linux/drivers/mfd/arizona-core.c
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   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.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/of_gpio.h>
  23#include <linux/pm_runtime.h>
  24#include <linux/regmap.h>
  25#include <linux/regulator/consumer.h>
  26#include <linux/regulator/machine.h>
  27#include <linux/slab.h>
  28#include <linux/platform_device.h>
  29
  30#include <linux/mfd/arizona/core.h>
  31#include <linux/mfd/arizona/registers.h>
  32
  33#include "arizona.h"
  34
  35static const char * const wm5102_core_supplies[] = {
  36        "AVDD",
  37        "DBVDD1",
  38};
  39
  40int arizona_clk32k_enable(struct arizona *arizona)
  41{
  42        int ret = 0;
  43
  44        mutex_lock(&arizona->clk_lock);
  45
  46        arizona->clk32k_ref++;
  47
  48        if (arizona->clk32k_ref == 1) {
  49                switch (arizona->pdata.clk32k_src) {
  50                case ARIZONA_32KZ_MCLK1:
  51                        ret = pm_runtime_get_sync(arizona->dev);
  52                        if (ret != 0)
  53                                goto err_ref;
  54                        ret = clk_prepare_enable(arizona->mclk[ARIZONA_MCLK1]);
  55                        if (ret != 0)
  56                                goto err_pm;
  57                        break;
  58                case ARIZONA_32KZ_MCLK2:
  59                        ret = clk_prepare_enable(arizona->mclk[ARIZONA_MCLK2]);
  60                        if (ret != 0)
  61                                goto err_ref;
  62                        break;
  63                }
  64
  65                ret = regmap_update_bits(arizona->regmap, ARIZONA_CLOCK_32K_1,
  66                                         ARIZONA_CLK_32K_ENA,
  67                                         ARIZONA_CLK_32K_ENA);
  68        }
  69
  70err_pm:
  71        pm_runtime_put_sync(arizona->dev);
  72err_ref:
  73        if (ret != 0)
  74                arizona->clk32k_ref--;
  75
  76        mutex_unlock(&arizona->clk_lock);
  77
  78        return ret;
  79}
  80EXPORT_SYMBOL_GPL(arizona_clk32k_enable);
  81
  82int arizona_clk32k_disable(struct arizona *arizona)
  83{
  84        mutex_lock(&arizona->clk_lock);
  85
  86        BUG_ON(arizona->clk32k_ref <= 0);
  87
  88        arizona->clk32k_ref--;
  89
  90        if (arizona->clk32k_ref == 0) {
  91                regmap_update_bits(arizona->regmap, ARIZONA_CLOCK_32K_1,
  92                                   ARIZONA_CLK_32K_ENA, 0);
  93
  94                switch (arizona->pdata.clk32k_src) {
  95                case ARIZONA_32KZ_MCLK1:
  96                        pm_runtime_put_sync(arizona->dev);
  97                        clk_disable_unprepare(arizona->mclk[ARIZONA_MCLK1]);
  98                        break;
  99                case ARIZONA_32KZ_MCLK2:
 100                        clk_disable_unprepare(arizona->mclk[ARIZONA_MCLK2]);
 101                        break;
 102                }
 103        }
 104
 105        mutex_unlock(&arizona->clk_lock);
 106
 107        return 0;
 108}
 109EXPORT_SYMBOL_GPL(arizona_clk32k_disable);
 110
 111static irqreturn_t arizona_clkgen_err(int irq, void *data)
 112{
 113        struct arizona *arizona = data;
 114
 115        dev_err(arizona->dev, "CLKGEN error\n");
 116
 117        return IRQ_HANDLED;
 118}
 119
 120static irqreturn_t arizona_underclocked(int irq, void *data)
 121{
 122        struct arizona *arizona = data;
 123        unsigned int val;
 124        int ret;
 125
 126        ret = regmap_read(arizona->regmap, ARIZONA_INTERRUPT_RAW_STATUS_8,
 127                          &val);
 128        if (ret != 0) {
 129                dev_err(arizona->dev, "Failed to read underclock status: %d\n",
 130                        ret);
 131                return IRQ_NONE;
 132        }
 133
 134        if (val & ARIZONA_AIF3_UNDERCLOCKED_STS)
 135                dev_err(arizona->dev, "AIF3 underclocked\n");
 136        if (val & ARIZONA_AIF2_UNDERCLOCKED_STS)
 137                dev_err(arizona->dev, "AIF2 underclocked\n");
 138        if (val & ARIZONA_AIF1_UNDERCLOCKED_STS)
 139                dev_err(arizona->dev, "AIF1 underclocked\n");
 140        if (val & ARIZONA_ISRC3_UNDERCLOCKED_STS)
 141                dev_err(arizona->dev, "ISRC3 underclocked\n");
 142        if (val & ARIZONA_ISRC2_UNDERCLOCKED_STS)
 143                dev_err(arizona->dev, "ISRC2 underclocked\n");
 144        if (val & ARIZONA_ISRC1_UNDERCLOCKED_STS)
 145                dev_err(arizona->dev, "ISRC1 underclocked\n");
 146        if (val & ARIZONA_FX_UNDERCLOCKED_STS)
 147                dev_err(arizona->dev, "FX underclocked\n");
 148        if (val & ARIZONA_ASRC_UNDERCLOCKED_STS)
 149                dev_err(arizona->dev, "ASRC underclocked\n");
 150        if (val & ARIZONA_DAC_UNDERCLOCKED_STS)
 151                dev_err(arizona->dev, "DAC underclocked\n");
 152        if (val & ARIZONA_ADC_UNDERCLOCKED_STS)
 153                dev_err(arizona->dev, "ADC underclocked\n");
 154        if (val & ARIZONA_MIXER_UNDERCLOCKED_STS)
 155                dev_err(arizona->dev, "Mixer dropped sample\n");
 156
 157        return IRQ_HANDLED;
 158}
 159
 160static irqreturn_t arizona_overclocked(int irq, void *data)
 161{
 162        struct arizona *arizona = data;
 163        unsigned int val[3];
 164        int ret;
 165
 166        ret = regmap_bulk_read(arizona->regmap, ARIZONA_INTERRUPT_RAW_STATUS_6,
 167                               &val[0], 3);
 168        if (ret != 0) {
 169                dev_err(arizona->dev, "Failed to read overclock status: %d\n",
 170                        ret);
 171                return IRQ_NONE;
 172        }
 173
 174        switch (arizona->type) {
 175        case WM8998:
 176        case WM1814:
 177                /* Some bits are shifted on WM8998,
 178                 * rearrange to match the standard bit layout
 179                 */
 180                val[0] = ((val[0] & 0x60e0) >> 1) |
 181                         ((val[0] & 0x1e00) >> 2) |
 182                         (val[0] & 0x000f);
 183                break;
 184        default:
 185                break;
 186        }
 187
 188        if (val[0] & ARIZONA_PWM_OVERCLOCKED_STS)
 189                dev_err(arizona->dev, "PWM overclocked\n");
 190        if (val[0] & ARIZONA_FX_CORE_OVERCLOCKED_STS)
 191                dev_err(arizona->dev, "FX core overclocked\n");
 192        if (val[0] & ARIZONA_DAC_SYS_OVERCLOCKED_STS)
 193                dev_err(arizona->dev, "DAC SYS overclocked\n");
 194        if (val[0] & ARIZONA_DAC_WARP_OVERCLOCKED_STS)
 195                dev_err(arizona->dev, "DAC WARP overclocked\n");
 196        if (val[0] & ARIZONA_ADC_OVERCLOCKED_STS)
 197                dev_err(arizona->dev, "ADC overclocked\n");
 198        if (val[0] & ARIZONA_MIXER_OVERCLOCKED_STS)
 199                dev_err(arizona->dev, "Mixer overclocked\n");
 200        if (val[0] & ARIZONA_AIF3_SYNC_OVERCLOCKED_STS)
 201                dev_err(arizona->dev, "AIF3 overclocked\n");
 202        if (val[0] & ARIZONA_AIF2_SYNC_OVERCLOCKED_STS)
 203                dev_err(arizona->dev, "AIF2 overclocked\n");
 204        if (val[0] & ARIZONA_AIF1_SYNC_OVERCLOCKED_STS)
