root/sound/soc/codecs/da7219.c
// SPDX-License-Identifier: GPL-2.0-or-later
/*
 * da7219.c - DA7219 ALSA SoC Codec Driver
 *
 * Copyright (c) 2015 Dialog Semiconductor
 *
 * Author: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
 */

#include <linux/acpi.h>
#include <linux/clk.h>
#include <linux/clkdev.h>
#include <linux/clk-provider.h>
#include <linux/i2c.h>
#include <linux/of.h>
#include <linux/property.h>
#include <linux/regmap.h>
#include <linux/slab.h>
#include <linux/pm.h>
#include <linux/module.h>
#include <linux/delay.h>
#include <linux/regulator/consumer.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 <asm/div64.h>

#include <sound/da7219.h>
#include "da7219.h"
#include "da7219-aad.h"


/*
 * TLVs and Enums
 */

/* Input TLVs */
static const DECLARE_TLV_DB_SCALE(da7219_mic_gain_tlv, -600, 600, 0);
static const DECLARE_TLV_DB_SCALE(da7219_mixin_gain_tlv, -450, 150, 0);
static const DECLARE_TLV_DB_SCALE(da7219_adc_dig_gain_tlv, -8325, 75, 0);
static const DECLARE_TLV_DB_SCALE(da7219_alc_threshold_tlv, -9450, 150, 0);
static const DECLARE_TLV_DB_SCALE(da7219_alc_gain_tlv, 0, 600, 0);
static const DECLARE_TLV_DB_SCALE(da7219_alc_ana_gain_tlv, 0, 600, 0);
static const DECLARE_TLV_DB_SCALE(da7219_sidetone_gain_tlv, -4200, 300, 0);
static const DECLARE_TLV_DB_SCALE(da7219_tonegen_gain_tlv, -4500, 300, 0);

/* Output TLVs */
static const DECLARE_TLV_DB_SCALE(da7219_dac_eq_band_tlv, -1050, 150, 0);

static const DECLARE_TLV_DB_RANGE(da7219_dac_dig_gain_tlv,
        0x0, 0x07, TLV_DB_SCALE_ITEM(TLV_DB_GAIN_MUTE, 0, 1),
        /* -77.25dB to 12dB */
        0x08, 0x7f, TLV_DB_SCALE_ITEM(-7725, 75, 0)
);

static const DECLARE_TLV_DB_SCALE(da7219_dac_ng_threshold_tlv, -10200, 600, 0);
static const DECLARE_TLV_DB_SCALE(da7219_hp_gain_tlv, -5700, 100, 0);

/* Input Enums */
static const char * const da7219_alc_attack_rate_txt[] = {
        "7.33/fs", "14.66/fs", "29.32/fs", "58.64/fs", "117.3/fs", "234.6/fs",
        "469.1/fs", "938.2/fs", "1876/fs", "3753/fs", "7506/fs", "15012/fs",
        "30024/fs"
};

static const struct soc_enum da7219_alc_attack_rate =
        SOC_ENUM_SINGLE(DA7219_ALC_CTRL2, DA7219_ALC_ATTACK_SHIFT,
                        DA7219_ALC_ATTACK_MAX, da7219_alc_attack_rate_txt);

static const char * const da7219_alc_release_rate_txt[] = {
        "28.66/fs", "57.33/fs", "114.6/fs", "229.3/fs", "458.6/fs", "917.1/fs",
        "1834/fs", "3668/fs", "7337/fs", "14674/fs", "29348/fs"
};

static const struct soc_enum da7219_alc_release_rate =
        SOC_ENUM_SINGLE(DA7219_ALC_CTRL2, DA7219_ALC_RELEASE_SHIFT,
                        DA7219_ALC_RELEASE_MAX, da7219_alc_release_rate_txt);

static const char * const da7219_alc_hold_time_txt[] = {
        "62/fs", "124/fs", "248/fs", "496/fs", "992/fs", "1984/fs", "3968/fs",
        "7936/fs", "15872/fs", "31744/fs", "63488/fs", "126976/fs",
        "253952/fs", "507904/fs", "1015808/fs", "2031616/fs"
};

static const struct soc_enum da7219_alc_hold_time =
        SOC_ENUM_SINGLE(DA7219_ALC_CTRL3, DA7219_ALC_HOLD_SHIFT,
                        DA7219_ALC_HOLD_MAX, da7219_alc_hold_time_txt);

static const char * const da7219_alc_env_rate_txt[] = {
        "1/4", "1/16", "1/256", "1/65536"
};

static const struct soc_enum da7219_alc_env_attack_rate =
        SOC_ENUM_SINGLE(DA7219_ALC_CTRL3, DA7219_ALC_INTEG_ATTACK_SHIFT,
                        DA7219_ALC_INTEG_MAX, da7219_alc_env_rate_txt);

static const struct soc_enum da7219_alc_env_release_rate =
        SOC_ENUM_SINGLE(DA7219_ALC_CTRL3, DA7219_ALC_INTEG_RELEASE_SHIFT,
                        DA7219_ALC_INTEG_MAX, da7219_alc_env_rate_txt);

static const char * const da7219_alc_anticlip_step_txt[] = {
        "0.034dB/fs", "0.068dB/fs", "0.136dB/fs", "0.272dB/fs"
};

static const struct soc_enum da7219_alc_anticlip_step =
        SOC_ENUM_SINGLE(DA7219_ALC_ANTICLIP_CTRL,
                        DA7219_ALC_ANTICLIP_STEP_SHIFT,
                        DA7219_ALC_ANTICLIP_STEP_MAX,
                        da7219_alc_anticlip_step_txt);

/* Input/Output Enums */
static const char * const da7219_gain_ramp_rate_txt[] = {
        "Nominal Rate * 8", "Nominal Rate", "Nominal Rate / 8",
        "Nominal Rate / 16"
};

static const struct soc_enum da7219_gain_ramp_rate =
        SOC_ENUM_SINGLE(DA7219_GAIN_RAMP_CTRL, DA7219_GAIN_RAMP_RATE_SHIFT,
                        DA7219_GAIN_RAMP_RATE_MAX, da7219_gain_ramp_rate_txt);

static const char * const da7219_hpf_mode_txt[] = {
        "Disabled", "Audio", "Voice"
};

static const unsigned int da7219_hpf_mode_val[] = {
        DA7219_HPF_DISABLED, DA7219_HPF_AUDIO_EN, DA7219_HPF_VOICE_EN,
};

static const struct soc_enum da7219_adc_hpf_mode =
        SOC_VALUE_ENUM_SINGLE(DA7219_ADC_FILTERS1, DA7219_HPF_MODE_SHIFT,
                              DA7219_HPF_MODE_MASK, DA7219_HPF_MODE_MAX,
                              da7219_hpf_mode_txt, da7219_hpf_mode_val);

static const struct soc_enum da7219_dac_hpf_mode =
        SOC_VALUE_ENUM_SINGLE(DA7219_DAC_FILTERS1, DA7219_HPF_MODE_SHIFT,
                              DA7219_HPF_MODE_MASK, DA7219_HPF_MODE_MAX,
                              da7219_hpf_mode_txt, da7219_hpf_mode_val);

static const char * const da7219_audio_hpf_corner_txt[] = {
        "2Hz", "4Hz", "8Hz", "16Hz"
};

static const struct soc_enum da7219_adc_audio_hpf_corner =
        SOC_ENUM_SINGLE(DA7219_ADC_FILTERS1,
                        DA7219_ADC_AUDIO_HPF_CORNER_SHIFT,
                        DA7219_AUDIO_HPF_CORNER_MAX,
                        da7219_audio_hpf_corner_txt);

static const struct soc_enum da7219_dac_audio_hpf_corner =
        SOC_ENUM_SINGLE(DA7219_DAC_FILTERS1,
                        DA7219_DAC_AUDIO_HPF_CORNER_SHIFT,
                        DA7219_AUDIO_HPF_CORNER_MAX,
                        da7219_audio_hpf_corner_txt);

static const char * const da7219_voice_hpf_corner_txt[] = {
        "2.5Hz", "25Hz", "50Hz", "100Hz", "150Hz", "200Hz", "300Hz", "400Hz"
};

static const struct soc_enum da7219_adc_voice_hpf_corner =
        SOC_ENUM_SINGLE(DA7219_ADC_FILTERS1,
                        DA7219_ADC_VOICE_HPF_CORNER_SHIFT,
                        DA7219_VOICE_HPF_CORNER_MAX,
                        da7219_voice_hpf_corner_txt);

static const struct soc_enum da7219_dac_voice_hpf_corner =
        SOC_ENUM_SINGLE(DA7219_DAC_FILTERS1,
                        DA7219_DAC_VOICE_HPF_CORNER_SHIFT,
                        DA7219_VOICE_HPF_CORNER_MAX,
                        da7219_voice_hpf_corner_txt);

static const char * const da7219_tonegen_dtmf_key_txt[] = {
        "0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "A", "B", "C", "D",
        "*", "#"
};

static const struct soc_enum da7219_tonegen_dtmf_key =
        SOC_ENUM_SINGLE(DA7219_TONE_GEN_CFG1, DA7219_DTMF_REG_SHIFT,
                        DA7219_DTMF_REG_MAX, da7219_tonegen_dtmf_key_txt);

static const char * const da7219_tonegen_swg_sel_txt[] = {
        "Sum", "SWG1", "SWG2", "SWG1_1-Cos"
};

static const struct soc_enum da7219_tonegen_swg_sel =
        SOC_ENUM_SINGLE(DA7219_TONE_GEN_CFG2, DA7219_SWG_SEL_SHIFT,
                        DA7219_SWG_SEL_MAX, da7219_tonegen_swg_sel_txt);

/* Output Enums */
static const char * const da7219_dac_softmute_rate_txt[] = {
        "1 Sample", "2 Samples", "4 Samples", "8 Samples", "16 Samples",
        "32 Samples", "64 Samples"
};

static const struct soc_enum da7219_dac_softmute_rate =
        SOC_ENUM_SINGLE(DA7219_DAC_FILTERS5, DA7219_DAC_SOFTMUTE_RATE_SHIFT,
                        DA7219_DAC_SOFTMUTE_RATE_MAX,
                        da7219_dac_softmute_rate_txt);

static const char * const da7219_dac_ng_setup_time_txt[] = {
        "256 Samples", "512 Samples", "1024 Samples", "2048 Samples"
};

static const struct soc_enum da7219_dac_ng_setup_time =
        SOC_ENUM_SINGLE(DA7219_DAC_NG_SETUP_TIME,
                        DA7219_DAC_NG_SETUP_TIME_SHIFT,
                        DA7219_DAC_NG_SETUP_TIME_MAX,
                        da7219_dac_ng_setup_time_txt);

static const char * const da7219_dac_ng_rampup_txt[] = {
        "0.22ms/dB", "0.0138ms/dB"
};

static const struct soc_enum da7219_dac_ng_rampup_rate =
        SOC_ENUM_SINGLE(DA7219_DAC_NG_SETUP_TIME,
                        DA7219_DAC_NG_RAMPUP_RATE_SHIFT,
                        DA7219_DAC_NG_RAMP_RATE_MAX,
                        da7219_dac_ng_rampup_txt);

static const char * const da7219_dac_ng_rampdown_txt[] = {
        "0.88ms/dB", "14.08ms/dB"
};

static const struct soc_enum da7219_dac_ng_rampdown_rate =
        SOC_ENUM_SINGLE(DA7219_DAC_NG_SETUP_TIME,
                        DA7219_DAC_NG_RAMPDN_RATE_SHIFT,
                        DA7219_DAC_NG_RAMP_RATE_MAX,
                        da7219_dac_ng_rampdown_txt);


static const char * const da7219_cp_track_mode_txt[] = {
        "Largest Volume", "DAC Volume", "Signal Magnitude"
};

static const unsigned int da7219_cp_track_mode_val[] = {
        DA7219_CP_MCHANGE_LARGEST_VOL, DA7219_CP_MCHANGE_DAC_VOL,
        DA7219_CP_MCHANGE_SIG_MAG
};

static const struct soc_enum da7219_cp_track_mode =
        SOC_VALUE_ENUM_SINGLE(DA7219_CP_CTRL, DA7219_CP_MCHANGE_SHIFT,
                              DA7219_CP_MCHANGE_REL_MASK, DA7219_CP_MCHANGE_MAX,
                              da7219_cp_track_mode_txt,
                              da7219_cp_track_mode_val);


/*
 * Control Functions
 */

/* Locked Kcontrol calls */
static int da7219_volsw_locked_get(struct snd_kcontrol *kcontrol,
                                   struct snd_ctl_elem_value *ucontrol)
{
        struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
        struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
        int ret;

        mutex_lock(&da7219->ctrl_lock);
        ret = snd_soc_get_volsw(kcontrol, ucontrol);
        mutex_unlock(&da7219->ctrl_lock);

        return ret;
}

static int da7219_volsw_locked_put(struct snd_kcontrol *kcontrol,
                                   struct snd_ctl_elem_value *ucontrol)
{
        struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
        struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
        int ret;

        mutex_lock(&da7219->ctrl_lock);
        ret = snd_soc_put_volsw(kcontrol, ucontrol);
        mutex_unlock(&da7219->ctrl_lock);

        return ret;
}

static int da7219_enum_locked_get(struct snd_kcontrol *kcontrol,
                                struct snd_ctl_elem_value *ucontrol)
{
        struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
        struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
        int ret;

        mutex_lock(&da7219->ctrl_lock);
        ret = snd_soc_get_enum_double(kcontrol, ucontrol);
        mutex_unlock(&da7219->ctrl_lock);

        return ret;
}

static int da7219_enum_locked_put(struct snd_kcontrol *kcontrol,
                                struct snd_ctl_elem_value *ucontrol)
{
        struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
        struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
        int ret;

        mutex_lock(&da7219->ctrl_lock);
        ret = snd_soc_put_enum_double(kcontrol, ucontrol);
        mutex_unlock(&da7219->ctrl_lock);

        return ret;
}

/* ALC */
static void da7219_alc_calib(struct snd_soc_component *component)
{
        u8 mic_ctrl, mixin_ctrl, adc_ctrl, calib_ctrl;

