// SPDX-License-Identifier: GPL-2.0+
//
// DA7210 ALSA Soc codec driver
//
// Copyright (c) 2009 Dialog Semiconductor
// Written by David Chen <Dajun.chen@diasemi.com>
//
// Copyright (C) 2009 Renesas Solutions Corp.
// Cleanups by Kuninori Morimoto <morimoto.kuninori@renesas.com>
//
// Tested on SuperH Ecovec24 board with S16/S24 LE in 48KHz using I2S

#include <linux/delay.h>
#include <linux/i2c.h>
#include <linux/spi/spi.h>
#include <linux/regmap.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/initval.h>
#include <sound/tlv.h>

/* DA7210 register space */
#define DA7210_PAGE_CONTROL             0x00
#define DA7210_CONTROL                  0x01
#define DA7210_STATUS                   0x02
#define DA7210_STARTUP1                 0x03
#define DA7210_STARTUP2                 0x04
#define DA7210_STARTUP3                 0x05
#define DA7210_MIC_L                    0x07
#define DA7210_MIC_R                    0x08
#define DA7210_AUX1_L                   0x09
#define DA7210_AUX1_R                   0x0A
#define DA7210_AUX2                     0x0B
#define DA7210_IN_GAIN                  0x0C
#define DA7210_INMIX_L                  0x0D
#define DA7210_INMIX_R                  0x0E
#define DA7210_ADC_HPF                  0x0F
#define DA7210_ADC                      0x10
#define DA7210_ADC_EQ1_2                0X11
#define DA7210_ADC_EQ3_4                0x12
#define DA7210_ADC_EQ5                  0x13
#define DA7210_DAC_HPF                  0x14
#define DA7210_DAC_L                    0x15
#define DA7210_DAC_R                    0x16
#define DA7210_DAC_SEL                  0x17
#define DA7210_SOFTMUTE                 0x18
#define DA7210_DAC_EQ1_2                0x19
#define DA7210_DAC_EQ3_4                0x1A
#define DA7210_DAC_EQ5                  0x1B
#define DA7210_OUTMIX_L                 0x1C
#define DA7210_OUTMIX_R                 0x1D
#define DA7210_OUT1_L                   0x1E
#define DA7210_OUT1_R                   0x1F
#define DA7210_OUT2                     0x20
#define DA7210_HP_L_VOL                 0x21
#define DA7210_HP_R_VOL                 0x22
#define DA7210_HP_CFG                   0x23
#define DA7210_ZERO_CROSS               0x24
#define DA7210_DAI_SRC_SEL              0x25
#define DA7210_DAI_CFG1                 0x26
#define DA7210_DAI_CFG3                 0x28
#define DA7210_PLL_DIV1                 0x29
#define DA7210_PLL_DIV2                 0x2A
#define DA7210_PLL_DIV3                 0x2B
#define DA7210_PLL                      0x2C
#define DA7210_ALC_MAX                  0x83
#define DA7210_ALC_MIN                  0x84
#define DA7210_ALC_NOIS                 0x85
#define DA7210_ALC_ATT                  0x86
#define DA7210_ALC_REL                  0x87
#define DA7210_ALC_DEL                  0x88
#define DA7210_A_HID_UNLOCK             0x8A
#define DA7210_A_TEST_UNLOCK            0x8B
#define DA7210_A_PLL1                   0x90
#define DA7210_A_CP_MODE                0xA7

/* STARTUP1 bit fields */
#define DA7210_SC_MST_EN                (1 << 0)

/* MIC_L bit fields */
#define DA7210_MICBIAS_EN               (1 << 6)
#define DA7210_MIC_L_EN                 (1 << 7)

/* MIC_R bit fields */
#define DA7210_MIC_R_EN                 (1 << 7)

/* INMIX_L bit fields */
#define DA7210_IN_L_EN                  (1 << 7)

/* INMIX_R bit fields */
#define DA7210_IN_R_EN                  (1 << 7)

/* ADC bit fields */
#define DA7210_ADC_ALC_EN               (1 << 0)
#define DA7210_ADC_L_EN                 (1 << 3)
#define DA7210_ADC_R_EN                 (1 << 7)

/* DAC/ADC HPF fields */
#define DA7210_VOICE_F0_MASK            (0x7 << 4)
#define DA7210_VOICE_F0_25              (1 << 4)
#define DA7210_VOICE_EN                 (1 << 7)

/* DAC_SEL bit fields */
#define DA7210_DAC_L_SRC_DAI_L          (4 << 0)
#define DA7210_DAC_L_EN                 (1 << 3)
#define DA7210_DAC_R_SRC_DAI_R          (5 << 4)
#define DA7210_DAC_R_EN                 (1 << 7)

/* OUTMIX_L bit fields */
#define DA7210_OUT_L_EN                 (1 << 7)

/* OUTMIX_R bit fields */
#define DA7210_OUT_R_EN                 (1 << 7)

/* HP_CFG bit fields */
#define DA7210_HP_2CAP_MODE             (1 << 1)
#define DA7210_HP_SENSE_EN              (1 << 2)
#define DA7210_HP_L_EN                  (1 << 3)
#define DA7210_HP_MODE                  (1 << 6)
#define DA7210_HP_R_EN                  (1 << 7)

/* DAI_SRC_SEL bit fields */
#define DA7210_DAI_OUT_L_SRC            (6 << 0)
#define DA7210_DAI_OUT_R_SRC            (7 << 4)

/* DAI_CFG1 bit fields */
#define DA7210_DAI_WORD_S16_LE          (0 << 0)
#define DA7210_DAI_WORD_S20_3LE         (1 << 0)
#define DA7210_DAI_WORD_S24_LE          (2 << 0)
#define DA7210_DAI_WORD_S32_LE          (3 << 0)
#define DA7210_DAI_FLEN_64BIT           (1 << 2)
#define DA7210_DAI_MODE_SLAVE           (0 << 7)
#define DA7210_DAI_MODE_MASTER          (1 << 7)

/* DAI_CFG3 bit fields */
#define DA7210_DAI_FORMAT_I2SMODE       (0 << 0)
#define DA7210_DAI_FORMAT_LEFT_J        (1 << 0)
#define DA7210_DAI_FORMAT_RIGHT_J       (2 << 0)
#define DA7210_DAI_OE                   (1 << 3)
#define DA7210_DAI_EN                   (1 << 7)

/*PLL_DIV3 bit fields */
#define DA7210_PLL_DIV_L_MASK           (0xF << 0)
#define DA7210_MCLK_RANGE_10_20_MHZ     (1 << 4)
#define DA7210_PLL_BYP                  (1 << 6)

/* PLL bit fields */
#define DA7210_PLL_FS_MASK              (0xF << 0)
#define DA7210_PLL_FS_8000              (0x1 << 0)
#define DA7210_PLL_FS_11025             (0x2 << 0)
#define DA7210_PLL_FS_12000             (0x3 << 0)
#define DA7210_PLL_FS_16000             (0x5 << 0)
#define DA7210_PLL_FS_22050             (0x6 << 0)
#define DA7210_PLL_FS_24000             (0x7 << 0)
#define DA7210_PLL_FS_32000             (0x9 << 0)
#define DA7210_PLL_FS_44100             (0xA << 0)
#define DA7210_PLL_FS_48000             (0xB << 0)
#define DA7210_PLL_FS_88200             (0xE << 0)
#define DA7210_PLL_FS_96000             (0xF << 0)
#define DA7210_MCLK_DET_EN              (0x1 << 5)
#define DA7210_MCLK_SRM_EN              (0x1 << 6)
#define DA7210_PLL_EN                   (0x1 << 7)

/* SOFTMUTE bit fields */
#define DA7210_RAMP_EN                  (1 << 6)

/* CONTROL bit fields */
#define DA7210_REG_EN                   (1 << 0)
#define DA7210_BIAS_EN                  (1 << 2)
#define DA7210_NOISE_SUP_EN             (1 << 3)

