sound/soc/codecs/ad1980.c - arm/linux-arm64-legacy - Git at Google

 /*
  * ad1980.c  --  ALSA Soc AD1980 codec support
  *
  * Copyright:	Analog Device Inc.
  * Author:	Roy Huang <roy.huang@analog.com>
  * 		Cliff Cai <cliff.cai@analog.com>
  *
  *  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/init.h>
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/device.h>
 #include <sound/core.h>
 #include <sound/pcm.h>
 #include <sound/ac97_codec.h>
 #include <sound/initval.h>
 #include <sound/soc.h>
 #include <sound/soc-dapm.h>

 #include "ad1980.h"

 static unsigned int ac97_read(struct snd_soc_codec *codec,
 	unsigned int reg);
 static int ac97_write(struct snd_soc_codec *codec,
 	unsigned int reg, unsigned int val);

 /*
  * AD1980 register cache
  */
 static const u16 ad1980_reg[] = {
 	0x0090, 0x8000, 0x8000, 0x8000, /* 0 - 6  */
 	0x0000, 0x0000, 0x8008, 0x8008, /* 8 - e  */
 	0x8808, 0x8808, 0x0000, 0x8808, /* 10 - 16 */
 	0x8808, 0x0000, 0x8000, 0x0000, /* 18 - 1e */
 	0x0000, 0x0000, 0x0000, 0x0000, /* 20 - 26 */
 	0x03c7, 0x0000, 0xbb80, 0xbb80, /* 28 - 2e */
 	0xbb80, 0xbb80, 0x0000, 0x8080, /* 30 - 36 */
 	0x8080, 0x2000, 0x0000, 0x0000, /* 38 - 3e */
 	0x0000, 0x0000, 0x0000, 0x0000, /* reserved */
 	0x0000, 0x0000, 0x0000, 0x0000, /* reserved */
 	0x0000, 0x0000, 0x0000, 0x0000, /* reserved */
 	0x0000, 0x0000, 0x0000, 0x0000, /* reserved */
 	0x8080, 0x0000, 0x0000, 0x0000, /* 60 - 66 */
 	0x0000, 0x0000, 0x0000, 0x0000, /* reserved */
 	0x0000, 0x0000, 0x1001, 0x0000, /* 70 - 76 */
 	0x0000, 0x0000, 0x4144, 0x5370  /* 78 - 7e */
 };

 static const char *ad1980_rec_sel[] = {"Mic", "CD", "NC", "AUX", "Line",
 		"Stereo Mix", "Mono Mix", "Phone"};

 static const struct soc_enum ad1980_cap_src =
 	SOC_ENUM_DOUBLE(AC97_REC_SEL, 8, 0, 7, ad1980_rec_sel);

 static const struct snd_kcontrol_new ad1980_snd_ac97_controls[] = {
 SOC_DOUBLE("Master Playback Volume", AC97_MASTER, 8, 0, 31, 1),
 SOC_SINGLE("Master Playback Switch", AC97_MASTER, 15, 1, 1),

 SOC_DOUBLE("Headphone Playback Volume", AC97_HEADPHONE, 8, 0, 31, 1),
 SOC_SINGLE("Headphone Playback Switch", AC97_HEADPHONE, 15, 1, 1),

 SOC_DOUBLE("PCM Playback Volume", AC97_PCM, 8, 0, 31, 1),
 SOC_SINGLE("PCM Playback Switch", AC97_PCM, 15, 1, 1),

 SOC_DOUBLE("PCM Capture Volume", AC97_REC_GAIN, 8, 0, 31, 0),
 SOC_SINGLE("PCM Capture Switch", AC97_REC_GAIN, 15, 1, 1),

 SOC_SINGLE("Mono Playback Volume", AC97_MASTER_MONO, 0, 31, 1),
 SOC_SINGLE("Mono Playback Switch", AC97_MASTER_MONO, 15, 1, 1),

 SOC_SINGLE("Phone Capture Volume", AC97_PHONE, 0, 31, 1),
 SOC_SINGLE("Phone Capture Switch", AC97_PHONE, 15, 1, 1),