        /* Save current state of mic control register */
        mic_ctrl = snd_soc_component_read(component, DA7219_MIC_1_CTRL);

        /* Save current state of input mixer control register */
        mixin_ctrl = snd_soc_component_read(component, DA7219_MIXIN_L_CTRL);

        /* Save current state of input ADC control register */
        adc_ctrl = snd_soc_component_read(component, DA7219_ADC_L_CTRL);

        /* Enable then Mute MIC PGAs */
        snd_soc_component_update_bits(component, DA7219_MIC_1_CTRL, DA7219_MIC_1_AMP_EN_MASK,
                            DA7219_MIC_1_AMP_EN_MASK);
        snd_soc_component_update_bits(component, DA7219_MIC_1_CTRL,
                            DA7219_MIC_1_AMP_MUTE_EN_MASK,
                            DA7219_MIC_1_AMP_MUTE_EN_MASK);

        /* Enable input mixers unmuted */
        snd_soc_component_update_bits(component, DA7219_MIXIN_L_CTRL,
                            DA7219_MIXIN_L_AMP_EN_MASK |
                            DA7219_MIXIN_L_AMP_MUTE_EN_MASK,
                            DA7219_MIXIN_L_AMP_EN_MASK);

        /* Enable input filters unmuted */
        snd_soc_component_update_bits(component, DA7219_ADC_L_CTRL,
                            DA7219_ADC_L_MUTE_EN_MASK | DA7219_ADC_L_EN_MASK,
                            DA7219_ADC_L_EN_MASK);

        /* Perform auto calibration */
        snd_soc_component_update_bits(component, DA7219_ALC_CTRL1,
                            DA7219_ALC_AUTO_CALIB_EN_MASK,
                            DA7219_ALC_AUTO_CALIB_EN_MASK);
        do {
                calib_ctrl = snd_soc_component_read(component, DA7219_ALC_CTRL1);
        } while (calib_ctrl & DA7219_ALC_AUTO_CALIB_EN_MASK);

        /* If auto calibration fails, disable DC offset, hybrid ALC */
        if (calib_ctrl & DA7219_ALC_CALIB_OVERFLOW_MASK) {
                dev_warn(component->dev,
                         "ALC auto calibration failed with overflow\n");
                snd_soc_component_update_bits(component, DA7219_ALC_CTRL1,
                                    DA7219_ALC_OFFSET_EN_MASK |
                                    DA7219_ALC_SYNC_MODE_MASK, 0);
        } else {
                /* Enable DC offset cancellation, hybrid mode */
                snd_soc_component_update_bits(component, DA7219_ALC_CTRL1,
                                    DA7219_ALC_OFFSET_EN_MASK |
                                    DA7219_ALC_SYNC_MODE_MASK,
                                    DA7219_ALC_OFFSET_EN_MASK |
                                    DA7219_ALC_SYNC_MODE_MASK);
        }

        /* Restore input filter control register to original state */
        snd_soc_component_write(component, DA7219_ADC_L_CTRL, adc_ctrl);

        /* Restore input mixer control registers to original state */
        snd_soc_component_write(component, DA7219_MIXIN_L_CTRL, mixin_ctrl);

        /* Restore MIC control registers to original states */
        snd_soc_component_write(component, DA7219_MIC_1_CTRL, mic_ctrl);
}

static int da7219_mixin_gain_put(struct snd_kcontrol *kcontrol,
                                 struct snd_ctl_elem_value *ucontrol)
{
        struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
        struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
        int ret;

        ret = snd_soc_put_volsw(kcontrol, ucontrol);

        /*
         * If ALC in operation and value of control has been updated,
         * make sure calibrated offsets are updated.
         */
        if ((ret == 1) && (da7219->alc_en))
                da7219_alc_calib(component);

        return ret;
}

static int da7219_alc_sw_put(struct snd_kcontrol *kcontrol,
                             struct snd_ctl_elem_value *ucontrol)
{
        struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
        struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);


        /* Force ALC offset calibration if enabling ALC */
        if ((ucontrol->value.integer.value[0]) && (!da7219->alc_en)) {
                da7219_alc_calib(component);
                da7219->alc_en = true;
        } else {
                da7219->alc_en = false;
        }

        return snd_soc_put_volsw(kcontrol, ucontrol);
}

/* ToneGen */
static int da7219_tonegen_freq_get(struct snd_kcontrol *kcontrol,
                                   struct snd_ctl_elem_value *ucontrol)
{
        struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
        struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
        struct soc_mixer_control *mixer_ctrl =
                (struct soc_mixer_control *) kcontrol->private_value;
        unsigned int reg = mixer_ctrl->reg;
        __le16 val;
        int ret;

        mutex_lock(&da7219->ctrl_lock);
        ret = regmap_raw_read(da7219->regmap, reg, &val, sizeof(val));
        mutex_unlock(&da7219->ctrl_lock);

        if (ret)
                return ret;

        /*
         * Frequency value spans two 8-bit registers, lower then upper byte.
         * Therefore we need to convert to host endianness here.
         */
        ucontrol->value.integer.value[0] = le16_to_cpu(val);

        return 0;
}

static int da7219_tonegen_freq_put(struct snd_kcontrol *kcontrol,
                                   struct snd_ctl_elem_value *ucontrol)
{
        struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
        struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
        struct soc_mixer_control *mixer_ctrl =
                (struct soc_mixer_control *) kcontrol->private_value;
        unsigned int reg = mixer_ctrl->reg;
        __le16 val_new, val_old;
        int ret;

        /*
         * Frequency value spans two 8-bit registers, lower then upper byte.
         * Therefore we need to convert to little endian here to align with
         * HW registers.
         */
        val_new = cpu_to_le16(ucontrol->value.integer.value[0]);

        mutex_lock(&da7219->ctrl_lock);
        ret = regmap_raw_read(da7219->regmap, reg, &val_old, sizeof(val_old));
        if (ret == 0 && (val_old != val_new))
                ret = regmap_raw_write(da7219->regmap, reg,
                                &val_new, sizeof(val_new));
        mutex_unlock(&da7219->ctrl_lock);

        if (ret < 0)
                return ret;

        return val_old != val_new;
}


/*
 * KControls
 */

static const struct snd_kcontrol_new da7219_snd_controls[] = {
        /* Mics */
        SOC_SINGLE_TLV("Mic Volume", DA7219_MIC_1_GAIN,
                       DA7219_MIC_1_AMP_GAIN_SHIFT, DA7219_MIC_1_AMP_GAIN_MAX,
                       DA7219_NO_INVERT, da7219_mic_gain_tlv),
        SOC_SINGLE("Mic Switch", DA7219_MIC_1_CTRL,
                   DA7219_MIC_1_AMP_MUTE_EN_SHIFT, DA7219_SWITCH_EN_MAX,
                   DA7219_INVERT),

        /* Mixer Input */
        SOC_SINGLE_EXT_TLV("Mixin Volume", DA7219_MIXIN_L_GAIN,
                           DA7219_MIXIN_L_AMP_GAIN_SHIFT,
                           DA7219_MIXIN_L_AMP_GAIN_MAX, DA7219_NO_INVERT,
                           snd_soc_get_volsw, da7219_mixin_gain_put,
                           da7219_mixin_gain_tlv),
        SOC_SINGLE("Mixin Switch", DA7219_MIXIN_L_CTRL,
                   DA7219_MIXIN_L_AMP_MUTE_EN_SHIFT, DA7219_SWITCH_EN_MAX,
                   DA7219_INVERT),
        SOC_SINGLE("Mixin Gain Ramp Switch", DA7219_MIXIN_L_CTRL,
                   DA7219_MIXIN_L_AMP_RAMP_EN_SHIFT, DA7219_SWITCH_EN_MAX,
                   DA7219_NO_INVERT),
        SOC_SINGLE("Mixin ZC Gain Switch", DA7219_MIXIN_L_CTRL,
                   DA7219_MIXIN_L_AMP_ZC_EN_SHIFT, DA7219_SWITCH_EN_MAX,
                   DA7219_NO_INVERT),

        /* ADC */
        SOC_SINGLE_TLV("Capture Digital Volume", DA7219_ADC_L_GAIN,
                       DA7219_ADC_L_DIGITAL_GAIN_SHIFT,
                       DA7219_ADC_L_DIGITAL_GAIN_MAX, DA7219_NO_INVERT,
                       da7219_adc_dig_gain_tlv),
        SOC_SINGLE("Capture Digital Switch", DA7219_ADC_L_CTRL,
                   DA7219_ADC_L_MUTE_EN_SHIFT, DA7219_SWITCH_EN_MAX,
                   DA7219_INVERT),
        SOC_SINGLE("Capture Digital Gain Ramp Switch", DA7219_ADC_L_CTRL,
                   DA7219_ADC_L_RAMP_EN_SHIFT, DA7219_SWITCH_EN_MAX,
                   DA7219_NO_INVERT),

        /* ALC */
        SOC_ENUM("ALC Attack Rate", da7219_alc_attack_rate),
        SOC_ENUM("ALC Release Rate", da7219_alc_release_rate),
        SOC_ENUM("ALC Hold Time", da7219_alc_hold_time),
        SOC_ENUM("ALC Envelope Attack Rate", da7219_alc_env_attack_rate),
        SOC_ENUM("ALC Envelope Release Rate", da7219_alc_env_release_rate),
        SOC_SINGLE_TLV("ALC Noise Threshold", DA7219_ALC_NOISE,
                       DA7219_ALC_NOISE_SHIFT, DA7219_ALC_THRESHOLD_MAX,
                       DA7219_INVERT, da7219_alc_threshold_tlv),
        SOC_SINGLE_TLV("ALC Min Threshold", DA7219_ALC_TARGET_MIN,
                       DA7219_ALC_THRESHOLD_MIN_SHIFT, DA7219_ALC_THRESHOLD_MAX,
                       DA7219_INVERT, da7219_alc_threshold_tlv),
        SOC_SINGLE_TLV("ALC Max Threshold", DA7219_ALC_TARGET_MAX,
                       DA7219_ALC_THRESHOLD_MAX_SHIFT, DA7219_ALC_THRESHOLD_MAX,
                       DA7219_INVERT, da7219_alc_threshold_tlv),
        SOC_SINGLE_TLV("ALC Max Attenuation", DA7219_ALC_GAIN_LIMITS,
                       DA7219_ALC_ATTEN_MAX_SHIFT, DA7219_ALC_ATTEN_GAIN_MAX,
                       DA7219_NO_INVERT, da7219_alc_gain_tlv),
        SOC_SINGLE_TLV("ALC Max Volume", DA7219_ALC_GAIN_LIMITS,
                       DA7219_ALC_GAIN_MAX_SHIFT, DA7219_ALC_ATTEN_GAIN_MAX,
                       DA7219_NO_INVERT, da7219_alc_gain_tlv),
        SOC_SINGLE_RANGE_TLV("ALC Min Analog Volume", DA7219_ALC_ANA_GAIN_LIMITS,
                             DA7219_ALC_ANA_GAIN_MIN_SHIFT,
                             DA7219_ALC_ANA_GAIN_MIN, DA7219_ALC_ANA_GAIN_MAX,
                             DA7219_NO_INVERT, da7219_alc_ana_gain_tlv),
        SOC_SINGLE_RANGE_TLV("ALC Max Analog Volume", DA7219_ALC_ANA_GAIN_LIMITS,
                             DA7219_ALC_ANA_GAIN_MAX_SHIFT,
                             DA7219_ALC_ANA_GAIN_MIN, DA7219_ALC_ANA_GAIN_MAX,
                             DA7219_NO_INVERT, da7219_alc_ana_gain_tlv),
        SOC_ENUM("ALC Anticlip Step", da7219_alc_anticlip_step),
        SOC_SINGLE("ALC Anticlip Switch", DA7219_ALC_ANTICLIP_CTRL,
                   DA7219_ALC_ANTIPCLIP_EN_SHIFT, DA7219_SWITCH_EN_MAX,
                   DA7219_NO_INVERT),
        SOC_SINGLE_EXT("ALC Switch", DA7219_ALC_CTRL1, DA7219_ALC_EN_SHIFT,
                       DA7219_SWITCH_EN_MAX, DA7219_NO_INVERT,
                       snd_soc_get_volsw, da7219_alc_sw_put),

        /* Input High-Pass Filters */
        SOC_ENUM("ADC HPF Mode", da7219_adc_hpf_mode),
        SOC_ENUM("ADC HPF Corner Audio", da7219_adc_audio_hpf_corner),
        SOC_ENUM("ADC HPF Corner Voice", da7219_adc_voice_hpf_corner),

        /* Sidetone Filter */
        SOC_SINGLE_TLV("Sidetone Volume", DA7219_SIDETONE_GAIN,
                       DA7219_SIDETONE_GAIN_SHIFT, DA7219_SIDETONE_GAIN_MAX,
                       DA7219_NO_INVERT, da7219_sidetone_gain_tlv),
        SOC_SINGLE("Sidetone Switch", DA7219_SIDETONE_CTRL,
                   DA7219_SIDETONE_MUTE_EN_SHIFT, DA7219_SWITCH_EN_MAX,
                   DA7219_INVERT),

