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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 | // SPDX-License-Identifier: GPL-2.0 // Copyright (c) 2019 MediaTek Inc. #include <linux/module.h> #include <linux/kernel.h> #include <linux/err.h> #include <linux/i2c.h> #include <linux/pm_runtime.h> #include <linux/delay.h> #include <sound/soc.h> #include <sound/tlv.h> #include <sound/pcm_params.h> #include "mt6660.h" struct reg_size_table { u32 addr; u8 size; }; static const struct reg_size_table mt6660_reg_size_table[] = { { MT6660_REG_HPF1_COEF, 4 }, { MT6660_REG_HPF2_COEF, 4 }, { MT6660_REG_TDM_CFG3, 2 }, { MT6660_REG_RESV17, 2 }, { MT6660_REG_RESV23, 2 }, { MT6660_REG_SIGMAX, 2 }, { MT6660_REG_DEVID, 2 }, { MT6660_REG_HCLIP_CTRL, 2 }, { MT6660_REG_DA_GAIN, 2 }, }; static int mt6660_get_reg_size(uint32_t addr) { int i; for (i = 0; i < ARRAY_SIZE(mt6660_reg_size_table); i++) { if (mt6660_reg_size_table[i].addr == addr) return mt6660_reg_size_table[i].size; } return 1; } static int mt6660_reg_write(void *context, unsigned int reg, unsigned int val) { struct mt6660_chip *chip = context; int size = mt6660_get_reg_size(reg); u8 reg_data[4]; int i, ret; for (i = 0; i < size; i++) reg_data[size - i - 1] = (val >> (8 * i)) & 0xff; ret = i2c_smbus_write_i2c_block_data(chip->i2c, reg, size, reg_data); return ret; } static int mt6660_reg_read(void *context, unsigned int reg, unsigned int *val) { struct mt6660_chip *chip = context; int size = mt6660_get_reg_size(reg); int i, ret; u8 data[4]; u32 reg_data = 0; ret = i2c_smbus_read_i2c_block_data(chip->i2c, reg, size, data); if (ret < 0) return ret; for (i = 0; i < size; i++) { reg_data <<= 8; reg_data |= data[i]; } *val = reg_data; return 0; } static const struct regmap_config mt6660_regmap_config = { .reg_bits = 8, .val_bits = 32, .reg_write = mt6660_reg_write, .reg_read = mt6660_reg_read, }; static int mt6660_codec_dac_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event) { if (event == SND_SOC_DAPM_POST_PMU) usleep_range(1000, 1100); return 0; } static int mt6660_codec_classd_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event) { struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm); int ret; switch (event) { case SND_SOC_DAPM_PRE_PMU: dev_dbg(component->dev, "%s: before classd turn on\n", __func__); /* config to adaptive mode */ ret = snd_soc_component_update_bits(component, MT6660_REG_BST_CTRL, 0x03, 0x03); if (ret < 0) { dev_err(component->dev, "config mode adaptive fail\n"); return ret; } break; case SND_SOC_DAPM_POST_PMU: /* voltage sensing enable */ ret = snd_soc_component_update_bits(component, MT6660_REG_RESV7, 0x04, 0x04); if (ret < 0) { dev_err(component->dev, "enable voltage sensing fail\n"); return ret; } dev_dbg(component->dev, "Amp on\n"); break; case SND_SOC_DAPM_PRE_PMD: dev_dbg(component->dev, "Amp off\n"); /* voltage sensing disable */ ret = snd_soc_component_update_bits(component, MT6660_REG_RESV7, 0x04, 0x00); if (ret < 0) { dev_err(component->dev, "disable voltage sensing fail\n"); return ret; } /* pop-noise improvement 1 */ ret = snd_soc_component_update_bits(component, MT6660_REG_RESV10, 0x10, 0x10); if (ret < 0) { dev_err(component->dev, "pop-noise improvement 1 fail\n"); return ret; } break; case SND_SOC_DAPM_POST_PMD: dev_dbg(component->dev, "%s: after classd turn off\n", __func__); /* pop-noise improvement 2 */ ret = snd_soc_component_update_bits(component, MT6660_REG_RESV10, 0x10, 0x00); if (ret < 0) { dev_err(component->dev, "pop-noise improvement 2 fail\n"); return ret; } /* config to off mode */ ret = snd_soc_component_update_bits(component, MT6660_REG_BST_CTRL, 