 SOC_SINGLE("Mic Volume", AC97_MIC, 0, 31, 1),
 SOC_SINGLE("Mic Switch", AC97_MIC, 15, 1, 1),

 SOC_SINGLE("Stereo Mic Switch", AC97_AD_MISC, 6, 1, 0),
 SOC_DOUBLE("Line HP Swap Switch", AC97_AD_MISC, 10, 5, 1, 0),

 SOC_DOUBLE("Surround Playback Volume", AC97_SURROUND_MASTER, 8, 0, 31, 1),
 SOC_DOUBLE("Surround Playback Switch", AC97_SURROUND_MASTER, 15, 7, 1, 1),

 SOC_DOUBLE("Center/LFE Playback Volume", AC97_CENTER_LFE_MASTER, 8, 0, 31, 1),
 SOC_DOUBLE("Center/LFE Playback Switch", AC97_CENTER_LFE_MASTER, 15, 7, 1, 1),

 SOC_ENUM("Capture Source", ad1980_cap_src),

 SOC_SINGLE("Mic Boost Switch", AC97_MIC, 6, 1, 0),
 };

 static unsigned int ac97_read(struct snd_soc_codec *codec,
 	unsigned int reg)
 {
 	u16 *cache = codec->reg_cache;

 	switch (reg) {
 	case AC97_RESET:
 	case AC97_INT_PAGING:
 	case AC97_POWERDOWN:
 	case AC97_EXTENDED_STATUS:
 	case AC97_VENDOR_ID1:
 	case AC97_VENDOR_ID2:
 		return soc_ac97_ops.read(codec->ac97, reg);
 	default:
 		reg = reg >> 1;

 		if (reg >= ARRAY_SIZE(ad1980_reg))
 			return -EINVAL;

 		return cache[reg];
 	}
 }

 static int ac97_write(struct snd_soc_codec *codec, unsigned int reg,
 	unsigned int val)
 {
 	u16 *cache = codec->reg_cache;

 	soc_ac97_ops.write(codec->ac97, reg, val);
 	reg = reg >> 1;
 	if (reg < ARRAY_SIZE(ad1980_reg))
 		cache[reg] = val;

 	return 0;
 }

 struct snd_soc_dai ad1980_dai = {
 	.name = "AC97",
 	.ac97_control = 1,
 	.playback = {
 		.stream_name = "Playback",
 		.channels_min = 2,
 		.channels_max = 6,
 		.rates = SNDRV_PCM_RATE_48000,
 		.formats = SND_SOC_STD_AC97_FMTS, },
 	.capture = {
 		.stream_name = "Capture",
 		.channels_min = 2,
 		.channels_max = 2,
 		.rates = SNDRV_PCM_RATE_48000,
 		.formats = SND_SOC_STD_AC97_FMTS, },
 };
 EXPORT_SYMBOL_GPL(ad1980_dai);

 static int ad1980_reset(struct snd_soc_codec *codec, int try_warm)
 {
 	u16 retry_cnt = 0;

 retry:
 	if (try_warm && soc_ac97_ops.warm_reset) {
 		soc_ac97_ops.warm_reset(codec->ac97);
 		if (ac97_read(codec, AC97_RESET) == 0x0090)
 			return 1;
 	}

 	soc_ac97_ops.reset(codec->ac97);
 	/* Set bit 16slot in register 74h, then every slot will has only 16
 	 * bits. This command is sent out in 20bit mode, in which case the
 	 * first nibble of data is eaten by the addr. (Tag is always 16 bit)*/
 	ac97_write(codec, AC97_AD_SERIAL_CFG, 0x9900);

 	if (ac97_read(codec, AC97_RESET)  != 0x0090)
 		goto err;
 	return 0;

 err:
 	while (retry_cnt++ < 10)
 		goto retry;

 	printk(KERN_ERR "AD1980 AC97 reset failed\n");
 	return -EIO;
 }

 static int ad1980_soc_probe(struct platform_device *pdev)
 {
 	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
 	struct snd_soc_codec *codec;
 	int ret = 0;
 	u16 vendor_id2;
 	u16 ext_status;

 	printk(KERN_INFO "AD1980 SoC Audio Codec\n");

