sound/soc/samsung/bells.c - arm/linux-arm64-legacy - Git at Google

 /*
  * Bells audio support
  *
  * Copyright 2012 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/wm5102.h"
 #include "../codecs/wm9081.h"

 /* BCLK2 is fixed at this currently */
 #define BCLK2_RATE (64 * 8000)

 /*
  * Expect a 24.576MHz crystal if one is fitted (the driver will function
  * if this is not fitted).
  */
 #define MCLK_RATE 24576000

 #define SYS_AUDIO_RATE 44100
 #define SYS_MCLK_RATE  (SYS_AUDIO_RATE * 512)

 #define DAI_AP_DSP    0
 #define DAI_DSP_CODEC 1
 #define DAI_CODEC_CP  2
 #define DAI_CODEC_SUB 3

 struct bells_drvdata {
 	int sysclk_rate;
 	int asyncclk_rate;
 };

 static struct bells_drvdata wm2200_drvdata = {
 	.sysclk_rate = 22579200,
 };

 static struct bells_drvdata wm5102_drvdata = {
 	.sysclk_rate = 45158400,
 	.asyncclk_rate = 49152000,
 };

 static struct bells_drvdata wm5110_drvdata = {
 	.sysclk_rate = 135475200,
 	.asyncclk_rate = 147456000,
 };

 static int bells_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[DAI_DSP_CODEC].codec_dai;
 	struct snd_soc_codec *codec = codec_dai->codec;
 	struct bells_drvdata *bells = card->drvdata;
 	int ret;

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

 	switch (level) {
 	case SND_SOC_BIAS_PREPARE:
 		if (dapm->bias_level != SND_SOC_BIAS_STANDBY)
 			break;

 		ret = snd_soc_codec_set_pll(codec, WM5102_FLL1,
 					    ARIZONA_FLL_SRC_MCLK1,
 					    MCLK_RATE,
 					    bells->sysclk_rate);
 		if (ret < 0)
 			pr_err("Failed to start FLL: %d\n", ret);

 		if (bells->asyncclk_rate) {
 			ret = snd_soc_codec_set_pll(codec, WM5102_FLL2,
 						    ARIZONA_FLL_SRC_AIF2BCLK,
 						    BCLK2_RATE,
 						    bells->asyncclk_rate);
 			if (ret < 0)
 				pr_err("Failed to start FLL: %d\n", ret);
 		}
 		break;

 	default:
 		break;
 	}

 	return 0;
 }

 static int bells_set_bias_level_post(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[DAI_DSP_CODEC].codec_dai;
 	struct snd_soc_codec *codec = codec_dai->codec;
 	struct bells_drvdata *bells = card->drvdata;
 	int ret;

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

 	switch (level) {
 	case SND_SOC_BIAS_STANDBY:
 		ret = snd_soc_codec_set_pll(codec, WM5102_FLL1, 0, 0, 0);
 		if (ret < 0) {
 			pr_err("Failed to stop FLL: %d\n", ret);
 			return ret;
 		}

 		if (bells->asyncclk_rate) {
 			ret = snd_soc_codec_set_pll(codec, WM5102_FLL2,
 						    0, 0, 0);
 			if (ret < 0) {
 				pr_err("Failed to stop FLL: %d\n", ret);
 				return ret;
 			}
 		}
 		break;

 	default:
 		break;
 	}

 	dapm->bias_level = level;

 	return 0;
 }

 static int bells_late_probe(struct snd_soc_card *card)
 {
 	struct bells_drvdata *bells = card->drvdata;
 	struct snd_soc_codec *wm0010 = card->rtd[DAI_AP_DSP].codec;
 	struct snd_soc_codec *codec = card->rtd[DAI_DSP_CODEC].codec;
 	struct snd_soc_dai *aif1_dai = card->rtd[DAI_DSP_CODEC].codec_dai;
 	struct snd_soc_dai *aif2_dai;
 	struct snd_soc_dai *aif3_dai;
 	struct snd_soc_dai *wm9081_dai;
 	int ret;

 	ret = snd_soc_codec_set_sysclk(codec, ARIZONA_CLK_SYSCLK,
 				       ARIZONA_CLK_SRC_FLL1,
 				       bells->sysclk_rate,
 				       SND_SOC_CLOCK_IN);
 	if (ret != 0) {
 		dev_err(codec->dev, "Failed to set SYSCLK: %d\n", ret);
 		return ret;
 	}

