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_FIRST",
 872                 .start  = AB8500_INT_MAIN_EXT_CH_NOT_OK,
 873                 .end    = AB8500_INT_MAIN_EXT_CH_NOT_OK,
 874                 .flags  = IORESOURCE_IRQ,
 875         },
 876         {
 877                 .name   = "IRQ_LAST",
 878                 .start  = AB8500_INT_XTAL32K_KO,
 879                 .end    = AB8500_INT_XTAL32K_KO,
 880                 .flags  = IORESOURCE_IRQ,
 881         },
 882 };
 883 #endif
 884
 885 static struct resource ab8500_usb_resources[] = {
 886         {
 887                 .name = "ID_WAKEUP_R",
 888                 .start = AB8500_INT_ID_WAKEUP_R,
 889                 .end = AB8500_INT_ID_WAKEUP_R,
 890                 .flags = IORESOURCE_IRQ,
 891         },
 892         {
 893                 .name = "ID_WAKEUP_F",
 894                 .start = AB8500_INT_ID_WAKEUP_F,
 895                 .end = AB8500_INT_ID_WAKEUP_F,
 896                 .flags = IORESOURCE_IRQ,
 897         },
 898         {
 899                 .name = "VBUS_DET_F",
 900                 .start = AB8500_INT_VBUS_DET_F,
 901                 .end = AB8500_INT_VBUS_DET_F,
 902                 .flags = IORESOURCE_IRQ,
 903         },
 904         {
 905                 .name = "VBUS_DET_R",
 906                 .start = AB8500_INT_VBUS_DET_R,
 907                 .end = AB8500_INT_VBUS_DET_R,
 908                 .flags = IORESOURCE_IRQ,
 909         },
 910         {
 911                 .name = "USB_LINK_STATUS",
 912                 .start = AB8500_INT_USB_LINK_STATUS,
 913                 .end = AB8500_INT_USB_LINK_STATUS,
 914                 .flags = IORESOURCE_IRQ,
 915         },
 916         {
 917                 .name = "USB_ADP_PROBE_PLUG",
 918                 .start = AB8500_INT_ADP_PROBE_PLUG,
 919                 .end = AB8500_INT_ADP_PROBE_PLUG,
 920                 .flags = IORESOURCE_IRQ,
 921         },
 922         {
 923                 .name = "USB_ADP_PROBE_UNPLUG",
 924                 .start = AB8500_INT_ADP_PROBE_UNPLUG,
 925                 .end = AB8500_INT_ADP_PROBE_UNPLUG,
 926                 .flags = IORESOURCE_IRQ,
 927         },
 928 };
 929
 930 static struct resource ab8505_iddet_resources[] = {
 931         {
 932                 .name  = "KeyDeglitch",
 933                 .start = AB8505_INT_KEYDEGLITCH,
 934                 .end   = AB8505_INT_KEYDEGLITCH,
 935                 .flags = IORESOURCE_IRQ,
 936         },
 937         {
 938                 .name  = "KP",
 939                 .start = AB8505_INT_KP,
 940                 .end   = AB8505_INT_KP,
 941                 .flags = IORESOURCE_IRQ,
 942         },
 943         {
 944                 .name  = "IKP",
 945                 .start = AB8505_INT_IKP,
 946                 .end   = AB8505_INT_IKP,
 947                 .flags = IORESOURCE_IRQ,
 948         },
 949         {
 950                 .name  = "IKR",
 951                 .start = AB8505_INT_IKR,
 952                 .end   = AB8505_INT_IKR,
 953                 .flags = IORESOURCE_IRQ,
 954         },
 955         {
 956                 .name  = "KeyStuck",
 957                 .start = AB8505_INT_KEYSTUCK,
 958                 .end   = AB8505_INT_KEYSTUCK,
 959                 .flags = IORESOURCE_IRQ,
 960         },
 961         {
 962                 .name = "VBUS_DET_R",
 963                 .start = AB8500_INT_VBUS_DET_R,
 964                 .end = AB8500_INT_VBUS_DET_R,
 965                 .flags = IORESOURCE_IRQ,
 966         },
 967         {
 968                 .name = "VBUS_DET_F",
 969                 .start = AB8500_INT_VBUS_DET_F,
 970                 .end = AB8500_INT_VBUS_DET_F,
 971                 .flags = IORESOURCE_IRQ,
 972         },
 973         {
 974                 .name = "ID_DET_PLUGR",
 975                 .start = AB8500_INT_ID_DET_PLUGR,
 976                 .end = AB8500_INT_ID_DET_PLUGR,
 977                 .flags = IORESOURCE_IRQ,
 978         },
 979         {
 980                 .name = "ID_DET_PLUGF",
 981                 .start = AB8500_INT_ID_DET_PLUGF,
 982                 .end = AB8500_INT_ID_DET_PLUGF,
 983                 .flags = IORESOURCE_IRQ,
 984         },
 985 };
 986
 987 static struct resource ab8500_temp_resources[] = {
 988         {
 989                 .name  = "ABX500_TEMP_WARM",
 990                 .start = AB8500_INT_TEMP_WARM,
 991                 .end   = AB8500_INT_TEMP_WARM,
 992                 .flags = IORESOURCE_IRQ,
 993         },
 994 };
 995
 996 static struct mfd_cell ab8500_bm_devs[] = {
 997         {
 998                 .name = "ab8500-charger",
 999                 .of_compatible = "stericsson,ab8500-charger",
1000                 .num_resources = ARRAY_SIZE(ab8500_charger_resources),
1001                 .resources = ab8500_charger_resources,