        /* Tone Generator */
        SOC_SINGLE_EXT_TLV("ToneGen Volume", DA7219_TONE_GEN_CFG2,
                           DA7219_TONE_GEN_GAIN_SHIFT, DA7219_TONE_GEN_GAIN_MAX,
                           DA7219_NO_INVERT, da7219_volsw_locked_get,
                           da7219_volsw_locked_put, da7219_tonegen_gain_tlv),
        SOC_ENUM_EXT("ToneGen DTMF Key", da7219_tonegen_dtmf_key,
                     da7219_enum_locked_get, da7219_enum_locked_put),
        SOC_SINGLE_EXT("ToneGen DTMF Switch", DA7219_TONE_GEN_CFG1,
                       DA7219_DTMF_EN_SHIFT, DA7219_SWITCH_EN_MAX,
                       DA7219_NO_INVERT, da7219_volsw_locked_get,
                       da7219_volsw_locked_put),
        SOC_ENUM_EXT("ToneGen Sinewave Gen Type", da7219_tonegen_swg_sel,
                     da7219_enum_locked_get, da7219_enum_locked_put),
        SOC_SINGLE_EXT("ToneGen Sinewave1 Freq", DA7219_TONE_GEN_FREQ1_L,
                       DA7219_FREQ1_L_SHIFT, DA7219_FREQ_MAX, DA7219_NO_INVERT,
                       da7219_tonegen_freq_get, da7219_tonegen_freq_put),
        SOC_SINGLE_EXT("ToneGen Sinewave2 Freq", DA7219_TONE_GEN_FREQ2_L,
                       DA7219_FREQ2_L_SHIFT, DA7219_FREQ_MAX, DA7219_NO_INVERT,
                       da7219_tonegen_freq_get, da7219_tonegen_freq_put),
        SOC_SINGLE_EXT("ToneGen On Time", DA7219_TONE_GEN_ON_PER,
                       DA7219_BEEP_ON_PER_SHIFT, DA7219_BEEP_ON_OFF_MAX,
                       DA7219_NO_INVERT, da7219_volsw_locked_get,
                       da7219_volsw_locked_put),
        SOC_SINGLE("ToneGen Off Time", DA7219_TONE_GEN_OFF_PER,
                   DA7219_BEEP_OFF_PER_SHIFT, DA7219_BEEP_ON_OFF_MAX,
                   DA7219_NO_INVERT),

        /* Gain ramping */
        SOC_ENUM("Gain Ramp Rate", da7219_gain_ramp_rate),

        /* DAC High-Pass Filter */
        SOC_ENUM_EXT("DAC HPF Mode", da7219_dac_hpf_mode,
                     da7219_enum_locked_get, da7219_enum_locked_put),
        SOC_ENUM("DAC HPF Corner Audio", da7219_dac_audio_hpf_corner),
        SOC_ENUM("DAC HPF Corner Voice", da7219_dac_voice_hpf_corner),

        /* DAC 5-Band Equaliser */
        SOC_SINGLE_TLV("DAC EQ Band1 Volume", DA7219_DAC_FILTERS2,
                       DA7219_DAC_EQ_BAND1_SHIFT, DA7219_DAC_EQ_BAND_MAX,
                       DA7219_NO_INVERT, da7219_dac_eq_band_tlv),
        SOC_SINGLE_TLV("DAC EQ Band2 Volume", DA7219_DAC_FILTERS2,
                       DA7219_DAC_EQ_BAND2_SHIFT, DA7219_DAC_EQ_BAND_MAX,
                       DA7219_NO_INVERT, da7219_dac_eq_band_tlv),
        SOC_SINGLE_TLV("DAC EQ Band3 Volume", DA7219_DAC_FILTERS3,
                       DA7219_DAC_EQ_BAND3_SHIFT, DA7219_DAC_EQ_BAND_MAX,
                       DA7219_NO_INVERT, da7219_dac_eq_band_tlv),
        SOC_SINGLE_TLV("DAC EQ Band4 Volume", DA7219_DAC_FILTERS3,
                       DA7219_DAC_EQ_BAND4_SHIFT, DA7219_DAC_EQ_BAND_MAX,
                       DA7219_NO_INVERT, da7219_dac_eq_band_tlv),
        SOC_SINGLE_TLV("DAC EQ Band5 Volume", DA7219_DAC_FILTERS4,
                       DA7219_DAC_EQ_BAND5_SHIFT, DA7219_DAC_EQ_BAND_MAX,
                       DA7219_NO_INVERT, da7219_dac_eq_band_tlv),
        SOC_SINGLE_EXT("DAC EQ Switch", DA7219_DAC_FILTERS4,
                       DA7219_DAC_EQ_EN_SHIFT, DA7219_SWITCH_EN_MAX,
                       DA7219_NO_INVERT, da7219_volsw_locked_get,
                       da7219_volsw_locked_put),

        /* DAC Softmute */
        SOC_ENUM("DAC Soft Mute Rate", da7219_dac_softmute_rate),
        SOC_SINGLE_EXT("DAC Soft Mute Switch", DA7219_DAC_FILTERS5,
                       DA7219_DAC_SOFTMUTE_EN_SHIFT, DA7219_SWITCH_EN_MAX,
                       DA7219_NO_INVERT, da7219_volsw_locked_get,
                       da7219_volsw_locked_put),

        /* DAC Noise Gate */
        SOC_ENUM("DAC NG Setup Time", da7219_dac_ng_setup_time),
        SOC_ENUM("DAC NG Rampup Rate", da7219_dac_ng_rampup_rate),
        SOC_ENUM("DAC NG Rampdown Rate", da7219_dac_ng_rampdown_rate),
        SOC_SINGLE_TLV("DAC NG Off Threshold", DA7219_DAC_NG_OFF_THRESH,
                       DA7219_DAC_NG_OFF_THRESHOLD_SHIFT,
                       DA7219_DAC_NG_THRESHOLD_MAX, DA7219_NO_INVERT,
                       da7219_dac_ng_threshold_tlv),
        SOC_SINGLE_TLV("DAC NG On Threshold", DA7219_DAC_NG_ON_THRESH,
                       DA7219_DAC_NG_ON_THRESHOLD_SHIFT,
                       DA7219_DAC_NG_THRESHOLD_MAX, DA7219_NO_INVERT,
                       da7219_dac_ng_threshold_tlv),
        SOC_SINGLE("DAC NG Switch", DA7219_DAC_NG_CTRL, DA7219_DAC_NG_EN_SHIFT,
                   DA7219_SWITCH_EN_MAX, DA7219_NO_INVERT),

        /* DACs */
        SOC_DOUBLE_R_EXT_TLV("Playback Digital Volume", DA7219_DAC_L_GAIN,
                             DA7219_DAC_R_GAIN, DA7219_DAC_L_DIGITAL_GAIN_SHIFT,
                             DA7219_DAC_DIGITAL_GAIN_MAX, DA7219_NO_INVERT,
                             da7219_volsw_locked_get, da7219_volsw_locked_put,
                             da7219_dac_dig_gain_tlv),
        SOC_DOUBLE_R_EXT("Playback Digital Switch", DA7219_DAC_L_CTRL,
                         DA7219_DAC_R_CTRL, DA7219_DAC_L_MUTE_EN_SHIFT,
                         DA7219_SWITCH_EN_MAX, DA7219_INVERT,
                         da7219_volsw_locked_get, da7219_volsw_locked_put),
        SOC_DOUBLE_R("Playback Digital Gain Ramp Switch", DA7219_DAC_L_CTRL,
                     DA7219_DAC_R_CTRL, DA7219_DAC_L_RAMP_EN_SHIFT,
                     DA7219_SWITCH_EN_MAX, DA7219_NO_INVERT),

        /* CP */
        SOC_ENUM("Charge Pump Track Mode", da7219_cp_track_mode),
        SOC_SINGLE("Charge Pump Threshold", DA7219_CP_VOL_THRESHOLD1,
                   DA7219_CP_THRESH_VDD2_SHIFT, DA7219_CP_THRESH_VDD2_MAX,
                   DA7219_NO_INVERT),

        /* Headphones */
        SOC_DOUBLE_R_EXT_TLV("Headphone Volume", DA7219_HP_L_GAIN,
                             DA7219_HP_R_GAIN, DA7219_HP_L_AMP_GAIN_SHIFT,
                             DA7219_HP_AMP_GAIN_MAX, DA7219_NO_INVERT,
                             da7219_volsw_locked_get, da7219_volsw_locked_put,
                             da7219_hp_gain_tlv),
        SOC_DOUBLE_R_EXT("Headphone Switch", DA7219_HP_L_CTRL, DA7219_HP_R_CTRL,
                         DA7219_HP_L_AMP_MUTE_EN_SHIFT, DA7219_SWITCH_EN_MAX,
                         DA7219_INVERT, da7219_volsw_locked_get,
                         da7219_volsw_locked_put),
        SOC_DOUBLE_R("Headphone Gain Ramp Switch", DA7219_HP_L_CTRL,
                     DA7219_HP_R_CTRL, DA7219_HP_L_AMP_RAMP_EN_SHIFT,
                     DA7219_SWITCH_EN_MAX, DA7219_NO_INVERT),
        SOC_DOUBLE_R("Headphone ZC Gain Switch", DA7219_HP_L_CTRL,
                     DA7219_HP_R_CTRL, DA7219_HP_L_AMP_ZC_EN_SHIFT,
                     DA7219_SWITCH_EN_MAX, DA7219_NO_INVERT),
};


/*
 * DAPM Mux Controls
 */

static const char * const da7219_out_sel_txt[] = {
        "ADC", "Tone Generator", "DAIL", "DAIR"
};

static const struct soc_enum da7219_out_dail_sel =
        SOC_ENUM_SINGLE(DA7219_DIG_ROUTING_DAI,
                        DA7219_DAI_L_SRC_SHIFT,
                        DA7219_OUT_SRC_MAX,
                        da7219_out_sel_txt);

static const struct snd_kcontrol_new da7219_out_dail_sel_mux =
        SOC_DAPM_ENUM("Out DAIL Mux", da7219_out_dail_sel);

static const struct soc_enum da7219_out_dair_sel =
        SOC_ENUM_SINGLE(DA7219_DIG_ROUTING_DAI,
                        DA7219_DAI_R_SRC_SHIFT,
                        DA7219_OUT_SRC_MAX,
                        da7219_out_sel_txt);

static const struct snd_kcontrol_new da7219_out_dair_sel_mux =
        SOC_DAPM_ENUM("Out DAIR Mux", da7219_out_dair_sel);

static const struct soc_enum da7219_out_dacl_sel =
        SOC_ENUM_SINGLE(DA7219_DIG_ROUTING_DAC,
                        DA7219_DAC_L_SRC_SHIFT,
                        DA7219_OUT_SRC_MAX,
                        da7219_out_sel_txt);

static const struct snd_kcontrol_new da7219_out_dacl_sel_mux =
        SOC_DAPM_ENUM("Out DACL Mux", da7219_out_dacl_sel);

static const struct soc_enum da7219_out_dacr_sel =
        SOC_ENUM_SINGLE(DA7219_DIG_ROUTING_DAC,
                        DA7219_DAC_R_SRC_SHIFT,
                        DA7219_OUT_SRC_MAX,
                        da7219_out_sel_txt);

static const struct snd_kcontrol_new da7219_out_dacr_sel_mux =
        SOC_DAPM_ENUM("Out DACR Mux", da7219_out_dacr_sel);


/*
 * DAPM Mixer Controls
 */

static const struct snd_kcontrol_new da7219_mixin_controls[] = {
        SOC_DAPM_SINGLE("Mic Switch", DA7219_MIXIN_L_SELECT,
                        DA7219_MIXIN_L_MIX_SELECT_SHIFT,
                        DA7219_SWITCH_EN_MAX, DA7219_NO_INVERT),
};

static const struct snd_kcontrol_new da7219_mixout_l_controls[] = {
        SOC_DAPM_SINGLE("DACL Switch", DA7219_MIXOUT_L_SELECT,
                        DA7219_MIXOUT_L_MIX_SELECT_SHIFT,
                        DA7219_SWITCH_EN_MAX, DA7219_NO_INVERT),
};

static const struct snd_kcontrol_new da7219_mixout_r_controls[] = {
        SOC_DAPM_SINGLE("DACR Switch", DA7219_MIXOUT_R_SELECT,
                        DA7219_MIXOUT_R_MIX_SELECT_SHIFT,
                        DA7219_SWITCH_EN_MAX, DA7219_NO_INVERT),
};

#define DA7219_DMIX_ST_CTRLS(reg)                                       \
        SOC_DAPM_SINGLE("Out FilterL Switch", reg,                      \
                        DA7219_DMIX_ST_SRC_OUTFILT1L_SHIFT,             \
                        DA7219_SWITCH_EN_MAX, DA7219_NO_INVERT),        \
        SOC_DAPM_SINGLE("Out FilterR Switch", reg,                      \
                        DA7219_DMIX_ST_SRC_OUTFILT1R_SHIFT,             \
                        DA7219_SWITCH_EN_MAX, DA7219_NO_INVERT),        \
        SOC_DAPM_SINGLE("Sidetone Switch", reg,                         \
                        DA7219_DMIX_ST_SRC_SIDETONE_SHIFT,              \
                        DA7219_SWITCH_EN_MAX, DA7219_NO_INVERT)         \

static const struct snd_kcontrol_new da7219_st_out_filtl_mix_controls[] = {
        DA7219_DMIX_ST_CTRLS(DA7219_DROUTING_ST_OUTFILT_1L),
};

static const struct snd_kcontrol_new da7219_st_out_filtr_mix_controls[] = {
        DA7219_DMIX_ST_CTRLS(DA7219_DROUTING_ST_OUTFILT_1R),
};


/*
 * DAPM Events
 */

static int da7219_mic_pga_event(struct snd_soc_dapm_widget *w,
                                struct snd_kcontrol *kcontrol, int event)
{
        struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
        struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);

        switch (event) {
        case SND_SOC_DAPM_POST_PMU:
                if (da7219->micbias_on_event) {
                        /*
                         * Delay only for first capture after bias enabled to
                         * avoid possible DC offset related noise.
                         */
                        da7219->micbias_on_event = false;
                        msleep(da7219->mic_pga_delay);
                }
                break;
        default:
                break;
        }

        return 0;
}

static int da7219_dai_event(struct snd_soc_dapm_widget *w,
                            struct snd_kcontrol *kcontrol, int event)
{
        struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
        struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
        struct clk *bclk = da7219->dai_clks[DA7219_DAI_BCLK_IDX];
        u8 pll_ctrl, pll_status;
        int i = 0, ret;
        bool srm_lock = false;

        switch (event) {
        case SND_SOC_DAPM_PRE_PMU:
                if (da7219->master) {
                        /* Enable DAI clks for master mode */
                        if (bclk) {
                                ret = clk_prepare_enable(bclk);
                                if (ret) {
                                        dev_err(component->dev,
                                                "Failed to enable DAI clks\n");
                                        return ret;
                                }
                        } else {
                                snd_soc_component_update_bits(component,
                                                              DA7219_DAI_CLK_MODE,
                                                              DA7219_DAI_CLK_EN_MASK,
                                                              DA7219_DAI_CLK_EN_MASK);
                        }
                }