 	ret = snd_soc_codec_set_sysclk(wm0010, 0, 0, SYS_MCLK_RATE, 0);
 	if (ret != 0) {
 		dev_err(wm0010->dev, "Failed to set WM0010 clock: %d\n", ret);
 		return ret;
 	}

 	ret = snd_soc_dai_set_sysclk(aif1_dai, ARIZONA_CLK_SYSCLK, 0, 0);
 	if (ret != 0)
 		dev_err(aif1_dai->dev, "Failed to set AIF1 clock: %d\n", ret);

 	ret = snd_soc_codec_set_sysclk(codec, ARIZONA_CLK_OPCLK, 0,
 				       SYS_MCLK_RATE, SND_SOC_CLOCK_OUT);
 	if (ret != 0)
 		dev_err(codec->dev, "Failed to set OPCLK: %d\n", ret);

 	if (card->num_rtd == DAI_CODEC_CP)
 		return 0;

 	ret = snd_soc_codec_set_sysclk(codec, ARIZONA_CLK_ASYNCCLK,
 				       ARIZONA_CLK_SRC_FLL2,
 				       bells->asyncclk_rate,
 				       SND_SOC_CLOCK_IN);
 	if (ret != 0) {
 		dev_err(codec->dev, "Failed to set ASYNCCLK: %d\n", ret);
 		return ret;
 	}

 	aif2_dai = card->rtd[DAI_CODEC_CP].cpu_dai;

 	ret = snd_soc_dai_set_sysclk(aif2_dai, ARIZONA_CLK_ASYNCCLK, 0, 0);
 	if (ret != 0) {
 		dev_err(aif2_dai->dev, "Failed to set AIF2 clock: %d\n", ret);
 		return ret;
 	}

 	if (card->num_rtd == DAI_CODEC_SUB)
 		return 0;

 	aif3_dai = card->rtd[DAI_CODEC_SUB].cpu_dai;
 	wm9081_dai = card->rtd[DAI_CODEC_SUB].codec_dai;

 	ret = snd_soc_dai_set_sysclk(aif3_dai, ARIZONA_CLK_SYSCLK, 0, 0);
 	if (ret != 0) {
 		dev_err(aif1_dai->dev, "Failed to set AIF1 clock: %d\n", ret);
 		return ret;
 	}

 	ret = snd_soc_codec_set_sysclk(wm9081_dai->codec, WM9081_SYSCLK_MCLK,
 				       0, SYS_MCLK_RATE, 0);
 	if (ret != 0) {
 		dev_err(wm9081_dai->dev, "Failed to set MCLK: %d\n", ret);
 		return ret;
 	}

 	return 0;
 }

 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 const struct snd_soc_pcm_stream sub_params = {
 	.formats = SNDRV_PCM_FMTBIT_S32_LE,
 	.rate_min = SYS_AUDIO_RATE,
 	.rate_max = SYS_AUDIO_RATE,
 	.channels_min = 2,
 	.channels_max = 2,
 };

 static struct snd_soc_dai_link bells_dai_wm2200[] = {
 	{
 		.name = "CPU-DSP",
 		.stream_name = "CPU-DSP",
 		.cpu_dai_name = "samsung-i2s.0",
 		.codec_dai_name = "wm0010-sdi1",
 		.platform_name = "samsung-i2s.0",
 		.codec_name = "spi0.0",
 		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
 				| SND_SOC_DAIFMT_CBM_CFM,
 	},
 	{
 		.name = "DSP-CODEC",
 		.stream_name = "DSP-CODEC",
 		.cpu_dai_name = "wm0010-sdi2",
 		.codec_dai_name = "wm2200",
 		.codec_name = "wm2200.1-003a",
 		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
 				| SND_SOC_DAIFMT_CBM_CFM,
 		.params = &sub_params,
 		.ignore_suspend = 1,
 	},
 };

