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/of.h>
  20 #include <linux/of_device.h>
  21 #include <linux/of_gpio.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 out;
  53                         break;
  54                 }
  55
  56                 ret = regmap_update_bits(arizona->regmap, ARIZONA_CLOCK_32K_1,
  57                                          ARIZONA_CLK_32K_ENA,
  58                                          ARIZONA_CLK_32K_ENA);
  59         }
  60
  61 out:
  62         if (ret != 0)
  63                 arizona->clk32k_ref--;
  64
  65         mutex_unlock(&arizona->clk_lock);
  66
  67         return ret;
  68 }
  69 EXPORT_SYMBOL_GPL(arizona_clk32k_enable);
  70
  71 int arizona_clk32k_disable(struct arizona *arizona)
  72 {
  73         mutex_lock(&arizona->clk_lock);
  74
  75         BUG_ON(arizona->clk32k_ref <= 0);
  76
  77         arizona->clk32k_ref--;
  78
  79         if (arizona->clk32k_ref == 0) {
  80                 regmap_update_bits(arizona->regmap, ARIZONA_CLOCK_32K_1,
  81                                    ARIZONA_CLK_32K_ENA, 0);
  82
  83                 switch (arizona->pdata.clk32k_src) {
  84                 case ARIZONA_32KZ_MCLK1:
  85                         pm_runtime_put_sync(arizona->dev);
  86                         break;
  87                 }
  88         }
  89
  90         mutex_unlock(&arizona->clk_lock);
  91
  92         return 0;
  93 }
  94 EXPORT_SYMBOL_GPL(arizona_clk32k_disable);
  95
  96 static irqreturn_t arizona_clkgen_err(int irq, void *data)
  97 {
  98         struct arizona *arizona = data;
  99
 100         dev_err(arizona->dev, "CLKGEN error\n");
 101
 102         return IRQ_HANDLED;
 103 }
 104
 105 static irqreturn_t arizona_underclocked(int irq, void *data)
 106 {
 107         struct arizona *arizona = data;
 108         unsigned int val;
 109         int ret;
 110
 111         ret = regmap_read(arizona->regmap, ARIZONA_INTERRUPT_RAW_STATUS_8,
 112                           &val);
 113         if (ret != 0) {
 114                 dev_err(arizona->dev, "Failed to read underclock status: %d\n",
 115                         ret);
 116                 return IRQ_NONE;
 117         }
 118
 119         if (val & ARIZONA_AIF3_UNDERCLOCKED_STS)
 120                 dev_err(arizona->dev, "AIF3 underclocked\n");
 121         if (val & ARIZONA_AIF2_UNDERCLOCKED_STS)
 122                 dev_err(arizona->dev, "AIF2 underclocked\n");
 123         if (val & ARIZONA_AIF1_UNDERCLOCKED_STS)
 124                 dev_err(arizona->dev, "AIF1 underclocked\n");
 125         if (val & ARIZONA_ISRC3_UNDERCLOCKED_STS)
 126                 dev_err(arizona->dev, "ISRC3 underclocked\n");
 127         if (val & ARIZONA_ISRC2_UNDERCLOCKED_STS)
 128                 dev_err(arizona->dev, "ISRC2 underclocked\n");
 129         if (val & ARIZONA_ISRC1_UNDERCLOCKED_STS)
 130                 dev_err(arizona->dev, "ISRC1 underclocked\n");
 131         if (val & ARIZONA_FX_UNDERCLOCKED_STS)
 132                 dev_err(arizona->dev, "FX underclocked\n");
 133         if (val & ARIZONA_ASRC_UNDERCLOCKED_STS)
 134                 dev_err(arizona->dev, "ASRC underclocked\n");
 135         if (val & ARIZONA_DAC_UNDERCLOCKED_STS)
 136                 dev_err(arizona->dev, "DAC underclocked\n");
 137         if (val & ARIZONA_ADC_UNDERCLOCKED_STS)
 138                 dev_err(arizona->dev, "ADC underclocked\n");
 139         if (val & ARIZONA_MIXER_UNDERCLOCKED_STS)
 140                 dev_err(arizona->dev, "Mixer dropped sample\n");
 141
 142         return IRQ_HANDLED;
 143 }
 144
 145 static irqreturn_t arizona_overclocked(int irq, void *data)
 146 {
 147         struct arizona *arizona = data;
 148         unsigned int val[3];
 149         int ret;
 150
 151         ret = regmap_bulk_read(arizona->regmap, ARIZONA_INTERRUPT_RAW_STATUS_6,
 152                                &val[0], 3);
 153         if (ret != 0) {
 154                 dev_err(arizona->dev, "Failed to read overclock status: %d\n",
 155                         ret);
 156                 return IRQ_NONE;
 157         }
 158
 159         switch (arizona->type) {
 160         case WM8998:
 161         case WM1814:
 162                 /* Some bits are shifted on WM8998,
 163                  * rearrange to match the standard bit layout
 164                  */
 165                 val[0] = ((val[0] & 0x60e0) >> 1) |
 166                          ((val[0] & 0x1e00) >> 2) |
 167                          (val[0] & 0x000f);
 168                 break;
 169         default:
 170                 break;
 171         }
 172
 173         if (val[0] & ARIZONA_PWM_OVERCLOCKED_STS)
 174                 dev_err(arizona->dev, "PWM overclocked\n");
 175         if (val[0] & ARIZONA_FX_CORE_OVERCLOCKED_STS)
 176                 dev_err(arizona->dev, "FX core overclocked\n");
 177         if (val[0] & ARIZONA_DAC_SYS_OVERCLOCKED_STS)
 178                 dev_err(arizona->dev, "DAC SYS overclocked\n");
 179         if (val[0] & ARIZONA_DAC_WARP_OVERCLOCKED_STS)
 180                 dev_err(arizona->dev, "DAC WARP overclocked\n");
 181         if (val[0] & ARIZONA_ADC_OVERCLOCKED_STS)
 182                 dev_err(arizona->dev, "ADC overclocked\n");
 183         if (val[0] & ARIZONA_MIXER_OVERCLOCKED_STS)
 184                 dev_err(arizona->dev, "Mixer overclocked\n");
 185         if (val[0] & ARIZONA_AIF3_SYNC_OVERCLOCKED_STS)
 186                 dev_err(arizona->dev, "AIF3 overclocked\n");
 187         if (val[0] & ARIZONA_AIF2_SYNC_OVERCLOCKED_STS)
 188                 dev_err(arizona->dev, "AIF2 overclocked\n");
 189         if (val[0] & ARIZONA_AIF1_SYNC_OVERCLOCKED_STS)
 190                 dev_err(arizona->dev, "AIF1 overclocked\n");
 191         if (val[0] & ARIZONA_PAD_CTRL_OVERCLOCKED_STS)
 192                 dev_err(arizona->dev, "Pad control overclocked\n");
 193
 194         if (val[1] & ARIZONA_SLIMBUS_SUBSYS_OVERCLOCKED_STS)
 195                 dev_err(arizona->dev, "Slimbus subsystem overclocked\n");
 196         if (val[1] & ARIZONA_SLIMBUS_ASYNC_OVERCLOCKED_STS)
 197                 dev_err(arizona->dev, "Slimbus async overclocked\n");
 198         if (val[1] & ARIZONA_SLIMBUS_SYNC_OVERCLOCKED_STS)
 199                 dev_err(arizona->dev, "Slimbus sync overclocked\n");
 200         if (val[1] & ARIZONA_ASRC_ASYNC_SYS_OVERCLOCKED_STS)
 201                 dev_err(arizona->dev, "ASRC async system overclocked\n");
 202         if (val[1] & ARIZONA_ASRC_ASYNC_WARP_OVERCLOCKED_STS)
 203                 dev_err(arizona->dev, "ASRC async WARP overclocked\n");
 204         if (val[1] & ARIZONA_ASRC_SYNC_SYS_OVERCLOCKED_STS)
 205                 dev_err(arizona->dev, "ASRC sync system overclocked\n");
 206         if (val[1] & ARIZONA_ASRC_SYNC_WARP_OVERCLOCKED_STS)
 207                 dev_err(arizona->dev, "ASRC sync WARP overclocked\n");
 208         if (val[1] & ARIZONA_ADSP2_1_OVERCLOCKED_STS)
 209                 dev_err(arizona->dev, "DSP1 overclocked\n");
 210         if (val[1] & ARIZONA_ISRC3_OVERCLOCKED_STS)
 211                 dev_err(arizona->dev, "ISRC3 overclocked\n");
 212         if (val[1] & ARIZONA_ISRC2_OVERCLOCKED_STS)
 213                 dev_err(arizona->dev, "ISRC2 overclocked\n");
