sound/soc/codecs/tas2562.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 //
   3 // Driver for the Texas Instruments TAS2562 CODEC
   4 // Copyright (C) 2019 Texas Instruments Inc.
   5
   6
   7 #include <linux/module.h>
   8 #include <linux/errno.h>
   9 #include <linux/device.h>
  10 #include <linux/i2c.h>
  11 #include <linux/regmap.h>
  12 #include <linux/slab.h>
  13 #include <linux/gpio/consumer.h>
  14 #include <linux/regulator/consumer.h>
  15 #include <linux/delay.h>
  16
  17 #include <sound/pcm.h>
  18 #include <sound/pcm_params.h>
  19 #include <sound/soc.h>
  20 #include <sound/soc-dapm.h>
  21 #include <sound/tlv.h>
  22
  23 #include "tas2562.h"
  24
  25 #define TAS2562_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE |\
  26                          SNDRV_PCM_FORMAT_S32_LE)
  27
  28 /* DVC equation involves floating point math
  29  * round(10^(volume in dB/20)*2^30)
  30  * so create a lookup table for 2dB step
  31  */
  32 static const unsigned int float_vol_db_lookup[] = {
  33 0x00000d43, 0x000010b2, 0x00001505, 0x00001a67, 0x00002151,
  34 0x000029f1, 0x000034cd, 0x00004279, 0x000053af, 0x0000695b,
  35 0x0000695b, 0x0000a6fa, 0x0000d236, 0x000108a4, 0x00014d2a,
  36 0x0001a36e, 0x00021008, 0x000298c0, 0x000344df, 0x00041d8f,
  37 0x00052e5a, 0x000685c8, 0x00083621, 0x000a566d, 0x000d03a7,
  38 0x0010624d, 0x0014a050, 0x0019f786, 0x0020b0bc, 0x0029279d,
  39 0x0033cf8d, 0x004139d3, 0x00521d50, 0x00676044, 0x0082248a,
  40 0x00a3d70a, 0x00ce4328, 0x0103ab3d, 0x0146e75d, 0x019b8c27,
  41 0x02061b89, 0x028c423f, 0x03352529, 0x0409c2b0, 0x05156d68,
  42 0x080e9f96, 0x0a24b062, 0x0cc509ab, 0x10137987, 0x143d1362,
  43 0x197a967f, 0x2013739e, 0x28619ae9, 0x32d64617, 0x40000000
  44 };
  45
  46 struct tas2562_data {
  47         struct snd_soc_component *component;
  48         struct gpio_desc *sdz_gpio;
  49         struct regmap *regmap;
  50         struct device *dev;
  51         struct i2c_client *client;
  52         int v_sense_slot;
  53         int i_sense_slot;
  54         int volume_lvl;
  55         int model_id;
  56         bool dac_powered;
  57         bool unmuted;
  58 };
  59
  60 enum tas256x_model {
  61         TAS2562,
  62         TAS2563,
  63         TAS2564,
  64         TAS2110,
  65 };
  66
  67 static int tas2562_set_samplerate(struct tas2562_data *tas2562, int samplerate)
  68 {
  69         int samp_rate;
  70         int ramp_rate;
  71
  72         switch (samplerate) {
  73         case 7350:
  74                 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
  75                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_7305_8KHZ;
  76                 break;
  77         case 8000:
  78                 ramp_rate = 0;
  79                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_7305_8KHZ;
  80                 break;
  81         case 14700:
  82                 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
  83                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_14_7_16KHZ;
  84                 break;
  85         case 16000:
  86                 ramp_rate = 0;
  87                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_14_7_16KHZ;
  88                 break;
  89         case 22050:
  90                 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
  91                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_22_05_24KHZ;
  92                 break;
  93         case 24000:
  94                 ramp_rate = 0;
  95                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_22_05_24KHZ;
  96                 break;
  97         case 29400:
  98                 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
  99                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_29_4_32KHZ;
 100                 break;
 101         case 32000:
 102                 ramp_rate = 0;
 103                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_29_4_32KHZ;
