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/clk.h>
  14 #include <linux/delay.h>
  15 #include <linux/err.h>
  16 #include <linux/gpio/consumer.h>
  17 #include <linux/interrupt.h>
  18 #include <linux/mfd/core.h>
  19 #include <linux/module.h>
  20 #include <linux/of.h>
  21 #include <linux/of_device.h>
  22 #include <linux/pm_runtime.h>
  23 #include <linux/regmap.h>
  24 #include <linux/regulator/consumer.h>
  25 #include <linux/regulator/machine.h>
  26 #include <linux/slab.h>
  27 #include <linux/platform_device.h>
  28
  29 #include <linux/mfd/arizona/core.h>
  30 #include <linux/mfd/arizona/registers.h>
  31
  32 #include "arizona.h"
  33
  34 static const char * const wm5102_core_supplies[] = {
  35         "AVDD",
  36         "DBVDD1",
  37 };
  38
  39 int arizona_clk32k_enable(struct arizona *arizona)
  40 {
  41         int ret = 0;
  42
  43         mutex_lock(&arizona->clk_lock);
  44
  45         arizona->clk32k_ref++;
  46
  47         if (arizona->clk32k_ref == 1) {
  48                 switch (arizona->pdata.clk32k_src) {
  49                 case ARIZONA_32KZ_MCLK1:
  50                         ret = pm_runtime_get_sync(arizona->dev);
  51                         if (ret != 0)
  52                                 goto err_ref;
  53                         ret = clk_prepare_enable(arizona->mclk[ARIZONA_MCLK1]);
  54                         if (ret != 0)
  55                                 goto err_pm;
  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_pm:
  70         pm_runtime_put_sync(arizona->dev);
  71 err_ref:
  72         if (ret != 0)
  73                 arizona->clk32k_ref--;
  74
  75         mutex_unlock(&arizona->clk_lock);
  76
  77         return ret;
  78 }
  79 EXPORT_SYMBOL_GPL(arizona_clk32k_enable);
  80
  81 int arizona_clk32k_disable(struct arizona *arizona)
  82 {
  83         mutex_lock(&arizona->clk_lock);
  84
  85         BUG_ON(arizona->clk32k_ref <= 0);
  86
  87         arizona->clk32k_ref--;
  88
  89         if (arizona->clk32k_ref == 0) {
  90                 regmap_update_bits(arizona->regmap, ARIZONA_CLOCK_32K_1,
  91                                    ARIZONA_CLK_32K_ENA, 0);
  92
  93                 switch (arizona->pdata.clk32k_src) {
  94                 case ARIZONA_32KZ_MCLK1:
  95                         pm_runtime_put_sync(arizona->dev);
  96                         clk_disable_unprepare(arizona->mclk[ARIZONA_MCLK1]);
  97                         break;
  98                 case ARIZONA_32KZ_MCLK2:
  99                         clk_disable_unprepare(arizona->mclk[ARIZONA_MCLK2]);
 100                         break;
 101                 }
 102         }
 103
 104         mutex_unlock(&arizona->clk_lock);
 105
 106         return 0;
 107 }
 108 EXPORT_SYMBOL_GPL(arizona_clk32k_disable);
 109
 110 static irqreturn_t arizona_clkgen_err(int irq, void *data)
 111 {
 112         struct arizona *arizona = data;
 113
 114         dev_err(arizona->dev, "CLKGEN error\n");
 115
 116         return IRQ_HANDLED;
 117 }
 118
 119 static irqreturn_t arizona_underclocked(int irq, void *data)
 120 {
 121         struct arizona *arizona = data;
 122         unsigned int val;
 123         int ret;
 124
 125         ret = regmap_read(arizona->regmap, ARIZONA_INTERRUPT_RAW_STATUS_8,
 126                           &val);
 127         if (ret != 0) {
 128                 dev_err(arizona->dev, "Failed to read underclock status: %d\n",
 129                         ret);
 130                 return IRQ_NONE;
 131         }
 132
 133         if (val & ARIZONA_AIF3_UNDERCLOCKED_STS)
 134                 dev_err(arizona->dev, "AIF3 underclocked\n");
 135         if (val & ARIZONA_AIF2_UNDERCLOCKED_STS)
 136                 dev_err(arizona->dev, "AIF2 underclocked\n");
 137         if (val & ARIZONA_AIF1_UNDERCLOCKED_STS)
 138                 dev_err(arizona->dev, "AIF1 underclocked\n");
 139         if (val & ARIZONA_ISRC3_UNDERCLOCKED_STS)
 140                 dev_err(arizona->dev, "ISRC3 underclocked\n");
 141         if (val & ARIZONA_ISRC2_UNDERCLOCKED_STS)
 142                 dev_err(arizona->dev, "ISRC2 underclocked\n");
 143         if (val & ARIZONA_ISRC1_UNDERCLOCKED_STS)
 144                 dev_err(arizona->dev, "ISRC1 underclocked\n");
 145         if (val & ARIZONA_FX_UNDERCLOCKED_STS)
 146                 dev_err(arizona->dev, "FX underclocked\n");
 147         if (val & ARIZONA_ASRC_UNDERCLOCKED_STS)
 148                 dev_err(arizona->dev, "ASRC underclocked\n");
 149         if (val & ARIZONA_DAC_UNDERCLOCKED_STS)
 150                 dev_err(arizona->dev, "DAC underclocked\n");
 151         if (val & ARIZONA_ADC_UNDERCLOCKED_STS)
 152                 dev_err(arizona->dev, "ADC underclocked\n");
 153         if (val & ARIZONA_MIXER_UNDERCLOCKED_STS)
 154                 dev_err(arizona->dev, "Mixer dropped sample\n");
 155
 156         return IRQ_HANDLED;
 157 }
 158
 159 static irqreturn_t arizona_overclocked(int irq, void *data)
 160 {
 161         struct arizona *arizona = data;
 162         unsigned int val[3];
 163         int ret;
 164
 165         ret = regmap_bulk_read(arizona->regmap, ARIZONA_INTERRUPT_RAW_STATUS_6,
 166                                &val[0], 3);
 167         if (ret != 0) {
 168                 dev_err(arizona->dev, "Failed to read overclock status: %d\n",
 169                         ret);
 170                 return IRQ_NONE;
 171         }
 172
 173         switch (arizona->type) {
 174         case WM8998:
 175         case WM1814:
 176                 /* Some bits are shifted on WM8998,
 177                  * rearrange to match the standard bit layout
 178                  */
 179                 val[0] = ((val[0] & 0x60e0) >> 1) |
 180                          ((val[0] & 0x1e00) >> 2) |
 181                          (val[0] & 0x000f);
 182                 break;
 183         default:
 184                 break;
 185         }
 186
 187         if (val[0] & ARIZONA_PWM_OVERCLOCKED_STS)
 188                 dev_err(arizona->dev, "PWM overclocked\n");
 189         if (val[0] & ARIZONA_FX_CORE_OVERCLOCKED_STS)
 190                 dev_err(arizona->dev, "FX core overclocked\n");
 191         if (val[0] & ARIZONA_DAC_SYS_OVERCLOCKED_STS)
 192                 dev_err(arizona->dev, "DAC SYS overclocked\n");
 193         if (val[0] & ARIZONA_DAC_WARP_OVERCLOCKED_STS)
 194                 dev_err(arizona->dev, "DAC WARP overclocked\n");
 195         if (val[0] & ARIZONA_ADC_OVERCLOCKED_STS)
 196                 dev_err(arizona->dev, "ADC overclocked\n");
 197         if (val[0] & ARIZONA_MIXER_OVERCLOCKED_STS)
 198                 dev_err(arizona->dev, "Mixer overclocked\n");
