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         bool dac_powered;
  58         bool unmuted;
  59 };
  60
  61 enum tas256x_model {
  62         TAS2562,
  63         TAS2563,
  64         TAS2564,
  65         TAS2110,
  66 };
  67
  68 static int tas2562_set_samplerate(struct tas2562_data *tas2562, int samplerate)
  69 {
  70         int samp_rate;
  71         int ramp_rate;
  72
  73         switch (samplerate) {
  74         case 7350:
  75                 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
  76                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_7305_8KHZ;
  77                 break;
  78         case 8000:
  79                 ramp_rate = 0;
  80                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_7305_8KHZ;
  81                 break;
  82         case 14700:
  83                 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
  84                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_14_7_16KHZ;
  85                 break;
  86         case 16000:
  87                 ramp_rate = 0;
  88                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_14_7_16KHZ;
  89                 break;
  90         case 22050:
  91                 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
  92                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_22_05_24KHZ;
  93                 break;
  94         case 24000:
  95                 ramp_rate = 0;
  96                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_22_05_24KHZ;
  97                 break;
  98         case 29400:
  99                 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
 100                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_29_4_32KHZ;
 101                 break;
 102         case 32000:
 103                 ramp_rate = 0;
 104                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_29_4_32KHZ;
 105                 break;
 106         case 44100:
 107                 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
 108                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_44_1_48KHZ;
 109                 break;
 110         case 48000:
 111                 ramp_rate = 0;
 112                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_44_1_48KHZ;
 113                 break;
 114         case 88200:
 115                 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
 116                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_88_2_96KHZ;
 117                 break;
 118         case 96000:
 119                 ramp_rate = 0;
 120                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_88_2_96KHZ;
 121                 break;
 122         case 176400:
 123                 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1;
 124                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_176_4_192KHZ;
 125                 break;
 126         case 192000:
 127                 ramp_rate = 0;
 128                 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_176_4_192KHZ;
 129                 break;
 130         default:
 131                 dev_info(tas2562->dev, "%s, unsupported sample rate, %d\n",
 132                         __func__, samplerate);
 133                 return -EINVAL;
 134         }
 135
 136         snd_soc_component_update_bits(tas2562->component, TAS2562_TDM_CFG0,
 137                 TAS2562_TDM_CFG0_RAMPRATE_MASK, ramp_rate);
 138         snd_soc_component_update_bits(tas2562->component, TAS2562_TDM_CFG0,
 139                 TAS2562_TDM_CFG0_SAMPRATE_MASK, samp_rate);
 140
 141         return 0;
 142 }
 143
 144 static int tas2562_set_dai_tdm_slot(struct snd_soc_dai *dai,
 145                 unsigned int tx_mask, unsigned int rx_mask,
 146                 int slots, int slot_width)
 147 {
 148         struct snd_soc_component *component = dai->component;
 149         struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
 150         int left_slot, right_slot;
 151         int slots_cfg;
 152         int ret;
 153
 154         if (!tx_mask) {
 155                 dev_err(component->dev, "tx masks must not be 0\n");
 156                 return -EINVAL;
 157         }
 158
