drivers/mfd/arizona-core.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * Arizona core driver
   4  *
   5  * Copyright 2012 Wolfson Microelectronics plc
   6  *
   7  * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
   8  */
   9
  10 #include <linux/clk.h>
  11 #include <linux/delay.h>
  12 #include <linux/err.h>
  13 #include <linux/gpio/consumer.h>
  14 #include <linux/interrupt.h>
  15 #include <linux/mfd/core.h>
  16 #include <linux/module.h>
  17 #include <linux/of.h>
  18 #include <linux/of_device.h>
  19 #include <linux/pm_runtime.h>
  20 #include <linux/regmap.h>
  21 #include <linux/regulator/consumer.h>
  22 #include <linux/regulator/machine.h>
  23 #include <linux/slab.h>
  24 #include <linux/ktime.h>
  25 #include <linux/platform_device.h>
  26
  27 #include <linux/mfd/arizona/core.h>
  28 #include <linux/mfd/arizona/registers.h>
  29
  30 #include "arizona.h"
  31
  32 static const char * const wm5102_core_supplies[] = {
  33         "AVDD",
  34         "DBVDD1",
  35 };
  36
  37 int arizona_clk32k_enable(struct arizona *arizona)
  38 {
  39         int ret = 0;
  40
  41         mutex_lock(&arizona->clk_lock);
  42
  43         arizona->clk32k_ref++;
  44
  45         if (arizona->clk32k_ref == 1) {
  46                 switch (arizona->pdata.clk32k_src) {
  47                 case ARIZONA_32KZ_MCLK1:
  48                         ret = pm_runtime_resume_and_get(arizona->dev);
  49                         if (ret != 0)
  50                                 goto err_ref;
  51                         ret = clk_prepare_enable(arizona->mclk[ARIZONA_MCLK1]);
  52                         if (ret != 0) {
  53                                 pm_runtime_put_sync(arizona->dev);
  54                                 goto err_ref;
  55                         }
  56                         break;
  57                 case ARIZONA_32KZ_MCLK2:
  58                         ret = clk_prepare_enable(arizona->mclk[ARIZONA_MCLK2]);
  59                         if (ret != 0)
  60                                 goto err_ref;
  61                         break;
  62                 }
  63
  64                 ret = regmap_update_bits(arizona->regmap, ARIZONA_CLOCK_32K_1,
  65                                          ARIZONA_CLK_32K_ENA,
  66                                          ARIZONA_CLK_32K_ENA);
  67         }
  68
  69 err_ref:
  70         if (ret != 0)
  71                 arizona->clk32k_ref--;
  72
  73         mutex_unlock(&arizona->clk_lock);
  74
  75         return ret;
  76 }
  77 EXPORT_SYMBOL_GPL(arizona_clk32k_enable);
  78
  79 int arizona_clk32k_disable(struct arizona *arizona)
  80 {
  81         mutex_lock(&arizona->clk_lock);
  82
  83         WARN_ON(arizona->clk32k_ref <= 0);
  84
  85         arizona->clk32k_ref--;
  86
  87         if (arizona->clk32k_ref == 0) {
  88                 regmap_update_bits(arizona->regmap, ARIZONA_CLOCK_32K_1,
  89                                    ARIZONA_CLK_32K_ENA, 0);
  90
  91                 switch (arizona->pdata.clk32k_src) {
  92                 case ARIZONA_32KZ_MCLK1:
  93                         pm_runtime_put_sync(arizona->dev);
  94                         clk_disable_unprepare(arizona->mclk[ARIZONA_MCLK1]);
  95                         break;
  96                 case ARIZONA_32KZ_MCLK2:
  97                         clk_disable_unprepare(arizona->mclk[ARIZONA_MCLK2]);
  98                         break;
  99                 }
 100         }
 101
 102         mutex_unlock(&arizona->clk_lock);
 103
 104         return 0;
 105 }
 106 EXPORT_SYMBOL_GPL(arizona_clk32k_disable);
 107
 108 static irqreturn_t arizona_clkgen_err(int irq, void *data)
 109 {
 110         struct arizona *arizona = data;
 111
 112         dev_err(arizona->dev, "CLKGEN error\n");
 113
 114         return IRQ_HANDLED;
 115 }
 116
 117 static irqreturn_t arizona_underclocked(int irq, void *data)
 118 {
 119         struct arizona *arizona = data;
 120         unsigned int val;
 121         int ret;
 122
 123         ret = regmap_read(arizona->regmap, ARIZONA_INTERRUPT_RAW_STATUS_8,
 124                           &val);
 125         if (ret != 0) {
 126                 dev_err(arizona->dev, "Failed to read underclock status: %d\n",
 127                         ret);
 128                 return IRQ_NONE;
 129         }
 130
 131         if (val & ARIZONA_AIF3_UNDERCLOCKED_STS)
 132                 dev_err(arizona->dev, "AIF3 underclocked\n");
 133         if (val & ARIZONA_AIF2_UNDERCLOCKED_STS)
 134                 dev_err(arizona->dev, "AIF2 underclocked\n");
 135         if (val & ARIZONA_AIF1_UNDERCLOCKED_STS)
 136                 dev_err(arizona->dev, "AIF1 underclocked\n");
 137         if (val & ARIZONA_ISRC3_UNDERCLOCKED_STS)
 138                 dev_err(arizona->dev, "ISRC3 underclocked\n");
 139         if (val & ARIZONA_ISRC2_UNDERCLOCKED_STS)
 140                 dev_err(arizona->dev, "ISRC2 underclocked\n");
 141         if (val & ARIZONA_ISRC1_UNDERCLOCKED_STS)
 142                 dev_err(arizona->dev, "ISRC1 underclocked\n");
 143         if (val & ARIZONA_FX_UNDERCLOCKED_STS)
 144                 dev_err(arizona->dev, "FX underclocked\n");
 145         if (val & ARIZONA_ASRC_UNDERCLOCKED_STS)
 146                 dev_err(arizona->dev, "ASRC underclocked\n");
 147         if (val & ARIZONA_DAC_UNDERCLOCKED_STS)
 148                 dev_err(arizona->dev, "DAC underclocked\n");
 149         if (val & ARIZONA_ADC_UNDERCLOCKED_STS)
 150                 dev_err(arizona->dev, "ADC underclocked\n");
 151         if (val & ARIZONA_MIXER_UNDERCLOCKED_STS)
