git.sur5r.net Git - groeck-it87/blob - it87.c

   1 /*
   2  *  it87.c - Part of lm_sensors, Linux kernel modules for hardware
   3  *           monitoring.
   4  *
   5  *  The IT8705F is an LPC-based Super I/O part that contains UARTs, a
   6  *  parallel port, an IR port, a MIDI port, a floppy controller, etc., in
   7  *  addition to an Environment Controller (Enhanced Hardware Monitor and
   8  *  Fan Controller)
   9  *
  10  *  This driver supports only the Environment Controller in the IT8705F and
  11  *  similar parts.  The other devices are supported by different drivers.
  12  *
  13  *  Supports: IT8603E  Super I/O chip w/LPC interface
  14  *            IT8623E  Super I/O chip w/LPC interface
  15  *            IT8705F  Super I/O chip w/LPC interface
  16  *            IT8712F  Super I/O chip w/LPC interface
  17  *            IT8716F  Super I/O chip w/LPC interface
  18  *            IT8718F  Super I/O chip w/LPC interface
  19  *            IT8720F  Super I/O chip w/LPC interface
  20  *            IT8721F  Super I/O chip w/LPC interface
  21  *            IT8726F  Super I/O chip w/LPC interface
  22  *            IT8728F  Super I/O chip w/LPC interface
  23  *            IT8758E  Super I/O chip w/LPC interface
  24  *            IT8771E  Super I/O chip w/LPC interface
  25  *            IT8772E  Super I/O chip w/LPC interface
  26  *            IT8781F  Super I/O chip w/LPC interface
  27  *            IT8782F  Super I/O chip w/LPC interface
  28  *            IT8783E/F Super I/O chip w/LPC interface
  29  *            Sis950   A clone of the IT8705F
  30  *
  31  *  Copyright (C) 2001 Chris Gauthron
  32  *  Copyright (C) 2005-2010 Jean Delvare <jdelvare@suse.de>
  33  *
  34  *  This program is free software; you can redistribute it and/or modify
  35  *  it under the terms of the GNU General Public License as published by
  36  *  the Free Software Foundation; either version 2 of the License, or
  37  *  (at your option) any later version.
  38  *
  39  *  This program is distributed in the hope that it will be useful,
  40  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  41  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  42  *  GNU General Public License for more details.
  43  *
  44  *  You should have received a copy of the GNU General Public License
  45  *  along with this program; if not, write to the Free Software
  46  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  47  */
  48
  49 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  50
  51 #include <linux/module.h>
  52 #include <linux/init.h>
  53 #include <linux/slab.h>
  54 #include <linux/jiffies.h>
  55 #include <linux/platform_device.h>
  56 #include <linux/hwmon.h>
  57 #include <linux/hwmon-sysfs.h>
  58 #include <linux/hwmon-vid.h>
  59 #include <linux/err.h>
  60 #include <linux/mutex.h>
  61 #include <linux/sysfs.h>
  62 #include <linux/string.h>
  63 #include <linux/dmi.h>
  64 #include <linux/acpi.h>
  65 #include <linux/io.h>
  66 #include "compat.h"
  67
  68 #define DRVNAME "it87"
  69
  70 enum chips { it87, it8712, it8716, it8718, it8720, it8721, it8728, it8771,
  71              it8772, it8781, it8782, it8783, it8603 };
  72
  73 static unsigned short force_id;
  74 module_param(force_id, ushort, 0);
  75 MODULE_PARM_DESC(force_id, "Override the detected device ID");
  76
  77 static struct platform_device *pdev;
  78
  79 #define REG     0x2e    /* The register to read/write */
  80 #define DEV     0x07    /* Register: Logical device select */
  81 #define VAL     0x2f    /* The value to read/write */
  82 #define PME     0x04    /* The device with the fan registers in it */
  83
  84 /* The device with the IT8718F/IT8720F VID value in it */
  85 #define GPIO    0x07
  86
  87 #define DEVID   0x20    /* Register: Device ID */
  88 #define DEVREV  0x22    /* Register: Device Revision */
  89
  90 static inline int superio_inb(int reg)
  91 {
  92         outb(reg, REG);
  93         return inb(VAL);
  94 }
  95
  96 static inline void superio_outb(int reg, int val)
  97 {
  98         outb(reg, REG);
  99         outb(val, VAL);
 100 }
 101
 102 static int superio_inw(int reg)
 103 {
 104         int val;
 105         outb(reg++, REG);
 106         val = inb(VAL) << 8;
 107         outb(reg, REG);
 108         val |= inb(VAL);
 109         return val;
 110 }
 111
 112 static inline void superio_select(int ldn)
 113 {
 114         outb(DEV, REG);
 115         outb(ldn, VAL);
 116 }
 117
 118 static inline int superio_enter(void)
 119 {
 120         /*
 121          * Try to reserve REG and REG + 1 for exclusive access.
