kernel/drivers/mfd/ab8500-core.c

   1 /*
   2  * Copyright (C) ST-Ericsson SA 2010
   3  *
   4  * License Terms: GNU General Public License v2
   5  * Author: Srinidhi Kasagar <srinidhi.kasagar@stericsson.com>
   6  * Author: Rabin Vincent <rabin.vincent@stericsson.com>
   7  * Author: Mattias Wallin <mattias.wallin@stericsson.com>
   8  */
   9
  10 #include <linux/kernel.h>
  11 #include <linux/slab.h>
  12 #include <linux/init.h>
  13 #include <linux/irq.h>
  14 #include <linux/irqdomain.h>
  15 #include <linux/delay.h>
  16 #include <linux/interrupt.h>
  17 #include <linux/module.h>
  18 #include <linux/platform_device.h>
  19 #include <linux/mfd/core.h>
  20 #include <linux/mfd/abx500.h>
  21 #include <linux/mfd/abx500/ab8500.h>
  22 #include <linux/mfd/abx500/ab8500-bm.h>
  23 #include <linux/mfd/dbx500-prcmu.h>
  24 #include <linux/regulator/ab8500.h>
  25 #include <linux/of.h>
  26 #include <linux/of_device.h>
  27
  28 /*
  29  * Interrupt register offsets
  30  * Bank : 0x0E
  31  */
  32 #define AB8500_IT_SOURCE1_REG           0x00
  33 #define AB8500_IT_SOURCE2_REG           0x01
  34 #define AB8500_IT_SOURCE3_REG           0x02
  35 #define AB8500_IT_SOURCE4_REG           0x03
  36 #define AB8500_IT_SOURCE5_REG           0x04
  37 #define AB8500_IT_SOURCE6_REG           0x05
  38 #define AB8500_IT_SOURCE7_REG           0x06
  39 #define AB8500_IT_SOURCE8_REG           0x07
  40 #define AB9540_IT_SOURCE13_REG          0x0C
  41 #define AB8500_IT_SOURCE19_REG          0x12
  42 #define AB8500_IT_SOURCE20_REG          0x13
  43 #define AB8500_IT_SOURCE21_REG          0x14
  44 #define AB8500_IT_SOURCE22_REG          0x15
  45 #define AB8500_IT_SOURCE23_REG          0x16
  46 #define AB8500_IT_SOURCE24_REG          0x17
  47
  48 /*
  49  * latch registers
  50  */
  51 #define AB8500_IT_LATCH1_REG            0x20
  52 #define AB8500_IT_LATCH2_REG            0x21
  53 #define AB8500_IT_LATCH3_REG            0x22
  54 #define AB8500_IT_LATCH4_REG            0x23
  55 #define AB8500_IT_LATCH5_REG            0x24
  56 #define AB8500_IT_LATCH6_REG            0x25
  57 #define AB8500_IT_LATCH7_REG            0x26
  58 #define AB8500_IT_LATCH8_REG            0x27
  59 #define AB8500_IT_LATCH9_REG            0x28
  60 #define AB8500_IT_LATCH10_REG           0x29
  61 #define AB8500_IT_LATCH12_REG           0x2B
  62 #define AB9540_IT_LATCH13_REG           0x2C
  63 #define AB8500_IT_LATCH19_REG           0x32
  64 #define AB8500_IT_LATCH20_REG           0x33
  65 #define AB8500_IT_LATCH21_REG           0x34
  66 #define AB8500_IT_LATCH22_REG           0x35
  67 #define AB8500_IT_LATCH23_REG           0x36
  68 #define AB8500_IT_LATCH24_REG           0x37
  69
  70 /*
  71  * mask registers
  72  */
  73
  74 #define AB8500_IT_MASK1_REG             0x40
  75 #define AB8500_IT_MASK2_REG             0x41
  76 #define AB8500_IT_MASK3_REG             0x42
  77 #define AB8500_IT_MASK4_REG             0x43
  78 #define AB8500_IT_MASK5_REG             0x44
  79 #define AB8500_IT_MASK6_REG             0x45
  80 #define AB8500_IT_MASK7_REG             0x46
  81 #define AB8500_IT_MASK8_REG             0x47
  82 #define AB8500_IT_MASK9_REG             0x48
  83 #define AB8500_IT_MASK10_REG            0x49
  84 #define AB8500_IT_MASK11_REG            0x4A
  85 #define AB8500_IT_MASK12_REG            0x4B
  86 #define AB8500_IT_MASK13_REG            0x4C
  87 #define AB8500_IT_MASK14_REG            0x4D
  88 #define AB8500_IT_MASK15_REG            0x4E
  89 #define AB8500_IT_MASK16_REG            0x4F
  90 #define AB8500_IT_MASK17_REG            0x50
  91 #define AB8500_IT_MASK18_REG            0x51
  92 #define AB8500_IT_MASK19_REG            0x52
  93 #define AB8500_IT_MASK20_REG            0x53
  94 #define AB8500_IT_MASK21_REG            0x54
  95 #define AB8500_IT_MASK22_REG            0x55
  96 #define AB8500_IT_MASK23_REG            0x56
  97 #define AB8500_IT_MASK24_REG            0x57
  98 #define AB8500_IT_MASK25_REG            0x58
  99
 100 /*
 101  * latch hierarchy registers
 102  */
 103 #define AB8500_IT_LATCHHIER1_REG        0x60
 104 #define AB8500_IT_LATCHHIER2_REG        0x61
 105 #define AB8500_IT_LATCHHIER3_REG        0x62
 106 #define AB8540_IT_LATCHHIER4_REG        0x63
 107
 108 #define AB8500_IT_LATCHHIER_NUM         3
 109 #define AB8540_IT_LATCHHIER_NUM         4
 110
 111 #define AB8500_REV_REG                  0x80
 112 #define AB8500_IC_NAME_REG              0x82
 113 #define AB8500_SWITCH_OFF_STATUS        0x00
 114
 115 #define AB8500_TURN_ON_STATUS           0x00
 116 #define AB8505_TURN_ON_STATUS_2 0x04
 117
 118 #define AB8500_CH_USBCH_STAT1_REG       0x02
 119 #define VBUS_DET_DBNC100                0x02
 120 #define VBUS_DET_DBNC1                  0x01
 121
 122 static DEFINE_SPINLOCK(on_stat_lock);
 123 static u8 turn_on_stat_mask = 0xFF;
 124 static u8 turn_on_stat_set;
 125 static bool no_bm; /* No battery management */
 126 module_param(no_bm, bool, S_IRUGO);
 127
 128 #define AB9540_MODEM_CTRL2_REG                  0x23
 129 #define AB9540_MODEM_CTRL2_SWDBBRSTN_BIT        BIT(2)
 130
 131 /*
 132  * Map interrupt numbers to the LATCH and MASK register offsets, Interrupt
 133  * numbers are indexed into this array with (num / 8). The interupts are
 134  * defined in linux/mfd/ab8500.h
 135  *
 136  * This is one off from the register names, i.e. AB8500_IT_MASK1_REG is at
 137  * offset 0.
 138  */
 139 /* AB8500 support */
 140 static const int ab8500_irq_regoffset[AB8500_NUM_IRQ_REGS] = {
 141         0, 1, 2, 3, 4, 6, 7, 8, 9, 11, 18, 19, 20, 21,
 142 };
 143
 144 /* AB9540 / AB8505 support */
 145 static const int ab9540_irq_regoffset[AB9540_NUM_IRQ_REGS] = {
 146         0, 1, 2, 3, 4, 6, 7, 8, 9, 11, 18, 19, 20, 21, 12, 13, 24, 5, 22, 23
 147 };
 148
 149 /* AB8540 support */
 150 static const int ab8540_irq_regoffset[AB8540_NUM_IRQ_REGS] = {
 151         0, 1, 2, 3, 4, -1, -1, -1, -1, 11, 18, 19, 20, 21, 12, 13, 24, 5, 22,
 152         23, 25, 26, 27, 28, 29, 30, 31,
 153 };
 154
 155 static const char ab8500_version_str[][7] = {
 156         [AB8500_VERSION_AB8500] = "AB8500",
 157         [AB8500_VERSION_AB8505] = "AB8505",
 158         [AB8500_VERSION_AB9540] = "AB9540",
 159         [AB8500_VERSION_AB8540] = "AB8540",
 160 };
 161
 162 static int ab8500_prcmu_write(struct ab8500 *ab8500, u16 addr, u8 data)
 163 {
 164         int ret;
 165
 166         ret = prcmu_abb_write((u8)(addr >> 8), (u8)(addr & 0xFF), &data, 1);
 167         if (ret < 0)
 168                 dev_err(ab8500->dev, "prcmu i2c error %d\n", ret);
 169         return ret;
 170 }
 171
 172 static int ab8500_prcmu_write_masked(struct ab8500 *ab8500, u16 addr, u8 mask,
 173         u8 data)
 174 {
 175         int ret;
 176
 177         ret = prcmu_abb_write_masked((u8)(addr >> 8), (u8)(addr & 0xFF), &data,
 178                 &mask, 1);
 179         if (ret < 0)
 180                 dev_err(ab8500->dev, "prcmu i2c error %d\n", ret);
 181         return ret;
 182 }
 183
 184 static int ab8500_prcmu_read(struct ab8500 *ab8500, u16 addr)
 185 {
 186         int ret;
 187         u8 data;
 188
 189         ret = prcmu_abb_read((u8)(addr >> 8), (u8)(addr & 0xFF), &data, 1);
 190         if (ret < 0) {
 191                 dev_err(ab8500->dev, "prcmu i2c error %d\n", ret);
 192                 return ret;
 193         }
 194         return (int)data;
 195 }
 196
 197 static int ab8500_get_chip_id(struct device *dev)
 198 {
 199         struct ab8500 *ab8500;
 200
 201         if (!dev)
 202                 return -EINVAL;
 203         ab8500 = dev_get_drvdata(dev->parent);
 204         return ab8500 ? (int)ab8500->chip_id : -EINVAL;
 205 }
 206
 207 static int set_register_interruptible(struct ab8500 *ab8500, u8 bank,
 208         u8 reg, u8 data)
 209 {
 210         int ret;
 211         /*
 212          * Put the u8 bank and u8 register together into a an u16.
