[mirror_ubuntu-artful-kernel.git] / sound / soc / omap / n810.c

/*
 * n810.c  --  SoC audio for Nokia N810
 *
 * Copyright (C) 2008 Nokia Corporation
 *
 * Contact: Jarkko Nikula <jarkko.nikula@nokia.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.
 *
 * 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, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA
 *
 */

#include <linux/clk.h>
#include <linux/platform_device.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/soc.h>
#include <sound/soc-dapm.h>

#include <asm/mach-types.h>
#include <asm/arch/hardware.h>
#include <linux/gpio.h>
#include <asm/arch/mcbsp.h>

#include "omap-mcbsp.h"
#include "omap-pcm.h"
#include "../codecs/tlv320aic3x.h"

#define N810_HEADSET_AMP_GPIO	10
#define N810_SPEAKER_AMP_GPIO	101

static struct clk *sys_clkout2;
static struct clk *sys_clkout2_src;
static struct clk *func96m_clk;

static int n810_spk_func;
static int n810_jack_func;
static int n810_dmic_func;

static void n810_ext_control(struct snd_soc_codec *codec)
{
	snd_soc_dapm_set_endpoint(codec, "Ext Spk", n810_spk_func);
	snd_soc_dapm_set_endpoint(codec, "Headphone Jack", n810_jack_func);
	snd_soc_dapm_set_endpoint(codec, "DMic", n810_dmic_func);

	snd_soc_dapm_sync_endpoints(codec);
}

static int n810_startup(struct snd_pcm_substream *substream)
{
	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	struct snd_soc_codec *codec = rtd->socdev->codec;

	n810_ext_control(codec);
	return clk_enable(sys_clkout2);
}

static void n810_shutdown(struct snd_pcm_substream *substream)
{
	clk_disable(sys_clkout2);
}

static int n810_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_codec_dai *codec_dai = rtd->dai->codec_dai;
	struct snd_soc_cpu_dai *cpu_dai = rtd->dai->cpu_dai;
	int err;

	/* Set codec DAI configuration */
	err = codec_dai->dai_ops.set_fmt(codec_dai,
					 SND_SOC_DAIFMT_I2S |
					 SND_SOC_DAIFMT_NB_NF |
					 SND_SOC_DAIFMT_CBM_CFM);
	if (err < 0)
		return err;

	/* Set cpu DAI configuration */
	err = cpu_dai->dai_ops.set_fmt(cpu_dai,
				       SND_SOC_DAIFMT_I2S |
				       SND_SOC_DAIFMT_NB_NF |
				       SND_SOC_DAIFMT_CBM_CFM);
	if (err < 0)
		return err;

	/* Set the codec system clock for DAC and ADC */
	err = codec_dai->dai_ops.set_sysclk(codec_dai, 0, 12000000,
					    SND_SOC_CLOCK_IN);

	return err;
}

static struct snd_soc_ops n810_ops = {
	.startup = n810_startup,
	.hw_params = n810_hw_params,
	.shutdown = n810_shutdown,
};

static int n810_get_spk(struct snd_kcontrol *kcontrol,
			struct snd_ctl_elem_value *ucontrol)
{
	ucontrol->value.integer.value[0] = n810_spk_func;

	return 0;
}

static int n810_set_spk(struct snd_kcontrol *kcontrol,
			struct snd_ctl_elem_value *ucontrol)
{
	struct snd_soc_codec *codec =  snd_kcontrol_chip(kcontrol);

	if (n810_spk_func == ucontrol->value.integer.value[0])
		return 0;

	n810_spk_func = ucontrol->value.integer.value[0];
	n810_ext_control(codec);

	return 1;
}

static int n810_get_jack(struct snd_kcontrol *kcontrol,
			 struct snd_ctl_elem_value *ucontrol)
{
	ucontrol->value.integer.value[0] = n810_jack_func;

