1// SPDX-License-Identifier: GPL-2.0-only 2/* 3 * wm8993.c -- WM8993 ALSA SoC audio driver 4 * 5 * Copyright 2009-12 Wolfson Microelectronics plc 6 * 7 * Author: Mark Brown <broonie@opensource.wolfsonmicro.com> 8 */ 9 10#include <linux/module.h> 11#include <linux/moduleparam.h> 12#include <linux/init.h> 13#include <linux/delay.h> 14#include <linux/pm.h> 15#include <linux/i2c.h> 16#include <linux/regmap.h> 17#include <linux/regulator/consumer.h> 18#include <linux/spi/spi.h> 19#include <linux/slab.h> 20#include <sound/core.h> 21#include <sound/pcm.h> 22#include <sound/pcm_params.h> 23#include <sound/tlv.h> 24#include <sound/soc.h> 25#include <sound/initval.h> 26#include <sound/wm8993.h> 27 28#include "wm8993.h" 29#include "wm_hubs.h" 30 31#define WM8993_NUM_SUPPLIES 6 32static const char *wm8993_supply_names[WM8993_NUM_SUPPLIES] = { 33 "DCVDD", 34 "DBVDD", 35 "AVDD1", 36 "AVDD2", 37 "CPVDD", 38 "SPKVDD", 39}; 40 41static const struct reg_default wm8993_reg_defaults[] = { 42 { 1, 0x0000 }, /* R1 - Power Management (1) */ 43 { 2, 0x6000 }, /* R2 - Power Management (2) */ 44 { 3, 0x0000 }, /* R3 - Power Management (3) */ 45 { 4, 0x4050 }, /* R4 - Audio Interface (1) */ 46 { 5, 0x4000 }, /* R5 - Audio Interface (2) */ 47 { 6, 0x01C8 }, /* R6 - Clocking 1 */ 48 { 7, 0x0000 }, /* R7 - Clocking 2 */ 49 { 8, 0x0000 }, /* R8 - Audio Interface (3) */ 50 { 9, 0x0040 }, /* R9 - Audio Interface (4) */ 51 { 10, 0x0004 }, /* R10 - DAC CTRL */ 52 { 11, 0x00C0 }, /* R11 - Left DAC Digital Volume */ 53 { 12, 0x00C0 }, /* R12 - Right DAC Digital Volume */ 54 { 13, 0x0000 }, /* R13 - Digital Side Tone */ 55 { 14, 0x0300 }, /* R14 - ADC CTRL */ 56 { 15, 0x00C0 }, /* R15 - Left ADC Digital Volume */ 57 { 16, 0x00C0 }, /* R16 - Right ADC Digital Volume */ 58 { 18, 0x0000 }, /* R18 - GPIO CTRL 1 */ 59 { 19, 0x0010 }, /* R19 - GPIO1 */ 60 { 20, 0x0000 }, /* R20 - IRQ_DEBOUNCE */ 61 { 21, 0x0000 }, /* R21 - Inputs Clamp */ 62 { 22, 0x8000 }, /* R22 - GPIOCTRL 2 */ 63 { 23, 0x0800 }, /* R23 - GPIO_POL */ 64 { 24, 0x008B }, /* R24 - Left Line Input 1&2 Volume */ 65 { 25, 0x008B }, /* R25 - Left Line Input 3&4 Volume */ 66 { 26, 0x008B }, /* R26 - Right Line Input 1&2 Volume */ 67 { 27, 0x008B }, /* R27 - Right Line Input 3&4 Volume */ 68 { 28, 0x006D }, /* R28 - Left Output Volume */ 69 { 29, 0x006D }, /* R29 - Right Output Volume */ 70 { 30, 0x0066 }, /* R30 - Line Outputs Volume */ 71 { 31, 0x0020 }, /* R31 - HPOUT2 Volume */ 72 { 32, 0x0079 }, /* R32 - Left OPGA Volume */ 73 { 33, 0x0079 }, /* R33 - Right OPGA Volume */ 74 { 34, 0x0003 }, /* R34 - SPKMIXL Attenuation */ 75 { 35, 0x0003 }, /* R35 - SPKMIXR Attenuation */ 76 { 36, 0x0011 }, /* R36 - SPKOUT Mixers */ 77 { 37, 0x0100 }, /* R37 - SPKOUT Boost */ 78 { 38, 0x0079 }, /* R38 - Speaker Volume Left */ 79 { 39, 0x0079 }, /* R39 - Speaker Volume Right */ 80 { 40, 0x0000 }, /* R40 - Input Mixer2 */ 81 { 41, 0x0000 }, /* R41 - Input Mixer3 */ 82 { 42, 0x0000 }, /* R42 - Input Mixer4 */ 83 { 43, 0x0000 }, /* R43 - Input Mixer5 */ 84 { 44, 0x0000 }, /* R44 - Input Mixer6 */ 85 { 45, 0x0000 }, /* R45 - Output Mixer1 */ 86 { 46, 0x0000 }, /* R46 - Output Mixer2 */ 87 { 47, 0x0000 }, /* R47 - Output Mixer3 */ 88 { 48, 0x0000 }, /* R48 - Output Mixer4 */ 89 { 49, 0x0000 }, /* R49 - Output Mixer5 */ 90 { 50, 0x0000 }, /* R50 - Output Mixer6 */ 91 { 51, 0x0000 }, /* R51 - HPOUT2 Mixer */ 92 { 52, 0x0000 }, /* R52 - Line Mixer1 */ 93 { 53, 0x0000 }, /* R53 - Line Mixer2 */ 94 { 54, 0x0000 }, /* R54 - Speaker Mixer */ 95 { 55, 0x0000 }, /* R55 - Additional Control */ 96 { 56, 0x0000 }, /* R56 - AntiPOP1 */ 97 { 57, 0x0000 }, /* R57 - AntiPOP2 */ 98 { 58, 0x0000 }, /* R58 - MICBIAS */ 99 { 60, 0x0000 }, /* R60 - FLL Control 1 */ 100 { 61, 0x0000 }, /* R61 - FLL Control 2 */ 101 { 62, 0x0000 }, /* R62 - FLL Control 3 */ 102 { 63, 0x2EE0 }, /* R63 - FLL Control 4 */ 103 { 64, 0x0002 }, /* R64 - FLL Control 5 */ 104 { 65, 0x2287 }, /* R65 - Clocking 3 */ 105 { 66, 0x025F }, /* R66 - Clocking 4 */ 106 { 67, 0x0000 }, /* R67 - MW Slave Control */ 107 { 69, 0x0002 }, /* R69 - Bus Control 1 */ 108 { 70, 0x0000 }, /* R70 - Write Sequencer 0 */ 109 { 71, 0x0000 }, /* R71 - Write Sequencer 1 */ 110 { 72, 0x0000 }, /* R72 - Write Sequencer 2 */ 111 { 73, 0x0000 }, /* R73 - Write Sequencer 3 */ 112 { 74, 0x0000 }, /* R74 - Write Sequencer 4 */ 113 { 75, 0x0000 }, /* R75 - Write Sequencer 5 */ 114 { 76, 0x1F25 }, /* R76 - Charge Pump 1 */ 115 { 81, 0x0000 }, /* R81 - Class W 0 */ 116 { 85, 0x054A }, /* R85 - DC Servo 1 */ 117 { 87, 0x0000 }, /* R87 - DC Servo 3 */ 118 { 96, 0x0100 }, /* R96 - Analogue HP 0 */ 119 { 98, 0x0000 }, /* R98 - EQ1 */ 120 { 99, 0x000C }, /* R99 - EQ2 */ 121 { 100, 0x000C }, /* R100 - EQ3 */ 122 { 101, 0x000C }, /* R101 - EQ4 */ 123 { 102, 0x000C }, /* R102 - EQ5 */ 124 { 103, 0x000C }, /* R103 - EQ6 */ 125 { 104, 0x0FCA }, /* R104 - EQ7 */ 126 { 105, 0x0400 }, /* R105 - EQ8 */ 127 { 106, 0x00D8 }, /* R106 - EQ9 */ 128 { 107, 0x1EB5 }, /* R107 - EQ10 */ 129 { 108, 0xF145 }, /* R108 - EQ11 */ 130 { 109, 0x0B75 }, /* R109 - EQ12 */ 131 { 110, 0x01C5 }, /* R110 - EQ13 */ 132 { 111, 0x1C58 }, /* R111 - EQ14 */ 133 { 112, 0xF373 }, /* R112 - EQ15 */ 134 { 113, 0x0A54 }, /* R113 - EQ16 */ 135 { 114, 0x0558 }, /* R114 - EQ17 */ 136 { 115, 0x168E }, /* R115 - EQ18 */ 137 { 116, 0xF829 }, /* R116 - EQ19 */ 138 { 117, 0x07AD }, /* R117 - EQ20 */ 139 { 118, 0x1103 }, /* R118 - EQ21 */ 140 { 119, 0x0564 }, /* R119 - EQ22 */ 141 { 120, 0x0559 }, /* R120 - EQ23 */ 142 { 121, 0x4000 }, /* R121 - EQ24 */ 143 { 122, 0x0000 }, /* R122 - Digital Pulls */ 144 { 123, 0x0F08 }, /* R123 - DRC Control 1 */ 145 { 124, 0x0000 }, /* R124 - DRC Control 2 */ 146 { 125, 0x0080 }, /* R125 - DRC Control 3 */ 147 { 126, 0x0000 }, /* R126 - DRC Control 4 */ 148}; 149 150static struct { 151 int ratio; 152 int clk_sys_rate; 153} clk_sys_rates[] = { 154 { 64, 0 }, 155 { 128, 1 }, 156 { 192, 2 }, 157 { 256, 3 }, 158 { 384, 4 }, 159 { 512, 5 }, 160 { 768, 6 }, 161 { 1024, 7 }, 162 { 1408, 8 }, 163 { 1536, 9 }, 164}; 165 166static struct { 167 int rate; 168 int sample_rate; 169} sample_rates[] = { 170 { 8000, 0 }, 171 { 11025, 1 }, 172 { 12000, 1 }, 173 { 16000, 2 }, 174 { 22050, 3 }, 175 { 24000, 3 }, 176 { 32000, 4 }, 177 { 44100, 5 }, 178 { 48000, 5 }, 179}; 180 181static struct { 182 int div; /* *10 due to .5s */ 183 int bclk_div; 184} bclk_divs[] = { 185 { 10, 0 }, 186 { 15, 1 }, 187 { 20, 2 }, 188 { 30, 3 }, 189 { 40, 4 }, 190 { 55, 5 }, 191 { 60, 6 }, 192 { 80, 7 }, 193 { 110, 8 }, 194 { 120, 9 }, 195 { 160, 10 }, 196 { 220, 11 }, 197 { 240, 12 }, 198 { 320, 13 }, 199 { 440, 14 }, 200 { 480, 15 }, 201}; 202 203struct wm8993_priv { 204 struct wm_hubs_data hubs_data; 205 struct device *dev; 206 struct regmap *regmap; 207 struct regulator_bulk_data supplies[WM8993_NUM_SUPPLIES]; 208 struct wm8993_platform_data pdata; 209 struct completion fll_lock; 210 int master; 211 int sysclk_source; 212 int tdm_slots; 213 int tdm_width; 214 unsigned int mclk_rate; 215 unsigned int sysclk_rate; 216 unsigned int fs; 217 unsigned int bclk; 218 unsigned int fll_fref; 219 unsigned int fll_fout; 220 int fll_src; 221}; 222 223static bool wm8993_volatile(struct device *dev, unsigned int reg) 224{ 225 switch (reg) { 226 case WM8993_SOFTWARE_RESET: 227 case WM8993_GPIO_CTRL_1: 228 case WM8993_DC_SERVO_0: 229 case WM8993_DC_SERVO_READBACK_0: 230 case WM8993_DC_SERVO_READBACK_1: 231 case WM8993_DC_SERVO_READBACK_2: 232 return true; 233 default: 234 return false; 235 } 236} 237 238static bool wm8993_readable(struct device *dev, unsigned int reg) 239{ 240 switch (reg) { 241 case WM8993_SOFTWARE_RESET: 242 case WM8993_POWER_MANAGEMENT_1: 243 case WM8993_POWER_MANAGEMENT_2: 244 case WM8993_POWER_MANAGEMENT_3: 245 case WM8993_AUDIO_INTERFACE_1: 246 case WM8993_AUDIO_INTERFACE_2: 247 case WM8993_CLOCKING_1: 248 case WM8993_CLOCKING_2: 249 case WM8993_AUDIO_INTERFACE_3: 250 case WM8993_AUDIO_INTERFACE_4: 251 case WM8993_DAC_CTRL: 252 case WM8993_LEFT_DAC_DIGITAL_VOLUME: 253 case WM8993_RIGHT_DAC_DIGITAL_VOLUME: 254 case WM8993_DIGITAL_SIDE_TONE: 255 case WM8993_ADC_CTRL: 256 case WM8993_LEFT_ADC_DIGITAL_VOLUME: 257 case WM8993_RIGHT_ADC_DIGITAL_VOLUME: 258 case WM8993_GPIO_CTRL_1: 259 case WM8993_GPIO1: 260 case WM8993_IRQ_DEBOUNCE: 261 case WM8993_GPIOCTRL_2: 262 case WM8993_GPIO_POL: 263 case WM8993_LEFT_LINE_INPUT_1_2_VOLUME: 264 case WM8993_LEFT_LINE_INPUT_3_4_VOLUME: 265 case WM8993_RIGHT_LINE_INPUT_1_2_VOLUME: 266 case WM8993_RIGHT_LINE_INPUT_3_4_VOLUME: 267 case WM8993_LEFT_OUTPUT_VOLUME: 268 case WM8993_RIGHT_OUTPUT_VOLUME: 269 case WM8993_LINE_OUTPUTS_VOLUME: 270 case WM8993_HPOUT2_VOLUME: 271 case WM8993_LEFT_OPGA_VOLUME: 272 case WM8993_RIGHT_OPGA_VOLUME: 273 case WM8993_SPKMIXL_ATTENUATION: 274 case WM8993_SPKMIXR_ATTENUATION: 275 case WM8993_SPKOUT_MIXERS: 276 case WM8993_SPKOUT_BOOST: 277 case WM8993_SPEAKER_VOLUME_LEFT: 278 case WM8993_SPEAKER_VOLUME_RIGHT: 279 case WM8993_INPUT_MIXER2: 280 case WM8993_INPUT_MIXER3: 281 case WM8993_INPUT_MIXER4: 282 case WM8993_INPUT_MIXER5: 283 case WM8993_INPUT_MIXER6: 284 case WM8993_OUTPUT_MIXER1: 285 case WM8993_OUTPUT_MIXER2: 286 case WM8993_OUTPUT_MIXER3: 287 case WM8993_OUTPUT_MIXER4: 288 case WM8993_OUTPUT_MIXER5: 289 case WM8993_OUTPUT_MIXER6: 290 case WM8993_HPOUT2_MIXER: 291 case WM8993_LINE_MIXER1: 292 case WM8993_LINE_MIXER2: 293 case WM8993_SPEAKER_MIXER: 294 case WM8993_ADDITIONAL_CONTROL: 295 case WM8993_ANTIPOP1: 296 case WM8993_ANTIPOP2: 297 case WM8993_MICBIAS: 298 case WM8993_FLL_CONTROL_1: 299 case WM8993_FLL_CONTROL_2: 300 case WM8993_FLL_CONTROL_3: 301 case WM8993_FLL_CONTROL_4: 302 case WM8993_FLL_CONTROL_5: 303 case WM8993_CLOCKING_3: 304 case WM8993_CLOCKING_4: 305 case WM8993_MW_SLAVE_CONTROL: 306 case WM8993_BUS_CONTROL_1: 307 case WM8993_WRITE_SEQUENCER_0: 308 case WM8993_WRITE_SEQUENCER_1: 309 case WM8993_WRITE_SEQUENCER_2: 310 case WM8993_WRITE_SEQUENCER_3: 311 case WM8993_WRITE_SEQUENCER_4: 312 case WM8993_WRITE_SEQUENCER_5: 313 case WM8993_CHARGE_PUMP_1: 314 case WM8993_CLASS_W_0: 315 case WM8993_DC_SERVO_0: 316 case WM8993_DC_SERVO_1: 317 case WM8993_DC_SERVO_3: 318 case WM8993_DC_SERVO_READBACK_0: 319 case WM8993_DC_SERVO_READBACK_1: 320 case WM8993_DC_SERVO_READBACK_2: 321 case WM8993_ANALOGUE_HP_0: 322 case WM8993_EQ1: 323 case WM8993_EQ2: 324 case WM8993_EQ3: 325 case WM8993_EQ4: 326 case WM8993_EQ5: 327 case WM8993_EQ6: 328 case WM8993_EQ7: 329 case WM8993_EQ8: 330 case WM8993_EQ9: 331 case WM8993_EQ10: 332 case WM8993_EQ11: 333 case WM8993_EQ12: 334 case WM8993_EQ13: 335 case WM8993_EQ14: 336 case WM8993_EQ15: 337 case WM8993_EQ16: 338 case WM8993_EQ17: 339 case WM8993_EQ18: 340 case WM8993_EQ19: 341 case WM8993_EQ20: 342 case WM8993_EQ21: 343 case WM8993_EQ22: 344 case WM8993_EQ23: 345 case WM8993_EQ24: 346 case WM8993_DIGITAL_PULLS: 347 case WM8993_DRC_CONTROL_1: 348 case WM8993_DRC_CONTROL_2: 349 case WM8993_DRC_CONTROL_3: 350 case WM8993_DRC_CONTROL_4: 351 return true; 352 default: 353 return false; 354 } 355} 356 357struct _fll_div { 358 u16 fll_fratio; 359 u16 fll_outdiv; 360 u16 fll_clk_ref_div; 361 u16 n; 362 u16 k; 363}; 364 365/* The size in bits of the FLL divide multiplied by 10 366 * to allow rounding later */ 367#define FIXED_FLL_SIZE ((1 << 16) * 10) 368 369static struct { 370 unsigned int min; 371 unsigned int max; 372 u16 fll_fratio; 373 int ratio; 374} fll_fratios[] = { 375 { 0, 64000, 4, 16 }, 376 { 64000, 128000, 3, 8 }, 377 { 128000, 256000, 2, 4 }, 378 { 256000, 1000000, 1, 2 }, 379 { 1000000, 13500000, 0, 1 }, 380}; 381 382static int fll_factors(struct _fll_div *fll_div, unsigned int Fref, 383 unsigned int Fout) 384{ 385 u64 Kpart; 386 unsigned int K, Ndiv, Nmod, target; 387 unsigned int div; 388 int i; 389 390 /* Fref must be <=13.5MHz */ 391 div = 1; 392 fll_div->fll_clk_ref_div = 0; 393 while ((Fref / div) > 13500000) { 394 div *= 2; 395 fll_div->fll_clk_ref_div++; 396 397 if (div > 8) { 398 pr_err("Can't scale %dMHz input down to <=13.5MHz\n", 399 Fref); 400 return -EINVAL; 401 } 402 } 403 404 pr_debug("Fref=%u Fout=%u\n", Fref, Fout); 405 406 /* Apply the division for our remaining calculations */ 407 Fref /= div; 408 409 /* Fvco should be 90-100MHz; don't check the upper bound */ 410 div = 0; 411 target = Fout * 2; 412 while (target < 90000000) { 413 div++; 414 target *= 2; 415 if (div > 7) { 416 pr_err("Unable to find FLL_OUTDIV for Fout=%uHz\n", 417 Fout); 418 return -EINVAL; 419 } 420 } 421 fll_div->fll_outdiv = div; 422 423 pr_debug("Fvco=%dHz\n", target); 424 425 /* Find an appropriate FLL_FRATIO and factor it out of the target */ 426 for (i = 0; i < ARRAY_SIZE(fll_fratios); i++) { 427 if (fll_fratios[i].min <= Fref && Fref <= fll_fratios[i].max) { 428 fll_div->fll_fratio = fll_fratios[i].fll_fratio; 429 target /= fll_fratios[i].ratio; 430 break; 431 } 432 } 433 if (i == ARRAY_SIZE(fll_fratios)) { 434 pr_err("Unable to find FLL_FRATIO for Fref=%uHz\n", Fref); 435 return -EINVAL; 436 } 437 438 /* Now, calculate N.K */ 439 Ndiv = target / Fref; 440 441 fll_div->n = Ndiv; 442 Nmod = target % Fref; 443 pr_debug("Nmod=%d\n", Nmod); 444 445 /* Calculate fractional part - scale up so we can round. */ 446 Kpart = FIXED_FLL_SIZE * (long