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 static int tas2562_set_bias_level(struct snd_soc_component *component,
  59                                  enum snd_soc_bias_level level)
  60 {
  61         struct tas2562_data *tas2562 =
  62                         snd_soc_component_get_drvdata(component);
  63
  64         switch (level) {
  65         case SND_SOC_BIAS_ON:
  66                 snd_soc_component_update_bits(component,
  67                         TAS2562_PWR_CTRL,
  68                         TAS2562_MODE_MASK, TAS2562_ACTIVE);
  69                 break;
  70         case SND_SOC_BIAS_STANDBY:
  71         case SND_SOC_BIAS_PREPARE:
  72                 snd_soc_component_update_bits(component,
  73                         TAS2562_PWR_CTRL,
  74                         TAS2562_MODE_MASK, TAS2562_MUTE);
  75                 break;
  76         case SND_SOC_BIAS_OFF:
  77                 snd_soc_component_update_bits(component,
  78                         TAS2562_PWR_CTRL,
  79                         TAS2562_MODE_MASK, TAS2562_SHUTDOWN);
  80                 break;
  81
  82         default:
  83                 dev_err(tas2562->dev,
  84                                 "wrong power level setting %d\n", level);
  85                 return -EINVAL;
  86         }
  87
  88         return 0;
  89 }
  90
  91 static int tas2562_set_samplerate(struct tas2562_data *tas2562, int samplerate)
  92 {
  93         int samp_rate;
  94         int ramp_rate;
  95
  96         switch (samplerate) {
  97         case 7350:
  98                 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
  99                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_7305_8KHZ;
 100                 break;
 101         case 8000:
 102                 ramp_rate = 0;
 103                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_7305_8KHZ;
 104                 break;
 105         case 14700:
 106                 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
 107                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_14_7_16KHZ;
 108                 break;
 109         case 16000:
 110                 ramp_rate = 0;
 111                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_14_7_16KHZ;
 112                 break;
 113         case 22050:
 114                 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
 115                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_22_05_24KHZ;
 116                 break;
 117         case 24000:
 118                 ramp_rate = 0;
 119                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_22_05_24KHZ;
 120                 break;
 121         case 29400:
 122                 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
 123                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_29_4_32KHZ;
 124                 break;
 125         case 32000:
 126                 ramp_rate = 0;
 127                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_29_4_32KHZ;
 128                 break;
 129         case 44100:
 130                 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
 131                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_44_1_48KHZ;
 132                 break;
 133         case 48000:
 134                 ramp_rate = 0;
 135                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_44_1_48KHZ;
 136                 break;
 137         case 88200:
 138                 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
 139                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_88_2_96KHZ;
 140                 break;
 141         case 96000:
 142                 ramp_rate = 0;
 143                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_88_2_96KHZ;
 144                 break;
 145         case 176400:
 146                 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
 147                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_176_4_192KHZ;
 148                 break;
 149         case 192000:
 150                 ramp_rate = 0;
 151                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_176_4_192KHZ;
 152                 break;
 153         default:
 154                 dev_info(tas2562->dev, "%s, unsupported sample rate, %d\n",
