/*
 * cs43130.c  --  CS43130 ALSA Soc Audio driver
 *
 * Copyright 2017 Cirrus Logic, Inc.
 *
 * Authors: Li Xu <li.xu@cirrus.com>
 *
 * 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/module.h>
#include <linux/moduleparam.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <linux/gpio.h>
#include <linux/gpio/consumer.h>
#include <linux/platform_device.h>
#include <linux/pm.h>
#include <linux/i2c.h>
#include <linux/of_device.h>
#include <linux/regmap.h>
#include <linux/slab.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/soc-dapm.h>
#include <sound/initval.h>
#include <sound/tlv.h>
#include <linux/of_gpio.h>
#include <linux/regulator/consumer.h>
#include <linux/pm_runtime.h>
#include <linux/of_irq.h>
#include <linux/completion.h>
#include <linux/mutex.h>
#include <linux/workqueue.h>
#include <sound/jack.h>

#include "cs43130.h"

static const struct reg_default cs43130_reg_defaults[] = {
	{CS43130_SYS_CLK_CTL_1, 0x06},
	{CS43130_SP_SRATE, 0x01},
	{CS43130_SP_BITSIZE, 0x05},
	{CS43130_PAD_INT_CFG, 0x03},
	{CS43130_PWDN_CTL, 0xFE},
	{CS43130_CRYSTAL_SET, 0x04},
	{CS43130_PLL_SET_1, 0x00},
	{CS43130_PLL_SET_2, 0x00},
	{CS43130_PLL_SET_3, 0x00},
	{CS43130_PLL_SET_4, 0x00},
	{CS43130_PLL_SET_5, 0x40},
	{CS43130_PLL_SET_6, 0x10},
	{CS43130_PLL_SET_7, 0x80},
	{CS43130_PLL_SET_8, 0x03},
	{CS43130_PLL_SET_9, 0x02},
	{CS43130_PLL_SET_10, 0x02},
	{CS43130_CLKOUT_CTL, 0x00},
	{CS43130_ASP_NUM_1, 0x01},
	{CS43130_ASP_NUM_2, 0x00},
	{CS43130_ASP_DEN_1, 0x08},
	{CS43130_ASP_DEN_2, 0x00},
	{CS43130_ASP_LRCK_HI_TIME_1, 0x1F},
	{CS43130_ASP_LRCK_HI_TIME_2, 0x00},
	{CS43130_ASP_LRCK_PERIOD_1, 0x3F},
	{CS43130_ASP_LRCK_PERIOD_2, 0x00},
	{CS43130_ASP_CLOCK_CONF, 0x0C},
	{CS43130_ASP_FRAME_CONF, 0x0A},
	{CS43130_XSP_NUM_1, 0x01},
	{CS43130_XSP_NUM_2, 0x00},
	{CS43130_XSP_DEN_1, 0x02},
	{CS43130_XSP_DEN_2, 0x00},
	{CS43130_XSP_LRCK_HI_TIME_1, 0x1F},
	{CS43130_XSP_LRCK_HI_TIME_2, 0x00},
	{CS43130_XSP_LRCK_PERIOD_1, 0x3F},
	{CS43130_XSP_LRCK_PERIOD_2, 0x00},
	{CS43130_XSP_CLOCK_CONF, 0x0C},
	{CS43130_XSP_FRAME_CONF, 0x0A},
	{CS43130_ASP_CH_1_LOC, 0x00},
	{CS43130_ASP_CH_2_LOC, 0x00},
	{CS43130_ASP_CH_1_SZ_EN, 0x06},
	{CS43130_ASP_CH_2_SZ_EN, 0x0E},
	{CS43130_XSP_CH_1_LOC, 0x00},
	{CS43130_XSP_CH_2_LOC, 0x00},
	{CS43130_XSP_CH_1_SZ_EN, 0x06},
	{CS43130_XSP_CH_2_SZ_EN, 0x0E},
	{CS43130_DSD_VOL_B, 0x78},
	{CS43130_DSD_VOL_A, 0x78},
	{CS43130_DSD_PATH_CTL_1, 0xA8},
	{CS43130_DSD_INT_CFG, 0x00},
	{CS43130_DSD_PATH_CTL_2, 0x02},
	{CS43130_DSD_PCM_MIX_CTL, 0x00},
	{CS43130_DSD_PATH_CTL_3, 0x40},
	{CS43130_HP_OUT_CTL_1, 0x30},
	{CS43130_PCM_FILT_OPT, 0x02},
	{CS43130_PCM_VOL_B, 0x78},
	{CS43130_PCM_VOL_A, 0x78},
	{CS43130_PCM_PATH_CTL_1, 0xA8},
	{CS43130_PCM_PATH_CTL_2, 0x00},
	{CS43130_CLASS_H_CTL, 0x1E},
	{CS43130_HP_DETECT, 0x04},
	{CS43130_HP_LOAD_1, 0x00},
	{CS43130_HP_MEAS_LOAD_1, 0x00},
	{CS43130_HP_MEAS_LOAD_2, 0x00},
	{CS43130_INT_MASK_1, 0xFF},
	{CS43130_INT_MASK_2, 0xFF},
	{CS43130_INT_MASK_3, 0xFF},
	{CS43130_INT_MASK_4, 0xFF},
	{CS43130_INT_MASK_5, 0xFF},
};

static bool cs43130_volatile_register(struct device *dev, unsigned int reg)
{
	switch (reg) {
	case CS43130_INT_STATUS_1 ... CS43130_INT_STATUS_5:
	case CS43130_HP_DC_STAT_1 ... CS43130_HP_DC_STAT_2:
	case CS43130_HP_AC_STAT_1 ... CS43130_HP_AC_STAT_2:
		return true;
	default:
		return false;
	}
}

static bool cs43130_readable_register(struct device *dev, unsigned int reg)
{
	switch (reg) {
	case CS43130_DEVID_AB ... CS43130_SYS_CLK_CTL_1:
	case CS43130_SP_SRATE ... CS43130_PAD_INT_CFG:
	case CS43130_PWDN_CTL:
	case CS43130_CRYSTAL_SET:
	case CS43130_PLL_SET_1 ... CS43130_PLL_SET_5:
	case CS43130_PLL_SET_6:
	case CS43130_PLL_SET_7:
	case CS43130_PLL_SET_8:
	case CS43130_PLL_SET_9:
	case CS43130_PLL_SET_10:
	case CS43130_CLKOUT_CTL:
	case CS43130_ASP_NUM_1 ... CS43130_ASP_FRAME_CONF:
	case CS43130_XSP_NUM_1 ... CS43130_XSP_FRAME_CONF:
	case CS43130_ASP_CH_1_LOC:
	case CS43130_ASP_CH_2_LOC:
	case CS43130_ASP_CH_1_SZ_EN:
	case CS43130_ASP_CH_2_SZ_EN:
	case CS43130_XSP_CH_1_LOC:
	case CS43130_XSP_CH_2_LOC:
	case CS43130_XSP_CH_1_SZ_EN:
	case CS43130_XSP_CH_2_SZ_EN:
	case CS43130_DSD_VOL_B ... CS43130_DSD_PATH_CTL_3:
	case CS43130_HP_OUT_CTL_1:
	case CS43130_PCM_FILT_OPT ... CS43130_PCM_PATH_CTL_2:
	case CS43130_CLASS_H_CTL:
	case CS43130_HP_DETECT:
	case CS43130_HP_STATUS:
	case CS43130_HP_LOAD_1:
	case CS43130_HP_MEAS_LOAD_1:
	case CS43130_HP_MEAS_LOAD_2:
	case CS43130_HP_DC_STAT_1:
	case CS43130_HP_DC_STAT_2:
	case CS43130_HP_AC_STAT_1:
	case CS43130_HP_AC_STAT_2:
	case CS43130_HP_LOAD_STAT:
	case CS43130_INT_STATUS_1 ... CS43130_INT_STATUS_5:
	case CS43130_INT_MASK_1 ... CS43130_INT_MASK_5:
		return true;
	default:
		return false;
	}
}

static bool cs43130_precious_register(struct device *dev, unsigned int reg)
{
	switch (reg) {
	case CS43130_INT_STATUS_1 ... CS43130_INT_STATUS_5:
		return true;
	default:
		return false;
	}
}

struct cs43130_pll_params {
	unsigned int pll_in;
	u8 sclk_prediv;
	u8 pll_div_int;
	u32 pll_div_frac;
	u8 pll_mode;
	u8 pll_divout;
	unsigned int pll_out;
	u8 pll_cal_ratio;
};

static const struct cs43130_pll_params pll_ratio_table[] = {
	{9600000, 0x02, 0x49, 0x800000, 0x00, 0x08, 22579200, 151},
	{9600000, 0x02, 0x50, 0x000000, 0x00, 0x08, 24576000, 164},

	{11289600, 0x02, 0X40, 0, 0x01, 0x08, 22579200, 128},
	{11289600, 0x02, 0x44, 0x06F700, 0x0, 0x08, 24576000, 139},

	{12000000, 0x02, 0x49, 0x800000, 0x00, 0x0A, 22579200, 120},
	{12000000, 0x02, 0x40, 0x000000, 0x00, 0x08, 24576000, 131},

	{12288000, 0x02, 0x49, 0x800000, 0x01, 0x0A, 22579200, 118},
	{12288000, 0x02, 0x40, 0x000000, 0x01, 0x08, 24576000, 128},

	{13000000, 0x02, 0x45, 0x797680, 0x01, 0x0A, 22579200, 111},
	{13000000, 0x02, 0x3C, 0x7EA940, 0x01, 0x08, 24576000, 121},

	{19200000, 0x03, 0x49, 0x800000, 0x00, 0x08, 22579200, 151},
	{19200000, 0x03, 0x50, 0x000000, 0x00, 0x08, 24576000, 164},

	{22579200, 0, 0, 0, 0, 0, 22579200, 0},
	{22579200, 0x03, 0x44, 0x06F700, 0x00, 0x08, 24576000, 139},

	{24000000, 0x03, 0x49, 0x800000, 0x00, 0x0A, 22579200, 120},
	{24000000, 0x03, 0x40, 0x000000, 0x00, 0x08, 24576000, 131},

	{24576000, 0x03, 0x49, 0x800000, 0x01, 0x0A, 22579200, 118},
	{24576000, 0, 0, 0, 0, 0, 24576000, 0},

	{26000000, 0x03, 0x45, 0x797680, 0x01, 0x0A, 22579200, 111},
	{26000000, 0x03, 0x3C, 0x7EA940, 0x01, 0x08, 24576000, 121},
};

static const struct cs43130_pll_params *cs43130_get_pll_table(
		unsigned int freq_in, unsigned int freq_out)
{
	int i;

	for (i = 0; i < ARRAY_SIZE(pll_ratio_table); i++) {
		if (pll_ratio_table[i].pll_in == freq_in &&
		    pll_ratio_table[i].pll_out == freq_out)
			return &pll_ratio_table[i];
	}

	return NULL;
}

static int cs43130_pll_config(struct snd_soc_codec *codec)
{
	struct cs43130_private *cs43130 = snd_soc_codec_get_drvdata(codec);
	const struct cs43130_pll_params *pll_entry;

	dev_dbg(codec->dev, "cs43130->mclk = %u, cs43130->mclk_int = %u\n",
		cs43130->mclk, cs43130->mclk_int);

	pll_entry = cs43130_get_pll_table(cs43130->mclk, cs43130->mclk_int);
	if (!pll_entry)
		return -EINVAL;

	if (pll_entry->pll_cal_ratio == 0) {
		regmap_update_bits(cs43130->regmap, CS43130_PLL_SET_1,
				   CS43130_PLL_START_MASK, 0);

		cs43130->pll_bypass = true;
		return 0;
	}

	cs43130->pll_bypass = false;

	regmap_update_bits(cs43130->regmap, CS43130_PLL_SET_2,
			   CS43130_PLL_DIV_DATA_MASK,
			   pll_entry->pll_div_frac >>
			   CS43130_PLL_DIV_FRAC_0_DATA_SHIFT);
	regmap_update_bits(cs43130->regmap, CS43130_PLL_SET_3,
			   CS43130_PLL_DIV_DATA_MASK,
			   pll_entry->pll_div_frac >>
			   CS43130_PLL_DIV_FRAC_1_DATA_SHIFT);
	regmap_update_bits(cs43130->regmap, CS43130_PLL_SET_4,
			   CS43130_PLL_DIV_DATA_MASK,
			   pll_entry->pll_div_frac >>
			   CS43130_PLL_DIV_FRAC_2_DATA_SHIFT);
	regmap_write(cs43130->regmap, CS43130_PLL_SET_5,
		     pll_entry->pll_div_int);
	regmap_write(cs43130->regmap, CS43130_PLL_SET_6, pll_entry->pll_divout);
	regmap_write(cs43130->regmap, CS43130_PLL_SET_7,
		     pll_entry->pll_cal_ratio);
	regmap_update_bits(cs43130->regmap, CS43130_PLL_SET_8,
			   CS43130_PLL_MODE_MASK,
			   pll_entry->pll_mode << CS43130_PLL_MODE_SHIFT);
	regmap_write(cs43130->regmap, CS43130_PLL_SET_9,
		     pll_entry->sclk_prediv);
	regmap_update_bits(cs43130->regmap, CS43130_PLL_SET_1,
			   CS43130_PLL_START_MASK, 1);

	return 0;
}

static int cs43130_set_pll(struct snd_soc_codec *codec, int pll_id, int source,
			   unsigned int freq_in, unsigned int freq_out)
{
	int ret = 0;
	struct cs43130_private *cs43130 = snd_soc_codec_get_drvdata(codec);

