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         int model_id;
  57 };
  58
  59 enum tas256x_model {
  60         TAS2562,
  61         TAS2563,
  62         TAS2564,
  63         TAS2110,
  64 };
  65
  66 static int tas2562_set_bias_level(struct snd_soc_component *component,
  67                                  enum snd_soc_bias_level level)
  68 {
  69         struct tas2562_data *tas2562 =
  70                         snd_soc_component_get_drvdata(component);
  71
  72         switch (level) {
  73         case SND_SOC_BIAS_ON:
  74                 snd_soc_component_update_bits(component,
  75                         TAS2562_PWR_CTRL,
  76                         TAS2562_MODE_MASK, TAS2562_ACTIVE);
  77                 break;
  78         case SND_SOC_BIAS_STANDBY:
  79         case SND_SOC_BIAS_PREPARE:
  80                 snd_soc_component_update_bits(component,
  81                         TAS2562_PWR_CTRL,
  82                         TAS2562_MODE_MASK, TAS2562_MUTE);
  83                 break;
  84         case SND_SOC_BIAS_OFF:
  85                 snd_soc_component_update_bits(component,
  86                         TAS2562_PWR_CTRL,
  87                         TAS2562_MODE_MASK, TAS2562_SHUTDOWN);
  88                 break;
  89
  90         default:
  91                 dev_err(tas2562->dev,
  92                                 "wrong power level setting %d\n", level);
  93                 return -EINVAL;
  94         }
  95
  96         return 0;
  97 }
  98
  99 static int tas2562_set_samplerate(struct tas2562_data *tas2562, int samplerate)
 100 {
 101         int samp_rate;
 102         int ramp_rate;
 103
 104         switch (samplerate) {
 105         case 7350:
 106                 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
 107                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_7305_8KHZ;
 108                 break;
 109         case 8000:
 110                 ramp_rate = 0;
 111                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_7305_8KHZ;
 112                 break;
 113         case 14700:
 114                 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
 115                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_14_7_16KHZ;
 116                 break;
 117         case 16000:
 118                 ramp_rate = 0;
 119                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_14_7_16KHZ;
 120                 break;
 121         case 22050:
 122                 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
 123                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_22_05_24KHZ;
 124                 break;
 125         case 24000:
 126                 ramp_rate = 0;
 127                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_22_05_24KHZ;
 128                 break;
 129         case 29400:
 130                 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
 131                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_29_4_32KHZ;
 132                 break;
 133         case 32000:
 134                 ramp_rate = 0;
 135                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_29_4_32KHZ;
 136                 break;
 137         case 44100:
 138                 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
 139                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_44_1_48KHZ;
 140                 break;
 141         case 48000:
 142                 ramp_rate = 0;
 143                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_44_1_48KHZ;
 144                 break;
 145         case 88200:
 146                 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
 147                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_88_2_96KHZ;
 148                 break;
