drivers/mfd/ab8500-debugfs.c

   1 /*
   2  * Copyright (C) ST-Ericsson SA 2010
   3  *
   4  * Author: Mattias Wallin <mattias.wallin@stericsson.com> for ST-Ericsson.
   5  * License Terms: GNU General Public License v2
   6  */
   7 /*
   8  * AB8500 register access
   9  * ======================
  10  *
  11  * read:
  12  * # echo BANK  >  <debugfs>/ab8500/register-bank
  13  * # echo ADDR  >  <debugfs>/ab8500/register-address
  14  * # cat <debugfs>/ab8500/register-value
  15  *
  16  * write:
  17  * # echo BANK  >  <debugfs>/ab8500/register-bank
  18  * # echo ADDR  >  <debugfs>/ab8500/register-address
  19  * # echo VALUE >  <debugfs>/ab8500/register-value
  20  *
  21  * read all registers from a bank:
  22  * # echo BANK  >  <debugfs>/ab8500/register-bank
  23  * # cat <debugfs>/ab8500/all-bank-register
  24  *
  25  * BANK   target AB8500 register bank
  26  * ADDR   target AB8500 register address
  27  * VALUE  decimal or 0x-prefixed hexadecimal
  28  *
  29  *
  30  * User Space notification on AB8500 IRQ
  31  * =====================================
  32  *
  33  * Allows user space entity to be notified when target AB8500 IRQ occurs.
  34  * When subscribed, a sysfs entry is created in ab8500.i2c platform device.
  35  * One can pool this file to get target IRQ occurence information.
  36  *
  37  * subscribe to an AB8500 IRQ:
  38  * # echo IRQ  >  <debugfs>/ab8500/irq-subscribe
  39  *
  40  * unsubscribe from an AB8500 IRQ:
  41  * # echo IRQ  >  <debugfs>/ab8500/irq-unsubscribe
  42  *
  43  *
  44  * AB8500 register formated read/write access
  45  * ==========================================
  46  *
  47  * Read:  read data, data>>SHIFT, data&=MASK, output data
  48  *        [0xABCDEF98] shift=12 mask=0xFFF => 0x00000CDE
  49  * Write: read data, data &= ~(MASK<<SHIFT), data |= (VALUE<<SHIFT), write data
  50  *        [0xABCDEF98] shift=12 mask=0xFFF value=0x123 => [0xAB123F98]
  51  *
  52  * Usage:
  53  * # echo "CMD [OPTIONS] BANK ADRESS [VALUE]" > $debugfs/ab8500/hwreg
  54  *
  55  * CMD      read      read access
  56  *          write     write access
  57  *
  58  * BANK     target reg bank
  59  * ADDRESS  target reg address
  60  * VALUE    (write) value to be updated
  61  *
  62  * OPTIONS
  63  *  -d|-dec            (read) output in decimal
  64  *  -h|-hexa           (read) output in 0x-hexa (default)
  65  *  -l|-w|-b           32bit (default), 16bit or 8bit reg access
  66  *  -m|-mask MASK      0x-hexa mask (default 0xFFFFFFFF)
  67  *  -s|-shift SHIFT    bit shift value (read:left, write:right)
  68  *  -o|-offset OFFSET  address offset to add to ADDRESS value
  69  *
  70  * Warning: bit shift operation is applied to bit-mask.
  71  * Warning: bit shift direction depends on read or right command.
  72  */
  73
  74 #include <linux/seq_file.h>
  75 #include <linux/uaccess.h>
  76 #include <linux/fs.h>
  77 #include <linux/module.h>
  78 #include <linux/debugfs.h>
  79 #include <linux/platform_device.h>
  80 #include <linux/interrupt.h>
  81 #include <linux/kobject.h>
  82 #include <linux/slab.h>
  83 #include <linux/irq.h>
  84
  85 #include <linux/mfd/abx500.h>
  86 #include <linux/mfd/abx500/ab8500.h>
  87 #include <linux/mfd/abx500/ab8500-gpadc.h>
  88
  89 #ifdef CONFIG_DEBUG_FS
  90 #include <linux/string.h>
  91 #include <linux/ctype.h>
  92 #endif
  93
  94 static u32 debug_bank;
  95 static u32 debug_address;
  96
  97 static int irq_ab8500;
  98 static int irq_first;
  99 static int irq_last;
 100 static u32 *irq_count;
 101 static int num_irqs;
 102
 103 static struct device_attribute **dev_attr;
 104 static char **event_name;
 105
 106 static u8 avg_sample = SAMPLE_16;
 107 static u8 trig_edge = RISING_EDGE;
 108 static u8 conv_type = ADC_SW;
 109 static u8 trig_timer;
 110
 111 /**
 112  * struct ab8500_reg_range
 113  * @first: the first address of the range
 114  * @last: the last address of the range
 115  * @perm: access permissions for the range
 116  */
 117 struct ab8500_reg_range {
 118         u8 first;
 119         u8 last;
 120         u8 perm;
 121 };
 122
 123 /**
 124  * struct ab8500_prcmu_ranges
 125  * @num_ranges: the number of ranges in the list
 126  * @bankid: bank identifier
 127  * @range: the list of register ranges
 128  */
 129 struct ab8500_prcmu_ranges {
 130         u8 num_ranges;
 131         u8 bankid;
 132         const struct ab8500_reg_range *range;
 133 };
 134
 135 /* hwreg- "mask" and "shift" entries ressources */
 136 struct hwreg_cfg {
 137         u32  bank;      /* target bank */
 138         unsigned long addr;      /* target address */
 139         uint fmt;       /* format */
 140         unsigned long mask; /* read/write mask, applied before any bit shift */
 141         long shift;     /* bit shift (read:right shift, write:left shift */
 142 };
 143 /* fmt bit #0: 0=hexa, 1=dec */
 144 #define REG_FMT_DEC(c) ((c)->fmt & 0x1)
 145 #define REG_FMT_HEX(c) (!REG_FMT_DEC(c))
 146
 147 static struct hwreg_cfg hwreg_cfg = {
 148         .addr = 0,                      /* default: invalid phys addr */
 149         .fmt = 0,                       /* default: 32bit access, hex output */
 150         .mask = 0xFFFFFFFF,     /* default: no mask */
 151         .shift = 0,                     /* default: no bit shift */
 152 };
 153
 154 #define AB8500_NAME_STRING "ab8500"
 155 #define AB8500_ADC_NAME_STRING "gpadc"
 156 #define AB8500_NUM_BANKS 24
 157
 158 #define AB8500_REV_REG 0x80
 159
 160 static struct ab8500_prcmu_ranges *debug_ranges;
 161
 162 static struct ab8500_prcmu_ranges ab8500_debug_ranges[AB8500_NUM_BANKS] = {
 163         [0x0] = {
 164                 .num_ranges = 0,
 165                 .range = NULL,
 166         },
 167         [AB8500_SYS_CTRL1_BLOCK] = {
 168                 .num_ranges = 3,
 169                 .range = (struct ab8500_reg_range[]) {
 170                         {
 171                                 .first = 0x00,
 172                                 .last = 0x02,
 173                         },
 174                         {
 175                                 .first = 0x42,
 176                                 .last = 0x42,
 177                         },
 178                         {
 179                                 .first = 0x80,
 180                                 .last = 0x81,
 181                         },
 182                 },
 183         },
 184         [AB8500_SYS_CTRL2_BLOCK] = {
 185                 .num_ranges = 4,
 186                 .range = (struct ab8500_reg_range[]) {
 187                         {
 188                                 .first = 0x00,
 189                                 .last = 0x0D,
 190                         },
 191                         {
 192                                 .first = 0x0F,
 193                                 .last = 0x17,
 194                         },
 195                         {
 196                                 .first = 0x30,
 197                                 .last = 0x30,
 198                         },
 199                         {
 200                                 .first = 0x32,
 201                                 .last = 0x33,
 202                         },
 203                 },
 204         },
 205         [AB8500_REGU_CTRL1] = {
 206                 .num_ranges = 3,
 207                 .range = (struct ab8500_reg_range[]) {
 208                         {
 209                                 .first = 0x00,
 210                                 .last = 0x00,
 211                         },
 212                         {
 213                                 .first = 0x03,
 214                                 .last = 0x10,
 215                         },
 216                         {
 217                                 .first = 0x80,
 218                                 .last = 0x84,
 219                         },
 220                 },
 221         },
 222         [AB8500_REGU_CTRL2] = {
 223                 .num_ranges = 5,
 224                 .range = (struct ab8500_reg_range[]) {
 225                         {
 226                                 .first = 0x00,
 227                                 .last = 0x15,
 228                         },
 229                         {
 230                                 .first = 0x17,
 231                                 .last = 0x19,
 232                         },
 233                         {
 234                                 .first = 0x1B,
 235                                 .last = 0x1D,
 236                         },
 237                         {
 238                                 .first = 0x1F,
 239                                 .last = 0x22,
 240                         },
 241                         {
 242                                 .first = 0x40,
 243                                 .last = 0x44,
 244                         },
 245                         /* 0x80-0x8B is SIM registers and should
 246                          * not be accessed from here */
 247                 },
 248         },
 249         [AB8500_USB] = {
 250                 .num_ranges = 2,
 251                 .range = (struct ab8500_reg_range[]) {
 252                         {
 253                                 .first = 0x80,
 254                                 .last = 0x83,
 255                         },
 256                         {
 257                                 .first = 0x87,
 258                                 .last = 0x8A,
 259                         },
 260                 },
 261         },
 262         [AB8500_TVOUT] = {
 263                 .num_ranges = 9,
 264                 .range = (struct ab8500_reg_range[]) {
 265                         {
 266                                 .first = 0x00,
 267                                 .last = 0x12,
 268                         },
 269                         {
 270                                 .first = 0x15,
 271                                 .last = 0x17,
 272                         },
 273                         {
 274                                 .first = 0x19,
 275                                 .last = 0x21,
 276                         },
 277                         {
 278                                 .first = 0x27,
 279                                 .last = 0x2C,
 280                         },
 281                         {
 282                                 .first = 0x41,
 283                                 .last = 0x41,
 284                         },
 285                         {
 286                                 .first = 0x45,
 287                                 .last = 0x5B,
 288                         },
 289                         {
 290                                 .first = 0x5D,
 291                                 .last = 0x5D,
 292                         },
 293                         {
 294                                 .first = 0x69,
 295                                 .last = 0x69,
 296                         },
 297                         {
 298                                 .first = 0x80,
 299                                 .last = 0x81,
 300                         },
 301                 },
 302         },
 303         [AB8500_DBI] = {
 304                 .num_ranges = 0,
 305                 .range = NULL,
 306         },
 307         [AB8500_ECI_AV_ACC] = {
 308                 .num_ranges = 1,
 309                 .range = (struct ab8500_reg_range[]) {
 310                         {
 311                                 .first = 0x80,
 312                                 .last = 0x82,
 313                         },
 314                 },
 315         },
 316         [0x9] = {
 317                 .num_ranges = 0,
 318                 .range = NULL,
 319         },
 320         [AB8500_GPADC] = {
 321                 .num_ranges = 1,
 322                 .range = (struct ab8500_reg_range[]) {
 323                         {
 324                                 .first = 0x00,
 325                                 .last = 0x08,
 326                         },
 327                 },
 328         },
 329         [AB8500_CHARGER] = {
 330                 .num_ranges = 9,
 331                 .range = (struct ab8500_reg_range[]) {
 332                         {
 333                                 .first = 0x00,
 334                                 .last = 0x03,
 335                         },
 336                         {
 337                                 .first = 0x05,
 338                                 .last = 0x05,
 339                         },
 340                         {
 341                                 .first = 0x40,
 342                                 .last = 0x40,
 343                         },
 344                         {
 345                                 .first = 0x42,
 346                                 .last = 0x42,
 347                         },
 348                         {
 349                                 .first = 0x44,
 350                                 .last = 0x44,
 351                         },
 352                         {
 353                                 .first = 0x50,
 354                                 .last = 0x55,
 355                         },
 356                         {
 357                                 .first = 0x80,
 358                                 .last = 0x82,
 359                         },
 360                         {
 361                                 .first = 0xC0,
 362                                 .last = 0xC2,
 363                         },
 364                         {
 365                                 .first = 0xf5,
 366                                 .last = 0xf6,
 367                         },
 368                 },
 369         },
 370         [AB8500_GAS_GAUGE] = {
 371                 .num_ranges = 3,
 372                 .range = (struct ab8500_reg_range[]) {
 373                         {
 374                                 .first = 0x00,
 375                                 .last = 0x00,
 376                         },
 377                         {
 378                                 .first = 0x07,
 379                                 .last = 0x0A,
 380                         },
 381                         {
 382                                 .first = 0x10,
 383                                 .last = 0x14,
 384                         },
 385                 },
 386         },
 387         [AB8500_DEVELOPMENT] = {
 388                 .num_ranges = 1,
 389                 .range = (struct ab8500_reg_range[]) {
 390                         {
 391                                 .first = 0x00,
 392                                 .last = 0x00,
 393                         },
 394                 },
 395         },
 396         [AB8500_DEBUG] = {
 397                 .num_ranges = 1,
 398                 .range = (struct ab8500_reg_range[]) {
 399                         {
 400                                 .first = 0x05,
 401                                 .last = 0x07,
 402                         },
 403                 },
 404         },
 405         [AB8500_AUDIO] = {
 406                 .num_ranges = 1,
 407                 .range = (struct ab8500_reg_range[]) {
 408                         {
 409                                 .first = 0x00,
 410                                 .last = 0x6F,
 411                         },
 412                 },
 413         },
 414         [AB8500_INTERRUPT] = {
 415                 .num_ranges = 0,
 416                 .range = NULL,
 417         },
 418         [AB8500_RTC] = {
 419                 .num_ranges = 1,
 420                 .range = (struct ab8500_reg_range[]) {
 421                         {
 422                                 .first = 0x00,
 423                                 .last = 0x0F,
 424                         },
 425                 },
 426         },
 427         [AB8500_MISC] = {
 428                 .num_ranges = 8,
 429                 .range = (struct ab8500_reg_range[]) {
 430                         {
 431                                 .first = 0x00,
 432                                 .last = 0x05,
 433                         },