 214         if (val[1] & ARIZONA_ISRC1_OVERCLOCKED_STS)
 215                 dev_err(arizona->dev, "ISRC1 overclocked\n");
 216
 217         if (val[2] & ARIZONA_SPDIF_OVERCLOCKED_STS)
 218                 dev_err(arizona->dev, "SPDIF overclocked\n");
 219
 220         return IRQ_HANDLED;
 221 }
 222
 223 static int arizona_poll_reg(struct arizona *arizona,
 224                             int timeout, unsigned int reg,
 225                             unsigned int mask, unsigned int target)
 226 {
 227         unsigned int val = 0;
 228         int ret, i;
 229
 230         for (i = 0; i < timeout; i++) {
 231                 ret = regmap_read(arizona->regmap, reg, &val);
 232                 if (ret != 0) {
 233                         dev_err(arizona->dev, "Failed to read reg %u: %d\n",
 234                                 reg, ret);
 235                         continue;
 236                 }
 237
 238                 if ((val & mask) == target)
 239                         return 0;
 240
 241                 usleep_range(1000, 5000);
 242         }
 243
 244         dev_err(arizona->dev, "Polling reg %u timed out: %x\n", reg, val);
 245         return -ETIMEDOUT;
 246 }
 247
 248 static int arizona_wait_for_boot(struct arizona *arizona)
 249 {
 250         int ret;
 251
 252         /*
 253          * We can't use an interrupt as we need to runtime resume to do so,
 254          * we won't race with the interrupt handler as it'll be blocked on
 255          * runtime resume.
 256          */
 257         ret = arizona_poll_reg(arizona, 5, ARIZONA_INTERRUPT_RAW_STATUS_5,
 258                                ARIZONA_BOOT_DONE_STS, ARIZONA_BOOT_DONE_STS);
 259
 260         if (!ret)
 261                 regmap_write(arizona->regmap, ARIZONA_INTERRUPT_STATUS_5,
 262                              ARIZONA_BOOT_DONE_STS);
 263
 264         pm_runtime_mark_last_busy(arizona->dev);
 265
 266         return ret;
 267 }
 268
 269 static inline void arizona_enable_reset(struct arizona *arizona)
 270 {
 271         if (arizona->pdata.reset)
 272                 gpio_set_value_cansleep(arizona->pdata.reset, 0);
 273 }
 274
 275 static void arizona_disable_reset(struct arizona *arizona)
 276 {
 277         if (arizona->pdata.reset) {
 278                 switch (arizona->type) {
 279                 case WM5110:
 280                 case WM8280:
 281                         /* Meet requirements for minimum reset duration */
 282                         usleep_range(5000, 10000);
 283                         break;
 284                 default:
 285                         break;
 286                 }
 287
 288                 gpio_set_value_cansleep(arizona->pdata.reset, 1);
 289                 usleep_range(1000, 5000);
 290         }
 291 }
 292
 293 struct arizona_sysclk_state {
 294         unsigned int fll;
 295         unsigned int sysclk;
 296 };
 297
 298 static int arizona_enable_freerun_sysclk(struct arizona *arizona,
 299                                          struct arizona_sysclk_state *state)
 300 {
 301         int ret, err;
 302
 303         /* Cache existing FLL and SYSCLK settings */
 304         ret = regmap_read(arizona->regmap, ARIZONA_FLL1_CONTROL_1, &state->fll);
 305         if (ret) {
 306                 dev_err(arizona->dev, "Failed to cache FLL settings: %d\n",
 307                         ret);
 308                 return ret;
 309         }
 310         ret = regmap_read(arizona->regmap, ARIZONA_SYSTEM_CLOCK_1,
 311                           &state->sysclk);
 312         if (ret) {
 313                 dev_err(arizona->dev, "Failed to cache SYSCLK settings: %d\n",
 314                         ret);
 315                 return ret;
 316         }
 317
 318         /* Start up SYSCLK using the FLL in free running mode */
 319         ret = regmap_write(arizona->regmap, ARIZONA_FLL1_CONTROL_1,
 320                         ARIZONA_FLL1_ENA | ARIZONA_FLL1_FREERUN);
 321         if (ret) {
 322                 dev_err(arizona->dev,
 323                         "Failed to start FLL in freerunning mode: %d\n",
 324                         ret);
 325                 return ret;
 326         }
 327         ret = arizona_poll_reg(arizona, 25, ARIZONA_INTERRUPT_RAW_STATUS_5,
 328                                ARIZONA_FLL1_CLOCK_OK_STS,
 329                                ARIZONA_FLL1_CLOCK_OK_STS);
 330         if (ret) {
 331                 ret = -ETIMEDOUT;
 332                 goto err_fll;
 333         }
 334
 335         ret = regmap_write(arizona->regmap, ARIZONA_SYSTEM_CLOCK_1, 0x0144);
 336         if (ret) {
 337                 dev_err(arizona->dev, "Failed to start SYSCLK: %d\n", ret);
 338                 goto err_fll;
 339         }
 340
 341         return 0;
 342
 343 err_fll:
 344         err = regmap_write(arizona->regmap, ARIZONA_FLL1_CONTROL_1, state->fll);
 345         if (err)
 346                 dev_err(arizona->dev,
 347                         "Failed to re-apply old FLL settings: %d\n", err);
 348
 349         return ret;
 350 }
 351
 352 static int arizona_disable_freerun_sysclk(struct arizona *arizona,
 353                                           struct arizona_sysclk_state *state)
 354 {
 355         int ret;
 356
 357         ret = regmap_write(arizona->regmap, ARIZONA_SYSTEM_CLOCK_1,
 358                            state->sysclk);
 359         if (ret) {
 360                 dev_err(arizona->dev,
 361                         "Failed to re-apply old SYSCLK settings: %d\n", ret);
 362                 return ret;
 363         }
 364
 365         ret = regmap_write(arizona->regmap, ARIZONA_FLL1_CONTROL_1, state->fll);
 366         if (ret) {
 367                 dev_err(arizona->dev,
 368                         "Failed to re-apply old FLL settings: %d\n", ret);
 369                 return ret;
 370         }
 371
 372         return 0;
 373 }
 374
 375 static int wm5102_apply_hardware_patch(struct arizona *arizona)
 376 {
 377         struct arizona_sysclk_state state;
 378         int err, ret;
 379
 380         ret = arizona_enable_freerun_sysclk(arizona, &state);
 381         if (ret)
 382                 return ret;
 383
 384         /* Start the write sequencer and wait for it to finish */
 385         ret = regmap_write(arizona->regmap, ARIZONA_WRITE_SEQUENCER_CTRL_0,
 386                            ARIZONA_WSEQ_ENA | ARIZONA_WSEQ_START | 160);
 387         if (ret) {
 388                 dev_err(arizona->dev, "Failed to start write sequencer: %d\n",
 389                         ret);
 390                 goto err;
 391         }
 392
 393         ret = arizona_poll_reg(arizona, 5, ARIZONA_WRITE_SEQUENCER_CTRL_1,
 394                                ARIZONA_WSEQ_BUSY, 0);
 395         if (ret) {
 396                 regmap_write(arizona->regmap, ARIZONA_WRITE_SEQUENCER_CTRL_0,
 397                              ARIZONA_WSEQ_ABORT);
 398                 ret = -ETIMEDOUT;
 399         }
 400
 401 err:
 402         err = arizona_disable_freerun_sysclk(arizona, &state);
 403
 404         return ret ?: err;
 405 }
 406
 407 /*
 408  * Register patch to some of the CODECs internal write sequences
 409  * to ensure a clean exit from the low power sleep state.