long)Nmod; 447 448 do_div(Kpart, Fref); 449 450 K = Kpart & 0xFFFFFFFF; 451 452 if ((K % 10) >= 5) 453 K += 5; 454 455 /* Move down to proper range now rounding is done */ 456 fll_div->k = K / 10; 457 458 pr_debug("N=%x K=%x FLL_FRATIO=%x FLL_OUTDIV=%x FLL_CLK_REF_DIV=%x\n", 459 fll_div->n, fll_div->k, 460 fll_div->fll_fratio, fll_div->fll_outdiv, 461 fll_div->fll_clk_ref_div); 462 463 return 0; 464} 465 466static int _wm8993_set_fll(struct snd_soc_component *component, int fll_id, int source, 467 unsigned int Fref, unsigned int Fout) 468{ 469 struct wm8993_priv *wm8993 = snd_soc_component_get_drvdata(component); 470 struct i2c_client *i2c = to_i2c_client(component->dev); 471 u16 reg1, reg4, reg5; 472 struct _fll_div fll_div; 473 unsigned int timeout; 474 int ret; 475 476 /* Any change? */ 477 if (Fref == wm8993->fll_fref && Fout == wm8993->fll_fout) 478 return 0; 479 480 /* Disable the FLL */ 481 if (Fout == 0) { 482 dev_dbg(component->dev, "FLL disabled\n"); 483 wm8993->fll_fref = 0; 484 wm8993->fll_fout = 0; 485 486 reg1 = snd_soc_component_read(component, WM8993_FLL_CONTROL_1); 487 reg1 &= ~WM8993_FLL_ENA; 488 snd_soc_component_write(component, WM8993_FLL_CONTROL_1, reg1); 489 490 return 0; 491 } 492 493 ret = fll_factors(&fll_div, Fref, Fout); 494 if (ret != 0) 495 return ret; 496 497 reg5 = snd_soc_component_read(component, WM8993_FLL_CONTROL_5); 498 reg5 &= ~WM8993_FLL_CLK_SRC_MASK; 499 500 switch (fll_id) { 501 case WM8993_FLL_MCLK: 502 break; 503 504 case WM8993_FLL_LRCLK: 505 reg5 |= 1; 506 break; 507 508 case WM8993_FLL_BCLK: 509 reg5 |= 2; 510 break; 511 512 default: 513 dev_err(component->dev, "Unknown FLL ID %d\n", fll_id); 514 return -EINVAL; 515 } 516 517 /* Any FLL configuration change requires that the FLL be 518 * disabled first. */ 519 reg1 = snd_soc_component_read(component, WM8993_FLL_CONTROL_1); 520 reg1 &= ~WM8993_FLL_ENA; 521 snd_soc_component_write(component, WM8993_FLL_CONTROL_1, reg1); 522 523 /* Apply the configuration */ 524 if (fll_div.k) 525 reg1 |= WM8993_FLL_FRAC_MASK; 526 else 527 reg1 &= ~WM8993_FLL_FRAC_MASK; 528 snd_soc_component_write(component, WM8993_FLL_CONTROL_1, reg1); 529 530 snd_soc_component_write(component, WM8993_FLL_CONTROL_2, 531 (fll_div.fll_outdiv << WM8993_FLL_OUTDIV_SHIFT) | 532 (fll_div.fll_fratio << WM8993_FLL_FRATIO_SHIFT)); 533 snd_soc_component_write(component, WM8993_FLL_CONTROL_3, fll_div.k); 534 535 reg4 = snd_soc_component_read(component, WM8993_FLL_CONTROL_4); 536 reg4 &= ~WM8993_FLL_N_MASK; 537 reg4 |= fll_div.n << WM8993_FLL_N_SHIFT; 538 snd_soc_component_write(component, WM8993_FLL_CONTROL_4, reg4); 539 540 reg5 &= ~WM8993_FLL_CLK_REF_DIV_MASK; 541 reg5 |= fll_div.fll_clk_ref_div << WM8993_FLL_CLK_REF_DIV_SHIFT; 542 snd_soc_component_write(component, WM8993_FLL_CONTROL_5, reg5); 543 544 /* If we've got an interrupt wired up make sure we get it */ 545 if (i2c->irq) 546 timeout = msecs_to_jiffies(20); 547 else if (Fref < 1000000) 548 timeout = msecs_to_jiffies(3); 549 else 550 timeout = msecs_to_jiffies(1); 551 552 try_wait_for_completion(&wm8993->fll_lock); 553 554 /* Enable the FLL */ 555 snd_soc_component_write(component, WM8993_FLL_CONTROL_1, reg1 | WM8993_FLL_ENA); 556 557 timeout = wait_for_completion_timeout(&wm8993->fll_lock, timeout); 558 if (i2c->irq && !timeout) 559 dev_warn(component->dev, "Timed out waiting for FLL\n"); 560 561 dev_dbg(component->dev, "FLL enabled at %dHz->%dHz\n", Fref, Fout); 562 563 wm8993->fll_fref = Fref; 564 wm8993->fll_fout = Fout; 565 wm8993->fll_src = source; 566 567 return 0; 568} 569 570static int wm8993_set_fll(struct snd_soc_dai *dai, int fll_id, int source, 571 unsigned int Fref, unsigned int Fout) 572{ 573 return _wm8993_set_fll(dai->component, fll_id, source, Fref, Fout); 574} 575 576static int configure_clock(struct snd_soc_component *component) 577{ 578 struct wm8993_priv *wm8993 = snd_soc_component_get_drvdata(component); 579 unsigned int reg; 580 581 /* This should be done on init() for bypass paths */ 582 switch (wm8993->sysclk_source) { 583 case WM8993_SYSCLK_MCLK: 584 dev_dbg(component->dev, "Using %dHz MCLK\n", wm8993->mclk_rate); 585 586 reg = snd_soc_component_read(component, WM8993_CLOCKING_2); 587 reg &= ~(WM8993_MCLK_DIV | WM8993_SYSCLK_SRC); 588 if (wm8993->mclk_rate > 13500000) { 589 reg |= WM8993_MCLK_DIV; 590 wm8993->sysclk_rate = wm8993->mclk_rate / 2; 591 } else { 592 reg &= ~WM8993_MCLK_DIV; 593 wm8993->sysclk_rate = wm8993->mclk_rate; 594 } 595 snd_soc_component_write(component, WM8993_CLOCKING_2, reg); 596 break; 597 598 case WM8993_SYSCLK_FLL: 599 dev_dbg(component->dev, "Using %dHz FLL clock\n", 600 wm8993->fll_fout); 601 602 reg = snd_soc_component_read(component, WM8993_CLOCKING_2); 603 reg |= WM8993_SYSCLK_SRC; 604 if (wm8993->fll_fout > 13500000) { 605 reg |= WM8993_MCLK_DIV; 606 wm8993->sysclk_rate = wm8993->fll_fout / 2; 607 } else { 608 reg &= ~WM8993_MCLK_DIV; 609 wm8993->sysclk_rate = wm8993->fll_fout; 610 } 611 snd_soc_component_write(component, WM8993_CLOCKING_2, reg); 612 break; 613 614 default: 615 dev_err(component->dev, "System clock not configured\n"); 616 return -EINVAL; 617 } 618 619 dev_dbg(component->dev, "CLK_SYS is %dHz\n", wm8993->sysclk_rate); 620 621 return 0; 622} 623 624static const DECLARE_TLV_DB_SCALE(sidetone_tlv, -3600, 300, 0); 625static const DECLARE_TLV_DB_SCALE(drc_comp_threash, -4500, 75, 0); 626static const DECLARE_TLV_DB_SCALE(drc_comp_amp, -2250, 75, 0); 627static const DECLARE_TLV_DB_SCALE(drc_min_tlv, -1800, 600, 0); 628static const DECLARE_TLV_DB_RANGE(drc_max_tlv, 629 0, 2, TLV_DB_SCALE_ITEM(1200, 600, 0), 630 3, 3, TLV_DB_SCALE_ITEM(3600, 0, 0) 631); 632static const DECLARE_TLV_DB_SCALE(drc_qr_tlv, 1200, 600, 0); 633static const DECLARE_TLV_DB_SCALE(drc_startup_tlv, -1800, 300, 0); 634static const DECLARE_TLV_DB_SCALE(eq_tlv, -1200, 100, 0); 635static const DECLARE_TLV_DB_SCALE(digital_tlv, -7200, 75, 1); 636static const DECLARE_TLV_DB_SCALE(dac_boost_tlv, 0, 600, 0); 637 638static const char *dac_deemph_text[] = { 639 "None", 640 "32kHz", 641 "44.1kHz", 642 "48kHz", 643}; 644 645static SOC_ENUM_SINGLE_DECL(dac_deemph, 646 WM8993_DAC_CTRL, 4, dac_deemph_text); 647 648static const char *adc_hpf_text[] = { 649 "Hi-Fi", 650 "Voice 1", 651 "Voice 2", 652 "Voice 3", 653}; 654 655static SOC_ENUM_SINGLE_DECL(adc_hpf, 656 WM8993_ADC_CTRL, 5, adc_hpf_text); 657 658static const char *drc_path_text[] = { 659 "ADC", 660 "DAC" 661}; 662 663static SOC_ENUM_SINGLE_DECL(drc_path, 664 WM8993_DRC_CONTROL_1, 14, drc_path_text); 665 666static const char *drc_r0_text[] = { 667 "1", 668 "1/2", 669 "1/4", 