1 /* 2 * TAS571x amplifier audio driver 3 * 4 * Copyright (C) 2015 Google, Inc. 5 * Copyright (c) 2013 Daniel Mack <zonque@gmail.com> 6 * 7 * TAS5721 support: 8 * Copyright (C) 2016 Petr Kulhavy, Barix AG <petr@barix.com> 9 * 10 * TAS5707 support: 11 * Copyright (C) 2018 Jerome Brunet, Baylibre SAS <jbrunet@baylibre.com> 12 * 13 * This program is free software; you can redistribute it and/or modify 14 * it under the terms of the GNU General Public License as published by 15 * the Free Software Foundation; either version 2 of the License, or 16 * (at your option) any later version. 17 */ 18 19 #include <linux/clk.h> 20 #include <linux/delay.h> 21 #include <linux/device.h> 22 #include <linux/gpio/consumer.h> 23 #include <linux/i2c.h> 24 #include <linux/init.h> 25 #include <linux/kernel.h> 26 #include <linux/module.h> 27 #include <linux/of_device.h> 28 #include <linux/regmap.h> 29 #include <linux/regulator/consumer.h> 30 #include <linux/stddef.h> 31 #include <sound/pcm_params.h> 32 #include <sound/soc.h> 33 #include <sound/tlv.h> 34 #include <asm/unaligned.h> 35 36 #include "tas571x.h" 37 38 #define TAS571X_MAX_SUPPLIES 6 39 40 struct tas571x_chip { 41 const char *const *supply_names; 42 int num_supply_names; 43 const struct snd_kcontrol_new *controls; 44 int num_controls; 45 const struct regmap_config *regmap_config; 46 int vol_reg_size; 47 }; 48 49 struct tas571x_private { 50 const struct tas571x_chip *chip; 51 struct regmap *regmap; 52 struct regulator_bulk_data supplies[TAS571X_MAX_SUPPLIES]; 53 struct clk *mclk; 54 unsigned int format; 55 struct gpio_desc *reset_gpio; 56 struct gpio_desc *pdn_gpio; 57 struct snd_soc_component_driver component_driver; 58 }; 59 60 static int tas571x_register_size(struct tas571x_private *priv, unsigned int reg) 61 { 62 switch (reg) { 63 case TAS571X_MVOL_REG: 64 case TAS571X_CH1_VOL_REG: 65 case TAS571X_CH2_VOL_REG: 66 return priv->chip->vol_reg_size; 67 case TAS571X_INPUT_MUX_REG: 68 case TAS571X_CH4_SRC_SELECT_REG: 69 case TAS571X_PWM_MUX_REG: 70 case TAS5717_CH1_RIGHT_CH_MIX_REG: 71 case TAS5717_CH1_LEFT_CH_MIX_REG: 72 case TAS5717_CH2_LEFT_CH_MIX_REG: 73 case TAS5717_CH2_RIGHT_CH_MIX_REG: 74 return 4; 75 default: 76 return 1; 77 } 78 } 79 80 static int tas571x_reg_write(void *context, unsigned int reg, 81 unsigned int value) 82 { 83 struct i2c_client *client = context; 84 struct tas571x_private *priv = i2c_get_clientdata(client); 85 unsigned int i, size; 86 uint8_t buf[5]; 87 int ret; 88 89 size = tas571x_register_size(priv, reg); 90 buf[0] = reg; 91 92 for (i = size; i >= 1; --i) { 93 buf[i] = value; 94 value >>= 8; 95 } 96 97 ret = i2c_master_send(client, buf, size + 1); 98 if (ret == size + 1) 99 return 0; 100 else if (ret < 0) 101 return ret; 102 else 103 return -EIO; 104 } 105 106 static int tas571x_reg_read(void *context, unsigned int reg, 107 unsigned int *value) 108 { 109 struct i2c_client *client = context; 110 struct tas571x_private *priv = i2c_get_clientdata(client); 111 uint8_t send_buf, recv_buf[4]; 112 struct i2c_msg msgs[2]; 113 unsigned int size; 114 unsigned int i; 115 int ret; 116 117 size = tas571x_register_size(priv, reg); 118 send_buf = reg; 119 120 msgs[0].addr = client->addr; 121 msgs[0].len = sizeof(send_buf); 122 msgs[0].buf = &send_buf; 123 msgs[0].flags = 0; 124 125 msgs[1].addr = client->addr; 126 msgs[1].len = size; 127 msgs[1].buf = recv_buf; 128 msgs[1].flags = I2C_M_RD; 129 130 ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs)); 131 if (ret < 0) 132 return ret; 133 else if (ret != ARRAY_SIZE(msgs)) 134 return -EIO; 135 136 *value = 0; 137 138 for (i = 0; i < size; i++) { 139 *value <<= 8; 140 *value |= recv_buf[i]; 141 } 142 143 return 0; 144 } 145 146 /* 147 * register write for 8- and 20-byte registers 148 */ 149 static int tas571x_reg_write_multiword(struct i2c_client *client, 150 unsigned int reg, const long values[], size_t len) 151 { 152 size_t i; 153 uint8_t *buf, *p; 154 int ret; 155 size_t send_size = 1 + len * sizeof(uint32_t); 156 157 buf = kzalloc(send_size, GFP_KERNEL | GFP_DMA); 158 if (!buf) 159 return -ENOMEM; 160 buf[0] = reg; 161 162 for (i = 0, p = buf + 1; i < len; i++, p += sizeof(uint32_t)) 163 put_unaligned_be32(values[i], p); 164 165 ret = i2c_master_send(client, buf, send_size); 166 167 kfree(buf); 168 169 if (ret == send_size) 170 return 0; 171 else if (ret < 0) 172 return ret; 173 else 174 return -EIO; 175 } 176 177 /* 178 * register read for 8- and 20-byte registers 179 */ 180 static int tas571x_reg_read_multiword(struct i2c_client *client, 181 unsigned int reg, long values[], size_t len) 182 { 183 unsigned int i; 184 uint8_t send_buf; 185 uint8_t *recv_buf, *p; 186 struct i2c_msg msgs[2]; 187 unsigned int recv_size = len * sizeof(uint32_t); 188 int ret; 189 190 recv_buf = kzalloc(recv_size, GFP_KERNEL | GFP_DMA); 191 if (!recv_buf) 192 return -ENOMEM; 193 194 send_buf = reg; 195 196 msgs[0].addr = client->addr; 197 msgs[0].len = sizeof(send_buf); 198 msgs[0].buf = &send_buf; 199 msgs[0].flags = 0; 200 201 msgs[1].addr = client->addr; 202 msgs[1].len = recv_size; 203 msgs[1].buf = recv_buf; 204 msgs[1].flags = I2C_M_RD; 205 206 ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs)); 207 if (ret < 0) 208 goto err_ret; 209 else if (ret != ARRAY_SIZE(msgs)) { 210 ret = -EIO; 211 goto err_ret; 212 } 213 214 for (i = 0, p = recv_buf; i < len; i++, p += sizeof(uint32_t)) 215 values[i] = get_unaligned_be32(p); 216 217 err_ret: 218 kfree(recv_buf); 219 return ret; 220 } 221 222 /* 223 * Integer array controls for setting biquad, mixer, DRC coefficients. 224 * According to the datasheet each coefficient is effectively 26bits, 225 * i.e. stored as 32bits, where bits [31:26] are ignored. 226 * TI's TAS57xx Graphical Development Environment tool however produces 227 * coefficients with more than 26 bits. For this reason we allow values 228 * in the full 32-bits reange. 229 * The coefficients are ordered as given in the TAS571x data sheet: 230 * b0, b1, b2, a1, a2 231 */ 232 233 static int tas571x_coefficient_info(struct snd_kcontrol *kcontrol, 234 struct snd_ctl_elem_info *uinfo) 235 { 236 int numcoef = kcontrol->private_value >> 16; 237 238 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; 239 uinfo->count = numcoef; 240 uinfo->value.integer.min = 0; 241 uinfo->value.integer.max = 0xffffffff; 242 return 0; 243 } 244 245 static int tas571x_coefficient_get(struct snd_kcontrol *kcontrol, 246 struct snd_ctl_elem_value *ucontrol) 247 { 248 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); 249 struct i2c_client *i2c = to_i2c_client(component->dev); 250 int numcoef = kcontrol->private_value >> 16; 251 int index = kcontrol->private_value & 0xffff; 252 253 return tas571x_reg_read_multiword(i2c, index, 254 ucontrol->value.integer.value, numcoef); 255 } 256 257 static int tas571x_coefficient_put(struct snd_kcontrol *kcontrol, 258 struct snd_ctl_elem_value *ucontrol) 259 { 260 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol); 261 struct i2c_client *i2c = to_i2c_client(component->dev); 262 int numcoef = kcontrol->private_value >> 16; 263 int index = kcontrol->private_value & 0xffff; 264 265 return tas571x_reg_write_multiword(i2c, index, 266 ucontrol->value.integer.value, numcoef); 267 } 268 269 static int tas571x_set_dai_fmt(struct snd_soc_dai *dai, unsigned int format) 270 { 271 struct tas571x_private *priv = snd_soc_component_get_drvdata(dai->component); 272 273 priv->format = format; 274 275 return 0; 276 } 277 278 static int tas571x_hw_params(struct snd_pcm_substream *substream, 279 struct snd_pcm_hw_params *params, 280 struct snd_soc_dai *dai) 281 { 282 struct tas571x_private *priv = snd_soc_component_get_drvdata(dai->component); 283 u32 val; 284 285 switch (priv->format & SND_SOC_DAIFMT_FORMAT_MASK) { 286 case SND_SOC_DAIFMT_RIGHT_J: 287 val = 0x00; 288 break; 289 case SND_SOC_DAIFMT_I2S: 290 val = 0x03; 291 break; 292 case SND_SOC_DAIFMT_LEFT_J: 293 val = 0x06; 294 break; 295 default: 296 return -EINVAL; 297 } 298 299 if (params_width(params) >= 24) 300 val += 2; 301 else if (params_width(params) >= 20) 302 val += 1; 303 304 return regmap_update_bits(priv->regmap, TAS571X_SDI_REG, 305 TAS571X_SDI_FMT_MASK, val); 306 } 307 308 static int tas571x_mute(struct snd_soc_dai *dai, int mute) 309 { 310 struct snd_soc_component *component = dai->component; 311 u8 sysctl2; 312 int ret; 313 314 sysctl2 = mute ? TAS571X_SYS_CTRL_2_SDN_MASK : 0; 315 316 ret = snd_soc_component_update_bits(component, 317 TAS571X_SYS_CTRL_2_REG, 318 TAS571X_SYS_CTRL_2_SDN_MASK, 319 sysctl2); 320 usleep_range(1000, 2000); 321 322 return ret; 323 } 324 325 static int tas571x_set_bias_level(struct snd_soc_component *component, 326 enum snd_soc_bias_level level) 327 { 328 struct tas571x_private *priv = snd_soc_component_get_drvdata(component); 329 int ret; 330 331 switch (level) { 332 case SND_SOC_BIAS_ON: 333 break; 334 case SND_SOC_BIAS_PREPARE: 335 break; 336 case SND_SOC_BIAS_STANDBY: 337 if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF) { 338 if (!IS_ERR(priv->mclk)) { 339 ret = clk_prepare_enable(priv->mclk); 340 if (ret) { 341 dev_err(component->dev, 342 "Failed to enable master clock: %d\n", 343 ret); 344 return ret; 345 } 346 } 347 } 348 break; 349 case SND_SOC_BIAS_OFF: 350 if (!IS_ERR(priv->mclk)) 351 clk_disable_unprepare(priv->mclk); 352 break; 353 } 354 355 return 0; 356 } 357 358 static const struct snd_soc_dai_ops tas571x_dai_ops = { 359 .set_fmt = tas571x_set_dai_fmt, 360 .hw_params = tas571x_hw_params, 361 .digital_mute = tas571x_mute, 362 }; 363 364 365 #define BIQUAD_COEFS(xname, reg) \ 366 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \ 367 .info = tas571x_coefficient_info, \ 368 .get = tas571x_coefficient_get,\ 369 .put = tas571x_coefficient_put, \ 370 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, \ 371 .private_value = reg | (5 << 16) } 372 373 static const char *const tas5711_supply_names[] = { 374 "AVDD", 375 "DVDD", 376 "PVDD_A", 377 "PVDD_B", 378 "PVDD_C", 379 "PVDD_D", 380 }; 381 382 static const DECLARE_TLV_DB_SCALE(tas5711_volume_tlv, -10350, 50, 1); 383 384 static const struct snd_kcontrol_new tas5711_controls[] = { 385 SOC_SINGLE_TLV("Master Volume", 386 TAS571X_MVOL_REG, 387 0, 0xff, 1, tas5711_volume_tlv), 388 SOC_DOUBLE_R_TLV("Speaker Volume", 389 TAS571X_CH1_VOL_REG, 390 TAS571X_CH2_VOL_REG, 391 0, 0xff, 1, tas5711_volume_tlv), 392 SOC_DOUBLE("Speaker Switch", 393 TAS571X_SOFT_MUTE_REG, 394 TAS571X_SOFT_MUTE_CH1_SHIFT, TAS571X_SOFT_MUTE_CH2_SHIFT, 395 1, 1), 396 }; 397 398 static const struct regmap_range