sound/soc/samsung/neo1973_wm8753.c - kernel/mindspeed - Git at Google

 /*
  * neo1973_wm8753.c  --  SoC audio for Openmoko Neo1973 and Freerunner devices
  *
  * Copyright 2007 Openmoko Inc
  * Author: Graeme Gregory <graeme@openmoko.org>
  * Copyright 2007 Wolfson Microelectronics PLC.
  * Author: Graeme Gregory
  *         graeme.gregory@wolfsonmicro.com or linux@wolfsonmicro.com
  * Copyright 2009 Wolfson Microelectronics
  *
  *  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 <linux/platform_device.h>
 #include <linux/gpio.h>

 #include <sound/soc.h>

 #include <mach/gpio-samsung.h>
 #include <asm/mach-types.h>
 #include "regs-iis.h"

 #include "../codecs/wm8753.h"
 #include "s3c24xx-i2s.h"

 static int neo1973_hifi_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->codec_dai;
 	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
 	unsigned int pll_out = 0, bclk = 0;
 	int ret = 0;
 	unsigned long iis_clkrate;

 	iis_clkrate = s3c24xx_i2s_get_clockrate();

 	switch (params_rate(params)) {
 	case 8000:
 	case 16000:
 		pll_out = 12288000;
 		break;
 	case 48000:
 		bclk = WM8753_BCLK_DIV_4;
 		pll_out = 12288000;
 		break;
 	case 96000:
 		bclk = WM8753_BCLK_DIV_2;
 		pll_out = 12288000;
 		break;
 	case 11025:
 		bclk = WM8753_BCLK_DIV_16;
 		pll_out = 11289600;
 		break;
 	case 22050:
 		bclk = WM8753_BCLK_DIV_8;
 		pll_out = 11289600;
 		break;
 	case 44100:
 		bclk = WM8753_BCLK_DIV_4;
 		pll_out = 11289600;
 		break;
 	case 88200:
 		bclk = WM8753_BCLK_DIV_2;
 		pll_out = 11289600;
 		break;
 	}

 	/* set the codec system clock for DAC and ADC */
 	ret = snd_soc_dai_set_sysclk(codec_dai, WM8753_MCLK, pll_out,
 		SND_SOC_CLOCK_IN);
 	if (ret < 0)
 		return ret;

 	/* set MCLK division for sample rate */
 	ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C24XX_DIV_MCLK,
 		S3C2410_IISMOD_32FS);
 	if (ret < 0)
 		return ret;

 	/* set codec BCLK division for sample rate */
 	ret = snd_soc_dai_set_clkdiv(codec_dai, WM8753_BCLKDIV, bclk);
 	if (ret < 0)
 		return ret;

 	/* set prescaler division for sample rate */
 	ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C24XX_DIV_PRESCALER,
 		S3C24XX_PRESCALE(4, 4));
 	if (ret < 0)
 		return ret;

 	/* codec PLL input is PCLK/4 */
 	ret = snd_soc_dai_set_pll(codec_dai, WM8753_PLL1, 0,
 		iis_clkrate / 4, pll_out);
 	if (ret < 0)
 		return ret;

 	return 0;
 }

 static int neo1973_hifi_hw_free(struct snd_pcm_substream *substream)
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_dai *codec_dai = rtd->codec_dai;

 	/* disable the PLL */
 	return snd_soc_dai_set_pll(codec_dai, WM8753_PLL1, 0, 0, 0);
 }

 /*
  * Neo1973 WM8753 HiFi DAI opserations.
  */
 static struct snd_soc_ops neo1973_hifi_ops = {
 	.hw_params = neo1973_hifi_hw_params,
 	.hw_free = neo1973_hifi_hw_free,
 };

 static int neo1973_voice_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->codec_dai;
 	unsigned int pcmdiv = 0;
 	int ret = 0;
 	unsigned long iis_clkrate;

 	iis_clkrate = s3c24xx_i2s_get_clockrate();

 	if (params_rate(params) != 8000)
 		return -EINVAL;
 	if (params_channels(params) != 1)
 		return -EINVAL;

 	pcmdiv = WM8753_PCM_DIV_6; /* 2.048 MHz */

 	/* set the codec system clock for DAC and ADC */
 	ret = snd_soc_dai_set_sysclk(codec_dai, WM8753_PCMCLK, 12288000,
 		SND_SOC_CLOCK_IN);
 	if (ret < 0)
 		return ret;

