path: root/sound/soc/codecs/adau1372.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Analog Devices ADAU1372 Audio Codec driver
 *
 * Copyright 2016 Analog Devices Inc.
 * Author: Lars-Peter Clausen <lars@metafoo.de>
 */

#include <linux/clk.h>
#include <linux/delay.h>
#include <linux/gpio/consumer.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/pm.h>
#include <linux/slab.h>

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

#include "adau1372.h"
#include "adau-utils.h"

struct adau1372 {
	struct regmap *regmap;
	void (*switch_mode)(struct device *dev);
	bool use_pll;
	bool enabled;
	bool clock_provider;

	struct snd_pcm_hw_constraint_list rate_constraints;
	unsigned int slot_width;

	struct clk *mclk;
	struct gpio_desc *pd_gpio;
	struct device *dev;
};

#define ADAU1372_REG_CLK_CTRL		0x00
#define ADAU1372_REG_PLL(x)		(0x01 + (x))
#define ADAU1372_REG_DAC_SOURCE		0x11
#define ADAU1372_REG_SOUT_SOURCE_0_1	0x13
#define ADAU1372_REG_SOUT_SOURCE_2_3	0x14
#define ADAU1372_REG_SOUT_SOURCE_4_5	0x15
#define ADAU1372_REG_SOUT_SOURCE_6_7	0x16
#define ADAU1372_REG_ADC_SDATA_CH	0x17
#define ADAU1372_REG_ASRCO_SOURCE_0_1	0x18
#define ADAU1372_REG_ASRCO_SOURCE_2_3	0x19
#define ADAU1372_REG_ASRC_MODE		0x1a
#define ADAU1372_REG_ADC_CTRL0		0x1b
#define ADAU1372_REG_ADC_CTRL1		0x1c
#define ADAU1372_REG_ADC_CTRL2		0x1d
#define ADAU1372_REG_ADC_CTRL3		0x1e
#define ADAU1372_REG_ADC_VOL(x)		(0x1f + (x))
#define ADAU1372_REG_PGA_CTRL(x)	(0x23 + (x))
#define ADAU1372_REG_PGA_BOOST		0x28
#define ADAU1372_REG_MICBIAS		0x2d
#define ADAU1372_REG_DAC_CTRL		0x2e
#define ADAU1372_REG_DAC_VOL(x)		(0x2f + (x))
#define ADAU1372_REG_OP_STAGE_MUTE	0x31
#define ADAU1372_REG_SAI0		0x32
#define ADAU1372_REG_SAI1		0x33
#define ADAU1372_REG_SOUT_CTRL		0x34
#define ADAU1372_REG_MODE_MP(x)		(0x38 + (x))
#define ADAU1372_REG_OP_STAGE_CTRL	0x43
#define ADAU1372_REG_DECIM_PWR		0x44
#define ADAU1372_REG_INTERP_PWR		0x45
#define ADAU1372_REG_BIAS_CTRL0		0x46
#define ADAU1372_REG_BIAS_CTRL1		0x47

#define ADAU1372_CLK_CTRL_PLL_EN	BIT(7)
#define ADAU1372_CLK_CTRL_XTAL_DIS	BIT(4)
#define ADAU1372_CLK_CTRL_CLKSRC	BIT(3)
#define ADAU1372_CLK_CTRL_CC_MDIV	BIT(1)
#define ADAU1372_CLK_CTRL_MCLK_EN	BIT(0)

#define ADAU1372_SAI0_DELAY1		(0x0 << 6)
#define ADAU1372_SAI0_DELAY0		(0x1 << 6)
#define ADAU1372_SAI0_DELAY_MASK	(0x3 << 6)
#define ADAU1372_SAI0_SAI_I2S		(0x0 << 4)
#define ADAU1372_SAI0_SAI_TDM2		(0x1 << 4)
#define ADAU1372_SAI0_SAI_TDM4		(0x2 << 4)
#define ADAU1372_SAI0_SAI_TDM8		(0x3 << 4)
#define ADAU1372_SAI0_SAI_MASK		(0x3 << 4)
#define ADAU1372_SAI0_FS_48		0x0
#define ADAU1372_SAI0_FS_8		0x1
#define ADAU1372_SAI0_FS_12		0x2
#define ADAU1372_SAI0_FS_16		0x3
#define ADAU1372_SAI0_FS_24		0x4
#define ADAU1372_SAI0_FS_32		0x5
#define ADAU1372_SAI0_FS_96		0x6
#define ADAU1372_SAI0_FS_192		0x7
#define ADAU1372_SAI0_FS_MASK		0xf

#define ADAU1372_SAI1_TDM_TS		BIT(7)
#define ADAU1372_SAI1_BCLK_TDMC		BIT(6)
#define ADAU1372_SAI1_LR_MODE		BIT(5)
#define ADAU1372_SAI1_LR_POL		BIT(4)
#define ADAU1372_SAI1_BCLKRATE		BIT(2)
#define ADAU1372_SAI1_BCLKEDGE		BIT(1)
#define ADAU1372_SAI1_MS		BIT(0)

static const unsigned int adau1372_rates[] = {
	[ADAU1372_SAI0_FS_8] = 8000,
	[ADAU1372_SAI0_FS_12] = 12000,
	[ADAU1372_SAI0_FS_16] = 16000,
	[ADAU1372_SAI0_FS_24] = 24000,
	[ADAU1372_SAI0_FS_32] = 32000,
	[ADAU1372_SAI0_FS_48] = 48000,
	[ADAU1372_SAI0_FS_96] = 96000,
	[ADAU1372_SAI0_FS_192] = 192000,
};

/* 8k, 12k, 24k, 48k */
#define ADAU1372_RATE_MASK_TDM8 0x17
/* + 16k, 96k */
#define ADAU1372_RATE_MASK_TDM4_MASTER (ADAU1372_RATE_MASK_TDM8 | 0x48 | 0x20)
/* +32k */
#define ADAU1372_RATE_MASK_TDM4 (ADAU1372_RATE_MASK_TDM4_MASTER | 0x20)
/* + 192k */
#define ADAU1372_RATE_MASK_TDM2 (ADAU1372_RATE_MASK_TDM4 | 0x80)

static const DECLARE_TLV_DB_MINMAX(adau1372_digital_tlv, -9563, 0);
static const DECLARE_TLV_DB_SCALE(adau1372_pga_tlv, -1200, 75, 0);
static const DECLARE_TLV_DB_SCALE(adau1372_pga_boost_tlv, 0, 1000, 0);

static const char * const adau1372_bias_text[] = {
	"Normal operation", "Extreme power saving", "Enhanced performance",
	"Power saving",
};

static const unsigned int adau1372_bias_adc_values[] = {
	0, 2, 3,
};

static const char * const adau1372_bias_adc_text[] = {
	"Normal operation", "Enhanced performance", "Power saving",
};

static const char * const adau1372_bias_dac_text[] = {
	"Normal operation", "Power saving", "Superior performance",
	"Enhanced performance",
};

