[deliverable/linux.git] / sound / soc / codecs / ak4104.c

/*
 * AK4104 ALSA SoC (ASoC) driver
 *
 * Copyright (c) 2009 Daniel Mack <daniel@caiaq.de>
 *
 *  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.
 */

#include <linux/module.h>
#include <sound/core.h>
#include <sound/soc.h>
#include <sound/initval.h>
#include <linux/spi/spi.h>
#include <sound/asoundef.h>

#include "ak4104.h"

/* AK4104 registers addresses */
#define AK4104_REG_CONTROL1		0x00
#define AK4104_REG_RESERVED		0x01
#define AK4104_REG_CONTROL2		0x02
#define AK4104_REG_TX			0x03
#define AK4104_REG_CHN_STATUS(x)	((x) + 0x04)
#define AK4104_NUM_REGS			10

#define AK4104_REG_MASK			0x1f
#define AK4104_READ			0xc0
#define AK4104_WRITE			0xe0
#define AK4104_RESERVED_VAL		0x5b

/* Bit masks for AK4104 registers */
#define AK4104_CONTROL1_RSTN		(1 << 0)
#define AK4104_CONTROL1_PW		(1 << 1)
#define AK4104_CONTROL1_DIF0		(1 << 2)
#define AK4104_CONTROL1_DIF1		(1 << 3)

#define AK4104_CONTROL2_SEL0		(1 << 0)
#define AK4104_CONTROL2_SEL1		(1 << 1)
#define AK4104_CONTROL2_MODE		(1 << 2)

#define AK4104_TX_TXE			(1 << 0)
#define AK4104_TX_V			(1 << 1)

#define DRV_NAME "ak4104"

struct ak4104_private {
	struct snd_soc_codec codec;
	u8 reg_cache[AK4104_NUM_REGS];
};

static int ak4104_fill_cache(struct snd_soc_codec *codec)
{
	int i;
	u8 *reg_cache = codec->reg_cache;
	struct spi_device *spi = codec->control_data;

	for (i = 0; i < codec->reg_cache_size; i++) {
		int ret = spi_w8r8(spi, i | AK4104_READ);
		if (ret < 0) {
			dev_err(&spi->dev, "SPI write failure\n");
			return ret;
		}

		reg_cache[i] = ret;
	}

	return 0;
}

static unsigned int ak4104_read_reg_cache(struct snd_soc_codec *codec,
					  unsigned int reg)
{
	u8 *reg_cache = codec->reg_cache;

	if (reg >= codec->reg_cache_size)
		return -EINVAL;

	return reg_cache[reg];
}

static int ak4104_spi_write(struct snd_soc_codec *codec, unsigned int reg,
			    unsigned int value)
{
	u8 *cache = codec->reg_cache;
	struct spi_device *spi = codec->control_data;

	if (reg >= codec->reg_cache_size)
		return -EINVAL;

	reg &= AK4104_REG_MASK;
	reg |= AK4104_WRITE;

	/* only write to the hardware if value has changed */
	if (cache[reg] != value) {
		u8 tmp[2] = { reg, value };
		if (spi_write(spi, tmp, sizeof(tmp))) {
			dev_err(&spi->dev, "SPI write failed\n");
			return -EIO;
		}

		cache[reg] = value;
	}

	return 0;
}

static int ak4104_set_dai_fmt(struct snd_soc_dai *codec_dai,
			      unsigned int format)
{
	struct snd_soc_codec *codec = codec_dai->codec;
	int val = 0;

	val = ak4104_read_reg_cache(codec, AK4104_REG_CONTROL1);
	if (val < 0)
		return val;

	val &= ~(AK4104_CONTROL1_DIF0 | AK4104_CONTROL1_DIF1);

	/* set DAI format */
	switch (format & SND_SOC_DAIFMT_FORMAT_MASK) {
	case SND_SOC_DAIFMT_RIGHT_J:
		break;
	case SND_SOC_DAIFMT_LEFT_J:
		val |= AK4104_CONTROL1_DIF0;
		break;
	case SND_SOC_DAIFMT_I2S:
		val |= AK4104_CONTROL1_DIF0 | AK4104_CONTROL1_DIF1;
		break;
	default:
		dev_err(codec->dev, "invalid dai format\n");
		return -EINVAL;
	}