 410  */
 411 static const struct reg_sequence wm5110_sleep_patch[] = {
 412         { 0x337A, 0xC100 },
 413         { 0x337B, 0x0041 },
 414         { 0x3300, 0xA210 },
 415         { 0x3301, 0x050C },
 416 };
 417
 418 static int wm5110_apply_sleep_patch(struct arizona *arizona)
 419 {
 420         struct arizona_sysclk_state state;
 421         int err, ret;
 422
 423         ret = arizona_enable_freerun_sysclk(arizona, &state);
 424         if (ret)
 425                 return ret;
 426
 427         ret = regmap_multi_reg_write_bypassed(arizona->regmap,
 428                                               wm5110_sleep_patch,
 429                                               ARRAY_SIZE(wm5110_sleep_patch));
 430
 431         err = arizona_disable_freerun_sysclk(arizona, &state);
 432
 433         return ret ?: err;
 434 }
 435
 436 static int wm5102_clear_write_sequencer(struct arizona *arizona)
 437 {
 438         int ret;
 439
 440         ret = regmap_write(arizona->regmap, ARIZONA_WRITE_SEQUENCER_CTRL_3,
 441                            0x0);
 442         if (ret) {
 443                 dev_err(arizona->dev,
 444                         "Failed to clear write sequencer state: %d\n", ret);
 445                 return ret;
 446         }
 447
 448         arizona_enable_reset(arizona);
 449         regulator_disable(arizona->dcvdd);
 450
 451         msleep(20);
 452
 453         ret = regulator_enable(arizona->dcvdd);
 454         if (ret) {
 455                 dev_err(arizona->dev, "Failed to re-enable DCVDD: %d\n", ret);
 456                 return ret;
 457         }
 458         arizona_disable_reset(arizona);
 459
 460         return 0;
 461 }
 462
 463 #ifdef CONFIG_PM
 464 static int arizona_isolate_dcvdd(struct arizona *arizona)
 465 {
 466         int ret;
 467
 468         ret = regmap_update_bits(arizona->regmap,
 469                                  ARIZONA_ISOLATION_CONTROL,
 470                                  ARIZONA_ISOLATE_DCVDD1,
 471                                  ARIZONA_ISOLATE_DCVDD1);
 472         if (ret != 0)
 473                 dev_err(arizona->dev, "Failed to isolate DCVDD: %d\n", ret);
 474
 475         return ret;
 476 }
 477
 478 static int arizona_connect_dcvdd(struct arizona *arizona)
 479 {
 480         int ret;
 481
 482         ret = regmap_update_bits(arizona->regmap,
 483                                  ARIZONA_ISOLATION_CONTROL,
 484                                  ARIZONA_ISOLATE_DCVDD1, 0);
 485         if (ret != 0)
 486                 dev_err(arizona->dev, "Failed to connect DCVDD: %d\n", ret);
 487
 488         return ret;
 489 }
 490
 491 static int arizona_is_jack_det_active(struct arizona *arizona)
 492 {
 493         unsigned int val;
 494         int ret;
 495
 496         ret = regmap_read(arizona->regmap, ARIZONA_JACK_DETECT_ANALOGUE, &val);
 497         if (ret) {
 498                 dev_err(arizona->dev,
 499                         "Failed to check jack det status: %d\n", ret);
 500                 return ret;
 501         } else if (val & ARIZONA_JD1_ENA) {
 502                 return 1;
 503         } else {
 504                 return 0;
 505         }
 506 }
 507
 508 static int arizona_runtime_resume(struct device *dev)
 509 {
 510         struct arizona *arizona = dev_get_drvdata(dev);
 511         int ret;
 512
 513         dev_dbg(arizona->dev, "Leaving AoD mode\n");
 514
 515         if (arizona->has_fully_powered_off) {
 516                 dev_dbg(arizona->dev, "Re-enabling core supplies\n");
 517
 518                 ret = regulator_bulk_enable(arizona->num_core_supplies,
 519                                             arizona->core_supplies);
 520                 if (ret) {
 521                         dev_err(dev, "Failed to enable core supplies: %d\n",
 522                                 ret);
 523                         return ret;
 524                 }
 525         }
 526
 527         ret = regulator_enable(arizona->dcvdd);
 528         if (ret != 0) {
 529                 dev_err(arizona->dev, "Failed to enable DCVDD: %d\n", ret);
 530                 if (arizona->has_fully_powered_off)
 531                         regulator_bulk_disable(arizona->num_core_supplies,
 532                                                arizona->core_supplies);
 533                 return ret;
 534         }
 535
 536         if (arizona->has_fully_powered_off) {
 537                 arizona_disable_reset(arizona);
 538                 enable_irq(arizona->irq);
 539                 arizona->has_fully_powered_off = false;
 540         }
 541
 542         regcache_cache_only(arizona->regmap, false);
 543
 544         switch (arizona->type) {
 545         case WM5102:
 546                 if (arizona->external_dcvdd) {
 547                         ret = arizona_connect_dcvdd(arizona);
 548                         if (ret != 0)
 549                                 goto err;
 550                 }
 551
 552                 ret = wm5102_patch(arizona);
 553                 if (ret != 0) {
 554                         dev_err(arizona->dev, "Failed to apply patch: %d\n",
 555                                 ret);
 556                         goto err;
 557                 }
 558
 559                 ret = wm5102_apply_hardware_patch(arizona);
 560                 if (ret) {
 561                         dev_err(arizona->dev,
 562                                 "Failed to apply hardware patch: %d\n",
 563                                 ret);
 564                         goto err;
 565                 }
 566                 break;
 567         case WM5110:
 568         case WM8280:
 569                 ret = arizona_wait_for_boot(arizona);
 570                 if (ret)
 571                         goto err;
 572
 573                 if (arizona->external_dcvdd) {
 574                         ret = arizona_connect_dcvdd(arizona);
 575                         if (ret != 0)
 576                                 goto err;
 577                 } else {
 578                         /*
 579                          * As this is only called for the internal regulator
 580                          * (where we know voltage ranges available) it is ok
 581                          * to request an exact range.
