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

#include <asm/mach-types.h>

#include "omap-mcbsp.h"
#include "omap-pcm.h"
#include "../codecs/twl4030.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_cmn_hw_params(struct snd_pcm_substream *substream,
	struct snd_pcm_hw_params *params, unsigned int fmt)
{
	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	struct snd_soc_dai *codec_dai = rtd->dai->codec_dai;
	struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
	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_out_hw_params(struct snd_pcm_substream *substream,
	struct snd_pcm_hw_params *params)
{
	return omap3pandora_cmn_hw_params(substream, params,
					  SND_SOC_DAIFMT_I2S |
					  SND_SOC_DAIFMT_IB_NF |
					  SND_SOC_DAIFMT_CBS_CFS);
}

static int omap3pandora_in_hw_params(struct snd_pcm_substream *substream,
	struct snd_pcm_hw_params *params)
{
	return omap3pandora_cmn_hw_params(substream, params,
					  SND_SOC_DAIFMT_I2S |
					  SND_SOC_DAIFMT_NB_NF |
					  SND_SOC_DAIFMT_CBS_CFS);
}

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_codec *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_codec *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_out_ops = {
	.hw_params = omap3pandora_out_hw_params,
};

static struct snd_soc_ops omap3pandora_in_ops = {
	.hw_params = omap3pandora_in_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 = &omap_mcbsp_dai[0],
		.codec_dai = &twl4030_dai[TWL4030_DAI_HIFI],
		.ops = &omap3pandora_out_ops,
		.init = omap3pandora_out_init,
	}, {
		.name = "TWL4030",
		.stream_name = "Line/Mic In",
		.cpu_dai = &omap_mcbsp_dai[1],
		.codec_dai = &twl4030_dai[TWL4030_DAI_HIFI],
		.ops = &omap3pandora_in_ops,
		.init = omap3pandora_in_init,
	}
};

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

/* Audio subsystem */
static struct snd_soc_device omap3pandora_snd_data = {
	.card = &snd_soc_card_omap3pandora,
	.codec_dev = &soc_codec_dev_twl4030,
};

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, &omap3pandora_snd_data);
	omap3pandora_snd_data.dev = &omap3pandora_snd_device->dev;
	*(unsigned int *)omap_mcbsp_dai[0].private_data = 1; /* McBSP2 */
	*(unsigned int *)omap_mcbsp_dai[1].private_data = 3; /* McBSP4 */