 152                 dev_err(arizona->dev, "Mixer dropped sample\n");
 153
 154         return IRQ_HANDLED;
 155 }
 156
 157 static irqreturn_t arizona_overclocked(int irq, void *data)
 158 {
 159         struct arizona *arizona = data;
 160         unsigned int val[3];
 161         int ret;
 162
 163         ret = regmap_bulk_read(arizona->regmap, ARIZONA_INTERRUPT_RAW_STATUS_6,
 164                                &val[0], 3);
 165         if (ret != 0) {
 166                 dev_err(arizona->dev, "Failed to read overclock status: %d\n",
 167                         ret);
 168                 return IRQ_NONE;
 169         }
 170
 171         switch (arizona->type) {
 172         case WM8998:
 173         case WM1814:
 174                 /* Some bits are shifted on WM8998,
 175                  * rearrange to match the standard bit layout
 176                  */
 177                 val[0] = ((val[0] & 0x60e0) >> 1) |
 178                          ((val[0] & 0x1e00) >> 2) |
 179                          (val[0] & 0x000f);
 180                 break;
 181         default:
 182                 break;
 183         }
 184
 185         if (val[0] & ARIZONA_PWM_OVERCLOCKED_STS)
 186                 dev_err(arizona->dev, "PWM overclocked\n");
 187         if (val[0] & ARIZONA_FX_CORE_OVERCLOCKED_STS)
 188                 dev_err(arizona->dev, "FX core overclocked\n");
 189         if (val[0] & ARIZONA_DAC_SYS_OVERCLOCKED_STS)
 190                 dev_err(arizona->dev, "DAC SYS overclocked\n");
 191         if (val[0] & ARIZONA_DAC_WARP_OVERCLOCKED_STS)
 192                 dev_err(arizona->dev, "DAC WARP overclocked\n");
 193         if (val[0] & ARIZONA_ADC_OVERCLOCKED_STS)
 194                 dev_err(arizona->dev, "ADC overclocked\n");
 195         if (val[0] & ARIZONA_MIXER_OVERCLOCKED_STS)
 196                 dev_err(arizona->dev, "Mixer overclocked\n");
 197         if (val[0] & ARIZONA_AIF3_SYNC_OVERCLOCKED_STS)
 198                 dev_err(arizona->dev, "AIF3 overclocked\n");
 199         if (val[0] & ARIZONA_AIF2_SYNC_OVERCLOCKED_STS)
 200                 dev_err(arizona->dev, "AIF2 overclocked\n");
 201         if (val[0] & ARIZONA_AIF1_SYNC_OVERCLOCKED_STS)
 202                 dev_err(arizona->dev, "AIF1 overclocked\n");
 203         if (val[0] & ARIZONA_PAD_CTRL_OVERCLOCKED_STS)
 204                 dev_err(arizona->dev, "Pad control overclocked\n");
 205
 206         if (val[1] & ARIZONA_SLIMBUS_SUBSYS_OVERCLOCKED_STS)
 207                 dev_err(arizona->dev, "Slimbus subsystem overclocked\n");
 208         if (val[1] & ARIZONA_SLIMBUS_ASYNC_OVERCLOCKED_STS)
 209                 dev_err(arizona->dev, "Slimbus async overclocked\n");
 210         if (val[1] & ARIZONA_SLIMBUS_SYNC_OVERCLOCKED_STS)
 211                 dev_err(arizona->dev, "Slimbus sync overclocked\n");
 212         if (val[1] & ARIZONA_ASRC_ASYNC_SYS_OVERCLOCKED_STS)
 213                 dev_err(arizona->dev, "ASRC async system overclocked\n");
 214         if (val[1] & ARIZONA_ASRC_ASYNC_WARP_OVERCLOCKED_STS)
 215                 dev_err(arizona->dev, "ASRC async WARP overclocked\n");
 216         if (val[1] & ARIZONA_ASRC_SYNC_SYS_OVERCLOCKED_STS)
 217                 dev_err(arizona->dev, "ASRC sync system overclocked\n");
 218         if (val[1] & ARIZONA_ASRC_SYNC_WARP_OVERCLOCKED_STS)
 219                 dev_err(arizona->dev, "ASRC sync WARP overclocked\n");
 220         if (val[1] & ARIZONA_ADSP2_1_OVERCLOCKED_STS)
 221                 dev_err(arizona->dev, "DSP1 overclocked\n");
 222         if (val[1] & ARIZONA_ISRC3_OVERCLOCKED_STS)
 223                 dev_err(arizona->dev, "ISRC3 overclocked\n");
 224         if (val[1] & ARIZONA_ISRC2_OVERCLOCKED_STS)
 225                 dev_err(arizona->dev, "ISRC2 overclocked\n");
 226         if (val[1] & ARIZONA_ISRC1_OVERCLOCKED_STS)
 227                 dev_err(arizona->dev, "ISRC1 overclocked\n");
 228
 229         if (val[2] & ARIZONA_SPDIF_OVERCLOCKED_STS)
 230                 dev_err(arizona->dev, "SPDIF overclocked\n");
 231
 232         return IRQ_HANDLED;
 233 }
 234
 235 #define ARIZONA_REG_POLL_DELAY_US 7500
 236
 237 static inline bool arizona_poll_reg_delay(ktime_t timeout)
 238 {
 239         if (ktime_compare(ktime_get(), timeout) > 0)
 240                 return false;
 241
 242         usleep_range(ARIZONA_REG_POLL_DELAY_US / 2, ARIZONA_REG_POLL_DELAY_US);
 243
 244         return true;
 245 }
 246
 247 static int arizona_poll_reg(struct arizona *arizona,
 248                             int timeout_ms, unsigned int reg,
 249                             unsigned int mask, unsigned int target)
 250 {
 251         ktime_t timeout = ktime_add_us(ktime_get(), timeout_ms * USEC_PER_MSEC);
 252         unsigned int val = 0;
 253         int ret;
 254
 255         do {
 256                 ret = regmap_read(arizona->regmap, reg, &val);
 257
 258                 if ((val & mask) == target)
 259                         return 0;
 260         } while (arizona_poll_reg_delay(timeout));
 261
 262         if (ret) {
 263                 dev_err(arizona->dev, "Failed polling reg 0x%x: %d\n",
 264                         reg, ret);
 265                 return ret;
 266         }
 267
 268         dev_err(arizona->dev, "Polling reg 0x%x timed out: %x\n", reg, val);
 269         return -ETIMEDOUT;
 270 }
 271
 272 static int arizona_wait_for_boot(struct arizona *arizona)
 273 {
 274         int ret;
 275
 276         /*
 277          * We can't use an interrupt as we need to runtime resume to do so,
 278          * we won't race with the interrupt handler as it'll be blocked on
 279          * runtime resume.