/* IN_GAIN bit fields */
#define DA7210_INPGA_L_VOL              (0x0F << 0)
#define DA7210_INPGA_R_VOL              (0xF0 << 0)

/* ZERO_CROSS bit fields */
#define DA7210_AUX1_L_ZC                (1 << 0)
#define DA7210_AUX1_R_ZC                (1 << 1)
#define DA7210_HP_L_ZC                  (1 << 6)
#define DA7210_HP_R_ZC                  (1 << 7)

/* AUX1_L bit fields */
#define DA7210_AUX1_L_VOL               (0x3F << 0)
#define DA7210_AUX1_L_EN                (1 << 7)

/* AUX1_R bit fields */
#define DA7210_AUX1_R_VOL               (0x3F << 0)
#define DA7210_AUX1_R_EN                (1 << 7)

/* AUX2 bit fields */
#define DA7210_AUX2_EN                  (1 << 3)

/* Minimum INPGA and AUX1 volume to enable noise suppression */
#define DA7210_INPGA_MIN_VOL_NS         0x0A  /* 10.5dB */
#define DA7210_AUX1_MIN_VOL_NS          0x35  /* 6dB */

/* OUT1_L bit fields */
#define DA7210_OUT1_L_EN                (1 << 7)

/* OUT1_R bit fields */
#define DA7210_OUT1_R_EN                (1 << 7)

/* OUT2 bit fields */
#define DA7210_OUT2_OUTMIX_R            (1 << 5)
#define DA7210_OUT2_OUTMIX_L            (1 << 6)
#define DA7210_OUT2_EN                  (1 << 7)

struct pll_div {
        int fref;
        int fout;
        u8 div1;
        u8 div2;
        u8 div3;
        u8 mode;        /* 0 = slave, 1 = master */
};

/* PLL dividers table */
static const struct pll_div da7210_pll_div[] = {
        /* for MASTER mode, fs = 44.1Khz */
        { 12000000, 2822400, 0xE8, 0x6C, 0x2, 1},       /* MCLK=12Mhz */
        { 13000000, 2822400, 0xDF, 0x28, 0xC, 1},       /* MCLK=13Mhz */
        { 13500000, 2822400, 0xDB, 0x0A, 0xD, 1},       /* MCLK=13.5Mhz */
        { 14400000, 2822400, 0xD4, 0x5A, 0x2, 1},       /* MCLK=14.4Mhz */
        { 19200000, 2822400, 0xBB, 0x43, 0x9, 1},       /* MCLK=19.2Mhz */
        { 19680000, 2822400, 0xB9, 0x6D, 0xA, 1},       /* MCLK=19.68Mhz */
        { 19800000, 2822400, 0xB8, 0xFB, 0xB, 1},       /* MCLK=19.8Mhz */
        /* for MASTER mode, fs = 48Khz */
        { 12000000, 3072000, 0xF3, 0x12, 0x7, 1},       /* MCLK=12Mhz */
        { 13000000, 3072000, 0xE8, 0xFD, 0x5, 1},       /* MCLK=13Mhz */
        { 13500000, 3072000, 0xE4, 0x82, 0x3, 1},       /* MCLK=13.5Mhz */
        { 14400000, 3072000, 0xDD, 0x3A, 0x0, 1},       /* MCLK=14.4Mhz */
        { 19200000, 3072000, 0xC1, 0xEB, 0x8, 1},       /* MCLK=19.2Mhz */
        { 19680000, 3072000, 0xBF, 0xEC, 0x0, 1},       /* MCLK=19.68Mhz */
        { 19800000, 3072000, 0xBF, 0x70, 0x0, 1},       /* MCLK=19.8Mhz */
        /* for SLAVE mode with SRM */
        { 12000000, 2822400, 0xED, 0xBF, 0x5, 0},       /* MCLK=12Mhz */
        { 13000000, 2822400, 0xE4, 0x13, 0x0, 0},       /* MCLK=13Mhz */
        { 13500000, 2822400, 0xDF, 0xC6, 0x8, 0},       /* MCLK=13.5Mhz */
        { 14400000, 2822400, 0xD8, 0xCA, 0x1, 0},       /* MCLK=14.4Mhz */
        { 19200000, 2822400, 0xBE, 0x97, 0x9, 0},       /* MCLK=19.2Mhz */
        { 19680000, 2822400, 0xBC, 0xAC, 0xD, 0},       /* MCLK=19.68Mhz */
        { 19800000, 2822400, 0xBC, 0x35, 0xE, 0},       /* MCLK=19.8Mhz  */
};

enum clk_src {
        DA7210_CLKSRC_MCLK
};

#define DA7210_VERSION "0.0.1"

/*
 * Playback Volume
 *
 * max          : 0x3F (+15.0 dB)
 *                 (1.5 dB step)
 * min          : 0x11 (-54.0 dB)
 * mute         : 0x10
 * reserved     : 0x00 - 0x0F
 *
 * Reserved area are considered as "mute".
 */
static const DECLARE_TLV_DB_RANGE(hp_out_tlv,
        0x0, 0x10, TLV_DB_SCALE_ITEM(TLV_DB_GAIN_MUTE, 0, 1),
        /* -54 dB to +15 dB */
        0x11, 0x3f, TLV_DB_SCALE_ITEM(-5400, 150, 0)
);

static const DECLARE_TLV_DB_RANGE(lineout_vol_tlv,
        0x0, 0x10, TLV_DB_SCALE_ITEM(TLV_DB_GAIN_MUTE, 0, 1),
        /* -54dB to 15dB */
        0x11, 0x3f, TLV_DB_SCALE_ITEM(-5400, 150, 0)
);

static const DECLARE_TLV_DB_RANGE(mono_vol_tlv,
        0x0, 0x2, TLV_DB_SCALE_ITEM(-1800, 0, 1),
        /* -18dB to 6dB */
        0x3, 0x7, TLV_DB_SCALE_ITEM(-1800, 600, 0)
);

static const DECLARE_TLV_DB_RANGE(aux1_vol_tlv,
        0x0, 0x10, TLV_DB_SCALE_ITEM(TLV_DB_GAIN_MUTE, 0, 1),
        /* -48dB to 21dB */
        0x11, 0x3f, TLV_DB_SCALE_ITEM(-4800, 150, 0)
);

static const DECLARE_TLV_DB_SCALE(eq_gain_tlv, -1050, 150, 0);
static const DECLARE_TLV_DB_SCALE(adc_eq_master_gain_tlv, -1800, 600, 1);
static const DECLARE_TLV_DB_SCALE(dac_gain_tlv, -7725, 75, 0);
static const DECLARE_TLV_DB_SCALE(mic_vol_tlv, -600, 600, 0);
static const DECLARE_TLV_DB_SCALE(aux2_vol_tlv, -600, 600, 0);
static const DECLARE_TLV_DB_SCALE(inpga_gain_tlv, -450, 150, 0);

/* ADC and DAC high pass filter f0 value */
static const char * const da7210_hpf_cutoff_txt[] = {
        "Fs/8192*pi", "Fs/4096*pi", "Fs/2048*pi", "Fs/1024*pi"
};

static SOC_ENUM_SINGLE_DECL(da7210_dac_hpf_cutoff,
                            DA7210_DAC_HPF, 0, da7210_hpf_cutoff_txt);

static SOC_ENUM_SINGLE_DECL(da7210_adc_hpf_cutoff,
                            DA7210_ADC_HPF, 0, da7210_hpf_cutoff_txt);

/* ADC and DAC voice (8kHz) high pass cutoff value */
static const char * const da7210_vf_cutoff_txt[] = {
        "2.5Hz", "25Hz", "50Hz", "100Hz", "150Hz", "200Hz", "300Hz", "400Hz"
};

static SOC_ENUM_SINGLE_DECL(da7210_dac_vf_cutoff,
                            DA7210_DAC_HPF, 4, da7210_vf_cutoff_txt);

static SOC_ENUM_SINGLE_DECL(da7210_adc_vf_cutoff,
                            DA7210_ADC_HPF, 4, da7210_vf_cutoff_txt);

static const char *da7210_hp_mode_txt[] = {
        "Class H", "Class G"
};

static SOC_ENUM_SINGLE_DECL(da7210_hp_mode_sel,
                            DA7210_HP_CFG, 0, da7210_hp_mode_txt);

