sound/soc/codecs/es8326.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 //
   3 // es8326.c -- es8326 ALSA SoC audio driver
   4 // Copyright Everest Semiconductor Co., Ltd
   5 //
   6 // Authors: David Yang <yangxiaohua@everest-semi.com>
   7 //
   8
   9 #include <linux/clk.h>
  10 #include <linux/i2c.h>
  11 #include <linux/interrupt.h>
  12 #include <linux/irq.h>
  13 #include <linux/module.h>
  14 #include <sound/jack.h>
  15 #include <sound/pcm_params.h>
  16 #include <sound/soc.h>
  17 #include <sound/soc-dapm.h>
  18 #include <sound/tlv.h>
  19 #include "es8326.h"
  20
  21 struct es8326_priv {
  22         struct clk *mclk;
  23         struct i2c_client *i2c;
  24         struct regmap *regmap;
  25         struct snd_soc_component *component;
  26         struct delayed_work jack_detect_work;
  27         struct delayed_work button_press_work;
  28         struct snd_soc_jack *jack;
  29         int irq;
  30         /* The lock protects the situation that an irq is generated
  31          * while enabling or disabling or during an irq.
  32          */
  33         struct mutex lock;
  34         u8 mic1_src;
  35         u8 mic2_src;
  36         u8 jack_pol;
  37         u8 interrupt_src;
  38         u8 interrupt_clk;
  39         bool jd_inverted;
  40         unsigned int sysclk;
  41 };
  42
  43 static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(dac_vol_tlv, -9550, 50, 0);
  44 static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(adc_vol_tlv, -9550, 50, 0);
  45 static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(adc_analog_pga_tlv, 0, 300, 0);
  46 static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(adc_pga_tlv, 0, 600, 0);
  47 static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(softramp_rate, 0, 100, 0);
  48 static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(drc_target_tlv, -3200, 200, 0);
  49 static const SNDRV_CTL_TLVD_DECLARE_DB_SCALE(drc_recovery_tlv, -125, 250, 0);
  50
  51 static const char *const winsize[] = {
  52         "0.25db/2  LRCK",
  53         "0.25db/4  LRCK",
  54         "0.25db/8  LRCK",
  55         "0.25db/16  LRCK",
  56         "0.25db/32  LRCK",
  57         "0.25db/64  LRCK",
  58         "0.25db/128  LRCK",
  59         "0.25db/256  LRCK",
  60         "0.25db/512  LRCK",
  61         "0.25db/1024  LRCK",
  62         "0.25db/2048  LRCK",
  63         "0.25db/4096  LRCK",
  64         "0.25db/8192  LRCK",
  65         "0.25db/16384  LRCK",
  66         "0.25db/32768  LRCK",
  67         "0.25db/65536  LRCK",
  68 };
  69
  70 static const char *const dacpol_txt[] = {
  71         "Normal", "R Invert", "L Invert", "L + R Invert" };
  72
  73 static const struct soc_enum dacpol =
  74         SOC_ENUM_SINGLE(ES8326_DAC_DSM, 4, 4, dacpol_txt);
  75 static const struct soc_enum alc_winsize =
  76         SOC_ENUM_SINGLE(ES8326_ADC_RAMPRATE, 4, 16, winsize);
  77 static const struct soc_enum drc_winsize =
  78         SOC_ENUM_SINGLE(ES8326_DRC_WINSIZE, 4, 16, winsize);
  79
  80 static const struct snd_kcontrol_new es8326_snd_controls[] = {
  81         SOC_SINGLE_TLV("DAC Playback Volume", ES8326_DAC_VOL, 0, 0xbf, 0, dac_vol_tlv),
  82         SOC_ENUM("Playback Polarity", dacpol),
  83         SOC_SINGLE_TLV("DAC Ramp Rate", ES8326_DAC_RAMPRATE, 0, 0x0f, 0, softramp_rate),
  84         SOC_SINGLE_TLV("DRC Recovery Level", ES8326_DRC_RECOVERY, 0, 4, 0, drc_recovery_tlv),
  85         SOC_ENUM("DRC Winsize", drc_winsize),
  86         SOC_SINGLE_TLV("DRC Target Level", ES8326_DRC_WINSIZE, 0, 0x0f, 0, drc_target_tlv),
  87
  88         SOC_DOUBLE_R_TLV("ADC Capture Volume", ES8326_ADC1_VOL, ES8326_ADC2_VOL, 0, 0xff, 0,
  89                          adc_vol_tlv),
  90         SOC_DOUBLE_TLV("ADC PGA Volume", ES8326_ADC_SCALE, 4, 0, 5, 0, adc_pga_tlv),
  91         SOC_SINGLE_TLV("ADC PGA Gain Volume", ES8326_PGAGAIN, 0, 10, 0, adc_analog_pga_tlv),
  92         SOC_SINGLE_TLV("ADC Ramp Rate", ES8326_ADC_RAMPRATE, 0, 0x0f, 0, softramp_rate),
  93         SOC_SINGLE("ALC Capture Switch", ES8326_ALC_RECOVERY, 3, 1, 0),
  94         SOC_SINGLE_TLV("ALC Capture Recovery Level", ES8326_ALC_LEVEL,
  95                         0, 4, 0, drc_recovery_tlv),
  96         SOC_ENUM("ALC Capture Winsize", alc_winsize),
  97         SOC_SINGLE_TLV("ALC Capture Target Level", ES8326_ALC_LEVEL,
  98                         0, 0x0f, 0, drc_target_tlv),
  99
 100 };
 101
 102 static const struct snd_soc_dapm_widget es8326_dapm_widgets[] = {
 103         SND_SOC_DAPM_INPUT("MIC1"),
 104         SND_SOC_DAPM_INPUT("MIC2"),
 105         SND_SOC_DAPM_INPUT("MIC3"),
 106         SND_SOC_DAPM_INPUT("MIC4"),
 107
 108         SND_SOC_DAPM_ADC("ADC L", NULL, SND_SOC_NOPM, 0, 0),
 109         SND_SOC_DAPM_ADC("ADC R", NULL, SND_SOC_NOPM, 0, 0),
 110
 111         /* Digital Interface */
 112         SND_SOC_DAPM_AIF_OUT("I2S OUT", "I2S1 Capture", 0, SND_SOC_NOPM, 0, 0),
 113         SND_SOC_DAPM_AIF_IN("I2S IN", "I2S1 Playback", 0, SND_SOC_NOPM, 0, 0),
 114
 115         /* ADC Digital Mute */
 116         SND_SOC_DAPM_PGA("ADC L1", ES8326_ADC_MUTE, 0, 1, NULL, 0),
 117         SND_SOC_DAPM_PGA("ADC R1", ES8326_ADC_MUTE, 1, 1, NULL, 0),
