[deliverable/linux.git] / sound / soc / davinci / davinci-evm.c

/*
 * ASoC driver for TI DAVINCI EVM platform
 *
 * Author:      Vladimir Barinov, <vbarinov@embeddedalley.com>
 * Copyright:   (C) 2007 MontaVista Software, Inc., <source@mvista.com>
 *
 * This program 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.
 */

#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/timer.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>
#include <linux/i2c.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/soc.h>
#include <sound/soc-dapm.h>

#include <asm/dma.h>
#include <asm/mach-types.h>

#include <mach/asp.h>
#include <mach/edma.h>
#include <mach/mux.h>

#include "../codecs/tlv320aic3x.h"
#include "../codecs/spdif_transciever.h"
#include "davinci-pcm.h"
#include "davinci-i2s.h"
#include "davinci-mcasp.h"

#define AUDIO_FORMAT (SND_SOC_DAIFMT_DSP_B | \
		SND_SOC_DAIFMT_CBM_CFM | SND_SOC_DAIFMT_IB_NF)
static int evm_hw_params(struct snd_pcm_substream *substream,
			 struct snd_pcm_hw_params *params)
{
	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	struct snd_soc_dai *codec_dai = rtd->dai->codec_dai;
	struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
	int ret = 0;
	unsigned sysclk;

	/* ASP1 on DM355 EVM is clocked by an external oscillator */
	if (machine_is_davinci_dm355_evm() || machine_is_davinci_dm6467_evm() ||
	    machine_is_davinci_dm365_evm())
		sysclk = 27000000;

	/* ASP0 in DM6446 EVM is clocked by U55, as configured by
	 * board-dm644x-evm.c using GPIOs from U18.  There are six
	 * options; here we "know" we use a 48 KHz sample rate.
	 */
	else if (machine_is_davinci_evm())
		sysclk = 12288000;

	else if (machine_is_davinci_da830_evm() ||
				machine_is_davinci_da850_evm())
		sysclk = 24576000;

	else
		return -EINVAL;

	/* set codec DAI configuration */
	ret = snd_soc_dai_set_fmt(codec_dai, AUDIO_FORMAT);
	if (ret < 0)
		return ret;

	/* set cpu DAI configuration */
	ret = snd_soc_dai_set_fmt(cpu_dai, AUDIO_FORMAT);
	if (ret < 0)
		return ret;

	/* set the codec system clock */
	ret = snd_soc_dai_set_sysclk(codec_dai, 0, sysclk, SND_SOC_CLOCK_OUT);
	if (ret < 0)
		return ret;

	return 0;
}

static int evm_spdif_hw_params(struct snd_pcm_substream *substream,
				struct snd_pcm_hw_params *params)
{
	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;

	/* set cpu DAI configuration */
	return snd_soc_dai_set_fmt(cpu_dai, AUDIO_FORMAT);
}

static struct snd_soc_ops evm_ops = {
	.hw_params = evm_hw_params,
};

static struct snd_soc_ops evm_spdif_ops = {
	.hw_params = evm_spdif_hw_params,
};

/* davinci-evm machine dapm widgets */
static const struct snd_soc_dapm_widget aic3x_dapm_widgets[] = {
	SND_SOC_DAPM_HP("Headphone Jack", NULL),
	SND_SOC_DAPM_LINE("Line Out", NULL),
	SND_SOC_DAPM_MIC("Mic Jack", NULL),
	SND_SOC_DAPM_LINE("Line In", NULL),
};

/* davinci-evm machine audio_mapnections to the codec pins */
static const struct snd_soc_dapm_route audio_map[] = {
	/* Headphone connected to HPLOUT, HPROUT */
	{"Headphone Jack", NULL, "HPLOUT"},
	{"Headphone Jack", NULL, "HPROUT"},

	/* Line Out connected to LLOUT, RLOUT */
	{"Line Out", NULL, "LLOUT"},
	{"Line Out", NULL, "RLOUT"},

	/* Mic connected to (MIC3L | MIC3R) */
	{"MIC3L", NULL, "Mic Bias 2V"},
	{"MIC3R", NULL, "Mic Bias 2V"},
	{"Mic Bias 2V", NULL, "Mic Jack"},