	/* This device can only be slave */
	if ((format & SND_SOC_DAIFMT_MASTER_MASK) != SND_SOC_DAIFMT_CBS_CFS)
		return -EINVAL;

	return ak4104_spi_write(codec, AK4104_REG_CONTROL1, val);
}

static int ak4104_hw_params(struct snd_pcm_substream *substream,
			    struct snd_pcm_hw_params *params,
			    struct snd_soc_dai *dai)
{
	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	struct snd_soc_device *socdev = rtd->socdev;
	struct snd_soc_codec *codec = socdev->card->codec;
	int val = 0;

	/* set the IEC958 bits: consumer mode, no copyright bit */
	val |= IEC958_AES0_CON_NOT_COPYRIGHT;
	ak4104_spi_write(codec, AK4104_REG_CHN_STATUS(0), val);

	val = 0;

	switch (params_rate(params)) {
	case 44100:
		val |= IEC958_AES3_CON_FS_44100;
		break;
	case 48000:
		val |= IEC958_AES3_CON_FS_48000;
		break;
	case 32000:
		val |= IEC958_AES3_CON_FS_32000;
		break;
	default:
		dev_err(codec->dev, "unsupported sampling rate\n");
		return -EINVAL;
	}

	return ak4104_spi_write(codec, AK4104_REG_CHN_STATUS(3), val);
}

static struct snd_soc_dai_ops ak4101_dai_ops = {
	.hw_params = ak4104_hw_params,
	.set_fmt = ak4104_set_dai_fmt,
};

struct snd_soc_dai ak4104_dai = {
	.name = DRV_NAME,
	.playback = {
		.stream_name = "Playback",
		.channels_min = 2,
		.channels_max = 2,
		.rates = SNDRV_PCM_RATE_8000_192000,
		.formats = SNDRV_PCM_FMTBIT_S16_LE  |
			   SNDRV_PCM_FMTBIT_S24_3LE |
			   SNDRV_PCM_FMTBIT_S24_LE
	},
	.ops = &ak4101_dai_ops,
};

static struct snd_soc_codec *ak4104_codec;

static int ak4104_spi_probe(struct spi_device *spi)
{
	struct snd_soc_codec *codec;
	struct ak4104_private *ak4104;
	int ret, val;

	spi->bits_per_word = 8;
	spi->mode = SPI_MODE_0;
	ret = spi_setup(spi);
	if (ret < 0)
		return ret;

	ak4104 = kzalloc(sizeof(struct ak4104_private), GFP_KERNEL);
	if (!ak4104) {
		dev_err(&spi->dev, "could not allocate codec\n");
		return -ENOMEM;
	}

	codec = &ak4104->codec;
	mutex_init(&codec->mutex);
	INIT_LIST_HEAD(&codec->dapm_widgets);
	INIT_LIST_HEAD(&codec->dapm_paths);

	codec->dev = &spi->dev;
	codec->name = DRV_NAME;
	codec->owner = THIS_MODULE;
	codec->dai = &ak4104_dai;
	codec->num_dai = 1;
	codec->private_data = ak4104;
	codec->control_data = spi;
	codec->reg_cache = ak4104->reg_cache;
	codec->reg_cache_size = AK4104_NUM_REGS;

	/* read all regs and fill the cache */
	ret = ak4104_fill_cache(codec);
	if (ret < 0) {
		dev_err(&spi->dev, "failed to fill register cache\n");
		return ret;
	}

	/* read the 'reserved' register - according to the datasheet, it
	 * should contain 0x5b. Not a good way to verify the presence of
	 * the device, but there is no hardware ID register. */
	if (ak4104_read_reg_cache(codec, AK4104_REG_RESERVED) !=
					 AK4104_RESERVED_VAL) {
		ret = -ENODEV;
		goto error_free_codec;
	}

	/* set power-up and non-reset bits */
	val = ak4104_read_reg_cache(codec, AK4104_REG_CONTROL1);
	val |= AK4104_CONTROL1_PW | AK4104_CONTROL1_RSTN;
	ret = ak4104_spi_write(codec, AK4104_REG_CONTROL1, val);
	if (ret < 0)
		goto error_free_codec;

