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

/*
 * Littlemill 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 <linux/module.h>

#include "../codecs/wm8994.h"

static int sample_rate = 44100;

static int littlemill_set_bias_level(struct snd_soc_card *card,
					  struct snd_soc_dapm_context *dapm,
					  enum snd_soc_bias_level level)
{
	struct snd_soc_pcm_runtime *rtd;
	struct snd_soc_dai *aif1_dai;
	int ret;

	rtd = snd_soc_get_pcm_runtime(card, card->dai_link[0].name);
	aif1_dai = rtd->codec_dai;

	if (dapm->dev != aif1_dai->dev)
		return 0;

	switch (level) {
	case SND_SOC_BIAS_PREPARE:
		/*
		 * If we've not already clocked things via hw_params()
		 * then do so now, otherwise these are noops.
		 */
		if (dapm->bias_level == SND_SOC_BIAS_STANDBY) {
			ret = snd_soc_dai_set_pll(aif1_dai, WM8994_FLL1,
						  WM8994_FLL_SRC_MCLK2, 32768,
						  sample_rate * 512);
			if (ret < 0) {
				pr_err("Failed to start FLL: %d\n", ret);
				return ret;
			}

			ret = snd_soc_dai_set_sysclk(aif1_dai,
						     WM8994_SYSCLK_FLL1,
						     sample_rate * 512,
						     SND_SOC_CLOCK_IN);
			if (ret < 0) {
				pr_err("Failed to set SYSCLK: %d\n", ret);
				return ret;
			}
		}
		break;

	default:
		break;
	}

	return 0;
}

static int littlemill_set_bias_level_post(struct snd_soc_card *card,
					       struct snd_soc_dapm_context *dapm,
					       enum snd_soc_bias_level level)
{
	struct snd_soc_pcm_runtime *rtd;
	struct snd_soc_dai *aif1_dai;
	int ret;

	rtd = snd_soc_get_pcm_runtime(card, card->dai_link[0].name);
	aif1_dai = rtd->codec_dai;

	if (dapm->dev != aif1_dai->dev)
		return 0;

	switch (level) {
	case SND_SOC_BIAS_STANDBY:
		ret = snd_soc_dai_set_sysclk(aif1_dai, WM8994_SYSCLK_MCLK2,
					     32768, SND_SOC_CLOCK_IN);
		if (ret < 0) {
			pr_err("Failed to switch away from FLL1: %d\n", ret);
			return ret;
		}

		ret = snd_soc_dai_set_pll(aif1_dai, WM8994_FLL1,
					  0, 0, 0);
		if (ret < 0) {
			pr_err("Failed to stop FLL1: %d\n", ret);
			return ret;
		}
		break;

	default:
		break;
	}

	dapm->bias_level = level;

	return 0;
}

static int littlemill_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;
	int ret;

	sample_rate = params_rate(params);

	ret = snd_soc_dai_set_pll(codec_dai, WM8994_FLL1,
				  WM8994_FLL_SRC_MCLK2, 32768,
				  sample_rate * 512);
	if (ret < 0) {
		pr_err("Failed to start FLL: %d\n", ret);
		return ret;
	}

	ret = snd_soc_dai_set_sysclk(codec_dai,
				     WM8994_SYSCLK_FLL1,
				     sample_rate * 512,
				     SND_SOC_CLOCK_IN);
	if (ret < 0) {
		pr_err("Failed to set SYSCLK: %d\n", ret);
		return ret;
	}

	return 0;
}

static struct snd_soc_ops littlemill_ops = {
	.hw_params = littlemill_hw_params,
};

static const struct snd_soc_pcm_stream baseband_params = {
	.formats = SNDRV_PCM_FMTBIT_S32_LE,
	.rate_min = 8000,
	.rate_max = 8000,
	.channels_min = 2,
	.channels_max = 2,
};

