[deliverable/linux.git] / sound / soc / samsung / speyside.c

/*
 * Speyside audio support
 *
 * Copyright 2011 Wolfson Microelectronics
 *
 * This program is free software; you can redistribute  it and/or modify it
 * under  the terms of  the GNU General  Public License as published by the
 * Free Software Foundation;  either version 2 of the  License, or (at your
 * option) any later version.
 */

#include <sound/soc.h>
#include <sound/soc-dapm.h>
#include <sound/jack.h>
#include <linux/gpio.h>

#include "../codecs/wm8915.h"
#include "../codecs/wm9081.h"

#define WM8915_HPSEL_GPIO 214

static int speyside_set_bias_level(struct snd_soc_card *card,
				   struct snd_soc_dapm_context *dapm,
				   enum snd_soc_bias_level level)
{
	struct snd_soc_dai *codec_dai = card->rtd[0].codec_dai;
	int ret;

	if (dapm->dev != codec_dai->dev)
		return 0;

	switch (level) {
	case SND_SOC_BIAS_STANDBY:
		ret = snd_soc_dai_set_sysclk(codec_dai, WM8915_SYSCLK_MCLK2,
					     32768, SND_SOC_CLOCK_IN);
		if (ret < 0)
			return ret;

		ret = snd_soc_dai_set_pll(codec_dai, WM8915_FLL_MCLK2,
					  0, 0, 0);
		if (ret < 0) {
			pr_err("Failed to stop FLL\n");
			return ret;
		}

	default:
		break;
	}

	return 0;
}

static int speyside_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 *cpu_dai = rtd->cpu_dai;
	struct snd_soc_dai *codec_dai = rtd->codec_dai;
	int ret;

	ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S
					 | SND_SOC_DAIFMT_NB_NF
					 | SND_SOC_DAIFMT_CBM_CFM);
	if (ret < 0)
		return ret;

	ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S
					 | SND_SOC_DAIFMT_NB_NF
					 | SND_SOC_DAIFMT_CBM_CFM);
	if (ret < 0)
		return ret;

	ret = snd_soc_dai_set_pll(codec_dai, 0, WM8915_FLL_MCLK2,
				  32768, 256 * 48000);
	if (ret < 0)
		return ret;

	ret = snd_soc_dai_set_sysclk(codec_dai, WM8915_SYSCLK_FLL,
				     256 * 48000, SND_SOC_CLOCK_IN);
	if (ret < 0)
		return ret;

	return 0;
}

static struct snd_soc_ops speyside_ops = {
	.hw_params = speyside_hw_params,
};

static struct snd_soc_jack speyside_headset;

/* Headset jack detection DAPM pins */
static struct snd_soc_jack_pin speyside_headset_pins[] = {
	{
		.pin = "Headset Mic",
		.mask = SND_JACK_MICROPHONE,
	},
	{
		.pin = "Headphone",
		.mask = SND_JACK_HEADPHONE,
	},
};

/* Default the headphone selection to active high */
static int speyside_jack_polarity;

static int speyside_get_micbias(struct snd_soc_dapm_widget *source,
				struct snd_soc_dapm_widget *sink)
{
	if (speyside_jack_polarity && (strcmp(source->name, "MICB1") == 0))
		return 1;
	if (!speyside_jack_polarity && (strcmp(source->name, "MICB2") == 0))
		return 1;

	return 0;
}

static void speyside_set_polarity(struct snd_soc_codec *codec,
				  int polarity)
{
	speyside_jack_polarity = !polarity;
	gpio_direction_output(WM8915_HPSEL_GPIO, speyside_jack_polarity);

	/* Re-run DAPM to make sure we're using the correct mic bias */
	snd_soc_dapm_sync(&codec->dapm);
}

static int speyside_wm8915_init(struct snd_soc_pcm_runtime *rtd)
{
	struct snd_soc_dai *dai = rtd->codec_dai;
	struct snd_soc_codec *codec = rtd->codec;
	int ret;

	ret = snd_soc_dai_set_sysclk(dai, WM8915_SYSCLK_MCLK2, 32768, 0);
	if (ret < 0)
		return ret;

