/*
 * max98090.c -- MAX98090 ALSA SoC Audio driver
 *
 * Copyright 2011-2012 Maxim Integrated Products
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

#include <linux/delay.h>
#include <linux/i2c.h>
#include <linux/module.h>
#include <linux/of.h>
#include <linux/pm.h>
#include <linux/pm_runtime.h>
#include <linux/regmap.h>
#include <linux/slab.h>
#include <linux/acpi.h>
#include <linux/clk.h>
#include <sound/jack.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <sound/tlv.h>
#include <sound/max98090.h>
#include "max98090.h"

/* Allows for sparsely populated register maps */
static const struct reg_default max98090_reg[] = {
        { 0x00, 0x00 }, /* 00 Software Reset */
        { 0x03, 0x04 }, /* 03 Interrupt Masks */
        { 0x04, 0x00 }, /* 04 System Clock Quick */
        { 0x05, 0x00 }, /* 05 Sample Rate Quick */
        { 0x06, 0x00 }, /* 06 DAI Interface Quick */
        { 0x07, 0x00 }, /* 07 DAC Path Quick */
        { 0x08, 0x00 }, /* 08 Mic/Direct to ADC Quick */
        { 0x09, 0x00 }, /* 09 Line to ADC Quick */
        { 0x0A, 0x00 }, /* 0A Analog Mic Loop Quick */
        { 0x0B, 0x00 }, /* 0B Analog Line Loop Quick */
        { 0x0C, 0x00 }, /* 0C Reserved */
        { 0x0D, 0x00 }, /* 0D Input Config */
        { 0x0E, 0x1B }, /* 0E Line Input Level */
        { 0x0F, 0x00 }, /* 0F Line Config */

        { 0x10, 0x14 }, /* 10 Mic1 Input Level */
        { 0x11, 0x14 }, /* 11 Mic2 Input Level */
        { 0x12, 0x00 }, /* 12 Mic Bias Voltage */
        { 0x13, 0x00 }, /* 13 Digital Mic Config */
        { 0x14, 0x00 }, /* 14 Digital Mic Mode */
        { 0x15, 0x00 }, /* 15 Left ADC Mixer */
        { 0x16, 0x00 }, /* 16 Right ADC Mixer */
        { 0x17, 0x03 }, /* 17 Left ADC Level */
        { 0x18, 0x03 }, /* 18 Right ADC Level */
        { 0x19, 0x00 }, /* 19 ADC Biquad Level */
        { 0x1A, 0x00 }, /* 1A ADC Sidetone */
        { 0x1B, 0x00 }, /* 1B System Clock */
        { 0x1C, 0x00 }, /* 1C Clock Mode */
        { 0x1D, 0x00 }, /* 1D Any Clock 1 */
        { 0x1E, 0x00 }, /* 1E Any Clock 2 */
        { 0x1F, 0x00 }, /* 1F Any Clock 3 */

        { 0x20, 0x00 }, /* 20 Any Clock 4 */
        { 0x21, 0x00 }, /* 21 Master Mode */
        { 0x22, 0x00 }, /* 22 Interface Format */
        { 0x23, 0x00 }, /* 23 TDM Format 1*/
        { 0x24, 0x00 }, /* 24 TDM Format 2*/
        { 0x25, 0x00 }, /* 25 I/O Configuration */
        { 0x26, 0x80 }, /* 26 Filter Config */
        { 0x27, 0x00 }, /* 27 DAI Playback Level */
        { 0x28, 0x00 }, /* 28 EQ Playback Level */
        { 0x29, 0x00 }, /* 29 Left HP Mixer */
        { 0x2A, 0x00 }, /* 2A Right HP Mixer */
        { 0x2B, 0x00 }, /* 2B HP Control */
        { 0x2C, 0x1A }, /* 2C Left HP Volume */
        { 0x2D, 0x1A }, /* 2D Right HP Volume */
        { 0x2E, 0x00 }, /* 2E Left Spk Mixer */
        { 0x2F, 0x00 }, /* 2F Right Spk Mixer */

        { 0x30, 0x00 }, /* 30 Spk Control */
        { 0x31, 0x2C }, /* 31 Left Spk Volume */
        { 0x32, 0x2C }, /* 32 Right Spk Volume */
        { 0x33, 0x00 }, /* 33 ALC Timing */
        { 0x34, 0x00 }, /* 34 ALC Compressor */
        { 0x35, 0x00 }, /* 35 ALC Expander */
        { 0x36, 0x00 }, /* 36 ALC Gain */
        { 0x37, 0x00 }, /* 37 Rcv/Line OutL Mixer */
        { 0x38, 0x00 }, /* 38 Rcv/Line OutL Control */
        { 0x39, 0x15 }, /* 39 Rcv/Line OutL Volume */
        { 0x3A, 0x00 }, /* 3A Line OutR Mixer */
        { 0x3B, 0x00 }, /* 3B Line OutR Control */
        { 0x3C, 0x15 }, /* 3C Line OutR Volume */
        { 0x3D, 0x00 }, /* 3D Jack Detect */
        { 0x3E, 0x00 }, /* 3E Input Enable */
        { 0x3F, 0x00 }, /* 3F Output Enable */

        { 0x40, 0x00 }, /* 40 Level Control */
        { 0x41, 0x00 }, /* 41 DSP Filter Enable */
        { 0x42, 0x00 }, /* 42 Bias Control */
        { 0x43, 0x00 }, /* 43 DAC Control */
        { 0x44, 0x06 }, /* 44 ADC Control */
        { 0x45, 0x00 }, /* 45 Device Shutdown */
        { 0x46, 0x00 }, /* 46 Equalizer Band 1 Coefficient B0 */
        { 0x47, 0x00 }, /* 47 Equalizer Band 1 Coefficient B0 */
        { 0x48, 0x00 }, /* 48 Equalizer Band 1 Coefficient B0 */
        { 0x49, 0x00 }, /* 49 Equalizer Band 1 Coefficient B1 */
        { 0x4A, 0x00 }, /* 4A Equalizer Band 1 Coefficient B1 */
        { 0x4B, 0x00 }, /* 4B Equalizer Band 1 Coefficient B1 */
        { 0x4C, 0x00 }, /* 4C Equalizer Band 1 Coefficient B2 */
        { 0x4D, 0x00 }, /* 4D Equalizer Band 1 Coefficient B2 */
        { 0x4E, 0x00 }, /* 4E Equalizer Band 1 Coefficient B2 */
        { 0x4F, 0x00 }, /* 4F Equalizer Band 1 Coefficient A1 */

        { 0x50, 0x00 }, /* 50 Equalizer Band 1 Coefficient A1 */
        { 0x51, 0x00 }, /* 51 Equalizer Band 1 Coefficient A1 */
        { 0x52, 0x00 }, /* 52 Equalizer Band 1 Coefficient A2 */
        { 0x53, 0x00 }, /* 53 Equalizer Band 1 Coefficient A2 */
        { 0x54, 0x00 }, /* 54 Equalizer Band 1 Coefficient A2 */
        { 0x55, 0x00 }, /* 55 Equalizer Band 2 Coefficient B0 */
        { 0x56, 0x00 }, /* 56 Equalizer Band 2 Coefficient B0 */
        { 0x57, 0x00 }, /* 57 Equalizer Band 2 Coefficient B0 */
        { 0x58, 0x00 }, /* 58 Equalizer Band 2 Coefficient B1 */
        { 0x59, 0x00 }, /* 59 Equalizer Band 2 Coefficient B1 */
        { 0x5A, 0x00 }, /* 5A Equalizer Band 2 Coefficient B1 */
        { 0x5B, 0x00 }, /* 5B Equalizer Band 2 Coefficient B2 */
        { 0x5C, 0x00 }, /* 5C Equalizer Band 2 Coefficient B2 */
        { 0x5D, 0x00 }, /* 5D Equalizer Band 2 Coefficient B2 */
        { 0x5E, 0x00 }, /* 5E Equalizer Band 2 Coefficient A1 */
        { 0x5F, 0x00 }, /* 5F Equalizer Band 2 Coefficient A1 */

        { 0x60, 0x00 }, /* 60 Equalizer Band 2 Coefficient A1 */
        { 0x61, 0x00 }, /* 61 Equalizer Band 2 Coefficient A2 */
        { 0x62, 0x00 }, /* 62 Equalizer Band 2 Coefficient A2 */
        { 0x63, 0x00 }, /* 63 Equalizer Band 2 Coefficient A2 */
        { 0x64, 0x00 }, /* 64 Equalizer Band 3 Coefficient B0 */
        { 0x65, 0x00 }, /* 65 Equalizer Band 3 Coefficient B0 */
        { 0x66, 0x00 }, /* 66 Equalizer Band 3 Coefficient B0 */
        { 0x67, 0x00 }, /* 67 Equalizer Band 3 Coefficient B1 */
        { 0x68, 0x00 }, /* 68 Equalizer Band 3 Coefficient B1 */
        { 0x69, 0x00 }, /* 69 Equalizer Band 3 Coefficient B1 */
        { 0x6A, 0x00 }, /* 6A Equalizer Band 3 Coefficient B2 */
        { 0x6B, 0x00 }, /* 6B Equalizer Band 3 Coefficient B2 */
        { 0x6C, 0x00 }, /* 6C Equalizer Band 3 Coefficient B2 */
        { 0x6D, 0x00 }, /* 6D Equalizer Band 3 Coefficient A1 */
        { 0x6E, 0x00 }, /* 6E Equalizer Band 3 Coefficient A1 */
        { 0x6F, 0x00 }, /* 6F Equalizer Band 3 Coefficient A1 */

        { 0x70, 0x00 }, /* 70 Equalizer Band 3 Coefficient A2 */
        { 0x71, 0x00 }, /* 71 Equalizer Band 3 Coefficient A2 */
        { 0x72, 0x00 }, /* 72 Equalizer Band 3 Coefficient A2 */
        { 0x73, 0x00 }, /* 73 Equalizer Band 4 Coefficient B0 */
        { 0x74, 0x00 }, /* 74 Equalizer Band 4 Coefficient B0 */
        { 0x75, 0x00 }, /* 75 Equalizer Band 4 Coefficient B0 */
        { 0x76, 0x00 }, /* 76 Equalizer Band 4 Coefficient B1 */
        { 0x77, 0x00 }, /* 77 Equalizer Band 4 Coefficient B1 */
        { 0x78, 0x00 }, /* 78 Equalizer Band 4 Coefficient B1 */
        { 0x79, 0x00 }, /* 79 Equalizer Band 4 Coefficient B2 */
        { 0x7A, 0x00 }, /* 7A Equalizer Band 4 Coefficient B2 */
        { 0x7B, 0x00 }, /* 7B Equalizer Band 4 Coefficient B2 */
        { 0x7C, 0x00 }, /* 7C Equalizer Band 4 Coefficient A1 */
        { 0x7D, 0x00 }, /* 7D Equalizer Band 4 Coefficient A1 */
        { 0x7E, 0x00 }, /* 7E Equalizer Band 4 Coefficient A1 */
        { 0x7F, 0x00 }, /* 7F Equalizer Band 4 Coefficient A2 */

        { 0x80, 0x00 }, /* 80 Equalizer Band 4 Coefficient A2 */
        { 0x81, 0x00 }, /* 81 Equalizer Band 4 Coefficient A2 */
        { 0x82, 0x00 }, /* 82 Equalizer Band 5 Coefficient B0 */
        { 0x83, 0x00 }, /* 83 Equalizer Band 5 Coefficient B0 */
        { 0x84, 0x00 }, /* 84 Equalizer Band 5 Coefficient B0 */
        { 0x85, 0x00 }, /* 85 Equalizer Band 5 Coefficient B1 */
        { 0x86, 0x00 }, /* 86 Equalizer Band 5 Coefficient B1 */
        { 0x87, 0x00 }, /* 87 Equalizer Band 5 Coefficient B1 */
        { 0x88, 0x00 }, /* 88 Equalizer Band 5 Coefficient B2 */
        { 0x89, 0x00 }, /* 89 Equalizer Band 5 Coefficient B2 */
        { 0x8A, 0x00 }, /* 8A Equalizer Band 5 Coefficient B2 */
        { 0x8B, 0x00 }, /* 8B Equalizer Band 5 Coefficient A1 */
        { 0x8C, 0x00 }, /* 8C Equalizer Band 5 Coefficient A1 */
        { 0x8D, 0x00 }, /* 8D Equalizer Band 5 Coefficient A1 */
        { 0x8E, 0x00 }, /* 8E Equalizer Band 5 Coefficient A2 */
        { 0x8F, 0x00 }, /* 8F Equalizer Band 5 Coefficient A2 */

        { 0x90, 0x00 }, /* 90 Equalizer Band 5 Coefficient A2 */
        { 0x91, 0x00 }, /* 91 Equalizer Band 6 Coefficient B0 */
        { 0x92, 0x00 }, /* 92 Equalizer Band 6 Coefficient B0 */
        { 0x93, 0x00 }, /* 93 Equalizer Band 6 Coefficient B0 */
        { 0x94, 0x00 }, /* 94 Equalizer Band 6 Coefficient B1 */
        { 0x95, 0x00 }, /* 95 Equalizer Band 6 Coefficient B1 */
        { 0x96, 0x00 }, /* 96 Equalizer Band 6 Coefficient B1 */
        { 0x97, 0x00 }, /* 97 Equalizer Band 6 Coefficient B2 */
        { 0x98, 0x00 }, /* 98 Equalizer Band 6 Coefficient B2 */
        { 0x99, 0x00 }, /* 99 Equalizer Band 6 Coefficient B2 */
        { 0x9A, 0x00 }, /* 9A Equalizer Band 6 Coefficient A1 */
        { 0x9B, 0x00 }, /* 9B Equalizer Band 6 Coefficient A1 */
        { 0x9C, 0x00 }, /* 9C Equalizer Band 6 Coefficient A1 */
        { 0x9D, 0x00 }, /* 9D Equalizer Band 6 Coefficient A2 */
        { 0x9E, 0x00 }, /* 9E Equalizer Band 6 Coefficient A2 */
        { 0x9F, 0x00 }, /* 9F Equalizer Band 6 Coefficient A2 */

        { 0xA0, 0x00 }, /* A0 Equalizer Band 7 Coefficient B0 */
        { 0xA1, 0x00 }, /* A1 Equalizer Band 7 Coefficient B0 */
        { 0xA2, 0x00 }, /* A2 Equalizer Band 7 Coefficient B0 */
        { 0xA3, 0x00 }, /* A3 Equalizer Band 7 Coefficient B1 */
        { 0xA4, 0x00 }, /* A4 Equalizer Band 7 Coefficient B1 */
        { 0xA5, 0x00 }, /* A5 Equalizer Band 7 Coefficient B1 */
        { 0xA6, 0x00 }, /* A6 Equalizer Band 7 Coefficient B2 */
        { 0xA7, 0x00 }, /* A7 Equalizer Band 7 Coefficient B2 */
        { 0xA8, 0x00 }, /* A8 Equalizer Band 7 Coefficient B2 */
        { 0xA9, 0x00 }, /* A9 Equalizer Band 7 Coefficient A1 */
        { 0xAA, 0x00 }, /* AA Equalizer Band 7 Coefficient A1 */
        { 0xAB, 0x00 }, /* AB Equalizer Band 7 Coefficient A1 */
        { 0xAC, 0x00 }, /* AC Equalizer Band 7 Coefficient A2 */
        { 0xAD, 0x00 }, /* AD Equalizer Band 7 Coefficient A2 */
        { 0xAE, 0x00 }, /* AE Equalizer Band 7 Coefficient A2 */
        { 0xAF, 0x00 }, /* AF ADC Biquad Coefficient B0 */

        { 0xB0, 0x00 }, /* B0 ADC Biquad Coefficient B0 */
        { 0xB1, 0x00 }, /* B1 ADC Biquad Coefficient B0 */
        { 0xB2, 0x00 }, /* B2 ADC Biquad Coefficient B1 */
        { 0xB3, 0x00 }, /* B3 ADC Biquad Coefficient B1 */
        { 0xB4, 0x00 }, /* B4 ADC Biquad Coefficient B1 */
        { 0xB5, 0x00 }, /* B5 ADC Biquad Coefficient B2 */
        { 0xB6, 0x00 }, /* B6 ADC Biquad Coefficient B2 */
        { 0xB7, 0x00 }, /* B7 ADC Biquad Coefficient B2 */
        { 0xB8, 0x00 }, /* B8 ADC Biquad Coefficient A1 */
        { 0xB9, 0x00 }, /* B9 ADC Biquad Coefficient A1 */
        { 0xBA, 0x00 }, /* BA ADC Biquad Coefficient A1 */
        { 0xBB, 0x00 }, /* BB ADC Biquad Coefficient A2 */
        { 0xBC, 0x00 }, /* BC ADC Biquad Coefficient A2 */
        { 0xBD, 0x00 }, /* BD ADC Biquad Coefficient A2 */
        { 0xBE, 0x00 }, /* BE Digital Mic 3 Volume */
        { 0xBF, 0x00 }, /* BF Digital Mic 4 Volume */