0x03, 0x00); if (ret < 0) { dev_err(component->dev, "config mode off fail\n"); return ret; } break; } return 0; } static const struct snd_soc_dapm_widget mt6660_component_dapm_widgets[] = { SND_SOC_DAPM_DAC_E("DAC", NULL, MT6660_REG_PLL_CFG1, 0, 1, mt6660_codec_dac_event, SND_SOC_DAPM_POST_PMU), SND_SOC_DAPM_ADC("VI ADC", NULL, SND_SOC_NOPM, 0, 0), SND_SOC_DAPM_PGA("PGA", SND_SOC_NOPM, 0, 0, NULL, 0), SND_SOC_DAPM_OUT_DRV_E("ClassD", MT6660_REG_SYSTEM_CTRL, 2, 0, NULL, 0, mt6660_codec_classd_event, SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD), SND_SOC_DAPM_OUTPUT("OUTP"), SND_SOC_DAPM_OUTPUT("OUTN"), }; static const struct snd_soc_dapm_route mt6660_component_dapm_routes[] = { { "DAC", NULL, "aif_playback" }, { "PGA", NULL, "DAC" }, { "ClassD", NULL, "PGA" }, { "OUTP", NULL, "ClassD" }, { "OUTN", NULL, "ClassD" }, { "VI ADC", NULL, "ClassD" }, { "aif_capture", NULL, "VI ADC" }, }; static int mt6660_component_get_volsw(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) { struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); struct mt6660_chip *chip = (struct mt6660_chip *) snd_soc_component_get_drvdata(component); ucontrol->value.integer.value[0] = chip->chip_rev & 0x0f; return 0; } static const DECLARE_TLV_DB_SCALE(vol_ctl_tlv, -1155, 5, 0); static const struct snd_kcontrol_new mt6660_component_snd_controls[] = { SOC_SINGLE_TLV("Digital Volume", MT6660_REG_VOL_CTRL, 0, 255, 1, vol_ctl_tlv), SOC_SINGLE("Hard Clip Switch", MT6660_REG_HCLIP_CTRL, 8, 1, 0), SOC_SINGLE("Clip Switch", MT6660_REG_SPS_CTRL, 0, 1, 0), SOC_SINGLE("Boost Mode", MT6660_REG_BST_CTRL, 0, 3, 0), SOC_SINGLE("DRE Switch", MT6660_REG_DRE_CTRL, 0, 1, 0), SOC_SINGLE("DC Protect Switch", MT6660_REG_DC_PROTECT_CTRL, 3, 1, 0), SOC_SINGLE("Data Output Left Channel Selection", MT6660_REG_DATAO_SEL, 3, 7, 0), SOC_SINGLE("Data Output Right Channel Selection", MT6660_REG_DATAO_SEL, 0, 7, 0), SOC_SINGLE_EXT("T0 SEL", MT6660_REG_CALI_T0, 0, 7, 0, snd_soc_get_volsw, NULL), SOC_SINGLE_EXT("Chip Rev", MT6660_REG_DEVID, 8, 15, 0, mt6660_component_get_volsw, NULL), }; static int _mt6660_chip_power_on(struct mt6660_chip *chip, int on_off) { return regmap_write_bits(chip->regmap, MT6660_REG_SYSTEM_CTRL, 0x01, on_off ? 0x00 : 0x01); } struct reg_table { uint32_t addr; uint32_t mask; uint32_t val; }; static const struct reg_table mt6660_setting_table[] = { { 0x20, 0x80, 0x00 }, { 0x30, 0x01, 0x00 }, { 0x50, 0x1c, 0x04 }, { 0xB1, 0x0c, 0x00 }, { 0xD3, 0x03, 0x03 }, { 0xE0, 0x01, 0x00 }, { 0x98, 0x44, 0x04 }, { 0xB9, 0xff, 0x82 }, { 0xB7, 0x7777, 0x7273 }, { 0xB6, 0x07, 0x03 }, { 0x6B, 0xe0, 0x20 }, { 0x07, 0xff, 0x70 }, { 0xBB, 0xff, 0x20 }, { 0x69, 0xff, 0x40 }, { 0xBD, 0xffff, 0x17f8 }, { 0x70, 0xff, 0x15 }, { 0x7C, 0xff, 0x00 }, { 0x46, 0xff, 0x1d }, { 0x1A, 0xffffffff, 0x7fdb7ffe }, { 0x1B, 0xffffffff, 0x7fdb7ffe }, { 0x51, 0xff, 0x58 }, { 0xA2, 0xff, 0xce }, { 0x33, 0xffff, 0x7fff }, { 0x4C, 0xffff, 0x0116 }, { 0x16, 0x1800, 0x0800 }, { 0x68, 0x1f, 0x07 }, }; static int mt6660_component_setting(struct snd_soc_component *component) { struct mt6660_chip *chip = snd_soc_component_get_drvdata(component); int ret = 0; size_t i = 0; ret = _mt6660_chip_power_on(chip, 1); if (ret < 0) { dev_err(component->dev, "%s chip power on failed\n", __func__); return ret; } for (i = 0; i < ARRAY_SIZE(mt6660_setting_table); i++) { ret = snd_soc_component_update_bits(component, mt6660_setting_table[i].addr, mt6660_setting_table[i].mask, mt6660_setting_table[i].val); if (ret < 0) { dev_err(component->dev, "%s update 0x%02x failed\n", __func__, mt6660_setting_table[i].addr); return