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, 23,
 152         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 && offset <= AB9540_INT_GPIO54R)
 419                         ab8500->mask[index + 1] &= ~mask;
 420                 else if (offset == AB8540_INT_GPIO43R || offset == AB8540_INT_GPIO44R)
 421                         /* Here the falling IRQ is one bit lower */
 422                         ab8500->mask[index] &= ~(mask << 1);
 423                 else
 424                         ab8500->mask[index] &= ~mask;
 425         } else {
 426                 /* Satisfies the case where type is not set. */
 427                 ab8500->mask[index] &= ~mask;
 428         }
 429 }
 430
 431 static int ab8500_irq_set_type(struct irq_data *data, unsigned int type)
 432 {
 433         return 0;
 434 }
 435
 436 static struct irq_chip ab8500_irq_chip = {
 437         .name                   = "ab8500",
 438         .irq_bus_lock           = ab8500_irq_lock,
 439         .irq_bus_sync_unlock    = ab8500_irq_sync_unlock,
 440         .irq_mask               = ab8500_irq_mask,
 441         .irq_disable            = ab8500_irq_mask,
 442         .irq_unmask             = ab8500_irq_unmask,
 443         .irq_set_type           = ab8500_irq_set_type,
 444 };
 445
 446 static void update_latch_offset(u8 *offset, int i)
 447 {
 448         /* Fix inconsistent ITFromLatch25 bit mapping... */
 449         if (unlikely(*offset == 17))
 450                         *offset = 24;
 451         /* Fix inconsistent ab8540 bit mapping... */
 452         if (unlikely(*offset == 16))
 453                         *offset = 25;
 454         if ((i==3) && (*offset >= 24))
 455                         *offset += 2;
 456 }
 457
 458 static int ab8500_handle_hierarchical_line(struct ab8500 *ab8500,
 459                                         int latch_offset, u8 latch_val)
 460 {
 461         int int_bit, line, i;
 462
 463         for (i = 0; i < ab8500->mask_size; i++)
 464                 if (ab8500->irq_reg_offset[i] == latch_offset)
 465                         break;
 466
 467         if (i >= ab8500->mask_size) {
 468                 dev_err(ab8500->dev, "Register offset 0x%2x not declared\n",
 469                                 latch_offset);
 470                 return -ENXIO;
 471         }
 472
 473         /* ignore masked out interrupts */
 474         latch_val &= ~ab8500->mask[i];
 475
 476         while (latch_val) {
 477                 int_bit = __ffs(latch_val);
 478                 line = (i << 3) + int_bit;
 479                 latch_val &= ~(1 << int_bit);
 480
 481                 /*
 482                  * This handles the falling edge hwirqs from the GPIO
 483                  * lines. Route them back to the line registered for the
 484                  * rising IRQ, as this is merely a flag for the same IRQ
 485                  * in linux terms.
 486                  */
 487                 if (line >= AB8500_INT_GPIO6F && line <= AB8500_INT_GPIO41F)
 488                         line -= 16;
 489                 if (line >= AB9540_INT_GPIO50F && line <= AB9540_INT_GPIO54F)
 490                         line -= 8;
 491                 if (line == AB8540_INT_GPIO43F || line == AB8540_INT_GPIO44F)
 492                         line += 1;
 493
 494                 handle_nested_irq(ab8500->irq_base + line);
 495         }
 496
 497         return 0;
 498 }
 499
 500 static int ab8500_handle_hierarchical_latch(struct ab8500 *ab8500,
 501                                         int hier_offset, u8 hier_val)
 502 {
 503         int latch_bit, status;
 504         u8 latch_offset, latch_val;
 505
 506         do {
 507                 latch_bit = __ffs(hier_val);
 508                 latch_offset = (hier_offset << 3) + latch_bit;
 509
 510                 update_latch_offset(&latch_offset, hier_offset);
 511
 512                 status = get_register_interruptible(ab8500,
 513                                 AB8500_INTERRUPT,
 514                                 AB8500_IT_LATCH1_REG + latch_offset,
 515                                 &latch_val);
 516                 if (status < 0 || latch_val == 0)
 517                         goto discard;
 518
 519                 status = ab8500_handle_hierarchical_line(ab8500,
 520                                 latch_offset, latch_val);
 521                 if (status < 0)
 522                         return status;
 523 discard:
 524                 hier_val &= ~(1 << latch_bit);
 525         } while (hier_val);
 526
 527         return 0;
 528 }
 529
 530 static irqreturn_t ab8500_hierarchical_irq(int irq, void *dev)
 531 {
 532         struct ab8500 *ab8500 = dev;
 533         u8 i;
 534
 535         dev_vdbg(ab8500->dev, "interrupt\n");
 536
 537         /*  Hierarchical interrupt version */
 538         for (i = 0; i < (ab8500->it_latchhier_num); i++) {
 539                 int status;
 540                 u8 hier_val;
 541
 542                 status = get_register_interruptible(ab8500, AB8500_INTERRUPT,
 543                         AB8500_IT_LATCHHIER1_REG + i, &hier_val);
 544                 if (status < 0 || hier_val == 0)
 545                         continue;
 546
 547                 status = ab8500_handle_hierarchical_latch(ab8500, i, hier_val);
 548                 if (status < 0)
 549                         break;
 550         }
 551         return IRQ_HANDLED;
 552 }
 553
 554 static int ab8500_irq_map(struct irq_domain *d, unsigned int virq,
 555                                 irq_hw_number_t hwirq)
 556 {
 557         struct ab8500 *ab8500 = d->host_data;
 558
 559         if (!ab8500)
 560                 return -EINVAL;
 561
 562         irq_set_chip_data(virq, ab8500);
 563         irq_set_chip_and_handler(virq, &ab8500_irq_chip,
 564                                 handle_simple_irq);
 565         irq_set_nested_thread(virq, 1);
 566 #ifdef CONFIG_ARM
 567         set_irq_flags(virq, IRQF_VALID);
 568 #else
 569         irq_set_noprobe(virq);
 570 #endif
 571
 572         return 0;
 573 }
 574
 575 static struct irq_domain_ops ab8500_irq_ops = {
 576         .map    = ab8500_irq_map,
 577         .xlate  = irq_domain_xlate_twocell,
 578 };
 579
 580 static int ab8500_irq_init(struct ab8500 *ab8500, struct device_node *np)
 581 {
 582         int num_irqs;
 583
 584         if (is_ab8540(ab8500))
 585                 num_irqs = AB8540_NR_IRQS;
 586         else if (is_ab9540(ab8500))
 587                 num_irqs = AB9540_NR_IRQS;
 588         else if (is_ab8505(ab8500))
 589                 num_irqs = AB8505_NR_IRQS;
 590         else
 591                 num_irqs = AB8500_NR_IRQS;
 592
 593         /* If ->irq_base is zero this will give a linear mapping */