 static struct snd_soc_dai_link bells_dai_wm5102[] = {
 	{
 		.name = "CPU-DSP",
 		.stream_name = "CPU-DSP",
 		.cpu_dai_name = "samsung-i2s.0",
 		.codec_dai_name = "wm0010-sdi1",
 		.platform_name = "samsung-i2s.0",
 		.codec_name = "spi0.0",
 		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
 				| SND_SOC_DAIFMT_CBM_CFM,
 	},
 	{
 		.name = "DSP-CODEC",
 		.stream_name = "DSP-CODEC",
 		.cpu_dai_name = "wm0010-sdi2",
 		.codec_dai_name = "wm5102-aif1",
 		.codec_name = "wm5102-codec",
 		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
 				| SND_SOC_DAIFMT_CBM_CFM,
 		.params = &sub_params,
 		.ignore_suspend = 1,
 	},
 	{
 		.name = "Baseband",
 		.stream_name = "Baseband",
 		.cpu_dai_name = "wm5102-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,
 	},
 	{
 		.name = "Sub",
 		.stream_name = "Sub",
 		.cpu_dai_name = "wm5102-aif3",
 		.codec_dai_name = "wm9081-hifi",
 		.codec_name = "wm9081.1-006c",
 		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
 				| SND_SOC_DAIFMT_CBS_CFS,
 		.ignore_suspend = 1,
 		.params = &sub_params,
 	},
 };

 static struct snd_soc_dai_link bells_dai_wm5110[] = {
 	{
 		.name = "CPU-DSP",
 		.stream_name = "CPU-DSP",
 		.cpu_dai_name = "samsung-i2s.0",
 		.codec_dai_name = "wm0010-sdi1",
 		.platform_name = "samsung-i2s.0",
 		.codec_name = "spi0.0",
 		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
 				| SND_SOC_DAIFMT_CBM_CFM,
 	},
 	{
 		.name = "DSP-CODEC",
 		.stream_name = "DSP-CODEC",
 		.cpu_dai_name = "wm0010-sdi2",
 		.codec_dai_name = "wm5110-aif1",
 		.codec_name = "wm5110-codec",
 		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
 				| SND_SOC_DAIFMT_CBM_CFM,
 		.params = &sub_params,
 		.ignore_suspend = 1,
 	},
 	{
 		.name = "Baseband",
 		.stream_name = "Baseband",
 		.cpu_dai_name = "wm5110-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,
 	},
 	{
 		.name = "Sub",
 		.stream_name = "Sub",
 		.cpu_dai_name = "wm5110-aif3",
 		.codec_dai_name = "wm9081-hifi",
 		.codec_name = "wm9081.1-006c",
 		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF
 				| SND_SOC_DAIFMT_CBS_CFS,
 		.ignore_suspend = 1,
 		.params = &sub_params,
 	},
 };

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

 static struct snd_soc_dapm_widget bells_widgets[] = {
 	SND_SOC_DAPM_MIC("DMIC", NULL),
 };

 static struct snd_soc_dapm_route bells_routes[] = {
 	{ "Sub CLK_SYS", NULL, "OPCLK" },
 	{ "CLKIN", NULL, "OPCLK" },

 	{ "DMIC", NULL, "MICBIAS2" },
 	{ "IN2L", NULL, "DMIC" },
 	{ "IN2R", NULL, "DMIC" },
 };

 static struct snd_soc_card bells_cards[] = {
 	{
 		.name = "Bells WM2200",
 		.owner = THIS_MODULE,
 		.dai_link = bells_dai_wm2200,
 		.num_links = ARRAY_SIZE(bells_dai_wm2200),
 		.codec_conf = bells_codec_conf,
 		.num_configs = ARRAY_SIZE(bells_codec_conf),

 		.late_probe = bells_late_probe,

 		.dapm_widgets = bells_widgets,
 		.num_dapm_widgets = ARRAY_SIZE(bells_widgets),
 		.dapm_routes = bells_routes,
 		.num_dapm_routes = ARRAY_SIZE(bells_routes),

 		.set_bias_level = bells_set_bias_level,
 		.set_bias_level_post = bells_set_bias_level_post,

 		.drvdata = &wm2200_drvdata,
 	},
 	{
 		.name = "Bells WM5102",
 		.owner = THIS_MODULE,
 		.dai_link = bells_dai_wm5102,
 		.num_links = ARRAY_SIZE(bells_dai_wm5102),
 		.codec_conf = bells_codec_conf,
 		.num_configs = ARRAY_SIZE(bells_codec_conf),

