1 // SPDX-License-Identifier: GPL-2.0 2 // 3 // Driver for the Texas Instruments TAS2562 CODEC 4 // Copyright (C) 2019 Texas Instruments Inc. 5 6 7 #include <linux/module.h> 8 #include <linux/errno.h> 9 #include <linux/device.h> 10 #include <linux/i2c.h> 11 #include <linux/pm_runtime.h> 12 #include <linux/regmap.h> 13 #include <linux/slab.h> 14 #include <linux/gpio/consumer.h> 15 #include <linux/regulator/consumer.h> 16 #include <linux/delay.h> 17 18 #include <sound/pcm.h> 19 #include <sound/pcm_params.h> 20 #include <sound/soc.h> 21 #include <sound/soc-dapm.h> 22 #include <sound/tlv.h> 23 24 #include "tas2562.h" 25 26 #define TAS2562_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S24_LE |\ 27 SNDRV_PCM_FORMAT_S32_LE) 28 29 /* DVC equation involves floating point math 30 * round(10^(volume in dB/20)*2^30) 31 * so create a lookup table for 2dB step 32 */ 33 static const unsigned int float_vol_db_lookup[] = { 34 0x00000d43, 0x000010b2, 0x00001505, 0x00001a67, 0x00002151, 35 0x000029f1, 0x000034cd, 0x00004279, 0x000053af, 0x0000695b, 36 0x0000695b, 0x0000a6fa, 0x0000d236, 0x000108a4, 0x00014d2a, 37 0x0001a36e, 0x00021008, 0x000298c0, 0x000344df, 0x00041d8f, 38 0x00052e5a, 0x000685c8, 0x00083621, 0x000a566d, 0x000d03a7, 39 0x0010624d, 0x0014a050, 0x0019f786, 0x0020b0bc, 0x0029279d, 40 0x0033cf8d, 0x004139d3, 0x00521d50, 0x00676044, 0x0082248a, 41 0x00a3d70a, 0x00ce4328, 0x0103ab3d, 0x0146e75d, 0x019b8c27, 42 0x02061b89, 0x028c423f, 0x03352529, 0x0409c2b0, 0x05156d68, 43 0x080e9f96, 0x0a24b062, 0x0cc509ab, 0x10137987, 0x143d1362, 44 0x197a967f, 0x2013739e, 0x28619ae9, 0x32d64617, 0x40000000 45 }; 46 47 struct tas2562_data { 48 struct snd_soc_component *component; 49 struct gpio_desc *sdz_gpio; 50 struct regmap *regmap; 51 struct device *dev; 52 struct i2c_client *client; 53 int v_sense_slot; 54 int i_sense_slot; 55 int volume_lvl; 56 int model_id; 57 }; 58 59 enum tas256x_model { 60 TAS2562, 61 TAS2563, 62 TAS2564, 63 TAS2110, 64 }; 65 66 static int tas2562_set_bias_level(struct snd_soc_component *component, 67 enum snd_soc_bias_level level) 68 { 69 struct tas2562_data *tas2562 = 70 snd_soc_component_get_drvdata(component); 71 72 switch (level) { 73 case SND_SOC_BIAS_ON: 74 snd_soc_component_update_bits(component, 75 TAS2562_PWR_CTRL, 76 TAS2562_MODE_MASK, TAS2562_ACTIVE); 77 break; 78 case SND_SOC_BIAS_STANDBY: 79 case SND_SOC_BIAS_PREPARE: 80 snd_soc_component_update_bits(component, 81 TAS2562_PWR_CTRL, 82 TAS2562_MODE_MASK, TAS2562_MUTE); 83 break; 84 case SND_SOC_BIAS_OFF: 85 snd_soc_component_update_bits(component, 86 TAS2562_PWR_CTRL, 87 TAS2562_MODE_MASK, TAS2562_SHUTDOWN); 88 break; 89 90 default: 91 dev_err(tas2562->dev, 92 "wrong power level setting %d\n", level); 93 return -EINVAL; 94 } 95 96 return 0; 97 } 98 99 static int tas2562_set_samplerate(struct tas2562_data *tas2562, int samplerate) 100 { 101 int samp_rate; 102 int ramp_rate; 103 104 switch (samplerate) { 105 case 7350: 106 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1; 