	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));
		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>
	34
	35	#include "omap-mcbsp.h"
	36	#include "omap-pcm.h"
	37	#include "../codecs/twl4030.h"
	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
9e5d86fe JN	46	static int omap3pandora_cmn_hw_params(struct snd_pcm_substream *substream,
9e5d86fe JN	47	struct snd_pcm_hw_params *params, unsigned int fmt)
68fb7407	48	{
9e5d86fe JN	49	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	50	struct snd_soc_dai *codec_dai = rtd->dai->codec_dai;
	51	struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
68fb7407 GI	52	int ret;
	53
	54	/* Set codec DAI configuration */
	55	ret = snd_soc_dai_set_fmt(codec_dai, fmt);
	56	if (ret < 0) {
	57	pr_err(PREFIX "can't set codec DAI configuration\n");
	58	return ret;
	59	}
	60
	61	/* Set cpu DAI configuration */
	62	ret = snd_soc_dai_set_fmt(cpu_dai, fmt);
	63	if (ret < 0) {
	64	pr_err(PREFIX "can't set cpu DAI configuration\n");
	65	return ret;
	66	}
	67
	68	/* Set the codec system clock for DAC and ADC */
	69	ret = snd_soc_dai_set_sysclk(codec_dai, 0, 26000000,
	70	SND_SOC_CLOCK_IN);
	71	if (ret < 0) {
	72	pr_err(PREFIX "can't set codec system clock\n");
	73	return ret;
	74	}
	75
	76	/* Set McBSP clock to external */
9e5d86fe JN	77	ret = snd_soc_dai_set_sysclk(cpu_dai, OMAP_MCBSP_SYSCLK_CLKS_EXT,
	78	256 * params_rate(params),
	79	SND_SOC_CLOCK_IN);
68fb7407 GI	80	if (ret < 0) {
	81	pr_err(PREFIX "can't set cpu system clock\n");
	82	return ret;
	83	}
	84
	85	ret = snd_soc_dai_set_clkdiv(cpu_dai, OMAP_MCBSP_CLKGDV, 8);
	86	if (ret < 0) {
	87	pr_err(PREFIX "can't set SRG clock divider\n");
	88	return ret;
	89	}
	90
	91	return 0;
	92	}
	93
	94	static int omap3pandora_out_hw_params(struct snd_pcm_substream *substream,
	95	struct snd_pcm_hw_params *params)
	96	{
9e5d86fe	97	return omap3pandora_cmn_hw_params(substream, params,
68fb7407 GI	98	SND_SOC_DAIFMT_I2S \|
	99	SND_SOC_DAIFMT_IB_NF \|
	100	SND_SOC_DAIFMT_CBS_CFS);
	101	}
	102
	103	static int omap3pandora_in_hw_params(struct snd_pcm_substream *substream,
	104	struct snd_pcm_hw_params *params)
	105	{
9e5d86fe	106	return omap3pandora_cmn_hw_params(substream, params,
68fb7407 GI	107	SND_SOC_DAIFMT_I2S \|
	108	SND_SOC_DAIFMT_NB_NF \|
	109	SND_SOC_DAIFMT_CBS_CFS);
	110	}
	111
c50749de	112	static int omap3pandora_dac_event(struct snd_soc_dapm_widget *w,
68fb7407 GI	113	struct snd_kcontrol *k, int event)
68fb7407 GI	114	{
c50749de GI	115	/*
	116	* The PCM1773 DAC datasheet requires 1ms delay between switching
	117	* VCC power on/off and /PD pin high/low
	118	*/
68fb7407	119	if (SND_SOC_DAPM_EVENT_ON(event)) {
c50749de GI	120	regulator_enable(omap3pandora_dac_reg);
c50749de GI	121	mdelay(1);
68fb7407	122	gpio_set_value(OMAP3_PANDORA_DAC_POWER_GPIO, 1);
68fb7407	123	} else {
68fb7407	124	gpio_set_value(OMAP3_PANDORA_DAC_POWER_GPIO, 0);
c50749de GI	125	mdelay(1);
c50749de GI	126	regulator_disable(omap3pandora_dac_reg);
68fb7407 GI	127	}
	128
	129	return 0;
	130	}
	131
c50749de GI	132	static int omap3pandora_hp_event(struct snd_soc_dapm_widget *w,
	133	struct snd_kcontrol *k, int event)
	134	{
	135	if (SND_SOC_DAPM_EVENT_ON(event))
	136	gpio_set_value(OMAP3_PANDORA_AMP_POWER_GPIO, 1);
	137	else
	138	gpio_set_value(OMAP3_PANDORA_AMP_POWER_GPIO, 0);
	139
	140	return 0;
	141	}
	142
68fb7407 GI	143	/*
	144	* Audio paths on Pandora board:
	145	*
	146	* \|O\| ---> PCM DAC +-> AMP -> Headphone Jack
	147	* \|M\| A +--------> Line Out
	148	* \|A\| <~~clk~~+
	149	* \|P\| <--- TWL4030 <--------- Line In and MICs
