[deliverable/linux.git] / sound / soc / tegra / harmony.c

/*
 * harmony.c - Harmony machine ASoC driver
 *
 * Author: Stephen Warren <swarren@nvidia.com>
 * Copyright (C) 2010-2011 - NVIDIA, Inc.
 *
 * Based on code copyright/by:
 *
 * (c) 2009, 2010 Nvidia Graphics Pvt. Ltd.
 *
 * Copyright 2007 Wolfson Microelectronics PLC.
 * Author: Graeme Gregory
 *         graeme.gregory@wolfsonmicro.com or linux@wolfsonmicro.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 <asm/mach-types.h>

#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/gpio.h>

#include <mach/harmony_audio.h>

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

#include "tegra_das.h"
#include "tegra_i2s.h"
#include "tegra_pcm.h"
#include "tegra_asoc_utils.h"

#define DRV_NAME "tegra-snd-harmony"

struct tegra_harmony {
	struct tegra_asoc_utils_data util_data;
	struct harmony_audio_platform_data *pdata;
	int gpio_spkr_en_requested;
};

static int harmony_asoc_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;
	struct snd_soc_codec *codec = rtd->codec;
	struct snd_soc_card *card = codec->card;
	struct tegra_harmony *harmony = snd_soc_card_get_drvdata(card);
	int srate, mclk, mclk_change;
	int err;

	srate = params_rate(params);
	switch (srate) {
	case 64000:
	case 88200:
	case 96000:
		mclk = 128 * srate;
		break;
	default:
		mclk = 256 * srate;
		break;
	}
	/* FIXME: Codec only requires >= 3MHz if OSR==0 */
	while (mclk < 6000000)
		mclk *= 2;

	err = tegra_asoc_utils_set_rate(&harmony->util_data, srate, mclk,
					&mclk_change);
	if (err < 0) {
		dev_err(card->dev, "Can't configure clocks\n");
		return err;
	}

	err = snd_soc_dai_set_fmt(codec_dai,
					SND_SOC_DAIFMT_I2S |
					SND_SOC_DAIFMT_NB_NF |
					SND_SOC_DAIFMT_CBS_CFS);
	if (err < 0) {
		dev_err(card->dev, "codec_dai fmt not set\n");
		return err;
	}

	err = snd_soc_dai_set_fmt(cpu_dai,
					SND_SOC_DAIFMT_I2S |
					SND_SOC_DAIFMT_NB_NF |
					SND_SOC_DAIFMT_CBS_CFS);
	if (err < 0) {
		dev_err(card->dev, "cpu_dai fmt not set\n");
		return err;
	}

	if (mclk_change) {
		err = snd_soc_dai_set_sysclk(codec_dai, 0, mclk,
					     SND_SOC_CLOCK_IN);
		if (err < 0) {
			dev_err(card->dev, "codec_dai clock not set\n");
			return err;
		}
	}

	return 0;
}

static struct snd_soc_ops harmony_asoc_ops = {
	.hw_params = harmony_asoc_hw_params,
};

static struct snd_soc_jack harmony_hp_jack;

static struct snd_soc_jack_pin harmony_hp_jack_pins[] = {
	{
		.pin = "Headphone Jack",
		.mask = SND_JACK_HEADPHONE,
	},
};

static struct snd_soc_jack_gpio harmony_hp_jack_gpios[] = {
	{
		.name = "headphone detect",
		.report = SND_JACK_HEADPHONE,
		.debounce_time = 150,
		.invert = 1,
	}
};

static int harmony_event_int_spk(struct snd_soc_dapm_widget *w,
					struct snd_kcontrol *k, int event)
{
	struct snd_soc_codec *codec = w->codec;
	struct snd_soc_card *card = codec->card;
	struct tegra_harmony *harmony = snd_soc_card_get_drvdata(card);
	struct harmony_audio_platform_data *pdata = harmony->pdata;

	gpio_set_value_cansleep(pdata->gpio_spkr_en,
				SND_SOC_DAPM_EVENT_ON(event));

	return 0;
}

static const struct snd_soc_dapm_widget harmony_dapm_widgets[] = {
	SND_SOC_DAPM_SPK("Int Spk", harmony_event_int_spk),
	SND_SOC_DAPM_HP("Headphone Jack", NULL),
	SND_SOC_DAPM_MIC("Mic Jack", NULL),
};