 582                          */
 583                         ret = regulator_set_voltage(arizona->dcvdd,
 584                                                     1200000, 1200000);
 585                         if (ret < 0) {
 586                                 dev_err(arizona->dev,
 587                                         "Failed to set resume voltage: %d\n",
 588                                         ret);
 589                                 goto err;
 590                         }
 591                 }
 592
 593                 ret = wm5110_apply_sleep_patch(arizona);
 594                 if (ret) {
 595                         dev_err(arizona->dev,
 596                                 "Failed to re-apply sleep patch: %d\n",
 597                                 ret);
 598                         goto err;
 599                 }
 600                 break;
 601         case WM1831:
 602         case CS47L24:
 603                 ret = arizona_wait_for_boot(arizona);
 604                 if (ret != 0)
 605                         goto err;
 606                 break;
 607         default:
 608                 ret = arizona_wait_for_boot(arizona);
 609                 if (ret != 0)
 610                         goto err;
 611
 612                 if (arizona->external_dcvdd) {
 613                         ret = arizona_connect_dcvdd(arizona);
 614                         if (ret != 0)
 615                                 goto err;
 616                 }
 617                 break;
 618         }
 619
 620         ret = regcache_sync(arizona->regmap);
 621         if (ret != 0) {
 622                 dev_err(arizona->dev, "Failed to restore register cache\n");
 623                 goto err;
 624         }
 625
 626         return 0;
 627
 628 err:
 629         regcache_cache_only(arizona->regmap, true);
 630         regulator_disable(arizona->dcvdd);
 631         return ret;
 632 }
 633
 634 static int arizona_runtime_suspend(struct device *dev)
 635 {
 636         struct arizona *arizona = dev_get_drvdata(dev);
 637         int jd_active = 0;
 638         int ret;
 639
 640         dev_dbg(arizona->dev, "Entering AoD mode\n");
 641
 642         switch (arizona->type) {
 643         case WM5110:
 644         case WM8280:
 645                 jd_active = arizona_is_jack_det_active(arizona);
 646                 if (jd_active < 0)
 647                         return jd_active;
 648
 649                 if (arizona->external_dcvdd) {
 650                         ret = arizona_isolate_dcvdd(arizona);
 651                         if (ret != 0)
 652                                 return ret;
 653                 } else {
 654                         /*
 655                          * As this is only called for the internal regulator
 656                          * (where we know voltage ranges available) it is ok
 657                          * to request an exact range.
 658                          */
 659                         ret = regulator_set_voltage(arizona->dcvdd,
 660                                                     1175000, 1175000);
 661                         if (ret < 0) {
 662                                 dev_err(arizona->dev,
 663                                         "Failed to set suspend voltage: %d\n",
 664                                         ret);
 665                                 return ret;
 666                         }
 667                 }
 668                 break;
 669         case WM5102:
 670                 jd_active = arizona_is_jack_det_active(arizona);
 671                 if (jd_active < 0)
 672                         return jd_active;
 673
 674                 if (arizona->external_dcvdd) {
 675                         ret = arizona_isolate_dcvdd(arizona);
 676                         if (ret != 0)
 677                                 return ret;
 678                 }
 679
 680                 if (!jd_active) {
 681                         ret = regmap_write(arizona->regmap,
 682                                            ARIZONA_WRITE_SEQUENCER_CTRL_3, 0x0);
 683                         if (ret) {
 684                                 dev_err(arizona->dev,
 685                                         "Failed to clear write sequencer: %d\n",
 686                                         ret);
 687                                 return ret;
 688                         }
 689                 }
 690                 break;
 691         case WM1831:
 692         case CS47L24:
 693                 break;
 694         default:
 695                 jd_active = arizona_is_jack_det_active(arizona);
 696                 if (jd_active < 0)
 697                         return jd_active;
 698
 699                 if (arizona->external_dcvdd) {
 700                         ret = arizona_isolate_dcvdd(arizona);
 701                         if (ret != 0)
 702                                 return ret;
 703                 }
 704                 break;
 705         }
 706
 707         regcache_cache_only(arizona->regmap, true);
 708         regcache_mark_dirty(arizona->regmap);
 709         regulator_disable(arizona->dcvdd);
 710
 711         /* Allow us to completely power down if no jack detection */
 712         if (!jd_active) {
 713                 dev_dbg(arizona->dev, "Fully powering off\n");
 714
 715                 arizona->has_fully_powered_off = true;
 716
 717                 disable_irq_nosync(arizona->irq);
 718                 arizona_enable_reset(arizona);
 719                 regulator_bulk_disable(arizona->num_core_supplies,
 720                                        arizona->core_supplies);
 721         }
 722
 723         return 0;
 724 }
 725 #endif
 726
 727 #ifdef CONFIG_PM_SLEEP
 728 static int arizona_suspend(struct device *dev)
 729 {
 730         struct arizona *arizona = dev_get_drvdata(dev);
 731
 732         dev_dbg(arizona->dev, "Suspend, disabling IRQ\n");
 733         disable_irq(arizona->irq);
 734
 735         return 0;
 736 }
 737
 738 static int arizona_suspend_late(struct device *dev)
 739 {
 740         struct arizona *arizona = dev_get_drvdata(dev);
 741
 742         dev_dbg(arizona->dev, "Late suspend, reenabling IRQ\n");
 743         enable_irq(arizona->irq);
 744
 745         return 0;
 746 }
 747
 748 static int arizona_resume_noirq(struct device *dev)
 749 {
 750         struct arizona *arizona = dev_get_drvdata(dev);
 751
 752         dev_dbg(arizona->dev, "Early resume, disabling IRQ\n");
 753         disable_irq(arizona->irq);
 754
 755         return 0;
 756 }
 757
 758 static int arizona_resume(struct device *dev)
 759 {
 760         struct arizona *arizona = dev_get_drvdata(dev);
 761
 762         dev_dbg(arizona->dev, "Late resume, reenabling IRQ\n");
 763         enable_irq(arizona->irq);
 764
 765         return 0;
 766 }
 767 #endif
 768
 769 const struct dev_pm_ops arizona_pm_ops = {
 770         SET_RUNTIME_PM_OPS(arizona_runtime_suspend,
 771                            arizona_runtime_resume,
 772                            NULL)
 773         SET_SYSTEM_SLEEP_PM_OPS(arizona_suspend, arizona_resume)
 774 #ifdef CONFIG_PM_SLEEP
 775         .suspend_late = arizona_suspend_late,
 776         .resume_noirq = arizona_resume_noirq,
 777 #endif
 778 };
 779 EXPORT_SYMBOL_GPL(arizona_pm_ops);
 780
 781 #ifdef CONFIG_OF
 782 unsigned long arizona_of_get_type(struct device *dev)
 783 {
 784         const struct of_device_id *id = of_match_device(arizona_of_match, dev);
 785
 786         if (id)
 787                 return (unsigned long)id->data;
 788         else
 789                 return 0;
 790 }
 791 EXPORT_SYMBOL_GPL(arizona_of_get_type);
 792
 793 int arizona_of_get_named_gpio(struct arizona *arizona, const char *prop,
 794                               bool mandatory)
 795 {
 796         int gpio;
 797
 798         gpio = of_get_named_gpio(arizona->dev->of_node, prop, 0);
 799         if (gpio < 0) {
 800                 if (mandatory)
 801                         dev_err(arizona->dev,
 802                                 "Mandatory DT gpio %s missing/malformed: %d\n",
 803                                 prop, gpio);
 804
 805                 gpio = 0;
 806         }
 807
 808         return gpio;
 809 }
 810 EXPORT_SYMBOL_GPL(arizona_of_get_named_gpio);
 811
 812 static int arizona_of_get_core_pdata(struct arizona *arizona)
 813 {
 814         struct arizona_pdata *pdata = &arizona->pdata;
 815         struct property *prop;
 816         const __be32 *cur;
 817         u32 val;
 818         int ret, i;
 819         int count = 0;
 820
 821         pdata->reset = arizona_of_get_named_gpio(arizona, "wlf,reset", true);
 822
 823         ret = of_property_read_u32_array(arizona->dev->of_node,
 824                                          "wlf,gpio-defaults",
 825                                          pdata->gpio_defaults,
 826                                          ARRAY_SIZE(pdata->gpio_defaults));
 827         if (ret >= 0) {
 828                 /*
 829                  * All values are literal except out of range values
 830                  * which are chip default, translate into platform
 831                  * data which uses 0 as chip default and out of range
 832                  * as zero.
