[deliverable/linux.git] / sound / soc / omap / omap3pandora.c

/*
 * omap3pandora.c  --  SoC audio for Pandora Handheld Console
 *
 * Author: Gražvydas Ignotas <notasas@gmail.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 <linux/gpio.h>
#include <linux/delay.h>
#include <linux/regulator/consumer.h>

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

#include <asm/mach-types.h>
#include <plat/mcbsp.h>

#include "omap-mcbsp.h"
#include "omap-pcm.h"

#define OMAP3_PANDORA_DAC_POWER_GPIO	118
#define OMAP3_PANDORA_AMP_POWER_GPIO	14

#define PREFIX "ASoC omap3pandora: "

static struct regulator *omap3pandora_dac_reg;

static int omap3pandora_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;
	int fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
		  SND_SOC_DAIFMT_CBS_CFS;
	int ret;

	/* Set codec DAI configuration */
	ret = snd_soc_dai_set_fmt(codec_dai, fmt);
	if (ret < 0) {
		pr_err(PREFIX "can't set codec DAI configuration\n");
		return ret;
	}

	/* Set cpu DAI configuration */
	ret = snd_soc_dai_set_fmt(cpu_dai, fmt);
	if (ret < 0) {
		pr_err(PREFIX "can't set cpu DAI configuration\n");
		return ret;
	}

	/* Set the codec system clock for DAC and ADC */
	ret = snd_soc_dai_set_sysclk(codec_dai, 0, 26000000,
					    SND_SOC_CLOCK_IN);
	if (ret < 0) {
		pr_err(PREFIX "can't set codec system clock\n");
		return ret;
	}

	/* Set McBSP clock to external */
	ret = snd_soc_dai_set_sysclk(cpu_dai, OMAP_MCBSP_SYSCLK_CLKS_EXT,
				     256 * params_rate(params),
				     SND_SOC_CLOCK_IN);
	if (ret < 0) {
		pr_err(PREFIX "can't set cpu system clock\n");
		return ret;
	}

	ret = snd_soc_dai_set_clkdiv(cpu_dai, OMAP_MCBSP_CLKGDV, 8);
	if (ret < 0) {
		pr_err(PREFIX "can't set SRG clock divider\n");
		return ret;
	}

	return 0;
}

static int omap3pandora_dac_event(struct snd_soc_dapm_widget *w,
	struct snd_kcontrol *k, int event)
{
	/*
	 * The PCM1773 DAC datasheet requires 1ms delay between switching
	 * VCC power on/off and /PD pin high/low
	 */
	if (SND_SOC_DAPM_EVENT_ON(event)) {
		regulator_enable(omap3pandora_dac_reg);
		mdelay(1);
		gpio_set_value(OMAP3_PANDORA_DAC_POWER_GPIO, 1);
	} else {
		gpio_set_value(OMAP3_PANDORA_DAC_POWER_GPIO, 0);
		mdelay(1);
		regulator_disable(omap3pandora_dac_reg);
	}

	return 0;
}

static int omap3pandora_hp_event(struct snd_soc_dapm_widget *w,
	struct snd_kcontrol *k, int event)
{
	if (SND_SOC_DAPM_EVENT_ON(event))
		gpio_set_value(OMAP3_PANDORA_AMP_POWER_GPIO, 1);
	else
		gpio_set_value(OMAP3_PANDORA_AMP_POWER_GPIO, 0);

	return 0;
}

/*
 * Audio paths on Pandora board:
 *
 *  |O| ---> PCM DAC +-> AMP -> Headphone Jack
 *  |M|         A    +--------> Line Out
 *  |A| <~~clk~~+
 *  |P| <--- TWL4030 <--------- Line In and MICs
 */
static const struct snd_soc_dapm_widget omap3pandora_out_dapm_widgets[] = {
	SND_SOC_DAPM_DAC_E("PCM DAC", "HiFi Playback", SND_SOC_NOPM,
			   0, 0, omap3pandora_dac_event,
			   SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
	SND_SOC_DAPM_PGA_E("Headphone Amplifier", SND_SOC_NOPM,
			   0, 0, NULL, 0, omap3pandora_hp_event,
			   SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
	SND_SOC_DAPM_HP("Headphone Jack", NULL),
	SND_SOC_DAPM_LINE("Line Out", NULL),
};