	switch (freq_in) {
	case 9600000:
	case 11289600:
	case 12000000:
	case 12288000:
	case 13000000:
	case 19200000:
	case 22579200:
	case 24000000:
	case 24576000:
	case 26000000:
		cs43130->mclk = freq_in;
		break;
	default:
		dev_err(codec->dev,
			"unsupported pll input reference clock:%d\n", freq_in);
		return -EINVAL;
	}

	switch (freq_out) {
	case 22579200:
		cs43130->mclk_int = freq_out;
		break;
	case 24576000:
		cs43130->mclk_int = freq_out;
		break;
	default:
		dev_err(codec->dev,
			"unsupported pll output ref clock: %u\n", freq_out);
		return -EINVAL;
	}

	ret = cs43130_pll_config(codec);
	dev_dbg(codec->dev, "cs43130->pll_bypass = %d", cs43130->pll_bypass);
	return ret;
}

static int cs43130_change_clksrc(struct snd_soc_codec *codec,
				 enum cs43130_mclk_src_sel src)
{
	int ret;
	struct cs43130_private *cs43130 = snd_soc_codec_get_drvdata(codec);
	int mclk_int_decoded;

	if (src == cs43130->mclk_int_src) {
		/* clk source has not changed */
		return 0;
	}

	switch (cs43130->mclk_int) {
	case CS43130_MCLK_22M:
		mclk_int_decoded = CS43130_MCLK_22P5;
		break;
	case CS43130_MCLK_24M:
		mclk_int_decoded = CS43130_MCLK_24P5;
		break;
	default:
		dev_err(codec->dev, "Invalid MCLK INT freq: %u\n", cs43130->mclk_int);
		return -EINVAL;
	}

	switch (src) {
	case CS43130_MCLK_SRC_EXT:
		cs43130->pll_bypass = true;
		cs43130->mclk_int_src = CS43130_MCLK_SRC_EXT;
		if (cs43130->xtal_ibias == CS43130_XTAL_UNUSED) {
			regmap_update_bits(cs43130->regmap, CS43130_PWDN_CTL,
					   CS43130_PDN_XTAL_MASK,
					   1 << CS43130_PDN_XTAL_SHIFT);
		} else {
			reinit_completion(&cs43130->xtal_rdy);
			regmap_update_bits(cs43130->regmap, CS43130_INT_MASK_1,
					   CS43130_XTAL_RDY_INT_MASK, 0);
			regmap_update_bits(cs43130->regmap, CS43130_PWDN_CTL,
					   CS43130_PDN_XTAL_MASK, 0);
			ret = wait_for_completion_timeout(&cs43130->xtal_rdy,
							  msecs_to_jiffies(100));
			regmap_update_bits(cs43130->regmap, CS43130_INT_MASK_1,
					   CS43130_XTAL_RDY_INT_MASK,
					   1 << CS43130_XTAL_RDY_INT_SHIFT);
			if (ret == 0) {
				dev_err(codec->dev, "Timeout waiting for XTAL_READY interrupt\n");
				return -ETIMEDOUT;
			}
		}

		regmap_update_bits(cs43130->regmap, CS43130_SYS_CLK_CTL_1,
				   CS43130_MCLK_SRC_SEL_MASK,
				   src << CS43130_MCLK_SRC_SEL_SHIFT);
		regmap_update_bits(cs43130->regmap, CS43130_SYS_CLK_CTL_1,
				   CS43130_MCLK_INT_MASK,
				   mclk_int_decoded << CS43130_MCLK_INT_SHIFT);
		usleep_range(150, 200);

		regmap_update_bits(cs43130->regmap, CS43130_PWDN_CTL,
				   CS43130_PDN_PLL_MASK,
				   1 << CS43130_PDN_PLL_SHIFT);
		break;
	case CS43130_MCLK_SRC_PLL:
		cs43130->pll_bypass = false;
		cs43130->mclk_int_src = CS43130_MCLK_SRC_PLL;
		if (cs43130->xtal_ibias == CS43130_XTAL_UNUSED) {
			regmap_update_bits(cs43130->regmap, CS43130_PWDN_CTL,
					   CS43130_PDN_XTAL_MASK,
					   1 << CS43130_PDN_XTAL_SHIFT);
		} else {
			reinit_completion(&cs43130->xtal_rdy);
			regmap_update_bits(cs43130->regmap, CS43130_INT_MASK_1,
					   CS43130_XTAL_RDY_INT_MASK, 0);
			regmap_update_bits(cs43130->regmap, CS43130_PWDN_CTL,
					   CS43130_PDN_XTAL_MASK, 0);
			ret = wait_for_completion_timeout(&cs43130->xtal_rdy,
							  msecs_to_jiffies(100));
			regmap_update_bits(cs43130->regmap, CS43130_INT_MASK_1,
					   CS43130_XTAL_RDY_INT_MASK,
					   1 << CS43130_XTAL_RDY_INT_SHIFT);
			if (ret == 0) {
				dev_err(codec->dev, "Timeout waiting for XTAL_READY interrupt\n");
				return -ETIMEDOUT;
			}
		}

		reinit_completion(&cs43130->pll_rdy);
		regmap_update_bits(cs43130->regmap, CS43130_INT_MASK_1,
				   CS43130_PLL_RDY_INT_MASK, 0);
		regmap_update_bits(cs43130->regmap, CS43130_PWDN_CTL,
				   CS43130_PDN_PLL_MASK, 0);
		ret = wait_for_completion_timeout(&cs43130->pll_rdy,
						  msecs_to_jiffies(100));
		regmap_update_bits(cs43130->regmap, CS43130_INT_MASK_1,
				   CS43130_PLL_RDY_INT_MASK,
				   1 << CS43130_PLL_RDY_INT_SHIFT);
		if (ret == 0) {
			dev_err(codec->dev, "Timeout waiting for PLL_READY interrupt\n");
			return -ETIMEDOUT;
		}

		regmap_update_bits(cs43130->regmap, CS43130_SYS_CLK_CTL_1,
				   CS43130_MCLK_SRC_SEL_MASK,
				   src << CS43130_MCLK_SRC_SEL_SHIFT);
		regmap_update_bits(cs43130->regmap, CS43130_SYS_CLK_CTL_1,
				   CS43130_MCLK_INT_MASK,
				   mclk_int_decoded << CS43130_MCLK_INT_SHIFT);
		usleep_range(150, 200);
		break;
	case CS43130_MCLK_SRC_RCO:
		cs43130->mclk_int_src = CS43130_MCLK_SRC_RCO;

		regmap_update_bits(cs43130->regmap, CS43130_SYS_CLK_CTL_1,
				   CS43130_MCLK_SRC_SEL_MASK,
				   src << CS43130_MCLK_SRC_SEL_SHIFT);
		regmap_update_bits(cs43130->regmap, CS43130_SYS_CLK_CTL_1,
				   CS43130_MCLK_INT_MASK,
				   CS43130_MCLK_22P5 << CS43130_MCLK_INT_SHIFT);
		usleep_range(150, 200);

		regmap_update_bits(cs43130->regmap, CS43130_PWDN_CTL,
				   CS43130_PDN_XTAL_MASK,
				   1 << CS43130_PDN_XTAL_SHIFT);
		regmap_update_bits(cs43130->regmap, CS43130_PWDN_CTL,
				   CS43130_PDN_PLL_MASK,
				   1 << CS43130_PDN_PLL_SHIFT);
		break;
	default:
		dev_err(codec->dev, "Invalid MCLK source value\n");
		return -EINVAL;
	}

	return 0;
}

static const struct cs43130_bitwidth_map cs43130_bitwidth_table[] = {
	{8,	CS43130_SP_BIT_SIZE_8,	CS43130_CH_BIT_SIZE_8},
	{16,	CS43130_SP_BIT_SIZE_16, CS43130_CH_BIT_SIZE_16},
	{24,	CS43130_SP_BIT_SIZE_24, CS43130_CH_BIT_SIZE_24},
	{32,	CS43130_SP_BIT_SIZE_32, CS43130_CH_BIT_SIZE_32},
};

static const struct cs43130_bitwidth_map *cs43130_get_bitwidth_table(
				unsigned int bitwidth)
{
	int i;

	for (i = 0; i < ARRAY_SIZE(cs43130_bitwidth_table); i++) {
		if (cs43130_bitwidth_table[i].bitwidth == bitwidth)
			return &cs43130_bitwidth_table[i];
	}

	return NULL;
}

static int cs43130_set_bitwidth(int dai_id, unsigned int bitwidth_dai,
			  struct regmap *regmap)
{
	const struct cs43130_bitwidth_map *bw_map;

	bw_map = cs43130_get_bitwidth_table(bitwidth_dai);
	if (!bw_map)
		return -EINVAL;

	switch (dai_id) {
	case CS43130_ASP_PCM_DAI:
	case CS43130_ASP_DOP_DAI:
		regmap_update_bits(regmap, CS43130_ASP_CH_1_SZ_EN,
				   CS43130_CH_BITSIZE_MASK, bw_map->ch_bit);
		regmap_update_bits(regmap, CS43130_ASP_CH_2_SZ_EN,
				   CS43130_CH_BITSIZE_MASK, bw_map->ch_bit);
		regmap_update_bits(regmap, CS43130_SP_BITSIZE,
				   CS43130_ASP_BITSIZE_MASK, bw_map->sp_bit);
		break;
	case CS43130_XSP_DOP_DAI:
		regmap_update_bits(regmap, CS43130_XSP_CH_1_SZ_EN,
				   CS43130_CH_BITSIZE_MASK, bw_map->ch_bit);
		regmap_update_bits(regmap, CS43130_XSP_CH_2_SZ_EN,
				   CS43130_CH_BITSIZE_MASK, bw_map->ch_bit);
		regmap_update_bits(regmap, CS43130_SP_BITSIZE,
				   CS43130_XSP_BITSIZE_MASK, bw_map->sp_bit <<
				   CS43130_XSP_BITSIZE_SHIFT);
		break;
	default:
		return -EINVAL;
	}

	return 0;
}

static const struct cs43130_rate_map cs43130_rate_table[] = {
	{32000,		CS43130_ASP_SPRATE_32K},
	{44100,		CS43130_ASP_SPRATE_44_1K},
	{48000,		CS43130_ASP_SPRATE_48K},
	{88200,		CS43130_ASP_SPRATE_88_2K},
	{96000,		CS43130_ASP_SPRATE_96K},
	{176400,	CS43130_ASP_SPRATE_176_4K},
	{192000,	CS43130_ASP_SPRATE_192K},
	{352800,	CS43130_ASP_SPRATE_352_8K},
	{384000,	CS43130_ASP_SPRATE_384K},
};

static const struct cs43130_rate_map *cs43130_get_rate_table(int fs)
{
	int i;

	for (i = 0; i < ARRAY_SIZE(cs43130_rate_table); i++) {
		if (cs43130_rate_table[i].fs == fs)
			return &cs43130_rate_table[i];
	}

	return NULL;
}

static const struct cs43130_clk_gen *cs43130_get_clk_gen(int mclk_int, int fs,
		const struct cs43130_clk_gen *clk_gen_table, int len_clk_gen_table)
{
	int i;

	for (i = 0; i < len_clk_gen_table; i++) {
		if (clk_gen_table[i].mclk_int == mclk_int &&
		    clk_gen_table[i].fs == fs)
			return &clk_gen_table[i];
	}

	return NULL;
}

static int cs43130_set_sp_fmt(int dai_id, unsigned int bitwidth_sclk,
			      struct snd_pcm_hw_params *params,
			      struct cs43130_private *cs43130)
{
	u16 frm_size;
	u16 hi_size;
	u8 frm_delay;
	u8 frm_phase;
	u8 frm_data;
	u8 sclk_edge;
	u8 lrck_edge;
	u8 clk_data;
	u8 loc_ch1;
	u8 loc_ch2;
	u8 dai_mode_val;
	const struct cs43130_clk_gen *clk_gen;

	switch (cs43130->dais[dai_id].dai_format) {
	case SND_SOC_DAIFMT_I2S:
		hi_size = bitwidth_sclk;
		frm_delay = 2;
		frm_phase = 0;
		break;
	case SND_SOC_DAIFMT_LEFT_J:
		hi_size = bitwidth_sclk;
		frm_delay = 2;
		frm_phase = 1;
		break;
	case SND_SOC_DAIFMT_DSP_A:
		hi_size = 1;
		frm_delay = 2;
		frm_phase = 1;
		break;
	case SND_SOC_DAIFMT_DSP_B:
		hi_size = 1;
		frm_delay = 0;
		frm_phase = 1;
		break;
	default:
		return -EINVAL;
	}

	switch (cs43130->dais[dai_id].dai_mode) {
	case SND_SOC_DAIFMT_CBS_CFS:
		dai_mode_val = 0;
		break;
	case SND_SOC_DAIFMT_CBM_CFM:
		dai_mode_val = 1;
		break;
	default:
		return -EINVAL;
	}

	frm_size = bitwidth_sclk * params_channels(params);
	sclk_edge = 1;
	lrck_edge = 0;
	loc_ch1 = 0;
	loc_ch2 = bitwidth_sclk * (params_channels(params) - 1);

	frm_data = frm_delay & CS43130_SP_FSD_MASK;
	frm_data |= (frm_phase << CS43130_SP_STP_SHIFT) & CS43130_SP_STP_MASK;

	clk_data = lrck_edge & CS43130_SP_LCPOL_IN_MASK;
	clk_data |= (lrck_edge << CS43130_SP_LCPOL_OUT_SHIFT) &
		    CS43130_SP_LCPOL_OUT_MASK;
	clk_data |= (sclk_edge << CS43130_SP_SCPOL_IN_SHIFT) &
		    CS43130_SP_SCPOL_IN_MASK;
	clk_data |= (sclk_edge << CS43130_SP_SCPOL_OUT_SHIFT) &
		    CS43130_SP_SCPOL_OUT_MASK;
	clk_data |= (dai_mode_val << CS43130_SP_MODE_SHIFT) &
		    CS43130_SP_MODE_MASK;