107 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_7305_8KHZ; 108 break; 109 case 8000: 110 ramp_rate = 0; 111 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_7305_8KHZ; 112 break; 113 case 14700: 114 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1; 115 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_14_7_16KHZ; 116 break; 117 case 16000: 118 ramp_rate = 0; 119 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_14_7_16KHZ; 120 break; 121 case 22050: 122 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1; 123 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_22_05_24KHZ; 124 break; 125 case 24000: 126 ramp_rate = 0; 127 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_22_05_24KHZ; 128 break; 129 case 29400: 130 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1; 131 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_29_4_32KHZ; 132 break; 133 case 32000: 134 ramp_rate = 0; 135 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_29_4_32KHZ; 136 break; 137 case 44100: 138 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1; 139 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_44_1_48KHZ; 140 break; 141 case 48000: 142 ramp_rate = 0; 143 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_44_1_48KHZ; 144 break; 145 case 88200: 146 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1; 147 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_88_2_96KHZ; 148 break; 149 case 96000: 150 ramp_rate = 0; 151 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_88_2_96KHZ; 152 break; 153 case 176400: 154 ramp_rate = TAS2562_TDM_CFG0_RAMPRATE_44_1; 155 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_176_4_192KHZ; 156 break; 157 case 192000: 158 ramp_rate = 0; 159 samp_rate = TAS2562_TDM_CFG0_SAMPRATE_176_4_192KHZ; 160 break; 161 default: 162 dev_info(tas2562->dev, "%s, unsupported sample rate, %d\n", 163 __func__, samplerate); 164 return -EINVAL; 165 } 166 167 snd_soc_component_update_bits(tas2562->component, TAS2562_TDM_CFG0, 168 TAS2562_TDM_CFG0_RAMPRATE_MASK, ramp_rate); 169 snd_soc_component_update_bits(tas2562->component, TAS2562_TDM_CFG0, 170 TAS2562_TDM_CFG0_SAMPRATE_MASK, samp_rate); 171 172 return 0; 173 } 174 175 static int tas2562_set_dai_tdm_slot(struct snd_soc_dai *dai, 176 unsigned int tx_mask, unsigned int rx_mask, 177 int slots, int slot_width) 178 { 179 struct snd_soc_component *component = dai->component; 180 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component); 181 int left_slot, right_slot; 182 int slots_cfg; 183 int ret; 184 185 if (!tx_mask) { 186 dev_err(component->dev, "tx masks must not be 0\n"); 187 return -EINVAL; 188 } 189 190 if (slots == 1) { 191 if (tx_mask != 1) 192 return -EINVAL; 193 194 left_slot = 0; 195 right_slot = 0; 196 } else { 197 left_slot = __ffs(tx_mask); 198 tx_mask &= ~(1 << left_slot); 199 if (tx_mask == 0) { 200 right_slot = left_slot; 201 } else { 202 right_slot = __ffs(tx_mask); 203 tx_mask &= ~(1 << right_slot); 204 } 205 } 206 207 slots_cfg = (right_slot << TAS2562_RIGHT_SLOT_SHIFT) | left_slot; 208 209 ret = snd_soc_component_write(component, TAS2562_TDM_CFG3, slots_cfg); 210 if (ret < 0) 211 return ret; 212 213 switch (slot_width) { 214 case 16: 215 ret = snd_soc_component_update_bits(component, 216 TAS2562_TDM_CFG2, 217 TAS2562_TDM_CFG2_RXLEN_MASK, 218 TAS2562_TDM_CFG2_RXLEN_16B); 219 break; 220 case 24: 221 ret = snd_soc_component_update_bits(component, 222 TAS2562_TDM_CFG2, 223 TAS2562_TDM_CFG2_RXLEN_MASK, 224 TAS2562_TDM_CFG2_RXLEN_24B); 225 break; 226 case 32: 227 ret = snd_soc_component_update_bits(component, 228 TAS2562_TDM_CFG2, 229 TAS2562_TDM_CFG2_RXLEN_MASK, 230 TAS2562_TDM_CFG2_RXLEN_32B); 231 break; 232 233 case 0: 234 /* Do not change slot width */ 235 break; 236 default: 237 dev_err(tas2562->dev, "slot width not supported"); 238 ret = -EINVAL; 239 } 240 241 if (ret < 0) 242 return ret; 243 244 ret = snd_soc_component_update_bits(component, TAS2562_TDM_CFG5, 245 TAS2562_TDM_CFG5_VSNS_SLOT_MASK, 246 tas2562->v_sense_slot); 247 if (ret < 0) 248 return ret; 249 250 ret = snd_soc_component_update_bits(component, TAS2562_TDM_CFG6, 251 TAS2562_TDM_CFG6_ISNS_SLOT_MASK, 252 tas2562->i_sense_slot); 253 if (ret < 0) 254 return ret; 255 256 return 0; 257 } 258 259 static int tas2562_set_bitwidth(struct tas2562_data *tas2562, int bitwidth) 260 { 261 int ret; 262 int val; 263 int sense_en; 264 265 switch (bitwidth) { 266 case SNDRV_PCM_FORMAT_S16_LE: 267 snd_soc_component_update_bits(tas2562->component, 268 TAS2562_TDM_CFG2, 269 TAS2562_TDM_CFG2_RXWLEN_MASK, 270 TAS2562_TDM_CFG2_RXWLEN_16B); 271 break; 272 case SNDRV_PCM_FORMAT_S24_LE: 273 snd_soc_component_update_bits(tas2562->component, 274 TAS2562_TDM_CFG2, 275 TAS2562_TDM_CFG2_RXWLEN_MASK, 276 TAS2562_TDM_CFG2_RXWLEN_24B); 277 break; 278 case SNDRV_PCM_FORMAT_S32_LE: 279 snd_soc_component_update_bits(tas2562->component, 280 TAS2562_TDM_CFG2, 281 TAS2562_TDM_CFG2_RXWLEN_MASK, 282 TAS2562_TDM_CFG2_RXWLEN_32B); 283 break; 284 285 default: 286 dev_info(tas2562->dev, "Unsupported bitwidth format\n"); 287 return -EINVAL; 288 } 289 290 val = snd_soc_component_read(tas2562->component, TAS2562_PWR_CTRL); 291 if (val < 0) 292 return val; 293 294 if (val & (1 << TAS2562_VSENSE_POWER_EN)) 295 sense_en = 0; 296 else 297 sense_en = TAS2562_TDM_CFG5_VSNS_EN; 298 299 ret = snd_soc_component_update_bits(tas2562->component, TAS2562_TDM_CFG5, 300 TAS2562_TDM_CFG5_VSNS_EN, sense_en); 301 if (ret < 0) 302 return ret; 303 304 if (val & (1 << TAS2562_ISENSE_POWER_EN)) 305 sense_en = 0; 306 else 307 sense_en = TAS2562_TDM_CFG6_ISNS_EN; 308 309 ret = snd_soc_component_update_bits(tas2562->component, TAS2562_TDM_CFG6, 310 TAS2562_TDM_CFG6_ISNS_EN, sense_en); 311 if (ret < 0) 312 return ret; 313 314 return 0; 315 } 316 317 static int tas2562_hw_params(struct snd_pcm_substream *substream, 318 struct snd_pcm_hw_params *params, 319 struct snd_soc_dai *dai) 320 { 321 struct snd_soc_component *component = dai->component; 322 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component); 323 int ret; 324 325 ret = tas2562_set_bitwidth(tas2562, params_format(params)); 326 if (ret) { 327 dev_err(tas2562->dev, "set bitwidth failed, %d\n", ret); 328 return ret; 329 } 330 331 ret = tas2562_set_samplerate(tas2562, params_rate(params)); 332 if (ret) 333 dev_err(tas2562->dev, "set sample rate failed, %d\n", ret); 334 335 return ret; 336 } 337 338 static int tas2562_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt) 339 { 340 struct snd_soc_component *component = dai->component; 341 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component); 342 u8 asi_cfg_1 = 0; 343 u8 tdm_rx_start_slot = 0; 344 int ret; 345 346 switch (fmt & SND_SOC_DAIFMT_INV_MASK) { 347 case SND_SOC_DAIFMT_NB_NF: 348 asi_cfg_1 = 0; 349 break; 350 case SND_SOC_DAIFMT_IB_NF: 351 asi_cfg_1 |= TAS2562_TDM_CFG1_RX_FALLING; 352 break; 353 default: 354 dev_err(tas2562->dev, "ASI format Inverse is not found\n"); 355 return -EINVAL; 356 } 357 358 ret = snd_soc_component_update_bits(component, TAS2562_TDM_CFG1, 359 TAS2562_TDM_CFG1_RX_EDGE_MASK, 360 asi_cfg_1); 361 if (ret < 0) { 362 dev_err(tas2562->dev, "Failed to set RX edge\n"); 363 return ret; 364 } 365 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { 366 case SND_SOC_DAIFMT_LEFT_J: 367 case SND_SOC_DAIFMT_DSP_B: 368 tdm_rx_start_slot = 0; 369 break; 370 case SND_SOC_DAIFMT_I2S: 371 case SND_SOC_DAIFMT_DSP_A: 372 tdm_rx_start_slot = 1; 373 break; 374 default: 375 dev_err(tas2562->dev, 376 "DAI Format is not found, fmt=0x%x\n", fmt); 377 return -EINVAL; 378 } 379 380 ret = snd_soc_component_update_bits(component, TAS2562_TDM_CFG1, 381 TAS2562_RX_OFF_MASK, (tdm_rx_start_slot << 1)); 382 if (ret < 0) 383 return ret; 384 385 return 0; 386 } 387 388 static int tas2562_mute(struct snd_soc_dai *dai, int mute, int direction) 389 { 390 struct snd_soc_component *component = dai->component; 391 392 return snd_soc_component_update_bits(component, TAS2562_PWR_CTRL, 393 TAS2562_MODE_MASK, 394 mute ? TAS2562_MUTE : 0); 395 } 396 397 static int tas2562_codec_probe(struct snd_soc_component *component) 398 { 399 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component); 400 int ret; 401 402 tas2562->component = component; 403 404 if (tas2562->sdz_gpio) 405 gpiod_set_value_cansleep(tas2562->sdz_gpio, 1); 406 407 ret = snd_soc_component_update_bits(component, TAS2562_PWR_CTRL, 408 TAS2562_MODE_MASK, TAS2562_MUTE); 409 if (ret < 0) 410 return ret; 411 412 return 0; 413 } 414 415 #ifdef CONFIG_PM 416 static int tas2562_suspend(struct snd_soc_component *component) 417 { 418 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component); 419 420 regcache_cache_only(tas2562->regmap, true); 421 regcache_mark_dirty(tas2562->regmap); 422 423 if (tas2562->sdz_gpio) 424 gpiod_set_value_cansleep(tas2562->sdz_gpio, 0); 425 426 return 0; 427 } 428 429 static int tas2562_resume(struct snd_soc_component *component) 430 { 431 