[mirror_ubuntu-bionic-kernel.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 <linux/module.h>

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

#include <asm/mach-types.h>
#include <linux/platform_data/asoc-ti-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 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 (internal)"},
	{"Mic (internal)", NULL, "Mic Bias 1"},

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

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

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

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

	return snd_soc_dapm_add_routes(dapm, omap3pandora_out_map,
		ARRAY_SIZE(omap3pandora_out_map));
}

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

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

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

	return snd_soc_dapm_add_routes(dapm, omap3pandora_in_map,
		ARRAY_SIZE(omap3pandora_in_map));
}

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.2",
		.codec_dai_name = "twl4030-hifi",
		.platform_name = "omap-pcm-audio",
		.codec_name = "twl4030-codec",
		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
			   SND_SOC_DAIFMT_CBS_CFS,
		.ops = &omap3pandora_ops,
		.init = omap3pandora_out_init,
	}, {
		.name = "TWL4030",
		.stream_name = "Line/Mic In",
		.cpu_dai_name = "omap-mcbsp.4",
		.codec_dai_name = "twl4030-hifi",
		.platform_name = "omap-pcm-audio",
		.codec_name = "twl4030-codec",
		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
			   SND_SOC_DAIFMT_CBS_CFS,
		.ops = &omap3pandora_ops,
		.init = omap3pandora_in_init,
	}
};