 434                         {
 435                                 .first = 0x10,
 436                                 .last = 0x15,
 437                         },
 438                         {
 439                                 .first = 0x20,
 440                                 .last = 0x25,
 441                         },
 442                         {
 443                                 .first = 0x30,
 444                                 .last = 0x35,
 445                         },
 446                         {
 447                                 .first = 0x40,
 448                                 .last = 0x45,
 449                         },
 450                         {
 451                                 .first = 0x50,
 452                                 .last = 0x50,
 453                         },
 454                         {
 455                                 .first = 0x60,
 456                                 .last = 0x67,
 457                         },
 458                         {
 459                                 .first = 0x80,
 460                                 .last = 0x80,
 461                         },
 462                 },
 463         },
 464         [0x11] = {
 465                 .num_ranges = 0,
 466                 .range = NULL,
 467         },
 468         [0x12] = {
 469                 .num_ranges = 0,
 470                 .range = NULL,
 471         },
 472         [0x13] = {
 473                 .num_ranges = 0,
 474                 .range = NULL,
 475         },
 476         [0x14] = {
 477                 .num_ranges = 0,
 478                 .range = NULL,
 479         },
 480         [AB8500_OTP_EMUL] = {
 481                 .num_ranges = 1,
 482                 .range = (struct ab8500_reg_range[]) {
 483                         {
 484                                 .first = 0x01,
 485                                 .last = 0x0F,
 486                         },
 487                 },
 488         },
 489 };
 490
 491 static struct ab8500_prcmu_ranges ab8505_debug_ranges[AB8500_NUM_BANKS] = {
 492         [0x0] = {
 493                 .num_ranges = 0,
 494                 .range = NULL,
 495         },
 496         [AB8500_SYS_CTRL1_BLOCK] = {
 497                 .num_ranges = 5,
 498                 .range = (struct ab8500_reg_range[]) {
 499                         {
 500                                 .first = 0x00,
 501                                 .last = 0x04,
 502                         },
 503                         {
 504                                 .first = 0x42,
 505                                 .last = 0x42,
 506                         },
 507                         {
 508                                 .first = 0x52,
 509                                 .last = 0x52,
 510                         },
 511                         {
 512                                 .first = 0x54,
 513                                 .last = 0x57,
 514                         },
 515                         {
 516                                 .first = 0x80,
 517                                 .last = 0x83,
 518                         },
 519                 },
 520         },
 521         [AB8500_SYS_CTRL2_BLOCK] = {
 522                 .num_ranges = 5,
 523                 .range = (struct ab8500_reg_range[]) {
 524                         {
 525                                 .first = 0x00,
 526                                 .last = 0x0D,
 527                         },
 528                         {
 529                                 .first = 0x0F,
 530                                 .last = 0x17,
 531                         },
 532                         {
 533                                 .first = 0x20,
 534                                 .last = 0x20,
 535                         },
 536                         {
 537                                 .first = 0x30,
 538                                 .last = 0x30,
 539                         },
 540                         {
 541                                 .first = 0x32,
 542                                 .last = 0x3A,
 543                         },
 544                 },
 545         },
 546         [AB8500_REGU_CTRL1] = {
 547                 .num_ranges = 3,
 548                 .range = (struct ab8500_reg_range[]) {
 549                         {
 550                                 .first = 0x00,
 551                                 .last = 0x00,
 552                         },
 553                         {
 554                                 .first = 0x03,
 555                                 .last = 0x11,
 556                         },
 557                         {
 558                                 .first = 0x80,
 559                                 .last = 0x86,
 560                         },
 561                 },
 562         },
 563         [AB8500_REGU_CTRL2] = {
 564                 .num_ranges = 6,
 565                 .range = (struct ab8500_reg_range[]) {
 566                         {
 567                                 .first = 0x00,
 568                                 .last = 0x06,
 569                         },
 570                         {
 571                                 .first = 0x08,
 572                                 .last = 0x15,
 573                         },
 574                         {
 575                                 .first = 0x17,
 576                                 .last = 0x19,
 577                         },
 578                         {
 579                                 .first = 0x1B,
 580                                 .last = 0x1D,
 581                         },
 582                         {
 583                                 .first = 0x1F,
 584                                 .last = 0x30,
 585                         },
 586                         {
 587                                 .first = 0x40,
 588                                 .last = 0x48,
 589                         },
 590                         /* 0x80-0x8B is SIM registers and should
 591                          * not be accessed from here */
 592                 },
 593         },
 594         [AB8500_USB] = {
 595                 .num_ranges = 3,
 596                 .range = (struct ab8500_reg_range[]) {
 597                         {
 598                                 .first = 0x80,
 599                                 .last = 0x83,
 600                         },
 601                         {
 602                                 .first = 0x87,
 603                                 .last = 0x8A,
 604                         },
 605                         {
 606                                 .first = 0x91,
 607                                 .last = 0x94,
 608                         },
 609                 },
 610         },
 611         [AB8500_TVOUT] = {
 612                 .num_ranges = 0,
 613                 .range = NULL,
 614         },
 615         [AB8500_DBI] = {
 616                 .num_ranges = 0,
 617                 .range = NULL,
 618         },
 619         [AB8500_ECI_AV_ACC] = {
 620                 .num_ranges = 1,
 621                 .range = (struct ab8500_reg_range[]) {
 622                         {
 623                                 .first = 0x80,
 624                                 .last = 0x82,
 625                         },
 626                 },
 627         },
 628         [AB8500_RESERVED] = {
 629                 .num_ranges = 0,
 630                 .range = NULL,
 631         },
 632         [AB8500_GPADC] = {
 633                 .num_ranges = 1,
 634                 .range = (struct ab8500_reg_range[]) {
 635                         {
 636                                 .first = 0x00,
 637                                 .last = 0x08,
 638                         },
 639                 },
 640         },
 641         [AB8500_CHARGER] = {
 642                 .num_ranges = 9,
 643                 .range = (struct ab8500_reg_range[]) {
 644                         {
 645                                 .first = 0x02,
 646                                 .last = 0x03,
 647                         },
 648                         {
 649                                 .first = 0x05,
 650                                 .last = 0x05,
 651                         },
 652                         {
 653                                 .first = 0x40,
 654                                 .last = 0x44,
 655                         },
 656                         {
 657                                 .first = 0x50,
 658                                 .last = 0x57,
 659                         },
 660                         {
 661                                 .first = 0x60,
 662                                 .last = 0x60,
 663                         },
 664                         {
 665                                 .first = 0xA0,
 666                                 .last = 0xA7,
 667                         },
 668                         {
 669                                 .first = 0xAF,
 670                                 .last = 0xB2,
 671                         },
 672                         {
 673                                 .first = 0xC0,
 674                                 .last = 0xC2,
 675                         },
 676                         {
 677                                 .first = 0xF5,
 678                                 .last = 0xF5,
 679                         },
 680                 },
 681         },
 682         [AB8500_GAS_GAUGE] = {
 683                 .num_ranges = 3,
 684                 .range = (struct ab8500_reg_range[]) {
 685                         {
 686                                 .first = 0x00,
 687                                 .last = 0x00,
 688                         },
 689                         {
 690                                 .first = 0x07,
 691                                 .last = 0x0A,
 692                         },
 693                         {
 694                                 .first = 0x10,
 695                                 .last = 0x14,
 696                         },
 697                 },
 698         },
 699         [AB8500_AUDIO] = {
 700                 .num_ranges = 1,
 701                 .range = (struct ab8500_reg_range[]) {
 702                         {
 703                                 .first = 0x00,
 704                                 .last = 0x83,
 705                         },
 706                 },
 707         },
 708         [AB8500_INTERRUPT] = {
 709                 .num_ranges = 11,
 710                 .range = (struct ab8500_reg_range[]) {
 711                         {
 712                                 .first = 0x00,
 713                                 .last = 0x04,
 714                         },
 715                         {
 716                                 .first = 0x06,
 717                                 .last = 0x07,
 718                         },
 719                         {
 720                                 .first = 0x09,
 721                                 .last = 0x09,
 722                         },
 723                         {
 724                                 .first = 0x0B,
 725                                 .last = 0x0C,
 726                         },
 727                         {
 728                                 .first = 0x12,
 729                                 .last = 0x15,
 730                         },
 731                         {
 732                                 .first = 0x18,
 733                                 .last = 0x18,
 734                         },
 735                         /* Latch registers should not be read here */
 736                         {
 737                                 .first = 0x40,
 738                                 .last = 0x44,
 739                         },
 740                         {
 741                                 .first = 0x46,
 742                                 .last = 0x49,
 743                         },
 744                         {
 745                                 .first = 0x4B,
 746                                 .last = 0x4D,
 747                         },
 748                         {
 749                                 .first = 0x52,
 750                                 .last = 0x55,
 751                         },
 752                         {
 753                                 .first = 0x58,
 754                                 .last = 0x58,
 755                         },
 756                         /* LatchHier registers should not be read here */
 757                 },
 758         },
 759         [AB8500_RTC] = {
 760                 .num_ranges = 2,
 761                 .range = (struct ab8500_reg_range[]) {
 762                         {
 763                                 .first = 0x00,
 764                                 .last = 0x14,
 765                         },
 766                         {
 767                                 .first = 0x16,
 768                                 .last = 0x17,
 769                         },
 770                 },
 771         },
 772         [AB8500_MISC] = {
 773                 .num_ranges = 8,
 774                 .range = (struct ab8500_reg_range[]) {
 775                         {
 776                                 .first = 0x00,
 777                                 .last = 0x06,
 778                         },
 779                         {
 780                                 .first = 0x10,
 781                                 .last = 0x16,
 782                         },
 783                         {
 784                                 .first = 0x20,
 785                                 .last = 0x26,
 786                         },
 787                         {
 788                                 .first = 0x30,
 789                                 .last = 0x36,
 790                         },
 791                         {
 792                                 .first = 0x40,
 793                                 .last = 0x46,
 794                         },
 795                         {
 796                                 .first = 0x50,
 797                                 .last = 0x50,
 798                         },
 799                         {
 800                                 .first = 0x60,
 801                                 .last = 0x6B,
 802                         },
 803                         {
 804                                 .first = 0x80,
 805                                 .last = 0x82,
 806                         },
 807                 },
 808         },
 809         [AB8500_DEVELOPMENT] = {
 810                 .num_ranges = 2,
 811                 .range = (struct ab8500_reg_range[]) {
 812                         {
 813                                 .first = 0x00,
 814                                 .last = 0x00,
 815                         },
 816                         {
 817                                 .first = 0x05,
 818                                 .last = 0x05,
 819                         },
 820                 },
 821         },
 822         [AB8500_DEBUG] = {
 823                 .num_ranges = 1,
 824                 .range = (struct ab8500_reg_range[]) {
 825                         {
 826                                 .first = 0x05,
 827                                 .last = 0x07,
 828                         },
 829                 },
 830         },
 831         [AB8500_PROD_TEST] = {
 832                 .num_ranges = 0,
 833                 .range = NULL,
 834         },
 835         [AB8500_STE_TEST] = {
 836                 .num_ranges = 0,
 837                 .range = NULL,
 838         },
 839         [AB8500_OTP_EMUL] = {
 840                 .num_ranges = 1,
 841                 .range = (struct ab8500_reg_range[]) {
 842                         {
 843                                 .first = 0x01,
 844                                 .last = 0x15,
 845                         },
 846                 },
 847         },
 848 };
 849
 850 static struct ab8500_prcmu_ranges ab8540_debug_ranges[AB8500_NUM_BANKS] = {