670 "1/8", 671 "1/16", 672 "0", 673}; 674 675static SOC_ENUM_SINGLE_DECL(drc_r0, 676 WM8993_DRC_CONTROL_3, 8, drc_r0_text); 677 678static const char *drc_r1_text[] = { 679 "1", 680 "1/2", 681 "1/4", 682 "1/8", 683 "0", 684}; 685 686static SOC_ENUM_SINGLE_DECL(drc_r1, 687 WM8993_DRC_CONTROL_4, 13, drc_r1_text); 688 689static const char *drc_attack_text[] = { 690 "Reserved", 691 "181us", 692 "363us", 693 "726us", 694 "1.45ms", 695 "2.9ms", 696 "5.8ms", 697 "11.6ms", 698 "23.2ms", 699 "46.4ms", 700 "92.8ms", 701 "185.6ms", 702}; 703 704static SOC_ENUM_SINGLE_DECL(drc_attack, 705 WM8993_DRC_CONTROL_2, 12, drc_attack_text); 706 707static const char *drc_decay_text[] = { 708 "186ms", 709 "372ms", 710 "743ms", 711 "1.49s", 712 "2.97ms", 713 "5.94ms", 714 "11.89ms", 715 "23.78ms", 716 "47.56ms", 717}; 718 719static SOC_ENUM_SINGLE_DECL(drc_decay, 720 WM8993_DRC_CONTROL_2, 8, drc_decay_text); 721 722static const char *drc_ff_text[] = { 723 "5 samples", 724 "9 samples", 725}; 726 727static SOC_ENUM_SINGLE_DECL(drc_ff, 728 WM8993_DRC_CONTROL_3, 7, drc_ff_text); 729 730static const char *drc_qr_rate_text[] = { 731 "0.725ms", 732 "1.45ms", 733 "5.8ms", 734}; 735 736static SOC_ENUM_SINGLE_DECL(drc_qr_rate, 737 WM8993_DRC_CONTROL_3, 0, drc_qr_rate_text); 738 739static const char *drc_smooth_text[] = { 740 "Low", 741 "Medium", 742 "High", 743}; 744 745static SOC_ENUM_SINGLE_DECL(drc_smooth, 746 WM8993_DRC_CONTROL_1, 4, drc_smooth_text); 747 748static const struct snd_kcontrol_new wm8993_snd_controls[] = { 749SOC_DOUBLE_TLV("Digital Sidetone Volume", WM8993_DIGITAL_SIDE_TONE, 750 5, 9, 12, 0, sidetone_tlv), 751 752SOC_SINGLE("DRC Switch", WM8993_DRC_CONTROL_1, 15, 1, 0), 753SOC_ENUM("DRC Path", drc_path), 754SOC_SINGLE_TLV("DRC Compressor Threshold Volume", WM8993_DRC_CONTROL_2, 755 2, 60, 1, drc_comp_threash), 756SOC_SINGLE_TLV("DRC Compressor Amplitude Volume", WM8993_DRC_CONTROL_3, 757 11, 30, 1, drc_comp_amp), 758SOC_ENUM("DRC R0", drc_r0), 759SOC_ENUM("DRC R1", drc_r1), 760SOC_SINGLE_TLV("DRC Minimum Volume", WM8993_DRC_CONTROL_1, 2, 3, 1, 761 drc_min_tlv), 762SOC_SINGLE_TLV("DRC Maximum Volume", WM8993_DRC_CONTROL_1, 0, 3, 0, 763 drc_max_tlv), 764SOC_ENUM("DRC Attack Rate", drc_attack), 765SOC_ENUM("DRC Decay Rate", drc_decay), 766SOC_ENUM("DRC FF Delay", drc_ff), 767SOC_SINGLE("DRC Anti-clip Switch", WM8993_DRC_CONTROL_1, 9, 1, 0), 768SOC_SINGLE("DRC Quick Release Switch", WM8993_DRC_CONTROL_1, 10, 1, 0), 769SOC_SINGLE_TLV("DRC Quick Release Volume", WM8993_DRC_CONTROL_3, 2, 3, 0, 770 drc_qr_tlv), 771SOC_ENUM("DRC Quick Release Rate", drc_qr_rate), 772SOC_SINGLE("DRC Smoothing Switch", WM8993_DRC_CONTROL_1, 11, 1, 0), 773SOC_SINGLE("DRC Smoothing Hysteresis Switch", WM8993_DRC_CONTROL_1, 8, 1, 0), 774SOC_ENUM("DRC Smoothing Hysteresis Threshold", drc_smooth), 775SOC_SINGLE_TLV("DRC Startup Volume", WM8993_DRC_CONTROL_4, 8, 18, 0, 776 drc_startup_tlv), 777 778SOC_SINGLE("EQ Switch", WM8993_EQ1, 0, 1, 0), 779 780SOC_DOUBLE_R_TLV("Capture Volume", WM8993_LEFT_ADC_DIGITAL_VOLUME, 781 WM8993_RIGHT_ADC_DIGITAL_VOLUME, 1, 96, 0, digital_tlv), 782SOC_SINGLE("ADC High Pass Filter Switch", WM8993_ADC_CTRL, 8, 1, 0), 783SOC_ENUM("ADC High Pass Filter Mode", adc_hpf), 784 785SOC_DOUBLE_R_TLV("Playback Volume", WM8993_LEFT_DAC_DIGITAL_VOLUME, 786 WM8993_RIGHT_DAC_DIGITAL_VOLUME, 1, 96, 0, digital_tlv), 787SOC_SINGLE_TLV("Playback Boost Volume", WM8993_AUDIO_INTERFACE_2, 10, 3, 0, 788 dac_boost_tlv), 789SOC_ENUM("DAC Deemphasis", dac_deemph), 790 791SOC_SINGLE_TLV("SPKL DAC Volume", WM8993_SPKMIXL_ATTENUATION, 792 2, 1, 1, wm_hubs_spkmix_tlv), 793 794SOC_SINGLE_TLV("SPKR DAC Volume", WM8993_SPKMIXR_ATTENUATION, 795 2, 1, 1, wm_hubs_spkmix_tlv), 796}; 797 798static const struct snd_kcontrol_new wm8993_eq_controls[] = { 799SOC_SINGLE_TLV("EQ1 Volume", WM8993_EQ2, 0, 24, 0, eq_tlv), 800SOC_SINGLE_TLV("EQ2 Volume", WM8993_EQ3, 0, 24, 0, eq_tlv), 801SOC_SINGLE_TLV("EQ3 Volume", WM8993_EQ4, 0, 24, 0, eq_tlv), 802SOC_SINGLE_TLV("EQ4 Volume", WM8993_EQ5, 0, 24, 0, eq_tlv), 803SOC_SINGLE_TLV("EQ5 Volume", WM8993_EQ6, 0, 24, 0, eq_tlv), 804}; 805 806static int clk_sys_event(struct snd_soc_dapm_widget *w, 807 struct snd_kcontrol *kcontrol, int event) 808{ 809 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm); 810 811 switch (event) { 812 case SND_SOC_DAPM_PRE_PMU: 813 return configure_clock(component); 814 815 case SND_SOC_DAPM_POST_PMD: 816 break; 817 } 818 819 return 0; 820} 821 822static const struct snd_kcontrol_new left_speaker_mixer[] = { 823SOC_DAPM_SINGLE("Input Switch", WM8993_SPEAKER_MIXER, 7, 1, 0), 824SOC_DAPM_SINGLE("IN1LP Switch", WM8993_SPEAKER_MIXER, 5, 1, 0), 825SOC_DAPM_SINGLE("Output Switch", WM8993_SPEAKER_MIXER, 3, 1, 0), 826SOC_DAPM_SINGLE("DAC Switch", WM8993_SPEAKER_MIXER, 6, 1, 0), 827}; 828 829static const struct snd_kcontrol_new right_speaker_mixer[] = { 830SOC_DAPM_SINGLE("Input Switch", WM8993_SPEAKER_MIXER, 6, 1, 0), 831SOC_DAPM_SINGLE("IN1RP Switch", WM8993_SPEAKER_MIXER, 4, 1, 0), 832SOC_DAPM_SINGLE("Output Switch", WM8993_SPEAKER_MIXER, 2, 1, 0), 833SOC_DAPM_SINGLE("DAC Switch", WM8993_SPEAKER_MIXER, 0, 1, 0), 834}; 835 836static const char *aif_text[] = { 837 "Left", "Right" 838}; 839 840static SOC_ENUM_SINGLE_DECL(aifoutl_enum, 841 WM8993_AUDIO_INTERFACE_1, 15, aif_text); 842 843static const struct snd_kcontrol_new aifoutl_mux = 844 SOC_DAPM_ENUM("AIFOUTL Mux", aifoutl_enum); 845 846static SOC_ENUM_SINGLE_DECL(aifoutr_enum, 847 WM8993_AUDIO_INTERFACE_1, 14, aif_text); 848 849static const struct snd_kcontrol_new aifoutr_mux = 850 SOC_DAPM_ENUM("AIFOUTR Mux", aifoutr_enum); 851 852static SOC_ENUM_SINGLE_DECL(aifinl_enum, 853 WM8993_AUDIO_INTERFACE_2, 15, aif_text); 854 855static const struct snd_kcontrol_new aifinl_mux = 856 SOC_DAPM_ENUM("AIFINL Mux", aifinl_enum); 857 858static SOC_ENUM_SINGLE_DECL(aifinr_enum, 859 WM8993_AUDIO_INTERFACE_2, 14, aif_text); 860 861static const struct snd_kcontrol_new aifinr_mux = 862 SOC_DAPM_ENUM("AIFINR Mux", aifinr_enum); 863 864static const char *sidetone_text[] = { 865 "None", "Left", "Right" 866}; 867 868static SOC_ENUM_SINGLE_DECL(sidetonel_enum, 869 WM8993_DIGITAL_SIDE_TONE, 2, sidetone_text); 870 871static const struct snd_kcontrol_new sidetonel_mux = 872 SOC_DAPM_ENUM("Left Sidetone", sidetonel_enum); 873 874static SOC_ENUM_SINGLE_DECL(sidetoner_enum, 875 WM8993_DIGITAL_SIDE_TONE, 0, sidetone_text); 876 877static const struct snd_kcontrol_new sidetoner_mux = 878 SOC_DAPM_ENUM("Right Sidetone", sidetoner_enum); 879 880static const struct snd_soc_dapm_widget wm8993_dapm_widgets[] = { 881SND_SOC_DAPM_SUPPLY("CLK_SYS", WM8993_BUS_CONTROL_1, 