	/* Line In connected to (LINE1L | LINE2L), (LINE1R | LINE2R) */
	{"LINE1L", NULL, "Line In"},
	{"LINE2L", NULL, "Line In"},
	{"LINE1R", NULL, "Line In"},
	{"LINE2R", NULL, "Line In"},
};

/* Logic for a aic3x as connected on a davinci-evm */
static int evm_aic3x_init(struct snd_soc_codec *codec)
{
	/* Add davinci-evm specific widgets */
	snd_soc_dapm_new_controls(codec, aic3x_dapm_widgets,
				  ARRAY_SIZE(aic3x_dapm_widgets));

	/* Set up davinci-evm specific audio path audio_map */
	snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));

	/* not connected */
	snd_soc_dapm_disable_pin(codec, "MONO_LOUT");
	snd_soc_dapm_disable_pin(codec, "HPLCOM");
	snd_soc_dapm_disable_pin(codec, "HPRCOM");

	/* always connected */
	snd_soc_dapm_enable_pin(codec, "Headphone Jack");
	snd_soc_dapm_enable_pin(codec, "Line Out");
	snd_soc_dapm_enable_pin(codec, "Mic Jack");
	snd_soc_dapm_enable_pin(codec, "Line In");

	snd_soc_dapm_sync(codec);

	return 0;
}

/* davinci-evm digital audio interface glue - connects codec <--> CPU */
static struct snd_soc_dai_link evm_dai = {
	.name = "TLV320AIC3X",
	.stream_name = "AIC3X",
	.cpu_dai = &davinci_i2s_dai,
	.codec_dai = &aic3x_dai,
	.init = evm_aic3x_init,
	.ops = &evm_ops,
};

static struct snd_soc_dai_link dm6467_evm_dai[] = {
	{
		.name = "TLV320AIC3X",
		.stream_name = "AIC3X",
		.cpu_dai = &davinci_mcasp_dai[DAVINCI_MCASP_I2S_DAI],
		.codec_dai = &aic3x_dai,
		.init = evm_aic3x_init,
		.ops = &evm_ops,
	},
	{
		.name = "McASP",
		.stream_name = "spdif",
		.cpu_dai = &davinci_mcasp_dai[DAVINCI_MCASP_DIT_DAI],
		.codec_dai = &dit_stub_dai,
		.ops = &evm_spdif_ops,
	},
};
static struct snd_soc_dai_link da8xx_evm_dai = {
	.name = "TLV320AIC3X",
	.stream_name = "AIC3X",
	.cpu_dai = &davinci_mcasp_dai[DAVINCI_MCASP_I2S_DAI],
	.codec_dai = &aic3x_dai,
	.init = evm_aic3x_init,
	.ops = &evm_ops,
};

/* davinci dm6446, dm355 or dm365 evm audio machine driver */
static struct snd_soc_card snd_soc_card_evm = {
	.name = "DaVinci EVM",
	.platform = &davinci_soc_platform,
	.dai_link = &evm_dai,
	.num_links = 1,
};

/* davinci dm6467 evm audio machine driver */
static struct snd_soc_card dm6467_snd_soc_card_evm = {
	.name = "DaVinci DM6467 EVM",
	.platform = &davinci_soc_platform,
	.dai_link = dm6467_evm_dai,
	.num_links = ARRAY_SIZE(dm6467_evm_dai),
};

static struct snd_soc_card da830_snd_soc_card = {
	.name = "DA830/OMAP-L137 EVM",
	.dai_link = &da8xx_evm_dai,
	.platform = &davinci_soc_platform,
	.num_links = 1,
};

static struct snd_soc_card da850_snd_soc_card = {
	.name = "DA850/OMAP-L138 EVM",
	.dai_link = &da8xx_evm_dai,
	.platform = &davinci_soc_platform,
	.num_links = 1,
};

static struct aic3x_setup_data aic3x_setup;

/* evm audio subsystem */
static struct snd_soc_device evm_snd_devdata = {
	.card = &snd_soc_card_evm,
	.codec_dev = &soc_codec_dev_aic3x,
	.codec_data = &aic3x_setup,
};

/* evm audio subsystem */
static struct snd_soc_device dm6467_evm_snd_devdata = {
	.card = &dm6467_snd_soc_card_evm,
	.codec_dev = &soc_codec_dev_aic3x,
	.codec_data = &aic3x_setup,
};