1002                 .platform_data = &ab8500_bm_data,
1003                 .pdata_size = sizeof(ab8500_bm_data),
1004         },
1005         {
1006                 .name = "ab8500-btemp",
1007                 .of_compatible = "stericsson,ab8500-btemp",
1008                 .num_resources = ARRAY_SIZE(ab8500_btemp_resources),
1009                 .resources = ab8500_btemp_resources,
1010                 .platform_data = &ab8500_bm_data,
1011                 .pdata_size = sizeof(ab8500_bm_data),
1012         },
1013         {
1014                 .name = "ab8500-fg",
1015                 .of_compatible = "stericsson,ab8500-fg",
1016                 .num_resources = ARRAY_SIZE(ab8500_fg_resources),
1017                 .resources = ab8500_fg_resources,
1018                 .platform_data = &ab8500_bm_data,
1019                 .pdata_size = sizeof(ab8500_bm_data),
1020         },
1021         {
1022                 .name = "ab8500-chargalg",
1023                 .of_compatible = "stericsson,ab8500-chargalg",
1024                 .num_resources = ARRAY_SIZE(ab8500_chargalg_resources),
1025                 .resources = ab8500_chargalg_resources,
1026                 .platform_data = &ab8500_bm_data,
1027                 .pdata_size = sizeof(ab8500_bm_data),
1028         },
1029 };
1030
1031 static struct mfd_cell ab8500_devs[] = {
1032 #ifdef CONFIG_DEBUG_FS
1033         {
1034                 .name = "ab8500-debug",
1035                 .of_compatible = "stericsson,ab8500-debug",
1036                 .num_resources = ARRAY_SIZE(ab8500_debug_resources),
1037                 .resources = ab8500_debug_resources,
1038         },
1039 #endif
1040         {
1041                 .name = "ab8500-sysctrl",
1042                 .of_compatible = "stericsson,ab8500-sysctrl",
1043         },
1044         {
1045                 .name = "ab8500-regulator",
1046                 .of_compatible = "stericsson,ab8500-regulator",
1047         },
1048         {
1049                 .name = "abx500-clk",
1050                 .of_compatible = "stericsson,abx500-clk",
1051         },
1052         {
1053                 .name = "ab8500-gpadc",
1054                 .num_resources = ARRAY_SIZE(ab8500_gpadc_resources),
1055                 .resources = ab8500_gpadc_resources,
1056         },
1057         {
1058                 .name = "ab8500-rtc",
1059                 .of_compatible = "stericsson,ab8500-rtc",
1060                 .num_resources = ARRAY_SIZE(ab8500_rtc_resources),
1061                 .resources = ab8500_rtc_resources,
1062         },
1063         {
1064                 .name = "ab8500-acc-det",
1065                 .of_compatible = "stericsson,ab8500-acc-det",
1066                 .num_resources = ARRAY_SIZE(ab8500_av_acc_detect_resources),
1067                 .resources = ab8500_av_acc_detect_resources,
1068         },
1069         {
1070
1071                 .name = "ab8500-poweron-key",
1072                 .of_compatible = "stericsson,ab8500-poweron-key",
1073                 .num_resources = ARRAY_SIZE(ab8500_poweronkey_db_resources),
1074                 .resources = ab8500_poweronkey_db_resources,
1075         },
1076         {
1077                 .name = "ab8500-pwm",
1078                 .of_compatible = "stericsson,ab8500-pwm",
1079                 .id = 1,
1080         },
1081         {
1082                 .name = "ab8500-pwm",
1083                 .of_compatible = "stericsson,ab8500-pwm",
1084                 .id = 2,
1085         },
1086         {
1087                 .name = "ab8500-pwm",
1088                 .of_compatible = "stericsson,ab8500-pwm",
1089                 .id = 3,
1090         },
1091         {
1092                 .name = "ab8500-leds",
1093                 .of_compatible = "stericsson,ab8500-leds",
1094         },
1095         {
1096                 .name = "ab8500-denc",
1097                 .of_compatible = "stericsson,ab8500-denc",
1098         },
1099         {
1100                 .name = "ab8500-gpio",
1101                 .of_compatible = "stericsson,ab8500-gpio",
1102         },
1103         {
1104                 .name = "abx500-temp",
1105                 .of_compatible = "stericsson,abx500-temp",
1106                 .num_resources = ARRAY_SIZE(ab8500_temp_resources),
1107                 .resources = ab8500_temp_resources,
1108         },
1109         {
1110                 .name = "ab8500-usb",
1111                 .of_compatible = "stericsson,ab8500-usb",
1112                 .num_resources = ARRAY_SIZE(ab8500_usb_resources),
1113                 .resources = ab8500_usb_resources,
1114         },
1115         {
1116                 .name = "ab8500-codec",
1117         },
1118 };
1119
1120 static struct mfd_cell ab9540_devs[] = {
1121 #ifdef CONFIG_DEBUG_FS
1122         {
1123                 .name = "ab8500-debug",