1, 0, clk_sys_event, 882 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD), 883SND_SOC_DAPM_SUPPLY("TOCLK", WM8993_CLOCKING_1, 14, 0, NULL, 0), 884SND_SOC_DAPM_SUPPLY("CLK_DSP", WM8993_CLOCKING_3, 0, 0, NULL, 0), 885SND_SOC_DAPM_SUPPLY("VMID", SND_SOC_NOPM, 0, 0, NULL, 0), 886 887SND_SOC_DAPM_ADC("ADCL", NULL, WM8993_POWER_MANAGEMENT_2, 1, 0), 888SND_SOC_DAPM_ADC("ADCR", NULL, WM8993_POWER_MANAGEMENT_2, 0, 0), 889 890SND_SOC_DAPM_MUX("AIFOUTL Mux", SND_SOC_NOPM, 0, 0, &aifoutl_mux), 891SND_SOC_DAPM_MUX("AIFOUTR Mux", SND_SOC_NOPM, 0, 0, &aifoutr_mux), 892 893SND_SOC_DAPM_AIF_OUT("AIFOUTL", "Capture", 0, SND_SOC_NOPM, 0, 0), 894SND_SOC_DAPM_AIF_OUT("AIFOUTR", "Capture", 1, SND_SOC_NOPM, 0, 0), 895 896SND_SOC_DAPM_AIF_IN("AIFINL", "Playback", 0, SND_SOC_NOPM, 0, 0), 897SND_SOC_DAPM_AIF_IN("AIFINR", "Playback", 1, SND_SOC_NOPM, 0, 0), 898 899SND_SOC_DAPM_MUX("DACL Mux", SND_SOC_NOPM, 0, 0, &aifinl_mux), 900SND_SOC_DAPM_MUX("DACR Mux", SND_SOC_NOPM, 0, 0, &aifinr_mux), 901 902SND_SOC_DAPM_MUX("DACL Sidetone", SND_SOC_NOPM, 0, 0, &sidetonel_mux), 903SND_SOC_DAPM_MUX("DACR Sidetone", SND_SOC_NOPM, 0, 0, &sidetoner_mux), 904 905SND_SOC_DAPM_DAC("DACL", NULL, WM8993_POWER_MANAGEMENT_3, 1, 0), 906SND_SOC_DAPM_DAC("DACR", NULL, WM8993_POWER_MANAGEMENT_3, 0, 0), 907 908SND_SOC_DAPM_MUX("Left Headphone Mux", SND_SOC_NOPM, 0, 0, &wm_hubs_hpl_mux), 909SND_SOC_DAPM_MUX("Right Headphone Mux", SND_SOC_NOPM, 0, 0, &wm_hubs_hpr_mux), 910 911SND_SOC_DAPM_MIXER("SPKL", WM8993_POWER_MANAGEMENT_3, 8, 0, 912 left_speaker_mixer, ARRAY_SIZE(left_speaker_mixer)), 913SND_SOC_DAPM_MIXER("SPKR", WM8993_POWER_MANAGEMENT_3, 9, 0, 914 right_speaker_mixer, ARRAY_SIZE(right_speaker_mixer)), 915SND_SOC_DAPM_PGA("Direct Voice", SND_SOC_NOPM, 0, 0, NULL, 0), 916}; 917 918static const struct snd_soc_dapm_route routes[] = { 919 { "MICBIAS1", NULL, "VMID" }, 920 { "MICBIAS2", NULL, "VMID" }, 921 922 { "ADCL", NULL, "CLK_SYS" }, 923 { "ADCL", NULL, "CLK_DSP" }, 924 { "ADCR", NULL, "CLK_SYS" }, 925 { "ADCR", NULL, "CLK_DSP" }, 926 927 { "AIFOUTL Mux", "Left", "ADCL" }, 928 { "AIFOUTL Mux", "Right", "ADCR" }, 929 { "AIFOUTR Mux", "Left", "ADCL" }, 930 { "AIFOUTR Mux", "Right", "ADCR" }, 931 932 { "AIFOUTL", NULL, "AIFOUTL Mux" }, 933 { "AIFOUTR", NULL, "AIFOUTR Mux" }, 934 935 { "DACL Mux", "Left", "AIFINL" }, 936 { "DACL Mux", "Right", "AIFINR" }, 937 { "DACR Mux", "Left", "AIFINL" }, 938 { "DACR Mux", "Right", "AIFINR" }, 939 940 { "DACL Sidetone", "Left", "ADCL" }, 941 { "DACL Sidetone", "Right", "ADCR" }, 942 { "DACR Sidetone", "Left", "ADCL" }, 943 { "DACR Sidetone", "Right", "ADCR" }, 944 945 { "DACL", NULL, "CLK_SYS" }, 946 { "DACL", NULL, "CLK_DSP" }, 947 { "DACL", NULL, "DACL Mux" }, 948 { "DACL", NULL, "DACL Sidetone" }, 949 { "DACR", NULL, "CLK_SYS" }, 950 { "DACR", NULL, "CLK_DSP" }, 951 { "DACR", NULL, "DACR Mux" }, 952 { "DACR", NULL, "DACR Sidetone" }, 953 954 { "Left Output Mixer", "DAC Switch", "DACL" }, 955 956 { "Right Output Mixer", "DAC Switch", "DACR" }, 957 958 { "Left Output PGA", NULL, "CLK_SYS" }, 959 960 { "Right Output PGA", NULL, "CLK_SYS" }, 961 962 { "SPKL", "DAC Switch", "DACL" }, 963 { "SPKL", NULL, "CLK_SYS" }, 964 965 { "SPKR", "DAC Switch", "DACR" }, 966 { "SPKR", NULL, "CLK_SYS" }, 967 968 { "Left Headphone Mux", "DAC", "DACL" }, 969 { "Right Headphone Mux", "DAC", "DACR" }, 970}; 971 972static int wm8993_set_bias_level(struct snd_soc_component *component, 973 enum snd_soc_bias_level level) 974{ 975 struct wm8993_priv *wm8993 = snd_soc_component_get_drvdata(component); 976 int ret; 977 978 wm_hubs_set_bias_level(component, level); 979 980 switch (level) { 981 case SND_SOC_BIAS_ON: 982 case SND_SOC_BIAS_PREPARE: 983 /* VMID=2*40k */ 984 snd_soc_component_update_bits(component, WM8993_POWER_MANAGEMENT_1, 985 WM8993_VMID_SEL_MASK, 0x2); 986 snd_soc_component_update_bits(component, WM8993_POWER_MANAGEMENT_2, 987 WM8993_TSHUT_ENA, WM8993_TSHUT_ENA); 988 break; 989 990 case SND_SOC_BIAS_STANDBY: 991 if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF) { 992 ret = regulator_bulk_enable(ARRAY_SIZE(wm8993->supplies), 993 wm8993->supplies); 994 if (ret != 0) 995 return ret; 996 997 regcache_cache_only(wm8993->regmap, false); 998 regcache_sync(wm8993->regmap); 999 1000 wm_hubs_vmid_ena(component); 1001 1002 /* Bring up VMID with fast soft start */ 1003 snd_soc_component_update_bits(component, WM8993_ANTIPOP2, 1004 WM8993_STARTUP_BIAS_ENA | 1005 WM8993_VMID_BUF_ENA | 1006 WM8993_VMID_RAMP_MASK | 1007 WM8993_BIAS_SRC, 1008 WM8993_STARTUP_BIAS_ENA | 1009 WM8993_VMID_BUF_ENA | 1010 WM8993_VMID_RAMP_MASK | 1011 WM8993_BIAS_SRC); 1012 1013 /* If either line output is single ended we 1014 * need the VMID buffer */ 1015 if (!wm8993->pdata.lineout1_diff || 1016 !wm8993->pdata.lineout2_diff) 1017 snd_soc_component_update_bits(component, WM8993_ANTIPOP1, 1018 WM8993_LINEOUT_VMID_BUF_ENA, 1019 WM8993_LINEOUT_VMID_BUF_ENA); 1020 1021 /* VMID=2*40k */ 1022 snd_soc_component_update_bits(component, WM8993_POWER_MANAGEMENT_1, 1023 WM8993_VMID_SEL_MASK | 1024 WM8993_BIAS_ENA, 1025 WM8993_BIAS_ENA | 0x2); 1026 msleep(32); 1027 1028 /* Switch to normal bias */ 1029 snd_soc_component_update_bits(component, WM8993_ANTIPOP2, 1030 WM8993_BIAS_SRC | 1031 WM8993_STARTUP_BIAS_ENA, 0); 1032 } 1033 1034 /* VMID=2*240k */ 1035 snd_soc_component_update_bits(component, WM8993_POWER_MANAGEMENT_1, 1036 WM8993_VMID_SEL_MASK, 0x4); 1037 1038 snd_soc_component_update_bits(component, WM8993_POWER_MANAGEMENT_2, 1039 WM8993_TSHUT_ENA, 0); 1040 break; 1041 1042 case SND_SOC_BIAS_OFF: 1043 snd_soc_component_update_bits(component, WM8993_ANTIPOP1, 1044 WM8993_LINEOUT_VMID_BUF_ENA, 0); 1045 1046 snd_soc_component_update_bits(component, WM8993_POWER_MANAGEMENT_1, 1047 WM8993_VMID_SEL_MASK | WM8993_BIAS_ENA, 1048 0); 1049 1050 snd_soc_component_update_bits(component, WM8993_ANTIPOP2, 1051 WM8993_STARTUP_BIAS_ENA | 1052 WM8993_VMID_BUF_ENA | 1053 WM8993_VMID_RAMP_MASK | 1054 WM8993_BIAS_SRC, 0); 1055 1056 regcache_cache_only(wm8993->regmap, true); 1057 regcache_mark_dirty(wm8993->regmap); 1058 1059 regulator_bulk_disable(ARRAY_SIZE(wm8993->supplies), 1060 wm8993->supplies); 1061 break; 1062 } 1063 1064 return 0; 1065} 1066 1067static int wm8993_set_sysclk(struct snd_soc_dai *codec_dai, 1068 int clk_id, unsigned int freq, int dir) 1069{ 1070 struct snd_soc_component *component = codec_dai->component; 1071 struct wm8993_priv *wm8993 = snd_soc_component_get_drvdata(component); 1072 1073 switch (clk_id) { 1074 case WM8993_SYSCLK_MCLK: 1075 wm8993->mclk_rate = freq; 1076 fallthrough; 1077 