/* ALC can be enabled only if noise suppression is disabled */
static int da7210_put_alc_sw(struct snd_kcontrol *kcontrol,
                             struct snd_ctl_elem_value *ucontrol)
{
        struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);

        if (ucontrol->value.integer.value[0]) {
                /* Check if noise suppression is enabled */
                if (snd_soc_component_read(component, DA7210_CONTROL) & DA7210_NOISE_SUP_EN) {
                        dev_dbg(component->dev,
                                "Disable noise suppression to enable ALC\n");
                        return -EINVAL;
                }
        }
        /* If all conditions are met or we are actually disabling ALC */
        return snd_soc_put_volsw(kcontrol, ucontrol);
}

/* Noise suppression can be enabled only if following conditions are met
 *  ALC disabled
 *  ZC enabled for HP and AUX1 PGA
 *  INPGA_L_VOL and INPGA_R_VOL >= 10.5 dB
 *  AUX1_L_VOL and AUX1_R_VOL >= 6 dB
 */
static int da7210_put_noise_sup_sw(struct snd_kcontrol *kcontrol,
                                   struct snd_ctl_elem_value *ucontrol)
{
        struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
        u8 val;

        if (ucontrol->value.integer.value[0]) {
                /* Check if ALC is enabled */
                if (snd_soc_component_read(component, DA7210_ADC) & DA7210_ADC_ALC_EN)
                        goto err;

                /* Check ZC for HP and AUX1 PGA */
                if ((snd_soc_component_read(component, DA7210_ZERO_CROSS) &
                        (DA7210_AUX1_L_ZC | DA7210_AUX1_R_ZC | DA7210_HP_L_ZC |
                        DA7210_HP_R_ZC)) != (DA7210_AUX1_L_ZC |
                        DA7210_AUX1_R_ZC | DA7210_HP_L_ZC | DA7210_HP_R_ZC))
                        goto err;

                /* Check INPGA_L_VOL and INPGA_R_VOL */
                val = snd_soc_component_read(component, DA7210_IN_GAIN);
                if (((val & DA7210_INPGA_L_VOL) < DA7210_INPGA_MIN_VOL_NS) ||
                        (((val & DA7210_INPGA_R_VOL) >> 4) <
                        DA7210_INPGA_MIN_VOL_NS))
                        goto err;

                /* Check AUX1_L_VOL and AUX1_R_VOL */
                if (((snd_soc_component_read(component, DA7210_AUX1_L) & DA7210_AUX1_L_VOL) <
                    DA7210_AUX1_MIN_VOL_NS) ||
                    ((snd_soc_component_read(component, DA7210_AUX1_R) & DA7210_AUX1_R_VOL) <
                    DA7210_AUX1_MIN_VOL_NS))
                        goto err;
        }
        /* If all conditions are met or we are actually disabling Noise sup */
        return snd_soc_put_volsw(kcontrol, ucontrol);

err:
        return -EINVAL;
}

static const struct snd_kcontrol_new da7210_snd_controls[] = {

        SOC_DOUBLE_R_TLV("HeadPhone Playback Volume",
                         DA7210_HP_L_VOL, DA7210_HP_R_VOL,
                         0, 0x3F, 0, hp_out_tlv),
        SOC_DOUBLE_R_TLV("Digital Playback Volume",
                         DA7210_DAC_L, DA7210_DAC_R,
                         0, 0x77, 1, dac_gain_tlv),
        SOC_DOUBLE_R_TLV("Lineout Playback Volume",
                         DA7210_OUT1_L, DA7210_OUT1_R,
                         0, 0x3f, 0, lineout_vol_tlv),
        SOC_SINGLE_TLV("Mono Playback Volume", DA7210_OUT2, 0, 0x7, 0,
                       mono_vol_tlv),

        SOC_DOUBLE_R_TLV("Mic Capture Volume",
                         DA7210_MIC_L, DA7210_MIC_R,
                         0, 0x5, 0, mic_vol_tlv),
        SOC_DOUBLE_R_TLV("Aux1 Capture Volume",
                         DA7210_AUX1_L, DA7210_AUX1_R,
                         0, 0x3f, 0, aux1_vol_tlv),
        SOC_SINGLE_TLV("Aux2 Capture Volume", DA7210_AUX2, 0, 0x3, 0,
                       aux2_vol_tlv),
        SOC_DOUBLE_TLV("In PGA Capture Volume", DA7210_IN_GAIN, 0, 4, 0xF, 0,
                       inpga_gain_tlv),

        /* DAC Equalizer  controls */
        SOC_SINGLE("DAC EQ Switch", DA7210_DAC_EQ5, 7, 1, 0),
        SOC_SINGLE_TLV("DAC EQ1 Volume", DA7210_DAC_EQ1_2, 0, 0xf, 1,
                       eq_gain_tlv),
        SOC_SINGLE_TLV("DAC EQ2 Volume", DA7210_DAC_EQ1_2, 4, 0xf, 1,
                       eq_gain_tlv),
        SOC_SINGLE_TLV("DAC EQ3 Volume", DA7210_DAC_EQ3_4, 0, 0xf, 1,
                       eq_gain_tlv),
        SOC_SINGLE_TLV("DAC EQ4 Volume", DA7210_DAC_EQ3_4, 4, 0xf, 1,
                       eq_gain_tlv),
        SOC_SINGLE_TLV("DAC EQ5 Volume", DA7210_DAC_EQ5, 0, 0xf, 1,
                       eq_gain_tlv),

        /* ADC Equalizer  controls */
        SOC_SINGLE("ADC EQ Switch", DA7210_ADC_EQ5, 7, 1, 0),
        SOC_SINGLE_TLV("ADC EQ Master Volume", DA7210_ADC_EQ5, 4, 0x3,
                       1, adc_eq_master_gain_tlv),
        SOC_SINGLE_TLV("ADC EQ1 Volume", DA7210_ADC_EQ1_2, 0, 0xf, 1,
                       eq_gain_tlv),
        SOC_SINGLE_TLV("ADC EQ2 Volume", DA7210_ADC_EQ1_2, 4, 0xf, 1,
                       eq_gain_tlv),
        SOC_SINGLE_TLV("ADC EQ3 Volume", DA7210_ADC_EQ3_4, 0, 0xf, 1,
                       eq_gain_tlv),
        SOC_SINGLE_TLV("ADC EQ4 Volume", DA7210_ADC_EQ3_4, 4, 0xf, 1,
                       eq_gain_tlv),
        SOC_SINGLE_TLV("ADC EQ5 Volume", DA7210_ADC_EQ5, 0, 0xf, 1,
                       eq_gain_tlv),

        SOC_SINGLE("DAC HPF Switch", DA7210_DAC_HPF, 3, 1, 0),
        SOC_ENUM("DAC HPF Cutoff", da7210_dac_hpf_cutoff),
        SOC_SINGLE("DAC Voice Mode Switch", DA7210_DAC_HPF, 7, 1, 0),
        SOC_ENUM("DAC Voice Cutoff", da7210_dac_vf_cutoff),

        SOC_SINGLE("ADC HPF Switch", DA7210_ADC_HPF, 3, 1, 0),
        SOC_ENUM("ADC HPF Cutoff", da7210_adc_hpf_cutoff),
        SOC_SINGLE("ADC Voice Mode Switch", DA7210_ADC_HPF, 7, 1, 0),
        SOC_ENUM("ADC Voice Cutoff", da7210_adc_vf_cutoff),