 851         [AB8500_M_FSM_RANK] = {
 852                 .num_ranges = 1,
 853                 .range = (struct ab8500_reg_range[]) {
 854                         {
 855                                 .first = 0x00,
 856                                 .last = 0x0B,
 857                         },
 858                 },
 859         },
 860         [AB8500_SYS_CTRL1_BLOCK] = {
 861                 .num_ranges = 6,
 862                 .range = (struct ab8500_reg_range[]) {
 863                         {
 864                                 .first = 0x00,
 865                                 .last = 0x04,
 866                         },
 867                         {
 868                                 .first = 0x42,
 869                                 .last = 0x42,
 870                         },
 871                         {
 872                                 .first = 0x50,
 873                                 .last = 0x54,
 874                         },
 875                         {
 876                                 .first = 0x57,
 877                                 .last = 0x57,
 878                         },
 879                         {
 880                                 .first = 0x80,
 881                                 .last = 0x83,
 882                         },
 883                         {
 884                                 .first = 0x90,
 885                                 .last = 0x90,
 886                         },
 887                 },
 888         },
 889         [AB8500_SYS_CTRL2_BLOCK] = {
 890                 .num_ranges = 5,
 891                 .range = (struct ab8500_reg_range[]) {
 892                         {
 893                                 .first = 0x00,
 894                                 .last = 0x0D,
 895                         },
 896                         {
 897                                 .first = 0x0F,
 898                                 .last = 0x10,
 899                         },
 900                         {
 901                                 .first = 0x20,
 902                                 .last = 0x21,
 903                         },
 904                         {
 905                                 .first = 0x32,
 906                                 .last = 0x3C,
 907                         },
 908                         {
 909                                 .first = 0x40,
 910                                 .last = 0x42,
 911                         },
 912                 },
 913         },
 914         [AB8500_REGU_CTRL1] = {
 915                 .num_ranges = 4,
 916                 .range = (struct ab8500_reg_range[]) {
 917                         {
 918                                 .first = 0x03,
 919                                 .last = 0x15,
 920                         },
 921                         {
 922                                 .first = 0x20,
 923                                 .last = 0x20,
 924                         },
 925                         {
 926                                 .first = 0x80,
 927                                 .last = 0x85,
 928                         },
 929                         {
 930                                 .first = 0x87,
 931                                 .last = 0x88,
 932                         },
 933                 },
 934         },
 935         [AB8500_REGU_CTRL2] = {
 936                 .num_ranges = 8,
 937                 .range = (struct ab8500_reg_range[]) {
 938                         {
 939                                 .first = 0x00,
 940                                 .last = 0x06,
 941                         },
 942                         {
 943                                 .first = 0x08,
 944                                 .last = 0x15,
 945                         },
 946                         {
 947                                 .first = 0x17,
 948                                 .last = 0x19,
 949                         },
 950                         {
 951                                 .first = 0x1B,
 952                                 .last = 0x1D,
 953                         },
 954                         {
 955                                 .first = 0x1F,
 956                                 .last = 0x2F,
 957                         },
 958                         {
 959                                 .first = 0x31,
 960                                 .last = 0x3A,
 961                         },
 962                         {
 963                                 .first = 0x43,
 964                                 .last = 0x44,
 965                         },
 966                         {
 967                                 .first = 0x48,
 968                                 .last = 0x49,
 969                         },
 970                 },
 971         },
 972         [AB8500_USB] = {
 973                 .num_ranges = 3,
 974                 .range = (struct ab8500_reg_range[]) {
 975                         {
 976                                 .first = 0x80,
 977                                 .last = 0x83,
 978                         },
 979                         {
 980                                 .first = 0x87,
 981                                 .last = 0x8A,
 982                         },
 983                         {
 984                                 .first = 0x91,
 985                                 .last = 0x94,
 986                         },
 987                 },
 988         },
 989         [AB8500_TVOUT] = {
 990                 .num_ranges = 0,
 991                 .range = NULL
 992         },
 993         [AB8500_DBI] = {
 994                 .num_ranges = 4,
 995                 .range = (struct ab8500_reg_range[]) {
 996                         {
 997                                 .first = 0x00,
 998                                 .last = 0x07,
 999                         },
1000                         {
1001                                 .first = 0x10,
1002                                 .last = 0x11,
1003                         },
1004                         {
1005                                 .first = 0x20,
1006                                 .last = 0x21,
1007                         },
1008                         {
1009                                 .first = 0x30,
1010                                 .last = 0x43,
1011                         },
1012                 },
1013         },
1014         [AB8500_ECI_AV_ACC] = {
1015                 .num_ranges = 2,
1016                 .range = (struct ab8500_reg_range[]) {
1017                         {
1018                                 .first = 0x00,
1019                                 .last = 0x03,
1020                         },
1021                         {
1022                                 .first = 0x80,
1023                                 .last = 0x82,
1024                         },
1025                 },
1026         },
1027         [AB8500_RESERVED] = {
1028                 .num_ranges = 0,
1029                 .range = NULL,
1030         },
1031         [AB8500_GPADC] = {
1032                 .num_ranges = 4,
1033                 .range = (struct ab8500_reg_range[]) {
1034                         {
1035                                 .first = 0x00,
1036                                 .last = 0x01,
1037                         },
1038                         {
1039                                 .first = 0x04,
1040                                 .last = 0x06,
1041                         },
1042                         {
1043                                 .first = 0x09,
1044                                 .last = 0x0A,
1045                         },
1046                         {
1047                                 .first = 0x10,
1048                                 .last = 0x14,
1049                         },
1050                 },
1051         },
1052         [AB8500_CHARGER] = {
1053                 .num_ranges = 10,
1054                 .range = (struct ab8500_reg_range[]) {
1055                         {
1056                                 .first = 0x00,
1057                                 .last = 0x00,
1058                         },
1059                         {
1060                                 .first = 0x02,
1061                                 .last = 0x05,
1062                         },
1063                         {
1064                                 .first = 0x40,
1065                                 .last = 0x44,
1066                         },
1067                         {
1068                                 .first = 0x50,
1069                                 .last = 0x57,
1070                         },
1071                         {
1072                                 .first = 0x60,
1073                                 .last = 0x60,
1074                         },
1075                         {
1076                                 .first = 0x70,
1077                                 .last = 0x70,
1078                         },
1079                         {
1080                                 .first = 0xA0,
1081                                 .last = 0xA9,
1082                         },
1083                         {
1084                                 .first = 0xAF,
1085                                 .last = 0xB2,
1086                         },
1087                         {
1088                                 .first = 0xC0,
1089                                 .last = 0xC6,
1090                         },
1091                         {
1092                                 .first = 0xF5,
1093                                 .last = 0xF5,
1094                         },
1095                 },
1096         },
1097         [AB8500_GAS_GAUGE] = {
1098                 .num_ranges = 3,
1099                 .range = (struct ab8500_reg_range[]) {
1100                         {
1101                                 .first = 0x00,
1102                                 .last = 0x00,
1103                         },
1104                         {
1105                                 .first = 0x07,
1106                                 .last = 0x0A,
1107                         },
1108                         {
1109                                 .first = 0x10,
1110                                 .last = 0x14,
1111                         },
1112                 },
1113         },
1114         [AB8500_AUDIO] = {
1115                 .num_ranges = 1,
1116                 .range = (struct ab8500_reg_range[]) {
1117                         {
1118                                 .first = 0x00,
1119                                 .last = 0x9f,
1120                         },
1121                 },
1122         },
1123         [AB8500_INTERRUPT] = {
1124                 .num_ranges = 6,
1125                 .range = (struct ab8500_reg_range[]) {
1126                         {
1127                                 .first = 0x00,
1128                                 .last = 0x05,
1129                         },
1130                         {
1131                                 .first = 0x0B,
1132                                 .last = 0x0D,
1133                         },
1134                         {
1135                                 .first = 0x12,
1136                                 .last = 0x20,
1137                         },
1138                         /* Latch registers should not be read here */
1139                         {
1140                                 .first = 0x40,
1141                                 .last = 0x45,
1142                         },
1143                         {
1144                                 .first = 0x4B,
1145                                 .last = 0x4D,
1146                         },
1147                         {
1148                                 .first = 0x52,
1149                                 .last = 0x60,
1150                         },
1151                         /* LatchHier registers should not be read here */
1152                 },
1153         },
1154         [AB8500_RTC] = {
1155                 .num_ranges = 3,
1156                 .range = (struct ab8500_reg_range[]) {
1157                         {
1158                                 .first = 0x00,
1159                                 .last = 0x07,
1160                         },
1161                         {
1162                                 .first = 0x0B,
1163                                 .last = 0x18,
1164                         },
1165                         {
1166                                 .first = 0x20,
1167                                 .last = 0x25,
1168                         },
1169                 },
1170         },
1171         [AB8500_MISC] = {
1172                 .num_ranges = 9,
1173                 .range = (struct ab8500_reg_range[]) {
1174                         {
1175                                 .first = 0x00,
1176                                 .last = 0x06,
1177                         },
1178                         {
1179                                 .first = 0x10,
1180                                 .last = 0x16,
1181                         },
1182                         {
1183                                 .first = 0x20,
1184                                 .last = 0x26,
1185                         },
1186                         {
1187                                 .first = 0x30,
1188                                 .last = 0x36,
1189                         },
1190                         {
1191                                 .first = 0x40,
1192                                 .last = 0x49,
1193                         },
1194                         {
1195                                 .first = 0x50,
1196                                 .last = 0x50,
1197                         },
1198                         {
1199                                 .first = 0x60,
1200                                 .last = 0x6B,
1201                         },
1202                         {
1203                                 .first = 0x70,
1204                                 .last = 0x74,
1205                         },
1206                         {
1207                                 .first = 0x80,
1208                                 .last = 0x82,
1209                         },
1210                 },
1211         },
1212         [AB8500_DEVELOPMENT] = {
1213                 .num_ranges = 3,
1214                 .range = (struct ab8500_reg_range[]) {
1215                         {
1216                                 .first = 0x00,
1217                                 .last = 0x01,
1218                         },
1219                         {
1220                                 .first = 0x06,
1221                                 .last = 0x06,
1222                         },
1223                         {
1224                                 .first = 0x10,
1225                                 .last = 0x21,
1226                         },
1227                 },
1228         },
1229         [AB8500_DEBUG] = {
1230                 .num_ranges = 3,
1231                 .range = (struct ab8500_reg_range[]) {
1232                         {
1233                                 .first = 0x01,
1234                                 .last = 0x0C,
1235                         },
1236                         {
1237                                 .first = 0x0E,
1238                                 .last = 0x11,
1239                         },
1240                         {
1241                                 .first = 0x80,
1242                                 .last = 0x81,
1243                         },
1244                 },
1245         },
1246         [AB8500_PROD_TEST] = {
1247                 .num_ranges = 0,
1248                 .range = NULL,
1249         },
1250         [AB8500_STE_TEST] = {
1251                 .num_ranges = 0,
1252                 .range = NULL,
1253         },
1254         [AB8500_OTP_EMUL] = {
1255                 .num_ranges = 1,
1256                 .range = (struct ab8500_reg_range[]) {
1257                         {
1258                                 .first = 0x00,