static const struct snd_soc_dapm_route harmony_audio_map[] = {
	{"Headphone Jack", NULL, "HPOUTR"},
	{"Headphone Jack", NULL, "HPOUTL"},
	{"Int Spk", NULL, "ROP"},
	{"Int Spk", NULL, "RON"},
	{"Int Spk", NULL, "LOP"},
	{"Int Spk", NULL, "LON"},
	{"Mic Bias", NULL, "Mic Jack"},
	{"IN1L", NULL, "Mic Bias"},
};

static const struct snd_kcontrol_new harmony_controls[] = {
	SOC_DAPM_PIN_SWITCH("Int Spk"),
};

static int harmony_asoc_init(struct snd_soc_pcm_runtime *rtd)
{
	struct snd_soc_codec *codec = rtd->codec;
	struct snd_soc_dapm_context *dapm = &codec->dapm;
	struct snd_soc_card *card = codec->card;
	struct tegra_harmony *harmony = snd_soc_card_get_drvdata(card);
	struct harmony_audio_platform_data *pdata = harmony->pdata;
	int ret;

	ret = gpio_request(pdata->gpio_spkr_en, "spkr_en");
	if (ret) {
		dev_err(card->dev, "cannot get spkr_en gpio\n");
		return ret;
	}
	harmony->gpio_spkr_en_requested = 1;

	gpio_direction_output(pdata->gpio_spkr_en, 0);

	ret = snd_soc_add_controls(codec, harmony_controls,
				   ARRAY_SIZE(harmony_controls));
	if (ret < 0)
		return ret;

	snd_soc_dapm_new_controls(dapm, harmony_dapm_widgets,
					ARRAY_SIZE(harmony_dapm_widgets));

	snd_soc_dapm_add_routes(dapm, harmony_audio_map,
				ARRAY_SIZE(harmony_audio_map));

	snd_soc_dapm_enable_pin(dapm, "Mic Jack");
	snd_soc_dapm_sync(dapm);

	harmony_hp_jack_gpios[0].gpio = pdata->gpio_hp_det;
	snd_soc_jack_new(codec, "Headphone Jack", SND_JACK_HEADPHONE,
			 &harmony_hp_jack);
	snd_soc_jack_add_pins(&harmony_hp_jack,
			      ARRAY_SIZE(harmony_hp_jack_pins),
			      harmony_hp_jack_pins);
	snd_soc_jack_add_gpios(&harmony_hp_jack,
			       ARRAY_SIZE(harmony_hp_jack_gpios),
			       harmony_hp_jack_gpios);

	return 0;
}

static struct snd_soc_dai_link harmony_wm8903_dai = {
	.name = "WM8903",
	.stream_name = "WM8903 PCM",
	.codec_name = "wm8903.0-001a",
	.platform_name = "tegra-pcm-audio",
	.cpu_dai_name = "tegra-i2s.0",
	.codec_dai_name = "wm8903-hifi",
	.init = harmony_asoc_init,
	.ops = &harmony_asoc_ops,
};

static struct snd_soc_card snd_soc_harmony = {
	.name = "tegra-harmony",
	.dai_link = &harmony_wm8903_dai,
	.num_links = 1,
};

static __devinit int tegra_snd_harmony_probe(struct platform_device *pdev)
{
	struct snd_soc_card *card = &snd_soc_harmony;
	struct tegra_harmony *harmony;
	struct harmony_audio_platform_data *pdata;
	int ret;

	if (!machine_is_harmony()) {
		dev_err(&pdev->dev, "Not running on Tegra Harmony!\n");
		return -ENODEV;
	}

	pdata = pdev->dev.platform_data;
	if (!pdata) {
		dev_err(&pdev->dev, "no platform data supplied\n");
		return -EINVAL;
	}

	harmony = kzalloc(sizeof(struct tegra_harmony), GFP_KERNEL);
	if (!harmony) {
		dev_err(&pdev->dev, "Can't allocate tegra_harmony\n");
		return -ENOMEM;
	}

	harmony->pdata = pdata;

	ret = tegra_asoc_utils_init(&harmony->util_data, &pdev->dev);
	if (ret)
		goto err_free_harmony;

	card->dev = &pdev->dev;
	platform_set_drvdata(pdev, card);
	snd_soc_card_set_drvdata(card, harmony);

	ret = snd_soc_register_card(card);
	if (ret) {
		dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n",
			ret);
		goto err_clear_drvdata;
	}