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component); 432 433 if (tas2562->sdz_gpio) 434 gpiod_set_value_cansleep(tas2562->sdz_gpio, 1); 435 436 regcache_cache_only(tas2562->regmap, false); 437 438 return regcache_sync(tas2562->regmap); 439 } 440 #else 441 #define tas2562_suspend NULL 442 #define tas2562_resume NULL 443 #endif 444 445 static const char * const tas2562_ASI1_src[] = { 446 "I2C offset", "Left", "Right", "LeftRightDiv2", 447 }; 448 449 static SOC_ENUM_SINGLE_DECL(tas2562_ASI1_src_enum, TAS2562_TDM_CFG2, 4, 450 tas2562_ASI1_src); 451 452 static const struct snd_kcontrol_new tas2562_asi1_mux = 453 SOC_DAPM_ENUM("ASI1 Source", tas2562_ASI1_src_enum); 454 455 static int tas2562_dac_event(struct snd_soc_dapm_widget *w, 456 struct snd_kcontrol *kcontrol, int event) 457 { 458 struct snd_soc_component *component = 459 snd_soc_dapm_to_component(w->dapm); 460 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component); 461 int ret; 462 463 switch (event) { 464 case SND_SOC_DAPM_POST_PMU: 465 ret = snd_soc_component_update_bits(component, 466 TAS2562_PWR_CTRL, 467 TAS2562_MODE_MASK, 468 TAS2562_MUTE); 469 if (ret) 470 goto end; 471 break; 472 case SND_SOC_DAPM_PRE_PMD: 473 ret = snd_soc_component_update_bits(component, 474 TAS2562_PWR_CTRL, 475 TAS2562_MODE_MASK, 476 TAS2562_SHUTDOWN); 477 if (ret) 478 goto end; 479 break; 480 default: 481 dev_err(tas2562->dev, "Not supported evevt\n"); 482 return -EINVAL; 483 } 484 485 end: 486 if (ret < 0) 487 return ret; 488 489 return 0; 490 } 491 492 static int tas2562_volume_control_get(struct snd_kcontrol *kcontrol, 493 struct snd_ctl_elem_value *ucontrol) 494 { 495 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); 496 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component); 497 498 ucontrol->value.integer.value[0] = tas2562->volume_lvl; 499 return 0; 500 } 501 502 static int tas2562_volume_control_put(struct snd_kcontrol *kcontrol, 503 struct snd_ctl_elem_value *ucontrol) 504 { 505 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); 506 struct tas2562_data *tas2562 = snd_soc_component_get_drvdata(component); 507 int ret; 508 u32 reg_val; 509 510 reg_val = float_vol_db_lookup[ucontrol->value.integer.value[0]/2]; 511 ret = snd_soc_component_write(component, TAS2562_DVC_CFG4, 512 (reg_val & 0xff)); 513 if (ret) 514 return ret; 515 ret = snd_soc_component_write(component, TAS2562_DVC_CFG3, 516 ((reg_val >> 8) & 0xff)); 517 if (ret) 518 return ret; 519 ret = snd_soc_component_write(component, TAS2562_DVC_CFG2, 520 ((reg_val >> 16) & 0xff)); 521 if (ret) 522 return ret; 523 ret = snd_soc_component_write(component, TAS2562_DVC_CFG1, 524 ((reg_val >> 24) & 0xff)); 525 if (ret) 526 return ret; 527 528 tas2562->volume_lvl = ucontrol->value.integer.value[0]; 529 530 return ret; 531 } 532 533 /* Digital Volume Control. From 0 dB to -110 dB in 1 dB steps */ 534 static const DECLARE_TLV_DB_SCALE(dvc_tlv, -11000, 100, 0); 535 536 static DECLARE_TLV_DB_SCALE(tas2562_dac_tlv, 850, 50, 0); 537 