 199         if (val[0] & ARIZONA_AIF3_SYNC_OVERCLOCKED_STS)
 200                 dev_err(arizona->dev, "AIF3 overclocked\n");
 201         if (val[0] & ARIZONA_AIF2_SYNC_OVERCLOCKED_STS)
 202                 dev_err(arizona->dev, "AIF2 overclocked\n");
 203         if (val[0] & ARIZONA_AIF1_SYNC_OVERCLOCKED_STS)
 204                 dev_err(arizona->dev, "AIF1 overclocked\n");
 205         if (val[0] & ARIZONA_PAD_CTRL_OVERCLOCKED_STS)
 206                 dev_err(arizona->dev, "Pad control overclocked\n");
 207
 208         if (val[1] & ARIZONA_SLIMBUS_SUBSYS_OVERCLOCKED_STS)
 209                 dev_err(arizona->dev, "Slimbus subsystem overclocked\n");
 210         if (val[1] & ARIZONA_SLIMBUS_ASYNC_OVERCLOCKED_STS)
 211                 dev_err(arizona->dev, "Slimbus async overclocked\n");
 212         if (val[1] & ARIZONA_SLIMBUS_SYNC_OVERCLOCKED_STS)
 213                 dev_err(arizona->dev, "Slimbus sync overclocked\n");
 214         if (val[1] & ARIZONA_ASRC_ASYNC_SYS_OVERCLOCKED_STS)
 215                 dev_err(arizona->dev, "ASRC async system overclocked\n");
 216         if (val[1] & ARIZONA_ASRC_ASYNC_WARP_OVERCLOCKED_STS)
 217                 dev_err(arizona->dev, "ASRC async WARP overclocked\n");
 218         if (val[1] & ARIZONA_ASRC_SYNC_SYS_OVERCLOCKED_STS)
 219                 dev_err(arizona->dev, "ASRC sync system overclocked\n");
 220         if (val[1] & ARIZONA_ASRC_SYNC_WARP_OVERCLOCKED_STS)
 221                 dev_err(arizona->dev, "ASRC sync WARP overclocked\n");
 222         if (val[1] & ARIZONA_ADSP2_1_OVERCLOCKED_STS)
 223                 dev_err(arizona->dev, "DSP1 overclocked\n");
 224         if (val[1] & ARIZONA_ISRC3_OVERCLOCKED_STS)
 225                 dev_err(arizona->dev, "ISRC3 overclocked\n");
 226         if (val[1] & ARIZONA_ISRC2_OVERCLOCKED_STS)
 227                 dev_err(arizona->dev, "ISRC2 overclocked\n");
 228         if (val[1] & ARIZONA_ISRC1_OVERCLOCKED_STS)
 229                 dev_err(arizona->dev, "ISRC1 overclocked\n");
 230
 231         if (val[2] & ARIZONA_SPDIF_OVERCLOCKED_STS)
 232                 dev_err(arizona->dev, "SPDIF overclocked\n");
 233
 234         return IRQ_HANDLED;
 235 }
 236
 237 #define ARIZONA_REG_POLL_DELAY_US 7500
 238
 239 static int arizona_poll_reg(struct arizona *arizona,
 240                             int timeout_ms, unsigned int reg,
 241                             unsigned int mask, unsigned int target)
 242 {
 243         unsigned int val = 0;
 244         int ret;
 245
 246         ret = regmap_read_poll_timeout(arizona->regmap,
 247                                        reg, val, ((val & mask) == target),
 248                                        ARIZONA_REG_POLL_DELAY_US,
 249                                        timeout_ms * 1000);
 250         if (ret)
 251                 dev_err(arizona->dev, "Polling reg 0x%x timed out: %x\n",
 252                         reg, val);
 253
 254         return ret;
 255 }
 256
 257 static int arizona_wait_for_boot(struct arizona *arizona)
 258 {
 259         int ret;
 260
 261         /*
 262          * We can't use an interrupt as we need to runtime resume to do so,
 263          * we won't race with the interrupt handler as it'll be blocked on
 264          * runtime resume.
 265          */
 266         ret = arizona_poll_reg(arizona, 30, ARIZONA_INTERRUPT_RAW_STATUS_5,
 267                                ARIZONA_BOOT_DONE_STS, ARIZONA_BOOT_DONE_STS);
 268
 269         if (!ret)
 270                 regmap_write(arizona->regmap, ARIZONA_INTERRUPT_STATUS_5,
 271                              ARIZONA_BOOT_DONE_STS);
 272
 273         pm_runtime_mark_last_busy(arizona->dev);
 274
 275         return ret;
 276 }
 277
 278 static inline void arizona_enable_reset(struct arizona *arizona)
 279 {
 280         if (arizona->pdata.reset)
 281                 gpiod_set_raw_value_cansleep(arizona->pdata.reset, 0);
 282 }
 283
 284 static void arizona_disable_reset(struct arizona *arizona)
 285 {
 286         if (arizona->pdata.reset) {
 287                 switch (arizona->type) {
 288                 case WM5110:
 289                 case WM8280:
 290                         /* Meet requirements for minimum reset duration */
 291                         usleep_range(5000, 10000);
 292                         break;
 293                 default:
 294                         break;
 295                 }
 296
 297                 gpiod_set_raw_value_cansleep(arizona->pdata.reset, 1);
 298                 usleep_range(1000, 5000);
 299         }
 300 }
 301
 302 struct arizona_sysclk_state {
 303         unsigned int fll;
 304         unsigned int sysclk;
 305 };
 306
 307 static int arizona_enable_freerun_sysclk(struct arizona *arizona,
 308                                          struct arizona_sysclk_state *state)
 309 {
 310         int ret, err;
 311
 312         /* Cache existing FLL and SYSCLK settings */
 313         ret = regmap_read(arizona->regmap, ARIZONA_FLL1_CONTROL_1, &state->fll);
 314         if (ret) {
 315                 dev_err(arizona->dev, "Failed to cache FLL settings: %d\n",
 316                         ret);
 317                 return ret;
 318         }
 319         ret = regmap_read(arizona->regmap, ARIZONA_SYSTEM_CLOCK_1,
 320                           &state->sysclk);
 321         if (ret) {
 322                 dev_err(arizona->dev, "Failed to cache SYSCLK settings: %d\n",
 323                         ret);
 324                 return ret;
 325         }
 326
 327         /* Start up SYSCLK using the FLL in free running mode */
 328         ret = regmap_write(arizona->regmap, ARIZONA_FLL1_CONTROL_1,
 329                         ARIZONA_FLL1_ENA | ARIZONA_FLL1_FREERUN);
 330         if (ret) {
 331                 dev_err(arizona->dev,
 332                         "Failed to start FLL in freerunning mode: %d\n",
 333                         ret);
 334                 return ret;
 335         }
 336         ret = arizona_poll_reg(arizona, 180, ARIZONA_INTERRUPT_RAW_STATUS_5,
 337                                ARIZONA_FLL1_CLOCK_OK_STS,
 338                                ARIZONA_FLL1_CLOCK_OK_STS);
 339         if (ret)
 340                 goto err_fll;
 341
 342         ret = regmap_write(arizona->regmap, ARIZONA_SYSTEM_CLOCK_1, 0x0144);
 343         if (ret) {
 344                 dev_err(arizona->dev, "Failed to start SYSCLK: %d\n", ret);
 345                 goto err_fll;
 346         }
 347
 348         return 0;
 349
 350 err_fll:
 351         err = regmap_write(arizona->regmap, ARIZONA_FLL1_CONTROL_1, state->fll);
 352         if (err)
 353                 dev_err(arizona->dev,