 155                         __func__, samplerate);
 156                 return -EINVAL;
 157         }
 158
 159         snd_soc_component_update_bits(tas2562->component, TAS2562_TDM_CFG0,
 160                 TAS2562_TDM_CFG0_RAMPRATE_MASK, ramp_rate);
 161         snd_soc_component_update_bits(tas2562->component, TAS2562_TDM_CFG0,
 162                 TAS2562_TDM_CFG0_SAMPRATE_MASK, samp_rate);
 163
 164         return 0;
 165 }
 166
 167 static int tas2562_set_dai_tdm_slot(struct snd_soc_dai *dai,
 168                 unsigned int tx_mask, unsigned int rx_mask,
 169                 int slots, int slot_width)
 170 {
 171         struct snd_soc_component *component = dai->component;
 172         struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
 173         int ret = 0;
 174
 175         switch (slot_width) {
 176         case 16:
 177                 ret = snd_soc_component_update_bits(component,
 178                                                     TAS2562_TDM_CFG2,
 179                                                     TAS2562_TDM_CFG2_RXLEN_MASK,
 180                                                     TAS2562_TDM_CFG2_RXLEN_16B);
 181                 break;
 182         case 24:
 183                 ret = snd_soc_component_update_bits(component,
 184                                                     TAS2562_TDM_CFG2,
 185                                                     TAS2562_TDM_CFG2_RXLEN_MASK,
 186                                                     TAS2562_TDM_CFG2_RXLEN_24B);
 187                 break;
 188         case 32:
 189                 ret = snd_soc_component_update_bits(component,
 190                                                     TAS2562_TDM_CFG2,
 191                                                     TAS2562_TDM_CFG2_RXLEN_MASK,
 192                                                     TAS2562_TDM_CFG2_RXLEN_32B);
 193                 break;
 194
 195         case 0:
 196                 /* Do not change slot width */
 197                 break;
 198         default:
 199                 dev_err(tas2562->dev, "slot width not supported");
 200                 ret = -EINVAL;
 201         }
 202
 203         if (ret < 0)
 204                 return ret;
 205
 206         return 0;
 207 }
 208
 209 static int tas2562_set_bitwidth(struct tas2562_data *tas2562, int bitwidth)
 210 {
 211         int ret;
 212
 213         switch (bitwidth) {
 214         case SNDRV_PCM_FORMAT_S16_LE:
 215                 snd_soc_component_update_bits(tas2562->component,
 216                                               TAS2562_TDM_CFG2,
 217                                               TAS2562_TDM_CFG2_RXWLEN_MASK,
 218                                               TAS2562_TDM_CFG2_RXWLEN_16B);
 219                 tas2562->v_sense_slot = tas2562->i_sense_slot + 2;
 220                 break;
 221         case SNDRV_PCM_FORMAT_S24_LE:
 222                 snd_soc_component_update_bits(tas2562->component,
 223                                               TAS2562_TDM_CFG2,
 224                                               TAS2562_TDM_CFG2_RXWLEN_MASK,
 225                                               TAS2562_TDM_CFG2_RXWLEN_24B);
 226                 tas2562->v_sense_slot = tas2562->i_sense_slot + 4;
 227                 break;
 228         case SNDRV_PCM_FORMAT_S32_LE:
 229                 snd_soc_component_update_bits(tas2562->component,
 230                                               TAS2562_TDM_CFG2,
 231                                               TAS2562_TDM_CFG2_RXWLEN_MASK,
 232                                               TAS2562_TDM_CFG2_RXWLEN_32B);
 233                 tas2562->v_sense_slot = tas2562->i_sense_slot + 4;
 234                 break;
 235
 236         default:
 237                 dev_info(tas2562->dev, "Unsupported bitwidth format\n");
 238                 return -EINVAL;
 239         }
 240
 241         ret = snd_soc_component_update_bits(tas2562->component,
 242                 TAS2562_TDM_CFG5,
 243                 TAS2562_TDM_CFG5_VSNS_EN | TAS2562_TDM_CFG5_VSNS_SLOT_MASK,
 244                 TAS2562_TDM_CFG5_VSNS_EN | tas2562->v_sense_slot);
 245         if (ret < 0)
 246                 return ret;
 247
 248         ret = snd_soc_component_update_bits(tas2562->component,
