sound/soc/codecs/zx_aud96p22.c - linux - Git at Google

 /*
  * Copyright (C) 2017 Sanechips Technology Co., Ltd.
  * Copyright 2017 Linaro Ltd.
  *
  * Author: Baoyou Xie <baoyou.xie@linaro.org>
  *
  * 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.
  */

 #include <linux/gpio/consumer.h>
 #include <linux/i2c.h>
 #include <linux/module.h>
 #include <linux/regmap.h>
 #include <sound/pcm.h>
 #include <sound/pcm_params.h>
 #include <sound/soc.h>
 #include <sound/soc-dai.h>
 #include <sound/tlv.h>

 #define AUD96P22_RESET			0x00
 #define RST_DAC_DPZ			BIT(0)
 #define RST_ADC_DPZ			BIT(1)
 #define AUD96P22_I2S1_CONFIG_0		0x03
 #define I2S1_MS_MODE			BIT(3)
 #define I2S1_MODE_MASK			0x7
 #define I2S1_MODE_RIGHT_J		0x0
 #define I2S1_MODE_I2S			0x1
 #define I2S1_MODE_LEFT_J		0x2
 #define AUD96P22_PD_0			0x15
 #define AUD96P22_PD_1			0x16
 #define AUD96P22_PD_3			0x18
 #define AUD96P22_PD_4			0x19
 #define AUD96P22_MUTE_0			0x1d
 #define AUD96P22_MUTE_2			0x1f
 #define AUD96P22_MUTE_4			0x21
 #define AUD96P22_RECVOL_0		0x24
 #define AUD96P22_RECVOL_1		0x25
 #define AUD96P22_PGA1VOL_0		0x26
 #define AUD96P22_PGA1VOL_1		0x27
 #define AUD96P22_LMVOL_0		0x34
 #define AUD96P22_LMVOL_1		0x35
 #define AUD96P22_HS1VOL_0		0x38
 #define AUD96P22_HS1VOL_1		0x39
 #define AUD96P22_PGA1SEL_0		0x47
 #define AUD96P22_PGA1SEL_1		0x48
 #define AUD96P22_LDR1SEL_0		0x59
 #define AUD96P22_LDR1SEL_1		0x60
 #define AUD96P22_LDR2SEL_0		0x5d
 #define AUD96P22_REG_MAX		0xfb

 struct aud96p22_priv {
 	struct regmap *regmap;
 };

 static int aud96p22_adc_event(struct snd_soc_dapm_widget *w,
 			      struct snd_kcontrol *kcontrol, int event)
 {
 	struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
 	struct aud96p22_priv *priv = snd_soc_component_get_drvdata(component);
 	struct regmap *regmap = priv->regmap;

 	if (event != SND_SOC_DAPM_POST_PMU)
 		return -EINVAL;

 	/* Assert/de-assert the bit to reset ADC data path  */
 	regmap_update_bits(regmap, AUD96P22_RESET, RST_ADC_DPZ, 0);
 	regmap_update_bits(regmap, AUD96P22_RESET, RST_ADC_DPZ, RST_ADC_DPZ);

 	return 0;
 }

 static int aud96p22_dac_event(struct snd_soc_dapm_widget *w,
 			      struct snd_kcontrol *kcontrol, int event)
 {
 	struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
 	struct aud96p22_priv *priv = snd_soc_component_get_drvdata(component);
 	struct regmap *regmap = priv->regmap;

 	if (event != SND_SOC_DAPM_POST_PMU)
 		return -EINVAL;

 	/* Assert/de-assert the bit to reset DAC data path  */
 	regmap_update_bits(regmap, AUD96P22_RESET, RST_DAC_DPZ, 0);
 	regmap_update_bits(regmap, AUD96P22_RESET, RST_DAC_DPZ, RST_DAC_DPZ);

 	return 0;
 }

 static const DECLARE_TLV_DB_SCALE(lm_tlv, -11550, 50, 0);
 static const DECLARE_TLV_DB_SCALE(hs_tlv, -3900, 300, 0);
 static const DECLARE_TLV_DB_SCALE(rec_tlv, -9550, 50, 0);
 static const DECLARE_TLV_DB_SCALE(pga_tlv, -1800, 100, 0);

 static const struct snd_kcontrol_new aud96p22_snd_controls[] = {
 	/* Volume control */
 	SOC_DOUBLE_R_TLV("Master Playback Volume", AUD96P22_LMVOL_0,
 			 AUD96P22_LMVOL_1, 0, 0xff, 0, lm_tlv),
 	SOC_DOUBLE_R_TLV("Headphone Volume", AUD96P22_HS1VOL_0,
 			 AUD96P22_HS1VOL_1, 0, 0xf, 0, hs_tlv),
 	SOC_DOUBLE_R_TLV("Master Capture Volume", AUD96P22_RECVOL_0,
 			 AUD96P22_RECVOL_1, 0, 0xff, 0, rec_tlv),
 	SOC_DOUBLE_R_TLV("Analogue Capture Volume", AUD96P22_PGA1VOL_0,
 			 AUD96P22_PGA1VOL_1, 0, 0x37, 0, pga_tlv),