 149         case 96000:
 150                 ramp_rate = 0;
 151                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_88_2_96KHZ;
 152                 break;
 153         case 176400:
 154                 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
 155                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_176_4_192KHZ;
 156                 break;
 157         case 192000:
 158                 ramp_rate = 0;
 159                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_176_4_192KHZ;
 160                 break;
 161         default:
 162                 dev_info(tas2562->dev, "%s, unsupported sample rate, %d\n",
 163                         __func__, samplerate);
 164                 return -EINVAL;
 165         }
 166
 167         snd_soc_component_update_bits(tas2562->component, TAS2562_TDM_CFG0,
 168                 TAS2562_TDM_CFG0_RAMPRATE_MASK, ramp_rate);
 169         snd_soc_component_update_bits(tas2562->component, TAS2562_TDM_CFG0,
 170                 TAS2562_TDM_CFG0_SAMPRATE_MASK, samp_rate);
 171
 172         return 0;
 173 }
 174
 175 static int tas2562_set_dai_tdm_slot(struct snd_soc_dai *dai,
 176                 unsigned int tx_mask, unsigned int rx_mask,
 177                 int slots, int slot_width)
 178 {
 179         struct snd_soc_component *component = dai->component;
 180         struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
 181         int left_slot, right_slot;
 182         int slots_cfg;
 183         int ret;
 184
 185         if (!tx_mask) {
 186                 dev_err(component->dev, "tx masks must not be 0\n");
 187                 return -EINVAL;
 188         }
 189
 190         if (slots == 1) {
 191                 if (tx_mask != 1)
 192                         return -EINVAL;
 193
 194                 left_slot = 0;
 195                 right_slot = 0;
 196         } else {
 197                 left_slot = __ffs(tx_mask);
 198                 tx_mask &= ~(1 << left_slot);
 199                 if (tx_mask == 0) {
 200                         right_slot = left_slot;
 201                 } else {
 202                         right_slot = __ffs(tx_mask);
 203                         tx_mask &= ~(1 << right_slot);
 204                 }
 205         }
 206
 207         slots_cfg = (right_slot << TAS2562_RIGHT_SLOT_SHIFT) | left_slot;
 208
 209         ret = snd_soc_component_write(component, TAS2562_TDM_CFG3, slots_cfg);
 210         if (ret < 0)
 211                 return ret;
 212
 213         switch (slot_width) {
 214         case 16:
 215                 ret = snd_soc_component_update_bits(component,
 216                                                     TAS2562_TDM_CFG2,
 217                                                     TAS2562_TDM_CFG2_RXLEN_MASK,
 218                                                     TAS2562_TDM_CFG2_RXLEN_16B);
 219                 break;
 220         case 24:
 221                 ret = snd_soc_component_update_bits(component,
 222                                                     TAS2562_TDM_CFG2,
 223                                                     TAS2562_TDM_CFG2_RXLEN_MASK,
 224                                                     TAS2562_TDM_CFG2_RXLEN_24B);
 225                 break;
 226         case 32:
 227                 ret = snd_soc_component_update_bits(component,
 228                                                     TAS2562_TDM_CFG2,
 229                                                     TAS2562_TDM_CFG2_RXLEN_MASK,
 230                                                     TAS2562_TDM_CFG2_RXLEN_32B);
 231                 break;
 232
 233         case 0:
 234                 /* Do not change slot width */
 235                 break;
 236         default:
 237                 dev_err(tas2562->dev, "slot width not supported");
 238                 ret = -EINVAL;
