drivers/mfd/arizona-core.c

   1 /*
   2  * Arizona core driver
   3  *
   4  * Copyright 2012 Wolfson Microelectronics plc
   5  *
   6  * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License version 2 as
  10  * published by the Free Software Foundation.
  11  */
  12
  13 #include <linux/delay.h>
  14 #include <linux/err.h>
  15 #include <linux/gpio.h>
  16 #include <linux/interrupt.h>
  17 #include <linux/mfd/core.h>
  18 #include <linux/module.h>
  19 #include <linux/pm_runtime.h>
  20 #include <linux/regmap.h>
  21 #include <linux/regulator/consumer.h>
  22 #include <linux/slab.h>
  23
  24 #include <linux/mfd/arizona/core.h>
  25 #include <linux/mfd/arizona/registers.h>
  26
  27 #include "arizona.h"
  28
  29 static const char *wm5102_core_supplies[] = {
  30         "AVDD",
  31         "DBVDD1",
  32 };
  33
  34 int arizona_clk32k_enable(struct arizona *arizona)
  35 {
  36         int ret = 0;
  37
  38         mutex_lock(&arizona->clk_lock);
  39
  40         arizona->clk32k_ref++;
  41
  42         if (arizona->clk32k_ref == 1) {
  43                 switch (arizona->pdata.clk32k_src) {
  44                 case ARIZONA_32KZ_MCLK1:
  45                         ret = pm_runtime_get_sync(arizona->dev);
  46                         if (ret != 0)
  47                                 goto out;
  48                         break;
  49                 }
  50
  51                 ret = regmap_update_bits(arizona->regmap, ARIZONA_CLOCK_32K_1,
  52                                          ARIZONA_CLK_32K_ENA,
  53                                          ARIZONA_CLK_32K_ENA);
  54         }
  55
  56 out:
  57         if (ret != 0)
  58                 arizona->clk32k_ref--;
  59
  60         mutex_unlock(&arizona->clk_lock);
  61
  62         return ret;
  63 }
  64 EXPORT_SYMBOL_GPL(arizona_clk32k_enable);
  65
  66 int arizona_clk32k_disable(struct arizona *arizona)
  67 {
  68         int ret = 0;
  69
  70         mutex_lock(&arizona->clk_lock);
  71
  72         BUG_ON(arizona->clk32k_ref <= 0);
  73
  74         arizona->clk32k_ref--;
  75
  76         if (arizona->clk32k_ref == 0) {
  77                 regmap_update_bits(arizona->regmap, ARIZONA_CLOCK_32K_1,
  78                                    ARIZONA_CLK_32K_ENA, 0);
  79
  80                 switch (arizona->pdata.clk32k_src) {
  81                 case ARIZONA_32KZ_MCLK1:
  82                         pm_runtime_put_sync(arizona->dev);
  83                         break;
  84                 }
  85         }
  86
  87         mutex_unlock(&arizona->clk_lock);
  88
  89         return ret;
  90 }
  91 EXPORT_SYMBOL_GPL(arizona_clk32k_disable);
  92
  93 static irqreturn_t arizona_clkgen_err(int irq, void *data)
  94 {
  95         struct arizona *arizona = data;
  96
  97         dev_err(arizona->dev, "CLKGEN error\n");
  98
  99         return IRQ_HANDLED;
 100 }
 101
 102 static irqreturn_t arizona_underclocked(int irq, void *data)
 103 {
 104         struct arizona *arizona = data;
 105         unsigned int val;
 106         int ret;
 107
 108         ret = regmap_read(arizona->regmap, ARIZONA_INTERRUPT_RAW_STATUS_8,
 109                           &val);
 110         if (ret != 0) {
 111                 dev_err(arizona->dev, "Failed to read underclock status: %d\n",
 112                         ret);
 113                 return IRQ_NONE;
 114         }
 115
 116         if (val & ARIZONA_AIF3_UNDERCLOCKED_STS)
 117                 dev_err(arizona->dev, "AIF3 underclocked\n");
 118         if (val & ARIZONA_AIF2_UNDERCLOCKED_STS)
 119                 dev_err(arizona->dev, "AIF2 underclocked\n");
 120         if (val & ARIZONA_AIF1_UNDERCLOCKED_STS)
 121                 dev_err(arizona->dev, "AIF1 underclocked\n");
 122         if (val & ARIZONA_ISRC2_UNDERCLOCKED_STS)
 123                 dev_err(arizona->dev, "ISRC2 underclocked\n");
 124         if (val & ARIZONA_ISRC1_UNDERCLOCKED_STS)
 125                 dev_err(arizona->dev, "ISRC1 underclocked\n");