 122          */
 123         if (!request_muxed_region(REG, 2, DRVNAME))
 124                 return -EBUSY;
 125
 126         outb(0x87, REG);
 127         outb(0x01, REG);
 128         outb(0x55, REG);
 129         outb(0x55, REG);
 130         return 0;
 131 }
 132
 133 static inline void superio_exit(void)
 134 {
 135         outb(0x02, REG);
 136         outb(0x02, VAL);
 137         release_region(REG, 2);
 138 }
 139
 140 /* Logical device 4 registers */
 141 #define IT8712F_DEVID 0x8712
 142 #define IT8705F_DEVID 0x8705
 143 #define IT8716F_DEVID 0x8716
 144 #define IT8718F_DEVID 0x8718
 145 #define IT8720F_DEVID 0x8720
 146 #define IT8721F_DEVID 0x8721
 147 #define IT8726F_DEVID 0x8726
 148 #define IT8728F_DEVID 0x8728
 149 #define IT8771E_DEVID 0x8771
 150 #define IT8772E_DEVID 0x8772
 151 #define IT8781F_DEVID 0x8781
 152 #define IT8782F_DEVID 0x8782
 153 #define IT8783E_DEVID 0x8783
 154 #define IT8603E_DEVID 0x8603
 155 #define IT8623E_DEVID 0x8623
 156 #define IT87_ACT_REG  0x30
 157 #define IT87_BASE_REG 0x60
 158
 159 /* Logical device 7 registers (IT8712F and later) */
 160 #define IT87_SIO_GPIO1_REG      0x25
 161 #define IT87_SIO_GPIO3_REG      0x27
 162 #define IT87_SIO_GPIO5_REG      0x29
 163 #define IT87_SIO_PINX1_REG      0x2a    /* Pin selection */
 164 #define IT87_SIO_PINX2_REG      0x2c    /* Pin selection */
 165 #define IT87_SIO_SPI_REG        0xef    /* SPI function pin select */
 166 #define IT87_SIO_VID_REG        0xfc    /* VID value */
 167 #define IT87_SIO_BEEP_PIN_REG   0xf6    /* Beep pin mapping */
 168
 169 /* Update battery voltage after every reading if true */
 170 static bool update_vbat;
 171
 172 /* Not all BIOSes properly configure the PWM registers */
 173 static bool fix_pwm_polarity;
 174
 175 /* Many IT87 constants specified below */
 176
 177 /* Length of ISA address segment */
 178 #define IT87_EXTENT 8
 179
 180 /* Length of ISA address segment for Environmental Controller */
 181 #define IT87_EC_EXTENT 2
 182
 183 /* Offset of EC registers from ISA base address */
 184 #define IT87_EC_OFFSET 5
 185
 186 /* Where are the ISA address/data registers relative to the EC base address */
 187 #define IT87_ADDR_REG_OFFSET 0
 188 #define IT87_DATA_REG_OFFSET 1
 189
 190 /*----- The IT87 registers -----*/
 191
 192 #define IT87_REG_CONFIG        0x00
 193
 194 #define IT87_REG_ALARM1        0x01
 195 #define IT87_REG_ALARM2        0x02
 196 #define IT87_REG_ALARM3        0x03
 197
 198 /*
 199  * The IT8718F and IT8720F have the VID value in a different register, in
 200  * Super-I/O configuration space.
 201  */
 202 #define IT87_REG_VID           0x0a
 203 /*
 204  * The IT8705F and IT8712F earlier than revision 0x08 use register 0x0b
 205  * for fan divisors. Later IT8712F revisions must use 16-bit tachometer
 206  * mode.