 	/* Mute control */
 	SOC_DOUBLE("Master Playback Switch", AUD96P22_MUTE_2, 0, 1, 1, 1),
 	SOC_DOUBLE("Headphone Switch", AUD96P22_MUTE_2, 4, 5, 1, 1),
 	SOC_DOUBLE("Line Out Switch", AUD96P22_MUTE_4, 0, 1, 1, 1),
 	SOC_DOUBLE("Speaker Switch", AUD96P22_MUTE_4, 2, 3, 1, 1),
 	SOC_DOUBLE("Master Capture Switch", AUD96P22_MUTE_0, 0, 1, 1, 1),
 	SOC_DOUBLE("Analogue Capture Switch", AUD96P22_MUTE_0, 2, 3, 1, 1),
 };

 /* Input mux kcontrols */
 static const unsigned int ain_mux_values[] = {
 	0, 1, 3, 4, 5,
 };

 static const char * const ainl_mux_texts[] = {
 	"AINL1 differential",
 	"AINL1 single-ended",
 	"AINL3 single-ended",
 	"AINL2 differential",
 	"AINL2 single-ended",
 };

 static const char * const ainr_mux_texts[] = {
 	"AINR1 differential",
 	"AINR1 single-ended",
 	"AINR3 single-ended",
 	"AINR2 differential",
 	"AINR2 single-ended",
 };

 static SOC_VALUE_ENUM_SINGLE_DECL(ainl_mux_enum, AUD96P22_PGA1SEL_0,
 				  0, 0x7, ainl_mux_texts, ain_mux_values);
 static SOC_VALUE_ENUM_SINGLE_DECL(ainr_mux_enum, AUD96P22_PGA1SEL_1,
 				  0, 0x7, ainr_mux_texts, ain_mux_values);

 static const struct snd_kcontrol_new ainl_mux_kcontrol =
 			SOC_DAPM_ENUM("AINL Mux", ainl_mux_enum);
 static const struct snd_kcontrol_new ainr_mux_kcontrol =
 			SOC_DAPM_ENUM("AINR Mux", ainr_mux_enum);

 /* Output mixer kcontrols */
 static const struct snd_kcontrol_new ld1_left_kcontrols[] = {
 	SOC_DAPM_SINGLE("DACL LD1L Switch", AUD96P22_LDR1SEL_0, 0, 1, 0),
 	SOC_DAPM_SINGLE("AINL LD1L Switch", AUD96P22_LDR1SEL_0, 1, 1, 0),
 	SOC_DAPM_SINGLE("AINR LD1L Switch", AUD96P22_LDR1SEL_0, 2, 1, 0),
 };

 static const struct snd_kcontrol_new ld1_right_kcontrols[] = {
 	SOC_DAPM_SINGLE("DACR LD1R Switch", AUD96P22_LDR1SEL_1, 8, 1, 0),
 	SOC_DAPM_SINGLE("AINR LD1R Switch", AUD96P22_LDR1SEL_1, 9, 1, 0),
 	SOC_DAPM_SINGLE("AINL LD1R Switch", AUD96P22_LDR1SEL_1, 10, 1, 0),
 };

 static const struct snd_kcontrol_new ld2_kcontrols[] = {
 	SOC_DAPM_SINGLE("DACL LD2 Switch", AUD96P22_LDR2SEL_0, 0, 1, 0),
 	SOC_DAPM_SINGLE("AINL LD2 Switch", AUD96P22_LDR2SEL_0, 1, 1, 0),
 	SOC_DAPM_SINGLE("DACR LD2 Switch", AUD96P22_LDR2SEL_0, 2, 1, 0),
 };

 static const struct snd_soc_dapm_widget aud96p22_dapm_widgets[] = {
 	/* Overall power bit */
 	SND_SOC_DAPM_SUPPLY("POWER", AUD96P22_PD_0, 0, 0, NULL, 0),

 	/* Input pins */
 	SND_SOC_DAPM_INPUT("AINL1P"),
 	SND_SOC_DAPM_INPUT("AINL2P"),
 	SND_SOC_DAPM_INPUT("AINL3"),
 	SND_SOC_DAPM_INPUT("AINL1N"),
 	SND_SOC_DAPM_INPUT("AINL2N"),
 	SND_SOC_DAPM_INPUT("AINR2N"),
 	SND_SOC_DAPM_INPUT("AINR1N"),
 	SND_SOC_DAPM_INPUT("AINR3"),
 	SND_SOC_DAPM_INPUT("AINR2P"),
 	SND_SOC_DAPM_INPUT("AINR1P"),