 118         SND_SOC_DAPM_PGA("ADC L2", ES8326_ADC_MUTE, 2, 1, NULL, 0),
 119         SND_SOC_DAPM_PGA("ADC R2", ES8326_ADC_MUTE, 3, 1, NULL, 0),
 120
 121         /* Analog Power Supply*/
 122         SND_SOC_DAPM_DAC("Right DAC", NULL, ES8326_ANA_PDN, 0, 1),
 123         SND_SOC_DAPM_DAC("Left DAC", NULL, ES8326_ANA_PDN, 1, 1),
 124         SND_SOC_DAPM_SUPPLY("Analog Power", ES8326_ANA_PDN, 7, 1, NULL, 0),
 125         SND_SOC_DAPM_SUPPLY("IBias Power", ES8326_ANA_PDN, 6, 1, NULL, 0),
 126         SND_SOC_DAPM_SUPPLY("ADC Vref", ES8326_ANA_PDN, 5, 1, NULL, 0),
 127         SND_SOC_DAPM_SUPPLY("DAC Vref", ES8326_ANA_PDN, 4, 1, NULL, 0),
 128         SND_SOC_DAPM_SUPPLY("Vref Power", ES8326_ANA_PDN, 3, 1, NULL, 0),
 129         SND_SOC_DAPM_SUPPLY("MICBIAS1", ES8326_ANA_MICBIAS, 2, 0, NULL, 0),
 130         SND_SOC_DAPM_SUPPLY("MICBIAS2", ES8326_ANA_MICBIAS, 3, 0, NULL, 0),
 131
 132         SND_SOC_DAPM_PGA("LHPMIX", ES8326_DAC2HPMIX, 7, 0, NULL, 0),
 133         SND_SOC_DAPM_PGA("RHPMIX", ES8326_DAC2HPMIX, 3, 0, NULL, 0),
 134
 135         /* Headphone Charge Pump and Output */
 136         SND_SOC_DAPM_SUPPLY("HPOR Cal", ES8326_HP_CAL, 7, 1, NULL, 0),
 137         SND_SOC_DAPM_SUPPLY("HPOL Cal", ES8326_HP_CAL, 3, 1, NULL, 0),
 138         SND_SOC_DAPM_SUPPLY("Headphone Charge Pump", ES8326_HP_DRIVER,
 139                             3, 1, NULL, 0),
 140         SND_SOC_DAPM_SUPPLY("Headphone Driver Bias", ES8326_HP_DRIVER,
 141                             2, 1, NULL, 0),
 142         SND_SOC_DAPM_SUPPLY("Headphone LDO", ES8326_HP_DRIVER,
 143                             1, 1, NULL, 0),
 144         SND_SOC_DAPM_SUPPLY("Headphone Reference", ES8326_HP_DRIVER,
 145                             0, 1, NULL, 0),
 146         SND_SOC_DAPM_REG(snd_soc_dapm_supply, "HPOR Supply", ES8326_HP_CAL,
 147                          ES8326_HPOR_SHIFT, 7, 7, 0),
 148         SND_SOC_DAPM_REG(snd_soc_dapm_supply, "HPOL Supply", ES8326_HP_CAL,
 149                          0, 7, 7, 0),
 150
 151         SND_SOC_DAPM_OUTPUT("HPOL"),
 152         SND_SOC_DAPM_OUTPUT("HPOR"),
 153 };
 154
 155 static const struct snd_soc_dapm_route es8326_dapm_routes[] = {
 156         {"ADC L1", NULL, "MIC1"},
 157         {"ADC R1", NULL, "MIC2"},
 158         {"ADC L2", NULL, "MIC3"},
 159         {"ADC R2", NULL, "MIC4"},
 160
 161         {"ADC L", NULL, "ADC L1"},
 162         {"ADC R", NULL, "ADC R1"},
 163         {"ADC L", NULL, "ADC L2"},
 164         {"ADC R", NULL, "ADC R2"},
 165
 166         {"I2S OUT", NULL, "ADC L"},
 167         {"I2S OUT", NULL, "ADC R"},
 168
 169         {"I2S OUT", NULL, "Analog Power"},
 170         {"I2S OUT", NULL, "ADC Vref"},
 171         {"I2S OUT", NULL, "Vref Power"},
 172         {"I2S OUT", NULL, "IBias Power"},
 173         {"I2S IN", NULL, "Analog Power"},
 174         {"I2S IN", NULL, "DAC Vref"},
 175         {"I2S IN", NULL, "Vref Power"},
 176         {"I2S IN", NULL, "IBias Power"},
 177
 178         {"Right DAC", NULL, "I2S IN"},
 179         {"Left DAC", NULL, "I2S IN"},
 180
 181         {"LHPMIX", NULL, "Left DAC"},
 182         {"RHPMIX", NULL, "Right DAC"},
 183
 184         {"HPOR", NULL, "HPOR Cal"},
 185         {"HPOL", NULL, "HPOL Cal"},
 186         {"HPOR", NULL, "HPOR Supply"},
 187         {"HPOL", NULL, "HPOL Supply"},
 188         {"HPOL", NULL, "Headphone Charge Pump"},
 189         {"HPOR", NULL, "Headphone Charge Pump"},
 190         {"HPOL", NULL, "Headphone Driver Bias"},
 191         {"HPOR", NULL, "Headphone Driver Bias"},
 192         {"HPOL", NULL, "Headphone LDO"},
 193         {"HPOR", NULL, "Headphone LDO"},
 194         {"HPOL", NULL, "Headphone Reference"},
 195         {"HPOR", NULL, "Headphone Reference"},
 196
 197         {"HPOL", NULL, "LHPMIX"},
 198         {"HPOR", NULL, "RHPMIX"},
 199 };
 200
 201 static const struct regmap_range es8326_volatile_ranges[] = {
 202         regmap_reg_range(ES8326_HP_DETECT, ES8326_HP_DETECT),
 203 };
 204
 205 static const struct regmap_access_table es8326_volatile_table = {
 206         .yes_ranges = es8326_volatile_ranges,
 207         .n_yes_ranges = ARRAY_SIZE(es8326_volatile_ranges),
 208 };
 209
 210 static const struct regmap_config es8326_regmap_config = {
 211         .reg_bits = 8,
 212         .val_bits = 8,
 213         .max_register = 0xff,
 214         .volatile_table = &es8326_volatile_table,
 215         .cache_type = REGCACHE_RBTREE,
 216 };
 217
 218 struct _coeff_div {
 219         u16 fs;
 220         u32 rate;
 221         u32 mclk;
 222         u8 reg4;
 223         u8 reg5;
 224         u8 reg6;
 225         u8 reg7;
 226         u8 reg8;
 227         u8 reg9;
 228         u8 rega;
 229         u8 regb;
 230 };
 231
 232 /* codec hifi mclk clock divider coefficients */
 233 /* {ratio, LRCK, MCLK, REG04, REG05, REG06, REG07, REG08, REG09, REG10, REG11} */
 234 static const struct _coeff_div coeff_div[] = {
 235         {32, 8000, 256000, 0x60, 0x00, 0x0F, 0x75, 0x0A, 0x1B, 0x1F, 0x7F},
 236         {32, 16000, 512000, 0x20, 0x00, 0x0D, 0x75, 0x0A, 0x1B, 0x1F, 0x3F},
 237         {32, 44100, 1411200, 0x00, 0x00, 0x13, 0x2D, 0x0A, 0x0A, 0x1F, 0x1F},