 104                 break;
 105         case 44100:
 106                 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
 107                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_44_1_48KHZ;
 108                 break;
 109         case 48000:
 110                 ramp_rate = 0;
 111                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_44_1_48KHZ;
 112                 break;
 113         case 88200:
 114                 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
 115                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_88_2_96KHZ;
 116                 break;
 117         case 96000:
 118                 ramp_rate = 0;
 119                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_88_2_96KHZ;
 120                 break;
 121         case 176400:
 122                 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
 123                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_176_4_192KHZ;
 124                 break;
 125         case 192000:
 126                 ramp_rate = 0;
 127                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_176_4_192KHZ;
 128                 break;
 129         default:
 130                 dev_info(tas2562->dev, "%s, unsupported sample rate, %d\n",
 131                         __func__, samplerate);
 132                 return -EINVAL;
 133         }
 134
 135         snd_soc_component_update_bits(tas2562->component, TAS2562_TDM_CFG0,
 136                 TAS2562_TDM_CFG0_RAMPRATE_MASK, ramp_rate);
 137         snd_soc_component_update_bits(tas2562->component, TAS2562_TDM_CFG0,
 138                 TAS2562_TDM_CFG0_SAMPRATE_MASK, samp_rate);
 139
 140         return 0;
 141 }
 142
 143 static int tas2562_set_dai_tdm_slot(struct snd_soc_dai *dai,
 144                 unsigned int tx_mask, unsigned int rx_mask,
 145                 int slots, int slot_width)
 146 {
 147         struct snd_soc_component *component = dai->component;
 148         struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
 149         int left_slot, right_slot;
 150         int slots_cfg;
 151         int ret;
 152
 153         if (!tx_mask) {
 154                 dev_err(component->dev, "tx masks must not be 0\n");
 155                 return -EINVAL;
 156         }
 157
 158         if (slots == 1) {
 159                 if (tx_mask != 1)
 160                         return -EINVAL;
 161
 162                 left_slot = 0;
 163                 right_slot = 0;
 164         } else {
 165                 left_slot = __ffs(tx_mask);
 166                 tx_mask &= ~(1 << left_slot);
 167                 if (tx_mask == 0) {
 168                         right_slot = left_slot;
 169                 } else {
 170                         right_slot = __ffs(tx_mask);
 171                 }
 172         }
 173
 174         slots_cfg = (right_slot << TAS2562_RIGHT_SLOT_SHIFT) | left_slot;
 175
 176         ret = snd_soc_component_write(component, TAS2562_TDM_CFG3, slots_cfg);
 177         if (ret < 0)
 178                 return ret;
 179
 180         switch (slot_width) {
 181         case 16:
 182                 ret = snd_soc_component_update_bits(component,
 183                                                     TAS2562_TDM_CFG2,
 184                                                     TAS2562_TDM_CFG2_RXLEN_MASK,
 185                                                     TAS2562_TDM_CFG2_RXLEN_16B);
 186                 break;
 187         case 24:
 188                 ret = snd_soc_component_update_bits(component,
 189                                                     TAS2562_TDM_CFG2,
 190                                                     TAS2562_TDM_CFG2_RXLEN_MASK,
 191                                                     TAS2562_TDM_CFG2_RXLEN_24B);
 192                 break;
 193         case 32:
 194                 ret = snd_soc_component_update_bits(component,