tas571x_readonly_regs_range[] = { 399 regmap_reg_range(TAS571X_CLK_CTRL_REG, TAS571X_DEV_ID_REG), 400 }; 401 402 static const struct regmap_range tas571x_volatile_regs_range[] = { 403 regmap_reg_range(TAS571X_CLK_CTRL_REG, TAS571X_ERR_STATUS_REG), 404 regmap_reg_range(TAS571X_OSC_TRIM_REG, TAS571X_OSC_TRIM_REG), 405 }; 406 407 static const struct regmap_access_table tas571x_write_regs = { 408 .no_ranges = tas571x_readonly_regs_range, 409 .n_no_ranges = ARRAY_SIZE(tas571x_readonly_regs_range), 410 }; 411 412 static const struct regmap_access_table tas571x_volatile_regs = { 413 .yes_ranges = tas571x_volatile_regs_range, 414 .n_yes_ranges = ARRAY_SIZE(tas571x_volatile_regs_range), 415 416 }; 417 418 static const struct reg_default tas5711_reg_defaults[] = { 419 { 0x04, 0x05 }, 420 { 0x05, 0x40 }, 421 { 0x06, 0x00 }, 422 { 0x07, 0xff }, 423 { 0x08, 0x30 }, 424 { 0x09, 0x30 }, 425 { 0x1b, 0x82 }, 426 }; 427 428 static const struct regmap_config tas5711_regmap_config = { 429 .reg_bits = 8, 430 .val_bits = 32, 431 .max_register = 0xff, 432 .reg_read = tas571x_reg_read, 433 .reg_write = tas571x_reg_write, 434 .reg_defaults = tas5711_reg_defaults, 435 .num_reg_defaults = ARRAY_SIZE(tas5711_reg_defaults), 436 .cache_type = REGCACHE_RBTREE, 437 .wr_table = &tas571x_write_regs, 438 .volatile_table = &tas571x_volatile_regs, 439 }; 440 441 static const struct tas571x_chip tas5711_chip = { 442 .supply_names = tas5711_supply_names, 443 .num_supply_names = ARRAY_SIZE(tas5711_supply_names), 444 .controls = tas5711_controls, 445 .num_controls = ARRAY_SIZE(tas5711_controls), 446 .regmap_config = &tas5711_regmap_config, 447 .vol_reg_size = 1, 448 }; 449 450 static const struct regmap_range tas5707_volatile_regs_range[] = { 451 regmap_reg_range(TAS571X_CLK_CTRL_REG, TAS571X_ERR_STATUS_REG), 452 regmap_reg_range(TAS571X_OSC_TRIM_REG, TAS571X_OSC_TRIM_REG), 453 regmap_reg_range(TAS5707_CH1_BQ0_REG, TAS5707_CH2_BQ6_REG), 454 }; 455 456 static const struct regmap_access_table tas5707_volatile_regs = { 457 .yes_ranges = tas5707_volatile_regs_range, 458 .n_yes_ranges = ARRAY_SIZE(tas5707_volatile_regs_range), 459 460 }; 461 462 static const DECLARE_TLV_DB_SCALE(tas5707_volume_tlv, -7900, 50, 1); 463 464 static const char * const tas5707_volume_slew_step_txt[] = { 465 "256", "512", "1024", "2048", 466 }; 467 468 static const unsigned int tas5707_volume_slew_step_values[] = { 469 3, 0, 1, 2, 470 }; 471 472 static SOC_VALUE_ENUM_SINGLE_DECL(tas5707_volume_slew_step_enum, 473 TAS571X_VOL_CFG_REG, 0, 0x3, 474 tas5707_volume_slew_step_txt, 475 tas5707_volume_slew_step_values); 476 477 static const struct snd_kcontrol_new tas5707_controls[] = { 478 SOC_SINGLE_TLV("Master Volume", 479 TAS571X_MVOL_REG, 480 0, 0xff, 1, tas5707_volume_tlv), 481 SOC_DOUBLE_R_TLV("Speaker Volume", 482 TAS571X_CH1_VOL_REG, 483 TAS571X_CH2_VOL_REG, 484 0, 0xff, 1, tas5707_volume_tlv), 485 SOC_DOUBLE("Speaker Switch", 486 TAS571X_SOFT_MUTE_REG, 487 TAS571X_SOFT_MUTE_CH1_SHIFT, TAS571X_SOFT_MUTE_CH2_SHIFT, 488 1, 1), 489 490 SOC_ENUM("Slew Rate Steps", tas5707_volume_slew_step_enum), 491 492 BIQUAD_COEFS("CH1 - Biquad 0", TAS5707_CH1_BQ0_REG), 493 BIQUAD_COEFS("CH1 - Biquad 1", TAS5707_CH1_BQ1_REG), 494 BIQUAD_COEFS("CH1 - Biquad 2", TAS5707_CH1_BQ2_REG), 495 BIQUAD_COEFS("CH1 - Biquad 3", TAS5707_CH1_BQ3_REG), 496 BIQUAD_COEFS("CH1 - Biquad 4", TAS5707_CH1_BQ4_REG), 497 BIQUAD_COEFS("CH1 - Biquad 5", TAS5707_CH1_BQ5_REG), 498 BIQUAD_COEFS("CH1 - Biquad 6", TAS5707_CH1_BQ6_REG), 499 500 BIQUAD_COEFS("CH2 - Biquad 