 126         if (val & ARIZONA_FX_UNDERCLOCKED_STS)
 127                 dev_err(arizona->dev, "FX underclocked\n");
 128         if (val & ARIZONA_ASRC_UNDERCLOCKED_STS)
 129                 dev_err(arizona->dev, "ASRC underclocked\n");
 130         if (val & ARIZONA_DAC_UNDERCLOCKED_STS)
 131                 dev_err(arizona->dev, "DAC underclocked\n");
 132         if (val & ARIZONA_ADC_UNDERCLOCKED_STS)
 133                 dev_err(arizona->dev, "ADC underclocked\n");
 134         if (val & ARIZONA_MIXER_UNDERCLOCKED_STS)
 135                 dev_err(arizona->dev, "Mixer dropped sample\n");
 136
 137         return IRQ_HANDLED;
 138 }
 139
 140 static irqreturn_t arizona_overclocked(int irq, void *data)
 141 {
 142         struct arizona *arizona = data;
 143         unsigned int val[2];
 144         int ret;
 145
 146         ret = regmap_bulk_read(arizona->regmap, ARIZONA_INTERRUPT_RAW_STATUS_6,
 147                                &val[0], 2);
 148         if (ret != 0) {
 149                 dev_err(arizona->dev, "Failed to read overclock status: %d\n",
 150                         ret);
 151                 return IRQ_NONE;
 152         }
 153
 154         if (val[0] & ARIZONA_PWM_OVERCLOCKED_STS)
 155                 dev_err(arizona->dev, "PWM overclocked\n");
 156         if (val[0] & ARIZONA_FX_CORE_OVERCLOCKED_STS)
 157                 dev_err(arizona->dev, "FX core overclocked\n");
 158         if (val[0] & ARIZONA_DAC_SYS_OVERCLOCKED_STS)
 159                 dev_err(arizona->dev, "DAC SYS overclocked\n");
 160         if (val[0] & ARIZONA_DAC_WARP_OVERCLOCKED_STS)
 161                 dev_err(arizona->dev, "DAC WARP overclocked\n");
 162         if (val[0] & ARIZONA_ADC_OVERCLOCKED_STS)
 163                 dev_err(arizona->dev, "ADC overclocked\n");
 164         if (val[0] & ARIZONA_MIXER_OVERCLOCKED_STS)
 165                 dev_err(arizona->dev, "Mixer overclocked\n");
 166         if (val[0] & ARIZONA_AIF3_SYNC_OVERCLOCKED_STS)
 167                 dev_err(arizona->dev, "AIF3 overclocked\n");
 168         if (val[0] & ARIZONA_AIF2_SYNC_OVERCLOCKED_STS)
 169                 dev_err(arizona->dev, "AIF2 overclocked\n");
 170         if (val[0] & ARIZONA_AIF1_SYNC_OVERCLOCKED_STS)
 171                 dev_err(arizona->dev, "AIF1 overclocked\n");
 172         if (val[0] & ARIZONA_PAD_CTRL_OVERCLOCKED_STS)
 173                 dev_err(arizona->dev, "Pad control overclocked\n");
 174
 175         if (val[1] & ARIZONA_SLIMBUS_SUBSYS_OVERCLOCKED_STS)
 176                 dev_err(arizona->dev, "Slimbus subsystem overclocked\n");
 177         if (val[1] & ARIZONA_SLIMBUS_ASYNC_OVERCLOCKED_STS)
 178                 dev_err(arizona->dev, "Slimbus async overclocked\n");
 179         if (val[1] & ARIZONA_SLIMBUS_SYNC_OVERCLOCKED_STS)
 180                 dev_err(arizona->dev, "Slimbus sync overclocked\n");
 181         if (val[1] & ARIZONA_ASRC_ASYNC_SYS_OVERCLOCKED_STS)
 182                 dev_err(arizona->dev, "ASRC async system overclocked\n");
 183         if (val[1] & ARIZONA_ASRC_ASYNC_WARP_OVERCLOCKED_STS)
 184                 dev_err(arizona->dev, "ASRC async WARP overclocked\n");
 185         if (val[1] & ARIZONA_ASRC_SYNC_SYS_OVERCLOCKED_STS)
 186                 dev_err(arizona->dev, "ASRC sync system overclocked\n");
 187         if (val[1] & ARIZONA_ASRC_SYNC_WARP_OVERCLOCKED_STS)
 188                 dev_err(arizona->dev, "ASRC sync WARP overclocked\n");
 189         if (val[1] & ARIZONA_ADSP2_1_OVERCLOCKED_STS)
 190                 dev_err(arizona->dev, "DSP1 overclocked\n");
 191         if (val[1] & ARIZONA_ISRC2_OVERCLOCKED_STS)
 192                 dev_err(arizona->dev, "ISRC2 overclocked\n");
 193         if (val[1] & ARIZONA_ISRC1_OVERCLOCKED_STS)
 194                 dev_err(arizona->dev, "ISRC1 overclocked\n");
 195
 196         return IRQ_HANDLED;
 197 }
 198
 199 static int arizona_poll_reg(struct arizona *arizona,
 200                             int timeout, unsigned int reg,