/* evm audio subsystem */
static struct snd_soc_device da830_evm_snd_devdata = {
	.card = &da830_snd_soc_card,
	.codec_dev = &soc_codec_dev_aic3x,
	.codec_data = &aic3x_setup,
};

static struct snd_soc_device da850_evm_snd_devdata = {
	.card		= &da850_snd_soc_card,
	.codec_dev	= &soc_codec_dev_aic3x,
	.codec_data	= &aic3x_setup,
};

static struct platform_device *evm_snd_device;

static int __init evm_init(void)
{
	struct snd_soc_device *evm_snd_dev_data;
	int index;
	int ret;

	if (machine_is_davinci_evm() || machine_is_davinci_dm365_evm()) {
		evm_snd_dev_data = &evm_snd_devdata;
		index = 0;
	} else if (machine_is_davinci_dm355_evm()) {
		evm_snd_dev_data = &evm_snd_devdata;
		index = 1;
	} else if (machine_is_davinci_dm6467_evm()) {
		evm_snd_dev_data = &dm6467_evm_snd_devdata;
		index = 0;
	} else if (machine_is_davinci_da830_evm()) {
		evm_snd_dev_data = &da830_evm_snd_devdata;
		index = 1;
	} else if (machine_is_davinci_da850_evm()) {
		evm_snd_dev_data = &da850_evm_snd_devdata;
		index = 0;
	} else
		return -EINVAL;

	evm_snd_device = platform_device_alloc("soc-audio", index);
	if (!evm_snd_device)
		return -ENOMEM;

	platform_set_drvdata(evm_snd_device, evm_snd_dev_data);
	evm_snd_dev_data->dev = &evm_snd_device->dev;
	ret = platform_device_add(evm_snd_device);
	if (ret)
		platform_device_put(evm_snd_device);

	return ret;
}

static void __exit evm_exit(void)
{
	platform_device_unregister(evm_snd_device);
}

module_init(evm_init);
module_exit(evm_exit);