        /* Mute controls */
        SOC_DOUBLE_R("Mic Capture Switch", DA7210_MIC_L, DA7210_MIC_R, 3, 1, 0),
        SOC_SINGLE("Aux2 Capture Switch", DA7210_AUX2, 2, 1, 0),
        SOC_DOUBLE("ADC Capture Switch", DA7210_ADC, 2, 6, 1, 0),
        SOC_SINGLE("Digital Soft Mute Switch", DA7210_SOFTMUTE, 7, 1, 0),
        SOC_SINGLE("Digital Soft Mute Rate", DA7210_SOFTMUTE, 0, 0x7, 0),

        /* Zero cross controls */
        SOC_DOUBLE("Aux1 ZC Switch", DA7210_ZERO_CROSS, 0, 1, 1, 0),
        SOC_DOUBLE("In PGA ZC Switch", DA7210_ZERO_CROSS, 2, 3, 1, 0),
        SOC_DOUBLE("Lineout ZC Switch", DA7210_ZERO_CROSS, 4, 5, 1, 0),
        SOC_DOUBLE("Headphone ZC Switch", DA7210_ZERO_CROSS, 6, 7, 1, 0),

        SOC_ENUM("Headphone Class", da7210_hp_mode_sel),

        /* ALC controls */
        SOC_SINGLE_EXT("ALC Enable Switch", DA7210_ADC, 0, 1, 0,
                       snd_soc_get_volsw, da7210_put_alc_sw),
        SOC_SINGLE("ALC Capture Max Volume", DA7210_ALC_MAX, 0, 0x3F, 0),
        SOC_SINGLE("ALC Capture Min Volume", DA7210_ALC_MIN, 0, 0x3F, 0),
        SOC_SINGLE("ALC Capture Noise Volume", DA7210_ALC_NOIS, 0, 0x3F, 0),
        SOC_SINGLE("ALC Capture Attack Rate", DA7210_ALC_ATT, 0, 0xFF, 0),
        SOC_SINGLE("ALC Capture Release Rate", DA7210_ALC_REL, 0, 0xFF, 0),
        SOC_SINGLE("ALC Capture Release Delay", DA7210_ALC_DEL, 0, 0xFF, 0),

        SOC_SINGLE_EXT("Noise Suppression Enable Switch", DA7210_CONTROL, 3, 1,
                       0, snd_soc_get_volsw, da7210_put_noise_sup_sw),
};

/*
 * DAPM Controls
 *
 * Current DAPM implementation covers almost all codec components e.g. IOs,
 * mixers, PGAs,ADC and DAC.
 */
/* In Mixer Left */
static const struct snd_kcontrol_new da7210_dapm_inmixl_controls[] = {
        SOC_DAPM_SINGLE("Mic Left Switch", DA7210_INMIX_L, 0, 1, 0),
        SOC_DAPM_SINGLE("Mic Right Switch", DA7210_INMIX_L, 1, 1, 0),
        SOC_DAPM_SINGLE("Aux1 Left Switch", DA7210_INMIX_L, 2, 1, 0),
        SOC_DAPM_SINGLE("Aux2 Switch", DA7210_INMIX_L, 3, 1, 0),
        SOC_DAPM_SINGLE("Outmix Left Switch", DA7210_INMIX_L, 4, 1, 0),
};

/* In Mixer Right */
static const struct snd_kcontrol_new da7210_dapm_inmixr_controls[] = {
        SOC_DAPM_SINGLE("Mic Right Switch", DA7210_INMIX_R, 0, 1, 0),
        SOC_DAPM_SINGLE("Mic Left Switch", DA7210_INMIX_R, 1, 1, 0),
        SOC_DAPM_SINGLE("Aux1 Right Switch", DA7210_INMIX_R, 2, 1, 0),
        SOC_DAPM_SINGLE("Aux2 Switch", DA7210_INMIX_R, 3, 1, 0),
        SOC_DAPM_SINGLE("Outmix Right Switch", DA7210_INMIX_R, 4, 1, 0),
};

/* Out Mixer Left */
static const struct snd_kcontrol_new da7210_dapm_outmixl_controls[] = {
        SOC_DAPM_SINGLE("Aux1 Left Switch", DA7210_OUTMIX_L, 0, 1, 0),
        SOC_DAPM_SINGLE("Aux2 Switch", DA7210_OUTMIX_L, 1, 1, 0),
        SOC_DAPM_SINGLE("INPGA Left Switch", DA7210_OUTMIX_L, 2, 1, 0),
        SOC_DAPM_SINGLE("INPGA Right Switch", DA7210_OUTMIX_L, 3, 1, 0),
        SOC_DAPM_SINGLE("DAC Left Switch", DA7210_OUTMIX_L, 4, 1, 0),
};

/* Out Mixer Right */
static const struct snd_kcontrol_new da7210_dapm_outmixr_controls[] = {
        SOC_DAPM_SINGLE("Aux1 Right Switch", DA7210_OUTMIX_R, 0, 1, 0),
        SOC_DAPM_SINGLE("Aux2 Switch", DA7210_OUTMIX_R, 1, 1, 0),
        SOC_DAPM_SINGLE("INPGA Left Switch", DA7210_OUTMIX_R, 2, 1, 0),
        SOC_DAPM_SINGLE("INPGA Right Switch", DA7210_OUTMIX_R, 3, 1, 0),
        SOC_DAPM_SINGLE("DAC Right Switch", DA7210_OUTMIX_R, 4, 1, 0),
};

/* Mono Mixer */
static const struct snd_kcontrol_new da7210_dapm_monomix_controls[] = {
        SOC_DAPM_SINGLE("INPGA Right Switch", DA7210_OUT2, 3, 1, 0),
        SOC_DAPM_SINGLE("INPGA Left Switch", DA7210_OUT2, 4, 1, 0),
        SOC_DAPM_SINGLE("Outmix Right Switch", DA7210_OUT2, 5, 1, 0),
        SOC_DAPM_SINGLE("Outmix Left Switch", DA7210_OUT2, 6, 1, 0),
};

/* DAPM widgets */
static const struct snd_soc_dapm_widget da7210_dapm_widgets[] = {
        /* Input Side */
        /* Input Lines */
        SND_SOC_DAPM_INPUT("MICL"),
        SND_SOC_DAPM_INPUT("MICR"),
        SND_SOC_DAPM_INPUT("AUX1L"),
        SND_SOC_DAPM_INPUT("AUX1R"),
        SND_SOC_DAPM_INPUT("AUX2"),

        /* Input PGAs */
        SND_SOC_DAPM_PGA("Mic Left", DA7210_STARTUP3, 0, 1, NULL, 0),
        SND_SOC_DAPM_PGA("Mic Right", DA7210_STARTUP3, 1, 1, NULL, 0),
        SND_SOC_DAPM_PGA("Aux1 Left", DA7210_STARTUP3, 2, 1, NULL, 0),
        SND_SOC_DAPM_PGA("Aux1 Right", DA7210_STARTUP3, 3, 1, NULL, 0),
        SND_SOC_DAPM_PGA("Aux2 Mono", DA7210_STARTUP3, 4, 1, NULL, 0),

        SND_SOC_DAPM_PGA("INPGA Left", DA7210_INMIX_L, 7, 0, NULL, 0),
        SND_SOC_DAPM_PGA("INPGA Right", DA7210_INMIX_R, 7, 0, NULL, 0),

        /* MICBIAS */
        SND_SOC_DAPM_SUPPLY("Mic Bias", DA7210_MIC_L, 6, 0, NULL, 0),

        /* Input Mixers */
        SND_SOC_DAPM_MIXER("In Mixer Left", SND_SOC_NOPM, 0, 0,
                &da7210_dapm_inmixl_controls[0],
                ARRAY_SIZE(da7210_dapm_inmixl_controls)),

        SND_SOC_DAPM_MIXER("In Mixer Right", SND_SOC_NOPM, 0, 0,
                &da7210_dapm_inmixr_controls[0],
                ARRAY_SIZE(da7210_dapm_inmixr_controls)),

        /* ADCs */
        SND_SOC_DAPM_ADC("ADC Left", "Capture", DA7210_STARTUP3, 5, 1),
        SND_SOC_DAPM_ADC("ADC Right", "Capture", DA7210_STARTUP3, 6, 1),