/* SoC card */
static struct snd_soc_card snd_soc_card_omap3pandora = {
	.name = "omap3pandora",
	.owner = THIS_MODULE,
	.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>
da155d5b	27	#include <linux/module.h>
68fb7407 GI	28
	29	#include <sound/core.h>
	30	#include <sound/pcm.h>
	31	#include <sound/soc.h>
68fb7407 GI	32
68fb7407 GI	33	#include <asm/mach-types.h>
2203747c	34	#include <linux/platform_data/asoc-ti-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;
68fb7407 GI	52	int ret;
68fb7407 GI	53
68fb7407 GI	54	/* Set the codec system clock for DAC and ADC */
	55	ret = snd_soc_dai_set_sysclk(codec_dai, 0, 26000000,
	56	SND_SOC_CLOCK_IN);
	57	if (ret < 0) {
	58	pr_err(PREFIX "can't set codec system clock\n");
	59	return ret;
	60	}
	61
	62	/* Set McBSP clock to external */
9e5d86fe JN	63	ret = snd_soc_dai_set_sysclk(cpu_dai, OMAP_MCBSP_SYSCLK_CLKS_EXT,
	64	256 * params_rate(params),
	65	SND_SOC_CLOCK_IN);
68fb7407 GI	66	if (ret < 0) {
	67	pr_err(PREFIX "can't set cpu system clock\n");
	68	return ret;
	69	}
	70
	71	ret = snd_soc_dai_set_clkdiv(cpu_dai, OMAP_MCBSP_CLKGDV, 8);
	72	if (ret < 0) {
	73	pr_err(PREFIX "can't set SRG clock divider\n");
	74	return ret;
	75	}
	76
	77	return 0;
	78	}
	79
c50749de	80	static int omap3pandora_dac_event(struct snd_soc_dapm_widget *w,
68fb7407 GI	81	struct snd_kcontrol *k, int event)
68fb7407 GI	82	{
c50749de GI	83	/*
	84	* The PCM1773 DAC datasheet requires 1ms delay between switching
	85	* VCC power on/off and /PD pin high/low
	86	*/
68fb7407	87	if (SND_SOC_DAPM_EVENT_ON(event)) {
c50749de GI	88	regulator_enable(omap3pandora_dac_reg);
c50749de GI	89	mdelay(1);
68fb7407	90	gpio_set_value(OMAP3_PANDORA_DAC_POWER_GPIO, 1);
68fb7407	91	} else {
68fb7407	92	gpio_set_value(OMAP3_PANDORA_DAC_POWER_GPIO, 0);
c50749de GI	93	mdelay(1);
c50749de GI	94	regulator_disable(omap3pandora_dac_reg);
68fb7407 GI	95	}
	96
	97	return 0;
	98	}
	99
c50749de GI	100	static int omap3pandora_hp_event(struct snd_soc_dapm_widget *w,
	101	struct snd_kcontrol *k, int event)
	102	{
	103	if (SND_SOC_DAPM_EVENT_ON(event))
	104	gpio_set_value(OMAP3_PANDORA_AMP_POWER_GPIO, 1);
	105	else
	106	gpio_set_value(OMAP3_PANDORA_AMP_POWER_GPIO, 0);
	107
	108	return 0;
	109	}
	110
68fb7407 GI	111	/*
	112	* Audio paths on Pandora board:
	113	*
	114	* \|O\| ---> PCM DAC +-> AMP -> Headphone Jack
	115	* \|M\| A +--------> Line Out
	116	* \|A\| <~~clk~~+
	117	* \|P\| <--- TWL4030 <--------- Line In and MICs
	118	*/
	119	static const struct snd_soc_dapm_widget omap3pandora_out_dapm_widgets[] = {
c50749de GI	120	SND_SOC_DAPM_DAC_E("PCM DAC", "HiFi Playback", SND_SOC_NOPM,
	121	0, 0, omap3pandora_dac_event,
	122	SND_SOC_DAPM_POST_PMU \| SND_SOC_DAPM_PRE_PMD),
68fb7407 GI	123	SND_SOC_DAPM_PGA_E("Headphone Amplifier", SND_SOC_NOPM,
	124	0, 0, NULL, 0, omap3pandora_hp_event,
	125	SND_SOC_DAPM_POST_PMU \| SND_SOC_DAPM_PRE_PMD),
	126	SND_SOC_DAPM_HP("Headphone Jack", NULL),
	127	SND_SOC_DAPM_LINE("Line Out", NULL),
	128	};
	129
	130	static const struct snd_soc_dapm_widget omap3pandora_in_dapm_widgets[] = {
8f008062	131	SND_SOC_DAPM_MIC("Mic (internal)", NULL),
68fb7407 GI	132	SND_SOC_DAPM_MIC("Mic (external)", NULL),
	133	SND_SOC_DAPM_LINE("Line In", NULL),
	134	};
	135
	136	static const struct snd_soc_dapm_route omap3pandora_out_map[] = {