case WM8993_SYSCLK_FLL: 1078 wm8993->sysclk_source = clk_id; 1079 break; 1080 1081 default: 1082 return -EINVAL; 1083 } 1084 1085 return 0; 1086} 1087 1088static int wm8993_set_dai_fmt(struct snd_soc_dai *dai, 1089 unsigned int fmt) 1090{ 1091 struct snd_soc_component *component = dai->component; 1092 struct wm8993_priv *wm8993 = snd_soc_component_get_drvdata(component); 1093 unsigned int aif1 = snd_soc_component_read(component, WM8993_AUDIO_INTERFACE_1); 1094 unsigned int aif4 = snd_soc_component_read(component, WM8993_AUDIO_INTERFACE_4); 1095 1096 aif1 &= ~(WM8993_BCLK_DIR | WM8993_AIF_BCLK_INV | 1097 WM8993_AIF_LRCLK_INV | WM8993_AIF_FMT_MASK); 1098 aif4 &= ~WM8993_LRCLK_DIR; 1099 1100 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) { 1101 case SND_SOC_DAIFMT_CBS_CFS: 1102 wm8993->master = 0; 1103 break; 1104 case SND_SOC_DAIFMT_CBS_CFM: 1105 aif4 |= WM8993_LRCLK_DIR; 1106 wm8993->master = 1; 1107 break; 1108 case SND_SOC_DAIFMT_CBM_CFS: 1109 aif1 |= WM8993_BCLK_DIR; 1110 wm8993->master = 1; 1111 break; 1112 case SND_SOC_DAIFMT_CBM_CFM: 1113 aif1 |= WM8993_BCLK_DIR; 1114 aif4 |= WM8993_LRCLK_DIR; 1115 wm8993->master = 1; 1116 break; 1117 default: 1118 return -EINVAL; 1119 } 1120 1121 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { 1122 case SND_SOC_DAIFMT_DSP_B: 1123 aif1 |= WM8993_AIF_LRCLK_INV; 1124 fallthrough; 1125 case SND_SOC_DAIFMT_DSP_A: 1126 aif1 |= 0x18; 1127 break; 1128 case SND_SOC_DAIFMT_I2S: 1129 aif1 |= 0x10; 1130 break; 1131 case SND_SOC_DAIFMT_RIGHT_J: 1132 break; 1133 case SND_SOC_DAIFMT_LEFT_J: 1134 aif1 |= 0x8; 1135 break; 1136 default: 1137 return -EINVAL; 1138 } 1139 1140 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) { 1141 case SND_SOC_DAIFMT_DSP_A: 1142 case SND_SOC_DAIFMT_DSP_B: 1143 /* frame inversion not valid for DSP modes */ 1144 switch (fmt & SND_SOC_DAIFMT_INV_MASK) { 1145 case SND_SOC_DAIFMT_NB_NF: 1146 break; 1147 case SND_SOC_DAIFMT_IB_NF: 1148 aif1 |= WM8993_AIF_BCLK_INV; 1149 break; 1150 default: 1151 return -EINVAL; 1152 } 1153 break; 1154 1155 case SND_SOC_DAIFMT_I2S: 1156 case SND_SOC_DAIFMT_RIGHT_J: 1157 case SND_SOC_DAIFMT_LEFT_J: 1158 switch (fmt & SND_SOC_DAIFMT_INV_MASK) { 1159 case SND_SOC_DAIFMT_NB_NF: 1160 break; 1161 case SND_SOC_DAIFMT_IB_IF: 1162 aif1 |= WM8993_AIF_BCLK_INV | WM8993_AIF_LRCLK_INV; 1163 break; 1164 case SND_SOC_DAIFMT_IB_NF: 1165 aif1 |= WM8993_AIF_BCLK_INV; 1166 break; 1167 case SND_SOC_DAIFMT_NB_IF: 1168 aif1 |= WM8993_AIF_LRCLK_INV; 1169 break; 1170 default: 1171 return -EINVAL; 1172 } 1173 break; 1174 default: 1175 return -EINVAL; 1176 } 1177 1178 snd_soc_component_write(component, WM8993_AUDIO_INTERFACE_1, aif1); 1179 snd_soc_component_write(component, WM8993_AUDIO_INTERFACE_4, aif4); 1180 1181 return 0; 1182} 1183 1184static int wm8993_hw_params(struct snd_pcm_substream *substream, 1185 struct snd_pcm_hw_params *params, 1186 struct snd_soc_dai *dai) 1187{ 1188 struct snd_soc_component *component = dai->component; 1189 struct wm8993_priv *wm8993 = snd_soc_component_get_drvdata(component); 1190 int ret, i, best, best_val, cur_val; 1191 unsigned int clocking1, clocking3, aif1, aif4; 1192 1193 clocking1 = snd_soc_component_read(component, WM8993_CLOCKING_1); 1194 clocking1 &= ~WM8993_BCLK_DIV_MASK; 1195 1196 clocking3 = snd_soc_component_read(component, WM8993_CLOCKING_3); 1197 clocking3 &= ~(WM8993_CLK_SYS_RATE_MASK | WM8993_SAMPLE_RATE_MASK); 1198 1199 aif1 = snd_soc_component_read(component, WM8993_AUDIO_INTERFACE_1); 1200 aif1 &= ~WM8993_AIF_WL_MASK; 1201 1202 aif4 = snd_soc_component_read(component, WM8993_AUDIO_INTERFACE_4); 1203 aif4 &= ~WM8993_LRCLK_RATE_MASK; 1204 1205 /* What BCLK do we need? */ 1206 wm8993->fs = params_rate(params); 1207 wm8993->bclk = 2 * wm8993->fs; 1208 if (wm8993->tdm_slots) { 1209 dev_dbg(component->dev, "Configuring for %d %d bit TDM slots\n", 1210 wm8993->tdm_slots, wm8993->tdm_width); 1211 wm8993->bclk *= wm8993->tdm_width * wm8993->tdm_slots; 1212 } else { 1213 switch (params_width(params)) { 1214 case 16: 1215 wm8993->bclk *= 16; 1216 break; 1217 case 20: 1218 wm8993->bclk *= 20; 1219 aif1 |= 0x8; 1220 break; 1221 case 24: 1222 wm8993->bclk *= 24; 1223 aif1 |= 0x10; 1224 break; 1225 case 32: 1226 wm8993->bclk *= 32; 1227 aif1 |= 0x18; 1228 break; 1229 default: 1230 return -EINVAL; 1231 } 1232 } 1233 1234 dev_dbg(component->dev, "Target BCLK is %dHz\n", wm8993->bclk); 1235 1236 ret = configure_clock(component); 1237 if (ret != 0) 1238 return ret; 1239 1240 /* Select nearest CLK_SYS_RATE */ 1241 best = 0; 1242 best_val = abs((wm8993->sysclk_rate / clk_sys_rates[0].ratio) 1243 - wm8993->fs); 1244 for (i = 1; i < ARRAY_SIZE(clk_sys_rates); i++) { 1245 cur_val = abs((wm8993->sysclk_rate / 1246 clk_sys_rates[i].ratio) - wm8993->fs); 1247 if (cur_val < best_val) { 1248 best = i; 1249 best_val = cur_val; 1250 } 1251 } 1252 dev_dbg(component->dev, "Selected CLK_SYS_RATIO of %d\n", 1253 clk_sys_rates[best].ratio); 1254 clocking3 |= (clk_sys_rates[best].clk_sys_rate 1255 << WM8993_CLK_SYS_RATE_SHIFT); 1256 1257 /* SAMPLE_RATE */ 1258 best = 0; 1259 best_val = abs(wm8993->fs - sample_rates[0].rate); 1260 for (i = 1; i < ARRAY_SIZE(sample_rates); i++) { 1261 /* Closest match */ 1262 cur_val = abs(wm8993->fs - sample_rates[i].rate); 1263 if (cur_val < best_val) { 1264 best = i; 1265 best_val = cur_val; 1266 } 1267 } 1268 dev_dbg(component->dev, "Selected SAMPLE_RATE of %dHz\n", 1269 sample_rates[best].rate); 1270 clocking3 |= (sample_rates[best].sample_rate 1271 << WM8993_SAMPLE_RATE_SHIFT); 1272 1273 /* BCLK_DIV */ 1274 best = 0; 1275 best_val = INT_MAX; 1276 for (i = 0; i < ARRAY_SIZE(bclk_divs); i++) { 1277 cur_val = ((wm8993->sysclk_rate * 10) / bclk_divs[i].div) 1278 - wm8993->bclk; 1279 if (cur_val < 0) /* Table is sorted */ 1280 break; 1281 if (cur_val < best_val) { 1282 best = i; 1283 best_val = cur_val; 1284 } 1285 } 1286 wm8993->bclk = (wm8993->sysclk_rate * 10) / bclk_divs[best].div; 1287 dev_dbg(component->dev, "Selected BCLK_DIV of %d for %dHz BCLK\n", 1288 bclk_divs[best].div, wm8993->bclk); 1289 clocking1 |= bclk_divs[best].bclk_div << WM8993_BCLK_DIV_SHIFT; 1290 1291 /* LRCLK is a simple fraction of BCLK */ 1292 dev_dbg(component->dev, "LRCLK_RATE is %d\n", wm8993->bclk / wm8993->fs); 1293 aif4 |= wm8993->bclk / wm8993->fs; 1294 1295 snd_soc_component_write(component, WM8993_CLOCKING_1, clocking1); 1296 snd_soc_component_write(component, WM8993_CLOCKING_3, clocking3); 1297 snd_soc_component_write(component, WM8993_AUDIO_INTERFACE_1, aif1); 1298 snd_soc_component_write(component, WM8993_AUDIO_INTERFACE_4, aif4); 1299 1300 /* ReTune