 213          * The bank on higher 8 bits and register in lower 8 bits.
 214          * */
 215         u16 addr = ((u16)bank) << 8 | reg;
 216
 217         dev_vdbg(ab8500->dev, "wr: addr %#x <= %#x\n", addr, data);
 218
 219         mutex_lock(&ab8500->lock);
 220
 221         ret = ab8500->write(ab8500, addr, data);
 222         if (ret < 0)
 223                 dev_err(ab8500->dev, "failed to write reg %#x: %d\n",
 224                         addr, ret);
 225         mutex_unlock(&ab8500->lock);
 226
 227         return ret;
 228 }
 229
 230 static int ab8500_set_register(struct device *dev, u8 bank,
 231         u8 reg, u8 value)
 232 {
 233         int ret;
 234         struct ab8500 *ab8500 = dev_get_drvdata(dev->parent);
 235
 236         atomic_inc(&ab8500->transfer_ongoing);
 237         ret = set_register_interruptible(ab8500, bank, reg, value);
 238         atomic_dec(&ab8500->transfer_ongoing);
 239         return ret;
 240 }
 241
 242 static int get_register_interruptible(struct ab8500 *ab8500, u8 bank,
 243         u8 reg, u8 *value)
 244 {
 245         int ret;
 246         /* put the u8 bank and u8 reg together into a an u16.
 247          * bank on higher 8 bits and reg in lower */
 248         u16 addr = ((u16)bank) << 8 | reg;
 249
 250         mutex_lock(&ab8500->lock);
 251
 252         ret = ab8500->read(ab8500, addr);
 253         if (ret < 0)
 254                 dev_err(ab8500->dev, "failed to read reg %#x: %d\n",
 255                         addr, ret);
 256         else
 257                 *value = ret;
 258
 259         mutex_unlock(&ab8500->lock);
 260         dev_vdbg(ab8500->dev, "rd: addr %#x => data %#x\n", addr, ret);
 261
 262         return ret;
 263 }
 264
 265 static int ab8500_get_register(struct device *dev, u8 bank,
 266         u8 reg, u8 *value)
 267 {
 268         int ret;
 269         struct ab8500 *ab8500 = dev_get_drvdata(dev->parent);
 270
 271         atomic_inc(&ab8500->transfer_ongoing);
 272         ret = get_register_interruptible(ab8500, bank, reg, value);
 273         atomic_dec(&ab8500->transfer_ongoing);
 274         return ret;
 275 }
 276
 277 static int mask_and_set_register_interruptible(struct ab8500 *ab8500, u8 bank,
 278         u8 reg, u8 bitmask, u8 bitvalues)
 279 {
 280         int ret;
 281         /* put the u8 bank and u8 reg together into a an u16.
 282          * bank on higher 8 bits and reg in lower */
 283         u16 addr = ((u16)bank) << 8 | reg;
 284
 285         mutex_lock(&ab8500->lock);
 286
 287         if (ab8500->write_masked == NULL) {
 288                 u8 data;
 289
 290                 ret = ab8500->read(ab8500, addr);
 291                 if (ret < 0) {
 292                         dev_err(ab8500->dev, "failed to read reg %#x: %d\n",
 293                                 addr, ret);
 294                         goto out;
 295                 }
 296
 297                 data = (u8)ret;
 298                 data = (~bitmask & data) | (bitmask & bitvalues);
 299
 300                 ret = ab8500->write(ab8500, addr, data);
 301                 if (ret < 0)
 302                         dev_err(ab8500->dev, "failed to write reg %#x: %d\n",
 303                                 addr, ret);
 304
 305                 dev_vdbg(ab8500->dev, "mask: addr %#x => data %#x\n", addr,
 306                         data);
 307                 goto out;
 308         }
 309         ret = ab8500->write_masked(ab8500, addr, bitmask, bitvalues);
 310         if (ret < 0)
 311                 dev_err(ab8500->dev, "failed to modify reg %#x: %d\n", addr,
 312                         ret);
 313 out:
 314         mutex_unlock(&ab8500->lock);
 315         return ret;
 316 }
 317
 318 static int ab8500_mask_and_set_register(struct device *dev,
 319         u8 bank, u8 reg, u8 bitmask, u8 bitvalues)
 320 {
 321         int ret;
 322         struct ab8500 *ab8500 = dev_get_drvdata(dev->parent);
 323
 324         atomic_inc(&ab8500->transfer_ongoing);
 325         ret = mask_and_set_register_interruptible(ab8500, bank, reg,
 326                                                  bitmask, bitvalues);
 327         atomic_dec(&ab8500->transfer_ongoing);
 328         return ret;
 329 }
 330
 331 static struct abx500_ops ab8500_ops = {
 332         .get_chip_id = ab8500_get_chip_id,
 333         .get_register = ab8500_get_register,
 334         .set_register = ab8500_set_register,
 335         .get_register_page = NULL,
 336         .set_register_page = NULL,
 337         .mask_and_set_register = ab8500_mask_and_set_register,
 338         .event_registers_startup_state_get = NULL,
 339         .startup_irq_enabled = NULL,
 340         .dump_all_banks = ab8500_dump_all_banks,
 341 };
 342
 343 static void ab8500_irq_lock(struct irq_data *data)
 344 {
 345         struct ab8500 *ab8500 = irq_data_get_irq_chip_data(data);
 346
 347         mutex_lock(&ab8500->irq_lock);
 348         atomic_inc(&ab8500->transfer_ongoing);
 349 }
 350
 351 static void ab8500_irq_sync_unlock(struct irq_data *data)
 352 {
 353         struct ab8500 *ab8500 = irq_data_get_irq_chip_data(data);
 354         int i;
 355
 356         for (i = 0; i < ab8500->mask_size; i++) {
 357                 u8 old = ab8500->oldmask[i];
 358                 u8 new = ab8500->mask[i];
 359                 int reg;
 360
 361                 if (new == old)
 362                         continue;
 363
 364                 /*
 365                  * Interrupt register 12 doesn't exist prior to AB8500 version
 366                  * 2.0
 367                  */
 368                 if (ab8500->irq_reg_offset[i] == 11 &&
 369                         is_ab8500_1p1_or_earlier(ab8500))
 370                         continue;
 371
 372                 if (ab8500->irq_reg_offset[i] < 0)
 373                         continue;
 374
 375                 ab8500->oldmask[i] = new;
 376
 377                 reg = AB8500_IT_MASK1_REG + ab8500->irq_reg_offset[i];
 378                 set_register_interruptible(ab8500, AB8500_INTERRUPT, reg, new);
 379         }
 380         atomic_dec(&ab8500->transfer_ongoing);
 381         mutex_unlock(&ab8500->irq_lock);
 382 }
 383
 384 static void ab8500_irq_mask(struct irq_data *data)
 385 {
 386         struct ab8500 *ab8500 = irq_data_get_irq_chip_data(data);
 387         int offset = data->hwirq;
 388         int index = offset / 8;
 389         int mask = 1 << (offset % 8);
 390
 391         ab8500->mask[index] |= mask;
 392
 393         /* The AB8500 GPIOs have two interrupts each (rising & falling). */
 394         if (offset >= AB8500_INT_GPIO6R && offset <= AB8500_INT_GPIO41R)
 395                 ab8500->mask[index + 2] |= mask;
 396         if (offset >= AB9540_INT_GPIO50R && offset <= AB9540_INT_GPIO54R)
 397                 ab8500->mask[index + 1] |= mask;
 398         if (offset == AB8540_INT_GPIO43R || offset == AB8540_INT_GPIO44R)
 399                 /* Here the falling IRQ is one bit lower */
 400                 ab8500->mask[index] |= (mask << 1);
 401 }
 402
 403 static void ab8500_irq_unmask(struct irq_data *data)
 404 {
 405         struct ab8500 *ab8500 = irq_data_get_irq_chip_data(data);
 406         unsigned int type = irqd_get_trigger_type(data);
 407         int offset = data->hwirq;
 408         int index = offset / 8;
 409         int mask = 1 << (offset % 8);
 410
 411         if (type & IRQ_TYPE_EDGE_RISING)
 412                 ab8500->mask[index] &= ~mask;
 413
 414         /* The AB8500 GPIOs have two interrupts each (rising & falling). */
 415         if (type & IRQ_TYPE_EDGE_FALLING) {
 416                 if (offset >= AB8500_INT_GPIO6R && offset <= AB8500_INT_GPIO41R)
 417                         ab8500->mask[index + 2] &= ~mask;
 418                 else if (offset >= AB9540_INT_GPIO50R &&
 419                          offset <= AB9540_INT_GPIO54R)
 420                         ab8500->mask[index + 1] &= ~mask;
 421                 else if (offset == AB8540_INT_GPIO43R ||
 422                          offset == AB8540_INT_GPIO44R)
 423                         /* Here the falling IRQ is one bit lower */
 424                         ab8500->mask[index] &= ~(mask << 1);
 425                 else
 426                         ab8500->mask[index] &= ~mask;
 427         } else {
 428                 /* Satisfies the case where type is not set. */
 429                 ab8500->mask[index] &= ~mask;
 430         }
 431 }
 432
 433 static int ab8500_irq_set_type(struct irq_data *data, unsigned int type)
 434 {
 435         return 0;
 436 }
 437
 438 static struct irq_chip ab8500_irq_chip = {
 439         .name                   = "ab8500",
 440         .irq_bus_lock           = ab8500_irq_lock,
 441         .irq_bus_sync_unlock    = ab8500_irq_sync_unlock,
 442         .irq_mask               = ab8500_irq_mask,
 443         .irq_disable            = ab8500_irq_mask,
 444         .irq_unmask             = ab8500_irq_unmask,
 445         .irq_set_type           = ab8500_irq_set_type,
 446 };
 447
 448 static void update_latch_offset(u8 *offset, int i)
 449 {
 450         /* Fix inconsistent ITFromLatch25 bit mapping... */
 451         if (unlikely(*offset == 17))
 452                         *offset = 24;
 453         /* Fix inconsistent ab8540 bit mapping... */
 454         if (unlikely(*offset == 16))
 455                         *offset = 25;
 456         if ((i == 3) && (*offset >= 24))
 457                         *offset += 2;
 458 }
 459
 460 static int ab8500_handle_hierarchical_line(struct ab8500 *ab8500,
 461                                         int latch_offset, u8 latch_val)
 462 {
 463         int int_bit, line, i;
 464
 465         for (i = 0; i < ab8500->mask_size; i++)
 466                 if (ab8500->irq_reg_offset[i] == latch_offset)
 467                         break;
 468
 469         if (i >= ab8500->mask_size) {
 470                 dev_err(ab8500->dev, "Register offset 0x%2x not declared\n",
 471                                 latch_offset);
 472                 return -ENXIO;
 473         }
 474
 475         /* ignore masked out interrupts */
 476         latch_val &= ~ab8500->mask[i];
 477
 478         while (latch_val) {
 479                 int_bit = __ffs(latch_val);
 480                 line = (i << 3) + int_bit;
 481                 latch_val &= ~(1 << int_bit);
 482
 483                 /*
 484                  * This handles the falling edge hwirqs from the GPIO
 485                  * lines. Route them back to the line registered for the
 486                  * rising IRQ, as this is merely a flag for the same IRQ
 487                  * in linux terms.
