ASoC: rename ad1938 to ad193x and add support for ad1936/7/8/9

Signed-off-by: Barry Song <barry.song@analog.com>
Signed-off-by: Yi Li <yi.li@analog.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

6 files changed, 647 insertions, 625 deletions

diff --git a/sound/soc/codecs/Kconfig b/sound/soc/codecs/Kconfig
index 398cbb0e79fd..bc0ab47e156b 100644
--- a/sound/soc/codecs/Kconfig
+++ b/sound/soc/codecs/Kconfig
@@ -13,7 +13,7 @@ config SND_SOC_ALL_CODECS
 	select SND_SOC_L3
 	select SND_SOC_AC97_CODEC if SND_SOC_AC97_BUS
 	select SND_SOC_AD1836 if SPI_MASTER
-	select SND_SOC_AD1938 if SPI_MASTER
+	select SND_SOC_AD193X if SND_SOC_I2C_AND_SPI
 	select SND_SOC_AD1980 if SND_SOC_AC97_BUS
 	select SND_SOC_ADS117X
 	select SND_SOC_AD73311 if I2C
@@ -92,7 +92,7 @@ config SND_SOC_AC97_CODEC
 config SND_SOC_AD1836
 	tristate
 
-config SND_SOC_AD1938
+config SND_SOC_AD193X
 	tristate
 
 config SND_SOC_AD1980
diff --git a/sound/soc/codecs/Makefile b/sound/soc/codecs/Makefile
index 98bd10c8fd3a..337904167358 100644
--- a/sound/soc/codecs/Makefile
+++ b/sound/soc/codecs/Makefile
@@ -1,6 +1,6 @@
 snd-soc-ac97-objs := ac97.o
 snd-soc-ad1836-objs := ad1836.o
-snd-soc-ad1938-objs := ad1938.o
+snd-soc-ad193x-objs := ad193x.o
 snd-soc-ad1980-objs := ad1980.o
 snd-soc-ad73311-objs := ad73311.o
 snd-soc-ads117x-objs := ads117x.o
@@ -64,7 +64,7 @@ snd-soc-wm2000-objs := wm2000.o
 
 obj-$(CONFIG_SND_SOC_AC97_CODEC)	+= snd-soc-ac97.o
 obj-$(CONFIG_SND_SOC_AD1836)	+= snd-soc-ad1836.o
-obj-$(CONFIG_SND_SOC_AD1938)	+= snd-soc-ad1938.o
+obj-$(CONFIG_SND_SOC_AD193X)	+= snd-soc-ad193x.o
 obj-$(CONFIG_SND_SOC_AD1980)	+= snd-soc-ad1980.o
 obj-$(CONFIG_SND_SOC_AD73311) += snd-soc-ad73311.o
 obj-$(CONFIG_SND_SOC_ADS117X)	+= snd-soc-ads117x.o
diff --git a/sound/soc/codecs/ad1938.c b/sound/soc/codecs/ad1938.c
deleted file mode 100644
index c233810d463d..000000000000
--- a/sound/soc/codecs/ad1938.c
+++ /dev/null
@@ -1,521 +0,0 @@
-/*
- * File:         sound/soc/codecs/ad1938.c
- * Author:       Barry Song <Barry.Song@analog.com>
- *
- * Created:      June 04 2009
- * Description:  Driver for AD1938 sound chip
- *
- * Modified:
- *               Copyright 2009 Analog Devices Inc.
- *
- * Bugs:         Enter bugs at http://blackfin.uclinux.org/
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, see the file COPYING, or write
- * to the Free Software Foundation, Inc.,
- * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- */
-
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/device.h>
-#include <sound/core.h>
-#include <sound/pcm.h>
-#include <sound/pcm_params.h>
-#include <sound/initval.h>
-#include <sound/soc.h>
-#include <sound/tlv.h>
-#include <sound/soc-dapm.h>
-#include <linux/spi/spi.h>
-#include "ad1938.h"
-
-/* codec private data */
-struct ad1938_priv {
-	struct snd_soc_codec codec;
-	u8 reg_cache[AD1938_NUM_REGS];
-};
-
-/* ad1938 register cache & default register settings */
-static const u8 ad1938_reg[AD1938_NUM_REGS] = {
-	0, 0, 0, 0, 0, 0, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0, 0, 0,
-};
-
-static struct snd_soc_codec *ad1938_codec;
-struct snd_soc_codec_device soc_codec_dev_ad1938;
-static int ad1938_register(struct ad1938_priv *ad1938);
-static void ad1938_unregister(struct ad1938_priv *ad1938);
-
-/*
- * AD1938 volume/mute/de-emphasis etc. controls
- */
-static const char *ad1938_deemp[] = {"None", "48kHz", "44.1kHz", "32kHz"};
-
-static const struct soc_enum ad1938_deemp_enum =
-	SOC_ENUM_SINGLE(AD1938_DAC_CTRL2, 1, 4, ad1938_deemp);
-
-static const struct snd_kcontrol_new ad1938_snd_controls[] = {
-	/* DAC volume control */
-	SOC_DOUBLE_R("DAC1  Volume", AD1938_DAC_L1_VOL,
-			AD1938_DAC_R1_VOL, 0, 0xFF, 1),
-	SOC_DOUBLE_R("DAC2  Volume", AD1938_DAC_L2_VOL,
-			AD1938_DAC_R2_VOL, 0, 0xFF, 1),
-	SOC_DOUBLE_R("DAC3  Volume", AD1938_DAC_L3_VOL,
-			AD1938_DAC_R3_VOL, 0, 0xFF, 1),
-	SOC_DOUBLE_R("DAC4  Volume", AD1938_DAC_L4_VOL,
-			AD1938_DAC_R4_VOL, 0, 0xFF, 1),
-
-	/* ADC switch control */
-	SOC_DOUBLE("ADC1 Switch", AD1938_ADC_CTRL0, AD1938_ADCL1_MUTE,
-		AD1938_ADCR1_MUTE, 1, 1),
-	SOC_DOUBLE("ADC2 Switch", AD1938_ADC_CTRL0, AD1938_ADCL2_MUTE,
-		AD1938_ADCR2_MUTE, 1, 1),
-
-	/* DAC switch control */
-	SOC_DOUBLE("DAC1 Switch", AD1938_DAC_CHNL_MUTE, AD1938_DACL1_MUTE,
-		AD1938_DACR1_MUTE, 1, 1),
-	SOC_DOUBLE("DAC2 Switch", AD1938_DAC_CHNL_MUTE, AD1938_DACL2_MUTE,
-		AD1938_DACR2_MUTE, 1, 1),
-	SOC_DOUBLE("DAC3 Switch", AD1938_DAC_CHNL_MUTE, AD1938_DACL3_MUTE,
-		AD1938_DACR3_MUTE, 1, 1),
-	SOC_DOUBLE("DAC4 Switch", AD1938_DAC_CHNL_MUTE, AD1938_DACL4_MUTE,
-		AD1938_DACR4_MUTE, 1, 1),
-
-	/* ADC high-pass filter */
-	SOC_SINGLE("ADC High Pass Filter Switch", AD1938_ADC_CTRL0,
-			AD1938_ADC_HIGHPASS_FILTER, 1, 0),
-
-	/* DAC de-emphasis */
-	SOC_ENUM("Playback Deemphasis", ad1938_deemp_enum),
-};
-
-static const struct snd_soc_dapm_widget ad1938_dapm_widgets[] = {
-	SND_SOC_DAPM_DAC("DAC", "Playback", AD1938_DAC_CTRL0, 0, 1),
