sound/soc/codecs/tas2562.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 //
   3 // Driver for the Texas Instruments TAS2562 CODEC
   4 // Copyright (C) 2019 Texas Instruments Inc.
   5
   6
   7 #include <linux/module.h>
   8 #include <linux/errno.h>
   9 #include <linux/device.h>
  10 #include <linux/i2c.h>
  11 #include <linux/pm_runtime.h>
  12 #include <linux/regmap.h>
  13 #include <linux/slab.h>
  14 #include <linux/gpio/consumer.h>
  15 #include <linux/regulator/consumer.h>
  16 #include <linux/delay.h>
  17
  18 #include <sound/pcm.h>
  19 #include <sound/pcm_params.h>
  20 #include <sound/soc.h>
  21 #include <sound/soc-dapm.h>
  22 #include <sound/tlv.h>
  23
  24 #include "tas2562.h"
  25
  26 #define TAS2562_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE |\
  27                          SNDRV_PCM_FORMAT_S32_LE)
  28
  29 /* DVC equation involves floating point math
  30  * round(10^(volume in dB/20)*2^30)
  31  * so create a lookup table for 2dB step
  32  */
  33 static const unsigned int float_vol_db_lookup[] = {
  34 0x00000d43, 0x000010b2, 0x00001505, 0x00001a67, 0x00002151,
  35 0x000029f1, 0x000034cd, 0x00004279, 0x000053af, 0x0000695b,
  36 0x0000695b, 0x0000a6fa, 0x0000d236, 0x000108a4, 0x00014d2a,
  37 0x0001a36e, 0x00021008, 0x000298c0, 0x000344df, 0x00041d8f,
  38 0x00052e5a, 0x000685c8, 0x00083621, 0x000a566d, 0x000d03a7,
  39 0x0010624d, 0x0014a050, 0x0019f786, 0x0020b0bc, 0x0029279d,
  40 0x0033cf8d, 0x004139d3, 0x00521d50, 0x00676044, 0x0082248a,
  41 0x00a3d70a, 0x00ce4328, 0x0103ab3d, 0x0146e75d, 0x019b8c27,
  42 0x02061b89, 0x028c423f, 0x03352529, 0x0409c2b0, 0x05156d68,
  43 0x080e9f96, 0x0a24b062, 0x0cc509ab, 0x10137987, 0x143d1362,
  44 0x197a967f, 0x2013739e, 0x28619ae9, 0x32d64617, 0x40000000
  45 };
  46
  47 struct tas2562_data {
  48         struct snd_soc_component *component;
  49         struct gpio_desc *sdz_gpio;
  50         struct regmap *regmap;
  51         struct device *dev;
  52         struct i2c_client *client;
  53         int v_sense_slot;
  54         int i_sense_slot;
  55         int volume_lvl;
  56 };
  57
  58 enum tas256x_model {
  59         TAS2562,
  60         TAS2563,
  61 };
  62
  63 static int tas2562_set_bias_level(struct snd_soc_component *component,
  64                                  enum snd_soc_bias_level level)
  65 {
  66         struct tas2562_data *tas2562 =
  67                         snd_soc_component_get_drvdata(component);
  68
  69         switch (level) {
  70         case SND_SOC_BIAS_ON:
  71                 snd_soc_component_update_bits(component,
  72                         TAS2562_PWR_CTRL,
  73                         TAS2562_MODE_MASK, TAS2562_ACTIVE);
  74                 break;
  75         case SND_SOC_BIAS_STANDBY:
  76         case SND_SOC_BIAS_PREPARE:
  77                 snd_soc_component_update_bits(component,
  78                         TAS2562_PWR_CTRL,
  79                         TAS2562_MODE_MASK, TAS2562_MUTE);
  80                 break;
  81         case SND_SOC_BIAS_OFF:
  82                 snd_soc_component_update_bits(component,
  83                         TAS2562_PWR_CTRL,
  84                         TAS2562_MODE_MASK, TAS2562_SHUTDOWN);
  85                 break;
  86
  87         default:
  88                 dev_err(tas2562->dev,
  89                                 "wrong power level setting %d\n", level);
  90                 return -EINVAL;
  91         }
  92
  93         return 0;
  94 }
  95
  96 static int tas2562_set_samplerate(struct tas2562_data *tas2562, int samplerate)
  97 {
  98         int samp_rate;
  99         int ramp_rate;
 100
 101         switch (samplerate) {
 102         case 7350:
 103                 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
 104                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_7305_8KHZ;
 105                 break;
 106         case 8000:
 107                 ramp_rate = 0;
 108                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_7305_8KHZ;