static SOC_ENUM_SINGLE_DECL(adau1372_bias_hp_enum,
	ADAU1372_REG_BIAS_CTRL0, 6, adau1372_bias_text);
static SOC_ENUM_SINGLE_DECL(adau1372_bias_afe0_1_enum,
	ADAU1372_REG_BIAS_CTRL0, 4, adau1372_bias_text);
static SOC_VALUE_ENUM_SINGLE_DECL(adau1372_bias_adc2_3_enum,
	ADAU1372_REG_BIAS_CTRL0, 2, 0x3, adau1372_bias_adc_text,
	adau1372_bias_adc_values);
static SOC_VALUE_ENUM_SINGLE_DECL(adau1372_bias_adc0_1_enum,
	ADAU1372_REG_BIAS_CTRL0, 0, 0x3, adau1372_bias_adc_text,
	adau1372_bias_adc_values);
static SOC_ENUM_SINGLE_DECL(adau1372_bias_afe2_3_enum,
	ADAU1372_REG_BIAS_CTRL1, 4, adau1372_bias_text);
static SOC_ENUM_SINGLE_DECL(adau1372_bias_mic_enum,
	ADAU1372_REG_BIAS_CTRL1, 2, adau1372_bias_text);
static SOC_ENUM_SINGLE_DECL(adau1372_bias_dac_enum,
	ADAU1372_REG_BIAS_CTRL1, 0, adau1372_bias_dac_text);

static const char * const adau1372_hpf_text[] = {
	"Off",
	"1 Hz",
	"4 Hz",
	"8 Hz",
};

static SOC_ENUM_SINGLE_DECL(adau1372_hpf0_1_enum, ADAU1372_REG_ADC_CTRL2, 5,
			    adau1372_hpf_text);
static SOC_ENUM_SINGLE_DECL(adau1372_hpf2_3_enum, ADAU1372_REG_ADC_CTRL3, 5,
			    adau1372_hpf_text);
static const struct snd_kcontrol_new adau1372_controls[] = {
	SOC_SINGLE_TLV("ADC 0 Capture Volume", ADAU1372_REG_ADC_VOL(0),
		       0, 0xff, 1, adau1372_digital_tlv),
	SOC_SINGLE_TLV("ADC 1 Capture Volume", ADAU1372_REG_ADC_VOL(1),
		       0, 0xff, 1, adau1372_digital_tlv),
	SOC_SINGLE_TLV("ADC 2 Capture Volume", ADAU1372_REG_ADC_VOL(2),
		       0, 0xff, 1, adau1372_digital_tlv),
	SOC_SINGLE_TLV("ADC 3 Capture Volume", ADAU1372_REG_ADC_VOL(3),
		       0, 0xff, 1, adau1372_digital_tlv),
	SOC_SINGLE("ADC 0 Capture Switch", ADAU1372_REG_ADC_CTRL0, 3, 1, 1),
	SOC_SINGLE("ADC 1 Capture Switch", ADAU1372_REG_ADC_CTRL0, 4, 1, 1),
	SOC_SINGLE("ADC 2 Capture Switch", ADAU1372_REG_ADC_CTRL1, 3, 1, 1),
	SOC_SINGLE("ADC 3 Capture Switch", ADAU1372_REG_ADC_CTRL1, 4, 1, 1),

	SOC_ENUM("ADC 0+1 High-Pass-Filter", adau1372_hpf0_1_enum),
	SOC_ENUM("ADC 2+3 High-Pass-Filter", adau1372_hpf2_3_enum),

	SOC_SINGLE_TLV("PGA 0 Capture Volume", ADAU1372_REG_PGA_CTRL(0),
		       0, 0x3f, 0, adau1372_pga_tlv),
	SOC_SINGLE_TLV("PGA 1 Capture Volume", ADAU1372_REG_PGA_CTRL(1),
		       0, 0x3f, 0, adau1372_pga_tlv),
	SOC_SINGLE_TLV("PGA 2 Capture Volume", ADAU1372_REG_PGA_CTRL(2),
		       0, 0x3f, 0, adau1372_pga_tlv),
	SOC_SINGLE_TLV("PGA 3 Capture Volume", ADAU1372_REG_PGA_CTRL(3),
		       0, 0x3f, 0, adau1372_pga_tlv),
	SOC_SINGLE_TLV("PGA 0 Boost Capture Volume", ADAU1372_REG_PGA_BOOST,
		       0, 1, 0, adau1372_pga_boost_tlv),
	SOC_SINGLE_TLV("PGA 1 Boost Capture Volume", ADAU1372_REG_PGA_BOOST,
		       1, 1, 0, adau1372_pga_boost_tlv),
	SOC_SINGLE_TLV("PGA 2 Boost Capture Volume", ADAU1372_REG_PGA_BOOST,
		       2, 1, 0, adau1372_pga_boost_tlv),
	SOC_SINGLE_TLV("PGA 3 Boost Capture Volume", ADAU1372_REG_PGA_BOOST,
		       3, 1, 0, adau1372_pga_boost_tlv),
	SOC_SINGLE("PGA 0 Capture Switch", ADAU1372_REG_PGA_CTRL(0), 7, 1, 0),
	SOC_SINGLE("PGA 1 Capture Switch", ADAU1372_REG_PGA_CTRL(1), 7, 1, 0),
	SOC_SINGLE("PGA 2 Capture Switch", ADAU1372_REG_PGA_CTRL(2), 7, 1, 0),
	SOC_SINGLE("PGA 3 Capture Switch", ADAU1372_REG_PGA_CTRL(3), 7, 1, 0),

	SOC_SINGLE_TLV("DAC 0 Playback Volume", ADAU1372_REG_DAC_VOL(0),
		       0, 0xff, 1, adau1372_digital_tlv),
	SOC_SINGLE_TLV("DAC 1 Playback Volume", ADAU1372_REG_DAC_VOL(1),
		       0, 0xff, 1, adau1372_digital_tlv),
	SOC_SINGLE("DAC 0 Playback Switch", ADAU1372_REG_DAC_CTRL, 3, 1, 1),
	SOC_SINGLE("DAC 1 Playback Switch", ADAU1372_REG_DAC_CTRL, 4, 1, 1),

	SOC_ENUM("Headphone Bias", adau1372_bias_hp_enum),
	SOC_ENUM("Microphone Bias", adau1372_bias_mic_enum),
	SOC_ENUM("AFE 0+1 Bias", adau1372_bias_afe0_1_enum),
	SOC_ENUM("AFE 2+3 Bias", adau1372_bias_afe2_3_enum),
	SOC_ENUM("ADC 0+1 Bias", adau1372_bias_adc0_1_enum),
	SOC_ENUM("ADC 2+3 Bias", adau1372_bias_adc2_3_enum),
	SOC_ENUM("DAC 0+1 Bias", adau1372_bias_dac_enum),
};

static const char * const adau1372_decimator_mux_text[] = {
	"ADC",
	"DMIC",
};

static SOC_ENUM_SINGLE_DECL(adau1372_decimator0_1_mux_enum, ADAU1372_REG_ADC_CTRL2,
			    2, adau1372_decimator_mux_text);

static const struct snd_kcontrol_new adau1372_decimator0_1_mux_control =
	SOC_DAPM_ENUM("Decimator 0+1 Capture Mux", adau1372_decimator0_1_mux_enum);

static SOC_ENUM_SINGLE_DECL(adau1372_decimator2_3_mux_enum, ADAU1372_REG_ADC_CTRL3,
			    2, adau1372_decimator_mux_text);

static const struct snd_kcontrol_new adau1372_decimator2_3_mux_control =
	SOC_DAPM_ENUM("Decimator 2+3 Capture Mux", adau1372_decimator2_3_mux_enum);

static const unsigned int adau1372_asrco_mux_values[] = {
	4, 5, 6, 7,
};

static const char * const adau1372_asrco_mux_text[] = {
	"Decimator0",
	"Decimator1",
	"Decimator2",
	"Decimator3",
};