	/* enable transmitter */
	val = ak4104_read_reg_cache(codec, AK4104_REG_TX);
	val |= AK4104_TX_TXE;
	ret = ak4104_spi_write(codec, AK4104_REG_TX, val);
	if (ret < 0)
		goto error_free_codec;

	ak4104_codec = codec;
	ret = snd_soc_register_dai(&ak4104_dai);
	if (ret < 0) {
		dev_err(&spi->dev, "failed to register DAI\n");
		goto error_free_codec;
	}

	spi_set_drvdata(spi, ak4104);
	dev_info(&spi->dev, "SPI device initialized\n");
	return 0;

error_free_codec:
	kfree(ak4104);
	ak4104_dai.dev = NULL;
	return ret;
}

static int __devexit ak4104_spi_remove(struct spi_device *spi)
{
	int ret, val;
	struct ak4104_private *ak4104 = spi_get_drvdata(spi);

	val = ak4104_read_reg_cache(&ak4104->codec, AK4104_REG_CONTROL1);
	if (val < 0)
		return val;

	/* clear power-up and non-reset bits */
	val &= ~(AK4104_CONTROL1_PW | AK4104_CONTROL1_RSTN);
	ret = ak4104_spi_write(&ak4104->codec, AK4104_REG_CONTROL1, val);
	if (ret < 0)
		return ret;

	ak4104_codec = NULL;
	kfree(ak4104);
	return 0;
}

static int ak4104_probe(struct platform_device *pdev)
{
	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
	struct snd_soc_codec *codec = ak4104_codec;
	int ret;

	/* Connect the codec to the socdev.  snd_soc_new_pcms() needs this. */
	socdev->card->codec = 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\n");
		return ret;
	}

	return 0;
}

static int ak4104_remove(struct platform_device *pdev)
{
	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
	snd_soc_free_pcms(socdev);
	return 0;
};

struct snd_soc_codec_device soc_codec_device_ak4104 = {
	.probe = 	ak4104_probe,
	.remove = 	ak4104_remove
};
EXPORT_SYMBOL_GPL(soc_codec_device_ak4104);

static struct spi_driver ak4104_spi_driver = {
	.driver  = {
		.name   = DRV_NAME,
		.owner  = THIS_MODULE,
	},
	.probe  = ak4104_spi_probe,
	.remove = __devexit_p(ak4104_spi_remove),
};

static int __init ak4104_init(void)
{
	pr_info("Asahi Kasei AK4104 ALSA SoC Codec Driver\n");
	return spi_register_driver(&ak4104_spi_driver);
}
module_init(ak4104_init);

static void __exit ak4104_exit(void)
{
	spi_unregister_driver(&ak4104_spi_driver);
}
module_exit(ak4104_exit);