	150	*/
	151	static const struct snd_soc_dapm_widget omap3pandora_out_dapm_widgets[] = {
c50749de GI	152	SND_SOC_DAPM_DAC_E("PCM DAC", "HiFi Playback", SND_SOC_NOPM,
	153	0, 0, omap3pandora_dac_event,
	154	SND_SOC_DAPM_POST_PMU \| SND_SOC_DAPM_PRE_PMD),
68fb7407 GI	155	SND_SOC_DAPM_PGA_E("Headphone Amplifier", SND_SOC_NOPM,
	156	0, 0, NULL, 0, omap3pandora_hp_event,
	157	SND_SOC_DAPM_POST_PMU \| SND_SOC_DAPM_PRE_PMD),
	158	SND_SOC_DAPM_HP("Headphone Jack", NULL),
	159	SND_SOC_DAPM_LINE("Line Out", NULL),
	160	};
	161
	162	static const struct snd_soc_dapm_widget omap3pandora_in_dapm_widgets[] = {
8f008062	163	SND_SOC_DAPM_MIC("Mic (internal)", NULL),
68fb7407 GI	164	SND_SOC_DAPM_MIC("Mic (external)", NULL),
	165	SND_SOC_DAPM_LINE("Line In", NULL),
	166	};
	167
	168	static const struct snd_soc_dapm_route omap3pandora_out_map[] = {
3b9447fb	169	{"PCM DAC", NULL, "APLL Enable"},
68fb7407 GI	170	{"Headphone Amplifier", NULL, "PCM DAC"},
	171	{"Line Out", NULL, "PCM DAC"},
	172	{"Headphone Jack", NULL, "Headphone Amplifier"},
	173	};
	174
	175	static const struct snd_soc_dapm_route omap3pandora_in_map[] = {
8f008062 GI	176	{"AUXL", NULL, "Line In"},
	177	{"AUXR", NULL, "Line In"},
	178
	179	{"MAINMIC", NULL, "Mic Bias 1"},
	180	{"Mic Bias 1", NULL, "Mic (internal)"},
	181
	182	{"SUBMIC", NULL, "Mic Bias 2"},
	183	{"Mic Bias 2", NULL, "Mic (external)"},
68fb7407 GI	184	};
	185
	186	static int omap3pandora_out_init(struct snd_soc_codec *codec)
	187	{
	188	int ret;
	189
8f008062	190	/* All TWL4030 output pins are floating */
8f008062 GI	191	snd_soc_dapm_nc_pin(codec, "EARPIECE");
	192	snd_soc_dapm_nc_pin(codec, "PREDRIVEL");
	193	snd_soc_dapm_nc_pin(codec, "PREDRIVER");
	194	snd_soc_dapm_nc_pin(codec, "HSOL");
	195	snd_soc_dapm_nc_pin(codec, "HSOR");
	196	snd_soc_dapm_nc_pin(codec, "CARKITL");
	197	snd_soc_dapm_nc_pin(codec, "CARKITR");
	198	snd_soc_dapm_nc_pin(codec, "HFL");
	199	snd_soc_dapm_nc_pin(codec, "HFR");
f3dd7041	200	snd_soc_dapm_nc_pin(codec, "VIBRA");
8f008062	201
68fb7407 GI	202	ret = snd_soc_dapm_new_controls(codec, omap3pandora_out_dapm_widgets,
	203	ARRAY_SIZE(omap3pandora_out_dapm_widgets));
	204	if (ret < 0)
	205	return ret;
	206
	207	snd_soc_dapm_add_routes(codec, omap3pandora_out_map,
	208	ARRAY_SIZE(omap3pandora_out_map));
	209
	210	return snd_soc_dapm_sync(codec);
	211	}
	212
	213	static int omap3pandora_in_init(struct snd_soc_codec *codec)
	214	{
	215	int ret;
	216
8f008062 GI	217	/* Not comnnected */
	218	snd_soc_dapm_nc_pin(codec, "HSMIC");
	219	snd_soc_dapm_nc_pin(codec, "CARKITMIC");
	220	snd_soc_dapm_nc_pin(codec, "DIGIMIC0");
	221	snd_soc_dapm_nc_pin(codec, "DIGIMIC1");
7f185340	222
68fb7407 GI	223	ret = snd_soc_dapm_new_controls(codec, omap3pandora_in_dapm_widgets,
	224	ARRAY_SIZE(omap3pandora_in_dapm_widgets));
	225	if (ret < 0)
	226	return ret;
	227
	228	snd_soc_dapm_add_routes(codec, omap3pandora_in_map,
	229	ARRAY_SIZE(omap3pandora_in_map));
	230
	231	return snd_soc_dapm_sync(codec);
	232	}
	233
	234	static struct snd_soc_ops omap3pandora_out_ops = {
	235	.hw_params = omap3pandora_out_hw_params,
	236	};
	237
	238	static struct snd_soc_ops omap3pandora_in_ops = {
	239	.hw_params = omap3pandora_in_hw_params,
	240	};
	241
	242	/* Digital audio interface glue - connects codec <--> CPU */
	243	static struct snd_soc_dai_link omap3pandora_dai[] = {
	244	{
	245	.name = "PCM1773",
	246	.stream_name = "HiFi Out",
	247	.cpu_dai = &omap_mcbsp_dai[0],
7154b3e8	248	.codec_dai = &twl4030_dai[TWL4030_DAI_HIFI],
68fb7407 GI	249	.ops = &omap3pandora_out_ops,