538 static const struct snd_kcontrol_new isense_switch = 539 SOC_DAPM_SINGLE("Switch", TAS2562_PWR_CTRL, TAS2562_ISENSE_POWER_EN, 540 1, 1); 541 542 static const struct snd_kcontrol_new vsense_switch = 543 SOC_DAPM_SINGLE("Switch", TAS2562_PWR_CTRL, TAS2562_VSENSE_POWER_EN, 544 1, 1); 545 546 static const struct snd_kcontrol_new tas2562_snd_controls[] = { 547 SOC_SINGLE_TLV("Amp Gain Volume", TAS2562_PB_CFG1, 1, 0x1c, 0, 548 tas2562_dac_tlv), 549 { 550 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 551 .name = "Digital Volume Control", 552 .index = 0, 553 .tlv.p = dvc_tlv, 554 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | SNDRV_CTL_ELEM_ACCESS_READWRITE, 555 .info = snd_soc_info_volsw, 556 .get = tas2562_volume_control_get, 557 .put = tas2562_volume_control_put, 558 .private_value = SOC_SINGLE_VALUE(TAS2562_DVC_CFG1, 0, 110, 0, 0), 559 }, 560 }; 561 562 static const struct snd_soc_dapm_widget tas2110_dapm_widgets[] = { 563 SND_SOC_DAPM_AIF_IN("ASI1", "ASI1 Playback", 0, SND_SOC_NOPM, 0, 0), 564 SND_SOC_DAPM_MUX("ASI1 Sel", SND_SOC_NOPM, 0, 0, &tas2562_asi1_mux), 565 SND_SOC_DAPM_DAC_E("DAC", NULL, SND_SOC_NOPM, 0, 0, tas2562_dac_event, 566 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD), 567 SND_SOC_DAPM_OUTPUT("OUT"), 568 }; 569 570 static const struct snd_soc_dapm_route tas2110_audio_map[] = { 571 {"ASI1 Sel", "I2C offset", "ASI1"}, 572 {"ASI1 Sel", "Left", "ASI1"}, 573 {"ASI1 Sel", "Right", "ASI1"}, 574 {"ASI1 Sel", "LeftRightDiv2", "ASI1"}, 575 { "DAC", NULL, "ASI1 Sel" }, 576 { "OUT", NULL, "DAC" }, 577 }; 578 579 static const struct snd_soc_component_driver soc_component_dev_tas2110 = { 580 .probe = tas2562_codec_probe, 581 .suspend = tas2562_suspend, 582 .resume = tas2562_resume, 583 .set_bias_level = tas2562_set_bias_level, 584 .controls = tas2562_snd_controls, 585 .num_controls = ARRAY_SIZE(tas2562_snd_controls), 586 .dapm_widgets = tas2110_dapm_widgets, 587 .num_dapm_widgets = ARRAY_SIZE(tas2110_dapm_widgets), 588 .dapm_routes = tas2110_audio_map, 589 .num_dapm_routes = ARRAY_SIZE(tas2110_audio_map), 590 .idle_bias_on = 1, 591 .use_pmdown_time = 1, 592 .endianness = 1, 593 .non_legacy_dai_naming = 1, 594 }; 595 596 static const struct snd_soc_dapm_widget tas2562_dapm_widgets[] = { 597 SND_SOC_DAPM_AIF_IN("ASI1", "ASI1 Playback", 0, SND_SOC_NOPM, 0, 0), 598 SND_SOC_DAPM_MUX("ASI1 Sel", SND_SOC_NOPM, 0, 0, &tas2562_asi1_mux), 599 SND_SOC_DAPM_DAC_E("DAC", NULL, SND_SOC_NOPM, 0, 0, tas2562_dac_event, 600 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD), 601 SND_SOC_DAPM_SWITCH("ISENSE", TAS2562_PWR_CTRL, 3, 1, &isense_switch), 602 SND_SOC_DAPM_SWITCH("VSENSE", TAS2562_PWR_CTRL, 2, 1, &vsense_switch), 603 SND_SOC_DAPM_SIGGEN("VMON"), 604 SND_SOC_DAPM_SIGGEN("IMON"), 605 SND_SOC_DAPM_OUTPUT("OUT"), 606 }; 607 608 static const struct snd_soc_dapm_route tas2562_audio_map[] = { 609 {"ASI1 Sel", "I2C offset", "ASI1"}, 610 {"ASI1 Sel", "Left", "ASI1"}, 611 {"ASI1 Sel", "Right", "ASI1"}, 612 {"ASI1 