1259                                 .last = 0x3F,
1260                         },
1261                 },
1262         },
1263 };
1264
1265
1266 static irqreturn_t ab8500_debug_handler(int irq, void *data)
1267 {
1268         char buf[16];
1269         struct kobject *kobj = (struct kobject *)data;
1270         unsigned int irq_abb = irq - irq_first;
1271
1272         if (irq_abb < num_irqs)
1273                 irq_count[irq_abb]++;
1274         /*
1275          * This makes it possible to use poll for events (POLLPRI | POLLERR)
1276          * from userspace on sysfs file named <irq-nr>
1277          */
1278         sprintf(buf, "%d", irq);
1279         sysfs_notify(kobj, NULL, buf);
1280
1281         return IRQ_HANDLED;
1282 }
1283
1284 /* Prints to seq_file or log_buf */
1285 static int ab8500_registers_print(struct device *dev, u32 bank,
1286                                 struct seq_file *s)
1287 {
1288         unsigned int i;
1289
1290         for (i = 0; i < debug_ranges[bank].num_ranges; i++) {
1291                 u32 reg;
1292
1293                 for (reg = debug_ranges[bank].range[i].first;
1294                         reg <= debug_ranges[bank].range[i].last;
1295                         reg++) {
1296                         u8 value;
1297                         int err;
1298
1299                         err = abx500_get_register_interruptible(dev,
1300                                 (u8)bank, (u8)reg, &value);
1301                         if (err < 0) {
1302                                 dev_err(dev, "ab->read fail %d\n", err);
1303                                 return err;
1304                         }
1305
1306                         if (s) {
1307                                 err = seq_printf(s,
1308                                                  "  [0x%02X/0x%02X]: 0x%02X\n",
1309                                                  bank, reg, value);
1310                                 if (err < 0) {
1311                                         /* Error is not returned here since
1312                                          * the output is wanted in any case */
1313                                         return 0;
1314                                 }
1315                         } else {
1316                                 dev_info(dev, " [0x%02X/0x%02X]: 0x%02X\n",
1317                                          bank, reg, value);
1318                         }
1319                 }
1320         }
1321         return 0;
1322 }
1323
1324 static int ab8500_print_bank_registers(struct seq_file *s, void *p)
1325 {
1326         struct device *dev = s->private;
1327         u32 bank = debug_bank;
1328
1329         seq_puts(s, AB8500_NAME_STRING " register values:\n");
1330
1331         seq_printf(s, " bank 0x%02X:\n", bank);
1332
1333         ab8500_registers_print(dev, bank, s);
1334         return 0;
1335 }
1336
1337 static int ab8500_registers_open(struct inode *inode, struct file *file)
1338 {
1339         return single_open(file, ab8500_print_bank_registers, inode->i_private);
1340 }
1341
1342 static const struct file_operations ab8500_registers_fops = {
1343         .open = ab8500_registers_open,
1344         .read = seq_read,
1345         .llseek = seq_lseek,
1346         .release = single_release,
1347         .owner = THIS_MODULE,
1348 };
1349
1350 static int ab8500_print_all_banks(struct seq_file *s, void *p)
1351 {
1352         struct device *dev = s->private;
1353         unsigned int i;
1354
1355         seq_puts(s, AB8500_NAME_STRING " register values:\n");
1356
1357         for (i = 0; i < AB8500_NUM_BANKS; i++) {
1358                 seq_printf(s, " bank 0x%02X:\n", i);
1359
1360                 ab8500_registers_print(dev, i, s);
1361         }
1362         return 0;
1363 }
1364
1365 /* Dump registers to kernel log */
1366 void ab8500_dump_all_banks(struct device *dev)
1367 {
1368         unsigned int i;
1369
1370         dev_info(dev, "ab8500 register values:\n");
1371
1372         for (i = 1; i < AB8500_NUM_BANKS; i++) {
1373                 dev_info(dev, " bank 0x%02X:\n", i);
1374                 ab8500_registers_print(dev, i, NULL);
1375         }
1376 }
1377
1378 /* Space for 500 registers. */
1379 #define DUMP_MAX_REGS 700
1380 static struct ab8500_register_dump
1381 {
1382         u8 bank;
1383         u8 reg;
1384         u8 value;
1385 } ab8500_complete_register_dump[DUMP_MAX_REGS];
1386
1387 /* This shall only be called upon kernel panic! */
1388 void ab8500_dump_all_banks_to_mem(void)
1389 {
1390         int i, r = 0;
1391         u8 bank;
1392         int err = 0;
1393
1394         pr_info("Saving all ABB registers for crash analysis.\n");
1395
1396         for (bank = 0; bank < AB8500_NUM_BANKS; bank++) {
1397                 for (i = 0; i < debug_ranges[bank].num_ranges; i++) {
1398                         u8 reg;
1399
1400                         for (reg = debug_ranges[bank].range[i].first;
1401                              reg <= debug_ranges[bank].range[i].last;
1402                              reg++) {
1403                                 u8 value;
1404
1405                                 err = prcmu_abb_read(bank, reg, &value, 1);
1406
1407                                 if (err < 0)
1408                                         goto out;
1409
1410                                 ab8500_complete_register_dump[r].bank = bank;
1411                                 ab8500_complete_register_dump[r].reg = reg;
1412                                 ab8500_complete_register_dump[r].value = value;
1413
1414                                 r++;
1415
1416                                 if (r >= DUMP_MAX_REGS) {
1417                                         pr_err("%s: too many register to dump!\n",
1418                                                 __func__);
1419                                         err = -EINVAL;
1420                                         goto out;
1421                                 }
1422                         }
1423                 }
1424         }
1425 out:
1426         if (err >= 0)
1427                 pr_info("Saved all ABB registers.\n");
1428         else
1429                 pr_info("Failed to save all ABB registers.\n");
1430 }
1431
1432 static int ab8500_all_banks_open(struct inode *inode, struct file *file)
1433 {
1434         struct seq_file *s;
1435         int err;
1436
1437         err = single_open(file, ab8500_print_all_banks, inode->i_private);
1438         if (!err) {
1439                 /* Default buf size in seq_read is not enough */
1440                 s = (struct seq_file *)file->private_data;
1441                 s->size = (PAGE_SIZE * 2);
1442                 s->buf = kmalloc(s->size, GFP_KERNEL);
1443                 if (!s->buf) {
1444                         single_release(inode, file);
1445                         err = -ENOMEM;
1446                 }
1447         }
1448         return err;
1449 }
1450
1451 static const struct file_operations ab8500_all_banks_fops = {
1452         .open = ab8500_all_banks_open,
1453         .read = seq_read,
1454         .llseek = seq_lseek,
1455         .release = single_release,
1456         .owner = THIS_MODULE,
1457 };
1458
1459 static int ab8500_bank_print(struct seq_file *s, void *p)
1460 {
1461         return seq_printf(s, "0x%02X\n", debug_bank);
1462 }
1463
1464 static int ab8500_bank_open(struct inode *inode, struct file *file)
1465 {
1466         return single_open(file, ab8500_bank_print, inode->i_private);
1467 }
1468
1469 static ssize_t ab8500_bank_write(struct file *file,
1470         const char __user *user_buf,
1471         size_t count, loff_t *ppos)
1472 {
1473         struct device *dev = ((struct seq_file *)(file->private_data))->private;
1474         unsigned long user_bank;
1475         int err;
1476
1477         err = kstrtoul_from_user(user_buf, count, 0, &user_bank);
1478         if (err)
1479                 return err;
1480
1481         if (user_bank >= AB8500_NUM_BANKS) {
1482                 dev_err(dev, "debugfs error input > number of banks\n");
1483                 return -EINVAL;
1484         }
1485
1486         debug_bank = user_bank;
1487
1488         return count;
1489 }
1490
1491 static int ab8500_address_print(struct seq_file *s, void *p)
1492 {
1493         return seq_printf(s, "0x%02X\n", debug_address);
1494 }
1495
1496 static int ab8500_address_open(struct inode *inode, struct file *file)
1497 {
1498         return single_open(file, ab8500_address_print, inode->i_private);
1499 }
1500
1501 static ssize_t ab8500_address_write(struct file *file,
1502                                     const char __user *user_buf,
1503                                     size_t count, loff_t *ppos)
1504 {
1505         struct device *dev = ((struct seq_file *)(file->private_data))->private;
1506         unsigned long user_address;
1507         int err;
1508
1509         err = kstrtoul_from_user(user_buf, count, 0, &user_address);
1510         if (err)
1511                 return err;
1512
1513         if (user_address > 0xff) {
1514                 dev_err(dev, "debugfs error input > 0xff\n");
1515                 return -EINVAL;
1516         }
1517         debug_address = user_address;
1518
1519         return count;
1520 }
1521
1522 static int ab8500_val_print(struct seq_file *s, void *p)
1523 {
1524         struct device *dev = s->private;
1525         int ret;
1526         u8 regvalue;
1527
1528         ret = abx500_get_register_interruptible(dev,
1529                 (u8)debug_bank, (u8)debug_address, &regvalue);
1530         if (ret < 0) {
1531                 dev_err(dev, "abx500_get_reg fail %d, %d\n",
1532                         ret, __LINE__);
1533                 return -EINVAL;
1534         }
1535         seq_printf(s, "0x%02X\n", regvalue);
1536
1537         return 0;
1538 }
1539
1540 static int ab8500_val_open(struct inode *inode, struct file *file)
1541 {
1542         return single_open(file, ab8500_val_print, inode->i_private);
1543 }
1544
1545 static ssize_t ab8500_val_write(struct file *file,
1546                                 const char __user *user_buf,
1547                                 size_t count, loff_t *ppos)
1548 {
1549         struct device *dev = ((struct seq_file *)(file->private_data))->private;
1550         unsigned long user_val;
1551         int err;
1552
1553         err = kstrtoul_from_user(user_buf, count, 0, &user_val);
1554         if (err)
1555                 return err;
1556
1557         if (user_val > 0xff) {
1558                 dev_err(dev, "debugfs error input > 0xff\n");
1559                 return -EINVAL;
1560         }
1561         err = abx500_set_register_interruptible(dev,
1562                 (u8)debug_bank, debug_address, (u8)user_val);
1563         if (err < 0) {
1564                 pr_err("abx500_set_reg failed %d, %d", err, __LINE__);
1565                 return -EINVAL;
1566         }
1567
1568         return count;
1569 }
1570
1571 /*
1572  * Interrupt status
1573  */
1574 static u32 num_interrupts[AB8500_MAX_NR_IRQS];
1575 static u32 num_wake_interrupts[AB8500_MAX_NR_IRQS];
1576 static int num_interrupt_lines;
1577
1578 bool __attribute__((weak)) suspend_test_wake_cause_interrupt_is_mine(u32 my_int)
1579 {
1580         return false;
1581 }
1582
1583 void ab8500_debug_register_interrupt(int line)
1584 {
1585         if (line < num_interrupt_lines) {
1586                 num_interrupts[line]++;
1587                 if (suspend_test_wake_cause_interrupt_is_mine(irq_ab8500))
1588                         num_wake_interrupts[line]++;
1589         }
1590 }
1591
1592 static int ab8500_interrupts_print(struct seq_file *s, void *p)
1593 {
1594         int line;
1595
1596         seq_puts(s, "name: number:  number of: wake:\n");
1597
1598         for (line = 0; line < num_interrupt_lines; line++) {
1599                 struct irq_desc *desc = irq_to_desc(line + irq_first);
1600
1601                 seq_printf(s, "%3i:  %6i %4i", line,
1602                            num_interrupts[line],
1603                            num_wake_interrupts[line]);
1604
1605                 if (desc && desc->name)
1606                         seq_printf(s, "-%-8s", desc->name);
1607                 if (desc && desc->action) {
1608                         struct irqaction *action = desc->action;
1609
1610                         seq_printf(s, "  %s", action->name);
1611                         while ((action = action->next) != NULL)
1612                                 seq_printf(s, ", %s", action->name);
1613                 }
1614                 seq_putc(s, '\n');
1615         }
1616
1617         return 0;
1618 }
1619
1620 static int ab8500_interrupts_open(struct inode *inode, struct file *file)
1621 {
1622         return single_open(file, ab8500_interrupts_print, inode->i_private);
1623 }
1624
1625 /*
1626  * - HWREG DB8500 formated routines
1627  */
1628 static int ab8500_hwreg_print(struct seq_file *s, void *d)
1629 {
1630         struct device *dev = s->private;
1631         int ret;
1632         u8 regvalue;
1633
1634         ret = abx500_get_register_interruptible(dev,
1635                 (u8)hwreg_cfg.bank, (u8)hwreg_cfg.addr, &regvalue);
1636         if (ret < 0) {
1637                 dev_err(dev, "abx500_get_reg fail %d, %d\n",
1638                         ret, __LINE__);
1639                 return -EINVAL;
1640         }
1641
1642         if (hwreg_cfg.shift >= 0)
1643                 regvalue >>= hwreg_cfg.shift;
1644         else
1645                 regvalue <<= -hwreg_cfg.shift;
1646         regvalue &= hwreg_cfg.mask;
1647
1648         if (REG_FMT_DEC(&hwreg_cfg))
1649                 seq_printf(s, "%d\n", regvalue);
1650         else
1651                 seq_printf(s, "0x%02X\n", regvalue);
1652         return 0;
1653 }
1654
1655 static int ab8500_hwreg_open(struct inode *inode, struct file *file)
1656 {
1657         return single_open(file, ab8500_hwreg_print, inode->i_private);
1658 }
1659
1660 #define AB8500_SUPPLY_CONTROL_CONFIG_1 0x01
1661 #define AB8500_SUPPLY_CONTROL_REG 0x00
1662 #define AB8500_FIRST_SIM_REG 0x80
1663 #define AB8500_LAST_SIM_REG 0x8B
1664 #define AB8505_LAST_SIM_REG 0x8C
1665
1666 static int ab8500_print_modem_registers(struct seq_file *s, void *p)
1667 {
1668         struct device *dev = s->private;
1669         struct ab8500 *ab8500;
1670         int err;
1671         u8 value;
1672         u8 orig_value;
1673         u32 bank = AB8500_REGU_CTRL2;
1674         u32 last_sim_reg = AB8500_LAST_SIM_REG;
1675         u32 reg;
1676
1677         ab8500 = dev_get_drvdata(dev->parent);
1678         dev_warn(dev, "WARNING! This operation can interfer with modem side\n"
1679                 "and should only be done with care\n");
1680
1681         err = abx500_get_register_interruptible(dev,
1682                 AB8500_REGU_CTRL1, AB8500_SUPPLY_CONTROL_REG, &orig_value);
1683         if (err < 0) {
1684                 dev_err(dev, "ab->read fail %d\n", err);
1685                 return err;
1686         }
1687         /* Config 1 will allow APE side to read SIM registers */
1688         err = abx500_set_register_interruptible(dev,
1689                 AB8500_REGU_CTRL1, AB8500_SUPPLY_CONTROL_REG,
1690                 AB8500_SUPPLY_CONTROL_CONFIG_1);
1691         if (err < 0) {
1692                 dev_err(dev, "ab->write fail %d\n", err);
1693                 return err;
1694         }
1695
1696         seq_printf(s, " bank 0x%02X:\n", bank);
1697
1698         if (is_ab9540(ab8500) || is_ab8505(ab8500))
1699                 last_sim_reg = AB8505_LAST_SIM_REG;
1700
1701         for (reg = AB8500_FIRST_SIM_REG; reg <= last_sim_reg; reg++) {
1702                 err = abx500_get_register_interruptible(dev,
1703                         bank, reg, &value);
1704                 if (err < 0) {
1705                         dev_err(dev, "ab->read fail %d\n", err);
1706                         return err;
1707                 }
1708                 err = seq_printf(s, "  [0x%02X/0x%02X]: 0x%02X\n",
1709                         bank, reg, value);
1710         }
1711         err = abx500_set_register_interruptible(dev,
1712                 AB8500_REGU_CTRL1, AB8500_SUPPLY_CONTROL_REG, orig_value);
1713         if (err < 0) {