-	SND_SOC_DAPM_ADC("ADC", "Capture", SND_SOC_NOPM, 0, 0),
-	SND_SOC_DAPM_SUPPLY("PLL_PWR", AD1938_PLL_CLK_CTRL0, 0, 1, NULL, 0),
-	SND_SOC_DAPM_SUPPLY("ADC_PWR", AD1938_ADC_CTRL0, 0, 1, NULL, 0),
-	SND_SOC_DAPM_OUTPUT("DAC1OUT"),
-	SND_SOC_DAPM_OUTPUT("DAC2OUT"),
-	SND_SOC_DAPM_OUTPUT("DAC3OUT"),
-	SND_SOC_DAPM_OUTPUT("DAC4OUT"),
-	SND_SOC_DAPM_INPUT("ADC1IN"),
-	SND_SOC_DAPM_INPUT("ADC2IN"),
-};
-
-static const struct snd_soc_dapm_route audio_paths[] = {
-	{ "DAC", NULL, "PLL_PWR" },
-	{ "ADC", NULL, "PLL_PWR" },
-	{ "DAC", NULL, "ADC_PWR" },
-	{ "ADC", NULL, "ADC_PWR" },
-	{ "DAC1OUT", "DAC1 Switch", "DAC" },
-	{ "DAC2OUT", "DAC2 Switch", "DAC" },
-	{ "DAC3OUT", "DAC3 Switch", "DAC" },
-	{ "DAC4OUT", "DAC4 Switch", "DAC" },
-	{ "ADC", "ADC1 Switch", "ADC1IN" },
-	{ "ADC", "ADC2 Switch", "ADC2IN" },
-};
-
-/*
- * DAI ops entries
- */
-
-static int ad1938_mute(struct snd_soc_dai *dai, int mute)
-{
-	struct snd_soc_codec *codec = dai->codec;
-	int reg;
-
-	reg = snd_soc_read(codec, AD1938_DAC_CTRL2);
-	reg = (mute > 0) ? reg | AD1938_DAC_MASTER_MUTE : reg &
-		(~AD1938_DAC_MASTER_MUTE);
-	snd_soc_write(codec, AD1938_DAC_CTRL2, reg);
-
-	return 0;
-}
-
-static int ad1938_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask,
-			       unsigned int rx_mask, int slots, int width)
-{
-	struct snd_soc_codec *codec = dai->codec;
-	int dac_reg = snd_soc_read(codec, AD1938_DAC_CTRL1);
-	int adc_reg = snd_soc_read(codec, AD1938_ADC_CTRL2);
-
-	dac_reg &= ~AD1938_DAC_CHAN_MASK;
-	adc_reg &= ~AD1938_ADC_CHAN_MASK;
-
-	switch (slots) {
-	case 2:
-		dac_reg |= AD1938_DAC_2_CHANNELS << AD1938_DAC_CHAN_SHFT;
-		adc_reg |= AD1938_ADC_2_CHANNELS << AD1938_ADC_CHAN_SHFT;
-		break;
-	case 4:
-		dac_reg |= AD1938_DAC_4_CHANNELS << AD1938_DAC_CHAN_SHFT;
-		adc_reg |= AD1938_ADC_4_CHANNELS << AD1938_ADC_CHAN_SHFT;
-		break;
-	case 8:
-		dac_reg |= AD1938_DAC_8_CHANNELS << AD1938_DAC_CHAN_SHFT;
-		adc_reg |= AD1938_ADC_8_CHANNELS << AD1938_ADC_CHAN_SHFT;
-		break;
-	case 16:
-		dac_reg |= AD1938_DAC_16_CHANNELS << AD1938_DAC_CHAN_SHFT;
-		adc_reg |= AD1938_ADC_16_CHANNELS << AD1938_ADC_CHAN_SHFT;
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	snd_soc_write(codec, AD1938_DAC_CTRL1, dac_reg);
-	snd_soc_write(codec, AD1938_ADC_CTRL2, adc_reg);
-
-	return 0;
-}
-
-static int ad1938_set_dai_fmt(struct snd_soc_dai *codec_dai,
-		unsigned int fmt)
-{
-	struct snd_soc_codec *codec = codec_dai->codec;
-	int adc_reg, dac_reg;
-
-	adc_reg = snd_soc_read(codec, AD1938_ADC_CTRL2);
-	dac_reg = snd_soc_read(codec, AD1938_DAC_CTRL1);
-
-	/* At present, the driver only support AUX ADC mode(SND_SOC_DAIFMT_I2S
-	 * with TDM) and ADC&DAC TDM mode(SND_SOC_DAIFMT_DSP_A)
-	 */
-	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
-	case SND_SOC_DAIFMT_I2S:
-		adc_reg &= ~AD1938_ADC_SERFMT_MASK;
-		adc_reg |= AD1938_ADC_SERFMT_TDM;
-		break;
-	case SND_SOC_DAIFMT_DSP_A:
-		adc_reg &= ~AD1938_ADC_SERFMT_MASK;
-		adc_reg |= AD1938_ADC_SERFMT_AUX;
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
-	case SND_SOC_DAIFMT_NB_NF: /* normal bit clock + frame */
-		adc_reg &= ~AD1938_ADC_LEFT_HIGH;
-		adc_reg &= ~AD1938_ADC_BCLK_INV;
-		dac_reg &= ~AD1938_DAC_LEFT_HIGH;
-		dac_reg &= ~AD1938_DAC_BCLK_INV;
-		break;
-	case SND_SOC_DAIFMT_NB_IF: /* normal bclk + invert frm */
-		adc_reg |= AD1938_ADC_LEFT_HIGH;
-		adc_reg &= ~AD1938_ADC_BCLK_INV;
-		dac_reg |= AD1938_DAC_LEFT_HIGH;
-		dac_reg &= ~AD1938_DAC_BCLK_INV;
-		break;
-	case SND_SOC_DAIFMT_IB_NF: /* invert bclk + normal frm */
-		adc_reg &= ~AD1938_ADC_LEFT_HIGH;
-		adc_reg |= AD1938_ADC_BCLK_INV;
-		dac_reg &= ~AD1938_DAC_LEFT_HIGH;
-		dac_reg |= AD1938_DAC_BCLK_INV;
-		break;
-
-	case SND_SOC_DAIFMT_IB_IF: /* invert bclk + frm */
-		adc_reg |= AD1938_ADC_LEFT_HIGH;
-		adc_reg |= AD1938_ADC_BCLK_INV;
-		dac_reg |= AD1938_DAC_LEFT_HIGH;
-		dac_reg |= AD1938_DAC_BCLK_INV;
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
-	case SND_SOC_DAIFMT_CBM_CFM: /* codec clk & frm master */
-		adc_reg |= AD1938_ADC_LCR_MASTER;
-		adc_reg |= AD1938_ADC_BCLK_MASTER;
-		dac_reg |= AD1938_DAC_LCR_MASTER;
-		dac_reg |= AD1938_DAC_BCLK_MASTER;
-		break;
-	case SND_SOC_DAIFMT_CBS_CFM: /* codec clk slave & frm master */
-		adc_reg |= AD1938_ADC_LCR_MASTER;
-		adc_reg &= ~AD1938_ADC_BCLK_MASTER;
-		dac_reg |= AD1938_DAC_LCR_MASTER;
-		dac_reg &= ~AD1938_DAC_BCLK_MASTER;
-		break;
-	case SND_SOC_DAIFMT_CBM_CFS: /* codec clk master & frame slave */
-		adc_reg &= ~AD1938_ADC_LCR_MASTER;
-		adc_reg |= AD1938_ADC_BCLK_MASTER;
-		dac_reg &= ~AD1938_DAC_LCR_MASTER;
-		dac_reg |= AD1938_DAC_BCLK_MASTER;
-		break;
-	case SND_SOC_DAIFMT_CBS_CFS: /* codec clk & frm slave */
-		adc_reg &= ~AD1938_ADC_LCR_MASTER;
-		adc_reg &= ~AD1938_ADC_BCLK_MASTER;
-		dac_reg &= ~AD1938_DAC_LCR_MASTER;
-		dac_reg &= ~AD1938_DAC_BCLK_MASTER;
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	snd_soc_write(codec, AD1938_ADC_CTRL2, adc_reg);