1124                 .num_resources = ARRAY_SIZE(ab8500_debug_resources),
1125                 .resources = ab8500_debug_resources,
1126         },
1127 #endif
1128         {
1129                 .name = "ab8500-sysctrl",
1130         },
1131         {
1132                 .name = "ab8500-regulator",
1133         },
1134         {
1135                 .name = "abx500-clk",
1136                 .of_compatible = "stericsson,abx500-clk",
1137         },
1138         {
1139                 .name = "ab8500-gpadc",
1140                 .of_compatible = "stericsson,ab8500-gpadc",
1141                 .num_resources = ARRAY_SIZE(ab8500_gpadc_resources),
1142                 .resources = ab8500_gpadc_resources,
1143         },
1144         {
1145                 .name = "ab8500-rtc",
1146                 .num_resources = ARRAY_SIZE(ab8500_rtc_resources),
1147                 .resources = ab8500_rtc_resources,
1148         },
1149         {
1150                 .name = "ab8500-acc-det",
1151                 .num_resources = ARRAY_SIZE(ab8500_av_acc_detect_resources),
1152                 .resources = ab8500_av_acc_detect_resources,
1153         },
1154         {
1155                 .name = "ab8500-poweron-key",
1156                 .num_resources = ARRAY_SIZE(ab8500_poweronkey_db_resources),
1157                 .resources = ab8500_poweronkey_db_resources,
1158         },
1159         {
1160                 .name = "ab8500-pwm",
1161                 .id = 1,
1162         },
1163         {
1164                 .name = "ab8500-leds",
1165         },
1166         {
1167                 .name = "abx500-temp",
1168                 .num_resources = ARRAY_SIZE(ab8500_temp_resources),
1169                 .resources = ab8500_temp_resources,
1170         },
1171         {
1172                 .name = "pinctrl-ab9540",
1173                 .of_compatible = "stericsson,ab9540-gpio",
1174         },
1175         {
1176                 .name = "ab9540-usb",
1177                 .num_resources = ARRAY_SIZE(ab8500_usb_resources),
1178                 .resources = ab8500_usb_resources,
1179         },
1180         {
1181                 .name = "ab9540-codec",
1182         },
1183         {
1184                 .name = "ab-iddet",
1185                 .num_resources = ARRAY_SIZE(ab8505_iddet_resources),
1186                 .resources = ab8505_iddet_resources,
1187         },
1188 };
1189
1190 /* Device list for ab8505  */
1191 static struct mfd_cell ab8505_devs[] = {
1192 #ifdef CONFIG_DEBUG_FS
1193         {
1194                 .name = "ab8500-debug",
1195                 .num_resources = ARRAY_SIZE(ab8500_debug_resources),
1196                 .resources = ab8500_debug_resources,
1197         },
1198 #endif
1199         {
1200                 .name = "ab8500-sysctrl",
1201         },
1202         {
1203                 .name = "ab8500-regulator",
1204         },
1205         {
1206                 .name = "abx500-clk",
1207                 .of_compatible = "stericsson,abx500-clk",
1208         },
1209         {
1210                 .name = "ab8500-gpadc",
1211                 .num_resources = ARRAY_SIZE(ab8505_gpadc_resources),
1212                 .resources = ab8505_gpadc_resources,
1213         },
1214         {
1215                 .name = "ab8500-rtc",
1216                 .num_resources = ARRAY_SIZE(ab8500_rtc_resources),
1217                 .resources = ab8500_rtc_resources,
1218         },
1219         {
1220                 .name = "ab8500-acc-det",
1221                 .num_resources = ARRAY_SIZE(ab8500_av_acc_detect_resources),
1222                 .resources = ab8500_av_acc_detect_resources,
1223         },
1224         {
1225                 .name = "ab8500-poweron-key",
1226                 .num_resources = ARRAY_SIZE(ab8500_poweronkey_db_resources),
1227                 .resources = ab8500_poweronkey_db_resources,
1228         },
1229         {
1230                 .name = "ab8500-pwm",
1231                 .id = 1,
1232         },
1233         {
1234                 .name = "ab8500-leds",
1235         },
1236         {
1237                 .name = "ab8500-gpio",
1238         },
1239         {
1240                 .name = "ab8500-usb",
1241                 .num_resources = ARRAY_SIZE(ab8500_usb_resources),
1242                 .resources = ab8500_usb_resources,
1243         },
1244         {
1245                 .name = "ab8500-codec",
1246         },
1247         {
1248                 .name = "ab-iddet",
1249                 .num_resources = ARRAY_SIZE(ab8505_iddet_resources),
1250                 .resources = ab8505_iddet_resources,
1251         },
1252 };
1253
1254 static struct mfd_cell ab8540_devs[] = {
1255 #ifdef CONFIG_DEBUG_FS
1256         {
1257                 .name = "ab8500-debug",
1258                 .num_resources = ARRAY_SIZE(ab8500_debug_resources),
1259                 .resources = ab8500_debug_resources,