 280          */
 281         ret = arizona_poll_reg(arizona, 30, ARIZONA_INTERRUPT_RAW_STATUS_5,
 282                                ARIZONA_BOOT_DONE_STS, ARIZONA_BOOT_DONE_STS);
 283
 284         if (!ret)
 285                 regmap_write(arizona->regmap, ARIZONA_INTERRUPT_STATUS_5,
 286                              ARIZONA_BOOT_DONE_STS);
 287
 288         pm_runtime_mark_last_busy(arizona->dev);
 289
 290         return ret;
 291 }
 292
 293 static inline void arizona_enable_reset(struct arizona *arizona)
 294 {
 295         if (arizona->pdata.reset)
 296                 gpiod_set_raw_value_cansleep(arizona->pdata.reset, 0);
 297 }
 298
 299 static void arizona_disable_reset(struct arizona *arizona)
 300 {
 301         if (arizona->pdata.reset) {
 302                 switch (arizona->type) {
 303                 case WM5110:
 304                 case WM8280:
 305                         /* Meet requirements for minimum reset duration */
 306                         usleep_range(5000, 10000);
 307                         break;
 308                 default:
 309                         break;
 310                 }
 311
 312                 gpiod_set_raw_value_cansleep(arizona->pdata.reset, 1);
 313                 usleep_range(1000, 5000);
 314         }
 315 }
 316
 317 struct arizona_sysclk_state {
 318         unsigned int fll;
 319         unsigned int sysclk;
 320 };
 321
 322 static int arizona_enable_freerun_sysclk(struct arizona *arizona,
 323                                          struct arizona_sysclk_state *state)
 324 {
 325         int ret, err;
 326
 327         /* Cache existing FLL and SYSCLK settings */
 328         ret = regmap_read(arizona->regmap, ARIZONA_FLL1_CONTROL_1, &state->fll);
 329         if (ret) {
 330                 dev_err(arizona->dev, "Failed to cache FLL settings: %d\n",
 331                         ret);
 332                 return ret;
 333         }
 334         ret = regmap_read(arizona->regmap, ARIZONA_SYSTEM_CLOCK_1,
 335                           &state->sysclk);
 336         if (ret) {
 337                 dev_err(arizona->dev, "Failed to cache SYSCLK settings: %d\n",
 338                         ret);
 339                 return ret;
 340         }
 341
 342         /* Start up SYSCLK using the FLL in free running mode */
 343         ret = regmap_write(arizona->regmap, ARIZONA_FLL1_CONTROL_1,
 344                         ARIZONA_FLL1_ENA | ARIZONA_FLL1_FREERUN);
 345         if (ret) {
 346                 dev_err(arizona->dev,
 347                         "Failed to start FLL in freerunning mode: %d\n",
 348                         ret);
 349                 return ret;
 350         }
 351         ret = arizona_poll_reg(arizona, 180, ARIZONA_INTERRUPT_RAW_STATUS_5,
 352                                ARIZONA_FLL1_CLOCK_OK_STS,
 353                                ARIZONA_FLL1_CLOCK_OK_STS);
 354         if (ret)
 355                 goto err_fll;
 356
 357         ret = regmap_write(arizona->regmap, ARIZONA_SYSTEM_CLOCK_1, 0x0144);
 358         if (ret) {
 359                 dev_err(arizona->dev, "Failed to start SYSCLK: %d\n", ret);
 360                 goto err_fll;
 361         }
 362
 363         return 0;
 364
 365 err_fll:
 366         err = regmap_write(arizona->regmap, ARIZONA_FLL1_CONTROL_1, state->fll);
 367         if (err)
 368                 dev_err(arizona->dev,
 369                         "Failed to re-apply old FLL settings: %d\n", err);
 370
 371         return ret;
 372 }
 373
 374 static int arizona_disable_freerun_sysclk(struct arizona *arizona,
 375                                           struct arizona_sysclk_state *state)
 376 {
 377         int ret;
 378
 379         ret = regmap_write(arizona->regmap, ARIZONA_SYSTEM_CLOCK_1,
 380                            state->sysclk);
 381         if (ret) {
 382                 dev_err(arizona->dev,
 383                         "Failed to re-apply old SYSCLK settings: %d\n", ret);
 384                 return ret;
 385         }
 386
 387         ret = regmap_write(arizona->regmap, ARIZONA_FLL1_CONTROL_1, state->fll);
 388         if (ret) {
 389                 dev_err(arizona->dev,
 390                         "Failed to re-apply old FLL settings: %d\n", ret);
 391                 return ret;
 392         }
 393
 394         return 0;
 395 }
 396
 397 static int wm5102_apply_hardware_patch(struct arizona *arizona)
 398 {
 399         struct arizona_sysclk_state state;
 400         int err, ret;
 401
 402         ret = arizona_enable_freerun_sysclk(arizona, &state);
 403         if (ret)
 404                 return ret;
 405
 406         /* Start the write sequencer and wait for it to finish */
 407         ret = regmap_write(arizona->regmap, ARIZONA_WRITE_SEQUENCER_CTRL_0,
 408                            ARIZONA_WSEQ_ENA | ARIZONA_WSEQ_START | 160);
 409         if (ret) {
 410                 dev_err(arizona->dev, "Failed to start write sequencer: %d\n",
 411                         ret);
 412                 goto err;
 413         }
 414
 415         ret = arizona_poll_reg(arizona, 30, ARIZONA_WRITE_SEQUENCER_CTRL_1,
 416                                ARIZONA_WSEQ_BUSY, 0);
 417         if (ret)
 418                 regmap_write(arizona->regmap, ARIZONA_WRITE_SEQUENCER_CTRL_0,
 419                              ARIZONA_WSEQ_ABORT);
 420
 421 err:
 422         err = arizona_disable_freerun_sysclk(arizona, &state);
 423
 424         return ret ?: err;
 425 }
 426
 427 /*
 428  * Register patch to some of the CODECs internal write sequences
 429  * to ensure a clean exit from the low power sleep state.