                /* PC synchronised to DAI */
                snd_soc_component_update_bits(component, DA7219_PC_COUNT,
                                    DA7219_PC_FREERUN_MASK, 0);

                /* Slave mode, if SRM not enabled no need for status checks */
                pll_ctrl = snd_soc_component_read(component, DA7219_PLL_CTRL);
                if ((pll_ctrl & DA7219_PLL_MODE_MASK) != DA7219_PLL_MODE_SRM)
                        return 0;

                /* Check SRM has locked */
                do {
                        pll_status = snd_soc_component_read(component, DA7219_PLL_SRM_STS);
                        if (pll_status & DA7219_PLL_SRM_STS_SRM_LOCK) {
                                srm_lock = true;
                        } else {
                                ++i;
                                msleep(50);
                        }
                } while ((i < DA7219_SRM_CHECK_RETRIES) && (!srm_lock));

                if (!srm_lock)
                        dev_warn(component->dev, "SRM failed to lock\n");

                return 0;
        case SND_SOC_DAPM_POST_PMD:
                /* PC free-running */
                snd_soc_component_update_bits(component, DA7219_PC_COUNT,
                                    DA7219_PC_FREERUN_MASK,
                                    DA7219_PC_FREERUN_MASK);

                /* Disable DAI clks if in master mode */
                if (da7219->master) {
                        if (bclk)
                                clk_disable_unprepare(bclk);
                        else
                                snd_soc_component_update_bits(component,
                                                              DA7219_DAI_CLK_MODE,
                                                              DA7219_DAI_CLK_EN_MASK,
                                                              0);
                }

                return 0;
        default:
                return -EINVAL;
        }
}

static int da7219_settling_event(struct snd_soc_dapm_widget *w,
                                 struct snd_kcontrol *kcontrol, int event)
{
        switch (event) {
        case SND_SOC_DAPM_POST_PMU:
        case SND_SOC_DAPM_POST_PMD:
                msleep(DA7219_SETTLING_DELAY);
                break;
        default:
                break;
        }

        return 0;
}

static int da7219_mixout_event(struct snd_soc_dapm_widget *w,
                               struct snd_kcontrol *kcontrol, int event)
{
        struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
        u8 hp_ctrl, min_gain_mask;

        switch (w->reg) {
        case DA7219_MIXOUT_L_CTRL:
                hp_ctrl = DA7219_HP_L_CTRL;
                min_gain_mask = DA7219_HP_L_AMP_MIN_GAIN_EN_MASK;
                break;
        case DA7219_MIXOUT_R_CTRL:
                hp_ctrl = DA7219_HP_R_CTRL;
                min_gain_mask = DA7219_HP_R_AMP_MIN_GAIN_EN_MASK;
                break;
        default:
                return -EINVAL;
        }

        switch (event) {
        case SND_SOC_DAPM_PRE_PMD:
                /* Enable minimum gain on HP to avoid pops */
                snd_soc_component_update_bits(component, hp_ctrl, min_gain_mask,
                                    min_gain_mask);

                msleep(DA7219_MIN_GAIN_DELAY);

                break;
        case SND_SOC_DAPM_POST_PMU:
                /* Remove minimum gain on HP */
                snd_soc_component_update_bits(component, hp_ctrl, min_gain_mask, 0);

                break;
        }

        return 0;
}

static int da7219_gain_ramp_event(struct snd_soc_dapm_widget *w,
                                  struct snd_kcontrol *kcontrol, int event)
{
        struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
        struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);

        switch (event) {
        case SND_SOC_DAPM_PRE_PMU:
        case SND_SOC_DAPM_PRE_PMD:
                /* Ensure nominal gain ramping for DAPM sequence */
                da7219->gain_ramp_ctrl =
                        snd_soc_component_read(component, DA7219_GAIN_RAMP_CTRL);
                snd_soc_component_write(component, DA7219_GAIN_RAMP_CTRL,
                              DA7219_GAIN_RAMP_RATE_NOMINAL);
                break;
        case SND_SOC_DAPM_POST_PMU:
        case SND_SOC_DAPM_POST_PMD:
                /* Restore previous gain ramp settings */
                snd_soc_component_write(component, DA7219_GAIN_RAMP_CTRL,
                              da7219->gain_ramp_ctrl);
                break;
        }

        return 0;
}


/*
 * DAPM Widgets
 */

static const struct snd_soc_dapm_widget da7219_dapm_widgets[] = {
        /* Input Supplies */
        SND_SOC_DAPM_SUPPLY("Mic Bias", DA7219_MICBIAS_CTRL,
                            DA7219_MICBIAS1_EN_SHIFT, DA7219_NO_INVERT,
                            NULL, 0),

        /* Inputs */
        SND_SOC_DAPM_INPUT("MIC"),

        /* Input PGAs */
        SND_SOC_DAPM_PGA_E("Mic PGA", DA7219_MIC_1_CTRL,
                           DA7219_MIC_1_AMP_EN_SHIFT, DA7219_NO_INVERT,
                           NULL, 0, da7219_mic_pga_event, SND_SOC_DAPM_POST_PMU),
        SND_SOC_DAPM_PGA_E("Mixin PGA", DA7219_MIXIN_L_CTRL,
                           DA7219_MIXIN_L_AMP_EN_SHIFT, DA7219_NO_INVERT,
                           NULL, 0, da7219_settling_event, SND_SOC_DAPM_POST_PMU),

        /* Input Filters */
        SND_SOC_DAPM_ADC("ADC", NULL, DA7219_ADC_L_CTRL, DA7219_ADC_L_EN_SHIFT,
                         DA7219_NO_INVERT),

        /* Tone Generator */
        SND_SOC_DAPM_SIGGEN("TONE"),
        SND_SOC_DAPM_PGA("Tone Generator", DA7219_TONE_GEN_CFG1,
                         DA7219_START_STOPN_SHIFT, DA7219_NO_INVERT, NULL, 0),

        /* Sidetone Input */
        SND_SOC_DAPM_ADC("Sidetone Filter", NULL, DA7219_SIDETONE_CTRL,
                         DA7219_SIDETONE_EN_SHIFT, DA7219_NO_INVERT),

        /* Input Mixer Supply */
        SND_SOC_DAPM_SUPPLY("Mixer In Supply", DA7219_MIXIN_L_CTRL,
                            DA7219_MIXIN_L_MIX_EN_SHIFT, DA7219_NO_INVERT,
                            NULL, 0),

        /* Input Mixer */
        SND_SOC_DAPM_MIXER("Mixer In", SND_SOC_NOPM, 0, 0,
                           da7219_mixin_controls,
                           ARRAY_SIZE(da7219_mixin_controls)),

        /* Input Muxes */
        SND_SOC_DAPM_MUX("Out DAIL Mux", SND_SOC_NOPM, 0, 0,
                         &da7219_out_dail_sel_mux),
        SND_SOC_DAPM_MUX("Out DAIR Mux", SND_SOC_NOPM, 0, 0,
                         &da7219_out_dair_sel_mux),

        /* DAI Supply */
        SND_SOC_DAPM_SUPPLY("DAI", DA7219_DAI_CTRL, DA7219_DAI_EN_SHIFT,
                            DA7219_NO_INVERT, da7219_dai_event,
                            SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),

        /* DAI */
        SND_SOC_DAPM_AIF_OUT("DAIOUT", "Capture", 0, DA7219_DAI_TDM_CTRL,
                             DA7219_DAI_OE_SHIFT, DA7219_NO_INVERT),
        SND_SOC_DAPM_AIF_IN("DAIIN", "Playback", 0, SND_SOC_NOPM, 0, 0),

        /* Output Muxes */
        SND_SOC_DAPM_MUX("Out DACL Mux", SND_SOC_NOPM, 0, 0,
                         &da7219_out_dacl_sel_mux),
        SND_SOC_DAPM_MUX("Out DACR Mux", SND_SOC_NOPM, 0, 0,
                         &da7219_out_dacr_sel_mux),

        /* Output Mixers */
        SND_SOC_DAPM_MIXER("Mixer Out FilterL", SND_SOC_NOPM, 0, 0,
                           da7219_mixout_l_controls,
                           ARRAY_SIZE(da7219_mixout_l_controls)),
        SND_SOC_DAPM_MIXER("Mixer Out FilterR", SND_SOC_NOPM, 0, 0,
                           da7219_mixout_r_controls,
                           ARRAY_SIZE(da7219_mixout_r_controls)),

        /* Sidetone Mixers */
        SND_SOC_DAPM_MIXER("ST Mixer Out FilterL", SND_SOC_NOPM, 0, 0,
                           da7219_st_out_filtl_mix_controls,
                           ARRAY_SIZE(da7219_st_out_filtl_mix_controls)),
        SND_SOC_DAPM_MIXER("ST Mixer Out FilterR", SND_SOC_NOPM, 0,
                           0, da7219_st_out_filtr_mix_controls,
                           ARRAY_SIZE(da7219_st_out_filtr_mix_controls)),

        /* DACs */
        SND_SOC_DAPM_DAC_E("DACL", NULL, DA7219_DAC_L_CTRL,
                           DA7219_DAC_L_EN_SHIFT, DA7219_NO_INVERT,
                           da7219_settling_event,
                           SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
        SND_SOC_DAPM_DAC_E("DACR", NULL, DA7219_DAC_R_CTRL,
                           DA7219_DAC_R_EN_SHIFT, DA7219_NO_INVERT,
                           da7219_settling_event,
                           SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),

        /* Output PGAs */
        SND_SOC_DAPM_PGA_E("Mixout Left PGA", DA7219_MIXOUT_L_CTRL,
                           DA7219_MIXOUT_L_AMP_EN_SHIFT, DA7219_NO_INVERT,
                           NULL, 0, da7219_mixout_event,
                           SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
        SND_SOC_DAPM_PGA_E("Mixout Right PGA", DA7219_MIXOUT_R_CTRL,
                           DA7219_MIXOUT_R_AMP_EN_SHIFT, DA7219_NO_INVERT,
                           NULL, 0, da7219_mixout_event,
                           SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
        SND_SOC_DAPM_SUPPLY_S("Headphone Left PGA", 1, DA7219_HP_L_CTRL,
                              DA7219_HP_L_AMP_EN_SHIFT, DA7219_NO_INVERT,
                              da7219_settling_event,
                              SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
        SND_SOC_DAPM_SUPPLY_S("Headphone Right PGA", 1, DA7219_HP_R_CTRL,
                              DA7219_HP_R_AMP_EN_SHIFT, DA7219_NO_INVERT,
                              da7219_settling_event,
                              SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),

        /* Output Supplies */
        SND_SOC_DAPM_SUPPLY_S("Charge Pump", 0, DA7219_CP_CTRL,
                              DA7219_CP_EN_SHIFT, DA7219_NO_INVERT,
                              da7219_settling_event,
                              SND_SOC_DAPM_POST_PMU),

        /* Outputs */
        SND_SOC_DAPM_OUTPUT("HPL"),
        SND_SOC_DAPM_OUTPUT("HPR"),

        /* Pre/Post Power */
        SND_SOC_DAPM_PRE("Pre Power Gain Ramp", da7219_gain_ramp_event),
        SND_SOC_DAPM_POST("Post Power Gain Ramp", da7219_gain_ramp_event),
};


/*
 * DAPM Mux Routes
 */

#define DA7219_OUT_DAI_MUX_ROUTES(name)                 \
        {name, "ADC", "Mixer In"},                      \
        {name, "Tone Generator", "Tone Generator"},     \
        {name, "DAIL", "DAIOUT"},                       \
        {name, "DAIR", "DAIOUT"}

#define DA7219_OUT_DAC_MUX_ROUTES(name)                 \
        {name, "ADC", "Mixer In"},                      \
        {name, "Tone Generator", "Tone Generator"},             \
        {name, "DAIL", "DAIIN"},                        \
        {name, "DAIR", "DAIIN"}

/*
 * DAPM Mixer Routes
 */

#define DA7219_DMIX_ST_ROUTES(name)                             \
        {name, "Out FilterL Switch", "Mixer Out FilterL"},      \
        {name, "Out FilterR Switch", "Mixer Out FilterR"},      \
        {name, "Sidetone Switch", "Sidetone Filter"}


/*
 * DAPM audio route definition
 */

static const struct snd_soc_dapm_route da7219_audio_map[] = {
        /* Input paths */
        {"MIC", NULL, "Mic Bias"},
        {"Mic PGA", NULL, "MIC"},
        {"Mixin PGA", NULL, "Mic PGA"},
        {"ADC", NULL, "Mixin PGA"},

        {"Mixer In", NULL, "Mixer In Supply"},
        {"Mixer In", "Mic Switch", "ADC"},

        {"Sidetone Filter", NULL, "Mixer In"},

        {"Tone Generator", NULL, "TONE"},

        DA7219_OUT_DAI_MUX_ROUTES("Out DAIL Mux"),
        DA7219_OUT_DAI_MUX_ROUTES("Out DAIR Mux"),

        {"DAIOUT", NULL, "Out DAIL Mux"},
        {"DAIOUT", NULL, "Out DAIR Mux"},
        {"DAIOUT", NULL, "DAI"},

        /* Output paths */
        {"DAIIN", NULL, "DAI"},

        DA7219_OUT_DAC_MUX_ROUTES("Out DACL Mux"),
        DA7219_OUT_DAC_MUX_ROUTES("Out DACR Mux"),

        {"Mixer Out FilterL", "DACL Switch", "Out DACL Mux"},
        {"Mixer Out FilterR", "DACR Switch", "Out DACR Mux"},

        DA7219_DMIX_ST_ROUTES("ST Mixer Out FilterL"),
        DA7219_DMIX_ST_ROUTES("ST Mixer Out FilterR"),

        {"DACL", NULL, "ST Mixer Out FilterL"},
        {"DACR", NULL, "ST Mixer Out FilterR"},

        {"Mixout Left PGA", NULL, "DACL"},
        {"Mixout Right PGA", NULL, "DACR"},

        {"HPL", NULL, "Mixout Left PGA"},
        {"HPR", NULL, "Mixout Right PGA"},

        {"HPL", NULL, "Headphone Left PGA"},
        {"HPR", NULL, "Headphone Right PGA"},

