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/pm_runtime.h>
  12 #include <linux/regmap.h>
  13 #include <linux/slab.h>
  14 #include <linux/gpio/consumer.h>
  15 #include <linux/regulator/consumer.h>
  16 #include <linux/delay.h>
  17
  18 #include <sound/pcm.h>
  19 #include <sound/pcm_params.h>
  20 #include <sound/soc.h>
  21 #include <sound/soc-dapm.h>
  22 #include <sound/tlv.h>
  23
  24 #include "tas2562.h"
  25
  26 #define TAS2562_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE |\
  27                          SNDRV_PCM_FORMAT_S32_LE)
  28
  29 /* DVC equation involves floating point math
  30  * round(10^(volume in dB/20)*2^30)
  31  * so create a lookup table for 2dB step
  32  */
  33 static const unsigned int float_vol_db_lookup[] = {
  34 0x00000d43, 0x000010b2, 0x00001505, 0x00001a67, 0x00002151,
  35 0x000029f1, 0x000034cd, 0x00004279, 0x000053af, 0x0000695b,
  36 0x0000695b, 0x0000a6fa, 0x0000d236, 0x000108a4, 0x00014d2a,
  37 0x0001a36e, 0x00021008, 0x000298c0, 0x000344df, 0x00041d8f,
  38 0x00052e5a, 0x000685c8, 0x00083621, 0x000a566d, 0x000d03a7,
  39 0x0010624d, 0x0014a050, 0x0019f786, 0x0020b0bc, 0x0029279d,
  40 0x0033cf8d, 0x004139d3, 0x00521d50, 0x00676044, 0x0082248a,
  41 0x00a3d70a, 0x00ce4328, 0x0103ab3d, 0x0146e75d, 0x019b8c27,
  42 0x02061b89, 0x028c423f, 0x03352529, 0x0409c2b0, 0x05156d68,
  43 0x080e9f96, 0x0a24b062, 0x0cc509ab, 0x10137987, 0x143d1362,
  44 0x197a967f, 0x2013739e, 0x28619ae9, 0x32d64617, 0x40000000
  45 };
  46
  47 struct tas2562_data {
  48         struct snd_soc_component *component;
  49         struct gpio_desc *sdz_gpio;
  50         struct regmap *regmap;
  51         struct device *dev;
  52         struct i2c_client *client;
  53         int v_sense_slot;
  54         int i_sense_slot;
  55         int volume_lvl;
  56 };
  57
  58 enum tas256x_model {
  59         TAS2562,
  60         TAS2563,
  61 };
  62
  63 static int tas2562_set_bias_level(struct snd_soc_component *component,
  64                                  enum snd_soc_bias_level level)
  65 {
  66         struct tas2562_data *tas2562 =
  67                         snd_soc_component_get_drvdata(component);
  68
  69         switch (level) {
  70         case SND_SOC_BIAS_ON:
  71                 snd_soc_component_update_bits(component,
  72                         TAS2562_PWR_CTRL,
  73                         TAS2562_MODE_MASK, TAS2562_ACTIVE);
  74                 break;
  75         case SND_SOC_BIAS_STANDBY:
  76         case SND_SOC_BIAS_PREPARE:
  77                 snd_soc_component_update_bits(component,
  78                         TAS2562_PWR_CTRL,
  79                         TAS2562_MODE_MASK, TAS2562_MUTE);
  80                 break;
  81         case SND_SOC_BIAS_OFF:
  82                 snd_soc_component_update_bits(component,
  83                         TAS2562_PWR_CTRL,
  84                         TAS2562_MODE_MASK, TAS2562_SHUTDOWN);
  85                 break;
  86
  87         default:
  88                 dev_err(tas2562->dev,
  89                                 "wrong power level setting %d\n", level);
  90                 return -EINVAL;
  91         }
  92
  93         return 0;
  94 }
  95
  96 static int tas2562_set_samplerate(struct tas2562_data *tas2562, int samplerate)
  97 {
  98         int samp_rate;
  99         int ramp_rate;
 100
 101         switch (samplerate) {
 102         case 7350:
 103                 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
 104                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_7305_8KHZ;
 105                 break;
 106         case 8000:
 107                 ramp_rate = 0;
 108                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_7305_8KHZ;
 109                 break;
 110         case 14700:
 111                 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
 112                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_14_7_16KHZ;
 113                 break;