3b9447fb	137	{"PCM DAC", NULL, "APLL Enable"},
68fb7407 GI	138	{"Headphone Amplifier", NULL, "PCM DAC"},
	139	{"Line Out", NULL, "PCM DAC"},
	140	{"Headphone Jack", NULL, "Headphone Amplifier"},
	141	};
	142
	143	static const struct snd_soc_dapm_route omap3pandora_in_map[] = {
8f008062 GI	144	{"AUXL", NULL, "Line In"},
	145	{"AUXR", NULL, "Line In"},
	146
e04d6e55 PU	147	{"MAINMIC", NULL, "Mic (internal)"},
e04d6e55 PU	148	{"Mic (internal)", NULL, "Mic Bias 1"},
8f008062	149
e04d6e55 PU	150	{"SUBMIC", NULL, "Mic (external)"},
e04d6e55 PU	151	{"Mic (external)", NULL, "Mic Bias 2"},
68fb7407 GI	152	};
68fb7407 GI	153
f0fba2ad	154	static int omap3pandora_out_init(struct snd_soc_pcm_runtime *rtd)
68fb7407	155	{
f0fba2ad	156	struct snd_soc_codec *codec = rtd->codec;
ce6120cc	157	struct snd_soc_dapm_context *dapm = &codec->dapm;
68fb7407 GI	158	int ret;
68fb7407 GI	159
8f008062	160	/* All TWL4030 output pins are floating */
ce6120cc LG	161	snd_soc_dapm_nc_pin(dapm, "EARPIECE");
	162	snd_soc_dapm_nc_pin(dapm, "PREDRIVEL");
	163	snd_soc_dapm_nc_pin(dapm, "PREDRIVER");
	164	snd_soc_dapm_nc_pin(dapm, "HSOL");
	165	snd_soc_dapm_nc_pin(dapm, "HSOR");
	166	snd_soc_dapm_nc_pin(dapm, "CARKITL");
	167	snd_soc_dapm_nc_pin(dapm, "CARKITR");
	168	snd_soc_dapm_nc_pin(dapm, "HFL");
	169	snd_soc_dapm_nc_pin(dapm, "HFR");
	170	snd_soc_dapm_nc_pin(dapm, "VIBRA");
	171
	172	ret = snd_soc_dapm_new_controls(dapm, omap3pandora_out_dapm_widgets,
68fb7407 GI	173	ARRAY_SIZE(omap3pandora_out_dapm_widgets));
	174	if (ret < 0)
	175	return ret;
	176
cb424877	177	return snd_soc_dapm_add_routes(dapm, omap3pandora_out_map,
68fb7407	178	ARRAY_SIZE(omap3pandora_out_map));
68fb7407 GI	179	}
68fb7407 GI	180
f0fba2ad	181	static int omap3pandora_in_init(struct snd_soc_pcm_runtime *rtd)
68fb7407	182	{
f0fba2ad	183	struct snd_soc_codec *codec = rtd->codec;
ce6120cc	184	struct snd_soc_dapm_context *dapm = &codec->dapm;
68fb7407 GI	185	int ret;
68fb7407 GI	186
8f008062	187	/* Not comnnected */
ce6120cc LG	188	snd_soc_dapm_nc_pin(dapm, "HSMIC");
	189	snd_soc_dapm_nc_pin(dapm, "CARKITMIC");
	190	snd_soc_dapm_nc_pin(dapm, "DIGIMIC0");
	191	snd_soc_dapm_nc_pin(dapm, "DIGIMIC1");
7f185340	192
ce6120cc	193	ret = snd_soc_dapm_new_controls(dapm, omap3pandora_in_dapm_widgets,
68fb7407 GI	194	ARRAY_SIZE(omap3pandora_in_dapm_widgets));
	195	if (ret < 0)
	196	return ret;
	197
cb424877	198	return snd_soc_dapm_add_routes(dapm, omap3pandora_in_map,
68fb7407	199	ARRAY_SIZE(omap3pandora_in_map));
68fb7407 GI	200	}
68fb7407 GI	201
4b94dba0 GI	202	static struct snd_soc_ops omap3pandora_ops = {
4b94dba0 GI	203	.hw_params = omap3pandora_hw_params,
68fb7407 GI	204	};
	205
	206	/* Digital audio interface glue - connects codec <--> CPU */
	207	static struct snd_soc_dai_link omap3pandora_dai[] = {
	208	{
	209	.name = "PCM1773",
	210	.stream_name = "HiFi Out",
45656b44	211	.cpu_dai_name = "omap-mcbsp.2",
f0fba2ad LG	212	.codec_dai_name = "twl4030-hifi",
	213	.platform_name = "omap-pcm-audio",
	214	.codec_name = "twl4030-codec",
cf9feff2 JN	215	.dai_fmt = SND_SOC_DAIFMT_I2S \| SND_SOC_DAIFMT_NB_NF \|
cf9feff2 JN	216	SND_SOC_DAIFMT_CBS_CFS,
4b94dba0	217	.ops = &omap3pandora_ops,
68fb7407 GI	218	.init = omap3pandora_out_init,
	219	}, {
	220	.name = "TWL4030",
	221	.stream_name = "Line/Mic In",
45656b44	222	.cpu_dai_name = "omap-mcbsp.4",
