text: /*
   * 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 ... M98090_REG_INTERRUPT_S:
  	case M98090_REG_LINE_INPUT_CONFIG ... 0xD1:
  	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 DECLARE_TLV_DB_RANGE(max98090_micboost_tlv,
  	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 DECLARE_TLV_DB_RANGE(max98090_line_tlv,
  	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 DECLARE_TLV_DB_RANGE(max98090_mixout_tlv,
  	0, 1, TLV_DB_SCALE_ITEM(-1200, 250, 0),
  	2, 3, TLV_DB_SCALE_ITEM(-600, 600, 0)
  );
  
  static const DECLARE_TLV_DB_RANGE(max98090_hp_tlv,
  	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 DECLARE_TLV_DB_RANGE(max98090_spk_tlv,
  	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 DECLARE_TLV_DB_RANGE(max98090_rcv_lout_tlv,
  	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 int max98090_shdn_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);
  
  	if (event & SND_SOC_DAPM_POST_PMU)
  		max98090->shdn_pending = true;
  
  	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, max98090_shdn_event,
  			SND_SOC_DAPM_POST_PMU),
  	SND_SOC_DAPM_SUPPLY("DMICR_ENA", M98090_REG_DIGITAL_MIC_ENABLE,
  		 M98090_DIGMICR_SHIFT, 0, max98090_shdn_event,
  			 SND_SOC_DAPM_POST_PMU),
  	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_E("ADCL", NULL, M98090_REG_INPUT_ENABLE,
  		M98090_ADLEN_SHIFT, 0, max98090_shdn_event,
  		SND_SOC_DAPM_POST_PMU),
  	SND_SOC_DAPM_ADC_E("ADCR", NULL, M98090_REG_INPUT_ENABLE,
  		M98090_ADREN_SHIFT, 0, max98090_shdn_event,
  		SND_SOC_DAPM_POST_PMU),
  
  	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 {
  			ret = clk_prepare_enable(max98090->mclk);
  			if (ret)
  				return ret;
  		}
  		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 const 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_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 void max98090_seq_notifier(struct snd_soc_dapm_context *dapm,
  	enum snd_soc_dapm_type event, int subseq)
  {
  	struct snd_soc_codec *codec = snd_soc_dapm_to_codec(dapm);
  	struct max98090_priv *max98090 = snd_soc_codec_get_drvdata(codec);
  
  	if (max98090->shdn_pending) {
  		snd_soc_update_bits(codec, M98090_REG_DEVICE_SHUTDOWN,
  				M98090_SHDNN_MASK, 0);
  		msleep(40);
  		snd_soc_update_bits(codec, M98090_REG_DEVICE_SHUTDOWN,
  				M98090_SHDNN_MASK, M98090_SHDNN_MASK);
  		max98090->shdn_pending = false;
  	}
  }
  
  static struct snd_soc_codec_driver soc_codec_dev_max98090 = {
  	.probe   = max98090_probe,
  	.remove  = max98090_remove,
  	.seq_notifier = max98090_seq_notifier,
  	.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",
  		.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");
  