 		.late_probe = bells_late_probe,

 		.dapm_widgets = bells_widgets,
 		.num_dapm_widgets = ARRAY_SIZE(bells_widgets),
 		.dapm_routes = bells_routes,
 		.num_dapm_routes = ARRAY_SIZE(bells_routes),

 		.set_bias_level = bells_set_bias_level,
 		.set_bias_level_post = bells_set_bias_level_post,

 		.drvdata = &wm5102_drvdata,
 	},
 	{
 		.name = "Bells WM5110",
 		.owner = THIS_MODULE,
 		.dai_link = bells_dai_wm5110,
 		.num_links = ARRAY_SIZE(bells_dai_wm5110),
 		.codec_conf = bells_codec_conf,
 		.num_configs = ARRAY_SIZE(bells_codec_conf),

 		.late_probe = bells_late_probe,

 		.dapm_widgets = bells_widgets,
 		.num_dapm_widgets = ARRAY_SIZE(bells_widgets),
 		.dapm_routes = bells_routes,
 		.num_dapm_routes = ARRAY_SIZE(bells_routes),

 		.set_bias_level = bells_set_bias_level,
 		.set_bias_level_post = bells_set_bias_level_post,

 		.drvdata = &wm5110_drvdata,
 	},
 };


 static int bells_probe(struct platform_device *pdev)
 {
 	int ret;

 	bells_cards[pdev->id].dev = &pdev->dev;

 	ret = devm_snd_soc_register_card(&pdev->dev, &bells_cards[pdev->id]);
 	if (ret)
 		dev_err(&pdev->dev,
 			"snd_soc_register_card(%s) failed: %d\n",
 			bells_cards[pdev->id].name, ret);

 	return ret;
 }

 static struct platform_driver bells_driver = {
 	.driver = {
 		.name = "bells",
 		.owner = THIS_MODULE,
 		.pm = &snd_soc_pm_ops,
 	},
 	.probe = bells_probe,
 };

 module_platform_driver(bells_driver);

 MODULE_DESCRIPTION("Bells audio support");
 MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
 MODULE_LICENSE("GPL");
 MODULE_ALIAS("platform:bells");
	/*
	* Bells audio support
	*
	* Copyright 2012 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/wm5102.h"
	#include "../codecs/wm9081.h"

	/* BCLK2 is fixed at this currently */
	#define BCLK2_RATE (64 * 8000)

	/*
	* Expect a 24.576MHz crystal if one is fitted (the driver will function
	* if this is not fitted).
	*/
	#define MCLK_RATE 24576000

	#define SYS_AUDIO_RATE 44100
	#define SYS_MCLK_RATE (SYS_AUDIO_RATE * 512)

	#define DAI_AP_DSP 0
	#define DAI_DSP_CODEC 1
	#define DAI_CODEC_CP 2
	#define DAI_CODEC_SUB 3

	struct bells_drvdata {
	int sysclk_rate;
	int asyncclk_rate;
	};

	static struct bells_drvdata wm2200_drvdata = {
	.sysclk_rate = 22579200,
	};

	static struct bells_drvdata wm5102_drvdata = {
	.sysclk_rate = 45158400,
	.asyncclk_rate = 49152000,
	};

	static struct bells_drvdata wm5110_drvdata = {
	.sysclk_rate = 135475200,
	.asyncclk_rate = 147456000,
	};

	static int bells_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[DAI_DSP_CODEC].codec_dai;
	struct snd_soc_codec *codec = codec_dai->codec;
	struct bells_drvdata *bells = card->drvdata;
	int ret;

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

	switch (level) {
	case SND_SOC_BIAS_PREPARE:
	if (dapm->bias_level != SND_SOC_BIAS_STANDBY)
	break;

	ret = snd_soc_codec_set_pll(codec, WM5102_FLL1,
	ARIZONA_FLL_SRC_MCLK1,
	MCLK_RATE,
	bells->sysclk_rate);
	if (ret < 0)
	pr_err("Failed to start FLL: %d\n", ret);

	if (bells->asyncclk_rate) {
	ret = snd_soc_codec_set_pll(codec, WM5102_FLL2,
	ARIZONA_FLL_SRC_AIF2BCLK,
	BCLK2_RATE,
	bells->asyncclk_rate);
	if (ret < 0)
	pr_err("Failed to start FLL: %d\n", ret);
	}
	break;

	default:
	break;
	}

	return 0;
	}

	static int bells_set_bias_level_post(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[DAI_DSP_CODEC].codec_dai;
	struct snd_soc_codec *codec = codec_dai->codec;
	struct bells_drvdata *bells = card->drvdata;
	int ret;