 833                  */
 834                 for (i = 0; i < ARRAY_SIZE(pdata->gpio_defaults); i++) {
 835                         if (pdata->gpio_defaults[i] > 0xffff)
 836                                 pdata->gpio_defaults[i] = 0;
 837                         else if (pdata->gpio_defaults[i] == 0)
 838                                 pdata->gpio_defaults[i] = 0x10000;
 839                 }
 840         } else {
 841                 dev_err(arizona->dev, "Failed to parse GPIO defaults: %d\n",
 842                         ret);
 843         }
 844
 845         of_property_for_each_u32(arizona->dev->of_node, "wlf,inmode", prop,
 846                                  cur, val) {
 847                 if (count == ARRAY_SIZE(pdata->inmode))
 848                         break;
 849
 850                 pdata->inmode[count] = val;
 851                 count++;
 852         }
 853
 854         count = 0;
 855         of_property_for_each_u32(arizona->dev->of_node, "wlf,dmic-ref", prop,
 856                                  cur, val) {
 857                 if (count == ARRAY_SIZE(pdata->dmic_ref))
 858                         break;
 859
 860                 pdata->dmic_ref[count] = val;
 861                 count++;
 862         }
 863
 864         count = 0;
 865         of_property_for_each_u32(arizona->dev->of_node, "wlf,out-mono", prop,
 866                                  cur, val) {
 867                 if (count == ARRAY_SIZE(pdata->out_mono))
 868                         break;
 869
 870                 pdata->out_mono[count] = !!val;
 871                 count++;
 872         }
 873
 874         return 0;
 875 }
 876
 877 const struct of_device_id arizona_of_match[] = {
 878         { .compatible = "wlf,wm5102", .data = (void *)WM5102 },
 879         { .compatible = "wlf,wm5110", .data = (void *)WM5110 },
 880         { .compatible = "wlf,wm8280", .data = (void *)WM8280 },
 881         { .compatible = "wlf,wm8997", .data = (void *)WM8997 },
 882         { .compatible = "wlf,wm8998", .data = (void *)WM8998 },
 883         { .compatible = "wlf,wm1814", .data = (void *)WM1814 },
 884         { .compatible = "wlf,wm1831", .data = (void *)WM1831 },
 885         { .compatible = "cirrus,cs47l24", .data = (void *)CS47L24 },
 886         {},
 887 };
 888 EXPORT_SYMBOL_GPL(arizona_of_match);
 889 #else
 890 static inline int arizona_of_get_core_pdata(struct arizona *arizona)
 891 {
 892         return 0;
 893 }
 894 #endif
 895
 896 static const struct mfd_cell early_devs[] = {
 897         { .name = "arizona-ldo1" },
 898 };
 899
 900 static const char * const wm5102_supplies[] = {
 901         "MICVDD",
 902         "DBVDD2",
 903         "DBVDD3",
 904         "CPVDD",
 905         "SPKVDDL",
 906         "SPKVDDR",
 907 };
 908
 909 static const struct mfd_cell wm5102_devs[] = {
 910         { .name = "arizona-micsupp" },
 911         { .name = "arizona-gpio" },
 912         {
 913                 .name = "arizona-extcon",
 914                 .parent_supplies = wm5102_supplies,
 915                 .num_parent_supplies = 1, /* We only need MICVDD */
 916         },
 917         { .name = "arizona-haptics" },
 918         { .name = "arizona-pwm" },
 919         {
 920                 .name = "wm5102-codec",
 921                 .parent_supplies = wm5102_supplies,
 922                 .num_parent_supplies = ARRAY_SIZE(wm5102_supplies),
 923         },
 924 };
 925
 926 static const struct mfd_cell wm5110_devs[] = {
 927         { .name = "arizona-micsupp" },
 928         { .name = "arizona-gpio" },
 929         {
 930                 .name = "arizona-extcon",
 931                 .parent_supplies = wm5102_supplies,
 932                 .num_parent_supplies = 1, /* We only need MICVDD */
 933         },
 934         { .name = "arizona-haptics" },
 935         { .name = "arizona-pwm" },
 936         {
 937                 .name = "wm5110-codec",
 938                 .parent_supplies = wm5102_supplies,
 939                 .num_parent_supplies = ARRAY_SIZE(wm5102_supplies),
 940         },
 941 };
 942
 943 static const char * const cs47l24_supplies[] = {
 944         "MICVDD",
 945         "CPVDD",
 946         "SPKVDD",
 947 };
 948
 949 static const struct mfd_cell cs47l24_devs[] = {
 950         { .name = "arizona-gpio" },
 951         { .name = "arizona-haptics" },
 952         { .name = "arizona-pwm" },
 953         {
 954                 .name = "cs47l24-codec",
 955                 .parent_supplies = cs47l24_supplies,
 956                 .num_parent_supplies = ARRAY_SIZE(cs47l24_supplies),
 957         },
 958 };
 959
 960 static const char * const wm8997_supplies[] = {
 961         "MICVDD",
 962         "DBVDD2",
 963         "CPVDD",
 964         "SPKVDD",
 965 };
 966
 967 static const struct mfd_cell wm8997_devs[] = {
 968         { .name = "arizona-micsupp" },
 969         { .name = "arizona-gpio" },
 970         {
 971                 .name = "arizona-extcon",
 972                 .parent_supplies = wm8997_supplies,
 973                 .num_parent_supplies = 1, /* We only need MICVDD */
 974         },
 975         { .name = "arizona-haptics" },
 976         { .name = "arizona-pwm" },
 977         {
 978                 .name = "wm8997-codec",
 979                 .parent_supplies = wm8997_supplies,
 980                 .num_parent_supplies = ARRAY_SIZE(wm8997_supplies),
 981         },
 982 };
 983
 984 static const struct mfd_cell wm8998_devs[] = {
 985         { .name = "arizona-micsupp" },
 986         { .name = "arizona-gpio" },
 987         {
 988                 .name = "arizona-extcon",
 989                 .parent_supplies = wm5102_supplies,
 990                 .num_parent_supplies = 1, /* We only need MICVDD */
 991         },
 992         { .name = "arizona-haptics" },
 993         { .name = "arizona-pwm" },
 994         {
 995                 .name = "wm8998-codec",
 996                 .parent_supplies = wm5102_supplies,
 997                 .num_parent_supplies = ARRAY_SIZE(wm5102_supplies),
 998         },
 999 };
1000
1001 int arizona_dev_init(struct arizona *arizona)
1002 {
1003         struct device *dev = arizona->dev;
1004         const char *type_name = NULL;
1005         unsigned int reg, val, mask;
1006         int (*apply_patch)(struct arizona *) = NULL;
1007         const struct mfd_cell *subdevs = NULL;
1008         int n_subdevs, ret, i;
1009
1010         dev_set_drvdata(arizona->dev, arizona);
1011         mutex_init(&arizona->clk_lock);
1012
1013         if (dev_get_platdata(arizona->dev))
1014                 memcpy(&arizona->pdata, dev_get_platdata(arizona->dev),
1015                        sizeof(arizona->pdata));
1016         else
1017                 arizona_of_get_core_pdata(arizona);
1018
1019         regcache_cache_only(arizona->regmap, true);
1020
1021         switch (arizona->type) {
1022         case WM5102:
1023         case WM5110:
1024         case WM8280:
1025         case WM8997:
1026         case WM8998:
1027         case WM1814:
1028         case WM1831:
1029         case CS47L24:
1030                 for (i = 0; i < ARRAY_SIZE(wm5102_core_supplies); i++)