 	/* Input muxes */
 	SND_SOC_DAPM_MUX("AINLMUX", AUD96P22_PD_1, 2, 0, &ainl_mux_kcontrol),
 	SND_SOC_DAPM_MUX("AINRMUX", AUD96P22_PD_1, 3, 0, &ainr_mux_kcontrol),

 	/* ADCs */
 	SND_SOC_DAPM_ADC_E("ADCL", "Capture Left", AUD96P22_PD_1, 0, 0,
 			   aud96p22_adc_event, SND_SOC_DAPM_POST_PMU),
 	SND_SOC_DAPM_ADC_E("ADCR", "Capture Right", AUD96P22_PD_1, 1, 0,
 			   aud96p22_adc_event, SND_SOC_DAPM_POST_PMU),

 	/* DACs */
 	SND_SOC_DAPM_DAC_E("DACL", "Playback Left", AUD96P22_PD_3, 0, 0,
 			   aud96p22_dac_event, SND_SOC_DAPM_POST_PMU),
 	SND_SOC_DAPM_DAC_E("DACR", "Playback Right", AUD96P22_PD_3, 1, 0,
 			   aud96p22_dac_event, SND_SOC_DAPM_POST_PMU),

 	/* Output mixers */
 	SND_SOC_DAPM_MIXER("LD1L", AUD96P22_PD_3, 6, 0, ld1_left_kcontrols,
 			   ARRAY_SIZE(ld1_left_kcontrols)),
 	SND_SOC_DAPM_MIXER("LD1R", AUD96P22_PD_3, 7, 0, ld1_right_kcontrols,
 			   ARRAY_SIZE(ld1_right_kcontrols)),
 	SND_SOC_DAPM_MIXER("LD2", AUD96P22_PD_4, 2, 0, ld2_kcontrols,
 			   ARRAY_SIZE(ld2_kcontrols)),

 	/* Headset power switch */
 	SND_SOC_DAPM_SUPPLY("HS1L", AUD96P22_PD_3, 4, 0, NULL, 0),
 	SND_SOC_DAPM_SUPPLY("HS1R", AUD96P22_PD_3, 5, 0, NULL, 0),

 	/* Output pins */
 	SND_SOC_DAPM_OUTPUT("HSOUTL"),
 	SND_SOC_DAPM_OUTPUT("LINEOUTL"),
 	SND_SOC_DAPM_OUTPUT("LINEOUTMP"),
 	SND_SOC_DAPM_OUTPUT("LINEOUTMN"),
 	SND_SOC_DAPM_OUTPUT("LINEOUTR"),
 	SND_SOC_DAPM_OUTPUT("HSOUTR"),
 };

 static const struct snd_soc_dapm_route aud96p22_dapm_routes[] = {
 	{ "AINLMUX", "AINL1 differential", "AINL1N" },
 	{ "AINLMUX", "AINL1 single-ended", "AINL1P" },
 	{ "AINLMUX", "AINL3 single-ended", "AINL3" },
 	{ "AINLMUX", "AINL2 differential", "AINL2N" },
 	{ "AINLMUX", "AINL2 single-ended", "AINL2P" },

 	{ "AINRMUX", "AINR1 differential", "AINR1N" },
 	{ "AINRMUX", "AINR1 single-ended", "AINR1P" },
 	{ "AINRMUX", "AINR3 single-ended", "AINR3" },
 	{ "AINRMUX", "AINR2 differential", "AINR2N" },
 	{ "AINRMUX", "AINR2 single-ended", "AINR2P" },

 	{ "ADCL", NULL, "AINLMUX" },
 	{ "ADCR", NULL, "AINRMUX" },

 	{ "ADCL", NULL, "POWER" },
 	{ "ADCR", NULL, "POWER" },
 	{ "DACL", NULL, "POWER" },
 	{ "DACR", NULL, "POWER" },

 	{ "LD1L", "DACL LD1L Switch", "DACL" },
 	{ "LD1L", "AINL LD1L Switch", "AINLMUX" },
 	{ "LD1L", "AINR LD1L Switch", "AINRMUX" },

 	{ "LD1R", "DACR LD1R Switch", "DACR" },
 	{ "LD1R", "AINR LD1R Switch", "AINRMUX" },
 	{ "LD1R", "AINL LD1R Switch", "AINLMUX" },

 	{ "LD2", "DACL LD2 Switch", "DACL" },
 	{ "LD2", "AINL LD2 Switch", "AINLMUX" },
 	{ "LD2", "DACR LD2 Switch", "DACR" },