 109                 break;
 110         case 14700:
 111                 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
 112                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_14_7_16KHZ;
 113                 break;
 114         case 16000:
 115                 ramp_rate = 0;
 116                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_14_7_16KHZ;
 117                 break;
 118         case 22050:
 119                 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
 120                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_22_05_24KHZ;
 121                 break;
 122         case 24000:
 123                 ramp_rate = 0;
 124                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_22_05_24KHZ;
 125                 break;
 126         case 29400:
 127                 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
 128                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_29_4_32KHZ;
 129                 break;
 130         case 32000:
 131                 ramp_rate = 0;
 132                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_29_4_32KHZ;
 133                 break;
 134         case 44100:
 135                 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
 136                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_44_1_48KHZ;
 137                 break;
 138         case 48000:
 139                 ramp_rate = 0;
 140                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_44_1_48KHZ;
 141                 break;
 142         case 88200:
 143                 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
 144                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_88_2_96KHZ;
 145                 break;
 146         case 96000:
 147                 ramp_rate = 0;
 148                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_88_2_96KHZ;
 149                 break;
 150         case 176400:
 151                 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
 152                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_176_4_192KHZ;
 153                 break;
 154         case 192000:
 155                 ramp_rate = 0;
 156                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_176_4_192KHZ;
 157                 break;
 158         default:
 159                 dev_info(tas2562->dev, "%s, unsupported sample rate, %d\n",
 160                         __func__, samplerate);
 161                 return -EINVAL;
 162         }
 163
 164         snd_soc_component_update_bits(tas2562->component, TAS2562_TDM_CFG0,
 165                 TAS2562_TDM_CFG0_RAMPRATE_MASK, ramp_rate);
 166         snd_soc_component_update_bits(tas2562->component, TAS2562_TDM_CFG0,
 167                 TAS2562_TDM_CFG0_SAMPRATE_MASK, samp_rate);
 168
 169         return 0;
 170 }
 171
 172 static int tas2562_set_dai_tdm_slot(struct snd_soc_dai *dai,
 173                 unsigned int tx_mask, unsigned int rx_mask,
 174                 int slots, int slot_width)
 175 {
 176         struct snd_soc_component *component = dai->component;
 177         struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
 178         int ret = 0;
 179
 180         switch (slot_width) {
 181         case 16:
 182                 ret = snd_soc_component_update_bits(component,
 183                                                     TAS2562_TDM_CFG2,
 184                                                     TAS2562_TDM_CFG2_RXLEN_MASK,
 185                                                     TAS2562_TDM_CFG2_RXLEN_16B);
 186                 break;
 187         case 24:
 188                 ret = snd_soc_component_update_bits(component,
 189                                                     TAS2562_TDM_CFG2,
 190                                                     TAS2562_TDM_CFG2_RXLEN_MASK,
 191                                                     TAS2562_TDM_CFG2_RXLEN_24B);
 192                 break;