1260         },
1261 #endif
1262         {
1263                 .name = "ab8500-sysctrl",
1264         },
1265         {
1266                 .name = "ab8500-regulator",
1267         },
1268         {
1269                 .name = "abx500-clk",
1270                 .of_compatible = "stericsson,abx500-clk",
1271         },
1272         {
1273                 .name = "ab8500-gpadc",
1274                 .num_resources = ARRAY_SIZE(ab8505_gpadc_resources),
1275                 .resources = ab8505_gpadc_resources,
1276         },
1277         {
1278                 .name = "ab8500-rtc",
1279                 .num_resources = ARRAY_SIZE(ab8500_rtc_resources),
1280                 .resources = ab8500_rtc_resources,
1281         },
1282         {
1283                 .name = "ab8500-acc-det",
1284                 .num_resources = ARRAY_SIZE(ab8500_av_acc_detect_resources),
1285                 .resources = ab8500_av_acc_detect_resources,
1286         },
1287         {
1288                 .name = "ab8500-poweron-key",
1289                 .num_resources = ARRAY_SIZE(ab8500_poweronkey_db_resources),
1290                 .resources = ab8500_poweronkey_db_resources,
1291         },
1292         {
1293                 .name = "ab8500-pwm",
1294                 .id = 1,
1295         },
1296         {
1297                 .name = "ab8500-leds",
1298         },
1299         {
1300                 .name = "abx500-temp",
1301                 .num_resources = ARRAY_SIZE(ab8500_temp_resources),
1302                 .resources = ab8500_temp_resources,
1303         },
1304         {
1305                 .name = "ab8500-gpio",
1306         },
1307         {
1308                 .name = "ab8540-usb",
1309                 .num_resources = ARRAY_SIZE(ab8500_usb_resources),
1310                 .resources = ab8500_usb_resources,
1311         },
1312         {
1313                 .name = "ab8540-codec",
1314         },
1315         {
1316                 .name = "ab-iddet",
1317                 .num_resources = ARRAY_SIZE(ab8505_iddet_resources),
1318                 .resources = ab8505_iddet_resources,
1319         },
1320 };
1321
1322 static ssize_t show_chip_id(struct device *dev,
1323                                 struct device_attribute *attr, char *buf)
1324 {
1325         struct ab8500 *ab8500;
1326
1327         ab8500 = dev_get_drvdata(dev);
1328
1329         return sprintf(buf, "%#x\n", ab8500 ? ab8500->chip_id : -EINVAL);
1330 }
1331
1332 /*
1333  * ab8500 has switched off due to (SWITCH_OFF_STATUS):
1334  * 0x01 Swoff bit programming
1335  * 0x02 Thermal protection activation
1336  * 0x04 Vbat lower then BattOk falling threshold
1337  * 0x08 Watchdog expired
1338  * 0x10 Non presence of 32kHz clock
1339  * 0x20 Battery level lower than power on reset threshold
1340  * 0x40 Power on key 1 pressed longer than 10 seconds
1341  * 0x80 DB8500 thermal shutdown
1342  */
1343 static ssize_t show_switch_off_status(struct device *dev,
1344                                 struct device_attribute *attr, char *buf)
1345 {
1346         int ret;
1347         u8 value;
1348         struct ab8500 *ab8500;
1349
1350         ab8500 = dev_get_drvdata(dev);
1351         ret = get_register_interruptible(ab8500, AB8500_RTC,
1352                 AB8500_SWITCH_OFF_STATUS, &value);
1353         if (ret < 0)
1354                 return ret;
1355         return sprintf(buf, "%#x\n", value);
1356 }
1357
1358 /* use mask and set to override the register turn_on_stat value */
1359 void ab8500_override_turn_on_stat(u8 mask, u8 set)
1360 {
1361         spin_lock(&on_stat_lock);
1362         turn_on_stat_mask = mask;
1363         turn_on_stat_set = set;
1364         spin_unlock(&on_stat_lock);
1365 }
1366
1367 /*
1368  * ab8500 has turned on due to (TURN_ON_STATUS):
1369  * 0x01 PORnVbat
1370  * 0x02 PonKey1dbF
1371  * 0x04 PonKey2dbF
1372  * 0x08 RTCAlarm
1373  * 0x10 MainChDet
1374  * 0x20 VbusDet
1375  * 0x40 UsbIDDetect
1376  * 0x80 Reserved
1377  */
1378 static ssize_t show_turn_on_status(struct device *dev,
1379                                 struct device_attribute *attr, char *buf)
1380 {
1381         int ret;
1382         u8 value;
1383         struct ab8500 *ab8500;
1384
1385         ab8500 = dev_get_drvdata(dev);
1386         ret = get_register_interruptible(ab8500, AB8500_SYS_CTRL1_BLOCK,
1387                 AB8500_TURN_ON_STATUS, &value);
1388         if (ret < 0)
1389                 return ret;
1390
1391         /*
1392          * In L9540, turn_on_status register is not updated correctly if
1393          * the device is rebooted with AC/USB charger connected. Due to
1394          * this, the device boots android instead of entering into charge
1395          * only mode. Read the AC/USB status register to detect the charger
1396          * presence and update the turn on status manually.