 430  */
 431 static const struct reg_sequence wm5110_sleep_patch[] = {
 432         { 0x337A, 0xC100 },
 433         { 0x337B, 0x0041 },
 434         { 0x3300, 0xA210 },
 435         { 0x3301, 0x050C },
 436 };
 437
 438 static int wm5110_apply_sleep_patch(struct arizona *arizona)
 439 {
 440         struct arizona_sysclk_state state;
 441         int err, ret;
 442
 443         ret = arizona_enable_freerun_sysclk(arizona, &state);
 444         if (ret)
 445                 return ret;
 446
 447         ret = regmap_multi_reg_write_bypassed(arizona->regmap,
 448                                               wm5110_sleep_patch,
 449                                               ARRAY_SIZE(wm5110_sleep_patch));
 450
 451         err = arizona_disable_freerun_sysclk(arizona, &state);
 452
 453         return ret ?: err;
 454 }
 455
 456 static int wm5102_clear_write_sequencer(struct arizona *arizona)
 457 {
 458         int ret;
 459
 460         ret = regmap_write(arizona->regmap, ARIZONA_WRITE_SEQUENCER_CTRL_3,
 461                            0x0);
 462         if (ret) {
 463                 dev_err(arizona->dev,
 464                         "Failed to clear write sequencer state: %d\n", ret);
 465                 return ret;
 466         }
 467
 468         arizona_enable_reset(arizona);
 469         regulator_disable(arizona->dcvdd);
 470
 471         msleep(20);
 472
 473         ret = regulator_enable(arizona->dcvdd);
 474         if (ret) {
 475                 dev_err(arizona->dev, "Failed to re-enable DCVDD: %d\n", ret);
 476                 return ret;
 477         }
 478         arizona_disable_reset(arizona);
 479
 480         return 0;
 481 }
 482
 483 static int arizona_isolate_dcvdd(struct arizona *arizona)
 484 {
 485         int ret;
 486
 487         ret = regmap_update_bits(arizona->regmap,
 488                                  ARIZONA_ISOLATION_CONTROL,
 489                                  ARIZONA_ISOLATE_DCVDD1,
 490                                  ARIZONA_ISOLATE_DCVDD1);
 491         if (ret != 0)
 492                 dev_err(arizona->dev, "Failed to isolate DCVDD: %d\n", ret);
 493
 494         return ret;
 495 }
 496
 497 static int arizona_connect_dcvdd(struct arizona *arizona)
 498 {
 499         int ret;
 500
 501         ret = regmap_update_bits(arizona->regmap,
 502                                  ARIZONA_ISOLATION_CONTROL,
 503                                  ARIZONA_ISOLATE_DCVDD1, 0);
 504         if (ret != 0)
 505                 dev_err(arizona->dev, "Failed to connect DCVDD: %d\n", ret);
 506
 507         return ret;
 508 }
 509
 510 static int arizona_is_jack_det_active(struct arizona *arizona)
 511 {
 512         unsigned int val;
 513         int ret;
 514
 515         ret = regmap_read(arizona->regmap, ARIZONA_JACK_DETECT_ANALOGUE, &val);
 516         if (ret) {
 517                 dev_err(arizona->dev,
 518                         "Failed to check jack det status: %d\n", ret);
 519                 return ret;
 520         } else if (val & ARIZONA_JD1_ENA) {
 521                 return 1;
 522         } else {
 523                 return 0;
 524         }
 525 }
 526
 527 static int arizona_runtime_resume(struct device *dev)
 528 {
 529         struct arizona *arizona = dev_get_drvdata(dev);
 530         int ret;
 531
 532         dev_dbg(arizona->dev, "Leaving AoD mode\n");
 533
 534         if (arizona->has_fully_powered_off) {
 535                 dev_dbg(arizona->dev, "Re-enabling core supplies\n");
 536
 537                 ret = regulator_bulk_enable(arizona->num_core_supplies,
 538                                             arizona->core_supplies);
 539                 if (ret) {
 540                         dev_err(dev, "Failed to enable core supplies: %d\n",
 541                                 ret);
 542                         return ret;
 543                 }
 544         }
 545
 546         ret = regulator_enable(arizona->dcvdd);
 547         if (ret != 0) {
 548                 dev_err(arizona->dev, "Failed to enable DCVDD: %d\n", ret);
 549                 if (arizona->has_fully_powered_off)
 550                         regulator_bulk_disable(arizona->num_core_supplies,
 551                                                arizona->core_supplies);
 552                 return ret;
 553         }
 554
 555         if (arizona->has_fully_powered_off) {
 556                 arizona_disable_reset(arizona);
 557                 enable_irq(arizona->irq);
 558                 arizona->has_fully_powered_off = false;
 559         }
 560
 561         regcache_cache_only(arizona->regmap, false);
 562
 563         switch (arizona->type) {
 564         case WM5102:
 565                 if (arizona->external_dcvdd) {
 566                         ret = arizona_connect_dcvdd(arizona);
 567                         if (ret != 0)
 568                                 goto err;
 569                 }
 570
 571                 ret = wm5102_patch(arizona);
 572                 if (ret != 0) {
 573                         dev_err(arizona->dev, "Failed to apply patch: %d\n",
 574                                 ret);
 575                         goto err;
 576                 }
 577
 578                 ret = wm5102_apply_hardware_patch(arizona);
 579                 if (ret) {
 580                         dev_err(arizona->dev,
 581                                 "Failed to apply hardware patch: %d\n",
 582                                 ret);
 583                         goto err;
 584                 }
 585                 break;
 586         case WM5110:
 587         case WM8280:
 588                 ret = arizona_wait_for_boot(arizona);
 589                 if (ret)
 590                         goto err;
 591
 592                 if (arizona->external_dcvdd) {
 593                         ret = arizona_connect_dcvdd(arizona);
 594                         if (ret != 0)
 595                                 goto err;
 596                 } else {
 597                         /*
 598                          * As this is only called for the internal regulator
 599                          * (where we know voltage ranges available) it is ok
 600                          * to request an exact range.
 601                          */
 602                         ret = regulator_set_voltage(arizona->dcvdd,
 603                                                     1200000, 1200000);
 604                         if (ret < 0) {
 605                                 dev_err(arizona->dev,
 606                                         "Failed to set resume voltage: %d\n",
 607                                         ret);
 608                                 goto err;
 609                         }
 610                 }
 611
 612                 ret = wm5110_apply_sleep_patch(arizona);
 613                 if (ret) {
 614                         dev_err(arizona->dev,
 615                                 "Failed to re-apply sleep patch: %d\n",
 616                                 ret);
 617                         goto err;
 618                 }
 619                 break;
 620         case WM1831:
 621         case CS47L24:
 622                 ret = arizona_wait_for_boot(arizona);
 623                 if (ret != 0)
 624                         goto err;
 625                 break;
 626         default:
 627                 ret = arizona_wait_for_boot(arizona);
 628                 if (ret != 0)
 629                         goto err;
 630
 631                 if (arizona->external_dcvdd) {
 632                         ret = arizona_connect_dcvdd(arizona);
 633                         if (ret != 0)
 634                                 goto err;
 635                 }
 636                 break;
 637         }
 638
 639         ret = regcache_sync(arizona->regmap);
 640         if (ret != 0) {
 641                 dev_err(arizona->dev, "Failed to restore register cache\n");
 642                 goto err;
 643         }
 644
 645         return 0;
 646
 647 err:
 648         regcache_cache_only(arizona->regmap, true);
 649         regulator_disable(arizona->dcvdd);
 650         return ret;
 651 }
 652
 653 static int arizona_runtime_suspend(struct device *dev)
 654 {
 655         struct arizona *arizona = dev_get_drvdata(dev);
 656         int jd_active = 0;
 657         int ret;
 658
 659         dev_dbg(arizona->dev, "Entering AoD mode\n");
 660
 661         switch (arizona->type) {
 662         case WM5110:
 663         case WM8280:
 664                 jd_active = arizona_is_jack_det_active(arizona);
 665                 if (jd_active < 0)
 666                         return jd_active;
 667
 668                 if (arizona->external_dcvdd) {
 669                         ret = arizona_isolate_dcvdd(arizona);
 670                         if (ret != 0)
 671                                 return ret;
 672                 } else {
 673                         /*
 674                          * As this is only called for the internal regulator
 675                          * (where we know voltage ranges available) it is ok
 676                          * to request an exact range.