	return 0;
}

static int n810_set_jack(struct snd_kcontrol *kcontrol,
			 struct snd_ctl_elem_value *ucontrol)
{
	struct snd_soc_codec *codec =  snd_kcontrol_chip(kcontrol);

	if (n810_jack_func == ucontrol->value.integer.value[0])
		return 0;

	n810_jack_func = ucontrol->value.integer.value[0];
	n810_ext_control(codec);

	return 1;
}

static int n810_get_input(struct snd_kcontrol *kcontrol,
			  struct snd_ctl_elem_value *ucontrol)
{
	ucontrol->value.integer.value[0] = n810_dmic_func;

	return 0;
}

static int n810_set_input(struct snd_kcontrol *kcontrol,
			  struct snd_ctl_elem_value *ucontrol)
{
	struct snd_soc_codec *codec =  snd_kcontrol_chip(kcontrol);

	if (n810_dmic_func == ucontrol->value.integer.value[0])
		return 0;

	n810_dmic_func = ucontrol->value.integer.value[0];
	n810_ext_control(codec);

	return 1;
}

static int n810_spk_event(struct snd_soc_dapm_widget *w,
			  struct snd_kcontrol *k, int event)
{
	if (SND_SOC_DAPM_EVENT_ON(event))
		gpio_set_value(N810_SPEAKER_AMP_GPIO, 1);
	else
		gpio_set_value(N810_SPEAKER_AMP_GPIO, 0);

	return 0;
}

static int n810_jack_event(struct snd_soc_dapm_widget *w,
			   struct snd_kcontrol *k, int event)
{
	if (SND_SOC_DAPM_EVENT_ON(event))
		gpio_set_value(N810_HEADSET_AMP_GPIO, 1);
	else
		gpio_set_value(N810_HEADSET_AMP_GPIO, 0);

	return 0;
}

static const struct snd_soc_dapm_widget aic33_dapm_widgets[] = {
	SND_SOC_DAPM_SPK("Ext Spk", n810_spk_event),
	SND_SOC_DAPM_HP("Headphone Jack", n810_jack_event),
	SND_SOC_DAPM_MIC("DMic", NULL),
};

static const struct snd_soc_dapm_route audio_map[] = {
	{"Headphone Jack", NULL, "HPLOUT"},
	{"Headphone Jack", NULL, "HPROUT"},

	{"Ext Spk", NULL, "LLOUT"},
	{"Ext Spk", NULL, "RLOUT"},

	{"DMic Rate 64", NULL, "Mic Bias 2V"},
	{"Mic Bias 2V", NULL, "DMic"},
};

static const char *spk_function[] = {"Off", "On"};
static const char *jack_function[] = {"Off", "Headphone"};
static const char *input_function[] = {"ADC", "Digital Mic"};
static const struct soc_enum n810_enum[] = {
	SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(spk_function), spk_function),
	SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(jack_function), jack_function),
	SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(input_function), input_function),
};

static const struct snd_kcontrol_new aic33_n810_controls[] = {
	SOC_ENUM_EXT("Speaker Function", n810_enum[0],
		     n810_get_spk, n810_set_spk),
	SOC_ENUM_EXT("Jack Function", n810_enum[1],
		     n810_get_jack, n810_set_jack),
	SOC_ENUM_EXT("Input Select",  n810_enum[2],
		     n810_get_input, n810_set_input),
};

static int n810_aic33_init(struct snd_soc_codec *codec)
{
	int i, err;

	/* Not connected */
	snd_soc_dapm_set_endpoint(codec, "MONO_LOUT", 0);
	snd_soc_dapm_set_endpoint(codec, "HPLCOM", 0);
	snd_soc_dapm_set_endpoint(codec, "HPRCOM", 0);

	/* Add N810 specific controls */
	for (i = 0; i < ARRAY_SIZE(aic33_n810_controls); i++) {
		err = snd_ctl_add(codec->card,
			snd_soc_cnew(&aic33_n810_controls[i], codec, NULL));
		if (err < 0)
			return err;
	}