static const struct snd_soc_dapm_widget omap3pandora_in_dapm_widgets[] = {
	SND_SOC_DAPM_MIC("Mic (internal)", NULL),
	SND_SOC_DAPM_MIC("Mic (external)", NULL),
	SND_SOC_DAPM_LINE("Line In", NULL),
};

static const struct snd_soc_dapm_route omap3pandora_out_map[] = {
	{"PCM DAC", NULL, "APLL Enable"},
	{"Headphone Amplifier", NULL, "PCM DAC"},
	{"Line Out", NULL, "PCM DAC"},
	{"Headphone Jack", NULL, "Headphone Amplifier"},
};

static const struct snd_soc_dapm_route omap3pandora_in_map[] = {
	{"AUXL", NULL, "Line In"},
	{"AUXR", NULL, "Line In"},

	{"MAINMIC", NULL, "Mic Bias 1"},
	{"Mic Bias 1", NULL, "Mic (internal)"},

	{"SUBMIC", NULL, "Mic Bias 2"},
	{"Mic Bias 2", NULL, "Mic (external)"},
};

static int omap3pandora_out_init(struct snd_soc_pcm_runtime *rtd)
{
	struct snd_soc_codec *codec = rtd->codec;
	int ret;

	/* All TWL4030 output pins are floating */
	snd_soc_dapm_nc_pin(codec, "EARPIECE");
	snd_soc_dapm_nc_pin(codec, "PREDRIVEL");
	snd_soc_dapm_nc_pin(codec, "PREDRIVER");
	snd_soc_dapm_nc_pin(codec, "HSOL");
	snd_soc_dapm_nc_pin(codec, "HSOR");
	snd_soc_dapm_nc_pin(codec, "CARKITL");
	snd_soc_dapm_nc_pin(codec, "CARKITR");
	snd_soc_dapm_nc_pin(codec, "HFL");
	snd_soc_dapm_nc_pin(codec, "HFR");
	snd_soc_dapm_nc_pin(codec, "VIBRA");

	ret = snd_soc_dapm_new_controls(codec, omap3pandora_out_dapm_widgets,
				ARRAY_SIZE(omap3pandora_out_dapm_widgets));
	if (ret < 0)
		return ret;

	snd_soc_dapm_add_routes(codec, omap3pandora_out_map,
		ARRAY_SIZE(omap3pandora_out_map));

	return snd_soc_dapm_sync(codec);
}

static int omap3pandora_in_init(struct snd_soc_pcm_runtime *rtd)
{
	struct snd_soc_codec *codec = rtd->codec;
	int ret;

	/* Not comnnected */
	snd_soc_dapm_nc_pin(codec, "HSMIC");
	snd_soc_dapm_nc_pin(codec, "CARKITMIC");
	snd_soc_dapm_nc_pin(codec, "DIGIMIC0");
	snd_soc_dapm_nc_pin(codec, "DIGIMIC1");

	ret = snd_soc_dapm_new_controls(codec, omap3pandora_in_dapm_widgets,
				ARRAY_SIZE(omap3pandora_in_dapm_widgets));
	if (ret < 0)
		return ret;

	snd_soc_dapm_add_routes(codec, omap3pandora_in_map,
		ARRAY_SIZE(omap3pandora_in_map));

	return snd_soc_dapm_sync(codec);
}

static struct snd_soc_ops omap3pandora_ops = {
	.hw_params = omap3pandora_hw_params,
};

/* Digital audio interface glue - connects codec <--> CPU */
static struct snd_soc_dai_link omap3pandora_dai[] = {
	{
		.name = "PCM1773",
		.stream_name = "HiFi Out",
		.cpu_dai_name = "omap-mcbsp-dai.1",
		.codec_dai_name = "twl4030-hifi",
		.platform_name = "omap-pcm-audio",
		.codec_name = "twl4030-codec",
		.ops = &omap3pandora_ops,
		.init = omap3pandora_out_init,
	}, {
		.name = "TWL4030",
		.stream_name = "Line/Mic In",
		.cpu_dai_name = "omap-mcbsp-dai.3",
		.codec_dai_name = "twl4030-hifi",
		.platform_name = "omap-pcm-audio",
		.codec_name = "twl4030-codec",
		.ops = &omap3pandora_ops,
		.init = omap3pandora_in_init,
	}
};