 	socdev->card->codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL);
 	if (socdev->card->codec == NULL)
 		return -ENOMEM;
 	codec = socdev->card->codec;
 	mutex_init(&codec->mutex);

 	codec->reg_cache =
 		kzalloc(sizeof(u16) * ARRAY_SIZE(ad1980_reg), GFP_KERNEL);
 	if (codec->reg_cache == NULL) {
 		ret = -ENOMEM;
 		goto cache_err;
 	}
 	memcpy(codec->reg_cache, ad1980_reg, sizeof(u16) * \
 			ARRAY_SIZE(ad1980_reg));
 	codec->reg_cache_size = sizeof(u16) * ARRAY_SIZE(ad1980_reg);
 	codec->reg_cache_step = 2;
 	codec->name = "AD1980";
 	codec->owner = THIS_MODULE;
 	codec->dai = &ad1980_dai;
 	codec->num_dai = 1;
 	codec->write = ac97_write;
 	codec->read = ac97_read;
 	INIT_LIST_HEAD(&codec->dapm_widgets);
 	INIT_LIST_HEAD(&codec->dapm_paths);

 	ret = snd_soc_new_ac97_codec(codec, &soc_ac97_ops, 0);
 	if (ret < 0) {
 		printk(KERN_ERR "ad1980: failed to register AC97 codec\n");
 		goto codec_err;
 	}

 	/* register pcms */
 	ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
 	if (ret < 0)
 		goto pcm_err;


 	ret = ad1980_reset(codec, 0);
 	if (ret < 0) {
 		printk(KERN_ERR "Failed to reset AD1980: AC97 link error\n");
 		goto reset_err;
 	}

 	/* Read out vendor ID to make sure it is ad1980 */
 	if (ac97_read(codec, AC97_VENDOR_ID1) != 0x4144)
 		goto reset_err;

 	vendor_id2 = ac97_read(codec, AC97_VENDOR_ID2);

 	if (vendor_id2 != 0x5370) {
 		if (vendor_id2 != 0x5374)
 			goto reset_err;
 		else
 			printk(KERN_WARNING "ad1980: "
 				"Found AD1981 - only 2/2 IN/OUT Channels "
 				"supported\n");
 	}

 	/* unmute captures and playbacks volume */
 	ac97_write(codec, AC97_MASTER, 0x0000);
 	ac97_write(codec, AC97_PCM, 0x0000);
 	ac97_write(codec, AC97_REC_GAIN, 0x0000);
 	ac97_write(codec, AC97_CENTER_LFE_MASTER, 0x0000);
 	ac97_write(codec, AC97_SURROUND_MASTER, 0x0000);

 	/*power on LFE/CENTER/Surround DACs*/
 	ext_status = ac97_read(codec, AC97_EXTENDED_STATUS);
 	ac97_write(codec, AC97_EXTENDED_STATUS, ext_status&~0x3800);

 	snd_soc_add_controls(codec, ad1980_snd_ac97_controls,
 				ARRAY_SIZE(ad1980_snd_ac97_controls));
 	ret = snd_soc_init_card(socdev);
 	if (ret < 0) {
 		printk(KERN_ERR "ad1980: failed to register card\n");
 		goto reset_err;
 	}

 	return 0;

 reset_err:
 	snd_soc_free_pcms(socdev);

 pcm_err:
 	snd_soc_free_ac97_codec(codec);

 codec_err:
 	kfree(codec->reg_cache);

 cache_err:
 	kfree(socdev->card->codec);
 	socdev->card->codec = NULL;
 	return ret;
 }

 static int ad1980_soc_remove(struct platform_device *pdev)
 {
 	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
 	struct snd_soc_codec *codec = socdev->card->codec;

 	if (codec == NULL)
 		return 0;

 	snd_soc_dapm_free(socdev);
 	snd_soc_free_pcms(socdev);
 	snd_soc_free_ac97_codec(codec);
 	kfree(codec->reg_cache);
 	kfree(codec);
 	return 0;
 }

 struct snd_soc_codec_device soc_codec_dev_ad1980 = {
 	.probe = 	ad1980_soc_probe,
 	.remove = 	ad1980_soc_remove,
 };
 EXPORT_SYMBOL_GPL(soc_codec_dev_ad1980);