MODULE_AUTHOR("Daniel Mack <daniel@caiaq.de>");
MODULE_DESCRIPTION("Asahi Kasei AK4104 ALSA SoC driver");
MODULE_LICENSE("GPL");
Commit	Line	Data
a381934e DM	1	/*
	2	* AK4104 ALSA SoC (ASoC) driver
	3	*
	4	* Copyright (c) 2009 Daniel Mack <daniel@caiaq.de>
	5	*
	6	* This program is free software; you can redistribute it and/or modify it
	7	* under the terms of the GNU General Public License as published by the
	8	* Free Software Foundation; either version 2 of the License, or (at your
	9	* option) any later version.
	10	*/
	11
	12	#include <linux/module.h>
	13	#include <sound/core.h>
	14	#include <sound/soc.h>
	15	#include <sound/initval.h>
	16	#include <linux/spi/spi.h>
	17	#include <sound/asoundef.h>
	18
	19	#include "ak4104.h"
	20
	21	/* AK4104 registers addresses */
	22	#define AK4104_REG_CONTROL1 0x00
	23	#define AK4104_REG_RESERVED 0x01
	24	#define AK4104_REG_CONTROL2 0x02
	25	#define AK4104_REG_TX 0x03
	26	#define AK4104_REG_CHN_STATUS(x) ((x) + 0x04)
	27	#define AK4104_NUM_REGS 10
	28
	29	#define AK4104_REG_MASK 0x1f
	30	#define AK4104_READ 0xc0
	31	#define AK4104_WRITE 0xe0
	32	#define AK4104_RESERVED_VAL 0x5b
	33
	34	/* Bit masks for AK4104 registers */
	35	#define AK4104_CONTROL1_RSTN (1 << 0)
	36	#define AK4104_CONTROL1_PW (1 << 1)
	37	#define AK4104_CONTROL1_DIF0 (1 << 2)
	38	#define AK4104_CONTROL1_DIF1 (1 << 3)
	39
	40	#define AK4104_CONTROL2_SEL0 (1 << 0)
	41	#define AK4104_CONTROL2_SEL1 (1 << 1)
	42	#define AK4104_CONTROL2_MODE (1 << 2)
	43
	44	#define AK4104_TX_TXE (1 << 0)
	45	#define AK4104_TX_V (1 << 1)
	46
	47	#define DRV_NAME "ak4104"
	48
	49	struct ak4104_private {
	50	struct snd_soc_codec codec;
	51	u8 reg_cache[AK4104_NUM_REGS];
	52	};
	53
	54	static int ak4104_fill_cache(struct snd_soc_codec *codec)
	55	{
	56	int i;
	57	u8 *reg_cache = codec->reg_cache;
	58	struct spi_device *spi = codec->control_data;
	59
	60	for (i = 0; i < codec->reg_cache_size; i++) {
	61	int ret = spi_w8r8(spi, i \| AK4104_READ);
	62	if (ret < 0) {
	63	dev_err(&spi->dev, "SPI write failure\n");
	64	return ret;
65	}
66
67	reg_cache[i] = ret;
68	}
69
70	return 0;
71	}
72
73	static unsigned int ak4104_read_reg_cache(struct snd_soc_codec *codec,
74	unsigned int reg)
75	{
76	u8 *reg_cache = codec->reg_cache;
77
78	if (reg >= codec->reg_cache_size)
79	return -EINVAL;
80
81	return reg_cache[reg];
82	}
83
84	static int ak4104_spi_write(struct snd_soc_codec *codec, unsigned int reg,
85	unsigned int value)
86	{
87	u8 *cache = codec->reg_cache;
88	struct spi_device *spi = codec->control_data;
89
90	if (reg >= codec->reg_cache_size)
91	return -EINVAL;
92
93	reg &= AK4104_REG_MASK;
94	reg \|= AK4104_WRITE;
95
96	/* only write to the hardware if value has changed */
97	if (cache[reg] != value) {
98	u8 tmp[2] = { reg, value };
99	if (spi_write(spi, tmp, sizeof(tmp))) {
100	dev_err(&spi->dev, "SPI write failed\n");
101	return -EIO;
102	}
103
104	cache[reg] = value;
105	}
106
107	return 0;
108	}
109
110	static int ak4104_set_dai_fmt(struct snd_soc_dai *codec_dai,
111	unsigned int format)
112	{
113	struct snd_soc_codec *codec = codec_dai->codec;
114	int val = 0;
115
116	val = ak4104_read_reg_cache(codec, AK4104_REG_CONTROL1);
117	if (val < 0)
118	return val;
119
120	val &= ~(AK4104_CONTROL1_DIF0 \| AK4104_CONTROL1_DIF1);
121
122	/* set DAI format */