	switch (dai_id) {
	case CS43130_ASP_PCM_DAI:
	case CS43130_ASP_DOP_DAI:
		regmap_update_bits(cs43130->regmap, CS43130_ASP_LRCK_PERIOD_1,
			CS43130_SP_LCPR_DATA_MASK, (frm_size - 1) >>
			CS43130_SP_LCPR_LSB_DATA_SHIFT);
		regmap_update_bits(cs43130->regmap, CS43130_ASP_LRCK_PERIOD_2,
			CS43130_SP_LCPR_DATA_MASK, (frm_size - 1) >>
			CS43130_SP_LCPR_MSB_DATA_SHIFT);
		regmap_update_bits(cs43130->regmap, CS43130_ASP_LRCK_HI_TIME_1,
			CS43130_SP_LCHI_DATA_MASK, (hi_size - 1) >>
			CS43130_SP_LCHI_LSB_DATA_SHIFT);
		regmap_update_bits(cs43130->regmap, CS43130_ASP_LRCK_HI_TIME_2,
			CS43130_SP_LCHI_DATA_MASK, (hi_size - 1) >>
			CS43130_SP_LCHI_MSB_DATA_SHIFT);
		regmap_write(cs43130->regmap, CS43130_ASP_FRAME_CONF, frm_data);
		regmap_write(cs43130->regmap, CS43130_ASP_CH_1_LOC, loc_ch1);
		regmap_write(cs43130->regmap, CS43130_ASP_CH_2_LOC, loc_ch2);
		regmap_update_bits(cs43130->regmap, CS43130_ASP_CH_1_SZ_EN,
			CS43130_CH_EN_MASK, 1 << CS43130_CH_EN_SHIFT);
		regmap_update_bits(cs43130->regmap, CS43130_ASP_CH_2_SZ_EN,
			CS43130_CH_EN_MASK, 1 << CS43130_CH_EN_SHIFT);
		regmap_write(cs43130->regmap, CS43130_ASP_CLOCK_CONF, clk_data);
		break;
	case CS43130_XSP_DOP_DAI:
		regmap_update_bits(cs43130->regmap, CS43130_XSP_LRCK_PERIOD_1,
			CS43130_SP_LCPR_DATA_MASK, (frm_size - 1) >>
			CS43130_SP_LCPR_LSB_DATA_SHIFT);
		regmap_update_bits(cs43130->regmap, CS43130_XSP_LRCK_PERIOD_2,
			CS43130_SP_LCPR_DATA_MASK, (frm_size - 1) >>
			CS43130_SP_LCPR_MSB_DATA_SHIFT);
		regmap_update_bits(cs43130->regmap, CS43130_XSP_LRCK_HI_TIME_1,
			CS43130_SP_LCHI_DATA_MASK, (hi_size - 1) >>
			CS43130_SP_LCHI_LSB_DATA_SHIFT);
		regmap_update_bits(cs43130->regmap, CS43130_XSP_LRCK_HI_TIME_2,
			CS43130_SP_LCHI_DATA_MASK, (hi_size - 1) >>
			CS43130_SP_LCHI_MSB_DATA_SHIFT);
		regmap_write(cs43130->regmap, CS43130_XSP_FRAME_CONF, frm_data);
		regmap_write(cs43130->regmap, CS43130_XSP_CH_1_LOC, loc_ch1);
		regmap_write(cs43130->regmap, CS43130_XSP_CH_2_LOC, loc_ch2);
		regmap_update_bits(cs43130->regmap, CS43130_XSP_CH_1_SZ_EN,
			CS43130_CH_EN_MASK, 1 << CS43130_CH_EN_SHIFT);
		regmap_update_bits(cs43130->regmap, CS43130_XSP_CH_2_SZ_EN,
			CS43130_CH_EN_MASK, 1 << CS43130_CH_EN_SHIFT);
		regmap_write(cs43130->regmap, CS43130_XSP_CLOCK_CONF, clk_data);
		break;
	default:
		return -EINVAL;
	}

	switch (frm_size) {
	case 16:
		clk_gen = cs43130_get_clk_gen(cs43130->mclk_int,
					      params_rate(params),
					      cs43130_16_clk_gen,
					      ARRAY_SIZE(cs43130_16_clk_gen));
		break;
	case 32:
		clk_gen = cs43130_get_clk_gen(cs43130->mclk_int,
					      params_rate(params),
					      cs43130_32_clk_gen,
					      ARRAY_SIZE(cs43130_32_clk_gen));
		break;
	case 48:
		clk_gen = cs43130_get_clk_gen(cs43130->mclk_int,
					      params_rate(params),
					      cs43130_48_clk_gen,
					      ARRAY_SIZE(cs43130_48_clk_gen));
		break;
	case 64:
		clk_gen = cs43130_get_clk_gen(cs43130->mclk_int,
					      params_rate(params),
					      cs43130_64_clk_gen,
					      ARRAY_SIZE(cs43130_64_clk_gen));
		break;
	default:
		return -EINVAL;
	}

	if (!clk_gen)
		return -EINVAL;

	switch (dai_id) {
	case CS43130_ASP_PCM_DAI:
	case CS43130_ASP_DOP_DAI:
		regmap_write(cs43130->regmap, CS43130_ASP_DEN_1,
			     (clk_gen->den & CS43130_SP_M_LSB_DATA_MASK) >>
			     CS43130_SP_M_LSB_DATA_SHIFT);
		regmap_write(cs43130->regmap, CS43130_ASP_DEN_2,
			     (clk_gen->den & CS43130_SP_M_MSB_DATA_MASK) >>
			     CS43130_SP_M_MSB_DATA_SHIFT);
		regmap_write(cs43130->regmap, CS43130_ASP_NUM_1,
			     (clk_gen->num & CS43130_SP_N_LSB_DATA_MASK) >>
			     CS43130_SP_N_LSB_DATA_SHIFT);
		regmap_write(cs43130->regmap, CS43130_ASP_NUM_2,
			     (clk_gen->num & CS43130_SP_N_MSB_DATA_MASK) >>
			     CS43130_SP_N_MSB_DATA_SHIFT);
		break;
	case CS43130_XSP_DOP_DAI:
		regmap_write(cs43130->regmap, CS43130_XSP_DEN_1,
			     (clk_gen->den & CS43130_SP_M_LSB_DATA_MASK) >>
			     CS43130_SP_M_LSB_DATA_SHIFT);
		regmap_write(cs43130->regmap, CS43130_XSP_DEN_2,
			     (clk_gen->den & CS43130_SP_M_MSB_DATA_MASK) >>
			     CS43130_SP_M_MSB_DATA_SHIFT);
		regmap_write(cs43130->regmap, CS43130_XSP_NUM_1,
			     (clk_gen->num & CS43130_SP_N_LSB_DATA_MASK) >>
			     CS43130_SP_N_LSB_DATA_SHIFT);
		regmap_write(cs43130->regmap, CS43130_XSP_NUM_2,
			     (clk_gen->num & CS43130_SP_N_MSB_DATA_MASK) >>
			     CS43130_SP_N_MSB_DATA_SHIFT);
		break;
	default:
		return -EINVAL;
	}

	return 0;
}

static int cs43130_pcm_dsd_mix(bool en, struct regmap *regmap)
{
	if (en) {
		regmap_update_bits(regmap, CS43130_DSD_PCM_MIX_CTL,
				   CS43130_MIX_PCM_PREP_MASK,
				   1 << CS43130_MIX_PCM_PREP_SHIFT);
		usleep_range(6000, 6050);
		regmap_update_bits(regmap, CS43130_DSD_PCM_MIX_CTL,
				   CS43130_MIX_PCM_DSD_MASK,
				   1 << CS43130_MIX_PCM_DSD_SHIFT);
	} else {
		regmap_update_bits(regmap, CS43130_DSD_PCM_MIX_CTL,
				   CS43130_MIX_PCM_DSD_MASK,
				   0 << CS43130_MIX_PCM_DSD_SHIFT);
		usleep_range(1600, 1650);
		regmap_update_bits(regmap, CS43130_DSD_PCM_MIX_CTL,
				   CS43130_MIX_PCM_PREP_MASK,
				   0 << CS43130_MIX_PCM_PREP_SHIFT);
	}

	return 0;
}

static int cs43130_dsd_hw_params(struct snd_pcm_substream *substream,
				 struct snd_pcm_hw_params *params,
				 struct snd_soc_dai *dai)
{
	struct snd_soc_codec *codec = dai->codec;
	struct cs43130_private *cs43130 = snd_soc_codec_get_drvdata(codec);
	unsigned int required_clk;
	u8 dsd_speed;

	mutex_lock(&cs43130->clk_mutex);
	if (!cs43130->clk_req) {
		/* no DAI is currently using clk */
		if (!(CS43130_MCLK_22M % params_rate(params)))
			required_clk = CS43130_MCLK_22M;
		else
			required_clk = CS43130_MCLK_24M;

		cs43130_set_pll(codec, 0, 0, cs43130->mclk, required_clk);
		if (cs43130->pll_bypass)
			cs43130_change_clksrc(codec, CS43130_MCLK_SRC_EXT);
		else
			cs43130_change_clksrc(codec, CS43130_MCLK_SRC_PLL);
	}

	cs43130->clk_req++;
	if (cs43130->clk_req == 2)
		cs43130_pcm_dsd_mix(true, cs43130->regmap);
	mutex_unlock(&cs43130->clk_mutex);

	switch (params_rate(params)) {
	case 176400:
		dsd_speed = 0;
		break;
	case 352800:
		dsd_speed = 1;
		break;
	default:
		dev_err(codec->dev, "Rate(%u) not supported\n",
			params_rate(params));
		return -EINVAL;
	}

	if (cs43130->dais[dai->id].dai_mode == SND_SOC_DAIFMT_CBM_CFM)
		regmap_update_bits(cs43130->regmap, CS43130_DSD_INT_CFG,
				   CS43130_DSD_MASTER, CS43130_DSD_MASTER);
	else
		regmap_update_bits(cs43130->regmap, CS43130_DSD_INT_CFG,
				   CS43130_DSD_MASTER, 0);

	regmap_update_bits(cs43130->regmap, CS43130_DSD_PATH_CTL_2,
			   CS43130_DSD_SPEED_MASK,
			   dsd_speed << CS43130_DSD_SPEED_SHIFT);
	regmap_update_bits(cs43130->regmap, CS43130_DSD_PATH_CTL_2,
			   CS43130_DSD_SRC_MASK, CS43130_DSD_SRC_DSD <<
			   CS43130_DSD_SRC_SHIFT);

	return 0;
}

static int cs43130_hw_params(struct snd_pcm_substream *substream,
				 struct snd_pcm_hw_params *params,
				 struct snd_soc_dai *dai)
{
	struct snd_soc_codec *codec = dai->codec;
	struct cs43130_private *cs43130 = snd_soc_codec_get_drvdata(codec);
	const struct cs43130_rate_map *rate_map;
	unsigned int sclk = cs43130->dais[dai->id].sclk;
	unsigned int bitwidth_sclk;
	unsigned int bitwidth_dai = (unsigned int)(params_width(params));
	unsigned int required_clk;
	u8 dsd_speed;

	mutex_lock(&cs43130->clk_mutex);
	if (!cs43130->clk_req) {
		/* no DAI is currently using clk */
		if (!(CS43130_MCLK_22M % params_rate(params)))
			required_clk = CS43130_MCLK_22M;
		else
			required_clk = CS43130_MCLK_24M;

		cs43130_set_pll(codec, 0, 0, cs43130->mclk, required_clk);
		if (cs43130->pll_bypass)
			cs43130_change_clksrc(codec, CS43130_MCLK_SRC_EXT);
		else
			cs43130_change_clksrc(codec, CS43130_MCLK_SRC_PLL);
	}

	cs43130->clk_req++;
	if (cs43130->clk_req == 2)
		cs43130_pcm_dsd_mix(true, cs43130->regmap);
	mutex_unlock(&cs43130->clk_mutex);

	switch (dai->id) {
	case CS43130_ASP_DOP_DAI:
	case CS43130_XSP_DOP_DAI:
		/* DoP bitwidth is always 24-bit */
		bitwidth_dai = 24;
		sclk = params_rate(params) * bitwidth_dai *
		       params_channels(params);

		switch (params_rate(params)) {
		case 176400:
			dsd_speed = 0;
			break;
		case 352800:
			dsd_speed = 1;
			break;
		default:
			dev_err(codec->dev, "Rate(%u) not supported\n",
				params_rate(params));
			return -EINVAL;
		}

		regmap_update_bits(cs43130->regmap, CS43130_DSD_PATH_CTL_2,
				   CS43130_DSD_SPEED_MASK,
				   dsd_speed << CS43130_DSD_SPEED_SHIFT);
		break;
	case CS43130_ASP_PCM_DAI:
		rate_map = cs43130_get_rate_table(params_rate(params));
		if (!rate_map)
			return -EINVAL;

		regmap_write(cs43130->regmap, CS43130_SP_SRATE, rate_map->val);
		break;
	default:
		dev_err(codec->dev, "Invalid DAI (%d)\n", dai->id);
		return -EINVAL;
	}