 	{ "HSOUTL", NULL, "LD1L" },
 	{ "HSOUTR", NULL, "LD1R" },
 	{ "HSOUTL", NULL, "HS1L" },
 	{ "HSOUTR", NULL, "HS1R" },

 	{ "LINEOUTL", NULL, "LD1L" },
 	{ "LINEOUTR", NULL, "LD1R" },

 	{ "LINEOUTMP", NULL, "LD2" },
 	{ "LINEOUTMN", NULL, "LD2" },
 };

 static const struct snd_soc_component_driver aud96p22_driver = {
 	.controls		= aud96p22_snd_controls,
 	.num_controls		= ARRAY_SIZE(aud96p22_snd_controls),
 	.dapm_widgets		= aud96p22_dapm_widgets,
 	.num_dapm_widgets	= ARRAY_SIZE(aud96p22_dapm_widgets),
 	.dapm_routes		= aud96p22_dapm_routes,
 	.num_dapm_routes	= ARRAY_SIZE(aud96p22_dapm_routes),
 	.idle_bias_on		= 1,
 	.use_pmdown_time	= 1,
 	.endianness		= 1,
 	.non_legacy_dai_naming	= 1,
 };

 static int aud96p22_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
 {
 	struct aud96p22_priv *priv = snd_soc_component_get_drvdata(dai->component);
 	struct regmap *regmap = priv->regmap;
 	unsigned int val;

 	/* Master/slave mode */
 	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
 	case SND_SOC_DAIFMT_CBS_CFS:
 		val = 0;
 		break;
 	case SND_SOC_DAIFMT_CBM_CFM:
 		val = I2S1_MS_MODE;
 		break;
 	default:
 		return -EINVAL;
 	}

 	regmap_update_bits(regmap, AUD96P22_I2S1_CONFIG_0, I2S1_MS_MODE, val);

 	/* Audio format */
 	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
 	case SND_SOC_DAIFMT_RIGHT_J:
 		val = I2S1_MODE_RIGHT_J;
 		break;
 	case SND_SOC_DAIFMT_I2S:
 		val = I2S1_MODE_I2S;
 		break;
 	case SND_SOC_DAIFMT_LEFT_J:
 		val = I2S1_MODE_LEFT_J;
 		break;
 	default:
 		return -EINVAL;
 	}

 	regmap_update_bits(regmap, AUD96P22_I2S1_CONFIG_0, I2S1_MODE_MASK, val);

 	return 0;
 }

 static const struct snd_soc_dai_ops aud96p22_dai_ops = {
 	.set_fmt = aud96p22_set_fmt,
 };

 #define AUD96P22_RATES	SNDRV_PCM_RATE_8000_192000
 #define AUD96P22_FORMATS (\
 		SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S18_3LE | \
 		SNDRV_PCM_FMTBIT_S20_3LE | SNDRV_PCM_FMTBIT_S24_LE)

 static struct snd_soc_dai_driver aud96p22_dai = {
 	.name = "aud96p22-dai",
 	.playback = {
 		.stream_name = "Playback",
 		.channels_min = 1,
 		.channels_max = 2,
 		.rates = AUD96P22_RATES,
 		.formats = AUD96P22_FORMATS,
 	},
 	.capture = {
 		.stream_name = "Capture",
 		.channels_min = 1,
 		.channels_max = 2,
 		.rates = AUD96P22_RATES,
 		.formats = AUD96P22_FORMATS,
 	},
 	.ops = &aud96p22_dai_ops,
 };

 static const struct regmap_config aud96p22_regmap = {
 	.reg_bits = 8,
 	.val_bits = 8,
 	.max_register = AUD96P22_REG_MAX,
 	.cache_type = REGCACHE_RBTREE,
 };

 static int aud96p22_i2c_probe(struct i2c_client *i2c,
 			      const struct i2c_device_id *id)
 {
 	struct device *dev = &i2c->dev;
 	struct aud96p22_priv *priv;
 	int ret;

 	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
 	if (priv == NULL)
 		return -ENOMEM;

 	priv->regmap = devm_regmap_init_i2c(i2c, &aud96p22_regmap);
 	if (IS_ERR(priv->regmap)) {
 		ret = PTR_ERR(priv->regmap);
 		dev_err(dev, "failed to init i2c regmap: %d\n", ret);
 		return ret;
 	}

 	i2c_set_clientdata(i2c, priv);

 	ret = devm_snd_soc_register_component(dev, &aud96p22_driver, &aud96p22_dai, 1);
 	if (ret) {
 		dev_err(dev, "failed to register component: %d\n", ret);
 		return ret;
 	}

 	return 0;
 }

 static int aud96p22_i2c_remove(struct i2c_client *i2c)
 {
 	return 0;
 }

 static const struct of_device_id aud96p22_dt_ids[] = {
 	{ .compatible = "zte,zx-aud96p22", },
 	{ }
 };
 MODULE_DEVICE_TABLE(of, aud96p22_dt_ids);

 static struct i2c_driver aud96p22_i2c_driver = {
 	.driver = {
 		.name = "zx_aud96p22",
 		.of_match_table = aud96p22_dt_ids,
 	},
 	.probe = aud96p22_i2c_probe,
 	.remove = aud96p22_i2c_remove,
 };
 module_i2c_driver(aud96p22_i2c_driver);