 205                dev_err(arizona->dev, "AIF1 overclocked\n");
 206        if (val[0] & ARIZONA_PAD_CTRL_OVERCLOCKED_STS)
 207                dev_err(arizona->dev, "Pad control overclocked\n");
 208
 209        if (val[1] & ARIZONA_SLIMBUS_SUBSYS_OVERCLOCKED_STS)
 210                dev_err(arizona->dev, "Slimbus subsystem overclocked\n");
 211        if (val[1] & ARIZONA_SLIMBUS_ASYNC_OVERCLOCKED_STS)
 212                dev_err(arizona->dev, "Slimbus async overclocked\n");
 213        if (val[1] & ARIZONA_SLIMBUS_SYNC_OVERCLOCKED_STS)
 214                dev_err(arizona->dev, "Slimbus sync overclocked\n");
 215        if (val[1] & ARIZONA_ASRC_ASYNC_SYS_OVERCLOCKED_STS)
 216                dev_err(arizona->dev, "ASRC async system overclocked\n");
 217        if (val[1] & ARIZONA_ASRC_ASYNC_WARP_OVERCLOCKED_STS)
 218                dev_err(arizona->dev, "ASRC async WARP overclocked\n");
 219        if (val[1] & ARIZONA_ASRC_SYNC_SYS_OVERCLOCKED_STS)
 220                dev_err(arizona->dev, "ASRC sync system overclocked\n");
 221        if (val[1] & ARIZONA_ASRC_SYNC_WARP_OVERCLOCKED_STS)
 222                dev_err(arizona->dev, "ASRC sync WARP overclocked\n");
 223        if (val[1] & ARIZONA_ADSP2_1_OVERCLOCKED_STS)
 224                dev_err(arizona->dev, "DSP1 overclocked\n");
 225        if (val[1] & ARIZONA_ISRC3_OVERCLOCKED_STS)
 226                dev_err(arizona->dev, "ISRC3 overclocked\n");
 227        if (val[1] & ARIZONA_ISRC2_OVERCLOCKED_STS)
 228                dev_err(arizona->dev, "ISRC2 overclocked\n");
 229        if (val[1] & ARIZONA_ISRC1_OVERCLOCKED_STS)
 230                dev_err(arizona->dev, "ISRC1 overclocked\n");
 231
 232        if (val[2] & ARIZONA_SPDIF_OVERCLOCKED_STS)
 233                dev_err(arizona->dev, "SPDIF overclocked\n");
 234
 235        return IRQ_HANDLED;
 236}
 237
 238#define ARIZONA_REG_POLL_DELAY_US 7500
 239
 240static int arizona_poll_reg(struct arizona *arizona,
 241                            int timeout_ms, unsigned int reg,
 242                            unsigned int mask, unsigned int target)
 243{
 244        unsigned int val = 0;
 245        int ret;
 246
 247        ret = regmap_read_poll_timeout(arizona->regmap,
 248                                       reg, val, ((val & mask) == target),
 249                                       ARIZONA_REG_POLL_DELAY_US,
 250                                       timeout_ms * 1000);
 251        if (ret)
 252                dev_err(arizona->dev, "Polling reg 0x%x timed out: %x\n",
 253                        reg, val);
 254
 255        return ret;
 256}
 257
 258static int arizona_wait_for_boot(struct arizona *arizona)
 259{
 260        int ret;
 261
 262        /*
 263         * We can't use an interrupt as we need to runtime resume to do so,
 264         * we won't race with the interrupt handler as it'll be blocked on
 265         * runtime resume.
 266         */
 267        ret = arizona_poll_reg(arizona, 30, ARIZONA_INTERRUPT_RAW_STATUS_5,
 268                               ARIZONA_BOOT_DONE_STS, ARIZONA_BOOT_DONE_STS);
 269
 270        if (!ret)
 271                regmap_write(arizona->regmap, ARIZONA_INTERRUPT_STATUS_5,
 272                             ARIZONA_BOOT_DONE_STS);
 273
 274        pm_runtime_mark_last_busy(arizona->dev);
 275
 276        return ret;
 277}
 278
 279static inline void arizona_enable_reset(struct arizona *arizona)
 280{
 281        if (arizona->pdata.reset)
 282                gpio_set_value_cansleep(arizona->pdata.reset, 0);
 283}
 284
 285static void arizona_disable_reset(struct arizona *arizona)
 286{
 287        if (arizona->pdata.reset) {
 288                switch (arizona->type) {
 289                case WM5110:
 290                case WM8280:
 291                        /* Meet requirements for minimum reset duration */
 292                        usleep_range(5000, 10000);
 293                        break;
 294                default:
 295                        break;
 296                }
 297
 298                gpio_set_value_cansleep(arizona->pdata.reset, 1);
 299                usleep_range(1000, 5000);
 300        }
 301}
 302
 303struct arizona_sysclk_state {
 304        unsigned int fll;
 305        unsigned int sysclk;
 306};
 307
 308static int arizona_enable_freerun_sysclk(struct arizona *arizona,
 309                                         struct arizona_sysclk_state *state)
 310{
 311        int ret, err;
 312
 313        /* Cache existing FLL and SYSCLK settings */
 314        ret = regmap_read(arizona->regmap, ARIZONA_FLL1_CONTROL_1, &state->fll);
 315        if (ret) {
 316                dev_err(arizona->dev, "Failed to cache FLL settings: %d\n",
 317                        ret);
 318                return ret;
 319        }
 320        ret = regmap_read(arizona->regmap, ARIZONA_SYSTEM_CLOCK_1,
 321                          &state->sysclk);
 322        if (ret) {
 323                dev_err(arizona->dev, "Failed to cache SYSCLK settings: %d\n",
 324                        ret);
 325                return ret;
 326        }
 327
 328        /* Start up SYSCLK using the FLL in free running mode */
 329        ret = regmap_write(arizona->regmap, ARIZONA_FLL1_CONTROL_1,
 330                        ARIZONA_FLL1_ENA | ARIZONA_FLL1_FREERUN);
 331        if (ret) {
 332                dev_err(arizona->dev,
 333                        "Failed to start FLL in freerunning mode: %d\n",
 334                        ret);
 335                return ret;
 336        }
 337        ret = arizona_poll_reg(arizona, 180, ARIZONA_INTERRUPT_RAW_STATUS_5,
 338                               ARIZONA_FLL1_CLOCK_OK_STS,
 339                               ARIZONA_FLL1_CLOCK_OK_STS);
 340        if (ret)
 341                goto err_fll;
 342
 343        ret = regmap_write(arizona->regmap, ARIZONA_SYSTEM_CLOCK_1, 0x0144);
 344        if (ret) {
 345                dev_err(arizona->dev, "Failed to start SYSCLK: %d\n", ret);
 346                goto err_fll;
 347        }
 348
 349        return 0;
 350
 351err_fll:
 352        err = regmap_write(arizona->regmap, ARIZONA_FLL1_CONTROL_1, state->fll);
 353        if (err)
 354                dev_err(arizona->dev,
 355                        "Failed to re-apply old FLL settings: %d\n", err);
 356
 357        return ret;
 358}
 359
 360static int arizona_disable_freerun_sysclk(struct arizona *arizona,
 361                                          struct arizona_sysclk_state *state)
 362{
 363        int ret;
 364
 365        ret = regmap_write(arizona->regmap, ARIZONA_SYSTEM_CLOCK_1,
 366                           state->sysclk);
 367        if (ret) {
 368                dev_err(arizona->dev,
 369                        "Failed to re-apply old SYSCLK settings: %d\n", ret);
 370                return ret;
 371        }
 372
 373        ret = regmap_write(arizona->regmap, ARIZONA_FLL1_CONTROL_1, state->fll);
 374        if (ret) {
 375                dev_err(arizona->dev,
 376                        "Failed to re-apply old FLL settings: %d\n", ret);
 377                return ret;
 378        }
 379
 380        return 0;
 381}
 382
 383static int wm5102_apply_hardware_patch(struct arizona *arizona)
 384{
 385        struct arizona_sysclk_state state;