        /* Output Side */
        /* DACs */
        SND_SOC_DAPM_DAC("DAC Left", "Playback", DA7210_STARTUP2, 5, 1),
        SND_SOC_DAPM_DAC("DAC Right", "Playback", DA7210_STARTUP2, 6, 1),

        /* Output Mixers */
        SND_SOC_DAPM_MIXER("Out Mixer Left", SND_SOC_NOPM, 0, 0,
                &da7210_dapm_outmixl_controls[0],
                ARRAY_SIZE(da7210_dapm_outmixl_controls)),

        SND_SOC_DAPM_MIXER("Out Mixer Right", SND_SOC_NOPM, 0, 0,
                &da7210_dapm_outmixr_controls[0],
                ARRAY_SIZE(da7210_dapm_outmixr_controls)),

        SND_SOC_DAPM_MIXER("Mono Mixer", SND_SOC_NOPM, 0, 0,
                &da7210_dapm_monomix_controls[0],
                ARRAY_SIZE(da7210_dapm_monomix_controls)),

        /* Output PGAs */
        SND_SOC_DAPM_PGA("OUTPGA Left Enable", DA7210_OUTMIX_L, 7, 0, NULL, 0),
        SND_SOC_DAPM_PGA("OUTPGA Right Enable", DA7210_OUTMIX_R, 7, 0, NULL, 0),

        SND_SOC_DAPM_PGA("Out1 Left", DA7210_STARTUP2, 0, 1, NULL, 0),
        SND_SOC_DAPM_PGA("Out1 Right", DA7210_STARTUP2, 1, 1, NULL, 0),
        SND_SOC_DAPM_PGA("Out2 Mono", DA7210_STARTUP2, 2, 1, NULL, 0),
        SND_SOC_DAPM_PGA("Headphone Left", DA7210_STARTUP2, 3, 1, NULL, 0),
        SND_SOC_DAPM_PGA("Headphone Right", DA7210_STARTUP2, 4, 1, NULL, 0),

        /* Output Lines */
        SND_SOC_DAPM_OUTPUT("OUT1L"),
        SND_SOC_DAPM_OUTPUT("OUT1R"),
        SND_SOC_DAPM_OUTPUT("HPL"),
        SND_SOC_DAPM_OUTPUT("HPR"),
        SND_SOC_DAPM_OUTPUT("OUT2"),
};

/* DAPM audio route definition */
static const struct snd_soc_dapm_route da7210_audio_map[] = {
        /* Dest       Connecting Widget    source */
        /* Input path */
        {"Mic Left", NULL, "MICL"},
        {"Mic Right", NULL, "MICR"},
        {"Aux1 Left", NULL, "AUX1L"},
        {"Aux1 Right", NULL, "AUX1R"},
        {"Aux2 Mono", NULL, "AUX2"},

        {"In Mixer Left", "Mic Left Switch", "Mic Left"},
        {"In Mixer Left", "Mic Right Switch", "Mic Right"},
        {"In Mixer Left", "Aux1 Left Switch", "Aux1 Left"},
        {"In Mixer Left", "Aux2 Switch", "Aux2 Mono"},
        {"In Mixer Left", "Outmix Left Switch", "Out Mixer Left"},

        {"In Mixer Right", "Mic Right Switch", "Mic Right"},
        {"In Mixer Right", "Mic Left Switch", "Mic Left"},
        {"In Mixer Right", "Aux1 Right Switch", "Aux1 Right"},
        {"In Mixer Right", "Aux2 Switch", "Aux2 Mono"},
        {"In Mixer Right", "Outmix Right Switch", "Out Mixer Right"},

        {"INPGA Left", NULL, "In Mixer Left"},
        {"ADC Left", NULL, "INPGA Left"},

        {"INPGA Right", NULL, "In Mixer Right"},
        {"ADC Right", NULL, "INPGA Right"},

        /* Output path */
        {"Out Mixer Left", "Aux1 Left Switch", "Aux1 Left"},
        {"Out Mixer Left", "Aux2 Switch", "Aux2 Mono"},
        {"Out Mixer Left", "INPGA Left Switch", "INPGA Left"},
        {"Out Mixer Left", "INPGA Right Switch", "INPGA Right"},
        {"Out Mixer Left", "DAC Left Switch", "DAC Left"},

        {"Out Mixer Right", "Aux1 Right Switch", "Aux1 Right"},
        {"Out Mixer Right", "Aux2 Switch", "Aux2 Mono"},
        {"Out Mixer Right", "INPGA Right Switch", "INPGA Right"},
        {"Out Mixer Right", "INPGA Left Switch", "INPGA Left"},
        {"Out Mixer Right", "DAC Right Switch", "DAC Right"},

        {"Mono Mixer", "INPGA Right Switch", "INPGA Right"},
        {"Mono Mixer", "INPGA Left Switch", "INPGA Left"},
        {"Mono Mixer", "Outmix Right Switch", "Out Mixer Right"},
        {"Mono Mixer", "Outmix Left Switch", "Out Mixer Left"},

        {"OUTPGA Left Enable", NULL, "Out Mixer Left"},
        {"OUTPGA Right Enable", NULL, "Out Mixer Right"},

        {"Out1 Left", NULL, "OUTPGA Left Enable"},
        {"OUT1L", NULL, "Out1 Left"},

        {"Out1 Right", NULL, "OUTPGA Right Enable"},
        {"OUT1R", NULL, "Out1 Right"},

        {"Headphone Left", NULL, "OUTPGA Left Enable"},
        {"HPL", NULL, "Headphone Left"},

        {"Headphone Right", NULL, "OUTPGA Right Enable"},
        {"HPR", NULL, "Headphone Right"},

        {"Out2 Mono", NULL, "Mono Mixer"},
        {"OUT2", NULL, "Out2 Mono"},
};

/* Codec private data */
struct da7210_priv {
        struct regmap *regmap;
        unsigned int mclk_rate;
        int master;
};

static const struct reg_default da7210_reg_defaults[] = {
        { 0x00, 0x00 },
        { 0x01, 0x11 },
        { 0x03, 0x00 },
        { 0x04, 0x00 },
        { 0x05, 0x00 },
        { 0x06, 0x00 },
        { 0x07, 0x00 },
        { 0x08, 0x00 },
        { 0x09, 0x00 },
        { 0x0a, 0x00 },
        { 0x0b, 0x00 },
        { 0x0c, 0x00 },
        { 0x0d, 0x00 },
        { 0x0e, 0x00 },
        { 0x0f, 0x08 },
        { 0x10, 0x00 },
        { 0x11, 0x00 },
        { 0x12, 0x00 },
        { 0x13, 0x00 },
        { 0x14, 0x08 },
        { 0x15, 0x10 },
        { 0x16, 0x10 },
        { 0x17, 0x54 },
        { 0x18, 0x40 },
        { 0x19, 0x00 },
        { 0x1a, 0x00 },
        { 0x1b, 0x00 },
        { 0x1c, 0x00 },
        { 0x1d, 0x00 },
        { 0x1e, 0x00 },
        { 0x1f, 0x00 },
        { 0x20, 0x00 },
        { 0x21, 0x00 },
        { 0x22, 0x00 },
        { 0x23, 0x02 },
        { 0x24, 0x00 },
        { 0x25, 0x76 },
        { 0x26, 0x00 },
        { 0x27, 0x00 },
        { 0x28, 0x04 },
        { 0x29, 0x00 },
        { 0x2a, 0x00 },
        { 0x2b, 0x30 },
        { 0x2c, 0x2A },
        { 0x83, 0x00 },
        { 0x84, 0x00 },
        { 0x85, 0x00 },
        { 0x86, 0x00 },
        { 0x87, 0x00 },
        { 0x88, 0x00 },
};

static bool da7210_readable_register(struct device *dev, unsigned int reg)
{
        switch (reg) {
        case DA7210_A_HID_UNLOCK:
        case DA7210_A_TEST_UNLOCK:
        case DA7210_A_PLL1:
        case DA7210_A_CP_MODE:
                return false;
        default:
                return true;
        }
}

static bool da7210_volatile_register(struct device *dev,
                                    unsigned int reg)
{
        switch (reg) {
        case DA7210_STATUS:
                return true;
        default:
                return false;
        }
}