 201                             unsigned int mask, unsigned int target)
 202 {
 203         unsigned int val = 0;
 204         int ret, i;
 205
 206         for (i = 0; i < timeout; i++) {
 207                 ret = regmap_read(arizona->regmap, reg, &val);
 208                 if (ret != 0) {
 209                         dev_err(arizona->dev, "Failed to read reg %u: %d\n",
 210                                 reg, ret);
 211                         continue;
 212                 }
 213
 214                 if ((val & mask) == target)
 215                         return 0;
 216
 217                 msleep(1);
 218         }
 219
 220         dev_err(arizona->dev, "Polling reg %u timed out: %x\n", reg, val);
 221         return -ETIMEDOUT;
 222 }
 223
 224 static int arizona_wait_for_boot(struct arizona *arizona)
 225 {
 226         int ret;
 227
 228         /*
 229          * We can't use an interrupt as we need to runtime resume to do so,
 230          * we won't race with the interrupt handler as it'll be blocked on
 231          * runtime resume.
 232          */
 233         ret = arizona_poll_reg(arizona, 5, ARIZONA_INTERRUPT_RAW_STATUS_5,
 234                                ARIZONA_BOOT_DONE_STS, ARIZONA_BOOT_DONE_STS);
 235
 236         if (!ret)
 237                 regmap_write(arizona->regmap, ARIZONA_INTERRUPT_STATUS_5,
 238                              ARIZONA_BOOT_DONE_STS);
 239
 240         pm_runtime_mark_last_busy(arizona->dev);
 241
 242         return ret;
 243 }
 244
 245 static int arizona_apply_hardware_patch(struct arizona* arizona)
 246 {
 247         unsigned int fll, sysclk;
 248         int ret, err;
 249
 250         regcache_cache_bypass(arizona->regmap, true);
 251
 252         /* Cache existing FLL and SYSCLK settings */
 253         ret = regmap_read(arizona->regmap, ARIZONA_FLL1_CONTROL_1, &fll);
 254         if (ret != 0) {
 255                 dev_err(arizona->dev, "Failed to cache FLL settings: %d\n",
 256                         ret);
 257                 return ret;
 258         }
 259         ret = regmap_read(arizona->regmap, ARIZONA_SYSTEM_CLOCK_1, &sysclk);
 260         if (ret != 0) {
 261                 dev_err(arizona->dev, "Failed to cache SYSCLK settings: %d\n",
 262                         ret);
 263                 return ret;
 264         }
 265
 266         /* Start up SYSCLK using the FLL in free running mode */
 267         ret = regmap_write(arizona->regmap, ARIZONA_FLL1_CONTROL_1,
 268                         ARIZONA_FLL1_ENA | ARIZONA_FLL1_FREERUN);
 269         if (ret != 0) {
 270                 dev_err(arizona->dev,
 271                         "Failed to start FLL in freerunning mode: %d\n",
 272                         ret);
 273                 return ret;
 274         }
 275         ret = arizona_poll_reg(arizona, 25, ARIZONA_INTERRUPT_RAW_STATUS_5,
 276                                ARIZONA_FLL1_CLOCK_OK_STS,
 277                                ARIZONA_FLL1_CLOCK_OK_STS);
 278         if (ret != 0) {
 279                 ret = -ETIMEDOUT;
 280                 goto err_fll;
 281         }
 282
 283         ret = regmap_write(arizona->regmap, ARIZONA_SYSTEM_CLOCK_1, 0x0144);
 284         if (ret != 0) {
 285                 dev_err(arizona->dev, "Failed to start SYSCLK: %d\n", ret);
 286                 goto err_fll;
 287         }
 288
 289         /* Start the write sequencer and wait for it to finish */
 290         ret = regmap_write(arizona->regmap, ARIZONA_WRITE_SEQUENCER_CTRL_0,
 291                         ARIZONA_WSEQ_ENA | ARIZONA_WSEQ_START | 160);
 292         if (ret != 0) {
 293                 dev_err(arizona->dev, "Failed to start write sequencer: %d\n",
 294                         ret);
 295                 goto err_sysclk;
 296         }
 297         ret = arizona_poll_reg(arizona, 5, ARIZONA_WRITE_SEQUENCER_CTRL_1,
 298                                ARIZONA_WSEQ_BUSY, 0);
 299         if (ret != 0) {
 300                 regmap_write(arizona->regmap, ARIZONA_WRITE_SEQUENCER_CTRL_0,