 249                 TAS2562_TDM_CFG6,
 250                 TAS2562_TDM_CFG6_ISNS_EN | TAS2562_TDM_CFG6_ISNS_SLOT_MASK,
 251                 TAS2562_TDM_CFG6_ISNS_EN | tas2562->i_sense_slot);
 252         if (ret < 0)
 253                 return ret;
 254
 255         return 0;
 256 }
 257
 258 static int tas2562_hw_params(struct snd_pcm_substream *substream,
 259                              struct snd_pcm_hw_params *params,
 260                              struct snd_soc_dai *dai)
 261 {
 262         struct snd_soc_component *component = dai->component;
 263         struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
 264         int ret;
 265
 266         ret = tas2562_set_bitwidth(tas2562, params_format(params));
 267         if (ret) {
 268                 dev_err(tas2562->dev, "set bitwidth failed, %d\n", ret);
 269                 return ret;
 270         }
 271
 272         ret = tas2562_set_samplerate(tas2562, params_rate(params));
 273         if (ret)
 274                 dev_err(tas2562->dev, "set bitwidth failed, %d\n", ret);
 275
 276         return ret;
 277 }
 278
 279 static int tas2562_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt)
 280 {
 281         struct snd_soc_component *component = dai->component;
 282         struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
 283         u8 tdm_rx_start_slot = 0, asi_cfg_1 = 0;
 284         int ret;
 285
 286         switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
 287         case SND_SOC_DAIFMT_NB_NF:
 288                 asi_cfg_1 = 0;
 289                 break;
 290         case SND_SOC_DAIFMT_IB_NF:
 291                 asi_cfg_1 |= TAS2562_TDM_CFG1_RX_FALLING;
 292                 break;
 293         default:
 294                 dev_err(tas2562->dev, "ASI format Inverse is not found\n");
 295                 return -EINVAL;
 296         }
 297
 298         ret = snd_soc_component_update_bits(component, TAS2562_TDM_CFG1,
 299                                             TAS2562_TDM_CFG1_RX_EDGE_MASK,
 300                                             asi_cfg_1);
 301         if (ret < 0) {
 302                 dev_err(tas2562->dev, "Failed to set RX edge\n");
 303                 return ret;
 304         }
 305
 306         switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
 307         case (SND_SOC_DAIFMT_I2S):
 308         case (SND_SOC_DAIFMT_DSP_A):
 309         case (SND_SOC_DAIFMT_DSP_B):
 310                 tdm_rx_start_slot = BIT(1);
 311                 break;
 312         case (SND_SOC_DAIFMT_LEFT_J):
 313                 tdm_rx_start_slot = 0;
 314                 break;
 315         default:
 316                 dev_err(tas2562->dev, "DAI Format is not found, fmt=0x%x\n",
 317                         fmt);
 318                 ret = -EINVAL;
 319                 break;
 320         }
 321
 322         ret = snd_soc_component_update_bits(component, TAS2562_TDM_CFG1,
 323                                             TAS2562_TDM_CFG1_RX_OFFSET_MASK,
 324                                             tdm_rx_start_slot);
 325
 326         if (ret < 0)
 327                 return ret;
 328
 329         return 0;
 330 }
 331
 332 static int tas2562_mute(struct snd_soc_dai *dai, int mute)
 333 {
 334         struct snd_soc_component *component = dai->component;
 335
 336         return snd_soc_component_update_bits(component, TAS2562_PWR_CTRL,
 337                                              TAS2562_MODE_MASK,
 338                                              mute ? TAS2562_MUTE : 0);
 339 }
 340
 341 static int tas2562_codec_probe(struct snd_soc_component *component)
 342 {
 343         struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
 344         int ret;
 345
 346         tas2562->component = component;
 347
 348         if (tas2562->sdz_gpio)
 349                 gpiod_set_value_cansleep(tas2562->sdz_gpio, 1);
 350
 351         ret = snd_soc_component_update_bits(component, TAS2562_PWR_CTRL,
 352                                             TAS2562_MODE_MASK, TAS2562_MUTE);
 353         if (ret < 0)
 354                 return ret;
 355
 356         return 0;
 357 }
 358
 359 #ifdef CONFIG_PM
 360 static int tas2562_suspend(struct snd_soc_component *component)
 361 {
 362         struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