	/* Add N810 specific widgets */
	snd_soc_dapm_new_controls(codec, aic33_dapm_widgets,
				  ARRAY_SIZE(aic33_dapm_widgets));

	/* Set up N810 specific audio path audio_map */
	snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));

	snd_soc_dapm_sync_endpoints(codec);

	return 0;
}

/* Digital audio interface glue - connects codec <--> CPU */
static struct snd_soc_dai_link n810_dai = {
	.name = "TLV320AIC33",
	.stream_name = "AIC33",
	.cpu_dai = &omap_mcbsp_dai[0],
	.codec_dai = &aic3x_dai,
	.init = n810_aic33_init,
	.ops = &n810_ops,
};

/* Audio machine driver */
static struct snd_soc_machine snd_soc_machine_n810 = {
	.name = "N810",
	.dai_link = &n810_dai,
	.num_links = 1,
};

/* Audio private data */
static struct aic3x_setup_data n810_aic33_setup = {
	.i2c_address = 0x18,
	.gpio_func[0] = AIC3X_GPIO1_FUNC_DISABLED,
	.gpio_func[1] = AIC3X_GPIO2_FUNC_DIGITAL_MIC_INPUT,
};

/* Audio subsystem */
static struct snd_soc_device n810_snd_devdata = {
	.machine = &snd_soc_machine_n810,
	.platform = &omap_soc_platform,
	.codec_dev = &soc_codec_dev_aic3x,
	.codec_data = &n810_aic33_setup,
};

static struct platform_device *n810_snd_device;

static int __init n810_soc_init(void)
{
	int err;
	struct device *dev;

	if (!(machine_is_nokia_n810() || machine_is_nokia_n810_wimax()))
		return -ENODEV;

	n810_snd_device = platform_device_alloc("soc-audio", -1);
	if (!n810_snd_device)
		return -ENOMEM;

	platform_set_drvdata(n810_snd_device, &n810_snd_devdata);
	n810_snd_devdata.dev = &n810_snd_device->dev;
	*(unsigned int *)n810_dai.cpu_dai->private_data = 1; /* McBSP2 */
	err = platform_device_add(n810_snd_device);
	if (err)
		goto err1;

	dev = &n810_snd_device->dev;

	sys_clkout2_src = clk_get(dev, "sys_clkout2_src");
	if (IS_ERR(sys_clkout2_src)) {
		dev_err(dev, "Could not get sys_clkout2_src clock\n");
		return -ENODEV;
	}
	sys_clkout2 = clk_get(dev, "sys_clkout2");
	if (IS_ERR(sys_clkout2)) {
		dev_err(dev, "Could not get sys_clkout2\n");
		goto err1;
	}
	/*
	 * Configure 12 MHz output on SYS_CLKOUT2. Therefore we must use
	 * 96 MHz as its parent in order to get 12 MHz
	 */
	func96m_clk = clk_get(dev, "func_96m_ck");
	if (IS_ERR(func96m_clk)) {
		dev_err(dev, "Could not get func 96M clock\n");
		goto err2;
	}
	clk_set_parent(sys_clkout2_src, func96m_clk);
	clk_set_rate(sys_clkout2, 12000000);

	if (gpio_request(N810_HEADSET_AMP_GPIO, "hs_amp") < 0)
		BUG();
	if (gpio_request(N810_SPEAKER_AMP_GPIO, "spk_amp") < 0)
		BUG();
	gpio_direction_output(N810_HEADSET_AMP_GPIO, 0);
	gpio_direction_output(N810_SPEAKER_AMP_GPIO, 0);

	return 0;
err2:
	clk_put(sys_clkout2);
	platform_device_del(n810_snd_device);
err1:
	platform_device_put(n810_snd_device);

	return err;

}

static void __exit n810_soc_exit(void)
{
	gpio_free(N810_SPEAKER_AMP_GPIO);
	gpio_free(N810_HEADSET_AMP_GPIO);

	platform_device_unregister(n810_snd_device);
}

module_init(n810_soc_init);
module_exit(n810_soc_exit);