 488                  */
 489                 if (line >= AB8500_INT_GPIO6F && line <= AB8500_INT_GPIO41F)
 490                         line -= 16;
 491                 if (line >= AB9540_INT_GPIO50F && line <= AB9540_INT_GPIO54F)
 492                         line -= 8;
 493                 if (line == AB8540_INT_GPIO43F || line == AB8540_INT_GPIO44F)
 494                         line += 1;
 495
 496                 handle_nested_irq(irq_create_mapping(ab8500->domain, line));
 497         }
 498
 499         return 0;
 500 }
 501
 502 static int ab8500_handle_hierarchical_latch(struct ab8500 *ab8500,
 503                                         int hier_offset, u8 hier_val)
 504 {
 505         int latch_bit, status;
 506         u8 latch_offset, latch_val;
 507
 508         do {
 509                 latch_bit = __ffs(hier_val);
 510                 latch_offset = (hier_offset << 3) + latch_bit;
 511
 512                 update_latch_offset(&latch_offset, hier_offset);
 513
 514                 status = get_register_interruptible(ab8500,
 515                                 AB8500_INTERRUPT,
 516                                 AB8500_IT_LATCH1_REG + latch_offset,
 517                                 &latch_val);
 518                 if (status < 0 || latch_val == 0)
 519                         goto discard;
 520
 521                 status = ab8500_handle_hierarchical_line(ab8500,
 522                                 latch_offset, latch_val);
 523                 if (status < 0)
 524                         return status;
 525 discard:
 526                 hier_val &= ~(1 << latch_bit);
 527         } while (hier_val);
 528
 529         return 0;
 530 }
 531
 532 static irqreturn_t ab8500_hierarchical_irq(int irq, void *dev)
 533 {
 534         struct ab8500 *ab8500 = dev;
 535         u8 i;
 536
 537         dev_vdbg(ab8500->dev, "interrupt\n");
 538
 539         /*  Hierarchical interrupt version */
 540         for (i = 0; i < (ab8500->it_latchhier_num); i++) {
 541                 int status;
 542                 u8 hier_val;
 543
 544                 status = get_register_interruptible(ab8500, AB8500_INTERRUPT,
 545                         AB8500_IT_LATCHHIER1_REG + i, &hier_val);
 546                 if (status < 0 || hier_val == 0)
 547                         continue;
 548
 549                 status = ab8500_handle_hierarchical_latch(ab8500, i, hier_val);
 550                 if (status < 0)
 551                         break;
 552         }
 553         return IRQ_HANDLED;
 554 }
 555
 556 static int ab8500_irq_map(struct irq_domain *d, unsigned int virq,
 557                                 irq_hw_number_t hwirq)
 558 {
 559         struct ab8500 *ab8500 = d->host_data;
 560
 561         if (!ab8500)
 562                 return -EINVAL;
 563
 564         irq_set_chip_data(virq, ab8500);
 565         irq_set_chip_and_handler(virq, &ab8500_irq_chip,
 566                                 handle_simple_irq);
 567         irq_set_nested_thread(virq, 1);
 568 #ifdef CONFIG_ARM
 569         set_irq_flags(virq, IRQF_VALID);
 570 #else
 571         irq_set_noprobe(virq);
 572 #endif
 573
 574         return 0;
 575 }
 576
 577 static struct irq_domain_ops ab8500_irq_ops = {
 578         .map    = ab8500_irq_map,
 579         .xlate  = irq_domain_xlate_twocell,
 580 };
 581
 582 static int ab8500_irq_init(struct ab8500 *ab8500, struct device_node *np)
 583 {
 584         int num_irqs;
 585
 586         if (is_ab8540(ab8500))
 587                 num_irqs = AB8540_NR_IRQS;
 588         else if (is_ab9540(ab8500))
 589                 num_irqs = AB9540_NR_IRQS;
 590         else if (is_ab8505(ab8500))
 591                 num_irqs = AB8505_NR_IRQS;
 592         else
 593                 num_irqs = AB8500_NR_IRQS;
 594
 595         /* If ->irq_base is zero this will give a linear mapping */
 596         ab8500->domain = irq_domain_add_simple(ab8500->dev->of_node,
 597                         num_irqs, 0,
 598                         &ab8500_irq_ops, ab8500);
 599
 600         if (!ab8500->domain) {
 601                 dev_err(ab8500->dev, "Failed to create irqdomain\n");
 602                 return -ENOSYS;
 603         }
 604
 605         return 0;
 606 }
 607
 608 int ab8500_suspend(struct ab8500 *ab8500)
 609 {
 610         if (atomic_read(&ab8500->transfer_ongoing))
 611                 return -EINVAL;
 612
 613         return 0;
 614 }
 615
 616 static struct resource ab8500_gpadc_resources[] = {
 617         {
 618                 .name   = "HW_CONV_END",
 619                 .start  = AB8500_INT_GP_HW_ADC_CONV_END,
 620                 .end    = AB8500_INT_GP_HW_ADC_CONV_END,
 621                 .flags  = IORESOURCE_IRQ,
 622         },
 623         {
 624                 .name   = "SW_CONV_END",
 625                 .start  = AB8500_INT_GP_SW_ADC_CONV_END,
 626                 .end    = AB8500_INT_GP_SW_ADC_CONV_END,
 627                 .flags  = IORESOURCE_IRQ,
 628         },
 629 };
 630
 631 static struct resource ab8505_gpadc_resources[] = {
 632         {
 633                 .name   = "SW_CONV_END",
 634                 .start  = AB8500_INT_GP_SW_ADC_CONV_END,
 635                 .end    = AB8500_INT_GP_SW_ADC_CONV_END,
 636                 .flags  = IORESOURCE_IRQ,
 637         },
 638 };
 639
 640 static struct resource ab8500_rtc_resources[] = {
 641         {
 642                 .name   = "60S",
 643                 .start  = AB8500_INT_RTC_60S,
 644                 .end    = AB8500_INT_RTC_60S,
 645                 .flags  = IORESOURCE_IRQ,
 646         },
 647         {
 648                 .name   = "ALARM",
 649                 .start  = AB8500_INT_RTC_ALARM,
 650                 .end    = AB8500_INT_RTC_ALARM,
 651                 .flags  = IORESOURCE_IRQ,
 652         },
 653 };
 654
 655 static struct resource ab8540_rtc_resources[] = {
 656         {
 657                 .name   = "1S",
 658                 .start  = AB8540_INT_RTC_1S,
 659                 .end    = AB8540_INT_RTC_1S,
 660                 .flags  = IORESOURCE_IRQ,
 661         },
 662         {
 663                 .name   = "ALARM",
 664                 .start  = AB8500_INT_RTC_ALARM,
 665                 .end    = AB8500_INT_RTC_ALARM,
 666                 .flags  = IORESOURCE_IRQ,
 667         },
 668 };
 669
 670 static struct resource ab8500_poweronkey_db_resources[] = {
 671         {
 672                 .name   = "ONKEY_DBF",
 673                 .start  = AB8500_INT_PON_KEY1DB_F,
 674                 .end    = AB8500_INT_PON_KEY1DB_F,
 675                 .flags  = IORESOURCE_IRQ,
 676         },
 677         {
 678                 .name   = "ONKEY_DBR",
 679                 .start  = AB8500_INT_PON_KEY1DB_R,
 680                 .end    = AB8500_INT_PON_KEY1DB_R,
 681                 .flags  = IORESOURCE_IRQ,
 682         },
 683 };
 684
 685 static struct resource ab8500_av_acc_detect_resources[] = {
 686         {
 687                .name = "ACC_DETECT_1DB_F",
 688                .start = AB8500_INT_ACC_DETECT_1DB_F,
 689                .end = AB8500_INT_ACC_DETECT_1DB_F,
 690                .flags = IORESOURCE_IRQ,
 691         },
 692         {
 693                .name = "ACC_DETECT_1DB_R",
 694                .start = AB8500_INT_ACC_DETECT_1DB_R,
 695                .end = AB8500_INT_ACC_DETECT_1DB_R,
 696                .flags = IORESOURCE_IRQ,
 697         },
 698         {
 699                .name = "ACC_DETECT_21DB_F",