 354                         "Failed to re-apply old FLL settings: %d\n", err);
 355
 356         return ret;
 357 }
 358
 359 static int arizona_disable_freerun_sysclk(struct arizona *arizona,
 360                                           struct arizona_sysclk_state *state)
 361 {
 362         int ret;
 363
 364         ret = regmap_write(arizona->regmap, ARIZONA_SYSTEM_CLOCK_1,
 365                            state->sysclk);
 366         if (ret) {
 367                 dev_err(arizona->dev,
 368                         "Failed to re-apply old SYSCLK settings: %d\n", ret);
 369                 return ret;
 370         }
 371
 372         ret = regmap_write(arizona->regmap, ARIZONA_FLL1_CONTROL_1, state->fll);
 373         if (ret) {
 374                 dev_err(arizona->dev,
 375                         "Failed to re-apply old FLL settings: %d\n", ret);
 376                 return ret;
 377         }
 378
 379         return 0;
 380 }
 381
 382 static int wm5102_apply_hardware_patch(struct arizona *arizona)
 383 {
 384         struct arizona_sysclk_state state;
 385         int err, ret;
 386
 387         ret = arizona_enable_freerun_sysclk(arizona, &state);
 388         if (ret)
 389                 return ret;
 390
 391         /* Start the write sequencer and wait for it to finish */
 392         ret = regmap_write(arizona->regmap, ARIZONA_WRITE_SEQUENCER_CTRL_0,
 393                            ARIZONA_WSEQ_ENA | ARIZONA_WSEQ_START | 160);
 394         if (ret) {
 395                 dev_err(arizona->dev, "Failed to start write sequencer: %d\n",
 396                         ret);
 397                 goto err;
 398         }
 399
 400         ret = arizona_poll_reg(arizona, 30, ARIZONA_WRITE_SEQUENCER_CTRL_1,
 401                                ARIZONA_WSEQ_BUSY, 0);
 402         if (ret)
 403                 regmap_write(arizona->regmap, ARIZONA_WRITE_SEQUENCER_CTRL_0,
 404                              ARIZONA_WSEQ_ABORT);
 405
 406 err:
 407         err = arizona_disable_freerun_sysclk(arizona, &state);
 408
 409         return ret ?: err;
 410 }
 411
 412 /*
 413  * Register patch to some of the CODECs internal write sequences
 414  * to ensure a clean exit from the low power sleep state.
 415  */
 416 static const struct reg_sequence wm5110_sleep_patch[] = {
 417         { 0x337A, 0xC100 },
 418         { 0x337B, 0x0041 },
 419         { 0x3300, 0xA210 },
 420         { 0x3301, 0x050C },
 421 };
 422
 423 static int wm5110_apply_sleep_patch(struct arizona *arizona)
 424 {
 425         struct arizona_sysclk_state state;
 426         int err, ret;
 427
 428         ret = arizona_enable_freerun_sysclk(arizona, &state);
 429         if (ret)
 430                 return ret;
 431
 432         ret = regmap_multi_reg_write_bypassed(arizona->regmap,
 433                                               wm5110_sleep_patch,
 434                                               ARRAY_SIZE(wm5110_sleep_patch));
 435
 436         err = arizona_disable_freerun_sysclk(arizona, &state);
 437
 438         return ret ?: err;
 439 }
 440
 441 static int wm5102_clear_write_sequencer(struct arizona *arizona)
 442 {
 443         int ret;
 444
 445         ret = regmap_write(arizona->regmap, ARIZONA_WRITE_SEQUENCER_CTRL_3,
 446                            0x0);
 447         if (ret) {
 448                 dev_err(arizona->dev,
 449                         "Failed to clear write sequencer state: %d\n", ret);
 450                 return ret;
 451         }
 452
 453         arizona_enable_reset(arizona);
 454         regulator_disable(arizona->dcvdd);
 455
 456         msleep(20);
 457
 458         ret = regulator_enable(arizona->dcvdd);
 459         if (ret) {
 460                 dev_err(arizona->dev, "Failed to re-enable DCVDD: %d\n", ret);
 461                 return ret;
 462         }
 463         arizona_disable_reset(arizona);
 464
 465         return 0;
 466 }
 467
 468 #ifdef CONFIG_PM
 469 static int arizona_isolate_dcvdd(struct arizona *arizona)
 470 {
 471         int ret;
 472
 473         ret = regmap_update_bits(arizona->regmap,
 474                                  ARIZONA_ISOLATION_CONTROL,
 475                                  ARIZONA_ISOLATE_DCVDD1,
 476                                  ARIZONA_ISOLATE_DCVDD1);
 477         if (ret != 0)
 478                 dev_err(arizona->dev, "Failed to isolate DCVDD: %d\n", ret);
 479
 480         return ret;
 481 }
 482
 483 static int arizona_connect_dcvdd(struct arizona *arizona)
 484 {
 485         int ret;
 486
 487         ret = regmap_update_bits(arizona->regmap,
 488                                  ARIZONA_ISOLATION_CONTROL,
 489                                  ARIZONA_ISOLATE_DCVDD1, 0);
 490         if (ret != 0)
 491                 dev_err(arizona->dev, "Failed to connect DCVDD: %d\n", ret);
 492
 493         return ret;
 494 }
 495
 496 static int arizona_is_jack_det_active(struct arizona *arizona)
 497 {
 498         unsigned int val;
 499         int ret;
 500
 501         ret = regmap_read(arizona->regmap, ARIZONA_JACK_DETECT_ANALOGUE, &val);
 502         if (ret) {
 503                 dev_err(arizona->dev,
 504                         "Failed to check jack det status: %d\n", ret);
 505                 return ret;
 506         } else if (val & ARIZONA_JD1_ENA) {
 507                 return 1;
 508         } else {
 509                 return 0;
 510         }
 511 }
 512
 513 static int arizona_runtime_resume(struct device *dev)
 514 {
 515         struct arizona *arizona = dev_get_drvdata(dev);
 516         int ret;
 517
 518         dev_dbg(arizona->dev, "Leaving AoD mode\n");
 519
 520         if (arizona->has_fully_powered_off) {
 521                 dev_dbg(arizona->dev, "Re-enabling core supplies\n");
 522
 523                 ret = regulator_bulk_enable(arizona->num_core_supplies,
 524                                             arizona->core_supplies);
 525                 if (ret) {
 526                         dev_err(dev, "Failed to enable core supplies: %d\n",
 527                                 ret);
 528                         return ret;
 529                 }
 530         }
 531
 532         ret = regulator_enable(arizona->dcvdd);
 533         if (ret != 0) {
 534                 dev_err(arizona->dev, "Failed to enable DCVDD: %d\n", ret);
 535                 if (arizona->has_fully_powered_off)
 536                         regulator_bulk_disable(arizona->num_core_supplies,
 537                                                arizona->core_supplies);
 538                 return ret;
 539         }
 540
 541         if (arizona->has_fully_powered_off) {