 195                                                     TAS2562_TDM_CFG2,
 196                                                     TAS2562_TDM_CFG2_RXLEN_MASK,
 197                                                     TAS2562_TDM_CFG2_RXLEN_32B);
 198                 break;
 199
 200         case 0:
 201                 /* Do not change slot width */
 202                 break;
 203         default:
 204                 dev_err(tas2562->dev, "slot width not supported");
 205                 ret = -EINVAL;
 206         }
 207
 208         if (ret < 0)
 209                 return ret;
 210
 211         ret = snd_soc_component_update_bits(component, TAS2562_TDM_CFG5,
 212                                             TAS2562_TDM_CFG5_VSNS_SLOT_MASK,
 213                                             tas2562->v_sense_slot);
 214         if (ret < 0)
 215                 return ret;
 216
 217         ret = snd_soc_component_update_bits(component, TAS2562_TDM_CFG6,
 218                                             TAS2562_TDM_CFG6_ISNS_SLOT_MASK,
 219                                             tas2562->i_sense_slot);
 220         if (ret < 0)
 221                 return ret;
 222
 223         return 0;
 224 }
 225
 226 static int tas2562_set_bitwidth(struct tas2562_data *tas2562, int bitwidth)
 227 {
 228         int ret;
 229         int val;
 230         int sense_en;
 231
 232         switch (bitwidth) {
 233         case SNDRV_PCM_FORMAT_S16_LE:
 234                 snd_soc_component_update_bits(tas2562->component,
 235                                               TAS2562_TDM_CFG2,
 236                                               TAS2562_TDM_CFG2_RXWLEN_MASK,
 237                                               TAS2562_TDM_CFG2_RXWLEN_16B);
 238                 break;
 239         case SNDRV_PCM_FORMAT_S24_LE:
 240                 snd_soc_component_update_bits(tas2562->component,
 241                                               TAS2562_TDM_CFG2,
 242                                               TAS2562_TDM_CFG2_RXWLEN_MASK,
 243                                               TAS2562_TDM_CFG2_RXWLEN_24B);
 244                 break;
 245         case SNDRV_PCM_FORMAT_S32_LE:
 246                 snd_soc_component_update_bits(tas2562->component,
 247                                               TAS2562_TDM_CFG2,
 248                                               TAS2562_TDM_CFG2_RXWLEN_MASK,
 249                                               TAS2562_TDM_CFG2_RXWLEN_32B);
 250                 break;
 251
 252         default:
 253                 dev_info(tas2562->dev, "Unsupported bitwidth format\n");
 254                 return -EINVAL;
 255         }
 256
 257         val = snd_soc_component_read(tas2562->component, TAS2562_PWR_CTRL);
 258         if (val < 0)
 259                 return val;
 260
 261         if (val & (1 << TAS2562_VSENSE_POWER_EN))
 262                 sense_en = 0;
 263         else
 264                 sense_en = TAS2562_TDM_CFG5_VSNS_EN;
 265
 266         ret = snd_soc_component_update_bits(tas2562->component, TAS2562_TDM_CFG5,
 267                 TAS2562_TDM_CFG5_VSNS_EN, sense_en);
 268         if (ret < 0)
 269                 return ret;
 270
 271         if (val & (1 << TAS2562_ISENSE_POWER_EN))
 272                 sense_en = 0;
 273         else
 274                 sense_en = TAS2562_TDM_CFG6_ISNS_EN;
 275
 276         ret = snd_soc_component_update_bits(tas2562->component, TAS2562_TDM_CFG6,
 277                 TAS2562_TDM_CFG6_ISNS_EN, sense_en);
 278         if (ret < 0)
 279                 return ret;
 280
 281         return 0;
 282 }
 283
 284 static int tas2562_hw_params(struct snd_pcm_substream *substream,
 285                              struct snd_pcm_hw_params *params,
 286                              struct snd_soc_dai *dai)
 287 {
 288         struct snd_soc_component *component = dai->component;
 289         struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