MODULE_AUTHOR("Vladimir Barinov");
MODULE_DESCRIPTION("TI DAVINCI EVM ASoC driver");
MODULE_LICENSE("GPL");
Commit	Line	Data
310355c1 VB	1	/*
	2	* ASoC driver for TI DAVINCI EVM platform
	3	*
d6b52039	4	* Author: Vladimir Barinov, <vbarinov@embeddedalley.com>
310355c1 VB	5	* Copyright: (C) 2007 MontaVista Software, Inc., <source@mvista.com>
	6	*
	7	* This program is free software; you can redistribute it and/or modify
	8	* it under the terms of the GNU General Public License version 2 as
	9	* published by the Free Software Foundation.
	10	*/
	11
	12	#include <linux/module.h>
	13	#include <linux/moduleparam.h>
	14	#include <linux/timer.h>
	15	#include <linux/interrupt.h>
	16	#include <linux/platform_device.h>
aa6b904e	17	#include <linux/i2c.h>
310355c1 VB	18	#include <sound/core.h>
	19	#include <sound/pcm.h>
	20	#include <sound/soc.h>
	21	#include <sound/soc-dapm.h>
	22
310355c1	23	#include <asm/dma.h>
f492ec9f DB	24	#include <asm/mach-types.h>
	25
	26	#include <mach/asp.h>
	27	#include <mach/edma.h>
	28	#include <mach/mux.h>
310355c1 VB	29
310355c1 VB	30	#include "../codecs/tlv320aic3x.h"
04f80f5c	31	#include "../codecs/spdif_transciever.h"
310355c1 VB	32	#include "davinci-pcm.h"
310355c1 VB	33	#include "davinci-i2s.h"
04f80f5c	34	#include "davinci-mcasp.h"
310355c1	35
d6f83396 TK	36	#define AUDIO_FORMAT (SND_SOC_DAIFMT_DSP_B \| \
d6f83396 TK	37	SND_SOC_DAIFMT_CBM_CFM \| SND_SOC_DAIFMT_IB_NF)
310355c1 VB	38	static int evm_hw_params(struct snd_pcm_substream *substream,
	39	struct snd_pcm_hw_params *params)
	40	{
	41	struct snd_soc_pcm_runtime *rtd = substream->private_data;
9cb132d7 LG	42	struct snd_soc_dai *codec_dai = rtd->dai->codec_dai;
9cb132d7 LG	43	struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
310355c1	44	int ret = 0;
05d5e991 DB	45	unsigned sysclk;
	46
	47	/* ASP1 on DM355 EVM is clocked by an external oscillator */
9b95b166 MA	48	if (machine_is_davinci_dm355_evm() \|\| machine_is_davinci_dm6467_evm() \|\|
9b95b166 MA	49	machine_is_davinci_dm365_evm())
05d5e991 DB	50	sysclk = 27000000;
	51
	52	/* ASP0 in DM6446 EVM is clocked by U55, as configured by
	53	* board-dm644x-evm.c using GPIOs from U18. There are six
	54	* options; here we "know" we use a 48 KHz sample rate.
	55	*/
	56	else if (machine_is_davinci_evm())
	57	sysclk = 12288000;
	58
30230f4c C	59	else if (machine_is_davinci_da830_evm() \|\|
30230f4c C	60	machine_is_davinci_da850_evm())
7ae5945f C	61	sysclk = 24576000;
7ae5945f C	62
05d5e991 DB	63	else
05d5e991 DB	64	return -EINVAL;
310355c1 VB	65
310355c1 VB	66	/* set codec DAI configuration */
9e031624	67	ret = snd_soc_dai_set_fmt(codec_dai, AUDIO_FORMAT);
310355c1 VB	68	if (ret < 0)
	69	return ret;
	70
	71	/* set cpu DAI configuration */
9e031624	72	ret = snd_soc_dai_set_fmt(cpu_dai, AUDIO_FORMAT);
310355c1 VB	73	if (ret < 0)
	74	return ret;
	75
	76	/* set the codec system clock */
05d5e991	77	ret = snd_soc_dai_set_sysclk(codec_dai, 0, sysclk, SND_SOC_CLOCK_OUT);
310355c1 VB	78	if (ret < 0)
	79	return ret;
	80
	81	return 0;
	82	}
	83
8d43d1bc C	84	static int evm_spdif_hw_params(struct snd_pcm_substream *substream,
	85	struct snd_pcm_hw_params *params)
	86	{
	87	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	88	struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
	89
	90	/* set cpu DAI configuration */
	91	return snd_soc_dai_set_fmt(cpu_dai, AUDIO_FORMAT);
	92	}
	93
310355c1 VB	94	static struct snd_soc_ops evm_ops = {
	95	.hw_params = evm_hw_params,
	96	};
	97
8d43d1bc C	98	static struct snd_soc_ops evm_spdif_ops = {