 542                 arizona_disable_reset(arizona);
 543                 enable_irq(arizona->irq);
 544                 arizona->has_fully_powered_off = false;
 545         }
 546
 547         regcache_cache_only(arizona->regmap, false);
 548
 549         switch (arizona->type) {
 550         case WM5102:
 551                 if (arizona->external_dcvdd) {
 552                         ret = arizona_connect_dcvdd(arizona);
 553                         if (ret != 0)
 554                                 goto err;
 555                 }
 556
 557                 ret = wm5102_patch(arizona);
 558                 if (ret != 0) {
 559                         dev_err(arizona->dev, "Failed to apply patch: %d\n",
 560                                 ret);
 561                         goto err;
 562                 }
 563
 564                 ret = wm5102_apply_hardware_patch(arizona);
 565                 if (ret) {
 566                         dev_err(arizona->dev,
 567                                 "Failed to apply hardware patch: %d\n",
 568                                 ret);
 569                         goto err;
 570                 }
 571                 break;
 572         case WM5110:
 573         case WM8280:
 574                 ret = arizona_wait_for_boot(arizona);
 575                 if (ret)
 576                         goto err;
 577
 578                 if (arizona->external_dcvdd) {
 579                         ret = arizona_connect_dcvdd(arizona);
 580                         if (ret != 0)
 581                                 goto err;
 582                 } else {
 583                         /*
 584                          * As this is only called for the internal regulator
 585                          * (where we know voltage ranges available) it is ok
 586                          * to request an exact range.
 587                          */
 588                         ret = regulator_set_voltage(arizona->dcvdd,
 589                                                     1200000, 1200000);
 590                         if (ret < 0) {
 591                                 dev_err(arizona->dev,
 592                                         "Failed to set resume voltage: %d\n",
 593                                         ret);
 594                                 goto err;
 595                         }
 596                 }
 597
 598                 ret = wm5110_apply_sleep_patch(arizona);
 599                 if (ret) {
 600                         dev_err(arizona->dev,
 601                                 "Failed to re-apply sleep patch: %d\n",
 602                                 ret);
 603                         goto err;
 604                 }
 605                 break;
 606         case WM1831:
 607         case CS47L24:
 608                 ret = arizona_wait_for_boot(arizona);
 609                 if (ret != 0)
 610                         goto err;
 611                 break;
 612         default:
 613                 ret = arizona_wait_for_boot(arizona);
 614                 if (ret != 0)
 615                         goto err;
 616
 617                 if (arizona->external_dcvdd) {
 618                         ret = arizona_connect_dcvdd(arizona);
 619                         if (ret != 0)
 620                                 goto err;
 621                 }
 622                 break;
 623         }
 624
 625         ret = regcache_sync(arizona->regmap);
 626         if (ret != 0) {
 627                 dev_err(arizona->dev, "Failed to restore register cache\n");
 628                 goto err;
 629         }
 630
 631         return 0;
 632
 633 err:
 634         regcache_cache_only(arizona->regmap, true);
 635         regulator_disable(arizona->dcvdd);
 636         return ret;
 637 }
 638
 639 static int arizona_runtime_suspend(struct device *dev)
 640 {
 641         struct arizona *arizona = dev_get_drvdata(dev);
 642         int jd_active = 0;
 643         int ret;
 644
 645         dev_dbg(arizona->dev, "Entering AoD mode\n");
 646
 647         switch (arizona->type) {
 648         case WM5110:
 649         case WM8280:
 650                 jd_active = arizona_is_jack_det_active(arizona);
 651                 if (jd_active < 0)
 652                         return jd_active;
 653
 654                 if (arizona->external_dcvdd) {
 655                         ret = arizona_isolate_dcvdd(arizona);
 656                         if (ret != 0)
 657                                 return ret;
 658                 } else {
 659                         /*
 660                          * As this is only called for the internal regulator
 661                          * (where we know voltage ranges available) it is ok
 662                          * to request an exact range.
 663                          */
 664                         ret = regulator_set_voltage(arizona->dcvdd,
 665                                                     1175000, 1175000);
 666                         if (ret < 0) {
 667                                 dev_err(arizona->dev,
 668                                         "Failed to set suspend voltage: %d\n",
 669                                         ret);
 670                                 return ret;
 671                         }
 672                 }
 673                 break;
 674         case WM5102:
 675                 jd_active = arizona_is_jack_det_active(arizona);
 676                 if (jd_active < 0)
 677                         return jd_active;
 678
 679                 if (arizona->external_dcvdd) {
 680                         ret = arizona_isolate_dcvdd(arizona);
 681                         if (ret != 0)
 682                                 return ret;
 683                 }
 684
 685                 if (!jd_active) {
 686                         ret = regmap_write(arizona->regmap,
 687                                            ARIZONA_WRITE_SEQUENCER_CTRL_3, 0x0);
 688                         if (ret) {
 689                                 dev_err(arizona->dev,
 690                                         "Failed to clear write sequencer: %d\n",
 691                                         ret);
 692                                 return ret;
 693                         }
 694                 }
 695                 break;
 696         case WM1831:
 697         case CS47L24:
 698                 break;
 699         default:
 700                 jd_active = arizona_is_jack_det_active(arizona);
 701                 if (jd_active < 0)
 702                         return jd_active;
 703
 704                 if (arizona->external_dcvdd) {