static SOC_VALUE_ENUM_SINGLE_DECL(adau1372_asrco0_mux_enum, ADAU1372_REG_ASRCO_SOURCE_0_1,
				  0, 0xf, adau1372_asrco_mux_text, adau1372_asrco_mux_values);
static SOC_VALUE_ENUM_SINGLE_DECL(adau1372_asrco1_mux_enum, ADAU1372_REG_ASRCO_SOURCE_0_1,
				  4, 0xf, adau1372_asrco_mux_text, adau1372_asrco_mux_values);
static SOC_VALUE_ENUM_SINGLE_DECL(adau1372_asrco2_mux_enum, ADAU1372_REG_ASRCO_SOURCE_2_3,
				  0, 0xf, adau1372_asrco_mux_text, adau1372_asrco_mux_values);
static SOC_VALUE_ENUM_SINGLE_DECL(adau1372_asrco3_mux_enum, ADAU1372_REG_ASRCO_SOURCE_2_3,
				  4, 0xf, adau1372_asrco_mux_text, adau1372_asrco_mux_values);

static const struct snd_kcontrol_new adau1372_asrco0_mux_control =
	SOC_DAPM_ENUM("Output ASRC0 Capture Mux", adau1372_asrco0_mux_enum);
static const struct snd_kcontrol_new adau1372_asrco1_mux_control =
	SOC_DAPM_ENUM("Output ASRC1 Capture Mux", adau1372_asrco1_mux_enum);
static const struct snd_kcontrol_new adau1372_asrco2_mux_control =
	SOC_DAPM_ENUM("Output ASRC2 Capture Mux", adau1372_asrco2_mux_enum);
static const struct snd_kcontrol_new adau1372_asrco3_mux_control =
	SOC_DAPM_ENUM("Output ASRC3 Capture Mux", adau1372_asrco3_mux_enum);

static const unsigned int adau1372_sout_mux_values[] = {
	4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15
};

static const char * const adau1372_sout_mux_text[] = {
	"Output ASRC0",
	"Output ASRC1",
	"Output ASRC2",
	"Output ASRC3",
	"Serial Input 0",
	"Serial Input 1",
	"Serial Input 2",
	"Serial Input 3",
	"Serial Input 4",
	"Serial Input 5",
	"Serial Input 6",
	"Serial Input 7",
};

static SOC_VALUE_ENUM_SINGLE_DECL(adau1372_sout0_mux_enum, ADAU1372_REG_SOUT_SOURCE_0_1,
				  0, 0xf, adau1372_sout_mux_text, adau1372_sout_mux_values);
static SOC_VALUE_ENUM_SINGLE_DECL(adau1372_sout1_mux_enum, ADAU1372_REG_SOUT_SOURCE_0_1,
				  4, 0xf, adau1372_sout_mux_text, adau1372_sout_mux_values);
static SOC_VALUE_ENUM_SINGLE_DECL(adau1372_sout2_mux_enum, ADAU1372_REG_SOUT_SOURCE_2_3,
				  0, 0xf, adau1372_sout_mux_text, adau1372_sout_mux_values);
static SOC_VALUE_ENUM_SINGLE_DECL(adau1372_sout3_mux_enum, ADAU1372_REG_SOUT_SOURCE_2_3,
				  4, 0xf, adau1372_sout_mux_text, adau1372_sout_mux_values);
static SOC_VALUE_ENUM_SINGLE_DECL(adau1372_sout4_mux_enum, ADAU1372_REG_SOUT_SOURCE_4_5,
				  0, 0xf, adau1372_sout_mux_text, adau1372_sout_mux_values);
static SOC_VALUE_ENUM_SINGLE_DECL(adau1372_sout5_mux_enum, ADAU1372_REG_SOUT_SOURCE_4_5,
				  4, 0xf, adau1372_sout_mux_text, adau1372_sout_mux_values);
static SOC_VALUE_ENUM_SINGLE_DECL(adau1372_sout6_mux_enum, ADAU1372_REG_SOUT_SOURCE_6_7,
				  0, 0xf, adau1372_sout_mux_text, adau1372_sout_mux_values);
static SOC_VALUE_ENUM_SINGLE_DECL(adau1372_sout7_mux_enum, ADAU1372_REG_SOUT_SOURCE_6_7,
				  4, 0xf, adau1372_sout_mux_text, adau1372_sout_mux_values);

static const struct snd_kcontrol_new adau1372_sout0_mux_control =
	SOC_DAPM_ENUM("Serial Output 0 Capture Mux", adau1372_sout0_mux_enum);
static const struct snd_kcontrol_new adau1372_sout1_mux_control =
	SOC_DAPM_ENUM("Serial Output 1 Capture Mux", adau1372_sout1_mux_enum);
static const struct snd_kcontrol_new adau1372_sout2_mux_control =
	SOC_DAPM_ENUM("Serial Output 2 Capture Mux", adau1372_sout2_mux_enum);
static const struct snd_kcontrol_new adau1372_sout3_mux_control =
	SOC_DAPM_ENUM("Serial Output 3 Capture Mux", adau1372_sout3_mux_enum);
static const struct snd_kcontrol_new adau1372_sout4_mux_control =
	SOC_DAPM_ENUM("Serial Output 4 Capture Mux", adau1372_sout4_mux_enum);
static const struct snd_kcontrol_new adau1372_sout5_mux_control =
	SOC_DAPM_ENUM("Serial Output 5 Capture Mux", adau1372_sout5_mux_enum);
static const struct snd_kcontrol_new adau1372_sout6_mux_control =
	SOC_DAPM_ENUM("Serial Output 6 Capture Mux", adau1372_sout6_mux_enum);
static const struct snd_kcontrol_new adau1372_sout7_mux_control =
	SOC_DAPM_ENUM("Serial Output 7 Capture Mux", adau1372_sout7_mux_enum);

static const char * const adau1372_asrci_mux_text[] = {
	"Serial Input 0+1",
	"Serial Input 2+3",
	"Serial Input 4+5",
	"Serial Input 6+7",
};

static SOC_ENUM_SINGLE_DECL(adau1372_asrci_mux_enum,
	ADAU1372_REG_ASRC_MODE, 2, adau1372_asrci_mux_text);

static const struct snd_kcontrol_new adau1372_asrci_mux_control =
	SOC_DAPM_ENUM("Input ASRC Playback Mux", adau1372_asrci_mux_enum);

static const unsigned int adau1372_dac_mux_values[] = {
	12, 13
};

static const char * const adau1372_dac_mux_text[] = {
	"Input ASRC0",
	"Input ASRC1",
};

static SOC_VALUE_ENUM_SINGLE_DECL(adau1372_dac0_mux_enum, ADAU1372_REG_DAC_SOURCE,
				  0, 0xf, adau1372_dac_mux_text, adau1372_dac_mux_values);
static SOC_VALUE_ENUM_SINGLE_DECL(adau1372_dac1_mux_enum, ADAU1372_REG_DAC_SOURCE,
				  4, 0xf, adau1372_dac_mux_text, adau1372_dac_mux_values);

static const struct snd_kcontrol_new adau1372_dac0_mux_control =
	SOC_DAPM_ENUM("DAC 0 Playback Mux", adau1372_dac0_mux_enum);
static const struct snd_kcontrol_new adau1372_dac1_mux_control =
	SOC_DAPM_ENUM("DAC 1 Playback Mux", adau1372_dac1_mux_enum);

static const struct snd_soc_dapm_widget adau1372_dapm_widgets[] = {
	SND_SOC_DAPM_INPUT("AIN0"),
	SND_SOC_DAPM_INPUT("AIN1"),
	SND_SOC_DAPM_INPUT("AIN2"),
	SND_SOC_DAPM_INPUT("AIN3"),
	SND_SOC_DAPM_INPUT("DMIC0_1"),
	SND_SOC_DAPM_INPUT("DMIC2_3"),