 MODULE_DESCRIPTION("ASoC ad1980 driver");
 MODULE_AUTHOR("Roy Huang, Cliff Cai");
 MODULE_LICENSE("GPL");
	/*
	* ad1980.c -- ALSA Soc AD1980 codec support
	*
	* Copyright: Analog Device Inc.
	* Author: Roy Huang <roy.huang@analog.com>
	* Cliff Cai <cliff.cai@analog.com>
	*
	* 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/init.h>
	#include <linux/module.h>
	#include <linux/kernel.h>
	#include <linux/device.h>
	#include <sound/core.h>
	#include <sound/pcm.h>
	#include <sound/ac97_codec.h>
	#include <sound/initval.h>
	#include <sound/soc.h>
	#include <sound/soc-dapm.h>

	#include "ad1980.h"

	static unsigned int ac97_read(struct snd_soc_codec *codec,
	unsigned int reg);
	static int ac97_write(struct snd_soc_codec *codec,
	unsigned int reg, unsigned int val);

	/*
	* AD1980 register cache
	*/
	static const u16 ad1980_reg[] = {
	0x0090, 0x8000, 0x8000, 0x8000, /* 0 - 6 */
	0x0000, 0x0000, 0x8008, 0x8008, /* 8 - e */
	0x8808, 0x8808, 0x0000, 0x8808, /* 10 - 16 */
	0x8808, 0x0000, 0x8000, 0x0000, /* 18 - 1e */
	0x0000, 0x0000, 0x0000, 0x0000, /* 20 - 26 */
	0x03c7, 0x0000, 0xbb80, 0xbb80, /* 28 - 2e */
	0xbb80, 0xbb80, 0x0000, 0x8080, /* 30 - 36 */
	0x8080, 0x2000, 0x0000, 0x0000, /* 38 - 3e */
	0x0000, 0x0000, 0x0000, 0x0000, /* reserved */
	0x0000, 0x0000, 0x0000, 0x0000, /* reserved */
	0x0000, 0x0000, 0x0000, 0x0000, /* reserved */
	0x0000, 0x0000, 0x0000, 0x0000, /* reserved */
	0x8080, 0x0000, 0x0000, 0x0000, /* 60 - 66 */
	0x0000, 0x0000, 0x0000, 0x0000, /* reserved */
	0x0000, 0x0000, 0x1001, 0x0000, /* 70 - 76 */
	0x0000, 0x0000, 0x4144, 0x5370 /* 78 - 7e */
	};

	static const char *ad1980_rec_sel[] = {"Mic", "CD", "NC", "AUX", "Line",
	"Stereo Mix", "Mono Mix", "Phone"};

	static const struct soc_enum ad1980_cap_src =
	SOC_ENUM_DOUBLE(AC97_REC_SEL, 8, 0, 7, ad1980_rec_sel);

	static const struct snd_kcontrol_new ad1980_snd_ac97_controls[] = {
	SOC_DOUBLE("Master Playback Volume", AC97_MASTER, 8, 0, 31, 1),
	SOC_SINGLE("Master Playback Switch", AC97_MASTER, 15, 1, 1),

	SOC_DOUBLE("Headphone Playback Volume", AC97_HEADPHONE, 8, 0, 31, 1),
	SOC_SINGLE("Headphone Playback Switch", AC97_HEADPHONE, 15, 1, 1),

	SOC_DOUBLE("PCM Playback Volume", AC97_PCM, 8, 0, 31, 1),
	SOC_SINGLE("PCM Playback Switch", AC97_PCM, 15, 1, 1),

	SOC_DOUBLE("PCM Capture Volume", AC97_REC_GAIN, 8, 0, 31, 0),
	SOC_SINGLE("PCM Capture Switch", AC97_REC_GAIN, 15, 1, 1),

	SOC_SINGLE("Mono Playback Volume", AC97_MASTER_MONO, 0, 31, 1),
	SOC_SINGLE("Mono Playback Switch", AC97_MASTER_MONO, 15, 1, 1),

	SOC_SINGLE("Phone Capture Volume", AC97_PHONE, 0, 31, 1),
	SOC_SINGLE("Phone Capture Switch", AC97_PHONE, 15, 1, 1),