 114         case 16000:
 115                 ramp_rate = 0;
 116                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_14_7_16KHZ;
 117                 break;
 118         case 22050:
 119                 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
 120                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_22_05_24KHZ;
 121                 break;
 122         case 24000:
 123                 ramp_rate = 0;
 124                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_22_05_24KHZ;
 125                 break;
 126         case 29400:
 127                 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
 128                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_29_4_32KHZ;
 129                 break;
 130         case 32000:
 131                 ramp_rate = 0;
 132                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_29_4_32KHZ;
 133                 break;
 134         case 44100:
 135                 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
 136                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_44_1_48KHZ;
 137                 break;
 138         case 48000:
 139                 ramp_rate = 0;
 140                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_44_1_48KHZ;
 141                 break;
 142         case 88200:
 143                 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
 144                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_88_2_96KHZ;
 145                 break;
 146         case 96000:
 147                 ramp_rate = 0;
 148                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_88_2_96KHZ;
 149                 break;
 150         case 176400:
 151                 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
 152                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_176_4_192KHZ;
 153                 break;
 154         case 192000:
 155                 ramp_rate = 0;
 156                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_176_4_192KHZ;
 157                 break;
 158         default:
 159                 dev_info(tas2562->dev, "%s, unsupported sample rate, %d\n",
 160                         __func__, samplerate);
 161                 return -EINVAL;
 162         }
 163
 164         snd_soc_component_update_bits(tas2562->component, TAS2562_TDM_CFG0,
 165                 TAS2562_TDM_CFG0_RAMPRATE_MASK, ramp_rate);
 166         snd_soc_component_update_bits(tas2562->component, TAS2562_TDM_CFG0,
 167                 TAS2562_TDM_CFG0_SAMPRATE_MASK, samp_rate);
 168
 169         return 0;
 170 }
 171
 172 static int tas2562_set_dai_tdm_slot(struct snd_soc_dai *dai,
 173                 unsigned int tx_mask, unsigned int rx_mask,
 174                 int slots, int slot_width)
 175 {
 176         struct snd_soc_component *component = dai->component;
 177         struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
 178         int left_slot, right_slot;
 179         int slots_cfg;
 180         int ret;
 181
 182         if (!tx_mask) {
 183                 dev_err(component->dev, "tx masks must not be 0\n");
 184                 return -EINVAL;
 185         }
 186
 187         if (slots == 1) {
 188                 if (tx_mask != 1)
 189                         return -EINVAL;
 190
 191                 left_slot = 0;
 192                 right_slot = 0;
 193         } else {
 194                 left_slot = __ffs(tx_mask);
 195                 tx_mask &= ~(1 << left_slot);
 196                 if (tx_mask == 0) {
 197                         right_slot = left_slot;
 198                 } else {
 199                         right_slot = __ffs(tx_mask);
 200                         tx_mask &= ~(1 << right_slot);
 201                 }
 202         }
 203
 204         slots_cfg = (right_slot << TAS2562_RIGHT_SLOT_SHIFT) | left_slot;
 205
 206         ret = snd_soc_component_write(component, TAS2562_TDM_CFG3, slots_cfg);