 363
 364         regcache_cache_only(tas2562->regmap, true);
 365         regcache_mark_dirty(tas2562->regmap);
 366
 367         if (tas2562->sdz_gpio)
 368                 gpiod_set_value_cansleep(tas2562->sdz_gpio, 0);
 369
 370         return 0;
 371 }
 372
 373 static int tas2562_resume(struct snd_soc_component *component)
 374 {
 375         struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
 376
 377         if (tas2562->sdz_gpio)
 378                 gpiod_set_value_cansleep(tas2562->sdz_gpio, 1);
 379
 380         regcache_cache_only(tas2562->regmap, false);
 381
 382         return regcache_sync(tas2562->regmap);
 383 }
 384 #else
 385 #define tas2562_suspend NULL
 386 #define tas2562_resume NULL
 387 #endif
 388
 389 static const char * const tas2562_ASI1_src[] = {
 390         "I2C offset", "Left", "Right", "LeftRightDiv2",
 391 };
 392
 393 static SOC_ENUM_SINGLE_DECL(tas2562_ASI1_src_enum, TAS2562_TDM_CFG2, 4,
 394                             tas2562_ASI1_src);
 395
 396 static const struct snd_kcontrol_new tas2562_asi1_mux =
 397         SOC_DAPM_ENUM("ASI1 Source", tas2562_ASI1_src_enum);
 398
 399 static int tas2562_dac_event(struct snd_soc_dapm_widget *w,
 400                              struct snd_kcontrol *kcontrol, int event)
 401 {
 402         struct snd_soc_component *component =
 403                                         snd_soc_dapm_to_component(w->dapm);
 404         struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
 405         int ret;
 406
 407         switch (event) {
 408         case SND_SOC_DAPM_POST_PMU:
 409                 ret = snd_soc_component_update_bits(component,
 410                         TAS2562_PWR_CTRL,
 411                         TAS2562_MODE_MASK,
 412                         TAS2562_MUTE);
 413                 if (ret)
 414                         goto end;
 415                 break;
 416         case SND_SOC_DAPM_PRE_PMD:
 417                 ret = snd_soc_component_update_bits(component,
 418                         TAS2562_PWR_CTRL,
 419                         TAS2562_MODE_MASK,
 420                         TAS2562_SHUTDOWN);
 421                 if (ret)
 422                         goto end;
 423                 break;
 424         default:
 425                 dev_err(tas2562->dev, "Not supported evevt\n");
 426                 return -EINVAL;
 427         }
 428
 429 end:
 430         if (ret < 0)
 431                 return ret;
 432
 433         return 0;
 434 }
 435
 436 static int tas2562_volume_control_get(struct snd_kcontrol *kcontrol,
 437                                       struct snd_ctl_elem_value *ucontrol)
 438 {
 439         struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
 440         struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
 441
 442         ucontrol->value.integer.value[0] = tas2562->volume_lvl;
 443         return 0;
 444 }
 445
 446 static int tas2562_volume_control_put(struct snd_kcontrol *kcontrol,
 447                                       struct snd_ctl_elem_value *ucontrol)
 448 {
 449         struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
 450         struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
 451         int ret;
 452         u32 reg_val;
 453
 454         reg_val = float_vol_db_lookup[ucontrol->value.integer.value[0]/2];
 455         ret = snd_soc_component_write(component, TAS2562_DVC_CFG4,
 456                                       (reg_val & 0xff));
 457         if (ret)
 458                 return ret;
 459         ret = snd_soc_component_write(component, TAS2562_DVC_CFG3,
 460                                       ((reg_val >> 8) & 0xff));
 461         if (ret)
 462                 return ret;
 463         ret = snd_soc_component_write(component, TAS2562_DVC_CFG2,
 464                                       ((reg_val >> 16) & 0xff));
 465         if (ret)
 466                 return ret;
 467         ret = snd_soc_component_write(component, TAS2562_DVC_CFG1,
 468                                       ((reg_val >> 24) & 0xff));
 469         if (ret)
 470                 return ret;
 471
 472         tas2562->volume_lvl = ucontrol->value.integer.value[0];
 473
 474         return ret;
 475 }
 476
 477 /* Digital Volume Control. From 0 dB to -110 dB in 1 dB steps */
 478 static const DECLARE_TLV_DB_SCALE(dvc_tlv, -11000, 100, 0);