 594         ab8500->domain = irq_domain_add_simple(NULL,
 595                         num_irqs, ab8500->irq_base,
 596                         &ab8500_irq_ops, ab8500);
 597
 598         if (!ab8500->domain) {
 599                 dev_err(ab8500->dev, "Failed to create irqdomain\n");
 600                 return -ENOSYS;
 601         }
 602
 603         return 0;
 604 }
 605
 606 int ab8500_suspend(struct ab8500 *ab8500)
 607 {
 608         if (atomic_read(&ab8500->transfer_ongoing))
 609                 return -EINVAL;
 610         else
 611                 return 0;
 612 }
 613
 614 static struct resource ab8500_gpadc_resources[] = {
 615         {
 616                 .name   = "HW_CONV_END",
 617                 .start  = AB8500_INT_GP_HW_ADC_CONV_END,
 618                 .end    = AB8500_INT_GP_HW_ADC_CONV_END,
 619                 .flags  = IORESOURCE_IRQ,
 620         },
 621         {
 622                 .name   = "SW_CONV_END",
 623                 .start  = AB8500_INT_GP_SW_ADC_CONV_END,
 624                 .end    = AB8500_INT_GP_SW_ADC_CONV_END,
 625                 .flags  = IORESOURCE_IRQ,
 626         },
 627 };
 628
 629 static struct resource ab8505_gpadc_resources[] = {
 630         {
 631                 .name   = "SW_CONV_END",
 632                 .start  = AB8500_INT_GP_SW_ADC_CONV_END,
 633                 .end    = AB8500_INT_GP_SW_ADC_CONV_END,
 634                 .flags  = IORESOURCE_IRQ,
 635         },
 636 };
 637
 638 static struct resource ab8500_rtc_resources[] = {
 639         {
 640                 .name   = "60S",
 641                 .start  = AB8500_INT_RTC_60S,
 642                 .end    = AB8500_INT_RTC_60S,
 643                 .flags  = IORESOURCE_IRQ,
 644         },
 645         {
 646                 .name   = "ALARM",
 647                 .start  = AB8500_INT_RTC_ALARM,
 648                 .end    = AB8500_INT_RTC_ALARM,
 649                 .flags  = IORESOURCE_IRQ,
 650         },
 651 };
 652
 653 static struct resource ab8500_poweronkey_db_resources[] = {
 654         {
 655                 .name   = "ONKEY_DBF",
 656                 .start  = AB8500_INT_PON_KEY1DB_F,
 657                 .end    = AB8500_INT_PON_KEY1DB_F,
 658                 .flags  = IORESOURCE_IRQ,
 659         },
 660         {
 661                 .name   = "ONKEY_DBR",
 662                 .start  = AB8500_INT_PON_KEY1DB_R,
 663                 .end    = AB8500_INT_PON_KEY1DB_R,
 664                 .flags  = IORESOURCE_IRQ,
 665         },
 666 };
 667
 668 static struct resource ab8500_av_acc_detect_resources[] = {
 669         {
 670                .name = "ACC_DETECT_1DB_F",
 671                .start = AB8500_INT_ACC_DETECT_1DB_F,
 672                .end = AB8500_INT_ACC_DETECT_1DB_F,
 673                .flags = IORESOURCE_IRQ,
 674         },
 675         {
 676                .name = "ACC_DETECT_1DB_R",
 677                .start = AB8500_INT_ACC_DETECT_1DB_R,
 678                .end = AB8500_INT_ACC_DETECT_1DB_R,
 679                .flags = IORESOURCE_IRQ,
 680         },
 681         {
 682                .name = "ACC_DETECT_21DB_F",
 683                .start = AB8500_INT_ACC_DETECT_21DB_F,
 684                .end = AB8500_INT_ACC_DETECT_21DB_F,
 685                .flags = IORESOURCE_IRQ,
 686         },
 687         {
 688                .name = "ACC_DETECT_21DB_R",
 689                .start = AB8500_INT_ACC_DETECT_21DB_R,
 690                .end = AB8500_INT_ACC_DETECT_21DB_R,
 691                .flags = IORESOURCE_IRQ,
 692         },
 693         {
 694                .name = "ACC_DETECT_22DB_F",
 695                .start = AB8500_INT_ACC_DETECT_22DB_F,
 696                .end = AB8500_INT_ACC_DETECT_22DB_F,
 697                .flags = IORESOURCE_IRQ,
 698         },
 699         {
 700                .name = "ACC_DETECT_22DB_R",
 701                .start = AB8500_INT_ACC_DETECT_22DB_R,
 702                .end = AB8500_INT_ACC_DETECT_22DB_R,
 703                .flags = IORESOURCE_IRQ,
 704         },
 705 };
 706
 707 static struct resource ab8500_charger_resources[] = {
 708         {
 709                 .name = "MAIN_CH_UNPLUG_DET",
 710                 .start = AB8500_INT_MAIN_CH_UNPLUG_DET,
 711                 .end = AB8500_INT_MAIN_CH_UNPLUG_DET,
 712                 .flags = IORESOURCE_IRQ,
 713         },
 714         {
 715                 .name = "MAIN_CHARGE_PLUG_DET",
 716                 .start = AB8500_INT_MAIN_CH_PLUG_DET,
 717                 .end = AB8500_INT_MAIN_CH_PLUG_DET,
 718                 .flags = IORESOURCE_IRQ,
 719         },
 720         {
 721                 .name = "VBUS_DET_R",
 722                 .start = AB8500_INT_VBUS_DET_R,
 723                 .end = AB8500_INT_VBUS_DET_R,
 724                 .flags = IORESOURCE_IRQ,
 725         },
 726         {
 727                 .name = "VBUS_DET_F",
 728                 .start = AB8500_INT_VBUS_DET_F,
 729                 .end = AB8500_INT_VBUS_DET_F,
 730                 .flags = IORESOURCE_IRQ,
 731         },
 732         {
 733                 .name = "USB_LINK_STATUS",
 734                 .start = AB8500_INT_USB_LINK_STATUS,
 735                 .end = AB8500_INT_USB_LINK_STATUS,
 736                 .flags = IORESOURCE_IRQ,
 737         },
 738         {
 739                 .name = "VBUS_OVV",
 740                 .start = AB8500_INT_VBUS_OVV,
 741                 .end = AB8500_INT_VBUS_OVV,
 742                 .flags = IORESOURCE_IRQ,
 743         },
 744         {
 745                 .name = "USB_CH_TH_PROT_R",
 746                 .start = AB8500_INT_USB_CH_TH_PROT_R,
 747                 .end = AB8500_INT_USB_CH_TH_PROT_R,
 748                 .flags = IORESOURCE_IRQ,
 749         },
 750         {
 751                 .name = "USB_CH_TH_PROT_F",
 752                 .start = AB8500_INT_USB_CH_TH_PROT_F,
 753                 .end = AB8500_INT_USB_CH_TH_PROT_F,
 754                 .flags = IORESOURCE_IRQ,
 755         },
 756         {
 757                 .name = "MAIN_EXT_CH_NOT_OK",
 758                 .start = AB8500_INT_MAIN_EXT_CH_NOT_OK,
 759                 .end = AB8500_INT_MAIN_EXT_CH_NOT_OK,
 760                 .flags = IORESOURCE_IRQ,
 761         },
 762         {
 763                 .name = "MAIN_CH_TH_PROT_R",
 764                 .start = AB8500_INT_MAIN_CH_TH_PROT_R,
 765                 .end = AB8500_INT_MAIN_CH_TH_PROT_R,
 766                 .flags = IORESOURCE_IRQ,
 767         },
 768         {
 769                 .name = "MAIN_CH_TH_PROT_F",
 770                 .start = AB8500_INT_MAIN_CH_TH_PROT_F,
 771                 .end = AB8500_INT_MAIN_CH_TH_PROT_F,
 772                 .flags = IORESOURCE_IRQ,
 773         },