 207         if (ret < 0)
 208                 return ret;
 209
 210         switch (slot_width) {
 211         case 16:
 212                 ret = snd_soc_component_update_bits(component,
 213                                                     TAS2562_TDM_CFG2,
 214                                                     TAS2562_TDM_CFG2_RXLEN_MASK,
 215                                                     TAS2562_TDM_CFG2_RXLEN_16B);
 216                 break;
 217         case 24:
 218                 ret = snd_soc_component_update_bits(component,
 219                                                     TAS2562_TDM_CFG2,
 220                                                     TAS2562_TDM_CFG2_RXLEN_MASK,
 221                                                     TAS2562_TDM_CFG2_RXLEN_24B);
 222                 break;
 223         case 32:
 224                 ret = snd_soc_component_update_bits(component,
 225                                                     TAS2562_TDM_CFG2,
 226                                                     TAS2562_TDM_CFG2_RXLEN_MASK,
 227                                                     TAS2562_TDM_CFG2_RXLEN_32B);
 228                 break;
 229
 230         case 0:
 231                 /* Do not change slot width */
 232                 break;
 233         default:
 234                 dev_err(tas2562->dev, "slot width not supported");
 235                 ret = -EINVAL;
 236         }
 237
 238         if (ret < 0)
 239                 return ret;
 240
 241         ret = snd_soc_component_update_bits(component, TAS2562_TDM_CFG5,
 242                                             TAS2562_TDM_CFG5_VSNS_SLOT_MASK,
 243                                             tas2562->v_sense_slot);
 244         if (ret < 0)
 245                 return ret;
 246
 247         ret = snd_soc_component_update_bits(component, TAS2562_TDM_CFG6,
 248                                             TAS2562_TDM_CFG6_ISNS_SLOT_MASK,
 249                                             tas2562->i_sense_slot);
 250         if (ret < 0)
 251                 return ret;
 252
 253         ret = snd_soc_component_update_bits(component, TAS2562_TDM_CFG5,
 254                                             TAS2562_TDM_CFG5_VSNS_SLOT_MASK,
 255                                             tas2562->v_sense_slot);
 256         if (ret < 0)
 257                 return ret;
 258
 259         ret = snd_soc_component_update_bits(component, TAS2562_TDM_CFG6,
 260                                             TAS2562_TDM_CFG6_ISNS_SLOT_MASK,
 261                                             tas2562->i_sense_slot);
 262         if (ret < 0)
 263                 return ret;
 264
 265         return 0;
 266 }
 267
 268 static int tas2562_set_bitwidth(struct tas2562_data *tas2562, int bitwidth)
 269 {
 270         int ret;
 271         int val;
 272         int sense_en;
 273
 274         switch (bitwidth) {
 275         case SNDRV_PCM_FORMAT_S16_LE:
 276                 snd_soc_component_update_bits(tas2562->component,
 277                                               TAS2562_TDM_CFG2,
 278                                               TAS2562_TDM_CFG2_RXWLEN_MASK,
 279                                               TAS2562_TDM_CFG2_RXWLEN_16B);
 280                 break;
 281         case SNDRV_PCM_FORMAT_S24_LE:
 282                 snd_soc_component_update_bits(tas2562->component,
 283                                               TAS2562_TDM_CFG2,
 284                                               TAS2562_TDM_CFG2_RXWLEN_MASK,
 285                                               TAS2562_TDM_CFG2_RXWLEN_24B);
 286                 break;
 287         case SNDRV_PCM_FORMAT_S32_LE:
 288                 snd_soc_component_update_bits(tas2562->component,
 289                                               TAS2562_TDM_CFG2,
 290                                               TAS2562_TDM_CFG2_RXWLEN_MASK,