 290         int ret;
 291
 292         ret = tas2562_set_bitwidth(tas2562, params_format(params));
 293         if (ret) {
 294                 dev_err(tas2562->dev, "set bitwidth failed, %d\n", ret);
 295                 return ret;
 296         }
 297
 298         ret = tas2562_set_samplerate(tas2562, params_rate(params));
 299         if (ret)
 300                 dev_err(tas2562->dev, "set sample rate failed, %d\n", ret);
 301
 302         return ret;
 303 }
 304
 305 static int tas2562_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt)
 306 {
 307         struct snd_soc_component *component = dai->component;
 308         struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
 309         u8 asi_cfg_1 = 0;
 310         u8 tdm_rx_start_slot = 0;
 311         int ret;
 312
 313         switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
 314         case SND_SOC_DAIFMT_NB_NF:
 315                 asi_cfg_1 = 0;
 316                 break;
 317         case SND_SOC_DAIFMT_IB_NF:
 318                 asi_cfg_1 |= TAS2562_TDM_CFG1_RX_FALLING;
 319                 break;
 320         default:
 321                 dev_err(tas2562->dev, "ASI format Inverse is not found\n");
 322                 return -EINVAL;
 323         }
 324
 325         ret = snd_soc_component_update_bits(component, TAS2562_TDM_CFG1,
 326                                             TAS2562_TDM_CFG1_RX_EDGE_MASK,
 327                                             asi_cfg_1);
 328         if (ret < 0) {
 329                 dev_err(tas2562->dev, "Failed to set RX edge\n");
 330                 return ret;
 331         }
 332         switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
 333         case SND_SOC_DAIFMT_LEFT_J:
 334         case SND_SOC_DAIFMT_DSP_B:
 335                 tdm_rx_start_slot = 0;
 336                 break;
 337         case SND_SOC_DAIFMT_I2S:
 338         case SND_SOC_DAIFMT_DSP_A:
 339                 tdm_rx_start_slot = 1;
 340                 break;
 341         default:
 342                 dev_err(tas2562->dev,
 343                         "DAI Format is not found, fmt=0x%x\n", fmt);
 344                 return -EINVAL;
 345         }
 346
 347         ret = snd_soc_component_update_bits(component, TAS2562_TDM_CFG1,
 348                                 TAS2562_RX_OFF_MASK, (tdm_rx_start_slot << 1));
 349         if (ret < 0)
 350                 return ret;
 351
 352         return 0;
 353 }
 354
 355 static int tas2562_update_pwr_ctrl(struct tas2562_data *tas2562)
 356 {
 357         struct snd_soc_component *component = tas2562->component;
 358         unsigned int val;
 359         int ret;
 360
 361         if (tas2562->dac_powered)
 362                 val = tas2562->unmuted ?
 363                         TAS2562_ACTIVE : TAS2562_MUTE;
 364         else
 365                 val = TAS2562_SHUTDOWN;
 366
 367         ret = snd_soc_component_update_bits(component, TAS2562_PWR_CTRL,
 368                                             TAS2562_MODE_MASK, val);
 369         if (ret < 0)
 370                 return ret;
 371
 372         return 0;
 373 }
 374
 375 static int tas2562_mute(struct snd_soc_dai *dai, int mute, int direction)
 376 {
 377         struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(dai->component);
 378
 379         tas2562->unmuted = !mute;
 380         return tas2562_update_pwr_ctrl(tas2562);
 381 }
 382
 383 static int tas2562_codec_probe(struct snd_soc_component *component)
 384 {
 385         struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
 386
 387         tas2562->component = component;
 388
 389         if (tas2562->sdz_gpio)
 390                 gpiod_set_value_cansleep(tas2562->sdz_gpio, 1);
 391
 392         return 0;
 393 }
 394
 395 #ifdef CONFIG_PM
 396 static int tas2562_suspend(struct snd_soc_component *component)
 397 {
 398         struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
 399