/* SoC card */
static struct snd_soc_card snd_soc_card_omap3pandora = {
	.name = "omap3pandora",
	.dai_link = omap3pandora_dai,
	.num_links = ARRAY_SIZE(omap3pandora_dai),
};

static struct platform_device *omap3pandora_snd_device;

static int __init omap3pandora_soc_init(void)
{
	int ret;

	if (!machine_is_omap3_pandora())
		return -ENODEV;

	pr_info("OMAP3 Pandora SoC init\n");

	ret = gpio_request(OMAP3_PANDORA_DAC_POWER_GPIO, "dac_power");
	if (ret) {
		pr_err(PREFIX "Failed to get DAC power GPIO\n");
		return ret;
	}

	ret = gpio_direction_output(OMAP3_PANDORA_DAC_POWER_GPIO, 0);
	if (ret) {
		pr_err(PREFIX "Failed to set DAC power GPIO direction\n");
		goto fail0;
	}

	ret = gpio_request(OMAP3_PANDORA_AMP_POWER_GPIO, "amp_power");
	if (ret) {
		pr_err(PREFIX "Failed to get amp power GPIO\n");
		goto fail0;
	}

	ret = gpio_direction_output(OMAP3_PANDORA_AMP_POWER_GPIO, 0);
	if (ret) {
		pr_err(PREFIX "Failed to set amp power GPIO direction\n");
		goto fail1;
	}

	omap3pandora_snd_device = platform_device_alloc("soc-audio", -1);
	if (omap3pandora_snd_device == NULL) {
		pr_err(PREFIX "Platform device allocation failed\n");
		ret = -ENOMEM;
		goto fail1;
	}

	platform_set_drvdata(omap3pandora_snd_device, &snd_soc_card_omap3pandora);

	ret = platform_device_add(omap3pandora_snd_device);
	if (ret) {
		pr_err(PREFIX "Unable to add platform device\n");
		goto fail2;
	}

	omap3pandora_dac_reg = regulator_get(&omap3pandora_snd_device->dev, "vcc");
	if (IS_ERR(omap3pandora_dac_reg)) {
		pr_err(PREFIX "Failed to get DAC regulator from %s: %ld\n",
			dev_name(&omap3pandora_snd_device->dev),
			PTR_ERR(omap3pandora_dac_reg));
		ret = PTR_ERR(omap3pandora_dac_reg);
		goto fail3;
	}

	return 0;

fail3:
	platform_device_del(omap3pandora_snd_device);
fail2:
	platform_device_put(omap3pandora_snd_device);
fail1:
	gpio_free(OMAP3_PANDORA_AMP_POWER_GPIO);
fail0:
	gpio_free(OMAP3_PANDORA_DAC_POWER_GPIO);
	return ret;
}
module_init(omap3pandora_soc_init);

static void __exit omap3pandora_soc_exit(void)
{
	regulator_put(omap3pandora_dac_reg);
	platform_device_unregister(omap3pandora_snd_device);
	gpio_free(OMAP3_PANDORA_AMP_POWER_GPIO);
	gpio_free(OMAP3_PANDORA_DAC_POWER_GPIO);
}
module_exit(omap3pandora_soc_exit);