 291                                               TAS2562_TDM_CFG2_RXWLEN_32B);
 292                 break;
 293
 294         default:
 295                 dev_info(tas2562->dev, "Unsupported bitwidth format\n");
 296                 return -EINVAL;
 297         }
 298
 299         val = snd_soc_component_read(tas2562->component, TAS2562_PWR_CTRL);
 300         if (val < 0)
 301                 return val;
 302
 303         if (val & (1 << TAS2562_VSENSE_POWER_EN))
 304                 sense_en = 0;
 305         else
 306                 sense_en = TAS2562_TDM_CFG5_VSNS_EN;
 307
 308         ret = snd_soc_component_update_bits(tas2562->component, TAS2562_TDM_CFG5,
 309                 TAS2562_TDM_CFG5_VSNS_EN, sense_en);
 310         if (ret < 0)
 311                 return ret;
 312
 313         if (val & (1 << TAS2562_ISENSE_POWER_EN))
 314                 sense_en = 0;
 315         else
 316                 sense_en = TAS2562_TDM_CFG6_ISNS_EN;
 317
 318         ret = snd_soc_component_update_bits(tas2562->component, TAS2562_TDM_CFG6,
 319                 TAS2562_TDM_CFG6_ISNS_EN, sense_en);
 320         if (ret < 0)
 321                 return ret;
 322
 323         return 0;
 324 }
 325
 326 static int tas2562_hw_params(struct snd_pcm_substream *substream,
 327                              struct snd_pcm_hw_params *params,
 328                              struct snd_soc_dai *dai)
 329 {
 330         struct snd_soc_component *component = dai->component;
 331         struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
 332         int ret;
 333
 334         ret = tas2562_set_bitwidth(tas2562, params_format(params));
 335         if (ret) {
 336                 dev_err(tas2562->dev, "set bitwidth failed, %d\n", ret);
 337                 return ret;
 338         }
 339
 340         ret = tas2562_set_samplerate(tas2562, params_rate(params));
 341         if (ret)
 342                 dev_err(tas2562->dev, "set sample rate failed, %d\n", ret);
 343
 344         return ret;
 345 }
 346
 347 static int tas2562_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt)
 348 {
 349         struct snd_soc_component *component = dai->component;
 350         struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
 351         u8 asi_cfg_1 = 0;
 352         u8 tdm_rx_start_slot = 0;
 353         int ret;
 354
 355         switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
 356         case SND_SOC_DAIFMT_NB_NF:
 357                 asi_cfg_1 = 0;
 358                 break;
 359         case SND_SOC_DAIFMT_IB_NF:
 360                 asi_cfg_1 |= TAS2562_TDM_CFG1_RX_FALLING;
 361                 break;
 362         default:
 363                 dev_err(tas2562->dev, "ASI format Inverse is not found\n");
 364                 return -EINVAL;
 365         }
 366
 367         ret = snd_soc_component_update_bits(component, TAS2562_TDM_CFG1,
 368                                             TAS2562_TDM_CFG1_RX_EDGE_MASK,
 369                                             asi_cfg_1);
 370         if (ret < 0) {
 371                 dev_err(tas2562->dev, "Failed to set RX edge\n");
 372                 return ret;
 373         }
 374         switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
 375         case SND_SOC_DAIFMT_LEFT_J:
 376         case SND_SOC_DAIFMT_DSP_B:
 377                 tdm_rx_start_slot = 0;
 378                 break;
 379         case SND_SOC_DAIFMT_I2S:
 380         case SND_SOC_DAIFMT_DSP_A:
 381                 tdm_rx_start_slot = 1;
 382                 break;
 383         default:
 384                 dev_err(tas2562->dev,
 385                         "DAI Format is not found, fmt=0x%x\n", fmt);
 386                 return -EINVAL;
 387         }
 388
 389         ret = snd_soc_component_update_bits(component, TAS2562_TDM_CFG1,
 390                                 TAS2562_RX_OFF_MASK, (tdm_rx_start_slot << 1));
 391         if (ret < 0)
 392                 return ret;
 393
 394         return 0;
 395 }
 396