 400         regcache_cache_only(tas2562->regmap, true);
 401         regcache_mark_dirty(tas2562->regmap);
 402
 403         if (tas2562->sdz_gpio)
 404                 gpiod_set_value_cansleep(tas2562->sdz_gpio, 0);
 405
 406         return 0;
 407 }
 408
 409 static int tas2562_resume(struct snd_soc_component *component)
 410 {
 411         struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
 412
 413         if (tas2562->sdz_gpio)
 414                 gpiod_set_value_cansleep(tas2562->sdz_gpio, 1);
 415
 416         regcache_cache_only(tas2562->regmap, false);
 417
 418         return regcache_sync(tas2562->regmap);
 419 }
 420 #else
 421 #define tas2562_suspend NULL
 422 #define tas2562_resume NULL
 423 #endif
 424
 425 static const char * const tas2562_ASI1_src[] = {
 426         "I2C offset", "Left", "Right", "LeftRightDiv2",
 427 };
 428
 429 static SOC_ENUM_SINGLE_DECL(tas2562_ASI1_src_enum, TAS2562_TDM_CFG2, 4,
 430                             tas2562_ASI1_src);
 431
 432 static const struct snd_kcontrol_new tas2562_asi1_mux =
 433         SOC_DAPM_ENUM("ASI1 Source", tas2562_ASI1_src_enum);
 434
 435 static int tas2562_dac_event(struct snd_soc_dapm_widget *w,
 436                              struct snd_kcontrol *kcontrol, int event)
 437 {
 438         struct snd_soc_component *component =
 439                                         snd_soc_dapm_to_component(w->dapm);
 440         struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
 441         int ret = 0;
 442
 443         switch (event) {
 444         case SND_SOC_DAPM_POST_PMU:
 445                 tas2562->dac_powered = true;
 446                 ret = tas2562_update_pwr_ctrl(tas2562);
 447                 break;
 448         case SND_SOC_DAPM_PRE_PMD:
 449                 tas2562->dac_powered = false;
 450                 ret = tas2562_update_pwr_ctrl(tas2562);
 451                 break;
 452         default:
 453                 dev_err(tas2562->dev, "Not supported evevt\n");
 454                 return -EINVAL;
 455         }
 456
 457         return ret;
 458 }
 459
 460 static int tas2562_volume_control_get(struct snd_kcontrol *kcontrol,
 461                                       struct snd_ctl_elem_value *ucontrol)
 462 {
 463         struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
 464         struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
 465
 466         ucontrol->value.integer.value[0] = tas2562->volume_lvl;
 467         return 0;
 468 }
 469
 470 static int tas2562_volume_control_put(struct snd_kcontrol *kcontrol,
 471                                       struct snd_ctl_elem_value *ucontrol)
 472 {
 473         struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
 474         struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
 475         int ret;
 476         u32 reg_val;
 477
 478         reg_val = float_vol_db_lookup[ucontrol->value.integer.value[0]/2];
 479         ret = snd_soc_component_write(component, TAS2562_DVC_CFG4,
 480                                       (reg_val & 0xff));
 481         if (ret)
 482                 return ret;
 483         ret = snd_soc_component_write(component, TAS2562_DVC_CFG3,
 484                                       ((reg_val >> 8) & 0xff));
 485         if (ret)
 486                 return ret;
 487         ret = snd_soc_component_write(component, TAS2562_DVC_CFG2,
 488                                       ((reg_val >> 16) & 0xff));
 489         if (ret)
 490                 return ret;
 491         ret = snd_soc_component_write(component, TAS2562_DVC_CFG1,
 492                                       ((reg_val >> 24) & 0xff));
 493         if (ret)
 494                 return ret;
 495
 496         tas2562->volume_lvl = ucontrol->value.integer.value[0];
 497
 498         return 0;
 499 }
 500
 501 /* Digital Volume Control. From 0 dB to -110 dB in 1 dB steps */
 502 static const DECLARE_TLV_DB_SCALE(dvc_tlv, -11000, 100, 0);
 503