 774         {
 775                 .name = "USB_CHARGER_NOT_OKR",
 776                 .start = AB8500_INT_USB_CHARGER_NOT_OKR,
 777                 .end = AB8500_INT_USB_CHARGER_NOT_OKR,
 778                 .flags = IORESOURCE_IRQ,
 779         },
 780         {
 781                 .name = "CH_WD_EXP",
 782                 .start = AB8500_INT_CH_WD_EXP,
 783                 .end = AB8500_INT_CH_WD_EXP,
 784                 .flags = IORESOURCE_IRQ,
 785         },
 786         {
 787                 .name = "VBUS_CH_DROP_END",
 788                 .start = AB8500_INT_VBUS_CH_DROP_END,
 789                 .end = AB8500_INT_VBUS_CH_DROP_END,
 790                 .flags = IORESOURCE_IRQ,
 791         },
 792 };
 793
 794 static struct resource ab8500_btemp_resources[] = {
 795         {
 796                 .name = "BAT_CTRL_INDB",
 797                 .start = AB8500_INT_BAT_CTRL_INDB,
 798                 .end = AB8500_INT_BAT_CTRL_INDB,
 799                 .flags = IORESOURCE_IRQ,
 800         },
 801         {
 802                 .name = "BTEMP_LOW",
 803                 .start = AB8500_INT_BTEMP_LOW,
 804                 .end = AB8500_INT_BTEMP_LOW,
 805                 .flags = IORESOURCE_IRQ,
 806         },
 807         {
 808                 .name = "BTEMP_HIGH",
 809                 .start = AB8500_INT_BTEMP_HIGH,
 810                 .end = AB8500_INT_BTEMP_HIGH,
 811                 .flags = IORESOURCE_IRQ,
 812         },
 813         {
 814                 .name = "BTEMP_LOW_MEDIUM",
 815                 .start = AB8500_INT_BTEMP_LOW_MEDIUM,
 816                 .end = AB8500_INT_BTEMP_LOW_MEDIUM,
 817                 .flags = IORESOURCE_IRQ,
 818         },
 819         {
 820                 .name = "BTEMP_MEDIUM_HIGH",
 821                 .start = AB8500_INT_BTEMP_MEDIUM_HIGH,
 822                 .end = AB8500_INT_BTEMP_MEDIUM_HIGH,
 823                 .flags = IORESOURCE_IRQ,
 824         },
 825 };
 826
 827 static struct resource ab8500_fg_resources[] = {
 828         {
 829                 .name = "NCONV_ACCU",
 830                 .start = AB8500_INT_CCN_CONV_ACC,
 831                 .end = AB8500_INT_CCN_CONV_ACC,
 832                 .flags = IORESOURCE_IRQ,
 833         },
 834         {
 835                 .name = "BATT_OVV",
 836                 .start = AB8500_INT_BATT_OVV,
 837                 .end = AB8500_INT_BATT_OVV,
 838                 .flags = IORESOURCE_IRQ,
 839         },
 840         {
 841                 .name = "LOW_BAT_F",
 842                 .start = AB8500_INT_LOW_BAT_F,
 843                 .end = AB8500_INT_LOW_BAT_F,
 844                 .flags = IORESOURCE_IRQ,
 845         },
 846         {
 847                 .name = "LOW_BAT_R",
 848                 .start = AB8500_INT_LOW_BAT_R,
 849                 .end = AB8500_INT_LOW_BAT_R,
 850                 .flags = IORESOURCE_IRQ,
 851         },
 852         {
 853                 .name = "CC_INT_CALIB",
 854                 .start = AB8500_INT_CC_INT_CALIB,
 855                 .end = AB8500_INT_CC_INT_CALIB,
 856                 .flags = IORESOURCE_IRQ,
 857         },
 858         {
 859                 .name = "CCEOC",
 860                 .start = AB8500_INT_CCEOC,
 861                 .end = AB8500_INT_CCEOC,
 862                 .flags = IORESOURCE_IRQ,
 863         },
 864 };
 865
 866 static struct resource ab8500_chargalg_resources[] = {};
 867
 868 #ifdef CONFIG_DEBUG_FS
 869 static struct resource ab8500_debug_resources[] = {
 870         {
 871                 .name   = "IRQ_AB8500",
 872                 /*
 873                  * Number will be filled in. NOTE: this is deliberately
 874                  * not flagged as an IRQ in ordet to avoid remapping using
 875                  * the irqdomain in the MFD core, so that this IRQ passes
 876                  * unremapped to the debug code.
 877                  */
 878         },
 879         {
 880                 .name   = "IRQ_FIRST",
 881                 .start  = AB8500_INT_MAIN_EXT_CH_NOT_OK,
 882                 .end    = AB8500_INT_MAIN_EXT_CH_NOT_OK,
 883                 .flags  = IORESOURCE_IRQ,
 884         },
 885         {
 886                 .name   = "IRQ_LAST",
 887                 .start  = AB8500_INT_XTAL32K_KO,
 888                 .end    = AB8500_INT_XTAL32K_KO,
 889                 .flags  = IORESOURCE_IRQ,
 890         },
 891 };
 892 #endif
 893
 894 static struct resource ab8500_usb_resources[] = {
 895         {
 896                 .name = "ID_WAKEUP_R",
 897                 .start = AB8500_INT_ID_WAKEUP_R,
 898                 .end = AB8500_INT_ID_WAKEUP_R,
 899                 .flags = IORESOURCE_IRQ,
 900         },
 901         {
 902                 .name = "ID_WAKEUP_F",
 903                 .start = AB8500_INT_ID_WAKEUP_F,
 904                 .end = AB8500_INT_ID_WAKEUP_F,
 905                 .flags = IORESOURCE_IRQ,
 906         },
 907         {
 908                 .name = "VBUS_DET_F",
 909                 .start = AB8500_INT_VBUS_DET_F,
 910                 .end = AB8500_INT_VBUS_DET_F,
 911                 .flags = IORESOURCE_IRQ,
 912         },
 913         {
 914                 .name = "VBUS_DET_R",
 915                 .start = AB8500_INT_VBUS_DET_R,
 916                 .end = AB8500_INT_VBUS_DET_R,
 917                 .flags = IORESOURCE_IRQ,
 918         },
 919         {
 920                 .name = "USB_LINK_STATUS",
 921                 .start = AB8500_INT_USB_LINK_STATUS,
 922                 .end = AB8500_INT_USB_LINK_STATUS,
 923                 .flags = IORESOURCE_IRQ,
 924         },
 925         {
 926                 .name = "USB_ADP_PROBE_PLUG",
 927                 .start = AB8500_INT_ADP_PROBE_PLUG,
 928                 .end = AB8500_INT_ADP_PROBE_PLUG,
 929                 .flags = IORESOURCE_IRQ,
 930         },
 931         {
 932                 .name = "USB_ADP_PROBE_UNPLUG",
 933                 .start = AB8500_INT_ADP_PROBE_UNPLUG,
 934                 .end = AB8500_INT_ADP_PROBE_UNPLUG,
 935                 .flags = IORESOURCE_IRQ,
 936         },
 937 };
 938
 939 static struct resource ab8505_iddet_resources[] = {
 940         {
 941                 .name  = "KeyDeglitch",
 942                 .start = AB8505_INT_KEYDEGLITCH,
 943                 .end   = AB8505_INT_KEYDEGLITCH,
 944                 .flags = IORESOURCE_IRQ,
 945         },
 946         {
 947                 .name  = "KP",
 948                 .start = AB8505_INT_KP,
 949                 .end   = AB8505_INT_KP,
 950                 .flags = IORESOURCE_IRQ,
 951         },
 952         {
 953                 .name  = "IKP",
 954                 .start = AB8505_INT_IKP,
 955                 .end   = AB8505_INT_IKP,