 397 static int tas2562_mute(struct snd_soc_dai *dai, int mute, int direction)
 398 {
 399         struct snd_soc_component *component = dai->component;
 400
 401         return snd_soc_component_update_bits(component, TAS2562_PWR_CTRL,
 402                                              TAS2562_MODE_MASK,
 403                                              mute ? TAS2562_MUTE : 0);
 404 }
 405
 406 static int tas2562_codec_probe(struct snd_soc_component *component)
 407 {
 408         struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
 409         int ret;
 410
 411         tas2562->component = component;
 412
 413         if (tas2562->sdz_gpio)
 414                 gpiod_set_value_cansleep(tas2562->sdz_gpio, 1);
 415
 416         ret = snd_soc_component_update_bits(component, TAS2562_PWR_CTRL,
 417                                             TAS2562_MODE_MASK, TAS2562_MUTE);
 418         if (ret < 0)
 419                 return ret;
 420
 421         return 0;
 422 }
 423
 424 #ifdef CONFIG_PM
 425 static int tas2562_suspend(struct snd_soc_component *component)
 426 {
 427         struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
 428
 429         regcache_cache_only(tas2562->regmap, true);
 430         regcache_mark_dirty(tas2562->regmap);
 431
 432         if (tas2562->sdz_gpio)
 433                 gpiod_set_value_cansleep(tas2562->sdz_gpio, 0);
 434
 435         return 0;
 436 }
 437
 438 static int tas2562_resume(struct snd_soc_component *component)
 439 {
 440         struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
 441
 442         if (tas2562->sdz_gpio)
 443                 gpiod_set_value_cansleep(tas2562->sdz_gpio, 1);
 444
 445         regcache_cache_only(tas2562->regmap, false);
 446
 447         return regcache_sync(tas2562->regmap);
 448 }
 449 #else
 450 #define tas2562_suspend NULL
 451 #define tas2562_resume NULL
 452 #endif
 453
 454 static const char * const tas2562_ASI1_src[] = {
 455         "I2C offset", "Left", "Right", "LeftRightDiv2",
 456 };
 457
 458 static SOC_ENUM_SINGLE_DECL(tas2562_ASI1_src_enum, TAS2562_TDM_CFG2, 4,
 459                             tas2562_ASI1_src);
 460
 461 static const struct snd_kcontrol_new tas2562_asi1_mux =
 462         SOC_DAPM_ENUM("ASI1 Source", tas2562_ASI1_src_enum);
 463
 464 static int tas2562_dac_event(struct snd_soc_dapm_widget *w,
 465                              struct snd_kcontrol *kcontrol, int event)
 466 {
 467         struct snd_soc_component *component =
 468                                         snd_soc_dapm_to_component(w->dapm);
 469         struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
 470         int ret;
 471
 472         switch (event) {
 473         case SND_SOC_DAPM_POST_PMU:
 474                 ret = snd_soc_component_update_bits(component,
 475                         TAS2562_PWR_CTRL,
 476                         TAS2562_MODE_MASK,
 477                         TAS2562_MUTE);
 478                 if (ret)
 479                         goto end;
 480                 break;
 481         case SND_SOC_DAPM_PRE_PMD:
 482                 ret = snd_soc_component_update_bits(component,
 483                         TAS2562_PWR_CTRL,
 484                         TAS2562_MODE_MASK,
 485                         TAS2562_SHUTDOWN);
 486                 if (ret)
 487                         goto end;
 488                 break;
 489         default:
 490                 dev_err(tas2562->dev, "Not supported evevt\n");
 491                 return -EINVAL;
 492         }
 493
 494 end:
 495         if (ret < 0)
 496                 return ret;
 497
 498         return 0;
 499 }
 500
 501 static int tas2562_volume_control_get(struct snd_kcontrol *kcontrol,
 502                                       struct snd_ctl_elem_value *ucontrol)
 503 {
 504         struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
 505         struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
 506
 507         ucontrol->value.integer.value[0] = tas2562->volume_lvl;