	SND_SOC_DAPM_SUPPLY("MICBIAS0", ADAU1372_REG_MICBIAS, 4, 0, NULL, 0),
	SND_SOC_DAPM_SUPPLY("MICBIAS1", ADAU1372_REG_MICBIAS, 5, 0, NULL, 0),

	SND_SOC_DAPM_PGA("PGA0", ADAU1372_REG_PGA_CTRL(0), 6, 1, NULL, 0),
	SND_SOC_DAPM_PGA("PGA1", ADAU1372_REG_PGA_CTRL(1), 6, 1, NULL, 0),
	SND_SOC_DAPM_PGA("PGA2", ADAU1372_REG_PGA_CTRL(2), 6, 1, NULL, 0),
	SND_SOC_DAPM_PGA("PGA3", ADAU1372_REG_PGA_CTRL(3), 6, 1, NULL, 0),
	SND_SOC_DAPM_ADC("ADC0", NULL, ADAU1372_REG_ADC_CTRL2, 0, 0),
	SND_SOC_DAPM_ADC("ADC1", NULL, ADAU1372_REG_ADC_CTRL2, 1, 0),
	SND_SOC_DAPM_ADC("ADC2", NULL, ADAU1372_REG_ADC_CTRL3, 0, 0),
	SND_SOC_DAPM_ADC("ADC3", NULL, ADAU1372_REG_ADC_CTRL3, 1, 0),

	SND_SOC_DAPM_SUPPLY("ADC0 Filter", ADAU1372_REG_DECIM_PWR, 0, 0, NULL, 0),
	SND_SOC_DAPM_SUPPLY("ADC1 Filter", ADAU1372_REG_DECIM_PWR, 1, 0, NULL, 0),
	SND_SOC_DAPM_SUPPLY("ADC2 Filter", ADAU1372_REG_DECIM_PWR, 2, 0, NULL, 0),
	SND_SOC_DAPM_SUPPLY("ADC3 Filter", ADAU1372_REG_DECIM_PWR, 3, 0, NULL, 0),
	SND_SOC_DAPM_SUPPLY("Output ASRC0 Decimator", ADAU1372_REG_DECIM_PWR, 4, 0, NULL, 0),
	SND_SOC_DAPM_SUPPLY("Output ASRC1 Decimator", ADAU1372_REG_DECIM_PWR, 5, 0, NULL, 0),
	SND_SOC_DAPM_SUPPLY("Output ASRC2 Decimator", ADAU1372_REG_DECIM_PWR, 6, 0, NULL, 0),
	SND_SOC_DAPM_SUPPLY("Output ASRC3 Decimator", ADAU1372_REG_DECIM_PWR, 7, 0, NULL, 0),

	SND_SOC_DAPM_MUX("Decimator0 Mux", SND_SOC_NOPM, 0, 0, &adau1372_decimator0_1_mux_control),
	SND_SOC_DAPM_MUX("Decimator1 Mux", SND_SOC_NOPM, 0, 0, &adau1372_decimator0_1_mux_control),
	SND_SOC_DAPM_MUX("Decimator2 Mux", SND_SOC_NOPM, 0, 0, &adau1372_decimator2_3_mux_control),
	SND_SOC_DAPM_MUX("Decimator3 Mux", SND_SOC_NOPM, 0, 0, &adau1372_decimator2_3_mux_control),

	SND_SOC_DAPM_MUX("Output ASRC0 Mux", SND_SOC_NOPM, 0, 0, &adau1372_asrco0_mux_control),
	SND_SOC_DAPM_MUX("Output ASRC1 Mux", SND_SOC_NOPM, 0, 0, &adau1372_asrco1_mux_control),
	SND_SOC_DAPM_MUX("Output ASRC2 Mux", SND_SOC_NOPM, 0, 0, &adau1372_asrco2_mux_control),
	SND_SOC_DAPM_MUX("Output ASRC3 Mux", SND_SOC_NOPM, 0, 0, &adau1372_asrco3_mux_control),
	SND_SOC_DAPM_MUX("Serial Output 0 Capture Mux", SND_SOC_NOPM, 0, 0,
			 &adau1372_sout0_mux_control),
	SND_SOC_DAPM_MUX("Serial Output 1 Capture Mux", SND_SOC_NOPM, 0, 0,
			 &adau1372_sout1_mux_control),
	SND_SOC_DAPM_MUX("Serial Output 2 Capture Mux", SND_SOC_NOPM, 0, 0,
			 &adau1372_sout2_mux_control),
	SND_SOC_DAPM_MUX("Serial Output 3 Capture Mux", SND_SOC_NOPM, 0, 0,
			 &adau1372_sout3_mux_control),
	SND_SOC_DAPM_MUX("Serial Output 4 Capture Mux", SND_SOC_NOPM, 0, 0,
			 &adau1372_sout4_mux_control),
	SND_SOC_DAPM_MUX("Serial Output 5 Capture Mux", SND_SOC_NOPM, 0, 0,
			 &adau1372_sout5_mux_control),
	SND_SOC_DAPM_MUX("Serial Output 6 Capture Mux", SND_SOC_NOPM, 0, 0,
			 &adau1372_sout6_mux_control),
	SND_SOC_DAPM_MUX("Serial Output 7 Capture Mux", SND_SOC_NOPM, 0, 0,
			 &adau1372_sout7_mux_control),

	SND_SOC_DAPM_AIF_IN("Serial Input 0", NULL, 0, SND_SOC_NOPM, 0, 0),
	SND_SOC_DAPM_AIF_IN("Serial Input 1", NULL, 1, SND_SOC_NOPM, 0, 0),
	SND_SOC_DAPM_AIF_IN("Serial Input 2", NULL, 2, SND_SOC_NOPM, 0, 0),
	SND_SOC_DAPM_AIF_IN("Serial Input 3", NULL, 3, SND_SOC_NOPM, 0, 0),
	SND_SOC_DAPM_AIF_IN("Serial Input 4", NULL, 4, SND_SOC_NOPM, 0, 0),
	SND_SOC_DAPM_AIF_IN("Serial Input 5", NULL, 5, SND_SOC_NOPM, 0, 0),
	SND_SOC_DAPM_AIF_IN("Serial Input 6", NULL, 6, SND_SOC_NOPM, 0, 0),
	SND_SOC_DAPM_AIF_IN("Serial Input 7", NULL, 7, SND_SOC_NOPM, 0, 0),

	SND_SOC_DAPM_AIF_OUT("Serial Output 0", NULL, 0, SND_SOC_NOPM, 0, 0),
	SND_SOC_DAPM_AIF_OUT("Serial Output 1", NULL, 1, SND_SOC_NOPM, 0, 0),
	SND_SOC_DAPM_AIF_OUT("Serial Output 2", NULL, 2, SND_SOC_NOPM, 0, 0),
	SND_SOC_DAPM_AIF_OUT("Serial Output 3", NULL, 3, SND_SOC_NOPM, 0, 0),
	SND_SOC_DAPM_AIF_OUT("Serial Output 4", NULL, 4, SND_SOC_NOPM, 0, 0),
	SND_SOC_DAPM_AIF_OUT("Serial Output 5", NULL, 5, SND_SOC_NOPM, 0, 0),
	SND_SOC_DAPM_AIF_OUT("Serial Output 6", NULL, 6, SND_SOC_NOPM, 0, 0),
	SND_SOC_DAPM_AIF_OUT("Serial Output 7", NULL, 7, SND_SOC_NOPM, 0, 0),