1714                 dev_err(dev, "ab->write fail %d\n", err);
1715                 return err;
1716         }
1717         return 0;
1718 }
1719
1720 static int ab8500_modem_open(struct inode *inode, struct file *file)
1721 {
1722         return single_open(file, ab8500_print_modem_registers,
1723                            inode->i_private);
1724 }
1725
1726 static const struct file_operations ab8500_modem_fops = {
1727         .open = ab8500_modem_open,
1728         .read = seq_read,
1729         .llseek = seq_lseek,
1730         .release = single_release,
1731         .owner = THIS_MODULE,
1732 };
1733
1734 static int ab8500_gpadc_bat_ctrl_print(struct seq_file *s, void *p)
1735 {
1736         int bat_ctrl_raw;
1737         int bat_ctrl_convert;
1738         struct ab8500_gpadc *gpadc;
1739
1740         gpadc = ab8500_gpadc_get("ab8500-gpadc.0");
1741         bat_ctrl_raw = ab8500_gpadc_read_raw(gpadc, BAT_CTRL,
1742                 avg_sample, trig_edge, trig_timer, conv_type);
1743         bat_ctrl_convert = ab8500_gpadc_ad_to_voltage(gpadc,
1744                 BAT_CTRL, bat_ctrl_raw);
1745
1746         return seq_printf(s, "%d,0x%X\n",
1747                 bat_ctrl_convert, bat_ctrl_raw);
1748 }
1749
1750 static int ab8500_gpadc_bat_ctrl_open(struct inode *inode, struct file *file)
1751 {
1752         return single_open(file, ab8500_gpadc_bat_ctrl_print,
1753                            inode->i_private);
1754 }
1755
1756 static const struct file_operations ab8500_gpadc_bat_ctrl_fops = {
1757         .open = ab8500_gpadc_bat_ctrl_open,
1758         .read = seq_read,
1759         .llseek = seq_lseek,
1760         .release = single_release,
1761         .owner = THIS_MODULE,
1762 };
1763
1764 static int ab8500_gpadc_btemp_ball_print(struct seq_file *s, void *p)
1765 {
1766         int btemp_ball_raw;
1767         int btemp_ball_convert;
1768         struct ab8500_gpadc *gpadc;
1769
1770         gpadc = ab8500_gpadc_get("ab8500-gpadc.0");
1771         btemp_ball_raw = ab8500_gpadc_read_raw(gpadc, BTEMP_BALL,
1772                 avg_sample, trig_edge, trig_timer, conv_type);
1773         btemp_ball_convert = ab8500_gpadc_ad_to_voltage(gpadc, BTEMP_BALL,
1774                 btemp_ball_raw);
1775
1776         return seq_printf(s,
1777                 "%d,0x%X\n", btemp_ball_convert, btemp_ball_raw);
1778 }
1779
1780 static int ab8500_gpadc_btemp_ball_open(struct inode *inode,
1781                                         struct file *file)
1782 {
1783         return single_open(file, ab8500_gpadc_btemp_ball_print,
1784                            inode->i_private);
1785 }
1786
1787 static const struct file_operations ab8500_gpadc_btemp_ball_fops = {
1788         .open = ab8500_gpadc_btemp_ball_open,
1789         .read = seq_read,
1790         .llseek = seq_lseek,
1791         .release = single_release,
1792         .owner = THIS_MODULE,
1793 };
1794
1795 static int ab8500_gpadc_main_charger_v_print(struct seq_file *s, void *p)
1796 {
1797         int main_charger_v_raw;
1798         int main_charger_v_convert;
1799         struct ab8500_gpadc *gpadc;
1800
1801         gpadc = ab8500_gpadc_get("ab8500-gpadc.0");
1802         main_charger_v_raw = ab8500_gpadc_read_raw(gpadc, MAIN_CHARGER_V,
1803                 avg_sample, trig_edge, trig_timer, conv_type);
1804         main_charger_v_convert = ab8500_gpadc_ad_to_voltage(gpadc,
1805                 MAIN_CHARGER_V, main_charger_v_raw);
1806
1807         return seq_printf(s, "%d,0x%X\n",
1808                         main_charger_v_convert, main_charger_v_raw);
1809 }
1810
1811 static int ab8500_gpadc_main_charger_v_open(struct inode *inode,
1812                                             struct file *file)
1813 {
1814         return single_open(file, ab8500_gpadc_main_charger_v_print,
1815                 inode->i_private);
1816 }
1817
1818 static const struct file_operations ab8500_gpadc_main_charger_v_fops = {
1819         .open = ab8500_gpadc_main_charger_v_open,
1820         .read = seq_read,
1821         .llseek = seq_lseek,
1822         .release = single_release,
1823         .owner = THIS_MODULE,
1824 };
1825
1826 static int ab8500_gpadc_acc_detect1_print(struct seq_file *s, void *p)
1827 {
1828         int acc_detect1_raw;
1829         int acc_detect1_convert;
1830         struct ab8500_gpadc *gpadc;
1831
1832         gpadc = ab8500_gpadc_get("ab8500-gpadc.0");
1833         acc_detect1_raw = ab8500_gpadc_read_raw(gpadc, ACC_DETECT1,
1834                 avg_sample, trig_edge, trig_timer, conv_type);
1835         acc_detect1_convert = ab8500_gpadc_ad_to_voltage(gpadc, ACC_DETECT1,
1836                 acc_detect1_raw);
1837
1838         return seq_printf(s, "%d,0x%X\n",
1839                 acc_detect1_convert, acc_detect1_raw);
1840 }
1841
1842 static int ab8500_gpadc_acc_detect1_open(struct inode *inode,
1843                                          struct file *file)
1844 {
1845         return single_open(file, ab8500_gpadc_acc_detect1_print,
1846                 inode->i_private);
1847 }
1848
1849 static const struct file_operations ab8500_gpadc_acc_detect1_fops = {
1850         .open = ab8500_gpadc_acc_detect1_open,
1851         .read = seq_read,
1852         .llseek = seq_lseek,
1853         .release = single_release,
1854         .owner = THIS_MODULE,
1855 };
1856
1857 static int ab8500_gpadc_acc_detect2_print(struct seq_file *s, void *p)
1858 {
1859         int acc_detect2_raw;
1860         int acc_detect2_convert;
1861         struct ab8500_gpadc *gpadc;
1862
1863         gpadc = ab8500_gpadc_get("ab8500-gpadc.0");
1864         acc_detect2_raw = ab8500_gpadc_read_raw(gpadc, ACC_DETECT2,
1865                 avg_sample, trig_edge, trig_timer, conv_type);
1866         acc_detect2_convert = ab8500_gpadc_ad_to_voltage(gpadc,
1867                 ACC_DETECT2, acc_detect2_raw);
1868
1869         return seq_printf(s, "%d,0x%X\n",
1870                 acc_detect2_convert, acc_detect2_raw);
1871 }
1872
1873 static int ab8500_gpadc_acc_detect2_open(struct inode *inode,
1874                 struct file *file)
1875 {
1876         return single_open(file, ab8500_gpadc_acc_detect2_print,
1877                 inode->i_private);
1878 }
1879
1880 static const struct file_operations ab8500_gpadc_acc_detect2_fops = {
1881         .open = ab8500_gpadc_acc_detect2_open,
1882         .read = seq_read,
1883         .llseek = seq_lseek,
1884         .release = single_release,
1885         .owner = THIS_MODULE,
1886 };
1887
1888 static int ab8500_gpadc_aux1_print(struct seq_file *s, void *p)
1889 {
1890         int aux1_raw;
1891         int aux1_convert;
1892         struct ab8500_gpadc *gpadc;
1893
1894         gpadc = ab8500_gpadc_get("ab8500-gpadc.0");
1895         aux1_raw = ab8500_gpadc_read_raw(gpadc, ADC_AUX1,
1896                 avg_sample, trig_edge, trig_timer, conv_type);
1897         aux1_convert = ab8500_gpadc_ad_to_voltage(gpadc, ADC_AUX1,
1898                 aux1_raw);
1899
1900         return seq_printf(s, "%d,0x%X\n",
1901                 aux1_convert, aux1_raw);
1902 }
1903
1904 static int ab8500_gpadc_aux1_open(struct inode *inode, struct file *file)
1905 {
1906         return single_open(file, ab8500_gpadc_aux1_print, inode->i_private);
1907 }
1908
1909 static const struct file_operations ab8500_gpadc_aux1_fops = {
1910         .open = ab8500_gpadc_aux1_open,
1911         .read = seq_read,
1912         .llseek = seq_lseek,
1913         .release = single_release,
1914         .owner = THIS_MODULE,
1915 };
1916
1917 static int ab8500_gpadc_aux2_print(struct seq_file *s, void *p)
1918 {
1919         int aux2_raw;
1920         int aux2_convert;
1921         struct ab8500_gpadc *gpadc;
1922
1923         gpadc = ab8500_gpadc_get("ab8500-gpadc.0");
1924         aux2_raw = ab8500_gpadc_read_raw(gpadc, ADC_AUX2,
1925                 avg_sample, trig_edge, trig_timer, conv_type);
1926         aux2_convert = ab8500_gpadc_ad_to_voltage(gpadc, ADC_AUX2,
1927                 aux2_raw);
1928
1929         return seq_printf(s, "%d,0x%X\n",
1930                         aux2_convert, aux2_raw);
1931 }
1932
1933 static int ab8500_gpadc_aux2_open(struct inode *inode, struct file *file)
1934 {
1935         return single_open(file, ab8500_gpadc_aux2_print, inode->i_private);
1936 }
1937
1938 static const struct file_operations ab8500_gpadc_aux2_fops = {
1939         .open = ab8500_gpadc_aux2_open,
1940         .read = seq_read,
1941         .llseek = seq_lseek,
1942         .release = single_release,
1943         .owner = THIS_MODULE,
1944 };
1945
1946 static int ab8500_gpadc_main_bat_v_print(struct seq_file *s, void *p)
1947 {
1948         int main_bat_v_raw;
1949         int main_bat_v_convert;
1950         struct ab8500_gpadc *gpadc;
1951
1952         gpadc = ab8500_gpadc_get("ab8500-gpadc.0");
1953         main_bat_v_raw = ab8500_gpadc_read_raw(gpadc, MAIN_BAT_V,
1954                 avg_sample, trig_edge, trig_timer, conv_type);
1955         main_bat_v_convert = ab8500_gpadc_ad_to_voltage(gpadc, MAIN_BAT_V,
1956                 main_bat_v_raw);
1957
1958         return seq_printf(s, "%d,0x%X\n",
1959                 main_bat_v_convert, main_bat_v_raw);
1960 }
1961
1962 static int ab8500_gpadc_main_bat_v_open(struct inode *inode,
1963                                         struct file *file)
1964 {
1965         return single_open(file, ab8500_gpadc_main_bat_v_print,
1966                            inode->i_private);
1967 }
1968
1969 static const struct file_operations ab8500_gpadc_main_bat_v_fops = {
1970         .open = ab8500_gpadc_main_bat_v_open,
1971         .read = seq_read,
1972         .llseek = seq_lseek,
1973         .release = single_release,
1974         .owner = THIS_MODULE,
1975 };
1976
1977 static int ab8500_gpadc_vbus_v_print(struct seq_file *s, void *p)
1978 {
1979         int vbus_v_raw;
1980         int vbus_v_convert;
1981         struct ab8500_gpadc *gpadc;
1982
1983         gpadc = ab8500_gpadc_get("ab8500-gpadc.0");
1984         vbus_v_raw =  ab8500_gpadc_read_raw(gpadc, VBUS_V,
1985                 avg_sample, trig_edge, trig_timer, conv_type);
1986         vbus_v_convert = ab8500_gpadc_ad_to_voltage(gpadc, VBUS_V,
1987                 vbus_v_raw);
1988
1989         return seq_printf(s, "%d,0x%X\n",
1990                 vbus_v_convert, vbus_v_raw);
1991 }
1992
1993 static int ab8500_gpadc_vbus_v_open(struct inode *inode, struct file *file)
1994 {
1995         return single_open(file, ab8500_gpadc_vbus_v_print, inode->i_private);
1996 }
1997
1998 static const struct file_operations ab8500_gpadc_vbus_v_fops = {
1999         .open = ab8500_gpadc_vbus_v_open,
2000         .read = seq_read,
2001         .llseek = seq_lseek,
2002         .release = single_release,
2003         .owner = THIS_MODULE,
2004 };
2005
2006 static int ab8500_gpadc_main_charger_c_print(struct seq_file *s, void *p)
2007 {
2008         int main_charger_c_raw;
2009         int main_charger_c_convert;
2010         struct ab8500_gpadc *gpadc;
2011
2012         gpadc = ab8500_gpadc_get("ab8500-gpadc.0");
2013         main_charger_c_raw = ab8500_gpadc_read_raw(gpadc, MAIN_CHARGER_C,
2014                 avg_sample, trig_edge, trig_timer, conv_type);
2015         main_charger_c_convert = ab8500_gpadc_ad_to_voltage(gpadc,
2016                 MAIN_CHARGER_C, main_charger_c_raw);
2017
2018         return seq_printf(s, "%d,0x%X\n",
2019                 main_charger_c_convert, main_charger_c_raw);
2020 }
2021
2022 static int ab8500_gpadc_main_charger_c_open(struct inode *inode,
2023                 struct file *file)
2024 {
2025         return single_open(file, ab8500_gpadc_main_charger_c_print,
2026                 inode->i_private);
2027 }
2028
2029 static const struct file_operations ab8500_gpadc_main_charger_c_fops = {
2030         .open = ab8500_gpadc_main_charger_c_open,
2031         .read = seq_read,
2032         .llseek = seq_lseek,
2033         .release = single_release,
2034         .owner = THIS_MODULE,
2035 };
2036
2037 static int ab8500_gpadc_usb_charger_c_print(struct seq_file *s, void *p)
2038 {
2039         int usb_charger_c_raw;
2040         int usb_charger_c_convert;
2041         struct ab8500_gpadc *gpadc;
2042
2043         gpadc = ab8500_gpadc_get("ab8500-gpadc.0");
2044         usb_charger_c_raw = ab8500_gpadc_read_raw(gpadc, USB_CHARGER_C,
2045                 avg_sample, trig_edge, trig_timer, conv_type);
2046         usb_charger_c_convert = ab8500_gpadc_ad_to_voltage(gpadc,
2047                 USB_CHARGER_C, usb_charger_c_raw);
2048
2049         return seq_printf(s, "%d,0x%X\n",
2050                 usb_charger_c_convert, usb_charger_c_raw);
2051 }
2052
2053 static int ab8500_gpadc_usb_charger_c_open(struct inode *inode,
2054                 struct file *file)
2055 {
2056         return single_open(file, ab8500_gpadc_usb_charger_c_print,
2057                 inode->i_private);
2058 }
2059
2060 static const struct file_operations ab8500_gpadc_usb_charger_c_fops = {
2061         .open = ab8500_gpadc_usb_charger_c_open,
2062         .read = seq_read,
2063         .llseek = seq_lseek,
2064         .release = single_release,
2065         .owner = THIS_MODULE,
2066 };
2067
2068 static int ab8500_gpadc_bk_bat_v_print(struct seq_file *s, void *p)
2069 {
2070         int bk_bat_v_raw;
2071         int bk_bat_v_convert;
2072         struct ab8500_gpadc *gpadc;
2073
2074         gpadc = ab8500_gpadc_get("ab8500-gpadc.0");
2075         bk_bat_v_raw = ab8500_gpadc_read_raw(gpadc, BK_BAT_V,
2076                 avg_sample, trig_edge, trig_timer, conv_type);
2077         bk_bat_v_convert = ab8500_gpadc_ad_to_voltage(gpadc,
2078                 BK_BAT_V, bk_bat_v_raw);
2079
2080         return seq_printf(s, "%d,0x%X\n",
2081                 bk_bat_v_convert, bk_bat_v_raw);
2082 }
2083
2084 static int ab8500_gpadc_bk_bat_v_open(struct inode *inode, struct file *file)
2085 {
2086         return single_open(file, ab8500_gpadc_bk_bat_v_print,
2087                            inode->i_private);
2088 }
2089
2090 static const struct file_operations ab8500_gpadc_bk_bat_v_fops = {
2091         .open = ab8500_gpadc_bk_bat_v_open,
2092         .read = seq_read,
2093         .llseek = seq_lseek,
2094         .release = single_release,
2095         .owner = THIS_MODULE,
2096 };
2097
2098 static int ab8500_gpadc_die_temp_print(struct seq_file *s, void *p)
2099 {
2100         int die_temp_raw;
2101         int die_temp_convert;
2102         struct ab8500_gpadc *gpadc;
2103
2104         gpadc = ab8500_gpadc_get("ab8500-gpadc.0");
2105         die_temp_raw = ab8500_gpadc_read_raw(gpadc, DIE_TEMP,
2106                 avg_sample, trig_edge, trig_timer, conv_type);
2107         die_temp_convert = ab8500_gpadc_ad_to_voltage(gpadc, DIE_TEMP,
2108                 die_temp_raw);
2109
2110         return seq_printf(s, "%d,0x%X\n",
2111                 die_temp_convert, die_temp_raw);
2112 }
2113
2114 static int ab8500_gpadc_die_temp_open(struct inode *inode, struct file *file)
2115 {
2116         return single_open(file, ab8500_gpadc_die_temp_print,
2117                            inode->i_private);
2118 }
2119
2120 static const struct file_operations ab8500_gpadc_die_temp_fops = {
2121         .open = ab8500_gpadc_die_temp_open,
2122         .read = seq_read,
2123         .llseek = seq_lseek,
2124         .release = single_release,
2125         .owner = THIS_MODULE,
2126 };
2127
2128 static int ab8500_gpadc_usb_id_print(struct seq_file *s, void *p)
2129 {
2130         int usb_id_raw;
2131         int usb_id_convert;
2132         struct ab8500_gpadc *gpadc;
2133
2134         gpadc = ab8500_gpadc_get("ab8500-gpadc.0");
2135         usb_id_raw = ab8500_gpadc_read_raw(gpadc, USB_ID,
2136                 avg_sample, trig_edge, trig_timer, conv_type);
2137         usb_id_convert = ab8500_gpadc_ad_to_voltage(gpadc, USB_ID,
2138                 usb_id_raw);
2139
2140         return seq_printf(s, "%d,0x%X\n",
2141                 usb_id_convert, usb_id_raw);
2142 }
2143
2144 static int ab8500_gpadc_usb_id_open(struct inode *inode, struct file *file)
2145 {
2146         return single_open(file, ab8500_gpadc_usb_id_print, inode->i_private);
2147 }
2148
2149 static const struct file_operations ab8500_gpadc_usb_id_fops = {
