Quelle  da7219.c   Sprache: 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_soc_kcontrol_component(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_soc_kcontrol_component(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_soc_kcontrol_component(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_soc_kcontrol_component(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_soc_kcontrol_component(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_soc_kcontrol_component(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_soc_kcontrol_component(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_soc_kcontrol_component(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);
 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_component_get_bias_level(component) == 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_component_get_bias_level(component) == 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_component_get_bias_level(component) == 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(struct_size(clk_data, hws, DA7219_DAI_NUM_CLKS),
       GFP_KERNEL);
  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,
--> --------------------

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