 193         case 32:
 194                 ret = snd_soc_component_update_bits(component,
 195                                                     TAS2562_TDM_CFG2,
 196                                                     TAS2562_TDM_CFG2_RXLEN_MASK,
 197                                                     TAS2562_TDM_CFG2_RXLEN_32B);
 198                 break;
 199
 200         case 0:
 201                 /* Do not change slot width */
 202                 break;
 203         default:
 204                 dev_err(tas2562->dev, "slot width not supported");
 205                 ret = -EINVAL;
 206         }
 207
 208         if (ret < 0)
 209                 return ret;
 210
 211         return 0;
 212 }
 213
 214 static int tas2562_set_bitwidth(struct tas2562_data *tas2562, int bitwidth)
 215 {
 216         int ret;
 217
 218         switch (bitwidth) {
 219         case SNDRV_PCM_FORMAT_S16_LE:
 220                 snd_soc_component_update_bits(tas2562->component,
 221                                               TAS2562_TDM_CFG2,
 222                                               TAS2562_TDM_CFG2_RXWLEN_MASK,
 223                                               TAS2562_TDM_CFG2_RXWLEN_16B);
 224                 tas2562->v_sense_slot = tas2562->i_sense_slot + 2;
 225                 break;
 226         case SNDRV_PCM_FORMAT_S24_LE:
 227                 snd_soc_component_update_bits(tas2562->component,
 228                                               TAS2562_TDM_CFG2,
 229                                               TAS2562_TDM_CFG2_RXWLEN_MASK,
 230                                               TAS2562_TDM_CFG2_RXWLEN_24B);
 231                 tas2562->v_sense_slot = tas2562->i_sense_slot + 4;
 232                 break;
 233         case SNDRV_PCM_FORMAT_S32_LE:
 234                 snd_soc_component_update_bits(tas2562->component,
 235                                               TAS2562_TDM_CFG2,
 236                                               TAS2562_TDM_CFG2_RXWLEN_MASK,
 237                                               TAS2562_TDM_CFG2_RXWLEN_32B);
 238                 tas2562->v_sense_slot = tas2562->i_sense_slot + 4;
 239                 break;
 240
 241         default:
 242                 dev_info(tas2562->dev, "Unsupported bitwidth format\n");
 243                 return -EINVAL;
 244         }
 245
 246         ret = snd_soc_component_update_bits(tas2562->component,
 247                 TAS2562_TDM_CFG5,
 248                 TAS2562_TDM_CFG5_VSNS_EN | TAS2562_TDM_CFG5_VSNS_SLOT_MASK,
 249                 TAS2562_TDM_CFG5_VSNS_EN | tas2562->v_sense_slot);
 250         if (ret < 0)
 251                 return ret;
 252
 253         ret = snd_soc_component_update_bits(tas2562->component,
 254                 TAS2562_TDM_CFG6,
 255                 TAS2562_TDM_CFG6_ISNS_EN | TAS2562_TDM_CFG6_ISNS_SLOT_MASK,
 256                 TAS2562_TDM_CFG6_ISNS_EN | tas2562->i_sense_slot);
 257         if (ret < 0)
 258                 return ret;
 259
 260         return 0;
 261 }
 262
 263 static int tas2562_hw_params(struct snd_pcm_substream *substream,
 264                              struct snd_pcm_hw_params *params,
 265                              struct snd_soc_dai *dai)
 266 {
 267         struct snd_soc_component *component = dai->component;
 268         struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
 269         int ret;
 270
 271         ret = tas2562_set_bitwidth(tas2562, params_format(params));
 272         if (ret) {
 273                 dev_err(tas2562->dev, "set bitwidth failed, %d\n", ret);
 274                 return ret;
 275         }
 276
 277         ret = tas2562_set_samplerate(tas2562, params_rate(params));
 278         if (ret)
 279                 dev_err(tas2562->dev, "set sample rate failed, %d\n", ret);
 280
 281         return ret;
 282 }
 283
 284 static int tas2562_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt)
 285 {
 286         struct snd_soc_component *component = dai->component;