 MODULE_DESCRIPTION("ZTE ASoC AUD96P22 CODEC driver");
 MODULE_AUTHOR("Baoyou Xie <baoyou.xie@linaro.org>");
 MODULE_LICENSE("GPL v2");
	/*
	* Copyright (C) 2017 Sanechips Technology Co., Ltd.
	* Copyright 2017 Linaro Ltd.
	*
	* Author: Baoyou Xie <baoyou.xie@linaro.org>
	*
	* 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.
	*/

	#include <linux/gpio/consumer.h>
	#include <linux/i2c.h>
	#include <linux/module.h>
	#include <linux/regmap.h>
	#include <sound/pcm.h>
	#include <sound/pcm_params.h>
	#include <sound/soc.h>
	#include <sound/soc-dai.h>
	#include <sound/tlv.h>

	#define AUD96P22_RESET 0x00
	#define RST_DAC_DPZ BIT(0)
	#define RST_ADC_DPZ BIT(1)
	#define AUD96P22_I2S1_CONFIG_0 0x03
	#define I2S1_MS_MODE BIT(3)
	#define I2S1_MODE_MASK 0x7
	#define I2S1_MODE_RIGHT_J 0x0
	#define I2S1_MODE_I2S 0x1
	#define I2S1_MODE_LEFT_J 0x2
	#define AUD96P22_PD_0 0x15
	#define AUD96P22_PD_1 0x16
	#define AUD96P22_PD_3 0x18
	#define AUD96P22_PD_4 0x19
	#define AUD96P22_MUTE_0 0x1d
	#define AUD96P22_MUTE_2 0x1f
	#define AUD96P22_MUTE_4 0x21
	#define AUD96P22_RECVOL_0 0x24
	#define AUD96P22_RECVOL_1 0x25
	#define AUD96P22_PGA1VOL_0 0x26
	#define AUD96P22_PGA1VOL_1 0x27
	#define AUD96P22_LMVOL_0 0x34
	#define AUD96P22_LMVOL_1 0x35
	#define AUD96P22_HS1VOL_0 0x38
	#define AUD96P22_HS1VOL_1 0x39
	#define AUD96P22_PGA1SEL_0 0x47
	#define AUD96P22_PGA1SEL_1 0x48
	#define AUD96P22_LDR1SEL_0 0x59
	#define AUD96P22_LDR1SEL_1 0x60
	#define AUD96P22_LDR2SEL_0 0x5d
	#define AUD96P22_REG_MAX 0xfb

	struct aud96p22_priv {
	struct regmap *regmap;
	};

	static int aud96p22_adc_event(struct snd_soc_dapm_widget *w,
	struct snd_kcontrol *kcontrol, int event)
	{
	struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
	struct aud96p22_priv *priv = snd_soc_component_get_drvdata(component);
	struct regmap *regmap = priv->regmap;

	if (event != SND_SOC_DAPM_POST_PMU)
	return -EINVAL;

	/* Assert/de-assert the bit to reset ADC data path */
	regmap_update_bits(regmap, AUD96P22_RESET, RST_ADC_DPZ, 0);
	regmap_update_bits(regmap, AUD96P22_RESET, RST_ADC_DPZ, RST_ADC_DPZ);

	return 0;
	}

	static int aud96p22_dac_event(struct snd_soc_dapm_widget *w,
	struct snd_kcontrol *kcontrol, int event)
	{
	struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
	struct aud96p22_priv *priv = snd_soc_component_get_drvdata(component);
	struct regmap *regmap = priv->regmap;

	if (event != SND_SOC_DAPM_POST_PMU)
	return -EINVAL;

	/* Assert/de-assert the bit to reset DAC data path */
	regmap_update_bits(regmap, AUD96P22_RESET, RST_DAC_DPZ, 0);
	regmap_update_bits(regmap, AUD96P22_RESET, RST_DAC_DPZ, RST_DAC_DPZ);

	return 0;
	}

	static const DECLARE_TLV_DB_SCALE(lm_tlv, -11550, 50, 0);
	static const DECLARE_TLV_DB_SCALE(hs_tlv, -3900, 300, 0);
	static const DECLARE_TLV_DB_SCALE(rec_tlv, -9550, 50, 0);
	static const DECLARE_TLV_DB_SCALE(pga_tlv, -1800, 100, 0);

	static const struct snd_kcontrol_new aud96p22_snd_controls[] = {
	/* Volume control */
	SOC_DOUBLE_R_TLV("Master Playback Volume", AUD96P22_LMVOL_0,
	AUD96P22_LMVOL_1, 0, 0xff, 0, lm_tlv),
	SOC_DOUBLE_R_TLV("Headphone Volume", AUD96P22_HS1VOL_0,
	AUD96P22_HS1VOL_1, 0, 0xf, 0, hs_tlv),
	SOC_DOUBLE_R_TLV("Master Capture Volume", AUD96P22_RECVOL_0,
	AUD96P22_RECVOL_1, 0, 0xff, 0, rec_tlv),
	SOC_DOUBLE_R_TLV("Analogue Capture Volume", AUD96P22_PGA1VOL_0,
	AUD96P22_PGA1VOL_1, 0, 0x37, 0, pga_tlv),