 159         if (slots == 1) {
 160                 if (tx_mask != 1)
 161                         return -EINVAL;
 162
 163                 left_slot = 0;
 164                 right_slot = 0;
 165         } else {
 166                 left_slot = __ffs(tx_mask);
 167                 tx_mask &= ~(1 << left_slot);
 168                 if (tx_mask == 0) {
 169                         right_slot = left_slot;
 170                 } else {
 171                         right_slot = __ffs(tx_mask);
 172                 }
 173         }
 174
 175         slots_cfg = (right_slot << TAS2562_RIGHT_SLOT_SHIFT) | left_slot;
 176
 177         ret = snd_soc_component_write(component, TAS2562_TDM_CFG3, slots_cfg);
 178         if (ret < 0)
 179                 return ret;
 180
 181         switch (slot_width) {
 182         case 16:
 183                 ret = snd_soc_component_update_bits(component,
 184                                                     TAS2562_TDM_CFG2,
 185                                                     TAS2562_TDM_CFG2_RXLEN_MASK,
 186                                                     TAS2562_TDM_CFG2_RXLEN_16B);
 187                 break;
 188         case 24:
 189                 ret = snd_soc_component_update_bits(component,
 190                                                     TAS2562_TDM_CFG2,
 191                                                     TAS2562_TDM_CFG2_RXLEN_MASK,
 192                                                     TAS2562_TDM_CFG2_RXLEN_24B);
 193                 break;
 194         case 32:
 195                 ret = snd_soc_component_update_bits(component,
 196                                                     TAS2562_TDM_CFG2,
 197                                                     TAS2562_TDM_CFG2_RXLEN_MASK,
 198                                                     TAS2562_TDM_CFG2_RXLEN_32B);
 199                 break;
 200
 201         case 0:
 202                 /* Do not change slot width */
 203                 break;
 204         default:
 205                 dev_err(tas2562->dev, "slot width not supported");
 206                 ret = -EINVAL;
 207         }
 208
 209         if (ret < 0)
 210                 return ret;
 211
 212         ret = snd_soc_component_update_bits(component, TAS2562_TDM_CFG5,
 213                                             TAS2562_TDM_CFG5_VSNS_SLOT_MASK,
 214                                             tas2562->v_sense_slot);
 215         if (ret < 0)
 216                 return ret;
 217
 218         ret = snd_soc_component_update_bits(component, TAS2562_TDM_CFG6,
 219                                             TAS2562_TDM_CFG6_ISNS_SLOT_MASK,
 220                                             tas2562->i_sense_slot);
 221         if (ret < 0)
 222                 return ret;
 223
 224         return 0;
 225 }
 226
 227 static int tas2562_set_bitwidth(struct tas2562_data *tas2562, int bitwidth)
 228 {
 229         int ret;
 230         int val;
 231         int sense_en;
 232
 233         switch (bitwidth) {
 234         case SNDRV_PCM_FORMAT_S16_LE:
 235                 snd_soc_component_update_bits(tas2562->component,
 236                                               TAS2562_TDM_CFG2,
 237                                               TAS2562_TDM_CFG2_RXWLEN_MASK,
 238                                               TAS2562_TDM_CFG2_RXWLEN_16B);
 239                 break;
 240         case SNDRV_PCM_FORMAT_S24_LE:
 241                 snd_soc_component_update_bits(tas2562->component,
 242                                               TAS2562_TDM_CFG2,
 243                                               TAS2562_TDM_CFG2_RXWLEN_MASK,
 244                                               TAS2562_TDM_CFG2_RXWLEN_24B);
 245                 break;
 246         case SNDRV_PCM_FORMAT_S32_LE:
 247                 snd_soc_component_update_bits(tas2562->component,
 248                                               TAS2562_TDM_CFG2,
 249                                               TAS2562_TDM_CFG2_RXWLEN_MASK,
 250                                               TAS2562_TDM_CFG2_RXWLEN_32B);
 251                 break;
 252
 253         default:
 254                 dev_info(tas2562->dev, "Unsupported bitwidth format\n");
 255                 return -EINVAL;