	switch (dai->id) {
	case CS43130_ASP_DOP_DAI:
		regmap_update_bits(cs43130->regmap, CS43130_DSD_PATH_CTL_2,
				   CS43130_DSD_SRC_MASK, CS43130_DSD_SRC_ASP <<
				   CS43130_DSD_SRC_SHIFT);
		break;
	case CS43130_XSP_DOP_DAI:
		regmap_update_bits(cs43130->regmap, CS43130_DSD_PATH_CTL_2,
				   CS43130_DSD_SRC_MASK, CS43130_DSD_SRC_XSP <<
				   CS43130_DSD_SRC_SHIFT);
	}

	if (!sclk && cs43130->dais[dai->id].dai_mode == SND_SOC_DAIFMT_CBM_CFM)
		/* Calculate SCLK in master mode if unassigned */
		sclk = params_rate(params) * bitwidth_dai *
		       params_channels(params);

	if (!sclk) {
		/* at this point, SCLK must be set */
		dev_err(codec->dev, "SCLK freq is not set\n");
		return -EINVAL;
	}

	bitwidth_sclk = (sclk / params_rate(params)) / params_channels(params);
	if (bitwidth_sclk < bitwidth_dai) {
		dev_err(codec->dev, "Format not supported: SCLK freq is too low\n");
		return -EINVAL;
	}

	dev_dbg(codec->dev,
		"sclk = %u, fs = %d, bitwidth_dai = %u\n",
		sclk, params_rate(params), bitwidth_dai);

	dev_dbg(codec->dev,
		"bitwidth_sclk = %u, num_ch = %u\n",
		bitwidth_sclk, params_channels(params));

	cs43130_set_bitwidth(dai->id, bitwidth_dai, cs43130->regmap);
	cs43130_set_sp_fmt(dai->id, bitwidth_sclk, params, cs43130);

	return 0;
}

static int cs43130_hw_free(struct snd_pcm_substream *substream,
			   struct snd_soc_dai *dai)
{
	struct snd_soc_codec *codec = dai->codec;
	struct cs43130_private *cs43130 = snd_soc_codec_get_drvdata(codec);

	mutex_lock(&cs43130->clk_mutex);
	cs43130->clk_req--;
	if (!cs43130->clk_req) {
		/* no DAI is currently using clk */
		cs43130_change_clksrc(codec, CS43130_MCLK_SRC_RCO);
		cs43130_pcm_dsd_mix(false, cs43130->regmap);
	}
	mutex_unlock(&cs43130->clk_mutex);

	return 0;
}

static const DECLARE_TLV_DB_SCALE(pcm_vol_tlv, -12750, 50, 1);

static const char * const pcm_ch_text[] = {
	"Left-Right Ch",
	"Left-Left Ch",
	"Right-Left Ch",
	"Right-Right Ch",
};

static const struct reg_sequence pcm_ch_en_seq[] = {
	{CS43130_DXD1, 0x99},
	{0x180005, 0x8C},
	{0x180007, 0xAB},
	{0x180015, 0x31},
	{0x180017, 0xB2},
	{0x180025, 0x30},
	{0x180027, 0x84},
	{0x180035, 0x9C},
	{0x180037, 0xAE},
	{0x18000D, 0x24},
	{0x18000F, 0xA3},
	{0x18001D, 0x05},
	{0x18001F, 0xD4},
	{0x18002D, 0x0B},
	{0x18002F, 0xC7},
	{0x18003D, 0x71},
	{0x18003F, 0xE7},
	{CS43130_DXD1, 0},
};

static const struct reg_sequence pcm_ch_dis_seq[] = {
	{CS43130_DXD1, 0x99},
	{0x180005, 0x24},
	{0x180007, 0xA3},
	{0x180015, 0x05},
	{0x180017, 0xD4},
	{0x180025, 0x0B},
	{0x180027, 0xC7},
	{0x180035, 0x71},
	{0x180037, 0xE7},
	{0x18000D, 0x8C},
	{0x18000F, 0xAB},
	{0x18001D, 0x31},
	{0x18001F, 0xB2},
	{0x18002D, 0x30},
	{0x18002F, 0x84},
	{0x18003D, 0x9C},
	{0x18003F, 0xAE},
	{CS43130_DXD1, 0},
};

static int cs43130_pcm_ch_get(struct snd_kcontrol *kcontrol,
			      struct snd_ctl_elem_value *ucontrol)
{
	return snd_soc_get_enum_double(kcontrol, ucontrol);
}

static int cs43130_pcm_ch_put(struct snd_kcontrol *kcontrol,
			      struct snd_ctl_elem_value *ucontrol)
{
	struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
	unsigned int *item = ucontrol->value.enumerated.item;
	struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
	struct cs43130_private *cs43130 = snd_soc_codec_get_drvdata(codec);
	unsigned int val;

	if (item[0] >= e->items)
		return -EINVAL;
	val = snd_soc_enum_item_to_val(e, item[0]) << e->shift_l;

	switch (cs43130->dev_id) {
	case CS43131_CHIP_ID:
	case CS43198_CHIP_ID:
		if (val >= 2)
			regmap_multi_reg_write(cs43130->regmap, pcm_ch_en_seq,
					       ARRAY_SIZE(pcm_ch_en_seq));
		else
			regmap_multi_reg_write(cs43130->regmap, pcm_ch_dis_seq,
					       ARRAY_SIZE(pcm_ch_dis_seq));
	}

	return snd_soc_put_enum_double(kcontrol, ucontrol);
}

static SOC_ENUM_SINGLE_DECL(pcm_ch_enum, CS43130_PCM_PATH_CTL_2, 0,
			    pcm_ch_text);

static const char * const pcm_spd_texts[] = {
	"Fast",
	"Slow",
};

static SOC_ENUM_SINGLE_DECL(pcm_spd_enum, CS43130_PCM_FILT_OPT, 7,
			    pcm_spd_texts);

static const char * const dsd_texts[] = {
	"Off",
	"BCKA Mode",
	"BCKD Mode",
};

static const unsigned int dsd_values[] = {
	CS43130_DSD_SRC_DSD,
	CS43130_DSD_SRC_ASP,
	CS43130_DSD_SRC_XSP,
};

static SOC_VALUE_ENUM_SINGLE_DECL(dsd_enum, CS43130_DSD_INT_CFG, 0, 0x03,
				  dsd_texts, dsd_values);

static const struct snd_kcontrol_new cs43130_snd_controls[] = {
	SOC_DOUBLE_R_TLV("Master Playback Volume",
			 CS43130_PCM_VOL_A, CS43130_PCM_VOL_B, 0, 0xFF, 1,
			 pcm_vol_tlv),
	SOC_DOUBLE_R_TLV("Master DSD Playback Volume",
			 CS43130_DSD_VOL_A, CS43130_DSD_VOL_B, 0, 0xFF, 1,
			 pcm_vol_tlv),
	SOC_ENUM_EXT("PCM Ch Select", pcm_ch_enum, cs43130_pcm_ch_get,
		     cs43130_pcm_ch_put),
	SOC_ENUM("PCM Filter Speed", pcm_spd_enum),
	SOC_SINGLE("PCM Phase Compensation", CS43130_PCM_FILT_OPT, 6, 1, 0),
	SOC_SINGLE("PCM Nonoversample Emulate", CS43130_PCM_FILT_OPT, 5, 1, 0),
	SOC_SINGLE("PCM High-pass Filter", CS43130_PCM_FILT_OPT, 1, 1, 0),
	SOC_SINGLE("PCM De-emphasis Filter", CS43130_PCM_FILT_OPT, 0, 1, 0),
	SOC_ENUM("DSD Phase Modulation", dsd_enum),
};

static const struct reg_sequence pcm_seq[] = {
	{CS43130_DXD1, 0x99},
	{CS43130_DXD7, 0x01},
	{CS43130_DXD8, 0},
	{CS43130_DXD9, 0x01},
	{CS43130_DXD3, 0x12},
	{CS43130_DXD4, 0},
	{CS43130_DXD10, 0x28},
	{CS43130_DXD11, 0x28},
	{CS43130_DXD1, 0},
};

static const struct reg_sequence dsd_seq[] = {
	{CS43130_DXD1, 0x99},
	{CS43130_DXD7, 0x01},
	{CS43130_DXD8, 0},
	{CS43130_DXD9, 0x01},
	{CS43130_DXD3, 0x12},
	{CS43130_DXD4, 0},
	{CS43130_DXD10, 0x1E},
	{CS43130_DXD11, 0x20},
	{CS43130_DXD1, 0},
};

static const struct reg_sequence pop_free_seq[] = {
	{CS43130_DXD1, 0x99},
	{CS43130_DXD12, 0x0A},
	{CS43130_DXD1, 0},
};

static const struct reg_sequence pop_free_seq2[] = {
	{CS43130_DXD1, 0x99},
	{CS43130_DXD13, 0x20},
	{CS43130_DXD1, 0},
};

static const struct reg_sequence mute_seq[] = {
	{CS43130_DXD1, 0x99},
	{CS43130_DXD3, 0x12},
	{CS43130_DXD5, 0x02},
	{CS43130_DXD4, 0x12},
	{CS43130_DXD1, 0},
};

static const struct reg_sequence unmute_seq[] = {
	{CS43130_DXD1, 0x99},
	{CS43130_DXD3, 0x10},
	{CS43130_DXD5, 0},
	{CS43130_DXD4, 0x16},
	{CS43130_DXD1, 0},
};

static int cs43130_dsd_event(struct snd_soc_dapm_widget *w,
			      struct snd_kcontrol *kcontrol, int event)
{
	struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
	struct cs43130_private *cs43130 = snd_soc_codec_get_drvdata(codec);

	switch (event) {
	case SND_SOC_DAPM_PRE_PMU:
		switch (cs43130->dev_id) {
		case CS43130_CHIP_ID:
		case CS4399_CHIP_ID:
			regmap_multi_reg_write(cs43130->regmap, dsd_seq,
					       ARRAY_SIZE(dsd_seq));
		}
		break;
	case SND_SOC_DAPM_POST_PMU:
		regmap_update_bits(cs43130->regmap, CS43130_DSD_PATH_CTL_1,
				   CS43130_MUTE_MASK, 0);
		switch (cs43130->dev_id) {
		case CS43130_CHIP_ID:
		case CS4399_CHIP_ID:
			regmap_multi_reg_write(cs43130->regmap, unmute_seq,
					       ARRAY_SIZE(unmute_seq));
		}
		break;
	case SND_SOC_DAPM_PRE_PMD:
		switch (cs43130->dev_id) {
		case CS43130_CHIP_ID:
		case CS4399_CHIP_ID:
			regmap_multi_reg_write(cs43130->regmap, mute_seq,
					       ARRAY_SIZE(mute_seq));
			regmap_update_bits(cs43130->regmap,
					   CS43130_DSD_PATH_CTL_1,
					   CS43130_MUTE_MASK, CS43130_MUTE_EN);
			/*
			 * DSD Power Down Sequence
			 * According to Design, 130ms is preferred.
			 */
			msleep(130);
			break;
		case CS43131_CHIP_ID:
		case CS43198_CHIP_ID:
			regmap_update_bits(cs43130->regmap,
					   CS43130_DSD_PATH_CTL_1,
					   CS43130_MUTE_MASK, CS43130_MUTE_EN);
		}
		break;
	default:
		dev_err(codec->dev, "Invalid event = 0x%x\n", event);
		return -EINVAL;
	}
	return 0;
}

static int cs43130_pcm_event(struct snd_soc_dapm_widget *w,
			      struct snd_kcontrol *kcontrol, int event)
{
	struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
	struct cs43130_private *cs43130 = snd_soc_codec_get_drvdata(codec);

	switch (event) {
	case SND_SOC_DAPM_PRE_PMU:
		switch (cs43130->dev_id) {
		case CS43130_CHIP_ID:
		case CS4399_CHIP_ID:
			regmap_multi_reg_write(cs43130->regmap, pcm_seq,
					       ARRAY_SIZE(pcm_seq));
		}
		break;
	case SND_SOC_DAPM_POST_PMU:
		regmap_update_bits(cs43130->regmap, CS43130_PCM_PATH_CTL_1,
				   CS43130_MUTE_MASK, 0);
		switch (cs43130->dev_id) {
		case CS43130_CHIP_ID:
		case CS4399_CHIP_ID:
			regmap_multi_reg_write(cs43130->regmap, unmute_seq,
					       ARRAY_SIZE(unmute_seq));
		}
		break;
	case SND_SOC_DAPM_PRE_PMD:
		switch (cs43130->dev_id) {
		case CS43130_CHIP_ID:
		case CS4399_CHIP_ID:
			regmap_multi_reg_write(cs43130->regmap, mute_seq,
					       ARRAY_SIZE(mute_seq));
			regmap_update_bits(cs43130->regmap,
					   CS43130_PCM_PATH_CTL_1,
					   CS43130_MUTE_MASK, CS43130_MUTE_EN);
			/*
			 * PCM Power Down Sequence
			 * According to Design, 130ms is preferred.
			 */
			msleep(130);
			break;
		case CS43131_CHIP_ID:
		case CS43198_CHIP_ID:
			regmap_update_bits(cs43130->regmap,
					   CS43130_PCM_PATH_CTL_1,
					   CS43130_MUTE_MASK, CS43130_MUTE_EN);
		}
		break;
	default:
		dev_err(codec->dev, "Invalid event = 0x%x\n", event);
		return -EINVAL;
	}
	return 0;
}

static const struct reg_sequence dac_postpmu_seq[] = {
	{CS43130_DXD9, 0x0C},
	{CS43130_DXD3, 0x10},
	{CS43130_DXD4, 0x20},
};

static const struct reg_sequence dac_postpmd_seq[] = {
	{CS43130_DXD1, 0x99},
	{CS43130_DXD6, 0x01},
	{CS43130_DXD1, 0},
};