	99	.hw_params = evm_spdif_hw_params,
	100	};
	101
310355c1 VB	102	/* davinci-evm machine dapm widgets */
	103	static const struct snd_soc_dapm_widget aic3x_dapm_widgets[] = {
	104	SND_SOC_DAPM_HP("Headphone Jack", NULL),
	105	SND_SOC_DAPM_LINE("Line Out", NULL),
	106	SND_SOC_DAPM_MIC("Mic Jack", NULL),
	107	SND_SOC_DAPM_LINE("Line In", NULL),
	108	};
	109
	110	/* davinci-evm machine audio_mapnections to the codec pins */
acf497f9	111	static const struct snd_soc_dapm_route audio_map[] = {
310355c1 VB	112	/* Headphone connected to HPLOUT, HPROUT */
	113	{"Headphone Jack", NULL, "HPLOUT"},
	114	{"Headphone Jack", NULL, "HPROUT"},
	115
	116	/* Line Out connected to LLOUT, RLOUT */
	117	{"Line Out", NULL, "LLOUT"},
	118	{"Line Out", NULL, "RLOUT"},
	119
	120	/* Mic connected to (MIC3L \| MIC3R) */
	121	{"MIC3L", NULL, "Mic Bias 2V"},
	122	{"MIC3R", NULL, "Mic Bias 2V"},
	123	{"Mic Bias 2V", NULL, "Mic Jack"},
	124
	125	/* Line In connected to (LINE1L \| LINE2L), (LINE1R \| LINE2R) */
	126	{"LINE1L", NULL, "Line In"},
	127	{"LINE2L", NULL, "Line In"},
	128	{"LINE1R", NULL, "Line In"},
	129	{"LINE2R", NULL, "Line In"},
310355c1 VB	130	};
	131
	132	/* Logic for a aic3x as connected on a davinci-evm */
	133	static int evm_aic3x_init(struct snd_soc_codec *codec)
	134	{
310355c1	135	/* Add davinci-evm specific widgets */
acf497f9 MB	136	snd_soc_dapm_new_controls(codec, aic3x_dapm_widgets,
acf497f9 MB	137	ARRAY_SIZE(aic3x_dapm_widgets));
310355c1 VB	138
310355c1 VB	139	/* Set up davinci-evm specific audio path audio_map */
acf497f9	140	snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));
310355c1 VB	141
310355c1 VB	142	/* not connected */
a5302181 LG	143	snd_soc_dapm_disable_pin(codec, "MONO_LOUT");
	144	snd_soc_dapm_disable_pin(codec, "HPLCOM");
	145	snd_soc_dapm_disable_pin(codec, "HPRCOM");
310355c1 VB	146
310355c1 VB	147	/* always connected */
a5302181 LG	148	snd_soc_dapm_enable_pin(codec, "Headphone Jack");
	149	snd_soc_dapm_enable_pin(codec, "Line Out");
	150	snd_soc_dapm_enable_pin(codec, "Mic Jack");
	151	snd_soc_dapm_enable_pin(codec, "Line In");
310355c1	152
a5302181	153	snd_soc_dapm_sync(codec);
310355c1 VB	154
	155	return 0;
	156	}
	157
	158	/* davinci-evm digital audio interface glue - connects codec <--> CPU */
	159	static struct snd_soc_dai_link evm_dai = {
	160	.name = "TLV320AIC3X",
	161	.stream_name = "AIC3X",
	162	.cpu_dai = &davinci_i2s_dai,
	163	.codec_dai = &aic3x_dai,
	164	.init = evm_aic3x_init,
	165	.ops = &evm_ops,
	166	};
	167
04f80f5c C	168	static struct snd_soc_dai_link dm6467_evm_dai[] = {
	169	{
	170	.name = "TLV320AIC3X",
	171	.stream_name = "AIC3X",
	172	.cpu_dai = &davinci_mcasp_dai[DAVINCI_MCASP_I2S_DAI],
	173	.codec_dai = &aic3x_dai,
	174	.init = evm_aic3x_init,
	175	.ops = &evm_ops,
	176	},
	177	{
	178	.name = "McASP",
	179	.stream_name = "spdif",
	180	.cpu_dai = &davinci_mcasp_dai[DAVINCI_MCASP_DIT_DAI],
	181	.codec_dai = &dit_stub_dai,
8d43d1bc	182	.ops = &evm_spdif_ops,
04f80f5c C	183	},
04f80f5c C	184	};
30230f4c	185	static struct snd_soc_dai_link da8xx_evm_dai = {
7ae5945f C	186	.name = "TLV320AIC3X",
	187	.stream_name = "AIC3X",
	188	.cpu_dai = &davinci_mcasp_dai[DAVINCI_MCASP_I2S_DAI],
	189	.codec_dai = &aic3x_dai,
	190	.init = evm_aic3x_init,
	191	.ops = &evm_ops,
	192	};
04f80f5c	193
9b95b166	194	/* davinci dm6446, dm355 or dm365 evm audio machine driver */
87506549	195	static struct snd_soc_card snd_soc_card_evm = {
310355c1	196	.name = "DaVinci EVM",