 239         }
 240
 241         if (ret < 0)
 242                 return ret;
 243
 244         ret = snd_soc_component_update_bits(component, TAS2562_TDM_CFG5,
 245                                             TAS2562_TDM_CFG5_VSNS_SLOT_MASK,
 246                                             tas2562->v_sense_slot);
 247         if (ret < 0)
 248                 return ret;
 249
 250         ret = snd_soc_component_update_bits(component, TAS2562_TDM_CFG6,
 251                                             TAS2562_TDM_CFG6_ISNS_SLOT_MASK,
 252                                             tas2562->i_sense_slot);
 253         if (ret < 0)
 254                 return ret;
 255
 256         return 0;
 257 }
 258
 259 static int tas2562_set_bitwidth(struct tas2562_data *tas2562, int bitwidth)
 260 {
 261         int ret;
 262         int val;
 263         int sense_en;
 264
 265         switch (bitwidth) {
 266         case SNDRV_PCM_FORMAT_S16_LE:
 267                 snd_soc_component_update_bits(tas2562->component,
 268                                               TAS2562_TDM_CFG2,
 269                                               TAS2562_TDM_CFG2_RXWLEN_MASK,
 270                                               TAS2562_TDM_CFG2_RXWLEN_16B);
 271                 break;
 272         case SNDRV_PCM_FORMAT_S24_LE:
 273                 snd_soc_component_update_bits(tas2562->component,
 274                                               TAS2562_TDM_CFG2,
 275                                               TAS2562_TDM_CFG2_RXWLEN_MASK,
 276                                               TAS2562_TDM_CFG2_RXWLEN_24B);
 277                 break;
 278         case SNDRV_PCM_FORMAT_S32_LE:
 279                 snd_soc_component_update_bits(tas2562->component,
 280                                               TAS2562_TDM_CFG2,
 281                                               TAS2562_TDM_CFG2_RXWLEN_MASK,
 282                                               TAS2562_TDM_CFG2_RXWLEN_32B);
 283                 break;
 284
 285         default:
 286                 dev_info(tas2562->dev, "Unsupported bitwidth format\n");
 287                 return -EINVAL;
 288         }
 289
 290         val = snd_soc_component_read(tas2562->component, TAS2562_PWR_CTRL);
 291         if (val < 0)
 292                 return val;
 293
 294         if (val & (1 << TAS2562_VSENSE_POWER_EN))
 295                 sense_en = 0;
 296         else
 297                 sense_en = TAS2562_TDM_CFG5_VSNS_EN;
 298
 299         ret = snd_soc_component_update_bits(tas2562->component, TAS2562_TDM_CFG5,
 300                 TAS2562_TDM_CFG5_VSNS_EN, sense_en);
 301         if (ret < 0)
 302                 return ret;
 303
 304         if (val & (1 << TAS2562_ISENSE_POWER_EN))
 305                 sense_en = 0;
 306         else
 307                 sense_en = TAS2562_TDM_CFG6_ISNS_EN;
 308
 309         ret = snd_soc_component_update_bits(tas2562->component, TAS2562_TDM_CFG6,
 310                 TAS2562_TDM_CFG6_ISNS_EN, sense_en);
 311         if (ret < 0)
 312                 return ret;
 313
 314         return 0;
 315 }
 316
 317 static int tas2562_hw_params(struct snd_pcm_substream *substream,
 318                              struct snd_pcm_hw_params *params,
 319                              struct snd_soc_dai *dai)
 320 {
 321         struct snd_soc_component *component = dai->component;
 322         struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
 323         int ret;
 324
 325         ret = tas2562_set_bitwidth(tas2562, params_format(params));
 326         if (ret) {
 327                 dev_err(tas2562->dev, "set bitwidth failed, %d\n", ret);
 328                 return ret;
 329         }
 330
 331         ret = tas2562_set_samplerate(tas2562, params_rate(params));
 332         if (ret)