	SND_SOC_DAPM_SUPPLY("Output ASRC Supply", ADAU1372_REG_ASRC_MODE, 1, 0, NULL, 0),
	SND_SOC_DAPM_SUPPLY("Input ASRC Supply", ADAU1372_REG_ASRC_MODE, 0, 0, NULL, 0),

	SND_SOC_DAPM_SUPPLY("DAC1 Modulator", ADAU1372_REG_INTERP_PWR, 3, 0, NULL, 0),
	SND_SOC_DAPM_SUPPLY("DAC0 Modulator", ADAU1372_REG_INTERP_PWR, 2, 0, NULL, 0),
	SND_SOC_DAPM_SUPPLY("Input ASRC1 Interpolator", ADAU1372_REG_INTERP_PWR, 1, 0, NULL, 0),
	SND_SOC_DAPM_SUPPLY("Input ASRC0 Interpolator", ADAU1372_REG_INTERP_PWR, 0, 0, NULL, 0),

	SND_SOC_DAPM_MUX("Input ASRC0 Mux", SND_SOC_NOPM, 0, 0, &adau1372_asrci_mux_control),
	SND_SOC_DAPM_MUX("Input ASRC1 Mux", SND_SOC_NOPM, 0, 0, &adau1372_asrci_mux_control),

	SND_SOC_DAPM_MUX("DAC 0 Mux", SND_SOC_NOPM, 0, 0, &adau1372_dac0_mux_control),
	SND_SOC_DAPM_MUX("DAC 1 Mux", SND_SOC_NOPM, 0, 0, &adau1372_dac1_mux_control),

	SND_SOC_DAPM_DAC("DAC0", NULL, ADAU1372_REG_DAC_CTRL, 0, 0),
	SND_SOC_DAPM_DAC("DAC1", NULL, ADAU1372_REG_DAC_CTRL, 1, 0),

	SND_SOC_DAPM_OUT_DRV("OP_STAGE_LP", ADAU1372_REG_OP_STAGE_CTRL, 0, 1, NULL, 0),
	SND_SOC_DAPM_OUT_DRV("OP_STAGE_LN", ADAU1372_REG_OP_STAGE_CTRL, 1, 1, NULL, 0),
	SND_SOC_DAPM_OUT_DRV("OP_STAGE_RP", ADAU1372_REG_OP_STAGE_CTRL, 2, 1, NULL, 0),
	SND_SOC_DAPM_OUT_DRV("OP_STAGE_RN", ADAU1372_REG_OP_STAGE_CTRL, 3, 1, NULL, 0),

	SND_SOC_DAPM_OUTPUT("HPOUTL"),
	SND_SOC_DAPM_OUTPUT("HPOUTR"),
};

#define ADAU1372_SOUT_ROUTES(x) \
	{ "Serial Output " #x " Capture Mux", "Output ASRC0", "Output ASRC0 Mux" }, \
	{ "Serial Output " #x " Capture Mux", "Output ASRC1", "Output ASRC1 Mux" }, \
	{ "Serial Output " #x " Capture Mux", "Output ASRC2", "Output ASRC2 Mux" }, \
	{ "Serial Output " #x " Capture Mux", "Output ASRC3", "Output ASRC3 Mux" }, \
	{ "Serial Output " #x " Capture Mux", "Serial Input 0", "Serial Input 0" }, \
	{ "Serial Output " #x " Capture Mux", "Serial Input 1", "Serial Input 1" }, \
	{ "Serial Output " #x " Capture Mux", "Serial Input 2", "Serial Input 2" }, \
	{ "Serial Output " #x " Capture Mux", "Serial Input 3", "Serial Input 3" }, \
	{ "Serial Output " #x " Capture Mux", "Serial Input 4", "Serial Input 4" }, \
	{ "Serial Output " #x " Capture Mux", "Serial Input 5", "Serial Input 5" }, \
	{ "Serial Output " #x " Capture Mux", "Serial Input 6", "Serial Input 6" }, \
	{ "Serial Output " #x " Capture Mux", "Serial Input 7", "Serial Input 7" }, \
	{ "Serial Output " #x, NULL, "Serial Output " #x " Capture Mux" }, \
	{ "Capture", NULL, "Serial Output " #x }

#define ADAU1372_ASRCO_ROUTES(x) \
	{ "Output ASRC" #x " Mux", "Decimator0", "Decimator0 Mux" }, \
	{ "Output ASRC" #x " Mux", "Decimator1", "Decimator1 Mux" }, \
	{ "Output ASRC" #x " Mux", "Decimator2", "Decimator2 Mux" }, \
	{ "Output ASRC" #x " Mux", "Decimator3", "Decimator3 Mux" }

static const struct snd_soc_dapm_route adau1372_dapm_routes[] = {
	{ "PGA0", NULL, "AIN0" },
	{ "PGA1", NULL, "AIN1" },
	{ "PGA2", NULL, "AIN2" },
	{ "PGA3", NULL, "AIN3" },

	{ "ADC0", NULL, "PGA0" },
	{ "ADC1", NULL, "PGA1" },
	{ "ADC2", NULL, "PGA2" },
	{ "ADC3", NULL, "PGA3" },

	{ "Decimator0 Mux", "ADC", "ADC0" },
	{ "Decimator1 Mux", "ADC", "ADC1" },
	{ "Decimator2 Mux", "ADC", "ADC2" },
	{ "Decimator3 Mux", "ADC", "ADC3" },

	{ "Decimator0 Mux", "DMIC", "DMIC0_1" },
	{ "Decimator1 Mux", "DMIC", "DMIC0_1" },
	{ "Decimator2 Mux", "DMIC", "DMIC2_3" },
	{ "Decimator3 Mux", "DMIC", "DMIC2_3" },

	{ "Decimator0 Mux", NULL, "ADC0 Filter" },
	{ "Decimator1 Mux", NULL, "ADC1 Filter" },
	{ "Decimator2 Mux", NULL, "ADC2 Filter" },
	{ "Decimator3 Mux", NULL, "ADC3 Filter" },

	{ "Output ASRC0 Mux", NULL, "Output ASRC Supply" },
	{ "Output ASRC1 Mux", NULL, "Output ASRC Supply" },
	{ "Output ASRC2 Mux", NULL, "Output ASRC Supply" },
	{ "Output ASRC3 Mux", NULL, "Output ASRC Supply" },
	{ "Output ASRC0 Mux", NULL, "Output ASRC0 Decimator" },
	{ "Output ASRC1 Mux", NULL, "Output ASRC1 Decimator" },
	{ "Output ASRC2 Mux", NULL, "Output ASRC2 Decimator" },
	{ "Output ASRC3 Mux", NULL, "Output ASRC3 Decimator" },