 479
 480 static DECLARE_TLV_DB_SCALE(tas2562_dac_tlv, 850, 50, 0);
 481
 482 static const struct snd_kcontrol_new isense_switch =
 483         SOC_DAPM_SINGLE("Switch", TAS2562_PWR_CTRL, TAS2562_ISENSE_POWER_EN,
 484                         1, 1);
 485
 486 static const struct snd_kcontrol_new vsense_switch =
 487         SOC_DAPM_SINGLE("Switch", TAS2562_PWR_CTRL, TAS2562_VSENSE_POWER_EN,
 488                         1, 1);
 489
 490 static const struct snd_kcontrol_new tas2562_snd_controls[] = {
 491         SOC_SINGLE_TLV("Amp Gain Volume", TAS2562_PB_CFG1, 0, 0x1c, 0,
 492                        tas2562_dac_tlv),
 493         {
 494                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 495                 .name = "Digital Volume Control",
 496                 .index = 0,
 497                 .tlv.p = dvc_tlv,
 498                 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | SNDRV_CTL_ELEM_ACCESS_READWRITE,
 499                 .info = snd_soc_info_volsw,
 500                 .get = tas2562_volume_control_get,
 501                 .put = tas2562_volume_control_put,
 502                 .private_value = SOC_SINGLE_VALUE(TAS2562_DVC_CFG1, 0, 110, 0, 0) ,
 503         },
 504 };
 505
 506 static const struct snd_soc_dapm_widget tas2562_dapm_widgets[] = {
 507         SND_SOC_DAPM_AIF_IN("ASI1", "ASI1 Playback", 0, SND_SOC_NOPM, 0, 0),
 508         SND_SOC_DAPM_MUX("ASI1 Sel", SND_SOC_NOPM, 0, 0, &tas2562_asi1_mux),
 509         SND_SOC_DAPM_DAC_E("DAC", NULL, SND_SOC_NOPM, 0, 0, tas2562_dac_event,
 510                            SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
 511         SND_SOC_DAPM_SWITCH("ISENSE", TAS2562_PWR_CTRL, 3, 1, &isense_switch),
 512         SND_SOC_DAPM_SWITCH("VSENSE", TAS2562_PWR_CTRL, 2, 1, &vsense_switch),
 513         SND_SOC_DAPM_SIGGEN("VMON"),
 514         SND_SOC_DAPM_SIGGEN("IMON"),
 515         SND_SOC_DAPM_OUTPUT("OUT"),
 516 };
 517
 518 static const struct snd_soc_dapm_route tas2562_audio_map[] = {
 519         {"ASI1 Sel", "I2C offset", "ASI1"},
 520         {"ASI1 Sel", "Left", "ASI1"},
 521         {"ASI1 Sel", "Right", "ASI1"},
 522         {"ASI1 Sel", "LeftRightDiv2", "ASI1"},
 523         { "DAC", NULL, "ASI1 Sel" },
 524         { "OUT", NULL, "DAC" },
 525         {"ISENSE", "Switch", "IMON"},
 526         {"VSENSE", "Switch", "VMON"},
 527 };
 528
 529 static const struct snd_soc_component_driver soc_component_dev_tas2562 = {
 530         .probe                  = tas2562_codec_probe,
 531         .suspend                = tas2562_suspend,
 532         .resume                 = tas2562_resume,
 533         .set_bias_level         = tas2562_set_bias_level,
 534         .controls               = tas2562_snd_controls,
 535         .num_controls           = ARRAY_SIZE(tas2562_snd_controls),
 536         .dapm_widgets           = tas2562_dapm_widgets,
 537         .num_dapm_widgets       = ARRAY_SIZE(tas2562_dapm_widgets),
 538         .dapm_routes            = tas2562_audio_map,
 539         .num_dapm_routes        = ARRAY_SIZE(tas2562_audio_map),
 540         .idle_bias_on           = 1,
 541         .use_pmdown_time        = 1,
 542         .endianness             = 1,
 543         .non_legacy_dai_naming  = 1,
 544 };
 545
 546 static const struct snd_soc_dai_ops tas2562_speaker_dai_ops = {
 547         .hw_params      = tas2562_hw_params,
 548         .set_fmt        = tas2562_set_dai_fmt,
 549         .set_tdm_slot   = tas2562_set_dai_tdm_slot,
 550         .digital_mute   = tas2562_mute,
 551 };
 552
 553 static struct snd_soc_dai_driver tas2562_dai[] = {
 554         {
 555                 .name = "tas2562-amplifier",
 556                 .id = 0,
 557                 .playback = {
 558                         .stream_name    = "ASI1 Playback",
 559                         .channels_min   = 2,
 560                         .channels_max   = 2,
 561                         .rates      = SNDRV_PCM_RATE_8000_192000,
 562                         .formats    = TAS2562_FORMATS,
 563                 },
 564                 .capture = {
 565                         .stream_name    = "ASI1 Capture",
 566                         .channels_min   = 0,
 567                         .channels_max   = 2,
 568                         .rates          = SNDRV_PCM_RATE_8000_192000,