 	/* set codec PCM division for sample rate */
 	ret = snd_soc_dai_set_clkdiv(codec_dai, WM8753_PCMDIV, pcmdiv);
 	if (ret < 0)
 		return ret;

 	/* configure and enable PLL for 12.288MHz output */
 	ret = snd_soc_dai_set_pll(codec_dai, WM8753_PLL2, 0,
 		iis_clkrate / 4, 12288000);
 	if (ret < 0)
 		return ret;

 	return 0;
 }

 static int neo1973_voice_hw_free(struct snd_pcm_substream *substream)
 {
 	struct snd_soc_pcm_runtime *rtd = substream->private_data;
 	struct snd_soc_dai *codec_dai = rtd->codec_dai;

 	/* disable the PLL */
 	return snd_soc_dai_set_pll(codec_dai, WM8753_PLL2, 0, 0, 0);
 }

 static struct snd_soc_ops neo1973_voice_ops = {
 	.hw_params = neo1973_voice_hw_params,
 	.hw_free = neo1973_voice_hw_free,
 };

 static int gta02_speaker_enabled;

 static int lm4853_set_spk(struct snd_kcontrol *kcontrol,
 	struct snd_ctl_elem_value *ucontrol)
 {
 	gta02_speaker_enabled = ucontrol->value.integer.value[0];

 	gpio_set_value(S3C2410_GPJ(2), !gta02_speaker_enabled);

 	return 0;
 }

 static int lm4853_get_spk(struct snd_kcontrol *kcontrol,
 	struct snd_ctl_elem_value *ucontrol)
 {
 	ucontrol->value.integer.value[0] = gta02_speaker_enabled;
 	return 0;
 }

 static int lm4853_event(struct snd_soc_dapm_widget *w,
 			struct snd_kcontrol *k, int event)
 {
 	gpio_set_value(S3C2410_GPJ(1), SND_SOC_DAPM_EVENT_OFF(event));

 	return 0;
 }

 static const struct snd_soc_dapm_widget neo1973_wm8753_dapm_widgets[] = {
 	SND_SOC_DAPM_LINE("GSM Line Out", NULL),
 	SND_SOC_DAPM_LINE("GSM Line In", NULL),
 	SND_SOC_DAPM_MIC("Headset Mic", NULL),
 	SND_SOC_DAPM_MIC("Handset Mic", NULL),
 	SND_SOC_DAPM_SPK("Handset Spk", NULL),
 	SND_SOC_DAPM_SPK("Stereo Out", lm4853_event),
 };

 static const struct snd_soc_dapm_route neo1973_wm8753_routes[] = {
 	/* Connections to the GSM Module */
 	{"GSM Line Out", NULL, "MONO1"},
 	{"GSM Line Out", NULL, "MONO2"},
 	{"RXP", NULL, "GSM Line In"},
 	{"RXN", NULL, "GSM Line In"},

 	/* Connections to Headset */
 	{"MIC1", NULL, "Mic Bias"},
 	{"Mic Bias", NULL, "Headset Mic"},

 	/* Call Mic */
 	{"MIC2", NULL, "Mic Bias"},
 	{"MIC2N", NULL, "Mic Bias"},
 	{"Mic Bias", NULL, "Handset Mic"},

 	/* Connect the ALC pins */
 	{"ACIN", NULL, "ACOP"},

 	/* Connections to the amp */
 	{"Stereo Out", NULL, "LOUT1"},
 	{"Stereo Out", NULL, "ROUT1"},

 	/* Call Speaker */
 	{"Handset Spk", NULL, "LOUT2"},
 	{"Handset Spk", NULL, "ROUT2"},
 };

 static const struct snd_kcontrol_new neo1973_wm8753_controls[] = {
 	SOC_DAPM_PIN_SWITCH("GSM Line Out"),
 	SOC_DAPM_PIN_SWITCH("GSM Line In"),
 	SOC_DAPM_PIN_SWITCH("Headset Mic"),
 	SOC_DAPM_PIN_SWITCH("Handset Mic"),
 	SOC_DAPM_PIN_SWITCH("Handset Spk"),
 	SOC_DAPM_PIN_SWITCH("Stereo Out"),