static int cs43130_dac_event(struct snd_soc_dapm_widget *w,
			     struct snd_kcontrol *kcontrol, int event)
{
	struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
	struct cs43130_private *cs43130 = snd_soc_codec_get_drvdata(codec);

	switch (event) {
	case SND_SOC_DAPM_PRE_PMU:
		switch (cs43130->dev_id) {
		case CS43130_CHIP_ID:
		case CS4399_CHIP_ID:
			regmap_multi_reg_write(cs43130->regmap, pop_free_seq,
					       ARRAY_SIZE(pop_free_seq));
			break;
		case CS43131_CHIP_ID:
		case CS43198_CHIP_ID:
			regmap_multi_reg_write(cs43130->regmap, pop_free_seq2,
					       ARRAY_SIZE(pop_free_seq2));
		}
		break;
	case SND_SOC_DAPM_POST_PMU:
		usleep_range(10000, 10050);

		regmap_write(cs43130->regmap, CS43130_DXD1, 0x99);

		switch (cs43130->dev_id) {
		case CS43130_CHIP_ID:
		case CS4399_CHIP_ID:
			regmap_multi_reg_write(cs43130->regmap, dac_postpmu_seq,
					       ARRAY_SIZE(dac_postpmu_seq));
			/*
			 * Per datasheet, Sec. PCM Power-Up Sequence.
			 * According to Design, CS43130_DXD12 must be 0 to meet
			 * THDN and Dynamic Range spec.
			 */
			msleep(1000);
			regmap_write(cs43130->regmap, CS43130_DXD12, 0);
			break;
		case CS43131_CHIP_ID:
		case CS43198_CHIP_ID:
			usleep_range(12000, 12010);
			regmap_write(cs43130->regmap, CS43130_DXD13, 0);
		}

		regmap_write(cs43130->regmap, CS43130_DXD1, 0);
		break;
	case SND_SOC_DAPM_POST_PMD:
		switch (cs43130->dev_id) {
		case CS43130_CHIP_ID:
		case CS4399_CHIP_ID:
			regmap_multi_reg_write(cs43130->regmap, dac_postpmd_seq,
					       ARRAY_SIZE(dac_postpmd_seq));
		}
		break;
	default:
		dev_err(codec->dev, "Invalid DAC event = 0x%x\n", event);
		return -EINVAL;
	}
	return 0;
}

static const struct reg_sequence hpin_prepmd_seq[] = {
	{CS43130_DXD1, 0x99},
	{CS43130_DXD15, 0x64},
	{CS43130_DXD14, 0},
	{CS43130_DXD2, 0},
	{CS43130_DXD1, 0},
};

static const struct reg_sequence hpin_postpmu_seq[] = {
	{CS43130_DXD1, 0x99},
	{CS43130_DXD2, 1},
	{CS43130_DXD14, 0xDC},
	{CS43130_DXD15, 0xE4},
	{CS43130_DXD1, 0},
};

static int cs43130_hpin_event(struct snd_soc_dapm_widget *w,
			      struct snd_kcontrol *kcontrol, int event)
{
	struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
	struct cs43130_private *cs43130 = snd_soc_codec_get_drvdata(codec);

	switch (event) {
	case SND_SOC_DAPM_POST_PMD:
		regmap_multi_reg_write(cs43130->regmap, hpin_prepmd_seq,
				       ARRAY_SIZE(hpin_prepmd_seq));
		break;
	case SND_SOC_DAPM_PRE_PMU:
		regmap_multi_reg_write(cs43130->regmap, hpin_postpmu_seq,
				       ARRAY_SIZE(hpin_postpmu_seq));
		break;
	default:
		dev_err(codec->dev, "Invalid HPIN event = 0x%x\n", event);
		return -EINVAL;
	}
	return 0;
}

static const struct snd_soc_dapm_widget digital_hp_widgets[] = {
	SND_SOC_DAPM_OUTPUT("HPOUTA"),
	SND_SOC_DAPM_OUTPUT("HPOUTB"),

	SND_SOC_DAPM_AIF_IN_E("ASPIN PCM", NULL, 0, CS43130_PWDN_CTL,
			      CS43130_PDN_ASP_SHIFT, 1, cs43130_pcm_event,
			      (SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU |
			       SND_SOC_DAPM_PRE_PMD)),

	SND_SOC_DAPM_AIF_IN_E("ASPIN DoP", NULL, 0, CS43130_PWDN_CTL,
			      CS43130_PDN_ASP_SHIFT, 1, cs43130_dsd_event,
			      (SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU |
			       SND_SOC_DAPM_PRE_PMD)),

	SND_SOC_DAPM_AIF_IN_E("XSPIN DoP", NULL, 0, CS43130_PWDN_CTL,
			      CS43130_PDN_XSP_SHIFT, 1, cs43130_dsd_event,
			      (SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU |
			       SND_SOC_DAPM_PRE_PMD)),

	SND_SOC_DAPM_AIF_IN_E("XSPIN DSD", NULL, 0, CS43130_PWDN_CTL,
			      CS43130_PDN_DSDIF_SHIFT, 1, cs43130_dsd_event,
			      (SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU |
			       SND_SOC_DAPM_PRE_PMD)),

	SND_SOC_DAPM_DAC("DSD", NULL, CS43130_DSD_PATH_CTL_2,
			 CS43130_DSD_EN_SHIFT, 0),

	SND_SOC_DAPM_DAC_E("HiFi DAC", NULL, CS43130_PWDN_CTL,
			   CS43130_PDN_HP_SHIFT, 1, cs43130_dac_event,
			   (SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU |
			    SND_SOC_DAPM_POST_PMD)),
};

static const struct snd_soc_dapm_widget analog_hp_widgets[] = {
	SND_SOC_DAPM_DAC_E("Analog Playback", NULL, CS43130_HP_OUT_CTL_1,
			   CS43130_HP_IN_EN_SHIFT, 0, cs43130_hpin_event,
			   (SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD)),
};

static struct snd_soc_dapm_widget all_hp_widgets[
			ARRAY_SIZE(digital_hp_widgets) +
			ARRAY_SIZE(analog_hp_widgets)];

static const struct snd_soc_dapm_route digital_hp_routes[] = {
	{"ASPIN PCM", NULL, "ASP PCM Playback"},
	{"ASPIN DoP", NULL, "ASP DoP Playback"},
	{"XSPIN DoP", NULL, "XSP DoP Playback"},
	{"XSPIN DSD", NULL, "XSP DSD Playback"},
	{"DSD", NULL, "ASPIN DoP"},
	{"DSD", NULL, "XSPIN DoP"},
	{"DSD", NULL, "XSPIN DSD"},
	{"HiFi DAC", NULL, "ASPIN PCM"},
	{"HiFi DAC", NULL, "DSD"},
	{"HPOUTA", NULL, "HiFi DAC"},
	{"HPOUTB", NULL, "HiFi DAC"},
};

static const struct snd_soc_dapm_route analog_hp_routes[] = {
	{"HPOUTA", NULL, "Analog Playback"},
	{"HPOUTB", NULL, "Analog Playback"},
};

static struct snd_soc_dapm_route all_hp_routes[
			ARRAY_SIZE(digital_hp_routes) +
			ARRAY_SIZE(analog_hp_routes)];

static const unsigned int cs43130_asp_src_rates[] = {
	32000, 44100, 48000, 88200, 96000, 176400, 192000, 352800, 384000
};

static const struct snd_pcm_hw_constraint_list cs43130_asp_constraints = {
	.count	= ARRAY_SIZE(cs43130_asp_src_rates),
	.list	= cs43130_asp_src_rates,
};

static int cs43130_pcm_startup(struct snd_pcm_substream *substream,
			       struct snd_soc_dai *dai)
{
	return snd_pcm_hw_constraint_list(substream->runtime, 0,
					  SNDRV_PCM_HW_PARAM_RATE,
					  &cs43130_asp_constraints);
}

static const unsigned int cs43130_dop_src_rates[] = {
	176400, 352800,
};

static const struct snd_pcm_hw_constraint_list cs43130_dop_constraints = {
	.count	= ARRAY_SIZE(cs43130_dop_src_rates),
	.list	= cs43130_dop_src_rates,
};

static int cs43130_dop_startup(struct snd_pcm_substream *substream,
			       struct snd_soc_dai *dai)
{
	return snd_pcm_hw_constraint_list(substream->runtime, 0,
					  SNDRV_PCM_HW_PARAM_RATE,
					  &cs43130_dop_constraints);
}

static int cs43130_pcm_set_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
{
	struct snd_soc_codec *codec = codec_dai->codec;
	struct cs43130_private *cs43130 = snd_soc_codec_get_drvdata(codec);

	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
	case SND_SOC_DAIFMT_CBS_CFS:
		cs43130->dais[codec_dai->id].dai_mode = SND_SOC_DAIFMT_CBS_CFS;
		break;
	case SND_SOC_DAIFMT_CBM_CFM:
		cs43130->dais[codec_dai->id].dai_mode = SND_SOC_DAIFMT_CBM_CFM;
		break;
	default:
		dev_err(codec->dev, "unsupported mode\n");
		return -EINVAL;
	}

	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
	case SND_SOC_DAIFMT_I2S:
		cs43130->dais[codec_dai->id].dai_format = SND_SOC_DAIFMT_I2S;
		break;
	case SND_SOC_DAIFMT_LEFT_J:
		cs43130->dais[codec_dai->id].dai_format = SND_SOC_DAIFMT_LEFT_J;
		break;
	case SND_SOC_DAIFMT_DSP_A:
		cs43130->dais[codec_dai->id].dai_format = SND_SOC_DAIFMT_DSP_A;
		break;
	case SND_SOC_DAIFMT_DSP_B:
		cs43130->dais[codec_dai->id].dai_format = SND_SOC_DAIFMT_DSP_B;
		break;
	default:
		dev_err(codec->dev,
			"unsupported audio format\n");
		return -EINVAL;
	}

	dev_dbg(codec->dev, "dai_id = %d,  dai_mode = %u, dai_format = %u\n",
		codec_dai->id,
		cs43130->dais[codec_dai->id].dai_mode,
		cs43130->dais[codec_dai->id].dai_format);

	return 0;
}

static int cs43130_dsd_set_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
{
	struct snd_soc_codec *codec = codec_dai->codec;
	struct cs43130_private *cs43130 = snd_soc_codec_get_drvdata(codec);

	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
	case SND_SOC_DAIFMT_CBS_CFS:
		cs43130->dais[codec_dai->id].dai_mode = SND_SOC_DAIFMT_CBS_CFS;
		break;
	case SND_SOC_DAIFMT_CBM_CFM:
		cs43130->dais[codec_dai->id].dai_mode = SND_SOC_DAIFMT_CBM_CFM;
		break;
	default:
		dev_err(codec->dev, "Unsupported DAI format.\n");
		return -EINVAL;
	}

	dev_dbg(codec->dev, "dai_mode = 0x%x\n",
		cs43130->dais[codec_dai->id].dai_mode);

	return 0;
}

static int cs43130_set_sysclk(struct snd_soc_dai *codec_dai,
				  int clk_id, unsigned int freq, int dir)
{
	struct snd_soc_codec *codec = codec_dai->codec;
	struct cs43130_private *cs43130 = snd_soc_codec_get_drvdata(codec);

	cs43130->dais[codec_dai->id].sclk = freq;
	dev_dbg(codec->dev, "dai_id = %d,  sclk = %u\n", codec_dai->id,
		cs43130->dais[codec_dai->id].sclk);

	return 0;
}

static const struct snd_soc_dai_ops cs43130_pcm_ops = {
	.startup	= cs43130_pcm_startup,
	.hw_params	= cs43130_hw_params,
	.hw_free	= cs43130_hw_free,
	.set_sysclk	= cs43130_set_sysclk,
	.set_fmt	= cs43130_pcm_set_fmt,
};

static const struct snd_soc_dai_ops cs43130_dop_ops = {
	.startup	= cs43130_dop_startup,
	.hw_params	= cs43130_hw_params,
	.hw_free	= cs43130_hw_free,
	.set_sysclk	= cs43130_set_sysclk,
	.set_fmt	= cs43130_pcm_set_fmt,
};

static const struct snd_soc_dai_ops cs43130_dsd_ops = {
	.startup        = cs43130_dop_startup,
	.hw_params	= cs43130_dsd_hw_params,
	.hw_free	= cs43130_hw_free,
	.set_fmt	= cs43130_dsd_set_fmt,
};

static struct snd_soc_dai_driver cs43130_dai[] = {
	{
		.name = "cs43130-asp-pcm",
		.id = CS43130_ASP_PCM_DAI,
		.playback = {
			.stream_name = "ASP PCM Playback",
			.channels_min = 1,
			.channels_max = 2,
			.rates = SNDRV_PCM_RATE_KNOT,
			.formats = CS43130_PCM_FORMATS,
		},
		.ops = &cs43130_pcm_ops,
		.symmetric_rates = 1,
	},
	{
		.name = "cs43130-asp-dop",
		.id = CS43130_ASP_DOP_DAI,
		.playback = {
			.stream_name = "ASP DoP Playback",
			.channels_min = 1,
			.channels_max = 2,
			.rates = SNDRV_PCM_RATE_KNOT,
			.formats = CS43130_DOP_FORMATS,
		},
		.ops = &cs43130_dop_ops,
		.symmetric_rates = 1,
	},
	{
		.name = "cs43130-xsp-dop",
		.id = CS43130_XSP_DOP_DAI,
		.playback = {
			.stream_name = "XSP DoP Playback",
			.channels_min = 1,
			.channels_max = 2,
			.rates = SNDRV_PCM_RATE_KNOT,
			.formats = CS43130_DOP_FORMATS,
		},
		.ops = &cs43130_dop_ops,
		.symmetric_rates = 1,
	},
	{
		.name = "cs43130-xsp-dsd",
		.id = CS43130_XSP_DSD_DAI,
		.playback = {
			.stream_name = "XSP DSD Playback",
			.channels_min = 1,
			.channels_max = 2,
			.rates = SNDRV_PCM_RATE_KNOT,
			.formats = CS43130_DOP_FORMATS,
		},
		.ops = &cs43130_dsd_ops,
	},