 238         {32, 48000, 1536000, 0x00, 0x00, 0x13, 0x2D, 0x0A, 0x0A, 0x1F, 0x1F},
 239         {36, 8000, 288000, 0x20, 0x00, 0x0D, 0x75, 0x0A, 0x1B, 0x23, 0x47},
 240         {36, 16000, 576000, 0x20, 0x00, 0x0D, 0x75, 0x0A, 0x1B, 0x23, 0x47},
 241         {48, 8000, 384000, 0x60, 0x02, 0x1F, 0x75, 0x0A, 0x1B, 0x1F, 0x7F},
 242         {48, 16000, 768000, 0x20, 0x02, 0x0F, 0x75, 0x0A, 0x1B, 0x1F, 0x3F},
 243         {48, 48000, 2304000, 0x00, 0x02, 0x0D, 0x2D, 0x0A, 0x0A, 0x1F, 0x1F},
 244         {64, 8000, 512000, 0x60, 0x00, 0x0D, 0x75, 0x0A, 0x1B, 0x1F, 0x7F},
 245         {64, 16000, 1024000, 0x20, 0x00, 0x05, 0x75, 0x0A, 0x1B, 0x1F, 0x3F},
 246
 247         {64, 44100, 2822400, 0x00, 0x00, 0x11, 0x2D, 0x0A, 0x0A, 0x1F, 0x1F},
 248         {64, 48000, 3072000, 0x00, 0x00, 0x11, 0x2D, 0x0A, 0x0A, 0x1F, 0x1F},
 249         {72, 8000, 576000, 0x20, 0x00, 0x13, 0x35, 0x0A, 0x1B, 0x23, 0x47},
 250         {72, 16000, 1152000, 0x20, 0x00, 0x05, 0x75, 0x0A, 0x1B, 0x23, 0x47},
 251         {96, 8000, 768000, 0x60, 0x02, 0x1D, 0x75, 0x0A, 0x1B, 0x1F, 0x7F},
 252         {96, 16000, 1536000, 0x20, 0x02, 0x0D, 0x75, 0x0A, 0x1B, 0x1F, 0x3F},
 253         {100, 48000, 4800000, 0x04, 0x04, 0x3F, 0x6D, 0x38, 0x08, 0x4f, 0x1f},
 254         {125, 48000, 6000000, 0x04, 0x04, 0x1F, 0x2D, 0x0A, 0x0A, 0x27, 0x27},
 255         {128, 8000, 1024000, 0x60, 0x00, 0x13, 0x35, 0x0A, 0x1B, 0x1F, 0x7F},
 256         {128, 16000, 2048000, 0x20, 0x00, 0x11, 0x35, 0x0A, 0x1B, 0x1F, 0x3F},
 257
 258         {128, 44100, 5644800, 0x00, 0x00, 0x01, 0x2D, 0x0A, 0x0A, 0x1F, 0x1F},
 259         {128, 48000, 6144000, 0x00, 0x00, 0x01, 0x2D, 0x0A, 0x0A, 0x1F, 0x1F},
 260         {144, 8000, 1152000, 0x20, 0x00, 0x03, 0x35, 0x0A, 0x1B, 0x23, 0x47},
 261         {144, 16000, 2304000, 0x20, 0x00, 0x11, 0x35, 0x0A, 0x1B, 0x23, 0x47},
 262         {192, 8000, 1536000, 0x60, 0x02, 0x0D, 0x75, 0x0A, 0x1B, 0x1F, 0x7F},
 263         {192, 16000, 3072000, 0x20, 0x02, 0x05, 0x75, 0x0A, 0x1B, 0x1F, 0x3F},
 264         {200, 48000, 9600000, 0x04, 0x04, 0x0F, 0x2D, 0x0A, 0x0A, 0x1F, 0x1F},
 265         {250, 48000, 12000000, 0x04, 0x04, 0x0F, 0x2D, 0x0A, 0x0A, 0x27, 0x27},
 266         {256, 8000, 2048000, 0x60, 0x00, 0x11, 0x35, 0x0A, 0x1B, 0x1F, 0x7F},
 267         {256, 16000, 4096000, 0x20, 0x00, 0x01, 0x35, 0x0A, 0x1B, 0x1F, 0x3F},
 268
 269         {256, 44100, 11289600, 0x00, 0x00, 0x10, 0x2D, 0x0A, 0x0A, 0x1F, 0x1F},
 270         {256, 48000, 12288000, 0x00, 0x00, 0x30, 0x2D, 0x0A, 0x0A, 0x1F, 0x1F},
 271         {288, 8000, 2304000, 0x20, 0x00, 0x01, 0x35, 0x0A, 0x1B, 0x23, 0x47},
 272         {384, 8000, 3072000, 0x60, 0x02, 0x05, 0x75, 0x0A, 0x1B, 0x1F, 0x7F},
 273         {384, 16000, 6144000, 0x20, 0x02, 0x03, 0x35, 0x0A, 0x1B, 0x1F, 0x3F},
 274         {384, 48000, 18432000, 0x00, 0x02, 0x01, 0x2D, 0x0A, 0x0A, 0x1F, 0x1F},
 275         {400, 48000, 19200000, 0x09, 0x04, 0x0f, 0x6d, 0x3a, 0x0A, 0x4F, 0x1F},
 276         {500, 48000, 24000000, 0x18, 0x04, 0x1F, 0x2D, 0x0A, 0x0A, 0x1F, 0x1F},
 277         {512, 8000, 4096000, 0x60, 0x00, 0x01, 0x35, 0x0A, 0x1B, 0x1F, 0x7F},
 278         {512, 16000, 8192000, 0x20, 0x00, 0x10, 0x35, 0x0A, 0x1B, 0x1F, 0x3F},
 279
 280         {512, 44100, 22579200, 0x00, 0x00, 0x00, 0x2D, 0x0A, 0x0A, 0x1F, 0x1F},
 281         {512, 48000, 24576000, 0x00, 0x00, 0x00, 0x2D, 0x0A, 0x0A, 0x1F, 0x1F},
 282         {768, 8000, 6144000, 0x60, 0x02, 0x11, 0x35, 0x0A, 0x1B, 0x1F, 0x7F},
 283         {768, 16000, 12288000, 0x20, 0x02, 0x01, 0x35, 0x0A, 0x1B, 0x1F, 0x3F},
 284         {800, 48000, 38400000, 0x00, 0x18, 0x13, 0x2D, 0x0A, 0x0A, 0x1F, 0x1F},
 285         {1024, 8000, 8192000, 0x60, 0x00, 0x10, 0x35, 0x0A, 0x1B, 0x1F, 0x7F},
 286         {1024, 16000, 16384000, 0x20, 0x00, 0x00, 0x35, 0x0A, 0x1B, 0x1F, 0x3F},
 287         {1152, 16000, 18432000, 0x20, 0x08, 0x11, 0x35, 0x0A, 0x1B, 0x1F, 0x3F},
 288         {1536, 8000, 12288000, 0x60, 0x02, 0x01, 0x35, 0x0A, 0x1B, 0x1F, 0x7F},
 289
 290         {1536, 16000, 24576000, 0x20, 0x02, 0x10, 0x35, 0x0A, 0x1B, 0x1F, 0x3F},
 291         {1625, 8000, 13000000, 0x0C, 0x18, 0x1F, 0x2D, 0x0A, 0x0A, 0x27, 0x27},
 292         {1625, 16000, 26000000, 0x0C, 0x18, 0x1F, 0x2D, 0x0A, 0x0A, 0x27, 0x27},
 293         {2048, 8000, 16384000, 0x60, 0x00, 0x00, 0x35, 0x0A, 0x1B, 0x1F, 0x7F},
 294         {2304, 8000, 18432000, 0x40, 0x02, 0x10, 0x35, 0x0A, 0x1B, 0x1F, 0x5F},
 295         {3072, 8000, 24576000, 0x60, 0x02, 0x10, 0x35, 0x0A, 0x1B, 0x1F, 0x7F},
 296         {3250, 8000, 26000000, 0x0C, 0x18, 0x0F, 0x2D, 0x0A, 0x0A, 0x27, 0x27},
 297
 298 };
 299
 300 static inline int get_coeff(int mclk, int rate)
 301 {
 302         int i;
 303
 304         for (i = 0; i < ARRAY_SIZE(coeff_div); i++) {
 305                 if (coeff_div[i].rate == rate && coeff_div[i].mclk == mclk)
 306                         return i;
 307         }
 308
 309         return -EINVAL;
 310 }
 311
 312 static int es8326_set_dai_sysclk(struct snd_soc_dai *codec_dai,
 313                                  int clk_id, unsigned int freq, int dir)
 314 {
 315         struct snd_soc_component *codec = codec_dai->component;