	ret = gpio_request(WM8915_HPSEL_GPIO, "HP_SEL");
	if (ret != 0)
		pr_err("Failed to request HP_SEL GPIO: %d\n", ret);
	gpio_direction_output(WM8915_HPSEL_GPIO, speyside_jack_polarity);

	ret = snd_soc_jack_new(codec, "Headset",
			       SND_JACK_HEADSET | SND_JACK_BTN_0,
			       &speyside_headset);
	if (ret)
		return ret;

	ret = snd_soc_jack_add_pins(&speyside_headset,
				    ARRAY_SIZE(speyside_headset_pins),
				    speyside_headset_pins);
	if (ret)
		return ret;

	wm8915_detect(codec, &speyside_headset, speyside_set_polarity);

	return 0;
}

static int speyside_late_probe(struct snd_soc_card *card)
{
	snd_soc_dapm_ignore_suspend(&card->dapm, "Headphone");
	snd_soc_dapm_ignore_suspend(&card->dapm, "Headset Mic");
	snd_soc_dapm_ignore_suspend(&card->dapm, "Main AMIC");
	snd_soc_dapm_ignore_suspend(&card->dapm, "Main DMIC");
	snd_soc_dapm_ignore_suspend(&card->dapm, "Speaker");
	snd_soc_dapm_ignore_suspend(&card->dapm, "WM1250 Output");
	snd_soc_dapm_ignore_suspend(&card->dapm, "WM1250 Input");

	return 0;
}

static struct snd_soc_dai_link speyside_dai[] = {
	{
		.name = "CPU",
		.stream_name = "CPU",
		.cpu_dai_name = "samsung-i2s.0",
		.codec_dai_name = "wm8915-aif1",
		.platform_name = "samsung-audio",
		.codec_name = "wm8915.1-001a",
		.init = speyside_wm8915_init,
		.ops = &speyside_ops,
	},
	{
		.name = "Baseband",
		.stream_name = "Baseband",
		.cpu_dai_name = "wm8915-aif2",
		.codec_dai_name = "wm1250-ev1",
		.codec_name = "wm1250-ev1.1-0027",
		.ops = &speyside_ops,
		.ignore_suspend = 1,
	},
};

static int speyside_wm9081_init(struct snd_soc_dapm_context *dapm)
{
	snd_soc_dapm_nc_pin(dapm, "LINEOUT");

	/* At any time the WM9081 is active it will have this clock */
	return snd_soc_codec_set_sysclk(dapm->codec, WM9081_SYSCLK_MCLK,
					48000 * 256, 0);
}

static struct snd_soc_aux_dev speyside_aux_dev[] = {
	{
		.name = "wm9081",
		.codec_name = "wm9081.1-006c",
		.init = speyside_wm9081_init,
	},
};

static struct snd_soc_codec_conf speyside_codec_conf[] = {
	{
		.dev_name = "wm9081.1-006c",
		.name_prefix = "Sub",
	},
};

static const struct snd_kcontrol_new controls[] = {
	SOC_DAPM_PIN_SWITCH("Main Speaker"),
	SOC_DAPM_PIN_SWITCH("Main DMIC"),
	SOC_DAPM_PIN_SWITCH("Main AMIC"),
	SOC_DAPM_PIN_SWITCH("WM1250 Input"),
	SOC_DAPM_PIN_SWITCH("WM1250 Output"),
};

static struct snd_soc_dapm_widget widgets[] = {
	SND_SOC_DAPM_HP("Headphone", NULL),
	SND_SOC_DAPM_MIC("Headset Mic", NULL),

	SND_SOC_DAPM_SPK("Main Speaker", NULL),

	SND_SOC_DAPM_MIC("Main AMIC", NULL),
	SND_SOC_DAPM_MIC("Main DMIC", NULL),
};

static struct snd_soc_dapm_route audio_paths[] = {
	{ "IN1RN", NULL, "MICB1" },
	{ "IN1RP", NULL, "MICB1" },
	{ "IN1RN", NULL, "MICB2" },
	{ "IN1RP", NULL, "MICB2" },
	{ "MICB1", NULL, "Headset Mic", speyside_get_micbias },
	{ "MICB2", NULL, "Headset Mic", speyside_get_micbias },