 	SOC_SINGLE_BOOL_EXT("Amp Spk Switch", 0,
 		lm4853_get_spk,
 		lm4853_set_spk),
 };

 static int neo1973_wm8753_init(struct snd_soc_pcm_runtime *rtd)
 {
 	struct snd_soc_card *card = rtd->card;

 	/* set endpoints to default off mode */
 	snd_soc_dapm_disable_pin(&card->dapm, "GSM Line Out");
 	snd_soc_dapm_disable_pin(&card->dapm, "GSM Line In");
 	snd_soc_dapm_disable_pin(&card->dapm, "Headset Mic");
 	snd_soc_dapm_disable_pin(&card->dapm, "Handset Mic");
 	snd_soc_dapm_disable_pin(&card->dapm, "Stereo Out");
 	snd_soc_dapm_disable_pin(&card->dapm, "Handset Spk");

 	/* allow audio paths from the GSM modem to run during suspend */
 	snd_soc_dapm_ignore_suspend(&card->dapm, "GSM Line Out");
 	snd_soc_dapm_ignore_suspend(&card->dapm, "GSM Line In");
 	snd_soc_dapm_ignore_suspend(&card->dapm, "Headset Mic");
 	snd_soc_dapm_ignore_suspend(&card->dapm, "Handset Mic");
 	snd_soc_dapm_ignore_suspend(&card->dapm, "Stereo Out");
 	snd_soc_dapm_ignore_suspend(&card->dapm, "Handset Spk");

 	return 0;
 }

 static struct snd_soc_dai_link neo1973_dai[] = {
 { /* Hifi Playback - for similatious use with voice below */
 	.name = "WM8753",
 	.stream_name = "WM8753 HiFi",
 	.platform_name = "s3c24xx-iis",
 	.cpu_dai_name = "s3c24xx-iis",
 	.codec_dai_name = "wm8753-hifi",
 	.codec_name = "wm8753.0-001a",
 	.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
 		   SND_SOC_DAIFMT_CBM_CFM,
 	.init = neo1973_wm8753_init,
 	.ops = &neo1973_hifi_ops,
 },
 { /* Voice via BT */
 	.name = "Bluetooth",
 	.stream_name = "Voice",
 	.cpu_dai_name = "bt-sco-pcm",
 	.codec_dai_name = "wm8753-voice",
 	.codec_name = "wm8753.0-001a",
 	.dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_NB_NF |
 		   SND_SOC_DAIFMT_CBS_CFS,
 	.ops = &neo1973_voice_ops,
 },
 };

 static struct snd_soc_aux_dev neo1973_aux_devs[] = {
 	{
 		.name = "dfbmcs320",
 		.codec_name = "dfbmcs320.0",
 	},
 };

 static struct snd_soc_codec_conf neo1973_codec_conf[] = {
 	{
 		.dev_name = "lm4857.0-007c",
 		.name_prefix = "Amp",
 	},
 };

 static const struct gpio neo1973_gta02_gpios[] = {
 	{ S3C2410_GPJ(2), GPIOF_OUT_INIT_HIGH, "GTA02_HP_IN" },
 	{ S3C2410_GPJ(1), GPIOF_OUT_INIT_HIGH, "GTA02_AMP_SHUT" },
 };

 static struct snd_soc_card neo1973 = {
 	.name = "neo1973",
 	.owner = THIS_MODULE,
 	.dai_link = neo1973_dai,
 	.num_links = ARRAY_SIZE(neo1973_dai),
 	.aux_dev = neo1973_aux_devs,
 	.num_aux_devs = ARRAY_SIZE(neo1973_aux_devs),
 	.codec_conf = neo1973_codec_conf,
 	.num_configs = ARRAY_SIZE(neo1973_codec_conf),