 677                          */
 678                         ret = regulator_set_voltage(arizona->dcvdd,
 679                                                     1175000, 1175000);
 680                         if (ret < 0) {
 681                                 dev_err(arizona->dev,
 682                                         "Failed to set suspend voltage: %d\n",
 683                                         ret);
 684                                 return ret;
 685                         }
 686                 }
 687                 break;
 688         case WM5102:
 689                 jd_active = arizona_is_jack_det_active(arizona);
 690                 if (jd_active < 0)
 691                         return jd_active;
 692
 693                 if (arizona->external_dcvdd) {
 694                         ret = arizona_isolate_dcvdd(arizona);
 695                         if (ret != 0)
 696                                 return ret;
 697                 }
 698
 699                 if (!jd_active) {
 700                         ret = regmap_write(arizona->regmap,
 701                                            ARIZONA_WRITE_SEQUENCER_CTRL_3, 0x0);
 702                         if (ret) {
 703                                 dev_err(arizona->dev,
 704                                         "Failed to clear write sequencer: %d\n",
 705                                         ret);
 706                                 return ret;
 707                         }
 708                 }
 709                 break;
 710         case WM1831:
 711         case CS47L24:
 712                 break;
 713         default:
 714                 jd_active = arizona_is_jack_det_active(arizona);
 715                 if (jd_active < 0)
 716                         return jd_active;
 717
 718                 if (arizona->external_dcvdd) {
 719                         ret = arizona_isolate_dcvdd(arizona);
 720                         if (ret != 0)
 721                                 return ret;
 722                 }
 723                 break;
 724         }
 725
 726         regcache_cache_only(arizona->regmap, true);
 727         regcache_mark_dirty(arizona->regmap);
 728         regulator_disable(arizona->dcvdd);
 729
 730         /* Allow us to completely power down if no jack detection */
 731         if (!jd_active) {
 732                 dev_dbg(arizona->dev, "Fully powering off\n");
 733
 734                 arizona->has_fully_powered_off = true;
 735
 736                 disable_irq_nosync(arizona->irq);
 737                 arizona_enable_reset(arizona);
 738                 regulator_bulk_disable(arizona->num_core_supplies,
 739                                        arizona->core_supplies);
 740         }
 741
 742         return 0;
 743 }
 744
 745 static int arizona_suspend(struct device *dev)
 746 {
 747         struct arizona *arizona = dev_get_drvdata(dev);
 748
 749         dev_dbg(arizona->dev, "Suspend, disabling IRQ\n");
 750         disable_irq(arizona->irq);
 751
 752         return 0;
 753 }
 754
 755 static int arizona_suspend_noirq(struct device *dev)
 756 {
 757         struct arizona *arizona = dev_get_drvdata(dev);
 758
 759         dev_dbg(arizona->dev, "Late suspend, reenabling IRQ\n");
 760         enable_irq(arizona->irq);
 761
 762         return 0;
 763 }
 764
 765 static int arizona_resume_noirq(struct device *dev)
 766 {
 767         struct arizona *arizona = dev_get_drvdata(dev);
 768
 769         dev_dbg(arizona->dev, "Early resume, disabling IRQ\n");
 770         disable_irq(arizona->irq);
 771
 772         return 0;
 773 }
 774
 775 static int arizona_resume(struct device *dev)
 776 {
 777         struct arizona *arizona = dev_get_drvdata(dev);
 778
 779         dev_dbg(arizona->dev, "Resume, reenabling IRQ\n");
 780         enable_irq(arizona->irq);
 781
 782         return 0;
 783 }
 784
 785 EXPORT_GPL_DEV_PM_OPS(arizona_pm_ops) = {
 786         RUNTIME_PM_OPS(arizona_runtime_suspend,
 787                        arizona_runtime_resume,
 788                        NULL)
 789         SYSTEM_SLEEP_PM_OPS(arizona_suspend, arizona_resume)
 790         NOIRQ_SYSTEM_SLEEP_PM_OPS(arizona_suspend_noirq,
 791                                   arizona_resume_noirq)
 792 };
 793
 794 #ifdef CONFIG_OF
 795 static int arizona_of_get_core_pdata(struct arizona *arizona)
 796 {
 797         struct arizona_pdata *pdata = &arizona->pdata;
 798         int ret, i;
 799
 800         /* Handle old non-standard DT binding */
 801         pdata->reset = devm_gpiod_get(arizona->dev, "wlf,reset", GPIOD_OUT_LOW);
 802         if (IS_ERR(pdata->reset)) {
 803                 ret = PTR_ERR(pdata->reset);
 804
 805                 /*
 806                  * Reset missing will be caught when other binding is read
 807                  * but all other errors imply this binding is in use but has
 808                  * encountered a problem so should be handled.
 809                  */
 810                 if (ret == -EPROBE_DEFER)
 811                         return ret;
 812                 else if (ret != -ENOENT && ret != -ENOSYS)
 813                         dev_err(arizona->dev, "Reset GPIO malformed: %d\n",
 814                                 ret);
 815
 816                 pdata->reset = NULL;
 817         }
 818
 819         ret = of_property_read_u32_array(arizona->dev->of_node,
 820                                          "wlf,gpio-defaults",
 821                                          pdata->gpio_defaults,
 822                                          ARRAY_SIZE(pdata->gpio_defaults));
 823         if (ret >= 0) {
 824                 /*
 825                  * All values are literal except out of range values
 826                  * which are chip default, translate into platform
 827                  * data which uses 0 as chip default and out of range
 828                  * as zero.
 829                  */
 830                 for (i = 0; i < ARRAY_SIZE(pdata->gpio_defaults); i++) {
 831                         if (pdata->gpio_defaults[i] > 0xffff)
 832                                 pdata->gpio_defaults[i] = 0;
 833                         else if (pdata->gpio_defaults[i] == 0)
 834                                 pdata->gpio_defaults[i] = 0x10000;
 835                 }
 836         } else {
 837                 dev_err(arizona->dev, "Failed to parse GPIO defaults: %d\n",
 838                         ret);
 839         }
 840
 841         return 0;