	{ "IN1LP", NULL, "MICB2" },
	{ "IN1RN", NULL, "MICB1" },
	{ "MICB2", NULL, "Main AMIC" },

	{ "DMIC1DAT", NULL, "MICB1" },
	{ "DMIC2DAT", NULL, "MICB1" },
	{ "MICB1", NULL, "Main DMIC" },

	{ "Headphone", NULL, "HPOUT1L" },
	{ "Headphone", NULL, "HPOUT1R" },

	{ "Sub IN1", NULL, "HPOUT2L" },
	{ "Sub IN2", NULL, "HPOUT2R" },

	{ "Main Speaker", NULL, "Sub SPKN" },
	{ "Main Speaker", NULL, "Sub SPKP" },
	{ "Main Speaker", NULL, "SPKDAT" },
};

static struct snd_soc_card speyside = {
	.name = "Speyside",
	.dai_link = speyside_dai,
	.num_links = ARRAY_SIZE(speyside_dai),
	.aux_dev = speyside_aux_dev,
	.num_aux_devs = ARRAY_SIZE(speyside_aux_dev),
	.codec_conf = speyside_codec_conf,
	.num_configs = ARRAY_SIZE(speyside_codec_conf),

	.set_bias_level = speyside_set_bias_level,

	.controls = controls,
	.num_controls = ARRAY_SIZE(controls),
	.dapm_widgets = widgets,
	.num_dapm_widgets = ARRAY_SIZE(widgets),
	.dapm_routes = audio_paths,
	.num_dapm_routes = ARRAY_SIZE(audio_paths),

	.late_probe = speyside_late_probe,
};

static __devinit int speyside_probe(struct platform_device *pdev)
{
	struct snd_soc_card *card = &speyside;
	int ret;

	card->dev = &pdev->dev;

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

	return 0;
}

static int __devexit speyside_remove(struct platform_device *pdev)
{
	struct snd_soc_card *card = platform_get_drvdata(pdev);

	snd_soc_unregister_card(card);

	return 0;
}

static struct platform_driver speyside_driver = {
	.driver = {
		.name = "speyside",
		.owner = THIS_MODULE,
		.pm = &snd_soc_pm_ops,
	},
	.probe = speyside_probe,
	.remove = __devexit_p(speyside_remove),
};

static int __init speyside_audio_init(void)
{
	return platform_driver_register(&speyside_driver);
}
module_init(speyside_audio_init);

static void __exit speyside_audio_exit(void)
{
	platform_driver_unregister(&speyside_driver);
}
module_exit(speyside_audio_exit);