Sel", "LeftRightDiv2", "ASI1"}, 613 { "DAC", NULL, "ASI1 Sel" }, 614 { "OUT", NULL, "DAC" }, 615 {"ISENSE", "Switch", "IMON"}, 616 {"VSENSE", "Switch", "VMON"}, 617 }; 618 619 static const struct snd_soc_component_driver soc_component_dev_tas2562 = { 620 .probe = tas2562_codec_probe, 621 .suspend = tas2562_suspend, 622 .resume = tas2562_resume, 623 .set_bias_level = tas2562_set_bias_level, 624 .controls = tas2562_snd_controls, 625 .num_controls = ARRAY_SIZE(tas2562_snd_controls), 626 .dapm_widgets = tas2562_dapm_widgets, 627 .num_dapm_widgets = ARRAY_SIZE(tas2562_dapm_widgets), 628 .dapm_routes = tas2562_audio_map, 629 .num_dapm_routes = ARRAY_SIZE(tas2562_audio_map), 630 .idle_bias_on = 1, 631 .use_pmdown_time = 1, 632 .endianness = 1, 633 .non_legacy_dai_naming = 1, 634 }; 635 636 static const struct snd_soc_dai_ops tas2562_speaker_dai_ops = { 637 .hw_params = tas2562_hw_params, 638 .set_fmt = tas2562_set_dai_fmt, 639 .set_tdm_slot = tas2562_set_dai_tdm_slot, 640 .mute_stream = tas2562_mute, 641 .no_capture_mute = 1, 642 }; 643 644 static struct snd_soc_dai_driver tas2562_dai[] = { 645 { 646 .name = "tas2562-amplifier", 647 .id = 0, 648 .playback = { 649 .stream_name = "ASI1 Playback", 650 .channels_min = 2, 651 .channels_max = 2, 652 .rates = SNDRV_PCM_RATE_8000_192000, 653 .formats = TAS2562_FORMATS, 654 }, 655 .capture = { 656 .stream_name = "ASI1 Capture", 657 .channels_min = 0, 658 .channels_max = 2, 659 .rates = SNDRV_PCM_RATE_8000_192000, 660 .formats = TAS2562_FORMATS, 661 }, 662 .ops = &tas2562_speaker_dai_ops, 663 }, 664 }; 665 666 static const struct regmap_range_cfg tas2562_ranges[] = { 667 { 668 .range_min = 0, 669 .range_max = 5 * 128, 670 .selector_reg = TAS2562_PAGE_CTRL, 671 .selector_mask = 0xff, 672 .selector_shift = 0, 673 .window_start = 0, 674 .window_len = 128, 675 }, 676 }; 677 678 static const struct reg_default tas2562_reg_defaults[] = { 679 { TAS2562_PAGE_CTRL, 0x00 }, 680 { TAS2562_SW_RESET, 0x00 }, 681 { TAS2562_PWR_CTRL, 0x0e }, 682 { TAS2562_PB_CFG1, 0x20 }, 683 { TAS2562_TDM_CFG0, 0x09 }, 684 { TAS2562_TDM_CFG1, 0x02 }, 685 { TAS2562_DVC_CFG1, 0x40 }, 686 { TAS2562_DVC_CFG2, 0x40 }, 687 { TAS2562_DVC_CFG3, 0x00 }, 688 { TAS2562_DVC_CFG4, 0x00 }, 689 }; 690 691 static const struct regmap_config tas2562_regmap_config = { 692 .reg_bits = 8, 693 .val_bits = 8, 694 695 .max_register = 5 * 128, 696 .cache_type = REGCACHE_RBTREE, 697 .reg_defaults = tas2562_reg_defaults, 698 .num_reg_defaults = ARRAY_SIZE(tas2562_reg_defaults), 699 .ranges = tas2562_ranges, 700 .num_ranges = ARRAY_SIZE(tas2562_ranges), 701 }; 702 703 static int tas2562_parse_dt(struct tas2562_data *tas2562) 704 { 705 struct device *dev = tas2562->dev; 706 int ret = 0; 707 708 tas2562->sdz_gpio = devm_gpiod_get_optional(dev, "shutdown", GPIOD_OUT_HIGH); 709 if (IS_ERR(tas2562->sdz_gpio)) { 710 if (PTR_ERR(tas2562->sdz_gpio) == -EPROBE_DEFER) 711 return -EPROBE_DEFER; 712 713 tas2562->sdz_gpio = NULL; 714 } 715 716 /* 717 * The shut-down property is deprecated but needs to be checked for 718 * backwards compatibility. 