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