 301                                 ARIZONA_WSEQ_ABORT);
 302                 ret = -ETIMEDOUT;
 303         }
 304
 305 err_sysclk:
 306         err = regmap_write(arizona->regmap, ARIZONA_SYSTEM_CLOCK_1, sysclk);
 307         if (err != 0) {
 308                 dev_err(arizona->dev,
 309                         "Failed to re-apply old SYSCLK settings: %d\n",
 310                         err);
 311         }
 312
 313 err_fll:
 314         err = regmap_write(arizona->regmap, ARIZONA_FLL1_CONTROL_1, fll);
 315         if (err != 0) {
 316                 dev_err(arizona->dev,
 317                         "Failed to re-apply old FLL settings: %d\n",
 318                         err);
 319         }
 320
 321         regcache_cache_bypass(arizona->regmap, false);
 322
 323         if (ret != 0)
 324                 return ret;
 325         else
 326                 return err;
 327 }
 328
 329 #ifdef CONFIG_PM_RUNTIME
 330 static int arizona_runtime_resume(struct device *dev)
 331 {
 332         struct arizona *arizona = dev_get_drvdata(dev);
 333         int ret;
 334
 335         dev_dbg(arizona->dev, "Leaving AoD mode\n");
 336
 337         ret = regulator_enable(arizona->dcvdd);
 338         if (ret != 0) {
 339                 dev_err(arizona->dev, "Failed to enable DCVDD: %d\n", ret);
 340                 return ret;
 341         }
 342
 343         regcache_cache_only(arizona->regmap, false);
 344
 345         switch (arizona->type) {
 346         case WM5102:
 347                 ret = wm5102_patch(arizona);
 348                 if (ret != 0) {
 349                         dev_err(arizona->dev, "Failed to apply patch: %d\n",
 350                                 ret);
 351                         goto err;
 352                 }
 353
 354                 ret = arizona_apply_hardware_patch(arizona);
 355                 if (ret != 0) {
 356                         dev_err(arizona->dev,
 357                                 "Failed to apply hardware patch: %d\n",
 358                                 ret);
 359                         goto err;
 360                 }
 361                 break;
 362         default:
 363                 ret = arizona_wait_for_boot(arizona);
 364                 if (ret != 0) {
 365                         goto err;
 366                 }
 367
 368                 break;
 369         }
 370
 371         ret = regcache_sync(arizona->regmap);
 372         if (ret != 0) {
 373                 dev_err(arizona->dev, "Failed to restore register cache\n");
 374                 goto err;
 375         }
 376
 377         return 0;
 378
 379 err:
 380         regcache_cache_only(arizona->regmap, true);
 381         regulator_disable(arizona->dcvdd);
 382         return ret;
 383 }
 384
 385 static int arizona_runtime_suspend(struct device *dev)
 386 {
 387         struct arizona *arizona = dev_get_drvdata(dev);
 388
 389         dev_dbg(arizona->dev, "Entering AoD mode\n");
 390
 391         regulator_disable(arizona->dcvdd);
 392         regcache_cache_only(arizona->regmap, true);
 393         regcache_mark_dirty(arizona->regmap);
 394
 395         return 0;
 396 }
 397 #endif
 398
 399 #ifdef CONFIG_PM_SLEEP
 400 static int arizona_resume_noirq(struct device *dev)
 401 {
 402         struct arizona *arizona = dev_get_drvdata(dev);
 403
 404         dev_dbg(arizona->dev, "Early resume, disabling IRQ\n");
 405         disable_irq(arizona->irq);
 406
 407         return 0;
 408 }
 409
 410 static int arizona_resume(struct device *dev)
 411 {
 412         struct arizona *arizona = dev_get_drvdata(dev);
 413
 414         dev_dbg(arizona->dev, "Late resume, reenabling IRQ\n");
 415         enable_irq(arizona->irq);
 416
 417         return 0;
 418 }
 419 #endif
 420
 421 const struct dev_pm_ops arizona_pm_ops = {
 422         SET_RUNTIME_PM_OPS(arizona_runtime_suspend,
 423                            arizona_runtime_resume,
 424                            NULL)
 425         SET_SYSTEM_SLEEP_PM_OPS(NULL, arizona_resume)