f0fba2ad LG	223	.codec_dai_name = "twl4030-hifi",
	224	.platform_name = "omap-pcm-audio",
	225	.codec_name = "twl4030-codec",
cf9feff2 JN	226	.dai_fmt = SND_SOC_DAIFMT_I2S \| SND_SOC_DAIFMT_NB_NF \|
cf9feff2 JN	227	SND_SOC_DAIFMT_CBS_CFS,
4b94dba0	228	.ops = &omap3pandora_ops,
68fb7407 GI	229	.init = omap3pandora_in_init,
	230	}
	231	};
	232
	233	/* SoC card */
	234	static struct snd_soc_card snd_soc_card_omap3pandora = {
	235	.name = "omap3pandora",
b425b884	236	.owner = THIS_MODULE,
68fb7407 GI	237	.dai_link = omap3pandora_dai,
	238	.num_links = ARRAY_SIZE(omap3pandora_dai),
	239	};
	240
68fb7407 GI	241	static struct platform_device *omap3pandora_snd_device;
	242
	243	static int __init omap3pandora_soc_init(void)
	244	{
	245	int ret;
	246
8f008062	247	if (!machine_is_omap3_pandora())
68fb7407	248	return -ENODEV;
8f008062	249
68fb7407 GI	250	pr_info("OMAP3 Pandora SoC init\n");
	251
	252	ret = gpio_request(OMAP3_PANDORA_DAC_POWER_GPIO, "dac_power");
	253	if (ret) {
	254	pr_err(PREFIX "Failed to get DAC power GPIO\n");
	255	return ret;
	256	}
	257
	258	ret = gpio_direction_output(OMAP3_PANDORA_DAC_POWER_GPIO, 0);
	259	if (ret) {
	260	pr_err(PREFIX "Failed to set DAC power GPIO direction\n");
	261	goto fail0;
	262	}
	263
	264	ret = gpio_request(OMAP3_PANDORA_AMP_POWER_GPIO, "amp_power");
	265	if (ret) {
	266	pr_err(PREFIX "Failed to get amp power GPIO\n");
	267	goto fail0;
	268	}
	269
	270	ret = gpio_direction_output(OMAP3_PANDORA_AMP_POWER_GPIO, 0);
	271	if (ret) {
	272	pr_err(PREFIX "Failed to set amp power GPIO direction\n");
	273	goto fail1;
	274	}
	275
	276	omap3pandora_snd_device = platform_device_alloc("soc-audio", -1);
	277	if (omap3pandora_snd_device == NULL) {
	278	pr_err(PREFIX "Platform device allocation failed\n");
	279	ret = -ENOMEM;
	280	goto fail1;
	281	}
	282
f0fba2ad	283	platform_set_drvdata(omap3pandora_snd_device, &snd_soc_card_omap3pandora);
68fb7407 GI	284
	285	ret = platform_device_add(omap3pandora_snd_device);
	286	if (ret) {
	287	pr_err(PREFIX "Unable to add platform device\n");
	288	goto fail2;
	289	}
	290
c50749de GI	291	omap3pandora_dac_reg = regulator_get(&omap3pandora_snd_device->dev, "vcc");
	292	if (IS_ERR(omap3pandora_dac_reg)) {
	293	pr_err(PREFIX "Failed to get DAC regulator from %s: %ld\n",
	294	dev_name(&omap3pandora_snd_device->dev),
	295	PTR_ERR(omap3pandora_dac_reg));
5c12d201	296	ret = PTR_ERR(omap3pandora_dac_reg);
c50749de GI	297	goto fail3;
	298	}
	299
68fb7407 GI	300	return 0;
68fb7407 GI	301
c50749de GI	302	fail3:
c50749de GI	303	platform_device_del(omap3pandora_snd_device);
68fb7407 GI	304	fail2:
	305	platform_device_put(omap3pandora_snd_device);
	306	fail1:
	307	gpio_free(OMAP3_PANDORA_AMP_POWER_GPIO);
	308	fail0:
	309	gpio_free(OMAP3_PANDORA_DAC_POWER_GPIO);
	310	return ret;
	311	}
	312	module_init(omap3pandora_soc_init);
	313
	314	static void __exit omap3pandora_soc_exit(void)
	315	{
c50749de	316	regulator_put(omap3pandora_dac_reg);
68fb7407 GI	317	platform_device_unregister(omap3pandora_snd_device);
	318	gpio_free(OMAP3_PANDORA_AMP_POWER_GPIO);
	319	gpio_free(OMAP3_PANDORA_DAC_POWER_GPIO);
	320	}
	321	module_exit(omap3pandora_soc_exit);
	322
	323	MODULE_AUTHOR("Grazvydas Ignotas <notasas@gmail.com>");
	324	MODULE_DESCRIPTION("ALSA SoC OMAP3 Pandora");
	325	MODULE_LICENSE("GPL");