};

static int cs43130_codec_set_sysclk(struct snd_soc_codec *codec,
				    int clk_id, int source, unsigned int freq,
				    int dir)
{
	struct cs43130_private *cs43130 = snd_soc_codec_get_drvdata(codec);

	dev_dbg(codec->dev, "clk_id = %d, source = %d, freq = %d, dir = %d\n",
		clk_id, source, freq, dir);

	switch (freq) {
	case CS43130_MCLK_22M:
	case CS43130_MCLK_24M:
		cs43130->mclk = freq;
		break;
	default:
		dev_err(codec->dev, "Invalid MCLK INT freq: %u\n", freq);
		return -EINVAL;
	}

	if (source == CS43130_MCLK_SRC_EXT) {
		cs43130->pll_bypass = true;
	} else {
		dev_err(codec->dev, "Invalid MCLK source\n");
		return -EINVAL;
	}

	return 0;
}

static inline u16 cs43130_get_ac_reg_val(u16 ac_freq)
{
	/* AC freq is counted in 5.94Hz step. */
	return ac_freq / 6;
}

static int cs43130_show_dc(struct device *dev, char *buf, u8 ch)
{
	struct i2c_client *client = to_i2c_client(dev);
	struct cs43130_private *cs43130 = i2c_get_clientdata(client);

	if (!cs43130->hpload_done)
		return scnprintf(buf, PAGE_SIZE, "NO_HPLOAD\n");
	else
		return scnprintf(buf, PAGE_SIZE, "%u\n",
				 cs43130->hpload_dc[ch]);
}

static ssize_t cs43130_show_dc_l(struct device *dev,
				 struct device_attribute *attr, char *buf)
{
	return cs43130_show_dc(dev, buf, HP_LEFT);
}

static ssize_t cs43130_show_dc_r(struct device *dev,
				 struct device_attribute *attr, char *buf)
{
	return cs43130_show_dc(dev, buf, HP_RIGHT);
}

static u16 const cs43130_ac_freq[CS43130_AC_FREQ] = {
	24,
	43,
	93,
	200,
	431,
	928,
	2000,
	4309,
	9283,
	20000,
};

static int cs43130_show_ac(struct device *dev, char *buf, u8 ch)
{
	int i, j = 0, tmp;
	struct i2c_client *client = to_i2c_client(dev);
	struct cs43130_private *cs43130 = i2c_get_clientdata(client);

	if (cs43130->hpload_done && cs43130->ac_meas) {
		for (i = 0; i < ARRAY_SIZE(cs43130_ac_freq); i++) {
			tmp = scnprintf(buf + j, PAGE_SIZE - j, "%u\n",
					cs43130->hpload_ac[i][ch]);
			if (!tmp)
				break;

			j += tmp;
		}

		return j;
	} else {
		return scnprintf(buf, PAGE_SIZE, "NO_HPLOAD\n");
	}
}

static ssize_t cs43130_show_ac_l(struct device *dev,
				 struct device_attribute *attr, char *buf)
{
	return cs43130_show_ac(dev, buf, HP_LEFT);
}

static ssize_t cs43130_show_ac_r(struct device *dev,
				 struct device_attribute *attr, char *buf)
{
	return cs43130_show_ac(dev, buf, HP_RIGHT);
}

static DEVICE_ATTR(hpload_dc_l, S_IRUGO, cs43130_show_dc_l, NULL);
static DEVICE_ATTR(hpload_dc_r, S_IRUGO, cs43130_show_dc_r, NULL);
static DEVICE_ATTR(hpload_ac_l, S_IRUGO, cs43130_show_ac_l, NULL);
static DEVICE_ATTR(hpload_ac_r, S_IRUGO, cs43130_show_ac_r, NULL);

static struct reg_sequence hp_en_cal_seq[] = {
	{CS43130_INT_MASK_4, CS43130_INT_MASK_ALL},
	{CS43130_HP_MEAS_LOAD_1, 0},
	{CS43130_HP_MEAS_LOAD_2, 0},
	{CS43130_INT_MASK_4, 0},
	{CS43130_DXD1, 0x99},
	{CS43130_DXD16, 0xBB},
	{CS43130_DXD12, 0x01},
	{CS43130_DXD19, 0xCB},
	{CS43130_DXD17, 0x95},
	{CS43130_DXD18, 0x0B},
	{CS43130_DXD1, 0},
	{CS43130_HP_LOAD_1, 0x80},
};

static struct reg_sequence hp_en_cal_seq2[] = {
	{CS43130_INT_MASK_4, CS43130_INT_MASK_ALL},
	{CS43130_HP_MEAS_LOAD_1, 0},
	{CS43130_HP_MEAS_LOAD_2, 0},
	{CS43130_INT_MASK_4, 0},
	{CS43130_HP_LOAD_1, 0x80},
};

static struct reg_sequence hp_dis_cal_seq[] = {
	{CS43130_HP_LOAD_1, 0x80},
	{CS43130_DXD1, 0x99},
	{CS43130_DXD12, 0},
	{CS43130_DXD1, 0},
	{CS43130_HP_LOAD_1, 0},
};

static struct reg_sequence hp_dis_cal_seq2[] = {
	{CS43130_HP_LOAD_1, 0x80},
	{CS43130_HP_LOAD_1, 0},
};

static struct reg_sequence hp_dc_ch_l_seq[] = {
	{CS43130_DXD1, 0x99},
	{CS43130_DXD19, 0x0A},
	{CS43130_DXD17, 0x93},
	{CS43130_DXD18, 0x0A},
	{CS43130_DXD1, 0},
	{CS43130_HP_LOAD_1, 0x80},
	{CS43130_HP_LOAD_1, 0x81},
};

static struct reg_sequence hp_dc_ch_l_seq2[] = {
	{CS43130_HP_LOAD_1, 0x80},
	{CS43130_HP_LOAD_1, 0x81},
};

static struct reg_sequence hp_dc_ch_r_seq[] = {
	{CS43130_DXD1, 0x99},
	{CS43130_DXD19, 0x8A},
	{CS43130_DXD17, 0x15},
	{CS43130_DXD18, 0x06},
	{CS43130_DXD1, 0},
	{CS43130_HP_LOAD_1, 0x90},
	{CS43130_HP_LOAD_1, 0x91},
};

static struct reg_sequence hp_dc_ch_r_seq2[] = {
	{CS43130_HP_LOAD_1, 0x90},
	{CS43130_HP_LOAD_1, 0x91},
};

static struct reg_sequence hp_ac_ch_l_seq[] = {
	{CS43130_DXD1, 0x99},
	{CS43130_DXD19, 0x0A},
	{CS43130_DXD17, 0x93},
	{CS43130_DXD18, 0x0A},
	{CS43130_DXD1, 0},
	{CS43130_HP_LOAD_1, 0x80},
	{CS43130_HP_LOAD_1, 0x82},
};

static struct reg_sequence hp_ac_ch_l_seq2[] = {
	{CS43130_HP_LOAD_1, 0x80},
	{CS43130_HP_LOAD_1, 0x82},
};

static struct reg_sequence hp_ac_ch_r_seq[] = {
	{CS43130_DXD1, 0x99},
	{CS43130_DXD19, 0x8A},
	{CS43130_DXD17, 0x15},
	{CS43130_DXD18, 0x06},
	{CS43130_DXD1, 0},
	{CS43130_HP_LOAD_1, 0x90},
	{CS43130_HP_LOAD_1, 0x92},
};

static struct reg_sequence hp_ac_ch_r_seq2[] = {
	{CS43130_HP_LOAD_1, 0x90},
	{CS43130_HP_LOAD_1, 0x92},
};

static struct reg_sequence hp_cln_seq[] = {
	{CS43130_INT_MASK_4, CS43130_INT_MASK_ALL},
	{CS43130_HP_MEAS_LOAD_1, 0},
	{CS43130_HP_MEAS_LOAD_2, 0},
};

struct reg_sequences {
	struct reg_sequence	*seq;
	int			size;
	unsigned int		msk;
};

static struct reg_sequences hpload_seq1[] = {
	{
		.seq	= hp_en_cal_seq,
		.size	= ARRAY_SIZE(hp_en_cal_seq),
		.msk	= CS43130_HPLOAD_ON_INT,
	},
	{
		.seq	= hp_dc_ch_l_seq,
		.size	= ARRAY_SIZE(hp_dc_ch_l_seq),
		.msk	= CS43130_HPLOAD_DC_INT,
	},
	{
		.seq	= hp_ac_ch_l_seq,
		.size	= ARRAY_SIZE(hp_ac_ch_l_seq),
		.msk	= CS43130_HPLOAD_AC_INT,
	},
	{
		.seq	= hp_dis_cal_seq,
		.size	= ARRAY_SIZE(hp_dis_cal_seq),
		.msk	= CS43130_HPLOAD_OFF_INT,
	},
	{
		.seq	= hp_en_cal_seq,
		.size	= ARRAY_SIZE(hp_en_cal_seq),
		.msk	= CS43130_HPLOAD_ON_INT,
	},
	{
		.seq	= hp_dc_ch_r_seq,
		.size	= ARRAY_SIZE(hp_dc_ch_r_seq),
		.msk	= CS43130_HPLOAD_DC_INT,
	},
	{
		.seq	= hp_ac_ch_r_seq,
		.size	= ARRAY_SIZE(hp_ac_ch_r_seq),
		.msk	= CS43130_HPLOAD_AC_INT,
	},
};

static struct reg_sequences hpload_seq2[] = {
	{
		.seq	= hp_en_cal_seq2,
		.size	= ARRAY_SIZE(hp_en_cal_seq2),
		.msk	= CS43130_HPLOAD_ON_INT,
	},
	{
		.seq	= hp_dc_ch_l_seq2,
		.size	= ARRAY_SIZE(hp_dc_ch_l_seq2),
		.msk	= CS43130_HPLOAD_DC_INT,
	},
	{
		.seq	= hp_ac_ch_l_seq2,
		.size	= ARRAY_SIZE(hp_ac_ch_l_seq2),
		.msk	= CS43130_HPLOAD_AC_INT,
	},
	{
		.seq	= hp_dis_cal_seq2,
		.size	= ARRAY_SIZE(hp_dis_cal_seq2),
		.msk	= CS43130_HPLOAD_OFF_INT,
	},
	{
		.seq	= hp_en_cal_seq2,
		.size	= ARRAY_SIZE(hp_en_cal_seq2),
		.msk	= CS43130_HPLOAD_ON_INT,
	},
	{
		.seq	= hp_dc_ch_r_seq2,
		.size	= ARRAY_SIZE(hp_dc_ch_r_seq2),
		.msk	= CS43130_HPLOAD_DC_INT,
	},
	{
		.seq	= hp_ac_ch_r_seq2,
		.size	= ARRAY_SIZE(hp_ac_ch_r_seq2),
		.msk	= CS43130_HPLOAD_AC_INT,
	},
};

static int cs43130_update_hpload(unsigned int msk, int ac_idx,
				 struct cs43130_private *cs43130)
{
	bool left_ch = true;
	unsigned int reg;
	u32 addr;
	u16 impedance;
	struct snd_soc_codec *codec = cs43130->codec;

	switch (msk) {
	case CS43130_HPLOAD_DC_INT:
	case CS43130_HPLOAD_AC_INT:
		break;
	default:
		return 0;
	}

	regmap_read(cs43130->regmap, CS43130_HP_LOAD_1, &reg);
	if (reg & CS43130_HPLOAD_CHN_SEL)
		left_ch = false;

	if (msk == CS43130_HPLOAD_DC_INT)
		addr = CS43130_HP_DC_STAT_1;
	else
		addr = CS43130_HP_AC_STAT_1;

	regmap_read(cs43130->regmap, addr, &reg);
	impedance = reg >> 3;
	regmap_read(cs43130->regmap, addr + 1, &reg);
	impedance |= reg << 5;

	if (msk == CS43130_HPLOAD_DC_INT) {
		if (left_ch)
			cs43130->hpload_dc[HP_LEFT] = impedance;
		else
			cs43130->hpload_dc[HP_RIGHT] = impedance;

		dev_dbg(codec->dev, "HP DC impedance (Ch %u): %u\n", !left_ch,
			impedance);
	} else {
		if (left_ch)
			cs43130->hpload_ac[ac_idx][HP_LEFT] = impedance;
		else
			cs43130->hpload_ac[ac_idx][HP_RIGHT] = impedance;

		dev_dbg(codec->dev, "HP AC (%u Hz) impedance (Ch %u): %u\n",
			cs43130->ac_freq[ac_idx], !left_ch, impedance);
	}

	return 0;
}

static int cs43130_hpload_proc(struct cs43130_private *cs43130,
			       struct reg_sequence *seq, int seq_size,
			       unsigned int rslt_msk, int ac_idx)
{
	int ret;
	unsigned int msk;
	u16 ac_reg_val;
	struct snd_soc_codec *codec = cs43130->codec;

	reinit_completion(&cs43130->hpload_evt);