	/* Mute control */
	SOC_DOUBLE("Master Playback Switch", AUD96P22_MUTE_2, 0, 1, 1, 1),
	SOC_DOUBLE("Headphone Switch", AUD96P22_MUTE_2, 4, 5, 1, 1),
	SOC_DOUBLE("Line Out Switch", AUD96P22_MUTE_4, 0, 1, 1, 1),
	SOC_DOUBLE("Speaker Switch", AUD96P22_MUTE_4, 2, 3, 1, 1),
	SOC_DOUBLE("Master Capture Switch", AUD96P22_MUTE_0, 0, 1, 1, 1),
	SOC_DOUBLE("Analogue Capture Switch", AUD96P22_MUTE_0, 2, 3, 1, 1),
	};

	/* Input mux kcontrols */
	static const unsigned int ain_mux_values[] = {
	0, 1, 3, 4, 5,
	};

	static const char * const ainl_mux_texts[] = {
	"AINL1 differential",
	"AINL1 single-ended",
	"AINL3 single-ended",
	"AINL2 differential",
	"AINL2 single-ended",
	};

	static const char * const ainr_mux_texts[] = {
	"AINR1 differential",
	"AINR1 single-ended",
	"AINR3 single-ended",
	"AINR2 differential",
	"AINR2 single-ended",
	};

	static SOC_VALUE_ENUM_SINGLE_DECL(ainl_mux_enum, AUD96P22_PGA1SEL_0,
	0, 0x7, ainl_mux_texts, ain_mux_values);
	static SOC_VALUE_ENUM_SINGLE_DECL(ainr_mux_enum, AUD96P22_PGA1SEL_1,
	0, 0x7, ainr_mux_texts, ain_mux_values);

	static const struct snd_kcontrol_new ainl_mux_kcontrol =
	SOC_DAPM_ENUM("AINL Mux", ainl_mux_enum);
	static const struct snd_kcontrol_new ainr_mux_kcontrol =
	SOC_DAPM_ENUM("AINR Mux", ainr_mux_enum);

	/* Output mixer kcontrols */
	static const struct snd_kcontrol_new ld1_left_kcontrols[] = {
	SOC_DAPM_SINGLE("DACL LD1L Switch", AUD96P22_LDR1SEL_0, 0, 1, 0),
	SOC_DAPM_SINGLE("AINL LD1L Switch", AUD96P22_LDR1SEL_0, 1, 1, 0),
	SOC_DAPM_SINGLE("AINR LD1L Switch", AUD96P22_LDR1SEL_0, 2, 1, 0),
	};

	static const struct snd_kcontrol_new ld1_right_kcontrols[] = {
	SOC_DAPM_SINGLE("DACR LD1R Switch", AUD96P22_LDR1SEL_1, 8, 1, 0),
	SOC_DAPM_SINGLE("AINR LD1R Switch", AUD96P22_LDR1SEL_1, 9, 1, 0),
	SOC_DAPM_SINGLE("AINL LD1R Switch", AUD96P22_LDR1SEL_1, 10, 1, 0),
	};

	static const struct snd_kcontrol_new ld2_kcontrols[] = {
	SOC_DAPM_SINGLE("DACL LD2 Switch", AUD96P22_LDR2SEL_0, 0, 1, 0),
	SOC_DAPM_SINGLE("AINL LD2 Switch", AUD96P22_LDR2SEL_0, 1, 1, 0),
	SOC_DAPM_SINGLE("DACR LD2 Switch", AUD96P22_LDR2SEL_0, 2, 1, 0),
	};

	static const struct snd_soc_dapm_widget aud96p22_dapm_widgets[] = {
	/* Overall power bit */
	SND_SOC_DAPM_SUPPLY("POWER", AUD96P22_PD_0, 0, 0, NULL, 0),

	/* Input pins */
	SND_SOC_DAPM_INPUT("AINL1P"),
	SND_SOC_DAPM_INPUT("AINL2P"),
	SND_SOC_DAPM_INPUT("AINL3"),
	SND_SOC_DAPM_INPUT("AINL1N"),
	SND_SOC_DAPM_INPUT("AINL2N"),
	SND_SOC_DAPM_INPUT("AINR2N"),
	SND_SOC_DAPM_INPUT("AINR1N"),
	SND_SOC_DAPM_INPUT("AINR3"),
	SND_SOC_DAPM_INPUT("AINR2P"),
	SND_SOC_DAPM_INPUT("AINR1P"),