1397          */
1398         if (is_ab9540(ab8500)) {
1399                 spin_lock(&on_stat_lock);
1400                 value = (value & turn_on_stat_mask) | turn_on_stat_set;
1401                 spin_unlock(&on_stat_lock);
1402         }
1403
1404         return sprintf(buf, "%#x\n", value);
1405 }
1406
1407 static ssize_t show_turn_on_status_2(struct device *dev,
1408                                 struct device_attribute *attr, char *buf)
1409 {
1410         int ret;
1411         u8 value;
1412         struct ab8500 *ab8500;
1413
1414         ab8500 = dev_get_drvdata(dev);
1415         ret = get_register_interruptible(ab8500, AB8500_SYS_CTRL1_BLOCK,
1416                 AB8505_TURN_ON_STATUS_2, &value);
1417         if (ret < 0)
1418                 return ret;
1419         return sprintf(buf, "%#x\n", (value & 0x1));
1420 }
1421
1422 static ssize_t show_ab9540_dbbrstn(struct device *dev,
1423                                 struct device_attribute *attr, char *buf)
1424 {
1425         struct ab8500 *ab8500;
1426         int ret;
1427         u8 value;
1428
1429         ab8500 = dev_get_drvdata(dev);
1430
1431         ret = get_register_interruptible(ab8500, AB8500_REGU_CTRL2,
1432                 AB9540_MODEM_CTRL2_REG, &value);
1433         if (ret < 0)
1434                 return ret;
1435
1436         return sprintf(buf, "%d\n",
1437                         (value & AB9540_MODEM_CTRL2_SWDBBRSTN_BIT) ? 1 : 0);
1438 }
1439
1440 static ssize_t store_ab9540_dbbrstn(struct device *dev,
1441         struct device_attribute *attr, const char *buf, size_t count)
1442 {
1443         struct ab8500 *ab8500;
1444         int ret = count;
1445         int err;
1446         u8 bitvalues;
1447
1448         ab8500 = dev_get_drvdata(dev);
1449
1450         if (count > 0) {
1451                 switch (buf[0]) {
1452                 case '0':
1453                         bitvalues = 0;
1454                         break;
1455                 case '1':
1456                         bitvalues = AB9540_MODEM_CTRL2_SWDBBRSTN_BIT;
1457                         break;
1458                 default:
1459                         goto exit;
1460                 }
1461
1462                 err = mask_and_set_register_interruptible(ab8500,
1463                         AB8500_REGU_CTRL2, AB9540_MODEM_CTRL2_REG,
1464                         AB9540_MODEM_CTRL2_SWDBBRSTN_BIT, bitvalues);
1465                 if (err)
1466                         dev_info(ab8500->dev,
1467                                 "Failed to set DBBRSTN %c, err %#x\n",
1468                                 buf[0], err);
1469         }
1470
1471 exit:
1472         return ret;
1473 }
1474
1475 static DEVICE_ATTR(chip_id, S_IRUGO, show_chip_id, NULL);
1476 static DEVICE_ATTR(switch_off_status, S_IRUGO, show_switch_off_status, NULL);
1477 static DEVICE_ATTR(turn_on_status, S_IRUGO, show_turn_on_status, NULL);
1478 static DEVICE_ATTR(turn_on_status_2, S_IRUGO, show_turn_on_status_2, NULL);
1479 static DEVICE_ATTR(dbbrstn, S_IRUGO | S_IWUSR,
1480                         show_ab9540_dbbrstn, store_ab9540_dbbrstn);
1481
1482 static struct attribute *ab8500_sysfs_entries[] = {
1483         &dev_attr_chip_id.attr,
1484         &dev_attr_switch_off_status.attr,
1485         &dev_attr_turn_on_status.attr,
1486         NULL,
1487 };
1488
1489 static struct attribute *ab8505_sysfs_entries[] = {
1490         &dev_attr_turn_on_status_2.attr,
1491         NULL,
1492 };
1493
1494 static struct attribute *ab9540_sysfs_entries[] = {
1495         &dev_attr_chip_id.attr,
1496         &dev_attr_switch_off_status.attr,
1497         &dev_attr_turn_on_status.attr,
1498         &dev_attr_dbbrstn.attr,
1499         NULL,
1500 };
1501
1502 static struct attribute_group ab8500_attr_group = {
1503         .attrs  = ab8500_sysfs_entries,
1504 };
1505
1506 static struct attribute_group ab8505_attr_group = {
1507         .attrs  = ab8505_sysfs_entries,
1508 };
1509
1510 static struct attribute_group ab9540_attr_group = {
1511         .attrs  = ab9540_sysfs_entries,
1512 };
1513
1514 static int ab8500_probe(struct platform_device *pdev)
1515 {
1516         static char *switch_off_status[] = {