 386        int err, ret;
 387
 388        ret = arizona_enable_freerun_sysclk(arizona, &state);
 389        if (ret)
 390                return ret;
 391
 392        /* Start the write sequencer and wait for it to finish */
 393        ret = regmap_write(arizona->regmap, ARIZONA_WRITE_SEQUENCER_CTRL_0,
 394                           ARIZONA_WSEQ_ENA | ARIZONA_WSEQ_START | 160);
 395        if (ret) {
 396                dev_err(arizona->dev, "Failed to start write sequencer: %d\n",
 397                        ret);
 398                goto err;
 399        }
 400
 401        ret = arizona_poll_reg(arizona, 30, ARIZONA_WRITE_SEQUENCER_CTRL_1,
 402                               ARIZONA_WSEQ_BUSY, 0);
 403        if (ret)
 404                regmap_write(arizona->regmap, ARIZONA_WRITE_SEQUENCER_CTRL_0,
 405                             ARIZONA_WSEQ_ABORT);
 406
 407err:
 408        err = arizona_disable_freerun_sysclk(arizona, &state);
 409
 410        return ret ?: err;
 411}
 412
 413/*
 414 * Register patch to some of the CODECs internal write sequences
 415 * to ensure a clean exit from the low power sleep state.
 416 */
 417static const struct reg_sequence wm5110_sleep_patch[] = {
 418        { 0x337A, 0xC100 },
 419        { 0x337B, 0x0041 },
 420        { 0x3300, 0xA210 },
 421        { 0x3301, 0x050C },
 422};
 423
 424static int wm5110_apply_sleep_patch(struct arizona *arizona)
 425{
 426        struct arizona_sysclk_state state;
 427        int err, ret;
 428
 429        ret = arizona_enable_freerun_sysclk(arizona, &state);
 430        if (ret)
 431                return ret;
 432
 433        ret = regmap_multi_reg_write_bypassed(arizona->regmap,
 434                                              wm5110_sleep_patch,
 435                                              ARRAY_SIZE(wm5110_sleep_patch));
 436
 437        err = arizona_disable_freerun_sysclk(arizona, &state);
 438
 439        return ret ?: err;
 440}
 441
 442static int wm5102_clear_write_sequencer(struct arizona *arizona)
 443{
 444        int ret;
 445
 446        ret = regmap_write(arizona->regmap, ARIZONA_WRITE_SEQUENCER_CTRL_3,
 447                           0x0);
 448        if (ret) {
 449                dev_err(arizona->dev,
 450                        "Failed to clear write sequencer state: %d\n", ret);
 451                return ret;
 452        }
 453
 454        arizona_enable_reset(arizona);
 455        regulator_disable(arizona->dcvdd);
 456
 457        msleep(20);
 458
 459        ret = regulator_enable(arizona->dcvdd);
 460        if (ret) {
 461                dev_err(arizona->dev, "Failed to re-enable DCVDD: %d\n", ret);
 462                return ret;
 463        }
 464        arizona_disable_reset(arizona);
 465
 466        return 0;
 467}
 468
 469#ifdef CONFIG_PM
 470static int arizona_isolate_dcvdd(struct arizona *arizona)
 471{
 472        int ret;
 473
 474        ret = regmap_update_bits(arizona->regmap,
 475                                 ARIZONA_ISOLATION_CONTROL,
 476                                 ARIZONA_ISOLATE_DCVDD1,
 477                                 ARIZONA_ISOLATE_DCVDD1);
 478        if (ret != 0)
 479                dev_err(arizona->dev, "Failed to isolate DCVDD: %d\n", ret);
 480
 481        return ret;
 482}
 483
 484static int arizona_connect_dcvdd(struct arizona *arizona)
 485{
 486        int ret;
 487
 488        ret = regmap_update_bits(arizona->regmap,
 489                                 ARIZONA_ISOLATION_CONTROL,
 490                                 ARIZONA_ISOLATE_DCVDD1, 0);
 491        if (ret != 0)
 492                dev_err(arizona->dev, "Failed to connect DCVDD: %d\n", ret);
 493
 494        return ret;
 495}
 496
 497static int arizona_is_jack_det_active(struct arizona *arizona)
 498{
 499        unsigned int val;
 500        int ret;
 501
 502        ret = regmap_read(arizona->regmap, ARIZONA_JACK_DETECT_ANALOGUE, &val);
 503        if (ret) {
 504                dev_err(arizona->dev,
 505                        "Failed to check jack det status: %d\n", ret);
 506                return ret;
 507        } else if (val & ARIZONA_JD1_ENA) {
 508                return 1;
 509        } else {
 510                return 0;
 511        }
 512}
 513
 514static int arizona_runtime_resume(struct device *dev)
 515{
 516        struct arizona *arizona = dev_get_drvdata(dev);
 517        int ret;
 518
 519        dev_dbg(arizona->dev, "Leaving AoD mode\n");
 520
 521        if (arizona->has_fully_powered_off) {
 522                dev_dbg(arizona->dev, "Re-enabling core supplies\n");
 523
 524                ret = regulator_bulk_enable(arizona->num_core_supplies,
 525                                            arizona->core_supplies);
 526                if (ret) {
 527                        dev_err(dev, "Failed to enable core supplies: %d\n",
 528                                ret);
 529                        return ret;
 530                }
 531        }
 532
 533        ret = regulator_enable(arizona->dcvdd);
 534        if (ret != 0) {
 535                dev_err(arizona->dev, "Failed to enable DCVDD: %d\n", ret);
 536                if (arizona->has_fully_powered_off)
 537                        regulator_bulk_disable(arizona->num_core_supplies,
 538                                               arizona->core_supplies);
 539                return ret;
 540        }
 541
 542        if (arizona->has_fully_powered_off) {
 543                arizona_disable_reset(arizona);
 544                enable_irq(arizona->irq);
 545                arizona->has_fully_powered_off = false;
 546        }
 547
 548        regcache_cache_only(arizona->regmap, false);
 549
 550        switch (arizona->type) {
 551        case WM5102:
 552                if (arizona->external_dcvdd) {
 553                        ret = arizona_connect_dcvdd(arizona);
 554                        if (ret != 0)
 555                                goto err;
 556                }
 557
 558                ret = wm5102_patch(arizona);
 559                if (ret != 0) {
 560                        dev_err(arizona->dev, "Failed to apply patch: %d\n",
 561                                ret);
 562                        goto err;
 563                }
 564
 565                ret = wm5102_apply_hardware_patch(arizona);
 566                if (ret) {
 567                        dev_err(arizona->dev,
 568                                "Failed to apply hardware patch: %d\n",
 569                                ret);
 570                        goto err;
 571                }
 572                break;
 573        case WM5110:
 574        case WM8280:
 575                ret = arizona_wait_for_boot(arizona);
 576                if (ret)
 577                        goto err;
 578
 579                if (arizona->external_dcvdd) {
 580                        ret = arizona_connect_dcvdd(arizona);
 581                        if (ret != 0)
 582                                goto err;
 583                } else {
 584                        /*
 585                         * As this is only called for the internal regulator
 586                         * (where we know voltage ranges available) it is ok
 587                         * to request an exact range.