	return 0;

err_clear_drvdata:
	snd_soc_card_set_drvdata(card, NULL);
	platform_set_drvdata(pdev, NULL);
	card->dev = NULL;
	tegra_asoc_utils_fini(&harmony->util_data);
err_free_harmony:
	kfree(harmony);
	return ret;
}

static int __devexit tegra_snd_harmony_remove(struct platform_device *pdev)
{
	struct snd_soc_card *card = platform_get_drvdata(pdev);
	struct tegra_harmony *harmony = snd_soc_card_get_drvdata(card);
	struct harmony_audio_platform_data *pdata = harmony->pdata;

	snd_soc_unregister_card(card);

	snd_soc_card_set_drvdata(card, NULL);
	platform_set_drvdata(pdev, NULL);
	card->dev = NULL;

	tegra_asoc_utils_fini(&harmony->util_data);

	if (harmony->gpio_spkr_en_requested)
		gpio_free(pdata->gpio_spkr_en);

	kfree(harmony);

	return 0;
}

static struct platform_driver tegra_snd_harmony_driver = {
	.driver = {
		.name = DRV_NAME,
		.owner = THIS_MODULE,
	},
	.probe = tegra_snd_harmony_probe,
	.remove = __devexit_p(tegra_snd_harmony_remove),
};

static int __init snd_tegra_harmony_init(void)
{
	return platform_driver_register(&tegra_snd_harmony_driver);
}
module_init(snd_tegra_harmony_init);

static void __exit snd_tegra_harmony_exit(void)
{
	platform_driver_unregister(&tegra_snd_harmony_driver);
}
module_exit(snd_tegra_harmony_exit);