 842 }
 843 #else
 844 static inline int arizona_of_get_core_pdata(struct arizona *arizona)
 845 {
 846         return 0;
 847 }
 848 #endif
 849
 850 static const struct mfd_cell early_devs[] = {
 851         { .name = "arizona-ldo1" },
 852 };
 853
 854 static const char * const wm5102_supplies[] = {
 855         "MICVDD",
 856         "DBVDD2",
 857         "DBVDD3",
 858         "CPVDD",
 859         "SPKVDDL",
 860         "SPKVDDR",
 861 };
 862
 863 static const struct mfd_cell wm5102_devs[] = {
 864         { .name = "arizona-micsupp" },
 865         { .name = "arizona-gpio" },
 866         { .name = "arizona-haptics" },
 867         { .name = "arizona-pwm" },
 868         {
 869                 .name = "wm5102-codec",
 870                 .parent_supplies = wm5102_supplies,
 871                 .num_parent_supplies = ARRAY_SIZE(wm5102_supplies),
 872         },
 873 };
 874
 875 static const struct mfd_cell wm5110_devs[] = {
 876         { .name = "arizona-micsupp" },
 877         { .name = "arizona-gpio" },
 878         { .name = "arizona-haptics" },
 879         { .name = "arizona-pwm" },
 880         {
 881                 .name = "wm5110-codec",
 882                 .parent_supplies = wm5102_supplies,
 883                 .num_parent_supplies = ARRAY_SIZE(wm5102_supplies),
 884         },
 885 };
 886
 887 static const char * const cs47l24_supplies[] = {
 888         "MICVDD",
 889         "CPVDD",
 890         "SPKVDD",
 891 };
 892
 893 static const struct mfd_cell cs47l24_devs[] = {
 894         { .name = "arizona-gpio" },
 895         { .name = "arizona-haptics" },
 896         { .name = "arizona-pwm" },
 897         {
 898                 .name = "cs47l24-codec",
 899                 .parent_supplies = cs47l24_supplies,
 900                 .num_parent_supplies = ARRAY_SIZE(cs47l24_supplies),
 901         },
 902 };
 903
 904 static const char * const wm8997_supplies[] = {
 905         "MICVDD",
 906         "DBVDD2",
 907         "CPVDD",
 908         "SPKVDD",
 909 };
 910
 911 static const struct mfd_cell wm8997_devs[] = {
 912         { .name = "arizona-micsupp" },
 913         { .name = "arizona-gpio" },
 914         { .name = "arizona-haptics" },
 915         { .name = "arizona-pwm" },
 916         {
 917                 .name = "wm8997-codec",
 918                 .parent_supplies = wm8997_supplies,
 919                 .num_parent_supplies = ARRAY_SIZE(wm8997_supplies),
 920         },
 921 };
 922
 923 static const struct mfd_cell wm8998_devs[] = {
 924         { .name = "arizona-micsupp" },
 925         { .name = "arizona-gpio" },
 926         { .name = "arizona-haptics" },
 927         { .name = "arizona-pwm" },
 928         {
 929                 .name = "wm8998-codec",
 930                 .parent_supplies = wm5102_supplies,
 931                 .num_parent_supplies = ARRAY_SIZE(wm5102_supplies),
 932         },
 933 };
 934
 935 int arizona_dev_init(struct arizona *arizona)
 936 {
 937         static const char * const mclk_name[] = { "mclk1", "mclk2" };
 938         struct device *dev = arizona->dev;
 939         const char *type_name = NULL;
 940         unsigned int reg, val;
 941         int (*apply_patch)(struct arizona *) = NULL;
 942         const struct mfd_cell *subdevs = NULL;
 943         int n_subdevs = 0, ret, i;
 944
 945         dev_set_drvdata(arizona->dev, arizona);
 946         mutex_init(&arizona->clk_lock);
 947
 948         if (dev_get_platdata(arizona->dev)) {
 949                 memcpy(&arizona->pdata, dev_get_platdata(arizona->dev),
 950                        sizeof(arizona->pdata));
 951         } else {
 952                 ret = arizona_of_get_core_pdata(arizona);
 953                 if (ret < 0)
 954                         return ret;
 955         }
 956
 957         BUILD_BUG_ON(ARRAY_SIZE(arizona->mclk) != ARRAY_SIZE(mclk_name));
 958         for (i = 0; i < ARRAY_SIZE(arizona->mclk); i++) {
 959                 arizona->mclk[i] = devm_clk_get(arizona->dev, mclk_name[i]);
 960                 if (IS_ERR(arizona->mclk[i])) {
 961                         dev_info(arizona->dev, "Failed to get %s: %ld\n",
 962                                  mclk_name[i], PTR_ERR(arizona->mclk[i]));
 963                         arizona->mclk[i] = NULL;
 964                 }
 965         }
 966
 967         regcache_cache_only(arizona->regmap, true);
 968
 969         switch (arizona->type) {
 970         case WM5102:
 971         case WM5110:
 972         case WM8280:
 973         case WM8997:
 974         case WM8998:
 975         case WM1814:
 976         case WM1831:
 977         case CS47L24:
 978                 for (i = 0; i < ARRAY_SIZE(wm5102_core_supplies); i++)
 979                         arizona->core_supplies[i].supply
 980                                 = wm5102_core_supplies[i];
 981                 arizona->num_core_supplies = ARRAY_SIZE(wm5102_core_supplies);
 982                 break;
 983         default:
 984                 dev_err(arizona->dev, "Unknown device type %d\n",
 985                         arizona->type);
 986                 return -ENODEV;
 987         }
 988
 989         /* Mark DCVDD as external, LDO1 driver will clear if internal */
 990         arizona->external_dcvdd = true;
 991
 992         switch (arizona->type) {
 993         case WM1831:
 994         case CS47L24:
 995                 break; /* No LDO1 regulator */
 996         default:
 997                 ret = mfd_add_devices(arizona->dev, -1, early_devs,
 998                                       ARRAY_SIZE(early_devs), NULL, 0, NULL);
 999                 if (ret != 0) {
1000                         dev_err(dev, "Failed to add early children: %d\n", ret);
1001                         return ret;
1002                 }
1003                 break;
1004         }
1005
1006         ret = devm_regulator_bulk_get(dev, arizona->num_core_supplies,
1007                                       arizona->core_supplies);
1008         if (ret != 0) {
1009                 dev_err(dev, "Failed to request core supplies: %d\n",
1010                         ret);
1011                 goto err_early;
1012         }
1013
1014         /**
1015          * Don't use devres here because the only device we have to get
1016          * against is the MFD device and DCVDD will likely be supplied by
1017          * one of its children. Meaning that the regulator will be
1018          * destroyed by the time devres calls regulator put.