static struct snd_soc_dai_link littlemill_dai[] = {
	{
		.name = "CPU",
		.stream_name = "CPU",
		.cpu_dai_name = "samsung-i2s.0",
		.codec_dai_name = "wm8994-aif1",
		.platform_name = "samsung-i2s.0",
		.codec_name = "wm8994-codec",
		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
				| SND_SOC_DAIFMT_CBM_CFM,
		.ops = &littlemill_ops,
	},
	{
		.name = "Baseband",
		.stream_name = "Baseband",
		.cpu_dai_name = "wm8994-aif2",
		.codec_dai_name = "wm1250-ev1",
		.codec_name = "wm1250-ev1.1-0027",
		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
				| SND_SOC_DAIFMT_CBM_CFM,
		.ignore_suspend = 1,
		.params = &baseband_params,
	},
};

static int bbclk_ev(struct snd_soc_dapm_widget *w,
		    struct snd_kcontrol *kcontrol, int event)
{
	struct snd_soc_card *card = w->dapm->card;
	struct snd_soc_pcm_runtime *rtd;
	struct snd_soc_dai *aif2_dai;
	int ret;

	rtd = snd_soc_get_pcm_runtime(card, card->dai_link[1].name);
	aif2_dai = rtd->cpu_dai;

	switch (event) {
	case SND_SOC_DAPM_PRE_PMU:
		ret = snd_soc_dai_set_pll(aif2_dai, WM8994_FLL2,
					  WM8994_FLL_SRC_BCLK, 64 * 8000,
					  8000 * 256);
		if (ret < 0) {
			pr_err("Failed to start FLL: %d\n", ret);
			return ret;
		}

		ret = snd_soc_dai_set_sysclk(aif2_dai, WM8994_SYSCLK_FLL2,
					     8000 * 256,
					     SND_SOC_CLOCK_IN);
		if (ret < 0) {
			pr_err("Failed to set SYSCLK: %d\n", ret);
			return ret;
		}
		break;
	case SND_SOC_DAPM_POST_PMD:
		ret = snd_soc_dai_set_sysclk(aif2_dai, WM8994_SYSCLK_MCLK2,
					     32768, SND_SOC_CLOCK_IN);
		if (ret < 0) {
			pr_err("Failed to switch away from FLL2: %d\n", ret);
			return ret;
		}

		ret = snd_soc_dai_set_pll(aif2_dai, WM8994_FLL2,
					  0, 0, 0);
		if (ret < 0) {
			pr_err("Failed to stop FLL2: %d\n", ret);
			return ret;
		}
		break;
	default:
		return -EINVAL;
	}

	return 0;
}

static const struct snd_kcontrol_new controls[] = {
	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("AMIC", NULL),
	SND_SOC_DAPM_MIC("DMIC", NULL),

	SND_SOC_DAPM_SUPPLY_S("Baseband Clock", -1, SND_SOC_NOPM, 0, 0,
			      bbclk_ev,
			      SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
};

static struct snd_soc_dapm_route audio_paths[] = {
	{ "Headphone", NULL, "HPOUT1L" },
	{ "Headphone", NULL, "HPOUT1R" },

	{ "AMIC", NULL, "MICBIAS1" },   /* Default for AMICBIAS jumper */
	{ "IN1LN", NULL, "AMIC" },

	{ "DMIC", NULL, "MICBIAS2" },   /* Default for DMICBIAS jumper */
	{ "DMIC1DAT", NULL, "DMIC" },
	{ "DMIC2DAT", NULL, "DMIC" },

	{ "AIF2CLK", NULL, "Baseband Clock" },
};

static struct snd_soc_jack littlemill_headset;

static int littlemill_late_probe(struct snd_soc_card *card)
{
	struct snd_soc_pcm_runtime *rtd;
	struct snd_soc_codec *codec;
	struct snd_soc_dai *aif1_dai;
	struct snd_soc_dai *aif2_dai;
	int ret;

	rtd = snd_soc_get_pcm_runtime(card, card->dai_link[0].name);
	codec = rtd->codec;
	aif1_dai = rtd->codec_dai;

	rtd = snd_soc_get_pcm_runtime(card, card->dai_link[1].name);
	aif2_dai = rtd->cpu_dai;

	ret = snd_soc_dai_set_sysclk(aif1_dai, WM8994_SYSCLK_MCLK2,
				     32768, SND_SOC_CLOCK_IN);
	if (ret < 0)
		return ret;