1031                         arizona->core_supplies[i].supply
1032                                 = wm5102_core_supplies[i];
1033                 arizona->num_core_supplies = ARRAY_SIZE(wm5102_core_supplies);
1034                 break;
1035         default:
1036                 dev_err(arizona->dev, "Unknown device type %d\n",
1037                         arizona->type);
1038                 return -EINVAL;
1039         }
1040
1041         /* Mark DCVDD as external, LDO1 driver will clear if internal */
1042         arizona->external_dcvdd = true;
1043
1044         switch (arizona->type) {
1045         case WM1831:
1046         case CS47L24:
1047                 break; /* No LDO1 regulator */
1048         default:
1049                 ret = mfd_add_devices(arizona->dev, -1, early_devs,
1050                                       ARRAY_SIZE(early_devs), NULL, 0, NULL);
1051                 if (ret != 0) {
1052                         dev_err(dev, "Failed to add early children: %d\n", ret);
1053                         return ret;
1054                 }
1055                 break;
1056         }
1057
1058         ret = devm_regulator_bulk_get(dev, arizona->num_core_supplies,
1059                                       arizona->core_supplies);
1060         if (ret != 0) {
1061                 dev_err(dev, "Failed to request core supplies: %d\n",
1062                         ret);
1063                 goto err_early;
1064         }
1065
1066         /**
1067          * Don't use devres here because the only device we have to get
1068          * against is the MFD device and DCVDD will likely be supplied by
1069          * one of its children. Meaning that the regulator will be
1070          * destroyed by the time devres calls regulator put.
1071          */
1072         arizona->dcvdd = regulator_get(arizona->dev, "DCVDD");
1073         if (IS_ERR(arizona->dcvdd)) {
1074                 ret = PTR_ERR(arizona->dcvdd);
1075                 dev_err(dev, "Failed to request DCVDD: %d\n", ret);
1076                 goto err_early;
1077         }
1078
1079         if (arizona->pdata.reset) {
1080                 /* Start out with /RESET low to put the chip into reset */
1081                 ret = devm_gpio_request_one(arizona->dev, arizona->pdata.reset,
1082                                             GPIOF_DIR_OUT | GPIOF_INIT_LOW,
1083                                             "arizona /RESET");
1084                 if (ret != 0) {
1085                         dev_err(dev, "Failed to request /RESET: %d\n", ret);
1086                         goto err_dcvdd;
1087                 }
1088         }
1089
1090         ret = regulator_bulk_enable(arizona->num_core_supplies,
1091                                     arizona->core_supplies);
1092         if (ret != 0) {
1093                 dev_err(dev, "Failed to enable core supplies: %d\n",
1094                         ret);
1095                 goto err_dcvdd;
1096         }
1097
1098         ret = regulator_enable(arizona->dcvdd);
1099         if (ret != 0) {
1100                 dev_err(dev, "Failed to enable DCVDD: %d\n", ret);
1101                 goto err_enable;
1102         }
1103
1104         arizona_disable_reset(arizona);
1105
1106         regcache_cache_only(arizona->regmap, false);
1107
1108         /* Verify that this is a chip we know about */
1109         ret = regmap_read(arizona->regmap, ARIZONA_SOFTWARE_RESET, &reg);
1110         if (ret != 0) {
1111                 dev_err(dev, "Failed to read ID register: %d\n", ret);
1112                 goto err_reset;
1113         }
1114
1115         switch (reg) {
1116         case 0x5102:
1117         case 0x5110:
1118         case 0x6349:
1119         case 0x6363:
1120         case 0x8997:
1121                 break;
1122         default:
1123                 dev_err(arizona->dev, "Unknown device ID: %x\n", reg);
1124                 goto err_reset;
1125         }
1126
1127         /* If we have a /RESET GPIO we'll already be reset */
1128         if (!arizona->pdata.reset) {
1129                 ret = regmap_write(arizona->regmap, ARIZONA_SOFTWARE_RESET, 0);
1130                 if (ret != 0) {
1131                         dev_err(dev, "Failed to reset device: %d\n", ret);
1132                         goto err_reset;
1133                 }
1134
1135                 usleep_range(1000, 5000);
1136         }
1137
1138         /* Ensure device startup is complete */
1139         switch (arizona->type) {
1140         case WM5102:
1141                 ret = regmap_read(arizona->regmap,
1142                                   ARIZONA_WRITE_SEQUENCER_CTRL_3, &val);
1143                 if (ret) {
1144                         dev_err(dev,
1145                                 "Failed to check write sequencer state: %d\n",
1146                                 ret);
1147                 } else if (val & 0x01) {
1148                         ret = wm5102_clear_write_sequencer(arizona);
1149                         if (ret)
1150                                 return ret;
1151                 }
1152                 break;
1153         default:
1154                 break;
1155         }
1156
1157         ret = arizona_wait_for_boot(arizona);
1158         if (ret) {
1159                 dev_err(arizona->dev, "Device failed initial boot: %d\n", ret);
1160                 goto err_reset;
1161         }
1162
1163         /* Read the device ID information & do device specific stuff */
1164         ret = regmap_read(arizona->regmap, ARIZONA_SOFTWARE_RESET, &reg);
1165         if (ret != 0) {
1166                 dev_err(dev, "Failed to read ID register: %d\n", ret);
1167                 goto err_reset;
1168         }
1169
1170         ret = regmap_read(arizona->regmap, ARIZONA_DEVICE_REVISION,
1171                           &arizona->rev);
1172         if (ret != 0) {
1173                 dev_err(dev, "Failed to read revision register: %d\n", ret);
1174                 goto err_reset;
1175         }
1176         arizona->rev &= ARIZONA_DEVICE_REVISION_MASK;
1177
1178         switch (reg) {
1179         case 0x5102:
1180                 if (IS_ENABLED(CONFIG_MFD_WM5102)) {
1181                         type_name = "WM5102";
1182                         if (arizona->type != WM5102) {
1183                                 dev_warn(arizona->dev,
1184                                          "WM5102 registered as %d\n",
1185                                          arizona->type);
1186                                 arizona->type = WM5102;
1187                         }
1188
1189                         apply_patch = wm5102_patch;
1190                         arizona->rev &= 0x7;
1191                         subdevs = wm5102_devs;
1192                         n_subdevs = ARRAY_SIZE(wm5102_devs);
1193                 }
1194                 break;
1195         case 0x5110:
1196                 if (IS_ENABLED(CONFIG_MFD_WM5110)) {
1197                         switch (arizona->type) {
1198                         case WM5110:
1199                                 type_name = "WM5110";
1200                                 break;