MODULE_AUTHOR("Stephen Warren <swarren@nvidia.com>");
MODULE_DESCRIPTION("Harmony machine ASoC driver");
MODULE_LICENSE("GPL");
Commit	Line	Data
a8bf1ba1 SW	1	/*
	2	* harmony.c - Harmony machine ASoC driver
	3	*
	4	* Author: Stephen Warren <swarren@nvidia.com>
72de2b1a	5	* Copyright (C) 2010-2011 - NVIDIA, Inc.
a8bf1ba1 SW	6	*
	7	* Based on code copyright/by:
	8	*
	9	* (c) 2009, 2010 Nvidia Graphics Pvt. Ltd.
	10	*
	11	* Copyright 2007 Wolfson Microelectronics PLC.
	12	* Author: Graeme Gregory
	13	* graeme.gregory@wolfsonmicro.com or linux@wolfsonmicro.com
	14	*
	15	* This program is free software; you can redistribute it and/or
	16	* modify it under the terms of the GNU General Public License
	17	* version 2 as published by the Free Software Foundation.
	18	*
	19	* This program is distributed in the hope that it will be useful, but
	20	* WITHOUT ANY WARRANTY; without even the implied warranty of
	21	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	22	* General Public License for more details.
	23	*
	24	* You should have received a copy of the GNU General Public License
	25	* along with this program; if not, write to the Free Software
	26	* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
	27	* 02110-1301 USA
	28	*
	29	*/
	30
	31	#include <asm/mach-types.h>
72de2b1a	32
a8bf1ba1	33	#include <linux/module.h>
72de2b1a SW	34	#include <linux/platform_device.h>
72de2b1a SW	35	#include <linux/slab.h>
6e267645 SW	36	#include <linux/gpio.h>
	37
	38	#include <mach/harmony_audio.h>
72de2b1a	39
a8bf1ba1	40	#include <sound/core.h>
f7d3e403	41	#include <sound/jack.h>
a8bf1ba1 SW	42	#include <sound/pcm.h>
	43	#include <sound/pcm_params.h>
	44	#include <sound/soc.h>
	45
	46	#include "tegra_das.h"
	47	#include "tegra_i2s.h"
	48	#include "tegra_pcm.h"
	49	#include "tegra_asoc_utils.h"
	50
72de2b1a	51	#define DRV_NAME "tegra-snd-harmony"
a8bf1ba1	52
72de2b1a	53	struct tegra_harmony {
d64e57ce	54	struct tegra_asoc_utils_data util_data;
6e267645 SW	55	struct harmony_audio_platform_data *pdata;
6e267645 SW	56	int gpio_spkr_en_requested;
72de2b1a	57	};
a8bf1ba1 SW	58
	59	static int harmony_asoc_hw_params(struct snd_pcm_substream *substream,
	60	struct snd_pcm_hw_params *params)
	61	{
	62	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	63	struct snd_soc_dai *codec_dai = rtd->codec_dai;
	64	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
c244d477 SW	65	struct snd_soc_codec *codec = rtd->codec;
c244d477 SW	66	struct snd_soc_card *card = codec->card;
d64e57ce	67	struct tegra_harmony *harmony = snd_soc_card_get_drvdata(card);
a8bf1ba1 SW	68	int srate, mclk, mclk_change;
	69	int err;
	70
	71	srate = params_rate(params);
	72	switch (srate) {
	73	case 64000:
	74	case 88200:
	75	case 96000:
	76	mclk = 128 * srate;
	77	break;
	78	default:
	79	mclk = 256 * srate;
	80	break;
	81	}
	82	/* FIXME: Codec only requires >= 3MHz if OSR==0 */
	83	while (mclk < 6000000)
	84	mclk *= 2;
	85
d64e57ce SW	86	err = tegra_asoc_utils_set_rate(&harmony->util_data, srate, mclk,
d64e57ce SW	87	&mclk_change);
a8bf1ba1	88	if (err < 0) {
c244d477	89	dev_err(card->dev, "Can't configure clocks\n");
a8bf1ba1 SW	90	return err;
	91	}
	92
	93	err = snd_soc_dai_set_fmt(codec_dai,
	94	SND_SOC_DAIFMT_I2S \|
	95	SND_SOC_DAIFMT_NB_NF \|
	96	SND_SOC_DAIFMT_CBS_CFS);
	97	if (err < 0) {
c244d477	98	dev_err(card->dev, "codec_dai fmt not set\n");
a8bf1ba1 SW	99	return err;
	100	}
	101
	102	err = snd_soc_dai_set_fmt(cpu_dai,
	103	SND_SOC_DAIFMT_I2S \|
	104	SND_SOC_DAIFMT_NB_NF \|
	105	SND_SOC_DAIFMT_CBS_CFS);
	106	if (err < 0) {
c244d477	107	dev_err(card->dev, "cpu_dai fmt not set\n");
a8bf1ba1 SW	108	return err;
	109	}
	110
	111	if (mclk_change) {