	SOC_SINGLE("Mic Volume", AC97_MIC, 0, 31, 1),
	SOC_SINGLE("Mic Switch", AC97_MIC, 15, 1, 1),

	SOC_SINGLE("Stereo Mic Switch", AC97_AD_MISC, 6, 1, 0),
	SOC_DOUBLE("Line HP Swap Switch", AC97_AD_MISC, 10, 5, 1, 0),

	SOC_DOUBLE("Surround Playback Volume", AC97_SURROUND_MASTER, 8, 0, 31, 1),
	SOC_DOUBLE("Surround Playback Switch", AC97_SURROUND_MASTER, 15, 7, 1, 1),

	SOC_DOUBLE("Center/LFE Playback Volume", AC97_CENTER_LFE_MASTER, 8, 0, 31, 1),
	SOC_DOUBLE("Center/LFE Playback Switch", AC97_CENTER_LFE_MASTER, 15, 7, 1, 1),

	SOC_ENUM("Capture Source", ad1980_cap_src),

	SOC_SINGLE("Mic Boost Switch", AC97_MIC, 6, 1, 0),
	};

	static unsigned int ac97_read(struct snd_soc_codec *codec,
	unsigned int reg)
	{
	u16 *cache = codec->reg_cache;

	switch (reg) {
	case AC97_RESET:
	case AC97_INT_PAGING:
	case AC97_POWERDOWN:
	case AC97_EXTENDED_STATUS:
	case AC97_VENDOR_ID1:
	case AC97_VENDOR_ID2:
	return soc_ac97_ops.read(codec->ac97, reg);
	default:
	reg = reg >> 1;

	if (reg >= ARRAY_SIZE(ad1980_reg))
	return -EINVAL;

	return cache[reg];
	}
	}

	static int ac97_write(struct snd_soc_codec *codec, unsigned int reg,
	unsigned int val)
	{
	u16 *cache = codec->reg_cache;

	soc_ac97_ops.write(codec->ac97, reg, val);
	reg = reg >> 1;
	if (reg < ARRAY_SIZE(ad1980_reg))
	cache[reg] = val;

	return 0;
	}

	struct snd_soc_dai ad1980_dai = {
	.name = "AC97",
	.ac97_control = 1,
	.playback = {
	.stream_name = "Playback",
	.channels_min = 2,
	.channels_max = 6,
	.rates = SNDRV_PCM_RATE_48000,
	.formats = SND_SOC_STD_AC97_FMTS, },
	.capture = {
	.stream_name = "Capture",
	.channels_min = 2,
	.channels_max = 2,
	.rates = SNDRV_PCM_RATE_48000,
	.formats = SND_SOC_STD_AC97_FMTS, },
	};
	EXPORT_SYMBOL_GPL(ad1980_dai);

	static int ad1980_reset(struct snd_soc_codec *codec, int try_warm)
	{
	u16 retry_cnt = 0;

	retry:
	if (try_warm && soc_ac97_ops.warm_reset) {
	soc_ac97_ops.warm_reset(codec->ac97);
	if (ac97_read(codec, AC97_RESET) == 0x0090)
	return 1;
	}

	soc_ac97_ops.reset(codec->ac97);
	/* Set bit 16slot in register 74h, then every slot will has only 16
	* bits. This command is sent out in 20bit mode, in which case the
	* first nibble of data is eaten by the addr. (Tag is always 16 bit)*/
	ac97_write(codec, AC97_AD_SERIAL_CFG, 0x9900);

	if (ac97_read(codec, AC97_RESET) != 0x0090)
	goto err;
	return 0;

	err:
	while (retry_cnt++ < 10)
	goto retry;

	printk(KERN_ERR "AD1980 AC97 reset failed\n");
	return -EIO;
	}

	static int ad1980_soc_probe(struct platform_device *pdev)
	{
	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
	struct snd_soc_codec *codec;
	int ret = 0;
	u16 vendor_id2;
	u16 ext_status;

	printk(KERN_INFO "AD1980 SoC Audio Codec\n");

	socdev->card->codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL);
	if (socdev->card->codec == NULL)
	return -ENOMEM;
	codec = socdev->card->codec;
	mutex_init(&codec->mutex);