	/* Input muxes */
	SND_SOC_DAPM_MUX("AINLMUX", AUD96P22_PD_1, 2, 0, &ainl_mux_kcontrol),
	SND_SOC_DAPM_MUX("AINRMUX", AUD96P22_PD_1, 3, 0, &ainr_mux_kcontrol),

	/* ADCs */
	SND_SOC_DAPM_ADC_E("ADCL", "Capture Left", AUD96P22_PD_1, 0, 0,
	aud96p22_adc_event, SND_SOC_DAPM_POST_PMU),
	SND_SOC_DAPM_ADC_E("ADCR", "Capture Right", AUD96P22_PD_1, 1, 0,
	aud96p22_adc_event, SND_SOC_DAPM_POST_PMU),

	/* DACs */
	SND_SOC_DAPM_DAC_E("DACL", "Playback Left", AUD96P22_PD_3, 0, 0,
	aud96p22_dac_event, SND_SOC_DAPM_POST_PMU),
	SND_SOC_DAPM_DAC_E("DACR", "Playback Right", AUD96P22_PD_3, 1, 0,
	aud96p22_dac_event, SND_SOC_DAPM_POST_PMU),

	/* Output mixers */
	SND_SOC_DAPM_MIXER("LD1L", AUD96P22_PD_3, 6, 0, ld1_left_kcontrols,
	ARRAY_SIZE(ld1_left_kcontrols)),
	SND_SOC_DAPM_MIXER("LD1R", AUD96P22_PD_3, 7, 0, ld1_right_kcontrols,
	ARRAY_SIZE(ld1_right_kcontrols)),
	SND_SOC_DAPM_MIXER("LD2", AUD96P22_PD_4, 2, 0, ld2_kcontrols,
	ARRAY_SIZE(ld2_kcontrols)),

	/* Headset power switch */
	SND_SOC_DAPM_SUPPLY("HS1L", AUD96P22_PD_3, 4, 0, NULL, 0),
	SND_SOC_DAPM_SUPPLY("HS1R", AUD96P22_PD_3, 5, 0, NULL, 0),

	/* Output pins */
	SND_SOC_DAPM_OUTPUT("HSOUTL"),
	SND_SOC_DAPM_OUTPUT("LINEOUTL"),
	SND_SOC_DAPM_OUTPUT("LINEOUTMP"),
	SND_SOC_DAPM_OUTPUT("LINEOUTMN"),
	SND_SOC_DAPM_OUTPUT("LINEOUTR"),
	SND_SOC_DAPM_OUTPUT("HSOUTR"),
	};

	static const struct snd_soc_dapm_route aud96p22_dapm_routes[] = {
	{ "AINLMUX", "AINL1 differential", "AINL1N" },
	{ "AINLMUX", "AINL1 single-ended", "AINL1P" },
	{ "AINLMUX", "AINL3 single-ended", "AINL3" },
	{ "AINLMUX", "AINL2 differential", "AINL2N" },
	{ "AINLMUX", "AINL2 single-ended", "AINL2P" },

	{ "AINRMUX", "AINR1 differential", "AINR1N" },
	{ "AINRMUX", "AINR1 single-ended", "AINR1P" },
	{ "AINRMUX", "AINR3 single-ended", "AINR3" },
	{ "AINRMUX", "AINR2 differential", "AINR2N" },
	{ "AINRMUX", "AINR2 single-ended", "AINR2P" },

	{ "ADCL", NULL, "AINLMUX" },
	{ "ADCR", NULL, "AINRMUX" },

	{ "ADCL", NULL, "POWER" },
	{ "ADCR", NULL, "POWER" },
	{ "DACL", NULL, "POWER" },
	{ "DACR", NULL, "POWER" },

	{ "LD1L", "DACL LD1L Switch", "DACL" },
	{ "LD1L", "AINL LD1L Switch", "AINLMUX" },
	{ "LD1L", "AINR LD1L Switch", "AINRMUX" },

	{ "LD1R", "DACR LD1R Switch", "DACR" },
	{ "LD1R", "AINR LD1R Switch", "AINRMUX" },
	{ "LD1R", "AINL LD1R Switch", "AINLMUX" },

	{ "LD2", "DACL LD2 Switch", "DACL" },
	{ "LD2", "AINL LD2 Switch", "AINLMUX" },
	{ "LD2", "DACR LD2 Switch", "DACR" },