1517                 "Swoff bit programming",
1518                 "Thermal protection activation",
1519                 "Vbat lower then BattOk falling threshold",
1520                 "Watchdog expired",
1521                 "Non presence of 32kHz clock",
1522                 "Battery level lower than power on reset threshold",
1523                 "Power on key 1 pressed longer than 10 seconds",
1524                 "DB8500 thermal shutdown"};
1525         static char *turn_on_status[] = {
1526                 "Battery rising (Vbat)",
1527                 "Power On Key 1 dbF",
1528                 "Power On Key 2 dbF",
1529                 "RTC Alarm",
1530                 "Main Charger Detect",
1531                 "Vbus Detect (USB)",
1532                 "USB ID Detect",
1533                 "UART Factory Mode Detect"};
1534         struct ab8500_platform_data *plat = dev_get_platdata(&pdev->dev);
1535         const struct platform_device_id *platid = platform_get_device_id(pdev);
1536         enum ab8500_version version = AB8500_VERSION_UNDEFINED;
1537         struct device_node *np = pdev->dev.of_node;
1538         struct ab8500 *ab8500;
1539         struct resource *resource;
1540         int ret;
1541         int i;
1542         u8 value;
1543
1544         ab8500 = devm_kzalloc(&pdev->dev, sizeof *ab8500, GFP_KERNEL);
1545         if (!ab8500)
1546                 return -ENOMEM;
1547
1548         if (plat)
1549                 ab8500->irq_base = plat->irq_base;
1550
1551         ab8500->dev = &pdev->dev;
1552
1553         resource = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
1554         if (!resource)
1555                 return -ENODEV;
1556
1557         ab8500->irq = resource->start;
1558
1559         ab8500->read = ab8500_prcmu_read;
1560         ab8500->write = ab8500_prcmu_write;
1561         ab8500->write_masked = ab8500_prcmu_write_masked;
1562
1563         mutex_init(&ab8500->lock);
1564         mutex_init(&ab8500->irq_lock);
1565         atomic_set(&ab8500->transfer_ongoing, 0);
1566
1567         platform_set_drvdata(pdev, ab8500);
1568
1569         if (platid)
1570                 version = platid->driver_data;
1571
1572         if (version != AB8500_VERSION_UNDEFINED)
1573                 ab8500->version = version;
1574         else {
1575                 ret = get_register_interruptible(ab8500, AB8500_MISC,
1576                         AB8500_IC_NAME_REG, &value);
1577                 if (ret < 0)
1578                         return ret;
1579
1580                 ab8500->version = value;
1581         }
1582
1583         ret = get_register_interruptible(ab8500, AB8500_MISC,
1584                 AB8500_REV_REG, &value);
1585         if (ret < 0)
1586                 return ret;
1587
1588         ab8500->chip_id = value;
1589
1590         dev_info(ab8500->dev, "detected chip, %s rev. %1x.%1x\n",
1591                         ab8500_version_str[ab8500->version],
1592                         ab8500->chip_id >> 4,
1593                         ab8500->chip_id & 0x0F);
1594
1595         /* Configure AB8540 */
1596         if (is_ab8540(ab8500)) {
1597                 ab8500->mask_size = AB8540_NUM_IRQ_REGS;
1598                 ab8500->irq_reg_offset = ab8540_irq_regoffset;
1599                 ab8500->it_latchhier_num = AB8540_IT_LATCHHIER_NUM;
1600         }/* Configure AB8500 or AB9540 IRQ */
1601         else if (is_ab9540(ab8500) || is_ab8505(ab8500)) {
1602                 ab8500->mask_size = AB9540_NUM_IRQ_REGS;
1603                 ab8500->irq_reg_offset = ab9540_irq_regoffset;
1604                 ab8500->it_latchhier_num = AB8500_IT_LATCHHIER_NUM;
1605         } else {
1606                 ab8500->mask_size = AB8500_NUM_IRQ_REGS;
1607                 ab8500->irq_reg_offset = ab8500_irq_regoffset;
1608                 ab8500->it_latchhier_num = AB8500_IT_LATCHHIER_NUM;
1609         }
1610         ab8500->mask = devm_kzalloc(&pdev->dev, ab8500->mask_size, GFP_KERNEL);
1611         if (!ab8500->mask)
1612                 return -ENOMEM;
1613         ab8500->oldmask = devm_kzalloc(&pdev->dev, ab8500->mask_size, GFP_KERNEL);
1614         if (!ab8500->oldmask)