MODULE_DESCRIPTION("Speyside audio support");
MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:speyside");
Commit	Line	Data
9b8dc66f MB	1	/*
	2	* Speyside audio support
	3	*
	4	* Copyright 2011 Wolfson Microelectronics
	5	*
	6	* This program is free software; you can redistribute it and/or modify it
	7	* under the terms of the GNU General Public License as published by the
	8	* Free Software Foundation; either version 2 of the License, or (at your
	9	* option) any later version.
	10	*/
	11
	12	#include <sound/soc.h>
	13	#include <sound/soc-dapm.h>
68688e78 MB	14	#include <sound/jack.h>
68688e78 MB	15	#include <linux/gpio.h>
9b8dc66f MB	16
9b8dc66f MB	17	#include "../codecs/wm8915.h"
ea3e98e7	18	#include "../codecs/wm9081.h"
9b8dc66f	19
68688e78 MB	20	#define WM8915_HPSEL_GPIO 214
68688e78 MB	21
ea0a591a	22	static int speyside_set_bias_level(struct snd_soc_card *card,
d4c6005f	23	struct snd_soc_dapm_context *dapm,
ea0a591a MB	24	enum snd_soc_bias_level level)
	25	{
	26	struct snd_soc_dai *codec_dai = card->rtd[0].codec_dai;
	27	int ret;
	28
d4c6005f MB	29	if (dapm->dev != codec_dai->dev)
	30	return 0;
	31
ea0a591a MB	32	switch (level) {
ea0a591a MB	33	case SND_SOC_BIAS_STANDBY:
1e025a36	34	ret = snd_soc_dai_set_sysclk(codec_dai, WM8915_SYSCLK_MCLK2,
ea0a591a MB	35	32768, SND_SOC_CLOCK_IN);
	36	if (ret < 0)
	37	return ret;
	38
1e025a36	39	ret = snd_soc_dai_set_pll(codec_dai, WM8915_FLL_MCLK2,
ea0a591a MB	40	0, 0, 0);
	41	if (ret < 0) {
	42	pr_err("Failed to stop FLL\n");
	43	return ret;
	44	}
	45
	46	default:
	47	break;
	48	}
	49
	50	return 0;
	51	}
	52
9b8dc66f MB	53	static int speyside_hw_params(struct snd_pcm_substream *substream,
	54	struct snd_pcm_hw_params *params)
	55	{
	56	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	57	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
	58	struct snd_soc_dai *codec_dai = rtd->codec_dai;
	59	int ret;
	60
	61	ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S
	62	\| SND_SOC_DAIFMT_NB_NF
	63	\| SND_SOC_DAIFMT_CBM_CFM);
	64	if (ret < 0)
	65	return ret;
	66
	67	ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S
	68	\| SND_SOC_DAIFMT_NB_NF
	69	\| SND_SOC_DAIFMT_CBM_CFM);
	70	if (ret < 0)
	71	return ret;
	72
1e025a36	73	ret = snd_soc_dai_set_pll(codec_dai, 0, WM8915_FLL_MCLK2,
9b8dc66f MB	74	32768, 256 * 48000);
	75	if (ret < 0)
	76	return ret;
	77
	78	ret = snd_soc_dai_set_sysclk(codec_dai, WM8915_SYSCLK_FLL,
	79	256 * 48000, SND_SOC_CLOCK_IN);
	80	if (ret < 0)
	81	return ret;
	82
	83	return 0;
	84	}
	85
	86	static struct snd_soc_ops speyside_ops = {
	87	.hw_params = speyside_hw_params,
	88	};
	89
68688e78 MB	90	static struct snd_soc_jack speyside_headset;
	91
	92	/* Headset jack detection DAPM pins */
	93	static struct snd_soc_jack_pin speyside_headset_pins[] = {
	94	{
	95	.pin = "Headset Mic",
	96	.mask = SND_JACK_MICROPHONE,
	97	},
	98	{
	99	.pin = "Headphone",
	100	.mask = SND_JACK_HEADPHONE,
	101	},
	102	};
	103
	104	/* Default the headphone selection to active high */
	105	static int speyside_jack_polarity;
	106
	107	static int speyside_get_micbias(struct snd_soc_dapm_widget *source,
	108	struct snd_soc_dapm_widget *sink)
	109	{
	110	if (speyside_jack_polarity && (strcmp(source->name, "MICB1") == 0))
	111	return 1;
	112	if (!speyside_jack_polarity && (strcmp(source->name, "MICB2") == 0))
	113	return 1;
	114
	115	return 0;
	116	}
	117
	118	static void speyside_set_polarity(struct snd_soc_codec *codec,