 504 static DECLARE_TLV_DB_SCALE(tas2562_dac_tlv, 850, 50, 0);
 505
 506 static const struct snd_kcontrol_new isense_switch =
 507         SOC_DAPM_SINGLE("Switch", TAS2562_PWR_CTRL, TAS2562_ISENSE_POWER_EN,
 508                         1, 1);
 509
 510 static const struct snd_kcontrol_new vsense_switch =
 511         SOC_DAPM_SINGLE("Switch", TAS2562_PWR_CTRL, TAS2562_VSENSE_POWER_EN,
 512                         1, 1);
 513
 514 static const struct snd_kcontrol_new tas2562_snd_controls[] = {
 515         SOC_SINGLE_TLV("Amp Gain Volume", TAS2562_PB_CFG1, 1, 0x1c, 0,
 516                        tas2562_dac_tlv),
 517         {
 518                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 519                 .name = "Digital Volume Control",
 520                 .index = 0,
 521                 .tlv.p = dvc_tlv,
 522                 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | SNDRV_CTL_ELEM_ACCESS_READWRITE,
 523                 .info = snd_soc_info_volsw,
 524                 .get = tas2562_volume_control_get,
 525                 .put = tas2562_volume_control_put,
 526                 .private_value = SOC_SINGLE_VALUE(TAS2562_DVC_CFG1, 0, 110, 0, 0),
 527         },
 528 };
 529
 530 static const struct snd_soc_dapm_widget tas2110_dapm_widgets[] = {
 531         SND_SOC_DAPM_AIF_IN("ASI1", "ASI1 Playback", 0, SND_SOC_NOPM, 0, 0),
 532         SND_SOC_DAPM_MUX("ASI1 Sel", SND_SOC_NOPM, 0, 0, &tas2562_asi1_mux),
 533         SND_SOC_DAPM_DAC_E("DAC", NULL, SND_SOC_NOPM, 0, 0, tas2562_dac_event,
 534                            SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
 535         SND_SOC_DAPM_OUTPUT("OUT"),
 536 };
 537
 538 static const struct snd_soc_dapm_route tas2110_audio_map[] = {
 539         {"ASI1 Sel", "I2C offset", "ASI1"},
 540         {"ASI1 Sel", "Left", "ASI1"},
 541         {"ASI1 Sel", "Right", "ASI1"},
 542         {"ASI1 Sel", "LeftRightDiv2", "ASI1"},
 543         { "DAC", NULL, "ASI1 Sel" },
 544         { "OUT", NULL, "DAC" },
 545 };
 546
 547 static const struct snd_soc_component_driver soc_component_dev_tas2110 = {
 548         .probe                  = tas2562_codec_probe,
 549         .suspend                = tas2562_suspend,
 550         .resume                 = tas2562_resume,
 551         .controls               = tas2562_snd_controls,
 552         .num_controls           = ARRAY_SIZE(tas2562_snd_controls),
 553         .dapm_widgets           = tas2110_dapm_widgets,
 554         .num_dapm_widgets       = ARRAY_SIZE(tas2110_dapm_widgets),
 555         .dapm_routes            = tas2110_audio_map,
 556         .num_dapm_routes        = ARRAY_SIZE(tas2110_audio_map),
 557         .idle_bias_on           = 1,
 558         .use_pmdown_time        = 1,
 559         .endianness             = 1,
 560 };
 561
 562 static const struct snd_soc_dapm_widget tas2562_dapm_widgets[] = {
 563         SND_SOC_DAPM_AIF_IN("ASI1", "ASI1 Playback", 0, SND_SOC_NOPM, 0, 0),
 564         SND_SOC_DAPM_MUX("ASI1 Sel", SND_SOC_NOPM, 0, 0, &tas2562_asi1_mux),
 565         SND_SOC_DAPM_DAC_E("DAC", NULL, SND_SOC_NOPM, 0, 0, tas2562_dac_event,
 566                            SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
 567         SND_SOC_DAPM_SWITCH("ISENSE", TAS2562_PWR_CTRL, 3, 1, &isense_switch),
 568         SND_SOC_DAPM_SWITCH("VSENSE", TAS2562_PWR_CTRL, 2, 1, &vsense_switch),
 569         SND_SOC_DAPM_SIGGEN("VMON"),
 570         SND_SOC_DAPM_SIGGEN("IMON"),
 571         SND_SOC_DAPM_OUTPUT("OUT"),
 572 };
 573
 574 static const struct snd_soc_dapm_route tas2562_audio_map[] = {
 575         {"ASI1 Sel", "I2C offset", "ASI1"},
 576         {"ASI1 Sel", "Left", "ASI1"},
 577         {"ASI1 Sel", "Right", "ASI1"},
 578         {"ASI1 Sel", "LeftRightDiv2", "ASI1"},
 579         { "DAC", NULL, "ASI1 Sel" },
 580         { "OUT", NULL, "DAC" },
 581         {"ISENSE", "Switch", "IMON"},
 582         {"VSENSE", "Switch", "VMON"},
 583 };
 584