MODULE_AUTHOR("Jarkko Nikula <jarkko.nikula@nokia.com>");
MODULE_DESCRIPTION("ALSA SoC Nokia N810");
MODULE_LICENSE("GPL");
Commit	Line	Data
2e74796a JN	1	/*
	2	* n810.c -- SoC audio for Nokia N810
	3	*
	4	* Copyright (C) 2008 Nokia Corporation
	5	*
	6	* Contact: Jarkko Nikula <jarkko.nikula@nokia.com>
	7	*
	8	* This program is free software; you can redistribute it and/or
	9	* modify it under the terms of the GNU General Public License
	10	* version 2 as published by the Free Software Foundation.
	11	*
	12	* This program is distributed in the hope that it will be useful, but
	13	* WITHOUT ANY WARRANTY; without even the implied warranty of
	14	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	15	* General Public License for more details.
	16	*
	17	* You should have received a copy of the GNU General Public License
	18	* along with this program; if not, write to the Free Software
	19	* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
	20	* 02110-1301 USA
	21	*
	22	*/
	23
	24	#include <linux/clk.h>
	25	#include <linux/platform_device.h>
	26	#include <sound/core.h>
	27	#include <sound/pcm.h>
	28	#include <sound/soc.h>
	29	#include <sound/soc-dapm.h>
	30
	31	#include <asm/mach-types.h>
	32	#include <asm/arch/hardware.h>
f99a633a	33	#include <linux/gpio.h>
2e74796a JN	34	#include <asm/arch/mcbsp.h>
	35
	36	#include "omap-mcbsp.h"
	37	#include "omap-pcm.h"
	38	#include "../codecs/tlv320aic3x.h"
	39
f99a633a JN	40	#define N810_HEADSET_AMP_GPIO 10
f99a633a JN	41	#define N810_SPEAKER_AMP_GPIO 101
2e74796a JN	42
	43	static struct clk *sys_clkout2;
	44	static struct clk *sys_clkout2_src;
	45	static struct clk *func96m_clk;
	46
	47	static int n810_spk_func;
	48	static int n810_jack_func;
90b9e476	49	static int n810_dmic_func;
2e74796a JN	50
	51	static void n810_ext_control(struct snd_soc_codec *codec)
	52	{
	53	snd_soc_dapm_set_endpoint(codec, "Ext Spk", n810_spk_func);
	54	snd_soc_dapm_set_endpoint(codec, "Headphone Jack", n810_jack_func);
90b9e476	55	snd_soc_dapm_set_endpoint(codec, "DMic", n810_dmic_func);
2e74796a JN	56
	57	snd_soc_dapm_sync_endpoints(codec);
	58	}
	59
	60	static int n810_startup(struct snd_pcm_substream *substream)
	61	{
	62	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	63	struct snd_soc_codec *codec = rtd->socdev->codec;
	64
	65	n810_ext_control(codec);
	66	return clk_enable(sys_clkout2);
	67	}
	68
	69	static void n810_shutdown(struct snd_pcm_substream *substream)
	70	{
	71	clk_disable(sys_clkout2);
	72	}
	73
	74	static int n810_hw_params(struct snd_pcm_substream *substream,
	75	struct snd_pcm_hw_params *params)
	76	{
	77	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	78	struct snd_soc_codec_dai *codec_dai = rtd->dai->codec_dai;
	79	struct snd_soc_cpu_dai *cpu_dai = rtd->dai->cpu_dai;
	80	int err;
	81
	82	/* Set codec DAI configuration */
	83	err = codec_dai->dai_ops.set_fmt(codec_dai,
	84	SND_SOC_DAIFMT_I2S \|
	85	SND_SOC_DAIFMT_NB_NF \|