-	snd_soc_write(codec, AD1938_DAC_CTRL1, dac_reg);
-
-	return 0;
-}
-
-static int ad1938_hw_params(struct snd_pcm_substream *substream,
-		struct snd_pcm_hw_params *params,
-		struct snd_soc_dai *dai)
-{
-	int word_len = 0, reg = 0;
-
-	struct snd_soc_pcm_runtime *rtd = substream->private_data;
-	struct snd_soc_device *socdev = rtd->socdev;
-	struct snd_soc_codec *codec = socdev->card->codec;
-
-	/* bit size */
-	switch (params_format(params)) {
-	case SNDRV_PCM_FORMAT_S16_LE:
-		word_len = 3;
-		break;
-	case SNDRV_PCM_FORMAT_S20_3LE:
-		word_len = 1;
-		break;
-	case SNDRV_PCM_FORMAT_S24_LE:
-	case SNDRV_PCM_FORMAT_S32_LE:
-		word_len = 0;
-		break;
-	}
-
-	reg = snd_soc_read(codec, AD1938_DAC_CTRL2);
-	reg = (reg & (~AD1938_DAC_WORD_LEN_MASK)) | word_len;
-	snd_soc_write(codec, AD1938_DAC_CTRL2, reg);
-
-	reg = snd_soc_read(codec, AD1938_ADC_CTRL1);
-	reg = (reg & (~AD1938_ADC_WORD_LEN_MASK)) | word_len;
-	snd_soc_write(codec, AD1938_ADC_CTRL1, reg);
-
-	return 0;
-}
-
-static int __devinit ad1938_spi_probe(struct spi_device *spi)
-{
-	struct snd_soc_codec *codec;
-	struct ad1938_priv *ad1938;
-
-	ad1938 = kzalloc(sizeof(struct ad1938_priv), GFP_KERNEL);
-	if (ad1938 == NULL)
-		return -ENOMEM;
-
-	codec = &ad1938->codec;
-	codec->control_data = spi;
-	codec->dev = &spi->dev;
-
-	dev_set_drvdata(&spi->dev, ad1938);
-
-	return ad1938_register(ad1938);
-}
-
-static int __devexit ad1938_spi_remove(struct spi_device *spi)
-{
-	struct ad1938_priv *ad1938 = dev_get_drvdata(&spi->dev);
-
-	ad1938_unregister(ad1938);
-	return 0;
-}
-
-static struct spi_driver ad1938_spi_driver = {
-	.driver = {
-		.name	= "ad1938",
-		.owner	= THIS_MODULE,
-	},
-	.probe		= ad1938_spi_probe,
-	.remove		= __devexit_p(ad1938_spi_remove),
-};
-
-static struct snd_soc_dai_ops ad1938_dai_ops = {
-	.hw_params = ad1938_hw_params,
-	.digital_mute = ad1938_mute,
-	.set_tdm_slot = ad1938_set_tdm_slot,
-	.set_fmt = ad1938_set_dai_fmt,
-};
-
-/* codec DAI instance */
-struct snd_soc_dai ad1938_dai = {
-	.name = "AD1938",
-	.playback = {
-		.stream_name = "Playback",
-		.channels_min = 2,
-		.channels_max = 8,
-		.rates = SNDRV_PCM_RATE_48000,
-		.formats = SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S16_LE |
-			SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S24_LE,
-	},
-	.capture = {
-		.stream_name = "Capture",
-		.channels_min = 2,
-		.channels_max = 4,
-		.rates = SNDRV_PCM_RATE_48000,
-		.formats = SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S16_LE |
-			SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S24_LE,
-	},
-	.ops = &ad1938_dai_ops,
-};
-EXPORT_SYMBOL_GPL(ad1938_dai);
-
-static int ad1938_register(struct ad1938_priv *ad1938)
-{
-	int ret;
-	struct snd_soc_codec *codec = &ad1938->codec;
-
-	if (ad1938_codec) {
-		dev_err(codec->dev, "Another ad1938 is registered\n");
-		return -EINVAL;
-	}
-
-	mutex_init(&codec->mutex);
-	INIT_LIST_HEAD(&codec->dapm_widgets);
-	INIT_LIST_HEAD(&codec->dapm_paths);
-	codec->private_data = ad1938;
-	codec->reg_cache = ad1938->reg_cache;
-	codec->reg_cache_size = AD1938_NUM_REGS;
-	codec->name = "AD1938";
-	codec->owner = THIS_MODULE;
-	codec->dai = &ad1938_dai;
-	codec->num_dai = 1;
-	INIT_LIST_HEAD(&codec->dapm_widgets);
-	INIT_LIST_HEAD(&codec->dapm_paths);
-
-	ad1938_dai.dev = codec->dev;
-	ad1938_codec = codec;
-
-	memcpy(codec->reg_cache, ad1938_reg, AD1938_NUM_REGS);
-
-	ret = snd_soc_codec_set_cache_io(codec, 16, 8, SND_SOC_SPI);
-	if (ret < 0) {
-		dev_err(codec->dev, "failed to set cache I/O: %d\n",
-				ret);
-		kfree(ad1938);
-		return ret;
-	}
-
-	/* default setting for ad1938 */
-
-	/* unmute dac channels */
-	snd_soc_write(codec, AD1938_DAC_CHNL_MUTE, 0x0);
-	/* de-emphasis: 48kHz, powedown dac */
-	snd_soc_write(codec, AD1938_DAC_CTRL2, 0x1A);
-	/* powerdown dac, dac in tdm mode */
-	snd_soc_write(codec, AD1938_DAC_CTRL0, 0x41);
-	/* high-pass filter enable */
-	snd_soc_write(codec, AD1938_ADC_CTRL0, 0x3);
-	/* sata delay=1, adc aux mode */
-	snd_soc_write(codec, AD1938_ADC_CTRL1, 0x43);
-	/* pll input: mclki/xi */
-	snd_soc_write(codec, AD1938_PLL_CLK_CTRL0, 0x9D);
-	snd_soc_write(codec, AD1938_PLL_CLK_CTRL1, 0x04);
-
-	ret = snd_soc_register_codec(codec);
-	if (ret != 0) {
-		dev_err(codec->dev, "Failed to register codec: %d\n", ret);
-		kfree(ad1938);
-		return ret;
-	}
-
-	ret = snd_soc_register_dai(&ad1938_dai);
-	if (ret != 0) {
-		dev_err(codec->dev, "Failed to register DAI: %d\n", ret);
-		snd_soc_unregister_codec(codec);
-		kfree(ad1938);
-		return ret;
-	}
-
-	return 0;
-}
-
-static void ad1938_unregister(struct ad1938_priv *ad1938)
-{
-	snd_soc_unregister_dai(&ad1938_dai);
-	snd_soc_unregister_codec(&ad1938->codec);
-	kfree(ad1938);
-	ad1938_codec = NULL;
-}
-
-static int ad1938_probe(struct platform_device *pdev)
-{
-	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-	struct snd_soc_codec *codec;
-	int ret = 0;
-
-	if (ad1938_codec == NULL) {
-		dev_err(&pdev->dev, "Codec device not registered\n");