bc72fe0c SW	112	err = snd_soc_dai_set_sysclk(codec_dai, 0, mclk,
	113	SND_SOC_CLOCK_IN);
	114	if (err < 0) {
c244d477	115	dev_err(card->dev, "codec_dai clock not set\n");
bc72fe0c SW	116	return err;
bc72fe0c SW	117	}
a8bf1ba1 SW	118	}
	119
	120	return 0;
	121	}
	122
	123	static struct snd_soc_ops harmony_asoc_ops = {
	124	.hw_params = harmony_asoc_hw_params,
	125	};
	126
f7d3e403 SW	127	static struct snd_soc_jack harmony_hp_jack;
	128
	129	static struct snd_soc_jack_pin harmony_hp_jack_pins[] = {
	130	{
	131	.pin = "Headphone Jack",
	132	.mask = SND_JACK_HEADPHONE,
	133	},
	134	};
	135
	136	static struct snd_soc_jack_gpio harmony_hp_jack_gpios[] = {
	137	{
	138	.name = "headphone detect",
	139	.report = SND_JACK_HEADPHONE,
	140	.debounce_time = 150,
	141	.invert = 1,
	142	}
	143	};
	144
6e267645 SW	145	static int harmony_event_int_spk(struct snd_soc_dapm_widget *w,
	146	struct snd_kcontrol *k, int event)
	147	{
	148	struct snd_soc_codec *codec = w->codec;
	149	struct snd_soc_card *card = codec->card;
	150	struct tegra_harmony *harmony = snd_soc_card_get_drvdata(card);
	151	struct harmony_audio_platform_data *pdata = harmony->pdata;
	152
	153	gpio_set_value_cansleep(pdata->gpio_spkr_en,
f9eabc3d	154	SND_SOC_DAPM_EVENT_ON(event));
6e267645 SW	155
	156	return 0;
	157	}
	158
62ffac4d	159	static const struct snd_soc_dapm_widget harmony_dapm_widgets[] = {
6e267645	160	SND_SOC_DAPM_SPK("Int Spk", harmony_event_int_spk),
62ffac4d SW	161	SND_SOC_DAPM_HP("Headphone Jack", NULL),
	162	SND_SOC_DAPM_MIC("Mic Jack", NULL),
	163	};
	164
	165	static const struct snd_soc_dapm_route harmony_audio_map[] = {
	166	{"Headphone Jack", NULL, "HPOUTR"},
	167	{"Headphone Jack", NULL, "HPOUTL"},
6e267645 SW	168	{"Int Spk", NULL, "ROP"},
	169	{"Int Spk", NULL, "RON"},
	170	{"Int Spk", NULL, "LOP"},
	171	{"Int Spk", NULL, "LON"},
62ffac4d SW	172	{"Mic Bias", NULL, "Mic Jack"},
	173	{"IN1L", NULL, "Mic Bias"},
	174	};
	175
3d8bc390 SW	176	static const struct snd_kcontrol_new harmony_controls[] = {
	177	SOC_DAPM_PIN_SWITCH("Int Spk"),
	178	};
	179
62ffac4d SW	180	static int harmony_asoc_init(struct snd_soc_pcm_runtime *rtd)
	181	{
	182	struct snd_soc_codec *codec = rtd->codec;
	183	struct snd_soc_dapm_context *dapm = &codec->dapm;
6e267645 SW	184	struct snd_soc_card *card = codec->card;
	185	struct tegra_harmony *harmony = snd_soc_card_get_drvdata(card);
	186	struct harmony_audio_platform_data *pdata = harmony->pdata;
	187	int ret;
	188
	189	ret = gpio_request(pdata->gpio_spkr_en, "spkr_en");
	190	if (ret) {
	191	dev_err(card->dev, "cannot get spkr_en gpio\n");
	192	return ret;
	193	}
	194	harmony->gpio_spkr_en_requested = 1;
	195
	196	gpio_direction_output(pdata->gpio_spkr_en, 0);
62ffac4d	197
3d8bc390 SW	198	ret = snd_soc_add_controls(codec, harmony_controls,
	199	ARRAY_SIZE(harmony_controls));
	200	if (ret < 0)
	201	return ret;
	202
62ffac4d SW	203	snd_soc_dapm_new_controls(dapm, harmony_dapm_widgets,
	204	ARRAY_SIZE(harmony_dapm_widgets));
	205
	206	snd_soc_dapm_add_routes(dapm, harmony_audio_map,
	207	ARRAY_SIZE(harmony_audio_map));
	208
62ffac4d SW	209	snd_soc_dapm_enable_pin(dapm, "Mic Jack");
	210	snd_soc_dapm_sync(dapm);
	211
f7d3e403 SW	212	harmony_hp_jack_gpios[0].gpio = pdata->gpio_hp_det;
	213	snd_soc_jack_new(codec, "Headphone Jack", SND_JACK_HEADPHONE,
	214	&harmony_hp_jack);
	215	snd_soc_jack_add_pins(&harmony_hp_jack,
	216	ARRAY_SIZE(harmony_hp_jack_pins),
	217	harmony_hp_jack_pins);
	218	snd_soc_jack_add_gpios(&harmony_hp_jack,
	219	ARRAY_SIZE(harmony_hp_jack_gpios),
	220	harmony_hp_jack_gpios);
	221
62ffac4d SW	222	return 0;
	223	}
	224
a8bf1ba1 SW	225	static struct snd_soc_dai_link harmony_wm8903_dai = {
	226	.name = "WM8903",