 333                 dev_err(tas2562->dev, "set sample rate failed, %d\n", ret);
 334
 335         return ret;
 336 }
 337
 338 static int tas2562_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt)
 339 {
 340         struct snd_soc_component *component = dai->component;
 341         struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
 342         u8 asi_cfg_1 = 0;
 343         u8 tdm_rx_start_slot = 0;
 344         int ret;
 345
 346         switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
 347         case SND_SOC_DAIFMT_NB_NF:
 348                 asi_cfg_1 = 0;
 349                 break;
 350         case SND_SOC_DAIFMT_IB_NF:
 351                 asi_cfg_1 |= TAS2562_TDM_CFG1_RX_FALLING;
 352                 break;
 353         default:
 354                 dev_err(tas2562->dev, "ASI format Inverse is not found\n");
 355                 return -EINVAL;
 356         }
 357
 358         ret = snd_soc_component_update_bits(component, TAS2562_TDM_CFG1,
 359                                             TAS2562_TDM_CFG1_RX_EDGE_MASK,
 360                                             asi_cfg_1);
 361         if (ret < 0) {
 362                 dev_err(tas2562->dev, "Failed to set RX edge\n");
 363                 return ret;
 364         }
 365         switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
 366         case SND_SOC_DAIFMT_LEFT_J:
 367         case SND_SOC_DAIFMT_DSP_B:
 368                 tdm_rx_start_slot = 0;
 369                 break;
 370         case SND_SOC_DAIFMT_I2S:
 371         case SND_SOC_DAIFMT_DSP_A:
 372                 tdm_rx_start_slot = 1;
 373                 break;
 374         default:
 375                 dev_err(tas2562->dev,
 376                         "DAI Format is not found, fmt=0x%x\n", fmt);
 377                 return -EINVAL;
 378         }
 379
 380         ret = snd_soc_component_update_bits(component, TAS2562_TDM_CFG1,
 381                                 TAS2562_RX_OFF_MASK, (tdm_rx_start_slot << 1));
 382         if (ret < 0)
 383                 return ret;
 384
 385         return 0;
 386 }
 387
 388 static int tas2562_mute(struct snd_soc_dai *dai, int mute, int direction)
 389 {
 390         struct snd_soc_component *component = dai->component;
 391
 392         return snd_soc_component_update_bits(component, TAS2562_PWR_CTRL,
 393                                              TAS2562_MODE_MASK,
 394                                              mute ? TAS2562_MUTE : 0);
 395 }
 396
 397 static int tas2562_codec_probe(struct snd_soc_component *component)
 398 {
 399         struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
 400         int ret;
 401
 402         tas2562->component = component;
 403
 404         if (tas2562->sdz_gpio)
 405                 gpiod_set_value_cansleep(tas2562->sdz_gpio, 1);
 406
 407         ret = snd_soc_component_update_bits(component, TAS2562_PWR_CTRL,
 408                                             TAS2562_MODE_MASK, TAS2562_MUTE);
 409         if (ret < 0)
 410                 return ret;
 411
 412         return 0;
 413 }
 414
 415 #ifdef CONFIG_PM
 416 static int tas2562_suspend(struct snd_soc_component *component)
 417 {
 418         struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
 419
 420         regcache_cache_only(tas2562->regmap, true);
 421         regcache_mark_dirty(tas2562->regmap);
 422
 423         if (tas2562->sdz_gpio)
 424                 gpiod_set_value_cansleep(tas2562->sdz_gpio, 0);
 425
 426         return 0;
 427 }
 428
 429 static int tas2562_resume(struct snd_soc_component *component)
 430 {
 431         struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
 432
 433         if (tas2562->sdz_gpio)
 434                 gpiod_set_value_cansleep(tas2562->sdz_gpio, 1);
 435
 436         regcache_cache_only(tas2562->regmap, false);
 437
 438         return regcache_sync(tas2562->regmap);