 569                         .formats        = TAS2562_FORMATS,
 570                 },
 571                 .ops = &tas2562_speaker_dai_ops,
 572         },
 573 };
 574
 575 static const struct regmap_range_cfg tas2562_ranges[] = {
 576         {
 577                 .range_min = 0,
 578                 .range_max = 5 * 128,
 579                 .selector_reg = TAS2562_PAGE_CTRL,
 580                 .selector_mask = 0xff,
 581                 .selector_shift = 0,
 582                 .window_start = 0,
 583                 .window_len = 128,
 584         },
 585 };
 586
 587 static const struct reg_default tas2562_reg_defaults[] = {
 588         { TAS2562_PAGE_CTRL, 0x00 },
 589         { TAS2562_SW_RESET, 0x00 },
 590         { TAS2562_PWR_CTRL, 0x0e },
 591         { TAS2562_PB_CFG1, 0x20 },
 592         { TAS2562_TDM_CFG0, 0x09 },
 593         { TAS2562_TDM_CFG1, 0x02 },
 594         { TAS2562_DVC_CFG1, 0x40 },
 595         { TAS2562_DVC_CFG2, 0x40 },
 596         { TAS2562_DVC_CFG3, 0x00 },
 597         { TAS2562_DVC_CFG4, 0x00 },
 598 };
 599
 600 static const struct regmap_config tas2562_regmap_config = {
 601         .reg_bits = 8,
 602         .val_bits = 8,
 603
 604         .max_register = 5 * 128,
 605         .cache_type = REGCACHE_RBTREE,
 606         .reg_defaults = tas2562_reg_defaults,
 607         .num_reg_defaults = ARRAY_SIZE(tas2562_reg_defaults),
 608         .ranges = tas2562_ranges,
 609         .num_ranges = ARRAY_SIZE(tas2562_ranges),
 610 };
 611
 612 static int tas2562_parse_dt(struct tas2562_data *tas2562)
 613 {
 614         struct device *dev = tas2562->dev;
 615         int ret = 0;
 616
 617         tas2562->sdz_gpio = devm_gpiod_get_optional(dev, "shut-down-gpio",
 618                                                       GPIOD_OUT_HIGH);
 619         if (IS_ERR(tas2562->sdz_gpio)) {
 620                 if (PTR_ERR(tas2562->sdz_gpio) == -EPROBE_DEFER) {
 621                         tas2562->sdz_gpio = NULL;
 622                         return -EPROBE_DEFER;
 623                 }
 624         }
 625
 626         ret = fwnode_property_read_u32(dev->fwnode, "ti,imon-slot-no",
 627                         &tas2562->i_sense_slot);
 628         if (ret)
 629                 dev_err(dev, "Looking up %s property failed %d\n",
 630                         "ti,imon-slot-no", ret);
 631
 632         return ret;
 633 }
 634
 635 static int tas2562_probe(struct i2c_client *client,
 636                          const struct i2c_device_id *id)
 637 {
 638         struct device *dev = &client->dev;
 639         struct tas2562_data *data;
 640         int ret;
 641
 642         data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
 643         if (!data)
 644                 return -ENOMEM;
 645
 646         data->client = client;
 647         data->dev = &client->dev;
 648
 649         tas2562_parse_dt(data);
 650
 651         data->regmap = devm_regmap_init_i2c(client, &tas2562_regmap_config);
 652         if (IS_ERR(data->regmap)) {
 653                 ret = PTR_ERR(data->regmap);
 654                 dev_err(dev, "failed to allocate register map: %d\n", ret);
 655                 return ret;
 656         }
 657
 658         dev_set_drvdata(&client->dev, data);
 659
 660         return devm_snd_soc_register_component(dev, &soc_component_dev_tas2562,
 661                                                tas2562_dai,
 662                                                ARRAY_SIZE(tas2562_dai));
 663
 664 }
 665
 666 static const struct i2c_device_id tas2562_id[] = {
 667         { "tas2562", 0 },
 668         { }
 669 };
 670 MODULE_DEVICE_TABLE(i2c, tas2562_id);
 671
 672 static const struct of_device_id tas2562_of_match[] = {
 673         { .compatible = "ti,tas2562", },
 674         { },
 675 };
 676 MODULE_DEVICE_TABLE(of, tas2562_of_match);
 677
 678 static struct i2c_driver tas2562_i2c_driver = {
 679         .driver = {
 680                 .name = "tas2562",
 681                 .of_match_table = of_match_ptr(tas2562_of_match),
 682         },
 683         .probe = tas2562_probe,
 684         .id_table = tas2562_id,
 685 };
 686
 687 module_i2c_driver(tas2562_i2c_driver);
 688
 689 MODULE_AUTHOR("Dan Murphy <dmurphy@ti.com>");
 690 MODULE_DESCRIPTION("TAS2562 Audio amplifier driver");
 691 MODULE_LICENSE("GPL");