 956                 .flags = IORESOURCE_IRQ,
 957         },
 958         {
 959                 .name  = "IKR",
 960                 .start = AB8505_INT_IKR,
 961                 .end   = AB8505_INT_IKR,
 962                 .flags = IORESOURCE_IRQ,
 963         },
 964         {
 965                 .name  = "KeyStuck",
 966                 .start = AB8505_INT_KEYSTUCK,
 967                 .end   = AB8505_INT_KEYSTUCK,
 968                 .flags = IORESOURCE_IRQ,
 969         },
 970         {
 971                 .name = "VBUS_DET_R",
 972                 .start = AB8500_INT_VBUS_DET_R,
 973                 .end = AB8500_INT_VBUS_DET_R,
 974                 .flags = IORESOURCE_IRQ,
 975         },
 976         {
 977                 .name = "VBUS_DET_F",
 978                 .start = AB8500_INT_VBUS_DET_F,
 979                 .end = AB8500_INT_VBUS_DET_F,
 980                 .flags = IORESOURCE_IRQ,
 981         },
 982         {
 983                 .name = "ID_DET_PLUGR",
 984                 .start = AB8500_INT_ID_DET_PLUGR,
 985                 .end = AB8500_INT_ID_DET_PLUGR,
 986                 .flags = IORESOURCE_IRQ,
 987         },
 988         {
 989                 .name = "ID_DET_PLUGF",
 990                 .start = AB8500_INT_ID_DET_PLUGF,
 991                 .end = AB8500_INT_ID_DET_PLUGF,
 992                 .flags = IORESOURCE_IRQ,
 993         },
 994 };
 995
 996 static struct resource ab8500_temp_resources[] = {
 997         {
 998                 .name  = "ABX500_TEMP_WARM",
 999                 .start = AB8500_INT_TEMP_WARM,
1000                 .end   = AB8500_INT_TEMP_WARM,
1001                 .flags = IORESOURCE_IRQ,
1002         },
1003 };
1004
1005 static struct mfd_cell ab8500_bm_devs[] = {
1006         {
1007                 .name = "ab8500-charger",
1008                 .of_compatible = "stericsson,ab8500-charger",
1009                 .num_resources = ARRAY_SIZE(ab8500_charger_resources),
1010                 .resources = ab8500_charger_resources,
1011                 .platform_data = &ab8500_bm_data,
1012                 .pdata_size = sizeof(ab8500_bm_data),
1013         },
1014         {
1015                 .name = "ab8500-btemp",
1016                 .of_compatible = "stericsson,ab8500-btemp",
1017                 .num_resources = ARRAY_SIZE(ab8500_btemp_resources),
1018                 .resources = ab8500_btemp_resources,
1019                 .platform_data = &ab8500_bm_data,
1020                 .pdata_size = sizeof(ab8500_bm_data),
1021         },
1022         {
1023                 .name = "ab8500-fg",
1024                 .of_compatible = "stericsson,ab8500-fg",
1025                 .num_resources = ARRAY_SIZE(ab8500_fg_resources),
1026                 .resources = ab8500_fg_resources,
1027                 .platform_data = &ab8500_bm_data,
1028                 .pdata_size = sizeof(ab8500_bm_data),
1029         },
1030         {
1031                 .name = "ab8500-chargalg",
1032                 .of_compatible = "stericsson,ab8500-chargalg",
1033                 .num_resources = ARRAY_SIZE(ab8500_chargalg_resources),
1034                 .resources = ab8500_chargalg_resources,
1035                 .platform_data = &ab8500_bm_data,
1036                 .pdata_size = sizeof(ab8500_bm_data),
1037         },
1038 };
1039
1040 static struct mfd_cell ab8500_devs[] = {
1041 #ifdef CONFIG_DEBUG_FS
1042         {
1043                 .name = "ab8500-debug",
1044                 .of_compatible = "stericsson,ab8500-debug",
1045                 .num_resources = ARRAY_SIZE(ab8500_debug_resources),
1046                 .resources = ab8500_debug_resources,
1047         },
1048 #endif
1049         {
1050                 .name = "ab8500-sysctrl",
1051                 .of_compatible = "stericsson,ab8500-sysctrl",
1052         },
1053         {
1054                 .name = "ab8500-regulator",
1055                 .of_compatible = "stericsson,ab8500-regulator",
1056         },
1057         {
1058                 .name = "abx500-clk",
1059                 .of_compatible = "stericsson,abx500-clk",
1060         },
1061         {
1062                 .name = "ab8500-gpadc",
1063                 .of_compatible = "stericsson,ab8500-gpadc",
1064                 .num_resources = ARRAY_SIZE(ab8500_gpadc_resources),
1065                 .resources = ab8500_gpadc_resources,
1066         },
1067         {
1068                 .name = "ab8500-rtc",
1069                 .of_compatible = "stericsson,ab8500-rtc",
1070                 .num_resources = ARRAY_SIZE(ab8500_rtc_resources),
1071                 .resources = ab8500_rtc_resources,
1072         },
1073         {
1074                 .name = "ab8500-acc-det",
1075                 .of_compatible = "stericsson,ab8500-acc-det",
1076                 .num_resources = ARRAY_SIZE(ab8500_av_acc_detect_resources),
1077                 .resources = ab8500_av_acc_detect_resources,
1078         },
1079         {
1080
1081                 .name = "ab8500-poweron-key",
1082                 .of_compatible = "stericsson,ab8500-poweron-key",
1083                 .num_resources = ARRAY_SIZE(ab8500_poweronkey_db_resources),
1084                 .resources = ab8500_poweronkey_db_resources,
1085         },
1086         {
1087                 .name = "ab8500-pwm",
1088                 .of_compatible = "stericsson,ab8500-pwm",
1089                 .id = 1,
1090         },
1091         {
1092                 .name = "ab8500-pwm",
1093                 .of_compatible = "stericsson,ab8500-pwm",
1094                 .id = 2,
1095         },
1096         {
1097                 .name = "ab8500-pwm",
1098                 .of_compatible = "stericsson,ab8500-pwm",
1099                 .id = 3,
1100         },
1101         {
1102                 .name = "ab8500-leds",
1103                 .of_compatible = "stericsson,ab8500-leds",
1104         },
1105         {
1106                 .name = "ab8500-denc",
1107                 .of_compatible = "stericsson,ab8500-denc",
1108         },
1109         {
1110                 .name = "pinctrl-ab8500",
1111                 .of_compatible = "stericsson,ab8500-gpio",
1112         },
1113         {
1114                 .name = "abx500-temp",
1115                 .of_compatible = "stericsson,abx500-temp",
1116                 .num_resources = ARRAY_SIZE(ab8500_temp_resources),
1117                 .resources = ab8500_temp_resources,
1118         },
1119         {
1120                 .name = "ab8500-usb",
1121                 .of_compatible = "stericsson,ab8500-usb",
1122                 .num_resources = ARRAY_SIZE(ab8500_usb_resources),
1123                 .resources = ab8500_usb_resources,
1124         },
1125         {