-		return -ENODEV;
-	}
-
-	socdev->card->codec = ad1938_codec;
-	codec = ad1938_codec;
-
-	/* register pcms */
-	ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
-	if (ret < 0) {
-		dev_err(codec->dev, "failed to create pcms: %d\n", ret);
-		goto pcm_err;
-	}
-
-	snd_soc_add_controls(codec, ad1938_snd_controls,
-			     ARRAY_SIZE(ad1938_snd_controls));
-	snd_soc_dapm_new_controls(codec, ad1938_dapm_widgets,
-				  ARRAY_SIZE(ad1938_dapm_widgets));
-	snd_soc_dapm_add_routes(codec, audio_paths, ARRAY_SIZE(audio_paths));
-
-
-pcm_err:
-	return ret;
-}
-
-/* power down chip */
-static int ad1938_remove(struct platform_device *pdev)
-{
-	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
-
-	snd_soc_free_pcms(socdev);
-	snd_soc_dapm_free(socdev);
-
-	return 0;
-}
-
-struct snd_soc_codec_device soc_codec_dev_ad1938 = {
-	.probe = 	ad1938_probe,
-	.remove = 	ad1938_remove,
-};
-EXPORT_SYMBOL_GPL(soc_codec_dev_ad1938);
-
-static int __init ad1938_init(void)
-{
-	int ret;
-
-	ret = spi_register_driver(&ad1938_spi_driver);
-	if (ret != 0) {
-		printk(KERN_ERR "Failed to register ad1938 SPI driver: %d\n",
-				ret);
-	}
-
-	return ret;
-}
-module_init(ad1938_init);
-
-static void __exit ad1938_exit(void)
-{
-	spi_unregister_driver(&ad1938_spi_driver);
-}
-module_exit(ad1938_exit);
-
-MODULE_DESCRIPTION("ASoC ad1938 driver");
-MODULE_AUTHOR("Barry Song ");
-MODULE_LICENSE("GPL");
diff --git a/sound/soc/codecs/ad1938.h b/sound/soc/codecs/ad1938.h
deleted file mode 100644
index fe3c48cd2d5b..000000000000
--- a/sound/soc/codecs/ad1938.h
+++ /dev/null
@@ -1,100 +0,0 @@
-/*
- * File:         sound/soc/codecs/ad1836.h
- * Based on:
- * Author:       Barry Song <Barry.Song@analog.com>
- *
- * Created:      May 25, 2009
- * Description:  definitions for AD1938 registers
- *
- * Modified:
- *
- * Bugs:         Enter bugs at http://blackfin.uclinux.org/
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, see the file COPYING, or write
- * to the Free Software Foundation, Inc.,
- * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- */
-
-#ifndef __AD1938_H__
-#define __AD1938_H__
-
-#define AD1938_PLL_CLK_CTRL0    0
-#define AD1938_PLL_POWERDOWN           0x01
-#define AD1938_PLL_CLK_CTRL1    1
-#define AD1938_DAC_CTRL0        2
-#define AD1938_DAC_POWERDOWN           0x01
-#define AD1938_DAC_SERFMT_MASK		0xC0
-#define AD1938_DAC_SERFMT_STEREO	(0 << 6)
-#define AD1938_DAC_SERFMT_TDM		(1 << 6)
-#define AD1938_DAC_CTRL1        3
-#define AD1938_DAC_2_CHANNELS   0
-#define AD1938_DAC_4_CHANNELS   1
-#define AD1938_DAC_8_CHANNELS   2
-#define AD1938_DAC_16_CHANNELS  3
-#define AD1938_DAC_CHAN_SHFT    1
-#define AD1938_DAC_CHAN_MASK    (3 << AD1938_DAC_CHAN_SHFT)
-#define AD1938_DAC_LCR_MASTER   (1 << 4)
-#define AD1938_DAC_BCLK_MASTER  (1 << 5)
-#define AD1938_DAC_LEFT_HIGH    (1 << 3)
-#define AD1938_DAC_BCLK_INV     (1 << 7)
-#define AD1938_DAC_CTRL2        4
-#define AD1938_DAC_WORD_LEN_MASK	0xC
-#define AD1938_DAC_MASTER_MUTE  1
-#define AD1938_DAC_CHNL_MUTE    5
-#define AD1938_DACL1_MUTE       0
-#define AD1938_DACR1_MUTE       1
-#define AD1938_DACL2_MUTE       2
-#define AD1938_DACR2_MUTE       3
-#define AD1938_DACL3_MUTE       4
-#define AD1938_DACR3_MUTE       5
-#define AD1938_DACL4_MUTE       6
-#define AD1938_DACR4_MUTE       7
-#define AD1938_DAC_L1_VOL       6
-#define AD1938_DAC_R1_VOL       7
-#define AD1938_DAC_L2_VOL       8
-#define AD1938_DAC_R2_VOL       9
-#define AD1938_DAC_L3_VOL       10
-#define AD1938_DAC_R3_VOL       11
-#define AD1938_DAC_L4_VOL       12
-#define AD1938_DAC_R4_VOL       13
-#define AD1938_ADC_CTRL0        14
-#define AD1938_ADC_POWERDOWN           0x01
-#define AD1938_ADC_HIGHPASS_FILTER	1
-#define AD1938_ADCL1_MUTE 		2
-#define AD1938_ADCR1_MUTE 		3
-#define AD1938_ADCL2_MUTE 		4
-#define AD1938_ADCR2_MUTE 		5
-#define AD1938_ADC_CTRL1        15
-#define AD1938_ADC_SERFMT_MASK		0x60
-#define AD1938_ADC_SERFMT_STEREO	(0 << 5)
-#define AD1938_ADC_SERFMT_TDM		(1 << 2)
-#define AD1938_ADC_SERFMT_AUX		(2 << 5)
-#define AD1938_ADC_WORD_LEN_MASK	0x3
-#define AD1938_ADC_CTRL2        16
-#define AD1938_ADC_2_CHANNELS   0
-#define AD1938_ADC_4_CHANNELS   1
-#define AD1938_ADC_8_CHANNELS   2
-#define AD1938_ADC_16_CHANNELS  3
-#define AD1938_ADC_CHAN_SHFT    4
-#define AD1938_ADC_CHAN_MASK    (3 << AD1938_ADC_CHAN_SHFT)
-#define AD1938_ADC_LCR_MASTER   (1 << 3)
-#define AD1938_ADC_BCLK_MASTER  (1 << 6)
-#define AD1938_ADC_LEFT_HIGH    (1 << 2)
-#define AD1938_ADC_BCLK_INV     (1 << 1)
-
-#define AD1938_NUM_REGS          17
-
-extern struct snd_soc_dai ad1938_dai;
-extern struct snd_soc_codec_device soc_codec_dev_ad1938;
-#endif
diff --git a/sound/soc/codecs/ad193x.c b/sound/soc/codecs/ad193x.c
new file mode 100644
index 000000000000..d7426990b66e
--- /dev/null
+++ b/sound/soc/codecs/ad193x.c
@@ -0,0 +1,560 @@
+/*
+ * AD193X Audio Codec driver supporting AD1936/7/8/9
+ *
+ * Copyright 2010 Analog Devices Inc.