1201                         case WM8280:
1202                                 type_name = "WM8280";
1203                                 break;
1204                         default:
1205                                 type_name = "WM5110";
1206                                 dev_warn(arizona->dev,
1207                                          "WM5110 registered as %d\n",
1208                                          arizona->type);
1209                                 arizona->type = WM5110;
1210                                 break;
1211                         }
1212
1213                         apply_patch = wm5110_patch;
1214                         subdevs = wm5110_devs;
1215                         n_subdevs = ARRAY_SIZE(wm5110_devs);
1216                 }
1217                 break;
1218         case 0x6363:
1219                 if (IS_ENABLED(CONFIG_MFD_CS47L24)) {
1220                         switch (arizona->type) {
1221                         case CS47L24:
1222                                 type_name = "CS47L24";
1223                                 break;
1224
1225                         case WM1831:
1226                                 type_name = "WM1831";
1227                                 break;
1228
1229                         default:
1230                                 dev_warn(arizona->dev,
1231                                          "CS47L24 registered as %d\n",
1232                                          arizona->type);
1233                                 arizona->type = CS47L24;
1234                                 break;
1235                         }
1236
1237                         apply_patch = cs47l24_patch;
1238                         subdevs = cs47l24_devs;
1239                         n_subdevs = ARRAY_SIZE(cs47l24_devs);
1240                 }
1241                 break;
1242         case 0x8997:
1243                 if (IS_ENABLED(CONFIG_MFD_WM8997)) {
1244                         type_name = "WM8997";
1245                         if (arizona->type != WM8997) {
1246                                 dev_warn(arizona->dev,
1247                                          "WM8997 registered as %d\n",
1248                                          arizona->type);
1249                                 arizona->type = WM8997;
1250                         }
1251
1252                         apply_patch = wm8997_patch;
1253                         subdevs = wm8997_devs;
1254                         n_subdevs = ARRAY_SIZE(wm8997_devs);
1255                 }
1256                 break;
1257         case 0x6349:
1258                 if (IS_ENABLED(CONFIG_MFD_WM8998)) {
1259                         switch (arizona->type) {
1260                         case WM8998:
1261                                 type_name = "WM8998";
1262                                 break;
1263
1264                         case WM1814:
1265                                 type_name = "WM1814";
1266                                 break;
1267
1268                         default:
1269                                 type_name = "WM8998";
1270                                 dev_warn(arizona->dev,
1271                                          "WM8998 registered as %d\n",
1272                                          arizona->type);
1273                                 arizona->type = WM8998;
1274                         }
1275
1276                         apply_patch = wm8998_patch;
1277                         subdevs = wm8998_devs;
1278                         n_subdevs = ARRAY_SIZE(wm8998_devs);
1279                 }
1280                 break;
1281         default:
1282                 dev_err(arizona->dev, "Unknown device ID %x\n", reg);
1283                 goto err_reset;
1284         }
1285
1286         if (!subdevs) {
1287                 dev_err(arizona->dev,
1288                         "No kernel support for device ID %x\n", reg);
1289                 goto err_reset;
1290         }
1291
1292         dev_info(dev, "%s revision %c\n", type_name, arizona->rev + 'A');
1293
1294         if (apply_patch) {
1295                 ret = apply_patch(arizona);
1296                 if (ret != 0) {
1297                         dev_err(arizona->dev, "Failed to apply patch: %d\n",
1298                                 ret);
1299                         goto err_reset;
1300                 }
1301
1302                 switch (arizona->type) {
1303                 case WM5102:
1304                         ret = wm5102_apply_hardware_patch(arizona);
1305                         if (ret) {
1306                                 dev_err(arizona->dev,
1307                                         "Failed to apply hardware patch: %d\n",
1308                                         ret);
1309                                 goto err_reset;
1310                         }
1311                         break;
1312                 case WM5110:
1313                 case WM8280:
1314                         ret = wm5110_apply_sleep_patch(arizona);
1315                         if (ret) {
1316                                 dev_err(arizona->dev,
1317                                         "Failed to apply sleep patch: %d\n",
1318                                         ret);
1319                                 goto err_reset;
1320                         }
1321                         break;
1322                 default:
1323                         break;
1324                 }
1325         }
1326
1327         for (i = 0; i < ARRAY_SIZE(arizona->pdata.gpio_defaults); i++) {
1328                 if (!arizona->pdata.gpio_defaults[i])
1329                         continue;
1330
1331                 regmap_write(arizona->regmap, ARIZONA_GPIO1_CTRL + i,
1332                              arizona->pdata.gpio_defaults[i]);
1333         }
1334
1335         /* Chip default */
1336         if (!arizona->pdata.clk32k_src)
1337                 arizona->pdata.clk32k_src = ARIZONA_32KZ_MCLK2;
1338
1339         switch (arizona->pdata.clk32k_src) {
1340         case ARIZONA_32KZ_MCLK1:
1341         case ARIZONA_32KZ_MCLK2:
1342                 regmap_update_bits(arizona->regmap, ARIZONA_CLOCK_32K_1,
1343                                    ARIZONA_CLK_32K_SRC_MASK,
1344                                    arizona->pdata.clk32k_src - 1);
1345                 arizona_clk32k_enable(arizona);
1346                 break;
1347         case ARIZONA_32KZ_NONE:
1348                 regmap_update_bits(arizona->regmap, ARIZONA_CLOCK_32K_1,
1349                                    ARIZONA_CLK_32K_SRC_MASK, 2);
1350                 break;
1351         default:
1352                 dev_err(arizona->dev, "Invalid 32kHz clock source: %d\n",
1353                         arizona->pdata.clk32k_src);
1354                 ret = -EINVAL;
1355                 goto err_reset;
1356         }
1357
1358         for (i = 0; i < ARIZONA_MAX_MICBIAS; i++) {
1359                 if (!arizona->pdata.micbias[i].mV &&
1360                     !arizona->pdata.micbias[i].bypass)
1361                         continue;
1362
1363                 /* Apply default for bypass mode */