	if (rslt_msk == CS43130_HPLOAD_AC_INT) {
		ac_reg_val = cs43130_get_ac_reg_val(cs43130->ac_freq[ac_idx]);
		regmap_update_bits(cs43130->regmap, CS43130_HP_LOAD_1,
				   CS43130_HPLOAD_AC_START, 0);
		regmap_update_bits(cs43130->regmap, CS43130_HP_MEAS_LOAD_1,
				   CS43130_HP_MEAS_LOAD_MASK,
				   ac_reg_val >> CS43130_HP_MEAS_LOAD_1_SHIFT);
		regmap_update_bits(cs43130->regmap, CS43130_HP_MEAS_LOAD_2,
				   CS43130_HP_MEAS_LOAD_MASK,
				   ac_reg_val >> CS43130_HP_MEAS_LOAD_2_SHIFT);
	}

	regmap_multi_reg_write(cs43130->regmap, seq,
			       seq_size);

	ret = wait_for_completion_timeout(&cs43130->hpload_evt,
					  msecs_to_jiffies(1000));
	regmap_read(cs43130->regmap, CS43130_INT_MASK_4, &msk);
	if (!ret) {
		dev_err(codec->dev, "Timeout waiting for HPLOAD interrupt\n");
		return -1;
	}

	dev_dbg(codec->dev, "HP load stat: %x, INT_MASK_4: %x\n",
		cs43130->hpload_stat, msk);
	if ((cs43130->hpload_stat & (CS43130_HPLOAD_NO_DC_INT |
				     CS43130_HPLOAD_UNPLUG_INT |
				     CS43130_HPLOAD_OOR_INT)) ||
	    !(cs43130->hpload_stat & rslt_msk)) {
		dev_dbg(codec->dev, "HP load measure failed\n");
		return -1;
	}

	return 0;
}

static const struct reg_sequence hv_seq[][2] = {
	{
		{CS43130_CLASS_H_CTL, 0x1C},
		{CS43130_HP_OUT_CTL_1, 0x10},
	},
	{
		{CS43130_CLASS_H_CTL, 0x1E},
		{CS43130_HP_OUT_CTL_1, 0x20},
	},
	{
		{CS43130_CLASS_H_CTL, 0x1E},
		{CS43130_HP_OUT_CTL_1, 0x30},
	},
};

static int cs43130_set_hv(struct regmap *regmap, u16 hpload_dc,
			  const u16 *dc_threshold)
{
	int i;

	for (i = 0; i < CS43130_DC_THRESHOLD; i++) {
		if (hpload_dc <= dc_threshold[i])
			break;
	}

	regmap_multi_reg_write(regmap, hv_seq[i], ARRAY_SIZE(hv_seq[i]));

	return 0;
}

static void cs43130_imp_meas(struct work_struct *wk)
{
	unsigned int reg, seq_size;
	int i, ret, ac_idx;
	struct cs43130_private *cs43130;
	struct snd_soc_codec *codec;
	struct reg_sequences *hpload_seq;

	cs43130 = container_of(wk, struct cs43130_private, work);
	codec = cs43130->codec;

	if (!cs43130->mclk)
		return;

	cs43130->hpload_done = false;

	mutex_lock(&cs43130->clk_mutex);
	if (!cs43130->clk_req) {
		/* clk not in use */
		cs43130_set_pll(codec, 0, 0, cs43130->mclk, CS43130_MCLK_22M);
		if (cs43130->pll_bypass)
			cs43130_change_clksrc(codec, CS43130_MCLK_SRC_EXT);
		else
			cs43130_change_clksrc(codec, CS43130_MCLK_SRC_PLL);
	}

	cs43130->clk_req++;
	mutex_unlock(&cs43130->clk_mutex);

	regmap_read(cs43130->regmap, CS43130_INT_STATUS_4, &reg);

	switch (cs43130->dev_id) {
	case CS43130_CHIP_ID:
		hpload_seq = hpload_seq1;
		seq_size = ARRAY_SIZE(hpload_seq1);
		break;
	case CS43131_CHIP_ID:
		hpload_seq = hpload_seq2;
		seq_size = ARRAY_SIZE(hpload_seq2);
		break;
	default:
		WARN(1, "Invalid dev_id for meas: %d", cs43130->dev_id);
		return;
	}

	i = 0;
	ac_idx = 0;
	while (i < seq_size) {
		ret = cs43130_hpload_proc(cs43130, hpload_seq[i].seq,
					  hpload_seq[i].size,
					  hpload_seq[i].msk, ac_idx);
		if (ret < 0)
			goto exit;

		cs43130_update_hpload(hpload_seq[i].msk, ac_idx, cs43130);

		if (cs43130->ac_meas &&
		    hpload_seq[i].msk == CS43130_HPLOAD_AC_INT &&
		    ac_idx < CS43130_AC_FREQ - 1) {
			ac_idx++;
		} else {
			ac_idx = 0;
			i++;
		}
	}
	cs43130->hpload_done = true;

	if (cs43130->hpload_dc[HP_LEFT] >= CS43130_LINEOUT_LOAD)
		snd_soc_jack_report(&cs43130->jack, CS43130_JACK_LINEOUT,
				    CS43130_JACK_MASK);
	else
		snd_soc_jack_report(&cs43130->jack, CS43130_JACK_HEADPHONE,
				    CS43130_JACK_MASK);

	dev_dbg(codec->dev, "Set HP output control. DC threshold\n");
	for (i = 0; i < CS43130_DC_THRESHOLD; i++)
		dev_dbg(codec->dev, "DC threshold[%d]: %u.\n", i,
			cs43130->dc_threshold[i]);

	cs43130_set_hv(cs43130->regmap, cs43130->hpload_dc[HP_LEFT],
		       cs43130->dc_threshold);

exit:
	switch (cs43130->dev_id) {
	case CS43130_CHIP_ID:
		cs43130_hpload_proc(cs43130, hp_dis_cal_seq,
				    ARRAY_SIZE(hp_dis_cal_seq),
				    CS43130_HPLOAD_OFF_INT, ac_idx);
		break;
	case CS43131_CHIP_ID:
		cs43130_hpload_proc(cs43130, hp_dis_cal_seq2,
				    ARRAY_SIZE(hp_dis_cal_seq2),
				    CS43130_HPLOAD_OFF_INT, ac_idx);
	}

	regmap_multi_reg_write(cs43130->regmap, hp_cln_seq,
			       ARRAY_SIZE(hp_cln_seq));

	mutex_lock(&cs43130->clk_mutex);
	cs43130->clk_req--;
	/* clk not in use */
	if (!cs43130->clk_req)
		cs43130_change_clksrc(codec, CS43130_MCLK_SRC_RCO);
	mutex_unlock(&cs43130->clk_mutex);
}

static irqreturn_t cs43130_irq_thread(int irq, void *data)
{
	struct cs43130_private *cs43130 = (struct cs43130_private *)data;
	struct snd_soc_codec *codec = cs43130->codec;
	unsigned int stickies[CS43130_NUM_INT];
	unsigned int irq_occurrence = 0;
	unsigned int masks[CS43130_NUM_INT];
	int i, j;

	for (i = 0; i < ARRAY_SIZE(stickies); i++) {
		regmap_read(cs43130->regmap, CS43130_INT_STATUS_1 + i,
			    &stickies[i]);
		regmap_read(cs43130->regmap, CS43130_INT_MASK_1 + i,
			    &masks[i]);
	}

	for (i = 0; i < ARRAY_SIZE(stickies); i++) {
		stickies[i] = stickies[i] & (~masks[i]);
		for (j = 0; j < 8; j++)
			irq_occurrence += (stickies[i] >> j) & 1;
	}
	dev_dbg(codec->dev, "number of interrupts occurred (%u)\n",
		irq_occurrence);

	if (!irq_occurrence)
		return IRQ_NONE;

	if (stickies[0] & CS43130_XTAL_RDY_INT) {
		complete(&cs43130->xtal_rdy);
		return IRQ_HANDLED;
	}

	if (stickies[0] & CS43130_PLL_RDY_INT) {
		complete(&cs43130->pll_rdy);
		return IRQ_HANDLED;
	}

	if (stickies[3] & CS43130_HPLOAD_NO_DC_INT) {
		cs43130->hpload_stat = stickies[3];
		dev_err(codec->dev,
			"DC load has not completed before AC load (%x)\n",
			cs43130->hpload_stat);
		complete(&cs43130->hpload_evt);
		return IRQ_HANDLED;
	}

	if (stickies[3] & CS43130_HPLOAD_UNPLUG_INT) {
		cs43130->hpload_stat = stickies[3];
		dev_err(codec->dev, "HP unplugged during measurement (%x)\n",
			cs43130->hpload_stat);
		complete(&cs43130->hpload_evt);
		return IRQ_HANDLED;
	}

	if (stickies[3] & CS43130_HPLOAD_OOR_INT) {
		cs43130->hpload_stat = stickies[3];
		dev_err(codec->dev, "HP load out of range (%x)\n",
			cs43130->hpload_stat);
		complete(&cs43130->hpload_evt);
		return IRQ_HANDLED;
	}

	if (stickies[3] & CS43130_HPLOAD_AC_INT) {
		cs43130->hpload_stat = stickies[3];
		dev_dbg(codec->dev, "HP AC load measurement done (%x)\n",
			cs43130->hpload_stat);
		complete(&cs43130->hpload_evt);
		return IRQ_HANDLED;
	}

	if (stickies[3] & CS43130_HPLOAD_DC_INT) {
		cs43130->hpload_stat = stickies[3];
		dev_dbg(codec->dev, "HP DC load measurement done (%x)\n",
			cs43130->hpload_stat);
		complete(&cs43130->hpload_evt);
		return IRQ_HANDLED;
	}

	if (stickies[3] & CS43130_HPLOAD_ON_INT) {
		cs43130->hpload_stat = stickies[3];
		dev_dbg(codec->dev, "HP load state machine on done (%x)\n",
			cs43130->hpload_stat);
		complete(&cs43130->hpload_evt);
		return IRQ_HANDLED;
	}

	if (stickies[3] & CS43130_HPLOAD_OFF_INT) {
		cs43130->hpload_stat = stickies[3];
		dev_dbg(codec->dev, "HP load state machine off done (%x)\n",
			cs43130->hpload_stat);
		complete(&cs43130->hpload_evt);
		return IRQ_HANDLED;
	}

	if (stickies[0] & CS43130_XTAL_ERR_INT) {
		dev_err(codec->dev, "Crystal err: clock is not running\n");
		return IRQ_HANDLED;
	}

	if (stickies[0] & CS43130_HP_UNPLUG_INT) {
		dev_dbg(codec->dev, "HP unplugged\n");
		cs43130->hpload_done = false;
		snd_soc_jack_report(&cs43130->jack, 0, CS43130_JACK_MASK);
		return IRQ_HANDLED;
	}

	if (stickies[0] & CS43130_HP_PLUG_INT) {
		if (cs43130->dc_meas && !cs43130->hpload_done &&
		    !work_busy(&cs43130->work)) {
			dev_dbg(codec->dev, "HP load queue work\n");
			queue_work(cs43130->wq, &cs43130->work);
		}

		snd_soc_jack_report(&cs43130->jack, SND_JACK_MECHANICAL,
				    CS43130_JACK_MASK);
		return IRQ_HANDLED;
	}

	return IRQ_NONE;
}

static int cs43130_probe(struct snd_soc_codec *codec)
{
	int ret;
	struct cs43130_private *cs43130 = snd_soc_codec_get_drvdata(codec);
	struct snd_soc_card *card = codec->component.card;
	unsigned int reg;

	cs43130->codec = codec;

	if (cs43130->xtal_ibias != CS43130_XTAL_UNUSED) {
		regmap_update_bits(cs43130->regmap, CS43130_CRYSTAL_SET,
				   CS43130_XTAL_IBIAS_MASK,
				   cs43130->xtal_ibias);
		regmap_update_bits(cs43130->regmap, CS43130_INT_MASK_1,
				   CS43130_XTAL_ERR_INT, 0);
	}

	ret = snd_soc_card_jack_new(card, "Headphone", CS43130_JACK_MASK,
				    &cs43130->jack, NULL, 0);
	if (ret < 0) {
		dev_err(codec->dev, "Cannot create jack\n");
		return ret;
	}

	cs43130->hpload_done = false;
	if (cs43130->dc_meas) {
		ret = device_create_file(codec->dev, &dev_attr_hpload_dc_l);
		if (ret < 0)
			return ret;

		ret = device_create_file(codec->dev, &dev_attr_hpload_dc_r);
		if (ret < 0)
			return ret;

		ret = device_create_file(codec->dev, &dev_attr_hpload_ac_l);
		if (ret < 0)
			return ret;

		ret = device_create_file(codec->dev, &dev_attr_hpload_ac_r);
		if (ret < 0)
			return ret;

		cs43130->wq = create_singlethread_workqueue("cs43130_hp");
		INIT_WORK(&cs43130->work, cs43130_imp_meas);
	}

	regmap_read(cs43130->regmap, CS43130_INT_STATUS_1, &reg);
	regmap_read(cs43130->regmap, CS43130_HP_STATUS, &reg);
	regmap_update_bits(cs43130->regmap, CS43130_INT_MASK_1,
			   CS43130_HP_PLUG_INT | CS43130_HP_UNPLUG_INT, 0);
	regmap_update_bits(cs43130->regmap, CS43130_HP_DETECT,
			   CS43130_HP_DETECT_CTRL_MASK, 0);
	regmap_update_bits(cs43130->regmap, CS43130_HP_DETECT,
			   CS43130_HP_DETECT_CTRL_MASK,
			   CS43130_HP_DETECT_CTRL_MASK);

	return 0;
}

static struct snd_soc_codec_driver soc_codec_dev_cs43130 = {
	.probe			= cs43130_probe,
	.component_driver = {
		.controls		= cs43130_snd_controls,
		.num_controls		= ARRAY_SIZE(cs43130_snd_controls),
	},
	.set_sysclk		= cs43130_codec_set_sysclk,
	.set_pll		= cs43130_set_pll,
};

static const struct regmap_config cs43130_regmap = {
	.reg_bits		= 24,
	.pad_bits		= 8,
	.val_bits		= 8,