 287         struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
 288         u8 tdm_rx_start_slot = 0, asi_cfg_1 = 0;
 289         int ret;
 290
 291         switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
 292         case SND_SOC_DAIFMT_NB_NF:
 293                 asi_cfg_1 = 0;
 294                 break;
 295         case SND_SOC_DAIFMT_IB_NF:
 296                 asi_cfg_1 |= TAS2562_TDM_CFG1_RX_FALLING;
 297                 break;
 298         default:
 299                 dev_err(tas2562->dev, "ASI format Inverse is not found\n");
 300                 return -EINVAL;
 301         }
 302
 303         ret = snd_soc_component_update_bits(component, TAS2562_TDM_CFG1,
 304                                             TAS2562_TDM_CFG1_RX_EDGE_MASK,
 305                                             asi_cfg_1);
 306         if (ret < 0) {
 307                 dev_err(tas2562->dev, "Failed to set RX edge\n");
 308                 return ret;
 309         }
 310
 311         switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
 312         case (SND_SOC_DAIFMT_I2S):
 313         case (SND_SOC_DAIFMT_DSP_A):
 314         case (SND_SOC_DAIFMT_DSP_B):
 315                 tdm_rx_start_slot = BIT(1);
 316                 break;
 317         case (SND_SOC_DAIFMT_LEFT_J):
 318                 tdm_rx_start_slot = 0;
 319                 break;
 320         default:
 321                 dev_err(tas2562->dev, "DAI Format is not found, fmt=0x%x\n",
 322                         fmt);
 323                 ret = -EINVAL;
 324                 break;
 325         }
 326
 327         ret = snd_soc_component_update_bits(component, TAS2562_TDM_CFG1,
 328                                             TAS2562_TDM_CFG1_RX_OFFSET_MASK,
 329                                             tdm_rx_start_slot);
 330
 331         if (ret < 0)
 332                 return ret;
 333
 334         return 0;
 335 }
 336
 337 static int tas2562_mute(struct snd_soc_dai *dai, int mute)
 338 {
 339         struct snd_soc_component *component = dai->component;
 340
 341         return snd_soc_component_update_bits(component, TAS2562_PWR_CTRL,
 342                                              TAS2562_MODE_MASK,
 343                                              mute ? TAS2562_MUTE : 0);
 344 }
 345
 346 static int tas2562_codec_probe(struct snd_soc_component *component)
 347 {
 348         struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
 349         int ret;
 350
 351         tas2562->component = component;
 352
 353         if (tas2562->sdz_gpio)
 354                 gpiod_set_value_cansleep(tas2562->sdz_gpio, 1);
 355
 356         ret = snd_soc_component_update_bits(component, TAS2562_PWR_CTRL,
 357                                             TAS2562_MODE_MASK, TAS2562_MUTE);
 358         if (ret < 0)
 359                 return ret;
 360
 361         return 0;
 362 }
 363
 364 #ifdef CONFIG_PM
 365 static int tas2562_suspend(struct snd_soc_component *component)
 366 {
 367         struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
 368
 369         regcache_cache_only(tas2562->regmap, true);
 370         regcache_mark_dirty(tas2562->regmap);
 371
 372         if (tas2562->sdz_gpio)
 373                 gpiod_set_value_cansleep(tas2562->sdz_gpio, 0);
 374
 375         return 0;
 376 }
 377
 378 static int tas2562_resume(struct snd_soc_component *component)
 379 {
 380         struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
 381
 382         if (tas2562->sdz_gpio)
 383                 gpiod_set_value_cansleep(tas2562->sdz_gpio, 1);
 384
 385         regcache_cache_only(tas2562->regmap, false);
 386
 387         return regcache_sync(tas2562->regmap);
 388 }
 389 #else
 390 #define tas2562_suspend NULL
 391 #define tas2562_resume NULL
 392 #endif
 393
 394 static const char * const tas2562_ASI1_src[] = {
 395         "I2C offset", "Left", "Right", "LeftRightDiv2",
 396 };
 397
 398 static SOC_ENUM_SINGLE_DECL(tas2562_ASI1_src_enum, TAS2562_TDM_CFG2, 4,
 399                             tas2562_ASI1_src);