 	.controls = neo1973_wm8753_controls,
 	.num_controls = ARRAY_SIZE(neo1973_wm8753_controls),
 	.dapm_widgets = neo1973_wm8753_dapm_widgets,
 	.num_dapm_widgets = ARRAY_SIZE(neo1973_wm8753_dapm_widgets),
 	.dapm_routes = neo1973_wm8753_routes,
 	.num_dapm_routes = ARRAY_SIZE(neo1973_wm8753_routes),
 	.fully_routed = true,
 };

 static struct platform_device *neo1973_snd_device;

 static int __init neo1973_init(void)
 {
 	int ret;

 	if (!machine_is_neo1973_gta02())
 		return -ENODEV;

 	if (machine_is_neo1973_gta02()) {
 		neo1973.name = "neo1973gta02";
 		neo1973.num_aux_devs = 1;

 		ret = gpio_request_array(neo1973_gta02_gpios,
 				ARRAY_SIZE(neo1973_gta02_gpios));
 		if (ret)
 			return ret;
 	}

 	neo1973_snd_device = platform_device_alloc("soc-audio", -1);
 	if (!neo1973_snd_device) {
 		ret = -ENOMEM;
 		goto err_gpio_free;
 	}

 	platform_set_drvdata(neo1973_snd_device, &neo1973);
 	ret = platform_device_add(neo1973_snd_device);

 	if (ret)
 		goto err_put_device;

 	return 0;

 err_put_device:
 	platform_device_put(neo1973_snd_device);
 err_gpio_free:
 	if (machine_is_neo1973_gta02()) {
 		gpio_free_array(neo1973_gta02_gpios,
 				ARRAY_SIZE(neo1973_gta02_gpios));
 	}
 	return ret;
 }
 module_init(neo1973_init);

 static void __exit neo1973_exit(void)
 {
 	platform_device_unregister(neo1973_snd_device);

 	if (machine_is_neo1973_gta02()) {
 		gpio_free_array(neo1973_gta02_gpios,
 				ARRAY_SIZE(neo1973_gta02_gpios));
 	}
 }
 module_exit(neo1973_exit);

 /* Module information */
 MODULE_AUTHOR("Graeme Gregory, graeme@openmoko.org, www.openmoko.org");
 MODULE_DESCRIPTION("ALSA SoC WM8753 Neo1973 and Frerunner");
 MODULE_LICENSE("GPL");
	/*
	* neo1973_wm8753.c -- SoC audio for Openmoko Neo1973 and Freerunner devices
	*
	* Copyright 2007 Openmoko Inc
	* Author: Graeme Gregory <graeme@openmoko.org>
	* Copyright 2007 Wolfson Microelectronics PLC.
	* Author: Graeme Gregory
	* graeme.gregory@wolfsonmicro.com or linux@wolfsonmicro.com
	* Copyright 2009 Wolfson Microelectronics
	*
	* 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 <linux/platform_device.h>
	#include <linux/gpio.h>

	#include <sound/soc.h>

	#include <mach/gpio-samsung.h>
	#include <asm/mach-types.h>
	#include "regs-iis.h"

	#include "../codecs/wm8753.h"
	#include "s3c24xx-i2s.h"

	static int neo1973_hifi_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->codec_dai;
	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
	unsigned int pll_out = 0, bclk = 0;
	int ret = 0;
	unsigned long iis_clkrate;

	iis_clkrate = s3c24xx_i2s_get_clockrate();

	switch (params_rate(params)) {
	case 8000:
	case 16000:
	pll_out = 12288000;
	break;
	case 48000:
	bclk = WM8753_BCLK_DIV_4;
	pll_out = 12288000;
	break;
	case 96000:
	bclk = WM8753_BCLK_DIV_2;
	pll_out = 12288000;
	break;
	case 11025:
	bclk = WM8753_BCLK_DIV_16;
	pll_out = 11289600;
	break;
	case 22050:
	bclk = WM8753_BCLK_DIV_8;
	pll_out = 11289600;
	break;
	case 44100:
	bclk = WM8753_BCLK_DIV_4;
	pll_out = 11289600;
	break;
	case 88200:
	bclk = WM8753_BCLK_DIV_2;
	pll_out = 11289600;
	break;
	}