 705                         ret = arizona_isolate_dcvdd(arizona);
 706                         if (ret != 0)
 707                                 return ret;
 708                 }
 709                 break;
 710         }
 711
 712         regcache_cache_only(arizona->regmap, true);
 713         regcache_mark_dirty(arizona->regmap);
 714         regulator_disable(arizona->dcvdd);
 715
 716         /* Allow us to completely power down if no jack detection */
 717         if (!jd_active) {
 718                 dev_dbg(arizona->dev, "Fully powering off\n");
 719
 720                 arizona->has_fully_powered_off = true;
 721
 722                 disable_irq_nosync(arizona->irq);
 723                 arizona_enable_reset(arizona);
 724                 regulator_bulk_disable(arizona->num_core_supplies,
 725                                        arizona->core_supplies);
 726         }
 727
 728         return 0;
 729 }
 730 #endif
 731
 732 #ifdef CONFIG_PM_SLEEP
 733 static int arizona_suspend(struct device *dev)
 734 {
 735         struct arizona *arizona = dev_get_drvdata(dev);
 736
 737         dev_dbg(arizona->dev, "Suspend, disabling IRQ\n");
 738         disable_irq(arizona->irq);
 739
 740         return 0;
 741 }
 742
 743 static int arizona_suspend_noirq(struct device *dev)
 744 {
 745         struct arizona *arizona = dev_get_drvdata(dev);
 746
 747         dev_dbg(arizona->dev, "Late suspend, reenabling IRQ\n");
 748         enable_irq(arizona->irq);
 749
 750         return 0;
 751 }
 752
 753 static int arizona_resume_noirq(struct device *dev)
 754 {
 755         struct arizona *arizona = dev_get_drvdata(dev);
 756
 757         dev_dbg(arizona->dev, "Early resume, disabling IRQ\n");
 758         disable_irq(arizona->irq);
 759
 760         return 0;
 761 }
 762
 763 static int arizona_resume(struct device *dev)
 764 {
 765         struct arizona *arizona = dev_get_drvdata(dev);
 766
 767         dev_dbg(arizona->dev, "Resume, reenabling IRQ\n");
 768         enable_irq(arizona->irq);
 769
 770         return 0;
 771 }
 772 #endif
 773
 774 const struct dev_pm_ops arizona_pm_ops = {
 775         SET_RUNTIME_PM_OPS(arizona_runtime_suspend,
 776                            arizona_runtime_resume,
 777                            NULL)
 778         SET_SYSTEM_SLEEP_PM_OPS(arizona_suspend, arizona_resume)
 779         SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(arizona_suspend_noirq,
 780                                       arizona_resume_noirq)
 781 };
 782 EXPORT_SYMBOL_GPL(arizona_pm_ops);
 783
 784 #ifdef CONFIG_OF
 785 unsigned long arizona_of_get_type(struct device *dev)
 786 {
 787         const struct of_device_id *id = of_match_device(arizona_of_match, dev);
 788
 789         if (id)
 790                 return (unsigned long)id->data;
 791         else
 792                 return 0;
 793 }
 794 EXPORT_SYMBOL_GPL(arizona_of_get_type);
 795
 796 static int arizona_of_get_core_pdata(struct arizona *arizona)
 797 {
 798         struct arizona_pdata *pdata = &arizona->pdata;
 799         int ret, i;
 800
 801         /* Handle old non-standard DT binding */
 802         pdata->reset = devm_gpiod_get_from_of_node(arizona->dev,
 803                                                    arizona->dev->of_node,
 804                                                    "wlf,reset", 0,
 805                                                    GPIOD_OUT_LOW,
 806                                                    "arizona /RESET");
 807         if (IS_ERR(pdata->reset)) {
 808                 ret = PTR_ERR(pdata->reset);
 809
 810                 /*
 811                  * Reset missing will be caught when other binding is read
 812                  * but all other errors imply this binding is in use but has
 813                  * encountered a problem so should be handled.
 814                  */
 815                 if (ret == -EPROBE_DEFER)
 816                         return ret;
 817                 else if (ret != -ENOENT && ret != -ENOSYS)
 818                         dev_err(arizona->dev, "Reset GPIO malformed: %d\n",
 819                                 ret);
 820
 821                 pdata->reset = NULL;
 822         }
 823
 824         ret = of_property_read_u32_array(arizona->dev->of_node,
 825                                          "wlf,gpio-defaults",
 826                                          pdata->gpio_defaults,
 827                                          ARRAY_SIZE(pdata->gpio_defaults));
 828         if (ret >= 0) {
 829                 /*
 830                  * All values are literal except out of range values
 831                  * which are chip default, translate into platform
 832                  * data which uses 0 as chip default and out of range
 833                  * as zero.
 834                  */
 835                 for (i = 0; i < ARRAY_SIZE(pdata->gpio_defaults); i++) {
 836                         if (pdata->gpio_defaults[i] > 0xffff)
 837                                 pdata->gpio_defaults[i] = 0;
 838                         else if (pdata->gpio_defaults[i] == 0)
 839                                 pdata->gpio_defaults[i] = 0x10000;
 840                 }
 841         } else {
 842                 dev_err(arizona->dev, "Failed to parse GPIO defaults: %d\n",
 843                         ret);
 844         }
 845
 846         return 0;
 847 }
 848
 849 const struct of_device_id arizona_of_match[] = {
 850         { .compatible = "wlf,wm5102", .data = (void *)WM5102 },
 851         { .compatible = "wlf,wm5110", .data = (void *)WM5110 },
 852         { .compatible = "wlf,wm8280", .data = (void *)WM8280 },
 853         { .compatible = "wlf,wm8997", .data = (void *)WM8997 },
 854         { .compatible = "wlf,wm8998", .data = (void *)WM8998 },
 855         { .compatible = "wlf,wm1814", .data = (void *)WM1814 },
 856         { .compatible = "wlf,wm1831", .data = (void *)WM1831 },
 857         { .compatible = "cirrus,cs47l24", .data = (void *)CS47L24 },
 858         {},
 859 };
 860 EXPORT_SYMBOL_GPL(arizona_of_match);
 861 #else
 862 static inline int arizona_of_get_core_pdata(struct arizona *arizona)
 863 {
 864         return 0;
 865 }
 866 #endif
 867
 868 static const struct mfd_cell early_devs[] = {
 869         { .name = "arizona-ldo1" },
 870 };
 871
 872 static const char * const wm5102_supplies[] = {
 873         "MICVDD",
 874         "DBVDD2",
 875         "DBVDD3",
 876         "CPVDD",
 877         "SPKVDDL",
 878         "SPKVDDR",
 879 };
 880
 881 static const struct mfd_cell wm5102_devs[] = {
 882         { .name = "arizona-micsupp" },
 883         { .name = "arizona-gpio" },
 884         {