/*
 * Set PCM DAI word length.
 */
static int da7210_hw_params(struct snd_pcm_substream *substream,
                            struct snd_pcm_hw_params *params,
                            struct snd_soc_dai *dai)
{
        struct snd_soc_component *component = dai->component;
        struct da7210_priv *da7210 = snd_soc_component_get_drvdata(component);
        u32 dai_cfg1;
        u32 fs, sysclk;

        /* set DAI source to Left and Right ADC */
        snd_soc_component_write(component, DA7210_DAI_SRC_SEL,
                     DA7210_DAI_OUT_R_SRC | DA7210_DAI_OUT_L_SRC);

        /* Enable DAI */
        snd_soc_component_write(component, DA7210_DAI_CFG3, DA7210_DAI_OE | DA7210_DAI_EN);

        dai_cfg1 = 0xFC & snd_soc_component_read(component, DA7210_DAI_CFG1);

        switch (params_width(params)) {
        case 16:
                dai_cfg1 |= DA7210_DAI_WORD_S16_LE;
                break;
        case 20:
                dai_cfg1 |= DA7210_DAI_WORD_S20_3LE;
                break;
        case 24:
                dai_cfg1 |= DA7210_DAI_WORD_S24_LE;
                break;
        case 32:
                dai_cfg1 |= DA7210_DAI_WORD_S32_LE;
                break;
        default:
                return -EINVAL;
        }

        snd_soc_component_write(component, DA7210_DAI_CFG1, dai_cfg1);

        switch (params_rate(params)) {
        case 8000:
                fs              = DA7210_PLL_FS_8000;
                sysclk          = 3072000;
                break;
        case 11025:
                fs              = DA7210_PLL_FS_11025;
                sysclk          = 2822400;
                break;
        case 12000:
                fs              = DA7210_PLL_FS_12000;
                sysclk          = 3072000;
                break;
        case 16000:
                fs              = DA7210_PLL_FS_16000;
                sysclk          = 3072000;
                break;
        case 22050:
                fs              = DA7210_PLL_FS_22050;
                sysclk          = 2822400;
                break;
        case 32000:
                fs              = DA7210_PLL_FS_32000;
                sysclk          = 3072000;
                break;
        case 44100:
                fs              = DA7210_PLL_FS_44100;
                sysclk          = 2822400;
                break;
        case 48000:
                fs              = DA7210_PLL_FS_48000;
                sysclk          = 3072000;
                break;
        case 88200:
                fs              = DA7210_PLL_FS_88200;
                sysclk          = 2822400;
                break;
        case 96000:
                fs              = DA7210_PLL_FS_96000;
                sysclk          = 3072000;
                break;
        default:
                return -EINVAL;
        }

        /* Disable active mode */
        snd_soc_component_update_bits(component, DA7210_STARTUP1, DA7210_SC_MST_EN, 0);

        snd_soc_component_update_bits(component, DA7210_PLL, DA7210_PLL_FS_MASK, fs);

        if (da7210->mclk_rate && (da7210->mclk_rate != sysclk)) {
                /* PLL mode, disable PLL bypass */
                snd_soc_component_update_bits(component, DA7210_PLL_DIV3, DA7210_PLL_BYP, 0);

                if (!da7210->master) {
                        /* PLL slave mode, also enable SRM */
                        snd_soc_component_update_bits(component, DA7210_PLL,
                                                   (DA7210_MCLK_SRM_EN |
                                                    DA7210_MCLK_DET_EN),
                                                   (DA7210_MCLK_SRM_EN |
                                                    DA7210_MCLK_DET_EN));
                }
        } else {
                /* PLL bypass mode, enable PLL bypass and Auto Detection */
                snd_soc_component_update_bits(component, DA7210_PLL, DA7210_MCLK_DET_EN,
                                                       DA7210_MCLK_DET_EN);
                snd_soc_component_update_bits(component, DA7210_PLL_DIV3, DA7210_PLL_BYP,
                                                            DA7210_PLL_BYP);
        }
        /* Enable active mode */
        snd_soc_component_update_bits(component, DA7210_STARTUP1,
                            DA7210_SC_MST_EN, DA7210_SC_MST_EN);

        return 0;
}

/*
 * Set DAI mode and Format
 */
static int da7210_set_dai_fmt(struct snd_soc_dai *codec_dai, u32 fmt)
{
        struct snd_soc_component *component = codec_dai->component;
        struct da7210_priv *da7210 = snd_soc_component_get_drvdata(component);
        u32 dai_cfg1;
        u32 dai_cfg3;

        dai_cfg1 = 0x7f & snd_soc_component_read(component, DA7210_DAI_CFG1);
        dai_cfg3 = 0xfc & snd_soc_component_read(component, DA7210_DAI_CFG3);

        if ((snd_soc_component_read(component, DA7210_PLL) & DA7210_PLL_EN) &&
                (!(snd_soc_component_read(component, DA7210_PLL_DIV3) & DA7210_PLL_BYP)))
                return -EINVAL;

        switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
        case SND_SOC_DAIFMT_CBP_CFP:
                da7210->master = 1;
                dai_cfg1 |= DA7210_DAI_MODE_MASTER;
                break;
        case SND_SOC_DAIFMT_CBC_CFC:
                da7210->master = 0;
                dai_cfg1 |= DA7210_DAI_MODE_SLAVE;
                break;
        default:
                return -EINVAL;
        }

        /* FIXME
         *
         * It support I2S only now
         */
        switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
        case SND_SOC_DAIFMT_I2S:
                dai_cfg3 |= DA7210_DAI_FORMAT_I2SMODE;
                break;
        case SND_SOC_DAIFMT_LEFT_J:
                dai_cfg3 |= DA7210_DAI_FORMAT_LEFT_J;
                break;
        case SND_SOC_DAIFMT_RIGHT_J:
                dai_cfg3 |= DA7210_DAI_FORMAT_RIGHT_J;
                break;
        default:
                return -EINVAL;
        }

        /* FIXME
         *
         * It support 64bit data transmission only now
         */
        dai_cfg1 |= DA7210_DAI_FLEN_64BIT;

        snd_soc_component_write(component, DA7210_DAI_CFG1, dai_cfg1);
        snd_soc_component_write(component, DA7210_DAI_CFG3, dai_cfg3);

        return 0;
}

static int da7210_mute(struct snd_soc_dai *dai, int mute, int direction)
{
        struct snd_soc_component *component = dai->component;
        u8 mute_reg = snd_soc_component_read(component, DA7210_DAC_HPF) & 0xFB;

        if (mute)
                snd_soc_component_write(component, DA7210_DAC_HPF, mute_reg | 0x4);
        else
                snd_soc_component_write(component, DA7210_DAC_HPF, mute_reg);
        return 0;
}

#define DA7210_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
                        SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)

static int da7210_set_dai_sysclk(struct snd_soc_dai *codec_dai,
                                 int clk_id, unsigned int freq, int dir)
{
        struct snd_soc_component *component = codec_dai->component;
        struct da7210_priv *da7210 = snd_soc_component_get_drvdata(component);

        switch (clk_id) {
        case DA7210_CLKSRC_MCLK:
                switch (freq) {
                case 12000000:
                case 13000000:
                case 13500000:
                case 14400000:
                case 19200000:
                case 19680000:
                case 19800000:
                        da7210->mclk_rate = freq;
                        return 0;
                default:
                        dev_err(codec_dai->dev, "Unsupported MCLK value %d\n",
                                freq);
                        return -EINVAL;
                }
                break;
        default:
                dev_err(codec_dai->dev, "Unknown clock source %d\n", clk_id);
                return -EINVAL;
        }
}