 588                         */
 589                        ret = regulator_set_voltage(arizona->dcvdd,
 590                                                    1200000, 1200000);
 591                        if (ret < 0) {
 592                                dev_err(arizona->dev,
 593                                        "Failed to set resume voltage: %d\n",
 594                                        ret);
 595                                goto err;
 596                        }
 597                }
 598
 599                ret = wm5110_apply_sleep_patch(arizona);
 600                if (ret) {
 601                        dev_err(arizona->dev,
 602                                "Failed to re-apply sleep patch: %d\n",
 603                                ret);
 604                        goto err;
 605                }
 606                break;
 607        case WM1831:
 608        case CS47L24:
 609                ret = arizona_wait_for_boot(arizona);
 610                if (ret != 0)
 611                        goto err;
 612                break;
 613        default:
 614                ret = arizona_wait_for_boot(arizona);
 615                if (ret != 0)
 616                        goto err;
 617
 618                if (arizona->external_dcvdd) {
 619                        ret = arizona_connect_dcvdd(arizona);
 620                        if (ret != 0)
 621                                goto err;
 622                }
 623                break;
 624        }
 625
 626        ret = regcache_sync(arizona->regmap);
 627        if (ret != 0) {
 628                dev_err(arizona->dev, "Failed to restore register cache\n");
 629                goto err;
 630        }
 631
 632        return 0;
 633
 634err:
 635        regcache_cache_only(arizona->regmap, true);
 636        regulator_disable(arizona->dcvdd);
 637        return ret;
 638}
 639
 640static int arizona_runtime_suspend(struct device *dev)
 641{
 642        struct arizona *arizona = dev_get_drvdata(dev);
 643        int jd_active = 0;
 644        int ret;
 645
 646        dev_dbg(arizona->dev, "Entering AoD mode\n");
 647
 648        switch (arizona->type) {
 649        case WM5110:
 650        case WM8280:
 651                jd_active = arizona_is_jack_det_active(arizona);
 652                if (jd_active < 0)
 653                        return jd_active;
 654
 655                if (arizona->external_dcvdd) {
 656                        ret = arizona_isolate_dcvdd(arizona);
 657                        if (ret != 0)
 658                                return ret;
 659                } else {
 660                        /*
 661                         * As this is only called for the internal regulator
 662                         * (where we know voltage ranges available) it is ok
 663                         * to request an exact range.
 664                         */
 665                        ret = regulator_set_voltage(arizona->dcvdd,
 666                                                    1175000, 1175000);
 667                        if (ret < 0) {
 668                                dev_err(arizona->dev,
 669                                        "Failed to set suspend voltage: %d\n",
 670                                        ret);
 671                                return ret;
 672                        }
 673                }
 674                break;
 675        case WM5102:
 676                jd_active = arizona_is_jack_det_active(arizona);
 677                if (jd_active < 0)
 678                        return jd_active;
 679
 680                if (arizona->external_dcvdd) {
 681                        ret = arizona_isolate_dcvdd(arizona);
 682                        if (ret != 0)
 683                                return ret;
 684                }
 685
 686                if (!jd_active) {
 687                        ret = regmap_write(arizona->regmap,
 688                                           ARIZONA_WRITE_SEQUENCER_CTRL_3, 0x0);
 689                        if (ret) {
 690                                dev_err(arizona->dev,
 691                                        "Failed to clear write sequencer: %d\n",
 692                                        ret);
 693                                return ret;
 694                        }
 695                }
 696                break;
 697        case WM1831:
 698        case CS47L24:
 699                break;
 700        default:
 701                jd_active = arizona_is_jack_det_active(arizona);
 702                if (jd_active < 0)
 703                        return jd_active;
 704
 705                if (arizona->external_dcvdd) {
 706                        ret = arizona_isolate_dcvdd(arizona);
 707                        if (ret != 0)
 708                                return ret;
 709                }
 710                break;
 711        }
 712
 713        regcache_cache_only(arizona->regmap, true);
 714        regcache_mark_dirty(arizona->regmap);
 715        regulator_disable(arizona->dcvdd);
 716
 717        /* Allow us to completely power down if no jack detection */
 718        if (!jd_active) {
 719                dev_dbg(arizona->dev, "Fully powering off\n");
 720
 721                arizona->has_fully_powered_off = true;
 722
 723                disable_irq_nosync(arizona->irq);
 724                arizona_enable_reset(arizona);
 725                regulator_bulk_disable(arizona->num_core_supplies,
 726                                       arizona->core_supplies);
 727        }
 728
 729        return 0;
 730}
 731#endif
 732
 733#ifdef CONFIG_PM_SLEEP
 734static int arizona_suspend(struct device *dev)
 735{
 736        struct arizona *arizona = dev_get_drvdata(dev);
 737
 738        dev_dbg(arizona->dev, "Suspend, disabling IRQ\n");
 739        disable_irq(arizona->irq);
 740
 741        return 0;
 742}
 743
 744static int arizona_suspend_noirq(struct device *dev)
 745{
 746        struct arizona *arizona = dev_get_drvdata(dev);
 747
 748        dev_dbg(arizona->dev, "Late suspend, reenabling IRQ\n");
 749        enable_irq(arizona->irq);
 750
 751        return 0;
 752}
 753
 754static int arizona_resume_noirq(struct device *dev)
 755{
 756        struct arizona *arizona = dev_get_drvdata(dev);
 757
 758        dev_dbg(arizona->dev, "Early resume, disabling IRQ\n");
 759        disable_irq(arizona->irq);
 760
 761        return 0;
 762}
 763
 764static int arizona_resume(struct device *dev)
 765{
 766        struct arizona *arizona = dev_get_drvdata(dev);
 767
 768        dev_dbg(arizona->dev, "Resume, reenabling IRQ\n");
 769        enable_irq(arizona->irq);
 770
 771        return 0;
 772}
 773#endif
 774
 775const struct dev_pm_ops arizona_pm_ops = {
 776        SET_RUNTIME_PM_OPS(arizona_runtime_suspend,
 777                           arizona_runtime_resume,
 778                           NULL)
 779        SET_SYSTEM_SLEEP_PM_OPS(arizona_suspend, arizona_resume)
 780        SET_NOIRQ_SYSTEM_SLEEP_PM_OPS(arizona_suspend_noirq,
 781                                      arizona_resume_noirq)
 782};
 783EXPORT_SYMBOL_GPL(arizona_pm_ops);
 784
 785#ifdef CONFIG_OF
 786unsigned long arizona_of_get_type(struct device *dev)
 787{
 788        const struct of_device_id *id = of_match_device(arizona_of_match, dev);
 789
 790        if (id)
 791                return (unsigned long)id->data;
 792        else
 793                return 0;
 794}
 795EXPORT_SYMBOL_GPL(arizona_of_get_type);
 796
 797static int arizona_of_get_core_pdata(struct arizona *arizona)
 798{
 799        struct arizona_pdata *pdata = &arizona->pdata;
 800        struct property *prop;
 801        const __be32 *cur;
 802        u32 val;
 803        u32 pdm_val[ARIZONA_MAX_PDM_SPK];
 804        int ret, i;
 805        int count = 0;
 806
 807        pdata->reset = of_get_named_gpio(arizona->dev->of_node, "wlf,reset", 0);
 808        if (pdata->reset == -EPROBE_DEFER) {
 809                return pdata->reset;
 810        } else if (pdata->reset < 0) {
 811                dev_err(arizona->dev, "Reset GPIO missing/malformed: %d\n",
 812                        pdata->reset);
 813
 814                pdata->reset = 0;
 815        }
 816
 817        ret = of_property_read_u32_array(arizona->dev->of_node,
 818                                         "wlf,gpio-defaults",
 819                                         pdata->gpio_defaults,
 820                                         ARRAY_SIZE(pdata->gpio_defaults));
 821        if (ret >= 0) {
 822                /*
 823                 * All values are literal except out of range values
 824                 * which are chip default, translate into platform
 825                 * data which uses 0 as chip default and out of range
 826                 * as zero.