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

	switch (level) {
	case SND_SOC_BIAS_STANDBY:
	ret = snd_soc_codec_set_pll(codec, WM5102_FLL1, 0, 0, 0);
	if (ret < 0) {
	pr_err("Failed to stop FLL: %d\n", ret);
	return ret;
	}

	if (bells->asyncclk_rate) {
	ret = snd_soc_codec_set_pll(codec, WM5102_FLL2,
	0, 0, 0);
	if (ret < 0) {
	pr_err("Failed to stop FLL: %d\n", ret);
	return ret;
	}
	}
	break;

	default:
	break;
	}

	dapm->bias_level = level;

	return 0;
	}

	static int bells_late_probe(struct snd_soc_card *card)
	{
	struct bells_drvdata *bells = card->drvdata;
	struct snd_soc_codec *wm0010 = card->rtd[DAI_AP_DSP].codec;
	struct snd_soc_codec *codec = card->rtd[DAI_DSP_CODEC].codec;
	struct snd_soc_dai *aif1_dai = card->rtd[DAI_DSP_CODEC].codec_dai;
	struct snd_soc_dai *aif2_dai;
	struct snd_soc_dai *aif3_dai;
	struct snd_soc_dai *wm9081_dai;
	int ret;

	ret = snd_soc_codec_set_sysclk(codec, ARIZONA_CLK_SYSCLK,
	ARIZONA_CLK_SRC_FLL1,
	bells->sysclk_rate,
	SND_SOC_CLOCK_IN);
	if (ret != 0) {
	dev_err(codec->dev, "Failed to set SYSCLK: %d\n", ret);
	return ret;
	}

	ret = snd_soc_codec_set_sysclk(wm0010, 0, 0, SYS_MCLK_RATE, 0);
	if (ret != 0) {
	dev_err(wm0010->dev, "Failed to set WM0010 clock: %d\n", ret);
	return ret;
	}

	ret = snd_soc_dai_set_sysclk(aif1_dai, ARIZONA_CLK_SYSCLK, 0, 0);
	if (ret != 0)
	dev_err(aif1_dai->dev, "Failed to set AIF1 clock: %d\n", ret);

	ret = snd_soc_codec_set_sysclk(codec, ARIZONA_CLK_OPCLK, 0,
	SYS_MCLK_RATE, SND_SOC_CLOCK_OUT);
	if (ret != 0)
	dev_err(codec->dev, "Failed to set OPCLK: %d\n", ret);

	if (card->num_rtd == DAI_CODEC_CP)
	return 0;

	ret = snd_soc_codec_set_sysclk(codec, ARIZONA_CLK_ASYNCCLK,
	ARIZONA_CLK_SRC_FLL2,
	bells->asyncclk_rate,
	SND_SOC_CLOCK_IN);
	if (ret != 0) {
	dev_err(codec->dev, "Failed to set ASYNCCLK: %d\n", ret);
	return ret;
	}

	aif2_dai = card->rtd[DAI_CODEC_CP].cpu_dai;

	ret = snd_soc_dai_set_sysclk(aif2_dai, ARIZONA_CLK_ASYNCCLK, 0, 0);
	if (ret != 0) {
	dev_err(aif2_dai->dev, "Failed to set AIF2 clock: %d\n", ret);
	return ret;
	}

	if (card->num_rtd == DAI_CODEC_SUB)
	return 0;

	aif3_dai = card->rtd[DAI_CODEC_SUB].cpu_dai;
	wm9081_dai = card->rtd[DAI_CODEC_SUB].codec_dai;

	ret = snd_soc_dai_set_sysclk(aif3_dai, ARIZONA_CLK_SYSCLK, 0, 0);
	if (ret != 0) {
	dev_err(aif1_dai->dev, "Failed to set AIF1 clock: %d\n", ret);
	return ret;
	}