1364                 if (!arizona->pdata.micbias[i].mV)
1365                         arizona->pdata.micbias[i].mV = 2800;
1366
1367                 val = (arizona->pdata.micbias[i].mV - 1500) / 100;
1368
1369                 val <<= ARIZONA_MICB1_LVL_SHIFT;
1370
1371                 if (arizona->pdata.micbias[i].ext_cap)
1372                         val |= ARIZONA_MICB1_EXT_CAP;
1373
1374                 if (arizona->pdata.micbias[i].discharge)
1375                         val |= ARIZONA_MICB1_DISCH;
1376
1377                 if (arizona->pdata.micbias[i].soft_start)
1378                         val |= ARIZONA_MICB1_RATE;
1379
1380                 if (arizona->pdata.micbias[i].bypass)
1381                         val |= ARIZONA_MICB1_BYPASS;
1382
1383                 regmap_update_bits(arizona->regmap,
1384                                    ARIZONA_MIC_BIAS_CTRL_1 + i,
1385                                    ARIZONA_MICB1_LVL_MASK |
1386                                    ARIZONA_MICB1_EXT_CAP |
1387                                    ARIZONA_MICB1_DISCH |
1388                                    ARIZONA_MICB1_BYPASS |
1389                                    ARIZONA_MICB1_RATE, val);
1390         }
1391
1392         for (i = 0; i < ARIZONA_MAX_INPUT; i++) {
1393                 /* Default for both is 0 so noop with defaults */
1394                 val = arizona->pdata.dmic_ref[i]
1395                         << ARIZONA_IN1_DMIC_SUP_SHIFT;
1396                 if (arizona->pdata.inmode[i] & ARIZONA_INMODE_DMIC)
1397                         val |= 1 << ARIZONA_IN1_MODE_SHIFT;
1398
1399                 switch (arizona->type) {
1400                 case WM8998:
1401                 case WM1814:
1402                         regmap_update_bits(arizona->regmap,
1403                                 ARIZONA_ADC_DIGITAL_VOLUME_1L + (i * 8),
1404                                 ARIZONA_IN1L_SRC_SE_MASK,
1405                                 (arizona->pdata.inmode[i] & ARIZONA_INMODE_SE)
1406                                         << ARIZONA_IN1L_SRC_SE_SHIFT);
1407
1408                         regmap_update_bits(arizona->regmap,
1409                                 ARIZONA_ADC_DIGITAL_VOLUME_1R + (i * 8),
1410                                 ARIZONA_IN1R_SRC_SE_MASK,
1411                                 (arizona->pdata.inmode[i] & ARIZONA_INMODE_SE)
1412                                         << ARIZONA_IN1R_SRC_SE_SHIFT);
1413
1414                         mask = ARIZONA_IN1_DMIC_SUP_MASK |
1415                                 ARIZONA_IN1_MODE_MASK;
1416                         break;
1417                 default:
1418                         if (arizona->pdata.inmode[i] & ARIZONA_INMODE_SE)
1419                                 val |= 1 << ARIZONA_IN1_SINGLE_ENDED_SHIFT;
1420
1421                         mask = ARIZONA_IN1_DMIC_SUP_MASK |
1422                                 ARIZONA_IN1_MODE_MASK |
1423                                 ARIZONA_IN1_SINGLE_ENDED_MASK;
1424                         break;
1425                 }
1426
1427                 regmap_update_bits(arizona->regmap,
1428                                    ARIZONA_IN1L_CONTROL + (i * 8),
1429                                    mask, val);
1430         }
1431
1432         for (i = 0; i < ARIZONA_MAX_OUTPUT; i++) {
1433                 /* Default is 0 so noop with defaults */
1434                 if (arizona->pdata.out_mono[i])
1435                         val = ARIZONA_OUT1_MONO;
1436                 else
1437                         val = 0;
1438
1439                 regmap_update_bits(arizona->regmap,
1440                                    ARIZONA_OUTPUT_PATH_CONFIG_1L + (i * 8),
1441                                    ARIZONA_OUT1_MONO, val);
1442         }
1443
1444         for (i = 0; i < ARIZONA_MAX_PDM_SPK; i++) {
1445                 if (arizona->pdata.spk_mute[i])
1446                         regmap_update_bits(arizona->regmap,
1447                                            ARIZONA_PDM_SPK1_CTRL_1 + (i * 2),
1448                                            ARIZONA_SPK1_MUTE_ENDIAN_MASK |
1449                                            ARIZONA_SPK1_MUTE_SEQ1_MASK,
1450                                            arizona->pdata.spk_mute[i]);
1451
1452                 if (arizona->pdata.spk_fmt[i])
1453                         regmap_update_bits(arizona->regmap,
1454                                            ARIZONA_PDM_SPK1_CTRL_2 + (i * 2),
1455                                            ARIZONA_SPK1_FMT_MASK,
1456                                            arizona->pdata.spk_fmt[i]);
1457         }
1458
1459         pm_runtime_set_active(arizona->dev);
1460         pm_runtime_enable(arizona->dev);
1461
1462         /* Set up for interrupts */
1463         ret = arizona_irq_init(arizona);
1464         if (ret != 0)
1465                 goto err_pm;
1466
1467         pm_runtime_set_autosuspend_delay(arizona->dev, 100);
1468         pm_runtime_use_autosuspend(arizona->dev);
1469
1470         arizona_request_irq(arizona, ARIZONA_IRQ_CLKGEN_ERR, "CLKGEN error",
1471                             arizona_clkgen_err, arizona);
1472         arizona_request_irq(arizona, ARIZONA_IRQ_OVERCLOCKED, "Overclocked",
1473                             arizona_overclocked, arizona);
1474         arizona_request_irq(arizona, ARIZONA_IRQ_UNDERCLOCKED, "Underclocked",
1475                             arizona_underclocked, arizona);
1476
1477         ret = mfd_add_devices(arizona->dev, PLATFORM_DEVID_NONE,
1478                               subdevs, n_subdevs, NULL, 0, NULL);
1479
1480         if (ret) {
1481                 dev_err(arizona->dev, "Failed to add subdevices: %d\n", ret);
1482                 goto err_irq;
1483         }
1484
1485         return 0;
1486
1487 err_irq:
1488         arizona_irq_exit(arizona);
1489 err_pm:
1490         pm_runtime_disable(arizona->dev);
1491 err_reset:
1492         arizona_enable_reset(arizona);
1493         regulator_disable(arizona->dcvdd);
1494 err_enable:
1495         regulator_bulk_disable(arizona->num_core_supplies,
1496                                arizona->core_supplies);
1497 err_dcvdd:
1498         regulator_put(arizona->dcvdd);
1499 err_early:
1500         mfd_remove_devices(dev);
1501         return ret;
1502 }
1503 EXPORT_SYMBOL_GPL(arizona_dev_init);
1504
1505 int arizona_dev_exit(struct arizona *arizona)
1506 {
1507         pm_runtime_disable(arizona->dev);
1508
1509         regulator_disable(arizona->dcvdd);
1510         regulator_put(arizona->dcvdd);
1511
1512         mfd_remove_devices(arizona->dev);
1513         arizona_free_irq(arizona, ARIZONA_IRQ_UNDERCLOCKED, arizona);
1514         arizona_free_irq(arizona, ARIZONA_IRQ_OVERCLOCKED, arizona);
1515         arizona_free_irq(arizona, ARIZONA_IRQ_CLKGEN_ERR, arizona);
1516         arizona_irq_exit(arizona);
1517         arizona_enable_reset(arizona);
1518
1519         regulator_bulk_disable(arizona->num_core_supplies,
1520                                arizona->core_supplies);
1521         return 0;
1522 }
1523 EXPORT_SYMBOL_GPL(arizona_dev_exit);