MODULE_AUTHOR("Grazvydas Ignotas <notasas@gmail.com>");
MODULE_DESCRIPTION("ALSA SoC OMAP3 Pandora");
MODULE_LICENSE("GPL");
Commit	Line	Data
68fb7407 GI	1	/*
	2	* omap3pandora.c -- SoC audio for Pandora Handheld Console
	3	*
	4	* Author: Gražvydas Ignotas <notasas@gmail.com>
	5	*
	6	* This program is free software; you can redistribute it and/or
	7	* modify it under the terms of the GNU General Public License
	8	* version 2 as published by the Free Software Foundation.
	9	*
	10	* This program is distributed in the hope that it will be useful, but
	11	* WITHOUT ANY WARRANTY; without even the implied warranty of
	12	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	13	* General Public License for more details.
	14	*
	15	* You should have received a copy of the GNU General Public License
	16	* along with this program; if not, write to the Free Software
	17	* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
	18	* 02110-1301 USA
	19	*
	20	*/
	21
	22	#include <linux/clk.h>
	23	#include <linux/platform_device.h>
	24	#include <linux/gpio.h>
	25	#include <linux/delay.h>
c50749de	26	#include <linux/regulator/consumer.h>
68fb7407 GI	27
	28	#include <sound/core.h>
	29	#include <sound/pcm.h>
	30	#include <sound/soc.h>
	31	#include <sound/soc-dapm.h>
	32
	33	#include <asm/mach-types.h>
f0fba2ad	34	#include <plat/mcbsp.h>
68fb7407 GI	35
	36	#include "omap-mcbsp.h"
	37	#include "omap-pcm.h"
68fb7407 GI	38
	39	#define OMAP3_PANDORA_DAC_POWER_GPIO 118
	40	#define OMAP3_PANDORA_AMP_POWER_GPIO 14
	41
	42	#define PREFIX "ASoC omap3pandora: "
	43
c50749de GI	44	static struct regulator *omap3pandora_dac_reg;
c50749de GI	45
4b94dba0 GI	46	static int omap3pandora_hw_params(struct snd_pcm_substream *substream,
4b94dba0 GI	47	struct snd_pcm_hw_params *params)
68fb7407	48	{
9e5d86fe	49	struct snd_soc_pcm_runtime *rtd = substream->private_data;
f0fba2ad LG	50	struct snd_soc_dai *codec_dai = rtd->codec_dai;
f0fba2ad LG	51	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
4b94dba0 GI	52	int fmt = SND_SOC_DAIFMT_I2S \| SND_SOC_DAIFMT_NB_NF \|
4b94dba0 GI	53	SND_SOC_DAIFMT_CBS_CFS;
68fb7407 GI	54	int ret;
	55
	56	/* Set codec DAI configuration */
	57	ret = snd_soc_dai_set_fmt(codec_dai, fmt);
	58	if (ret < 0) {
	59	pr_err(PREFIX "can't set codec DAI configuration\n");
	60	return ret;
	61	}
	62
	63	/* Set cpu DAI configuration */
	64	ret = snd_soc_dai_set_fmt(cpu_dai, fmt);
	65	if (ret < 0) {
	66	pr_err(PREFIX "can't set cpu DAI configuration\n");
	67	return ret;
	68	}
	69
	70	/* Set the codec system clock for DAC and ADC */
	71	ret = snd_soc_dai_set_sysclk(codec_dai, 0, 26000000,
	72	SND_SOC_CLOCK_IN);
	73	if (ret < 0) {
	74	pr_err(PREFIX "can't set codec system clock\n");
	75	return ret;
	76	}
	77
	78	/* Set McBSP clock to external */
9e5d86fe JN	79	ret = snd_soc_dai_set_sysclk(cpu_dai, OMAP_MCBSP_SYSCLK_CLKS_EXT,