        {"HPL", NULL, "Charge Pump"},
        {"HPR", NULL, "Charge Pump"},
};


/*
 * DAI operations
 */

static int da7219_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 da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
        int ret = 0;

        mutex_lock(&da7219->pll_lock);

        if ((da7219->clk_src == clk_id) && (da7219->mclk_rate == freq)) {
                mutex_unlock(&da7219->pll_lock);
                return 0;
        }

        if ((freq < 2000000) || (freq > 54000000)) {
                mutex_unlock(&da7219->pll_lock);
                dev_err(codec_dai->dev, "Unsupported MCLK value %d\n",
                        freq);
                return -EINVAL;
        }

        switch (clk_id) {
        case DA7219_CLKSRC_MCLK_SQR:
                snd_soc_component_update_bits(component, DA7219_PLL_CTRL,
                                    DA7219_PLL_MCLK_SQR_EN_MASK,
                                    DA7219_PLL_MCLK_SQR_EN_MASK);
                break;
        case DA7219_CLKSRC_MCLK:
                snd_soc_component_update_bits(component, DA7219_PLL_CTRL,
                                    DA7219_PLL_MCLK_SQR_EN_MASK, 0);
                break;
        default:
                dev_err(codec_dai->dev, "Unknown clock source %d\n", clk_id);
                mutex_unlock(&da7219->pll_lock);
                return -EINVAL;
        }

        da7219->clk_src = clk_id;

        if (da7219->mclk) {
                freq = clk_round_rate(da7219->mclk, freq);
                ret = clk_set_rate(da7219->mclk, freq);
                if (ret) {
                        dev_err(codec_dai->dev, "Failed to set clock rate %d\n",
                                freq);
                        mutex_unlock(&da7219->pll_lock);
                        return ret;
                }
        }

        da7219->mclk_rate = freq;

        mutex_unlock(&da7219->pll_lock);

        return 0;
}

int da7219_set_pll(struct snd_soc_component *component, int source, unsigned int fout)
{
        struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);

        u8 pll_ctrl, indiv_bits, indiv;
        u8 pll_frac_top, pll_frac_bot, pll_integer;
        u32 freq_ref;
        u64 frac_div;

        /* Verify 2MHz - 54MHz MCLK provided, and set input divider */
        if (da7219->mclk_rate < 2000000) {
                dev_err(component->dev, "PLL input clock %d below valid range\n",
                        da7219->mclk_rate);
                return -EINVAL;
        } else if (da7219->mclk_rate <= 4500000) {
                indiv_bits = DA7219_PLL_INDIV_2_TO_4_5_MHZ;
                indiv = DA7219_PLL_INDIV_2_TO_4_5_MHZ_VAL;
        } else if (da7219->mclk_rate <= 9000000) {
                indiv_bits = DA7219_PLL_INDIV_4_5_TO_9_MHZ;
                indiv = DA7219_PLL_INDIV_4_5_TO_9_MHZ_VAL;
        } else if (da7219->mclk_rate <= 18000000) {
                indiv_bits = DA7219_PLL_INDIV_9_TO_18_MHZ;
                indiv = DA7219_PLL_INDIV_9_TO_18_MHZ_VAL;
        } else if (da7219->mclk_rate <= 36000000) {
                indiv_bits = DA7219_PLL_INDIV_18_TO_36_MHZ;
                indiv = DA7219_PLL_INDIV_18_TO_36_MHZ_VAL;
        } else if (da7219->mclk_rate <= 54000000) {
                indiv_bits = DA7219_PLL_INDIV_36_TO_54_MHZ;
                indiv = DA7219_PLL_INDIV_36_TO_54_MHZ_VAL;
        } else {
                dev_err(component->dev, "PLL input clock %d above valid range\n",
                        da7219->mclk_rate);
                return -EINVAL;
        }
        freq_ref = (da7219->mclk_rate / indiv);
        pll_ctrl = indiv_bits;

        /* Configure PLL */
        switch (source) {
        case DA7219_SYSCLK_MCLK:
                pll_ctrl |= DA7219_PLL_MODE_BYPASS;
                snd_soc_component_update_bits(component, DA7219_PLL_CTRL,
                                    DA7219_PLL_INDIV_MASK |
                                    DA7219_PLL_MODE_MASK, pll_ctrl);
                return 0;
        case DA7219_SYSCLK_PLL:
                pll_ctrl |= DA7219_PLL_MODE_NORMAL;
                break;
        case DA7219_SYSCLK_PLL_SRM:
                pll_ctrl |= DA7219_PLL_MODE_SRM;
                break;
        default:
                dev_err(component->dev, "Invalid PLL config\n");
                return -EINVAL;
        }

        /* Calculate dividers for PLL */
        pll_integer = fout / freq_ref;
        frac_div = (u64)(fout % freq_ref) * 8192ULL;
        do_div(frac_div, freq_ref);
        pll_frac_top = (frac_div >> DA7219_BYTE_SHIFT) & DA7219_BYTE_MASK;
        pll_frac_bot = (frac_div) & DA7219_BYTE_MASK;

        /* Write PLL config & dividers */
        snd_soc_component_write(component, DA7219_PLL_FRAC_TOP, pll_frac_top);
        snd_soc_component_write(component, DA7219_PLL_FRAC_BOT, pll_frac_bot);
        snd_soc_component_write(component, DA7219_PLL_INTEGER, pll_integer);
        snd_soc_component_update_bits(component, DA7219_PLL_CTRL,
                            DA7219_PLL_INDIV_MASK | DA7219_PLL_MODE_MASK,
                            pll_ctrl);

        return 0;
}

static int da7219_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 da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
        int ret;

        mutex_lock(&da7219->pll_lock);
        ret = da7219_set_pll(component, source, fout);
        mutex_unlock(&da7219->pll_lock);

        return ret;
}

static int da7219_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
{
        struct snd_soc_component *component = codec_dai->component;
        struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
        u8 dai_clk_mode = 0, dai_ctrl = 0;

        switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
        case SND_SOC_DAIFMT_CBP_CFP:
                da7219->master = true;
                break;
        case SND_SOC_DAIFMT_CBC_CFC:
                da7219->master = false;
                break;
        default:
                return -EINVAL;
        }

        switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
        case SND_SOC_DAIFMT_I2S:
        case SND_SOC_DAIFMT_LEFT_J:
        case SND_SOC_DAIFMT_RIGHT_J:
                switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
                case SND_SOC_DAIFMT_NB_NF:
                        break;
                case SND_SOC_DAIFMT_NB_IF:
                        dai_clk_mode |= DA7219_DAI_WCLK_POL_INV;
                        break;
                case SND_SOC_DAIFMT_IB_NF:
                        dai_clk_mode |= DA7219_DAI_CLK_POL_INV;
                        break;
                case SND_SOC_DAIFMT_IB_IF:
                        dai_clk_mode |= DA7219_DAI_WCLK_POL_INV |
                                        DA7219_DAI_CLK_POL_INV;
                        break;
                default:
                        return -EINVAL;
                }
                break;
        case SND_SOC_DAIFMT_DSP_B:
                switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
                case SND_SOC_DAIFMT_NB_NF:
                        dai_clk_mode |= DA7219_DAI_CLK_POL_INV;
                        break;
                case SND_SOC_DAIFMT_NB_IF:
                        dai_clk_mode |= DA7219_DAI_WCLK_POL_INV |
                                        DA7219_DAI_CLK_POL_INV;
                        break;
                case SND_SOC_DAIFMT_IB_NF:
                        break;
                case SND_SOC_DAIFMT_IB_IF:
                        dai_clk_mode |= DA7219_DAI_WCLK_POL_INV;
                        break;
                default:
                        return -EINVAL;
                }
                break;
        default:
                return -EINVAL;
        }

        switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
        case SND_SOC_DAIFMT_I2S:
                dai_ctrl |= DA7219_DAI_FORMAT_I2S;
                break;
        case SND_SOC_DAIFMT_LEFT_J:
                dai_ctrl |= DA7219_DAI_FORMAT_LEFT_J;
                break;
        case SND_SOC_DAIFMT_RIGHT_J:
                dai_ctrl |= DA7219_DAI_FORMAT_RIGHT_J;
                break;
        case SND_SOC_DAIFMT_DSP_B:
                dai_ctrl |= DA7219_DAI_FORMAT_DSP;
                break;
        default:
                return -EINVAL;
        }

        snd_soc_component_update_bits(component, DA7219_DAI_CLK_MODE,
                            DA7219_DAI_CLK_POL_MASK | DA7219_DAI_WCLK_POL_MASK,
                            dai_clk_mode);
        snd_soc_component_update_bits(component, DA7219_DAI_CTRL, DA7219_DAI_FORMAT_MASK,
                            dai_ctrl);

        return 0;
}

static int da7219_set_bclks_per_wclk(struct snd_soc_component *component,
                                     unsigned long factor)
{
        u8 bclks_per_wclk;

        switch (factor) {
        case 32:
                bclks_per_wclk = DA7219_DAI_BCLKS_PER_WCLK_32;
                break;
        case 64:
                bclks_per_wclk = DA7219_DAI_BCLKS_PER_WCLK_64;
                break;
        case 128:
                bclks_per_wclk = DA7219_DAI_BCLKS_PER_WCLK_128;
                break;
        case 256:
                bclks_per_wclk = DA7219_DAI_BCLKS_PER_WCLK_256;
                break;
        default:
                return -EINVAL;
        }

        snd_soc_component_update_bits(component, DA7219_DAI_CLK_MODE,
                                      DA7219_DAI_BCLKS_PER_WCLK_MASK,
                                      bclks_per_wclk);

        return 0;
}

static int da7219_set_dai_tdm_slot(struct snd_soc_dai *dai,
                                   unsigned int tx_mask, unsigned int rx_mask,
                                   int slots, int slot_width)
{
        struct snd_soc_component *component = dai->component;
        struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
        struct clk *wclk = da7219->dai_clks[DA7219_DAI_WCLK_IDX];
        struct clk *bclk = da7219->dai_clks[DA7219_DAI_BCLK_IDX];
        unsigned int ch_mask;
        unsigned long sr, bclk_rate;
        u8 slot_offset;
        u16 offset;
        __le16 dai_offset;
        u32 frame_size;
        int ret;

        /* No channels enabled so disable TDM */
        if (!tx_mask) {
                snd_soc_component_update_bits(component, DA7219_DAI_TDM_CTRL,
                                    DA7219_DAI_TDM_CH_EN_MASK |
                                    DA7219_DAI_TDM_MODE_EN_MASK, 0);
                da7219->tdm_en = false;
                return 0;
        }

        /* Check we have valid slots */
        slot_offset = ffs(tx_mask) - 1;
        ch_mask = (tx_mask >> slot_offset);
        if (fls(ch_mask) > DA7219_DAI_TDM_MAX_SLOTS) {
                dev_err(component->dev,
                        "Invalid number of slots, max = %d\n",
                        DA7219_DAI_TDM_MAX_SLOTS);
                return -EINVAL;
        }

        /*
         * Ensure we have a valid offset into the frame, based on slot width
         * and slot offset of first slot we're interested in.
         */
        offset = slot_offset * slot_width;
        if (offset > DA7219_DAI_OFFSET_MAX) {
                dev_err(component->dev, "Invalid frame offset %d\n", offset);
                return -EINVAL;
        }

        /*
         * If we're master, calculate & validate frame size based on slot info
         * provided as we have a limited set of rates available.
         */
        if (da7219->master) {
                frame_size = slots * slot_width;

                if (bclk) {
                        sr = clk_get_rate(wclk);
                        bclk_rate = sr * frame_size;
                        ret = clk_set_rate(bclk, bclk_rate);
                        if (ret) {
                                dev_err(component->dev,
                                        "Failed to set TDM BCLK rate %lu: %d\n",
                                        bclk_rate, ret);
                                return ret;
                        }
                } else {
                        ret = da7219_set_bclks_per_wclk(component, frame_size);
                        if (ret) {
                                dev_err(component->dev,
                                        "Failed to set TDM BCLKs per WCLK %d: %d\n",
                                        frame_size, ret);
                                return ret;
                        }
                }
        }

        dai_offset = cpu_to_le16(offset);
        regmap_bulk_write(da7219->regmap, DA7219_DAI_OFFSET_LOWER,
                          &dai_offset, sizeof(dai_offset));

        snd_soc_component_update_bits(component, DA7219_DAI_TDM_CTRL,
                            DA7219_DAI_TDM_CH_EN_MASK |
                            DA7219_DAI_TDM_MODE_EN_MASK,
                            (ch_mask << DA7219_DAI_TDM_CH_EN_SHIFT) |
                            DA7219_DAI_TDM_MODE_EN_MASK);

        da7219->tdm_en = true;

        return 0;
}

static int da7219_set_sr(struct snd_soc_component *component,
                         unsigned long rate)
{
        u8 fs;

        switch (rate) {
        case 8000:
                fs = DA7219_SR_8000;
                break;
        case 11025:
                fs = DA7219_SR_11025;
                break;
        case 12000:
                fs = DA7219_SR_12000;
                break;
        case 16000:
                fs = DA7219_SR_16000;
                break;
        case 22050:
                fs = DA7219_SR_22050;
                break;
        case 24000:
                fs = DA7219_SR_24000;
                break;
        case 32000:
                fs = DA7219_SR_32000;
                break;
        case 44100:
                fs = DA7219_SR_44100;
                break;
        case 48000:
                fs = DA7219_SR_48000;
                break;
        case 88200:
                fs = DA7219_SR_88200;
                break;
        case 96000:
                fs = DA7219_SR_96000;
                break;
        default:
                return -EINVAL;
        }

        snd_soc_component_write(component, DA7219_SR, fs);

        return 0;
}

static int da7219_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 da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
        struct clk *wclk = da7219->dai_clks[DA7219_DAI_WCLK_IDX];
        struct clk *bclk = da7219->dai_clks[DA7219_DAI_BCLK_IDX];
        u8 dai_ctrl = 0;
        unsigned int channels;
        unsigned long sr, bclk_rate;
        int word_len = params_width(params);
        int frame_size, ret;

        switch (word_len) {
        case 16:
                dai_ctrl |= DA7219_DAI_WORD_LENGTH_S16_LE;
                break;
        case 20:
                dai_ctrl |= DA7219_DAI_WORD_LENGTH_S20_LE;
                break;
        case 24:
                dai_ctrl |= DA7219_DAI_WORD_LENGTH_S24_LE;
                break;
        case 32:
                dai_ctrl |= DA7219_DAI_WORD_LENGTH_S32_LE;
                break;
        default:
                return -EINVAL;
        }

        channels = params_channels(params);
        if ((channels < 1) || (channels > DA7219_DAI_CH_NUM_MAX)) {
                dev_err(component->dev,
                        "Invalid number of channels, only 1 to %d supported\n",
                        DA7219_DAI_CH_NUM_MAX);
                return -EINVAL;
        }
        dai_ctrl |= channels << DA7219_DAI_CH_NUM_SHIFT;

        sr = params_rate(params);
        if (da7219->master && wclk) {
                ret = clk_set_rate(wclk, sr);
                if (ret) {
                        dev_err(component->dev,
                                "Failed to set WCLK SR %lu: %d\n", sr, ret);
                        return ret;
                }
        } else {
                ret = da7219_set_sr(component, sr);
                if (ret) {
                        dev_err(component->dev,
                                "Failed to set SR %lu: %d\n", sr, ret);
                        return ret;
                }
        }