 439 }
 440 #else
 441 #define tas2562_suspend NULL
 442 #define tas2562_resume NULL
 443 #endif
 444
 445 static const char * const tas2562_ASI1_src[] = {
 446         "I2C offset", "Left", "Right", "LeftRightDiv2",
 447 };
 448
 449 static SOC_ENUM_SINGLE_DECL(tas2562_ASI1_src_enum, TAS2562_TDM_CFG2, 4,
 450                             tas2562_ASI1_src);
 451
 452 static const struct snd_kcontrol_new tas2562_asi1_mux =
 453         SOC_DAPM_ENUM("ASI1 Source", tas2562_ASI1_src_enum);
 454
 455 static int tas2562_dac_event(struct snd_soc_dapm_widget *w,
 456                              struct snd_kcontrol *kcontrol, int event)
 457 {
 458         struct snd_soc_component *component =
 459                                         snd_soc_dapm_to_component(w->dapm);
 460         struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
 461         int ret;
 462
 463         switch (event) {
 464         case SND_SOC_DAPM_POST_PMU:
 465                 ret = snd_soc_component_update_bits(component,
 466                         TAS2562_PWR_CTRL,
 467                         TAS2562_MODE_MASK,
 468                         TAS2562_MUTE);
 469                 if (ret)
 470                         goto end;
 471                 break;
 472         case SND_SOC_DAPM_PRE_PMD:
 473                 ret = snd_soc_component_update_bits(component,
 474                         TAS2562_PWR_CTRL,
 475                         TAS2562_MODE_MASK,
 476                         TAS2562_SHUTDOWN);
 477                 if (ret)
 478                         goto end;
 479                 break;
 480         default:
 481                 dev_err(tas2562->dev, "Not supported evevt\n");
 482                 return -EINVAL;
 483         }
 484
 485 end:
 486         if (ret < 0)
 487                 return ret;
 488
 489         return 0;
 490 }
 491
 492 static int tas2562_volume_control_get(struct snd_kcontrol *kcontrol,
 493                                       struct snd_ctl_elem_value *ucontrol)
 494 {
 495         struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
 496         struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
 497
 498         ucontrol->value.integer.value[0] = tas2562->volume_lvl;
 499         return 0;
 500 }
 501
 502 static int tas2562_volume_control_put(struct snd_kcontrol *kcontrol,
 503                                       struct snd_ctl_elem_value *ucontrol)
 504 {
 505         struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
 506         struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
 507         int ret;
 508         u32 reg_val;
 509
 510         reg_val = float_vol_db_lookup[ucontrol->value.integer.value[0]/2];
 511         ret = snd_soc_component_write(component, TAS2562_DVC_CFG4,
 512                                       (reg_val & 0xff));
 513         if (ret)
 514                 return ret;
 515         ret = snd_soc_component_write(component, TAS2562_DVC_CFG3,
 516                                       ((reg_val >> 8) & 0xff));
 517         if (ret)
 518                 return ret;
 519         ret = snd_soc_component_write(component, TAS2562_DVC_CFG2,
 520                                       ((reg_val >> 16) & 0xff));
 521         if (ret)
 522                 return ret;
 523         ret = snd_soc_component_write(component, TAS2562_DVC_CFG1,
 524                                       ((reg_val >> 24) & 0xff));
 525         if (ret)
 526                 return ret;
 527
 528         tas2562->volume_lvl = ucontrol->value.integer.value[0];
 529
 530         return ret;
 531 }
 532
 533 /* Digital Volume Control. From 0 dB to -110 dB in 1 dB steps */
 534 static const DECLARE_TLV_DB_SCALE(dvc_tlv, -11000, 100, 0);
 535
 536 static DECLARE_TLV_DB_SCALE(tas2562_dac_tlv, 850, 50, 0);
 537
 538 static const struct snd_kcontrol_new isense_switch =