	119	int polarity)
	120	{
	121	speyside_jack_polarity = !polarity;
	122	gpio_direction_output(WM8915_HPSEL_GPIO, speyside_jack_polarity);
	123
	124	/* Re-run DAPM to make sure we're using the correct mic bias */
	125	snd_soc_dapm_sync(&codec->dapm);
	126	}
	127
ea0a591a MB	128	static int speyside_wm8915_init(struct snd_soc_pcm_runtime *rtd)
	129	{
	130	struct snd_soc_dai *dai = rtd->codec_dai;
68688e78 MB	131	struct snd_soc_codec *codec = rtd->codec;
	132	int ret;
	133
1e025a36	134	ret = snd_soc_dai_set_sysclk(dai, WM8915_SYSCLK_MCLK2, 32768, 0);
68688e78 MB	135	if (ret < 0)
	136	return ret;
	137
	138	ret = gpio_request(WM8915_HPSEL_GPIO, "HP_SEL");
	139	if (ret != 0)
	140	pr_err("Failed to request HP_SEL GPIO: %d\n", ret);
	141	gpio_direction_output(WM8915_HPSEL_GPIO, speyside_jack_polarity);
ea0a591a	142
68688e78 MB	143	ret = snd_soc_jack_new(codec, "Headset",
	144	SND_JACK_HEADSET \| SND_JACK_BTN_0,
	145	&speyside_headset);
	146	if (ret)
	147	return ret;
	148
	149	ret = snd_soc_jack_add_pins(&speyside_headset,
	150	ARRAY_SIZE(speyside_headset_pins),
	151	speyside_headset_pins);
	152	if (ret)
	153	return ret;
	154
	155	wm8915_detect(codec, &speyside_headset, speyside_set_polarity);
	156
	157	return 0;
ea0a591a MB	158	}
ea0a591a MB	159
b7a5d14c MB	160	static int speyside_late_probe(struct snd_soc_card *card)
	161	{
	162	snd_soc_dapm_ignore_suspend(&card->dapm, "Headphone");
	163	snd_soc_dapm_ignore_suspend(&card->dapm, "Headset Mic");
	164	snd_soc_dapm_ignore_suspend(&card->dapm, "Main AMIC");
	165	snd_soc_dapm_ignore_suspend(&card->dapm, "Main DMIC");
	166	snd_soc_dapm_ignore_suspend(&card->dapm, "Speaker");
	167	snd_soc_dapm_ignore_suspend(&card->dapm, "WM1250 Output");
	168	snd_soc_dapm_ignore_suspend(&card->dapm, "WM1250 Input");
	169
	170	return 0;
	171	}
	172
9b8dc66f MB	173	static struct snd_soc_dai_link speyside_dai[] = {
	174	{
	175	.name = "CPU",
	176	.stream_name = "CPU",
	177	.cpu_dai_name = "samsung-i2s.0",
	178	.codec_dai_name = "wm8915-aif1",
	179	.platform_name = "samsung-audio",
	180	.codec_name = "wm8915.1-001a",
ea0a591a	181	.init = speyside_wm8915_init,
9b8dc66f MB	182	.ops = &speyside_ops,
9b8dc66f MB	183	},
556e4fb1 MB	184	{
	185	.name = "Baseband",
	186	.stream_name = "Baseband",
	187	.cpu_dai_name = "wm8915-aif2",
	188	.codec_dai_name = "wm1250-ev1",
	189	.codec_name = "wm1250-ev1.1-0027",
556e4fb1	190	.ops = &speyside_ops,
b7a5d14c	191	.ignore_suspend = 1,
556e4fb1	192	},
9b8dc66f MB	193	};
9b8dc66f MB	194
ea3e98e7 MB	195	static int speyside_wm9081_init(struct snd_soc_dapm_context *dapm)
	196	{
	197	snd_soc_dapm_nc_pin(dapm, "LINEOUT");
	198
	199	/* At any time the WM9081 is active it will have this clock */
	200	return snd_soc_codec_set_sysclk(dapm->codec, WM9081_SYSCLK_MCLK,
	201	48000 * 256, 0);
	202	}
	203
	204	static struct snd_soc_aux_dev speyside_aux_dev[] = {
	205	{
	206	.name = "wm9081",
	207	.codec_name = "wm9081.1-006c",
	208	.init = speyside_wm9081_init,
	209	},
	210	};
	211
	212	static struct snd_soc_codec_conf speyside_codec_conf[] = {
	213	{
	214	.dev_name = "wm9081.1-006c",
	215	.name_prefix = "Sub",
	216	},
	217	};
	218
ea0e60de MB	219	static const struct snd_kcontrol_new controls[] = {
	220	SOC_DAPM_PIN_SWITCH("Main Speaker"),
	221	SOC_DAPM_PIN_SWITCH("Main DMIC"),
	222	SOC_DAPM_PIN_SWITCH("Main AMIC"),
556e4fb1 MB	223	SOC_DAPM_PIN_SWITCH("WM1250 Input"),