0", TAS5707_CH2_BQ0_REG), 501 BIQUAD_COEFS("CH2 - Biquad 1", TAS5707_CH2_BQ1_REG), 502 BIQUAD_COEFS("CH2 - Biquad 2", TAS5707_CH2_BQ2_REG), 503 BIQUAD_COEFS("CH2 - Biquad 3", TAS5707_CH2_BQ3_REG), 504 BIQUAD_COEFS("CH2 - Biquad 4", TAS5707_CH2_BQ4_REG), 505 BIQUAD_COEFS("CH2 - Biquad 5", TAS5707_CH2_BQ5_REG), 506 BIQUAD_COEFS("CH2 - Biquad 6", TAS5707_CH2_BQ6_REG), 507 }; 508 509 static const struct reg_default tas5707_reg_defaults[] = { 510 {TAS571X_CLK_CTRL_REG, 0x6c}, 511 {TAS571X_DEV_ID_REG, 0x70}, 512 {TAS571X_ERR_STATUS_REG, 0x00}, 513 {TAS571X_SYS_CTRL_1_REG, 0xa0}, 514 {TAS571X_SDI_REG, 0x05}, 515 {TAS571X_SYS_CTRL_2_REG, 0x40}, 516 {TAS571X_SOFT_MUTE_REG, 0x00}, 517 {TAS571X_MVOL_REG, 0xff}, 518 {TAS571X_CH1_VOL_REG, 0x30}, 519 {TAS571X_CH2_VOL_REG, 0x30}, 520 {TAS571X_VOL_CFG_REG, 0x91}, 521 {TAS571X_MODULATION_LIMIT_REG, 0x02}, 522 {TAS571X_IC_DELAY_CH1_REG, 0xac}, 523 {TAS571X_IC_DELAY_CH2_REG, 0x54}, 524 {TAS571X_IC_DELAY_CH3_REG, 0xac}, 525 {TAS571X_IC_DELAY_CH4_REG, 0x54}, 526 {TAS571X_START_STOP_PERIOD_REG, 0x0f}, 527 {TAS571X_OSC_TRIM_REG, 0x82}, 528 {TAS571X_BKND_ERR_REG, 0x02}, 529 {TAS571X_INPUT_MUX_REG, 0x17772}, 530 {TAS571X_PWM_MUX_REG, 0x1021345}, 531 }; 532 533 static const struct regmap_config tas5707_regmap_config = { 534 .reg_bits = 8, 535 .val_bits = 32, 536 .max_register = 0xff, 537 .reg_read = tas571x_reg_read, 538 .reg_write = tas571x_reg_write, 539 .reg_defaults = tas5707_reg_defaults, 540 .num_reg_defaults = ARRAY_SIZE(tas5707_reg_defaults), 541 .cache_type = REGCACHE_RBTREE, 542 .wr_table = &tas571x_write_regs, 543 .volatile_table = &tas5707_volatile_regs, 544 }; 545 546 static const struct tas571x_chip tas5707_chip = { 547 .supply_names = tas5711_supply_names, 548 .num_supply_names = ARRAY_SIZE(tas5711_supply_names), 549 .controls = tas5707_controls, 550 .num_controls = ARRAY_SIZE(tas5707_controls), 551 .regmap_config = &tas5707_regmap_config, 552 .vol_reg_size = 1, 553 }; 554 555 static const char *const tas5717_supply_names[] = { 556 "AVDD", 557 "DVDD", 558 "HPVDD", 559 "PVDD_AB", 560 "PVDD_CD", 561 }; 562 563 static const DECLARE_TLV_DB_SCALE(tas5717_volume_tlv, -10375, 25, 0); 564 565 static const struct snd_kcontrol_new tas5717_controls[] = { 566 /* MVOL LSB is ignored - see comments in tas571x_i2c_probe() */ 567 SOC_SINGLE_TLV("Master Volume", 568 TAS571X_MVOL_REG, 1, 0x1ff, 1, 569 tas5717_volume_tlv), 570 SOC_DOUBLE_R_TLV("Speaker Volume", 571 TAS571X_CH1_VOL_REG, TAS571X_CH2_VOL_REG, 572 1, 0x1ff, 1, tas5717_volume_tlv), 573 SOC_DOUBLE("Speaker Switch", 574 TAS571X_SOFT_MUTE_REG, 575 TAS571X_SOFT_MUTE_CH1_SHIFT, TAS571X_SOFT_MUTE_CH2_SHIFT, 576 1, 1), 577 578 SOC_DOUBLE_R_RANGE("CH1 Mixer Volume", 579 TAS5717_CH1_LEFT_CH_MIX_REG, 580 TAS5717_CH1_RIGHT_CH_MIX_REG, 581 16, 0, 0x80, 0), 582 583 SOC_DOUBLE_R_RANGE("CH2 Mixer Volume", 584 TAS5717_CH2_LEFT_CH_MIX_REG, 585 TAS5717_CH2_RIGHT_CH_MIX_REG, 586 16, 0, 0x80, 0), 587 588 /* 589 * The biquads are named according to the register names. 590 * Please note that TI's TAS57xx Graphical Development Environment 591 * tool names them different. 