	86	SND_SOC_DAIFMT_CBM_CFM);
	87	if (err < 0)
	88	return err;
	89
	90	/* Set cpu DAI configuration */
	91	err = cpu_dai->dai_ops.set_fmt(cpu_dai,
	92	SND_SOC_DAIFMT_I2S \|
	93	SND_SOC_DAIFMT_NB_NF \|
	94	SND_SOC_DAIFMT_CBM_CFM);
	95	if (err < 0)
	96	return err;
	97
	98	/* Set the codec system clock for DAC and ADC */
	99	err = codec_dai->dai_ops.set_sysclk(codec_dai, 0, 12000000,
	100	SND_SOC_CLOCK_IN);
	101
	102	return err;
	103	}
	104
	105	static struct snd_soc_ops n810_ops = {
	106	.startup = n810_startup,
	107	.hw_params = n810_hw_params,
	108	.shutdown = n810_shutdown,
	109	};
	110
	111	static int n810_get_spk(struct snd_kcontrol *kcontrol,
	112	struct snd_ctl_elem_value *ucontrol)
	113	{
	114	ucontrol->value.integer.value[0] = n810_spk_func;
	115
	116	return 0;
	117	}
	118
	119	static int n810_set_spk(struct snd_kcontrol *kcontrol,
120	struct snd_ctl_elem_value *ucontrol)
121	{
122	struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
123
124	if (n810_spk_func == ucontrol->value.integer.value[0])
125	return 0;
126
127	n810_spk_func = ucontrol->value.integer.value[0];
128	n810_ext_control(codec);
129
130	return 1;
131	}
132
133	static int n810_get_jack(struct snd_kcontrol *kcontrol,
134	struct snd_ctl_elem_value *ucontrol)
135	{
136	ucontrol->value.integer.value[0] = n810_jack_func;
137
138	return 0;
139	}
140
141	static int n810_set_jack(struct snd_kcontrol *kcontrol,
142	struct snd_ctl_elem_value *ucontrol)
143	{
144	struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
145
146	if (n810_jack_func == ucontrol->value.integer.value[0])
147	return 0;
148
149	n810_jack_func = ucontrol->value.integer.value[0];
150	n810_ext_control(codec);
151
152	return 1;
153	}
154
90b9e476 JN	155	static int n810_get_input(struct snd_kcontrol *kcontrol,
	156	struct snd_ctl_elem_value *ucontrol)
	157	{
	158	ucontrol->value.integer.value[0] = n810_dmic_func;
	159
	160	return 0;
	161	}
	162
	163	static int n810_set_input(struct snd_kcontrol *kcontrol,
	164	struct snd_ctl_elem_value *ucontrol)
	165	{
	166	struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
	167
	168	if (n810_dmic_func == ucontrol->value.integer.value[0])
	169	return 0;
	170
	171	n810_dmic_func = ucontrol->value.integer.value[0];
	172	n810_ext_control(codec);
	173
	174	return 1;
	175	}
	176
2e74796a JN	177	static int n810_spk_event(struct snd_soc_dapm_widget *w,
	178	struct snd_kcontrol *k, int event)
	179	{
	180	if (SND_SOC_DAPM_EVENT_ON(event))
f99a633a	181	gpio_set_value(N810_SPEAKER_AMP_GPIO, 1);
2e74796a	182	else
f99a633a	183	gpio_set_value(N810_SPEAKER_AMP_GPIO, 0);
2e74796a JN	184
	185	return 0;
	186	}
	187
	188	static int n810_jack_event(struct snd_soc_dapm_widget *w,
	189	struct snd_kcontrol *k, int event)
	190	{
	191	if (SND_SOC_DAPM_EVENT_ON(event))
f99a633a	192	gpio_set_value(N810_HEADSET_AMP_GPIO, 1);
2e74796a	193	else
f99a633a	194	gpio_set_value(N810_HEADSET_AMP_GPIO, 0);
2e74796a JN	195