1126                 .name = "ab8500-codec",
1127         },
1128 };
1129
1130 static struct mfd_cell ab9540_devs[] = {
1131 #ifdef CONFIG_DEBUG_FS
1132         {
1133                 .name = "ab8500-debug",
1134                 .num_resources = ARRAY_SIZE(ab8500_debug_resources),
1135                 .resources = ab8500_debug_resources,
1136         },
1137 #endif
1138         {
1139                 .name = "ab8500-sysctrl",
1140         },
1141         {
1142                 .name = "ab8500-regulator",
1143         },
1144         {
1145                 .name = "abx500-clk",
1146                 .of_compatible = "stericsson,abx500-clk",
1147         },
1148         {
1149                 .name = "ab8500-gpadc",
1150                 .of_compatible = "stericsson,ab8500-gpadc",
1151                 .num_resources = ARRAY_SIZE(ab8500_gpadc_resources),
1152                 .resources = ab8500_gpadc_resources,
1153         },
1154         {
1155                 .name = "ab8500-rtc",
1156                 .num_resources = ARRAY_SIZE(ab8500_rtc_resources),
1157                 .resources = ab8500_rtc_resources,
1158         },
1159         {
1160                 .name = "ab8500-acc-det",
1161                 .num_resources = ARRAY_SIZE(ab8500_av_acc_detect_resources),
1162                 .resources = ab8500_av_acc_detect_resources,
1163         },
1164         {
1165                 .name = "ab8500-poweron-key",
1166                 .num_resources = ARRAY_SIZE(ab8500_poweronkey_db_resources),
1167                 .resources = ab8500_poweronkey_db_resources,
1168         },
1169         {
1170                 .name = "ab8500-pwm",
1171                 .id = 1,
1172         },
1173         {
1174                 .name = "ab8500-leds",
1175         },
1176         {
1177                 .name = "abx500-temp",
1178                 .num_resources = ARRAY_SIZE(ab8500_temp_resources),
1179                 .resources = ab8500_temp_resources,
1180         },
1181         {
1182                 .name = "pinctrl-ab9540",
1183                 .of_compatible = "stericsson,ab9540-gpio",
1184         },
1185         {
1186                 .name = "ab9540-usb",
1187                 .num_resources = ARRAY_SIZE(ab8500_usb_resources),
1188                 .resources = ab8500_usb_resources,
1189         },
1190         {
1191                 .name = "ab9540-codec",
1192         },
1193         {
1194                 .name = "ab-iddet",
1195                 .num_resources = ARRAY_SIZE(ab8505_iddet_resources),
1196                 .resources = ab8505_iddet_resources,
1197         },
1198 };
1199
1200 /* Device list for ab8505  */
1201 static struct mfd_cell ab8505_devs[] = {
1202 #ifdef CONFIG_DEBUG_FS
1203         {
1204                 .name = "ab8500-debug",
1205                 .num_resources = ARRAY_SIZE(ab8500_debug_resources),
1206                 .resources = ab8500_debug_resources,
1207         },
1208 #endif
1209         {
1210                 .name = "ab8500-sysctrl",
1211         },
1212         {
1213                 .name = "ab8500-regulator",
1214         },
1215         {
1216                 .name = "abx500-clk",
1217                 .of_compatible = "stericsson,abx500-clk",
1218         },
1219         {
1220                 .name = "ab8500-gpadc",
1221                 .of_compatible = "stericsson,ab8500-gpadc",
1222                 .num_resources = ARRAY_SIZE(ab8505_gpadc_resources),
1223                 .resources = ab8505_gpadc_resources,
1224         },
1225         {
1226                 .name = "ab8500-rtc",
1227                 .num_resources = ARRAY_SIZE(ab8500_rtc_resources),
1228                 .resources = ab8500_rtc_resources,
1229         },
1230         {
1231                 .name = "ab8500-acc-det",
1232                 .num_resources = ARRAY_SIZE(ab8500_av_acc_detect_resources),
1233                 .resources = ab8500_av_acc_detect_resources,
1234         },
1235         {
1236                 .name = "ab8500-poweron-key",
1237                 .num_resources = ARRAY_SIZE(ab8500_poweronkey_db_resources),
1238                 .resources = ab8500_poweronkey_db_resources,
1239         },
1240         {
1241                 .name = "ab8500-pwm",
1242                 .id = 1,
1243         },
1244         {
1245                 .name = "ab8500-leds",
1246         },
1247         {
1248                 .name = "pinctrl-ab8505",
1249         },
1250         {
1251                 .name = "ab8500-usb",
1252                 .num_resources = ARRAY_SIZE(ab8500_usb_resources),
1253                 .resources = ab8500_usb_resources,
1254         },
1255         {
1256                 .name = "ab8500-codec",
1257         },
1258         {
1259                 .name = "ab-iddet",
1260                 .num_resources = ARRAY_SIZE(ab8505_iddet_resources),
1261                 .resources = ab8505_iddet_resources,
1262         },
1263 };
1264
1265 static struct mfd_cell ab8540_devs[] = {
1266 #ifdef CONFIG_DEBUG_FS
1267         {
1268                 .name = "ab8500-debug",
1269                 .num_resources = ARRAY_SIZE(ab8500_debug_resources),
1270                 .resources = ab8500_debug_resources,
1271         },
1272 #endif
1273         {
1274                 .name = "ab8500-sysctrl",
1275         },
1276         {
1277                 .name = "ab8500-regulator",
1278         },
1279         {
1280                 .name = "abx500-clk",
1281                 .of_compatible = "stericsson,abx500-clk",
1282         },
1283         {
1284                 .name = "ab8500-gpadc",
1285                 .of_compatible = "stericsson,ab8500-gpadc",
1286                 .num_resources = ARRAY_SIZE(ab8505_gpadc_resources),
1287                 .resources = ab8505_gpadc_resources,
1288         },
1289         {
1290                 .name = "ab8500-rtc",
1291                 .num_resources = ARRAY_SIZE(ab8500_rtc_resources),
1292                 .resources = ab8500_rtc_resources,
1293         },
1294         {
1295                 .name = "ab8500-acc-det",
1296                 .num_resources = ARRAY_SIZE(ab8500_av_acc_detect_resources),
1297                 .resources = ab8500_av_acc_detect_resources,
1298         },
1299         {
1300                 .name = "ab8500-poweron-key",
1301                 .num_resources = ARRAY_SIZE(ab8500_poweronkey_db_resources),
1302                 .resources = ab8500_poweronkey_db_resources,
1303         },
1304         {
1305                 .name = "ab8500-pwm",
1306                 .id = 1,
1307         },
1308         {
1309                 .name = "ab8500-leds",
1310         },
1311         {
1312                 .name = "abx500-temp",
1313                 .num_resources = ARRAY_SIZE(ab8500_temp_resources),