1615                 return -ENOMEM;
1616
1617         /*
1618          * ab8500 has switched off due to (SWITCH_OFF_STATUS):
1619          * 0x01 Swoff bit programming
1620          * 0x02 Thermal protection activation
1621          * 0x04 Vbat lower then BattOk falling threshold
1622          * 0x08 Watchdog expired
1623          * 0x10 Non presence of 32kHz clock
1624          * 0x20 Battery level lower than power on reset threshold
1625          * 0x40 Power on key 1 pressed longer than 10 seconds
1626          * 0x80 DB8500 thermal shutdown
1627          */
1628
1629         ret = get_register_interruptible(ab8500, AB8500_RTC,
1630                 AB8500_SWITCH_OFF_STATUS, &value);
1631         if (ret < 0)
1632                 return ret;
1633         dev_info(ab8500->dev, "switch off cause(s) (%#x): ", value);
1634
1635         if (value) {
1636                 for (i = 0; i < ARRAY_SIZE(switch_off_status); i++) {
1637                         if (value & 1)
1638                                 printk(KERN_CONT " \"%s\"",
1639                                        switch_off_status[i]);
1640                         value = value >> 1;
1641
1642                 }
1643                 printk(KERN_CONT "\n");
1644         } else {
1645                 printk(KERN_CONT " None\n");
1646         }
1647         ret = get_register_interruptible(ab8500, AB8500_SYS_CTRL1_BLOCK,
1648                 AB8500_TURN_ON_STATUS, &value);
1649         if (ret < 0)
1650                 return ret;
1651         dev_info(ab8500->dev, "turn on reason(s) (%#x): ", value);
1652
1653         if (value) {
1654                 for (i = 0; i < ARRAY_SIZE(turn_on_status); i++) {
1655                         if (value & 1)
1656                                 printk("\"%s\" ", turn_on_status[i]);
1657                         value = value >> 1;
1658                 }
1659                 printk("\n");
1660         } else {
1661                 printk("None\n");
1662         }
1663
1664         if (plat && plat->init)
1665                 plat->init(ab8500);
1666
1667         if (is_ab9540(ab8500)) {
1668                 ret = get_register_interruptible(ab8500, AB8500_CHARGER,
1669                         AB8500_CH_USBCH_STAT1_REG, &value);
1670                 if (ret < 0)
1671                         return ret;
1672                 if ((value & VBUS_DET_DBNC1) && (value & VBUS_DET_DBNC100))
1673                         ab8500_override_turn_on_stat(~AB8500_POW_KEY_1_ON,
1674                                                      AB8500_VBUS_DET);
1675         }
1676
1677         /* Clear and mask all interrupts */
1678         for (i = 0; i < ab8500->mask_size; i++) {
1679                 /*
1680                  * Interrupt register 12 doesn't exist prior to AB8500 version
1681                  * 2.0
1682                  */
1683                 if (ab8500->irq_reg_offset[i] == 11 &&
1684                                 is_ab8500_1p1_or_earlier(ab8500))
1685                         continue;
1686
1687                 if (ab8500->irq_reg_offset[i] < 0)
1688                         continue;
1689
1690                 get_register_interruptible(ab8500, AB8500_INTERRUPT,
1691                         AB8500_IT_LATCH1_REG + ab8500->irq_reg_offset[i],
1692                         &value);
1693                 set_register_interruptible(ab8500, AB8500_INTERRUPT,
1694                         AB8500_IT_MASK1_REG + ab8500->irq_reg_offset[i], 0xff);
1695         }
1696
1697         ret = abx500_register_ops(ab8500->dev, &ab8500_ops);
1698         if (ret)
1699                 return ret;
1700
1701         for (i = 0; i < ab8500->mask_size; i++)
1702                 ab8500->mask[i] = ab8500->oldmask[i] = 0xff;
1703
1704         ret = ab8500_irq_init(ab8500, np);
1705         if (ret)
1706                 return ret;
1707
1708         ret = devm_request_threaded_irq(&pdev->dev, ab8500->irq, NULL,
1709                         ab8500_hierarchical_irq,
1710                         IRQF_ONESHOT | IRQF_NO_SUSPEND,
1711                         "ab8500", ab8500);
1712         if (ret)
1713                 return ret;
1714