	80	256 * params_rate(params),
	81	SND_SOC_CLOCK_IN);
68fb7407 GI	82	if (ret < 0) {
	83	pr_err(PREFIX "can't set cpu system clock\n");
	84	return ret;
	85	}
	86
	87	ret = snd_soc_dai_set_clkdiv(cpu_dai, OMAP_MCBSP_CLKGDV, 8);
	88	if (ret < 0) {
	89	pr_err(PREFIX "can't set SRG clock divider\n");
	90	return ret;
	91	}
	92
	93	return 0;
	94	}
	95
c50749de	96	static int omap3pandora_dac_event(struct snd_soc_dapm_widget *w,
68fb7407 GI	97	struct snd_kcontrol *k, int event)
68fb7407 GI	98	{
c50749de GI	99	/*
	100	* The PCM1773 DAC datasheet requires 1ms delay between switching
	101	* VCC power on/off and /PD pin high/low
	102	*/
68fb7407	103	if (SND_SOC_DAPM_EVENT_ON(event)) {
c50749de GI	104	regulator_enable(omap3pandora_dac_reg);
c50749de GI	105	mdelay(1);
68fb7407	106	gpio_set_value(OMAP3_PANDORA_DAC_POWER_GPIO, 1);
68fb7407	107	} else {
68fb7407	108	gpio_set_value(OMAP3_PANDORA_DAC_POWER_GPIO, 0);
c50749de GI	109	mdelay(1);
c50749de GI	110	regulator_disable(omap3pandora_dac_reg);
68fb7407 GI	111	}
	112
	113	return 0;
	114	}
	115
c50749de GI	116	static int omap3pandora_hp_event(struct snd_soc_dapm_widget *w,
	117	struct snd_kcontrol *k, int event)
	118	{
	119	if (SND_SOC_DAPM_EVENT_ON(event))
	120	gpio_set_value(OMAP3_PANDORA_AMP_POWER_GPIO, 1);
	121	else
	122	gpio_set_value(OMAP3_PANDORA_AMP_POWER_GPIO, 0);
	123
	124	return 0;
	125	}
	126
68fb7407 GI	127	/*
	128	* Audio paths on Pandora board:
	129	*
	130	* \|O\| ---> PCM DAC +-> AMP -> Headphone Jack
	131	* \|M\| A +--------> Line Out
	132	* \|A\| <~~clk~~+
	133	* \|P\| <--- TWL4030 <--------- Line In and MICs
	134	*/
	135	static const struct snd_soc_dapm_widget omap3pandora_out_dapm_widgets[] = {
c50749de GI	136	SND_SOC_DAPM_DAC_E("PCM DAC", "HiFi Playback", SND_SOC_NOPM,
	137	0, 0, omap3pandora_dac_event,
	138	SND_SOC_DAPM_POST_PMU \| SND_SOC_DAPM_PRE_PMD),
68fb7407 GI	139	SND_SOC_DAPM_PGA_E("Headphone Amplifier", SND_SOC_NOPM,
	140	0, 0, NULL, 0, omap3pandora_hp_event,
	141	SND_SOC_DAPM_POST_PMU \| SND_SOC_DAPM_PRE_PMD),
	142	SND_SOC_DAPM_HP("Headphone Jack", NULL),
	143	SND_SOC_DAPM_LINE("Line Out", NULL),
	144	};
	145
	146	static const struct snd_soc_dapm_widget omap3pandora_in_dapm_widgets[] = {
8f008062	147	SND_SOC_DAPM_MIC("Mic (internal)", NULL),
68fb7407 GI	148	SND_SOC_DAPM_MIC("Mic (external)", NULL),
	149	SND_SOC_DAPM_LINE("Line In", NULL),
	150	};
	151
	152	static const struct snd_soc_dapm_route omap3pandora_out_map[] = {
3b9447fb	153	{"PCM DAC", NULL, "APLL Enable"},
68fb7407 GI	154	{"Headphone Amplifier", NULL, "PCM DAC"},
	155	{"Line Out", NULL, "PCM DAC"},
	156	{"Headphone Jack", NULL, "Headphone Amplifier"},
	157	};
	158
	159	static const struct snd_soc_dapm_route omap3pandora_in_map[] = {
8f008062 GI	160	{"AUXL", NULL, "Line In"},
	161	{"AUXR", NULL, "Line In"},
	162
	163	{"MAINMIC", NULL, "Mic Bias 1"},
	164	{"Mic Bias 1", NULL, "Mic (internal)"},
	165