2150         .open = ab8500_gpadc_usb_id_open,
2151         .read = seq_read,
2152         .llseek = seq_lseek,
2153         .release = single_release,
2154         .owner = THIS_MODULE,
2155 };
2156
2157 static int ab8540_gpadc_xtal_temp_print(struct seq_file *s, void *p)
2158 {
2159         int xtal_temp_raw;
2160         int xtal_temp_convert;
2161         struct ab8500_gpadc *gpadc;
2162
2163         gpadc = ab8500_gpadc_get("ab8500-gpadc.0");
2164         xtal_temp_raw = ab8500_gpadc_read_raw(gpadc, XTAL_TEMP,
2165                 avg_sample, trig_edge, trig_timer, conv_type);
2166         xtal_temp_convert = ab8500_gpadc_ad_to_voltage(gpadc, XTAL_TEMP,
2167                 xtal_temp_raw);
2168
2169         return seq_printf(s, "%d,0x%X\n",
2170                 xtal_temp_convert, xtal_temp_raw);
2171 }
2172
2173 static int ab8540_gpadc_xtal_temp_open(struct inode *inode, struct file *file)
2174 {
2175         return single_open(file, ab8540_gpadc_xtal_temp_print,
2176                 inode->i_private);
2177 }
2178
2179 static const struct file_operations ab8540_gpadc_xtal_temp_fops = {
2180         .open = ab8540_gpadc_xtal_temp_open,
2181         .read = seq_read,
2182         .llseek = seq_lseek,
2183         .release = single_release,
2184         .owner = THIS_MODULE,
2185 };
2186
2187 static int ab8540_gpadc_vbat_true_meas_print(struct seq_file *s, void *p)
2188 {
2189         int vbat_true_meas_raw;
2190         int vbat_true_meas_convert;
2191         struct ab8500_gpadc *gpadc;
2192
2193         gpadc = ab8500_gpadc_get("ab8500-gpadc.0");
2194         vbat_true_meas_raw = ab8500_gpadc_read_raw(gpadc, VBAT_TRUE_MEAS,
2195                 avg_sample, trig_edge, trig_timer, conv_type);
2196         vbat_true_meas_convert =
2197                 ab8500_gpadc_ad_to_voltage(gpadc, VBAT_TRUE_MEAS,
2198                                            vbat_true_meas_raw);
2199
2200         return seq_printf(s, "%d,0x%X\n",
2201                 vbat_true_meas_convert, vbat_true_meas_raw);
2202 }
2203
2204 static int ab8540_gpadc_vbat_true_meas_open(struct inode *inode,
2205                 struct file *file)
2206 {
2207         return single_open(file, ab8540_gpadc_vbat_true_meas_print,
2208                 inode->i_private);
2209 }
2210
2211 static const struct file_operations ab8540_gpadc_vbat_true_meas_fops = {
2212         .open = ab8540_gpadc_vbat_true_meas_open,
2213         .read = seq_read,
2214         .llseek = seq_lseek,
2215         .release = single_release,
2216         .owner = THIS_MODULE,
2217 };
2218
2219 static int ab8540_gpadc_bat_ctrl_and_ibat_print(struct seq_file *s, void *p)
2220 {
2221         int bat_ctrl_raw;
2222         int bat_ctrl_convert;
2223         int ibat_raw;
2224         int ibat_convert;
2225         struct ab8500_gpadc *gpadc;
2226
2227         gpadc = ab8500_gpadc_get("ab8500-gpadc.0");
2228         bat_ctrl_raw = ab8500_gpadc_double_read_raw(gpadc, BAT_CTRL_AND_IBAT,
2229                 avg_sample, trig_edge, trig_timer, conv_type, &ibat_raw);
2230
2231         bat_ctrl_convert = ab8500_gpadc_ad_to_voltage(gpadc, BAT_CTRL,
2232                 bat_ctrl_raw);
2233         ibat_convert = ab8500_gpadc_ad_to_voltage(gpadc, IBAT_VIRTUAL_CHANNEL,
2234                 ibat_raw);
2235
2236         return seq_printf(s, "%d,0x%X\n"  "%d,0x%X\n",
2237                 bat_ctrl_convert, bat_ctrl_raw,
2238                 ibat_convert, ibat_raw);
2239 }
2240
2241 static int ab8540_gpadc_bat_ctrl_and_ibat_open(struct inode *inode,
2242                 struct file *file)
2243 {
2244         return single_open(file, ab8540_gpadc_bat_ctrl_and_ibat_print,
2245                 inode->i_private);
2246 }
2247
2248 static const struct file_operations ab8540_gpadc_bat_ctrl_and_ibat_fops = {
2249         .open = ab8540_gpadc_bat_ctrl_and_ibat_open,
2250         .read = seq_read,
2251         .llseek = seq_lseek,
2252         .release = single_release,
2253         .owner = THIS_MODULE,
2254 };
2255
2256 static int ab8540_gpadc_vbat_meas_and_ibat_print(struct seq_file *s, void *p)
2257 {
2258         int vbat_meas_raw;
2259         int vbat_meas_convert;
2260         int ibat_raw;
2261         int ibat_convert;
2262         struct ab8500_gpadc *gpadc;
2263
2264         gpadc = ab8500_gpadc_get("ab8500-gpadc.0");
2265         vbat_meas_raw = ab8500_gpadc_double_read_raw(gpadc, VBAT_MEAS_AND_IBAT,
2266                 avg_sample, trig_edge, trig_timer, conv_type, &ibat_raw);
2267         vbat_meas_convert = ab8500_gpadc_ad_to_voltage(gpadc, MAIN_BAT_V,
2268                 vbat_meas_raw);
2269         ibat_convert = ab8500_gpadc_ad_to_voltage(gpadc, IBAT_VIRTUAL_CHANNEL,
2270                 ibat_raw);
2271
2272         return seq_printf(s, "%d,0x%X\n"  "%d,0x%X\n",
2273                 vbat_meas_convert, vbat_meas_raw,
2274                 ibat_convert, ibat_raw);
2275 }
2276
2277 static int ab8540_gpadc_vbat_meas_and_ibat_open(struct inode *inode,
2278                 struct file *file)
2279 {
2280         return single_open(file, ab8540_gpadc_vbat_meas_and_ibat_print,
2281                 inode->i_private);
2282 }
2283
2284 static const struct file_operations ab8540_gpadc_vbat_meas_and_ibat_fops = {
2285         .open = ab8540_gpadc_vbat_meas_and_ibat_open,
2286         .read = seq_read,
2287         .llseek = seq_lseek,
2288         .release = single_release,
2289         .owner = THIS_MODULE,
2290 };
2291
2292 static int ab8540_gpadc_vbat_true_meas_and_ibat_print(struct seq_file *s,
2293                                                       void *p)
2294 {
2295         int vbat_true_meas_raw;
2296         int vbat_true_meas_convert;
2297         int ibat_raw;
2298         int ibat_convert;
2299         struct ab8500_gpadc *gpadc;
2300
2301         gpadc = ab8500_gpadc_get("ab8500-gpadc.0");
2302         vbat_true_meas_raw = ab8500_gpadc_double_read_raw(gpadc,
2303                         VBAT_TRUE_MEAS_AND_IBAT, avg_sample, trig_edge,
2304                         trig_timer, conv_type, &ibat_raw);
2305         vbat_true_meas_convert = ab8500_gpadc_ad_to_voltage(gpadc,
2306                         VBAT_TRUE_MEAS, vbat_true_meas_raw);
2307         ibat_convert = ab8500_gpadc_ad_to_voltage(gpadc, IBAT_VIRTUAL_CHANNEL,
2308                 ibat_raw);
2309
2310         return seq_printf(s, "%d,0x%X\n"  "%d,0x%X\n",
2311                 vbat_true_meas_convert, vbat_true_meas_raw,
2312                 ibat_convert, ibat_raw);
2313 }
2314
2315 static int ab8540_gpadc_vbat_true_meas_and_ibat_open(struct inode *inode,
2316                 struct file *file)
2317 {
2318         return single_open(file, ab8540_gpadc_vbat_true_meas_and_ibat_print,
2319                 inode->i_private);
2320 }
2321
2322 static const struct file_operations
2323 ab8540_gpadc_vbat_true_meas_and_ibat_fops = {
2324         .open = ab8540_gpadc_vbat_true_meas_and_ibat_open,
2325         .read = seq_read,
2326         .llseek = seq_lseek,
2327         .release = single_release,
2328         .owner = THIS_MODULE,
2329 };
2330
2331 static int ab8540_gpadc_bat_temp_and_ibat_print(struct seq_file *s, void *p)
2332 {
2333         int bat_temp_raw;
2334         int bat_temp_convert;
2335         int ibat_raw;
2336         int ibat_convert;
2337         struct ab8500_gpadc *gpadc;
2338
2339         gpadc = ab8500_gpadc_get("ab8500-gpadc.0");
2340         bat_temp_raw = ab8500_gpadc_double_read_raw(gpadc, BAT_TEMP_AND_IBAT,
2341                 avg_sample, trig_edge, trig_timer, conv_type, &ibat_raw);
2342         bat_temp_convert = ab8500_gpadc_ad_to_voltage(gpadc, BTEMP_BALL,
2343                 bat_temp_raw);
2344         ibat_convert = ab8500_gpadc_ad_to_voltage(gpadc, IBAT_VIRTUAL_CHANNEL,
2345                 ibat_raw);
2346
2347         return seq_printf(s, "%d,0x%X\n"  "%d,0x%X\n",
2348                 bat_temp_convert, bat_temp_raw,
2349                 ibat_convert, ibat_raw);
2350 }
2351
2352 static int ab8540_gpadc_bat_temp_and_ibat_open(struct inode *inode,
2353                 struct file *file)
2354 {
2355         return single_open(file, ab8540_gpadc_bat_temp_and_ibat_print,
2356                 inode->i_private);
2357 }
2358
2359 static const struct file_operations ab8540_gpadc_bat_temp_and_ibat_fops = {
2360         .open = ab8540_gpadc_bat_temp_and_ibat_open,
2361         .read = seq_read,
2362         .llseek = seq_lseek,
2363         .release = single_release,
2364         .owner = THIS_MODULE,
2365 };
2366
2367 static int ab8540_gpadc_otp_cal_print(struct seq_file *s, void *p)
2368 {
2369         struct ab8500_gpadc *gpadc;
2370         u16 vmain_l, vmain_h, btemp_l, btemp_h;
2371         u16 vbat_l, vbat_h, ibat_l, ibat_h;
2372
2373         gpadc = ab8500_gpadc_get("ab8500-gpadc.0");
2374         ab8540_gpadc_get_otp(gpadc, &vmain_l, &vmain_h, &btemp_l, &btemp_h,
2375                         &vbat_l, &vbat_h, &ibat_l, &ibat_h);
2376         return seq_printf(s, "VMAIN_L:0x%X\n"
2377                           "VMAIN_H:0x%X\n"
2378                           "BTEMP_L:0x%X\n"
2379                           "BTEMP_H:0x%X\n"
2380                           "VBAT_L:0x%X\n"
2381                           "VBAT_H:0x%X\n"
2382                           "IBAT_L:0x%X\n"
2383                           "IBAT_H:0x%X\n",
2384                           vmain_l, vmain_h, btemp_l, btemp_h,
2385                           vbat_l, vbat_h, ibat_l, ibat_h);
2386 }
2387
2388 static int ab8540_gpadc_otp_cal_open(struct inode *inode, struct file *file)
2389 {
2390         return single_open(file, ab8540_gpadc_otp_cal_print, inode->i_private);
2391 }
2392
2393 static const struct file_operations ab8540_gpadc_otp_calib_fops = {
2394         .open = ab8540_gpadc_otp_cal_open,
2395         .read = seq_read,
2396         .llseek = seq_lseek,
2397         .release = single_release,
2398         .owner = THIS_MODULE,
2399 };
2400
2401 static int ab8500_gpadc_avg_sample_print(struct seq_file *s, void *p)
2402 {
2403         return seq_printf(s, "%d\n", avg_sample);
2404 }
2405
2406 static int ab8500_gpadc_avg_sample_open(struct inode *inode, struct file *file)
2407 {
2408         return single_open(file, ab8500_gpadc_avg_sample_print,
2409                 inode->i_private);
2410 }
2411
2412 static ssize_t ab8500_gpadc_avg_sample_write(struct file *file,
2413         const char __user *user_buf,
2414         size_t count, loff_t *ppos)
2415 {
2416         struct device *dev = ((struct seq_file *)(file->private_data))->private;
2417         unsigned long user_avg_sample;
2418         int err;
2419
2420         err = kstrtoul_from_user(user_buf, count, 0, &user_avg_sample);
2421         if (err)
2422                 return err;
2423
2424         if ((user_avg_sample == SAMPLE_1) || (user_avg_sample == SAMPLE_4)
2425                         || (user_avg_sample == SAMPLE_8)
2426                         || (user_avg_sample == SAMPLE_16)) {
2427                 avg_sample = (u8) user_avg_sample;
2428         } else {
2429                 dev_err(dev,
2430                         "debugfs err input: should be egal to 1, 4, 8 or 16\n");
2431                 return -EINVAL;
2432         }
2433
2434         return count;
2435 }
2436
2437 static const struct file_operations ab8500_gpadc_avg_sample_fops = {
2438         .open = ab8500_gpadc_avg_sample_open,
2439         .read = seq_read,
2440         .write = ab8500_gpadc_avg_sample_write,
2441         .llseek = seq_lseek,
2442         .release = single_release,
2443         .owner = THIS_MODULE,
2444 };
2445
2446 static int ab8500_gpadc_trig_edge_print(struct seq_file *s, void *p)
2447 {
2448         return seq_printf(s, "%d\n", trig_edge);
2449 }
2450
2451 static int ab8500_gpadc_trig_edge_open(struct inode *inode, struct file *file)
2452 {
2453         return single_open(file, ab8500_gpadc_trig_edge_print,
2454                 inode->i_private);
2455 }
2456
2457 static ssize_t ab8500_gpadc_trig_edge_write(struct file *file,
2458         const char __user *user_buf,
2459         size_t count, loff_t *ppos)
2460 {
2461         struct device *dev = ((struct seq_file *)(file->private_data))->private;
2462         unsigned long user_trig_edge;
2463         int err;
2464
2465         err = kstrtoul_from_user(user_buf, count, 0, &user_trig_edge);
2466         if (err)
2467                 return err;
2468
2469         if ((user_trig_edge == RISING_EDGE)
2470                         || (user_trig_edge == FALLING_EDGE)) {
2471                 trig_edge = (u8) user_trig_edge;
2472         } else {
2473                 dev_err(dev, "Wrong input:\n"
2474                         "Enter 0. Rising edge\n"
2475                         "Enter 1. Falling edge\n");
2476                 return -EINVAL;
2477         }
2478
2479         return count;
2480 }
2481
2482 static const struct file_operations ab8500_gpadc_trig_edge_fops = {
2483         .open = ab8500_gpadc_trig_edge_open,
2484         .read = seq_read,
2485         .write = ab8500_gpadc_trig_edge_write,
2486         .llseek = seq_lseek,
2487         .release = single_release,
2488         .owner = THIS_MODULE,
2489 };
2490
2491 static int ab8500_gpadc_trig_timer_print(struct seq_file *s, void *p)
2492 {
2493         return seq_printf(s, "%d\n", trig_timer);
2494 }
2495
2496 static int ab8500_gpadc_trig_timer_open(struct inode *inode, struct file *file)
2497 {
2498         return single_open(file, ab8500_gpadc_trig_timer_print,
2499                 inode->i_private);
2500 }
2501
2502 static ssize_t ab8500_gpadc_trig_timer_write(struct file *file,
2503         const char __user *user_buf,
2504         size_t count, loff_t *ppos)
2505 {
2506         struct device *dev = ((struct seq_file *)(file->private_data))->private;
2507         unsigned long user_trig_timer;
2508         int err;
2509
2510         err = kstrtoul_from_user(user_buf, count, 0, &user_trig_timer);
2511         if (err)
2512                 return err;
2513
2514         if (user_trig_timer & ~0xFF) {
2515                 dev_err(dev,
2516                         "debugfs error input: should be beetween 0 to 255\n");
2517                 return -EINVAL;
2518         }
2519
2520         trig_timer = (u8) user_trig_timer;
2521
2522         return count;
2523 }
2524
2525 static const struct file_operations ab8500_gpadc_trig_timer_fops = {
2526         .open = ab8500_gpadc_trig_timer_open,
2527         .read = seq_read,
2528         .write = ab8500_gpadc_trig_timer_write,
2529         .llseek = seq_lseek,
2530         .release = single_release,
2531         .owner = THIS_MODULE,
2532 };
2533
2534 static int ab8500_gpadc_conv_type_print(struct seq_file *s, void *p)
2535 {
2536         return seq_printf(s, "%d\n", conv_type);
2537 }
2538
2539 static int ab8500_gpadc_conv_type_open(struct inode *inode, struct file *file)
2540 {
2541         return single_open(file, ab8500_gpadc_conv_type_print,
2542                 inode->i_private);
2543 }
2544
2545 static ssize_t ab8500_gpadc_conv_type_write(struct file *file,
2546         const char __user *user_buf,
2547         size_t count, loff_t *ppos)
2548 {
2549         struct device *dev = ((struct seq_file *)(file->private_data))->private;
2550         unsigned long user_conv_type;
2551         int err;
2552
2553         err = kstrtoul_from_user(user_buf, count, 0, &user_conv_type);
2554         if (err)
2555                 return err;
2556
2557         if ((user_conv_type == ADC_SW)
2558                         || (user_conv_type == ADC_HW)) {
2559                 conv_type = (u8) user_conv_type;
2560         } else {
2561                 dev_err(dev, "Wrong input:\n"
2562                         "Enter 0. ADC SW conversion\n"
2563                         "Enter 1. ADC HW conversion\n");
2564                 return -EINVAL;
2565         }
2566
2567         return count;
2568 }
2569
2570 static const struct file_operations ab8500_gpadc_conv_type_fops = {
2571         .open = ab8500_gpadc_conv_type_open,
2572         .read = seq_read,
2573         .write = ab8500_gpadc_conv_type_write,
2574         .llseek = seq_lseek,
2575         .release = single_release,
2576         .owner = THIS_MODULE,
2577 };
2578
2579 /*
2580  * return length of an ASCII numerical value, 0 is string is not a
2581  * numerical value.
