drivers/mfd/arizona-core.c

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