	/* set the codec system clock for DAC and ADC */
	ret = snd_soc_dai_set_sysclk(codec_dai, WM8753_MCLK, pll_out,
	SND_SOC_CLOCK_IN);
	if (ret < 0)
	return ret;

	/* set MCLK division for sample rate */
	ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C24XX_DIV_MCLK,
	S3C2410_IISMOD_32FS);
	if (ret < 0)
	return ret;

	/* set codec BCLK division for sample rate */
	ret = snd_soc_dai_set_clkdiv(codec_dai, WM8753_BCLKDIV, bclk);
	if (ret < 0)
	return ret;

	/* set prescaler division for sample rate */
	ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C24XX_DIV_PRESCALER,
	S3C24XX_PRESCALE(4, 4));
	if (ret < 0)
	return ret;

	/* codec PLL input is PCLK/4 */
	ret = snd_soc_dai_set_pll(codec_dai, WM8753_PLL1, 0,
	iis_clkrate / 4, pll_out);
	if (ret < 0)
	return ret;

	return 0;
	}

	static int neo1973_hifi_hw_free(struct snd_pcm_substream *substream)
	{
	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	struct snd_soc_dai *codec_dai = rtd->codec_dai;

	/* disable the PLL */
	return snd_soc_dai_set_pll(codec_dai, WM8753_PLL1, 0, 0, 0);
	}

	/*
	* Neo1973 WM8753 HiFi DAI opserations.
	*/
	static struct snd_soc_ops neo1973_hifi_ops = {
	.hw_params = neo1973_hifi_hw_params,
	.hw_free = neo1973_hifi_hw_free,
	};

	static int neo1973_voice_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->codec_dai;
	unsigned int pcmdiv = 0;
	int ret = 0;
	unsigned long iis_clkrate;

	iis_clkrate = s3c24xx_i2s_get_clockrate();

	if (params_rate(params) != 8000)
	return -EINVAL;
	if (params_channels(params) != 1)
	return -EINVAL;

	pcmdiv = WM8753_PCM_DIV_6; /* 2.048 MHz */

	/* set the codec system clock for DAC and ADC */
	ret = snd_soc_dai_set_sysclk(codec_dai, WM8753_PCMCLK, 12288000,
	SND_SOC_CLOCK_IN);
	if (ret < 0)
	return ret;

	/* set codec PCM division for sample rate */
	ret = snd_soc_dai_set_clkdiv(codec_dai, WM8753_PCMDIV, pcmdiv);
	if (ret < 0)
	return ret;

	/* configure and enable PLL for 12.288MHz output */
	ret = snd_soc_dai_set_pll(codec_dai, WM8753_PLL2, 0,
	iis_clkrate / 4, 12288000);
	if (ret < 0)
	return ret;

	return 0;
	}

	static int neo1973_voice_hw_free(struct snd_pcm_substream *substream)
	{
	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	struct snd_soc_dai *codec_dai = rtd->codec_dai;

	/* disable the PLL */
	return snd_soc_dai_set_pll(codec_dai, WM8753_PLL2, 0, 0, 0);
	}

	static struct snd_soc_ops neo1973_voice_ops = {
	.hw_params = neo1973_voice_hw_params,
	.hw_free = neo1973_voice_hw_free,
	};

	static int gta02_speaker_enabled;

	static int lm4853_set_spk(struct snd_kcontrol *kcontrol,
	struct snd_ctl_elem_value *ucontrol)
	{
	gta02_speaker_enabled = ucontrol->value.integer.value[0];

	gpio_set_value(S3C2410_GPJ(2), !gta02_speaker_enabled);

	return 0;
	}

	static int lm4853_get_spk(struct snd_kcontrol *kcontrol,
	struct snd_ctl_elem_value *ucontrol)
	{
	ucontrol->value.integer.value[0] = gta02_speaker_enabled;
	return 0;
	}

	static int lm4853_event(struct snd_soc_dapm_widget *w,
	struct snd_kcontrol *k, int event)
	{
	gpio_set_value(S3C2410_GPJ(1), SND_SOC_DAPM_EVENT_OFF(event));