592 */ 593 BIQUAD_COEFS("CH1 - Biquad 0", TAS5717_CH1_BQ0_REG), 594 BIQUAD_COEFS("CH1 - Biquad 1", TAS5717_CH1_BQ1_REG), 595 BIQUAD_COEFS("CH1 - Biquad 2", TAS5717_CH1_BQ2_REG), 596 BIQUAD_COEFS("CH1 - Biquad 3", TAS5717_CH1_BQ3_REG), 597 BIQUAD_COEFS("CH1 - Biquad 4", TAS5717_CH1_BQ4_REG), 598 BIQUAD_COEFS("CH1 - Biquad 5", TAS5717_CH1_BQ5_REG), 599 BIQUAD_COEFS("CH1 - Biquad 6", TAS5717_CH1_BQ6_REG), 600 BIQUAD_COEFS("CH1 - Biquad 7", TAS5717_CH1_BQ7_REG), 601 BIQUAD_COEFS("CH1 - Biquad 8", TAS5717_CH1_BQ8_REG), 602 BIQUAD_COEFS("CH1 - Biquad 9", TAS5717_CH1_BQ9_REG), 603 BIQUAD_COEFS("CH1 - Biquad 10", TAS5717_CH1_BQ10_REG), 604 BIQUAD_COEFS("CH1 - Biquad 11", TAS5717_CH1_BQ11_REG), 605 606 BIQUAD_COEFS("CH2 - Biquad 0", TAS5717_CH2_BQ0_REG), 607 BIQUAD_COEFS("CH2 - Biquad 1", TAS5717_CH2_BQ1_REG), 608 BIQUAD_COEFS("CH2 - Biquad 2", TAS5717_CH2_BQ2_REG), 609 BIQUAD_COEFS("CH2 - Biquad 3", TAS5717_CH2_BQ3_REG), 610 BIQUAD_COEFS("CH2 - Biquad 4", TAS5717_CH2_BQ4_REG), 611 BIQUAD_COEFS("CH2 - Biquad 5", TAS5717_CH2_BQ5_REG), 612 BIQUAD_COEFS("CH2 - Biquad 6", TAS5717_CH2_BQ6_REG), 613 BIQUAD_COEFS("CH2 - Biquad 7", TAS5717_CH2_BQ7_REG), 614 BIQUAD_COEFS("CH2 - Biquad 8", TAS5717_CH2_BQ8_REG), 615 BIQUAD_COEFS("CH2 - Biquad 9", TAS5717_CH2_BQ9_REG), 616 BIQUAD_COEFS("CH2 - Biquad 10", TAS5717_CH2_BQ10_REG), 617 BIQUAD_COEFS("CH2 - Biquad 11", TAS5717_CH2_BQ11_REG), 618 619 BIQUAD_COEFS("CH3 - Biquad 0", TAS5717_CH3_BQ0_REG), 620 BIQUAD_COEFS("CH3 - Biquad 1", TAS5717_CH3_BQ1_REG), 621 622 BIQUAD_COEFS("CH4 - Biquad 0", TAS5717_CH4_BQ0_REG), 623 BIQUAD_COEFS("CH4 - Biquad 1", TAS5717_CH4_BQ1_REG), 624 }; 625 626 static const struct reg_default tas5717_reg_defaults[] = { 627 { 0x04, 0x05 }, 628 { 0x05, 0x40 }, 629 { 0x06, 0x00 }, 630 { 0x07, 0x03ff }, 631 { 0x08, 0x00c0 }, 632 { 0x09, 0x00c0 }, 633 { 0x1b, 0x82 }, 634 { TAS5717_CH1_RIGHT_CH_MIX_REG, 0x0 }, 635 { TAS5717_CH1_LEFT_CH_MIX_REG, 0x800000}, 636 { TAS5717_CH2_LEFT_CH_MIX_REG, 0x0 }, 637 { TAS5717_CH2_RIGHT_CH_MIX_REG, 0x800000}, 638 }; 639 640 static const struct regmap_config tas5717_regmap_config = { 641 .reg_bits = 8, 642 .val_bits = 32, 643 .max_register = 0xff, 644 .reg_read = tas571x_reg_read, 645 .reg_write = tas571x_reg_write, 646 .reg_defaults = tas5717_reg_defaults, 647 .num_reg_defaults = ARRAY_SIZE(tas5717_reg_defaults), 648 .cache_type = REGCACHE_RBTREE, 649 .wr_table = &tas571x_write_regs, 650 .volatile_table = &tas571x_volatile_regs, 651 }; 652 653 /* This entry is reused for tas5719 as the software interface is identical. */ 654 static const struct tas571x_chip tas5717_chip = { 655 .supply_names = tas5717_supply_names, 656 .num_supply_names = ARRAY_SIZE(tas5717_supply_names), 657 .controls = tas5717_controls, 658 .num_controls = ARRAY_SIZE(tas5717_controls), 659 .regmap_config = &tas5717_regmap_config, 660 .vol_reg_size = 2, 661 }; 662 663 static const char *const tas5721_supply_names[] = { 664 "AVDD", 665 "DVDD", 666 "DRVDD", 667 "PVDD", 668 }; 669 670 static const struct snd_kcontrol_new tas5721_controls[] = { 671 SOC_SINGLE_TLV("Master Volume", 672 TAS571X_MVOL_REG, 673 0, 0xff, 1, tas5711_volume_tlv), 674 SOC_DOUBLE_R_TLV("Speaker Volume", 675 TAS571X_CH1_VOL_REG, 676 TAS571X_CH2_VOL_REG, 677 0, 0xff, 1, tas5711_volume_tlv), 678 SOC_DOUBLE("Speaker Switch", 679 TAS571X_SOFT_MUTE_REG, 680 TAS571X_SOFT_MUTE_CH1_SHIFT, TAS571X_SOFT_MUTE_CH2_SHIFT, 681 1, 1), 682 }; 683 684 static const struct reg_default tas5721_reg_defaults[] = { 685 {TAS571X_CLK_CTRL_REG, 0x6c}, 686 {TAS571X_DEV_ID_REG, 0x00}, 687 {TAS571X_ERR_STATUS_REG, 0x00}, 688 {TAS571X_SYS_CTRL_1_REG, 0xa0}, 689 {TAS571X_SDI_REG, 0x05}, 690 {TAS571X_SYS_CTRL_2_REG, 0x40}, 691 {TAS571X_SOFT_MUTE_REG, 0x00}, 692 {TAS571X_MVOL_REG, 0xff}, 693 {TAS571X_CH1_VOL_REG, 0x30}, 694 {TAS571X_CH2_VOL_REG, 0x30}, 695 {TAS571X_CH3_VOL_REG, 0x30}, 696 {TAS571X_VOL_CFG_REG, 0x91}, 697 {TAS571X_MODULATION_LIMIT_REG, 0x02}, 698 {TAS571X_IC_DELAY_CH1_REG, 0xac}, 699 {TAS571X_IC_DELAY_CH2_REG, 0x54}, 700 {TAS571X_IC_DELAY_CH3_REG, 0xac}, 701 {TAS571X_IC_DELAY_CH4_REG, 0x54}, 702 {TAS571X_PWM_CH_SDN_GROUP_REG, 0x30}, 703 {TAS571X_START_STOP_PERIOD_REG, 0x0f}, 704 {TAS571X_OSC_TRIM_REG, 0x82}, 705 {TAS571X_BKND_ERR_REG, 0x02}, 706 {TAS571X_INPUT_MUX_REG, 0x17772}, 707 {TAS571X_CH4_SRC_SELECT_REG, 0x4303}, 708 {TAS571X_PWM_MUX_REG, 0x1021345}, 709 }; 710 711 static const struct regmap_config tas5721_regmap_config = { 712 .reg_bits = 8, 713 .val_bits = 32, 714 .max_register = 0xff, 715 .reg_read = tas571x_reg_read, 716 .reg_write = tas571x_reg_write, 717 .reg_defaults = tas5721_reg_defaults, 718 .num_reg_defaults = ARRAY_SIZE(tas5721_reg_defaults), 719 .cache_type = REGCACHE_RBTREE, 720 .wr_table = &tas571x_write_regs, 721 .volatile_table = &tas571x_volatile_regs, 722 }; 723 724 725 static const struct tas571x_chip tas5721_chip = { 726 .supply_names = tas5721_supply_names, 727 .num_supply_names = ARRAY_SIZE(tas5721_supply_names), 728 .controls = tas5711_controls, 729 .num_controls = ARRAY_SIZE(tas5711_controls), 730 .regmap_config = &tas5721_regmap_config, 731 .vol_reg_size = 1, 732 }; 733 734 static const struct snd_soc_dapm_widget tas571x_dapm_widgets[] = { 735 SND_SOC_DAPM_DAC("DACL", NULL, SND_SOC_NOPM, 0, 0), 736 SND_SOC_DAPM_DAC("DACR", NULL, SND_SOC_NOPM, 0, 0), 737 738 SND_SOC_DAPM_OUTPUT("OUT_A"), 739 SND_SOC_DAPM_OUTPUT("OUT_B"), 740 SND_SOC_DAPM_OUTPUT("OUT_C"), 741 SND_SOC_DAPM_OUTPUT("OUT_D"), 742 }; 743 744 static const struct snd_soc_dapm_route tas571x_dapm_routes[] = { 745 { "DACL", NULL, "Playback" }, 746 { "DACR", NULL, "Playback" }, 747 748 { "OUT_A", NULL, "DACL" }, 749 { "OUT_B", NULL, "DACL" }, 750 { "OUT_C", NULL, "DACR" }, 751 { "OUT_D", NULL, "DACR" }, 752 }; 753 754 static const struct snd_soc_component_driver tas571x_component = { 755 .set_bias_level = tas571x_set_bias_level, 756 .dapm_widgets = tas571x_dapm_widgets, 757 .num_dapm_widgets = ARRAY_SIZE(tas571x_dapm_widgets), 758 .dapm_routes = tas571x_dapm_routes, 759 .num_dapm_routes = ARRAY_SIZE(tas571x_dapm_routes), 760 .use_pmdown_time = 1, 761 .endianness = 1, 762 .non_legacy_dai_naming = 1, 763 }; 764 765 static struct snd_soc_dai_driver tas571x_dai = { 766 .name = "tas571x-hifi", 767 .playback = { 768 .stream_name = "Playback", 769 .channels_min = 2, 770 .channels_max = 2, 771 .rates = SNDRV_PCM_RATE_8000_48000, 772 .formats = SNDRV_PCM_FMTBIT_S32_LE | 773 SNDRV_PCM_FMTBIT_S24_LE | 774 SNDRV_PCM_FMTBIT_S16_LE, 775 }, 776 .ops = &tas571x_dai_ops, 777 }; 778 779 static const struct of_device_id tas571x_of_match[]; 780 781 static int tas571x_i2c_probe(struct i2c_client *client, 782 const struct i2c_device_id *id) 783 { 784 struct tas571x_private *priv; 785 struct device *dev = &client->dev; 786 const struct of_device_id *of_id; 787 int i, ret; 788 789 priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); 790 if (!priv) 791 return -ENOMEM; 792 i2c_set_clientdata(client, priv); 793 794 of_id = of_match_device(tas571x_of_match, dev); 795 if (of_id) 796 priv->chip = of_id->data; 797 else 798 priv->chip = (void *) id->driver_data; 799 800 priv->mclk = devm_clk_get(dev, "mclk"); 801 if (IS_ERR(priv->mclk) && PTR_ERR(priv->mclk) != -ENOENT) { 802 dev_err(dev, "Failed to request mclk: %ld\n", 803 PTR_ERR(priv->mclk)); 804 return PTR_ERR(priv->mclk); 805 } 806 807 if (WARN_ON(priv->chip->num_supply_names > TAS571X_MAX_SUPPLIES)) 808 return -EINVAL; 809 for (i = 0; i < priv->chip->num_supply_names; i++) 810 priv->supplies[i].supply = priv->chip->supply_names[i]; 