 426 #ifdef CONFIG_PM_SLEEP
 427         .resume_noirq = arizona_resume_noirq,
 428 #endif
 429 };
 430 EXPORT_SYMBOL_GPL(arizona_pm_ops);
 431
 432 static struct mfd_cell early_devs[] = {
 433         { .name = "arizona-ldo1" },
 434 };
 435
 436 static struct mfd_cell wm5102_devs[] = {
 437         { .name = "arizona-micsupp" },
 438         { .name = "arizona-extcon" },
 439         { .name = "arizona-gpio" },
 440         { .name = "arizona-haptics" },
 441         { .name = "arizona-pwm" },
 442         { .name = "wm5102-codec" },
 443 };
 444
 445 static struct mfd_cell wm5110_devs[] = {
 446         { .name = "arizona-micsupp" },
 447         { .name = "arizona-extcon" },
 448         { .name = "arizona-gpio" },
 449         { .name = "arizona-haptics" },
 450         { .name = "arizona-pwm" },
 451         { .name = "wm5110-codec" },
 452 };
 453
 454 int arizona_dev_init(struct arizona *arizona)
 455 {
 456         struct device *dev = arizona->dev;
 457         const char *type_name;
 458         unsigned int reg, val;
 459         int (*apply_patch)(struct arizona *) = NULL;
 460         int ret, i;
 461
 462         dev_set_drvdata(arizona->dev, arizona);
 463         mutex_init(&arizona->clk_lock);
 464
 465         if (dev_get_platdata(arizona->dev))
 466                 memcpy(&arizona->pdata, dev_get_platdata(arizona->dev),
 467                        sizeof(arizona->pdata));
 468
 469         regcache_cache_only(arizona->regmap, true);
 470
 471         switch (arizona->type) {
 472         case WM5102:
 473         case WM5110:
 474                 for (i = 0; i < ARRAY_SIZE(wm5102_core_supplies); i++)
 475                         arizona->core_supplies[i].supply
 476                                 = wm5102_core_supplies[i];
 477                 arizona->num_core_supplies = ARRAY_SIZE(wm5102_core_supplies);
 478                 break;
 479         default:
 480                 dev_err(arizona->dev, "Unknown device type %d\n",
 481                         arizona->type);
 482                 return -EINVAL;
 483         }
 484
 485         ret = mfd_add_devices(arizona->dev, -1, early_devs,
 486                               ARRAY_SIZE(early_devs), NULL, 0, NULL);
 487         if (ret != 0) {
 488                 dev_err(dev, "Failed to add early children: %d\n", ret);
 489                 return ret;
 490         }
 491
 492         ret = devm_regulator_bulk_get(dev, arizona->num_core_supplies,
 493                                       arizona->core_supplies);
 494         if (ret != 0) {
 495                 dev_err(dev, "Failed to request core supplies: %d\n",
 496                         ret);
 497                 goto err_early;
 498         }
 499
 500         arizona->dcvdd = devm_regulator_get(arizona->dev, "DCVDD");
 501         if (IS_ERR(arizona->dcvdd)) {
 502                 ret = PTR_ERR(arizona->dcvdd);
 503                 dev_err(dev, "Failed to request DCVDD: %d\n", ret);
 504                 goto err_early;
 505         }
 506
 507         if (arizona->pdata.reset) {
 508                 /* Start out with /RESET low to put the chip into reset */
 509                 ret = gpio_request_one(arizona->pdata.reset,
 510                                        GPIOF_DIR_OUT | GPIOF_INIT_LOW,
 511                                        "arizona /RESET");
 512                 if (ret != 0) {
 513                         dev_err(dev, "Failed to request /RESET: %d\n", ret);
 514                         goto err_early;
 515                 }
 516         }
 517
 518         ret = regulator_bulk_enable(arizona->num_core_supplies,
 519                                     arizona->core_supplies);
 520         if (ret != 0) {
 521                 dev_err(dev, "Failed to enable core supplies: %d\n",
 522                         ret);
 523                 goto err_early;
 524         }
 525
 526         ret = regulator_enable(arizona->dcvdd);
 527         if (ret != 0) {
 528                 dev_err(dev, "Failed to enable DCVDD: %d\n", ret);
