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