123	switch (format & SND_SOC_DAIFMT_FORMAT_MASK) {
124	case SND_SOC_DAIFMT_RIGHT_J:
125	break;
126	case SND_SOC_DAIFMT_LEFT_J:
127	val \|= AK4104_CONTROL1_DIF0;
128	break;
129	case SND_SOC_DAIFMT_I2S:
130	val \|= AK4104_CONTROL1_DIF0 \| AK4104_CONTROL1_DIF1;
131	break;
132	default:
133	dev_err(codec->dev, "invalid dai format\n");
134	return -EINVAL;
135	}
136
137	/* This device can only be slave */
138	if ((format & SND_SOC_DAIFMT_MASTER_MASK) != SND_SOC_DAIFMT_CBS_CFS)
139	return -EINVAL;
140
141	return ak4104_spi_write(codec, AK4104_REG_CONTROL1, val);
142	}
143
144	static int ak4104_hw_params(struct snd_pcm_substream *substream,
145	struct snd_pcm_hw_params *params,
146	struct snd_soc_dai *dai)
147	{
148	struct snd_soc_pcm_runtime *rtd = substream->private_data;
149	struct snd_soc_device *socdev = rtd->socdev;
150	struct snd_soc_codec *codec = socdev->card->codec;
151	int val = 0;
152
153	/* set the IEC958 bits: consumer mode, no copyright bit */
154	val \|= IEC958_AES0_CON_NOT_COPYRIGHT;
155	ak4104_spi_write(codec, AK4104_REG_CHN_STATUS(0), val);
156
157	val = 0;
158
159	switch (params_rate(params)) {
160	case 44100:
161	val \|= IEC958_AES3_CON_FS_44100;
162	break;
163	case 48000:
164	val \|= IEC958_AES3_CON_FS_48000;
165	break;
166	case 32000:
167	val \|= IEC958_AES3_CON_FS_32000;
168	break;
169	default:
170	dev_err(codec->dev, "unsupported sampling rate\n");
171	return -EINVAL;
172	}
173
174	return ak4104_spi_write(codec, AK4104_REG_CHN_STATUS(3), val);
175	}
176
65ec1cd1 MB	177	static struct snd_soc_dai_ops ak4101_dai_ops = {
	178	.hw_params = ak4104_hw_params,
	179	.set_fmt = ak4104_set_dai_fmt,
	180	};
	181
a381934e DM	182	struct snd_soc_dai ak4104_dai = {
	183	.name = DRV_NAME,
	184	.playback = {
	185	.stream_name = "Playback",
	186	.channels_min = 2,
	187	.channels_max = 2,
617b14c5	188	.rates = SNDRV_PCM_RATE_8000_192000,
a381934e DM	189	.formats = SNDRV_PCM_FMTBIT_S16_LE \|
	190	SNDRV_PCM_FMTBIT_S24_3LE \|
	191	SNDRV_PCM_FMTBIT_S24_LE
	192	},
65ec1cd1	193	.ops = &ak4101_dai_ops,
a381934e DM	194	};
	195
	196	static struct snd_soc_codec *ak4104_codec;
	197
	198	static int ak4104_spi_probe(struct spi_device *spi)
	199	{
	200	struct snd_soc_codec *codec;
	201	struct ak4104_private *ak4104;
	202	int ret, val;
	203
	204	spi->bits_per_word = 8;
	205	spi->mode = SPI_MODE_0;
	206	ret = spi_setup(spi);
	207	if (ret < 0)
	208	return ret;
	209
	210	ak4104 = kzalloc(sizeof(struct ak4104_private), GFP_KERNEL);
	211	if (!ak4104) {
	212	dev_err(&spi->dev, "could not allocate codec\n");
	213	return -ENOMEM;
	214	}
	215
	216	codec = &ak4104->codec;
	217	mutex_init(&codec->mutex);
	218	INIT_LIST_HEAD(&codec->dapm_widgets);
	219	INIT_LIST_HEAD(&codec->dapm_paths);
	220
	221	codec->dev = &spi->dev;
	222	codec->name = DRV_NAME;
	223	codec->owner = THIS_MODULE;
	224	codec->dai = &ak4104_dai;
	225	codec->num_dai = 1;
	226	codec->private_data = ak4104;
	227	codec->control_data = spi;
	228	codec->reg_cache = ak4104->reg_cache;
	229	codec->reg_cache_size = AK4104_NUM_REGS;
	230
	231	/* read all regs and fill the cache */
	232	ret = ak4104_fill_cache(codec);
	233	if (ret < 0) {
	234	dev_err(&spi->dev, "failed to fill register cache\n");
	235	return ret;
	236	}
	237
	238	/* read the 'reserved' register - according to the datasheet, it