 400
 401 static const struct snd_kcontrol_new tas2562_asi1_mux =
 402         SOC_DAPM_ENUM("ASI1 Source", tas2562_ASI1_src_enum);
 403
 404 static int tas2562_dac_event(struct snd_soc_dapm_widget *w,
 405                              struct snd_kcontrol *kcontrol, int event)
 406 {
 407         struct snd_soc_component *component =
 408                                         snd_soc_dapm_to_component(w->dapm);
 409         struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
 410         int ret;
 411
 412         switch (event) {
 413         case SND_SOC_DAPM_POST_PMU:
 414                 ret = snd_soc_component_update_bits(component,
 415                         TAS2562_PWR_CTRL,
 416                         TAS2562_MODE_MASK,
 417                         TAS2562_MUTE);
 418                 if (ret)
 419                         goto end;
 420                 break;
 421         case SND_SOC_DAPM_PRE_PMD:
 422                 ret = snd_soc_component_update_bits(component,
 423                         TAS2562_PWR_CTRL,
 424                         TAS2562_MODE_MASK,
 425                         TAS2562_SHUTDOWN);
 426                 if (ret)
 427                         goto end;
 428                 break;
 429         default:
 430                 dev_err(tas2562->dev, "Not supported evevt\n");
 431                 return -EINVAL;
 432         }
 433
 434 end:
 435         if (ret < 0)
 436                 return ret;
 437
 438         return 0;
 439 }
 440
 441 static int tas2562_volume_control_get(struct snd_kcontrol *kcontrol,
 442                                       struct snd_ctl_elem_value *ucontrol)
 443 {
 444         struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
 445         struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
 446
 447         ucontrol->value.integer.value[0] = tas2562->volume_lvl;
 448         return 0;
 449 }
 450
 451 static int tas2562_volume_control_put(struct snd_kcontrol *kcontrol,
 452                                       struct snd_ctl_elem_value *ucontrol)
 453 {
 454         struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
 455         struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
 456         int ret;
 457         u32 reg_val;
 458
 459         reg_val = float_vol_db_lookup[ucontrol->value.integer.value[0]/2];
 460         ret = snd_soc_component_write(component, TAS2562_DVC_CFG4,
 461                                       (reg_val & 0xff));
 462         if (ret)
 463                 return ret;
 464         ret = snd_soc_component_write(component, TAS2562_DVC_CFG3,
 465                                       ((reg_val >> 8) & 0xff));
 466         if (ret)
 467                 return ret;
 468         ret = snd_soc_component_write(component, TAS2562_DVC_CFG2,
 469                                       ((reg_val >> 16) & 0xff));
 470         if (ret)
 471                 return ret;
 472         ret = snd_soc_component_write(component, TAS2562_DVC_CFG1,
 473                                       ((reg_val >> 24) & 0xff));
 474         if (ret)
 475                 return ret;
 476
 477         tas2562->volume_lvl = ucontrol->value.integer.value[0];
 478
 479         return ret;
 480 }
 481
 482 /* Digital Volume Control. From 0 dB to -110 dB in 1 dB steps */
 483 static const DECLARE_TLV_DB_SCALE(dvc_tlv, -11000, 100, 0);
 484
 485 static DECLARE_TLV_DB_SCALE(tas2562_dac_tlv, 850, 50, 0);
 486
 487 static const struct snd_kcontrol_new isense_switch =
 488         SOC_DAPM_SINGLE("Switch", TAS2562_PWR_CTRL, TAS2562_ISENSE_POWER_EN,
 489                         1, 1);
 490
 491 static const struct snd_kcontrol_new vsense_switch =
 492         SOC_DAPM_SINGLE("Switch", TAS2562_PWR_CTRL, TAS2562_VSENSE_POWER_EN,
 493                         1, 1);
 494
 495 static const struct snd_kcontrol_new tas2562_snd_controls[] = {
 496         SOC_SINGLE_TLV("Amp Gain Volume", TAS2562_PB_CFG1, 0, 0x1c, 0,
 497                        tas2562_dac_tlv),
 498         {