 700                .start = AB8500_INT_ACC_DETECT_21DB_F,
 701                .end = AB8500_INT_ACC_DETECT_21DB_F,
 702                .flags = IORESOURCE_IRQ,
 703         },
 704         {
 705                .name = "ACC_DETECT_21DB_R",
 706                .start = AB8500_INT_ACC_DETECT_21DB_R,
 707                .end = AB8500_INT_ACC_DETECT_21DB_R,
 708                .flags = IORESOURCE_IRQ,
 709         },
 710         {
 711                .name = "ACC_DETECT_22DB_F",
 712                .start = AB8500_INT_ACC_DETECT_22DB_F,
 713                .end = AB8500_INT_ACC_DETECT_22DB_F,
 714                .flags = IORESOURCE_IRQ,
 715         },
 716         {
 717                .name = "ACC_DETECT_22DB_R",
 718                .start = AB8500_INT_ACC_DETECT_22DB_R,
 719                .end = AB8500_INT_ACC_DETECT_22DB_R,
 720                .flags = IORESOURCE_IRQ,
 721         },
 722 };
 723
 724 static struct resource ab8500_charger_resources[] = {
 725         {
 726                 .name = "MAIN_CH_UNPLUG_DET",
 727                 .start = AB8500_INT_MAIN_CH_UNPLUG_DET,
 728                 .end = AB8500_INT_MAIN_CH_UNPLUG_DET,
 729                 .flags = IORESOURCE_IRQ,
 730         },
 731         {
 732                 .name = "MAIN_CHARGE_PLUG_DET",
 733                 .start = AB8500_INT_MAIN_CH_PLUG_DET,
 734                 .end = AB8500_INT_MAIN_CH_PLUG_DET,
 735                 .flags = IORESOURCE_IRQ,
 736         },
 737         {
 738                 .name = "VBUS_DET_R",
 739                 .start = AB8500_INT_VBUS_DET_R,
 740                 .end = AB8500_INT_VBUS_DET_R,
 741                 .flags = IORESOURCE_IRQ,
 742         },
 743         {
 744                 .name = "VBUS_DET_F",
 745                 .start = AB8500_INT_VBUS_DET_F,
 746                 .end = AB8500_INT_VBUS_DET_F,
 747                 .flags = IORESOURCE_IRQ,
 748         },
 749         {
 750                 .name = "USB_LINK_STATUS",
 751                 .start = AB8500_INT_USB_LINK_STATUS,
 752                 .end = AB8500_INT_USB_LINK_STATUS,
 753                 .flags = IORESOURCE_IRQ,
 754         },
 755         {
 756                 .name = "VBUS_OVV",
 757                 .start = AB8500_INT_VBUS_OVV,
 758                 .end = AB8500_INT_VBUS_OVV,
 759                 .flags = IORESOURCE_IRQ,
 760         },
 761         {
 762                 .name = "USB_CH_TH_PROT_R",
 763                 .start = AB8500_INT_USB_CH_TH_PROT_R,
 764                 .end = AB8500_INT_USB_CH_TH_PROT_R,
 765                 .flags = IORESOURCE_IRQ,
 766         },
 767         {
 768                 .name = "USB_CH_TH_PROT_F",
 769                 .start = AB8500_INT_USB_CH_TH_PROT_F,
 770                 .end = AB8500_INT_USB_CH_TH_PROT_F,
 771                 .flags = IORESOURCE_IRQ,
 772         },
 773         {
 774                 .name = "MAIN_EXT_CH_NOT_OK",
 775                 .start = AB8500_INT_MAIN_EXT_CH_NOT_OK,
 776                 .end = AB8500_INT_MAIN_EXT_CH_NOT_OK,
 777                 .flags = IORESOURCE_IRQ,
 778         },
 779         {
 780                 .name = "MAIN_CH_TH_PROT_R",
 781                 .start = AB8500_INT_MAIN_CH_TH_PROT_R,
 782                 .end = AB8500_INT_MAIN_CH_TH_PROT_R,
 783                 .flags = IORESOURCE_IRQ,
 784         },
 785         {
 786                 .name = "MAIN_CH_TH_PROT_F",
 787                 .start = AB8500_INT_MAIN_CH_TH_PROT_F,
 788                 .end = AB8500_INT_MAIN_CH_TH_PROT_F,
 789                 .flags = IORESOURCE_IRQ,
 790         },
 791         {
 792                 .name = "USB_CHARGER_NOT_OKR",
 793                 .start = AB8500_INT_USB_CHARGER_NOT_OKR,
 794                 .end = AB8500_INT_USB_CHARGER_NOT_OKR,
 795                 .flags = IORESOURCE_IRQ,
 796         },
 797         {
 798                 .name = "CH_WD_EXP",
 799                 .start = AB8500_INT_CH_WD_EXP,
 800                 .end = AB8500_INT_CH_WD_EXP,
 801                 .flags = IORESOURCE_IRQ,
 802         },
 803         {
 804                 .name = "VBUS_CH_DROP_END",
 805                 .start = AB8500_INT_VBUS_CH_DROP_END,
 806                 .end = AB8500_INT_VBUS_CH_DROP_END,
 807                 .flags = IORESOURCE_IRQ,
 808         },
 809 };
 810
 811 static struct resource ab8500_btemp_resources[] = {
 812         {
 813                 .name = "BAT_CTRL_INDB",
 814                 .start = AB8500_INT_BAT_CTRL_INDB,
 815                 .end = AB8500_INT_BAT_CTRL_INDB,
 816                 .flags = IORESOURCE_IRQ,
 817         },
 818         {
 819                 .name = "BTEMP_LOW",
 820                 .start = AB8500_INT_BTEMP_LOW,
 821                 .end = AB8500_INT_BTEMP_LOW,
 822                 .flags = IORESOURCE_IRQ,
 823         },
 824         {
 825                 .name = "BTEMP_HIGH",
 826                 .start = AB8500_INT_BTEMP_HIGH,
 827                 .end = AB8500_INT_BTEMP_HIGH,
 828                 .flags = IORESOURCE_IRQ,
 829         },
 830         {
 831                 .name = "BTEMP_LOW_MEDIUM",
 832                 .start = AB8500_INT_BTEMP_LOW_MEDIUM,
 833                 .end = AB8500_INT_BTEMP_LOW_MEDIUM,
 834                 .flags = IORESOURCE_IRQ,
 835         },
 836         {
 837                 .name = "BTEMP_MEDIUM_HIGH",
 838                 .start = AB8500_INT_BTEMP_MEDIUM_HIGH,
 839                 .end = AB8500_INT_BTEMP_MEDIUM_HIGH,
 840                 .flags = IORESOURCE_IRQ,
 841         },
 842 };
 843
 844 static struct resource ab8500_fg_resources[] = {
 845         {
 846                 .name = "NCONV_ACCU",
 847                 .start = AB8500_INT_CCN_CONV_ACC,
 848                 .end = AB8500_INT_CCN_CONV_ACC,
 849                 .flags = IORESOURCE_IRQ,
 850         },
 851         {
 852                 .name = "BATT_OVV",
 853                 .start = AB8500_INT_BATT_OVV,
 854                 .end = AB8500_INT_BATT_OVV,
 855                 .flags = IORESOURCE_IRQ,
 856         },
 857         {
 858                 .name = "LOW_BAT_F",
 859                 .start = AB8500_INT_LOW_BAT_F,
 860                 .end = AB8500_INT_LOW_BAT_F,
 861                 .flags = IORESOURCE_IRQ,
 862         },
 863         {
 864                 .name = "LOW_BAT_R",
 865                 .start = AB8500_INT_LOW_BAT_R,
 866                 .end = AB8500_INT_LOW_BAT_R,
 867                 .flags = IORESOURCE_IRQ,
 868         },
 869         {
 870                 .name = "CC_INT_CALIB",
 871                 .start = AB8500_INT_CC_INT_CALIB,
 872                 .end = AB8500_INT_CC_INT_CALIB,
 873                 .flags = IORESOURCE_IRQ,
 874         },
 875         {
 876                 .name = "CCEOC",
 877                 .start = AB8500_INT_CCEOC,
 878                 .end = AB8500_INT_CCEOC,
 879                 .flags = IORESOURCE_IRQ,
 880         },
 881 };
 882
 883 static struct resource ab8500_chargalg_resources[] = {};
 884
 885 #ifdef CONFIG_DEBUG_FS
 886 static struct resource ab8500_debug_resources[] = {
 887         {
 888                 .name   = "IRQ_AB8500",
 889                 /*
 890                  * Number will be filled in. NOTE: this is deliberately
 891                  * not flagged as an IRQ in ordet to avoid remapping using
 892                  * the irqdomain in the MFD core, so that this IRQ passes
 893                  * unremapped to the debug code.