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/device.h>
+#include <linux/i2c.h>
+#include <linux/spi/spi.h>
+#include <sound/core.h>
+#include <sound/pcm.h>
+#include <sound/pcm_params.h>
+#include <sound/initval.h>
+#include <sound/soc.h>
+#include <sound/tlv.h>
+#include <sound/soc-dapm.h>
+#include "ad193x.h"
+
+/* codec private data */
+struct ad193x_priv {
+	struct snd_soc_codec codec;
+	u8 reg_cache[AD193X_NUM_REGS];
+};
+
+/* ad193x register cache & default register settings */
+static const u8 ad193x_reg[AD193X_NUM_REGS] = {
+	0, 0, 0, 0, 0, 0, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0, 0, 0,
+};
+
+static struct snd_soc_codec *ad193x_codec;
+struct snd_soc_codec_device soc_codec_dev_ad193x;
+static int ad193x_register(struct ad193x_priv *ad193x, int bus_type);
+static void ad193x_unregister(struct ad193x_priv *ad193x);
+
+/*
+ * AD193X volume/mute/de-emphasis etc. controls
+ */
+static const char *ad193x_deemp[] = {"None", "48kHz", "44.1kHz", "32kHz"};
+
+static const struct soc_enum ad193x_deemp_enum =
+	SOC_ENUM_SINGLE(AD193X_DAC_CTRL2, 1, 4, ad193x_deemp);
+
+static const struct snd_kcontrol_new ad193x_snd_controls[] = {
+	/* DAC volume control */
+	SOC_DOUBLE_R("DAC1  Volume", AD193X_DAC_L1_VOL,
+			AD193X_DAC_R1_VOL, 0, 0xFF, 1),
+	SOC_DOUBLE_R("DAC2  Volume", AD193X_DAC_L2_VOL,
+			AD193X_DAC_R2_VOL, 0, 0xFF, 1),
+	SOC_DOUBLE_R("DAC3  Volume", AD193X_DAC_L3_VOL,
+			AD193X_DAC_R3_VOL, 0, 0xFF, 1),
+	SOC_DOUBLE_R("DAC4  Volume", AD193X_DAC_L4_VOL,
+			AD193X_DAC_R4_VOL, 0, 0xFF, 1),
+
+	/* ADC switch control */
+	SOC_DOUBLE("ADC1 Switch", AD193X_ADC_CTRL0, AD193X_ADCL1_MUTE,
+		AD193X_ADCR1_MUTE, 1, 1),
+	SOC_DOUBLE("ADC2 Switch", AD193X_ADC_CTRL0, AD193X_ADCL2_MUTE,
+		AD193X_ADCR2_MUTE, 1, 1),
+
+	/* DAC switch control */
+	SOC_DOUBLE("DAC1 Switch", AD193X_DAC_CHNL_MUTE, AD193X_DACL1_MUTE,
+		AD193X_DACR1_MUTE, 1, 1),
+	SOC_DOUBLE("DAC2 Switch", AD193X_DAC_CHNL_MUTE, AD193X_DACL2_MUTE,
+		AD193X_DACR2_MUTE, 1, 1),
+	SOC_DOUBLE("DAC3 Switch", AD193X_DAC_CHNL_MUTE, AD193X_DACL3_MUTE,
+		AD193X_DACR3_MUTE, 1, 1),
+	SOC_DOUBLE("DAC4 Switch", AD193X_DAC_CHNL_MUTE, AD193X_DACL4_MUTE,
+		AD193X_DACR4_MUTE, 1, 1),
+
+	/* ADC high-pass filter */
+	SOC_SINGLE("ADC High Pass Filter Switch", AD193X_ADC_CTRL0,
+			AD193X_ADC_HIGHPASS_FILTER, 1, 0),
+
+	/* DAC de-emphasis */
+	SOC_ENUM("Playback Deemphasis", ad193x_deemp_enum),
+};
+
+static const struct snd_soc_dapm_widget ad193x_dapm_widgets[] = {
+	SND_SOC_DAPM_DAC("DAC", "Playback", AD193X_DAC_CTRL0, 0, 1),
+	SND_SOC_DAPM_ADC("ADC", "Capture", SND_SOC_NOPM, 0, 0),
+	SND_SOC_DAPM_SUPPLY("PLL_PWR", AD193X_PLL_CLK_CTRL0, 0, 1, NULL, 0),
+	SND_SOC_DAPM_SUPPLY("ADC_PWR", AD193X_ADC_CTRL0, 0, 1, NULL, 0),
+	SND_SOC_DAPM_OUTPUT("DAC1OUT"),
+	SND_SOC_DAPM_OUTPUT("DAC2OUT"),
+	SND_SOC_DAPM_OUTPUT("DAC3OUT"),
+	SND_SOC_DAPM_OUTPUT("DAC4OUT"),
+	SND_SOC_DAPM_INPUT("ADC1IN"),
+	SND_SOC_DAPM_INPUT("ADC2IN"),
+};
+
+static const struct snd_soc_dapm_route audio_paths[] = {
+	{ "DAC", NULL, "PLL_PWR" },
+	{ "ADC", NULL, "PLL_PWR" },
+	{ "DAC", NULL, "ADC_PWR" },
+	{ "ADC", NULL, "ADC_PWR" },
+	{ "DAC1OUT", "DAC1 Switch", "DAC" },
+	{ "DAC2OUT", "DAC2 Switch", "DAC" },
+	{ "DAC3OUT", "DAC3 Switch", "DAC" },
+	{ "DAC4OUT", "DAC4 Switch", "DAC" },
+	{ "ADC", "ADC1 Switch", "ADC1IN" },
+	{ "ADC", "ADC2 Switch", "ADC2IN" },
+};
+
+/*
+ * DAI ops entries
+ */
+
+static int ad193x_mute(struct snd_soc_dai *dai, int mute)
+{
+	struct snd_soc_codec *codec = dai->codec;
+	int reg;
+
+	reg = snd_soc_read(codec, AD193X_DAC_CTRL2);
+	reg = (mute > 0) ? reg | AD193X_DAC_MASTER_MUTE : reg &
+		(~AD193X_DAC_MASTER_MUTE);
+	snd_soc_write(codec, AD193X_DAC_CTRL2, reg);
+
+	return 0;
+}
+
+static int ad193x_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask,
+			       unsigned int rx_mask, int slots, int width)
+{
+	struct snd_soc_codec *codec = dai->codec;
+	int dac_reg = snd_soc_read(codec, AD193X_DAC_CTRL1);
+	int adc_reg = snd_soc_read(codec, AD193X_ADC_CTRL2);
+
+	dac_reg &= ~AD193X_DAC_CHAN_MASK;
+	adc_reg &= ~AD193X_ADC_CHAN_MASK;
+
+	switch (slots) {
+	case 2:
+		dac_reg |= AD193X_DAC_2_CHANNELS << AD193X_DAC_CHAN_SHFT;
+		adc_reg |= AD193X_ADC_2_CHANNELS << AD193X_ADC_CHAN_SHFT;
+		break;
+	case 4:
+		dac_reg |= AD193X_DAC_4_CHANNELS << AD193X_DAC_CHAN_SHFT;
+		adc_reg |= AD193X_ADC_4_CHANNELS << AD193X_ADC_CHAN_SHFT;
+		break;
+	case 8:
+		dac_reg |= AD193X_DAC_8_CHANNELS << AD193X_DAC_CHAN_SHFT;
+		adc_reg |= AD193X_ADC_8_CHANNELS << AD193X_ADC_CHAN_SHFT;
+		break;
+	case 16:
+		dac_reg |= AD193X_DAC_16_CHANNELS << AD193X_DAC_CHAN_SHFT;