1715         if (is_ab9540(ab8500))
1716                 ret = mfd_add_devices(ab8500->dev, 0, ab9540_devs,
1717                                 ARRAY_SIZE(ab9540_devs), NULL,
1718                                 ab8500->irq_base, ab8500->domain);
1719         else if (is_ab8540(ab8500))
1720                 ret = mfd_add_devices(ab8500->dev, 0, ab8540_devs,
1721                               ARRAY_SIZE(ab8540_devs), NULL,
1722                               ab8500->irq_base, ab8500->domain);
1723         else if (is_ab8505(ab8500))
1724                 ret = mfd_add_devices(ab8500->dev, 0, ab8505_devs,
1725                               ARRAY_SIZE(ab8505_devs), NULL,
1726                               ab8500->irq_base, ab8500->domain);
1727         else
1728                 ret = mfd_add_devices(ab8500->dev, 0, ab8500_devs,
1729                                 ARRAY_SIZE(ab8500_devs), NULL,
1730                                 ab8500->irq_base, ab8500->domain);
1731         if (ret)
1732                 return ret;
1733
1734         if (!no_bm) {
1735                 /* Add battery management devices */
1736                 ret = mfd_add_devices(ab8500->dev, 0, ab8500_bm_devs,
1737                                       ARRAY_SIZE(ab8500_bm_devs), NULL,
1738                                       ab8500->irq_base, ab8500->domain);
1739                 if (ret)
1740                         dev_err(ab8500->dev, "error adding bm devices\n");
1741         }
1742
1743         if (((is_ab8505(ab8500) || is_ab9540(ab8500)) &&
1744                         ab8500->chip_id >= AB8500_CUT2P0) || is_ab8540(ab8500))
1745                 ret = sysfs_create_group(&ab8500->dev->kobj,
1746                                         &ab9540_attr_group);
1747         else
1748                 ret = sysfs_create_group(&ab8500->dev->kobj,
1749                                         &ab8500_attr_group);
1750
1751         if ((is_ab8505(ab8500) || is_ab9540(ab8500)) &&
1752                         ab8500->chip_id >= AB8500_CUT2P0)
1753                 ret = sysfs_create_group(&ab8500->dev->kobj,
1754                                          &ab8505_attr_group);
1755
1756         if (ret)
1757                 dev_err(ab8500->dev, "error creating sysfs entries\n");
1758
1759         return ret;
1760 }
1761
1762 static int ab8500_remove(struct platform_device *pdev)
1763 {
1764         struct ab8500 *ab8500 = platform_get_drvdata(pdev);
1765
1766         if (((is_ab8505(ab8500) || is_ab9540(ab8500)) &&
1767                         ab8500->chip_id >= AB8500_CUT2P0) || is_ab8540(ab8500))
1768                 sysfs_remove_group(&ab8500->dev->kobj, &ab9540_attr_group);
1769         else
1770                 sysfs_remove_group(&ab8500->dev->kobj, &ab8500_attr_group);
1771
1772         if ((is_ab8505(ab8500) || is_ab9540(ab8500)) &&
1773                         ab8500->chip_id >= AB8500_CUT2P0)
1774                 sysfs_remove_group(&ab8500->dev->kobj, &ab8505_attr_group);
1775
1776         mfd_remove_devices(ab8500->dev);
1777
1778         return 0;
1779 }
1780
1781 static const struct platform_device_id ab8500_id[] = {
1782         { "ab8500-core", AB8500_VERSION_AB8500 },
1783         { "ab8505-i2c", AB8500_VERSION_AB8505 },
1784         { "ab9540-i2c", AB8500_VERSION_AB9540 },
1785         { "ab8540-i2c", AB8500_VERSION_AB8540 },
1786         { }
1787 };
1788
1789 static struct platform_driver ab8500_core_driver = {
1790         .driver = {
1791                 .name = "ab8500-core",
1792                 .owner = THIS_MODULE,
1793         },
1794         .probe  = ab8500_probe,
1795         .remove = ab8500_remove,
1796         .id_table = ab8500_id,
1797 };
1798
1799 static int __init ab8500_core_init(void)
1800 {
1801         return platform_driver_register(&ab8500_core_driver);
1802 }
1803
1804 static void __exit ab8500_core_exit(void)
1805 {
1806         platform_driver_unregister(&ab8500_core_driver);
1807 }
1808 core_initcall(ab8500_core_init);
1809 module_exit(ab8500_core_exit);
1810
1811 MODULE_AUTHOR("Mattias Wallin, Srinidhi Kasagar, Rabin Vincent");
1812 MODULE_DESCRIPTION("AB8500 MFD core");
1813 MODULE_LICENSE("GPL v2");