2582  * string shall start at value 1st char.
2583  * string can be tailed with \0 or space or newline chars only.
2584  * value can be decimal or hexadecimal (prefixed 0x or 0X).
2585  */
2586 static int strval_len(char *b)
2587 {
2588         char *s = b;
2589
2590         if ((*s == '0') && ((*(s+1) == 'x') || (*(s+1) == 'X'))) {
2591                 s += 2;
2592                 for (; *s && (*s != ' ') && (*s != '\n'); s++) {
2593                         if (!isxdigit(*s))
2594                                 return 0;
2595                 }
2596         } else {
2597                 if (*s == '-')
2598                         s++;
2599                 for (; *s && (*s != ' ') && (*s != '\n'); s++) {
2600                         if (!isdigit(*s))
2601                                 return 0;
2602                 }
2603         }
2604         return (int) (s-b);
2605 }
2606
2607 /*
2608  * parse hwreg input data.
2609  * update global hwreg_cfg only if input data syntax is ok.
2610  */
2611 static ssize_t hwreg_common_write(char *b, struct hwreg_cfg *cfg,
2612                 struct device *dev)
2613 {
2614         uint write, val = 0;
2615         u8  regvalue;
2616         int ret;
2617         struct hwreg_cfg loc = {
2618                 .bank = 0,          /* default: invalid phys addr */
2619                 .addr = 0,          /* default: invalid phys addr */
2620                 .fmt = 0,           /* default: 32bit access, hex output */
2621                 .mask = 0xFFFFFFFF, /* default: no mask */
2622                 .shift = 0,         /* default: no bit shift */
2623         };
2624
2625         /* read or write ? */
2626         if (!strncmp(b, "read ", 5)) {
2627                 write = 0;
2628                 b += 5;
2629         } else if (!strncmp(b, "write ", 6)) {
2630                 write = 1;
2631                 b += 6;
2632         } else
2633                 return -EINVAL;
2634
2635         /* OPTIONS -l|-w|-b -s -m -o */
2636         while ((*b == ' ') || (*b == '-')) {
2637                 if (*(b-1) != ' ') {
2638                         b++;
2639                         continue;
2640                 }
2641                 if ((!strncmp(b, "-d ", 3)) ||
2642                                 (!strncmp(b, "-dec ", 5))) {
2643                         b += (*(b+2) == ' ') ? 3 : 5;
2644                         loc.fmt |= (1<<0);
2645                 } else if ((!strncmp(b, "-h ", 3)) ||
2646                                 (!strncmp(b, "-hex ", 5))) {
2647                         b += (*(b+2) == ' ') ? 3 : 5;
2648                         loc.fmt &= ~(1<<0);
2649                 } else if ((!strncmp(b, "-m ", 3)) ||
2650                                 (!strncmp(b, "-mask ", 6))) {
2651                         b += (*(b+2) == ' ') ? 3 : 6;
2652                         if (strval_len(b) == 0)
2653                                 return -EINVAL;
2654                         ret = kstrtoul(b, 0, &loc.mask);
2655                         if (ret)
2656                                 return ret;
2657                 } else if ((!strncmp(b, "-s ", 3)) ||
2658                                 (!strncmp(b, "-shift ", 7))) {
2659                         b += (*(b+2) == ' ') ? 3 : 7;
2660                         if (strval_len(b) == 0)
2661                                 return -EINVAL;
2662                         ret = kstrtol(b, 0, &loc.shift);
2663                         if (ret)
2664                                 return ret;
2665                 } else {
2666                         return -EINVAL;
2667                 }
2668         }
2669         /* get arg BANK and ADDRESS */
2670         if (strval_len(b) == 0)
2671                 return -EINVAL;
2672         ret = kstrtouint(b, 0, &loc.bank);
2673         if (ret)
2674                 return ret;
2675         while (*b == ' ')
2676                 b++;
2677         if (strval_len(b) == 0)
2678                 return -EINVAL;
2679         ret = kstrtoul(b, 0, &loc.addr);
2680         if (ret)
2681                 return ret;
2682
2683         if (write) {
2684                 while (*b == ' ')
2685                         b++;
2686                 if (strval_len(b) == 0)
2687                         return -EINVAL;
2688                 ret = kstrtouint(b, 0, &val);
2689                 if (ret)
2690                         return ret;
2691         }
2692
2693         /* args are ok, update target cfg (mainly for read) */
2694         *cfg = loc;
2695
2696 #ifdef ABB_HWREG_DEBUG
2697         pr_warn("HWREG request: %s, %s,\n"
2698                 "  addr=0x%08X, mask=0x%X, shift=%d" "value=0x%X\n",
2699                 (write) ? "write" : "read",
2700                 REG_FMT_DEC(cfg) ? "decimal" : "hexa",
2701                 cfg->addr, cfg->mask, cfg->shift, val);
2702 #endif
2703
2704         if (!write)
2705                 return 0;
2706
2707         ret = abx500_get_register_interruptible(dev,
2708                         (u8)cfg->bank, (u8)cfg->addr, &regvalue);
2709         if (ret < 0) {
2710                 dev_err(dev, "abx500_get_reg fail %d, %d\n",
2711                         ret, __LINE__);
2712                 return -EINVAL;
2713         }
2714
2715         if (cfg->shift >= 0) {
2716                 regvalue &= ~(cfg->mask << (cfg->shift));
2717                 val = (val & cfg->mask) << (cfg->shift);
2718         } else {
2719                 regvalue &= ~(cfg->mask >> (-cfg->shift));
2720                 val = (val & cfg->mask) >> (-cfg->shift);
2721         }
2722         val = val | regvalue;
2723
2724         ret = abx500_set_register_interruptible(dev,
2725                         (u8)cfg->bank, (u8)cfg->addr, (u8)val);
2726         if (ret < 0) {
2727                 pr_err("abx500_set_reg failed %d, %d", ret, __LINE__);
2728                 return -EINVAL;
2729         }
2730
2731         return 0;
2732 }
2733
2734 static ssize_t ab8500_hwreg_write(struct file *file,
2735         const char __user *user_buf, size_t count, loff_t *ppos)
2736 {
2737         struct device *dev = ((struct seq_file *)(file->private_data))->private;
2738         char buf[128];
2739         int buf_size, ret;
2740
2741         /* Get userspace string and assure termination */
2742         buf_size = min(count, (sizeof(buf)-1));
2743         if (copy_from_user(buf, user_buf, buf_size))
2744                 return -EFAULT;
2745         buf[buf_size] = 0;
2746
2747         /* get args and process */
2748         ret = hwreg_common_write(buf, &hwreg_cfg, dev);
2749         return (ret) ? ret : buf_size;
2750 }
2751
2752 /*
2753  * - irq subscribe/unsubscribe stuff
2754  */
2755 static int ab8500_subscribe_unsubscribe_print(struct seq_file *s, void *p)
2756 {
2757         seq_printf(s, "%d\n", irq_first);
2758
2759         return 0;
2760 }
2761
2762 static int ab8500_subscribe_unsubscribe_open(struct inode *inode,
2763                                              struct file *file)
2764 {
2765         return single_open(file, ab8500_subscribe_unsubscribe_print,
2766                 inode->i_private);
2767 }
2768
2769 /*
2770  * Userspace should use poll() on this file. When an event occur
2771  * the blocking poll will be released.
2772  */
2773 static ssize_t show_irq(struct device *dev,
2774                         struct device_attribute *attr, char *buf)
2775 {
2776         unsigned long name;
2777         unsigned int irq_index;
2778         int err;
2779
2780         err = kstrtoul(attr->attr.name, 0, &name);
2781         if (err)
2782                 return err;
2783
2784         irq_index = name - irq_first;
2785         if (irq_index >= num_irqs)
2786                 return -EINVAL;
2787
2788         return sprintf(buf, "%u\n", irq_count[irq_index]);
2789 }
2790
2791 static ssize_t ab8500_subscribe_write(struct file *file,
2792                                       const char __user *user_buf,
2793                                       size_t count, loff_t *ppos)
2794 {
2795         struct device *dev = ((struct seq_file *)(file->private_data))->private;
2796         unsigned long user_val;
2797         int err;
2798         unsigned int irq_index;
2799
2800         err = kstrtoul_from_user(user_buf, count, 0, &user_val);
2801         if (err)
2802                 return err;
2803
2804         if (user_val < irq_first) {
2805                 dev_err(dev, "debugfs error input < %d\n", irq_first);
2806                 return -EINVAL;
2807         }
2808         if (user_val > irq_last) {
2809                 dev_err(dev, "debugfs error input > %d\n", irq_last);
2810                 return -EINVAL;
2811         }
2812
2813         irq_index = user_val - irq_first;
2814         if (irq_index >= num_irqs)
2815                 return -EINVAL;
2816
2817         /*
2818          * This will create a sysfs file named <irq-nr> which userspace can
2819          * use to select or poll and get the AB8500 events
2820          */
2821         dev_attr[irq_index] = kmalloc(sizeof(struct device_attribute),
2822                 GFP_KERNEL);
2823         if (!dev_attr[irq_index])
2824                 return -ENOMEM;
2825
2826         event_name[irq_index] = kmalloc(count, GFP_KERNEL);
2827         if (!event_name[irq_index])
2828                 return -ENOMEM;
2829
2830         sprintf(event_name[irq_index], "%lu", user_val);
2831         dev_attr[irq_index]->show = show_irq;
2832         dev_attr[irq_index]->store = NULL;
2833         dev_attr[irq_index]->attr.name = event_name[irq_index];
2834         dev_attr[irq_index]->attr.mode = S_IRUGO;
2835         err = sysfs_create_file(&dev->kobj, &dev_attr[irq_index]->attr);
2836         if (err < 0) {
2837                 pr_info("sysfs_create_file failed %d\n", err);
2838                 return err;
2839         }
2840
2841         err = request_threaded_irq(user_val, NULL, ab8500_debug_handler,
2842                                    IRQF_SHARED | IRQF_NO_SUSPEND,
2843                                    "ab8500-debug", &dev->kobj);
2844         if (err < 0) {
2845                 pr_info("request_threaded_irq failed %d, %lu\n",
2846                         err, user_val);
2847                 sysfs_remove_file(&dev->kobj, &dev_attr[irq_index]->attr);
2848                 return err;
2849         }
2850
2851         return count;
2852 }
2853
2854 static ssize_t ab8500_unsubscribe_write(struct file *file,
2855                                         const char __user *user_buf,
2856                                         size_t count, loff_t *ppos)
2857 {
2858         struct device *dev = ((struct seq_file *)(file->private_data))->private;
2859         unsigned long user_val;
2860         int err;
2861         unsigned int irq_index;
2862
2863         err = kstrtoul_from_user(user_buf, count, 0, &user_val);
2864         if (err)
2865                 return err;
2866
2867         if (user_val < irq_first) {
2868                 dev_err(dev, "debugfs error input < %d\n", irq_first);
2869                 return -EINVAL;
2870         }
2871         if (user_val > irq_last) {
2872                 dev_err(dev, "debugfs error input > %d\n", irq_last);
2873                 return -EINVAL;
2874         }
2875
2876         irq_index = user_val - irq_first;
2877         if (irq_index >= num_irqs)
2878                 return -EINVAL;
2879
2880         /* Set irq count to 0 when unsubscribe */
2881         irq_count[irq_index] = 0;
2882
2883         if (dev_attr[irq_index])
2884                 sysfs_remove_file(&dev->kobj, &dev_attr[irq_index]->attr);
2885
2886
2887         free_irq(user_val, &dev->kobj);
2888         kfree(event_name[irq_index]);
2889         kfree(dev_attr[irq_index]);
2890
2891         return count;
2892 }
2893
2894 /*
2895  * - several deubgfs nodes fops
2896  */
2897
2898 static const struct file_operations ab8500_bank_fops = {
2899         .open = ab8500_bank_open,
2900         .write = ab8500_bank_write,
2901         .read = seq_read,
2902         .llseek = seq_lseek,
2903         .release = single_release,
2904         .owner = THIS_MODULE,
2905 };
2906
2907 static const struct file_operations ab8500_address_fops = {
2908         .open = ab8500_address_open,
2909         .write = ab8500_address_write,
2910         .read = seq_read,
2911         .llseek = seq_lseek,
2912         .release = single_release,
2913         .owner = THIS_MODULE,
2914 };
2915
2916 static const struct file_operations ab8500_val_fops = {
2917         .open = ab8500_val_open,
2918         .write = ab8500_val_write,
2919         .read = seq_read,
2920         .llseek = seq_lseek,
2921         .release = single_release,
2922         .owner = THIS_MODULE,
2923 };
2924
2925 static const struct file_operations ab8500_interrupts_fops = {
2926         .open = ab8500_interrupts_open,
2927         .read = seq_read,
2928         .llseek = seq_lseek,
2929         .release = single_release,
2930         .owner = THIS_MODULE,
2931 };
2932
2933 static const struct file_operations ab8500_subscribe_fops = {
2934         .open = ab8500_subscribe_unsubscribe_open,
2935         .write = ab8500_subscribe_write,
2936         .read = seq_read,
2937         .llseek = seq_lseek,
2938         .release = single_release,
2939         .owner = THIS_MODULE,
2940 };
2941
2942 static const struct file_operations ab8500_unsubscribe_fops = {
2943         .open = ab8500_subscribe_unsubscribe_open,
2944         .write = ab8500_unsubscribe_write,
2945         .read = seq_read,
2946         .llseek = seq_lseek,
2947         .release = single_release,
2948         .owner = THIS_MODULE,
2949 };
2950
2951 static const struct file_operations ab8500_hwreg_fops = {
2952         .open = ab8500_hwreg_open,
2953         .write = ab8500_hwreg_write,
2954         .read = seq_read,
2955         .llseek = seq_lseek,
2956         .release = single_release,
2957         .owner = THIS_MODULE,
2958 };
2959
2960 static struct dentry *ab8500_dir;
2961 static struct dentry *ab8500_gpadc_dir;
2962
2963 static int ab8500_debug_probe(struct platform_device *plf)
2964 {
2965         struct dentry *file;
2966         struct ab8500 *ab8500;