	ADAU1372_ASRCO_ROUTES(0),
	ADAU1372_ASRCO_ROUTES(1),
	ADAU1372_ASRCO_ROUTES(2),
	ADAU1372_ASRCO_ROUTES(3),

	ADAU1372_SOUT_ROUTES(0),
	ADAU1372_SOUT_ROUTES(1),
	ADAU1372_SOUT_ROUTES(2),
	ADAU1372_SOUT_ROUTES(3),
	ADAU1372_SOUT_ROUTES(4),
	ADAU1372_SOUT_ROUTES(5),
	ADAU1372_SOUT_ROUTES(6),
	ADAU1372_SOUT_ROUTES(7),

	{ "Serial Input 0", NULL, "Playback" },
	{ "Serial Input 1", NULL, "Playback" },
	{ "Serial Input 2", NULL, "Playback" },
	{ "Serial Input 3", NULL, "Playback" },
	{ "Serial Input 4", NULL, "Playback" },
	{ "Serial Input 5", NULL, "Playback" },
	{ "Serial Input 6", NULL, "Playback" },
	{ "Serial Input 7", NULL, "Playback" },

	{ "Input ASRC0 Mux", "Serial Input 0+1", "Serial Input 0" },
	{ "Input ASRC1 Mux", "Serial Input 0+1", "Serial Input 1" },
	{ "Input ASRC0 Mux", "Serial Input 2+3", "Serial Input 2" },
	{ "Input ASRC1 Mux", "Serial Input 2+3", "Serial Input 3" },
	{ "Input ASRC0 Mux", "Serial Input 4+5", "Serial Input 4" },
	{ "Input ASRC1 Mux", "Serial Input 4+5", "Serial Input 5" },
	{ "Input ASRC0 Mux", "Serial Input 6+7", "Serial Input 6" },
	{ "Input ASRC1 Mux", "Serial Input 6+7", "Serial Input 7" },
	{ "Input ASRC0 Mux", NULL, "Input ASRC Supply" },
	{ "Input ASRC1 Mux", NULL, "Input ASRC Supply" },
	{ "Input ASRC0 Mux", NULL, "Input ASRC0 Interpolator" },
	{ "Input ASRC1 Mux", NULL, "Input ASRC1 Interpolator" },

	{ "DAC 0 Mux", "Input ASRC0", "Input ASRC0 Mux" },
	{ "DAC 0 Mux", "Input ASRC1", "Input ASRC1 Mux" },
	{ "DAC 1 Mux", "Input ASRC0", "Input ASRC0 Mux" },
	{ "DAC 1 Mux", "Input ASRC1", "Input ASRC1 Mux" },

	{ "DAC0", NULL, "DAC 0 Mux" },
	{ "DAC1", NULL, "DAC 1 Mux" },
	{ "DAC0", NULL, "DAC0 Modulator" },
	{ "DAC1", NULL, "DAC1 Modulator" },

	{ "OP_STAGE_LP", NULL, "DAC0" },
	{ "OP_STAGE_LN", NULL, "DAC0" },
	{ "OP_STAGE_RP", NULL, "DAC1" },
	{ "OP_STAGE_RN", NULL, "DAC1" },

	{ "HPOUTL", NULL, "OP_STAGE_LP" },
	{ "HPOUTL", NULL, "OP_STAGE_LN" },
	{ "HPOUTR", NULL, "OP_STAGE_RP" },
	{ "HPOUTR", NULL, "OP_STAGE_RN" },
};

static int adau1372_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt)
{
	struct adau1372 *adau1372 = snd_soc_dai_get_drvdata(dai);
	unsigned int sai0 = 0, sai1 = 0;
	bool invert_lrclk = false;

	switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) {
	case SND_SOC_DAIFMT_CBP_CFP:
		adau1372->clock_provider = true;
		sai1 |= ADAU1372_SAI1_MS;
		break;
	case SND_SOC_DAIFMT_CBC_CFC:
		adau1372->clock_provider = false;
		break;
	default:
		return -EINVAL;
	}

	switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
	case SND_SOC_DAIFMT_NB_NF:
		invert_lrclk = false;
		break;
	case SND_SOC_DAIFMT_NB_IF:
		invert_lrclk = true;
		break;
	case SND_SOC_DAIFMT_IB_NF:
		invert_lrclk = false;
		sai1 |= ADAU1372_SAI1_BCLKEDGE;
		break;
	case SND_SOC_DAIFMT_IB_IF:
		invert_lrclk = true;
		sai1 |= ADAU1372_SAI1_BCLKEDGE;
		break;
	}

	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
	case SND_SOC_DAIFMT_I2S:
		sai0 |= ADAU1372_SAI0_DELAY1;
		break;
	case SND_SOC_DAIFMT_LEFT_J:
		sai0 |= ADAU1372_SAI0_DELAY0;
		invert_lrclk = !invert_lrclk;
		break;
	case SND_SOC_DAIFMT_DSP_A:
		sai0 |= ADAU1372_SAI0_DELAY1;
		sai1 |= ADAU1372_SAI1_LR_MODE;
		break;
	case SND_SOC_DAIFMT_DSP_B:
		sai0 |= ADAU1372_SAI0_DELAY0;
		sai1 |= ADAU1372_SAI1_LR_MODE;
		break;
	}

	if (invert_lrclk)
		sai1 |= ADAU1372_SAI1_LR_POL;

	regmap_update_bits(adau1372->regmap, ADAU1372_REG_SAI0, ADAU1372_SAI0_DELAY_MASK, sai0);
	regmap_update_bits(adau1372->regmap, ADAU1372_REG_SAI1,
			   ADAU1372_SAI1_MS | ADAU1372_SAI1_BCLKEDGE |
			   ADAU1372_SAI1_LR_MODE | ADAU1372_SAI1_LR_POL, sai1);

	return 0;
}

static int adau1372_hw_params(struct snd_pcm_substream *substream,
			      struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
{
	struct adau1372 *adau1372 = snd_soc_dai_get_drvdata(dai);
	unsigned int rate = params_rate(params);
	unsigned int slot_width;
	unsigned int sai0, sai1;
	unsigned int i;

	for (i = 0; i < ARRAY_SIZE(adau1372_rates); i++) {
		if (rate == adau1372_rates[i])
			break;
	}

	if (i == ARRAY_SIZE(adau1372_rates))
		return -EINVAL;

	sai0 = i;

	slot_width = adau1372->slot_width;
	if (slot_width == 0)
		slot_width = params_width(params);

	switch (slot_width) {
	case 16:
		sai1 = ADAU1372_SAI1_BCLKRATE;
		break;
	case 24:
	case 32:
		sai1 = 0;
		break;
	default:
		return -EINVAL;
	}

	regmap_update_bits(adau1372->regmap, ADAU1372_REG_SAI0, ADAU1372_SAI0_FS_MASK, sai0);
	regmap_update_bits(adau1372->regmap, ADAU1372_REG_SAI1, ADAU1372_SAI1_BCLKRATE, sai1);

	return 0;
}

static int adau1372_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask,
				 unsigned int rx_mask, int slots, int width)
{
	struct adau1372 *adau1372 = snd_soc_dai_get_drvdata(dai);
	unsigned int sai0, sai1;

	/* I2S mode */
	if (slots == 0) {
		/* The other settings dont matter in I2S mode */
		regmap_update_bits(adau1372->regmap, ADAU1372_REG_SAI0,
				   ADAU1372_SAI0_SAI_MASK, ADAU1372_SAI0_SAI_I2S);
		adau1372->rate_constraints.mask = ADAU1372_RATE_MASK_TDM2;
		adau1372->slot_width = 0;
		return 0;
	}