	196	return 0;
	197	}
	198
	199	static const struct snd_soc_dapm_widget aic33_dapm_widgets[] = {
	200	SND_SOC_DAPM_SPK("Ext Spk", n810_spk_event),
	201	SND_SOC_DAPM_HP("Headphone Jack", n810_jack_event),
90b9e476	202	SND_SOC_DAPM_MIC("DMic", NULL),
2e74796a JN	203	};
2e74796a JN	204
1a250598	205	static const struct snd_soc_dapm_route audio_map[] = {
2e74796a JN	206	{"Headphone Jack", NULL, "HPLOUT"},
	207	{"Headphone Jack", NULL, "HPROUT"},
	208
	209	{"Ext Spk", NULL, "LLOUT"},
	210	{"Ext Spk", NULL, "RLOUT"},
90b9e476 JN	211
	212	{"DMic Rate 64", NULL, "Mic Bias 2V"},
	213	{"Mic Bias 2V", NULL, "DMic"},
2e74796a JN	214	};
	215
	216	static const char *spk_function[] = {"Off", "On"};
	217	static const char *jack_function[] = {"Off", "Headphone"};
90b9e476	218	static const char *input_function[] = {"ADC", "Digital Mic"};
2e74796a	219	static const struct soc_enum n810_enum[] = {
3c172791 JN	220	SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(spk_function), spk_function),
3c172791 JN	221	SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(jack_function), jack_function),
90b9e476	222	SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(input_function), input_function),
2e74796a JN	223	};
	224
	225	static const struct snd_kcontrol_new aic33_n810_controls[] = {
	226	SOC_ENUM_EXT("Speaker Function", n810_enum[0],
	227	n810_get_spk, n810_set_spk),
	228	SOC_ENUM_EXT("Jack Function", n810_enum[1],
	229	n810_get_jack, n810_set_jack),
90b9e476 JN	230	SOC_ENUM_EXT("Input Select", n810_enum[2],
90b9e476 JN	231	n810_get_input, n810_set_input),
2e74796a JN	232	};
	233
	234	static int n810_aic33_init(struct snd_soc_codec *codec)
	235	{
	236	int i, err;
	237
	238	/* Not connected */
	239	snd_soc_dapm_set_endpoint(codec, "MONO_LOUT", 0);
	240	snd_soc_dapm_set_endpoint(codec, "HPLCOM", 0);
	241	snd_soc_dapm_set_endpoint(codec, "HPRCOM", 0);
	242
	243	/* Add N810 specific controls */
	244	for (i = 0; i < ARRAY_SIZE(aic33_n810_controls); i++) {
	245	err = snd_ctl_add(codec->card,
	246	snd_soc_cnew(&aic33_n810_controls[i], codec, NULL));
	247	if (err < 0)
	248	return err;
	249	}
	250
	251	/* Add N810 specific widgets */
1a250598 MB	252	snd_soc_dapm_new_controls(codec, aic33_dapm_widgets,
1a250598 MB	253	ARRAY_SIZE(aic33_dapm_widgets));
2e74796a JN	254
2e74796a JN	255	/* Set up N810 specific audio path audio_map */
1a250598	256	snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));
2e74796a JN	257
	258	snd_soc_dapm_sync_endpoints(codec);
	259
	260	return 0;
	261	}
	262
	263	/* Digital audio interface glue - connects codec <--> CPU */
	264	static struct snd_soc_dai_link n810_dai = {
	265	.name = "TLV320AIC33",
	266	.stream_name = "AIC33",
	267	.cpu_dai = &omap_mcbsp_dai[0],
	268	.codec_dai = &aic3x_dai,
	269	.init = n810_aic33_init,
	270	.ops = &n810_ops,
	271	};
	272
	273	/* Audio machine driver */
	274	static struct snd_soc_machine snd_soc_machine_n810 = {
	275	.name = "N810",