+		adc_reg |= AD193X_ADC_16_CHANNELS << AD193X_ADC_CHAN_SHFT;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	snd_soc_write(codec, AD193X_DAC_CTRL1, dac_reg);
+	snd_soc_write(codec, AD193X_ADC_CTRL2, adc_reg);
+
+	return 0;
+}
+
+static int ad193x_set_dai_fmt(struct snd_soc_dai *codec_dai,
+		unsigned int fmt)
+{
+	struct snd_soc_codec *codec = codec_dai->codec;
+	int adc_reg, dac_reg;
+
+	adc_reg = snd_soc_read(codec, AD193X_ADC_CTRL2);
+	dac_reg = snd_soc_read(codec, AD193X_DAC_CTRL1);
+
+	/* At present, the driver only support AUX ADC mode(SND_SOC_DAIFMT_I2S
+	 * with TDM) and ADC&DAC TDM mode(SND_SOC_DAIFMT_DSP_A)
+	 */
+	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
+	case SND_SOC_DAIFMT_I2S:
+		adc_reg &= ~AD193X_ADC_SERFMT_MASK;
+		adc_reg |= AD193X_ADC_SERFMT_TDM;
+		break;
+	case SND_SOC_DAIFMT_DSP_A:
+		adc_reg &= ~AD193X_ADC_SERFMT_MASK;
+		adc_reg |= AD193X_ADC_SERFMT_AUX;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
+	case SND_SOC_DAIFMT_NB_NF: /* normal bit clock + frame */
+		adc_reg &= ~AD193X_ADC_LEFT_HIGH;
+		adc_reg &= ~AD193X_ADC_BCLK_INV;
+		dac_reg &= ~AD193X_DAC_LEFT_HIGH;
+		dac_reg &= ~AD193X_DAC_BCLK_INV;
+		break;
+	case SND_SOC_DAIFMT_NB_IF: /* normal bclk + invert frm */
+		adc_reg |= AD193X_ADC_LEFT_HIGH;
+		adc_reg &= ~AD193X_ADC_BCLK_INV;
+		dac_reg |= AD193X_DAC_LEFT_HIGH;
+		dac_reg &= ~AD193X_DAC_BCLK_INV;
+		break;
+	case SND_SOC_DAIFMT_IB_NF: /* invert bclk + normal frm */
+		adc_reg &= ~AD193X_ADC_LEFT_HIGH;
+		adc_reg |= AD193X_ADC_BCLK_INV;
+		dac_reg &= ~AD193X_DAC_LEFT_HIGH;
+		dac_reg |= AD193X_DAC_BCLK_INV;
+		break;
+
+	case SND_SOC_DAIFMT_IB_IF: /* invert bclk + frm */
+		adc_reg |= AD193X_ADC_LEFT_HIGH;
+		adc_reg |= AD193X_ADC_BCLK_INV;
+		dac_reg |= AD193X_DAC_LEFT_HIGH;
+		dac_reg |= AD193X_DAC_BCLK_INV;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
+	case SND_SOC_DAIFMT_CBM_CFM: /* codec clk & frm master */
+		adc_reg |= AD193X_ADC_LCR_MASTER;
+		adc_reg |= AD193X_ADC_BCLK_MASTER;
+		dac_reg |= AD193X_DAC_LCR_MASTER;
+		dac_reg |= AD193X_DAC_BCLK_MASTER;
+		break;
+	case SND_SOC_DAIFMT_CBS_CFM: /* codec clk slave & frm master */
+		adc_reg |= AD193X_ADC_LCR_MASTER;
+		adc_reg &= ~AD193X_ADC_BCLK_MASTER;
+		dac_reg |= AD193X_DAC_LCR_MASTER;
+		dac_reg &= ~AD193X_DAC_BCLK_MASTER;
+		break;
+	case SND_SOC_DAIFMT_CBM_CFS: /* codec clk master & frame slave */
+		adc_reg &= ~AD193X_ADC_LCR_MASTER;
+		adc_reg |= AD193X_ADC_BCLK_MASTER;
+		dac_reg &= ~AD193X_DAC_LCR_MASTER;
+		dac_reg |= AD193X_DAC_BCLK_MASTER;
+		break;
+	case SND_SOC_DAIFMT_CBS_CFS: /* codec clk & frm slave */
+		adc_reg &= ~AD193X_ADC_LCR_MASTER;
+		adc_reg &= ~AD193X_ADC_BCLK_MASTER;
+		dac_reg &= ~AD193X_DAC_LCR_MASTER;
+		dac_reg &= ~AD193X_DAC_BCLK_MASTER;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	snd_soc_write(codec, AD193X_ADC_CTRL2, adc_reg);
+	snd_soc_write(codec, AD193X_DAC_CTRL1, dac_reg);
+
+	return 0;
+}
+
+static int ad193x_hw_params(struct snd_pcm_substream *substream,
+		struct snd_pcm_hw_params *params,
+		struct snd_soc_dai *dai)
+{
+	int word_len = 0, reg = 0;
+
+	struct snd_soc_pcm_runtime *rtd = substream->private_data;
+	struct snd_soc_device *socdev = rtd->socdev;
+	struct snd_soc_codec *codec = socdev->card->codec;
+
+	/* bit size */
+	switch (params_format(params)) {
+	case SNDRV_PCM_FORMAT_S16_LE:
+		word_len = 3;
+		break;
+	case SNDRV_PCM_FORMAT_S20_3LE:
+		word_len = 1;
+		break;
+	case SNDRV_PCM_FORMAT_S24_LE:
+	case SNDRV_PCM_FORMAT_S32_LE:
+		word_len = 0;
+		break;
+	}
+
+	reg = snd_soc_read(codec, AD193X_DAC_CTRL2);
+	reg = (reg & (~AD193X_DAC_WORD_LEN_MASK)) | word_len;
+	snd_soc_write(codec, AD193X_DAC_CTRL2, reg);
+
+	reg = snd_soc_read(codec, AD193X_ADC_CTRL1);
+	reg = (reg & (~AD193X_ADC_WORD_LEN_MASK)) | word_len;
+	snd_soc_write(codec, AD193X_ADC_CTRL1, reg);
+
+	return 0;
+}
+
+int ad193x_bus_probe(struct device *dev, void *ctrl_data, int bus_type)
+{
+	struct snd_soc_codec *codec;
+	struct ad193x_priv *ad193x;
+
+	ad193x = kzalloc(sizeof(struct ad193x_priv), GFP_KERNEL);
+	if (ad193x == NULL)
+		return -ENOMEM;
+
+	codec = &ad193x->codec;
+	codec->control_data = ctrl_data;
+	codec->dev = dev;
+
+	dev_set_drvdata(dev, ad193x);
+
+	return ad193x_register(ad193x, bus_type);
+}
+EXPORT_SYMBOL_GPL(ad193x_bus_probe);
+
+int ad193x_bus_remove(struct device *dev)
+{
+	struct ad193x_priv *ad193x = dev_get_drvdata(dev);
+
+	ad193x_unregister(ad193x);
+	return 0;
+}
+EXPORT_SYMBOL_GPL(ad193x_bus_remove);
+
+static struct snd_soc_dai_ops ad193x_dai_ops = {
+	.hw_params = ad193x_hw_params,
+	.digital_mute = ad193x_mute,
+	.set_tdm_slot = ad193x_set_tdm_slot,