        { 0xC0, 0x00 }, /* C0 Digital Mic 34 Biquad Pre Atten */
        { 0xC1, 0x00 }, /* C1 Record TDM Slot */
        { 0xC2, 0x00 }, /* C2 Sample Rate */
        { 0xC3, 0x00 }, /* C3 Digital Mic 34 Biquad Coefficient C3 */
        { 0xC4, 0x00 }, /* C4 Digital Mic 34 Biquad Coefficient C4 */
        { 0xC5, 0x00 }, /* C5 Digital Mic 34 Biquad Coefficient C5 */
        { 0xC6, 0x00 }, /* C6 Digital Mic 34 Biquad Coefficient C6 */
        { 0xC7, 0x00 }, /* C7 Digital Mic 34 Biquad Coefficient C7 */
        { 0xC8, 0x00 }, /* C8 Digital Mic 34 Biquad Coefficient C8 */
        { 0xC9, 0x00 }, /* C9 Digital Mic 34 Biquad Coefficient C9 */
        { 0xCA, 0x00 }, /* CA Digital Mic 34 Biquad Coefficient CA */
        { 0xCB, 0x00 }, /* CB Digital Mic 34 Biquad Coefficient CB */
        { 0xCC, 0x00 }, /* CC Digital Mic 34 Biquad Coefficient CC */
        { 0xCD, 0x00 }, /* CD Digital Mic 34 Biquad Coefficient CD */
        { 0xCE, 0x00 }, /* CE Digital Mic 34 Biquad Coefficient CE */
        { 0xCF, 0x00 }, /* CF Digital Mic 34 Biquad Coefficient CF */

        { 0xD0, 0x00 }, /* D0 Digital Mic 34 Biquad Coefficient D0 */
        { 0xD1, 0x00 }, /* D1 Digital Mic 34 Biquad Coefficient D1 */
};

static bool max98090_volatile_register(struct device *dev, unsigned int reg)
{
        switch (reg) {
        case M98090_REG_SOFTWARE_RESET:
        case M98090_REG_DEVICE_STATUS:
        case M98090_REG_JACK_STATUS:
        case M98090_REG_REVISION_ID:
                return true;
        default:
                return false;
        }
}

static bool max98090_readable_register(struct device *dev, unsigned int reg)
{
        switch (reg) {
        case M98090_REG_DEVICE_STATUS:
        case M98090_REG_JACK_STATUS:
        case M98090_REG_INTERRUPT_S:
        case M98090_REG_RESERVED:
        case M98090_REG_LINE_INPUT_CONFIG:
        case M98090_REG_LINE_INPUT_LEVEL:
        case M98090_REG_INPUT_MODE:
        case M98090_REG_MIC1_INPUT_LEVEL:
        case M98090_REG_MIC2_INPUT_LEVEL:
        case M98090_REG_MIC_BIAS_VOLTAGE:
        case M98090_REG_DIGITAL_MIC_ENABLE:
        case M98090_REG_DIGITAL_MIC_CONFIG:
        case M98090_REG_LEFT_ADC_MIXER:
        case M98090_REG_RIGHT_ADC_MIXER:
        case M98090_REG_LEFT_ADC_LEVEL:
        case M98090_REG_RIGHT_ADC_LEVEL:
        case M98090_REG_ADC_BIQUAD_LEVEL:
        case M98090_REG_ADC_SIDETONE:
        case M98090_REG_SYSTEM_CLOCK:
        case M98090_REG_CLOCK_MODE:
        case M98090_REG_CLOCK_RATIO_NI_MSB:
        case M98090_REG_CLOCK_RATIO_NI_LSB:
        case M98090_REG_CLOCK_RATIO_MI_MSB:
        case M98090_REG_CLOCK_RATIO_MI_LSB:
        case M98090_REG_MASTER_MODE:
        case M98090_REG_INTERFACE_FORMAT:
        case M98090_REG_TDM_CONTROL:
        case M98090_REG_TDM_FORMAT:
        case M98090_REG_IO_CONFIGURATION:
        case M98090_REG_FILTER_CONFIG:
        case M98090_REG_DAI_PLAYBACK_LEVEL:
        case M98090_REG_DAI_PLAYBACK_LEVEL_EQ:
        case M98090_REG_LEFT_HP_MIXER:
        case M98090_REG_RIGHT_HP_MIXER:
        case M98090_REG_HP_CONTROL:
        case M98090_REG_LEFT_HP_VOLUME:
        case M98090_REG_RIGHT_HP_VOLUME:
        case M98090_REG_LEFT_SPK_MIXER:
        case M98090_REG_RIGHT_SPK_MIXER:
        case M98090_REG_SPK_CONTROL:
        case M98090_REG_LEFT_SPK_VOLUME:
        case M98090_REG_RIGHT_SPK_VOLUME:
        case M98090_REG_DRC_TIMING:
        case M98090_REG_DRC_COMPRESSOR:
        case M98090_REG_DRC_EXPANDER:
        case M98090_REG_DRC_GAIN:
        case M98090_REG_RCV_LOUTL_MIXER:
        case M98090_REG_RCV_LOUTL_CONTROL:
        case M98090_REG_RCV_LOUTL_VOLUME:
        case M98090_REG_LOUTR_MIXER:
        case M98090_REG_LOUTR_CONTROL:
        case M98090_REG_LOUTR_VOLUME:
        case M98090_REG_JACK_DETECT:
        case M98090_REG_INPUT_ENABLE:
        case M98090_REG_OUTPUT_ENABLE:
        case M98090_REG_LEVEL_CONTROL:
        case M98090_REG_DSP_FILTER_ENABLE:
        case M98090_REG_BIAS_CONTROL:
        case M98090_REG_DAC_CONTROL:
        case M98090_REG_ADC_CONTROL:
        case M98090_REG_DEVICE_SHUTDOWN:
        case M98090_REG_EQUALIZER_BASE ... M98090_REG_EQUALIZER_BASE + 0x68:
        case M98090_REG_RECORD_BIQUAD_BASE ... M98090_REG_RECORD_BIQUAD_BASE + 0x0E:
        case M98090_REG_DMIC3_VOLUME:
        case M98090_REG_DMIC4_VOLUME:
        case M98090_REG_DMIC34_BQ_PREATTEN:
        case M98090_REG_RECORD_TDM_SLOT:
        case M98090_REG_SAMPLE_RATE:
        case M98090_REG_DMIC34_BIQUAD_BASE ... M98090_REG_DMIC34_BIQUAD_BASE + 0x0E:
        case M98090_REG_REVISION_ID:
                return true;
        default:
                return false;
        }
}

static int max98090_reset(struct max98090_priv *max98090)
{
        int ret;

        /* Reset the codec by writing to this write-only reset register */
        ret = regmap_write(max98090->regmap, M98090_REG_SOFTWARE_RESET,
                M98090_SWRESET_MASK);
        if (ret < 0) {
                dev_err(max98090->codec->dev,
                        "Failed to reset codec: %d\n", ret);
                return ret;
        }

        msleep(20);
        return ret;
}

static const unsigned int max98090_micboost_tlv[] = {
        TLV_DB_RANGE_HEAD(2),
        0, 1, TLV_DB_SCALE_ITEM(0, 2000, 0),
        2, 2, TLV_DB_SCALE_ITEM(3000, 0, 0),
};

static const DECLARE_TLV_DB_SCALE(max98090_mic_tlv, 0, 100, 0);

static const DECLARE_TLV_DB_SCALE(max98090_line_single_ended_tlv,
        -600, 600, 0);

static const unsigned int max98090_line_tlv[] = {
        TLV_DB_RANGE_HEAD(2),
        0, 3, TLV_DB_SCALE_ITEM(-600, 300, 0),
        4, 5, TLV_DB_SCALE_ITEM(1400, 600, 0),
};

static const DECLARE_TLV_DB_SCALE(max98090_avg_tlv, 0, 600, 0);
static const DECLARE_TLV_DB_SCALE(max98090_av_tlv, -1200, 100, 0);

static const DECLARE_TLV_DB_SCALE(max98090_dvg_tlv, 0, 600, 0);
static const DECLARE_TLV_DB_SCALE(max98090_dv_tlv, -1500, 100, 0);

static const DECLARE_TLV_DB_SCALE(max98090_sidetone_tlv, -6050, 200, 0);

static const DECLARE_TLV_DB_SCALE(max98090_alc_tlv, -1500, 100, 0);
static const DECLARE_TLV_DB_SCALE(max98090_alcmakeup_tlv, 0, 100, 0);
static const DECLARE_TLV_DB_SCALE(max98090_alccomp_tlv, -3100, 100, 0);
static const DECLARE_TLV_DB_SCALE(max98090_drcexp_tlv, -6600, 100, 0);
static const DECLARE_TLV_DB_SCALE(max98090_sdg_tlv, 50, 200, 0);

static const unsigned int max98090_mixout_tlv[] = {
        TLV_DB_RANGE_HEAD(2),
        0, 1, TLV_DB_SCALE_ITEM(-1200, 250, 0),
        2, 3, TLV_DB_SCALE_ITEM(-600, 600, 0),
};

static const unsigned int max98090_hp_tlv[] = {
        TLV_DB_RANGE_HEAD(5),
        0, 6, TLV_DB_SCALE_ITEM(-6700, 400, 0),
        7, 14, TLV_DB_SCALE_ITEM(-4000, 300, 0),
        15, 21, TLV_DB_SCALE_ITEM(-1700, 200, 0),
        22, 27, TLV_DB_SCALE_ITEM(-400, 100, 0),
        28, 31, TLV_DB_SCALE_ITEM(150, 50, 0),
};

static const unsigned int max98090_spk_tlv[] = {
        TLV_DB_RANGE_HEAD(5),
        0, 4, TLV_DB_SCALE_ITEM(-4800, 400, 0),
        5, 10, TLV_DB_SCALE_ITEM(-2900, 300, 0),
        11, 14, TLV_DB_SCALE_ITEM(-1200, 200, 0),
        15, 29, TLV_DB_SCALE_ITEM(-500, 100, 0),
        30, 39, TLV_DB_SCALE_ITEM(950, 50, 0),
};

static const unsigned int max98090_rcv_lout_tlv[] = {
        TLV_DB_RANGE_HEAD(5),
        0, 6, TLV_DB_SCALE_ITEM(-6200, 400, 0),
        7, 14, TLV_DB_SCALE_ITEM(-3500, 300, 0),
        15, 21, TLV_DB_SCALE_ITEM(-1200, 200, 0),
        22, 27, TLV_DB_SCALE_ITEM(100, 100, 0),
        28, 31, TLV_DB_SCALE_ITEM(650, 50, 0),
};

static int max98090_get_enab_tlv(struct snd_kcontrol *kcontrol,
                                struct snd_ctl_elem_value *ucontrol)
{
        struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
        struct max98090_priv *max98090 = snd_soc_codec_get_drvdata(codec);
        struct soc_mixer_control *mc =
                (struct soc_mixer_control *)kcontrol->private_value;
        unsigned int mask = (1 << fls(mc->max)) - 1;
        unsigned int val = snd_soc_read(codec, mc->reg);
        unsigned int *select;

        switch (mc->reg) {
        case M98090_REG_MIC1_INPUT_LEVEL:
                select = &(max98090->pa1en);
                break;
        case M98090_REG_MIC2_INPUT_LEVEL:
                select = &(max98090->pa2en);
                break;
        case M98090_REG_ADC_SIDETONE:
                select = &(max98090->sidetone);
                break;
        default:
                return -EINVAL;
        }

        val = (val >> mc->shift) & mask;

        if (val >= 1) {
                /* If on, return the volume */
                val = val - 1;
                *select = val;
        } else {
                /* If off, return last stored value */
                val = *select;
        }

        ucontrol->value.integer.value[0] = val;
        return 0;
}

static int max98090_put_enab_tlv(struct snd_kcontrol *kcontrol,
                                struct snd_ctl_elem_value *ucontrol)
{
        struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
        struct max98090_priv *max98090 = snd_soc_codec_get_drvdata(codec);
        struct soc_mixer_control *mc =
                (struct soc_mixer_control *)kcontrol->private_value;
        unsigned int mask = (1 << fls(mc->max)) - 1;
        unsigned int sel = ucontrol->value.integer.value[0];
        unsigned int val = snd_soc_read(codec, mc->reg);
        unsigned int *select;

        switch (mc->reg) {
        case M98090_REG_MIC1_INPUT_LEVEL:
                select = &(max98090->pa1en);
                break;
        case M98090_REG_MIC2_INPUT_LEVEL:
                select = &(max98090->pa2en);
                break;
        case M98090_REG_ADC_SIDETONE:
                select = &(max98090->sidetone);
                break;
        default:
                return -EINVAL;
        }

        val = (val >> mc->shift) & mask;

        *select = sel;

        /* Setting a volume is only valid if it is already On */
        if (val >= 1) {
                sel = sel + 1;
        } else {
                /* Write what was already there */
                sel = val;
        }

        snd_soc_update_bits(codec, mc->reg,
                mask << mc->shift,
                sel << mc->shift);

        return 0;
}

static const char *max98090_perf_pwr_text[] =
        { "High Performance", "Low Power" };
static const char *max98090_pwr_perf_text[] =
        { "Low Power", "High Performance" };

static SOC_ENUM_SINGLE_DECL(max98090_vcmbandgap_enum,
                            M98090_REG_BIAS_CONTROL,
                            M98090_VCM_MODE_SHIFT,
                            max98090_pwr_perf_text);

static const char *max98090_osr128_text[] = { "64*fs", "128*fs" };

static SOC_ENUM_SINGLE_DECL(max98090_osr128_enum,
                            M98090_REG_ADC_CONTROL,
                            M98090_OSR128_SHIFT,
                            max98090_osr128_text);

static const char *max98090_mode_text[] = { "Voice", "Music" };

static SOC_ENUM_SINGLE_DECL(max98090_mode_enum,
                            M98090_REG_FILTER_CONFIG,
                            M98090_MODE_SHIFT,
                            max98090_mode_text);

static SOC_ENUM_SINGLE_DECL(max98090_filter_dmic34mode_enum,
                            M98090_REG_FILTER_CONFIG,
                            M98090_FLT_DMIC34MODE_SHIFT,
                            max98090_mode_text);

static const char *max98090_drcatk_text[] =
        { "0.5ms", "1ms", "5ms", "10ms", "25ms", "50ms", "100ms", "200ms" };

static SOC_ENUM_SINGLE_DECL(max98090_drcatk_enum,
                            M98090_REG_DRC_TIMING,
                            M98090_DRCATK_SHIFT,
                            max98090_drcatk_text);

static const char *max98090_drcrls_text[] =
        { "8s", "4s", "2s", "1s", "0.5s", "0.25s", "0.125s", "0.0625s" };

static SOC_ENUM_SINGLE_DECL(max98090_drcrls_enum,
                            M98090_REG_DRC_TIMING,
                            M98090_DRCRLS_SHIFT,
                            max98090_drcrls_text);

static const char *max98090_alccmp_text[] =
        { "1:1", "1:1.5", "1:2", "1:4", "1:INF" };

static SOC_ENUM_SINGLE_DECL(max98090_alccmp_enum,
                            M98090_REG_DRC_COMPRESSOR,
                            M98090_DRCCMP_SHIFT,
                            max98090_alccmp_text);

static const char *max98090_drcexp_text[] = { "1:1", "2:1", "3:1" };

static SOC_ENUM_SINGLE_DECL(max98090_drcexp_enum,
                            M98090_REG_DRC_EXPANDER,
                            M98090_DRCEXP_SHIFT,
                            max98090_drcexp_text);

static SOC_ENUM_SINGLE_DECL(max98090_dac_perfmode_enum,
                            M98090_REG_DAC_CONTROL,
                            M98090_PERFMODE_SHIFT,
                            max98090_perf_pwr_text);

static SOC_ENUM_SINGLE_DECL(max98090_dachp_enum,
                            M98090_REG_DAC_CONTROL,
                            M98090_DACHP_SHIFT,
                            max98090_pwr_perf_text);

static SOC_ENUM_SINGLE_DECL(max98090_adchp_enum,
                            M98090_REG_ADC_CONTROL,
                            M98090_ADCHP_SHIFT,
                            max98090_pwr_perf_text);

static const struct snd_kcontrol_new max98090_snd_controls[] = {
        SOC_ENUM("MIC Bias VCM Bandgap", max98090_vcmbandgap_enum),