Mobile? */ 1301 if (wm8993->pdata.num_retune_configs) { 1302 u16 eq1 = snd_soc_component_read(component, WM8993_EQ1); 1303 struct wm8993_retune_mobile_setting *s; 1304 1305 best = 0; 1306 best_val = abs(wm8993->pdata.retune_configs[0].rate 1307 - wm8993->fs); 1308 for (i = 0; i < wm8993->pdata.num_retune_configs; i++) { 1309 cur_val = abs(wm8993->pdata.retune_configs[i].rate 1310 - wm8993->fs); 1311 if (cur_val < best_val) { 1312 best_val = cur_val; 1313 best = i; 1314 } 1315 } 1316 s = &wm8993->pdata.retune_configs[best]; 1317 1318 dev_dbg(component->dev, "ReTune Mobile %s tuned for %dHz\n", 1319 s->name, s->rate); 1320 1321 /* Disable EQ while we reconfigure */ 1322 snd_soc_component_update_bits(component, WM8993_EQ1, WM8993_EQ_ENA, 0); 1323 1324 for (i = 1; i < ARRAY_SIZE(s->config); i++) 1325 snd_soc_component_write(component, WM8993_EQ1 + i, s->config[i]); 1326 1327 snd_soc_component_update_bits(component, WM8993_EQ1, WM8993_EQ_ENA, eq1); 1328 } 1329 1330 return 0; 1331} 1332 1333static int wm8993_mute(struct snd_soc_dai *codec_dai, int mute, int direction) 1334{ 1335 struct snd_soc_component *component = codec_dai->component; 1336 unsigned int reg; 1337 1338 reg = snd_soc_component_read(component, WM8993_DAC_CTRL); 1339 1340 if (mute) 1341 reg |= WM8993_DAC_MUTE; 1342 else 1343 reg &= ~WM8993_DAC_MUTE; 1344 1345 snd_soc_component_write(component, WM8993_DAC_CTRL, reg); 1346 1347 return 0; 1348} 1349 1350static int wm8993_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask, 1351 unsigned int rx_mask, int slots, int slot_width) 1352{ 1353 struct snd_soc_component *component = dai->component; 1354 struct wm8993_priv *wm8993 = snd_soc_component_get_drvdata(component); 1355 int aif1 = 0; 1356 int aif2 = 0; 1357 1358 /* Don't need to validate anything if we're turning off TDM */ 1359 if (slots == 0) { 1360 wm8993->tdm_slots = 0; 1361 goto out; 1362 } 1363 1364 /* Note that we allow configurations we can't handle ourselves - 1365 * for example, we can generate clocks for slots 2 and up even if 1366 * we can't use those slots ourselves. 1367 */ 1368 aif1 |= WM8993_AIFADC_TDM; 1369 aif2 |= WM8993_AIFDAC_TDM; 1370 1371 switch (rx_mask) { 1372 case 3: 1373 break; 1374 case 0xc: 1375 aif1 |= WM8993_AIFADC_TDM_CHAN; 1376 break; 1377 default: 1378 return -EINVAL; 1379 } 1380 1381 1382 switch (tx_mask) { 1383 case 3: 1384 break; 1385 case 0xc: 1386 aif2 |= WM8993_AIFDAC_TDM_CHAN; 1387 break; 1388 default: 1389 return -EINVAL; 1390 } 1391 1392out: 1393 wm8993->tdm_width = slot_width; 1394 wm8993->tdm_slots = slots / 2; 1395 1396 snd_soc_component_update_bits(component, WM8993_AUDIO_INTERFACE_1, 1397 WM8993_AIFADC_TDM | WM8993_AIFADC_TDM_CHAN, aif1); 1398 snd_soc_component_update_bits(component, WM8993_AUDIO_INTERFACE_2, 1399 WM8993_AIFDAC_TDM | WM8993_AIFDAC_TDM_CHAN, aif2); 1400 1401 return 0; 1402} 1403 1404static irqreturn_t wm8993_irq(int irq, void *data) 1405{ 1406 struct wm8993_priv *wm8993 = data; 1407 int mask, val, ret; 1408 1409 ret = regmap_read(wm8993->regmap, WM8993_GPIO_CTRL_1, &val); 1410 if (ret != 0) { 1411 dev_err(wm8993->dev, "Failed to read interrupt status: %d\n", 1412 ret); 1413 return IRQ_NONE; 1414 } 1415 1416 ret = regmap_read(wm8993->regmap, WM8993_GPIOCTRL_2, &mask); 1417 if (ret != 0) { 1418 dev_err(wm8993->dev, "Failed to read interrupt mask: %d\n", 1419 ret); 1420 return IRQ_NONE; 1421 } 1422 1423 /* The IRQ pin status is visible in the register too */ 1424 val &= ~(mask | WM8993_IRQ); 1425 if (!val) 1426 return IRQ_NONE; 1427 1428 if (val & WM8993_TEMPOK_EINT) 1429 dev_crit(wm8993->dev, "Thermal warning\n"); 1430 1431 if (val & WM8993_FLL_LOCK_EINT) { 1432 dev_dbg(wm8993->dev, "FLL locked\n"); 1433 complete(&wm8993->fll_lock); 1434 } 1435 1436 ret = regmap_write(wm8993->regmap, WM8993_GPIO_CTRL_1, val); 1437 if (ret != 0) 1438 dev_err(wm8993->dev, "Failed to ack interrupt: %d\n", ret); 1439 1440 return IRQ_HANDLED; 1441} 1442 1443static const struct snd_soc_dai_ops wm8993_ops = { 1444 .set_sysclk = wm8993_set_sysclk, 1445 .set_fmt = wm8993_set_dai_fmt, 1446 .hw_params = wm8993_hw_params, 1447 .mute_stream = wm8993_mute, 1448 .set_pll = wm8993_set_fll, 1449 .set_tdm_slot = wm8993_set_tdm_slot, 1450 .no_capture_mute = 1, 1451}; 1452 1453#define WM8993_RATES SNDRV_PCM_RATE_8000_48000 1454 1455#define WM8993_FORMATS (SNDRV_PCM_FMTBIT_S16_LE |\ 1456 SNDRV_PCM_FMTBIT_S20_3LE |\ 1457 SNDRV_PCM_FMTBIT_S24_LE |\ 1458 SNDRV_PCM_FMTBIT_S32_LE) 1459 1460static struct snd_soc_dai_driver wm8993_dai = { 1461 .name = "wm8993-hifi", 1462 .playback = { 1463 .stream_name = "Playback", 1464 .channels_min = 1, 1465 .channels_max = 2, 1466 .rates = WM8993_RATES, 1467 .formats = WM8993_FORMATS, 1468 .sig_bits = 24, 1469 }, 1470 .capture = { 1471 .stream_name = "Capture", 1472 .channels_min = 1, 1473 .channels_max = 2, 1474 .rates = WM8993_RATES, 1475 .formats = WM8993_FORMATS, 1476 .sig_bits = 24, 1477 }, 1478 .ops = &wm8993_ops, 1479 .symmetric_rate = 1, 1480}; 1481 1482static int wm8993_probe(struct snd_soc_component *component) 1483{ 1484 struct wm8993_priv *wm8993 = snd_soc_component_get_drvdata(component); 1485 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component); 1486 1487 wm8993->hubs_data.hp_startup_mode = 1; 1488 wm8993->hubs_data.dcs_codes_l = -2; 1489 wm8993->hubs_data.dcs_codes_r = -2; 1490 wm8993->hubs_data.series_startup = 1; 1491 1492 /* Latch volume update bits and default ZC on */ 1493 snd_soc_component_update_bits(component, WM8993_RIGHT_DAC_DIGITAL_VOLUME, 1494 WM8993_DAC_VU, WM8993_DAC_VU); 1495 snd_soc_component_update_bits(component, WM8993_RIGHT_ADC_DIGITAL_VOLUME, 1496 WM8993_ADC_VU, WM8993_ADC_VU); 1497 1498 /* Manualy manage the HPOUT sequencing for independent stereo 1499 * control. */ 1500 snd_soc_component_update_bits(component, WM8993_ANALOGUE_HP_0, 1501 WM8993_HPOUT1_AUTO_PU, 0); 1502 1503 /* Use automatic clock configuration */ 1504 snd_soc_component_update_bits(component, WM8993_CLOCKING_4, WM8993_SR_MODE, 0); 1505 1506 wm_hubs_handle_analogue_pdata(component, wm8993->pdata.lineout1_diff, 1507 wm8993->pdata.lineout2_diff, 1508 wm8993->pdata.lineout1fb, 1509 wm8993->pdata.lineout2fb, 1510 wm8993->pdata.jd_scthr, 1511 wm8993->pdata.jd_thr, 1512 wm8993->pdata.micbias1_delay, 1513 wm8993->pdata.micbias2_delay, 1514 wm8993->pdata.micbias1_lvl, 1515 wm8993->pdata.micbias2_lvl); 1516 1517 snd_soc_add_component_controls(component, wm8993_snd_controls, 1518 ARRAY_SIZE(wm8993_snd_controls)); 1519 if (wm8993->pdata.num_retune_configs != 0) { 1520 dev_dbg(component->dev, "Using ReTune Mobile\n"); 1521 } else { 1522 