ret; } } ret = _mt6660_chip_power_on(chip, 0); if (ret < 0) { dev_err(component->dev, "%s chip power off failed\n", __func__); return ret; } return 0; } static int mt6660_component_probe(struct snd_soc_component *component) { struct mt6660_chip *chip = snd_soc_component_get_drvdata(component); int ret; dev_dbg(component->dev, "%s\n", __func__); snd_soc_component_init_regmap(component, chip->regmap); ret = mt6660_component_setting(component); if (ret < 0) dev_err(chip->dev, "mt6660 component setting failed\n"); return ret; } static void mt6660_component_remove(struct snd_soc_component *component) { dev_dbg(component->dev, "%s\n", __func__); snd_soc_component_exit_regmap(component); } static const struct snd_soc_component_driver mt6660_component_driver = { .probe = mt6660_component_probe, .remove = mt6660_component_remove, .controls = mt6660_component_snd_controls, .num_controls = ARRAY_SIZE(mt6660_component_snd_controls), .dapm_widgets = mt6660_component_dapm_widgets, .num_dapm_widgets = ARRAY_SIZE(mt6660_component_dapm_widgets), .dapm_routes = mt6660_component_dapm_routes, .num_dapm_routes = ARRAY_SIZE(mt6660_component_dapm_routes), .idle_bias_on = false, /* idle_bias_off = true */ }; static int mt6660_component_aif_hw_params(struct snd_pcm_substream *substream, struct snd_pcm_hw_params *hw_params, struct snd_soc_dai *dai) { int word_len = params_physical_width(hw_params); int aud_bit = params_width(hw_params); u16 reg_data = 0; int ret; dev_dbg(dai->dev, "%s: ++\n", __func__); dev_dbg(dai->dev, "format: 0x%08x\n", params_format(hw_params)); dev_dbg(dai->dev, "rate: 0x%08x\n", params_rate(hw_params)); dev_dbg(dai->dev, "word_len: %d, aud_bit: %d\n", word_len, aud_bit); if (word_len > 32 || word_len < 16) { dev_err(dai->dev, "not supported word length\n"); return -ENOTSUPP; } switch (aud_bit) { case 16: reg_data = 3; break; case 18: reg_data = 2; break; case 20: reg_data = 1; break; case 24: case 32: reg_data = 0; break; default: return -ENOTSUPP; } ret = snd_soc_component_update_bits(dai->component, MT6660_REG_SERIAL_CFG1, 0xc0, (reg_data << 6)); if (ret < 0) { dev_err(dai->dev, "config aud bit fail\n"); return ret; } ret = snd_soc_component_update_bits(dai->component, MT6660_REG_TDM_CFG3, 0x3f0, word_len << 4); if (ret < 0) { dev_err(dai->dev, "config word len fail\n"); return ret; } dev_dbg(dai->dev, "%s: --\n", __func__); return 0; } static const struct snd_soc_dai_ops mt6660_component_aif_ops = { .hw_params = mt6660_component_aif_hw_params, }; #define STUB_RATES SNDRV_PCM_RATE_8000_192000 #define STUB_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | \ SNDRV_PCM_FMTBIT_U16_LE | \ SNDRV_PCM_FMTBIT_S24_LE | \ SNDRV_PCM_FMTBIT_U24_LE | \ SNDRV_PCM_FMTBIT_S32_LE | \ SNDRV_PCM_FMTBIT_U32_LE) static struct snd_soc_dai_driver mt6660_codec_dai = { .name = "mt6660-aif", .playback = { .stream_name = "aif_playback", .channels_min = 1, .channels_max = 2, .rates = STUB_RATES, .formats = STUB_FORMATS, }, .capture = { .stream_name = "aif_capture", .channels_min = 1, .channels_max = 2, .rates = STUB_RATES, .formats = STUB_FORMATS, }, /* dai properties */ .symmetric_rates = 1, .symmetric_channels = 1, .symmetric_samplebits = 1, /* dai operations */ .ops = &mt6660_component_aif_ops, }; static int _mt6660_chip_id_check(struct mt6660_chip *chip) { int ret; unsigned int val; ret = regmap_read(chip->regmap, MT6660_REG_DEVID, &val); if (ret < 0) return ret; val &= 0x0ff0; if (val != 0x00e0 && val != 0x01e0) { dev_err(chip->dev, "%s id(%x) not match\n", __func__, val); return -ENODEV; } return 0; } static int _mt6660_chip_sw_reset(struct