	239	* should contain 0x5b. Not a good way to verify the presence of
	240	* the device, but there is no hardware ID register. */
	241	if (ak4104_read_reg_cache(codec, AK4104_REG_RESERVED) !=
	242	AK4104_RESERVED_VAL) {
	243	ret = -ENODEV;
	244	goto error_free_codec;
	245	}
	246
	247	/* set power-up and non-reset bits */
	248	val = ak4104_read_reg_cache(codec, AK4104_REG_CONTROL1);
	249	val \|= AK4104_CONTROL1_PW \| AK4104_CONTROL1_RSTN;
	250	ret = ak4104_spi_write(codec, AK4104_REG_CONTROL1, val);
	251	if (ret < 0)
	252	goto error_free_codec;
	253
	254	/* enable transmitter */
	255	val = ak4104_read_reg_cache(codec, AK4104_REG_TX);
	256	val \|= AK4104_TX_TXE;
	257	ret = ak4104_spi_write(codec, AK4104_REG_TX, val);
258	if (ret < 0)
259	goto error_free_codec;
260
261	ak4104_codec = codec;
262	ret = snd_soc_register_dai(&ak4104_dai);
263	if (ret < 0) {
264	dev_err(&spi->dev, "failed to register DAI\n");
265	goto error_free_codec;
266	}
267
268	spi_set_drvdata(spi, ak4104);
269	dev_info(&spi->dev, "SPI device initialized\n");
270	return 0;
271
272	error_free_codec:
273	kfree(ak4104);
274	ak4104_dai.dev = NULL;
275	return ret;
276	}
277
278	static int __devexit ak4104_spi_remove(struct spi_device *spi)
279	{
280	int ret, val;
281	struct ak4104_private *ak4104 = spi_get_drvdata(spi);
282
283	val = ak4104_read_reg_cache(&ak4104->codec, AK4104_REG_CONTROL1);
284	if (val < 0)
285	return val;
286
287	/* clear power-up and non-reset bits */
288	val &= ~(AK4104_CONTROL1_PW \| AK4104_CONTROL1_RSTN);
289	ret = ak4104_spi_write(&ak4104->codec, AK4104_REG_CONTROL1, val);
290	if (ret < 0)
291	return ret;
292
293	ak4104_codec = NULL;
294	kfree(ak4104);
295	return 0;
296	}
297
298	static int ak4104_probe(struct platform_device *pdev)
299	{
300	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
301	struct snd_soc_codec *codec = ak4104_codec;
302	int ret;
303
304	/* Connect the codec to the socdev. snd_soc_new_pcms() needs this. */
305	socdev->card->codec = codec;
306
307	/* Register PCMs */
308	ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
309	if (ret < 0) {
310	dev_err(codec->dev, "failed to create pcms\n");
311	return ret;
312	}
313
a381934e DM	314	return 0;
	315	}
	316
	317	static int ak4104_remove(struct platform_device *pdev)
	318	{
	319	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
	320	snd_soc_free_pcms(socdev);
	321	return 0;
	322	};
	323
	324	struct snd_soc_codec_device soc_codec_device_ak4104 = {
	325	.probe = ak4104_probe,
	326	.remove = ak4104_remove
	327	};
	328	EXPORT_SYMBOL_GPL(soc_codec_device_ak4104);
	329
	330	static struct spi_driver ak4104_spi_driver = {
	331	.driver = {
	332	.name = DRV_NAME,
	333	.owner = THIS_MODULE,
	334	},
	335	.probe = ak4104_spi_probe,
	336	.remove = __devexit_p(ak4104_spi_remove),
	337	};
	338
	339	static int __init ak4104_init(void)
	340	{
	341	pr_info("Asahi Kasei AK4104 ALSA SoC Codec Driver\n");
	342	return spi_register_driver(&ak4104_spi_driver);
	343	}
	344	module_init(ak4104_init);
	345
	346	static void __exit ak4104_exit(void)
	347	{
	348	spi_unregister_driver(&ak4104_spi_driver);
	349	}
	350	module_exit(ak4104_exit);
	351
	352	MODULE_AUTHOR("Daniel Mack <daniel@caiaq.de>");
	353	MODULE_DESCRIPTION("Asahi Kasei AK4104 ALSA SoC driver");
	354	MODULE_LICENSE("GPL");
	355