 885                 .name = "arizona-extcon",
 886                 .parent_supplies = wm5102_supplies,
 887                 .num_parent_supplies = 1, /* We only need MICVDD */
 888         },
 889         { .name = "arizona-haptics" },
 890         { .name = "arizona-pwm" },
 891         {
 892                 .name = "wm5102-codec",
 893                 .parent_supplies = wm5102_supplies,
 894                 .num_parent_supplies = ARRAY_SIZE(wm5102_supplies),
 895         },
 896 };
 897
 898 static const struct mfd_cell wm5110_devs[] = {
 899         { .name = "arizona-micsupp" },
 900         { .name = "arizona-gpio" },
 901         {
 902                 .name = "arizona-extcon",
 903                 .parent_supplies = wm5102_supplies,
 904                 .num_parent_supplies = 1, /* We only need MICVDD */
 905         },
 906         { .name = "arizona-haptics" },
 907         { .name = "arizona-pwm" },
 908         {
 909                 .name = "wm5110-codec",
 910                 .parent_supplies = wm5102_supplies,
 911                 .num_parent_supplies = ARRAY_SIZE(wm5102_supplies),
 912         },
 913 };
 914
 915 static const char * const cs47l24_supplies[] = {
 916         "MICVDD",
 917         "CPVDD",
 918         "SPKVDD",
 919 };
 920
 921 static const struct mfd_cell cs47l24_devs[] = {
 922         { .name = "arizona-gpio" },
 923         { .name = "arizona-haptics" },
 924         { .name = "arizona-pwm" },
 925         {
 926                 .name = "cs47l24-codec",
 927                 .parent_supplies = cs47l24_supplies,
 928                 .num_parent_supplies = ARRAY_SIZE(cs47l24_supplies),
 929         },
 930 };
 931
 932 static const char * const wm8997_supplies[] = {
 933         "MICVDD",
 934         "DBVDD2",
 935         "CPVDD",
 936         "SPKVDD",
 937 };
 938
 939 static const struct mfd_cell wm8997_devs[] = {
 940         { .name = "arizona-micsupp" },
 941         { .name = "arizona-gpio" },
 942         {
 943                 .name = "arizona-extcon",
 944                 .parent_supplies = wm8997_supplies,
 945                 .num_parent_supplies = 1, /* We only need MICVDD */
 946         },
 947         { .name = "arizona-haptics" },
 948         { .name = "arizona-pwm" },
 949         {
 950                 .name = "wm8997-codec",
 951                 .parent_supplies = wm8997_supplies,
 952                 .num_parent_supplies = ARRAY_SIZE(wm8997_supplies),
 953         },
 954 };
 955
 956 static const struct mfd_cell wm8998_devs[] = {
 957         { .name = "arizona-micsupp" },
 958         { .name = "arizona-gpio" },
 959         {
 960                 .name = "arizona-extcon",
 961                 .parent_supplies = wm5102_supplies,
 962                 .num_parent_supplies = 1, /* We only need MICVDD */
 963         },
 964         { .name = "arizona-haptics" },
 965         { .name = "arizona-pwm" },
 966         {
 967                 .name = "wm8998-codec",
 968                 .parent_supplies = wm5102_supplies,
 969                 .num_parent_supplies = ARRAY_SIZE(wm5102_supplies),
 970         },
 971 };
 972
 973 int arizona_dev_init(struct arizona *arizona)
 974 {
 975         const char * const mclk_name[] = { "mclk1", "mclk2" };
 976         struct device *dev = arizona->dev;
 977         const char *type_name = NULL;
 978         unsigned int reg, val;
 979         int (*apply_patch)(struct arizona *) = NULL;
 980         const struct mfd_cell *subdevs = NULL;
 981         int n_subdevs, ret, i;
 982
 983         dev_set_drvdata(arizona->dev, arizona);
 984         mutex_init(&arizona->clk_lock);
 985
 986         if (dev_get_platdata(arizona->dev)) {
 987                 memcpy(&arizona->pdata, dev_get_platdata(arizona->dev),
 988                        sizeof(arizona->pdata));
 989         } else {
 990                 ret = arizona_of_get_core_pdata(arizona);
 991                 if (ret < 0)
 992                         return ret;
 993         }
 994
 995         BUILD_BUG_ON(ARRAY_SIZE(arizona->mclk) != ARRAY_SIZE(mclk_name));
 996         for (i = 0; i < ARRAY_SIZE(arizona->mclk); i++) {
 997                 arizona->mclk[i] = devm_clk_get(arizona->dev, mclk_name[i]);
 998                 if (IS_ERR(arizona->mclk[i])) {
 999                         dev_info(arizona->dev, "Failed to get %s: %ld\n",
1000                                  mclk_name[i], PTR_ERR(arizona->mclk[i]));
1001                         arizona->mclk[i] = NULL;
1002                 }
1003         }
1004
1005         regcache_cache_only(arizona->regmap, true);
1006
1007         switch (arizona->type) {
1008         case WM5102:
1009         case WM5110:
1010         case WM8280:
1011         case WM8997:
1012         case WM8998:
1013         case WM1814:
1014         case WM1831:
1015         case CS47L24:
1016                 for (i = 0; i < ARRAY_SIZE(wm5102_core_supplies); i++)
1017                         arizona->core_supplies[i].supply
1018                                 = wm5102_core_supplies[i];
1019                 arizona->num_core_supplies = ARRAY_SIZE(wm5102_core_supplies);
1020                 break;
1021         default:
1022                 dev_err(arizona->dev, "Unknown device type %d\n",
1023                         arizona->type);
1024                 return -ENODEV;
1025         }
1026
1027         /* Mark DCVDD as external, LDO1 driver will clear if internal */
1028         arizona->external_dcvdd = true;
1029
1030         switch (arizona->type) {
1031         case WM1831:
1032         case CS47L24:
1033                 break; /* No LDO1 regulator */
1034         default:
1035                 ret = mfd_add_devices(arizona->dev, -1, early_devs,
1036                                       ARRAY_SIZE(early_devs), NULL, 0, NULL);
1037                 if (ret != 0) {
1038                         dev_err(dev, "Failed to add early children: %d\n", ret);
1039                         return ret;
1040                 }
1041                 break;
1042         }
1043
1044         ret = devm_regulator_bulk_get(dev, arizona->num_core_supplies,
1045                                       arizona->core_supplies);
1046         if (ret != 0) {
1047                 dev_err(dev, "Failed to request core supplies: %d\n",
1048                         ret);
1049                 goto err_early;
1050         }
1051
1052         /**
1053          * Don't use devres here because the only device we have to get
1054          * against is the MFD device and DCVDD will likely be supplied by
1055          * one of its children. Meaning that the regulator will be
1056          * destroyed by the time devres calls regulator put.