	/* We have 8 channels anything outside that is not supported */
	if ((tx_mask & ~0xff) != 0 || (rx_mask & ~0xff) != 0)
		return -EINVAL;

	switch (width) {
	case 16:
		sai1 = ADAU1372_SAI1_BCLK_TDMC;
		break;
	case 24:
	case 32:
		sai1 = 0;
		break;
	default:
		return -EINVAL;
	}

	switch (slots) {
	case 2:
		sai0 = ADAU1372_SAI0_SAI_TDM2;
		adau1372->rate_constraints.mask = ADAU1372_RATE_MASK_TDM2;
		break;
	case 4:
		sai0 = ADAU1372_SAI0_SAI_TDM4;
		if (adau1372->clock_provider)
			adau1372->rate_constraints.mask = ADAU1372_RATE_MASK_TDM4_MASTER;
		else
			adau1372->rate_constraints.mask = ADAU1372_RATE_MASK_TDM4;
		break;
	case 8:
		sai0 = ADAU1372_SAI0_SAI_TDM8;
		adau1372->rate_constraints.mask = ADAU1372_RATE_MASK_TDM8;
		break;
	default:
		return -EINVAL;
	}

	adau1372->slot_width = width;

	regmap_update_bits(adau1372->regmap, ADAU1372_REG_SAI0, ADAU1372_SAI0_SAI_MASK, sai0);
	regmap_update_bits(adau1372->regmap, ADAU1372_REG_SAI1, ADAU1372_SAI1_BCLK_TDMC, sai1);

	/* Mask is inverted in hardware */
	regmap_write(adau1372->regmap, ADAU1372_REG_SOUT_CTRL, ~tx_mask);

	return 0;
}

static int adau1372_set_tristate(struct snd_soc_dai *dai, int tristate)
{
	struct adau1372 *adau1372 = snd_soc_dai_get_drvdata(dai);
	unsigned int sai1;

	if (tristate)
		sai1 = ADAU1372_SAI1_TDM_TS;
	else
		sai1 = 0;

	return regmap_update_bits(adau1372->regmap, ADAU1372_REG_SAI1, ADAU1372_SAI1_TDM_TS, sai1);
}

static int adau1372_startup(struct snd_pcm_substream *substream, struct snd_soc_dai *dai)
{
	struct adau1372 *adau1372 = snd_soc_dai_get_drvdata(dai);

	snd_pcm_hw_constraint_list(substream->runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
				   &adau1372->rate_constraints);

	return 0;
}

static void adau1372_enable_pll(struct adau1372 *adau1372)
{
	unsigned int val, timeout = 0;
	int ret;

	regmap_update_bits(adau1372->regmap, ADAU1372_REG_CLK_CTRL,
			   ADAU1372_CLK_CTRL_PLL_EN, ADAU1372_CLK_CTRL_PLL_EN);
	do {
		/* Takes about 1ms to lock */
		usleep_range(1000, 2000);
		ret = regmap_read(adau1372->regmap, ADAU1372_REG_PLL(5), &val);
		if (ret)
			break;
		timeout++;
	} while (!(val & 1) && timeout < 3);

	if (ret < 0 || !(val & 1))
		dev_err(adau1372->dev, "Failed to lock PLL\n");
}

static void adau1372_set_power(struct adau1372 *adau1372, bool enable)
{
	if (adau1372->enabled == enable)
		return;

	if (enable) {
		unsigned int clk_ctrl = ADAU1372_CLK_CTRL_MCLK_EN;

		clk_prepare_enable(adau1372->mclk);
		if (adau1372->pd_gpio)
			gpiod_set_value(adau1372->pd_gpio, 0);

		if (adau1372->switch_mode)
			adau1372->switch_mode(adau1372->dev);

		regcache_cache_only(adau1372->regmap, false);

		/*
		 * Clocks needs to be enabled before any other register can be
		 * accessed.
		 */
		if (adau1372->use_pll) {
			adau1372_enable_pll(adau1372);
			clk_ctrl |= ADAU1372_CLK_CTRL_CLKSRC;
		}

		regmap_update_bits(adau1372->regmap, ADAU1372_REG_CLK_CTRL,
				   ADAU1372_CLK_CTRL_MCLK_EN | ADAU1372_CLK_CTRL_CLKSRC, clk_ctrl);
		regcache_sync(adau1372->regmap);
	} else {
		if (adau1372->pd_gpio) {
			/*
			 * This will turn everything off and reset the register
			 * map. No need to do any register writes to manually
			 * turn things off.
			 */
			gpiod_set_value(adau1372->pd_gpio, 1);
			regcache_mark_dirty(adau1372->regmap);
		} else {
			regmap_update_bits(adau1372->regmap, ADAU1372_REG_CLK_CTRL,
					   ADAU1372_CLK_CTRL_MCLK_EN | ADAU1372_CLK_CTRL_PLL_EN, 0);
		}
		clk_disable_unprepare(adau1372->mclk);
		regcache_cache_only(adau1372->regmap, true);
	}

	adau1372->enabled = enable;
}

static int adau1372_set_bias_level(struct snd_soc_component *component,
				   enum snd_soc_bias_level level)
{
	struct adau1372 *adau1372 = snd_soc_component_get_drvdata(component);

	switch (level) {
	case SND_SOC_BIAS_ON:
		break;
	case SND_SOC_BIAS_PREPARE:
		break;
	case SND_SOC_BIAS_STANDBY:
		adau1372_set_power(adau1372, true);
		break;
	case SND_SOC_BIAS_OFF:
		adau1372_set_power(adau1372, false);
		break;
	}

	return 0;
}

static const struct snd_soc_component_driver adau1372_driver = {
	.set_bias_level = adau1372_set_bias_level,
	.controls = adau1372_controls,
	.num_controls = ARRAY_SIZE(adau1372_controls),
	.dapm_widgets = adau1372_dapm_widgets,
	.num_dapm_widgets = ARRAY_SIZE(adau1372_dapm_widgets),
	.dapm_routes = adau1372_dapm_routes,
	.num_dapm_routes = ARRAY_SIZE(adau1372_dapm_routes),
	.endianness = 1,
};

static const struct snd_soc_dai_ops adau1372_dai_ops = {
	.set_fmt = adau1372_set_dai_fmt,
	.set_tdm_slot = adau1372_set_tdm_slot,
	.set_tristate = adau1372_set_tristate,
	.hw_params = adau1372_hw_params,
	.startup = adau1372_startup,
};