87689d56	197	.platform = &davinci_soc_platform,
310355c1 VB	198	.dai_link = &evm_dai,
	199	.num_links = 1,
	200	};
	201
04f80f5c C	202	/* davinci dm6467 evm audio machine driver */
	203	static struct snd_soc_card dm6467_snd_soc_card_evm = {
	204	.name = "DaVinci DM6467 EVM",
	205	.platform = &davinci_soc_platform,
	206	.dai_link = dm6467_evm_dai,
	207	.num_links = ARRAY_SIZE(dm6467_evm_dai),
	208	};
	209
7ae5945f	210	static struct snd_soc_card da830_snd_soc_card = {
30230f4c C	211	.name = "DA830/OMAP-L137 EVM",
	212	.dai_link = &da8xx_evm_dai,
	213	.platform = &davinci_soc_platform,
	214	.num_links = 1,
	215	};
	216
	217	static struct snd_soc_card da850_snd_soc_card = {
	218	.name = "DA850/OMAP-L138 EVM",
	219	.dai_link = &da8xx_evm_dai,
7ae5945f C	220	.platform = &davinci_soc_platform,
	221	.num_links = 1,
	222	};
	223
f4890b5c	224	static struct aic3x_setup_data aic3x_setup;
7ae5945f	225
310355c1 VB	226	/* evm audio subsystem */
310355c1 VB	227	static struct snd_soc_device evm_snd_devdata = {
87506549	228	.card = &snd_soc_card_evm,
310355c1	229	.codec_dev = &soc_codec_dev_aic3x,
f4890b5c	230	.codec_data = &aic3x_setup,
310355c1 VB	231	};
310355c1 VB	232
04f80f5c C	233	/* evm audio subsystem */
	234	static struct snd_soc_device dm6467_evm_snd_devdata = {
	235	.card = &dm6467_snd_soc_card_evm,
	236	.codec_dev = &soc_codec_dev_aic3x,
f4890b5c	237	.codec_data = &aic3x_setup,
310355c1 VB	238	};
310355c1 VB	239
7ae5945f C	240	/* evm audio subsystem */
	241	static struct snd_soc_device da830_evm_snd_devdata = {
	242	.card = &da830_snd_soc_card,
	243	.codec_dev = &soc_codec_dev_aic3x,
f4890b5c	244	.codec_data = &aic3x_setup,
30230f4c C	245	};
	246
	247	static struct snd_soc_device da850_evm_snd_devdata = {
	248	.card = &da850_snd_soc_card,
	249	.codec_dev = &soc_codec_dev_aic3x,
f4890b5c	250	.codec_data = &aic3x_setup,
7ae5945f C	251	};
7ae5945f C	252
310355c1 VB	253	static struct platform_device *evm_snd_device;
	254
	255	static int __init evm_init(void)
	256	{
04f80f5c	257	struct snd_soc_device *evm_snd_dev_data;
f492ec9f	258	int index;
310355c1 VB	259	int ret;
310355c1 VB	260
9b95b166	261	if (machine_is_davinci_evm() \|\| machine_is_davinci_dm365_evm()) {
04f80f5c	262	evm_snd_dev_data = &evm_snd_devdata;
f492ec9f DB	263	index = 0;
f492ec9f DB	264	} else if (machine_is_davinci_dm355_evm()) {
04f80f5c	265	evm_snd_dev_data = &evm_snd_devdata;
f492ec9f	266	index = 1;
04f80f5c C	267	} else if (machine_is_davinci_dm6467_evm()) {
	268	evm_snd_dev_data = &dm6467_evm_snd_devdata;
	269	index = 0;
7ae5945f C	270	} else if (machine_is_davinci_da830_evm()) {
	271	evm_snd_dev_data = &da830_evm_snd_devdata;
	272	index = 1;
30230f4c C	273	} else if (machine_is_davinci_da850_evm()) {
	274	evm_snd_dev_data = &da850_evm_snd_devdata;
	275	index = 0;
f492ec9f DB	276	} else
	277	return -EINVAL;
	278
	279	evm_snd_device = platform_device_alloc("soc-audio", index);
310355c1 VB	280	if (!evm_snd_device)
	281	return -ENOMEM;
	282
04f80f5c C	283	platform_set_drvdata(evm_snd_device, evm_snd_dev_data);
04f80f5c C	284	evm_snd_dev_data->dev = &evm_snd_device->dev;
310355c1 VB	285	ret = platform_device_add(evm_snd_device);
	286	if (ret)
	287	platform_device_put(evm_snd_device);
	288
	289	return ret;
	290	}
	291
	292	static void __exit evm_exit(void)
	293	{
	294	platform_device_unregister(evm_snd_device);
	295	}
	296
	297	module_init(evm_init);
	298	module_exit(evm_exit);
	299
	300	MODULE_AUTHOR("Vladimir Barinov");
	301	MODULE_DESCRIPTION("TI DAVINCI EVM ASoC driver");
	302	MODULE_LICENSE("GPL");