1057          */
1058         arizona->dcvdd = regulator_get(arizona->dev, "DCVDD");
1059         if (IS_ERR(arizona->dcvdd)) {
1060                 ret = PTR_ERR(arizona->dcvdd);
1061                 dev_err(dev, "Failed to request DCVDD: %d\n", ret);
1062                 goto err_early;
1063         }
1064
1065         if (!arizona->pdata.reset) {
1066                 /* Start out with /RESET low to put the chip into reset */
1067                 arizona->pdata.reset = devm_gpiod_get(arizona->dev, "reset",
1068                                                       GPIOD_OUT_LOW);
1069                 if (IS_ERR(arizona->pdata.reset)) {
1070                         ret = PTR_ERR(arizona->pdata.reset);
1071                         if (ret == -EPROBE_DEFER)
1072                                 goto err_dcvdd;
1073
1074                         dev_err(arizona->dev,
1075                                 "Reset GPIO missing/malformed: %d\n", ret);
1076
1077                         arizona->pdata.reset = NULL;
1078                 }
1079         }
1080
1081         ret = regulator_bulk_enable(arizona->num_core_supplies,
1082                                     arizona->core_supplies);
1083         if (ret != 0) {
1084                 dev_err(dev, "Failed to enable core supplies: %d\n",
1085                         ret);
1086                 goto err_dcvdd;
1087         }
1088
1089         ret = regulator_enable(arizona->dcvdd);
1090         if (ret != 0) {
1091                 dev_err(dev, "Failed to enable DCVDD: %d\n", ret);
1092                 goto err_enable;
1093         }
1094
1095         arizona_disable_reset(arizona);
1096
1097         regcache_cache_only(arizona->regmap, false);
1098
1099         /* Verify that this is a chip we know about */
1100         ret = regmap_read(arizona->regmap, ARIZONA_SOFTWARE_RESET, &reg);
1101         if (ret != 0) {
1102                 dev_err(dev, "Failed to read ID register: %d\n", ret);
1103                 goto err_reset;
1104         }
1105
1106         switch (reg) {
1107         case 0x5102:
1108         case 0x5110:
1109         case 0x6349:
1110         case 0x6363:
1111         case 0x8997:
1112                 break;
1113         default:
1114                 dev_err(arizona->dev, "Unknown device ID: %x\n", reg);
1115                 ret = -ENODEV;
1116                 goto err_reset;
1117         }
1118
1119         /* If we have a /RESET GPIO we'll already be reset */
1120         if (!arizona->pdata.reset) {
1121                 ret = regmap_write(arizona->regmap, ARIZONA_SOFTWARE_RESET, 0);
1122                 if (ret != 0) {
1123                         dev_err(dev, "Failed to reset device: %d\n", ret);
1124                         goto err_reset;
1125                 }
1126
1127                 usleep_range(1000, 5000);
1128         }
1129
1130         /* Ensure device startup is complete */
1131         switch (arizona->type) {
1132         case WM5102:
1133                 ret = regmap_read(arizona->regmap,
1134                                   ARIZONA_WRITE_SEQUENCER_CTRL_3, &val);
1135                 if (ret) {
1136                         dev_err(dev,
1137                                 "Failed to check write sequencer state: %d\n",
1138                                 ret);
1139                 } else if (val & 0x01) {
1140                         ret = wm5102_clear_write_sequencer(arizona);
1141                         if (ret)
1142                                 return ret;
1143                 }
1144                 break;
1145         default:
1146                 break;
1147         }
1148
1149         ret = arizona_wait_for_boot(arizona);
1150         if (ret) {
1151                 dev_err(arizona->dev, "Device failed initial boot: %d\n", ret);
1152                 goto err_reset;
1153         }
1154
1155         /* Read the device ID information & do device specific stuff */
1156         ret = regmap_read(arizona->regmap, ARIZONA_SOFTWARE_RESET, &reg);
1157         if (ret != 0) {
1158                 dev_err(dev, "Failed to read ID register: %d\n", ret);
1159                 goto err_reset;
1160         }
1161
1162         ret = regmap_read(arizona->regmap, ARIZONA_DEVICE_REVISION,
1163                           &arizona->rev);
1164         if (ret != 0) {
1165                 dev_err(dev, "Failed to read revision register: %d\n", ret);
1166                 goto err_reset;
1167         }
1168         arizona->rev &= ARIZONA_DEVICE_REVISION_MASK;
1169
1170         switch (reg) {
1171         case 0x5102:
1172                 if (IS_ENABLED(CONFIG_MFD_WM5102)) {
1173                         type_name = "WM5102";
1174                         if (arizona->type != WM5102) {
1175                                 dev_warn(arizona->dev,
1176                                          "WM5102 registered as %d\n",
1177                                          arizona->type);
1178                                 arizona->type = WM5102;
1179                         }
1180
1181                         apply_patch = wm5102_patch;
1182                         arizona->rev &= 0x7;
1183                         subdevs = wm5102_devs;
1184                         n_subdevs = ARRAY_SIZE(wm5102_devs);
1185                 }
1186                 break;
1187         case 0x5110:
1188                 if (IS_ENABLED(CONFIG_MFD_WM5110)) {
1189                         switch (arizona->type) {
1190                         case WM5110:
1191                                 type_name = "WM5110";
1192                                 break;
1193                         case WM8280:
1194                                 type_name = "WM8280";
1195                                 break;
1196                         default:
1197                                 type_name = "WM5110";
1198                                 dev_warn(arizona->dev,
1199                                          "WM5110 registered as %d\n",
1200                                          arizona->type);
1201                                 arizona->type = WM5110;
1202                                 break;
1203                         }
1204
1205                         apply_patch = wm5110_patch;
1206                         subdevs = wm5110_devs;
1207                         n_subdevs = ARRAY_SIZE(wm5110_devs);
1208                 }
1209                 break;
1210         case 0x6363:
1211                 if (IS_ENABLED(CONFIG_MFD_CS47L24)) {
1212                         switch (arizona->type) {
1213                         case CS47L24:
1214                                 type_name = "CS47L24";
1215                                 break;
1216
1217                         case WM1831:
1218                                 type_name = "WM1831";
1219                                 break;
1220
1221                         default:
1222                                 dev_warn(arizona->dev,
1223                                          "CS47L24 registered as %d\n",
1224                                          arizona->type);
1225                                 arizona->type = CS47L24;
1226                                 break;
1227                         }
1228
1229                         apply_patch = cs47l24_patch;
1230                         subdevs = cs47l24_devs;
1231                         n_subdevs = ARRAY_SIZE(cs47l24_devs);
1232                 }
1233                 break;
1234         case 0x8997:
1235                 if (IS_ENABLED(CONFIG_MFD_WM8997)) {
1236                         type_name = "WM8997";
1237                         if (arizona->type != WM8997) {
1238                                 dev_warn(arizona->dev,
1239                                          "WM8997 registered as %d\n",
1240                                          arizona->type);
1241                                 arizona->type = WM8997;
1242                         }
1243
1244                         apply_patch = wm8997_patch;
1245                         subdevs = wm8997_devs;
1246                         n_subdevs = ARRAY_SIZE(wm8997_devs);
1247                 }
1248                 break;
1249         case 0x6349:
1250                 if (IS_ENABLED(CONFIG_MFD_WM8998)) {
1251                         switch (arizona->type) {