 508         return 0;
 509 }
 510
 511 static int tas2562_volume_control_put(struct snd_kcontrol *kcontrol,
 512                                       struct snd_ctl_elem_value *ucontrol)
 513 {
 514         struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
 515         struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
 516         int ret;
 517         u32 reg_val;
 518
 519         reg_val = float_vol_db_lookup[ucontrol->value.integer.value[0]/2];
 520         ret = snd_soc_component_write(component, TAS2562_DVC_CFG4,
 521                                       (reg_val & 0xff));
 522         if (ret)
 523                 return ret;
 524         ret = snd_soc_component_write(component, TAS2562_DVC_CFG3,
 525                                       ((reg_val >> 8) & 0xff));
 526         if (ret)
 527                 return ret;
 528         ret = snd_soc_component_write(component, TAS2562_DVC_CFG2,
 529                                       ((reg_val >> 16) & 0xff));
 530         if (ret)
 531                 return ret;
 532         ret = snd_soc_component_write(component, TAS2562_DVC_CFG1,
 533                                       ((reg_val >> 24) & 0xff));
 534         if (ret)
 535                 return ret;
 536
 537         tas2562->volume_lvl = ucontrol->value.integer.value[0];
 538
 539         return ret;
 540 }
 541
 542 /* Digital Volume Control. From 0 dB to -110 dB in 1 dB steps */
 543 static const DECLARE_TLV_DB_SCALE(dvc_tlv, -11000, 100, 0);
 544
 545 static DECLARE_TLV_DB_SCALE(tas2562_dac_tlv, 850, 50, 0);
 546
 547 static const struct snd_kcontrol_new isense_switch =
 548         SOC_DAPM_SINGLE("Switch", TAS2562_PWR_CTRL, TAS2562_ISENSE_POWER_EN,
 549                         1, 1);
 550
 551 static const struct snd_kcontrol_new vsense_switch =
 552         SOC_DAPM_SINGLE("Switch", TAS2562_PWR_CTRL, TAS2562_VSENSE_POWER_EN,
 553                         1, 1);
 554
 555 static const struct snd_kcontrol_new tas2562_snd_controls[] = {
 556         SOC_SINGLE_TLV("Amp Gain Volume", TAS2562_PB_CFG1, 1, 0x1c, 0,
 557                        tas2562_dac_tlv),
 558         {
 559                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 560                 .name = "Digital Volume Control",
 561                 .index = 0,
 562                 .tlv.p = dvc_tlv,
 563                 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | SNDRV_CTL_ELEM_ACCESS_READWRITE,
 564                 .info = snd_soc_info_volsw,
 565                 .get = tas2562_volume_control_get,
 566                 .put = tas2562_volume_control_put,
 567                 .private_value = SOC_SINGLE_VALUE(TAS2562_DVC_CFG1, 0, 110, 0, 0),
 568         },
 569 };
 570
 571 static const struct snd_soc_dapm_widget tas2562_dapm_widgets[] = {
 572         SND_SOC_DAPM_AIF_IN("ASI1", "ASI1 Playback", 0, SND_SOC_NOPM, 0, 0),
 573         SND_SOC_DAPM_MUX("ASI1 Sel", SND_SOC_NOPM, 0, 0, &tas2562_asi1_mux),
 574         SND_SOC_DAPM_DAC_E("DAC", NULL, SND_SOC_NOPM, 0, 0, tas2562_dac_event,
 575                            SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
 576         SND_SOC_DAPM_SWITCH("ISENSE", TAS2562_PWR_CTRL, 3, 1, &isense_switch),
 577         SND_SOC_DAPM_SWITCH("VSENSE", TAS2562_PWR_CTRL, 2, 1, &vsense_switch),
 578         SND_SOC_DAPM_SIGGEN("VMON"),
 579         SND_SOC_DAPM_SIGGEN("IMON"),
 580         SND_SOC_DAPM_OUTPUT("OUT"),
 581 };
 582
 583 static const struct snd_soc_dapm_route tas2562_audio_map[] = {
 584         {"ASI1 Sel", "I2C offset", "ASI1"},
 585         {"ASI1 Sel", "Left", "ASI1"},
 586         {"ASI1 Sel", "Right", "ASI1"},
 587         {"ASI1 Sel", "LeftRightDiv2", "ASI1"},
 588         { "DAC", NULL, "ASI1 Sel" },
 589         { "OUT", NULL, "DAC" },
 590         {"ISENSE", "Switch", "IMON"},
 591         {"VSENSE", "Switch", "VMON"},
 592 };
 593
 594 static const struct snd_soc_component_driver soc_component_dev_tas2562 = {