	return 0;
	}

	static const struct snd_soc_dapm_widget neo1973_wm8753_dapm_widgets[] = {
	SND_SOC_DAPM_LINE("GSM Line Out", NULL),
	SND_SOC_DAPM_LINE("GSM Line In", NULL),
	SND_SOC_DAPM_MIC("Headset Mic", NULL),
	SND_SOC_DAPM_MIC("Handset Mic", NULL),
	SND_SOC_DAPM_SPK("Handset Spk", NULL),
	SND_SOC_DAPM_SPK("Stereo Out", lm4853_event),
	};

	static const struct snd_soc_dapm_route neo1973_wm8753_routes[] = {
	/* Connections to the GSM Module */
	{"GSM Line Out", NULL, "MONO1"},
	{"GSM Line Out", NULL, "MONO2"},
	{"RXP", NULL, "GSM Line In"},
	{"RXN", NULL, "GSM Line In"},

	/* Connections to Headset */
	{"MIC1", NULL, "Mic Bias"},
	{"Mic Bias", NULL, "Headset Mic"},

	/* Call Mic */
	{"MIC2", NULL, "Mic Bias"},
	{"MIC2N", NULL, "Mic Bias"},
	{"Mic Bias", NULL, "Handset Mic"},

	/* Connect the ALC pins */
	{"ACIN", NULL, "ACOP"},

	/* Connections to the amp */
	{"Stereo Out", NULL, "LOUT1"},
	{"Stereo Out", NULL, "ROUT1"},

	/* Call Speaker */
	{"Handset Spk", NULL, "LOUT2"},
	{"Handset Spk", NULL, "ROUT2"},
	};

	static const struct snd_kcontrol_new neo1973_wm8753_controls[] = {
	SOC_DAPM_PIN_SWITCH("GSM Line Out"),
	SOC_DAPM_PIN_SWITCH("GSM Line In"),
	SOC_DAPM_PIN_SWITCH("Headset Mic"),
	SOC_DAPM_PIN_SWITCH("Handset Mic"),
	SOC_DAPM_PIN_SWITCH("Handset Spk"),
	SOC_DAPM_PIN_SWITCH("Stereo Out"),

	SOC_SINGLE_BOOL_EXT("Amp Spk Switch", 0,
	lm4853_get_spk,
	lm4853_set_spk),
	};

	static int neo1973_wm8753_init(struct snd_soc_pcm_runtime *rtd)
	{
	struct snd_soc_card *card = rtd->card;

	/* set endpoints to default off mode */
	snd_soc_dapm_disable_pin(&card->dapm, "GSM Line Out");
	snd_soc_dapm_disable_pin(&card->dapm, "GSM Line In");
	snd_soc_dapm_disable_pin(&card->dapm, "Headset Mic");
	snd_soc_dapm_disable_pin(&card->dapm, "Handset Mic");
	snd_soc_dapm_disable_pin(&card->dapm, "Stereo Out");
	snd_soc_dapm_disable_pin(&card->dapm, "Handset Spk");

	/* allow audio paths from the GSM modem to run during suspend */
	snd_soc_dapm_ignore_suspend(&card->dapm, "GSM Line Out");
	snd_soc_dapm_ignore_suspend(&card->dapm, "GSM Line In");
	snd_soc_dapm_ignore_suspend(&card->dapm, "Headset Mic");
	snd_soc_dapm_ignore_suspend(&card->dapm, "Handset Mic");
	snd_soc_dapm_ignore_suspend(&card->dapm, "Stereo Out");
	snd_soc_dapm_ignore_suspend(&card->dapm, "Handset Spk");