 539         SOC_DAPM_SINGLE("Switch", TAS2562_PWR_CTRL, TAS2562_ISENSE_POWER_EN,
 540                         1, 1);
 541
 542 static const struct snd_kcontrol_new vsense_switch =
 543         SOC_DAPM_SINGLE("Switch", TAS2562_PWR_CTRL, TAS2562_VSENSE_POWER_EN,
 544                         1, 1);
 545
 546 static const struct snd_kcontrol_new tas2562_snd_controls[] = {
 547         SOC_SINGLE_TLV("Amp Gain Volume", TAS2562_PB_CFG1, 1, 0x1c, 0,
 548                        tas2562_dac_tlv),
 549         {
 550                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 551                 .name = "Digital Volume Control",
 552                 .index = 0,
 553                 .tlv.p = dvc_tlv,
 554                 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | SNDRV_CTL_ELEM_ACCESS_READWRITE,
 555                 .info = snd_soc_info_volsw,
 556                 .get = tas2562_volume_control_get,
 557                 .put = tas2562_volume_control_put,
 558                 .private_value = SOC_SINGLE_VALUE(TAS2562_DVC_CFG1, 0, 110, 0, 0),
 559         },
 560 };
 561
 562 static const struct snd_soc_dapm_widget tas2110_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_OUTPUT("OUT"),
 568 };
 569
 570 static const struct snd_soc_dapm_route tas2110_audio_map[] = {
 571         {"ASI1 Sel", "I2C offset", "ASI1"},
 572         {"ASI1 Sel", "Left", "ASI1"},
 573         {"ASI1 Sel", "Right", "ASI1"},
 574         {"ASI1 Sel", "LeftRightDiv2", "ASI1"},
 575         { "DAC", NULL, "ASI1 Sel" },
 576         { "OUT", NULL, "DAC" },
 577 };
 578
 579 static const struct snd_soc_component_driver soc_component_dev_tas2110 = {
 580         .probe                  = tas2562_codec_probe,
 581         .suspend                = tas2562_suspend,
 582         .resume                 = tas2562_resume,
 583         .set_bias_level         = tas2562_set_bias_level,
 584         .controls               = tas2562_snd_controls,
 585         .num_controls           = ARRAY_SIZE(tas2562_snd_controls),
 586         .dapm_widgets           = tas2110_dapm_widgets,
 587         .num_dapm_widgets       = ARRAY_SIZE(tas2110_dapm_widgets),
 588         .dapm_routes            = tas2110_audio_map,
 589         .num_dapm_routes        = ARRAY_SIZE(tas2110_audio_map),
 590         .idle_bias_on           = 1,
 591         .use_pmdown_time        = 1,
 592         .endianness             = 1,
 593         .non_legacy_dai_naming  = 1,
 594 };
 595
 596 static const struct snd_soc_dapm_widget tas2562_dapm_widgets[] = {
 597         SND_SOC_DAPM_AIF_IN("ASI1", "ASI1 Playback", 0, SND_SOC_NOPM, 0, 0),
 598         SND_SOC_DAPM_MUX("ASI1 Sel", SND_SOC_NOPM, 0, 0, &tas2562_asi1_mux),
 599         SND_SOC_DAPM_DAC_E("DAC", NULL, SND_SOC_NOPM, 0, 0, tas2562_dac_event,
 600                            SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
 601         SND_SOC_DAPM_SWITCH("ISENSE", TAS2562_PWR_CTRL, 3, 1, &isense_switch),
 602         SND_SOC_DAPM_SWITCH("VSENSE", TAS2562_PWR_CTRL, 2, 1, &vsense_switch),
 603         SND_SOC_DAPM_SIGGEN("VMON"),
 604         SND_SOC_DAPM_SIGGEN("IMON"),
 605         SND_SOC_DAPM_OUTPUT("OUT"),
 606 };
 607
 608 static const struct snd_soc_dapm_route tas2562_audio_map[] = {
 609         {"ASI1 Sel", "I2C offset", "ASI1"},
 610         {"ASI1 Sel", "Left", "ASI1"},
 611         {"ASI1 Sel", "Right", "ASI1"},
 612         {"ASI1 Sel", "LeftRightDiv2", "ASI1"},
 613         { "DAC", NULL, "ASI1 Sel" },
 614         { "OUT", NULL, "DAC" },
 615         {"ISENSE", "Switch", "IMON"},
 616         {"VSENSE", "Switch", "VMON"},
 617 };
 618
 619 static const struct snd_soc_component_driver soc_component_dev_tas2562 = {
 620         .probe                  = tas2562_codec_probe,
 621         .suspend                = tas2562_suspend,
 622         .resume                 = tas2562_resume,