 499                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 500                 .name = "Digital Volume Control",
 501                 .index = 0,
 502                 .tlv.p = dvc_tlv,
 503                 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | SNDRV_CTL_ELEM_ACCESS_READWRITE,
 504                 .info = snd_soc_info_volsw,
 505                 .get = tas2562_volume_control_get,
 506                 .put = tas2562_volume_control_put,
 507                 .private_value = SOC_SINGLE_VALUE(TAS2562_DVC_CFG1, 0, 110, 0, 0) ,
 508         },
 509 };
 510
 511 static const struct snd_soc_dapm_widget tas2562_dapm_widgets[] = {
 512         SND_SOC_DAPM_AIF_IN("ASI1", "ASI1 Playback", 0, SND_SOC_NOPM, 0, 0),
 513         SND_SOC_DAPM_MUX("ASI1 Sel", SND_SOC_NOPM, 0, 0, &tas2562_asi1_mux),
 514         SND_SOC_DAPM_DAC_E("DAC", NULL, SND_SOC_NOPM, 0, 0, tas2562_dac_event,
 515                            SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
 516         SND_SOC_DAPM_SWITCH("ISENSE", TAS2562_PWR_CTRL, 3, 1, &isense_switch),
 517         SND_SOC_DAPM_SWITCH("VSENSE", TAS2562_PWR_CTRL, 2, 1, &vsense_switch),
 518         SND_SOC_DAPM_SIGGEN("VMON"),
 519         SND_SOC_DAPM_SIGGEN("IMON"),
 520         SND_SOC_DAPM_OUTPUT("OUT"),
 521 };
 522
 523 static const struct snd_soc_dapm_route tas2562_audio_map[] = {
 524         {"ASI1 Sel", "I2C offset", "ASI1"},
 525         {"ASI1 Sel", "Left", "ASI1"},
 526         {"ASI1 Sel", "Right", "ASI1"},
 527         {"ASI1 Sel", "LeftRightDiv2", "ASI1"},
 528         { "DAC", NULL, "ASI1 Sel" },
 529         { "OUT", NULL, "DAC" },
 530         {"ISENSE", "Switch", "IMON"},
 531         {"VSENSE", "Switch", "VMON"},
 532 };
 533
 534 static const struct snd_soc_component_driver soc_component_dev_tas2562 = {
 535         .probe                  = tas2562_codec_probe,
 536         .suspend                = tas2562_suspend,
 537         .resume                 = tas2562_resume,
 538         .set_bias_level         = tas2562_set_bias_level,
 539         .controls               = tas2562_snd_controls,
 540         .num_controls           = ARRAY_SIZE(tas2562_snd_controls),
 541         .dapm_widgets           = tas2562_dapm_widgets,
 542         .num_dapm_widgets       = ARRAY_SIZE(tas2562_dapm_widgets),
 543         .dapm_routes            = tas2562_audio_map,
 544         .num_dapm_routes        = ARRAY_SIZE(tas2562_audio_map),
 545         .idle_bias_on           = 1,
 546         .use_pmdown_time        = 1,
 547         .endianness             = 1,
 548         .non_legacy_dai_naming  = 1,
 549 };
 550
 551 static const struct snd_soc_dai_ops tas2562_speaker_dai_ops = {
 552         .hw_params      = tas2562_hw_params,
 553         .set_fmt        = tas2562_set_dai_fmt,
 554         .set_tdm_slot   = tas2562_set_dai_tdm_slot,
 555         .digital_mute   = tas2562_mute,
 556 };
 557
 558 static struct snd_soc_dai_driver tas2562_dai[] = {
 559         {
 560                 .name = "tas2562-amplifier",
 561                 .id = 0,
 562                 .playback = {
 563                         .stream_name    = "ASI1 Playback",
 564                         .channels_min   = 2,
 565                         .channels_max   = 2,
 566                         .rates      = SNDRV_PCM_RATE_8000_192000,
 567                         .formats    = TAS2562_FORMATS,
 568                 },
 569                 .capture = {
 570                         .stream_name    = "ASI1 Capture",
 571                         .channels_min   = 0,
 572                         .channels_max   = 2,
 573                         .rates          = SNDRV_PCM_RATE_8000_192000,
 574                         .formats        = TAS2562_FORMATS,
 575                 },
 576                 .ops = &tas2562_speaker_dai_ops,
 577         },
 578 };
 579
 580 static const struct regmap_range_cfg tas2562_ranges[] = {
 581         {
 582                 .range_min = 0,
 583                 .range_max = 5 * 128,
 584                 .selector_reg = TAS2562_PAGE_CTRL,