1314                 .resources = ab8500_temp_resources,
1315         },
1316         {
1317                 .name = "pinctrl-ab8540",
1318         },
1319         {
1320                 .name = "ab8540-usb",
1321                 .num_resources = ARRAY_SIZE(ab8500_usb_resources),
1322                 .resources = ab8500_usb_resources,
1323         },
1324         {
1325                 .name = "ab8540-codec",
1326         },
1327         {
1328                 .name = "ab-iddet",
1329                 .num_resources = ARRAY_SIZE(ab8505_iddet_resources),
1330                 .resources = ab8505_iddet_resources,
1331         },
1332 };
1333
1334 static ssize_t show_chip_id(struct device *dev,
1335                                 struct device_attribute *attr, char *buf)
1336 {
1337         struct ab8500 *ab8500;
1338
1339         ab8500 = dev_get_drvdata(dev);
1340
1341         return sprintf(buf, "%#x\n", ab8500 ? ab8500->chip_id : -EINVAL);
1342 }
1343
1344 /*
1345  * ab8500 has switched off due to (SWITCH_OFF_STATUS):
1346  * 0x01 Swoff bit programming
1347  * 0x02 Thermal protection activation
1348  * 0x04 Vbat lower then BattOk falling threshold
1349  * 0x08 Watchdog expired
1350  * 0x10 Non presence of 32kHz clock
1351  * 0x20 Battery level lower than power on reset threshold
1352  * 0x40 Power on key 1 pressed longer than 10 seconds
1353  * 0x80 DB8500 thermal shutdown
1354  */
1355 static ssize_t show_switch_off_status(struct device *dev,
1356                                 struct device_attribute *attr, char *buf)
1357 {
1358         int ret;
1359         u8 value;
1360         struct ab8500 *ab8500;
1361
1362         ab8500 = dev_get_drvdata(dev);
1363         ret = get_register_interruptible(ab8500, AB8500_RTC,
1364                 AB8500_SWITCH_OFF_STATUS, &value);
1365         if (ret < 0)
1366                 return ret;
1367         return sprintf(buf, "%#x\n", value);
1368 }
1369
1370 /* use mask and set to override the register turn_on_stat value */
1371 void ab8500_override_turn_on_stat(u8 mask, u8 set)
1372 {
1373         spin_lock(&on_stat_lock);
1374         turn_on_stat_mask = mask;
1375         turn_on_stat_set = set;
1376         spin_unlock(&on_stat_lock);
1377 }
1378
1379 /*
1380  * ab8500 has turned on due to (TURN_ON_STATUS):
1381  * 0x01 PORnVbat
1382  * 0x02 PonKey1dbF
1383  * 0x04 PonKey2dbF
1384  * 0x08 RTCAlarm
1385  * 0x10 MainChDet
1386  * 0x20 VbusDet
1387  * 0x40 UsbIDDetect
1388  * 0x80 Reserved
1389  */
1390 static ssize_t show_turn_on_status(struct device *dev,
1391                                 struct device_attribute *attr, char *buf)
1392 {
1393         int ret;
1394         u8 value;
1395         struct ab8500 *ab8500;
1396
1397         ab8500 = dev_get_drvdata(dev);
1398         ret = get_register_interruptible(ab8500, AB8500_SYS_CTRL1_BLOCK,
1399                 AB8500_TURN_ON_STATUS, &value);
1400         if (ret < 0)
1401                 return ret;
1402
1403         /*
1404          * In L9540, turn_on_status register is not updated correctly if
1405          * the device is rebooted with AC/USB charger connected. Due to
1406          * this, the device boots android instead of entering into charge
1407          * only mode. Read the AC/USB status register to detect the charger
1408          * presence and update the turn on status manually.
1409          */
1410         if (is_ab9540(ab8500)) {
1411                 spin_lock(&on_stat_lock);
1412                 value = (value & turn_on_stat_mask) | turn_on_stat_set;
1413                 spin_unlock(&on_stat_lock);
1414         }
1415
1416         return sprintf(buf, "%#x\n", value);
1417 }
1418
1419 static ssize_t show_turn_on_status_2(struct device *dev,
1420                                 struct device_attribute *attr, char *buf)
1421 {
1422         int ret;
1423         u8 value;
1424         struct ab8500 *ab8500;
1425
1426         ab8500 = dev_get_drvdata(dev);
1427         ret = get_register_interruptible(ab8500, AB8500_SYS_CTRL1_BLOCK,
1428                 AB8505_TURN_ON_STATUS_2, &value);
1429         if (ret < 0)
1430                 return ret;
1431         return sprintf(buf, "%#x\n", (value & 0x1));
1432 }
1433
1434 static ssize_t show_ab9540_dbbrstn(struct device *dev,
1435                                 struct device_attribute *attr, char *buf)
1436 {
1437         struct ab8500 *ab8500;
1438         int ret;
1439         u8 value;
1440
1441         ab8500 = dev_get_drvdata(dev);
1442
1443         ret = get_register_interruptible(ab8500, AB8500_REGU_CTRL2,
1444                 AB9540_MODEM_CTRL2_REG, &value);
1445         if (ret < 0)
1446                 return ret;
1447
1448         return sprintf(buf, "%d\n",
1449                         (value & AB9540_MODEM_CTRL2_SWDBBRSTN_BIT) ? 1 : 0);
1450 }
1451
1452 static ssize_t store_ab9540_dbbrstn(struct device *dev,
1453         struct device_attribute *attr, const char *buf, size_t count)
1454 {
1455         struct ab8500 *ab8500;
1456         int ret = count;
1457         int err;
1458         u8 bitvalues;
1459
1460         ab8500 = dev_get_drvdata(dev);
1461
1462         if (count > 0) {
1463                 switch (buf[0]) {
1464                 case '0':
1465                         bitvalues = 0;
1466                         break;
1467                 case '1':
1468                         bitvalues = AB9540_MODEM_CTRL2_SWDBBRSTN_BIT;
1469                         break;
1470                 default:
1471                         goto exit;
1472                 }
1473
1474                 err = mask_and_set_register_interruptible(ab8500,
1475                         AB8500_REGU_CTRL2, AB9540_MODEM_CTRL2_REG,
1476                         AB9540_MODEM_CTRL2_SWDBBRSTN_BIT, bitvalues);
1477                 if (err)
1478                         dev_info(ab8500->dev,
1479                                 "Failed to set DBBRSTN %c, err %#x\n",
1480                                 buf[0], err);
1481         }
1482
1483 exit:
1484         return ret;
1485 }
1486
1487 static DEVICE_ATTR(chip_id, S_IRUGO, show_chip_id, NULL);
1488 static DEVICE_ATTR(switch_off_status, S_IRUGO, show_switch_off_status, NULL);
1489 static DEVICE_ATTR(turn_on_status, S_IRUGO, show_turn_on_status, NULL);
1490 static DEVICE_ATTR(turn_on_status_2, S_IRUGO, show_turn_on_status_2, NULL);
1491 static DEVICE_ATTR(dbbrstn, S_IRUGO | S_IWUSR,
1492                         show_ab9540_dbbrstn, store_ab9540_dbbrstn);
1493
1494 static struct attribute *ab8500_sysfs_entries[] = {
1495         &dev_attr_chip_id.attr,
1496         &dev_attr_switch_off_status.attr,
1497         &dev_attr_turn_on_status.attr,
1498         NULL,
1499 };
1500
1501 static struct attribute *ab8505_sysfs_entries[] = {