 256         }
 257
 258         val = snd_soc_component_read(tas2562->component, TAS2562_PWR_CTRL);
 259         if (val < 0)
 260                 return val;
 261
 262         if (val & (1 << TAS2562_VSENSE_POWER_EN))
 263                 sense_en = 0;
 264         else
 265                 sense_en = TAS2562_TDM_CFG5_VSNS_EN;
 266
 267         ret = snd_soc_component_update_bits(tas2562->component, TAS2562_TDM_CFG5,
 268                 TAS2562_TDM_CFG5_VSNS_EN, sense_en);
 269         if (ret < 0)
 270                 return ret;
 271
 272         if (val & (1 << TAS2562_ISENSE_POWER_EN))
 273                 sense_en = 0;
 274         else
 275                 sense_en = TAS2562_TDM_CFG6_ISNS_EN;
 276
 277         ret = snd_soc_component_update_bits(tas2562->component, TAS2562_TDM_CFG6,
 278                 TAS2562_TDM_CFG6_ISNS_EN, sense_en);
 279         if (ret < 0)
 280                 return ret;
 281
 282         return 0;
 283 }
 284
 285 static int tas2562_hw_params(struct snd_pcm_substream *substream,
 286                              struct snd_pcm_hw_params *params,
 287                              struct snd_soc_dai *dai)
 288 {
 289         struct snd_soc_component *component = dai->component;
 290         struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
 291         int ret;
 292
 293         ret = tas2562_set_bitwidth(tas2562, params_format(params));
 294         if (ret) {
 295                 dev_err(tas2562->dev, "set bitwidth failed, %d\n", ret);
 296                 return ret;
 297         }
 298
 299         ret = tas2562_set_samplerate(tas2562, params_rate(params));
 300         if (ret)
 301                 dev_err(tas2562->dev, "set sample rate failed, %d\n", ret);
 302
 303         return ret;
 304 }
 305
 306 static int tas2562_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt)
 307 {
 308         struct snd_soc_component *component = dai->component;
 309         struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
 310         u8 asi_cfg_1 = 0;
 311         u8 tdm_rx_start_slot = 0;
 312         int ret;
 313
 314         switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
 315         case SND_SOC_DAIFMT_NB_NF:
 316                 asi_cfg_1 = 0;
 317                 break;
 318         case SND_SOC_DAIFMT_IB_NF:
 319                 asi_cfg_1 |= TAS2562_TDM_CFG1_RX_FALLING;
 320                 break;
 321         default:
 322                 dev_err(tas2562->dev, "ASI format Inverse is not found\n");
 323                 return -EINVAL;
 324         }
 325
 326         ret = snd_soc_component_update_bits(component, TAS2562_TDM_CFG1,
 327                                             TAS2562_TDM_CFG1_RX_EDGE_MASK,
 328                                             asi_cfg_1);
 329         if (ret < 0) {
 330                 dev_err(tas2562->dev, "Failed to set RX edge\n");
 331                 return ret;
 332         }
 333         switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
 334         case SND_SOC_DAIFMT_LEFT_J:
 335         case SND_SOC_DAIFMT_DSP_B:
 336                 tdm_rx_start_slot = 0;
 337                 break;
 338         case SND_SOC_DAIFMT_I2S:
 339         case SND_SOC_DAIFMT_DSP_A:
 340                 tdm_rx_start_slot = 1;
 341                 break;
 342         default:
 343                 dev_err(tas2562->dev,
 344                         "DAI Format is not found, fmt=0x%x\n", fmt);
 345                 return -EINVAL;
 346         }
 347
 348         ret = snd_soc_component_update_bits(component, TAS2562_TDM_CFG1,
 349                                 TAS2562_RX_OFF_MASK, (tdm_rx_start_slot << 1));
 350         if (ret < 0)
 351                 return ret;
 352
 353         return 0;
 354 }
 355
 356 static int tas2562_update_pwr_ctrl(struct tas2562_data *tas2562)
 357 {
 358         struct snd_soc_component *component = tas2562->component;
 359         unsigned int val;
 360         int ret;
 361
 362         if (tas2562->dac_powered)
 363                 val = tas2562->unmuted ?
 364                         TAS2562_ACTIVE : TAS2562_MUTE;
 365         else
 366                 val = TAS2562_SHUTDOWN;
 367
 368         ret = snd_soc_component_update_bits(component, TAS2562_PWR_CTRL,