	{ "HSOUTL", NULL, "LD1L" },
	{ "HSOUTR", NULL, "LD1R" },
	{ "HSOUTL", NULL, "HS1L" },
	{ "HSOUTR", NULL, "HS1R" },

	{ "LINEOUTL", NULL, "LD1L" },
	{ "LINEOUTR", NULL, "LD1R" },

	{ "LINEOUTMP", NULL, "LD2" },
	{ "LINEOUTMN", NULL, "LD2" },
	};

	static const struct snd_soc_component_driver aud96p22_driver = {
	.controls = aud96p22_snd_controls,
	.num_controls = ARRAY_SIZE(aud96p22_snd_controls),
	.dapm_widgets = aud96p22_dapm_widgets,
	.num_dapm_widgets = ARRAY_SIZE(aud96p22_dapm_widgets),
	.dapm_routes = aud96p22_dapm_routes,
	.num_dapm_routes = ARRAY_SIZE(aud96p22_dapm_routes),
	.idle_bias_on = 1,
	.use_pmdown_time = 1,
	.endianness = 1,
	.non_legacy_dai_naming = 1,
	};

	static int aud96p22_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
	{
	struct aud96p22_priv *priv = snd_soc_component_get_drvdata(dai->component);
	struct regmap *regmap = priv->regmap;
	unsigned int val;

	/* Master/slave mode */
	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
	case SND_SOC_DAIFMT_CBS_CFS:
	val = 0;
	break;
	case SND_SOC_DAIFMT_CBM_CFM:
	val = I2S1_MS_MODE;
	break;
	default:
	return -EINVAL;
	}

	regmap_update_bits(regmap, AUD96P22_I2S1_CONFIG_0, I2S1_MS_MODE, val);

	/* Audio format */
	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
	case SND_SOC_DAIFMT_RIGHT_J:
	val = I2S1_MODE_RIGHT_J;
	break;
	case SND_SOC_DAIFMT_I2S:
	val = I2S1_MODE_I2S;
	break;
	case SND_SOC_DAIFMT_LEFT_J:
	val = I2S1_MODE_LEFT_J;
	break;
	default:
	return -EINVAL;
	}

	regmap_update_bits(regmap, AUD96P22_I2S1_CONFIG_0, I2S1_MODE_MASK, val);

	return 0;
	}

	static const struct snd_soc_dai_ops aud96p22_dai_ops = {
	.set_fmt = aud96p22_set_fmt,
	};

	#define AUD96P22_RATES SNDRV_PCM_RATE_8000_192000
	#define AUD96P22_FORMATS (\
	SNDRV_PCM_FMTBIT_S16_LE \| SNDRV_PCM_FMTBIT_S18_3LE \| \
	SNDRV_PCM_FMTBIT_S20_3LE \| SNDRV_PCM_FMTBIT_S24_LE)

	static struct snd_soc_dai_driver aud96p22_dai = {
	.name = "aud96p22-dai",
	.playback = {
	.stream_name = "Playback",
	.channels_min = 1,
	.channels_max = 2,
	.rates = AUD96P22_RATES,
	.formats = AUD96P22_FORMATS,
	},
	.capture = {
	.stream_name = "Capture",
	.channels_min = 1,
	.channels_max = 2,
	.rates = AUD96P22_RATES,
	.formats = AUD96P22_FORMATS,
	},
	.ops = &aud96p22_dai_ops,
	};

	static const struct regmap_config aud96p22_regmap = {
	.reg_bits = 8,
	.val_bits = 8,
	.max_register = AUD96P22_REG_MAX,
	.cache_type = REGCACHE_RBTREE,
	};

	static int aud96p22_i2c_probe(struct i2c_client *i2c,
	const struct i2c_device_id *id)
	{
	struct device *dev = &i2c->dev;
	struct aud96p22_priv *priv;
	int ret;

	priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
	if (priv == NULL)
	return -ENOMEM;

	priv->regmap = devm_regmap_init_i2c(i2c, &aud96p22_regmap);
	if (IS_ERR(priv->regmap)) {
	ret = PTR_ERR(priv->regmap);
	dev_err(dev, "failed to init i2c regmap: %d\n", ret);
	return ret;
	}

	i2c_set_clientdata(i2c, priv);

	ret = devm_snd_soc_register_component(dev, &aud96p22_driver, &aud96p22_dai, 1);
	if (ret) {
	dev_err(dev, "failed to register component: %d\n", ret);
	return ret;
	}

	return 0;
	}

	static int aud96p22_i2c_remove(struct i2c_client *i2c)
	{
	return 0;
	}

	static const struct of_device_id aud96p22_dt_ids[] = {
	{ .compatible = "zte,zx-aud96p22", },
	{ }
	};
	MODULE_DEVICE_TABLE(of, aud96p22_dt_ids);

	static struct i2c_driver aud96p22_i2c_driver = {
	.driver = {
	.name = "zx_aud96p22",
	.of_match_table = aud96p22_dt_ids,
	},
	.probe = aud96p22_i2c_probe,
	.remove = aud96p22_i2c_remove,
	};
	module_i2c_driver(aud96p22_i2c_driver);

	MODULE_DESCRIPTION("ZTE ASoC AUD96P22 CODEC driver");
	MODULE_AUTHOR("Baoyou Xie <baoyou.xie@linaro.org>");
	MODULE_LICENSE("GPL v2");