 316         struct es8326_priv *es8326 = snd_soc_component_get_drvdata(codec);
 317
 318         es8326->sysclk = freq;
 319
 320         return 0;
 321 }
 322
 323 static int es8326_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
 324 {
 325         struct snd_soc_component *component = codec_dai->component;
 326         u8 iface = 0;
 327
 328         switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) {
 329         case SND_SOC_DAIFMT_CBC_CFP:
 330                 snd_soc_component_update_bits(component, ES8326_RESET,
 331                                               ES8326_MASTER_MODE_EN, ES8326_MASTER_MODE_EN);
 332                 break;
 333         case SND_SOC_DAIFMT_CBC_CFC:
 334                 break;
 335         default:
 336                 return -EINVAL;
 337         }
 338
 339         /* interface format */
 340         switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
 341         case SND_SOC_DAIFMT_I2S:
 342                 break;
 343         case SND_SOC_DAIFMT_RIGHT_J:
 344                 dev_err(component->dev, "Codec driver does not support right justified\n");
 345                 return -EINVAL;
 346         case SND_SOC_DAIFMT_LEFT_J:
 347                 iface |= ES8326_DAIFMT_LEFT_J;
 348                 break;
 349         case SND_SOC_DAIFMT_DSP_A:
 350                 iface |= ES8326_DAIFMT_DSP_A;
 351                 break;
 352         case SND_SOC_DAIFMT_DSP_B:
 353                 iface |= ES8326_DAIFMT_DSP_B;
 354                 break;
 355         default:
 356                 return -EINVAL;
 357         }
 358
 359         snd_soc_component_update_bits(component, ES8326_FMT, ES8326_DAIFMT_MASK, iface);
 360
 361         return 0;
 362 }
 363
 364 static int es8326_pcm_hw_params(struct snd_pcm_substream *substream,
 365                                 struct snd_pcm_hw_params *params,
 366                                 struct snd_soc_dai *dai)
 367 {
 368         struct snd_soc_component *component = dai->component;
 369         struct es8326_priv *es8326 = snd_soc_component_get_drvdata(component);
 370         u8 srate = 0;
 371         int coeff;
 372
 373         coeff = get_coeff(es8326->sysclk, params_rate(params));
 374         /* bit size */
 375         switch (params_format(params)) {
 376         case SNDRV_PCM_FORMAT_S16_LE:
 377                 srate |= ES8326_S16_LE;
 378                 break;
 379         case SNDRV_PCM_FORMAT_S20_3LE:
 380                 srate |= ES8326_S20_3_LE;
 381                 break;
 382         case SNDRV_PCM_FORMAT_S18_3LE:
 383                 srate |= ES8326_S18_LE;
 384                 break;
 385         case SNDRV_PCM_FORMAT_S24_LE:
 386                 srate |= ES8326_S24_LE;
 387                 break;
 388         case SNDRV_PCM_FORMAT_S32_LE:
 389                 srate |= ES8326_S32_LE;
 390                 break;
 391         default:
 392                 return -EINVAL;
 393         }
 394
 395         /* set iface & srate */
 396         snd_soc_component_update_bits(component, ES8326_FMT, ES8326_DATA_LEN_MASK, srate);
 397
 398         if (coeff >= 0) {
 399                 regmap_write(es8326->regmap,  ES8326_CLK_DIV1,
 400                              coeff_div[coeff].reg4);
 401                 regmap_write(es8326->regmap,  ES8326_CLK_DIV2,
 402                              coeff_div[coeff].reg5);
 403                 regmap_write(es8326->regmap,  ES8326_CLK_DLL,
 404                              coeff_div[coeff].reg6);
 405                 regmap_write(es8326->regmap,  ES8326_CLK_MUX,
 406                              coeff_div[coeff].reg7);
 407                 regmap_write(es8326->regmap,  ES8326_CLK_ADC_SEL,
 408                              coeff_div[coeff].reg8);
 409                 regmap_write(es8326->regmap,  ES8326_CLK_DAC_SEL,
 410                              coeff_div[coeff].reg9);
 411                 regmap_write(es8326->regmap,  ES8326_CLK_ADC_OSR,
 412                              coeff_div[coeff].rega);
 413                 regmap_write(es8326->regmap,  ES8326_CLK_DAC_OSR,
 414                              coeff_div[coeff].regb);
 415         } else {
 416                 dev_warn(component->dev, "Clock coefficients do not match");
 417         }
 418
 419         return 0;
 420 }
 421
 422 static int es8326_set_bias_level(struct snd_soc_component *codec,
 423                                  enum snd_soc_bias_level level)
 424 {
 425         struct es8326_priv *es8326 = snd_soc_component_get_drvdata(codec);
 426         int ret;
 427
 428         switch (level) {
 429         case SND_SOC_BIAS_ON:
 430                 ret = clk_prepare_enable(es8326->mclk);
 431                 if (ret)
 432                         return ret;
 433                 regmap_write(es8326->regmap, ES8326_RESET, ES8326_PWRUP_SEQ_EN);
 434                 regmap_write(es8326->regmap, ES8326_INTOUT_IO, 0x45);
 435                 regmap_write(es8326->regmap, ES8326_SDINOUT1_IO,
 436                             (ES8326_IO_DMIC_CLK << ES8326_SDINOUT1_SHIFT));
 437                 regmap_write(es8326->regmap, ES8326_SDINOUT23_IO, ES8326_IO_INPUT);