 595         .probe                  = tas2562_codec_probe,
 596         .suspend                = tas2562_suspend,
 597         .resume                 = tas2562_resume,
 598         .set_bias_level         = tas2562_set_bias_level,
 599         .controls               = tas2562_snd_controls,
 600         .num_controls           = ARRAY_SIZE(tas2562_snd_controls),
 601         .dapm_widgets           = tas2562_dapm_widgets,
 602         .num_dapm_widgets       = ARRAY_SIZE(tas2562_dapm_widgets),
 603         .dapm_routes            = tas2562_audio_map,
 604         .num_dapm_routes        = ARRAY_SIZE(tas2562_audio_map),
 605         .idle_bias_on           = 1,
 606         .use_pmdown_time        = 1,
 607         .endianness             = 1,
 608         .non_legacy_dai_naming  = 1,
 609 };
 610
 611 static const struct snd_soc_dai_ops tas2562_speaker_dai_ops = {
 612         .hw_params      = tas2562_hw_params,
 613         .set_fmt        = tas2562_set_dai_fmt,
 614         .set_tdm_slot   = tas2562_set_dai_tdm_slot,
 615         .mute_stream    = tas2562_mute,
 616         .no_capture_mute = 1,
 617 };
 618
 619 static struct snd_soc_dai_driver tas2562_dai[] = {
 620         {
 621                 .name = "tas2562-amplifier",
 622                 .id = 0,
 623                 .playback = {
 624                         .stream_name    = "ASI1 Playback",
 625                         .channels_min   = 2,
 626                         .channels_max   = 2,
 627                         .rates      = SNDRV_PCM_RATE_8000_192000,
 628                         .formats    = TAS2562_FORMATS,
 629                 },
 630                 .capture = {
 631                         .stream_name    = "ASI1 Capture",
 632                         .channels_min   = 0,
 633                         .channels_max   = 2,
 634                         .rates          = SNDRV_PCM_RATE_8000_192000,
 635                         .formats        = TAS2562_FORMATS,
 636                 },
 637                 .ops = &tas2562_speaker_dai_ops,
 638         },
 639 };
 640
 641 static const struct regmap_range_cfg tas2562_ranges[] = {
 642         {
 643                 .range_min = 0,
 644                 .range_max = 5 * 128,
 645                 .selector_reg = TAS2562_PAGE_CTRL,
 646                 .selector_mask = 0xff,
 647                 .selector_shift = 0,
 648                 .window_start = 0,
 649                 .window_len = 128,
 650         },
 651 };
 652
 653 static const struct reg_default tas2562_reg_defaults[] = {
 654         { TAS2562_PAGE_CTRL, 0x00 },
 655         { TAS2562_SW_RESET, 0x00 },
 656         { TAS2562_PWR_CTRL, 0x0e },
 657         { TAS2562_PB_CFG1, 0x20 },
 658         { TAS2562_TDM_CFG0, 0x09 },
 659         { TAS2562_TDM_CFG1, 0x02 },
 660         { TAS2562_DVC_CFG1, 0x40 },
 661         { TAS2562_DVC_CFG2, 0x40 },
 662         { TAS2562_DVC_CFG3, 0x00 },
 663         { TAS2562_DVC_CFG4, 0x00 },
 664 };
 665
 666 static const struct regmap_config tas2562_regmap_config = {
 667         .reg_bits = 8,
 668         .val_bits = 8,
 669
 670         .max_register = 5 * 128,
 671         .cache_type = REGCACHE_RBTREE,
 672         .reg_defaults = tas2562_reg_defaults,
 673         .num_reg_defaults = ARRAY_SIZE(tas2562_reg_defaults),
 674         .ranges = tas2562_ranges,
 675         .num_ranges = ARRAY_SIZE(tas2562_ranges),
 676 };
 677
 678 static int tas2562_parse_dt(struct tas2562_data *tas2562)
 679 {
 680         struct device *dev = tas2562->dev;
 681         int ret = 0;
 682
 683         tas2562->sdz_gpio = devm_gpiod_get_optional(dev, "shutdown", GPIOD_OUT_HIGH);
 684         if (IS_ERR(tas2562->sdz_gpio)) {
 685                 if (PTR_ERR(tas2562->sdz_gpio) == -EPROBE_DEFER)
 686                         return -EPROBE_DEFER;
 687
 688                 tas2562->sdz_gpio = NULL;
 689         }
 690
 691         /*
 692          * The shut-down property is deprecated but needs to be checked for
 693          * backwards compatibility.