        SOC_SINGLE("DMIC MIC Comp Filter Config", M98090_REG_DIGITAL_MIC_CONFIG,
                M98090_DMIC_COMP_SHIFT, M98090_DMIC_COMP_NUM - 1, 0),

        SOC_SINGLE_EXT_TLV("MIC1 Boost Volume",
                M98090_REG_MIC1_INPUT_LEVEL, M98090_MIC_PA1EN_SHIFT,
                M98090_MIC_PA1EN_NUM - 1, 0, max98090_get_enab_tlv,
                max98090_put_enab_tlv, max98090_micboost_tlv),

        SOC_SINGLE_EXT_TLV("MIC2 Boost Volume",
                M98090_REG_MIC2_INPUT_LEVEL, M98090_MIC_PA2EN_SHIFT,
                M98090_MIC_PA2EN_NUM - 1, 0, max98090_get_enab_tlv,
                max98090_put_enab_tlv, max98090_micboost_tlv),

        SOC_SINGLE_TLV("MIC1 Volume", M98090_REG_MIC1_INPUT_LEVEL,
                M98090_MIC_PGAM1_SHIFT, M98090_MIC_PGAM1_NUM - 1, 1,
                max98090_mic_tlv),

        SOC_SINGLE_TLV("MIC2 Volume", M98090_REG_MIC2_INPUT_LEVEL,
                M98090_MIC_PGAM2_SHIFT, M98090_MIC_PGAM2_NUM - 1, 1,
                max98090_mic_tlv),

        SOC_SINGLE_RANGE_TLV("LINEA Single Ended Volume",
                M98090_REG_LINE_INPUT_LEVEL, M98090_MIXG135_SHIFT, 0,
                M98090_MIXG135_NUM - 1, 1, max98090_line_single_ended_tlv),

        SOC_SINGLE_RANGE_TLV("LINEB Single Ended Volume",
                M98090_REG_LINE_INPUT_LEVEL, M98090_MIXG246_SHIFT, 0,
                M98090_MIXG246_NUM - 1, 1, max98090_line_single_ended_tlv),

        SOC_SINGLE_RANGE_TLV("LINEA Volume", M98090_REG_LINE_INPUT_LEVEL,
                M98090_LINAPGA_SHIFT, 0, M98090_LINAPGA_NUM - 1, 1,
                max98090_line_tlv),

        SOC_SINGLE_RANGE_TLV("LINEB Volume", M98090_REG_LINE_INPUT_LEVEL,
                M98090_LINBPGA_SHIFT, 0, M98090_LINBPGA_NUM - 1, 1,
                max98090_line_tlv),

        SOC_SINGLE("LINEA Ext Resistor Gain Mode", M98090_REG_INPUT_MODE,
                M98090_EXTBUFA_SHIFT, M98090_EXTBUFA_NUM - 1, 0),
        SOC_SINGLE("LINEB Ext Resistor Gain Mode", M98090_REG_INPUT_MODE,
                M98090_EXTBUFB_SHIFT, M98090_EXTBUFB_NUM - 1, 0),

        SOC_SINGLE_TLV("ADCL Boost Volume", M98090_REG_LEFT_ADC_LEVEL,
                M98090_AVLG_SHIFT, M98090_AVLG_NUM - 1, 0,
                max98090_avg_tlv),
        SOC_SINGLE_TLV("ADCR Boost Volume", M98090_REG_RIGHT_ADC_LEVEL,
                M98090_AVRG_SHIFT, M98090_AVLG_NUM - 1, 0,
                max98090_avg_tlv),

        SOC_SINGLE_TLV("ADCL Volume", M98090_REG_LEFT_ADC_LEVEL,
                M98090_AVL_SHIFT, M98090_AVL_NUM - 1, 1,
                max98090_av_tlv),
        SOC_SINGLE_TLV("ADCR Volume", M98090_REG_RIGHT_ADC_LEVEL,
                M98090_AVR_SHIFT, M98090_AVR_NUM - 1, 1,
                max98090_av_tlv),

        SOC_ENUM("ADC Oversampling Rate", max98090_osr128_enum),
        SOC_SINGLE("ADC Quantizer Dither", M98090_REG_ADC_CONTROL,
                M98090_ADCDITHER_SHIFT, M98090_ADCDITHER_NUM - 1, 0),
        SOC_ENUM("ADC High Performance Mode", max98090_adchp_enum),

        SOC_SINGLE("DAC Mono Mode", M98090_REG_IO_CONFIGURATION,
                M98090_DMONO_SHIFT, M98090_DMONO_NUM - 1, 0),
        SOC_SINGLE("SDIN Mode", M98090_REG_IO_CONFIGURATION,
                M98090_SDIEN_SHIFT, M98090_SDIEN_NUM - 1, 0),
        SOC_SINGLE("SDOUT Mode", M98090_REG_IO_CONFIGURATION,
                M98090_SDOEN_SHIFT, M98090_SDOEN_NUM - 1, 0),
        SOC_SINGLE("SDOUT Hi-Z Mode", M98090_REG_IO_CONFIGURATION,
                M98090_HIZOFF_SHIFT, M98090_HIZOFF_NUM - 1, 1),
        SOC_ENUM("Filter Mode", max98090_mode_enum),
        SOC_SINGLE("Record Path DC Blocking", M98090_REG_FILTER_CONFIG,
                M98090_AHPF_SHIFT, M98090_AHPF_NUM - 1, 0),
        SOC_SINGLE("Playback Path DC Blocking", M98090_REG_FILTER_CONFIG,
                M98090_DHPF_SHIFT, M98090_DHPF_NUM - 1, 0),
        SOC_SINGLE_TLV("Digital BQ Volume", M98090_REG_ADC_BIQUAD_LEVEL,
                M98090_AVBQ_SHIFT, M98090_AVBQ_NUM - 1, 1, max98090_dv_tlv),
        SOC_SINGLE_EXT_TLV("Digital Sidetone Volume",
                M98090_REG_ADC_SIDETONE, M98090_DVST_SHIFT,
                M98090_DVST_NUM - 1, 1, max98090_get_enab_tlv,
                max98090_put_enab_tlv, max98090_sdg_tlv),
        SOC_SINGLE_TLV("Digital Coarse Volume", M98090_REG_DAI_PLAYBACK_LEVEL,
                M98090_DVG_SHIFT, M98090_DVG_NUM - 1, 0,
                max98090_dvg_tlv),
        SOC_SINGLE_TLV("Digital Volume", M98090_REG_DAI_PLAYBACK_LEVEL,
                M98090_DV_SHIFT, M98090_DV_NUM - 1, 1,
                max98090_dv_tlv),
        SND_SOC_BYTES("EQ Coefficients", M98090_REG_EQUALIZER_BASE, 105),
        SOC_SINGLE("Digital EQ 3 Band Switch", M98090_REG_DSP_FILTER_ENABLE,
                M98090_EQ3BANDEN_SHIFT, M98090_EQ3BANDEN_NUM - 1, 0),
        SOC_SINGLE("Digital EQ 5 Band Switch", M98090_REG_DSP_FILTER_ENABLE,
                M98090_EQ5BANDEN_SHIFT, M98090_EQ5BANDEN_NUM - 1, 0),
        SOC_SINGLE("Digital EQ 7 Band Switch", M98090_REG_DSP_FILTER_ENABLE,
                M98090_EQ7BANDEN_SHIFT, M98090_EQ7BANDEN_NUM - 1, 0),
        SOC_SINGLE("Digital EQ Clipping Detection", M98090_REG_DAI_PLAYBACK_LEVEL_EQ,
                M98090_EQCLPN_SHIFT, M98090_EQCLPN_NUM - 1,
                1),
        SOC_SINGLE_TLV("Digital EQ Volume", M98090_REG_DAI_PLAYBACK_LEVEL_EQ,
                M98090_DVEQ_SHIFT, M98090_DVEQ_NUM - 1, 1,
                max98090_dv_tlv),

        SOC_SINGLE("ALC Enable", M98090_REG_DRC_TIMING,
                M98090_DRCEN_SHIFT, M98090_DRCEN_NUM - 1, 0),
        SOC_ENUM("ALC Attack Time", max98090_drcatk_enum),
        SOC_ENUM("ALC Release Time", max98090_drcrls_enum),
        SOC_SINGLE_TLV("ALC Make Up Volume", M98090_REG_DRC_GAIN,
                M98090_DRCG_SHIFT, M98090_DRCG_NUM - 1, 0,
                max98090_alcmakeup_tlv),
        SOC_ENUM("ALC Compression Ratio", max98090_alccmp_enum),
        SOC_ENUM("ALC Expansion Ratio", max98090_drcexp_enum),
        SOC_SINGLE_TLV("ALC Compression Threshold Volume",
                M98090_REG_DRC_COMPRESSOR, M98090_DRCTHC_SHIFT,
                M98090_DRCTHC_NUM - 1, 1, max98090_alccomp_tlv),
        SOC_SINGLE_TLV("ALC Expansion Threshold Volume",
                M98090_REG_DRC_EXPANDER, M98090_DRCTHE_SHIFT,
                M98090_DRCTHE_NUM - 1, 1, max98090_drcexp_tlv),

        SOC_ENUM("DAC HP Playback Performance Mode",
                max98090_dac_perfmode_enum),
        SOC_ENUM("DAC High Performance Mode", max98090_dachp_enum),

        SOC_SINGLE_TLV("Headphone Left Mixer Volume",
                M98090_REG_HP_CONTROL, M98090_MIXHPLG_SHIFT,
                M98090_MIXHPLG_NUM - 1, 1, max98090_mixout_tlv),
        SOC_SINGLE_TLV("Headphone Right Mixer Volume",
                M98090_REG_HP_CONTROL, M98090_MIXHPRG_SHIFT,
                M98090_MIXHPRG_NUM - 1, 1, max98090_mixout_tlv),

        SOC_SINGLE_TLV("Speaker Left Mixer Volume",
                M98090_REG_SPK_CONTROL, M98090_MIXSPLG_SHIFT,
                M98090_MIXSPLG_NUM - 1, 1, max98090_mixout_tlv),
        SOC_SINGLE_TLV("Speaker Right Mixer Volume",
                M98090_REG_SPK_CONTROL, M98090_MIXSPRG_SHIFT,
                M98090_MIXSPRG_NUM - 1, 1, max98090_mixout_tlv),

        SOC_SINGLE_TLV("Receiver Left Mixer Volume",
                M98090_REG_RCV_LOUTL_CONTROL, M98090_MIXRCVLG_SHIFT,
                M98090_MIXRCVLG_NUM - 1, 1, max98090_mixout_tlv),
        SOC_SINGLE_TLV("Receiver Right Mixer Volume",
                M98090_REG_LOUTR_CONTROL, M98090_MIXRCVRG_SHIFT,
                M98090_MIXRCVRG_NUM - 1, 1, max98090_mixout_tlv),

        SOC_DOUBLE_R_TLV("Headphone Volume", M98090_REG_LEFT_HP_VOLUME,
                M98090_REG_RIGHT_HP_VOLUME, M98090_HPVOLL_SHIFT,
                M98090_HPVOLL_NUM - 1, 0, max98090_hp_tlv),

        SOC_DOUBLE_R_RANGE_TLV("Speaker Volume",
                M98090_REG_LEFT_SPK_VOLUME, M98090_REG_RIGHT_SPK_VOLUME,
                M98090_SPVOLL_SHIFT, 24, M98090_SPVOLL_NUM - 1 + 24,
                0, max98090_spk_tlv),

        SOC_DOUBLE_R_TLV("Receiver Volume", M98090_REG_RCV_LOUTL_VOLUME,
                M98090_REG_LOUTR_VOLUME, M98090_RCVLVOL_SHIFT,
                M98090_RCVLVOL_NUM - 1, 0, max98090_rcv_lout_tlv),

        SOC_SINGLE("Headphone Left Switch", M98090_REG_LEFT_HP_VOLUME,
                M98090_HPLM_SHIFT, 1, 1),
        SOC_SINGLE("Headphone Right Switch", M98090_REG_RIGHT_HP_VOLUME,
                M98090_HPRM_SHIFT, 1, 1),

        SOC_SINGLE("Speaker Left Switch", M98090_REG_LEFT_SPK_VOLUME,
                M98090_SPLM_SHIFT, 1, 1),
        SOC_SINGLE("Speaker Right Switch", M98090_REG_RIGHT_SPK_VOLUME,
                M98090_SPRM_SHIFT, 1, 1),

        SOC_SINGLE("Receiver Left Switch", M98090_REG_RCV_LOUTL_VOLUME,
                M98090_RCVLM_SHIFT, 1, 1),
        SOC_SINGLE("Receiver Right Switch", M98090_REG_LOUTR_VOLUME,
                M98090_RCVRM_SHIFT, 1, 1),

        SOC_SINGLE("Zero-Crossing Detection", M98090_REG_LEVEL_CONTROL,
                M98090_ZDENN_SHIFT, M98090_ZDENN_NUM - 1, 1),
        SOC_SINGLE("Enhanced Vol Smoothing", M98090_REG_LEVEL_CONTROL,
                M98090_VS2ENN_SHIFT, M98090_VS2ENN_NUM - 1, 1),
        SOC_SINGLE("Volume Adjustment Smoothing", M98090_REG_LEVEL_CONTROL,
                M98090_VSENN_SHIFT, M98090_VSENN_NUM - 1, 1),

        SND_SOC_BYTES("Biquad Coefficients", M98090_REG_RECORD_BIQUAD_BASE, 15),
        SOC_SINGLE("Biquad Switch", M98090_REG_DSP_FILTER_ENABLE,
                M98090_ADCBQEN_SHIFT, M98090_ADCBQEN_NUM - 1, 0),
};

static const struct snd_kcontrol_new max98091_snd_controls[] = {

        SOC_SINGLE("DMIC34 Zeropad", M98090_REG_SAMPLE_RATE,
                M98090_DMIC34_ZEROPAD_SHIFT,
                M98090_DMIC34_ZEROPAD_NUM - 1, 0),

        SOC_ENUM("Filter DMIC34 Mode", max98090_filter_dmic34mode_enum),
        SOC_SINGLE("DMIC34 DC Blocking", M98090_REG_FILTER_CONFIG,
                M98090_FLT_DMIC34HPF_SHIFT,
                M98090_FLT_DMIC34HPF_NUM - 1, 0),

        SOC_SINGLE_TLV("DMIC3 Boost Volume", M98090_REG_DMIC3_VOLUME,
                M98090_DMIC_AV3G_SHIFT, M98090_DMIC_AV3G_NUM - 1, 0,
                max98090_avg_tlv),
        SOC_SINGLE_TLV("DMIC4 Boost Volume", M98090_REG_DMIC4_VOLUME,
                M98090_DMIC_AV4G_SHIFT, M98090_DMIC_AV4G_NUM - 1, 0,
                max98090_avg_tlv),

        SOC_SINGLE_TLV("DMIC3 Volume", M98090_REG_DMIC3_VOLUME,
                M98090_DMIC_AV3_SHIFT, M98090_DMIC_AV3_NUM - 1, 1,
                max98090_av_tlv),
        SOC_SINGLE_TLV("DMIC4 Volume", M98090_REG_DMIC4_VOLUME,
                M98090_DMIC_AV4_SHIFT, M98090_DMIC_AV4_NUM - 1, 1,
                max98090_av_tlv),

        SND_SOC_BYTES("DMIC34 Biquad Coefficients",
                M98090_REG_DMIC34_BIQUAD_BASE, 15),
        SOC_SINGLE("DMIC34 Biquad Switch", M98090_REG_DSP_FILTER_ENABLE,
                M98090_DMIC34BQEN_SHIFT, M98090_DMIC34BQEN_NUM - 1, 0),