	166	{"SUBMIC", NULL, "Mic Bias 2"},
	167	{"Mic Bias 2", NULL, "Mic (external)"},
68fb7407 GI	168	};
68fb7407 GI	169
f0fba2ad	170	static int omap3pandora_out_init(struct snd_soc_pcm_runtime *rtd)
68fb7407	171	{
f0fba2ad	172	struct snd_soc_codec *codec = rtd->codec;
68fb7407 GI	173	int ret;
68fb7407 GI	174
8f008062	175	/* All TWL4030 output pins are floating */
8f008062 GI	176	snd_soc_dapm_nc_pin(codec, "EARPIECE");
	177	snd_soc_dapm_nc_pin(codec, "PREDRIVEL");
	178	snd_soc_dapm_nc_pin(codec, "PREDRIVER");
	179	snd_soc_dapm_nc_pin(codec, "HSOL");
	180	snd_soc_dapm_nc_pin(codec, "HSOR");
	181	snd_soc_dapm_nc_pin(codec, "CARKITL");
	182	snd_soc_dapm_nc_pin(codec, "CARKITR");
	183	snd_soc_dapm_nc_pin(codec, "HFL");
	184	snd_soc_dapm_nc_pin(codec, "HFR");
f3dd7041	185	snd_soc_dapm_nc_pin(codec, "VIBRA");
8f008062	186
68fb7407 GI	187	ret = snd_soc_dapm_new_controls(codec, omap3pandora_out_dapm_widgets,
	188	ARRAY_SIZE(omap3pandora_out_dapm_widgets));
	189	if (ret < 0)
	190	return ret;
	191
	192	snd_soc_dapm_add_routes(codec, omap3pandora_out_map,
	193	ARRAY_SIZE(omap3pandora_out_map));
	194
	195	return snd_soc_dapm_sync(codec);
	196	}
	197
f0fba2ad	198	static int omap3pandora_in_init(struct snd_soc_pcm_runtime *rtd)
68fb7407	199	{
f0fba2ad	200	struct snd_soc_codec *codec = rtd->codec;
68fb7407 GI	201	int ret;
68fb7407 GI	202
8f008062 GI	203	/* Not comnnected */
	204	snd_soc_dapm_nc_pin(codec, "HSMIC");
	205	snd_soc_dapm_nc_pin(codec, "CARKITMIC");
	206	snd_soc_dapm_nc_pin(codec, "DIGIMIC0");
	207	snd_soc_dapm_nc_pin(codec, "DIGIMIC1");
7f185340	208
68fb7407 GI	209	ret = snd_soc_dapm_new_controls(codec, omap3pandora_in_dapm_widgets,
	210	ARRAY_SIZE(omap3pandora_in_dapm_widgets));
	211	if (ret < 0)
	212	return ret;
	213
	214	snd_soc_dapm_add_routes(codec, omap3pandora_in_map,
	215	ARRAY_SIZE(omap3pandora_in_map));
	216
	217	return snd_soc_dapm_sync(codec);
	218	}
	219
4b94dba0 GI	220	static struct snd_soc_ops omap3pandora_ops = {
4b94dba0 GI	221	.hw_params = omap3pandora_hw_params,
68fb7407 GI	222	};
	223
	224	/* Digital audio interface glue - connects codec <--> CPU */
	225	static struct snd_soc_dai_link omap3pandora_dai[] = {
	226	{
	227	.name = "PCM1773",
	228	.stream_name = "HiFi Out",
f0fba2ad LG	229	.cpu_dai_name = "omap-mcbsp-dai.1",
	230	.codec_dai_name = "twl4030-hifi",
	231	.platform_name = "omap-pcm-audio",
	232	.codec_name = "twl4030-codec",
4b94dba0	233	.ops = &omap3pandora_ops,
68fb7407 GI	234	.init = omap3pandora_out_init,
	235	}, {
	236	.name = "TWL4030",
	237	.stream_name = "Line/Mic In",
f0fba2ad LG	238	.cpu_dai_name = "omap-mcbsp-dai.3",
	239	.codec_dai_name = "twl4030-hifi",
	240	.platform_name = "omap-pcm-audio",
	241	.codec_name = "twl4030-codec",
4b94dba0	242	.ops = &omap3pandora_ops,
68fb7407 GI	243	.init = omap3pandora_in_init,
	244	}
	245	};
	246
	247	/* SoC card */