 694          */
 695         if (tas2562->sdz_gpio == NULL) {
 696                 tas2562->sdz_gpio = devm_gpiod_get_optional(dev, "shut-down",
 697                                                               GPIOD_OUT_HIGH);
 698                 if (IS_ERR(tas2562->sdz_gpio))
 699                         if (PTR_ERR(tas2562->sdz_gpio) == -EPROBE_DEFER)
 700                                 return -EPROBE_DEFER;
 701
 702                 tas2562->sdz_gpio = NULL;
 703         }
 704
 705         ret = fwnode_property_read_u32(dev->fwnode, "ti,imon-slot-no",
 706                         &tas2562->i_sense_slot);
 707         if (ret) {
 708                 dev_err(dev, "Property %s is missing setting default slot\n",
 709                         "ti,imon-slot-no");
 710                 tas2562->i_sense_slot = 0;
 711         }
 712
 713
 714         ret = fwnode_property_read_u32(dev->fwnode, "ti,vmon-slot-no",
 715                         &tas2562->v_sense_slot);
 716         if (ret) {
 717                 dev_info(dev, "Property %s is missing setting default slot\n",
 718                         "ti,vmon-slot-no");
 719                 tas2562->v_sense_slot = 2;
 720         }
 721
 722         if (tas2562->v_sense_slot < tas2562->i_sense_slot) {
 723                 dev_err(dev, "Vsense slot must be greater than Isense slot\n");
 724                 return -EINVAL;
 725         }
 726
 727         return ret;
 728 }
 729
 730 static int tas2562_probe(struct i2c_client *client,
 731                          const struct i2c_device_id *id)
 732 {
 733         struct device *dev = &client->dev;
 734         struct tas2562_data *data;
 735         int ret;
 736
 737         data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
 738         if (!data)
 739                 return -ENOMEM;
 740
 741         data->client = client;
 742         data->dev = &client->dev;
 743
 744         tas2562_parse_dt(data);
 745
 746         data->regmap = devm_regmap_init_i2c(client, &tas2562_regmap_config);
 747         if (IS_ERR(data->regmap)) {
 748                 ret = PTR_ERR(data->regmap);
 749                 dev_err(dev, "failed to allocate register map: %d\n", ret);
 750                 return ret;
 751         }
 752
 753         dev_set_drvdata(&client->dev, data);
 754
 755         return devm_snd_soc_register_component(dev, &soc_component_dev_tas2562,
 756                                                tas2562_dai,
 757                                                ARRAY_SIZE(tas2562_dai));
 758
 759 }
 760
 761 static const struct i2c_device_id tas2562_id[] = {
 762         { "tas2562", TAS2562 },
 763         { "tas2563", TAS2563 },
 764         { }
 765 };
 766 MODULE_DEVICE_TABLE(i2c, tas2562_id);
 767
 768 static const struct of_device_id tas2562_of_match[] = {
 769         { .compatible = "ti,tas2562", },
 770         { .compatible = "ti,tas2563", },
 771         { },
 772 };
 773 MODULE_DEVICE_TABLE(of, tas2562_of_match);
 774
 775 static struct i2c_driver tas2562_i2c_driver = {
 776         .driver = {
 777                 .name = "tas2562",
 778                 .of_match_table = of_match_ptr(tas2562_of_match),
 779         },
 780         .probe = tas2562_probe,
 781         .id_table = tas2562_id,
 782 };
 783
 784 module_i2c_driver(tas2562_i2c_driver);
 785
 786 MODULE_AUTHOR("Dan Murphy <dmurphy@ti.com>");
 787 MODULE_DESCRIPTION("TAS2562 Audio amplifier driver");
 788 MODULE_LICENSE("GPL");