        /*
         * If we're master, then we have a limited set of BCLK rates we
         * support. For slave mode this isn't the case and the codec can detect
         * the BCLK rate automatically.
         */
        if (da7219->master && !da7219->tdm_en) {
                if ((word_len * DA7219_DAI_CH_NUM_MAX) <= 32)
                        frame_size = 32;
                else
                        frame_size = 64;

                if (bclk) {
                        bclk_rate = frame_size * sr;
                        /*
                         * Rounding the rate here avoids failure trying to set a
                         * new rate on an already enabled bclk. In that
                         * instance this will just set the same rate as is
                         * currently in use, and so should continue without
                         * problem, as long as the BCLK rate is suitable for the
                         * desired frame size.
                         */
                        bclk_rate = clk_round_rate(bclk, bclk_rate);
                        if ((bclk_rate / sr) < frame_size) {
                                dev_err(component->dev,
                                        "BCLK rate mismatch against frame size");
                                return -EINVAL;
                        }

                        ret = clk_set_rate(bclk, bclk_rate);
                        if (ret) {
                                dev_err(component->dev,
                                        "Failed to set BCLK rate %lu: %d\n",
                                        bclk_rate, ret);
                                return ret;
                        }
                } else {
                        ret = da7219_set_bclks_per_wclk(component, frame_size);
                        if (ret) {
                                dev_err(component->dev,
                                        "Failed to set BCLKs per WCLK %d: %d\n",
                                        frame_size, ret);
                                return ret;
                        }
                }
        }

        snd_soc_component_update_bits(component, DA7219_DAI_CTRL,
                            DA7219_DAI_WORD_LENGTH_MASK |
                            DA7219_DAI_CH_NUM_MASK,
                            dai_ctrl);

        return 0;
}

static const struct snd_soc_dai_ops da7219_dai_ops = {
        .hw_params      = da7219_hw_params,
        .set_sysclk     = da7219_set_dai_sysclk,
        .set_pll        = da7219_set_dai_pll,
        .set_fmt        = da7219_set_dai_fmt,
        .set_tdm_slot   = da7219_set_dai_tdm_slot,
};

#define DA7219_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
                        SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)

#define DA7219_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
                      SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\
                      SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |\
                      SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 |\
                      SNDRV_PCM_RATE_96000)

static struct snd_soc_dai_driver da7219_dai = {
        .name = "da7219-hifi",
        .playback = {
                .stream_name = "Playback",
                .channels_min = 1,
                .channels_max = DA7219_DAI_CH_NUM_MAX,
                .rates = DA7219_RATES,
                .formats = DA7219_FORMATS,
        },
        .capture = {
                .stream_name = "Capture",
                .channels_min = 1,
                .channels_max = DA7219_DAI_CH_NUM_MAX,
                .rates = DA7219_RATES,
                .formats = DA7219_FORMATS,
        },
        .ops = &da7219_dai_ops,
        .symmetric_rate = 1,
        .symmetric_channels = 1,
        .symmetric_sample_bits = 1,
};


/*
 * DT/ACPI
 */

#ifdef CONFIG_OF
static const struct of_device_id da7219_of_match[] = {
        { .compatible = "dlg,da7219", },
        { }
};
MODULE_DEVICE_TABLE(of, da7219_of_match);
#endif

#ifdef CONFIG_ACPI
static const struct acpi_device_id da7219_acpi_match[] = {
        { .id = "DLGS7219", },
        { }
};
MODULE_DEVICE_TABLE(acpi, da7219_acpi_match);
#endif

static enum da7219_micbias_voltage
        da7219_fw_micbias_lvl(struct device *dev, u32 val)
{
        switch (val) {
        case 1600:
                return DA7219_MICBIAS_1_6V;
        case 1800:
                return DA7219_MICBIAS_1_8V;
        case 2000:
                return DA7219_MICBIAS_2_0V;
        case 2200:
                return DA7219_MICBIAS_2_2V;
        case 2400:
                return DA7219_MICBIAS_2_4V;
        case 2600:
                return DA7219_MICBIAS_2_6V;
        default:
                dev_warn(dev, "Invalid micbias level");
                return DA7219_MICBIAS_2_2V;
        }
}

static enum da7219_mic_amp_in_sel
        da7219_fw_mic_amp_in_sel(struct device *dev, const char *str)
{
        if (!strcmp(str, "diff")) {
                return DA7219_MIC_AMP_IN_SEL_DIFF;
        } else if (!strcmp(str, "se_p")) {
                return DA7219_MIC_AMP_IN_SEL_SE_P;
        } else if (!strcmp(str, "se_n")) {
                return DA7219_MIC_AMP_IN_SEL_SE_N;
        } else {
                dev_warn(dev, "Invalid mic input type selection");
                return DA7219_MIC_AMP_IN_SEL_DIFF;
        }
}

static struct da7219_pdata *da7219_fw_to_pdata(struct device *dev)
{
        struct da7219_pdata *pdata;
        const char *of_str;
        u32 of_val32;

        pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
        if (!pdata)
                return NULL;

        pdata->wakeup_source = device_property_read_bool(dev, "wakeup-source");

        pdata->dai_clk_names[DA7219_DAI_WCLK_IDX] = "da7219-dai-wclk";
        pdata->dai_clk_names[DA7219_DAI_BCLK_IDX] = "da7219-dai-bclk";
        if (device_property_read_string_array(dev, "clock-output-names",
                                              pdata->dai_clk_names,
                                              DA7219_DAI_NUM_CLKS) < 0)
                dev_warn(dev, "Using default DAI clk names: %s, %s\n",
                         pdata->dai_clk_names[DA7219_DAI_WCLK_IDX],
                         pdata->dai_clk_names[DA7219_DAI_BCLK_IDX]);

        if (device_property_read_u32(dev, "dlg,micbias-lvl", &of_val32) >= 0)
                pdata->micbias_lvl = da7219_fw_micbias_lvl(dev, of_val32);
        else
                pdata->micbias_lvl = DA7219_MICBIAS_2_2V;

        if (!device_property_read_string(dev, "dlg,mic-amp-in-sel", &of_str))
                pdata->mic_amp_in_sel = da7219_fw_mic_amp_in_sel(dev, of_str);
        else
                pdata->mic_amp_in_sel = DA7219_MIC_AMP_IN_SEL_DIFF;

        return pdata;
}


/*
 * Codec driver functions
 */

static int da7219_set_bias_level(struct snd_soc_component *component,
                                 enum snd_soc_bias_level level)
{
        struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
        struct snd_soc_dapm_context *dapm = snd_soc_component_to_dapm(component);
        int ret;

        switch (level) {
        case SND_SOC_BIAS_ON:
                break;
        case SND_SOC_BIAS_PREPARE:
                /* Enable MCLK for transition to ON state */
                if (snd_soc_dapm_get_bias_level(dapm) == SND_SOC_BIAS_STANDBY) {
                        if (da7219->mclk) {
                                ret = clk_prepare_enable(da7219->mclk);
                                if (ret) {
                                        dev_err(component->dev,
                                                "Failed to enable mclk\n");
                                        return ret;
                                }
                        }
                }

                break;
        case SND_SOC_BIAS_STANDBY:
                if (snd_soc_dapm_get_bias_level(dapm) == SND_SOC_BIAS_OFF)
                        /* Master bias */
                        snd_soc_component_update_bits(component, DA7219_REFERENCES,
                                            DA7219_BIAS_EN_MASK,
                                            DA7219_BIAS_EN_MASK);

                if (snd_soc_dapm_get_bias_level(dapm) == SND_SOC_BIAS_PREPARE) {
                        /* Remove MCLK */
                        if (da7219->mclk)
                                clk_disable_unprepare(da7219->mclk);
                }
                break;
        case SND_SOC_BIAS_OFF:
                /* Only disable master bias if we're not a wake-up source */
                if (!da7219->wakeup_source)
                        snd_soc_component_update_bits(component, DA7219_REFERENCES,
                                            DA7219_BIAS_EN_MASK, 0);

                break;
        }

        return 0;
}

static const char *da7219_supply_names[DA7219_NUM_SUPPLIES] = {
        [DA7219_SUPPLY_VDD] = "VDD",
        [DA7219_SUPPLY_VDDMIC] = "VDDMIC",
        [DA7219_SUPPLY_VDDIO] = "VDDIO",
};

static int da7219_handle_supplies(struct snd_soc_component *component,
                                  u8 *io_voltage_lvl)
{
        struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
        struct regulator *vddio;
        int i, ret;

        /* Get required supplies */
        for (i = 0; i < DA7219_NUM_SUPPLIES; ++i)
                da7219->supplies[i].supply = da7219_supply_names[i];

        ret = regulator_bulk_get(component->dev, DA7219_NUM_SUPPLIES,
                                 da7219->supplies);
        if (ret) {
                dev_err(component->dev, "Failed to get supplies");
                return ret;
        }

        /* Default to upper range */
        *io_voltage_lvl = DA7219_IO_VOLTAGE_LEVEL_2_5V_3_6V;

        /* Determine VDDIO voltage provided */
        vddio = da7219->supplies[DA7219_SUPPLY_VDDIO].consumer;
        ret = regulator_get_voltage(vddio);
        if (ret < 1200000)
                dev_warn(component->dev, "Invalid VDDIO voltage\n");
        else if (ret < 2800000)
                *io_voltage_lvl = DA7219_IO_VOLTAGE_LEVEL_1_2V_2_8V;

        /* Enable main supplies */
        ret = regulator_bulk_enable(DA7219_NUM_SUPPLIES, da7219->supplies);
        if (ret) {
                dev_err(component->dev, "Failed to enable supplies");
                regulator_bulk_free(DA7219_NUM_SUPPLIES, da7219->supplies);
                return ret;
        }

        return 0;
}

#ifdef CONFIG_COMMON_CLK
static int da7219_wclk_prepare(struct clk_hw *hw)
{
        struct da7219_priv *da7219 =
                container_of(hw, struct da7219_priv,
                             dai_clks_hw[DA7219_DAI_WCLK_IDX]);
        struct snd_soc_component *component = da7219->component;

        if (!da7219->master)
                return -EINVAL;

        snd_soc_component_update_bits(component, DA7219_DAI_CLK_MODE,
                                      DA7219_DAI_CLK_EN_MASK,
                                      DA7219_DAI_CLK_EN_MASK);

        return 0;
}

static void da7219_wclk_unprepare(struct clk_hw *hw)
{
        struct da7219_priv *da7219 =
                container_of(hw, struct da7219_priv,
                             dai_clks_hw[DA7219_DAI_WCLK_IDX]);
        struct snd_soc_component *component = da7219->component;

        if (!da7219->master)
                return;

        snd_soc_component_update_bits(component, DA7219_DAI_CLK_MODE,
                                      DA7219_DAI_CLK_EN_MASK, 0);
}

static int da7219_wclk_is_prepared(struct clk_hw *hw)
{
        struct da7219_priv *da7219 =
                container_of(hw, struct da7219_priv,
                             dai_clks_hw[DA7219_DAI_WCLK_IDX]);
        struct snd_soc_component *component = da7219->component;
        u8 clk_reg;

        if (!da7219->master)
                return -EINVAL;

        clk_reg = snd_soc_component_read(component, DA7219_DAI_CLK_MODE);

        return !!(clk_reg & DA7219_DAI_CLK_EN_MASK);
}

static unsigned long da7219_wclk_recalc_rate(struct clk_hw *hw,
                                             unsigned long parent_rate)
{
        struct da7219_priv *da7219 =
                container_of(hw, struct da7219_priv,
                             dai_clks_hw[DA7219_DAI_WCLK_IDX]);
        struct snd_soc_component *component = da7219->component;
        u8 fs = snd_soc_component_read(component, DA7219_SR);

        switch (fs & DA7219_SR_MASK) {
        case DA7219_SR_8000:
                return 8000;
        case DA7219_SR_11025:
                return 11025;
        case DA7219_SR_12000:
                return 12000;
        case DA7219_SR_16000:
                return 16000;
        case DA7219_SR_22050:
                return 22050;
        case DA7219_SR_24000:
                return 24000;
        case DA7219_SR_32000:
                return 32000;
        case DA7219_SR_44100:
                return 44100;
        case DA7219_SR_48000:
                return 48000;
        case DA7219_SR_88200:
                return 88200;
        case DA7219_SR_96000:
                return 96000;
        default:
                return 0;
        }
}

static int da7219_wclk_determine_rate(struct clk_hw *hw,
                                      struct clk_rate_request *req)
{
        struct da7219_priv *da7219 =
                container_of(hw, struct da7219_priv,
                             dai_clks_hw[DA7219_DAI_WCLK_IDX]);

        if (!da7219->master)
                return -EINVAL;

        if (req->rate < 11025)
                req->rate = 8000;
        else if (req->rate < 12000)
                req->rate = 11025;
        else if (req->rate < 16000)
                req->rate = 12000;
        else if (req->rate < 22050)
                req->rate = 16000;
        else if (req->rate < 24000)
                req->rate = 22050;
        else if (req->rate < 32000)
                req->rate = 24000;
        else if (req->rate < 44100)
                req->rate = 32000;
        else if (req->rate < 48000)
                req->rate = 44100;
        else if (req->rate < 88200)
                req->rate = 48000;
        else if (req->rate < 96000)
                req->rate = 88200;
        else
                req->rate = 96000;