 529                 goto err_enable;
 530         }
 531
 532         if (arizona->pdata.reset) {
 533                 gpio_set_value_cansleep(arizona->pdata.reset, 1);
 534                 msleep(1);
 535         }
 536
 537         regcache_cache_only(arizona->regmap, false);
 538
 539         ret = regmap_read(arizona->regmap, ARIZONA_SOFTWARE_RESET, &reg);
 540         if (ret != 0) {
 541                 dev_err(dev, "Failed to read ID register: %d\n", ret);
 542                 goto err_reset;
 543         }
 544
 545         ret = regmap_read(arizona->regmap, ARIZONA_DEVICE_REVISION,
 546                           &arizona->rev);
 547         if (ret != 0) {
 548                 dev_err(dev, "Failed to read revision register: %d\n", ret);
 549                 goto err_reset;
 550         }
 551         arizona->rev &= ARIZONA_DEVICE_REVISION_MASK;
 552
 553         switch (reg) {
 554 #ifdef CONFIG_MFD_WM5102
 555         case 0x5102:
 556                 type_name = "WM5102";
 557                 if (arizona->type != WM5102) {
 558                         dev_err(arizona->dev, "WM5102 registered as %d\n",
 559                                 arizona->type);
 560                         arizona->type = WM5102;
 561                 }
 562                 apply_patch = wm5102_patch;
 563                 arizona->rev &= 0x7;
 564                 break;
 565 #endif
 566 #ifdef CONFIG_MFD_WM5110
 567         case 0x5110:
 568                 type_name = "WM5110";
 569                 if (arizona->type != WM5110) {
 570                         dev_err(arizona->dev, "WM5110 registered as %d\n",
 571                                 arizona->type);
 572                         arizona->type = WM5110;
 573                 }
 574                 apply_patch = wm5110_patch;
 575                 break;
 576 #endif
 577         default:
 578                 dev_err(arizona->dev, "Unknown device ID %x\n", reg);
 579                 goto err_reset;
 580         }
 581
 582         dev_info(dev, "%s revision %c\n", type_name, arizona->rev + 'A');
 583
 584         /* If we have a /RESET GPIO we'll already be reset */
 585         if (!arizona->pdata.reset) {
 586                 regcache_mark_dirty(arizona->regmap);
 587
 588                 ret = regmap_write(arizona->regmap, ARIZONA_SOFTWARE_RESET, 0);
 589                 if (ret != 0) {
 590                         dev_err(dev, "Failed to reset device: %d\n", ret);
 591                         goto err_reset;
 592                 }
 593
 594                 msleep(1);
 595
 596                 ret = regcache_sync(arizona->regmap);
 597                 if (ret != 0) {
 598                         dev_err(dev, "Failed to sync device: %d\n", ret);
 599                         goto err_reset;
 600                 }
 601         }
 602
 603         switch (arizona->type) {
 604         case WM5102:
 605                 ret = regmap_read(arizona->regmap, 0x19, &val);
 606                 if (ret != 0)
 607                         dev_err(dev,
 608                                 "Failed to check write sequencer state: %d\n",
 609                                 ret);
 610                 else if (val & 0x01)
 611                         break;
 612                 /* Fall through */
 613         default:
 614                 ret = arizona_wait_for_boot(arizona);
 615                 if (ret != 0) {
 616                         dev_err(arizona->dev,
 617                                 "Device failed initial boot: %d\n", ret);
 618                         goto err_reset;
 619                 }
 620                 break;
 621         }
 622
 623         if (apply_patch) {
 624                 ret = apply_patch(arizona);
 625                 if (ret != 0) {
 626                         dev_err(arizona->dev, "Failed to apply patch: %d\n",
 627                                 ret);
 628                         goto err_reset;
 629                 }
 630