	ret = snd_soc_dai_set_sysclk(aif2_dai, WM8994_SYSCLK_MCLK2,
				     32768, SND_SOC_CLOCK_IN);
	if (ret < 0)
		return ret;

	ret = snd_soc_card_jack_new(card, "Headset",
				    SND_JACK_HEADSET | SND_JACK_MECHANICAL |
				    SND_JACK_BTN_0 | SND_JACK_BTN_1 |
				    SND_JACK_BTN_2 | SND_JACK_BTN_3 |
				    SND_JACK_BTN_4 | SND_JACK_BTN_5,
				    &littlemill_headset, NULL, 0);
	if (ret)
		return ret;

	/* This will check device compatibility itself */
	wm8958_mic_detect(codec, &littlemill_headset, NULL, NULL, NULL, NULL);

	/* As will this */
	wm8994_mic_detect(codec, &littlemill_headset, 1);

	return 0;
}

static struct snd_soc_card littlemill = {
	.name = "Littlemill",
	.owner = THIS_MODULE,
	.dai_link = littlemill_dai,
	.num_links = ARRAY_SIZE(littlemill_dai),

	.set_bias_level = littlemill_set_bias_level,
	.set_bias_level_post = littlemill_set_bias_level_post,

	.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 = littlemill_late_probe,
};

static int littlemill_probe(struct platform_device *pdev)
{
	struct snd_soc_card *card = &littlemill;
	int ret;

	card->dev = &pdev->dev;

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

	return ret;
}

static struct platform_driver littlemill_driver = {
	.driver = {
		.name = "littlemill",
		.pm = &snd_soc_pm_ops,
	},
	.probe = littlemill_probe,
};

module_platform_driver(littlemill_driver);