 827                 */
 828                for (i = 0; i < ARRAY_SIZE(pdata->gpio_defaults); i++) {
 829                        if (pdata->gpio_defaults[i] > 0xffff)
 830                                pdata->gpio_defaults[i] = 0;
 831                        else if (pdata->gpio_defaults[i] == 0)
 832                                pdata->gpio_defaults[i] = 0x10000;
 833                }
 834        } else {
 835                dev_err(arizona->dev, "Failed to parse GPIO defaults: %d\n",
 836                        ret);
 837        }
 838
 839        of_property_for_each_u32(arizona->dev->of_node, "wlf,inmode", prop,
 840                                 cur, val) {
 841                if (count == ARRAY_SIZE(pdata->inmode))
 842                        break;
 843
 844                pdata->inmode[count] = val;
 845                count++;
 846        }
 847
 848        count = 0;
 849        of_property_for_each_u32(arizona->dev->of_node, "wlf,dmic-ref", prop,
 850                                 cur, val) {
 851                if (count == ARRAY_SIZE(pdata->dmic_ref))
 852                        break;
 853
 854                pdata->dmic_ref[count] = val;
 855                count++;
 856        }
 857
 858        count = 0;
 859        of_property_for_each_u32(arizona->dev->of_node, "wlf,out-mono", prop,
 860                                 cur, val) {
 861                if (count == ARRAY_SIZE(pdata->out_mono))
 862                        break;
 863
 864                pdata->out_mono[count] = !!val;
 865                count++;
 866        }
 867
 868        count = 0;
 869        of_property_for_each_u32(arizona->dev->of_node,
 870                                 "wlf,max-channels-clocked",
 871                                 prop, cur, val) {
 872                if (count == ARRAY_SIZE(pdata->max_channels_clocked))
 873                        break;
 874
 875                pdata->max_channels_clocked[count] = val;
 876                count++;
 877        }
 878
 879        ret = of_property_read_u32_array(arizona->dev->of_node,
 880                                         "wlf,spk-fmt",
 881                                         pdm_val,
 882                                         ARRAY_SIZE(pdm_val));
 883
 884        if (ret >= 0)
 885                for (count = 0; count < ARRAY_SIZE(pdata->spk_fmt); ++count)
 886                        pdata->spk_fmt[count] = pdm_val[count];
 887
 888        ret = of_property_read_u32_array(arizona->dev->of_node,
 889                                         "wlf,spk-mute",
 890                                         pdm_val,
 891                                         ARRAY_SIZE(pdm_val));
 892
 893        if (ret >= 0)
 894                for (count = 0; count < ARRAY_SIZE(pdata->spk_mute); ++count)
 895                        pdata->spk_mute[count] = pdm_val[count];
 896
 897        return 0;
 898}
 899
 900const struct of_device_id arizona_of_match[] = {
 901        { .compatible = "wlf,wm5102", .data = (void *)WM5102 },
 902        { .compatible = "wlf,wm5110", .data = (void *)WM5110 },
 903        { .compatible = "wlf,wm8280", .data = (void *)WM8280 },
 904        { .compatible = "wlf,wm8997", .data = (void *)WM8997 },
 905        { .compatible = "wlf,wm8998", .data = (void *)WM8998 },
 906        { .compatible = "wlf,wm1814", .data = (void *)WM1814 },
 907        { .compatible = "wlf,wm1831", .data = (void *)WM1831 },
 908        { .compatible = "cirrus,cs47l24", .data = (void *)CS47L24 },
 909        {},
 910};
 911EXPORT_SYMBOL_GPL(arizona_of_match);
 912#else
 913static inline int arizona_of_get_core_pdata(struct arizona *arizona)
 914{
 915        return 0;
 916}
 917#endif
 918
 919static const struct mfd_cell early_devs[] = {
 920        { .name = "arizona-ldo1" },
 921};
 922
 923static const char * const wm5102_supplies[] = {
 924        "MICVDD",
 925        "DBVDD2",
 926        "DBVDD3",
 927        "CPVDD",
 928        "SPKVDDL",
 929        "SPKVDDR",
 930};
 931
 932static const struct mfd_cell wm5102_devs[] = {
 933        { .name = "arizona-micsupp" },
 934        { .name = "arizona-gpio" },
 935        {
 936                .name = "arizona-extcon",
 937                .parent_supplies = wm5102_supplies,
 938                .num_parent_supplies = 1, /* We only need MICVDD */
 939        },
 940        { .name = "arizona-haptics" },
 941        { .name = "arizona-pwm" },
 942        {
 943                .name = "wm5102-codec",
 944                .parent_supplies = wm5102_supplies,
 945                .num_parent_supplies = ARRAY_SIZE(wm5102_supplies),
 946        },
 947};
 948
 949static const struct mfd_cell wm5110_devs[] = {
 950        { .name = "arizona-micsupp" },
 951        { .name = "arizona-gpio" },
 952        {
 953                .name = "arizona-extcon",
 954                .parent_supplies = wm5102_supplies,
 955                .num_parent_supplies = 1, /* We only need MICVDD */
 956        },
 957        { .name = "arizona-haptics" },
 958        { .name = "arizona-pwm" },
 959        {
 960                .name = "wm5110-codec",
 961                .parent_supplies = wm5102_supplies,
 962                .num_parent_supplies = ARRAY_SIZE(wm5102_supplies),
 963        },
 964};
 965
 966static const char * const cs47l24_supplies[] = {
 967        "MICVDD",
 968        "CPVDD",
 969        "SPKVDD",
 970};
 971
 972static const struct mfd_cell cs47l24_devs[] = {
 973        { .name = "arizona-gpio" },
 974        { .name = "arizona-haptics" },
 975        { .name = "arizona-pwm" },
 976        {
 977                .name = "cs47l24-codec",
 978                .parent_supplies = cs47l24_supplies,
 979                .num_parent_supplies = ARRAY_SIZE(cs47l24_supplies),
 980        },
 981};
 982
 983static const char * const wm8997_supplies[] = {
 984        "MICVDD",
 985        "DBVDD2",
 986        "CPVDD",
 987        "SPKVDD",
 988};
 989
 990static const struct mfd_cell wm8997_devs[] = {
 991        { .name = "arizona-micsupp" },
 992        { .name = "arizona-gpio" },
 993        {
 994                .name = "arizona-extcon",
 995                .parent_supplies = wm8997_supplies,
 996                .num_parent_supplies = 1, /* We only need MICVDD */
 997        },
 998        { .name = "arizona-haptics" },
 999        { .name = "arizona-pwm" },
1000        {
1001                .name = "wm8997-codec",
1002                .parent_supplies = wm8997_supplies,
1003                .num_parent_supplies = ARRAY_SIZE(wm8997_supplies),
1004        },
1005};
1006
1007static const struct mfd_cell wm8998_devs[] = {
1008        { .name = "arizona-micsupp" },
1009        { .name = "arizona-gpio" },
1010        {
1011                .name = "arizona-extcon",
1012                .parent_supplies = wm5102_supplies,
1013                .num_parent_supplies = 1, /* We only need MICVDD */
1014        },
1015        { .name = "arizona-haptics" },
1016        { .name = "arizona-pwm" },
1017        {
1018                .name = "wm8998-codec",
1019                .parent_supplies = wm5102_supplies,
1020                .num_parent_supplies = ARRAY_SIZE(wm5102_supplies),
1021        },
1022};
1023
1024int arizona_dev_init(struct arizona *arizona)
1025{
1026        const char * const mclk_name[] = { "mclk1", "mclk2" };
1027        struct device *dev = arizona->dev;
1028        const char *type_name = NULL;
1029        unsigned int reg, val, mask;
1030        int (*apply_patch)(struct arizona *) = NULL;