811 812 ret = devm_regulator_bulk_get(dev, priv->chip->num_supply_names, 813 priv->supplies); 814 if (ret) { 815 dev_err(dev, "Failed to get supplies: %d\n", ret); 816 return ret; 817 } 818 ret = regulator_bulk_enable(priv->chip->num_supply_names, 819 priv->supplies); 820 if (ret) { 821 dev_err(dev, "Failed to enable supplies: %d\n", ret); 822 return ret; 823 } 824 825 priv->regmap = devm_regmap_init(dev, NULL, client, 826 priv->chip->regmap_config); 827 if (IS_ERR(priv->regmap)) 828 return PTR_ERR(priv->regmap); 829 830 priv->pdn_gpio = devm_gpiod_get_optional(dev, "pdn", GPIOD_OUT_LOW); 831 if (IS_ERR(priv->pdn_gpio)) { 832 dev_err(dev, "error requesting pdn_gpio: %ld\n", 833 PTR_ERR(priv->pdn_gpio)); 834 return PTR_ERR(priv->pdn_gpio); 835 } 836 837 priv->reset_gpio = devm_gpiod_get_optional(dev, "reset", 838 GPIOD_OUT_HIGH); 839 if (IS_ERR(priv->reset_gpio)) { 840 dev_err(dev, "error requesting reset_gpio: %ld\n", 841 PTR_ERR(priv->reset_gpio)); 842 return PTR_ERR(priv->reset_gpio); 843 } else if (priv->reset_gpio) { 844 /* pulse the active low reset line for ~100us */ 845 usleep_range(100, 200); 846 gpiod_set_value(priv->reset_gpio, 0); 847 usleep_range(13500, 20000); 848 } 849 850 ret = regmap_write(priv->regmap, TAS571X_OSC_TRIM_REG, 0); 851 if (ret) 852 return ret; 853 854 usleep_range(50000, 60000); 855 856 memcpy(&priv->component_driver, &tas571x_component, sizeof(priv->component_driver)); 857 priv->component_driver.controls = priv->chip->controls; 858 priv->component_driver.num_controls = priv->chip->num_controls; 859 860 if (priv->chip->vol_reg_size == 2) { 861 /* 862 * The master volume defaults to 0x3ff (mute), but we ignore 863 * (zero) the LSB because the hardware step size is 0.125 dB 864 * and TLV_DB_SCALE_ITEM has a resolution of 0.01 dB. 865 */ 866 ret = regmap_update_bits(priv->regmap, TAS571X_MVOL_REG, 1, 0); 867 if (ret) 868 return ret; 869 } 870 871 return devm_snd_soc_register_component(&client->dev, 872 &priv->component_driver, 873 &tas571x_dai, 1); 874 } 875 876 static int tas571x_i2c_remove(struct i2c_client *client) 877 { 878 struct tas571x_private *priv = i2c_get_clientdata(client); 879 880 regulator_bulk_disable(priv->chip->num_supply_names, priv->supplies); 881 882 return 0; 883 } 884 885 static const struct of_device_id tas571x_of_match[] = { 886 { .compatible = "ti,tas5707", .data = &tas5707_chip, }, 887 { .compatible = "ti,tas5711", .data = &tas5711_chip, }, 888 { .compatible = "ti,tas5717", .data = &tas5717_chip, }, 889 { .compatible = "ti,tas5719", .data = &tas5717_chip, }, 890 { .compatible = "ti,tas5721", .data = &tas5721_chip, }, 891 { } 892 }; 893 MODULE_DEVICE_TABLE(of, tas571x_of_match); 894 895 static const struct i2c_device_id tas571x_i2c_id[] = { 896 { "tas5707", (kernel_ulong_t) &tas5707_chip }, 897 { "tas5711", (kernel_ulong_t) &tas5711_chip }, 898 { "tas5717", (kernel_ulong_t) &tas5717_chip }, 899 { "tas5719", (kernel_ulong_t) &tas5717_chip }, 900 { "tas5721", (kernel_ulong_t) &tas5721_chip }, 901 { } 902 }; 903 MODULE_DEVICE_TABLE(i2c, tas571x_i2c_id); 904 905 static struct i2c_driver tas571x_i2c_driver = { 906 .driver = { 907 .name = "tas571x", 908 .of_match_table = of_match_ptr(tas571x_of_match), 909 }, 910 .probe = tas571x_i2c_probe, 911 .remove = tas571x_i2c_remove, 912 .id_table = tas571x_i2c_id, 913 }; 914 module_i2c_driver(tas571x_i2c_driver); 915 916 MODULE_DESCRIPTION("ASoC TAS571x driver"); 917 MODULE_AUTHOR("Kevin Cernekee <cernekee@chromium.org>"); 918 MODULE_LICENSE("GPL"); 919