+	.set_fmt = ad193x_set_dai_fmt,
+};
+
+/* codec DAI instance */
+struct snd_soc_dai ad193x_dai = {
+	.name = "AD193X",
+	.playback = {
+		.stream_name = "Playback",
+		.channels_min = 2,
+		.channels_max = 8,
+		.rates = SNDRV_PCM_RATE_48000,
+		.formats = SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S16_LE |
+			SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S24_LE,
+	},
+	.capture = {
+		.stream_name = "Capture",
+		.channels_min = 2,
+		.channels_max = 4,
+		.rates = SNDRV_PCM_RATE_48000,
+		.formats = SNDRV_PCM_FMTBIT_S32_LE | SNDRV_PCM_FMTBIT_S16_LE |
+			SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S24_LE,
+	},
+	.ops = &ad193x_dai_ops,
+};
+EXPORT_SYMBOL_GPL(ad193x_dai);
+
+static int ad193x_register(struct ad193x_priv *ad193x, int bus_type)
+{
+	int ret;
+	struct snd_soc_codec *codec = &ad193x->codec;
+
+	if (ad193x_codec) {
+		dev_err(codec->dev, "Another ad193x is registered\n");
+		return -EINVAL;
+	}
+
+	mutex_init(&codec->mutex);
+	codec->private_data = ad193x;
+	codec->reg_cache = ad193x->reg_cache;
+	codec->reg_cache_size = AD193X_NUM_REGS;
+	codec->name = "AD193X";
+	codec->owner = THIS_MODULE;
+	codec->dai = &ad193x_dai;
+	codec->num_dai = 1;
+	INIT_LIST_HEAD(&codec->dapm_widgets);
+	INIT_LIST_HEAD(&codec->dapm_paths);
+
+	ad193x_dai.dev = codec->dev;
+	ad193x_codec = codec;
+
+	memcpy(codec->reg_cache, ad193x_reg, AD193X_NUM_REGS);
+
+	if (bus_type == SND_SOC_I2C)
+		ret = snd_soc_codec_set_cache_io(codec, 8, 8, bus_type);
+	else
+		ret = snd_soc_codec_set_cache_io(codec, 16, 8, bus_type);
+	if (ret < 0) {
+		dev_err(codec->dev, "failed to set cache I/O: %d\n",
+				ret);
+		kfree(ad193x);
+		return ret;
+	}
+
+	/* default setting for ad193x */
+
+	/* unmute dac channels */
+	snd_soc_write(codec, AD193X_DAC_CHNL_MUTE, 0x0);
+	/* de-emphasis: 48kHz, powedown dac */
+	snd_soc_write(codec, AD193X_DAC_CTRL2, 0x1A);
+	/* powerdown dac, dac in tdm mode */
+	snd_soc_write(codec, AD193X_DAC_CTRL0, 0x41);
+	/* high-pass filter enable */
+	snd_soc_write(codec, AD193X_ADC_CTRL0, 0x3);
+	/* sata delay=1, adc aux mode */
+	snd_soc_write(codec, AD193X_ADC_CTRL1, 0x43);
+	/* pll input: mclki/xi */
+	snd_soc_write(codec, AD193X_PLL_CLK_CTRL0, 0x99); /* mclk=24.576Mhz: 0x9D; mclk=12.288Mhz: 0x99 */
+	snd_soc_write(codec, AD193X_PLL_CLK_CTRL1, 0x04);
+
+	ret = snd_soc_register_codec(codec);
+	if (ret != 0) {
+		dev_err(codec->dev, "Failed to register codec: %d\n", ret);
+		kfree(ad193x);
+		return ret;
+	}
+
+	ret = snd_soc_register_dai(&ad193x_dai);
+	if (ret != 0) {
+		dev_err(codec->dev, "Failed to register DAI: %d\n", ret);
+		snd_soc_unregister_codec(codec);
+		kfree(ad193x);
+		return ret;
+	}
+
+	return 0;
+}
+
+static void ad193x_unregister(struct ad193x_priv *ad193x)
+{
+	snd_soc_unregister_dai(&ad193x_dai);
+	snd_soc_unregister_codec(&ad193x->codec);
+	kfree(ad193x);
+	ad193x_codec = NULL;
+}
+
+static int ad193x_probe(struct platform_device *pdev)
+{
+	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
+	struct snd_soc_codec *codec;
+	int ret = 0;
+
+	if (ad193x_codec == NULL) {
+		dev_err(&pdev->dev, "Codec device not registered\n");
+		return -ENODEV;
+	}
+
+	socdev->card->codec = ad193x_codec;
+	codec = ad193x_codec;
+
+	/* register pcms */
+	ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
+	if (ret < 0) {
+		dev_err(codec->dev, "failed to create pcms: %d\n", ret);
+		goto pcm_err;
+	}
+
+	snd_soc_add_controls(codec, ad193x_snd_controls,
+			     ARRAY_SIZE(ad193x_snd_controls));
+	snd_soc_dapm_new_controls(codec, ad193x_dapm_widgets,
+				  ARRAY_SIZE(ad193x_dapm_widgets));
+	snd_soc_dapm_add_routes(codec, audio_paths, ARRAY_SIZE(audio_paths));
+
+pcm_err:
+	return ret;
+}
+
+/* power down chip */
+static int ad193x_remove(struct platform_device *pdev)
+{
+	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
+
+	snd_soc_free_pcms(socdev);
+	snd_soc_dapm_free(socdev);
+
+	return 0;
+}
+
+struct snd_soc_codec_device soc_codec_dev_ad193x = {
+	.probe = 	ad193x_probe,
+	.remove = 	ad193x_remove,
+};
+EXPORT_SYMBOL_GPL(soc_codec_dev_ad193x);
+
+#if defined(CONFIG_SPI_MASTER)
+static int __devinit ad193x_spi_probe(struct spi_device *spi)
+{
+	return ad193x_bus_probe(&spi->dev, spi, SND_SOC_SPI);
+}
+
+static int __devexit ad193x_spi_remove(struct spi_device *spi)
+{
+	return ad193x_bus_remove(&spi->dev);
+}
+
+static struct spi_driver ad193x_spi_driver = {
+	.driver = {
+		.name	= "ad193x",
+		.owner	= THIS_MODULE,
+	},
+	.probe		= ad193x_spi_probe,
+	.remove		= __devexit_p(ad193x_spi_remove),
+};
+#endif
+
+#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