1502         &dev_attr_turn_on_status_2.attr,
1503         NULL,
1504 };
1505
1506 static struct attribute *ab9540_sysfs_entries[] = {
1507         &dev_attr_chip_id.attr,
1508         &dev_attr_switch_off_status.attr,
1509         &dev_attr_turn_on_status.attr,
1510         &dev_attr_dbbrstn.attr,
1511         NULL,
1512 };
1513
1514 static struct attribute_group ab8500_attr_group = {
1515         .attrs  = ab8500_sysfs_entries,
1516 };
1517
1518 static struct attribute_group ab8505_attr_group = {
1519         .attrs  = ab8505_sysfs_entries,
1520 };
1521
1522 static struct attribute_group ab9540_attr_group = {
1523         .attrs  = ab9540_sysfs_entries,
1524 };
1525
1526 static int ab8500_probe(struct platform_device *pdev)
1527 {
1528         static char *switch_off_status[] = {
1529                 "Swoff bit programming",
1530                 "Thermal protection activation",
1531                 "Vbat lower then BattOk falling threshold",
1532                 "Watchdog expired",
1533                 "Non presence of 32kHz clock",
1534                 "Battery level lower than power on reset threshold",
1535                 "Power on key 1 pressed longer than 10 seconds",
1536                 "DB8500 thermal shutdown"};
1537         static char *turn_on_status[] = {
1538                 "Battery rising (Vbat)",
1539                 "Power On Key 1 dbF",
1540                 "Power On Key 2 dbF",
1541                 "RTC Alarm",
1542                 "Main Charger Detect",
1543                 "Vbus Detect (USB)",
1544                 "USB ID Detect",
1545                 "UART Factory Mode Detect"};
1546         struct ab8500_platform_data *plat = dev_get_platdata(&pdev->dev);
1547         const struct platform_device_id *platid = platform_get_device_id(pdev);
1548         enum ab8500_version version = AB8500_VERSION_UNDEFINED;
1549         struct device_node *np = pdev->dev.of_node;
1550         struct ab8500 *ab8500;
1551         struct resource *resource;
1552         int ret;
1553         int i;
1554         u8 value;
1555
1556         ab8500 = devm_kzalloc(&pdev->dev, sizeof *ab8500, GFP_KERNEL);
1557         if (!ab8500)
1558                 return -ENOMEM;
1559
1560         if (plat)
1561                 ab8500->irq_base = plat->irq_base;
1562
1563         ab8500->dev = &pdev->dev;
1564
1565         resource = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
1566         if (!resource)
1567                 return -ENODEV;
1568
1569         ab8500->irq = resource->start;
1570
1571         ab8500->read = ab8500_prcmu_read;
1572         ab8500->write = ab8500_prcmu_write;
1573         ab8500->write_masked = ab8500_prcmu_write_masked;
1574
1575         mutex_init(&ab8500->lock);
1576         mutex_init(&ab8500->irq_lock);
1577         atomic_set(&ab8500->transfer_ongoing, 0);
1578
1579         platform_set_drvdata(pdev, ab8500);
1580
1581         if (platid)
1582                 version = platid->driver_data;
1583
1584         if (version != AB8500_VERSION_UNDEFINED)
1585                 ab8500->version = version;
1586         else {
1587                 ret = get_register_interruptible(ab8500, AB8500_MISC,
1588                         AB8500_IC_NAME_REG, &value);
1589                 if (ret < 0)
1590                         return ret;
1591
1592                 ab8500->version = value;
1593         }
1594
1595         ret = get_register_interruptible(ab8500, AB8500_MISC,
1596                 AB8500_REV_REG, &value);
1597         if (ret < 0)
1598                 return ret;
1599
1600         ab8500->chip_id = value;
1601
1602         dev_info(ab8500->dev, "detected chip, %s rev. %1x.%1x\n",
1603                         ab8500_version_str[ab8500->version],
1604                         ab8500->chip_id >> 4,
1605                         ab8500->chip_id & 0x0F);
1606
1607         /* Configure AB8540 */
1608         if (is_ab8540(ab8500)) {
1609                 ab8500->mask_size = AB8540_NUM_IRQ_REGS;
1610                 ab8500->irq_reg_offset = ab8540_irq_regoffset;
1611                 ab8500->it_latchhier_num = AB8540_IT_LATCHHIER_NUM;
1612         }/* Configure AB8500 or AB9540 IRQ */
1613         else if (is_ab9540(ab8500) || is_ab8505(ab8500)) {
1614                 ab8500->mask_size = AB9540_NUM_IRQ_REGS;
1615                 ab8500->irq_reg_offset = ab9540_irq_regoffset;
1616                 ab8500->it_latchhier_num = AB8500_IT_LATCHHIER_NUM;
1617         } else {
1618                 ab8500->mask_size = AB8500_NUM_IRQ_REGS;
1619                 ab8500->irq_reg_offset = ab8500_irq_regoffset;
1620                 ab8500->it_latchhier_num = AB8500_IT_LATCHHIER_NUM;
1621         }
1622         ab8500->mask = devm_kzalloc(&pdev->dev, ab8500->mask_size, GFP_KERNEL);
1623         if (!ab8500->mask)
1624                 return -ENOMEM;
1625         ab8500->oldmask = devm_kzalloc(&pdev->dev, ab8500->mask_size, GFP_KERNEL);
1626         if (!ab8500->oldmask)
1627                 return -ENOMEM;
1628
1629         /*
1630          * ab8500 has switched off due to (SWITCH_OFF_STATUS):
1631          * 0x01 Swoff bit programming
1632          * 0x02 Thermal protection activation
1633          * 0x04 Vbat lower then BattOk falling threshold
1634          * 0x08 Watchdog expired
1635          * 0x10 Non presence of 32kHz clock
1636          * 0x20 Battery level lower than power on reset threshold
1637          * 0x40 Power on key 1 pressed longer than 10 seconds
1638          * 0x80 DB8500 thermal shutdown
1639          */
1640
1641         ret = get_register_interruptible(ab8500, AB8500_RTC,
1642                 AB8500_SWITCH_OFF_STATUS, &value);
1643         if (ret < 0)
1644                 return ret;
1645         dev_info(ab8500->dev, "switch off cause(s) (%#x): ", value);
1646
1647         if (value) {
1648                 for (i = 0; i < ARRAY_SIZE(switch_off_status); i++) {
1649                         if (value & 1)
1650                                 printk(KERN_CONT " \"%s\"",
1651                                        switch_off_status[i]);
1652                         value = value >> 1;
1653
1654                 }
1655                 printk(KERN_CONT "\n");
1656         } else {
1657                 printk(KERN_CONT " None\n");
1658         }
1659         ret = get_register_interruptible(ab8500, AB8500_SYS_CTRL1_BLOCK,
1660                 AB8500_TURN_ON_STATUS, &value);
1661         if (ret < 0)
1662                 return ret;
1663         dev_info(ab8500->dev, "turn on reason(s) (%#x): ", value);
1664
1665         if (value) {
1666                 for (i = 0; i < ARRAY_SIZE(turn_on_status); i++) {
1667                         if (value & 1)
1668                                 printk("\"%s\" ", turn_on_status[i]);