 438                 regmap_write(es8326->regmap, ES8326_CLK_RESAMPLE, 0x05);
 439                 regmap_write(es8326->regmap, ES8326_VMIDSEL, 0x02);
 440                 regmap_write(es8326->regmap, ES8326_PGA_PDN, 0x40);
 441                 regmap_write(es8326->regmap, ES8326_DAC2HPMIX, 0xAA);
 442                 regmap_write(es8326->regmap, ES8326_RESET, ES8326_CSM_ON);
 443                 break;
 444         case SND_SOC_BIAS_PREPARE:
 445                 break;
 446         case SND_SOC_BIAS_STANDBY:
 447                 break;
 448         case SND_SOC_BIAS_OFF:
 449                 clk_disable_unprepare(es8326->mclk);
 450                 regmap_write(es8326->regmap, ES8326_DAC2HPMIX, 0x11);
 451                 regmap_write(es8326->regmap, ES8326_RESET, ES8326_CSM_OFF);
 452                 regmap_write(es8326->regmap, ES8326_PGA_PDN, 0xF8);
 453                 regmap_write(es8326->regmap, ES8326_VMIDSEL, 0x00);
 454                 regmap_write(es8326->regmap, ES8326_INT_SOURCE, 0x08);
 455                 regmap_write(es8326->regmap, ES8326_SDINOUT1_IO, ES8326_IO_INPUT);
 456                 regmap_write(es8326->regmap, ES8326_SDINOUT23_IO, ES8326_IO_INPUT);
 457                 regmap_write(es8326->regmap, ES8326_RESET,
 458                              ES8326_CODEC_RESET | ES8326_PWRUP_SEQ_EN);
 459                 break;
 460         }
 461
 462         return 0;
 463 }
 464
 465 #define es8326_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
 466         SNDRV_PCM_FMTBIT_S24_LE)
 467
 468 static const struct snd_soc_dai_ops es8326_ops = {
 469         .hw_params = es8326_pcm_hw_params,
 470         .set_fmt = es8326_set_dai_fmt,
 471         .set_sysclk = es8326_set_dai_sysclk,
 472 };
 473
 474 static struct snd_soc_dai_driver es8326_dai = {
 475         .name = "ES8326 HiFi",
 476         .playback = {
 477                 .stream_name = "Playback",
 478                 .channels_min = 1,
 479                 .channels_max = 2,
 480                 .rates = SNDRV_PCM_RATE_8000_48000,
 481                 .formats = es8326_FORMATS,
 482                 },
 483         .capture = {
 484                 .stream_name = "Capture",
 485                 .channels_min = 1,
 486                 .channels_max = 2,
 487                 .rates = SNDRV_PCM_RATE_8000_48000,
 488                 .formats = es8326_FORMATS,
 489                 },
 490         .ops = &es8326_ops,
 491         .symmetric_rate = 1,
 492 };
 493
 494 static void es8326_enable_micbias(struct snd_soc_component *component)
 495 {
 496         struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
 497
 498         snd_soc_dapm_mutex_lock(dapm);
 499         snd_soc_dapm_force_enable_pin_unlocked(dapm, "MICBIAS1");
 500         snd_soc_dapm_force_enable_pin_unlocked(dapm, "MICBIAS2");
 501         snd_soc_dapm_sync_unlocked(dapm);
 502         snd_soc_dapm_mutex_unlock(dapm);
 503 }
 504
 505 static void es8326_disable_micbias(struct snd_soc_component *component)
 506 {
 507         struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
 508
 509         snd_soc_dapm_mutex_lock(dapm);
 510         snd_soc_dapm_disable_pin_unlocked(dapm, "MICBIAS1");
 511         snd_soc_dapm_disable_pin_unlocked(dapm, "MICBIAS2");
 512         snd_soc_dapm_sync_unlocked(dapm);
 513         snd_soc_dapm_mutex_unlock(dapm);
 514 }
 515
 516 /*
 517  *      For button detection, set the following in soundcard
 518  *      snd_jack_set_key(jack->jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
 519  *      snd_jack_set_key(jack->jack, SND_JACK_BTN_1, KEY_VOLUMEUP);
 520  *      snd_jack_set_key(jack->jack, SND_JACK_BTN_2, KEY_VOLUMEDOWN);
 521  */
 522 static void es8326_jack_button_handler(struct work_struct *work)
 523 {
 524         struct es8326_priv *es8326 =
 525                 container_of(work, struct es8326_priv, button_press_work.work);
 526         struct snd_soc_component *comp = es8326->component;
 527         unsigned int iface;
 528         static int button_to_report, press_count;
 529         static int prev_button, cur_button;
 530
 531         if (!(es8326->jack->status & SND_JACK_HEADSET)) /* Jack unplugged */
 532                 return;
 533
 534         mutex_lock(&es8326->lock);
 535         iface = snd_soc_component_read(comp, ES8326_HP_DETECT);
 536         switch (iface) {
 537         case 0x93:
 538                 /* pause button detected */
 539                 cur_button = SND_JACK_BTN_0;
 540                 break;
 541         case 0x6f:
 542                 /* button volume up */
 543                 cur_button = SND_JACK_BTN_1;
 544                 break;
 545         case 0x27:
 546                 /* button volume down */
 547                 cur_button = SND_JACK_BTN_2;
 548                 break;
 549         case 0x1e:
 550                 /* button released or not pressed */
 551                 cur_button = 0;
 552                 break;
 553         default:
 554                 break;
 555         }
 556
 557         if ((prev_button == cur_button) && (cur_button != 0)) {
 558                 press_count++;
 559                 if (press_count > 10) {
 560                         /* report a press every 500ms */