	250	.init = omap3pandora_out_init,
	251	}, {
	252	.name = "TWL4030",
	253	.stream_name = "Line/Mic In",
	254	.cpu_dai = &omap_mcbsp_dai[1],
7154b3e8	255	.codec_dai = &twl4030_dai[TWL4030_DAI_HIFI],
68fb7407 GI	256	.ops = &omap3pandora_in_ops,
	257	.init = omap3pandora_in_init,
	258	}
	259	};
	260
	261	/* SoC card */
	262	static struct snd_soc_card snd_soc_card_omap3pandora = {
	263	.name = "omap3pandora",
	264	.platform = &omap_soc_platform,
	265	.dai_link = omap3pandora_dai,
	266	.num_links = ARRAY_SIZE(omap3pandora_dai),
	267	};
	268
	269	/* Audio subsystem */
	270	static struct snd_soc_device omap3pandora_snd_data = {
	271	.card = &snd_soc_card_omap3pandora,
	272	.codec_dev = &soc_codec_dev_twl4030,
	273	};
	274
	275	static struct platform_device *omap3pandora_snd_device;
	276
	277	static int __init omap3pandora_soc_init(void)
	278	{
	279	int ret;
	280
8f008062	281	if (!machine_is_omap3_pandora())
68fb7407	282	return -ENODEV;
8f008062	283
68fb7407 GI	284	pr_info("OMAP3 Pandora SoC init\n");
	285
	286	ret = gpio_request(OMAP3_PANDORA_DAC_POWER_GPIO, "dac_power");
	287	if (ret) {
	288	pr_err(PREFIX "Failed to get DAC power GPIO\n");
	289	return ret;
	290	}
	291
	292	ret = gpio_direction_output(OMAP3_PANDORA_DAC_POWER_GPIO, 0);
	293	if (ret) {
	294	pr_err(PREFIX "Failed to set DAC power GPIO direction\n");
	295	goto fail0;
	296	}
	297
	298	ret = gpio_request(OMAP3_PANDORA_AMP_POWER_GPIO, "amp_power");
	299	if (ret) {
	300	pr_err(PREFIX "Failed to get amp power GPIO\n");
	301	goto fail0;
	302	}
	303
	304	ret = gpio_direction_output(OMAP3_PANDORA_AMP_POWER_GPIO, 0);
	305	if (ret) {
	306	pr_err(PREFIX "Failed to set amp power GPIO direction\n");
	307	goto fail1;
	308	}
	309
	310	omap3pandora_snd_device = platform_device_alloc("soc-audio", -1);
	311	if (omap3pandora_snd_device == NULL) {
	312	pr_err(PREFIX "Platform device allocation failed\n");
	313	ret = -ENOMEM;
	314	goto fail1;
	315	}
	316
	317	platform_set_drvdata(omap3pandora_snd_device, &omap3pandora_snd_data);
	318	omap3pandora_snd_data.dev = &omap3pandora_snd_device->dev;
	319	(unsigned int )omap_mcbsp_dai[0].private_data = 1; /* McBSP2 */
	320	(unsigned int )omap_mcbsp_dai[1].private_data = 3; /* McBSP4 */
	321
	322	ret = platform_device_add(omap3pandora_snd_device);
	323	if (ret) {
	324	pr_err(PREFIX "Unable to add platform device\n");
	325	goto fail2;
	326	}
	327
c50749de GI	328	omap3pandora_dac_reg = regulator_get(&omap3pandora_snd_device->dev, "vcc");
	329	if (IS_ERR(omap3pandora_dac_reg)) {
	330	pr_err(PREFIX "Failed to get DAC regulator from %s: %ld\n",
	331	dev_name(&omap3pandora_snd_device->dev),
	332	PTR_ERR(omap3pandora_dac_reg));
	333	goto fail3;
	334	}
	335
68fb7407 GI	336	return 0;
68fb7407 GI	337
c50749de GI	338	fail3:
c50749de GI	339	platform_device_del(omap3pandora_snd_device);
68fb7407 GI	340	fail2:
	341	platform_device_put(omap3pandora_snd_device);
	342	fail1:
	343	gpio_free(OMAP3_PANDORA_AMP_POWER_GPIO);
	344	fail0:
	345	gpio_free(OMAP3_PANDORA_DAC_POWER_GPIO);
	346	return ret;
	347	}
	348	module_init(omap3pandora_soc_init);
	349
	350	static void __exit omap3pandora_soc_exit(void)
	351	{
c50749de	352	regulator_put(omap3pandora_dac_reg);
68fb7407 GI	353	platform_device_unregister(omap3pandora_snd_device);
	354	gpio_free(OMAP3_PANDORA_AMP_POWER_GPIO);
	355	gpio_free(OMAP3_PANDORA_DAC_POWER_GPIO);
	356	}
	357	module_exit(omap3pandora_soc_exit);
	358
	359	MODULE_AUTHOR("Grazvydas Ignotas <notasas@gmail.com>");
	360	MODULE_DESCRIPTION("ALSA SoC OMAP3 Pandora");
	361	MODULE_LICENSE("GPL");