 369                                             TAS2562_MODE_MASK, val);
 370         if (ret < 0)
 371                 return ret;
 372
 373         return 0;
 374 }
 375
 376 static int tas2562_mute(struct snd_soc_dai *dai, int mute, int direction)
 377 {
 378         struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(dai->component);
 379
 380         tas2562->unmuted = !mute;
 381         return tas2562_update_pwr_ctrl(tas2562);
 382 }
 383
 384 static int tas2562_codec_probe(struct snd_soc_component *component)
 385 {
 386         struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
 387
 388         tas2562->component = component;
 389
 390         if (tas2562->sdz_gpio)
 391                 gpiod_set_value_cansleep(tas2562->sdz_gpio, 1);
 392
 393         return 0;
 394 }
 395
 396 #ifdef CONFIG_PM
 397 static int tas2562_suspend(struct snd_soc_component *component)
 398 {
 399         struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
 400
 401         regcache_cache_only(tas2562->regmap, true);
 402         regcache_mark_dirty(tas2562->regmap);
 403
 404         if (tas2562->sdz_gpio)
 405                 gpiod_set_value_cansleep(tas2562->sdz_gpio, 0);
 406
 407         return 0;
 408 }
 409
 410 static int tas2562_resume(struct snd_soc_component *component)
 411 {
 412         struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
 413
 414         if (tas2562->sdz_gpio)
 415                 gpiod_set_value_cansleep(tas2562->sdz_gpio, 1);
 416
 417         regcache_cache_only(tas2562->regmap, false);
 418
 419         return regcache_sync(tas2562->regmap);
 420 }
 421 #else
 422 #define tas2562_suspend NULL
 423 #define tas2562_resume NULL
 424 #endif
 425
 426 static const char * const tas2562_ASI1_src[] = {
 427         "I2C offset", "Left", "Right", "LeftRightDiv2",
 428 };
 429
 430 static SOC_ENUM_SINGLE_DECL(tas2562_ASI1_src_enum, TAS2562_TDM_CFG2, 4,
 431                             tas2562_ASI1_src);
 432
 433 static const struct snd_kcontrol_new tas2562_asi1_mux =
 434         SOC_DAPM_ENUM("ASI1 Source", tas2562_ASI1_src_enum);
 435
 436 static int tas2562_dac_event(struct snd_soc_dapm_widget *w,
 437                              struct snd_kcontrol *kcontrol, int event)
 438 {
 439         struct snd_soc_component *component =
 440                                         snd_soc_dapm_to_component(w->dapm);
 441         struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
 442         int ret = 0;
 443
 444         switch (event) {
 445         case SND_SOC_DAPM_POST_PMU:
 446                 tas2562->dac_powered = true;
 447                 ret = tas2562_update_pwr_ctrl(tas2562);
 448                 break;
 449         case SND_SOC_DAPM_PRE_PMD:
 450                 tas2562->dac_powered = false;
 451                 ret = tas2562_update_pwr_ctrl(tas2562);
 452                 break;
 453         default:
 454                 dev_err(tas2562->dev, "Not supported evevt\n");
 455                 return -EINVAL;
 456         }
 457
 458         return ret;
 459 }
 460
 461 static int tas2562_volume_control_get(struct snd_kcontrol *kcontrol,
 462                                       struct snd_ctl_elem_value *ucontrol)
 463 {
 464         struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
 465         struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
 466
 467         ucontrol->value.integer.value[0] = tas2562->volume_lvl;
 468         return 0;
 469 }
 470
 471 static int tas2562_volume_control_put(struct snd_kcontrol *kcontrol,
 472                                       struct snd_ctl_elem_value *ucontrol)
 473 {
 474         struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
 475         struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component);
 476         int ret;
 477         u32 reg_val;
 478
 479         reg_val = float_vol_db_lookup[ucontrol->value.integer.value[0]/2];
 480         ret = snd_soc_component_write(component, TAS2562_DVC_CFG4,
 481                                       (reg_val & 0xff));
 482         if (ret)
 483                 return ret;
 484         ret = snd_soc_component_write(component, TAS2562_DVC_CFG3,
 485                                       ((reg_val >> 8) & 0xff));
 486         if (ret)
 487                 return ret;