MODULE_DESCRIPTION("Littlemill audio support");
MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:littlemill");
Commit	Line	Data
0a590b1d MB	1	/*
	2	* Littlemill 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>
	14	#include <sound/jack.h>
	15	#include <linux/gpio.h>
	16	#include <linux/module.h>
	17
	18	#include "../codecs/wm8994.h"
	19
	20	static int sample_rate = 44100;
	21
	22	static int littlemill_set_bias_level(struct snd_soc_card *card,
	23	struct snd_soc_dapm_context *dapm,
	24	enum snd_soc_bias_level level)
	25	{
5015920a ML	26	struct snd_soc_pcm_runtime *rtd;
5015920a ML	27	struct snd_soc_dai *aif1_dai;
0a590b1d MB	28	int ret;
0a590b1d MB	29
5015920a ML	30	rtd = snd_soc_get_pcm_runtime(card, card->dai_link[0].name);
	31	aif1_dai = rtd->codec_dai;
	32
0cbe4b36	33	if (dapm->dev != aif1_dai->dev)
0a590b1d MB	34	return 0;
	35
	36	switch (level) {
	37	case SND_SOC_BIAS_PREPARE:
	38	/*
	39	* If we've not already clocked things via hw_params()
	40	* then do so now, otherwise these are noops.
	41	*/
	42	if (dapm->bias_level == SND_SOC_BIAS_STANDBY) {
0cbe4b36	43	ret = snd_soc_dai_set_pll(aif1_dai, WM8994_FLL1,
0a590b1d MB	44	WM8994_FLL_SRC_MCLK2, 32768,
	45	sample_rate * 512);
	46	if (ret < 0) {
	47	pr_err("Failed to start FLL: %d\n", ret);
	48	return ret;
	49	}
	50
0cbe4b36	51	ret = snd_soc_dai_set_sysclk(aif1_dai,
0a590b1d MB	52	WM8994_SYSCLK_FLL1,
	53	sample_rate * 512,
	54	SND_SOC_CLOCK_IN);
	55	if (ret < 0) {
	56	pr_err("Failed to set SYSCLK: %d\n", ret);
	57	return ret;
	58	}
	59	}
	60	break;
	61
	62	default:
	63	break;
	64	}
	65
	66	return 0;
	67	}
	68
	69	static int littlemill_set_bias_level_post(struct snd_soc_card *card,
	70	struct snd_soc_dapm_context *dapm,
	71	enum snd_soc_bias_level level)
	72	{
5015920a ML	73	struct snd_soc_pcm_runtime *rtd;
5015920a ML	74	struct snd_soc_dai *aif1_dai;
0a590b1d MB	75	int ret;
0a590b1d MB	76
5015920a ML	77	rtd = snd_soc_get_pcm_runtime(card, card->dai_link[0].name);
	78	aif1_dai = rtd->codec_dai;
	79
0cbe4b36	80	if (dapm->dev != aif1_dai->dev)
0a590b1d MB	81	return 0;
	82
	83	switch (level) {
	84	case SND_SOC_BIAS_STANDBY:
0cbe4b36 MB	85	ret = snd_soc_dai_set_sysclk(aif1_dai, WM8994_SYSCLK_MCLK2,
	86	32768, SND_SOC_CLOCK_IN);
	87	if (ret < 0) {
	88	pr_err("Failed to switch away from FLL1: %d\n", ret);
	89	return ret;
	90	}
	91
	92	ret = snd_soc_dai_set_pll(aif1_dai, WM8994_FLL1,
	93	0, 0, 0);
	94	if (ret < 0) {
	95	pr_err("Failed to stop FLL1: %d\n", ret);
	96	return ret;
	97	}
	98	break;
	99
0a590b1d MB	100	default:
	101	break;
	102	}
	103
	104	dapm->bias_level = level;
	105
	106	return 0;
	107	}
	108
	109	static int littlemill_hw_params(struct snd_pcm_substream *substream,
	110	struct snd_pcm_hw_params *params)
	111	{
	112	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	113	struct snd_soc_dai *codec_dai = rtd->codec_dai;
	114	int ret;
	115
	116	sample_rate = params_rate(params);
	117
	118	ret = snd_soc_dai_set_pll(codec_dai, WM8994_FLL1,
	119	WM8994_FLL_SRC_MCLK2, 32768,
	120	sample_rate * 512);
	121	if (ret < 0) {
	122	pr_err("Failed to start FLL: %d\n", ret);
	123	return ret;
	124	}
	125
	126	ret = snd_soc_dai_set_sysclk(codec_dai,
	127	WM8994_SYSCLK_FLL1,
	128	sample_rate * 512,
	129	SND_SOC_CLOCK_IN);
	130	if (ret < 0) {
	131	pr_err("Failed to set SYSCLK: %d\n", ret);
	132	return ret;