 631                 switch (arizona->type) {
 632                 case WM5102:
 633                         ret = arizona_apply_hardware_patch(arizona);
 634                         if (ret != 0) {
 635                                 dev_err(arizona->dev,
 636                                         "Failed to apply hardware patch: %d\n",
 637                                         ret);
 638                                 goto err_reset;
 639                         }
 640                         break;
 641                 default:
 642                         break;
 643                 }
 644         }
 645
 646         for (i = 0; i < ARRAY_SIZE(arizona->pdata.gpio_defaults); i++) {
 647                 if (!arizona->pdata.gpio_defaults[i])
 648                         continue;
 649
 650                 regmap_write(arizona->regmap, ARIZONA_GPIO1_CTRL + i,
 651                              arizona->pdata.gpio_defaults[i]);
 652         }
 653
 654         pm_runtime_set_autosuspend_delay(arizona->dev, 100);
 655         pm_runtime_use_autosuspend(arizona->dev);
 656         pm_runtime_enable(arizona->dev);
 657
 658         /* Chip default */
 659         if (!arizona->pdata.clk32k_src)
 660                 arizona->pdata.clk32k_src = ARIZONA_32KZ_MCLK2;
 661
 662         switch (arizona->pdata.clk32k_src) {
 663         case ARIZONA_32KZ_MCLK1:
 664         case ARIZONA_32KZ_MCLK2:
 665                 regmap_update_bits(arizona->regmap, ARIZONA_CLOCK_32K_1,
 666                                    ARIZONA_CLK_32K_SRC_MASK,
 667                                    arizona->pdata.clk32k_src - 1);
 668                 arizona_clk32k_enable(arizona);
 669                 break;
 670         case ARIZONA_32KZ_NONE:
 671                 regmap_update_bits(arizona->regmap, ARIZONA_CLOCK_32K_1,
 672                                    ARIZONA_CLK_32K_SRC_MASK, 2);
 673                 break;
 674         default:
 675                 dev_err(arizona->dev, "Invalid 32kHz clock source: %d\n",
 676                         arizona->pdata.clk32k_src);
 677                 ret = -EINVAL;
 678                 goto err_reset;
 679         }
 680
 681         for (i = 0; i < ARIZONA_MAX_MICBIAS; i++) {
 682                 if (!arizona->pdata.micbias[i].mV &&
 683                     !arizona->pdata.micbias[i].bypass)
 684                         continue;
 685
 686                 /* Apply default for bypass mode */
 687                 if (!arizona->pdata.micbias[i].mV)
 688                         arizona->pdata.micbias[i].mV = 2800;
 689
 690                 val = (arizona->pdata.micbias[i].mV - 1500) / 100;
 691
 692                 val <<= ARIZONA_MICB1_LVL_SHIFT;
 693
 694                 if (arizona->pdata.micbias[i].ext_cap)
 695                         val |= ARIZONA_MICB1_EXT_CAP;
 696
 697                 if (arizona->pdata.micbias[i].discharge)
 698                         val |= ARIZONA_MICB1_DISCH;
 699
 700                 if (arizona->pdata.micbias[i].fast_start)
 701                         val |= ARIZONA_MICB1_RATE;
 702
 703                 if (arizona->pdata.micbias[i].bypass)
 704                         val |= ARIZONA_MICB1_BYPASS;
 705
 706                 regmap_update_bits(arizona->regmap,
 707                                    ARIZONA_MIC_BIAS_CTRL_1 + i,
 708                                    ARIZONA_MICB1_LVL_MASK |
 709                                    ARIZONA_MICB1_DISCH |
 710                                    ARIZONA_MICB1_BYPASS |
 711                                    ARIZONA_MICB1_RATE, val);
 712         }
 713
 714         for (i = 0; i < ARIZONA_MAX_INPUT; i++) {
 715                 /* Default for both is 0 so noop with defaults */
 716                 val = arizona->pdata.dmic_ref[i]
 717                         << ARIZONA_IN1_DMIC_SUP_SHIFT;
 718                 val |= arizona->pdata.inmode[i] << ARIZONA_IN1_MODE_SHIFT;
 719
 720                 regmap_update_bits(arizona->regmap,