1019          */
1020         arizona->dcvdd = regulator_get(arizona->dev, "DCVDD");
1021         if (IS_ERR(arizona->dcvdd)) {
1022                 ret = PTR_ERR(arizona->dcvdd);
1023                 dev_err(dev, "Failed to request DCVDD: %d\n", ret);
1024                 goto err_early;
1025         }
1026
1027         if (!arizona->pdata.reset) {
1028                 /* Start out with /RESET low to put the chip into reset */
1029                 arizona->pdata.reset = devm_gpiod_get(arizona->dev, "reset",
1030                                                       GPIOD_OUT_LOW);
1031                 if (IS_ERR(arizona->pdata.reset)) {
1032                         ret = PTR_ERR(arizona->pdata.reset);
1033                         if (ret == -EPROBE_DEFER)
1034                                 goto err_dcvdd;
1035
1036                         dev_err(arizona->dev,
1037                                 "Reset GPIO missing/malformed: %d\n", ret);
1038
1039                         arizona->pdata.reset = NULL;
1040                 }
1041         }
1042
1043         ret = regulator_bulk_enable(arizona->num_core_supplies,
1044                                     arizona->core_supplies);
1045         if (ret != 0) {
1046                 dev_err(dev, "Failed to enable core supplies: %d\n",
1047                         ret);
1048                 goto err_dcvdd;
1049         }
1050
1051         ret = regulator_enable(arizona->dcvdd);
1052         if (ret != 0) {
1053                 dev_err(dev, "Failed to enable DCVDD: %d\n", ret);
1054                 goto err_enable;
1055         }
1056
1057         arizona_disable_reset(arizona);
1058
1059         regcache_cache_only(arizona->regmap, false);
1060
1061         /* Verify that this is a chip we know about */
1062         ret = regmap_read(arizona->regmap, ARIZONA_SOFTWARE_RESET, &reg);
1063         if (ret != 0) {
1064                 dev_err(dev, "Failed to read ID register: %d\n", ret);
1065                 goto err_reset;
1066         }
1067
1068         switch (reg) {
1069         case 0x5102:
1070         case 0x5110:
1071         case 0x6349:
1072         case 0x6363:
1073         case 0x8997:
1074                 break;
1075         default:
1076                 dev_err(arizona->dev, "Unknown device ID: %x\n", reg);
1077                 ret = -ENODEV;
1078                 goto err_reset;
1079         }
1080
1081         /* If we have a /RESET GPIO we'll already be reset */
1082         if (!arizona->pdata.reset) {
1083                 ret = regmap_write(arizona->regmap, ARIZONA_SOFTWARE_RESET, 0);
1084                 if (ret != 0) {
1085                         dev_err(dev, "Failed to reset device: %d\n", ret);
1086                         goto err_reset;
1087                 }
1088
1089                 usleep_range(1000, 5000);
1090         }
1091
1092         /* Ensure device startup is complete */
1093         switch (arizona->type) {
1094         case WM5102:
1095                 ret = regmap_read(arizona->regmap,
1096                                   ARIZONA_WRITE_SEQUENCER_CTRL_3, &val);
1097                 if (ret) {
1098                         dev_err(dev,
1099                                 "Failed to check write sequencer state: %d\n",
1100                                 ret);
1101                 } else if (val & 0x01) {
1102                         ret = wm5102_clear_write_sequencer(arizona);
1103                         if (ret)
1104                                 return ret;
1105                 }
1106                 break;
1107         default:
1108                 break;
1109         }
1110
1111         ret = arizona_wait_for_boot(arizona);
1112         if (ret) {
1113                 dev_err(arizona->dev, "Device failed initial boot: %d\n", ret);
1114                 goto err_reset;
1115         }
1116
1117         /* Read the device ID information & do device specific stuff */
1118         ret = regmap_read(arizona->regmap, ARIZONA_SOFTWARE_RESET, &reg);
1119         if (ret != 0) {
1120                 dev_err(dev, "Failed to read ID register: %d\n", ret);
1121                 goto err_reset;
1122         }
1123
1124         ret = regmap_read(arizona->regmap, ARIZONA_DEVICE_REVISION,
1125                           &arizona->rev);
1126         if (ret != 0) {
1127                 dev_err(dev, "Failed to read revision register: %d\n", ret);
1128                 goto err_reset;
1129         }
1130         arizona->rev &= ARIZONA_DEVICE_REVISION_MASK;
1131
1132         switch (reg) {
1133         case 0x5102:
1134                 if (IS_ENABLED(CONFIG_MFD_WM5102)) {
1135                         type_name = "WM5102";
1136                         if (arizona->type != WM5102) {
1137                                 dev_warn(arizona->dev,
1138                                          "WM5102 registered as %d\n",
1139                                          arizona->type);
1140                                 arizona->type = WM5102;
1141                         }
1142
1143                         apply_patch = wm5102_patch;
1144                         arizona->rev &= 0x7;
1145                         subdevs = wm5102_devs;
1146                         n_subdevs = ARRAY_SIZE(wm5102_devs);
1147                 }
1148                 break;
1149         case 0x5110:
1150                 if (IS_ENABLED(CONFIG_MFD_WM5110)) {
1151                         switch (arizona->type) {
1152                         case WM5110:
1153                                 type_name = "WM5110";
1154                                 break;
1155                         case WM8280:
1156                                 type_name = "WM8280";
1157                                 break;
1158                         default:
1159                                 type_name = "WM5110";
1160                                 dev_warn(arizona->dev,
1161                                          "WM5110 registered as %d\n",
1162                                          arizona->type);
1163                                 arizona->type = WM5110;
1164                                 break;
1165                         }
1166
1167                         apply_patch = wm5110_patch;
1168                         subdevs = wm5110_devs;
1169                         n_subdevs = ARRAY_SIZE(wm5110_devs);
1170                 }
1171                 break;
1172         case 0x6363:
1173                 if (IS_ENABLED(CONFIG_MFD_CS47L24)) {
1174                         switch (arizona->type) {
1175                         case CS47L24:
1176                                 type_name = "CS47L24";
1177                                 break;
1178
1179                         case WM1831:
1180                                 type_name = "WM1831";
1181                                 break;
1182
1183                         default:
1184                                 dev_warn(arizona->dev,
1185                                          "CS47L24 registered as %d\n",
1186                                          arizona->type);
1187                                 arizona->type = CS47L24;
1188                                 break;
1189                         }
1190
1191                         apply_patch = cs47l24_patch;
1192                         subdevs = cs47l24_devs;
1193                         n_subdevs = ARRAY_SIZE(cs47l24_devs);
1194                 }
1195                 break;
1196         case 0x8997:
1197                 if (IS_ENABLED(CONFIG_MFD_WM8997)) {
1198                         type_name = "WM8997";
1199                         if (arizona->type != WM8997) {
1200                                 dev_warn(arizona->dev,
1201                                          "WM8997 registered as %d\n",
1202                                          arizona->type);
1203                                 arizona->type = WM8997;
1204                         }
1205
1206                         apply_patch = wm8997_patch;
1207                         subdevs = wm8997_devs;
1208                         n_subdevs = ARRAY_SIZE(wm8997_devs);
1209                 }
1210                 break;
1211         case 0x6349:
1212                 if (IS_ENABLED(CONFIG_MFD_WM8998)) {
1213                         switch (arizona->type) {
1214                         case WM8998:
1215                                 type_name = "WM8998";
1216                                 break;
1217
1218                         case WM1814:
1219                                 type_name = "WM1814";
1220                                 break;