	ret = snd_soc_codec_set_sysclk(wm9081_dai->codec, WM9081_SYSCLK_MCLK,
	0, SYS_MCLK_RATE, 0);
	if (ret != 0) {
	dev_err(wm9081_dai->dev, "Failed to set MCLK: %d\n", ret);
	return ret;
	}

	return 0;
	}

	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 const struct snd_soc_pcm_stream sub_params = {
	.formats = SNDRV_PCM_FMTBIT_S32_LE,
	.rate_min = SYS_AUDIO_RATE,
	.rate_max = SYS_AUDIO_RATE,
	.channels_min = 2,
	.channels_max = 2,
	};

	static struct snd_soc_dai_link bells_dai_wm2200[] = {
	{
	.name = "CPU-DSP",
	.stream_name = "CPU-DSP",
	.cpu_dai_name = "samsung-i2s.0",
	.codec_dai_name = "wm0010-sdi1",
	.platform_name = "samsung-i2s.0",
	.codec_name = "spi0.0",
	.dai_fmt = SND_SOC_DAIFMT_I2S \| SND_SOC_DAIFMT_NB_NF
	\| SND_SOC_DAIFMT_CBM_CFM,
	},
	{
	.name = "DSP-CODEC",
	.stream_name = "DSP-CODEC",
	.cpu_dai_name = "wm0010-sdi2",
	.codec_dai_name = "wm2200",
	.codec_name = "wm2200.1-003a",
	.dai_fmt = SND_SOC_DAIFMT_I2S \| SND_SOC_DAIFMT_NB_NF
	\| SND_SOC_DAIFMT_CBM_CFM,
	.params = &sub_params,
	.ignore_suspend = 1,
	},
	};

	static struct snd_soc_dai_link bells_dai_wm5102[] = {
	{
	.name = "CPU-DSP",
	.stream_name = "CPU-DSP",
	.cpu_dai_name = "samsung-i2s.0",
	.codec_dai_name = "wm0010-sdi1",
	.platform_name = "samsung-i2s.0",
	.codec_name = "spi0.0",
	.dai_fmt = SND_SOC_DAIFMT_I2S \| SND_SOC_DAIFMT_NB_NF
	\| SND_SOC_DAIFMT_CBM_CFM,
	},
	{
	.name = "DSP-CODEC",
	.stream_name = "DSP-CODEC",
	.cpu_dai_name = "wm0010-sdi2",
	.codec_dai_name = "wm5102-aif1",
	.codec_name = "wm5102-codec",
	.dai_fmt = SND_SOC_DAIFMT_I2S \| SND_SOC_DAIFMT_NB_NF
	\| SND_SOC_DAIFMT_CBM_CFM,
	.params = &sub_params,
	.ignore_suspend = 1,
	},
	{
	.name = "Baseband",
	.stream_name = "Baseband",
	.cpu_dai_name = "wm5102-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,
	},
	{
	.name = "Sub",
	.stream_name = "Sub",
	.cpu_dai_name = "wm5102-aif3",
	.codec_dai_name = "wm9081-hifi",
	.codec_name = "wm9081.1-006c",
	.dai_fmt = SND_SOC_DAIFMT_I2S \| SND_SOC_DAIFMT_NB_NF
	\| SND_SOC_DAIFMT_CBS_CFS,
	.ignore_suspend = 1,
	.params = &sub_params,
	},
	};

	static struct snd_soc_dai_link bells_dai_wm5110[] = {
	{
	.name = "CPU-DSP",
	.stream_name = "CPU-DSP",
	.cpu_dai_name = "samsung-i2s.0",
	.codec_dai_name = "wm0010-sdi1",
	.platform_name = "samsung-i2s.0",
	.codec_name = "spi0.0",
	.dai_fmt = SND_SOC_DAIFMT_I2S \| SND_SOC_DAIFMT_NB_NF
	\| SND_SOC_DAIFMT_CBM_CFM,
	},
	{
	.name = "DSP-CODEC",
	.stream_name = "DSP-CODEC",
	.cpu_dai_name = "wm0010-sdi2",
	.codec_dai_name = "wm5110-aif1",
	.codec_name = "wm5110-codec",
	.dai_fmt = SND_SOC_DAIFMT_I2S \| SND_SOC_DAIFMT_NB_NF
	\| SND_SOC_DAIFMT_CBM_CFM,
	.params = &sub_params,
	.ignore_suspend = 1,
	},
	{
	.name = "Baseband",
	.stream_name = "Baseband",
	.cpu_dai_name = "wm5110-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,
	},
	{
	.name = "Sub",
	.stream_name = "Sub",
	.cpu_dai_name = "wm5110-aif3",
	.codec_dai_name = "wm9081-hifi",
	.codec_name = "wm9081.1-006c",
	.dai_fmt = SND_SOC_DAIFMT_I2S \| SND_SOC_DAIFMT_NB_NF
	\| SND_SOC_DAIFMT_CBS_CFS,
	.ignore_suspend = 1,
	.params = &sub_params,
	},
	};