 585 static const struct snd_soc_component_driver soc_component_dev_tas2562 = {
 586         .probe                  = tas2562_codec_probe,
 587         .suspend                = tas2562_suspend,
 588         .resume                 = tas2562_resume,
 589         .controls               = tas2562_snd_controls,
 590         .num_controls           = ARRAY_SIZE(tas2562_snd_controls),
 591         .dapm_widgets           = tas2562_dapm_widgets,
 592         .num_dapm_widgets       = ARRAY_SIZE(tas2562_dapm_widgets),
 593         .dapm_routes            = tas2562_audio_map,
 594         .num_dapm_routes        = ARRAY_SIZE(tas2562_audio_map),
 595         .idle_bias_on           = 1,
 596         .use_pmdown_time        = 1,
 597         .endianness             = 1,
 598 };
 599
 600 static const struct snd_soc_dai_ops tas2562_speaker_dai_ops = {
 601         .hw_params      = tas2562_hw_params,
 602         .set_fmt        = tas2562_set_dai_fmt,
 603         .set_tdm_slot   = tas2562_set_dai_tdm_slot,
 604         .mute_stream    = tas2562_mute,
 605         .no_capture_mute = 1,
 606 };
 607
 608 static struct snd_soc_dai_driver tas2562_dai[] = {
 609         {
 610                 .name = "tas2562-amplifier",
 611                 .id = 0,
 612                 .playback = {
 613                         .stream_name    = "ASI1 Playback",
 614                         .channels_min   = 2,
 615                         .channels_max   = 2,
 616                         .rates      = SNDRV_PCM_RATE_8000_192000,
 617                         .formats    = TAS2562_FORMATS,
 618                 },
 619                 .capture = {
 620                         .stream_name    = "ASI1 Capture",
 621                         .channels_min   = 0,
 622                         .channels_max   = 2,
 623                         .rates          = SNDRV_PCM_RATE_8000_192000,
 624                         .formats        = TAS2562_FORMATS,
 625                 },
 626                 .ops = &tas2562_speaker_dai_ops,
 627         },
 628 };
 629
 630 static const struct regmap_range_cfg tas2562_ranges[] = {
 631         {
 632                 .range_min = 0,
 633                 .range_max = 5 * 128,
 634                 .selector_reg = TAS2562_PAGE_CTRL,
 635                 .selector_mask = 0xff,
 636                 .selector_shift = 0,
 637                 .window_start = 0,
 638                 .window_len = 128,
 639         },
 640 };
 641
 642 static const struct reg_default tas2562_reg_defaults[] = {
 643         { TAS2562_PAGE_CTRL, 0x00 },
 644         { TAS2562_SW_RESET, 0x00 },
 645         { TAS2562_PWR_CTRL, 0x0e },
 646         { TAS2562_PB_CFG1, 0x20 },
 647         { TAS2562_TDM_CFG0, 0x09 },
 648         { TAS2562_TDM_CFG1, 0x02 },
 649         { TAS2562_DVC_CFG1, 0x40 },
 650         { TAS2562_DVC_CFG2, 0x40 },
 651         { TAS2562_DVC_CFG3, 0x00 },
 652         { TAS2562_DVC_CFG4, 0x00 },
 653 };
 654
 655 static const struct regmap_config tas2562_regmap_config = {
 656         .reg_bits = 8,
 657         .val_bits = 8,
 658
 659         .max_register = 5 * 128,
 660         .cache_type = REGCACHE_RBTREE,
 661         .reg_defaults = tas2562_reg_defaults,
 662         .num_reg_defaults = ARRAY_SIZE(tas2562_reg_defaults),
 663         .ranges = tas2562_ranges,
 664         .num_ranges = ARRAY_SIZE(tas2562_ranges),
 665 };
 666
 667 static int tas2562_parse_dt(struct tas2562_data *tas2562)
 668 {
 669         struct device *dev = tas2562->dev;
 670         int ret = 0;
 671
 672         tas2562->sdz_gpio = devm_gpiod_get_optional(dev, "shutdown", GPIOD_OUT_HIGH);
 673         if (IS_ERR(tas2562->sdz_gpio)) {
 674                 if (PTR_ERR(tas2562->sdz_gpio) == -EPROBE_DEFER)
 675                         return -EPROBE_DEFER;
 676
 677                 tas2562->sdz_gpio = NULL;
 678         }
 679
 680         /*
 681          * The shut-down property is deprecated but needs to be checked for
 682          * backwards compatibility.