        return 0;
}

static int da7219_wclk_set_rate(struct clk_hw *hw, unsigned long rate,
                                unsigned long parent_rate)
{
        struct da7219_priv *da7219 =
                container_of(hw, struct da7219_priv,
                             dai_clks_hw[DA7219_DAI_WCLK_IDX]);
        struct snd_soc_component *component = da7219->component;

        if (!da7219->master)
                return -EINVAL;

        return da7219_set_sr(component, rate);
}

static unsigned long da7219_bclk_recalc_rate(struct clk_hw *hw,
                                             unsigned long parent_rate)
{
        struct da7219_priv *da7219 =
                container_of(hw, struct da7219_priv,
                             dai_clks_hw[DA7219_DAI_BCLK_IDX]);
        struct snd_soc_component *component = da7219->component;
        u8 bclks_per_wclk = snd_soc_component_read(component,
                                                     DA7219_DAI_CLK_MODE);

        switch (bclks_per_wclk & DA7219_DAI_BCLKS_PER_WCLK_MASK) {
        case DA7219_DAI_BCLKS_PER_WCLK_32:
                return parent_rate * 32;
        case DA7219_DAI_BCLKS_PER_WCLK_64:
                return parent_rate * 64;
        case DA7219_DAI_BCLKS_PER_WCLK_128:
                return parent_rate * 128;
        case DA7219_DAI_BCLKS_PER_WCLK_256:
                return parent_rate * 256;
        default:
                return 0;
        }
}

static unsigned long da7219_bclk_get_factor(unsigned long rate,
                                            unsigned long parent_rate)
{
        unsigned long factor;

        factor = rate / parent_rate;
        if (factor < 64)
                return 32;
        else if (factor < 128)
                return 64;
        else if (factor < 256)
                return 128;
        else
                return 256;
}

static int da7219_bclk_determine_rate(struct clk_hw *hw,
                                      struct clk_rate_request *req)
{
        struct da7219_priv *da7219 =
                container_of(hw, struct da7219_priv,
                             dai_clks_hw[DA7219_DAI_BCLK_IDX]);
        unsigned long factor;

        if (!req->best_parent_rate || !da7219->master)
                return -EINVAL;

        /*
         * We don't allow changing the parent rate as some BCLK rates can be
         * derived from multiple parent WCLK rates (BCLK rates are set as a
         * multiplier of WCLK in HW). We just do some rounding down based on the
         * parent WCLK rate set and find the appropriate multiplier of BCLK to
         * get the rounded down BCLK value.
         */
        factor = da7219_bclk_get_factor(req->rate, req->best_parent_rate);

        req->rate = req->best_parent_rate * factor;

        return 0;
}

static int da7219_bclk_set_rate(struct clk_hw *hw, unsigned long rate,
                                unsigned long parent_rate)
{
        struct da7219_priv *da7219 =
                container_of(hw, struct da7219_priv,
                             dai_clks_hw[DA7219_DAI_BCLK_IDX]);
        struct snd_soc_component *component = da7219->component;
        unsigned long factor;

        if (!da7219->master)
                return -EINVAL;

        factor = da7219_bclk_get_factor(rate, parent_rate);

        return da7219_set_bclks_per_wclk(component, factor);
}

static const struct clk_ops da7219_dai_clk_ops[DA7219_DAI_NUM_CLKS] = {
        [DA7219_DAI_WCLK_IDX] = {
                .prepare = da7219_wclk_prepare,
                .unprepare = da7219_wclk_unprepare,
                .is_prepared = da7219_wclk_is_prepared,
                .recalc_rate = da7219_wclk_recalc_rate,
                .determine_rate = da7219_wclk_determine_rate,
                .set_rate = da7219_wclk_set_rate,
        },
        [DA7219_DAI_BCLK_IDX] = {
                .recalc_rate = da7219_bclk_recalc_rate,
                .determine_rate = da7219_bclk_determine_rate,
                .set_rate = da7219_bclk_set_rate,
        },
};

static int da7219_register_dai_clks(struct snd_soc_component *component)
{
        struct device *dev = component->dev;
        struct device_node *np = dev->of_node;
        struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
        struct da7219_pdata *pdata = da7219->pdata;
        const char *parent_name;
        struct clk_hw_onecell_data *clk_data;
        int i, ret;

        /* For DT platforms allocate onecell data for clock registration */
        if (np) {
                clk_data = kzalloc_flex(*clk_data, hws, DA7219_DAI_NUM_CLKS);
                if (!clk_data)
                        return -ENOMEM;

                clk_data->num = DA7219_DAI_NUM_CLKS;
                da7219->clk_hw_data = clk_data;
        }

        for (i = 0; i < DA7219_DAI_NUM_CLKS; ++i) {
                struct clk_init_data init = {};
                struct clk_lookup *dai_clk_lookup;
                struct clk_hw *dai_clk_hw = &da7219->dai_clks_hw[i];

                switch (i) {
                case DA7219_DAI_WCLK_IDX:
                        /*
                         * If we can, make MCLK the parent of WCLK to ensure
                         * it's enabled as required.
                         */
                        if (da7219->mclk) {
                                parent_name = __clk_get_name(da7219->mclk);
                                init.parent_names = &parent_name;
                                init.num_parents = 1;
                        } else {
                                init.parent_names = NULL;
                                init.num_parents = 0;
                        }
                        break;
                case DA7219_DAI_BCLK_IDX:
                        /* Make WCLK the parent of BCLK */
                        parent_name = __clk_get_name(da7219->dai_clks[DA7219_DAI_WCLK_IDX]);
                        init.parent_names = &parent_name;
                        init.num_parents = 1;
                        break;
                default:
                        dev_err(dev, "Invalid clock index\n");
                        ret = -EINVAL;
                        goto err;
                }

                init.name = pdata->dai_clk_names[i];
                init.ops = &da7219_dai_clk_ops[i];
                init.flags = CLK_GET_RATE_NOCACHE | CLK_SET_RATE_GATE;
                dai_clk_hw->init = &init;

                ret = clk_hw_register(dev, dai_clk_hw);
                if (ret) {
                        dev_warn(dev, "Failed to register %s: %d\n", init.name,
                                 ret);
                        goto err;
                }
                da7219->dai_clks[i] = dai_clk_hw->clk;

                /* For DT setup onecell data, otherwise create lookup */
                if (np) {
                        da7219->clk_hw_data->hws[i] = dai_clk_hw;
                } else {
                        dai_clk_lookup = clkdev_hw_create(dai_clk_hw, init.name,
                                                          "%s", dev_name(dev));
                        if (!dai_clk_lookup) {
                                clk_hw_unregister(dai_clk_hw);
                                ret = -ENOMEM;
                                goto err;
                        } else {
                                da7219->dai_clks_lookup[i] = dai_clk_lookup;
                        }
                }
        }

        /* If we're using DT, then register as provider accordingly */
        if (np) {
                ret = of_clk_add_hw_provider(dev->of_node, of_clk_hw_onecell_get,
                                             da7219->clk_hw_data);
                if (ret) {
                        dev_err(dev, "Failed to register clock provider\n");
                        goto err;
                }
        }

        return 0;

err:
        while (--i >= 0) {
                if (da7219->dai_clks_lookup[i])
                        clkdev_drop(da7219->dai_clks_lookup[i]);

                clk_hw_unregister(&da7219->dai_clks_hw[i]);
        }

        if (np)
                kfree(da7219->clk_hw_data);

        return ret;
}

static void da7219_free_dai_clks(struct snd_soc_component *component)
{
        struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
        struct device_node *np = component->dev->of_node;
        int i;

        if (np)
                of_clk_del_provider(np);

        for (i = DA7219_DAI_NUM_CLKS - 1; i >= 0; --i) {
                if (da7219->dai_clks_lookup[i])
                        clkdev_drop(da7219->dai_clks_lookup[i]);

                clk_hw_unregister(&da7219->dai_clks_hw[i]);
        }

        if (np)
                kfree(da7219->clk_hw_data);
}
#else
static inline int da7219_register_dai_clks(struct snd_soc_component *component)
{
        return 0;
}

static void da7219_free_dai_clks(struct snd_soc_component *component) {}
#endif /* CONFIG_COMMON_CLK */

static void da7219_handle_pdata(struct snd_soc_component *component)
{
        struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
        struct da7219_pdata *pdata = da7219->pdata;

        if (pdata) {
                u8 micbias_lvl = 0;

                da7219->wakeup_source = pdata->wakeup_source;

                /* Mic Bias voltages */
                switch (pdata->micbias_lvl) {
                case DA7219_MICBIAS_1_6V:
                case DA7219_MICBIAS_1_8V:
                case DA7219_MICBIAS_2_0V:
                case DA7219_MICBIAS_2_2V:
                case DA7219_MICBIAS_2_4V:
                case DA7219_MICBIAS_2_6V:
                        micbias_lvl |= (pdata->micbias_lvl <<
                                        DA7219_MICBIAS1_LEVEL_SHIFT);
                        break;
                }

                snd_soc_component_write(component, DA7219_MICBIAS_CTRL, micbias_lvl);

                /*
                 * Calculate delay required to compensate for DC offset in
                 * Mic PGA, based on Mic Bias voltage.
                 */
                da7219->mic_pga_delay =  DA7219_MIC_PGA_BASE_DELAY +
                                        (pdata->micbias_lvl *
                                         DA7219_MIC_PGA_OFFSET_DELAY);

                /* Mic */
                switch (pdata->mic_amp_in_sel) {
                case DA7219_MIC_AMP_IN_SEL_DIFF:
                case DA7219_MIC_AMP_IN_SEL_SE_P:
                case DA7219_MIC_AMP_IN_SEL_SE_N:
                        snd_soc_component_write(component, DA7219_MIC_1_SELECT,
                                      pdata->mic_amp_in_sel);
                        break;
                }
        }
}


/*
 * Regmap configs
 */

static const struct reg_default da7219_reg_defaults[] = {
        { DA7219_MIC_1_SELECT, 0x00 },
        { DA7219_CIF_TIMEOUT_CTRL, 0x01 },
        { DA7219_SR_24_48, 0x00 },
        { DA7219_SR, 0x0A },
        { DA7219_CIF_I2C_ADDR_CFG, 0x02 },
        { DA7219_PLL_CTRL, 0x10 },
        { DA7219_PLL_FRAC_TOP, 0x00 },
        { DA7219_PLL_FRAC_BOT, 0x00 },
        { DA7219_PLL_INTEGER, 0x20 },
        { DA7219_DIG_ROUTING_DAI, 0x10 },
        { DA7219_DAI_CLK_MODE, 0x01 },
        { DA7219_DAI_CTRL, 0x28 },
        { DA7219_DAI_TDM_CTRL, 0x40 },
        { DA7219_DIG_ROUTING_DAC, 0x32 },
        { DA7219_DAI_OFFSET_LOWER, 0x00 },
        { DA7219_DAI_OFFSET_UPPER, 0x00 },
        { DA7219_REFERENCES, 0x08 },
        { DA7219_MIXIN_L_SELECT, 0x00 },
        { DA7219_MIXIN_L_GAIN, 0x03 },
        { DA7219_ADC_L_GAIN, 0x6F },
        { DA7219_ADC_FILTERS1, 0x80 },
        { DA7219_MIC_1_GAIN, 0x01 },
        { DA7219_SIDETONE_CTRL, 0x40 },
        { DA7219_SIDETONE_GAIN, 0x0E },
        { DA7219_DROUTING_ST_OUTFILT_1L, 0x01 },
        { DA7219_DROUTING_ST_OUTFILT_1R, 0x02 },
        { DA7219_DAC_FILTERS5, 0x00 },
        { DA7219_DAC_FILTERS2, 0x88 },
        { DA7219_DAC_FILTERS3, 0x88 },
        { DA7219_DAC_FILTERS4, 0x08 },
        { DA7219_DAC_FILTERS1, 0x80 },
        { DA7219_DAC_L_GAIN, 0x6F },
        { DA7219_DAC_R_GAIN, 0x6F },
        { DA7219_CP_CTRL, 0x20 },
        { DA7219_HP_L_GAIN, 0x39 },
        { DA7219_HP_R_GAIN, 0x39 },
        { DA7219_MIXOUT_L_SELECT, 0x00 },
        { DA7219_MIXOUT_R_SELECT, 0x00 },
        { DA7219_MICBIAS_CTRL, 0x03 },
        { DA7219_MIC_1_CTRL, 0x40 },
        { DA7219_MIXIN_L_CTRL, 0x40 },
        { DA7219_ADC_L_CTRL, 0x40 },
        { DA7219_DAC_L_CTRL, 0x40 },
        { DA7219_DAC_R_CTRL, 0x40 },
        { DA7219_HP_L_CTRL, 0x40 },
        { DA7219_HP_R_CTRL, 0x40 },
        { DA7219_MIXOUT_L_CTRL, 0x10 },
        { DA7219_MIXOUT_R_CTRL, 0x10 },
        { DA7219_CHIP_ID1, 0x23 },
        { DA7219_CHIP_ID2, 0x93 },
        { DA7219_IO_CTRL, 0x00 },
        { DA7219_GAIN_RAMP_CTRL, 0x00 },
        { DA7219_PC_COUNT, 0x02 },
        { DA7219_CP_VOL_THRESHOLD1, 0x0E },
        { DA7219_DIG_CTRL, 0x00 },
        { DA7219_ALC_CTRL2, 0x00 },
        { DA7219_ALC_CTRL3, 0x00 },
        { DA7219_ALC_NOISE, 0x3F },
        { DA7219_ALC_TARGET_MIN, 0x3F },
        { DA7219_ALC_TARGET_MAX, 0x00 },
        { DA7219_ALC_GAIN_LIMITS, 0xFF },
        { DA7219_ALC_ANA_GAIN_LIMITS, 0x71 },
        { DA7219_ALC_ANTICLIP_CTRL, 0x00 },
        { DA7219_ALC_ANTICLIP_LEVEL, 0x00 },
        { DA7219_DAC_NG_SETUP_TIME, 0x00 },
        { DA7219_DAC_NG_OFF_THRESH, 0x00 },
        { DA7219_DAC_NG_ON_THRESH, 0x00 },
        { DA7219_DAC_NG_CTRL, 0x00 },
        { DA7219_TONE_GEN_CFG1, 0x00 },
        { DA7219_TONE_GEN_CFG2, 0x00 },
        { DA7219_TONE_GEN_CYCLES, 0x00 },
        { DA7219_TONE_GEN_FREQ1_L, 0x55 },
        { DA7219_TONE_GEN_FREQ1_U, 0x15 },
        { DA7219_TONE_GEN_FREQ2_L, 0x00 },
        { DA7219_TONE_GEN_FREQ2_U, 0x40 },
        { DA7219_TONE_GEN_ON_PER, 0x02 },
        { DA7219_TONE_GEN_OFF_PER, 0x01 },
        { DA7219_ACCDET_IRQ_MASK_A, 0x00 },
        { DA7219_ACCDET_IRQ_MASK_B, 0x00 },
        { DA7219_ACCDET_CONFIG_1, 0xD6 },
        { DA7219_ACCDET_CONFIG_2, 0x34 },
        { DA7219_ACCDET_CONFIG_3, 0x0A },
        { DA7219_ACCDET_CONFIG_4, 0x16 },
        { DA7219_ACCDET_CONFIG_5, 0x21 },
        { DA7219_ACCDET_CONFIG_6, 0x3E },
        { DA7219_ACCDET_CONFIG_7, 0x01 },
        { DA7219_SYSTEM_ACTIVE, 0x00 },
};