        SOC_SINGLE_TLV("DMIC34 BQ PreAttenuation Volume",
                M98090_REG_DMIC34_BQ_PREATTEN, M98090_AV34BQ_SHIFT,
                M98090_AV34BQ_NUM - 1, 1, max98090_dv_tlv),
};

static int max98090_micinput_event(struct snd_soc_dapm_widget *w,
                                 struct snd_kcontrol *kcontrol, int event)
{
        struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
        struct max98090_priv *max98090 = snd_soc_codec_get_drvdata(codec);

        unsigned int val = snd_soc_read(codec, w->reg);

        if (w->reg == M98090_REG_MIC1_INPUT_LEVEL)
                val = (val & M98090_MIC_PA1EN_MASK) >> M98090_MIC_PA1EN_SHIFT;
        else
                val = (val & M98090_MIC_PA2EN_MASK) >> M98090_MIC_PA2EN_SHIFT;

        if (val >= 1) {
                if (w->reg == M98090_REG_MIC1_INPUT_LEVEL) {
                        max98090->pa1en = val - 1; /* Update for volatile */
                } else {
                        max98090->pa2en = val - 1; /* Update for volatile */
                }
        }

        switch (event) {
        case SND_SOC_DAPM_POST_PMU:
                /* If turning on, set to most recently selected volume */
                if (w->reg == M98090_REG_MIC1_INPUT_LEVEL)
                        val = max98090->pa1en + 1;
                else
                        val = max98090->pa2en + 1;
                break;
        case SND_SOC_DAPM_POST_PMD:
                /* If turning off, turn off */
                val = 0;
                break;
        default:
                return -EINVAL;
        }

        if (w->reg == M98090_REG_MIC1_INPUT_LEVEL)
                snd_soc_update_bits(codec, w->reg, M98090_MIC_PA1EN_MASK,
                        val << M98090_MIC_PA1EN_SHIFT);
        else
                snd_soc_update_bits(codec, w->reg, M98090_MIC_PA2EN_MASK,
                        val << M98090_MIC_PA2EN_SHIFT);

        return 0;
}

static const char *mic1_mux_text[] = { "IN12", "IN56" };

static SOC_ENUM_SINGLE_DECL(mic1_mux_enum,
                            M98090_REG_INPUT_MODE,
                            M98090_EXTMIC1_SHIFT,
                            mic1_mux_text);

static const struct snd_kcontrol_new max98090_mic1_mux =
        SOC_DAPM_ENUM("MIC1 Mux", mic1_mux_enum);

static const char *mic2_mux_text[] = { "IN34", "IN56" };

static SOC_ENUM_SINGLE_DECL(mic2_mux_enum,
                            M98090_REG_INPUT_MODE,
                            M98090_EXTMIC2_SHIFT,
                            mic2_mux_text);

static const struct snd_kcontrol_new max98090_mic2_mux =
        SOC_DAPM_ENUM("MIC2 Mux", mic2_mux_enum);

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

static SOC_ENUM_SINGLE_VIRT_DECL(dmic_mux_enum, dmic_mux_text);

static const struct snd_kcontrol_new max98090_dmic_mux =
        SOC_DAPM_ENUM("DMIC Mux", dmic_mux_enum);

static const char *max98090_micpre_text[] = { "Off", "On" };

static SOC_ENUM_SINGLE_DECL(max98090_pa1en_enum,
                            M98090_REG_MIC1_INPUT_LEVEL,
                            M98090_MIC_PA1EN_SHIFT,
                            max98090_micpre_text);

static SOC_ENUM_SINGLE_DECL(max98090_pa2en_enum,
                            M98090_REG_MIC2_INPUT_LEVEL,
                            M98090_MIC_PA2EN_SHIFT,
                            max98090_micpre_text);

/* LINEA mixer switch */
static const struct snd_kcontrol_new max98090_linea_mixer_controls[] = {
        SOC_DAPM_SINGLE("IN1 Switch", M98090_REG_LINE_INPUT_CONFIG,
                M98090_IN1SEEN_SHIFT, 1, 0),
        SOC_DAPM_SINGLE("IN3 Switch", M98090_REG_LINE_INPUT_CONFIG,
                M98090_IN3SEEN_SHIFT, 1, 0),
        SOC_DAPM_SINGLE("IN5 Switch", M98090_REG_LINE_INPUT_CONFIG,
                M98090_IN5SEEN_SHIFT, 1, 0),
        SOC_DAPM_SINGLE("IN34 Switch", M98090_REG_LINE_INPUT_CONFIG,
                M98090_IN34DIFF_SHIFT, 1, 0),
};

/* LINEB mixer switch */
static const struct snd_kcontrol_new max98090_lineb_mixer_controls[] = {
        SOC_DAPM_SINGLE("IN2 Switch", M98090_REG_LINE_INPUT_CONFIG,
                M98090_IN2SEEN_SHIFT, 1, 0),
        SOC_DAPM_SINGLE("IN4 Switch", M98090_REG_LINE_INPUT_CONFIG,
                M98090_IN4SEEN_SHIFT, 1, 0),
        SOC_DAPM_SINGLE("IN6 Switch", M98090_REG_LINE_INPUT_CONFIG,
                M98090_IN6SEEN_SHIFT, 1, 0),
        SOC_DAPM_SINGLE("IN56 Switch", M98090_REG_LINE_INPUT_CONFIG,
                M98090_IN56DIFF_SHIFT, 1, 0),
};

/* Left ADC mixer switch */
static const struct snd_kcontrol_new max98090_left_adc_mixer_controls[] = {
        SOC_DAPM_SINGLE("IN12 Switch", M98090_REG_LEFT_ADC_MIXER,
                M98090_MIXADL_IN12DIFF_SHIFT, 1, 0),
        SOC_DAPM_SINGLE("IN34 Switch", M98090_REG_LEFT_ADC_MIXER,
                M98090_MIXADL_IN34DIFF_SHIFT, 1, 0),
        SOC_DAPM_SINGLE("IN56 Switch", M98090_REG_LEFT_ADC_MIXER,
                M98090_MIXADL_IN65DIFF_SHIFT, 1, 0),
        SOC_DAPM_SINGLE("LINEA Switch", M98090_REG_LEFT_ADC_MIXER,
                M98090_MIXADL_LINEA_SHIFT, 1, 0),
        SOC_DAPM_SINGLE("LINEB Switch", M98090_REG_LEFT_ADC_MIXER,
                M98090_MIXADL_LINEB_SHIFT, 1, 0),
        SOC_DAPM_SINGLE("MIC1 Switch", M98090_REG_LEFT_ADC_MIXER,
                M98090_MIXADL_MIC1_SHIFT, 1, 0),
        SOC_DAPM_SINGLE("MIC2 Switch", M98090_REG_LEFT_ADC_MIXER,
                M98090_MIXADL_MIC2_SHIFT, 1, 0),
};

/* Right ADC mixer switch */
static const struct snd_kcontrol_new max98090_right_adc_mixer_controls[] = {
        SOC_DAPM_SINGLE("IN12 Switch", M98090_REG_RIGHT_ADC_MIXER,
                M98090_MIXADR_IN12DIFF_SHIFT, 1, 0),
        SOC_DAPM_SINGLE("IN34 Switch", M98090_REG_RIGHT_ADC_MIXER,
                M98090_MIXADR_IN34DIFF_SHIFT, 1, 0),
        SOC_DAPM_SINGLE("IN56 Switch", M98090_REG_RIGHT_ADC_MIXER,
                M98090_MIXADR_IN65DIFF_SHIFT, 1, 0),
        SOC_DAPM_SINGLE("LINEA Switch", M98090_REG_RIGHT_ADC_MIXER,
                M98090_MIXADR_LINEA_SHIFT, 1, 0),
        SOC_DAPM_SINGLE("LINEB Switch", M98090_REG_RIGHT_ADC_MIXER,
                M98090_MIXADR_LINEB_SHIFT, 1, 0),
        SOC_DAPM_SINGLE("MIC1 Switch", M98090_REG_RIGHT_ADC_MIXER,
                M98090_MIXADR_MIC1_SHIFT, 1, 0),
        SOC_DAPM_SINGLE("MIC2 Switch", M98090_REG_RIGHT_ADC_MIXER,
                M98090_MIXADR_MIC2_SHIFT, 1, 0),
};

static const char *lten_mux_text[] = { "Normal", "Loopthrough" };

static SOC_ENUM_SINGLE_DECL(ltenl_mux_enum,
                            M98090_REG_IO_CONFIGURATION,
                            M98090_LTEN_SHIFT,
                            lten_mux_text);

static SOC_ENUM_SINGLE_DECL(ltenr_mux_enum,
                            M98090_REG_IO_CONFIGURATION,
                            M98090_LTEN_SHIFT,
                            lten_mux_text);

static const struct snd_kcontrol_new max98090_ltenl_mux =
        SOC_DAPM_ENUM("LTENL Mux", ltenl_mux_enum);

static const struct snd_kcontrol_new max98090_ltenr_mux =
        SOC_DAPM_ENUM("LTENR Mux", ltenr_mux_enum);

static const char *lben_mux_text[] = { "Normal", "Loopback" };

static SOC_ENUM_SINGLE_DECL(lbenl_mux_enum,
                            M98090_REG_IO_CONFIGURATION,
                            M98090_LBEN_SHIFT,
                            lben_mux_text);

static SOC_ENUM_SINGLE_DECL(lbenr_mux_enum,
                            M98090_REG_IO_CONFIGURATION,
                            M98090_LBEN_SHIFT,
                            lben_mux_text);

static const struct snd_kcontrol_new max98090_lbenl_mux =
        SOC_DAPM_ENUM("LBENL Mux", lbenl_mux_enum);

static const struct snd_kcontrol_new max98090_lbenr_mux =
        SOC_DAPM_ENUM("LBENR Mux", lbenr_mux_enum);

static const char *stenl_mux_text[] = { "Normal", "Sidetone Left" };

static const char *stenr_mux_text[] = { "Normal", "Sidetone Right" };

static SOC_ENUM_SINGLE_DECL(stenl_mux_enum,
                            M98090_REG_ADC_SIDETONE,
                            M98090_DSTSL_SHIFT,
                            stenl_mux_text);

static SOC_ENUM_SINGLE_DECL(stenr_mux_enum,
                            M98090_REG_ADC_SIDETONE,
                            M98090_DSTSR_SHIFT,
                            stenr_mux_text);

static const struct snd_kcontrol_new max98090_stenl_mux =
        SOC_DAPM_ENUM("STENL Mux", stenl_mux_enum);

static const struct snd_kcontrol_new max98090_stenr_mux =
        SOC_DAPM_ENUM("STENR Mux", stenr_mux_enum);

/* Left speaker mixer switch */
static const struct
        snd_kcontrol_new max98090_left_speaker_mixer_controls[] = {
        SOC_DAPM_SINGLE("Left DAC Switch", M98090_REG_LEFT_SPK_MIXER,
                M98090_MIXSPL_DACL_SHIFT, 1, 0),
        SOC_DAPM_SINGLE("Right DAC Switch", M98090_REG_LEFT_SPK_MIXER,
                M98090_MIXSPL_DACR_SHIFT, 1, 0),
        SOC_DAPM_SINGLE("LINEA Switch", M98090_REG_LEFT_SPK_MIXER,
                M98090_MIXSPL_LINEA_SHIFT, 1, 0),
        SOC_DAPM_SINGLE("LINEB Switch", M98090_REG_LEFT_SPK_MIXER,
                M98090_MIXSPL_LINEB_SHIFT, 1, 0),
        SOC_DAPM_SINGLE("MIC1 Switch", M98090_REG_LEFT_SPK_MIXER,
                M98090_MIXSPL_MIC1_SHIFT, 1, 0),
        SOC_DAPM_SINGLE("MIC2 Switch", M98090_REG_LEFT_SPK_MIXER,
                M98090_MIXSPL_MIC2_SHIFT, 1, 0),
};

/* Right speaker mixer switch */
static const struct
        snd_kcontrol_new max98090_right_speaker_mixer_controls[] = {
        SOC_DAPM_SINGLE("Left DAC Switch", M98090_REG_RIGHT_SPK_MIXER,
                M98090_MIXSPR_DACL_SHIFT, 1, 0),
        SOC_DAPM_SINGLE("Right DAC Switch", M98090_REG_RIGHT_SPK_MIXER,
                M98090_MIXSPR_DACR_SHIFT, 1, 0),
        SOC_DAPM_SINGLE("LINEA Switch", M98090_REG_RIGHT_SPK_MIXER,
                M98090_MIXSPR_LINEA_SHIFT, 1, 0),
        SOC_DAPM_SINGLE("LINEB Switch", M98090_REG_RIGHT_SPK_MIXER,
                M98090_MIXSPR_LINEB_SHIFT, 1, 0),
        SOC_DAPM_SINGLE("MIC1 Switch", M98090_REG_RIGHT_SPK_MIXER,
                M98090_MIXSPR_MIC1_SHIFT, 1, 0),
        SOC_DAPM_SINGLE("MIC2 Switch", M98090_REG_RIGHT_SPK_MIXER,
                M98090_MIXSPR_MIC2_SHIFT, 1, 0),
};

/* Left headphone mixer switch */
static const struct snd_kcontrol_new max98090_left_hp_mixer_controls[] = {
        SOC_DAPM_SINGLE("Left DAC Switch", M98090_REG_LEFT_HP_MIXER,
                M98090_MIXHPL_DACL_SHIFT, 1, 0),
        SOC_DAPM_SINGLE("Right DAC Switch", M98090_REG_LEFT_HP_MIXER,
                M98090_MIXHPL_DACR_SHIFT, 1, 0),
        SOC_DAPM_SINGLE("LINEA Switch", M98090_REG_LEFT_HP_MIXER,
                M98090_MIXHPL_LINEA_SHIFT, 1, 0),
        SOC_DAPM_SINGLE("LINEB Switch", M98090_REG_LEFT_HP_MIXER,
                M98090_MIXHPL_LINEB_SHIFT, 1, 0),
        SOC_DAPM_SINGLE("MIC1 Switch", M98090_REG_LEFT_HP_MIXER,
                M98090_MIXHPL_MIC1_SHIFT, 1, 0),
        SOC_DAPM_SINGLE("MIC2 Switch", M98090_REG_LEFT_HP_MIXER,
                M98090_MIXHPL_MIC2_SHIFT, 1, 0),
};

/* Right headphone mixer switch */
static const struct snd_kcontrol_new max98090_right_hp_mixer_controls[] = {
        SOC_DAPM_SINGLE("Left DAC Switch", M98090_REG_RIGHT_HP_MIXER,
                M98090_MIXHPR_DACL_SHIFT, 1, 0),
        SOC_DAPM_SINGLE("Right DAC Switch", M98090_REG_RIGHT_HP_MIXER,
                M98090_MIXHPR_DACR_SHIFT, 1, 0),
        SOC_DAPM_SINGLE("LINEA Switch", M98090_REG_RIGHT_HP_MIXER,
                M98090_MIXHPR_LINEA_SHIFT, 1, 0),
        SOC_DAPM_SINGLE("LINEB Switch", M98090_REG_RIGHT_HP_MIXER,
                M98090_MIXHPR_LINEB_SHIFT, 1, 0),
        SOC_DAPM_SINGLE("MIC1 Switch", M98090_REG_RIGHT_HP_MIXER,
                M98090_MIXHPR_MIC1_SHIFT, 1, 0),
        SOC_DAPM_SINGLE("MIC2 Switch", M98090_REG_RIGHT_HP_MIXER,
                M98090_MIXHPR_MIC2_SHIFT, 1, 0),
};

/* Left receiver mixer switch */
static const struct snd_kcontrol_new max98090_left_rcv_mixer_controls[] = {
        SOC_DAPM_SINGLE("Left DAC Switch", M98090_REG_RCV_LOUTL_MIXER,
                M98090_MIXRCVL_DACL_SHIFT, 1, 0),
        SOC_DAPM_SINGLE("Right DAC Switch", M98090_REG_RCV_LOUTL_MIXER,
                M98090_MIXRCVL_DACR_SHIFT, 1, 0),
        SOC_DAPM_SINGLE("LINEA Switch", M98090_REG_RCV_LOUTL_MIXER,
                M98090_MIXRCVL_LINEA_SHIFT, 1, 0),
        SOC_DAPM_SINGLE("LINEB Switch", M98090_REG_RCV_LOUTL_MIXER,
                M98090_MIXRCVL_LINEB_SHIFT, 1, 0),
        SOC_DAPM_SINGLE("MIC1 Switch", M98090_REG_RCV_LOUTL_MIXER,
                M98090_MIXRCVL_MIC1_SHIFT, 1, 0),
        SOC_DAPM_SINGLE("MIC2 Switch", M98090_REG_RCV_LOUTL_MIXER,
                M98090_MIXRCVL_MIC2_SHIFT, 1, 0),
};