 623         .set_bias_level         = tas2562_set_bias_level,
 624         .controls               = tas2562_snd_controls,
 625         .num_controls           = ARRAY_SIZE(tas2562_snd_controls),
 626         .dapm_widgets           = tas2562_dapm_widgets,
 627         .num_dapm_widgets       = ARRAY_SIZE(tas2562_dapm_widgets),
 628         .dapm_routes            = tas2562_audio_map,
 629         .num_dapm_routes        = ARRAY_SIZE(tas2562_audio_map),
 630         .idle_bias_on           = 1,
 631         .use_pmdown_time        = 1,
 632         .endianness             = 1,
 633         .non_legacy_dai_naming  = 1,
 634 };
 635
 636 static const struct snd_soc_dai_ops tas2562_speaker_dai_ops = {
 637         .hw_params      = tas2562_hw_params,
 638         .set_fmt        = tas2562_set_dai_fmt,
 639         .set_tdm_slot   = tas2562_set_dai_tdm_slot,
 640         .mute_stream    = tas2562_mute,
 641         .no_capture_mute = 1,
 642 };
 643
 644 static struct snd_soc_dai_driver tas2562_dai[] = {
 645         {
 646                 .name = "tas2562-amplifier",
 647                 .id = 0,
 648                 .playback = {
 649                         .stream_name    = "ASI1 Playback",
 650                         .channels_min   = 2,
 651                         .channels_max   = 2,
 652                         .rates      = SNDRV_PCM_RATE_8000_192000,
 653                         .formats    = TAS2562_FORMATS,
 654                 },
 655                 .capture = {
 656                         .stream_name    = "ASI1 Capture",
 657                         .channels_min   = 0,
 658                         .channels_max   = 2,
 659                         .rates          = SNDRV_PCM_RATE_8000_192000,
 660                         .formats        = TAS2562_FORMATS,
 661                 },
 662                 .ops = &tas2562_speaker_dai_ops,
 663         },
 664 };
 665
 666 static const struct regmap_range_cfg tas2562_ranges[] = {
 667         {
 668                 .range_min = 0,
 669                 .range_max = 5 * 128,
 670                 .selector_reg = TAS2562_PAGE_CTRL,
 671                 .selector_mask = 0xff,
 672                 .selector_shift = 0,
 673                 .window_start = 0,
 674                 .window_len = 128,
 675         },
 676 };
 677
 678 static const struct reg_default tas2562_reg_defaults[] = {
 679         { TAS2562_PAGE_CTRL, 0x00 },
 680         { TAS2562_SW_RESET, 0x00 },
 681         { TAS2562_PWR_CTRL, 0x0e },
 682         { TAS2562_PB_CFG1, 0x20 },
 683         { TAS2562_TDM_CFG0, 0x09 },
 684         { TAS2562_TDM_CFG1, 0x02 },
 685         { TAS2562_DVC_CFG1, 0x40 },
 686         { TAS2562_DVC_CFG2, 0x40 },
 687         { TAS2562_DVC_CFG3, 0x00 },
 688         { TAS2562_DVC_CFG4, 0x00 },
 689 };
 690
 691 static const struct regmap_config tas2562_regmap_config = {
 692         .reg_bits = 8,
 693         .val_bits = 8,
 694
 695         .max_register = 5 * 128,
 696         .cache_type = REGCACHE_RBTREE,
 697         .reg_defaults = tas2562_reg_defaults,
 698         .num_reg_defaults = ARRAY_SIZE(tas2562_reg_defaults),
 699         .ranges = tas2562_ranges,
 700         .num_ranges = ARRAY_SIZE(tas2562_ranges),
 701 };
 702
 703 static int tas2562_parse_dt(struct tas2562_data *tas2562)
 704 {
 705         struct device *dev = tas2562->dev;
 706         int ret = 0;
 707
 708         tas2562->sdz_gpio = devm_gpiod_get_optional(dev, "shutdown", GPIOD_OUT_HIGH);
 709         if (IS_ERR(tas2562->sdz_gpio)) {
 710                 if (PTR_ERR(tas2562->sdz_gpio) == -EPROBE_DEFER)
 711                         return -EPROBE_DEFER;
 712
 713                 tas2562->sdz_gpio = NULL;
 714         }
 715
 716         /*
 717          * The shut-down property is deprecated but needs to be checked for
 718          * backwards compatibility.