/**
 * da7210_set_dai_pll   :Configure the codec PLL
 * @codec_dai: pointer to codec DAI
 * @pll_id: da7210 has only one pll, so pll_id is always zero
 * @source: clock source
 * @fref: MCLK frequency, should be < 20MHz
 * @fout: FsDM value, Refer page 44 & 45 of datasheet
 *
 * Note: Supported PLL input frequencies are 12MHz, 13MHz, 13.5MHz, 14.4MHz,
 *       19.2MHz, 19.6MHz and 19.8MHz
 *
 * Return: Zero for success, negative error code for error
 */
static int da7210_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id,
                              int source, unsigned int fref, unsigned int fout)
{
        struct snd_soc_component *component = codec_dai->component;
        struct da7210_priv *da7210 = snd_soc_component_get_drvdata(component);

        u8 pll_div1, pll_div2, pll_div3, cnt;

        /* In slave mode, there is only one set of divisors */
        if (!da7210->master)
                fout = 2822400;

        /* Search pll div array for correct divisors */
        for (cnt = 0; cnt < ARRAY_SIZE(da7210_pll_div); cnt++) {
                /* check fref, mode  and fout */
                if ((fref == da7210_pll_div[cnt].fref) &&
                    (da7210->master ==  da7210_pll_div[cnt].mode) &&
                    (fout == da7210_pll_div[cnt].fout)) {
                        /* all match, pick up divisors */
                        pll_div1 = da7210_pll_div[cnt].div1;
                        pll_div2 = da7210_pll_div[cnt].div2;
                        pll_div3 = da7210_pll_div[cnt].div3;
                        break;
                }
        }
        if (cnt >= ARRAY_SIZE(da7210_pll_div))
                goto err;

        /* Disable active mode */
        snd_soc_component_update_bits(component, DA7210_STARTUP1, DA7210_SC_MST_EN, 0);
        /* Write PLL dividers */
        snd_soc_component_write(component, DA7210_PLL_DIV1, pll_div1);
        snd_soc_component_write(component, DA7210_PLL_DIV2, pll_div2);
        snd_soc_component_update_bits(component, DA7210_PLL_DIV3,
                                   DA7210_PLL_DIV_L_MASK, pll_div3);

        /* Enable PLL */
        snd_soc_component_update_bits(component, DA7210_PLL, DA7210_PLL_EN, DA7210_PLL_EN);

        /* Enable active mode */
        snd_soc_component_update_bits(component, DA7210_STARTUP1, DA7210_SC_MST_EN,
                                                    DA7210_SC_MST_EN);
        return 0;
err:
        dev_err(codec_dai->dev, "Unsupported PLL input frequency %d\n", fref);
        return -EINVAL;
}

/* DAI operations */
static const struct snd_soc_dai_ops da7210_dai_ops = {
        .hw_params      = da7210_hw_params,
        .set_fmt        = da7210_set_dai_fmt,
        .set_sysclk     = da7210_set_dai_sysclk,
        .set_pll        = da7210_set_dai_pll,
        .mute_stream    = da7210_mute,
        .no_capture_mute = 1,
};

static struct snd_soc_dai_driver da7210_dai = {
        .name = "da7210-hifi",
        /* playback capabilities */
        .playback = {
                .stream_name = "Playback",
                .channels_min = 1,
                .channels_max = 2,
                .rates = SNDRV_PCM_RATE_8000_96000,
                .formats = DA7210_FORMATS,
        },
        /* capture capabilities */
        .capture = {
                .stream_name = "Capture",
                .channels_min = 1,
                .channels_max = 2,
                .rates = SNDRV_PCM_RATE_8000_96000,
                .formats = DA7210_FORMATS,
        },
        .ops = &da7210_dai_ops,
        .symmetric_rate = 1,
};

static int da7210_probe(struct snd_soc_component *component)
{
        struct da7210_priv *da7210 = snd_soc_component_get_drvdata(component);

        dev_info(component->dev, "DA7210 Audio Codec %s\n", DA7210_VERSION);

        da7210->mclk_rate       = 0;    /* This will be set from set_sysclk() */
        da7210->master          = 0;    /* This will be set from set_fmt() */

        /* Enable internal regulator & bias current */
        snd_soc_component_write(component, DA7210_CONTROL, DA7210_REG_EN | DA7210_BIAS_EN);

        /*
         * ADC settings
         */

        /* Enable Left & Right MIC PGA and Mic Bias */
        snd_soc_component_write(component, DA7210_MIC_L, DA7210_MIC_L_EN | DA7210_MICBIAS_EN);
        snd_soc_component_write(component, DA7210_MIC_R, DA7210_MIC_R_EN);

        /* Enable Left and Right input PGA */
        snd_soc_component_write(component, DA7210_INMIX_L, DA7210_IN_L_EN);
        snd_soc_component_write(component, DA7210_INMIX_R, DA7210_IN_R_EN);

        /* Enable Left and Right ADC */
        snd_soc_component_write(component, DA7210_ADC, DA7210_ADC_L_EN | DA7210_ADC_R_EN);

        /*
         * DAC settings
         */

        /* Enable Left and Right DAC */
        snd_soc_component_write(component, DA7210_DAC_SEL,
                     DA7210_DAC_L_SRC_DAI_L | DA7210_DAC_L_EN |
                     DA7210_DAC_R_SRC_DAI_R | DA7210_DAC_R_EN);

        /* Enable Left and Right out PGA */
        snd_soc_component_write(component, DA7210_OUTMIX_L, DA7210_OUT_L_EN);
        snd_soc_component_write(component, DA7210_OUTMIX_R, DA7210_OUT_R_EN);

        /* Enable Left and Right HeadPhone PGA */
        snd_soc_component_write(component, DA7210_HP_CFG,
                     DA7210_HP_2CAP_MODE | DA7210_HP_SENSE_EN |
                     DA7210_HP_L_EN | DA7210_HP_MODE | DA7210_HP_R_EN);

        /* Enable ramp mode for DAC gain update */
        snd_soc_component_write(component, DA7210_SOFTMUTE, DA7210_RAMP_EN);

        /*
         * For DA7210 codec, there are two ways to enable/disable analog IOs
         * and ADC/DAC,
         * (1) Using "Enable Bit" of register associated with that IO
         * (or ADC/DAC)
         *      e.g. Mic Left can be enabled using bit 7 of MIC_L(0x7) reg
         *
         * (2) Using "Standby Bit" of STARTUP2 or STARTUP3 register
         *      e.g. Mic left can be put to STANDBY using bit 0 of STARTUP3(0x5)
         *
         * Out of these two methods, the one using STANDBY bits is preferred
         * way to enable/disable individual blocks. This is because STANDBY
         * registers are part of system controller which allows system power
         * up/down in a controlled, pop-free manner. Also, as per application
         * note of DA7210, STANDBY register bits are only effective if a
         * particular IO (or ADC/DAC) is already enabled using enable/disable
         * register bits. Keeping these things in mind, current DAPM
         * implementation manipulates only STANDBY bits.
         *
         * Overall implementation can be outlined as below,
         *
         * - "Enable bit" of an IO or ADC/DAC is used to enable it in probe()
         * - "STANDBY bit" is controlled by DAPM
         */

        /* Enable Line out amplifiers */
        snd_soc_component_write(component, DA7210_OUT1_L, DA7210_OUT1_L_EN);
        snd_soc_component_write(component, DA7210_OUT1_R, DA7210_OUT1_R_EN);
        snd_soc_component_write(component, DA7210_OUT2, DA7210_OUT2_EN |
                     DA7210_OUT2_OUTMIX_L | DA7210_OUT2_OUTMIX_R);

        /* Enable Aux1 */
        snd_soc_component_write(component, DA7210_AUX1_L, DA7210_AUX1_L_EN);
        snd_soc_component_write(component, DA7210_AUX1_R, DA7210_AUX1_R_EN);
        /* Enable Aux2 */
        snd_soc_component_write(component, DA7210_AUX2, DA7210_AUX2_EN);