	codec->reg_cache =
	kzalloc(sizeof(u16) * ARRAY_SIZE(ad1980_reg), GFP_KERNEL);
	if (codec->reg_cache == NULL) {
	ret = -ENOMEM;
	goto cache_err;
	}
	memcpy(codec->reg_cache, ad1980_reg, sizeof(u16) * \
	ARRAY_SIZE(ad1980_reg));
	codec->reg_cache_size = sizeof(u16) * ARRAY_SIZE(ad1980_reg);
	codec->reg_cache_step = 2;
	codec->name = "AD1980";
	codec->owner = THIS_MODULE;
	codec->dai = &ad1980_dai;
	codec->num_dai = 1;
	codec->write = ac97_write;
	codec->read = ac97_read;
	INIT_LIST_HEAD(&codec->dapm_widgets);
	INIT_LIST_HEAD(&codec->dapm_paths);

	ret = snd_soc_new_ac97_codec(codec, &soc_ac97_ops, 0);
	if (ret < 0) {
	printk(KERN_ERR "ad1980: failed to register AC97 codec\n");
	goto codec_err;
	}

	/* register pcms */
	ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
	if (ret < 0)
	goto pcm_err;


	ret = ad1980_reset(codec, 0);
	if (ret < 0) {
	printk(KERN_ERR "Failed to reset AD1980: AC97 link error\n");
	goto reset_err;
	}

	/* Read out vendor ID to make sure it is ad1980 */
	if (ac97_read(codec, AC97_VENDOR_ID1) != 0x4144)
	goto reset_err;

	vendor_id2 = ac97_read(codec, AC97_VENDOR_ID2);

	if (vendor_id2 != 0x5370) {
	if (vendor_id2 != 0x5374)
	goto reset_err;
	else
	printk(KERN_WARNING "ad1980: "
	"Found AD1981 - only 2/2 IN/OUT Channels "
	"supported\n");
	}

	/* unmute captures and playbacks volume */
	ac97_write(codec, AC97_MASTER, 0x0000);
	ac97_write(codec, AC97_PCM, 0x0000);
	ac97_write(codec, AC97_REC_GAIN, 0x0000);
	ac97_write(codec, AC97_CENTER_LFE_MASTER, 0x0000);
	ac97_write(codec, AC97_SURROUND_MASTER, 0x0000);

	/power on LFE/CENTER/Surround DACs/
	ext_status = ac97_read(codec, AC97_EXTENDED_STATUS);
	ac97_write(codec, AC97_EXTENDED_STATUS, ext_status&~0x3800);

	snd_soc_add_controls(codec, ad1980_snd_ac97_controls,
	ARRAY_SIZE(ad1980_snd_ac97_controls));
	ret = snd_soc_init_card(socdev);
	if (ret < 0) {
	printk(KERN_ERR "ad1980: failed to register card\n");
	goto reset_err;
	}

	return 0;

	reset_err:
	snd_soc_free_pcms(socdev);

	pcm_err:
	snd_soc_free_ac97_codec(codec);

	codec_err:
	kfree(codec->reg_cache);

	cache_err:
	kfree(socdev->card->codec);
	socdev->card->codec = NULL;
	return ret;
	}

	static int ad1980_soc_remove(struct platform_device *pdev)
	{
	struct snd_soc_device *socdev = platform_get_drvdata(pdev);
	struct snd_soc_codec *codec = socdev->card->codec;

	if (codec == NULL)
	return 0;

	snd_soc_dapm_free(socdev);
	snd_soc_free_pcms(socdev);
	snd_soc_free_ac97_codec(codec);
	kfree(codec->reg_cache);
	kfree(codec);
	return 0;
	}

	struct snd_soc_codec_device soc_codec_dev_ad1980 = {
	.probe = ad1980_soc_probe,
	.remove = ad1980_soc_remove,
	};
	EXPORT_SYMBOL_GPL(soc_codec_dev_ad1980);

	MODULE_DESCRIPTION("ASoC ad1980 driver");
	MODULE_AUTHOR("Roy Huang, Cliff Cai");
	MODULE_LICENSE("GPL");