1221
1222                         default:
1223                                 type_name = "WM8998";
1224                                 dev_warn(arizona->dev,
1225                                          "WM8998 registered as %d\n",
1226                                          arizona->type);
1227                                 arizona->type = WM8998;
1228                         }
1229
1230                         apply_patch = wm8998_patch;
1231                         subdevs = wm8998_devs;
1232                         n_subdevs = ARRAY_SIZE(wm8998_devs);
1233                 }
1234                 break;
1235         default:
1236                 dev_err(arizona->dev, "Unknown device ID %x\n", reg);
1237                 ret = -ENODEV;
1238                 goto err_reset;
1239         }
1240
1241         if (!subdevs) {
1242                 dev_err(arizona->dev,
1243                         "No kernel support for device ID %x\n", reg);
1244                 ret = -ENODEV;
1245                 goto err_reset;
1246         }
1247
1248         dev_info(dev, "%s revision %c\n", type_name, arizona->rev + 'A');
1249
1250         if (apply_patch) {
1251                 ret = apply_patch(arizona);
1252                 if (ret != 0) {
1253                         dev_err(arizona->dev, "Failed to apply patch: %d\n",
1254                                 ret);
1255                         goto err_reset;
1256                 }
1257
1258                 switch (arizona->type) {
1259                 case WM5102:
1260                         ret = wm5102_apply_hardware_patch(arizona);
1261                         if (ret) {
1262                                 dev_err(arizona->dev,
1263                                         "Failed to apply hardware patch: %d\n",
1264                                         ret);
1265                                 goto err_reset;
1266                         }
1267                         break;
1268                 case WM5110:
1269                 case WM8280:
1270                         ret = wm5110_apply_sleep_patch(arizona);
1271                         if (ret) {
1272                                 dev_err(arizona->dev,
1273                                         "Failed to apply sleep patch: %d\n",
1274                                         ret);
1275                                 goto err_reset;
1276                         }
1277                         break;
1278                 default:
1279                         break;
1280                 }
1281         }
1282
1283         for (i = 0; i < ARRAY_SIZE(arizona->pdata.gpio_defaults); i++) {
1284                 if (!arizona->pdata.gpio_defaults[i])
1285                         continue;
1286
1287                 regmap_write(arizona->regmap, ARIZONA_GPIO1_CTRL + i,
1288                              arizona->pdata.gpio_defaults[i]);
1289         }
1290
1291         /* Chip default */
1292         if (!arizona->pdata.clk32k_src)
1293                 arizona->pdata.clk32k_src = ARIZONA_32KZ_MCLK2;
1294
1295         switch (arizona->pdata.clk32k_src) {
1296         case ARIZONA_32KZ_MCLK1:
1297         case ARIZONA_32KZ_MCLK2:
1298                 regmap_update_bits(arizona->regmap, ARIZONA_CLOCK_32K_1,
1299                                    ARIZONA_CLK_32K_SRC_MASK,
1300                                    arizona->pdata.clk32k_src - 1);
1301                 arizona_clk32k_enable(arizona);
1302                 break;
1303         case ARIZONA_32KZ_NONE:
1304                 regmap_update_bits(arizona->regmap, ARIZONA_CLOCK_32K_1,
1305                                    ARIZONA_CLK_32K_SRC_MASK, 2);
1306                 break;
1307         default:
1308                 dev_err(arizona->dev, "Invalid 32kHz clock source: %d\n",
1309                         arizona->pdata.clk32k_src);
1310                 ret = -EINVAL;
1311                 goto err_reset;
1312         }
1313
1314         for (i = 0; i < ARIZONA_MAX_MICBIAS; i++) {
1315                 if (!arizona->pdata.micbias[i].mV &&
1316                     !arizona->pdata.micbias[i].bypass)
1317                         continue;
1318
1319                 /* Apply default for bypass mode */
1320                 if (!arizona->pdata.micbias[i].mV)
1321                         arizona->pdata.micbias[i].mV = 2800;
1322
1323                 val = (arizona->pdata.micbias[i].mV - 1500) / 100;
1324
1325                 val <<= ARIZONA_MICB1_LVL_SHIFT;
1326
1327                 if (arizona->pdata.micbias[i].ext_cap)
1328                         val |= ARIZONA_MICB1_EXT_CAP;
1329
1330                 if (arizona->pdata.micbias[i].discharge)
1331                         val |= ARIZONA_MICB1_DISCH;
1332
1333                 if (arizona->pdata.micbias[i].soft_start)
1334                         val |= ARIZONA_MICB1_RATE;
1335
1336                 if (arizona->pdata.micbias[i].bypass)
1337                         val |= ARIZONA_MICB1_BYPASS;
1338
1339                 regmap_update_bits(arizona->regmap,
1340                                    ARIZONA_MIC_BIAS_CTRL_1 + i,
1341                                    ARIZONA_MICB1_LVL_MASK |
1342                                    ARIZONA_MICB1_EXT_CAP |
1343                                    ARIZONA_MICB1_DISCH |
1344                                    ARIZONA_MICB1_BYPASS |
1345                                    ARIZONA_MICB1_RATE, val);
1346         }
1347
1348         pm_runtime_set_active(arizona->dev);
1349         pm_runtime_enable(arizona->dev);
1350
1351         /* Set up for interrupts */
1352         ret = arizona_irq_init(arizona);
1353         if (ret != 0)
1354                 goto err_pm;
1355
1356         pm_runtime_set_autosuspend_delay(arizona->dev, 100);
1357         pm_runtime_use_autosuspend(arizona->dev);
1358
1359         arizona_request_irq(arizona, ARIZONA_IRQ_CLKGEN_ERR, "CLKGEN error",
1360                             arizona_clkgen_err, arizona);
1361         arizona_request_irq(arizona, ARIZONA_IRQ_OVERCLOCKED, "Overclocked",
1362                             arizona_overclocked, arizona);
1363         arizona_request_irq(arizona, ARIZONA_IRQ_UNDERCLOCKED, "Underclocked",
1364                             arizona_underclocked, arizona);
1365
1366         ret = mfd_add_devices(arizona->dev, PLATFORM_DEVID_NONE,
1367                               subdevs, n_subdevs, NULL, 0, NULL);
1368
1369         if (ret) {
1370                 dev_err(arizona->dev, "Failed to add subdevices: %d\n", ret);
1371                 goto err_irq;
1372         }
1373
1374         return 0;
1375
1376 err_irq:
1377         arizona_irq_exit(arizona);
1378 err_pm:
1379         pm_runtime_disable(arizona->dev);
1380
1381         switch (arizona->pdata.clk32k_src) {
1382         case ARIZONA_32KZ_MCLK1:
1383         case ARIZONA_32KZ_MCLK2:
1384                 arizona_clk32k_disable(arizona);
1385                 break;
1386         default:
1387                 break;
1388         }
1389 err_reset:
1390         arizona_enable_reset(arizona);
1391         regulator_disable(arizona->dcvdd);
1392 err_enable:
1393         regulator_bulk_disable(arizona->num_core_supplies,
1394                                arizona->core_supplies);
1395 err_dcvdd:
1396         regulator_put(arizona->dcvdd);
1397 err_early:
1398         mfd_remove_devices(dev);
1399         return ret;
1400 }
1401 EXPORT_SYMBOL_GPL(arizona_dev_init);
1402
1403 int arizona_dev_exit(struct arizona *arizona)
1404 {
1405         disable_irq(arizona->irq);
1406         pm_runtime_disable(arizona->dev);
1407
1408         regulator_disable(arizona->dcvdd);
1409         regulator_put(arizona->dcvdd);
1410
1411         switch (arizona->pdata.clk32k_src) {
1412         case ARIZONA_32KZ_MCLK1:
1413         case ARIZONA_32KZ_MCLK2:
1414                 arizona_clk32k_disable(arizona);
1415                 break;
1416         default:
1417                 break;
1418         }
1419
1420         mfd_remove_devices(arizona->dev);
1421         arizona_free_irq(arizona, ARIZONA_IRQ_UNDERCLOCKED, arizona);
1422         arizona_free_irq(arizona, ARIZONA_IRQ_OVERCLOCKED, arizona);
1423         arizona_free_irq(arizona, ARIZONA_IRQ_CLKGEN_ERR, arizona);
1424         arizona_irq_exit(arizona);
1425         arizona_enable_reset(arizona);
1426
1427         regulator_bulk_disable(arizona->num_core_supplies,
1428                                arizona->core_supplies);
1429         return 0;
1430 }
1431 EXPORT_SYMBOL_GPL(arizona_dev_exit);
1432
1433 MODULE_LICENSE("GPL v2");