/* Right receiver mixer switch */
static const struct snd_kcontrol_new max98090_right_rcv_mixer_controls[] = {
        SOC_DAPM_SINGLE("Left DAC Switch", M98090_REG_LOUTR_MIXER,
                M98090_MIXRCVR_DACL_SHIFT, 1, 0),
        SOC_DAPM_SINGLE("Right DAC Switch", M98090_REG_LOUTR_MIXER,
                M98090_MIXRCVR_DACR_SHIFT, 1, 0),
        SOC_DAPM_SINGLE("LINEA Switch", M98090_REG_LOUTR_MIXER,
                M98090_MIXRCVR_LINEA_SHIFT, 1, 0),
        SOC_DAPM_SINGLE("LINEB Switch", M98090_REG_LOUTR_MIXER,
                M98090_MIXRCVR_LINEB_SHIFT, 1, 0),
        SOC_DAPM_SINGLE("MIC1 Switch", M98090_REG_LOUTR_MIXER,
                M98090_MIXRCVR_MIC1_SHIFT, 1, 0),
        SOC_DAPM_SINGLE("MIC2 Switch", M98090_REG_LOUTR_MIXER,
                M98090_MIXRCVR_MIC2_SHIFT, 1, 0),
};

static const char *linmod_mux_text[] = { "Left Only", "Left and Right" };

static SOC_ENUM_SINGLE_DECL(linmod_mux_enum,
                            M98090_REG_LOUTR_MIXER,
                            M98090_LINMOD_SHIFT,
                            linmod_mux_text);

static const struct snd_kcontrol_new max98090_linmod_mux =
        SOC_DAPM_ENUM("LINMOD Mux", linmod_mux_enum);

static const char *mixhpsel_mux_text[] = { "DAC Only", "HP Mixer" };

/*
 * This is a mux as it selects the HP output, but to DAPM it is a Mixer enable
 */
static SOC_ENUM_SINGLE_DECL(mixhplsel_mux_enum,
                            M98090_REG_HP_CONTROL,
                            M98090_MIXHPLSEL_SHIFT,
                            mixhpsel_mux_text);

static const struct snd_kcontrol_new max98090_mixhplsel_mux =
        SOC_DAPM_ENUM("MIXHPLSEL Mux", mixhplsel_mux_enum);

static SOC_ENUM_SINGLE_DECL(mixhprsel_mux_enum,
                            M98090_REG_HP_CONTROL,
                            M98090_MIXHPRSEL_SHIFT,
                            mixhpsel_mux_text);

static const struct snd_kcontrol_new max98090_mixhprsel_mux =
        SOC_DAPM_ENUM("MIXHPRSEL Mux", mixhprsel_mux_enum);

static const struct snd_soc_dapm_widget max98090_dapm_widgets[] = {
        SND_SOC_DAPM_INPUT("MIC1"),
        SND_SOC_DAPM_INPUT("MIC2"),
        SND_SOC_DAPM_INPUT("DMICL"),
        SND_SOC_DAPM_INPUT("DMICR"),
        SND_SOC_DAPM_INPUT("IN1"),
        SND_SOC_DAPM_INPUT("IN2"),
        SND_SOC_DAPM_INPUT("IN3"),
        SND_SOC_DAPM_INPUT("IN4"),
        SND_SOC_DAPM_INPUT("IN5"),
        SND_SOC_DAPM_INPUT("IN6"),
        SND_SOC_DAPM_INPUT("IN12"),
        SND_SOC_DAPM_INPUT("IN34"),
        SND_SOC_DAPM_INPUT("IN56"),

        SND_SOC_DAPM_SUPPLY("MICBIAS", M98090_REG_INPUT_ENABLE,
                M98090_MBEN_SHIFT, 0, NULL, 0),
        SND_SOC_DAPM_SUPPLY("SHDN", M98090_REG_DEVICE_SHUTDOWN,
                M98090_SHDNN_SHIFT, 0, NULL, 0),
        SND_SOC_DAPM_SUPPLY("SDIEN", M98090_REG_IO_CONFIGURATION,
                M98090_SDIEN_SHIFT, 0, NULL, 0),
        SND_SOC_DAPM_SUPPLY("SDOEN", M98090_REG_IO_CONFIGURATION,
                M98090_SDOEN_SHIFT, 0, NULL, 0),
        SND_SOC_DAPM_SUPPLY("DMICL_ENA", M98090_REG_DIGITAL_MIC_ENABLE,
                 M98090_DIGMICL_SHIFT, 0, NULL, 0),
        SND_SOC_DAPM_SUPPLY("DMICR_ENA", M98090_REG_DIGITAL_MIC_ENABLE,
                 M98090_DIGMICR_SHIFT, 0, NULL, 0),
        SND_SOC_DAPM_SUPPLY("AHPF", M98090_REG_FILTER_CONFIG,
                M98090_AHPF_SHIFT, 0, NULL, 0),

/*
 * Note: Sysclk and misc power supplies are taken care of by SHDN
 */

        SND_SOC_DAPM_MUX("MIC1 Mux", SND_SOC_NOPM,
                0, 0, &max98090_mic1_mux),

        SND_SOC_DAPM_MUX("MIC2 Mux", SND_SOC_NOPM,
                0, 0, &max98090_mic2_mux),

        SND_SOC_DAPM_MUX("DMIC Mux", SND_SOC_NOPM, 0, 0, &max98090_dmic_mux),

        SND_SOC_DAPM_PGA_E("MIC1 Input", M98090_REG_MIC1_INPUT_LEVEL,
                M98090_MIC_PA1EN_SHIFT, 0, NULL, 0, max98090_micinput_event,
                SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),

        SND_SOC_DAPM_PGA_E("MIC2 Input", M98090_REG_MIC2_INPUT_LEVEL,
                M98090_MIC_PA2EN_SHIFT, 0, NULL, 0, max98090_micinput_event,
                SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),

        SND_SOC_DAPM_MIXER("LINEA Mixer", SND_SOC_NOPM, 0, 0,
                &max98090_linea_mixer_controls[0],
                ARRAY_SIZE(max98090_linea_mixer_controls)),

        SND_SOC_DAPM_MIXER("LINEB Mixer", SND_SOC_NOPM, 0, 0,
                &max98090_lineb_mixer_controls[0],
                ARRAY_SIZE(max98090_lineb_mixer_controls)),

        SND_SOC_DAPM_PGA("LINEA Input", M98090_REG_INPUT_ENABLE,
                M98090_LINEAEN_SHIFT, 0, NULL, 0),
        SND_SOC_DAPM_PGA("LINEB Input", M98090_REG_INPUT_ENABLE,
                M98090_LINEBEN_SHIFT, 0, NULL, 0),

        SND_SOC_DAPM_MIXER("Left ADC Mixer", SND_SOC_NOPM, 0, 0,
                &max98090_left_adc_mixer_controls[0],
                ARRAY_SIZE(max98090_left_adc_mixer_controls)),

        SND_SOC_DAPM_MIXER("Right ADC Mixer", SND_SOC_NOPM, 0, 0,
                &max98090_right_adc_mixer_controls[0],
                ARRAY_SIZE(max98090_right_adc_mixer_controls)),

        SND_SOC_DAPM_ADC("ADCL", NULL, M98090_REG_INPUT_ENABLE,
                M98090_ADLEN_SHIFT, 0),
        SND_SOC_DAPM_ADC("ADCR", NULL, M98090_REG_INPUT_ENABLE,
                M98090_ADREN_SHIFT, 0),

        SND_SOC_DAPM_AIF_OUT("AIFOUTL", "HiFi Capture", 0,
                SND_SOC_NOPM, 0, 0),
        SND_SOC_DAPM_AIF_OUT("AIFOUTR", "HiFi Capture", 1,
                SND_SOC_NOPM, 0, 0),

        SND_SOC_DAPM_MUX("LBENL Mux", SND_SOC_NOPM,
                0, 0, &max98090_lbenl_mux),

        SND_SOC_DAPM_MUX("LBENR Mux", SND_SOC_NOPM,
                0, 0, &max98090_lbenr_mux),

        SND_SOC_DAPM_MUX("LTENL Mux", SND_SOC_NOPM,
                0, 0, &max98090_ltenl_mux),

        SND_SOC_DAPM_MUX("LTENR Mux", SND_SOC_NOPM,
                0, 0, &max98090_ltenr_mux),

        SND_SOC_DAPM_MUX("STENL Mux", SND_SOC_NOPM,
                0, 0, &max98090_stenl_mux),

        SND_SOC_DAPM_MUX("STENR Mux", SND_SOC_NOPM,
                0, 0, &max98090_stenr_mux),

        SND_SOC_DAPM_AIF_IN("AIFINL", "HiFi Playback", 0, SND_SOC_NOPM, 0, 0),
        SND_SOC_DAPM_AIF_IN("AIFINR", "HiFi Playback", 1, SND_SOC_NOPM, 0, 0),

        SND_SOC_DAPM_DAC("DACL", NULL, M98090_REG_OUTPUT_ENABLE,
                M98090_DALEN_SHIFT, 0),
        SND_SOC_DAPM_DAC("DACR", NULL, M98090_REG_OUTPUT_ENABLE,
                M98090_DAREN_SHIFT, 0),

        SND_SOC_DAPM_MIXER("Left Headphone Mixer", SND_SOC_NOPM, 0, 0,
                &max98090_left_hp_mixer_controls[0],
                ARRAY_SIZE(max98090_left_hp_mixer_controls)),

        SND_SOC_DAPM_MIXER("Right Headphone Mixer", SND_SOC_NOPM, 0, 0,
                &max98090_right_hp_mixer_controls[0],
                ARRAY_SIZE(max98090_right_hp_mixer_controls)),

        SND_SOC_DAPM_MIXER("Left Speaker Mixer", SND_SOC_NOPM, 0, 0,
                &max98090_left_speaker_mixer_controls[0],
                ARRAY_SIZE(max98090_left_speaker_mixer_controls)),

        SND_SOC_DAPM_MIXER("Right Speaker Mixer", SND_SOC_NOPM, 0, 0,
                &max98090_right_speaker_mixer_controls[0],
                ARRAY_SIZE(max98090_right_speaker_mixer_controls)),

        SND_SOC_DAPM_MIXER("Left Receiver Mixer", SND_SOC_NOPM, 0, 0,
                &max98090_left_rcv_mixer_controls[0],
                ARRAY_SIZE(max98090_left_rcv_mixer_controls)),

        SND_SOC_DAPM_MIXER("Right Receiver Mixer", SND_SOC_NOPM, 0, 0,
                &max98090_right_rcv_mixer_controls[0],
                ARRAY_SIZE(max98090_right_rcv_mixer_controls)),

        SND_SOC_DAPM_MUX("LINMOD Mux", M98090_REG_LOUTR_MIXER,
                M98090_LINMOD_SHIFT, 0, &max98090_linmod_mux),

        SND_SOC_DAPM_MUX("MIXHPLSEL Mux", M98090_REG_HP_CONTROL,
                M98090_MIXHPLSEL_SHIFT, 0, &max98090_mixhplsel_mux),

        SND_SOC_DAPM_MUX("MIXHPRSEL Mux", M98090_REG_HP_CONTROL,
                M98090_MIXHPRSEL_SHIFT, 0, &max98090_mixhprsel_mux),

        SND_SOC_DAPM_PGA("HP Left Out", M98090_REG_OUTPUT_ENABLE,
                M98090_HPLEN_SHIFT, 0, NULL, 0),
        SND_SOC_DAPM_PGA("HP Right Out", M98090_REG_OUTPUT_ENABLE,
                M98090_HPREN_SHIFT, 0, NULL, 0),

        SND_SOC_DAPM_PGA("SPK Left Out", M98090_REG_OUTPUT_ENABLE,
                M98090_SPLEN_SHIFT, 0, NULL, 0),
        SND_SOC_DAPM_PGA("SPK Right Out", M98090_REG_OUTPUT_ENABLE,
                M98090_SPREN_SHIFT, 0, NULL, 0),

        SND_SOC_DAPM_PGA("RCV Left Out", M98090_REG_OUTPUT_ENABLE,
                M98090_RCVLEN_SHIFT, 0, NULL, 0),
        SND_SOC_DAPM_PGA("RCV Right Out", M98090_REG_OUTPUT_ENABLE,
                M98090_RCVREN_SHIFT, 0, NULL, 0),

        SND_SOC_DAPM_OUTPUT("HPL"),
        SND_SOC_DAPM_OUTPUT("HPR"),
        SND_SOC_DAPM_OUTPUT("SPKL"),
        SND_SOC_DAPM_OUTPUT("SPKR"),
        SND_SOC_DAPM_OUTPUT("RCVL"),
        SND_SOC_DAPM_OUTPUT("RCVR"),
};

static const struct snd_soc_dapm_widget max98091_dapm_widgets[] = {
        SND_SOC_DAPM_INPUT("DMIC3"),
        SND_SOC_DAPM_INPUT("DMIC4"),

        SND_SOC_DAPM_SUPPLY("DMIC3_ENA", M98090_REG_DIGITAL_MIC_ENABLE,
                 M98090_DIGMIC3_SHIFT, 0, NULL, 0),
        SND_SOC_DAPM_SUPPLY("DMIC4_ENA", M98090_REG_DIGITAL_MIC_ENABLE,
                 M98090_DIGMIC4_SHIFT, 0, NULL, 0),
};

static const struct snd_soc_dapm_route max98090_dapm_routes[] = {
        {"MIC1 Input", NULL, "MIC1"},
        {"MIC2 Input", NULL, "MIC2"},

        {"DMICL", NULL, "DMICL_ENA"},
        {"DMICL", NULL, "DMICR_ENA"},
        {"DMICR", NULL, "DMICL_ENA"},
        {"DMICR", NULL, "DMICR_ENA"},
        {"DMICL", NULL, "AHPF"},
        {"DMICR", NULL, "AHPF"},

        /* MIC1 input mux */
        {"MIC1 Mux", "IN12", "IN12"},
        {"MIC1 Mux", "IN56", "IN56"},

        /* MIC2 input mux */
        {"MIC2 Mux", "IN34", "IN34"},
        {"MIC2 Mux", "IN56", "IN56"},

        {"MIC1 Input", NULL, "MIC1 Mux"},
        {"MIC2 Input", NULL, "MIC2 Mux"},

        /* Left ADC input mixer */
        {"Left ADC Mixer", "IN12 Switch", "IN12"},
        {"Left ADC Mixer", "IN34 Switch", "IN34"},
        {"Left ADC Mixer", "IN56 Switch", "IN56"},
        {"Left ADC Mixer", "LINEA Switch", "LINEA Input"},
        {"Left ADC Mixer", "LINEB Switch", "LINEB Input"},
        {"Left ADC Mixer", "MIC1 Switch", "MIC1 Input"},
        {"Left ADC Mixer", "MIC2 Switch", "MIC2 Input"},

        /* Right ADC input mixer */
        {"Right ADC Mixer", "IN12 Switch", "IN12"},
        {"Right ADC Mixer", "IN34 Switch", "IN34"},
        {"Right ADC Mixer", "IN56 Switch", "IN56"},
        {"Right ADC Mixer", "LINEA Switch", "LINEA Input"},
        {"Right ADC Mixer", "LINEB Switch", "LINEB Input"},
        {"Right ADC Mixer", "MIC1 Switch", "MIC1 Input"},
        {"Right ADC Mixer", "MIC2 Switch", "MIC2 Input"},

        /* Line A input mixer */
        {"LINEA Mixer", "IN1 Switch", "IN1"},
        {"LINEA Mixer", "IN3 Switch", "IN3"},
        {"LINEA Mixer", "IN5 Switch", "IN5"},
        {"LINEA Mixer", "IN34 Switch", "IN34"},

        /* Line B input mixer */
        {"LINEB Mixer", "IN2 Switch", "IN2"},
        {"LINEB Mixer", "IN4 Switch", "IN4"},
        {"LINEB Mixer", "IN6 Switch", "IN6"},
        {"LINEB Mixer", "IN56 Switch", "IN56"},

        {"LINEA Input", NULL, "LINEA Mixer"},
        {"LINEB Input", NULL, "LINEB Mixer"},

        /* Inputs */
        {"ADCL", NULL, "Left ADC Mixer"},
        {"ADCR", NULL, "Right ADC Mixer"},
        {"ADCL", NULL, "SHDN"},
        {"ADCR", NULL, "SHDN"},

        {"DMIC Mux", "ADC", "ADCL"},
        {"DMIC Mux", "ADC", "ADCR"},
        {"DMIC Mux", "DMIC", "DMICL"},
        {"DMIC Mux", "DMIC", "DMICR"},