#define ADAU1372_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | \
			  SNDRV_PCM_FMTBIT_S24_LE | \
			  SNDRV_PCM_FMTBIT_S32_LE)

static struct snd_soc_dai_driver adau1372_dai_driver = {
	.name = "adau1372",
	.playback = {
		.stream_name = "Playback",
		.channels_min = 2,
		.channels_max = 8,
		.rates = SNDRV_PCM_RATE_KNOT,
		.formats = ADAU1372_FORMATS,
		.sig_bits = 24,
	},
	.capture = {
		.stream_name = "Capture",
		.channels_min = 2,
		.channels_max = 8,
		.rates = SNDRV_PCM_RATE_KNOT,
		.formats = ADAU1372_FORMATS,
		.sig_bits = 24,
	},
	.ops = &adau1372_dai_ops,
	.symmetric_rate = 1,
};

static int adau1372_setup_pll(struct adau1372 *adau1372, unsigned int rate)
{
	u8 regs[5];
	unsigned int i;
	int ret;

	ret = adau_calc_pll_cfg(rate, 49152000, regs);
	if (ret < 0)
		return ret;

	for (i = 0; i < ARRAY_SIZE(regs); i++)
		regmap_write(adau1372->regmap, ADAU1372_REG_PLL(i), regs[i]);

	return 0;
}

int adau1372_probe(struct device *dev, struct regmap *regmap,
		   void (*switch_mode)(struct device *dev))
{
	struct adau1372 *adau1372;
	unsigned int clk_ctrl;
	unsigned long rate;
	int ret;

	if (IS_ERR(regmap))
		return PTR_ERR(regmap);

	adau1372 = devm_kzalloc(dev, sizeof(*adau1372), GFP_KERNEL);
	if (!adau1372)
		return -ENOMEM;

	adau1372->mclk = devm_clk_get(dev, "mclk");
	if (IS_ERR(adau1372->mclk))
		return PTR_ERR(adau1372->mclk);

	adau1372->pd_gpio = devm_gpiod_get_optional(dev, "powerdown", GPIOD_OUT_HIGH);
	if (IS_ERR(adau1372->pd_gpio))
		return PTR_ERR(adau1372->pd_gpio);

	adau1372->regmap = regmap;
	adau1372->switch_mode = switch_mode;
	adau1372->dev = dev;
	adau1372->rate_constraints.list = adau1372_rates;
	adau1372->rate_constraints.count = ARRAY_SIZE(adau1372_rates);
	adau1372->rate_constraints.mask = ADAU1372_RATE_MASK_TDM2;

	dev_set_drvdata(dev, adau1372);

	/*
	 * The datasheet says that the internal MCLK always needs to run at
	 * 12.288MHz. Automatically choose a valid configuration from the
	 * external clock.
	 */
	rate = clk_get_rate(adau1372->mclk);

	switch (rate) {
	case 12288000:
		clk_ctrl = ADAU1372_CLK_CTRL_CC_MDIV;
		break;
	case 24576000:
		clk_ctrl = 0;
		break;
	default:
		clk_ctrl = 0;
		ret = adau1372_setup_pll(adau1372, rate);
		if (ret < 0)
			return ret;
		adau1372->use_pll = true;
		break;
	}

	/*
	 * Most of the registers are inaccessible unless the internal clock is
	 * enabled.
	 */
	regcache_cache_only(regmap, true);

	regmap_update_bits(regmap, ADAU1372_REG_CLK_CTRL, ADAU1372_CLK_CTRL_CC_MDIV, clk_ctrl);

	/*
	 * No pinctrl support yet, put the multi-purpose pins in the most
	 * sensible mode for general purpose CODEC operation.
	 */
	regmap_write(regmap, ADAU1372_REG_MODE_MP(1), 0x00); /* SDATA OUT */
	regmap_write(regmap, ADAU1372_REG_MODE_MP(6), 0x12); /* CLOCKOUT */

	regmap_write(regmap, ADAU1372_REG_OP_STAGE_MUTE, 0x0);

	regmap_write(regmap, 0x7, 0x01); /* CLOCK OUT */

	return  devm_snd_soc_register_component(dev, &adau1372_driver, &adau1372_dai_driver, 1);
}
EXPORT_SYMBOL(adau1372_probe);

static const struct reg_default adau1372_reg_defaults[] = {
	{ ADAU1372_REG_CLK_CTRL,		0x00 },
	{ ADAU1372_REG_PLL(0),			0x00 },
	{ ADAU1372_REG_PLL(1),			0x00 },
	{ ADAU1372_REG_PLL(2),			0x00 },
	{ ADAU1372_REG_PLL(3),			0x00 },
	{ ADAU1372_REG_PLL(4),			0x00 },
	{ ADAU1372_REG_PLL(5),			0x00 },
	{ ADAU1372_REG_DAC_SOURCE,		0x10 },
	{ ADAU1372_REG_SOUT_SOURCE_0_1,		0x54 },
	{ ADAU1372_REG_SOUT_SOURCE_2_3,		0x76 },
	{ ADAU1372_REG_SOUT_SOURCE_4_5,		0x54 },
	{ ADAU1372_REG_SOUT_SOURCE_6_7,		0x76 },
	{ ADAU1372_REG_ADC_SDATA_CH,		0x04 },
	{ ADAU1372_REG_ASRCO_SOURCE_0_1,	0x10 },
	{ ADAU1372_REG_ASRCO_SOURCE_2_3,	0x32 },
	{ ADAU1372_REG_ASRC_MODE,		0x00 },
	{ ADAU1372_REG_ADC_CTRL0,		0x19 },
	{ ADAU1372_REG_ADC_CTRL1,		0x19 },
	{ ADAU1372_REG_ADC_CTRL2,		0x00 },
	{ ADAU1372_REG_ADC_CTRL3,		0x00 },
	{ ADAU1372_REG_ADC_VOL(0),		0x00 },
	{ ADAU1372_REG_ADC_VOL(1),		0x00 },
	{ ADAU1372_REG_ADC_VOL(2),		0x00 },
	{ ADAU1372_REG_ADC_VOL(3),		0x00 },
	{ ADAU1372_REG_PGA_CTRL(0),		0x40 },
	{ ADAU1372_REG_PGA_CTRL(1),		0x40 },
	{ ADAU1372_REG_PGA_CTRL(2),		0x40 },
	{ ADAU1372_REG_PGA_CTRL(3),		0x40 },
	{ ADAU1372_REG_PGA_BOOST,		0x00 },
	{ ADAU1372_REG_MICBIAS,			0x00 },
	{ ADAU1372_REG_DAC_CTRL,		0x18 },
	{ ADAU1372_REG_DAC_VOL(0),		0x00 },
	{ ADAU1372_REG_DAC_VOL(1),		0x00 },
	{ ADAU1372_REG_OP_STAGE_MUTE,		0x0f },
	{ ADAU1372_REG_SAI0,			0x00 },
	{ ADAU1372_REG_SAI1,			0x00 },
	{ ADAU1372_REG_SOUT_CTRL,		0x00 },
	{ ADAU1372_REG_MODE_MP(0),		0x00 },
	{ ADAU1372_REG_MODE_MP(1),		0x10 },
	{ ADAU1372_REG_MODE_MP(4),		0x00 },
	{ ADAU1372_REG_MODE_MP(5),		0x00 },
	{ ADAU1372_REG_MODE_MP(6),		0x11 },
	{ ADAU1372_REG_OP_STAGE_CTRL,		0x0f },
	{ ADAU1372_REG_DECIM_PWR,		0x00 },
	{ ADAU1372_REG_INTERP_PWR,		0x00 },
	{ ADAU1372_REG_BIAS_CTRL0,		0x00 },
	{ ADAU1372_REG_BIAS_CTRL1,		0x00 },
};

static bool adau1372_volatile_register(struct device *dev, unsigned int reg)
{
	if (reg == ADAU1372_REG_PLL(5))
		return true;

	return false;
}

const struct regmap_config adau1372_regmap_config = {
	.val_bits = 8,
	.reg_bits = 16,
	.max_register = 0x4d,

	.reg_defaults = adau1372_reg_defaults,
	.num_reg_defaults = ARRAY_SIZE(adau1372_reg_defaults),
	.volatile_reg = adau1372_volatile_register,
	.cache_type = REGCACHE_MAPLE,
};
EXPORT_SYMBOL_GPL(adau1372_regmap_config);

MODULE_DESCRIPTION("ASoC ADAU1372 CODEC driver");
MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
MODULE_LICENSE("GPL v2");