 488         ret = snd_soc_component_write(component, TAS2562_DVC_CFG2,
 489                                       ((reg_val >> 16) & 0xff));
 490         if (ret)
 491                 return ret;
 492         ret = snd_soc_component_write(component, TAS2562_DVC_CFG1,
 493                                       ((reg_val >> 24) & 0xff));
 494         if (ret)
 495                 return ret;
 496
 497         tas2562->volume_lvl = ucontrol->value.integer.value[0];
 498
 499         return 0;
 500 }
 501
 502 /* Digital Volume Control. From 0 dB to -110 dB in 1 dB steps */
 503 static const DECLARE_TLV_DB_SCALE(dvc_tlv, -11000, 100, 0);
 504
 505 static DECLARE_TLV_DB_SCALE(tas2562_dac_tlv, 850, 50, 0);
 506
 507 static const struct snd_kcontrol_new isense_switch =
 508         SOC_DAPM_SINGLE("Switch", TAS2562_PWR_CTRL, TAS2562_ISENSE_POWER_EN,
 509                         1, 1);
 510
 511 static const struct snd_kcontrol_new vsense_switch =
 512         SOC_DAPM_SINGLE("Switch", TAS2562_PWR_CTRL, TAS2562_VSENSE_POWER_EN,
 513                         1, 1);
 514
 515 static const struct snd_kcontrol_new tas2562_snd_controls[] = {
 516         SOC_SINGLE_TLV("Amp Gain Volume", TAS2562_PB_CFG1, 1, 0x1c, 0,
 517                        tas2562_dac_tlv),
 518         {
 519                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 520                 .name = "Digital Volume Control",
 521                 .index = 0,
 522                 .tlv.p = dvc_tlv,
 523                 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | SNDRV_CTL_ELEM_ACCESS_READWRITE,
 524                 .info = snd_soc_info_volsw,
 525                 .get = tas2562_volume_control_get,
 526                 .put = tas2562_volume_control_put,
 527                 .private_value = SOC_SINGLE_VALUE(TAS2562_DVC_CFG1, 0, 110, 0, 0),
 528         },
 529 };
 530
 531 static const struct snd_soc_dapm_widget tas2110_dapm_widgets[] = {
 532         SND_SOC_DAPM_AIF_IN("ASI1", "ASI1 Playback", 0, SND_SOC_NOPM, 0, 0),
 533         SND_SOC_DAPM_MUX("ASI1 Sel", SND_SOC_NOPM, 0, 0, &tas2562_asi1_mux),
 534         SND_SOC_DAPM_DAC_E("DAC", NULL, SND_SOC_NOPM, 0, 0, tas2562_dac_event,
 535                            SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
 536         SND_SOC_DAPM_OUTPUT("OUT"),
 537 };
 538
 539 static const struct snd_soc_dapm_route tas2110_audio_map[] = {
 540         {"ASI1 Sel", "I2C offset", "ASI1"},
 541         {"ASI1 Sel", "Left", "ASI1"},
 542         {"ASI1 Sel", "Right", "ASI1"},
 543         {"ASI1 Sel", "LeftRightDiv2", "ASI1"},
 544         { "DAC", NULL, "ASI1 Sel" },
 545         { "OUT", NULL, "DAC" },
 546 };
 547
 548 static const struct snd_soc_component_driver soc_component_dev_tas2110 = {
 549         .probe                  = tas2562_codec_probe,
 550         .suspend                = tas2562_suspend,
 551         .resume                 = tas2562_resume,
 552         .controls               = tas2562_snd_controls,
 553         .num_controls           = ARRAY_SIZE(tas2562_snd_controls),
 554         .dapm_widgets           = tas2110_dapm_widgets,
 555         .num_dapm_widgets       = ARRAY_SIZE(tas2110_dapm_widgets),
 556         .dapm_routes            = tas2110_audio_map,
 557         .num_dapm_routes        = ARRAY_SIZE(tas2110_audio_map),
 558         .idle_bias_on           = 1,
 559         .use_pmdown_time        = 1,
 560         .endianness             = 1,
 561 };
 562
 563 static const struct snd_soc_dapm_widget tas2562_dapm_widgets[] = {
 564         SND_SOC_DAPM_AIF_IN("ASI1", "ASI1 Playback", 0, SND_SOC_NOPM, 0, 0),
 565         SND_SOC_DAPM_MUX("ASI1 Sel", SND_SOC_NOPM, 0, 0, &tas2562_asi1_mux),
 566         SND_SOC_DAPM_DAC_E("DAC", NULL, SND_SOC_NOPM, 0, 0, tas2562_dac_event,
 567                            SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
 568         SND_SOC_DAPM_SWITCH("ISENSE", TAS2562_PWR_CTRL, 3, 1, &isense_switch),
 569         SND_SOC_DAPM_SWITCH("VSENSE", TAS2562_PWR_CTRL, 2, 1, &vsense_switch),
 570         SND_SOC_DAPM_SIGGEN("VMON"),
 571         SND_SOC_DAPM_SIGGEN("IMON"),
 572         SND_SOC_DAPM_OUTPUT("OUT"),
 573 };
 574
 575 static const struct snd_soc_dapm_route tas2562_audio_map[] = {
 576         {"ASI1 Sel", "I2C offset", "ASI1"},