	return 0;
	}

	static struct snd_soc_dai_link neo1973_dai[] = {
	{ /* Hifi Playback - for similatious use with voice below */
	.name = "WM8753",
	.stream_name = "WM8753 HiFi",
	.platform_name = "s3c24xx-iis",
	.cpu_dai_name = "s3c24xx-iis",
	.codec_dai_name = "wm8753-hifi",
	.codec_name = "wm8753.0-001a",
	.dai_fmt = SND_SOC_DAIFMT_I2S \| SND_SOC_DAIFMT_NB_NF \|
	SND_SOC_DAIFMT_CBM_CFM,
	.init = neo1973_wm8753_init,
	.ops = &neo1973_hifi_ops,
	},
	{ /* Voice via BT */
	.name = "Bluetooth",
	.stream_name = "Voice",
	.cpu_dai_name = "bt-sco-pcm",
	.codec_dai_name = "wm8753-voice",
	.codec_name = "wm8753.0-001a",
	.dai_fmt = SND_SOC_DAIFMT_DSP_B \| SND_SOC_DAIFMT_NB_NF \|
	SND_SOC_DAIFMT_CBS_CFS,
	.ops = &neo1973_voice_ops,
	},
	};

	static struct snd_soc_aux_dev neo1973_aux_devs[] = {
	{
	.name = "dfbmcs320",
	.codec_name = "dfbmcs320.0",
	},
	};

	static struct snd_soc_codec_conf neo1973_codec_conf[] = {
	{
	.dev_name = "lm4857.0-007c",
	.name_prefix = "Amp",
	},
	};

	static const struct gpio neo1973_gta02_gpios[] = {
	{ S3C2410_GPJ(2), GPIOF_OUT_INIT_HIGH, "GTA02_HP_IN" },
	{ S3C2410_GPJ(1), GPIOF_OUT_INIT_HIGH, "GTA02_AMP_SHUT" },
	};

	static struct snd_soc_card neo1973 = {
	.name = "neo1973",
	.owner = THIS_MODULE,
	.dai_link = neo1973_dai,
	.num_links = ARRAY_SIZE(neo1973_dai),
	.aux_dev = neo1973_aux_devs,
	.num_aux_devs = ARRAY_SIZE(neo1973_aux_devs),
	.codec_conf = neo1973_codec_conf,
	.num_configs = ARRAY_SIZE(neo1973_codec_conf),

	.controls = neo1973_wm8753_controls,
	.num_controls = ARRAY_SIZE(neo1973_wm8753_controls),
	.dapm_widgets = neo1973_wm8753_dapm_widgets,
	.num_dapm_widgets = ARRAY_SIZE(neo1973_wm8753_dapm_widgets),
	.dapm_routes = neo1973_wm8753_routes,
	.num_dapm_routes = ARRAY_SIZE(neo1973_wm8753_routes),
	.fully_routed = true,
	};

	static struct platform_device *neo1973_snd_device;

	static int __init neo1973_init(void)
	{
	int ret;

	if (!machine_is_neo1973_gta02())
	return -ENODEV;

	if (machine_is_neo1973_gta02()) {
	neo1973.name = "neo1973gta02";
	neo1973.num_aux_devs = 1;

	ret = gpio_request_array(neo1973_gta02_gpios,
	ARRAY_SIZE(neo1973_gta02_gpios));
	if (ret)
	return ret;
	}

	neo1973_snd_device = platform_device_alloc("soc-audio", -1);
	if (!neo1973_snd_device) {
	ret = -ENOMEM;
	goto err_gpio_free;
	}

	platform_set_drvdata(neo1973_snd_device, &neo1973);
	ret = platform_device_add(neo1973_snd_device);

	if (ret)
	goto err_put_device;

	return 0;

	err_put_device:
	platform_device_put(neo1973_snd_device);
	err_gpio_free:
	if (machine_is_neo1973_gta02()) {
	gpio_free_array(neo1973_gta02_gpios,
	ARRAY_SIZE(neo1973_gta02_gpios));
	}
	return ret;
	}
	module_init(neo1973_init);

	static void __exit neo1973_exit(void)
	{
	platform_device_unregister(neo1973_snd_device);

	if (machine_is_neo1973_gta02()) {
	gpio_free_array(neo1973_gta02_gpios,
	ARRAY_SIZE(neo1973_gta02_gpios));
	}
	}
	module_exit(neo1973_exit);

	/* Module information */
	MODULE_AUTHOR("Graeme Gregory, graeme@openmoko.org, www.openmoko.org");
	MODULE_DESCRIPTION("ALSA SoC WM8753 Neo1973 and Frerunner");
	MODULE_LICENSE("GPL");