	133	}
	134
	135	return 0;
	136	}
	137
	138	static struct snd_soc_ops littlemill_ops = {
	139	.hw_params = littlemill_hw_params,
	140	};
	141
0cbe4b36 MB	142	static const struct snd_soc_pcm_stream baseband_params = {
	143	.formats = SNDRV_PCM_FMTBIT_S32_LE,
	144	.rate_min = 8000,
	145	.rate_max = 8000,
	146	.channels_min = 2,
	147	.channels_max = 2,
	148	};
	149
0a590b1d MB	150	static struct snd_soc_dai_link littlemill_dai[] = {
	151	{
	152	.name = "CPU",
	153	.stream_name = "CPU",
	154	.cpu_dai_name = "samsung-i2s.0",
	155	.codec_dai_name = "wm8994-aif1",
a08485d8	156	.platform_name = "samsung-i2s.0",
0a590b1d MB	157	.codec_name = "wm8994-codec",
	158	.dai_fmt = SND_SOC_DAIFMT_I2S \| SND_SOC_DAIFMT_NB_NF
	159	\| SND_SOC_DAIFMT_CBM_CFM,
	160	.ops = &littlemill_ops,
	161	},
0cbe4b36 MB	162	{
	163	.name = "Baseband",
	164	.stream_name = "Baseband",
	165	.cpu_dai_name = "wm8994-aif2",
	166	.codec_dai_name = "wm1250-ev1",
	167	.codec_name = "wm1250-ev1.1-0027",
	168	.dai_fmt = SND_SOC_DAIFMT_I2S \| SND_SOC_DAIFMT_NB_NF
	169	\| SND_SOC_DAIFMT_CBM_CFM,
	170	.ignore_suspend = 1,
	171	.params = &baseband_params,
	172	},
0a590b1d MB	173	};
0a590b1d MB	174
68a02db4 MB	175	static int bbclk_ev(struct snd_soc_dapm_widget *w,
	176	struct snd_kcontrol *kcontrol, int event)
	177	{
	178	struct snd_soc_card *card = w->dapm->card;
5015920a ML	179	struct snd_soc_pcm_runtime *rtd;
5015920a ML	180	struct snd_soc_dai *aif2_dai;
68a02db4 MB	181	int ret;
68a02db4 MB	182
5015920a ML	183	rtd = snd_soc_get_pcm_runtime(card, card->dai_link[1].name);
	184	aif2_dai = rtd->cpu_dai;
	185
68a02db4 MB	186	switch (event) {
	187	case SND_SOC_DAPM_PRE_PMU:
	188	ret = snd_soc_dai_set_pll(aif2_dai, WM8994_FLL2,
	189	WM8994_FLL_SRC_BCLK, 64 * 8000,
	190	8000 * 256);
	191	if (ret < 0) {
	192	pr_err("Failed to start FLL: %d\n", ret);
	193	return ret;
	194	}
	195
	196	ret = snd_soc_dai_set_sysclk(aif2_dai, WM8994_SYSCLK_FLL2,
	197	8000 * 256,
	198	SND_SOC_CLOCK_IN);
	199	if (ret < 0) {
	200	pr_err("Failed to set SYSCLK: %d\n", ret);
	201	return ret;
	202	}
	203	break;
	204	case SND_SOC_DAPM_POST_PMD:
	205	ret = snd_soc_dai_set_sysclk(aif2_dai, WM8994_SYSCLK_MCLK2,
	206	32768, SND_SOC_CLOCK_IN);
	207	if (ret < 0) {
	208	pr_err("Failed to switch away from FLL2: %d\n", ret);
	209	return ret;
	210	}
	211
	212	ret = snd_soc_dai_set_pll(aif2_dai, WM8994_FLL2,
	213	0, 0, 0);
	214	if (ret < 0) {
	215	pr_err("Failed to stop FLL2: %d\n", ret);
	216	return ret;
	217	}
	218	break;
	219	default:
	220	return -EINVAL;
	221	}
	222
	223	return 0;
	224	}
	225
31a2239a MB	226	static const struct snd_kcontrol_new controls[] = {
	227	SOC_DAPM_PIN_SWITCH("WM1250 Input"),
	228	SOC_DAPM_PIN_SWITCH("WM1250 Output"),
	229	};
	230
0a590b1d MB	231	static struct snd_soc_dapm_widget widgets[] = {
0a590b1d MB	232	SND_SOC_DAPM_HP("Headphone", NULL),
8f103167 MB	233
	234	SND_SOC_DAPM_MIC("AMIC", NULL),
	235	SND_SOC_DAPM_MIC("DMIC", NULL),
68a02db4 MB	236
	237	SND_SOC_DAPM_SUPPLY_S("Baseband Clock", -1, SND_SOC_NOPM, 0, 0,
	238	bbclk_ev,
	239	SND_SOC_DAPM_PRE_PMU \| SND_SOC_DAPM_POST_PMD),
0a590b1d MB	240	};
	241
	242	static struct snd_soc_dapm_route audio_paths[] = {
	243	{ "Headphone", NULL, "HPOUT1L" },
	244	{ "Headphone", NULL, "HPOUT1R" },
8f103167 MB	245
	246	{ "AMIC", NULL, "MICBIAS1" }, /* Default for AMICBIAS jumper */