 561                         snd_soc_jack_report(es8326->jack, cur_button,
 562                                         SND_JACK_BTN_0 | SND_JACK_BTN_1 | SND_JACK_BTN_2);
 563                         press_count = 0;
 564                 }
 565                 button_to_report = cur_button;
 566                 queue_delayed_work(system_wq, &es8326->button_press_work,
 567                                    msecs_to_jiffies(50));
 568         } else if (prev_button != cur_button) {
 569                 /* mismatch, detect again */
 570                 prev_button = cur_button;
 571                 queue_delayed_work(system_wq, &es8326->button_press_work,
 572                                    msecs_to_jiffies(50));
 573         } else {
 574                 /* released or no pressed */
 575                 if (button_to_report != 0) {
 576                         snd_soc_jack_report(es8326->jack, button_to_report,
 577                                     SND_JACK_BTN_0 | SND_JACK_BTN_1 | SND_JACK_BTN_2);
 578                         snd_soc_jack_report(es8326->jack, 0,
 579                                     SND_JACK_BTN_0 | SND_JACK_BTN_1 | SND_JACK_BTN_2);
 580                         button_to_report = 0;
 581                 }
 582         }
 583         mutex_unlock(&es8326->lock);
 584 }
 585
 586 static void es8326_jack_detect_handler(struct work_struct *work)
 587 {
 588         struct es8326_priv *es8326 =
 589                 container_of(work, struct es8326_priv, jack_detect_work.work);
 590         struct snd_soc_component *comp = es8326->component;
 591         unsigned int iface;
 592
 593         mutex_lock(&es8326->lock);
 594         iface = snd_soc_component_read(comp, ES8326_HP_DETECT);
 595         dev_dbg(comp->dev, "gpio flag %#04x", iface);
 596         if ((iface & ES8326_HPINSERT_FLAG) == 0) {
 597                 /* Jack unplugged or spurious IRQ */
 598                 dev_dbg(comp->dev, "No headset detected");
 599                 if (es8326->jack->status & SND_JACK_HEADPHONE) {
 600                         snd_soc_jack_report(es8326->jack, 0, SND_JACK_HEADSET);
 601                         snd_soc_component_write(comp, ES8326_ADC1_SRC, es8326->mic2_src);
 602                         es8326_disable_micbias(comp);
 603                 }
 604         } else if ((iface & ES8326_HPINSERT_FLAG) == ES8326_HPINSERT_FLAG) {
 605                 if (es8326->jack->status & SND_JACK_HEADSET) {
 606                         /* detect button */
 607                         queue_delayed_work(system_wq, &es8326->button_press_work, 10);
 608                 } else {
 609                         if ((iface & ES8326_HPBUTTON_FLAG) == 0x00) {
 610                                 dev_dbg(comp->dev, "Headset detected");
 611                                 snd_soc_jack_report(es8326->jack,
 612                                                     SND_JACK_HEADSET, SND_JACK_HEADSET);
 613                                 snd_soc_component_write(comp,
 614                                                         ES8326_ADC1_SRC, es8326->mic1_src);
 615                         } else {
 616                                 dev_dbg(comp->dev, "Headphone detected");
 617                                 snd_soc_jack_report(es8326->jack,
 618                                                     SND_JACK_HEADPHONE, SND_JACK_HEADSET);
 619                         }
 620                 }
 621         }
 622         mutex_unlock(&es8326->lock);
 623 }
 624
 625 static irqreturn_t es8326_irq(int irq, void *dev_id)
 626 {
 627         struct es8326_priv *es8326 = dev_id;
 628         struct snd_soc_component *comp = es8326->component;
 629
 630         if (!es8326->jack)
 631                 goto out;
 632
 633         es8326_enable_micbias(comp);
 634
 635         if (es8326->jack->status & SND_JACK_HEADSET)
 636                 queue_delayed_work(system_wq, &es8326->jack_detect_work,
 637                                    msecs_to_jiffies(10));
 638         else
 639                 queue_delayed_work(system_wq, &es8326->jack_detect_work,
 640                                    msecs_to_jiffies(300));
 641
 642 out:
 643         return IRQ_HANDLED;
 644 }
 645
 646 static int es8326_resume(struct snd_soc_component *component)
 647 {
 648         struct es8326_priv *es8326 = snd_soc_component_get_drvdata(component);
 649         unsigned int reg;
 650
 651         regcache_cache_only(es8326->regmap, false);
 652         regcache_sync(es8326->regmap);
 653
 654         regmap_write(es8326->regmap, ES8326_CLK_CTL, ES8326_CLK_ON);
 655         /* Two channel ADC */
 656         regmap_write(es8326->regmap, ES8326_PULLUP_CTL, 0x02);
 657         regmap_write(es8326->regmap, ES8326_CLK_INV, 0x00);
 658         regmap_write(es8326->regmap, ES8326_CLK_DIV_CPC, 0x1F);
 659         regmap_write(es8326->regmap, ES8326_CLK_VMIDS1, 0xC8);
 660         regmap_write(es8326->regmap, ES8326_CLK_VMIDS2, 0x88);
 661         regmap_write(es8326->regmap, ES8326_CLK_CAL_TIME, 0x20);
 662         regmap_write(es8326->regmap, ES8326_SYS_BIAS, 0x08);