 894                  */
 895         },
 896         {
 897                 .name   = "IRQ_FIRST",
 898                 .start  = AB8500_INT_MAIN_EXT_CH_NOT_OK,
 899                 .end    = AB8500_INT_MAIN_EXT_CH_NOT_OK,
 900                 .flags  = IORESOURCE_IRQ,
 901         },
 902         {
 903                 .name   = "IRQ_LAST",
 904                 .start  = AB8500_INT_XTAL32K_KO,
 905                 .end    = AB8500_INT_XTAL32K_KO,
 906                 .flags  = IORESOURCE_IRQ,
 907         },
 908 };
 909 #endif
 910
 911 static struct resource ab8500_usb_resources[] = {
 912         {
 913                 .name = "ID_WAKEUP_R",
 914                 .start = AB8500_INT_ID_WAKEUP_R,
 915                 .end = AB8500_INT_ID_WAKEUP_R,
 916                 .flags = IORESOURCE_IRQ,
 917         },
 918         {
 919                 .name = "ID_WAKEUP_F",
 920                 .start = AB8500_INT_ID_WAKEUP_F,
 921                 .end = AB8500_INT_ID_WAKEUP_F,
 922                 .flags = IORESOURCE_IRQ,
 923         },
 924         {
 925                 .name = "VBUS_DET_F",
 926                 .start = AB8500_INT_VBUS_DET_F,
 927                 .end = AB8500_INT_VBUS_DET_F,
 928                 .flags = IORESOURCE_IRQ,
 929         },
 930         {
 931                 .name = "VBUS_DET_R",
 932                 .start = AB8500_INT_VBUS_DET_R,
 933                 .end = AB8500_INT_VBUS_DET_R,
 934                 .flags = IORESOURCE_IRQ,
 935         },
 936         {
 937                 .name = "USB_LINK_STATUS",
 938                 .start = AB8500_INT_USB_LINK_STATUS,
 939                 .end = AB8500_INT_USB_LINK_STATUS,
 940                 .flags = IORESOURCE_IRQ,
 941         },
 942         {
 943                 .name = "USB_ADP_PROBE_PLUG",
 944                 .start = AB8500_INT_ADP_PROBE_PLUG,
 945                 .end = AB8500_INT_ADP_PROBE_PLUG,
 946                 .flags = IORESOURCE_IRQ,
 947         },
 948         {
 949                 .name = "USB_ADP_PROBE_UNPLUG",
 950                 .start = AB8500_INT_ADP_PROBE_UNPLUG,
 951                 .end = AB8500_INT_ADP_PROBE_UNPLUG,
 952                 .flags = IORESOURCE_IRQ,
 953         },
 954 };
 955
 956 static struct resource ab8505_iddet_resources[] = {
 957         {
 958                 .name  = "KeyDeglitch",
 959                 .start = AB8505_INT_KEYDEGLITCH,
 960                 .end   = AB8505_INT_KEYDEGLITCH,
 961                 .flags = IORESOURCE_IRQ,
 962         },
 963         {
 964                 .name  = "KP",
 965                 .start = AB8505_INT_KP,
 966                 .end   = AB8505_INT_KP,
 967                 .flags = IORESOURCE_IRQ,
 968         },
 969         {
 970                 .name  = "IKP",
 971                 .start = AB8505_INT_IKP,
 972                 .end   = AB8505_INT_IKP,
 973                 .flags = IORESOURCE_IRQ,
 974         },
 975         {
 976                 .name  = "IKR",
 977                 .start = AB8505_INT_IKR,
 978                 .end   = AB8505_INT_IKR,
 979                 .flags = IORESOURCE_IRQ,
 980         },
 981         {
 982                 .name  = "KeyStuck",
 983                 .start = AB8505_INT_KEYSTUCK,
 984                 .end   = AB8505_INT_KEYSTUCK,
 985                 .flags = IORESOURCE_IRQ,
 986         },
 987         {
 988                 .name = "VBUS_DET_R",
 989                 .start = AB8500_INT_VBUS_DET_R,
 990                 .end = AB8500_INT_VBUS_DET_R,
 991                 .flags = IORESOURCE_IRQ,
 992         },
 993         {
 994                 .name = "VBUS_DET_F",
 995                 .start = AB8500_INT_VBUS_DET_F,
 996                 .end = AB8500_INT_VBUS_DET_F,
 997                 .flags = IORESOURCE_IRQ,
 998         },
 999         {
1000                 .name = "ID_DET_PLUGR",
1001                 .start = AB8500_INT_ID_DET_PLUGR,
1002                 .end = AB8500_INT_ID_DET_PLUGR,
1003                 .flags = IORESOURCE_IRQ,
1004         },
1005         {
1006                 .name = "ID_DET_PLUGF",
1007                 .start = AB8500_INT_ID_DET_PLUGF,
1008                 .end = AB8500_INT_ID_DET_PLUGF,
1009                 .flags = IORESOURCE_IRQ,
1010         },
1011 };
1012
1013 static struct resource ab8500_temp_resources[] = {
1014         {
1015                 .name  = "ABX500_TEMP_WARM",
1016                 .start = AB8500_INT_TEMP_WARM,
1017                 .end   = AB8500_INT_TEMP_WARM,
1018                 .flags = IORESOURCE_IRQ,
1019         },
1020 };
1021
1022 static const struct mfd_cell ab8500_bm_devs[] = {
1023         {
1024                 .name = "ab8500-charger",
1025                 .of_compatible = "stericsson,ab8500-charger",
1026                 .num_resources = ARRAY_SIZE(ab8500_charger_resources),
1027                 .resources = ab8500_charger_resources,
1028                 .platform_data = &ab8500_bm_data,
1029                 .pdata_size = sizeof(ab8500_bm_data),
1030         },
1031         {
1032                 .name = "ab8500-btemp",
1033                 .of_compatible = "stericsson,ab8500-btemp",
1034                 .num_resources = ARRAY_SIZE(ab8500_btemp_resources),
1035                 .resources = ab8500_btemp_resources,
1036                 .platform_data = &ab8500_bm_data,
1037                 .pdata_size = sizeof(ab8500_bm_data),
1038         },
1039         {
1040                 .name = "ab8500-fg",
1041                 .of_compatible = "stericsson,ab8500-fg",
1042                 .num_resources = ARRAY_SIZE(ab8500_fg_resources),
1043                 .resources = ab8500_fg_resources,
1044                 .platform_data = &ab8500_bm_data,
1045                 .pdata_size = sizeof(ab8500_bm_data),
1046         },
1047         {
1048                 .name = "ab8500-chargalg",
1049                 .of_compatible = "stericsson,ab8500-chargalg",
1050                 .num_resources = ARRAY_SIZE(ab8500_chargalg_resources),
1051                 .resources = ab8500_chargalg_resources,
1052                 .platform_data = &ab8500_bm_data,
1053                 .pdata_size = sizeof(ab8500_bm_data),
1054         },
1055 };
1056
1057 static const struct mfd_cell ab8500_devs[] = {
1058 #ifdef CONFIG_DEBUG_FS
1059         {
1060                 .name = "ab8500-debug",
1061                 .of_compatible = "stericsson,ab8500-debug",
1062                 .num_resources = ARRAY_SIZE(ab8500_debug_resources),
1063                 .resources = ab8500_debug_resources,
1064         },
1065 #endif
1066         {
1067                 .name = "ab8500-sysctrl",
1068                 .of_compatible = "stericsson,ab8500-sysctrl",
1069         },
1070         {
1071                 .name = "ab8500-ext-regulator",
1072                 .of_compatible = "stericsson,ab8500-ext-regulator",
1073         },
1074         {
1075                 .name = "ab8500-regulator",
1076                 .of_compatible = "stericsson,ab8500-regulator",
1077         },
1078         {
1079                 .name = "abx500-clk",
1080                 .of_compatible = "stericsson,abx500-clk",
1081         },
1082         {
1083                 .name = "ab8500-gpadc",
1084                 .of_compatible = "stericsson,ab8500-gpadc",
1085                 .num_resources = ARRAY_SIZE(ab8500_gpadc_resources),
1086                 .resources = ab8500_gpadc_resources,
1087         },
1088         {
1089                 .name = "ab8500-rtc",
1090                 .of_compatible = "stericsson,ab8500-rtc",
1091                 .num_resources = ARRAY_SIZE(ab8500_rtc_resources),
1092                 .resources = ab8500_rtc_resources,
1093         },
1094         {
1095                 .name = "ab8500-acc-det",
1096                 .of_compatible = "stericsson,ab8500-acc-det",
1097                 .num_resources = ARRAY_SIZE(ab8500_av_acc_detect_resources),
1098                 .resources = ab8500_av_acc_detect_resources,
1099         },
1100         {
1101
1102                 .name = "ab8500-poweron-key",
1103                 .of_compatible = "stericsson,ab8500-poweron-key",
1104                 .num_resources = ARRAY_SIZE(ab8500_poweronkey_db_resources),
1105                 .resources = ab8500_poweronkey_db_resources,
1106         },
1107         {
1108                 .name = "ab8500-pwm",
1109                 .of_compatible = "stericsson,ab8500-pwm",
1110                 .id = 1,
1111         },
1112         {
1113                 .name = "ab8500-pwm",
1114                 .of_compatible = "stericsson,ab8500-pwm",
1115                 .id = 2,
1116         },
1117         {
1118                 .name = "ab8500-pwm",
1119                 .of_compatible = "stericsson,ab8500-pwm",
1120                 .id = 3,
1121         },
1122         {
1123                 .name = "ab8500-denc",
1124                 .of_compatible = "stericsson,ab8500-denc",
1125         },
1126         {
1127                 .name = "pinctrl-ab8500",
1128                 .of_compatible = "stericsson,ab8500-gpio",
1129         },
1130         {
1131                 .name = "abx500-temp",
1132                 .of_compatible = "stericsson,abx500-temp",
1133                 .num_resources = ARRAY_SIZE(ab8500_temp_resources),
1134                 .resources = ab8500_temp_resources,
1135         },
1136         {
1137                 .name = "ab8500-usb",
1138                 .of_compatible = "stericsson,ab8500-usb",
1139                 .num_resources = ARRAY_SIZE(ab8500_usb_resources),
1140                 .resources = ab8500_usb_resources,
1141         },
1142         {
1143                 .name = "ab8500-codec",
1144                 .of_compatible = "stericsson,ab8500-codec",
1145         },
1146 };
1147
1148 static const struct mfd_cell ab9540_devs[] = {
1149 #ifdef CONFIG_DEBUG_FS
1150         {
1151                 .name = "ab8500-debug",
1152                 .num_resources = ARRAY_SIZE(ab8500_debug_resources),
1153                 .resources = ab8500_debug_resources,
1154         },
1155 #endif
1156         {
1157                 .name = "ab8500-sysctrl",