719 */ 720 if (tas2562->sdz_gpio == NULL) { 721 tas2562->sdz_gpio = devm_gpiod_get_optional(dev, "shut-down", 722 GPIOD_OUT_HIGH); 723 if (IS_ERR(tas2562->sdz_gpio)) 724 if (PTR_ERR(tas2562->sdz_gpio) == -EPROBE_DEFER) 725 return -EPROBE_DEFER; 726 727 tas2562->sdz_gpio = NULL; 728 } 729 730 if (tas2562->model_id == TAS2110) 731 return ret; 732 733 ret = fwnode_property_read_u32(dev->fwnode, "ti,imon-slot-no", 734 &tas2562->i_sense_slot); 735 if (ret) { 736 dev_err(dev, "Property %s is missing setting default slot\n", 737 "ti,imon-slot-no"); 738 tas2562->i_sense_slot = 0; 739 } 740 741 742 ret = fwnode_property_read_u32(dev->fwnode, "ti,vmon-slot-no", 743 &tas2562->v_sense_slot); 744 if (ret) { 745 dev_info(dev, "Property %s is missing setting default slot\n", 746 "ti,vmon-slot-no"); 747 tas2562->v_sense_slot = 2; 748 } 749 750 if (tas2562->v_sense_slot < tas2562->i_sense_slot) { 751 dev_err(dev, "Vsense slot must be greater than Isense slot\n"); 752 return -EINVAL; 753 } 754 755 return ret; 756 } 757 758 static int tas2562_probe(struct i2c_client *client, 759 const struct i2c_device_id *id) 760 { 761 struct device *dev = &client->dev; 762 struct tas2562_data *data; 763 int ret; 764 765 data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL); 766 if (!data) 767 return -ENOMEM; 768 769 data->client = client; 770 data->dev = &client->dev; 771 data->model_id = id->driver_data; 772 773 tas2562_parse_dt(data); 774 775 data->regmap = devm_regmap_init_i2c(client, &tas2562_regmap_config); 776 if (IS_ERR(data->regmap)) { 777 ret = PTR_ERR(data->regmap); 778 dev_err(dev, "failed to allocate register map: %d\n", ret); 779 return ret; 780 } 781 782 dev_set_drvdata(&client->dev, data); 783 784 if (data->model_id == TAS2110) 785 return devm_snd_soc_register_component(dev, 786 &soc_component_dev_tas2110, 787 tas2562_dai, 788 ARRAY_SIZE(tas2562_dai)); 789 790 return devm_snd_soc_register_component(dev, &soc_component_dev_tas2562, 791 tas2562_dai, 792 ARRAY_SIZE(tas2562_dai)); 793 794 } 795 796 static const struct i2c_device_id tas2562_id[] = { 797 { "tas2562", TAS2562 }, 798 { "tas2563", TAS2563 }, 799 { "tas2564", TAS2564 }, 800 { "tas2110", TAS2110 }, 801 { } 802 }; 803 MODULE_DEVICE_TABLE(i2c, tas2562_id); 804 805 static const struct of_device_id tas2562_of_match[] = { 806 { .compatible = "ti,tas2562", }, 807 { .compatible = "ti,tas2563", }, 808 { .compatible = "ti,tas2564", }, 809 { .compatible = "ti,tas2110", }, 810 { }, 811 }; 812 MODULE_DEVICE_TABLE(of, tas2562_of_match); 813 814 static struct i2c_driver tas2562_i2c_driver = { 815 .driver = { 816 .name = "tas2562", 817 .of_match_table = of_match_ptr(tas2562_of_match), 818 }, 819 .probe = tas2562_probe, 820 .id_table = tas2562_id, 821 }; 822 823 module_i2c_driver(tas2562_i2c_driver); 824 825 MODULE_AUTHOR("Dan Murphy <dmurphy@ti.com>"); 826 MODULE_DESCRIPTION("TAS2562 Audio amplifier driver"); 827 MODULE_LICENSE("GPL"); 828