 585                 .selector_mask = 0xff,
 586                 .selector_shift = 0,
 587                 .window_start = 0,
 588                 .window_len = 128,
 589         },
 590 };
 591
 592 static const struct reg_default tas2562_reg_defaults[] = {
 593         { TAS2562_PAGE_CTRL, 0x00 },
 594         { TAS2562_SW_RESET, 0x00 },
 595         { TAS2562_PWR_CTRL, 0x0e },
 596         { TAS2562_PB_CFG1, 0x20 },
 597         { TAS2562_TDM_CFG0, 0x09 },
 598         { TAS2562_TDM_CFG1, 0x02 },
 599         { TAS2562_DVC_CFG1, 0x40 },
 600         { TAS2562_DVC_CFG2, 0x40 },
 601         { TAS2562_DVC_CFG3, 0x00 },
 602         { TAS2562_DVC_CFG4, 0x00 },
 603 };
 604
 605 static const struct regmap_config tas2562_regmap_config = {
 606         .reg_bits = 8,
 607         .val_bits = 8,
 608
 609         .max_register = 5 * 128,
 610         .cache_type = REGCACHE_RBTREE,
 611         .reg_defaults = tas2562_reg_defaults,
 612         .num_reg_defaults = ARRAY_SIZE(tas2562_reg_defaults),
 613         .ranges = tas2562_ranges,
 614         .num_ranges = ARRAY_SIZE(tas2562_ranges),
 615 };
 616
 617 static int tas2562_parse_dt(struct tas2562_data *tas2562)
 618 {
 619         struct device *dev = tas2562->dev;
 620         int ret = 0;
 621
 622         tas2562->sdz_gpio = devm_gpiod_get_optional(dev, "shut-down-gpio",
 623                                                       GPIOD_OUT_HIGH);
 624         if (IS_ERR(tas2562->sdz_gpio)) {
 625                 if (PTR_ERR(tas2562->sdz_gpio) == -EPROBE_DEFER) {
 626                         tas2562->sdz_gpio = NULL;
 627                         return -EPROBE_DEFER;
 628                 }
 629         }
 630
 631         ret = fwnode_property_read_u32(dev->fwnode, "ti,imon-slot-no",
 632                         &tas2562->i_sense_slot);
 633         if (ret)
 634                 dev_err(dev, "Looking up %s property failed %d\n",
 635                         "ti,imon-slot-no", ret);
 636
 637         return ret;
 638 }
 639
 640 static int tas2562_probe(struct i2c_client *client,
 641                          const struct i2c_device_id *id)
 642 {
 643         struct device *dev = &client->dev;
 644         struct tas2562_data *data;
 645         int ret;
 646
 647         data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
 648         if (!data)
 649                 return -ENOMEM;
 650
 651         data->client = client;
 652         data->dev = &client->dev;
 653
 654         tas2562_parse_dt(data);
 655
 656         data->regmap = devm_regmap_init_i2c(client, &tas2562_regmap_config);
 657         if (IS_ERR(data->regmap)) {
 658                 ret = PTR_ERR(data->regmap);
 659                 dev_err(dev, "failed to allocate register map: %d\n", ret);
 660                 return ret;
 661         }
 662
 663         dev_set_drvdata(&client->dev, data);
 664
 665         return devm_snd_soc_register_component(dev, &soc_component_dev_tas2562,
 666                                                tas2562_dai,
 667                                                ARRAY_SIZE(tas2562_dai));
 668
 669 }
 670
 671 static const struct i2c_device_id tas2562_id[] = {
 672         { "tas2562", TAS2562 },
 673         { "tas2563", TAS2563 },
 674         { }
 675 };
 676 MODULE_DEVICE_TABLE(i2c, tas2562_id);
 677
 678 static const struct of_device_id tas2562_of_match[] = {
 679         { .compatible = "ti,tas2562", },
 680         { .compatible = "ti,tas2563", },
 681         { },
 682 };
 683 MODULE_DEVICE_TABLE(of, tas2562_of_match);
 684
 685 static struct i2c_driver tas2562_i2c_driver = {
 686         .driver = {
 687                 .name = "tas2562",
 688                 .of_match_table = of_match_ptr(tas2562_of_match),
 689         },
 690         .probe = tas2562_probe,
 691         .id_table = tas2562_id,
 692 };
 693
 694 module_i2c_driver(tas2562_i2c_driver);
 695
 696 MODULE_AUTHOR("Dan Murphy <dmurphy@ti.com>");
 697 MODULE_DESCRIPTION("TAS2562 Audio amplifier driver");
 698 MODULE_LICENSE("GPL");