1158         },
1159         {
1160                 .name = "ab8500-ext-regulator",
1161         },
1162         {
1163                 .name = "ab8500-regulator",
1164         },
1165         {
1166                 .name = "abx500-clk",
1167                 .of_compatible = "stericsson,abx500-clk",
1168         },
1169         {
1170                 .name = "ab8500-gpadc",
1171                 .of_compatible = "stericsson,ab8500-gpadc",
1172                 .num_resources = ARRAY_SIZE(ab8500_gpadc_resources),
1173                 .resources = ab8500_gpadc_resources,
1174         },
1175         {
1176                 .name = "ab8500-rtc",
1177                 .num_resources = ARRAY_SIZE(ab8500_rtc_resources),
1178                 .resources = ab8500_rtc_resources,
1179         },
1180         {
1181                 .name = "ab8500-acc-det",
1182                 .num_resources = ARRAY_SIZE(ab8500_av_acc_detect_resources),
1183                 .resources = ab8500_av_acc_detect_resources,
1184         },
1185         {
1186                 .name = "ab8500-poweron-key",
1187                 .num_resources = ARRAY_SIZE(ab8500_poweronkey_db_resources),
1188                 .resources = ab8500_poweronkey_db_resources,
1189         },
1190         {
1191                 .name = "ab8500-pwm",
1192                 .id = 1,
1193         },
1194         {
1195                 .name = "abx500-temp",
1196                 .num_resources = ARRAY_SIZE(ab8500_temp_resources),
1197                 .resources = ab8500_temp_resources,
1198         },
1199         {
1200                 .name = "pinctrl-ab9540",
1201                 .of_compatible = "stericsson,ab9540-gpio",
1202         },
1203         {
1204                 .name = "ab9540-usb",
1205                 .num_resources = ARRAY_SIZE(ab8500_usb_resources),
1206                 .resources = ab8500_usb_resources,
1207         },
1208         {
1209                 .name = "ab9540-codec",
1210         },
1211         {
1212                 .name = "ab-iddet",
1213                 .num_resources = ARRAY_SIZE(ab8505_iddet_resources),
1214                 .resources = ab8505_iddet_resources,
1215         },
1216 };
1217
1218 /* Device list for ab8505  */
1219 static const struct mfd_cell ab8505_devs[] = {
1220 #ifdef CONFIG_DEBUG_FS
1221         {
1222                 .name = "ab8500-debug",
1223                 .num_resources = ARRAY_SIZE(ab8500_debug_resources),
1224                 .resources = ab8500_debug_resources,
1225         },
1226 #endif
1227         {
1228                 .name = "ab8500-sysctrl",
1229         },
1230         {
1231                 .name = "ab8500-regulator",
1232         },
1233         {
1234                 .name = "abx500-clk",
1235                 .of_compatible = "stericsson,abx500-clk",
1236         },
1237         {
1238                 .name = "ab8500-gpadc",
1239                 .of_compatible = "stericsson,ab8500-gpadc",
1240                 .num_resources = ARRAY_SIZE(ab8505_gpadc_resources),
1241                 .resources = ab8505_gpadc_resources,
1242         },
1243         {
1244                 .name = "ab8500-rtc",
1245                 .num_resources = ARRAY_SIZE(ab8500_rtc_resources),
1246                 .resources = ab8500_rtc_resources,
1247         },
1248         {
1249                 .name = "ab8500-acc-det",
1250                 .num_resources = ARRAY_SIZE(ab8500_av_acc_detect_resources),
1251                 .resources = ab8500_av_acc_detect_resources,
1252         },
1253         {
1254                 .name = "ab8500-poweron-key",
1255                 .num_resources = ARRAY_SIZE(ab8500_poweronkey_db_resources),
1256                 .resources = ab8500_poweronkey_db_resources,
1257         },
1258         {
1259                 .name = "ab8500-pwm",
1260                 .id = 1,
1261         },
1262         {
1263                 .name = "pinctrl-ab8505",
1264         },
1265         {
1266                 .name = "ab8500-usb",
1267                 .num_resources = ARRAY_SIZE(ab8500_usb_resources),
1268                 .resources = ab8500_usb_resources,
1269         },
1270         {
1271                 .name = "ab8500-codec",
1272         },
1273         {
1274                 .name = "ab-iddet",
1275                 .num_resources = ARRAY_SIZE(ab8505_iddet_resources),
1276                 .resources = ab8505_iddet_resources,
1277         },
1278 };
1279
1280 static const struct mfd_cell ab8540_devs[] = {
1281 #ifdef CONFIG_DEBUG_FS
1282         {
1283                 .name = "ab8500-debug",
1284                 .num_resources = ARRAY_SIZE(ab8500_debug_resources),
1285                 .resources = ab8500_debug_resources,
1286         },
1287 #endif
1288         {
1289                 .name = "ab8500-sysctrl",
1290         },
1291         {
1292                 .name = "ab8500-ext-regulator",
1293         },
1294         {
1295                 .name = "ab8500-regulator",
1296         },
1297         {
1298                 .name = "abx500-clk",
1299                 .of_compatible = "stericsson,abx500-clk",
1300         },
1301         {
1302                 .name = "ab8500-gpadc",
1303                 .of_compatible = "stericsson,ab8500-gpadc",
1304                 .num_resources = ARRAY_SIZE(ab8505_gpadc_resources),
1305                 .resources = ab8505_gpadc_resources,
1306         },
1307         {
1308                 .name = "ab8500-acc-det",
1309                 .num_resources = ARRAY_SIZE(ab8500_av_acc_detect_resources),
1310                 .resources = ab8500_av_acc_detect_resources,
1311         },
1312         {
1313                 .name = "ab8500-poweron-key",
1314                 .num_resources = ARRAY_SIZE(ab8500_poweronkey_db_resources),
1315                 .resources = ab8500_poweronkey_db_resources,
1316         },
1317         {
1318                 .name = "ab8500-pwm",
1319                 .id = 1,
1320         },
1321         {
1322                 .name = "abx500-temp",
1323                 .num_resources = ARRAY_SIZE(ab8500_temp_resources),
1324                 .resources = ab8500_temp_resources,
1325         },
1326         {
1327                 .name = "pinctrl-ab8540",
1328         },
1329         {
1330                 .name = "ab8540-usb",
1331                 .num_resources = ARRAY_SIZE(ab8500_usb_resources),
1332                 .resources = ab8500_usb_resources,
1333         },
1334         {
1335                 .name = "ab8540-codec",
1336         },
1337         {
1338                 .name = "ab-iddet",
1339                 .num_resources = ARRAY_SIZE(ab8505_iddet_resources),
1340                 .resources = ab8505_iddet_resources,
1341         },
1342 };
1343
1344 static const struct mfd_cell ab8540_cut1_devs[] = {
1345         {
1346                 .name = "ab8500-rtc",
1347                 .of_compatible = "stericsson,ab8500-rtc",
1348                 .num_resources = ARRAY_SIZE(ab8500_rtc_resources),
1349                 .resources = ab8500_rtc_resources,
1350         },
1351 };
1352
1353 static const struct mfd_cell ab8540_cut2_devs[] = {
1354         {
1355                 .name = "ab8540-rtc",
1356                 .of_compatible = "stericsson,ab8540-rtc",
1357                 .num_resources = ARRAY_SIZE(ab8540_rtc_resources),
1358                 .resources = ab8540_rtc_resources,
1359         },
1360 };
1361
1362 static ssize_t show_chip_id(struct device *dev,
1363                                 struct device_attribute *attr, char *buf)
1364 {
1365         struct ab8500 *ab8500;
1366
1367         ab8500 = dev_get_drvdata(dev);
1368
1369         return sprintf(buf, "%#x\n", ab8500 ? ab8500->chip_id : -EINVAL);
1370 }
1371
1372 /*
1373  * ab8500 has switched off due to (SWITCH_OFF_STATUS):
1374  * 0x01 Swoff bit programming
1375  * 0x02 Thermal protection activation
1376  * 0x04 Vbat lower then BattOk falling threshold
1377  * 0x08 Watchdog expired
1378  * 0x10 Non presence of 32kHz clock
1379  * 0x20 Battery level lower than power on reset threshold
1380  * 0x40 Power on key 1 pressed longer than 10 seconds
1381  * 0x80 DB8500 thermal shutdown
1382  */
1383 static ssize_t show_switch_off_status(struct device *dev,
1384                                 struct device_attribute *attr, char *buf)
1385 {
1386         int ret;
1387         u8 value;
1388         struct ab8500 *ab8500;
1389
1390         ab8500 = dev_get_drvdata(dev);
1391         ret = get_register_interruptible(ab8500, AB8500_RTC,
1392                 AB8500_SWITCH_OFF_STATUS, &value);
1393         if (ret < 0)
1394                 return ret;
1395         return sprintf(buf, "%#x\n", value);
1396 }
1397
1398 /* use mask and set to override the register turn_on_stat value */
1399 void ab8500_override_turn_on_stat(u8 mask, u8 set)
1400 {
1401         spin_lock(&on_stat_lock);
1402         turn_on_stat_mask = mask;
1403         turn_on_stat_set = set;
1404         spin_unlock(&on_stat_lock);
1405 }
1406
1407 /*
1408  * ab8500 has turned on due to (TURN_ON_STATUS):
1409  * 0x01 PORnVbat
1410  * 0x02 PonKey1dbF
1411  * 0x04 PonKey2dbF
1412  * 0x08 RTCAlarm
1413  * 0x10 MainChDet
1414  * 0x20 VbusDet
1415  * 0x40 UsbIDDetect
1416  * 0x80 Reserved
1417  */
1418 static ssize_t show_turn_on_status(struct device *dev,
1419                                 struct device_attribute *attr, char *buf)
1420 {
1421         int ret;
1422         u8 value;
1423         struct ab8500 *ab8500;
1424
1425         ab8500 = dev_get_drvdata(dev);
1426         ret = get_register_interruptible(ab8500, AB8500_SYS_CTRL1_BLOCK,
1427                 AB8500_TURN_ON_STATUS, &value);
1428         if (ret < 0)
1429                 return ret;
1430
1431         /*
1432          * In L9540, turn_on_status register is not updated correctly if
1433          * the device is rebooted with AC/USB charger connected. Due to
1434          * this, the device boots android instead of entering into charge
1435          * only mode. Read the AC/USB status register to detect the charger
1436          * presence and update the turn on status manually.
