	dev_info(&i2c->dev, "%s: clock-source = %s\n", __func__,
		tas2505->clk_src?"BCLK":"MCLK");

	tas2505->dev = &i2c->dev;

	dev_set_drvdata(tas2505->dev, tas2505);

	return snd_soc_register_component(&i2c->dev,
		&soc_codec_driver_tas2505, tas2505_dai_driver,
		ARRAY_SIZE(tas2505_dai_driver));
}

static int tas2505_i2c_remove(struct i2c_client *i2c)
{

	snd_soc_unregister_component(&i2c->dev);

	return 0;
}

static const struct of_device_id tas2505_of_match[] = {
	{ .compatible = "ti,tas2505" },
	{},
};
MODULE_DEVICE_TABLE(of, tas2505_of_match);

static const struct i2c_device_id tas2505_i2c_id[] = {
	{ "tas2505", 0 },
	{}
};
MODULE_DEVICE_TABLE(i2ic, tas2505_i2c_id);

static struct i2c_driver tas2505_i2c_driver = {
	.driver = {
		.name		= "tas2505-codec",
		.of_match_table	= of_match_ptr(tas2505_of_match),
	},
	.probe		= tas2505_i2c_probe,
	.remove		= tas2505_i2c_remove,
	.id_table	= tas2505_i2c_id,
};

module_i2c_driver(tas2505_i2c_driver);

MODULE_DESCRIPTION("ASoC TAS2505 codec driver");
MODULE_AUTHOR("Hieu Tran Dang <dangtranhieu2012@gmail.com>");
MODULE_LICENSE("GPL");