 577         {"ASI1 Sel", "Left", "ASI1"},
 578         {"ASI1 Sel", "Right", "ASI1"},
 579         {"ASI1 Sel", "LeftRightDiv2", "ASI1"},
 580         { "DAC", NULL, "ASI1 Sel" },
 581         { "OUT", NULL, "DAC" },
 582         {"ISENSE", "Switch", "IMON"},
 583         {"VSENSE", "Switch", "VMON"},
 584 };
 585
 586 static const struct snd_soc_component_driver soc_component_dev_tas2562 = {
 587         .probe                  = tas2562_codec_probe,
 588         .suspend                = tas2562_suspend,
 589         .resume                 = tas2562_resume,
 590         .controls               = tas2562_snd_controls,
 591         .num_controls           = ARRAY_SIZE(tas2562_snd_controls),
 592         .dapm_widgets           = tas2562_dapm_widgets,
 593         .num_dapm_widgets       = ARRAY_SIZE(tas2562_dapm_widgets),
 594         .dapm_routes            = tas2562_audio_map,
 595         .num_dapm_routes        = ARRAY_SIZE(tas2562_audio_map),
 596         .idle_bias_on           = 1,
 597         .use_pmdown_time        = 1,
 598         .endianness             = 1,
 599 };
 600
 601 static const struct snd_soc_dai_ops tas2562_speaker_dai_ops = {
 602         .hw_params      = tas2562_hw_params,
 603         .set_fmt        = tas2562_set_dai_fmt,
 604         .set_tdm_slot   = tas2562_set_dai_tdm_slot,
 605         .mute_stream    = tas2562_mute,
 606         .no_capture_mute = 1,
 607 };
 608
 609 static struct snd_soc_dai_driver tas2562_dai[] = {
 610         {
 611                 .name = "tas2562-amplifier",
 612                 .id = 0,
 613                 .playback = {
 614                         .stream_name    = "ASI1 Playback",
 615                         .channels_min   = 2,
 616                         .channels_max   = 2,
 617                         .rates      = SNDRV_PCM_RATE_8000_192000,
 618                         .formats    = TAS2562_FORMATS,
 619                 },
 620                 .capture = {
 621                         .stream_name    = "ASI1 Capture",
 622                         .channels_min   = 0,
 623                         .channels_max   = 2,
 624                         .rates          = SNDRV_PCM_RATE_8000_192000,
 625                         .formats        = TAS2562_FORMATS,
 626                 },
 627                 .ops = &tas2562_speaker_dai_ops,
 628         },
 629 };
 630
 631 static const struct regmap_range_cfg tas2562_ranges[] = {
 632         {
 633                 .range_min = 0,
 634                 .range_max = 5 * 128,
 635                 .selector_reg = TAS2562_PAGE_CTRL,
 636                 .selector_mask = 0xff,
 637                 .selector_shift = 0,
 638                 .window_start = 0,
 639                 .window_len = 128,
 640         },
 641 };
 642
 643 static const struct reg_default tas2562_reg_defaults[] = {
 644         { TAS2562_PAGE_CTRL, 0x00 },
 645         { TAS2562_SW_RESET, 0x00 },
 646         { TAS2562_PWR_CTRL, 0x0e },
 647         { TAS2562_PB_CFG1, 0x20 },
 648         { TAS2562_TDM_CFG0, 0x09 },
 649         { TAS2562_TDM_CFG1, 0x02 },
 650         { TAS2562_DVC_CFG1, 0x40 },
 651         { TAS2562_DVC_CFG2, 0x40 },
 652         { TAS2562_DVC_CFG3, 0x00 },
 653         { TAS2562_DVC_CFG4, 0x00 },
 654 };
 655
 656 static const struct regmap_config tas2562_regmap_config = {
 657         .reg_bits = 8,
 658         .val_bits = 8,
 659
 660         .max_register = 5 * 128,
 661         .cache_type = REGCACHE_RBTREE,
 662         .reg_defaults = tas2562_reg_defaults,
 663         .num_reg_defaults = ARRAY_SIZE(tas2562_reg_defaults),
 664         .ranges = tas2562_ranges,
 665         .num_ranges = ARRAY_SIZE(tas2562_ranges),
 666 };
 667
 668 static int tas2562_parse_dt(struct tas2562_data *tas2562)
 669 {
 670         struct device *dev = tas2562->dev;
 671         int ret = 0;
 672
 673         tas2562->sdz_gpio = devm_gpiod_get_optional(dev, "shutdown", GPIOD_OUT_HIGH);
 674         if (IS_ERR(tas2562->sdz_gpio)) {
 675                 if (PTR_ERR(tas2562->sdz_gpio) == -EPROBE_DEFER)
 676                         return -EPROBE_DEFER;
 677
 678                 tas2562->sdz_gpio = NULL;
 679         }
 680
 681         /*
 682          * The shut-down property is deprecated but needs to be checked for
 683          * backwards compatibility.