1437          */
1438         if (is_ab9540(ab8500)) {
1439                 spin_lock(&on_stat_lock);
1440                 value = (value & turn_on_stat_mask) | turn_on_stat_set;
1441                 spin_unlock(&on_stat_lock);
1442         }
1443
1444         return sprintf(buf, "%#x\n", value);
1445 }
1446
1447 static ssize_t show_turn_on_status_2(struct device *dev,
1448                                 struct device_attribute *attr, char *buf)
1449 {
1450         int ret;
1451         u8 value;
1452         struct ab8500 *ab8500;
1453
1454         ab8500 = dev_get_drvdata(dev);
1455         ret = get_register_interruptible(ab8500, AB8500_SYS_CTRL1_BLOCK,
1456                 AB8505_TURN_ON_STATUS_2, &value);
1457         if (ret < 0)
1458                 return ret;
1459         return sprintf(buf, "%#x\n", (value & 0x1));
1460 }
1461
1462 static ssize_t show_ab9540_dbbrstn(struct device *dev,
1463                                 struct device_attribute *attr, char *buf)
1464 {
1465         struct ab8500 *ab8500;
1466         int ret;
1467         u8 value;
1468
1469         ab8500 = dev_get_drvdata(dev);
1470
1471         ret = get_register_interruptible(ab8500, AB8500_REGU_CTRL2,
1472                 AB9540_MODEM_CTRL2_REG, &value);
1473         if (ret < 0)
1474                 return ret;
1475
1476         return sprintf(buf, "%d\n",
1477                         (value & AB9540_MODEM_CTRL2_SWDBBRSTN_BIT) ? 1 : 0);
1478 }
1479
1480 static ssize_t store_ab9540_dbbrstn(struct device *dev,
1481         struct device_attribute *attr, const char *buf, size_t count)
1482 {
1483         struct ab8500 *ab8500;
1484         int ret = count;
1485         int err;
1486         u8 bitvalues;
1487
1488         ab8500 = dev_get_drvdata(dev);
1489
1490         if (count > 0) {
1491                 switch (buf[0]) {
1492                 case '0':
1493                         bitvalues = 0;
1494                         break;
1495                 case '1':
1496                         bitvalues = AB9540_MODEM_CTRL2_SWDBBRSTN_BIT;
1497                         break;
1498                 default:
1499                         goto exit;
1500                 }
1501
1502                 err = mask_and_set_register_interruptible(ab8500,
1503                         AB8500_REGU_CTRL2, AB9540_MODEM_CTRL2_REG,
1504                         AB9540_MODEM_CTRL2_SWDBBRSTN_BIT, bitvalues);
1505                 if (err)
1506                         dev_info(ab8500->dev,
1507                                 "Failed to set DBBRSTN %c, err %#x\n",
1508                                 buf[0], err);
1509         }
1510
1511 exit:
1512         return ret;
1513 }
1514
1515 static DEVICE_ATTR(chip_id, S_IRUGO, show_chip_id, NULL);
1516 static DEVICE_ATTR(switch_off_status, S_IRUGO, show_switch_off_status, NULL);
1517 static DEVICE_ATTR(turn_on_status, S_IRUGO, show_turn_on_status, NULL);
1518 static DEVICE_ATTR(turn_on_status_2, S_IRUGO, show_turn_on_status_2, NULL);
1519 static DEVICE_ATTR(dbbrstn, S_IRUGO | S_IWUSR,
1520                         show_ab9540_dbbrstn, store_ab9540_dbbrstn);
1521
1522 static struct attribute *ab8500_sysfs_entries[] = {
1523         &dev_attr_chip_id.attr,
1524         &dev_attr_switch_off_status.attr,
1525         &dev_attr_turn_on_status.attr,
1526         NULL,
1527 };
1528
1529 static struct attribute *ab8505_sysfs_entries[] = {
1530         &dev_attr_turn_on_status_2.attr,
1531         NULL,
1532 };
1533
1534 static struct attribute *ab9540_sysfs_entries[] = {
1535         &dev_attr_chip_id.attr,
1536         &dev_attr_switch_off_status.attr,
1537         &dev_attr_turn_on_status.attr,
1538         &dev_attr_dbbrstn.attr,
1539         NULL,
1540 };
1541
1542 static struct attribute_group ab8500_attr_group = {
1543         .attrs  = ab8500_sysfs_entries,
1544 };
1545
1546 static struct attribute_group ab8505_attr_group = {
1547         .attrs  = ab8505_sysfs_entries,
1548 };
1549
1550 static struct attribute_group ab9540_attr_group = {
1551         .attrs  = ab9540_sysfs_entries,
1552 };
1553
1554 static int ab8500_probe(struct platform_device *pdev)
1555 {
1556         static const char *switch_off_status[] = {
1557                 "Swoff bit programming",
1558                 "Thermal protection activation",
1559                 "Vbat lower then BattOk falling threshold",
1560                 "Watchdog expired",
1561                 "Non presence of 32kHz clock",
1562                 "Battery level lower than power on reset threshold",
1563                 "Power on key 1 pressed longer than 10 seconds",
1564                 "DB8500 thermal shutdown"};
1565         static const char *turn_on_status[] = {
1566                 "Battery rising (Vbat)",
1567                 "Power On Key 1 dbF",
1568                 "Power On Key 2 dbF",
1569                 "RTC Alarm",
1570                 "Main Charger Detect",
1571                 "Vbus Detect (USB)",
1572                 "USB ID Detect",
1573                 "UART Factory Mode Detect"};
1574         struct ab8500_platform_data *plat = dev_get_platdata(&pdev->dev);
1575         const struct platform_device_id *platid = platform_get_device_id(pdev);
1576         enum ab8500_version version = AB8500_VERSION_UNDEFINED;
1577         struct device_node *np = pdev->dev.of_node;
1578         struct ab8500 *ab8500;
1579         struct resource *resource;
1580         int ret;
1581         int i;
1582         u8 value;
1583
1584         ab8500 = devm_kzalloc(&pdev->dev, sizeof(*ab8500), GFP_KERNEL);
1585         if (!ab8500)
1586                 return -ENOMEM;
1587
1588         ab8500->dev = &pdev->dev;
1589
1590         resource = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
1591         if (!resource) {
1592                 dev_err(&pdev->dev, "no IRQ resource\n");
1593                 return -ENODEV;
1594         }
1595
1596         ab8500->irq = resource->start;
1597
1598         ab8500->read = ab8500_prcmu_read;
1599         ab8500->write = ab8500_prcmu_write;
1600         ab8500->write_masked = ab8500_prcmu_write_masked;
1601
1602         mutex_init(&ab8500->lock);
1603         mutex_init(&ab8500->irq_lock);
1604         atomic_set(&ab8500->transfer_ongoing, 0);
1605
1606         platform_set_drvdata(pdev, ab8500);
1607
1608         if (platid)
1609                 version = platid->driver_data;
1610
1611         if (version != AB8500_VERSION_UNDEFINED)
1612                 ab8500->version = version;
1613         else {
1614                 ret = get_register_interruptible(ab8500, AB8500_MISC,
1615                         AB8500_IC_NAME_REG, &value);
1616                 if (ret < 0) {
1617                         dev_err(&pdev->dev, "could not probe HW\n");
1618                         return ret;
1619                 }
1620
1621                 ab8500->version = value;
1622         }
1623
1624         ret = get_register_interruptible(ab8500, AB8500_MISC,
1625                 AB8500_REV_REG, &value);
1626         if (ret < 0)
1627                 return ret;
1628
1629         ab8500->chip_id = value;
1630
1631         dev_info(ab8500->dev, "detected chip, %s rev. %1x.%1x\n",
1632                         ab8500_version_str[ab8500->version],
1633                         ab8500->chip_id >> 4,
1634                         ab8500->chip_id & 0x0F);
1635
1636         /* Configure AB8540 */
1637         if (is_ab8540(ab8500)) {
1638                 ab8500->mask_size = AB8540_NUM_IRQ_REGS;
1639                 ab8500->irq_reg_offset = ab8540_irq_regoffset;
1640                 ab8500->it_latchhier_num = AB8540_IT_LATCHHIER_NUM;
1641         } /* Configure AB8500 or AB9540 IRQ */
1642         else if (is_ab9540(ab8500) || is_ab8505(ab8500)) {
1643                 ab8500->mask_size = AB9540_NUM_IRQ_REGS;
1644                 ab8500->irq_reg_offset = ab9540_irq_regoffset;
1645                 ab8500->it_latchhier_num = AB8500_IT_LATCHHIER_NUM;
1646         } else {
1647                 ab8500->mask_size = AB8500_NUM_IRQ_REGS;
1648                 ab8500->irq_reg_offset = ab8500_irq_regoffset;
1649                 ab8500->it_latchhier_num = AB8500_IT_LATCHHIER_NUM;
1650         }
1651         ab8500->mask = devm_kzalloc(&pdev->dev, ab8500->mask_size,
1652                                     GFP_KERNEL);
1653         if (!ab8500->mask)
1654                 return -ENOMEM;
1655         ab8500->oldmask = devm_kzalloc(&pdev->dev, ab8500->mask_size,
1656                                        GFP_KERNEL);
1657         if (!ab8500->oldmask)
1658                 return -ENOMEM;
1659
1660         /*
1661          * ab8500 has switched off due to (SWITCH_OFF_STATUS):
1662          * 0x01 Swoff bit programming
1663          * 0x02 Thermal protection activation