+static const struct i2c_device_id ad193x_id[] = {
+	{ "ad1936", 0 },
+	{ "ad1937", 0 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, ad193x_id);
+
+static int __devinit ad193x_i2c_probe(struct i2c_client *client,
+		const struct i2c_device_id *id)
+{
+	return ad193x_bus_probe(&client->dev, client, SND_SOC_I2C);
+}
+
+static int __devexit ad193x_i2c_remove(struct i2c_client *client)
+{
+	return ad193x_bus_remove(&client->dev);
+}
+
+static struct i2c_driver ad193x_i2c_driver = {
+	.driver = {
+		.name = "ad193x",
+	},
+	.probe    = ad193x_i2c_probe,
+	.remove   = __devexit_p(ad193x_i2c_remove),
+	.id_table = ad193x_id,
+};
+#endif
+
+static int __init ad193x_modinit(void)
+{
+	int ret;
+
+#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
+	ret =  i2c_add_driver(&ad193x_i2c_driver);
+	if (ret != 0) {
+		printk(KERN_ERR "Failed to register AD193X I2C driver: %d\n",
+				ret);
+	}
+#endif
+
+#if defined(CONFIG_SPI_MASTER)
+	ret = spi_register_driver(&ad193x_spi_driver);
+	if (ret != 0) {
+		printk(KERN_ERR "Failed to register AD193X SPI driver: %d\n",
+				ret);
+	}
+#endif
+	return ret;
+}
+module_init(ad193x_modinit);
+
+static void __exit ad193x_modexit(void)
+{
+#if defined(CONFIG_SPI_MASTER)
+	spi_unregister_driver(&ad193x_spi_driver);
+#endif
+
+#if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
+	i2c_del_driver(&ad193x_i2c_driver);
+#endif
+}
+module_exit(ad193x_modexit);
+
+MODULE_DESCRIPTION("ASoC ad193x driver");
+MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>");
+MODULE_LICENSE("GPL");
diff --git a/sound/soc/codecs/ad193x.h b/sound/soc/codecs/ad193x.h
new file mode 100644
index 000000000000..b240d1d67c22
--- /dev/null
+++ b/sound/soc/codecs/ad193x.h
@@ -0,0 +1,83 @@
+/*
+ * AD193X Audio Codec driver
+ *
+ * Copyright 2010 Analog Devices Inc.
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#ifndef __AD193X_H__
+#define __AD193X_H__
+
+#define AD193X_PLL_CLK_CTRL0    0x800
+#define AD193X_PLL_POWERDOWN           0x01
+#define AD193X_PLL_CLK_CTRL1    0x801
+#define AD193X_DAC_CTRL0        0x802
+#define AD193X_DAC_POWERDOWN           0x01
+#define AD193X_DAC_SERFMT_MASK		0xC0
+#define AD193X_DAC_SERFMT_STEREO	(0 << 6)
+#define AD193X_DAC_SERFMT_TDM		(1 << 6)
+#define AD193X_DAC_CTRL1        0x803
+#define AD193X_DAC_2_CHANNELS   0
+#define AD193X_DAC_4_CHANNELS   1
+#define AD193X_DAC_8_CHANNELS   2
+#define AD193X_DAC_16_CHANNELS  3
+#define AD193X_DAC_CHAN_SHFT    1
+#define AD193X_DAC_CHAN_MASK    (3 << AD193X_DAC_CHAN_SHFT)
+#define AD193X_DAC_LCR_MASTER   (1 << 4)
+#define AD193X_DAC_BCLK_MASTER  (1 << 5)
+#define AD193X_DAC_LEFT_HIGH    (1 << 3)
+#define AD193X_DAC_BCLK_INV     (1 << 7)
+#define AD193X_DAC_CTRL2        0x804
+#define AD193X_DAC_WORD_LEN_MASK	0xC
+#define AD193X_DAC_MASTER_MUTE  1
+#define AD193X_DAC_CHNL_MUTE    0x805
+#define AD193X_DACL1_MUTE       0
+#define AD193X_DACR1_MUTE       1
+#define AD193X_DACL2_MUTE       2
+#define AD193X_DACR2_MUTE       3
+#define AD193X_DACL3_MUTE       4
+#define AD193X_DACR3_MUTE       5
+#define AD193X_DACL4_MUTE       6
+#define AD193X_DACR4_MUTE       7
+#define AD193X_DAC_L1_VOL       0x806
+#define AD193X_DAC_R1_VOL       0x807
+#define AD193X_DAC_L2_VOL       0x808
+#define AD193X_DAC_R2_VOL       0x809
+#define AD193X_DAC_L3_VOL       0x80a
+#define AD193X_DAC_R3_VOL       0x80b
+#define AD193X_DAC_L4_VOL       0x80c
+#define AD193X_DAC_R4_VOL       0x80d
+#define AD193X_ADC_CTRL0        0x80e
+#define AD193X_ADC_POWERDOWN           0x01
+#define AD193X_ADC_HIGHPASS_FILTER	1
+#define AD193X_ADCL1_MUTE 		2
+#define AD193X_ADCR1_MUTE 		3
+#define AD193X_ADCL2_MUTE 		4
+#define AD193X_ADCR2_MUTE 		5
+#define AD193X_ADC_CTRL1        0x80f
+#define AD193X_ADC_SERFMT_MASK		0x60
+#define AD193X_ADC_SERFMT_STEREO	(0 << 5)
+#define AD193X_ADC_SERFMT_TDM		(1 << 2)
+#define AD193X_ADC_SERFMT_AUX		(2 << 5)
+#define AD193X_ADC_WORD_LEN_MASK	0x3
+#define AD193X_ADC_CTRL2        0x810
+#define AD193X_ADC_2_CHANNELS   0
+#define AD193X_ADC_4_CHANNELS   1
+#define AD193X_ADC_8_CHANNELS   2
+#define AD193X_ADC_16_CHANNELS  3
+#define AD193X_ADC_CHAN_SHFT    4
+#define AD193X_ADC_CHAN_MASK    (3 << AD193X_ADC_CHAN_SHFT)
+#define AD193X_ADC_LCR_MASTER   (1 << 3)
+#define AD193X_ADC_BCLK_MASTER  (1 << 6)
+#define AD193X_ADC_LEFT_HIGH    (1 << 2)
+#define AD193X_ADC_BCLK_INV     (1 << 1)
+
+#define AD193X_NUM_REGS          17
+
+extern struct snd_soc_dai ad193x_dai;
+extern struct snd_soc_codec_device soc_codec_dev_ad193x;
+extern int ad193x_bus_probe(struct device *dev, void *ctrl_data, int bus_type);
+extern int ad193x_bus_remove(struct device *dev);
+
+#endif