2967         struct resource *res;
2968
2969         debug_bank = AB8500_MISC;
2970         debug_address = AB8500_REV_REG & 0x00FF;
2971
2972         ab8500 = dev_get_drvdata(plf->dev.parent);
2973         num_irqs = ab8500->mask_size;
2974
2975         irq_count = devm_kzalloc(&plf->dev,
2976                                  sizeof(*irq_count)*num_irqs, GFP_KERNEL);
2977         if (!irq_count)
2978                 return -ENOMEM;
2979
2980         dev_attr = devm_kzalloc(&plf->dev,
2981                                 sizeof(*dev_attr)*num_irqs, GFP_KERNEL);
2982         if (!dev_attr)
2983                 return -ENOMEM;
2984
2985         event_name = devm_kzalloc(&plf->dev,
2986                                   sizeof(*event_name)*num_irqs, GFP_KERNEL);
2987         if (!event_name)
2988                 return -ENOMEM;
2989
2990         res = platform_get_resource_byname(plf, 0, "IRQ_AB8500");
2991         if (!res) {
2992                 dev_err(&plf->dev, "AB8500 irq not found, err %d\n", irq_first);
2993                 return -ENXIO;
2994         }
2995         irq_ab8500 = res->start;
2996
2997         irq_first = platform_get_irq_byname(plf, "IRQ_FIRST");
2998         if (irq_first < 0) {
2999                 dev_err(&plf->dev, "First irq not found, err %d\n", irq_first);
3000                 return irq_first;
3001         }
3002
3003         irq_last = platform_get_irq_byname(plf, "IRQ_LAST");
3004         if (irq_last < 0) {
3005                 dev_err(&plf->dev, "Last irq not found, err %d\n", irq_last);
3006                 return irq_last;
3007         }
3008
3009         ab8500_dir = debugfs_create_dir(AB8500_NAME_STRING, NULL);
3010         if (!ab8500_dir)
3011                 goto err;
3012
3013         ab8500_gpadc_dir = debugfs_create_dir(AB8500_ADC_NAME_STRING,
3014                                               ab8500_dir);
3015         if (!ab8500_gpadc_dir)
3016                 goto err;
3017
3018         file = debugfs_create_file("all-bank-registers", S_IRUGO, ab8500_dir,
3019                                    &plf->dev, &ab8500_registers_fops);
3020         if (!file)
3021                 goto err;
3022
3023         file = debugfs_create_file("all-banks", S_IRUGO, ab8500_dir,
3024                                    &plf->dev, &ab8500_all_banks_fops);
3025         if (!file)
3026                 goto err;
3027
3028         file = debugfs_create_file("register-bank",
3029                                    (S_IRUGO | S_IWUSR | S_IWGRP),
3030                                    ab8500_dir, &plf->dev, &ab8500_bank_fops);
3031         if (!file)
3032                 goto err;
3033
3034         file = debugfs_create_file("register-address",
3035                                    (S_IRUGO | S_IWUSR | S_IWGRP),
3036                                    ab8500_dir, &plf->dev, &ab8500_address_fops);
3037         if (!file)
3038                 goto err;
3039
3040         file = debugfs_create_file("register-value",
3041                                    (S_IRUGO | S_IWUSR | S_IWGRP),
3042                                    ab8500_dir, &plf->dev, &ab8500_val_fops);
3043         if (!file)
3044                 goto err;
3045
3046         file = debugfs_create_file("irq-subscribe",
3047                                    (S_IRUGO | S_IWUSR | S_IWGRP), ab8500_dir,
3048                                    &plf->dev, &ab8500_subscribe_fops);
3049         if (!file)
3050                 goto err;
3051
3052         if (is_ab8500(ab8500)) {
3053                 debug_ranges = ab8500_debug_ranges;
3054                 num_interrupt_lines = AB8500_NR_IRQS;
3055         } else if (is_ab8505(ab8500)) {
3056                 debug_ranges = ab8505_debug_ranges;
3057                 num_interrupt_lines = AB8505_NR_IRQS;
3058         } else if (is_ab9540(ab8500)) {
3059                 debug_ranges = ab8505_debug_ranges;
3060                 num_interrupt_lines = AB9540_NR_IRQS;
3061         } else if (is_ab8540(ab8500)) {
3062                 debug_ranges = ab8540_debug_ranges;
3063                 num_interrupt_lines = AB8540_NR_IRQS;
3064         }
3065
3066         file = debugfs_create_file("interrupts", (S_IRUGO), ab8500_dir,
3067                                    &plf->dev, &ab8500_interrupts_fops);
3068         if (!file)
3069                 goto err;
3070
3071         file = debugfs_create_file("irq-unsubscribe",
3072                                    (S_IRUGO | S_IWUSR | S_IWGRP), ab8500_dir,
3073                                    &plf->dev, &ab8500_unsubscribe_fops);
3074         if (!file)
3075                 goto err;
3076
3077         file = debugfs_create_file("hwreg", (S_IRUGO | S_IWUSR | S_IWGRP),
3078                                    ab8500_dir, &plf->dev, &ab8500_hwreg_fops);
3079         if (!file)
3080                 goto err;
3081
3082         file = debugfs_create_file("all-modem-registers",
3083                                    (S_IRUGO | S_IWUSR | S_IWGRP),
3084                                    ab8500_dir, &plf->dev, &ab8500_modem_fops);
3085         if (!file)
3086                 goto err;
3087
3088         file = debugfs_create_file("bat_ctrl", (S_IRUGO | S_IWUSR | S_IWGRP),
3089                                    ab8500_gpadc_dir, &plf->dev,
3090                                    &ab8500_gpadc_bat_ctrl_fops);
3091         if (!file)
3092                 goto err;
3093
3094         file = debugfs_create_file("btemp_ball", (S_IRUGO | S_IWUSR | S_IWGRP),
3095                                    ab8500_gpadc_dir,
3096                                    &plf->dev, &ab8500_gpadc_btemp_ball_fops);
3097         if (!file)
3098                 goto err;
3099
3100         file = debugfs_create_file("main_charger_v",
3101                                    (S_IRUGO | S_IWUSR | S_IWGRP),
3102                                    ab8500_gpadc_dir, &plf->dev,
3103                                    &ab8500_gpadc_main_charger_v_fops);
3104         if (!file)
3105                 goto err;
3106
3107         file = debugfs_create_file("acc_detect1",
3108                                    (S_IRUGO | S_IWUSR | S_IWGRP),
3109                                    ab8500_gpadc_dir, &plf->dev,
3110                                    &ab8500_gpadc_acc_detect1_fops);
3111         if (!file)
3112                 goto err;
3113
3114         file = debugfs_create_file("acc_detect2",
3115                                    (S_IRUGO | S_IWUSR | S_IWGRP),
3116                                    ab8500_gpadc_dir, &plf->dev,
3117                                    &ab8500_gpadc_acc_detect2_fops);
3118         if (!file)
3119                 goto err;
3120
3121         file = debugfs_create_file("adc_aux1", (S_IRUGO | S_IWUSR | S_IWGRP),
3122                                    ab8500_gpadc_dir, &plf->dev,
3123                                    &ab8500_gpadc_aux1_fops);
3124         if (!file)
3125                 goto err;
3126
3127         file = debugfs_create_file("adc_aux2", (S_IRUGO | S_IWUSR | S_IWGRP),
3128                                    ab8500_gpadc_dir, &plf->dev,
3129                                    &ab8500_gpadc_aux2_fops);
3130         if (!file)
3131                 goto err;
3132
3133         file = debugfs_create_file("main_bat_v", (S_IRUGO | S_IWUSR | S_IWGRP),
3134                                    ab8500_gpadc_dir, &plf->dev,
3135                                    &ab8500_gpadc_main_bat_v_fops);
3136         if (!file)
3137                 goto err;
3138
3139         file = debugfs_create_file("vbus_v", (S_IRUGO | S_IWUSR | S_IWGRP),
3140                                    ab8500_gpadc_dir, &plf->dev,
3141                                    &ab8500_gpadc_vbus_v_fops);
3142         if (!file)
3143                 goto err;
3144
3145         file = debugfs_create_file("main_charger_c",
3146                                    (S_IRUGO | S_IWUSR | S_IWGRP),
3147                                    ab8500_gpadc_dir, &plf->dev,
3148                                    &ab8500_gpadc_main_charger_c_fops);
3149         if (!file)
3150                 goto err;
3151
3152         file = debugfs_create_file("usb_charger_c",
3153                                    (S_IRUGO | S_IWUSR | S_IWGRP),
3154                                    ab8500_gpadc_dir,
3155                                    &plf->dev, &ab8500_gpadc_usb_charger_c_fops);
3156         if (!file)
3157                 goto err;
3158
3159         file = debugfs_create_file("bk_bat_v", (S_IRUGO | S_IWUSR | S_IWGRP),
3160                                    ab8500_gpadc_dir, &plf->dev,
3161                                    &ab8500_gpadc_bk_bat_v_fops);
3162         if (!file)
3163                 goto err;
3164
3165         file = debugfs_create_file("die_temp", (S_IRUGO | S_IWUSR | S_IWGRP),
3166                                    ab8500_gpadc_dir, &plf->dev,
3167                                    &ab8500_gpadc_die_temp_fops);
3168         if (!file)
3169                 goto err;
3170
3171         file = debugfs_create_file("usb_id", (S_IRUGO | S_IWUSR | S_IWGRP),
3172                                    ab8500_gpadc_dir, &plf->dev,
3173                                    &ab8500_gpadc_usb_id_fops);
3174         if (!file)
3175                 goto err;
3176
3177         if (is_ab8540(ab8500)) {
3178                 file = debugfs_create_file("xtal_temp",
3179                                            (S_IRUGO | S_IWUSR | S_IWGRP),
3180                                            ab8500_gpadc_dir, &plf->dev,
3181                                            &ab8540_gpadc_xtal_temp_fops);
3182                 if (!file)
3183                         goto err;
3184                 file = debugfs_create_file("vbattruemeas",
3185                                            (S_IRUGO | S_IWUSR | S_IWGRP),
3186                                            ab8500_gpadc_dir, &plf->dev,
3187                                            &ab8540_gpadc_vbat_true_meas_fops);
3188                 if (!file)
3189                         goto err;
3190                 file = debugfs_create_file("batctrl_and_ibat",
3191                                         (S_IRUGO | S_IWUGO),
3192                                         ab8500_gpadc_dir,
3193                                         &plf->dev,
3194                                         &ab8540_gpadc_bat_ctrl_and_ibat_fops);
3195                 if (!file)
3196                         goto err;
3197                 file = debugfs_create_file("vbatmeas_and_ibat",
3198                                         (S_IRUGO | S_IWUGO),
3199                                         ab8500_gpadc_dir, &plf->dev,
3200                                         &ab8540_gpadc_vbat_meas_and_ibat_fops);
3201                 if (!file)
3202                         goto err;
3203                 file = debugfs_create_file("vbattruemeas_and_ibat",
3204                                 (S_IRUGO | S_IWUGO),
3205                                 ab8500_gpadc_dir,
3206                                 &plf->dev,
3207                                 &ab8540_gpadc_vbat_true_meas_and_ibat_fops);
3208                 if (!file)
3209                         goto err;
3210                 file = debugfs_create_file("battemp_and_ibat",
3211                         (S_IRUGO | S_IWUGO),
3212                         ab8500_gpadc_dir,
3213                         &plf->dev, &ab8540_gpadc_bat_temp_and_ibat_fops);
3214                 if (!file)
3215                         goto err;
3216                 file = debugfs_create_file("otp_calib",
3217                                 (S_IRUGO | S_IWUSR | S_IWGRP),
3218                                 ab8500_gpadc_dir,
3219                                 &plf->dev, &ab8540_gpadc_otp_calib_fops);
3220                 if (!file)
3221                         goto err;
3222         }
3223         file = debugfs_create_file("avg_sample", (S_IRUGO | S_IWUSR | S_IWGRP),
3224                                    ab8500_gpadc_dir, &plf->dev,
3225                                    &ab8500_gpadc_avg_sample_fops);
3226         if (!file)
3227                 goto err;
3228
3229         file = debugfs_create_file("trig_edge", (S_IRUGO | S_IWUSR | S_IWGRP),
3230                                    ab8500_gpadc_dir, &plf->dev,
3231                                    &ab8500_gpadc_trig_edge_fops);
3232         if (!file)
3233                 goto err;
3234
3235         file = debugfs_create_file("trig_timer", (S_IRUGO | S_IWUSR | S_IWGRP),
3236                                    ab8500_gpadc_dir, &plf->dev,
3237                                    &ab8500_gpadc_trig_timer_fops);
3238         if (!file)
3239                 goto err;
3240
3241         file = debugfs_create_file("conv_type", (S_IRUGO | S_IWUSR | S_IWGRP),
3242                                    ab8500_gpadc_dir, &plf->dev,
3243                                    &ab8500_gpadc_conv_type_fops);
3244         if (!file)
3245                 goto err;
3246
3247         return 0;
3248
3249 err:
3250         debugfs_remove_recursive(ab8500_dir);
3251         dev_err(&plf->dev, "failed to create debugfs entries.\n");
3252
3253         return -ENOMEM;
3254 }
3255
3256 static int ab8500_debug_remove(struct platform_device *plf)
3257 {
3258         debugfs_remove_recursive(ab8500_dir);
3259
3260         return 0;
3261 }
3262
3263 static struct platform_driver ab8500_debug_driver = {
3264         .driver = {
3265                 .name = "ab8500-debug",
3266         },
3267         .probe  = ab8500_debug_probe,
3268         .remove = ab8500_debug_remove
3269 };
3270
3271 static int __init ab8500_debug_init(void)
3272 {
3273         return platform_driver_register(&ab8500_debug_driver);
3274 }
3275
3276 static void __exit ab8500_debug_exit(void)
3277 {
3278         platform_driver_unregister(&ab8500_debug_driver);
3279 }
3280 subsys_initcall(ab8500_debug_init);
3281 module_exit(ab8500_debug_exit);
3282
3283 MODULE_AUTHOR("Mattias WALLIN <mattias.wallin@stericsson.com");
3284 MODULE_DESCRIPTION("AB8500 DEBUG");
3285 MODULE_LICENSE("GPL v2");