1031        const struct mfd_cell *subdevs = NULL;
1032        int n_subdevs, ret, i;
1033
1034        dev_set_drvdata(arizona->dev, arizona);
1035        mutex_init(&arizona->clk_lock);
1036
1037        if (dev_get_platdata(arizona->dev)) {
1038                memcpy(&arizona->pdata, dev_get_platdata(arizona->dev),
1039                       sizeof(arizona->pdata));
1040        } else {
1041                ret = arizona_of_get_core_pdata(arizona);
1042                if (ret < 0)
1043                        return ret;
1044        }
1045
1046        BUILD_BUG_ON(ARRAY_SIZE(arizona->mclk) != ARRAY_SIZE(mclk_name));
1047        for (i = 0; i < ARRAY_SIZE(arizona->mclk); i++) {
1048                arizona->mclk[i] = devm_clk_get(arizona->dev, mclk_name[i]);
1049                if (IS_ERR(arizona->mclk[i])) {
1050                        dev_info(arizona->dev, "Failed to get %s: %ld\n",
1051                                 mclk_name[i], PTR_ERR(arizona->mclk[i]));
1052                        arizona->mclk[i] = NULL;
1053                }
1054        }
1055
1056        regcache_cache_only(arizona->regmap, true);
1057
1058        switch (arizona->type) {
1059        case WM5102:
1060        case WM5110:
1061        case WM8280:
1062        case WM8997:
1063        case WM8998:
1064        case WM1814:
1065        case WM1831:
1066        case CS47L24:
1067                for (i = 0; i < ARRAY_SIZE(wm5102_core_supplies); i++)
1068                        arizona->core_supplies[i].supply
1069                                = wm5102_core_supplies[i];
1070                arizona->num_core_supplies = ARRAY_SIZE(wm5102_core_supplies);
1071                break;
1072        default:
1073                dev_err(arizona->dev, "Unknown device type %d\n",
1074                        arizona->type);
1075                return -ENODEV;
1076        }
1077
1078        /* Mark DCVDD as external, LDO1 driver will clear if internal */
1079        arizona->external_dcvdd = true;
1080
1081        switch (arizona->type) {
1082        case WM1831:
1083        case CS47L24:
1084                break; /* No LDO1 regulator */
1085        default:
1086                ret = mfd_add_devices(arizona->dev, -1, early_devs,
1087                                      ARRAY_SIZE(early_devs), NULL, 0, NULL);
1088                if (ret != 0) {
1089                        dev_err(dev, "Failed to add early children: %d\n", ret);
1090                        return ret;
1091                }
1092                break;
1093        }
1094
1095        ret = devm_regulator_bulk_get(dev, arizona->num_core_supplies,
1096                                      arizona->core_supplies);
1097        if (ret != 0) {
1098                dev_err(dev, "Failed to request core supplies: %d\n",
1099                        ret);
1100                goto err_early;
1101        }
1102
1103        /**
1104         * Don't use devres here because the only device we have to get
1105         * against is the MFD device and DCVDD will likely be supplied by
1106         * one of its children. Meaning that the regulator will be
1107         * destroyed by the time devres calls regulator put.
1108         */
1109        arizona->dcvdd = regulator_get(arizona->dev, "DCVDD");
1110        if (IS_ERR(arizona->dcvdd)) {
1111                ret = PTR_ERR(arizona->dcvdd);
1112                dev_err(dev, "Failed to request DCVDD: %d\n", ret);
1113                goto err_early;
1114        }
1115
1116        if (arizona->pdata.reset) {
1117                /* Start out with /RESET low to put the chip into reset */
1118                ret = devm_gpio_request_one(arizona->dev, arizona->pdata.reset,
1119                                            GPIOF_DIR_OUT | GPIOF_INIT_LOW,
1120                                            "arizona /RESET");
1121                if (ret != 0) {
1122                        dev_err(dev, "Failed to request /RESET: %d\n", ret);
1123                        goto err_dcvdd;
1124                }
1125        }
1126
1127        ret = regulator_bulk_enable(arizona->num_core_supplies,
1128                                    arizona->core_supplies);
1129        if (ret != 0) {
1130                dev_err(dev, "Failed to enable core supplies: %d\n",
1131                        ret);
1132                goto err_dcvdd;
1133        }
1134
1135        ret = regulator_enable(arizona->dcvdd);
1136        if (ret != 0) {
1137                dev_err(dev, "Failed to enable DCVDD: %d\n", ret);
1138                goto err_enable;
1139        }
1140
1141        arizona_disable_reset(arizona);
1142
1143        regcache_cache_only(arizona->regmap, false);
1144
1145        /* Verify that this is a chip we know about */
1146        ret = regmap_read(arizona->regmap, ARIZONA_SOFTWARE_RESET, &reg);
1147        if (ret != 0) {
1148                dev_err(dev, "Failed to read ID register: %d\n", ret);
1149                goto err_reset;
1150        }
1151
1152        switch (reg) {
1153        case 0x5102:
1154        case 0x5110:
1155        case 0x6349:
1156        case 0x6363:
1157        case 0x8997:
1158                break;
1159        default:
1160                dev_err(arizona->dev, "Unknown device ID: %x\n", reg);
1161                ret = -ENODEV;
1162                goto err_reset;
1163        }
1164
1165        /* If we have a /RESET GPIO we'll already be reset */
1166        if (!arizona->pdata.reset) {
1167                ret = regmap_write(arizona->regmap, ARIZONA_SOFTWARE_RESET, 0);
1168                if (ret != 0) {
1169                        dev_err(dev, "Failed to reset device: %d\n", ret);
1170                        goto err_reset;
1171                }
1172
1173                usleep_range(1000, 5000);
1174        }
1175
1176        /* Ensure device startup is complete */
1177        switch (arizona->type) {
1178        case WM5102:
1179                ret = regmap_read(arizona->regmap,
1180                                  ARIZONA_WRITE_SEQUENCER_CTRL_3, &val);
1181                if (ret) {
1182                        dev_err(dev,
1183                                "Failed to check write sequencer state: %d\n",
1184                                ret);
1185                } else if (val & 0x01) {
1186                        ret = wm5102_clear_write_sequencer(arizona);
1187                        if (ret)
1188                                return ret;
1189                }
1190                break;
1191        default:
1192                break;
1193        }
1194
1195        ret = arizona_wait_for_boot(arizona);
1196        if (ret) {
1197                dev_err(arizona->dev, "Device failed initial boot: %d\n", ret);
1198                goto err_reset;
1199        }
1200
1201        /* Read the device ID information & do device specific stuff */
1202        ret = regmap_read(arizona->regmap, ARIZONA_SOFTWARE_RESET, &reg);
1203        if (ret != 0) {
1204                dev_err(dev, "Failed to read ID register: %d\n", ret);
1205                goto err_reset;
1206        }
1207
1208        ret = regmap_read(arizona->regmap, ARIZONA_DEVICE_REVISION,
1209                          &arizona->rev);
1210        if (ret != 0) {
1211                dev_err(dev, "Failed to read revision register: %d\n", ret);
1212                goto err_reset;
1213        }
1214        arizona->rev &= ARIZONA_DEVICE_REVISION_MASK;
1215
1216        switch (reg) {
1217        case 0x5102:
1218                if (IS_ENABLED(CONFIG_MFD_WM5102)) {