        {"LBENL Mux", "Normal", "DMIC Mux"},
        {"LBENL Mux", "Loopback", "LTENL Mux"},
        {"LBENR Mux", "Normal", "DMIC Mux"},
        {"LBENR Mux", "Loopback", "LTENR Mux"},

        {"AIFOUTL", NULL, "LBENL Mux"},
        {"AIFOUTR", NULL, "LBENR Mux"},
        {"AIFOUTL", NULL, "SHDN"},
        {"AIFOUTR", NULL, "SHDN"},
        {"AIFOUTL", NULL, "SDOEN"},
        {"AIFOUTR", NULL, "SDOEN"},

        {"LTENL Mux", "Normal", "AIFINL"},
        {"LTENL Mux", "Loopthrough", "LBENL Mux"},
        {"LTENR Mux", "Normal", "AIFINR"},
        {"LTENR Mux", "Loopthrough", "LBENR Mux"},

        {"DACL", NULL, "LTENL Mux"},
        {"DACR", NULL, "LTENR Mux"},

        {"STENL Mux", "Sidetone Left", "ADCL"},
        {"STENL Mux", "Sidetone Left", "DMICL"},
        {"STENR Mux", "Sidetone Right", "ADCR"},
        {"STENR Mux", "Sidetone Right", "DMICR"},
        {"DACL", NULL, "STENL Mux"},
        {"DACR", NULL, "STENR Mux"},

        {"AIFINL", NULL, "SHDN"},
        {"AIFINR", NULL, "SHDN"},
        {"AIFINL", NULL, "SDIEN"},
        {"AIFINR", NULL, "SDIEN"},
        {"DACL", NULL, "SHDN"},
        {"DACR", NULL, "SHDN"},

        /* Left headphone output mixer */
        {"Left Headphone Mixer", "Left DAC Switch", "DACL"},
        {"Left Headphone Mixer", "Right DAC Switch", "DACR"},
        {"Left Headphone Mixer", "MIC1 Switch", "MIC1 Input"},
        {"Left Headphone Mixer", "MIC2 Switch", "MIC2 Input"},
        {"Left Headphone Mixer", "LINEA Switch", "LINEA Input"},
        {"Left Headphone Mixer", "LINEB Switch", "LINEB Input"},

        /* Right headphone output mixer */
        {"Right Headphone Mixer", "Left DAC Switch", "DACL"},
        {"Right Headphone Mixer", "Right DAC Switch", "DACR"},
        {"Right Headphone Mixer", "MIC1 Switch", "MIC1 Input"},
        {"Right Headphone Mixer", "MIC2 Switch", "MIC2 Input"},
        {"Right Headphone Mixer", "LINEA Switch", "LINEA Input"},
        {"Right Headphone Mixer", "LINEB Switch", "LINEB Input"},

        /* Left speaker output mixer */
        {"Left Speaker Mixer", "Left DAC Switch", "DACL"},
        {"Left Speaker Mixer", "Right DAC Switch", "DACR"},
        {"Left Speaker Mixer", "MIC1 Switch", "MIC1 Input"},
        {"Left Speaker Mixer", "MIC2 Switch", "MIC2 Input"},
        {"Left Speaker Mixer", "LINEA Switch", "LINEA Input"},
        {"Left Speaker Mixer", "LINEB Switch", "LINEB Input"},

        /* Right speaker output mixer */
        {"Right Speaker Mixer", "Left DAC Switch", "DACL"},
        {"Right Speaker Mixer", "Right DAC Switch", "DACR"},
        {"Right Speaker Mixer", "MIC1 Switch", "MIC1 Input"},
        {"Right Speaker Mixer", "MIC2 Switch", "MIC2 Input"},
        {"Right Speaker Mixer", "LINEA Switch", "LINEA Input"},
        {"Right Speaker Mixer", "LINEB Switch", "LINEB Input"},

        /* Left Receiver output mixer */
        {"Left Receiver Mixer", "Left DAC Switch", "DACL"},
        {"Left Receiver Mixer", "Right DAC Switch", "DACR"},
        {"Left Receiver Mixer", "MIC1 Switch", "MIC1 Input"},
        {"Left Receiver Mixer", "MIC2 Switch", "MIC2 Input"},
        {"Left Receiver Mixer", "LINEA Switch", "LINEA Input"},
        {"Left Receiver Mixer", "LINEB Switch", "LINEB Input"},

        /* Right Receiver output mixer */
        {"Right Receiver Mixer", "Left DAC Switch", "DACL"},
        {"Right Receiver Mixer", "Right DAC Switch", "DACR"},
        {"Right Receiver Mixer", "MIC1 Switch", "MIC1 Input"},
        {"Right Receiver Mixer", "MIC2 Switch", "MIC2 Input"},
        {"Right Receiver Mixer", "LINEA Switch", "LINEA Input"},
        {"Right Receiver Mixer", "LINEB Switch", "LINEB Input"},

        {"MIXHPLSEL Mux", "HP Mixer", "Left Headphone Mixer"},

        /*
         * Disable this for lowest power if bypassing
         * the DAC with an analog signal
         */
        {"HP Left Out", NULL, "DACL"},
        {"HP Left Out", NULL, "MIXHPLSEL Mux"},

        {"MIXHPRSEL Mux", "HP Mixer", "Right Headphone Mixer"},

        /*
         * Disable this for lowest power if bypassing
         * the DAC with an analog signal
         */
        {"HP Right Out", NULL, "DACR"},
        {"HP Right Out", NULL, "MIXHPRSEL Mux"},

        {"SPK Left Out", NULL, "Left Speaker Mixer"},
        {"SPK Right Out", NULL, "Right Speaker Mixer"},
        {"RCV Left Out", NULL, "Left Receiver Mixer"},

        {"LINMOD Mux", "Left and Right", "Right Receiver Mixer"},
        {"LINMOD Mux", "Left Only",  "Left Receiver Mixer"},
        {"RCV Right Out", NULL, "LINMOD Mux"},

        {"HPL", NULL, "HP Left Out"},
        {"HPR", NULL, "HP Right Out"},
        {"SPKL", NULL, "SPK Left Out"},
        {"SPKR", NULL, "SPK Right Out"},
        {"RCVL", NULL, "RCV Left Out"},
        {"RCVR", NULL, "RCV Right Out"},
};

static const struct snd_soc_dapm_route max98091_dapm_routes[] = {
        /* DMIC inputs */
        {"DMIC3", NULL, "DMIC3_ENA"},
        {"DMIC4", NULL, "DMIC4_ENA"},
        {"DMIC3", NULL, "AHPF"},
        {"DMIC4", NULL, "AHPF"},
};

static int max98090_add_widgets(struct snd_soc_codec *codec)
{
        struct max98090_priv *max98090 = snd_soc_codec_get_drvdata(codec);
        struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec);

        snd_soc_add_codec_controls(codec, max98090_snd_controls,
                ARRAY_SIZE(max98090_snd_controls));

        if (max98090->devtype == MAX98091) {
                snd_soc_add_codec_controls(codec, max98091_snd_controls,
                        ARRAY_SIZE(max98091_snd_controls));
        }

        snd_soc_dapm_new_controls(dapm, max98090_dapm_widgets,
                ARRAY_SIZE(max98090_dapm_widgets));

        snd_soc_dapm_add_routes(dapm, max98090_dapm_routes,
                ARRAY_SIZE(max98090_dapm_routes));

        if (max98090->devtype == MAX98091) {
                snd_soc_dapm_new_controls(dapm, max98091_dapm_widgets,
                        ARRAY_SIZE(max98091_dapm_widgets));

                snd_soc_dapm_add_routes(dapm, max98091_dapm_routes,
                        ARRAY_SIZE(max98091_dapm_routes));
        }

        return 0;
}

static const int pclk_rates[] = {
        12000000, 12000000, 13000000, 13000000,
        16000000, 16000000, 19200000, 19200000
};

static const int lrclk_rates[] = {
        8000, 16000, 8000, 16000,
        8000, 16000, 8000, 16000
};

static const int user_pclk_rates[] = {
        13000000, 13000000, 19200000, 19200000,
};

static const int user_lrclk_rates[] = {
        44100, 48000, 44100, 48000,
};

static const unsigned long long ni_value[] = {
        3528, 768, 441, 8
};

static const unsigned long long mi_value[] = {
        8125, 1625, 1500, 25
};

static void max98090_configure_bclk(struct snd_soc_codec *codec)
{
        struct max98090_priv *max98090 = snd_soc_codec_get_drvdata(codec);
        unsigned long long ni;
        int i;

        if (!max98090->sysclk) {
                dev_err(codec->dev, "No SYSCLK configured\n");
                return;
        }

        if (!max98090->bclk || !max98090->lrclk) {
                dev_err(codec->dev, "No audio clocks configured\n");
                return;
        }

        /* Skip configuration when operating as slave */
        if (!(snd_soc_read(codec, M98090_REG_MASTER_MODE) &
                M98090_MAS_MASK)) {
                return;
        }

        /* Check for supported PCLK to LRCLK ratios */
        for (i = 0; i < ARRAY_SIZE(pclk_rates); i++) {
                if ((pclk_rates[i] == max98090->sysclk) &&
                        (lrclk_rates[i] == max98090->lrclk)) {
                        dev_dbg(codec->dev,
                                "Found supported PCLK to LRCLK rates 0x%x\n",
                                i + 0x8);

                        snd_soc_update_bits(codec, M98090_REG_CLOCK_MODE,
                                M98090_FREQ_MASK,
                                (i + 0x8) << M98090_FREQ_SHIFT);
                        snd_soc_update_bits(codec, M98090_REG_CLOCK_MODE,
                                M98090_USE_M1_MASK, 0);
                        return;
                }
        }

        /* Check for user calculated MI and NI ratios */
        for (i = 0; i < ARRAY_SIZE(user_pclk_rates); i++) {
                if ((user_pclk_rates[i] == max98090->sysclk) &&
                        (user_lrclk_rates[i] == max98090->lrclk)) {
                        dev_dbg(codec->dev,
                                "Found user supported PCLK to LRCLK rates\n");
                        dev_dbg(codec->dev, "i %d ni %lld mi %lld\n",
                                i, ni_value[i], mi_value[i]);

                        snd_soc_update_bits(codec, M98090_REG_CLOCK_MODE,
                                M98090_FREQ_MASK, 0);
                        snd_soc_update_bits(codec, M98090_REG_CLOCK_MODE,
                                M98090_USE_M1_MASK,
                                        1 << M98090_USE_M1_SHIFT);

                        snd_soc_write(codec, M98090_REG_CLOCK_RATIO_NI_MSB,
                                (ni_value[i] >> 8) & 0x7F);
                        snd_soc_write(codec, M98090_REG_CLOCK_RATIO_NI_LSB,
                                ni_value[i] & 0xFF);
                        snd_soc_write(codec, M98090_REG_CLOCK_RATIO_MI_MSB,
                                (mi_value[i] >> 8) & 0x7F);
                        snd_soc_write(codec, M98090_REG_CLOCK_RATIO_MI_LSB,
                                mi_value[i] & 0xFF);

                        return;
                }
        }

        /*
         * Calculate based on MI = 65536 (not as good as either method above)
         */
        snd_soc_update_bits(codec, M98090_REG_CLOCK_MODE,
                M98090_FREQ_MASK, 0);
        snd_soc_update_bits(codec, M98090_REG_CLOCK_MODE,
                M98090_USE_M1_MASK, 0);

        /*
         * Configure NI when operating as master
         * Note: There is a small, but significant audio quality improvement
         * by calculating ni and mi.
         */
        ni = 65536ULL * (max98090->lrclk < 50000 ? 96ULL : 48ULL)
                        * (unsigned long long int)max98090->lrclk;
        do_div(ni, (unsigned long long int)max98090->sysclk);
        dev_info(codec->dev, "No better method found\n");
        dev_info(codec->dev, "Calculating ni %lld with mi 65536\n", ni);
        snd_soc_write(codec, M98090_REG_CLOCK_RATIO_NI_MSB,
                (ni >> 8) & 0x7F);
        snd_soc_write(codec, M98090_REG_CLOCK_RATIO_NI_LSB, ni & 0xFF);
}

static int max98090_dai_set_fmt(struct snd_soc_dai *codec_dai,
                                 unsigned int fmt)
{
        struct snd_soc_codec *codec = codec_dai->codec;
        struct max98090_priv *max98090 = snd_soc_codec_get_drvdata(codec);
        struct max98090_cdata *cdata;
        u8 regval;

        max98090->dai_fmt = fmt;
        cdata = &max98090->dai[0];

        if (fmt != cdata->fmt) {
                cdata->fmt = fmt;

                regval = 0;
                switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
                case SND_SOC_DAIFMT_CBS_CFS:
                        /* Set to slave mode PLL - MAS mode off */
                        snd_soc_write(codec,
                                M98090_REG_CLOCK_RATIO_NI_MSB, 0x00);
                        snd_soc_write(codec,
                                M98090_REG_CLOCK_RATIO_NI_LSB, 0x00);
                        snd_soc_update_bits(codec, M98090_REG_CLOCK_MODE,
                                M98090_USE_M1_MASK, 0);
                        max98090->master = false;
                        break;
                case SND_SOC_DAIFMT_CBM_CFM:
                        /* Set to master mode */
                        if (max98090->tdm_slots == 4) {
                                /* TDM */
                                regval |= M98090_MAS_MASK |
                                        M98090_BSEL_64;
                        } else if (max98090->tdm_slots == 3) {
                                /* TDM */
                                regval |= M98090_MAS_MASK |
                                        M98090_BSEL_48;
                        } else {
                                /* Few TDM slots, or No TDM */
                                regval |= M98090_MAS_MASK |
                                        M98090_BSEL_32;
                        }
                        max98090->master = true;
                        break;
                case SND_SOC_DAIFMT_CBS_CFM:
                case SND_SOC_DAIFMT_CBM_CFS:
                default:
                        dev_err(codec->dev, "DAI clock mode unsupported");
                        return -EINVAL;
                }
                snd_soc_write(codec, M98090_REG_MASTER_MODE, regval);

                regval = 0;
                switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
                case SND_SOC_DAIFMT_I2S:
                        regval |= M98090_DLY_MASK;
                        break;
                case SND_SOC_DAIFMT_LEFT_J:
                        break;
                case SND_SOC_DAIFMT_RIGHT_J:
                        regval |= M98090_RJ_MASK;
                        break;
                case SND_SOC_DAIFMT_DSP_A:
                        /* Not supported mode */
                default:
                        dev_err(codec->dev, "DAI format unsupported");
                        return -EINVAL;
                }

                switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
                case SND_SOC_DAIFMT_NB_NF:
                        break;
                case SND_SOC_DAIFMT_NB_IF:
                        regval |= M98090_WCI_MASK;
                        break;
                case SND_SOC_DAIFMT_IB_NF:
                        regval |= M98090_BCI_MASK;
                        break;
                case SND_SOC_DAIFMT_IB_IF:
                        regval |= M98090_BCI_MASK|M98090_WCI_MASK;
                        break;
                default:
                        dev_err(codec->dev, "DAI invert mode unsupported");
                        return -EINVAL;
                }

                /*
                 * This accommodates an inverted logic in the MAX98090 chip
                 * for Bit Clock Invert (BCI). The inverted logic is only
                 * seen for the case of TDM mode. The remaining cases have
                 * normal logic.
                 */
                if (max98090->tdm_slots > 1)
                        regval ^= M98090_BCI_MASK;

                snd_soc_write(codec,
                        M98090_REG_INTERFACE_FORMAT, regval);
        }

        return 0;
}

static int max98090_set_tdm_slot(struct snd_soc_dai *codec_dai,
        unsigned int tx_mask, unsigned int rx_mask, int slots, int slot_width)
{
        struct snd_soc_codec *codec = codec_dai->codec;
        struct max98090_priv *max98090 = snd_soc_codec_get_drvdata(codec);
        struct max98090_cdata *cdata;
        cdata = &max98090->dai[0];

        if (slots < 0 || slots > 4)
                return -EINVAL;

        max98090->tdm_slots = slots;
        max98090->tdm_width = slot_width;

        if (max98090->tdm_slots > 1) {
                /* SLOTL SLOTR SLOTDLY */
                snd_soc_write(codec, M98090_REG_TDM_FORMAT,
                        0 << M98090_TDM_SLOTL_SHIFT |
                        1 << M98090_TDM_SLOTR_SHIFT |
                        0 << M98090_TDM_SLOTDLY_SHIFT);

                /* FSW TDM */
                snd_soc_update_bits(codec, M98090_REG_TDM_CONTROL,
                        M98090_TDM_MASK,
                        M98090_TDM_MASK);
        }