 721                                    ARIZONA_IN1L_CONTROL + (i * 8),
 722                                    ARIZONA_IN1_DMIC_SUP_MASK |
 723                                    ARIZONA_IN1_MODE_MASK, val);
 724         }
 725
 726         for (i = 0; i < ARIZONA_MAX_OUTPUT; i++) {
 727                 /* Default is 0 so noop with defaults */
 728                 if (arizona->pdata.out_mono[i])
 729                         val = ARIZONA_OUT1_MONO;
 730                 else
 731                         val = 0;
 732
 733                 regmap_update_bits(arizona->regmap,
 734                                    ARIZONA_OUTPUT_PATH_CONFIG_1L + (i * 8),
 735                                    ARIZONA_OUT1_MONO, val);
 736         }
 737
 738         for (i = 0; i < ARIZONA_MAX_PDM_SPK; i++) {
 739                 if (arizona->pdata.spk_mute[i])
 740                         regmap_update_bits(arizona->regmap,
 741                                            ARIZONA_PDM_SPK1_CTRL_1 + (i * 2),
 742                                            ARIZONA_SPK1_MUTE_ENDIAN_MASK |
 743                                            ARIZONA_SPK1_MUTE_SEQ1_MASK,
 744                                            arizona->pdata.spk_mute[i]);
 745
 746                 if (arizona->pdata.spk_fmt[i])
 747                         regmap_update_bits(arizona->regmap,
 748                                            ARIZONA_PDM_SPK1_CTRL_2 + (i * 2),
 749                                            ARIZONA_SPK1_FMT_MASK,
 750                                            arizona->pdata.spk_fmt[i]);
 751         }
 752
 753         /* Set up for interrupts */
 754         ret = arizona_irq_init(arizona);
 755         if (ret != 0)
 756                 goto err_reset;
 757
 758         arizona_request_irq(arizona, ARIZONA_IRQ_CLKGEN_ERR, "CLKGEN error",
 759                             arizona_clkgen_err, arizona);
 760         arizona_request_irq(arizona, ARIZONA_IRQ_OVERCLOCKED, "Overclocked",
 761                             arizona_overclocked, arizona);
 762         arizona_request_irq(arizona, ARIZONA_IRQ_UNDERCLOCKED, "Underclocked",
 763                             arizona_underclocked, arizona);
 764
 765         switch (arizona->type) {
 766         case WM5102:
 767                 ret = mfd_add_devices(arizona->dev, -1, wm5102_devs,
 768                                       ARRAY_SIZE(wm5102_devs), NULL, 0, NULL);
 769                 break;
 770         case WM5110:
 771                 ret = mfd_add_devices(arizona->dev, -1, wm5110_devs,
 772                                       ARRAY_SIZE(wm5110_devs), NULL, 0, NULL);
 773                 break;
 774         }
 775
 776         if (ret != 0) {
 777                 dev_err(arizona->dev, "Failed to add subdevices: %d\n", ret);
 778                 goto err_irq;
 779         }
 780
 781 #ifdef CONFIG_PM_RUNTIME
 782         regulator_disable(arizona->dcvdd);
 783 #endif
 784
 785         return 0;
 786
 787 err_irq:
 788         arizona_irq_exit(arizona);
 789 err_reset:
 790         if (arizona->pdata.reset) {
 791                 gpio_set_value_cansleep(arizona->pdata.reset, 0);
 792                 gpio_free(arizona->pdata.reset);
 793         }
 794         regulator_disable(arizona->dcvdd);
 795 err_enable:
 796         regulator_bulk_disable(arizona->num_core_supplies,
 797                                arizona->core_supplies);
 798 err_early:
 799         mfd_remove_devices(dev);
 800         return ret;
 801 }
 802 EXPORT_SYMBOL_GPL(arizona_dev_init);
 803
 804 int arizona_dev_exit(struct arizona *arizona)
 805 {
 806         mfd_remove_devices(arizona->dev);
 807         arizona_free_irq(arizona, ARIZONA_IRQ_UNDERCLOCKED, arizona);
 808         arizona_free_irq(arizona, ARIZONA_IRQ_OVERCLOCKED, arizona);
 809         arizona_free_irq(arizona, ARIZONA_IRQ_CLKGEN_ERR, arizona);
 810         pm_runtime_disable(arizona->dev);
 811         arizona_irq_exit(arizona);
 812         return 0;
 813 }
 814 EXPORT_SYMBOL_GPL(arizona_dev_exit);