1219                        type_name = "WM5102";
1220                        if (arizona->type != WM5102) {
1221                                dev_warn(arizona->dev,
1222                                         "WM5102 registered as %d\n",
1223                                         arizona->type);
1224                                arizona->type = WM5102;
1225                        }
1226
1227                        apply_patch = wm5102_patch;
1228                        arizona->rev &= 0x7;
1229                        subdevs = wm5102_devs;
1230                        n_subdevs = ARRAY_SIZE(wm5102_devs);
1231                }
1232                break;
1233        case 0x5110:
1234                if (IS_ENABLED(CONFIG_MFD_WM5110)) {
1235                        switch (arizona->type) {
1236                        case WM5110:
1237                                type_name = "WM5110";
1238                                break;
1239                        case WM8280:
1240                                type_name = "WM8280";
1241                                break;
1242                        default:
1243                                type_name = "WM5110";
1244                                dev_warn(arizona->dev,
1245                                         "WM5110 registered as %d\n",
1246                                         arizona->type);
1247                                arizona->type = WM5110;
1248                                break;
1249                        }
1250
1251                        apply_patch = wm5110_patch;
1252                        subdevs = wm5110_devs;
1253                        n_subdevs = ARRAY_SIZE(wm5110_devs);
1254                }
1255                break;
1256        case 0x6363:
1257                if (IS_ENABLED(CONFIG_MFD_CS47L24)) {
1258                        switch (arizona->type) {
1259                        case CS47L24:
1260                                type_name = "CS47L24";
1261                                break;
1262
1263                        case WM1831:
1264                                type_name = "WM1831";
1265                                break;
1266
1267                        default:
1268                                dev_warn(arizona->dev,
1269                                         "CS47L24 registered as %d\n",
1270                                         arizona->type);
1271                                arizona->type = CS47L24;
1272                                break;
1273                        }
1274
1275                        apply_patch = cs47l24_patch;
1276                        subdevs = cs47l24_devs;
1277                        n_subdevs = ARRAY_SIZE(cs47l24_devs);
1278                }
1279                break;
1280        case 0x8997:
1281                if (IS_ENABLED(CONFIG_MFD_WM8997)) {
1282                        type_name = "WM8997";
1283                        if (arizona->type != WM8997) {
1284                                dev_warn(arizona->dev,
1285                                         "WM8997 registered as %d\n",
1286                                         arizona->type);
1287                                arizona->type = WM8997;
1288                        }
1289
1290                        apply_patch = wm8997_patch;
1291                        subdevs = wm8997_devs;
1292                        n_subdevs = ARRAY_SIZE(wm8997_devs);
1293                }
1294                break;
1295        case 0x6349:
1296                if (IS_ENABLED(CONFIG_MFD_WM8998)) {
1297                        switch (arizona->type) {
1298                        case WM8998:
1299                                type_name = "WM8998";
1300                                break;
1301
1302                        case WM1814:
1303                                type_name = "WM1814";
1304                                break;
1305
1306                        default:
1307                                type_name = "WM8998";
1308                                dev_warn(arizona->dev,
1309                                         "WM8998 registered as %d\n",
1310                                         arizona->type);
1311                                arizona->type = WM8998;
1312                        }
1313
1314                        apply_patch = wm8998_patch;
1315                        subdevs = wm8998_devs;
1316                        n_subdevs = ARRAY_SIZE(wm8998_devs);
1317                }
1318                break;
1319        default:
1320                dev_err(arizona->dev, "Unknown device ID %x\n", reg);
1321                ret = -ENODEV;
1322                goto err_reset;
1323        }
1324
1325        if (!subdevs) {
1326                dev_err(arizona->dev,
1327                        "No kernel support for device ID %x\n", reg);
1328                ret = -ENODEV;
1329                goto err_reset;
1330        }
1331
1332        dev_info(dev, "%s revision %c\n", type_name, arizona->rev + 'A');
1333
1334        if (apply_patch) {
1335                ret = apply_patch(arizona);
1336                if (ret != 0) {
1337                        dev_err(arizona->dev, "Failed to apply patch: %d\n",
1338                                ret);
1339                        goto err_reset;
1340                }
1341
1342                switch (arizona->type) {
1343                case WM5102:
1344                        ret = wm5102_apply_hardware_patch(arizona);
1345                        if (ret) {
1346                                dev_err(arizona->dev,
1347                                        "Failed to apply hardware patch: %d\n",
1348                                        ret);
1349                                goto err_reset;
1350                        }
1351                        break;
1352                case WM5110:
1353                case WM8280:
1354                        ret = wm5110_apply_sleep_patch(arizona);
1355                        if (ret) {
1356                                dev_err(arizona->dev,
1357                                        "Failed to apply sleep patch: %d\n",
1358                                        ret);
1359                                goto err_reset;
1360                        }
1361                        break;
1362                default:
1363                        break;
1364                }
1365        }
1366
1367        for (i = 0; i < ARRAY_SIZE(arizona->pdata.gpio_defaults); i++) {
1368                if (!arizona->pdata.gpio_defaults[i])
1369                        continue;
1370
1371                regmap_write(arizona->regmap, ARIZONA_GPIO1_CTRL + i,
1372                             arizona->pdata.gpio_defaults[i]);
1373        }
1374
1375        /* Chip default */
1376        if (!arizona->pdata.clk32k_src)
1377                arizona->pdata.clk32k_src = ARIZONA_32KZ_MCLK2;
1378
1379        switch (arizona->pdata.clk32k_src) {
1380        case ARIZONA_32KZ_MCLK1:
1381        case ARIZONA_32KZ_MCLK2:
1382                regmap_update_bits(arizona->regmap, ARIZONA_CLOCK_32K_1,
1383                                   ARIZONA_CLK_32K_SRC_MASK,
1384                                   arizona->pdata.clk32k_src - 1);
1385                arizona_clk32k_enable(arizona);
1386                break;
1387        case ARIZONA_32KZ_NONE:
1388                regmap_update_bits(arizona->regmap, ARIZONA_CLOCK_32K_1,
1389                                   ARIZONA_CLK_32K_SRC_MASK, 2);
1390                break;
1391        default:
1392                dev_err(arizona->dev, "Invalid 32kHz clock source: %d\n",
1393                        arizona->pdata.clk32k_src);
1394                ret = -EINVAL;
1395                goto err_reset;
1396        }
1397
1398        for (i = 0; i < ARIZONA_MAX_MICBIAS; i++) {
1399                if (!arizona->pdata.micbias[i].mV &&
1400                    !arizona->pdata.micbias[i].bypass)
1401                        continue;
1402
1403                /* Apply default for bypass mode */
1404                if (!arizona->pdata.micbias[i].mV)
1405                        arizona->pdata.micbias[i].mV = 2800;
1406
1407                val = (arizona->pdata.micbias[i].mV - 1500) / 100;
1408
1409                val <<= ARIZONA_MICB1_LVL_SHIFT;
1410
1411                if (arizona->pdata.micbias[i].ext_cap)
1412                        val |= ARIZONA_MICB1_EXT_CAP;
1413
1414                if (arizona->pdata.micbias[i].discharge)
1415                        val |= ARIZONA_MICB1_DISCH;
1416
1417                if (arizona->pdata.micbias[i].soft_start)
1418                        val |= ARIZONA_MICB1_RATE;
1419
1420                if (arizona->pdata.micbias[i].bypass)
1421                        val |= ARIZONA_MICB1_BYPASS;
1422
1423                regmap_update_bits(arizona->regmap,
1424                                   ARIZONA_MIC_BIAS_CTRL_1 + i,
1425                                   ARIZONA_MICB1_LVL_MASK |
1426                                   ARIZONA_MICB1_EXT_CAP |
1427                                   ARIZONA_MICB1_DISCH |
1428                                   ARIZONA_MICB1_BYPASS |
1429                                   ARIZONA_MICB1_RATE, val);
1430        }
1431
1432        for (i = 0; i < ARIZONA_MAX_INPUT; i++) {
1433                /* Default for both is 0 so noop with defaults */
1434                val = arizona->pdata.dmic_ref[i]
1435                        << ARIZONA_IN1_DMIC_SUP_SHIFT;
1436                if (arizona->pdata.inmode[i] & ARIZONA_INMODE_DMIC)
1437                        val |= 1 << ARIZONA_IN1_MODE_SHIFT;
1438
1439                switch (arizona->type) {
1440                case WM8998:
1441                case WM1814:
1442                        regmap_update_bits(arizona->regmap,
1443                                ARIZONA_ADC_DIGITAL_VOLUME_1L + (i * 8),
1444                                ARIZONA_IN1L_SRC_SE_MASK,
1445                                (arizona->pdata.inmode[i] & ARIZONA_INMODE_SE)
1446                                        << ARIZONA_IN1L_SRC_SE_SHIFT);
1447
1448                        regmap_update_bits(arizona->regmap,
1449                                ARIZONA_ADC_DIGITAL_VOLUME_1R + (i * 8),
1450                                ARIZONA_IN1R_SRC_SE_MASK,
1451                                (arizona->pdata.inmode[i] & ARIZONA_INMODE_SE)
1452                                        << ARIZONA_IN1R_SRC_SE_SHIFT);
1453
1454                        mask = ARIZONA_IN1_DMIC_SUP_MASK |
1455                                ARIZONA_IN1_MODE_MASK;
1456                        break;
1457                default:
1458                        if (arizona->pdata.inmode[i] & ARIZONA_INMODE_SE)
1459                                val |= 1 << ARIZONA_IN1_SINGLE_ENDED_SHIFT;
1460
1461                        mask = ARIZONA_IN1_DMIC_SUP_MASK |
1462                                ARIZONA_IN1_MODE_MASK |
1463                                ARIZONA_IN1_SINGLE_ENDED_MASK;
1464                        break;
1465                }
1466
1467                regmap_update_bits(arizona->regmap,
1468                                   ARIZONA_IN1L_CONTROL + (i * 8),
1469                                   mask, val);
1470        }
1471
1472        for (i = 0; i < ARIZONA_MAX_OUTPUT; i++) {
1473                /* Default is 0 so noop with defaults */
1474                if (arizona->pdata.out_mono[i])
1475                        val = ARIZONA_OUT1_MONO;
1476                else
1477                        val = 0;
1478
1479                regmap_update_bits(arizona->regmap,
1480                                   ARIZONA_OUTPUT_PATH_CONFIG_1L + (i * 8),
1481                                   ARIZONA_OUT1_MONO, val);
1482        }
1483
1484        for (i = 0; i < ARIZONA_MAX_PDM_SPK; i++) {
1485                if (arizona->pdata.spk_mute[i])
1486                        regmap_update_bits(arizona->regmap,
1487                                           ARIZONA_PDM_SPK1_CTRL_1 + (i * 2),
1488                                           ARIZONA_SPK1_MUTE_ENDIAN_MASK |
1489                                           ARIZONA_SPK1_MUTE_SEQ1_MASK,
1490                                           arizona->pdata.spk_mute[i]);
1491
1492                if (arizona->pdata.spk_fmt[i])
1493                        regmap_update_bits(arizona->regmap,
1494                                           ARIZONA_PDM_SPK1_CTRL_2 + (i * 2),
1495                                           ARIZONA_SPK1_FMT_MASK,
1496                                           arizona->pdata.spk_fmt[i]);
1497        }
1498
1499        pm_runtime_set_active(arizona->dev);
1500        pm_runtime_enable(arizona->dev);
1501
1502        /* Set up for interrupts */
1503        ret = arizona_irq_init(arizona);
1504        if (ret != 0)
1505                goto err_pm;
1506
1507        pm_runtime_set_autosuspend_delay(arizona->dev, 100);
1508        pm_runtime_use_autosuspend(arizona->dev);
1509
1510        arizona_request_irq(arizona, ARIZONA_IRQ_CLKGEN_ERR, "CLKGEN error",
1511                            arizona_clkgen_err, arizona);
1512        arizona_request_irq(arizona, ARIZONA_IRQ_OVERCLOCKED, "Overclocked",
1513                            arizona_overclocked, arizona);
1514        arizona_request_irq(arizona, ARIZONA_IRQ_UNDERCLOCKED, "Underclocked",
1515                            arizona_underclocked, arizona);
1516
1517        ret = mfd_add_devices(arizona->dev, PLATFORM_DEVID_NONE,
1518                              subdevs, n_subdevs, NULL, 0, NULL);
1519
1520        if (ret) {
1521                dev_err(arizona->dev, "Failed to add subdevices: %d\n", ret);
1522                goto err_irq;
1523        }
1524
1525        return 0;
1526
1527err_irq:
1528        arizona_irq_exit(arizona);
1529err_pm:
1530        pm_runtime_disable(arizona->dev);
1531err_reset:
1532        arizona_enable_reset(arizona);
1533        regulator_disable(arizona->dcvdd);
1534err_enable:
1535        regulator_bulk_disable(arizona->num_core_supplies,
1536                               arizona->core_supplies);
1537err_dcvdd:
1538        regulator_put(arizona->dcvdd);
1539err_early:
1540        mfd_remove_devices(dev);
1541        return ret;
1542}
1543EXPORT_SYMBOL_GPL(arizona_dev_init);
1544
1545int arizona_dev_exit(struct arizona *arizona)
1546{
1547        disable_irq(arizona->irq);
1548        pm_runtime_disable(arizona->dev);
1549
1550        regulator_disable(arizona->dcvdd);
1551        regulator_put(arizona->dcvdd);
1552
1553        mfd_remove_devices(arizona->dev);
1554        arizona_free_irq(arizona, ARIZONA_IRQ_UNDERCLOCKED, arizona);
1555        arizona_free_irq(arizona, ARIZONA_IRQ_OVERCLOCKED, arizona);
1556        arizona_free_irq(arizona, ARIZONA_IRQ_CLKGEN_ERR, arizona);
1557        arizona_irq_exit(arizona);
1558        arizona_enable_reset(arizona);
1559
1560        regulator_bulk_disable(arizona->num_core_supplies,
1561                               arizona->core_supplies);
1562        return 0;
1563}
1564EXPORT_SYMBOL_GPL(arizona_dev_exit);
1565