static bool da7219_volatile_register(struct device *dev, unsigned int reg)
{
        switch (reg) {
        case DA7219_MIC_1_GAIN_STATUS:
        case DA7219_MIXIN_L_GAIN_STATUS:
        case DA7219_ADC_L_GAIN_STATUS:
        case DA7219_DAC_L_GAIN_STATUS:
        case DA7219_DAC_R_GAIN_STATUS:
        case DA7219_HP_L_GAIN_STATUS:
        case DA7219_HP_R_GAIN_STATUS:
        case DA7219_CIF_CTRL:
        case DA7219_PLL_SRM_STS:
        case DA7219_ALC_CTRL1:
        case DA7219_SYSTEM_MODES_INPUT:
        case DA7219_SYSTEM_MODES_OUTPUT:
        case DA7219_ALC_OFFSET_AUTO_M_L:
        case DA7219_ALC_OFFSET_AUTO_U_L:
        case DA7219_TONE_GEN_CFG1:
        case DA7219_ACCDET_STATUS_A:
        case DA7219_ACCDET_STATUS_B:
        case DA7219_ACCDET_IRQ_EVENT_A:
        case DA7219_ACCDET_IRQ_EVENT_B:
        case DA7219_ACCDET_CONFIG_8:
        case DA7219_SYSTEM_STATUS:
                return true;
        default:
                return false;
        }
}

static const struct regmap_config da7219_regmap_config = {
        .reg_bits = 8,
        .val_bits = 8,

        .max_register = DA7219_SYSTEM_ACTIVE,
        .reg_defaults = da7219_reg_defaults,
        .num_reg_defaults = ARRAY_SIZE(da7219_reg_defaults),
        .volatile_reg = da7219_volatile_register,
        .cache_type = REGCACHE_RBTREE,
};

static const struct reg_sequence da7219_rev_aa_patch[] = {
        { DA7219_REFERENCES, 0x08 },
};

static int da7219_probe(struct snd_soc_component *component)
{
        struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
        unsigned int system_active, system_status, rev;
        u8 io_voltage_lvl;
        int i, ret;

        da7219->component = component;
        mutex_init(&da7219->ctrl_lock);
        mutex_init(&da7219->pll_lock);

        /* Regulator configuration */
        ret = da7219_handle_supplies(component, &io_voltage_lvl);
        if (ret)
                return ret;

        regcache_cache_bypass(da7219->regmap, true);

        /* Disable audio paths if still active from previous start */
        regmap_read(da7219->regmap, DA7219_SYSTEM_ACTIVE, &system_active);
        if (system_active) {
                regmap_write(da7219->regmap, DA7219_GAIN_RAMP_CTRL,
                             DA7219_GAIN_RAMP_RATE_NOMINAL);
                regmap_write(da7219->regmap, DA7219_SYSTEM_MODES_INPUT, 0x00);
                regmap_write(da7219->regmap, DA7219_SYSTEM_MODES_OUTPUT, 0x01);

                for (i = 0; i < DA7219_SYS_STAT_CHECK_RETRIES; ++i) {
                        regmap_read(da7219->regmap, DA7219_SYSTEM_STATUS,
                                    &system_status);
                        if (!system_status)
                                break;

                        msleep(DA7219_SYS_STAT_CHECK_DELAY);
                }
        }

        /* Soft reset component */
        regmap_write_bits(da7219->regmap, DA7219_ACCDET_CONFIG_1,
                          DA7219_ACCDET_EN_MASK, 0);
        regmap_write_bits(da7219->regmap, DA7219_CIF_CTRL,
                          DA7219_CIF_REG_SOFT_RESET_MASK,
                          DA7219_CIF_REG_SOFT_RESET_MASK);
        regmap_write_bits(da7219->regmap, DA7219_SYSTEM_ACTIVE,
                          DA7219_SYSTEM_ACTIVE_MASK, 0);
        regmap_write_bits(da7219->regmap, DA7219_SYSTEM_ACTIVE,
                          DA7219_SYSTEM_ACTIVE_MASK, 1);

        regcache_cache_bypass(da7219->regmap, false);
        regmap_reinit_cache(da7219->regmap, &da7219_regmap_config);

        /* Update IO voltage level range based on supply level */
        snd_soc_component_write(component, DA7219_IO_CTRL, io_voltage_lvl);

        ret = regmap_read(da7219->regmap, DA7219_CHIP_REVISION, &rev);
        if (ret) {
                dev_err(component->dev, "Failed to read chip revision: %d\n", ret);
                goto err_disable_reg;
        }

        switch (rev & DA7219_CHIP_MINOR_MASK) {
        case 0:
                ret = regmap_register_patch(da7219->regmap, da7219_rev_aa_patch,
                                            ARRAY_SIZE(da7219_rev_aa_patch));
                if (ret) {
                        dev_err(component->dev, "Failed to register AA patch: %d\n",
                                ret);
                        goto err_disable_reg;
                }
                break;
        default:
                break;
        }

        /* Handle DT/ACPI/Platform data */
        da7219_handle_pdata(component);

        /* Check if MCLK provided */
        da7219->mclk = clk_get(component->dev, "mclk");
        if (IS_ERR(da7219->mclk)) {
                if (PTR_ERR(da7219->mclk) != -ENOENT) {
                        ret = PTR_ERR(da7219->mclk);
                        goto err_disable_reg;
                } else {
                        da7219->mclk = NULL;
                }
        }

        /* Register CCF DAI clock control */
        ret = da7219_register_dai_clks(component);
        if (ret)
                goto err_put_clk;

        /* Default PC counter to free-running */
        snd_soc_component_update_bits(component, DA7219_PC_COUNT, DA7219_PC_FREERUN_MASK,
                            DA7219_PC_FREERUN_MASK);

        /* Default gain ramping */
        snd_soc_component_update_bits(component, DA7219_MIXIN_L_CTRL,
                            DA7219_MIXIN_L_AMP_RAMP_EN_MASK,
                            DA7219_MIXIN_L_AMP_RAMP_EN_MASK);
        snd_soc_component_update_bits(component, DA7219_ADC_L_CTRL, DA7219_ADC_L_RAMP_EN_MASK,
                            DA7219_ADC_L_RAMP_EN_MASK);
        snd_soc_component_update_bits(component, DA7219_DAC_L_CTRL, DA7219_DAC_L_RAMP_EN_MASK,
                            DA7219_DAC_L_RAMP_EN_MASK);
        snd_soc_component_update_bits(component, DA7219_DAC_R_CTRL, DA7219_DAC_R_RAMP_EN_MASK,
                            DA7219_DAC_R_RAMP_EN_MASK);
        snd_soc_component_update_bits(component, DA7219_HP_L_CTRL,
                            DA7219_HP_L_AMP_RAMP_EN_MASK,
                            DA7219_HP_L_AMP_RAMP_EN_MASK);
        snd_soc_component_update_bits(component, DA7219_HP_R_CTRL,
                            DA7219_HP_R_AMP_RAMP_EN_MASK,
                            DA7219_HP_R_AMP_RAMP_EN_MASK);

        /* Default minimum gain on HP to avoid pops during DAPM sequencing */
        snd_soc_component_update_bits(component, DA7219_HP_L_CTRL,
                            DA7219_HP_L_AMP_MIN_GAIN_EN_MASK,
                            DA7219_HP_L_AMP_MIN_GAIN_EN_MASK);
        snd_soc_component_update_bits(component, DA7219_HP_R_CTRL,
                            DA7219_HP_R_AMP_MIN_GAIN_EN_MASK,
                            DA7219_HP_R_AMP_MIN_GAIN_EN_MASK);

        /* Default infinite tone gen, start/stop by Kcontrol */
        snd_soc_component_write(component, DA7219_TONE_GEN_CYCLES, DA7219_BEEP_CYCLES_MASK);

        /* Initialise AAD block */
        ret = da7219_aad_init(component);
        if (ret)
                goto err_free_dai_clks;

        return 0;

err_free_dai_clks:
        da7219_free_dai_clks(component);

err_put_clk:
        clk_put(da7219->mclk);

err_disable_reg:
        regulator_bulk_disable(DA7219_NUM_SUPPLIES, da7219->supplies);
        regulator_bulk_free(DA7219_NUM_SUPPLIES, da7219->supplies);

        return ret;
}

static void da7219_remove(struct snd_soc_component *component)
{
        struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);

        da7219_aad_exit(component);

        da7219_free_dai_clks(component);
        clk_put(da7219->mclk);

        /* Supplies */
        regulator_bulk_disable(DA7219_NUM_SUPPLIES, da7219->supplies);
        regulator_bulk_free(DA7219_NUM_SUPPLIES, da7219->supplies);
}

#ifdef CONFIG_PM
static int da7219_suspend(struct snd_soc_component *component)
{
        struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
        struct snd_soc_dapm_context *dapm = snd_soc_component_to_dapm(component);

        /* Suspend AAD if we're not a wake-up source */
        if (!da7219->wakeup_source)
                da7219_aad_suspend(component);

        snd_soc_dapm_force_bias_level(dapm, SND_SOC_BIAS_OFF);

        return 0;
}

static int da7219_resume(struct snd_soc_component *component)
{
        struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
        struct snd_soc_dapm_context *dapm = snd_soc_component_to_dapm(component);

        snd_soc_dapm_force_bias_level(dapm, SND_SOC_BIAS_STANDBY);

        /* Resume AAD if previously suspended */
        if (!da7219->wakeup_source)
                da7219_aad_resume(component);

        return 0;
}
#else
#define da7219_suspend NULL
#define da7219_resume NULL
#endif

static int da7219_set_jack(struct snd_soc_component *component, struct snd_soc_jack *jack,
                           void *data)
{
        da7219_aad_jack_det(component, jack);

        return 0;
}

static const struct snd_soc_component_driver soc_component_dev_da7219 = {
        .probe                  = da7219_probe,
        .remove                 = da7219_remove,
        .suspend                = da7219_suspend,
        .resume                 = da7219_resume,
        .set_jack               = da7219_set_jack,
        .set_bias_level         = da7219_set_bias_level,
        .controls               = da7219_snd_controls,
        .num_controls           = ARRAY_SIZE(da7219_snd_controls),
        .dapm_widgets           = da7219_dapm_widgets,
        .num_dapm_widgets       = ARRAY_SIZE(da7219_dapm_widgets),
        .dapm_routes            = da7219_audio_map,
        .num_dapm_routes        = ARRAY_SIZE(da7219_audio_map),
        .idle_bias_on           = 1,
        .use_pmdown_time        = 1,
        .endianness             = 1,
};


/*
 * I2C layer
 */

static int da7219_i2c_probe(struct i2c_client *i2c)
{
        struct device *dev = &i2c->dev;
        struct da7219_priv *da7219;
        int ret;

        da7219 = devm_kzalloc(dev, sizeof(struct da7219_priv),
                              GFP_KERNEL);
        if (!da7219)
                return -ENOMEM;

        i2c_set_clientdata(i2c, da7219);

        da7219->regmap = devm_regmap_init_i2c(i2c, &da7219_regmap_config);
        if (IS_ERR(da7219->regmap)) {
                ret = PTR_ERR(da7219->regmap);
                dev_err(dev, "regmap_init() failed: %d\n", ret);
                return ret;
        }

        /* Retrieve DT/ACPI/Platform data */
        da7219->pdata = dev_get_platdata(dev);
        if (!da7219->pdata)
                da7219->pdata = da7219_fw_to_pdata(dev);

        /* AAD */
        ret = da7219_aad_probe(i2c);
        if (ret)
                return ret;

        ret = devm_snd_soc_register_component(dev, &soc_component_dev_da7219,
                                              &da7219_dai, 1);
        if (ret < 0) {
                dev_err(dev, "Failed to register da7219 component: %d\n", ret);
        }
        return ret;
}

static const struct i2c_device_id da7219_i2c_id[] = {
        { "da7219", },
        { }
};
MODULE_DEVICE_TABLE(i2c, da7219_i2c_id);

static struct i2c_driver da7219_i2c_driver = {
        .driver = {
                .name = "da7219",
                .of_match_table = of_match_ptr(da7219_of_match),
                .acpi_match_table = ACPI_PTR(da7219_acpi_match),
        },
        .probe          = da7219_i2c_probe,
        .id_table       = da7219_i2c_id,
};

module_i2c_driver(da7219_i2c_driver);

MODULE_DESCRIPTION("ASoC DA7219 Codec Driver");
MODULE_AUTHOR("Adam Thomson <Adam.Thomson.Opensource@diasemi.com>");
MODULE_LICENSE("GPL");