        /*
         * Normally advisable to set TDM first, but this permits either order
         */
        cdata->fmt = 0;
        max98090_dai_set_fmt(codec_dai, max98090->dai_fmt);

        return 0;
}

static int max98090_set_bias_level(struct snd_soc_codec *codec,
                                   enum snd_soc_bias_level level)
{
        struct max98090_priv *max98090 = snd_soc_codec_get_drvdata(codec);
        int ret;

        switch (level) {
        case SND_SOC_BIAS_ON:
                break;

        case SND_SOC_BIAS_PREPARE:
                /*
                 * SND_SOC_BIAS_PREPARE is called while preparing for a
                 * transition to ON or away from ON. If current bias_level
                 * is SND_SOC_BIAS_ON, then it is preparing for a transition
                 * away from ON. Disable the clock in that case, otherwise
                 * enable it.
                 */
                if (IS_ERR(max98090->mclk))
                        break;

                if (snd_soc_codec_get_bias_level(codec) == SND_SOC_BIAS_ON)
                        clk_disable_unprepare(max98090->mclk);
                else
                        clk_prepare_enable(max98090->mclk);
                break;

        case SND_SOC_BIAS_STANDBY:
                if (snd_soc_codec_get_bias_level(codec) == SND_SOC_BIAS_OFF) {
                        ret = regcache_sync(max98090->regmap);
                        if (ret != 0) {
                                dev_err(codec->dev,
                                        "Failed to sync cache: %d\n", ret);
                                return ret;
                        }
                }
                break;

        case SND_SOC_BIAS_OFF:
                /* Set internal pull-up to lowest power mode */
                snd_soc_update_bits(codec, M98090_REG_JACK_DETECT,
                        M98090_JDWK_MASK, M98090_JDWK_MASK);
                regcache_mark_dirty(max98090->regmap);
                break;
        }
        return 0;
}

static const int dmic_divisors[] = { 2, 3, 4, 5, 6, 8 };

static const int comp_lrclk_rates[] = {
        8000, 16000, 32000, 44100, 48000, 96000
};

struct dmic_table {
        int pclk;
        struct {
                int freq;
                int comp[6]; /* One each for 8, 16, 32, 44.1, 48, and 96 kHz */
        } settings[6]; /* One for each dmic divisor. */
};

static const struct dmic_table dmic_table[] = { /* One for each pclk freq. */
        {
                .pclk = 11289600,
                .settings = {
                        { .freq = 2, .comp = { 7, 8, 3, 3, 3, 3 } },
                        { .freq = 1, .comp = { 7, 8, 2, 2, 2, 2 } },
                        { .freq = 0, .comp = { 7, 8, 3, 3, 3, 3 } },
                        { .freq = 0, .comp = { 7, 8, 6, 6, 6, 6 } },
                        { .freq = 0, .comp = { 7, 8, 3, 3, 3, 3 } },
                        { .freq = 0, .comp = { 7, 8, 3, 3, 3, 3 } },
                },
        },
        {
                .pclk = 12000000,
                .settings = {
                        { .freq = 2, .comp = { 7, 8, 3, 3, 3, 3 } },
                        { .freq = 1, .comp = { 7, 8, 2, 2, 2, 2 } },
                        { .freq = 0, .comp = { 7, 8, 3, 3, 3, 3 } },
                        { .freq = 0, .comp = { 7, 8, 5, 5, 6, 6 } },
                        { .freq = 0, .comp = { 7, 8, 3, 3, 3, 3 } },
                        { .freq = 0, .comp = { 7, 8, 3, 3, 3, 3 } },
                }
        },
        {
                .pclk = 12288000,
                .settings = {
                        { .freq = 2, .comp = { 7, 8, 3, 3, 3, 3 } },
                        { .freq = 1, .comp = { 7, 8, 2, 2, 2, 2 } },
                        { .freq = 0, .comp = { 7, 8, 3, 3, 3, 3 } },
                        { .freq = 0, .comp = { 7, 8, 6, 6, 6, 6 } },
                        { .freq = 0, .comp = { 7, 8, 3, 3, 3, 3 } },
                        { .freq = 0, .comp = { 7, 8, 3, 3, 3, 3 } },
                }
        },
        {
                .pclk = 13000000,
                .settings = {
                        { .freq = 2, .comp = { 7, 8, 1, 1, 1, 1 } },
                        { .freq = 1, .comp = { 7, 8, 0, 0, 0, 0 } },
                        { .freq = 0, .comp = { 7, 8, 1, 1, 1, 1 } },
                        { .freq = 0, .comp = { 7, 8, 4, 4, 5, 5 } },
                        { .freq = 0, .comp = { 7, 8, 1, 1, 1, 1 } },
                        { .freq = 0, .comp = { 7, 8, 1, 1, 1, 1 } },
                }
        },
        {
                .pclk = 19200000,
                .settings = {
                        { .freq = 2, .comp = { 0, 0, 0, 0, 0, 0 } },
                        { .freq = 1, .comp = { 7, 8, 1, 1, 1, 1 } },
                        { .freq = 0, .comp = { 7, 8, 5, 5, 6, 6 } },
                        { .freq = 0, .comp = { 7, 8, 2, 2, 3, 3 } },
                        { .freq = 0, .comp = { 7, 8, 1, 1, 2, 2 } },
                        { .freq = 0, .comp = { 7, 8, 5, 5, 6, 6 } },
                }
        },
};

static int max98090_find_divisor(int target_freq, int pclk)
{
        int current_diff = INT_MAX;
        int test_diff = INT_MAX;
        int divisor_index = 0;
        int i;

        for (i = 0; i < ARRAY_SIZE(dmic_divisors); i++) {
                test_diff = abs(target_freq - (pclk / dmic_divisors[i]));
                if (test_diff < current_diff) {
                        current_diff = test_diff;
                        divisor_index = i;
                }
        }

        return divisor_index;
}

static int max98090_find_closest_pclk(int pclk)
{
        int m1;
        int m2;
        int i;

        for (i = 0; i < ARRAY_SIZE(dmic_table); i++) {
                if (pclk == dmic_table[i].pclk)
                        return i;
                if (pclk < dmic_table[i].pclk) {
                        if (i == 0)
                                return i;
                        m1 = pclk - dmic_table[i-1].pclk;
                        m2 = dmic_table[i].pclk - pclk;
                        if (m1 < m2)
                                return i - 1;
                        else
                                return i;
                }
        }

        return -EINVAL;
}

static int max98090_configure_dmic(struct max98090_priv *max98090,
                                   int target_dmic_clk, int pclk, int fs)
{
        int micclk_index;
        int pclk_index;
        int dmic_freq;
        int dmic_comp;
        int i;

        pclk_index = max98090_find_closest_pclk(pclk);
        if (pclk_index < 0)
                return pclk_index;

        micclk_index = max98090_find_divisor(target_dmic_clk, pclk);

        for (i = 0; i < ARRAY_SIZE(comp_lrclk_rates) - 1; i++) {
                if (fs <= (comp_lrclk_rates[i] + comp_lrclk_rates[i+1]) / 2)
                        break;
        }

        dmic_freq = dmic_table[pclk_index].settings[micclk_index].freq;
        dmic_comp = dmic_table[pclk_index].settings[micclk_index].comp[i];

        regmap_update_bits(max98090->regmap, M98090_REG_DIGITAL_MIC_ENABLE,
                           M98090_MICCLK_MASK,
                           micclk_index << M98090_MICCLK_SHIFT);

        regmap_update_bits(max98090->regmap, M98090_REG_DIGITAL_MIC_CONFIG,
                           M98090_DMIC_COMP_MASK | M98090_DMIC_FREQ_MASK,
                           dmic_comp << M98090_DMIC_COMP_SHIFT |
                           dmic_freq << M98090_DMIC_FREQ_SHIFT);

        return 0;
}

static int max98090_dai_hw_params(struct snd_pcm_substream *substream,
                                   struct snd_pcm_hw_params *params,
                                   struct snd_soc_dai *dai)
{
        struct snd_soc_codec *codec = dai->codec;
        struct max98090_priv *max98090 = snd_soc_codec_get_drvdata(codec);
        struct max98090_cdata *cdata;

        cdata = &max98090->dai[0];
        max98090->bclk = snd_soc_params_to_bclk(params);
        if (params_channels(params) == 1)
                max98090->bclk *= 2;

        max98090->lrclk = params_rate(params);

        switch (params_width(params)) {
        case 16:
                snd_soc_update_bits(codec, M98090_REG_INTERFACE_FORMAT,
                        M98090_WS_MASK, 0);
                break;
        default:

                return -EINVAL;
        }

        if (max98090->master)
                max98090_configure_bclk(codec);

        cdata->rate = max98090->lrclk;

        /* Update filter mode */
        if (max98090->lrclk < 24000)
                snd_soc_update_bits(codec, M98090_REG_FILTER_CONFIG,
                        M98090_MODE_MASK, 0);
        else
                snd_soc_update_bits(codec, M98090_REG_FILTER_CONFIG,
                        M98090_MODE_MASK, M98090_MODE_MASK);

        /* Update sample rate mode */
        if (max98090->lrclk < 50000)
                snd_soc_update_bits(codec, M98090_REG_FILTER_CONFIG,
                        M98090_DHF_MASK, 0);
        else
                snd_soc_update_bits(codec, M98090_REG_FILTER_CONFIG,
                        M98090_DHF_MASK, M98090_DHF_MASK);

        max98090_configure_dmic(max98090, max98090->dmic_freq, max98090->pclk,
                                max98090->lrclk);

        return 0;
}

/*
 * PLL / Sysclk
 */
static int max98090_dai_set_sysclk(struct snd_soc_dai *dai,
                                   int clk_id, unsigned int freq, int dir)
{
        struct snd_soc_codec *codec = dai->codec;
        struct max98090_priv *max98090 = snd_soc_codec_get_drvdata(codec);

        /* Requested clock frequency is already setup */
        if (freq == max98090->sysclk)
                return 0;

        if (!IS_ERR(max98090->mclk)) {
                freq = clk_round_rate(max98090->mclk, freq);
                clk_set_rate(max98090->mclk, freq);
        }

        /* Setup clocks for slave mode, and using the PLL
         * PSCLK = 0x01 (when master clk is 10MHz to 20MHz)
         *               0x02 (when master clk is 20MHz to 40MHz)..
         *               0x03 (when master clk is 40MHz to 60MHz)..
         */
        if ((freq >= 10000000) && (freq <= 20000000)) {
                snd_soc_write(codec, M98090_REG_SYSTEM_CLOCK,
                        M98090_PSCLK_DIV1);
                max98090->pclk = freq;
        } else if ((freq > 20000000) && (freq <= 40000000)) {
                snd_soc_write(codec, M98090_REG_SYSTEM_CLOCK,
                        M98090_PSCLK_DIV2);
                max98090->pclk = freq >> 1;
        } else if ((freq > 40000000) && (freq <= 60000000)) {
                snd_soc_write(codec, M98090_REG_SYSTEM_CLOCK,
                        M98090_PSCLK_DIV4);
                max98090->pclk = freq >> 2;
        } else {
                dev_err(codec->dev, "Invalid master clock frequency\n");
                return -EINVAL;
        }

        max98090->sysclk = freq;

        return 0;
}

static int max98090_dai_digital_mute(struct snd_soc_dai *codec_dai, int mute)
{
        struct snd_soc_codec *codec = codec_dai->codec;
        int regval;

        regval = mute ? M98090_DVM_MASK : 0;
        snd_soc_update_bits(codec, M98090_REG_DAI_PLAYBACK_LEVEL,
                M98090_DVM_MASK, regval);

        return 0;
}

static int max98090_dai_trigger(struct snd_pcm_substream *substream, int cmd,
                                struct snd_soc_dai *dai)
{
        struct snd_soc_codec *codec = dai->codec;
        struct max98090_priv *max98090 = snd_soc_codec_get_drvdata(codec);

        switch (cmd) {
        case SNDRV_PCM_TRIGGER_START:
        case SNDRV_PCM_TRIGGER_RESUME:
        case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
                if (!max98090->master && dai->active == 1)
                        queue_delayed_work(system_power_efficient_wq,
                                           &max98090->pll_det_enable_work,
                                           msecs_to_jiffies(10));
                break;
        case SNDRV_PCM_TRIGGER_STOP:
        case SNDRV_PCM_TRIGGER_SUSPEND:
        case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
                if (!max98090->master && dai->active == 1)
                        schedule_work(&max98090->pll_det_disable_work);
                break;
        default:
                break;
        }

        return 0;
}

static void max98090_pll_det_enable_work(struct work_struct *work)
{
        struct max98090_priv *max98090 =
                container_of(work, struct max98090_priv,
                             pll_det_enable_work.work);
        struct snd_soc_codec *codec = max98090->codec;
        unsigned int status, mask;

        /*
         * Clear status register in order to clear possibly already occurred
         * PLL unlock. If PLL hasn't still locked, the status will be set
         * again and PLL unlock interrupt will occur.
         * Note this will clear all status bits
         */
        regmap_read(max98090->regmap, M98090_REG_DEVICE_STATUS, &status);

        /*
         * Queue jack work in case jack state has just changed but handler
         * hasn't run yet
         */
        regmap_read(max98090->regmap, M98090_REG_INTERRUPT_S, &mask);
        status &= mask;
        if (status & M98090_JDET_MASK)
                queue_delayed_work(system_power_efficient_wq,
                                   &max98090->jack_work,
                                   msecs_to_jiffies(100));

        /* Enable PLL unlock interrupt */
        snd_soc_update_bits(codec, M98090_REG_INTERRUPT_S,
                            M98090_IULK_MASK,
                            1 << M98090_IULK_SHIFT);
}

static void max98090_pll_det_disable_work(struct work_struct *work)
{
        struct max98090_priv *max98090 =
                container_of(work, struct max98090_priv, pll_det_disable_work);
        struct snd_soc_codec *codec = max98090->codec;

        cancel_delayed_work_sync(&max98090->pll_det_enable_work);

        /* Disable PLL unlock interrupt */
        snd_soc_update_bits(codec, M98090_REG_INTERRUPT_S,
                            M98090_IULK_MASK, 0);
}

static void max98090_pll_work(struct work_struct *work)
{
        struct max98090_priv *max98090 =
                container_of(work, struct max98090_priv, pll_work);
        struct snd_soc_codec *codec = max98090->codec;

        if (!snd_soc_codec_is_active(codec))
                return;

        dev_info(codec->dev, "PLL unlocked\n");

        /* Toggle shutdown OFF then ON */
        snd_soc_update_bits(codec, M98090_REG_DEVICE_SHUTDOWN,
                            M98090_SHDNN_MASK, 0);
        msleep(10);
        snd_soc_update_bits(codec, M98090_REG_DEVICE_SHUTDOWN,
                            M98090_SHDNN_MASK, M98090_SHDNN_MASK);

        /* Give PLL time to lock */
        msleep(10);
}

static void max98090_jack_work(struct work_struct *work)
{
        struct max98090_priv *max98090 = container_of(work,
                struct max98090_priv,
                jack_work.work);
        struct snd_soc_codec *codec = max98090->codec;
        int status = 0;
        int reg;

        /* Read a second time */
        if (max98090->jack_state == M98090_JACK_STATE_NO_HEADSET) {

                /* Strong pull up allows mic detection */
                snd_soc_update_bits(codec, M98090_REG_JACK_DETECT,
                        M98090_JDWK_MASK, 0);

                msleep(50);

                reg = snd_soc_read(codec, M98090_REG_JACK_STATUS);

                /* Weak pull up allows only insertion detection */
                snd_soc_update_bits(codec, M98090_REG_JACK_DETECT,
                        M98090_JDWK_MASK, M98090_JDWK_MASK);
        } else {
                reg = snd_soc_read(codec, M98090_REG_JACK_STATUS);
        }

        reg = snd_soc_read(codec, M98090_REG_JACK_STATUS);

        switch (reg & (M98090_LSNS_MASK | M98090_JKSNS_MASK)) {
                case M98090_LSNS_MASK | M98090_JKSNS_MASK:
                        dev_dbg(codec->dev, "No Headset Detected\n");

                        max98090->jack_state = M98090_JACK_STATE_NO_HEADSET;

                        status |= 0;

                        break;

                case 0:
                        if (max98090->jack_state ==
                                M98090_JACK_STATE_HEADSET) {

                                dev_dbg(codec->dev,
                                        "Headset Button Down Detected\n");

                                /*
                                 * max98090_headset_button_event(codec)
                                 * could be defined, then called here.
                                 */