1669                         value = value >> 1;
1670                 }
1671                 printk("\n");
1672         } else {
1673                 printk("None\n");
1674         }
1675
1676         if (plat && plat->init)
1677                 plat->init(ab8500);
1678
1679         if (is_ab9540(ab8500)) {
1680                 ret = get_register_interruptible(ab8500, AB8500_CHARGER,
1681                         AB8500_CH_USBCH_STAT1_REG, &value);
1682                 if (ret < 0)
1683                         return ret;
1684                 if ((value & VBUS_DET_DBNC1) && (value & VBUS_DET_DBNC100))
1685                         ab8500_override_turn_on_stat(~AB8500_POW_KEY_1_ON,
1686                                                      AB8500_VBUS_DET);
1687         }
1688
1689         /* Clear and mask all interrupts */
1690         for (i = 0; i < ab8500->mask_size; i++) {
1691                 /*
1692                  * Interrupt register 12 doesn't exist prior to AB8500 version
1693                  * 2.0
1694                  */
1695                 if (ab8500->irq_reg_offset[i] == 11 &&
1696                                 is_ab8500_1p1_or_earlier(ab8500))
1697                         continue;
1698
1699                 if (ab8500->irq_reg_offset[i] < 0)
1700                         continue;
1701
1702                 get_register_interruptible(ab8500, AB8500_INTERRUPT,
1703                         AB8500_IT_LATCH1_REG + ab8500->irq_reg_offset[i],
1704                         &value);
1705                 set_register_interruptible(ab8500, AB8500_INTERRUPT,
1706                         AB8500_IT_MASK1_REG + ab8500->irq_reg_offset[i], 0xff);
1707         }
1708
1709         ret = abx500_register_ops(ab8500->dev, &ab8500_ops);
1710         if (ret)
1711                 return ret;
1712
1713         for (i = 0; i < ab8500->mask_size; i++)
1714                 ab8500->mask[i] = ab8500->oldmask[i] = 0xff;
1715
1716         ret = ab8500_irq_init(ab8500, np);
1717         if (ret)
1718                 return ret;
1719
1720         ret = devm_request_threaded_irq(&pdev->dev, ab8500->irq, NULL,
1721                         ab8500_hierarchical_irq,
1722                         IRQF_ONESHOT | IRQF_NO_SUSPEND,
1723                         "ab8500", ab8500);
1724         if (ret)
1725                 return ret;
1726
1727 #if CONFIG_DEBUG_FS
1728         /* Pass to debugfs */
1729         ab8500_debug_resources[0].start = ab8500->irq;
1730         ab8500_debug_resources[0].end = ab8500->irq;
1731 #endif
1732
1733         if (is_ab9540(ab8500))
1734                 ret = mfd_add_devices(ab8500->dev, 0, ab9540_devs,
1735                                 ARRAY_SIZE(ab9540_devs), NULL,
1736                                 ab8500->irq_base, ab8500->domain);
1737         else if (is_ab8540(ab8500))
1738                 ret = mfd_add_devices(ab8500->dev, 0, ab8540_devs,
1739                               ARRAY_SIZE(ab8540_devs), NULL,
1740                               ab8500->irq_base, ab8500->domain);
1741         else if (is_ab8505(ab8500))
1742                 ret = mfd_add_devices(ab8500->dev, 0, ab8505_devs,
1743                               ARRAY_SIZE(ab8505_devs), NULL,
1744                               ab8500->irq_base, ab8500->domain);
1745         else
1746                 ret = mfd_add_devices(ab8500->dev, 0, ab8500_devs,
1747                                 ARRAY_SIZE(ab8500_devs), NULL,
1748                                 ab8500->irq_base, ab8500->domain);
1749         if (ret)
1750                 return ret;
1751
1752         if (!no_bm) {
1753                 /* Add battery management devices */
1754                 ret = mfd_add_devices(ab8500->dev, 0, ab8500_bm_devs,
1755                                       ARRAY_SIZE(ab8500_bm_devs), NULL,
1756                                       ab8500->irq_base, ab8500->domain);
1757                 if (ret)
1758                         dev_err(ab8500->dev, "error adding bm devices\n");
1759         }
1760
1761         if (((is_ab8505(ab8500) || is_ab9540(ab8500)) &&
1762                         ab8500->chip_id >= AB8500_CUT2P0) || is_ab8540(ab8500))
1763                 ret = sysfs_create_group(&ab8500->dev->kobj,
1764                                         &ab9540_attr_group);
1765         else
1766                 ret = sysfs_create_group(&ab8500->dev->kobj,
1767                                         &ab8500_attr_group);
1768
1769         if ((is_ab8505(ab8500) || is_ab9540(ab8500)) &&
1770                         ab8500->chip_id >= AB8500_CUT2P0)
1771                 ret = sysfs_create_group(&ab8500->dev->kobj,
1772                                          &ab8505_attr_group);
1773
1774         if (ret)
1775                 dev_err(ab8500->dev, "error creating sysfs entries\n");
1776
1777         return ret;
1778 }
1779
1780 static int ab8500_remove(struct platform_device *pdev)
1781 {
1782         struct ab8500 *ab8500 = platform_get_drvdata(pdev);
1783
1784         if (((is_ab8505(ab8500) || is_ab9540(ab8500)) &&
1785                         ab8500->chip_id >= AB8500_CUT2P0) || is_ab8540(ab8500))
1786                 sysfs_remove_group(&ab8500->dev->kobj, &ab9540_attr_group);
1787         else
1788                 sysfs_remove_group(&ab8500->dev->kobj, &ab8500_attr_group);
1789
1790         if ((is_ab8505(ab8500) || is_ab9540(ab8500)) &&
1791                         ab8500->chip_id >= AB8500_CUT2P0)
1792                 sysfs_remove_group(&ab8500->dev->kobj, &ab8505_attr_group);
1793
1794         mfd_remove_devices(ab8500->dev);
1795
1796         return 0;
1797 }
1798
1799 static const struct platform_device_id ab8500_id[] = {
1800         { "ab8500-core", AB8500_VERSION_AB8500 },
1801         { "ab8505-i2c", AB8500_VERSION_AB8505 },
1802         { "ab9540-i2c", AB8500_VERSION_AB9540 },
1803         { "ab8540-i2c", AB8500_VERSION_AB8540 },
1804         { }
1805 };
1806
1807 static struct platform_driver ab8500_core_driver = {
1808         .driver = {
1809                 .name = "ab8500-core",
1810                 .owner = THIS_MODULE,
1811         },
1812         .probe  = ab8500_probe,
1813         .remove = ab8500_remove,
1814         .id_table = ab8500_id,
1815 };
1816
1817 static int __init ab8500_core_init(void)
1818 {
1819         return platform_driver_register(&ab8500_core_driver);
1820 }
1821
1822 static void __exit ab8500_core_exit(void)
1823 {
1824         platform_driver_unregister(&ab8500_core_driver);
1825 }
1826 core_initcall(ab8500_core_init);
1827 module_exit(ab8500_core_exit);
1828
1829 MODULE_AUTHOR("Mattias Wallin, Srinidhi Kasagar, Rabin Vincent");
1830 MODULE_DESCRIPTION("AB8500 MFD core");
1831 MODULE_LICENSE("GPL v2");