	276	.dai_link = &n810_dai,
	277	.num_links = 1,
	278	};
	279
	280	/* Audio private data */
	281	static struct aic3x_setup_data n810_aic33_setup = {
	282	.i2c_address = 0x18,
90b9e476 JN	283	.gpio_func[0] = AIC3X_GPIO1_FUNC_DISABLED,
90b9e476 JN	284	.gpio_func[1] = AIC3X_GPIO2_FUNC_DIGITAL_MIC_INPUT,
2e74796a JN	285	};
	286
	287	/* Audio subsystem */
	288	static struct snd_soc_device n810_snd_devdata = {
	289	.machine = &snd_soc_machine_n810,
	290	.platform = &omap_soc_platform,
	291	.codec_dev = &soc_codec_dev_aic3x,
	292	.codec_data = &n810_aic33_setup,
	293	};
	294
	295	static struct platform_device *n810_snd_device;
	296
	297	static int __init n810_soc_init(void)
	298	{
	299	int err;
	300	struct device *dev;
	301
6e132fa6	302	if (!(machine_is_nokia_n810() \|\| machine_is_nokia_n810_wimax()))
2e74796a JN	303	return -ENODEV;
	304
	305	n810_snd_device = platform_device_alloc("soc-audio", -1);
	306	if (!n810_snd_device)
	307	return -ENOMEM;
	308
	309	platform_set_drvdata(n810_snd_device, &n810_snd_devdata);
	310	n810_snd_devdata.dev = &n810_snd_device->dev;
	311	(unsigned int )n810_dai.cpu_dai->private_data = 1; /* McBSP2 */
	312	err = platform_device_add(n810_snd_device);
	313	if (err)
	314	goto err1;
	315
	316	dev = &n810_snd_device->dev;
	317
	318	sys_clkout2_src = clk_get(dev, "sys_clkout2_src");
	319	if (IS_ERR(sys_clkout2_src)) {
	320	dev_err(dev, "Could not get sys_clkout2_src clock\n");
	321	return -ENODEV;
	322	}
	323	sys_clkout2 = clk_get(dev, "sys_clkout2");
	324	if (IS_ERR(sys_clkout2)) {
	325	dev_err(dev, "Could not get sys_clkout2\n");
	326	goto err1;
	327	}
	328	/*
	329	* Configure 12 MHz output on SYS_CLKOUT2. Therefore we must use
	330	* 96 MHz as its parent in order to get 12 MHz
	331	*/
	332	func96m_clk = clk_get(dev, "func_96m_ck");
	333	if (IS_ERR(func96m_clk)) {
	334	dev_err(dev, "Could not get func 96M clock\n");
	335	goto err2;
	336	}
	337	clk_set_parent(sys_clkout2_src, func96m_clk);
	338	clk_set_rate(sys_clkout2, 12000000);
	339
f99a633a	340	if (gpio_request(N810_HEADSET_AMP_GPIO, "hs_amp") < 0)
2e74796a	341	BUG();
f99a633a	342	if (gpio_request(N810_SPEAKER_AMP_GPIO, "spk_amp") < 0)
2e74796a	343	BUG();
f99a633a JN	344	gpio_direction_output(N810_HEADSET_AMP_GPIO, 0);
f99a633a JN	345	gpio_direction_output(N810_SPEAKER_AMP_GPIO, 0);
2e74796a JN	346
	347	return 0;
	348	err2:
	349	clk_put(sys_clkout2);
	350	platform_device_del(n810_snd_device);
	351	err1:
	352	platform_device_put(n810_snd_device);
	353
	354	return err;
	355
	356	}
	357
	358	static void __exit n810_soc_exit(void)
	359	{
f99a633a JN	360	gpio_free(N810_SPEAKER_AMP_GPIO);
	361	gpio_free(N810_HEADSET_AMP_GPIO);
	362
2e74796a JN	363	platform_device_unregister(n810_snd_device);
	364	}
	365
	366	module_init(n810_soc_init);
	367	module_exit(n810_soc_exit);
	368
	369	MODULE_AUTHOR("Jarkko Nikula <jarkko.nikula@nokia.com>");
	370	MODULE_DESCRIPTION("ALSA SoC Nokia N810");
	371	MODULE_LICENSE("GPL");