mt6660_chip *chip) { int ret; /* turn on main pll first, then trigger reset */ ret = regmap_write(chip->regmap, MT6660_REG_SYSTEM_CTRL, 0x00); if (ret < 0) return ret; ret = regmap_write(chip->regmap, MT6660_REG_SYSTEM_CTRL, 0x80); if (ret < 0) return ret; msleep(30); return 0; } static int _mt6660_read_chip_revision(struct mt6660_chip *chip) { int ret; unsigned int val; ret = regmap_read(chip->regmap, MT6660_REG_DEVID, &val); if (ret < 0) { dev_err(chip->dev, "get chip revision fail\n"); return ret; } chip->chip_rev = val&0xff; dev_info(chip->dev, "%s chip_rev = %x\n", __func__, chip->chip_rev); return 0; } static int mt6660_i2c_probe(struct i2c_client *client, const struct i2c_device_id *id) { struct mt6660_chip *chip = NULL; int ret; dev_dbg(&client->dev, "%s\n", __func__); chip = devm_kzalloc(&client->dev, sizeof(*chip), GFP_KERNEL); if (!chip) return -ENOMEM; chip->i2c = client; chip->dev = &client->dev; mutex_init(&chip->io_lock); i2c_set_clientdata(client, chip); chip->regmap = devm_regmap_init(&client->dev, NULL, chip, &mt6660_regmap_config); if (IS_ERR(chip->regmap)) { ret = PTR_ERR(chip->regmap); dev_err(&client->dev, "failed to initialise regmap: %d\n", ret); return ret; } /* chip reset first */ ret = _mt6660_chip_sw_reset(chip); if (ret < 0) { dev_err(chip->dev, "chip reset fail\n"); goto probe_fail; } /* chip power on */ ret = _mt6660_chip_power_on(chip, 1); if (ret < 0) { dev_err(chip->dev, "chip power on 2 fail\n"); goto probe_fail; } /* chip devid check */ ret = _mt6660_chip_id_check(chip); if (ret < 0) { dev_err(chip->dev, "chip id check fail\n"); goto probe_fail; } /* chip revision get */ ret = _mt6660_read_chip_revision(chip); if (ret < 0) { dev_err(chip->dev, "read chip revision fail\n"); goto probe_fail; } pm_runtime_set_active(chip->dev); pm_runtime_enable(chip->dev); ret = devm_snd_soc_register_component(chip->dev, &mt6660_component_driver, &mt6660_codec_dai, 1); if (ret) pm_runtime_disable(chip->dev); return ret; probe_fail: _mt6660_chip_power_on(chip, 0); mutex_destroy(&chip->io_lock); return ret; } static int mt6660_i2c_remove(struct i2c_client *client) { struct mt6660_chip *chip = i2c_get_clientdata(client); pm_runtime_disable(chip->dev); pm_runtime_set_suspended(chip->dev); mutex_destroy(&chip->io_lock); return 0; } static int __maybe_unused mt6660_i2c_runtime_suspend(struct device *dev) { struct mt6660_chip *chip = dev_get_drvdata(dev); dev_dbg(dev, "enter low power mode\n"); return regmap_update_bits(chip->regmap, MT6660_REG_SYSTEM_CTRL, 0x01, 0x01); } static int __maybe_unused mt6660_i2c_runtime_resume(struct device *dev) { struct mt6660_chip *chip = dev_get_drvdata(dev); dev_dbg(dev, "exit low power mode\n"); return regmap_update_bits(chip->regmap, MT6660_REG_SYSTEM_CTRL, 0x01, 0x00); } static const struct dev_pm_ops mt6660_dev_pm_ops = { SET_RUNTIME_PM_OPS(mt6660_i2c_runtime_suspend, mt6660_i2c_runtime_resume, NULL) }; static const struct of_device_id __maybe_unused mt6660_of_id[] = { { .compatible = "mediatek,mt6660",}, {}, }; MODULE_DEVICE_TABLE(of, mt6660_of_id); static const struct i2c_device_id mt6660_i2c_id[] = { {"mt6660", 0 }, {}, }; MODULE_DEVICE_TABLE(i2c, mt6660_i2c_id); static struct i2c_driver mt6660_i2c_driver = { .driver = { .name = "mt6660", .of_match_table = of_match_ptr(mt6660_of_id), .pm = &mt6660_dev_pm_ops, }, .probe = mt6660_i2c_probe, .remove = mt6660_i2c_remove, .id_table = mt6660_i2c_id, }; module_i2c_driver(mt6660_i2c_driver); MODULE_AUTHOR("Jeff Chang <jeff_chang@richtek.com>"); MODULE_DESCRIPTION("MT6660 SPKAMP Driver"); MODULE_LICENSE("GPL"); MODULE_VERSION("1.0.8_G"); |