1252                         case WM8998:
1253                                 type_name = "WM8998";
1254                                 break;
1255
1256                         case WM1814:
1257                                 type_name = "WM1814";
1258                                 break;
1259
1260                         default:
1261                                 type_name = "WM8998";
1262                                 dev_warn(arizona->dev,
1263                                          "WM8998 registered as %d\n",
1264                                          arizona->type);
1265                                 arizona->type = WM8998;
1266                         }
1267
1268                         apply_patch = wm8998_patch;
1269                         subdevs = wm8998_devs;
1270                         n_subdevs = ARRAY_SIZE(wm8998_devs);
1271                 }
1272                 break;
1273         default:
1274                 dev_err(arizona->dev, "Unknown device ID %x\n", reg);
1275                 ret = -ENODEV;
1276                 goto err_reset;
1277         }
1278
1279         if (!subdevs) {
1280                 dev_err(arizona->dev,
1281                         "No kernel support for device ID %x\n", reg);
1282                 ret = -ENODEV;
1283                 goto err_reset;
1284         }
1285
1286         dev_info(dev, "%s revision %c\n", type_name, arizona->rev + 'A');
1287
1288         if (apply_patch) {
1289                 ret = apply_patch(arizona);
1290                 if (ret != 0) {
1291                         dev_err(arizona->dev, "Failed to apply patch: %d\n",
1292                                 ret);
1293                         goto err_reset;
1294                 }
1295
1296                 switch (arizona->type) {
1297                 case WM5102:
1298                         ret = wm5102_apply_hardware_patch(arizona);
1299                         if (ret) {
1300                                 dev_err(arizona->dev,
1301                                         "Failed to apply hardware patch: %d\n",
1302                                         ret);
1303                                 goto err_reset;
1304                         }
1305                         break;
1306                 case WM5110:
1307                 case WM8280:
1308                         ret = wm5110_apply_sleep_patch(arizona);
1309                         if (ret) {
1310                                 dev_err(arizona->dev,
1311                                         "Failed to apply sleep patch: %d\n",
1312                                         ret);
1313                                 goto err_reset;
1314                         }
1315                         break;
1316                 default:
1317                         break;
1318                 }
1319         }
1320
1321         for (i = 0; i < ARRAY_SIZE(arizona->pdata.gpio_defaults); i++) {
1322                 if (!arizona->pdata.gpio_defaults[i])
1323                         continue;
1324
1325                 regmap_write(arizona->regmap, ARIZONA_GPIO1_CTRL + i,
1326                              arizona->pdata.gpio_defaults[i]);
1327         }
1328
1329         /* Chip default */
1330         if (!arizona->pdata.clk32k_src)
1331                 arizona->pdata.clk32k_src = ARIZONA_32KZ_MCLK2;
1332
1333         switch (arizona->pdata.clk32k_src) {
1334         case ARIZONA_32KZ_MCLK1:
1335         case ARIZONA_32KZ_MCLK2:
1336                 regmap_update_bits(arizona->regmap, ARIZONA_CLOCK_32K_1,
1337                                    ARIZONA_CLK_32K_SRC_MASK,
1338                                    arizona->pdata.clk32k_src - 1);
1339                 arizona_clk32k_enable(arizona);
1340                 break;
1341         case ARIZONA_32KZ_NONE:
1342                 regmap_update_bits(arizona->regmap, ARIZONA_CLOCK_32K_1,
1343                                    ARIZONA_CLK_32K_SRC_MASK, 2);
1344                 break;
1345         default:
1346                 dev_err(arizona->dev, "Invalid 32kHz clock source: %d\n",
1347                         arizona->pdata.clk32k_src);
1348                 ret = -EINVAL;
1349                 goto err_reset;
1350         }
1351
1352         for (i = 0; i < ARIZONA_MAX_MICBIAS; i++) {
1353                 if (!arizona->pdata.micbias[i].mV &&
1354                     !arizona->pdata.micbias[i].bypass)
1355                         continue;
1356
1357                 /* Apply default for bypass mode */
1358                 if (!arizona->pdata.micbias[i].mV)
1359                         arizona->pdata.micbias[i].mV = 2800;
1360
1361                 val = (arizona->pdata.micbias[i].mV - 1500) / 100;
1362
1363                 val <<= ARIZONA_MICB1_LVL_SHIFT;
1364
1365                 if (arizona->pdata.micbias[i].ext_cap)
1366                         val |= ARIZONA_MICB1_EXT_CAP;
1367
1368                 if (arizona->pdata.micbias[i].discharge)
1369                         val |= ARIZONA_MICB1_DISCH;
1370
1371                 if (arizona->pdata.micbias[i].soft_start)
1372                         val |= ARIZONA_MICB1_RATE;
1373
1374                 if (arizona->pdata.micbias[i].bypass)
1375                         val |= ARIZONA_MICB1_BYPASS;
1376
1377                 regmap_update_bits(arizona->regmap,
1378                                    ARIZONA_MIC_BIAS_CTRL_1 + i,
1379                                    ARIZONA_MICB1_LVL_MASK |
1380                                    ARIZONA_MICB1_EXT_CAP |
1381                                    ARIZONA_MICB1_DISCH |
1382                                    ARIZONA_MICB1_BYPASS |
1383                                    ARIZONA_MICB1_RATE, val);
1384         }
1385
1386         pm_runtime_set_active(arizona->dev);
1387         pm_runtime_enable(arizona->dev);
1388
1389         /* Set up for interrupts */
1390         ret = arizona_irq_init(arizona);
1391         if (ret != 0)
1392                 goto err_pm;
1393
1394         pm_runtime_set_autosuspend_delay(arizona->dev, 100);
1395         pm_runtime_use_autosuspend(arizona->dev);
1396
1397         arizona_request_irq(arizona, ARIZONA_IRQ_CLKGEN_ERR, "CLKGEN error",
1398                             arizona_clkgen_err, arizona);
1399         arizona_request_irq(arizona, ARIZONA_IRQ_OVERCLOCKED, "Overclocked",
1400                             arizona_overclocked, arizona);
1401         arizona_request_irq(arizona, ARIZONA_IRQ_UNDERCLOCKED, "Underclocked",
1402                             arizona_underclocked, arizona);
1403
1404         ret = mfd_add_devices(arizona->dev, PLATFORM_DEVID_NONE,
1405                               subdevs, n_subdevs, NULL, 0, NULL);
1406
1407         if (ret) {
1408                 dev_err(arizona->dev, "Failed to add subdevices: %d\n", ret);
1409                 goto err_irq;
1410         }
1411
1412         return 0;
1413
1414 err_irq:
1415         arizona_irq_exit(arizona);
1416 err_pm:
1417         pm_runtime_disable(arizona->dev);
1418 err_reset:
1419         arizona_enable_reset(arizona);
1420         regulator_disable(arizona->dcvdd);
1421 err_enable:
1422         regulator_bulk_disable(arizona->num_core_supplies,
1423                                arizona->core_supplies);
1424 err_dcvdd:
1425         regulator_put(arizona->dcvdd);
1426 err_early:
1427         mfd_remove_devices(dev);
1428         return ret;
1429 }
1430 EXPORT_SYMBOL_GPL(arizona_dev_init);
1431
1432 int arizona_dev_exit(struct arizona *arizona)
1433 {
1434         disable_irq(arizona->irq);
1435         pm_runtime_disable(arizona->dev);
1436
1437         regulator_disable(arizona->dcvdd);
1438         regulator_put(arizona->dcvdd);
1439
1440         mfd_remove_devices(arizona->dev);
1441         arizona_free_irq(arizona, ARIZONA_IRQ_UNDERCLOCKED, arizona);
1442         arizona_free_irq(arizona, ARIZONA_IRQ_OVERCLOCKED, arizona);
1443         arizona_free_irq(arizona, ARIZONA_IRQ_CLKGEN_ERR, arizona);
1444         arizona_irq_exit(arizona);
1445         arizona_enable_reset(arizona);
1446
1447         regulator_bulk_disable(arizona->num_core_supplies,
1448                                arizona->core_supplies);
1449         return 0;
1450 }
1451 EXPORT_SYMBOL_GPL(arizona_dev_exit);