	248	static struct snd_soc_card snd_soc_card_omap3pandora = {
	249	.name = "omap3pandora",
68fb7407 GI	250	.dai_link = omap3pandora_dai,
	251	.num_links = ARRAY_SIZE(omap3pandora_dai),
	252	};
	253
68fb7407 GI	254	static struct platform_device *omap3pandora_snd_device;
	255
	256	static int __init omap3pandora_soc_init(void)
	257	{
	258	int ret;
	259
8f008062	260	if (!machine_is_omap3_pandora())
68fb7407	261	return -ENODEV;
8f008062	262
68fb7407 GI	263	pr_info("OMAP3 Pandora SoC init\n");
	264
	265	ret = gpio_request(OMAP3_PANDORA_DAC_POWER_GPIO, "dac_power");
	266	if (ret) {
	267	pr_err(PREFIX "Failed to get DAC power GPIO\n");
	268	return ret;
	269	}
	270
	271	ret = gpio_direction_output(OMAP3_PANDORA_DAC_POWER_GPIO, 0);
	272	if (ret) {
	273	pr_err(PREFIX "Failed to set DAC power GPIO direction\n");
	274	goto fail0;
	275	}
	276
	277	ret = gpio_request(OMAP3_PANDORA_AMP_POWER_GPIO, "amp_power");
	278	if (ret) {
	279	pr_err(PREFIX "Failed to get amp power GPIO\n");
	280	goto fail0;
	281	}
	282
	283	ret = gpio_direction_output(OMAP3_PANDORA_AMP_POWER_GPIO, 0);
	284	if (ret) {
	285	pr_err(PREFIX "Failed to set amp power GPIO direction\n");
	286	goto fail1;
	287	}
	288
	289	omap3pandora_snd_device = platform_device_alloc("soc-audio", -1);
	290	if (omap3pandora_snd_device == NULL) {
	291	pr_err(PREFIX "Platform device allocation failed\n");
	292	ret = -ENOMEM;
	293	goto fail1;
	294	}
	295
f0fba2ad	296	platform_set_drvdata(omap3pandora_snd_device, &snd_soc_card_omap3pandora);
68fb7407 GI	297
	298	ret = platform_device_add(omap3pandora_snd_device);
	299	if (ret) {
	300	pr_err(PREFIX "Unable to add platform device\n");
	301	goto fail2;
	302	}
	303
c50749de GI	304	omap3pandora_dac_reg = regulator_get(&omap3pandora_snd_device->dev, "vcc");
	305	if (IS_ERR(omap3pandora_dac_reg)) {
	306	pr_err(PREFIX "Failed to get DAC regulator from %s: %ld\n",
	307	dev_name(&omap3pandora_snd_device->dev),
	308	PTR_ERR(omap3pandora_dac_reg));
5c12d201	309	ret = PTR_ERR(omap3pandora_dac_reg);
c50749de GI	310	goto fail3;
	311	}
	312
68fb7407 GI	313	return 0;
68fb7407 GI	314
c50749de GI	315	fail3:
c50749de GI	316	platform_device_del(omap3pandora_snd_device);
68fb7407 GI	317	fail2:
	318	platform_device_put(omap3pandora_snd_device);
	319	fail1:
	320	gpio_free(OMAP3_PANDORA_AMP_POWER_GPIO);
	321	fail0:
	322	gpio_free(OMAP3_PANDORA_DAC_POWER_GPIO);
	323	return ret;
	324	}
	325	module_init(omap3pandora_soc_init);
	326
	327	static void __exit omap3pandora_soc_exit(void)
	328	{
c50749de	329	regulator_put(omap3pandora_dac_reg);
68fb7407 GI	330	platform_device_unregister(omap3pandora_snd_device);
	331	gpio_free(OMAP3_PANDORA_AMP_POWER_GPIO);
	332	gpio_free(OMAP3_PANDORA_DAC_POWER_GPIO);
	333	}
	334	module_exit(omap3pandora_soc_exit);
	335
	336	MODULE_AUTHOR("Grazvydas Ignotas <notasas@gmail.com>");
	337	MODULE_DESCRIPTION("ALSA SoC OMAP3 Pandora");
	338	MODULE_LICENSE("GPL");