 663         regmap_write(es8326->regmap, ES8326_DAC2HPMIX, 0x22);
 664         regmap_write(es8326->regmap, ES8326_ADC1_SRC, es8326->mic1_src);
 665         regmap_write(es8326->regmap, ES8326_ADC2_SRC, es8326->mic2_src);
 666         regmap_write(es8326->regmap, ES8326_HPJACK_TIMER, 0x88);
 667         regmap_write(es8326->regmap, ES8326_HP_DET,
 668                      ES8326_HP_DET_SRC_PIN9 | es8326->jack_pol);
 669         regmap_write(es8326->regmap, ES8326_INT_SOURCE, es8326->interrupt_src);
 670         regmap_write(es8326->regmap, ES8326_INTOUT_IO, es8326->interrupt_clk);
 671         regmap_write(es8326->regmap, ES8326_RESET, ES8326_CSM_ON);
 672         snd_soc_component_update_bits(component, ES8326_PGAGAIN,
 673                                       ES8326_MIC_SEL_MASK, ES8326_MIC1_SEL);
 674
 675         regmap_read(es8326->regmap, ES8326_CHIP_VERSION, &reg);
 676         if ((reg & ES8326_VERSION_B) == 1) {
 677                 regmap_write(es8326->regmap, ES8326_ANA_MICBIAS, 0xDD);
 678                 regmap_write(es8326->regmap, ES8326_ANA_VSEL, 0x7F);
 679                 regmap_write(es8326->regmap, ES8326_VMIDLOW, 0x0F);
 680                 /* enable button detect */
 681                 regmap_write(es8326->regmap, ES8326_HP_DRIVER, 0xA0);
 682         }
 683
 684         es8326_irq(es8326->irq, es8326);
 685         return 0;
 686 }
 687
 688 static int es8326_suspend(struct snd_soc_component *component)
 689 {
 690         struct es8326_priv *es8326 = snd_soc_component_get_drvdata(component);
 691
 692         cancel_delayed_work_sync(&es8326->jack_detect_work);
 693         es8326_disable_micbias(component);
 694
 695         regmap_write(es8326->regmap, ES8326_CLK_CTL, ES8326_CLK_OFF);
 696         regcache_cache_only(es8326->regmap, true);
 697         regcache_mark_dirty(es8326->regmap);
 698
 699         return 0;
 700 }
 701
 702 static int es8326_probe(struct snd_soc_component *component)
 703 {
 704         struct es8326_priv *es8326 = snd_soc_component_get_drvdata(component);
 705         int ret;
 706
 707         es8326->component = component;
 708         es8326->jd_inverted = device_property_read_bool(component->dev,
 709                                                         "everest,jack-detect-inverted");
 710
 711         ret = device_property_read_u8(component->dev, "everest,mic1-src", &es8326->mic1_src);
 712         if (ret != 0) {
 713                 dev_dbg(component->dev, "mic1-src return %d", ret);
 714                 es8326->mic1_src = ES8326_ADC_AMIC;
 715         }
 716         dev_dbg(component->dev, "mic1-src %x", es8326->mic1_src);
 717
 718         ret = device_property_read_u8(component->dev, "everest,mic2-src", &es8326->mic2_src);
 719         if (ret != 0) {
 720                 dev_dbg(component->dev, "mic2-src return %d", ret);
 721                 es8326->mic2_src = ES8326_ADC_DMIC;
 722         }
 723         dev_dbg(component->dev, "mic2-src %x", es8326->mic2_src);
 724
 725         ret = device_property_read_u8(component->dev, "everest,jack-pol", &es8326->jack_pol);
 726         if (ret != 0) {
 727                 dev_dbg(component->dev, "jack-pol return %d", ret);
 728                 es8326->jack_pol = ES8326_HP_DET_BUTTON_POL | ES8326_HP_TYPE_OMTP;
 729         }
 730         dev_dbg(component->dev, "jack-pol %x", es8326->jack_pol);
 731
 732         ret = device_property_read_u8(component->dev, "everest,interrupt-src", &es8326->jack_pol);
 733         if (ret != 0) {
 734                 dev_dbg(component->dev, "interrupt-src return %d", ret);
 735                 es8326->interrupt_src = ES8326_HP_DET_SRC_PIN9;
 736         }
 737         dev_dbg(component->dev, "interrupt-src %x", es8326->interrupt_src);
 738
 739         ret = device_property_read_u8(component->dev, "everest,interrupt-clk", &es8326->jack_pol);
 740         if (ret != 0) {
 741                 dev_dbg(component->dev, "interrupt-clk return %d", ret);
 742                 es8326->interrupt_clk = 0x45;
 743         }
 744         dev_dbg(component->dev, "interrupt-clk %x", es8326->interrupt_clk);
 745
 746         es8326_resume(component);
 747         return 0;
 748 }
 749
 750 static void es8326_enable_jack_detect(struct snd_soc_component *component,
 751                                 struct snd_soc_jack *jack)
 752 {
 753         struct es8326_priv *es8326 = snd_soc_component_get_drvdata(component);
 754
 755         mutex_lock(&es8326->lock);
 756         if (es8326->jd_inverted)
 757                 snd_soc_component_update_bits(component, ES8326_HP_DET,
 758                                               ES8326_HP_DET_JACK_POL, ~es8326->jack_pol);
 759         es8326->jack = jack;
 760
 761         mutex_unlock(&es8326->lock);
 762         es8326_irq(es8326->irq, es8326);
 763 }
 764
 765 static void es8326_disable_jack_detect(struct snd_soc_component *component)
 766 {
 767         struct es8326_priv *es8326 = snd_soc_component_get_drvdata(component);
 768
 769         dev_dbg(component->dev, "Enter into %s\n", __func__);
 770         if (!es8326->jack)
 771                 return; /* Already disabled (or never enabled) */