	227	.stream_name = "WM8903 PCM",
4b592c91	228	.codec_name = "wm8903.0-001a",
a8bf1ba1 SW	229	.platform_name = "tegra-pcm-audio",
	230	.cpu_dai_name = "tegra-i2s.0",
	231	.codec_dai_name = "wm8903-hifi",
62ffac4d	232	.init = harmony_asoc_init,
a8bf1ba1 SW	233	.ops = &harmony_asoc_ops,
	234	};
	235
	236	static struct snd_soc_card snd_soc_harmony = {
	237	.name = "tegra-harmony",
	238	.dai_link = &harmony_wm8903_dai,
	239	.num_links = 1,
	240	};
	241
72de2b1a	242	static __devinit int tegra_snd_harmony_probe(struct platform_device *pdev)
a8bf1ba1	243	{
72de2b1a SW	244	struct snd_soc_card *card = &snd_soc_harmony;
72de2b1a SW	245	struct tegra_harmony *harmony;
6e267645	246	struct harmony_audio_platform_data *pdata;
a8bf1ba1 SW	247	int ret;
	248
	249	if (!machine_is_harmony()) {
72de2b1a	250	dev_err(&pdev->dev, "Not running on Tegra Harmony!\n");
a8bf1ba1 SW	251	return -ENODEV;
	252	}
	253
6e267645 SW	254	pdata = pdev->dev.platform_data;
	255	if (!pdata) {
	256	dev_err(&pdev->dev, "no platform data supplied\n");
	257	return -EINVAL;
	258	}
	259
72de2b1a SW	260	harmony = kzalloc(sizeof(struct tegra_harmony), GFP_KERNEL);
	261	if (!harmony) {
	262	dev_err(&pdev->dev, "Can't allocate tegra_harmony\n");
	263	return -ENOMEM;
a8bf1ba1 SW	264	}
a8bf1ba1 SW	265
6e267645 SW	266	harmony->pdata = pdata;
6e267645 SW	267
d64e57ce	268	ret = tegra_asoc_utils_init(&harmony->util_data, &pdev->dev);
72de2b1a SW	269	if (ret)
72de2b1a SW	270	goto err_free_harmony;
a8bf1ba1	271
72de2b1a SW	272	card->dev = &pdev->dev;
	273	platform_set_drvdata(pdev, card);
	274	snd_soc_card_set_drvdata(card, harmony);
a8bf1ba1	275
72de2b1a	276	ret = snd_soc_register_card(card);
a8bf1ba1	277	if (ret) {
72de2b1a	278	dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n",
a8bf1ba1	279	ret);
72de2b1a	280	goto err_clear_drvdata;
a8bf1ba1 SW	281	}
	282
	283	return 0;
	284
72de2b1a SW	285	err_clear_drvdata:
	286	snd_soc_card_set_drvdata(card, NULL);
	287	platform_set_drvdata(pdev, NULL);
	288	card->dev = NULL;
d64e57ce	289	tegra_asoc_utils_fini(&harmony->util_data);
72de2b1a SW	290	err_free_harmony:
72de2b1a SW	291	kfree(harmony);
a8bf1ba1 SW	292	return ret;
a8bf1ba1 SW	293	}
a8bf1ba1	294
72de2b1a	295	static int __devexit tegra_snd_harmony_remove(struct platform_device *pdev)
a8bf1ba1	296	{
72de2b1a SW	297	struct snd_soc_card *card = platform_get_drvdata(pdev);
72de2b1a SW	298	struct tegra_harmony *harmony = snd_soc_card_get_drvdata(card);
6e267645	299	struct harmony_audio_platform_data *pdata = harmony->pdata;
72de2b1a SW	300
	301	snd_soc_unregister_card(card);
	302
	303	snd_soc_card_set_drvdata(card, NULL);
	304	platform_set_drvdata(pdev, NULL);
	305	card->dev = NULL;
a8bf1ba1	306
d64e57ce	307	tegra_asoc_utils_fini(&harmony->util_data);
72de2b1a	308
6e267645 SW	309	if (harmony->gpio_spkr_en_requested)
	310	gpio_free(pdata->gpio_spkr_en);
	311
72de2b1a SW	312	kfree(harmony);
	313
	314	return 0;
	315	}
	316
	317	static struct platform_driver tegra_snd_harmony_driver = {
	318	.driver = {
	319	.name = DRV_NAME,
	320	.owner = THIS_MODULE,
	321	},
	322	.probe = tegra_snd_harmony_probe,
	323	.remove = __devexit_p(tegra_snd_harmony_remove),
	324	};
	325
	326	static int __init snd_tegra_harmony_init(void)
	327	{
	328	return platform_driver_register(&tegra_snd_harmony_driver);
	329	}
	330	module_init(snd_tegra_harmony_init);
	331
	332	static void __exit snd_tegra_harmony_exit(void)
	333	{
	334	platform_driver_unregister(&tegra_snd_harmony_driver);
a8bf1ba1	335	}
72de2b1a	336	module_exit(snd_tegra_harmony_exit);
a8bf1ba1 SW	337
	338	MODULE_AUTHOR("Stephen Warren <swarren@nvidia.com>");
	339	MODULE_DESCRIPTION("Harmony machine ASoC driver");
	340	MODULE_LICENSE("GPL");