	247	{ "IN1LN", NULL, "AMIC" },
	248
	249	{ "DMIC", NULL, "MICBIAS2" }, /* Default for DMICBIAS jumper */
	250	{ "DMIC1DAT", NULL, "DMIC" },
	251	{ "DMIC2DAT", NULL, "DMIC" },
68a02db4 MB	252
68a02db4 MB	253	{ "AIF2CLK", NULL, "Baseband Clock" },
0a590b1d MB	254	};
0a590b1d MB	255
f2e2026c MB	256	static struct snd_soc_jack littlemill_headset;
f2e2026c MB	257
0a590b1d MB	258	static int littlemill_late_probe(struct snd_soc_card *card)
0a590b1d MB	259	{
5015920a ML	260	struct snd_soc_pcm_runtime *rtd;
	261	struct snd_soc_codec *codec;
	262	struct snd_soc_dai *aif1_dai;
	263	struct snd_soc_dai *aif2_dai;
0a590b1d MB	264	int ret;
0a590b1d MB	265
5015920a ML	266	rtd = snd_soc_get_pcm_runtime(card, card->dai_link[0].name);
	267	codec = rtd->codec;
	268	aif1_dai = rtd->codec_dai;
	269
	270	rtd = snd_soc_get_pcm_runtime(card, card->dai_link[1].name);
	271	aif2_dai = rtd->cpu_dai;
	272
0cbe4b36 MB	273	ret = snd_soc_dai_set_sysclk(aif1_dai, WM8994_SYSCLK_MCLK2,
	274	32768, SND_SOC_CLOCK_IN);
	275	if (ret < 0)
	276	return ret;
	277
	278	ret = snd_soc_dai_set_sysclk(aif2_dai, WM8994_SYSCLK_MCLK2,
0a590b1d MB	279	32768, SND_SOC_CLOCK_IN);
	280	if (ret < 0)
	281	return ret;
	282
39ec5109 LPC	283	ret = snd_soc_card_jack_new(card, "Headset",
	284	SND_JACK_HEADSET \| SND_JACK_MECHANICAL \|
	285	SND_JACK_BTN_0 \| SND_JACK_BTN_1 \|
	286	SND_JACK_BTN_2 \| SND_JACK_BTN_3 \|
	287	SND_JACK_BTN_4 \| SND_JACK_BTN_5,
	288	&littlemill_headset, NULL, 0);
f2e2026c MB	289	if (ret)
	290	return ret;
	291
	292	/* This will check device compatibility itself */
98869f68	293	wm8958_mic_detect(codec, &littlemill_headset, NULL, NULL, NULL, NULL);
f2e2026c	294
654a28c9 MB	295	/* As will this */
	296	wm8994_mic_detect(codec, &littlemill_headset, 1);
	297
0a590b1d MB	298	return 0;
	299	}
	300
	301	static struct snd_soc_card littlemill = {
	302	.name = "Littlemill",
095d79dc	303	.owner = THIS_MODULE,
0a590b1d MB	304	.dai_link = littlemill_dai,
	305	.num_links = ARRAY_SIZE(littlemill_dai),
	306
	307	.set_bias_level = littlemill_set_bias_level,
	308	.set_bias_level_post = littlemill_set_bias_level_post,
	309
31a2239a MB	310	.controls = controls,
31a2239a MB	311	.num_controls = ARRAY_SIZE(controls),
0a590b1d MB	312	.dapm_widgets = widgets,
	313	.num_dapm_widgets = ARRAY_SIZE(widgets),
	314	.dapm_routes = audio_paths,
	315	.num_dapm_routes = ARRAY_SIZE(audio_paths),
	316
	317	.late_probe = littlemill_late_probe,
	318	};
	319
fdca21ad	320	static int littlemill_probe(struct platform_device *pdev)
0a590b1d MB	321	{
	322	struct snd_soc_card *card = &littlemill;
	323	int ret;
	324
	325	card->dev = &pdev->dev;
	326
c583883e TB	327	ret = devm_snd_soc_register_card(&pdev->dev, card);
c583883e TB	328	if (ret)
0a590b1d MB	329	dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
0a590b1d MB	330	ret);
0a590b1d	331
c583883e	332	return ret;
0a590b1d MB	333	}
	334
	335	static struct platform_driver littlemill_driver = {
	336	.driver = {
	337	.name = "littlemill",
0a590b1d MB	338	.pm = &snd_soc_pm_ops,
	339	},
	340	.probe = littlemill_probe,
0a590b1d MB	341	};
	342
	343	module_platform_driver(littlemill_driver);
	344
	345	MODULE_DESCRIPTION("Littlemill audio support");
	346	MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
	347	MODULE_LICENSE("GPL");
	348	MODULE_ALIAS("platform:littlemill");