1664          * 0x04 Vbat lower then BattOk falling threshold
1665          * 0x08 Watchdog expired
1666          * 0x10 Non presence of 32kHz clock
1667          * 0x20 Battery level lower than power on reset threshold
1668          * 0x40 Power on key 1 pressed longer than 10 seconds
1669          * 0x80 DB8500 thermal shutdown
1670          */
1671
1672         ret = get_register_interruptible(ab8500, AB8500_RTC,
1673                 AB8500_SWITCH_OFF_STATUS, &value);
1674         if (ret < 0)
1675                 return ret;
1676         dev_info(ab8500->dev, "switch off cause(s) (%#x): ", value);
1677
1678         if (value) {
1679                 for (i = 0; i < ARRAY_SIZE(switch_off_status); i++) {
1680                         if (value & 1)
1681                                 pr_cont(" \"%s\"", switch_off_status[i]);
1682                         value = value >> 1;
1683
1684                 }
1685                 pr_cont("\n");
1686         } else {
1687                 pr_cont(" None\n");
1688         }
1689         ret = get_register_interruptible(ab8500, AB8500_SYS_CTRL1_BLOCK,
1690                 AB8500_TURN_ON_STATUS, &value);
1691         if (ret < 0)
1692                 return ret;
1693         dev_info(ab8500->dev, "turn on reason(s) (%#x): ", value);
1694
1695         if (value) {
1696                 for (i = 0; i < ARRAY_SIZE(turn_on_status); i++) {
1697                         if (value & 1)
1698                                 pr_cont("\"%s\" ", turn_on_status[i]);
1699                         value = value >> 1;
1700                 }
1701                 pr_cont("\n");
1702         } else {
1703                 pr_cont("None\n");
1704         }
1705
1706         if (plat && plat->init)
1707                 plat->init(ab8500);
1708
1709         if (is_ab9540(ab8500)) {
1710                 ret = get_register_interruptible(ab8500, AB8500_CHARGER,
1711                         AB8500_CH_USBCH_STAT1_REG, &value);
1712                 if (ret < 0)
1713                         return ret;
1714                 if ((value & VBUS_DET_DBNC1) && (value & VBUS_DET_DBNC100))
1715                         ab8500_override_turn_on_stat(~AB8500_POW_KEY_1_ON,
1716                                                      AB8500_VBUS_DET);
1717         }
1718
1719         /* Clear and mask all interrupts */
1720         for (i = 0; i < ab8500->mask_size; i++) {
1721                 /*
1722                  * Interrupt register 12 doesn't exist prior to AB8500 version
1723                  * 2.0
1724                  */
1725                 if (ab8500->irq_reg_offset[i] == 11 &&
1726                                 is_ab8500_1p1_or_earlier(ab8500))
1727                         continue;
1728
1729                 if (ab8500->irq_reg_offset[i] < 0)
1730                         continue;
1731
1732                 get_register_interruptible(ab8500, AB8500_INTERRUPT,
1733                         AB8500_IT_LATCH1_REG + ab8500->irq_reg_offset[i],
1734                         &value);
1735                 set_register_interruptible(ab8500, AB8500_INTERRUPT,
1736                         AB8500_IT_MASK1_REG + ab8500->irq_reg_offset[i], 0xff);
1737         }
1738
1739         ret = abx500_register_ops(ab8500->dev, &ab8500_ops);
1740         if (ret)
1741                 return ret;
1742
1743         for (i = 0; i < ab8500->mask_size; i++)
1744                 ab8500->mask[i] = ab8500->oldmask[i] = 0xff;
1745
1746         ret = ab8500_irq_init(ab8500, np);
1747         if (ret)
1748                 return ret;
1749
1750         ret = devm_request_threaded_irq(&pdev->dev, ab8500->irq, NULL,
1751                         ab8500_hierarchical_irq,
1752                         IRQF_ONESHOT | IRQF_NO_SUSPEND,
1753                         "ab8500", ab8500);
1754         if (ret)
1755                 return ret;
1756
1757 #ifdef CONFIG_DEBUG_FS
1758         /* Pass to debugfs */
1759         ab8500_debug_resources[0].start = ab8500->irq;
1760         ab8500_debug_resources[0].end = ab8500->irq;
1761 #endif
1762
1763         if (is_ab9540(ab8500))
1764                 ret = mfd_add_devices(ab8500->dev, 0, ab9540_devs,
1765                                 ARRAY_SIZE(ab9540_devs), NULL,
1766                                 0, ab8500->domain);
1767         else if (is_ab8540(ab8500)) {
1768                 ret = mfd_add_devices(ab8500->dev, 0, ab8540_devs,
1769                               ARRAY_SIZE(ab8540_devs), NULL,
1770                               0, ab8500->domain);
1771                 if (ret)
1772                         return ret;
1773
1774                 if (is_ab8540_1p2_or_earlier(ab8500))
1775                         ret = mfd_add_devices(ab8500->dev, 0, ab8540_cut1_devs,
1776                               ARRAY_SIZE(ab8540_cut1_devs), NULL,
1777                               0, ab8500->domain);
1778                 else /* ab8540 >= cut2 */
1779                         ret = mfd_add_devices(ab8500->dev, 0, ab8540_cut2_devs,
1780                               ARRAY_SIZE(ab8540_cut2_devs), NULL,
1781                               0, ab8500->domain);
1782         } else if (is_ab8505(ab8500))
1783                 ret = mfd_add_devices(ab8500->dev, 0, ab8505_devs,
1784                               ARRAY_SIZE(ab8505_devs), NULL,
1785                               0, ab8500->domain);
1786         else
1787                 ret = mfd_add_devices(ab8500->dev, 0, ab8500_devs,
1788                                 ARRAY_SIZE(ab8500_devs), NULL,
1789                                 0, ab8500->domain);
1790         if (ret)
1791                 return ret;
1792
1793         if (!no_bm) {
1794                 /* Add battery management devices */
1795                 ret = mfd_add_devices(ab8500->dev, 0, ab8500_bm_devs,
1796                                       ARRAY_SIZE(ab8500_bm_devs), NULL,
1797                                       0, ab8500->domain);
1798                 if (ret)
1799                         dev_err(ab8500->dev, "error adding bm devices\n");
1800         }
1801
1802         if (((is_ab8505(ab8500) || is_ab9540(ab8500)) &&
1803                         ab8500->chip_id >= AB8500_CUT2P0) || is_ab8540(ab8500))
1804                 ret = sysfs_create_group(&ab8500->dev->kobj,
1805                                         &ab9540_attr_group);
1806         else
1807                 ret = sysfs_create_group(&ab8500->dev->kobj,
1808                                         &ab8500_attr_group);
1809
1810         if ((is_ab8505(ab8500) || is_ab9540(ab8500)) &&
1811                         ab8500->chip_id >= AB8500_CUT2P0)
1812                 ret = sysfs_create_group(&ab8500->dev->kobj,
1813                                          &ab8505_attr_group);
1814
1815         if (ret)
1816                 dev_err(ab8500->dev, "error creating sysfs entries\n");
1817
1818         return ret;
1819 }
1820
1821 static int ab8500_remove(struct platform_device *pdev)
1822 {
1823         struct ab8500 *ab8500 = platform_get_drvdata(pdev);
1824
1825         if (((is_ab8505(ab8500) || is_ab9540(ab8500)) &&
1826                         ab8500->chip_id >= AB8500_CUT2P0) || is_ab8540(ab8500))
1827                 sysfs_remove_group(&ab8500->dev->kobj, &ab9540_attr_group);
1828         else
1829                 sysfs_remove_group(&ab8500->dev->kobj, &ab8500_attr_group);
1830
1831         if ((is_ab8505(ab8500) || is_ab9540(ab8500)) &&
1832                         ab8500->chip_id >= AB8500_CUT2P0)
1833                 sysfs_remove_group(&ab8500->dev->kobj, &ab8505_attr_group);
1834
1835         mfd_remove_devices(ab8500->dev);
1836
1837         return 0;
1838 }
1839
1840 static const struct platform_device_id ab8500_id[] = {
1841         { "ab8500-core", AB8500_VERSION_AB8500 },
1842         { "ab8505-i2c", AB8500_VERSION_AB8505 },
1843         { "ab9540-i2c", AB8500_VERSION_AB9540 },
1844         { "ab8540-i2c", AB8500_VERSION_AB8540 },
1845         { }
1846 };
1847
1848 static struct platform_driver ab8500_core_driver = {
1849         .driver = {
1850                 .name = "ab8500-core",
1851         },
1852         .probe  = ab8500_probe,
1853         .remove = ab8500_remove,
1854         .id_table = ab8500_id,
1855 };
1856
1857 static int __init ab8500_core_init(void)
1858 {
1859         return platform_driver_register(&ab8500_core_driver);
1860 }
1861
1862 static void __exit ab8500_core_exit(void)
1863 {
1864         platform_driver_unregister(&ab8500_core_driver);
1865 }
1866 core_initcall(ab8500_core_init);
1867 module_exit(ab8500_core_exit);
1868
1869 MODULE_AUTHOR("Mattias Wallin, Srinidhi Kasagar, Rabin Vincent");
1870 MODULE_DESCRIPTION("AB8500 MFD core");
1871 MODULE_LICENSE("GPL v2");