	.max_register		= CS43130_LASTREG,
	.reg_defaults		= cs43130_reg_defaults,
	.num_reg_defaults	= ARRAY_SIZE(cs43130_reg_defaults),
	.readable_reg		= cs43130_readable_register,
	.precious_reg		= cs43130_precious_register,
	.volatile_reg		= cs43130_volatile_register,
	.cache_type		= REGCACHE_RBTREE,
	.use_single_rw		= true, /* needed for regcache_sync */
};

static u16 const cs43130_dc_threshold[CS43130_DC_THRESHOLD] = {
	50,
	120,
};

static int cs43130_handle_device_data(struct i2c_client *i2c_client,
				      struct cs43130_private *cs43130)
{
	struct device_node *np = i2c_client->dev.of_node;
	unsigned int val;
	int i;

	if (of_property_read_u32(np, "cirrus,xtal-ibias", &val) < 0) {
		/* Crystal is unused. System clock is used for external MCLK */
		cs43130->xtal_ibias = CS43130_XTAL_UNUSED;
		return 0;
	}

	switch (val) {
	case 1:
		cs43130->xtal_ibias = CS43130_XTAL_IBIAS_7_5UA;
		break;
	case 2:
		cs43130->xtal_ibias = CS43130_XTAL_IBIAS_12_5UA;
		break;
	case 3:
		cs43130->xtal_ibias = CS43130_XTAL_IBIAS_15UA;
		break;
	default:
		dev_err(&i2c_client->dev,
			"Invalid cirrus,xtal-ibias value: %d\n", val);
		return -EINVAL;
	}

	cs43130->dc_meas = of_property_read_bool(np, "cirrus,dc-measure");
	cs43130->ac_meas = of_property_read_bool(np, "cirrus,ac-measure");

	if (of_property_read_u16_array(np, "cirrus,ac-freq", cs43130->ac_freq,
					CS43130_AC_FREQ) < 0) {
		for (i = 0; i < CS43130_AC_FREQ; i++)
			cs43130->ac_freq[i] = cs43130_ac_freq[i];
	}

	if (of_property_read_u16_array(np, "cirrus,dc-threshold",
				       cs43130->dc_threshold,
				       CS43130_DC_THRESHOLD) < 0) {
		for (i = 0; i < CS43130_DC_THRESHOLD; i++)
			cs43130->dc_threshold[i] = cs43130_dc_threshold[i];
	}

	return 0;
}

static int cs43130_i2c_probe(struct i2c_client *client,
			     const struct i2c_device_id *id)
{
	struct cs43130_private *cs43130;
	int ret;
	unsigned int devid = 0;
	unsigned int reg;
	int i;

	cs43130 = devm_kzalloc(&client->dev, sizeof(*cs43130), GFP_KERNEL);
	if (!cs43130)
		return -ENOMEM;

	i2c_set_clientdata(client, cs43130);

	cs43130->regmap = devm_regmap_init_i2c(client, &cs43130_regmap);
	if (IS_ERR(cs43130->regmap)) {
		ret = PTR_ERR(cs43130->regmap);
		return ret;
	}

	if (client->dev.of_node) {
		ret = cs43130_handle_device_data(client, cs43130);
		if (ret != 0)
			return ret;
	}
	for (i = 0; i < ARRAY_SIZE(cs43130->supplies); i++)
		cs43130->supplies[i].supply = cs43130_supply_names[i];

	ret = devm_regulator_bulk_get(&client->dev,
				      ARRAY_SIZE(cs43130->supplies),
				      cs43130->supplies);
	if (ret != 0) {
		dev_err(&client->dev, "Failed to request supplies: %d\n", ret);
		return ret;
	}
	ret = regulator_bulk_enable(ARRAY_SIZE(cs43130->supplies),
				    cs43130->supplies);
	if (ret != 0) {
		dev_err(&client->dev, "Failed to enable supplies: %d\n", ret);
		return ret;
	}

	cs43130->reset_gpio = devm_gpiod_get_optional(&client->dev,
						      "reset", GPIOD_OUT_LOW);
	if (IS_ERR(cs43130->reset_gpio))
		return PTR_ERR(cs43130->reset_gpio);

	gpiod_set_value_cansleep(cs43130->reset_gpio, 1);

	usleep_range(2000, 2050);

	ret = regmap_read(cs43130->regmap, CS43130_DEVID_AB, &reg);

	devid = (reg & 0xFF) << 12;
	ret = regmap_read(cs43130->regmap, CS43130_DEVID_CD, &reg);
	devid |= (reg & 0xFF) << 4;
	ret = regmap_read(cs43130->regmap, CS43130_DEVID_E, &reg);
	devid |= (reg & 0xF0) >> 4;

	switch (devid) {
	case CS43130_CHIP_ID:
	case CS4399_CHIP_ID:
	case CS43131_CHIP_ID:
	case CS43198_CHIP_ID:
		break;
	default:
		dev_err(&client->dev,
			"CS43130 Device ID %X. Expected ID %X, %X, %X or %X\n",
			devid, CS43130_CHIP_ID, CS4399_CHIP_ID,
			CS43131_CHIP_ID, CS43198_CHIP_ID);
		ret = -ENODEV;
		goto err;
	}

	cs43130->dev_id = devid;
	ret = regmap_read(cs43130->regmap, CS43130_REV_ID, &reg);
	if (ret < 0) {
		dev_err(&client->dev, "Get Revision ID failed\n");
		goto err;
	}

	dev_info(&client->dev,
		 "Cirrus Logic CS43130 (%x), Revision: %02X\n", devid,
		 reg & 0xFF);

	mutex_init(&cs43130->clk_mutex);

	init_completion(&cs43130->xtal_rdy);
	init_completion(&cs43130->pll_rdy);
	init_completion(&cs43130->hpload_evt);

	ret = devm_request_threaded_irq(&client->dev, client->irq,
					NULL, cs43130_irq_thread,
					IRQF_ONESHOT | IRQF_TRIGGER_LOW,
					"cs43130", cs43130);
	if (ret != 0) {
		dev_err(&client->dev, "Failed to request IRQ: %d\n", ret);
		return ret;
	}

	cs43130->mclk_int_src = CS43130_MCLK_SRC_RCO;

	pm_runtime_set_autosuspend_delay(&client->dev, 100);
	pm_runtime_use_autosuspend(&client->dev);
	pm_runtime_set_active(&client->dev);
	pm_runtime_enable(&client->dev);

	switch (cs43130->dev_id) {
	case CS43130_CHIP_ID:
	case CS43131_CHIP_ID:
		memcpy(all_hp_widgets, digital_hp_widgets,
		       sizeof(digital_hp_widgets));
		memcpy(all_hp_widgets + ARRAY_SIZE(digital_hp_widgets),
		       analog_hp_widgets, sizeof(analog_hp_widgets));
		memcpy(all_hp_routes, digital_hp_routes,
		       sizeof(digital_hp_routes));
		memcpy(all_hp_routes + ARRAY_SIZE(digital_hp_routes),
		       analog_hp_routes, sizeof(analog_hp_routes));

		soc_codec_dev_cs43130.component_driver.dapm_widgets =
			all_hp_widgets;
		soc_codec_dev_cs43130.component_driver.num_dapm_widgets =
			ARRAY_SIZE(all_hp_widgets);
		soc_codec_dev_cs43130.component_driver.dapm_routes =
			all_hp_routes;
		soc_codec_dev_cs43130.component_driver.num_dapm_routes =
			ARRAY_SIZE(all_hp_routes);
		break;
	case CS43198_CHIP_ID:
	case CS4399_CHIP_ID:
		soc_codec_dev_cs43130.component_driver.dapm_widgets =
			digital_hp_widgets;
		soc_codec_dev_cs43130.component_driver.num_dapm_widgets =
			ARRAY_SIZE(digital_hp_widgets);
		soc_codec_dev_cs43130.component_driver.dapm_routes =
			digital_hp_routes;
		soc_codec_dev_cs43130.component_driver.num_dapm_routes =
			ARRAY_SIZE(digital_hp_routes);
	}

	ret = snd_soc_register_codec(&client->dev, &soc_codec_dev_cs43130,
				     cs43130_dai, ARRAY_SIZE(cs43130_dai));
	if (ret < 0) {
		dev_err(&client->dev,
			"snd_soc_register_codec failed with ret = %d\n", ret);
		goto err;
	}

	regmap_update_bits(cs43130->regmap, CS43130_PAD_INT_CFG,
			   CS43130_ASP_3ST_MASK, 0);
	regmap_update_bits(cs43130->regmap, CS43130_PAD_INT_CFG,
			   CS43130_XSP_3ST_MASK, 0);

	return 0;
err:
	return ret;
}

static int cs43130_i2c_remove(struct i2c_client *client)
{
	struct cs43130_private *cs43130 = i2c_get_clientdata(client);

	if (cs43130->xtal_ibias != CS43130_XTAL_UNUSED)
		regmap_update_bits(cs43130->regmap, CS43130_INT_MASK_1,
				   CS43130_XTAL_ERR_INT,
				   1 << CS43130_XTAL_ERR_INT_SHIFT);

	regmap_update_bits(cs43130->regmap, CS43130_INT_MASK_1,
			   CS43130_HP_PLUG_INT | CS43130_HP_UNPLUG_INT,
			   CS43130_HP_PLUG_INT | CS43130_HP_UNPLUG_INT);

	if (cs43130->dc_meas) {
		cancel_work_sync(&cs43130->work);
		flush_workqueue(cs43130->wq);

		device_remove_file(&client->dev, &dev_attr_hpload_dc_l);
		device_remove_file(&client->dev, &dev_attr_hpload_dc_r);
		device_remove_file(&client->dev, &dev_attr_hpload_ac_l);
		device_remove_file(&client->dev, &dev_attr_hpload_ac_r);
	}

	if (cs43130->reset_gpio)
		gpiod_set_value_cansleep(cs43130->reset_gpio, 0);

	pm_runtime_disable(&client->dev);
	regulator_bulk_disable(CS43130_NUM_SUPPLIES, cs43130->supplies);

	snd_soc_unregister_codec(&client->dev);

	return 0;
}

static int __maybe_unused cs43130_runtime_suspend(struct device *dev)
{
	struct cs43130_private *cs43130 = dev_get_drvdata(dev);

	if (cs43130->xtal_ibias != CS43130_XTAL_UNUSED)
		regmap_update_bits(cs43130->regmap, CS43130_INT_MASK_1,
				   CS43130_XTAL_ERR_INT,
				   1 << CS43130_XTAL_ERR_INT_SHIFT);

	regcache_cache_only(cs43130->regmap, true);
	regcache_mark_dirty(cs43130->regmap);

	gpiod_set_value_cansleep(cs43130->reset_gpio, 0);

	regulator_bulk_disable(CS43130_NUM_SUPPLIES, cs43130->supplies);

	return 0;
}

static int __maybe_unused cs43130_runtime_resume(struct device *dev)
{
	struct cs43130_private *cs43130 = dev_get_drvdata(dev);
	int ret;

	ret = regulator_bulk_enable(CS43130_NUM_SUPPLIES, cs43130->supplies);
	if (ret != 0) {
		dev_err(dev, "Failed to enable supplies: %d\n", ret);
		return ret;
	}

	regcache_cache_only(cs43130->regmap, false);

	gpiod_set_value_cansleep(cs43130->reset_gpio, 1);

	usleep_range(2000, 2050);

	ret = regcache_sync(cs43130->regmap);
	if (ret != 0) {
		dev_err(dev, "Failed to restore register cache\n");
		goto err;
	}

	if (cs43130->xtal_ibias != CS43130_XTAL_UNUSED)
		regmap_update_bits(cs43130->regmap, CS43130_INT_MASK_1,
				   CS43130_XTAL_ERR_INT, 0);

	return 0;
err:
	regcache_cache_only(cs43130->regmap, true);
	regulator_bulk_disable(CS43130_NUM_SUPPLIES, cs43130->supplies);

	return ret;
}

static const struct dev_pm_ops cs43130_runtime_pm = {
	SET_RUNTIME_PM_OPS(cs43130_runtime_suspend, cs43130_runtime_resume,
			   NULL)
};

static const struct of_device_id cs43130_of_match[] = {
	{.compatible = "cirrus,cs43130",},
	{.compatible = "cirrus,cs4399",},
	{.compatible = "cirrus,cs43131",},
	{.compatible = "cirrus,cs43198",},
	{},
};

MODULE_DEVICE_TABLE(of, cs43130_of_match);

static const struct i2c_device_id cs43130_i2c_id[] = {
	{"cs43130", 0},
	{"cs4399", 0},
	{"cs43131", 0},
	{"cs43198", 0},
	{}
};

MODULE_DEVICE_TABLE(i2c, cs43130_i2c_id);

static struct i2c_driver cs43130_i2c_driver = {
	.driver = {
		.name		= "cs43130",
		.of_match_table	= cs43130_of_match,
		.pm             = &cs43130_runtime_pm,
	},
	.id_table	= cs43130_i2c_id,
	.probe		= cs43130_i2c_probe,
	.remove		= cs43130_i2c_remove,
};

module_i2c_driver(cs43130_i2c_driver);

MODULE_AUTHOR("Li Xu <li.xu@cirrus.com>");
MODULE_DESCRIPTION("Cirrus Logic CS43130 ALSA SoC Codec Driver");
MODULE_LICENSE("GPL");