 772         cancel_delayed_work_sync(&es8326->jack_detect_work);
 773
 774         mutex_lock(&es8326->lock);
 775         if (es8326->jack->status & SND_JACK_MICROPHONE) {
 776                 es8326_disable_micbias(component);
 777                 snd_soc_jack_report(es8326->jack, 0, SND_JACK_HEADSET);
 778         }
 779         es8326->jack = NULL;
 780         mutex_unlock(&es8326->lock);
 781 }
 782
 783 static int es8326_set_jack(struct snd_soc_component *component,
 784                         struct snd_soc_jack *jack, void *data)
 785 {
 786         if (jack)
 787                 es8326_enable_jack_detect(component, jack);
 788         else
 789                 es8326_disable_jack_detect(component);
 790
 791         return 0;
 792 }
 793
 794 static void es8326_remove(struct snd_soc_component *component)
 795 {
 796         es8326_disable_jack_detect(component);
 797         es8326_set_bias_level(component, SND_SOC_BIAS_OFF);
 798 }
 799
 800 static const struct snd_soc_component_driver soc_component_dev_es8326 = {
 801         .probe          = es8326_probe,
 802         .remove         = es8326_remove,
 803         .resume         = es8326_resume,
 804         .suspend        = es8326_suspend,
 805         .set_bias_level = es8326_set_bias_level,
 806         .set_jack       = es8326_set_jack,
 807         .dapm_widgets   = es8326_dapm_widgets,
 808         .num_dapm_widgets       = ARRAY_SIZE(es8326_dapm_widgets),
 809         .dapm_routes            = es8326_dapm_routes,
 810         .num_dapm_routes        = ARRAY_SIZE(es8326_dapm_routes),
 811         .controls               = es8326_snd_controls,
 812         .num_controls           = ARRAY_SIZE(es8326_snd_controls),
 813         .use_pmdown_time        = 1,
 814         .endianness             = 1,
 815 };
 816
 817 static int es8326_i2c_probe(struct i2c_client *i2c)
 818 {
 819         struct es8326_priv *es8326;
 820         int ret;
 821
 822         es8326 = devm_kzalloc(&i2c->dev, sizeof(struct es8326_priv), GFP_KERNEL);
 823         if (!es8326)
 824                 return -ENOMEM;
 825
 826         i2c_set_clientdata(i2c, es8326);
 827         es8326->i2c = i2c;
 828         mutex_init(&es8326->lock);
 829         es8326->regmap = devm_regmap_init_i2c(i2c, &es8326_regmap_config);
 830         if (IS_ERR(es8326->regmap)) {
 831                 ret = PTR_ERR(es8326->regmap);
 832                 dev_err(&i2c->dev, "Failed to init regmap: %d\n", ret);
 833                 return ret;
 834         }
 835
 836         es8326->irq = i2c->irq;
 837         INIT_DELAYED_WORK(&es8326->jack_detect_work,
 838                           es8326_jack_detect_handler);
 839         INIT_DELAYED_WORK(&es8326->button_press_work,
 840                           es8326_jack_button_handler);
 841         /* ES8316 is level-based while ES8326 is edge-based */
 842         ret = devm_request_threaded_irq(&i2c->dev, es8326->irq, NULL, es8326_irq,
 843                                         IRQF_TRIGGER_RISING | IRQF_ONESHOT,
 844                                         "es8326", es8326);
 845         if (ret) {
 846                 dev_warn(&i2c->dev, "Failed to request IRQ: %d: %d\n",
 847                 es8326->irq, ret);
 848                 es8326->irq = -ENXIO;
 849         }
 850
 851         es8326->mclk = devm_clk_get_optional(&i2c->dev, "mclk");
 852         if (IS_ERR(es8326->mclk)) {
 853                 dev_err(&i2c->dev, "unable to get mclk\n");
 854                 return PTR_ERR(es8326->mclk);
 855         }
 856         if (!es8326->mclk)
 857                 dev_warn(&i2c->dev, "assuming static mclk\n");
 858
 859         ret = clk_prepare_enable(es8326->mclk);
 860         if (ret) {
 861                 dev_err(&i2c->dev, "unable to enable mclk\n");
 862                 return ret;
 863         }
 864         return devm_snd_soc_register_component(&i2c->dev,
 865                                         &soc_component_dev_es8326,
 866                                         &es8326_dai, 1);
 867 }
 868
 869 static const struct i2c_device_id es8326_i2c_id[] = {
 870         {"es8326", 0 },
 871         {}
 872 };
 873 MODULE_DEVICE_TABLE(i2c, es8326_i2c_id);
 874
 875 #ifdef CONFIG_OF
 876 static const struct of_device_id es8326_of_match[] = {
 877         { .compatible = "everest,es8326", },
 878         {}
 879 };
 880 MODULE_DEVICE_TABLE(of, es8326_of_match);
 881 #endif
 882
 883 #ifdef CONFIG_ACPI
 884 static const struct acpi_device_id es8326_acpi_match[] = {
 885         {"ESSX8326", 0},
 886         {},
 887 };
 888 MODULE_DEVICE_TABLE(acpi, es8326_acpi_match);
 889 #endif
 890
 891 static struct i2c_driver es8326_i2c_driver = {
 892         .driver = {
 893                 .name = "es8326",
 894                 .acpi_match_table = ACPI_PTR(es8326_acpi_match),
 895                 .of_match_table = of_match_ptr(es8326_of_match),
 896         },
 897         .probe_new = es8326_i2c_probe,
 898         .id_table = es8326_i2c_id,
 899 };
 900 module_i2c_driver(es8326_i2c_driver);
 901
 902 MODULE_DESCRIPTION("ASoC es8326 driver");
 903 MODULE_AUTHOR("David Yang <yangxiaohua@everest-semi.com>");
 904 MODULE_LICENSE("GPL");