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

	static struct snd_soc_dapm_widget bells_widgets[] = {
	SND_SOC_DAPM_MIC("DMIC", NULL),
	};

	static struct snd_soc_dapm_route bells_routes[] = {
	{ "Sub CLK_SYS", NULL, "OPCLK" },
	{ "CLKIN", NULL, "OPCLK" },

	{ "DMIC", NULL, "MICBIAS2" },
	{ "IN2L", NULL, "DMIC" },
	{ "IN2R", NULL, "DMIC" },
	};

	static struct snd_soc_card bells_cards[] = {
	{
	.name = "Bells WM2200",
	.owner = THIS_MODULE,
	.dai_link = bells_dai_wm2200,
	.num_links = ARRAY_SIZE(bells_dai_wm2200),
	.codec_conf = bells_codec_conf,
	.num_configs = ARRAY_SIZE(bells_codec_conf),

	.late_probe = bells_late_probe,

	.dapm_widgets = bells_widgets,
	.num_dapm_widgets = ARRAY_SIZE(bells_widgets),
	.dapm_routes = bells_routes,
	.num_dapm_routes = ARRAY_SIZE(bells_routes),

	.set_bias_level = bells_set_bias_level,
	.set_bias_level_post = bells_set_bias_level_post,

	.drvdata = &wm2200_drvdata,
	},
	{
	.name = "Bells WM5102",
	.owner = THIS_MODULE,
	.dai_link = bells_dai_wm5102,
	.num_links = ARRAY_SIZE(bells_dai_wm5102),
	.codec_conf = bells_codec_conf,
	.num_configs = ARRAY_SIZE(bells_codec_conf),

	.late_probe = bells_late_probe,

	.dapm_widgets = bells_widgets,
	.num_dapm_widgets = ARRAY_SIZE(bells_widgets),
	.dapm_routes = bells_routes,
	.num_dapm_routes = ARRAY_SIZE(bells_routes),

	.set_bias_level = bells_set_bias_level,
	.set_bias_level_post = bells_set_bias_level_post,

	.drvdata = &wm5102_drvdata,
	},
	{
	.name = "Bells WM5110",
	.owner = THIS_MODULE,
	.dai_link = bells_dai_wm5110,
	.num_links = ARRAY_SIZE(bells_dai_wm5110),
	.codec_conf = bells_codec_conf,
	.num_configs = ARRAY_SIZE(bells_codec_conf),

	.late_probe = bells_late_probe,

	.dapm_widgets = bells_widgets,
	.num_dapm_widgets = ARRAY_SIZE(bells_widgets),
	.dapm_routes = bells_routes,
	.num_dapm_routes = ARRAY_SIZE(bells_routes),

	.set_bias_level = bells_set_bias_level,
	.set_bias_level_post = bells_set_bias_level_post,

	.drvdata = &wm5110_drvdata,
	},
	};


	static int bells_probe(struct platform_device *pdev)
	{
	int ret;

	bells_cards[pdev->id].dev = &pdev->dev;

	ret = devm_snd_soc_register_card(&pdev->dev, &bells_cards[pdev->id]);
	if (ret)
	dev_err(&pdev->dev,
	"snd_soc_register_card(%s) failed: %d\n",
	bells_cards[pdev->id].name, ret);

	return ret;
	}

	static struct platform_driver bells_driver = {
	.driver = {
	.name = "bells",
	.owner = THIS_MODULE,
	.pm = &snd_soc_pm_ops,
	},
	.probe = bells_probe,
	};

	module_platform_driver(bells_driver);

	MODULE_DESCRIPTION("Bells audio support");
	MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
	MODULE_LICENSE("GPL");
	MODULE_ALIAS("platform:bells");