 719          */
 720         if (tas2562->sdz_gpio == NULL) {
 721                 tas2562->sdz_gpio = devm_gpiod_get_optional(dev, "shut-down",
 722                                                               GPIOD_OUT_HIGH);
 723                 if (IS_ERR(tas2562->sdz_gpio))
 724                         if (PTR_ERR(tas2562->sdz_gpio) == -EPROBE_DEFER)
 725                                 return -EPROBE_DEFER;
 726
 727                 tas2562->sdz_gpio = NULL;
 728         }
 729
 730         if (tas2562->model_id == TAS2110)
 731                 return ret;
 732
 733         ret = fwnode_property_read_u32(dev->fwnode, "ti,imon-slot-no",
 734                         &tas2562->i_sense_slot);
 735         if (ret) {
 736                 dev_err(dev, "Property %s is missing setting default slot\n",
 737                         "ti,imon-slot-no");
 738                 tas2562->i_sense_slot = 0;
 739         }
 740
 741
 742         ret = fwnode_property_read_u32(dev->fwnode, "ti,vmon-slot-no",
 743                         &tas2562->v_sense_slot);
 744         if (ret) {
 745                 dev_info(dev, "Property %s is missing setting default slot\n",
 746                         "ti,vmon-slot-no");
 747                 tas2562->v_sense_slot = 2;
 748         }
 749
 750         if (tas2562->v_sense_slot < tas2562->i_sense_slot) {
 751                 dev_err(dev, "Vsense slot must be greater than Isense slot\n");
 752                 return -EINVAL;
 753         }
 754
 755         return ret;
 756 }
 757
 758 static int tas2562_probe(struct i2c_client *client,
 759                          const struct i2c_device_id *id)
 760 {
 761         struct device *dev = &client->dev;
 762         struct tas2562_data *data;
 763         int ret;
 764
 765         data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
 766         if (!data)
 767                 return -ENOMEM;
 768
 769         data->client = client;
 770         data->dev = &client->dev;
 771         data->model_id = id->driver_data;
 772
 773         tas2562_parse_dt(data);
 774
 775         data->regmap = devm_regmap_init_i2c(client, &tas2562_regmap_config);
 776         if (IS_ERR(data->regmap)) {
 777                 ret = PTR_ERR(data->regmap);
 778                 dev_err(dev, "failed to allocate register map: %d\n", ret);
 779                 return ret;
 780         }
 781
 782         dev_set_drvdata(&client->dev, data);
 783
 784         if (data->model_id == TAS2110)
 785                 return devm_snd_soc_register_component(dev,
 786                                                        &soc_component_dev_tas2110,
 787                                                        tas2562_dai,
 788                                                        ARRAY_SIZE(tas2562_dai));
 789
 790         return devm_snd_soc_register_component(dev, &soc_component_dev_tas2562,
 791                                                tas2562_dai,
 792                                                ARRAY_SIZE(tas2562_dai));
 793
 794 }
 795
 796 static const struct i2c_device_id tas2562_id[] = {
 797         { "tas2562", TAS2562 },
 798         { "tas2563", TAS2563 },
 799         { "tas2564", TAS2564 },
 800         { "tas2110", TAS2110 },
 801         { }
 802 };
 803 MODULE_DEVICE_TABLE(i2c, tas2562_id);
 804
 805 static const struct of_device_id tas2562_of_match[] = {
 806         { .compatible = "ti,tas2562", },
 807         { .compatible = "ti,tas2563", },
 808         { .compatible = "ti,tas2564", },
 809         { .compatible = "ti,tas2110", },
 810         { },
 811 };
 812 MODULE_DEVICE_TABLE(of, tas2562_of_match);
 813
 814 static struct i2c_driver tas2562_i2c_driver = {
 815         .driver = {
 816                 .name = "tas2562",
 817                 .of_match_table = of_match_ptr(tas2562_of_match),
 818         },
 819         .probe = tas2562_probe,
 820         .id_table = tas2562_id,
 821 };
 822
 823 module_i2c_driver(tas2562_i2c_driver);
 824
 825 MODULE_AUTHOR("Dan Murphy <dmurphy@ti.com>");
 826 MODULE_DESCRIPTION("TAS2562 Audio amplifier driver");
 827 MODULE_LICENSE("GPL");