 684          */
 685         if (tas2562->sdz_gpio == NULL) {
 686                 tas2562->sdz_gpio = devm_gpiod_get_optional(dev, "shut-down",
 687                                                               GPIOD_OUT_HIGH);
 688                 if (IS_ERR(tas2562->sdz_gpio))
 689                         if (PTR_ERR(tas2562->sdz_gpio) == -EPROBE_DEFER)
 690                                 return -EPROBE_DEFER;
 691
 692                 tas2562->sdz_gpio = NULL;
 693         }
 694
 695         if (tas2562->model_id == TAS2110)
 696                 return ret;
 697
 698         ret = fwnode_property_read_u32(dev->fwnode, "ti,imon-slot-no",
 699                         &tas2562->i_sense_slot);
 700         if (ret) {
 701                 dev_err(dev, "Property %s is missing setting default slot\n",
 702                         "ti,imon-slot-no");
 703                 tas2562->i_sense_slot = 0;
 704         }
 705
 706
 707         ret = fwnode_property_read_u32(dev->fwnode, "ti,vmon-slot-no",
 708                         &tas2562->v_sense_slot);
 709         if (ret) {
 710                 dev_info(dev, "Property %s is missing setting default slot\n",
 711                         "ti,vmon-slot-no");
 712                 tas2562->v_sense_slot = 2;
 713         }
 714
 715         if (tas2562->v_sense_slot < tas2562->i_sense_slot) {
 716                 dev_err(dev, "Vsense slot must be greater than Isense slot\n");
 717                 return -EINVAL;
 718         }
 719
 720         return ret;
 721 }
 722
 723 static const struct i2c_device_id tas2562_id[] = {
 724         { "tas2562", TAS2562 },
 725         { "tas2563", TAS2563 },
 726         { "tas2564", TAS2564 },
 727         { "tas2110", TAS2110 },
 728         { }
 729 };
 730 MODULE_DEVICE_TABLE(i2c, tas2562_id);
 731
 732 static int tas2562_probe(struct i2c_client *client)
 733 {
 734         struct device *dev = &client->dev;
 735         struct tas2562_data *data;
 736         int ret;
 737         const struct i2c_device_id *id;
 738
 739         data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
 740         if (!data)
 741                 return -ENOMEM;
 742
 743         id = i2c_match_id(tas2562_id, client);
 744         data->client = client;
 745         data->dev = &client->dev;
 746         data->model_id = id->driver_data;
 747
 748         tas2562_parse_dt(data);
 749
 750         data->regmap = devm_regmap_init_i2c(client, &tas2562_regmap_config);
 751         if (IS_ERR(data->regmap)) {
 752                 ret = PTR_ERR(data->regmap);
 753                 dev_err(dev, "failed to allocate register map: %d\n", ret);
 754                 return ret;
 755         }
 756
 757         dev_set_drvdata(&client->dev, data);
 758
 759         if (data->model_id == TAS2110)
 760                 return devm_snd_soc_register_component(dev,
 761                                                        &soc_component_dev_tas2110,
 762                                                        tas2562_dai,
 763                                                        ARRAY_SIZE(tas2562_dai));
 764
 765         return devm_snd_soc_register_component(dev, &soc_component_dev_tas2562,
 766                                                tas2562_dai,
 767                                                ARRAY_SIZE(tas2562_dai));
 768
 769 }
 770
 771 #ifdef CONFIG_OF
 772 static const struct of_device_id tas2562_of_match[] = {
 773         { .compatible = "ti,tas2562", },
 774         { .compatible = "ti,tas2563", },
 775         { .compatible = "ti,tas2564", },
 776         { .compatible = "ti,tas2110", },
 777         { },
 778 };
 779 MODULE_DEVICE_TABLE(of, tas2562_of_match);
 780 #endif
 781
 782 static struct i2c_driver tas2562_i2c_driver = {
 783         .driver = {
 784                 .name = "tas2562",
 785                 .of_match_table = of_match_ptr(tas2562_of_match),
 786         },
 787         .probe_new = tas2562_probe,
 788         .id_table = tas2562_id,
 789 };
 790
 791 module_i2c_driver(tas2562_i2c_driver);
 792
 793 MODULE_AUTHOR("Dan Murphy <dmurphy@ti.com>");
 794 MODULE_DESCRIPTION("TAS2562 Audio amplifier driver");
 795 MODULE_LICENSE("GPL");