556e4fb1 MB	224	SOC_DAPM_PIN_SWITCH("WM1250 Output"),
ea0e60de MB	225	};
ea0e60de MB	226
ecfb1adf MB	227	static struct snd_soc_dapm_widget widgets[] = {
ecfb1adf MB	228	SND_SOC_DAPM_HP("Headphone", NULL),
68688e78	229	SND_SOC_DAPM_MIC("Headset Mic", NULL),
ecfb1adf MB	230
	231	SND_SOC_DAPM_SPK("Main Speaker", NULL),
	232
	233	SND_SOC_DAPM_MIC("Main AMIC", NULL),
	234	SND_SOC_DAPM_MIC("Main DMIC", NULL),
	235	};
	236
	237	static struct snd_soc_dapm_route audio_paths[] = {
68688e78 MB	238	{ "IN1RN", NULL, "MICB1" },
	239	{ "IN1RP", NULL, "MICB1" },
	240	{ "IN1RN", NULL, "MICB2" },
	241	{ "IN1RP", NULL, "MICB2" },
	242	{ "MICB1", NULL, "Headset Mic", speyside_get_micbias },
	243	{ "MICB2", NULL, "Headset Mic", speyside_get_micbias },
	244
ecfb1adf	245	{ "IN1LP", NULL, "MICB2" },
68688e78	246	{ "IN1RN", NULL, "MICB1" },
ecfb1adf MB	247	{ "MICB2", NULL, "Main AMIC" },
	248
	249	{ "DMIC1DAT", NULL, "MICB1" },
	250	{ "DMIC2DAT", NULL, "MICB1" },
	251	{ "MICB1", NULL, "Main DMIC" },
	252
	253	{ "Headphone", NULL, "HPOUT1L" },
	254	{ "Headphone", NULL, "HPOUT1R" },
	255
ea3e98e7 MB	256	{ "Sub IN1", NULL, "HPOUT2L" },
	257	{ "Sub IN2", NULL, "HPOUT2R" },
	258
	259	{ "Main Speaker", NULL, "Sub SPKN" },
	260	{ "Main Speaker", NULL, "Sub SPKP" },
ecfb1adf MB	261	{ "Main Speaker", NULL, "SPKDAT" },
	262	};
	263
9b8dc66f MB	264	static struct snd_soc_card speyside = {
	265	.name = "Speyside",
	266	.dai_link = speyside_dai,
	267	.num_links = ARRAY_SIZE(speyside_dai),
ea3e98e7 MB	268	.aux_dev = speyside_aux_dev,
	269	.num_aux_devs = ARRAY_SIZE(speyside_aux_dev),
	270	.codec_conf = speyside_codec_conf,
	271	.num_configs = ARRAY_SIZE(speyside_codec_conf),
ecfb1adf	272
ea0a591a MB	273	.set_bias_level = speyside_set_bias_level,
ea0a591a MB	274
ea0e60de MB	275	.controls = controls,
ea0e60de MB	276	.num_controls = ARRAY_SIZE(controls),
ecfb1adf MB	277	.dapm_widgets = widgets,
	278	.num_dapm_widgets = ARRAY_SIZE(widgets),
	279	.dapm_routes = audio_paths,
	280	.num_dapm_routes = ARRAY_SIZE(audio_paths),
b7a5d14c MB	281
b7a5d14c MB	282	.late_probe = speyside_late_probe,
9b8dc66f MB	283	};
	284
	285	static __devinit int speyside_probe(struct platform_device *pdev)
	286	{
	287	struct snd_soc_card *card = &speyside;
	288	int ret;
	289
	290	card->dev = &pdev->dev;
	291
	292	ret = snd_soc_register_card(card);
	293	if (ret) {
	294	dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
	295	ret);
	296	return ret;
	297	}
	298
	299	return 0;
	300	}
	301
	302	static int __devexit speyside_remove(struct platform_device *pdev)
	303	{
	304	struct snd_soc_card *card = platform_get_drvdata(pdev);
	305
	306	snd_soc_unregister_card(card);
	307
	308	return 0;
	309	}
	310
	311	static struct platform_driver speyside_driver = {
	312	.driver = {
	313	.name = "speyside",
	314	.owner = THIS_MODULE,
	315	.pm = &snd_soc_pm_ops,
	316	},
	317	.probe = speyside_probe,
	318	.remove = __devexit_p(speyside_remove),
	319	};
	320
	321	static int __init speyside_audio_init(void)
	322	{
	323	return platform_driver_register(&speyside_driver);
	324	}
	325	module_init(speyside_audio_init);
	326
	327	static void __exit speyside_audio_exit(void)
	328	{
	329	platform_driver_unregister(&speyside_driver);
	330	}
	331	module_exit(speyside_audio_exit);
	332
	333	MODULE_DESCRIPTION("Speyside audio support");
	334	MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
	335	MODULE_LICENSE("GPL");
	336	MODULE_ALIAS("platform:speyside");