dev_dbg(component->dev, "No ReTune Mobile, using normal EQ\n"); 1523 snd_soc_add_component_controls(component, wm8993_eq_controls, 1524 ARRAY_SIZE(wm8993_eq_controls)); 1525 } 1526 1527 snd_soc_dapm_new_controls(dapm, wm8993_dapm_widgets, 1528 ARRAY_SIZE(wm8993_dapm_widgets)); 1529 wm_hubs_add_analogue_controls(component); 1530 1531 snd_soc_dapm_add_routes(dapm, routes, ARRAY_SIZE(routes)); 1532 wm_hubs_add_analogue_routes(component, wm8993->pdata.lineout1_diff, 1533 wm8993->pdata.lineout2_diff); 1534 1535 /* If the line outputs are differential then we aren't presenting 1536 * VMID as an output and can disable it. 1537 */ 1538 if (wm8993->pdata.lineout1_diff && wm8993->pdata.lineout2_diff) 1539 dapm->idle_bias_off = 1; 1540 1541 return 0; 1542 1543} 1544 1545#ifdef CONFIG_PM 1546static int wm8993_suspend(struct snd_soc_component *component) 1547{ 1548 struct wm8993_priv *wm8993 = snd_soc_component_get_drvdata(component); 1549 int fll_fout = wm8993->fll_fout; 1550 int fll_fref = wm8993->fll_fref; 1551 int ret; 1552 1553 /* Stop the FLL in an orderly fashion */ 1554 ret = _wm8993_set_fll(component, 0, 0, 0, 0); 1555 if (ret != 0) { 1556 dev_err(component->dev, "Failed to stop FLL\n"); 1557 return ret; 1558 } 1559 1560 wm8993->fll_fout = fll_fout; 1561 wm8993->fll_fref = fll_fref; 1562 1563 snd_soc_component_force_bias_level(component, SND_SOC_BIAS_OFF); 1564 1565 return 0; 1566} 1567 1568static int wm8993_resume(struct snd_soc_component *component) 1569{ 1570 struct wm8993_priv *wm8993 = snd_soc_component_get_drvdata(component); 1571 int ret; 1572 1573 snd_soc_component_force_bias_level(component, SND_SOC_BIAS_STANDBY); 1574 1575 /* Restart the FLL? */ 1576 if (wm8993->fll_fout) { 1577 int fll_fout = wm8993->fll_fout; 1578 int fll_fref = wm8993->fll_fref; 1579 1580 wm8993->fll_fref = 0; 1581 wm8993->fll_fout = 0; 1582 1583 ret = _wm8993_set_fll(component, 0, wm8993->fll_src, 1584 fll_fref, fll_fout); 1585 if (ret != 0) 1586 dev_err(component->dev, "Failed to restart FLL\n"); 1587 } 1588 1589 return 0; 1590} 1591#else 1592#define wm8993_suspend NULL 1593#define wm8993_resume NULL 1594#endif 1595 1596/* Tune DC servo configuration */ 1597static const struct reg_sequence wm8993_regmap_patch[] = { 1598 { 0x44, 3 }, 1599 { 0x56, 3 }, 1600 { 0x44, 0 }, 1601}; 1602 1603static const struct regmap_config wm8993_regmap = { 1604 .reg_bits = 8, 1605 .val_bits = 16, 1606 1607 .max_register = WM8993_MAX_REGISTER, 1608 .volatile_reg = wm8993_volatile, 1609 .readable_reg = wm8993_readable, 1610 1611 .cache_type = REGCACHE_MAPLE, 1612 .reg_defaults = wm8993_reg_defaults, 1613 .num_reg_defaults = ARRAY_SIZE(wm8993_reg_defaults), 1614}; 1615 1616static const struct snd_soc_component_driver soc_component_dev_wm8993 = { 1617 .probe = wm8993_probe, 1618 .suspend = wm8993_suspend, 1619 .resume = wm8993_resume, 1620 .set_bias_level = wm8993_set_bias_level, 1621 .idle_bias_on = 1, 1622 .use_pmdown_time = 1, 1623 .endianness = 1, 1624}; 1625 1626static int wm8993_i2c_probe(struct i2c_client *i2c) 1627{ 1628 struct wm8993_priv *wm8993; 1629 unsigned int reg; 1630 int ret, i; 1631 1632 wm8993 = devm_kzalloc(&i2c->dev, sizeof(struct wm8993_priv), 1633 GFP_KERNEL); 1634 if (wm8993 == NULL) 1635 return -ENOMEM; 1636 1637 wm8993->dev = &i2c->dev; 1638 init_completion(&wm8993->fll_lock); 1639 1640 wm8993->regmap = devm_regmap_init_i2c(i2c, &wm8993_regmap); 1641 if (IS_ERR(wm8993->regmap)) { 1642 ret = PTR_ERR(wm8993->regmap); 1643 dev_err(&i2c->dev, "Failed to allocate regmap: %d\n", ret); 1644 return ret; 1645 } 1646 1647 i2c_set_clientdata(i2c, wm8993); 1648 1649 for (i = 0; i < ARRAY_SIZE(wm8993->supplies); i++) 1650 wm8993->supplies[i].supply = wm8993_supply_names[i]; 1651 1652 ret = devm_regulator_bulk_get(&i2c->dev, ARRAY_SIZE(wm8993->supplies), 1653 wm8993->supplies); 1654 if (ret != 0) { 1655 dev_err(&i2c->dev, "Failed to request supplies: %d\n", ret); 1656 return ret; 1657 } 1658 1659 ret = regulator_bulk_enable(ARRAY_SIZE(wm8993->supplies), 1660 wm8993->supplies); 1661 if (ret != 0) { 1662 dev_err(&i2c->dev, "Failed to enable supplies: %d\n", ret); 1663 return ret; 1664 } 1665 1666 ret = regmap_read(wm8993->regmap, WM8993_SOFTWARE_RESET, ®); 1667 if (ret != 0) { 1668 dev_err(&i2c->dev, "Failed to read chip ID: %d\n", ret); 1669 goto err_enable; 1670 } 1671 1672 if (reg != 0x8993) { 1673 dev_err(&i2c->dev, "Invalid ID register value %x\n", reg); 1674 ret = -EINVAL; 1675 goto err_enable; 1676 } 1677 1678 ret = regmap_write(wm8993->regmap, WM8993_SOFTWARE_RESET, 0xffff); 1679 if (ret != 0) 1680 goto err_enable; 1681 1682 ret = regmap_register_patch(wm8993->regmap, wm8993_regmap_patch, 1683 ARRAY_SIZE(wm8993_regmap_patch)); 1684 if (ret != 0) 1685 dev_warn(wm8993->dev, "Failed to apply regmap patch: %d\n", 1686 ret); 1687 1688 if (i2c->irq) { 1689 /* Put GPIO1 into interrupt mode (only GPIO1 can output IRQ) */ 1690 ret = regmap_update_bits(wm8993->regmap, WM8993_GPIO1, 1691 WM8993_GPIO1_PD | 1692 WM8993_GPIO1_SEL_MASK, 7); 1693 if (ret != 0) 1694 goto err_enable; 1695 1696 ret = request_threaded_irq(i2c->irq, NULL, wm8993_irq, 1697 IRQF_TRIGGER_HIGH | IRQF_ONESHOT, 1698 "wm8993", wm8993); 1699 if (ret != 0) 1700 goto err_enable; 1701 1702 } 1703 1704 regulator_bulk_disable(ARRAY_SIZE(wm8993->supplies), wm8993->supplies); 1705 1706 regcache_cache_only(wm8993->regmap, true); 1707 1708 ret = devm_snd_soc_register_component(&i2c->dev, 1709 &soc_component_dev_wm8993, &wm8993_dai, 1); 1710 if (ret != 0) { 1711 dev_err(&i2c->dev, "Failed to register CODEC: %d\n", ret); 1712 goto err_irq; 1713 } 1714 1715 return 0; 1716 1717err_irq: 1718 if (i2c->irq) 1719 free_irq(i2c->irq, wm8993); 1720err_enable: 1721 regulator_bulk_disable(ARRAY_SIZE(wm8993->supplies), wm8993->supplies); 1722 return ret; 1723} 1724 1725static void wm8993_i2c_remove(struct i2c_client *i2c) 1726{ 1727 struct wm8993_priv *wm8993 = i2c_get_clientdata(i2c); 1728 1729 if (i2c->irq) 1730 free_irq(i2c->irq, wm8993); 1731 regulator_bulk_disable(ARRAY_SIZE(wm8993->supplies), wm8993->supplies); 1732} 1733 1734static const struct i2c_device_id wm8993_i2c_id[] = { 1735 { "wm8993", 0 }, 1736 { } 1737}; 1738MODULE_DEVICE_TABLE(i2c, wm8993_i2c_id); 1739 1740static struct i2c_driver wm8993_i2c_driver = { 1741 .driver = { 1742 .name = "wm8993", 1743 }, 1744 .probe = wm8993_i2c_probe, 1745 .remove = wm8993_i2c_remove, 1746 .id_table = wm8993_i2c_id, 1747}; 1748 1749module_i2c_driver(wm8993_i2c_driver); 1750 1751MODULE_DESCRIPTION("ASoC WM8993 driver"); 1752MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>"); 1753MODULE_LICENSE("GPL"); 1754