        /* Set PLL Master clock range 10-20 MHz, enable PLL bypass */
        snd_soc_component_write(component, DA7210_PLL_DIV3, DA7210_MCLK_RANGE_10_20_MHZ |
                                              DA7210_PLL_BYP);

        /* Diable PLL and bypass it */
        snd_soc_component_write(component, DA7210_PLL, DA7210_PLL_FS_48000);

        /* Activate all enabled subsystem */
        snd_soc_component_write(component, DA7210_STARTUP1, DA7210_SC_MST_EN);

        dev_info(component->dev, "DA7210 Audio Codec %s\n", DA7210_VERSION);

        return 0;
}

static const struct snd_soc_component_driver soc_component_dev_da7210 = {
        .probe                  = da7210_probe,
        .controls               = da7210_snd_controls,
        .num_controls           = ARRAY_SIZE(da7210_snd_controls),
        .dapm_widgets           = da7210_dapm_widgets,
        .num_dapm_widgets       = ARRAY_SIZE(da7210_dapm_widgets),
        .dapm_routes            = da7210_audio_map,
        .num_dapm_routes        = ARRAY_SIZE(da7210_audio_map),
        .idle_bias_on           = 1,
        .use_pmdown_time        = 1,
        .endianness             = 1,
};

#if IS_ENABLED(CONFIG_I2C)

static const struct reg_sequence da7210_regmap_i2c_patch[] = {

        /* System controller master disable */
        { DA7210_STARTUP1, 0x00 },
        /* Set PLL Master clock range 10-20 MHz */
        { DA7210_PLL_DIV3, DA7210_MCLK_RANGE_10_20_MHZ },

        /* to unlock */
        { DA7210_A_HID_UNLOCK, 0x8B},
        { DA7210_A_TEST_UNLOCK, 0xB4},
        { DA7210_A_PLL1, 0x01},
        { DA7210_A_CP_MODE, 0x7C},
        /* to re-lock */
        { DA7210_A_HID_UNLOCK, 0x00},
        { DA7210_A_TEST_UNLOCK, 0x00},
};

static const struct regmap_config da7210_regmap_config_i2c = {
        .reg_bits = 8,
        .val_bits = 8,

        .reg_defaults = da7210_reg_defaults,
        .num_reg_defaults = ARRAY_SIZE(da7210_reg_defaults),
        .volatile_reg = da7210_volatile_register,
        .readable_reg = da7210_readable_register,
        .cache_type = REGCACHE_RBTREE,
};

static int da7210_i2c_probe(struct i2c_client *i2c)
{
        struct da7210_priv *da7210;
        int ret;

        da7210 = devm_kzalloc(&i2c->dev, sizeof(struct da7210_priv),
                              GFP_KERNEL);
        if (!da7210)
                return -ENOMEM;

        i2c_set_clientdata(i2c, da7210);

        da7210->regmap = devm_regmap_init_i2c(i2c, &da7210_regmap_config_i2c);
        if (IS_ERR(da7210->regmap)) {
                ret = PTR_ERR(da7210->regmap);
                dev_err(&i2c->dev, "regmap_init() failed: %d\n", ret);
                return ret;
        }

        ret = regmap_register_patch(da7210->regmap, da7210_regmap_i2c_patch,
                                    ARRAY_SIZE(da7210_regmap_i2c_patch));
        if (ret != 0)
                dev_warn(&i2c->dev, "Failed to apply regmap patch: %d\n", ret);

        ret =  devm_snd_soc_register_component(&i2c->dev,
                        &soc_component_dev_da7210, &da7210_dai, 1);
        if (ret < 0)
                dev_err(&i2c->dev, "Failed to register component: %d\n", ret);

        return ret;
}

static const struct i2c_device_id da7210_i2c_id[] = {
        { "da7210" },
        { }
};
MODULE_DEVICE_TABLE(i2c, da7210_i2c_id);

/* I2C codec control layer */
static struct i2c_driver da7210_i2c_driver = {
        .driver = {
                .name = "da7210",
        },
        .probe          = da7210_i2c_probe,
        .id_table       = da7210_i2c_id,
};
#endif

#if defined(CONFIG_SPI_MASTER)

static const struct reg_sequence da7210_regmap_spi_patch[] = {
        /* Dummy read to give two pulses over nCS for SPI */
        { DA7210_AUX2, 0x00 },
        { DA7210_AUX2, 0x00 },

        /* System controller master disable */
        { DA7210_STARTUP1, 0x00 },
        /* Set PLL Master clock range 10-20 MHz */
        { DA7210_PLL_DIV3, DA7210_MCLK_RANGE_10_20_MHZ },

        /* to set PAGE1 of SPI register space */
        { DA7210_PAGE_CONTROL, 0x80 },
        /* to unlock */
        { DA7210_A_HID_UNLOCK, 0x8B},
        { DA7210_A_TEST_UNLOCK, 0xB4},
        { DA7210_A_PLL1, 0x01},
        { DA7210_A_CP_MODE, 0x7C},
        /* to re-lock */
        { DA7210_A_HID_UNLOCK, 0x00},
        { DA7210_A_TEST_UNLOCK, 0x00},
        /* to set back PAGE0 of SPI register space */
        { DA7210_PAGE_CONTROL, 0x00 },
};

static const struct regmap_config da7210_regmap_config_spi = {
        .reg_bits = 8,
        .val_bits = 8,
        .read_flag_mask = 0x01,
        .write_flag_mask = 0x00,

        .reg_defaults = da7210_reg_defaults,
        .num_reg_defaults = ARRAY_SIZE(da7210_reg_defaults),
        .volatile_reg = da7210_volatile_register,
        .readable_reg = da7210_readable_register,
        .cache_type = REGCACHE_RBTREE,
};

static int da7210_spi_probe(struct spi_device *spi)
{
        struct da7210_priv *da7210;
        int ret;

        da7210 = devm_kzalloc(&spi->dev, sizeof(struct da7210_priv),
                              GFP_KERNEL);
        if (!da7210)
                return -ENOMEM;

        spi_set_drvdata(spi, da7210);
        da7210->regmap = devm_regmap_init_spi(spi, &da7210_regmap_config_spi);
        if (IS_ERR(da7210->regmap)) {
                ret = PTR_ERR(da7210->regmap);
                dev_err(&spi->dev, "Failed to register regmap: %d\n", ret);
                return ret;
        }

        ret = regmap_register_patch(da7210->regmap, da7210_regmap_spi_patch,
                                    ARRAY_SIZE(da7210_regmap_spi_patch));
        if (ret != 0)
                dev_warn(&spi->dev, "Failed to apply regmap patch: %d\n", ret);

        ret = devm_snd_soc_register_component(&spi->dev,
                        &soc_component_dev_da7210, &da7210_dai, 1);

        return ret;
}

static struct spi_driver da7210_spi_driver = {
        .driver = {
                .name = "da7210",
        },
        .probe = da7210_spi_probe,
};
#endif

static int __init da7210_modinit(void)
{
        int ret = 0;
#if IS_ENABLED(CONFIG_I2C)
        ret = i2c_add_driver(&da7210_i2c_driver);
        if (ret)
                return ret;
#endif
#if defined(CONFIG_SPI_MASTER)
        ret = spi_register_driver(&da7210_spi_driver);
        if (ret) {
                printk(KERN_ERR "Failed to register da7210 SPI driver: %d\n",
                       ret);
        }
#endif
        return ret;
}
module_init(da7210_modinit);

static void __exit da7210_exit(void)
{
#if IS_ENABLED(CONFIG_I2C)
        i2c_del_driver(&da7210_i2c_driver);
#endif
#if defined(CONFIG_SPI_MASTER)
        spi_unregister_driver(&da7210_spi_driver);
#endif
}
module_exit(da7210_exit);

MODULE_DESCRIPTION("ASoC DA7210 driver");
MODULE_AUTHOR("David Chen, Kuninori Morimoto");
MODULE_LICENSE("GPL");