                                status |= SND_JACK_HEADSET;
                                status |= SND_JACK_BTN_0;

                                break;
                        }

                        /* Line is reported as Headphone */
                        /* Nokia Headset is reported as Headphone */
                        /* Mono Headphone is reported as Headphone */
                        dev_dbg(codec->dev, "Headphone Detected\n");

                        max98090->jack_state = M98090_JACK_STATE_HEADPHONE;

                        status |= SND_JACK_HEADPHONE;

                        break;

                case M98090_JKSNS_MASK:
                        dev_dbg(codec->dev, "Headset Detected\n");

                        max98090->jack_state = M98090_JACK_STATE_HEADSET;

                        status |= SND_JACK_HEADSET;

                        break;

                default:
                        dev_dbg(codec->dev, "Unrecognized Jack Status\n");
                        break;
        }

        snd_soc_jack_report(max98090->jack, status,
                            SND_JACK_HEADSET | SND_JACK_BTN_0);
}

static irqreturn_t max98090_interrupt(int irq, void *data)
{
        struct max98090_priv *max98090 = data;
        struct snd_soc_codec *codec = max98090->codec;
        int ret;
        unsigned int mask;
        unsigned int active;

        /* Treat interrupt before codec is initialized as spurious */
        if (codec == NULL)
                return IRQ_NONE;

        dev_dbg(codec->dev, "***** max98090_interrupt *****\n");

        ret = regmap_read(max98090->regmap, M98090_REG_INTERRUPT_S, &mask);

        if (ret != 0) {
                dev_err(codec->dev,
                        "failed to read M98090_REG_INTERRUPT_S: %d\n",
                        ret);
                return IRQ_NONE;
        }

        ret = regmap_read(max98090->regmap, M98090_REG_DEVICE_STATUS, &active);

        if (ret != 0) {
                dev_err(codec->dev,
                        "failed to read M98090_REG_DEVICE_STATUS: %d\n",
                        ret);
                return IRQ_NONE;
        }

        dev_dbg(codec->dev, "active=0x%02x mask=0x%02x -> active=0x%02x\n",
                active, mask, active & mask);

        active &= mask;

        if (!active)
                return IRQ_NONE;

        if (active & M98090_CLD_MASK)
                dev_err(codec->dev, "M98090_CLD_MASK\n");

        if (active & M98090_SLD_MASK)
                dev_dbg(codec->dev, "M98090_SLD_MASK\n");

        if (active & M98090_ULK_MASK) {
                dev_dbg(codec->dev, "M98090_ULK_MASK\n");
                schedule_work(&max98090->pll_work);
        }

        if (active & M98090_JDET_MASK) {
                dev_dbg(codec->dev, "M98090_JDET_MASK\n");

                pm_wakeup_event(codec->dev, 100);

                queue_delayed_work(system_power_efficient_wq,
                                   &max98090->jack_work,
                                   msecs_to_jiffies(100));
        }

        if (active & M98090_DRCACT_MASK)
                dev_dbg(codec->dev, "M98090_DRCACT_MASK\n");

        if (active & M98090_DRCCLP_MASK)
                dev_err(codec->dev, "M98090_DRCCLP_MASK\n");

        return IRQ_HANDLED;
}

/**
 * max98090_mic_detect - Enable microphone detection via the MAX98090 IRQ
 *
 * @codec:  MAX98090 codec
 * @jack:   jack to report detection events on
 *
 * Enable microphone detection via IRQ on the MAX98090.  If GPIOs are
 * being used to bring out signals to the processor then only platform
 * data configuration is needed for MAX98090 and processor GPIOs should
 * be configured using snd_soc_jack_add_gpios() instead.
 *
 * If no jack is supplied detection will be disabled.
 */
int max98090_mic_detect(struct snd_soc_codec *codec,
        struct snd_soc_jack *jack)
{
        struct max98090_priv *max98090 = snd_soc_codec_get_drvdata(codec);

        dev_dbg(codec->dev, "max98090_mic_detect\n");

        max98090->jack = jack;
        if (jack) {
                snd_soc_update_bits(codec, M98090_REG_INTERRUPT_S,
                        M98090_IJDET_MASK,
                        1 << M98090_IJDET_SHIFT);
        } else {
                snd_soc_update_bits(codec, M98090_REG_INTERRUPT_S,
                        M98090_IJDET_MASK,
                        0);
        }

        /* Send an initial empty report */
        snd_soc_jack_report(max98090->jack, 0,
                            SND_JACK_HEADSET | SND_JACK_BTN_0);

        queue_delayed_work(system_power_efficient_wq,
                           &max98090->jack_work,
                           msecs_to_jiffies(100));

        return 0;
}
EXPORT_SYMBOL_GPL(max98090_mic_detect);

#define MAX98090_RATES SNDRV_PCM_RATE_8000_96000
#define MAX98090_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE)

static struct snd_soc_dai_ops max98090_dai_ops = {
        .set_sysclk = max98090_dai_set_sysclk,
        .set_fmt = max98090_dai_set_fmt,
        .set_tdm_slot = max98090_set_tdm_slot,
        .hw_params = max98090_dai_hw_params,
        .digital_mute = max98090_dai_digital_mute,
        .trigger = max98090_dai_trigger,
};

static struct snd_soc_dai_driver max98090_dai[] = {
{
        .name = "HiFi",
        .playback = {
                .stream_name = "HiFi Playback",
                .channels_min = 2,
                .channels_max = 2,
                .rates = MAX98090_RATES,
                .formats = MAX98090_FORMATS,
        },
        .capture = {
                .stream_name = "HiFi Capture",
                .channels_min = 1,
                .channels_max = 2,
                .rates = MAX98090_RATES,
                .formats = MAX98090_FORMATS,
        },
         .ops = &max98090_dai_ops,
}
};

static int max98090_probe(struct snd_soc_codec *codec)
{
        struct max98090_priv *max98090 = snd_soc_codec_get_drvdata(codec);
        struct max98090_cdata *cdata;
        enum max98090_type devtype;
        int ret = 0;
        int err;
        unsigned int micbias;

        dev_dbg(codec->dev, "max98090_probe\n");

        max98090->mclk = devm_clk_get(codec->dev, "mclk");
        if (PTR_ERR(max98090->mclk) == -EPROBE_DEFER)
                return -EPROBE_DEFER;

        max98090->codec = codec;

        /* Reset the codec, the DSP core, and disable all interrupts */
        max98090_reset(max98090);

        /* Initialize private data */

        max98090->sysclk = (unsigned)-1;
        max98090->pclk = (unsigned)-1;
        max98090->master = false;

        cdata = &max98090->dai[0];
        cdata->rate = (unsigned)-1;
        cdata->fmt  = (unsigned)-1;

        max98090->lin_state = 0;
        max98090->pa1en = 0;
        max98090->pa2en = 0;

        ret = snd_soc_read(codec, M98090_REG_REVISION_ID);
        if (ret < 0) {
                dev_err(codec->dev, "Failed to read device revision: %d\n",
                        ret);
                goto err_access;
        }

        if ((ret >= M98090_REVA) && (ret <= M98090_REVA + 0x0f)) {
                devtype = MAX98090;
                dev_info(codec->dev, "MAX98090 REVID=0x%02x\n", ret);
        } else if ((ret >= M98091_REVA) && (ret <= M98091_REVA + 0x0f)) {
                devtype = MAX98091;
                dev_info(codec->dev, "MAX98091 REVID=0x%02x\n", ret);
        } else {
                devtype = MAX98090;
                dev_err(codec->dev, "Unrecognized revision 0x%02x\n", ret);
        }

        if (max98090->devtype != devtype) {
                dev_warn(codec->dev, "Mismatch in DT specified CODEC type.\n");
                max98090->devtype = devtype;
        }

        max98090->jack_state = M98090_JACK_STATE_NO_HEADSET;

        INIT_DELAYED_WORK(&max98090->jack_work, max98090_jack_work);
        INIT_DELAYED_WORK(&max98090->pll_det_enable_work,
                          max98090_pll_det_enable_work);
        INIT_WORK(&max98090->pll_det_disable_work,
                  max98090_pll_det_disable_work);
        INIT_WORK(&max98090->pll_work, max98090_pll_work);

        /* Enable jack detection */
        snd_soc_write(codec, M98090_REG_JACK_DETECT,
                M98090_JDETEN_MASK | M98090_JDEB_25MS);

        /*
         * Clear any old interrupts.
         * An old interrupt ocurring prior to installing the ISR
         * can keep a new interrupt from generating a trigger.
         */
        snd_soc_read(codec, M98090_REG_DEVICE_STATUS);

        /* High Performance is default */
        snd_soc_update_bits(codec, M98090_REG_DAC_CONTROL,
                M98090_DACHP_MASK,
                1 << M98090_DACHP_SHIFT);
        snd_soc_update_bits(codec, M98090_REG_DAC_CONTROL,
                M98090_PERFMODE_MASK,
                0 << M98090_PERFMODE_SHIFT);
        snd_soc_update_bits(codec, M98090_REG_ADC_CONTROL,
                M98090_ADCHP_MASK,
                1 << M98090_ADCHP_SHIFT);

        /* Turn on VCM bandgap reference */
        snd_soc_write(codec, M98090_REG_BIAS_CONTROL,
                M98090_VCM_MODE_MASK);

        err = device_property_read_u32(codec->dev, "maxim,micbias", &micbias);
        if (err) {
                micbias = M98090_MBVSEL_2V8;
                dev_info(codec->dev, "use default 2.8v micbias\n");
        } else if (micbias < M98090_MBVSEL_2V2 || micbias > M98090_MBVSEL_2V8) {
                dev_err(codec->dev, "micbias out of range 0x%x\n", micbias);
                micbias = M98090_MBVSEL_2V8;
        }

        snd_soc_update_bits(codec, M98090_REG_MIC_BIAS_VOLTAGE,
                M98090_MBVSEL_MASK, micbias);

        max98090_add_widgets(codec);

err_access:
        return ret;
}

static int max98090_remove(struct snd_soc_codec *codec)
{
        struct max98090_priv *max98090 = snd_soc_codec_get_drvdata(codec);

        cancel_delayed_work_sync(&max98090->jack_work);
        cancel_delayed_work_sync(&max98090->pll_det_enable_work);
        cancel_work_sync(&max98090->pll_det_disable_work);
        cancel_work_sync(&max98090->pll_work);
        max98090->codec = NULL;

        return 0;
}

static struct snd_soc_codec_driver soc_codec_dev_max98090 = {
        .probe   = max98090_probe,
        .remove  = max98090_remove,
        .set_bias_level = max98090_set_bias_level,
};

static const struct regmap_config max98090_regmap = {
        .reg_bits = 8,
        .val_bits = 8,

        .max_register = MAX98090_MAX_REGISTER,
        .reg_defaults = max98090_reg,
        .num_reg_defaults = ARRAY_SIZE(max98090_reg),
        .volatile_reg = max98090_volatile_register,
        .readable_reg = max98090_readable_register,
        .cache_type = REGCACHE_RBTREE,
};

static int max98090_i2c_probe(struct i2c_client *i2c,
                                 const struct i2c_device_id *i2c_id)
{
        struct max98090_priv *max98090;
        const struct acpi_device_id *acpi_id;
        kernel_ulong_t driver_data = 0;
        int ret;

        pr_debug("max98090_i2c_probe\n");

        max98090 = devm_kzalloc(&i2c->dev, sizeof(struct max98090_priv),
                GFP_KERNEL);
        if (max98090 == NULL)
                return -ENOMEM;

        if (ACPI_HANDLE(&i2c->dev)) {
                acpi_id = acpi_match_device(i2c->dev.driver->acpi_match_table,
                                            &i2c->dev);
                if (!acpi_id) {
                        dev_err(&i2c->dev, "No driver data\n");
                        return -EINVAL;
                }
                driver_data = acpi_id->driver_data;
        } else if (i2c_id) {
                driver_data = i2c_id->driver_data;
        }

        max98090->devtype = driver_data;
        i2c_set_clientdata(i2c, max98090);
        max98090->pdata = i2c->dev.platform_data;

        ret = of_property_read_u32(i2c->dev.of_node, "maxim,dmic-freq",
                                   &max98090->dmic_freq);
        if (ret < 0)
                max98090->dmic_freq = MAX98090_DEFAULT_DMIC_FREQ;

        max98090->regmap = devm_regmap_init_i2c(i2c, &max98090_regmap);
        if (IS_ERR(max98090->regmap)) {
                ret = PTR_ERR(max98090->regmap);
                dev_err(&i2c->dev, "Failed to allocate regmap: %d\n", ret);
                goto err_enable;
        }

        ret = devm_request_threaded_irq(&i2c->dev, i2c->irq, NULL,
                max98090_interrupt, IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
                "max98090_interrupt", max98090);
        if (ret < 0) {
                dev_err(&i2c->dev, "request_irq failed: %d\n",
                        ret);
                return ret;
        }

        ret = snd_soc_register_codec(&i2c->dev,
                        &soc_codec_dev_max98090, max98090_dai,
                        ARRAY_SIZE(max98090_dai));
err_enable:
        return ret;
}

static void max98090_i2c_shutdown(struct i2c_client *i2c)
{
        struct max98090_priv *max98090 = dev_get_drvdata(&i2c->dev);

        /*
         * Enable volume smoothing, disable zero cross.  This will cause
         * a quick 40ms ramp to mute on shutdown.
         */
        regmap_write(max98090->regmap,
                M98090_REG_LEVEL_CONTROL, M98090_VSENN_MASK);
        regmap_write(max98090->regmap,
                M98090_REG_DEVICE_SHUTDOWN, 0x00);
        msleep(40);
}

static int max98090_i2c_remove(struct i2c_client *client)
{
        max98090_i2c_shutdown(client);
        snd_soc_unregister_codec(&client->dev);
        return 0;
}

#ifdef CONFIG_PM
static int max98090_runtime_resume(struct device *dev)
{
        struct max98090_priv *max98090 = dev_get_drvdata(dev);

        regcache_cache_only(max98090->regmap, false);

        max98090_reset(max98090);

        regcache_sync(max98090->regmap);

        return 0;
}

static int max98090_runtime_suspend(struct device *dev)
{
        struct max98090_priv *max98090 = dev_get_drvdata(dev);

        regcache_cache_only(max98090->regmap, true);

        return 0;
}
#endif

#ifdef CONFIG_PM_SLEEP
static int max98090_resume(struct device *dev)
{
        struct max98090_priv *max98090 = dev_get_drvdata(dev);
        unsigned int status;

        regcache_mark_dirty(max98090->regmap);

        max98090_reset(max98090);

        /* clear IRQ status */
        regmap_read(max98090->regmap, M98090_REG_DEVICE_STATUS, &status);

        regcache_sync(max98090->regmap);

        return 0;
}

static int max98090_suspend(struct device *dev)
{
        return 0;
}
#endif

static const struct dev_pm_ops max98090_pm = {
        SET_RUNTIME_PM_OPS(max98090_runtime_suspend,
                max98090_runtime_resume, NULL)
        SET_SYSTEM_SLEEP_PM_OPS(max98090_suspend, max98090_resume)
};

static const struct i2c_device_id max98090_i2c_id[] = {
        { "max98090", MAX98090 },
        { "max98091", MAX98091 },
        { }
};
MODULE_DEVICE_TABLE(i2c, max98090_i2c_id);

static const struct of_device_id max98090_of_match[] = {
        { .compatible = "maxim,max98090", },
        { .compatible = "maxim,max98091", },
        { }
};
MODULE_DEVICE_TABLE(of, max98090_of_match);

#ifdef CONFIG_ACPI
static const struct acpi_device_id max98090_acpi_match[] = {
        { "193C9890", MAX98090 },
        { }
};
MODULE_DEVICE_TABLE(acpi, max98090_acpi_match);
#endif

static struct i2c_driver max98090_i2c_driver = {
        .driver = {
                .name = "max98090",
                .owner = THIS_MODULE,
                .pm = &max98090_pm,
                .of_match_table = of_match_ptr(max98090_of_match),
                .acpi_match_table = ACPI_PTR(max98090_acpi_match),
        },
        .probe  = max98090_i2c_probe,
        .shutdown = max98090_i2c_shutdown,
        .remove = max98090_i2c_remove,
        .id_table = max98090_i2c_id,
};

module_i2c_driver(max98090_i2c_driver);

MODULE_DESCRIPTION("ALSA SoC MAX98090 driver");
MODULE_AUTHOR("Peter Hsiang, Jesse Marroqin, Jerry Wong");
MODULE_LICENSE("GPL");