 683          */
 684         if (tas2562->sdz_gpio == NULL) {
 685                 tas2562->sdz_gpio = devm_gpiod_get_optional(dev, "shut-down",
 686                                                               GPIOD_OUT_HIGH);
 687                 if (IS_ERR(tas2562->sdz_gpio))
 688                         if (PTR_ERR(tas2562->sdz_gpio) == -EPROBE_DEFER)
 689                                 return -EPROBE_DEFER;
 690
 691                 tas2562->sdz_gpio = NULL;
 692         }
 693
 694         if (tas2562->model_id == TAS2110)
 695                 return ret;
 696
 697         ret = fwnode_property_read_u32(dev->fwnode, "ti,imon-slot-no",
 698                         &tas2562->i_sense_slot);
 699         if (ret) {
 700                 dev_err(dev, "Property %s is missing setting default slot\n",
 701                         "ti,imon-slot-no");
 702                 tas2562->i_sense_slot = 0;
 703         }
 704
 705
 706         ret = fwnode_property_read_u32(dev->fwnode, "ti,vmon-slot-no",
 707                         &tas2562->v_sense_slot);
 708         if (ret) {
 709                 dev_info(dev, "Property %s is missing setting default slot\n",
 710                         "ti,vmon-slot-no");
 711                 tas2562->v_sense_slot = 2;
 712         }
 713
 714         if (tas2562->v_sense_slot < tas2562->i_sense_slot) {
 715                 dev_err(dev, "Vsense slot must be greater than Isense slot\n");
 716                 return -EINVAL;
 717         }
 718
 719         return ret;
 720 }
 721
 722 static const struct i2c_device_id tas2562_id[] = {
 723         { "tas2562", TAS2562 },
 724         { "tas2563", TAS2563 },
 725         { "tas2564", TAS2564 },
 726         { "tas2110", TAS2110 },
 727         { }
 728 };
 729 MODULE_DEVICE_TABLE(i2c, tas2562_id);
 730
 731 static int tas2562_probe(struct i2c_client *client)
 732 {
 733         struct device *dev = &client->dev;
 734         struct tas2562_data *data;
 735         int ret;
 736         const struct i2c_device_id *id;
 737
 738         data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
 739         if (!data)
 740                 return -ENOMEM;
 741
 742         id = i2c_match_id(tas2562_id, client);
 743         data->client = client;
 744         data->dev = &client->dev;
 745         data->model_id = id->driver_data;
 746
 747         tas2562_parse_dt(data);
 748
 749         data->regmap = devm_regmap_init_i2c(client, &tas2562_regmap_config);
 750         if (IS_ERR(data->regmap)) {
 751                 ret = PTR_ERR(data->regmap);
 752                 dev_err(dev, "failed to allocate register map: %d\n", ret);
 753                 return ret;
 754         }
 755
 756         dev_set_drvdata(&client->dev, data);
 757
 758         if (data->model_id == TAS2110)
 759                 return devm_snd_soc_register_component(dev,
 760                                                        &soc_component_dev_tas2110,
 761                                                        tas2562_dai,
 762                                                        ARRAY_SIZE(tas2562_dai));
 763
 764         return devm_snd_soc_register_component(dev, &soc_component_dev_tas2562,
 765                                                tas2562_dai,
 766                                                ARRAY_SIZE(tas2562_dai));
 767
 768 }
 769
 770 #ifdef CONFIG_OF
 771 static const struct of_device_id tas2562_of_match[] = {
 772         { .compatible = "ti,tas2562", },
 773         { .compatible = "ti,tas2563", },
 774         { .compatible = "ti,tas2564", },
 775         { .compatible = "ti,tas2110", },
 776         { },
 777 };
 778 MODULE_DEVICE_TABLE(of, tas2562_of_match);
 779 #endif
 780
 781 static struct i2c_driver tas2562_i2c_driver = {
 782         .driver = {
 783                 .name = "tas2562",
 784                 .of_match_table = of_match_ptr(tas2562_of_match),
 785         },
 786         .probe = tas2562_probe,
 787         .id_table = tas2562_id,
 788 };
 789
 790 module_i2c_driver(tas2562_i2c_driver);
 791
 792 MODULE_AUTHOR("Dan Murphy <dmurphy@ti.com>");
 793 MODULE_DESCRIPTION("TAS2562 Audio amplifier driver");
 794 MODULE_LICENSE("GPL");