 207  */
 208 #define IT87_REG_FAN_DIV       0x0b
 209 #define IT87_REG_FAN_16BIT     0x0c
 210
 211 /* Monitors: 9 voltage (0 to 7, battery), 3 temp (1 to 3), 3 fan (1 to 3) */
 212
 213 static const u8 IT87_REG_FAN[]          = { 0x0d, 0x0e, 0x0f, 0x80, 0x82 };
 214 static const u8 IT87_REG_FAN_MIN[]      = { 0x10, 0x11, 0x12, 0x84, 0x86 };
 215 static const u8 IT87_REG_FANX[]         = { 0x18, 0x19, 0x1a, 0x81, 0x83 };
 216 static const u8 IT87_REG_FANX_MIN[]     = { 0x1b, 0x1c, 0x1d, 0x85, 0x87 };
 217 static const u8 IT87_REG_TEMP_OFFSET[]  = { 0x56, 0x57, 0x59 };
 218
 219 #define IT87_REG_FAN_MAIN_CTRL 0x13
 220 #define IT87_REG_FAN_CTL       0x14
 221 #define IT87_REG_PWM(nr)       (0x15 + (nr))
 222 #define IT87_REG_PWM_DUTY(nr)  (0x63 + (nr) * 8)
 223
 224 #define IT87_REG_VIN(nr)       (0x20 + (nr))
 225 #define IT87_REG_TEMP(nr)      (0x29 + (nr))
 226
 227 #define IT87_REG_VIN_MAX(nr)   (0x30 + (nr) * 2)
 228 #define IT87_REG_VIN_MIN(nr)   (0x31 + (nr) * 2)
 229 #define IT87_REG_TEMP_HIGH(nr) (0x40 + (nr) * 2)
 230 #define IT87_REG_TEMP_LOW(nr)  (0x41 + (nr) * 2)
 231
 232 #define IT87_REG_VIN_ENABLE    0x50
 233 #define IT87_REG_TEMP_ENABLE   0x51
 234 #define IT87_REG_TEMP_EXTRA    0x55
 235 #define IT87_REG_BEEP_ENABLE   0x5c
 236
 237 #define IT87_REG_CHIPID        0x58
 238
 239 #define IT87_REG_AUTO_TEMP(nr, i) (0x60 + (nr) * 8 + (i))
 240 #define IT87_REG_AUTO_PWM(nr, i)  (0x65 + (nr) * 8 + (i))
 241
 242 struct it87_devices {
 243         const char *name;
 244         u16 features;
 245         u8 peci_mask;
 246         u8 old_peci_mask;
 247 };
 248
 249 #define FEAT_12MV_ADC           (1 << 0)
 250 #define FEAT_NEWER_AUTOPWM      (1 << 1)
 251 #define FEAT_OLD_AUTOPWM        (1 << 2)
 252 #define FEAT_16BIT_FANS         (1 << 3)
 253 #define FEAT_TEMP_OFFSET        (1 << 4)
 254 #define FEAT_TEMP_PECI          (1 << 5)
 255 #define FEAT_TEMP_OLD_PECI      (1 << 6)
 256
 257 static const struct it87_devices it87_devices[] = {
 258         [it87] = {
 259                 .name = "it87",
 260                 .features = FEAT_OLD_AUTOPWM,   /* may need to overwrite */
 261         },
 262         [it8712] = {
 263                 .name = "it8712",
 264                 .features = FEAT_OLD_AUTOPWM,   /* may need to overwrite */
 265         },
 266         [it8716] = {
 267                 .name = "it8716",
 268                 .features = FEAT_16BIT_FANS | FEAT_TEMP_OFFSET,
 269         },
 270         [it8718] = {
 271                 .name = "it8718",
 272                 .features = FEAT_16BIT_FANS | FEAT_TEMP_OFFSET
 273                   | FEAT_TEMP_OLD_PECI,
 274                 .old_peci_mask = 0x4,
 275         },
 276         [it8720] = {
 277                 .name = "it8720",
 278                 .features = FEAT_16BIT_FANS | FEAT_TEMP_OFFSET
 279                   | FEAT_TEMP_OLD_PECI,
 280                 .old_peci_mask = 0x4,
 281         },
 282         [it8721] = {
 283                 .name = "it8721",
 284                 .features = FEAT_NEWER_AUTOPWM | FEAT_12MV_ADC | FEAT_16BIT_FANS
 285                   | FEAT_TEMP_OFFSET | FEAT_TEMP_OLD_PECI | FEAT_TEMP_PECI,
 286                 .peci_mask = 0x05,
 287                 .old_peci_mask = 0x02,  /* Actually reports PCH */
 288         },
 289         [it8728] = {
 290                 .name = "it8728",
 291                 .features = FEAT_NEWER_AUTOPWM | FEAT_12MV_ADC | FEAT_16BIT_FANS
 292                   | FEAT_TEMP_OFFSET | FEAT_TEMP_PECI,
 293                 .peci_mask = 0x07,
 294         },
 295         [it8771] = {
 296                 .name = "it8771",
 297                 .features = FEAT_NEWER_AUTOPWM | FEAT_12MV_ADC | FEAT_16BIT_FANS
 298                   | FEAT_TEMP_OFFSET | FEAT_TEMP_PECI,
 299                                         /* PECI: guesswork */
 300                                         /* 12mV ADC (OHM) */
 301                                         /* 16 bit fans (OHM) */
 302                 .peci_mask = 0x07,
 303         },
 304         [it8772] = {
 305                 .name = "it8772",
 306                 .features = FEAT_NEWER_AUTOPWM | FEAT_12MV_ADC | FEAT_16BIT_FANS
 307                   | FEAT_TEMP_OFFSET | FEAT_TEMP_PECI,
 308                                         /* PECI (coreboot) */
 309                                         /* 12mV ADC (HWSensors4, OHM) */
 310                                         /* 16 bit fans (HWSensors4, OHM) */
 311                 .peci_mask = 0x07,
 312         },
 313         [it8781] = {
 314                 .name = "it8781",
 315                 .features = FEAT_16BIT_FANS | FEAT_TEMP_OFFSET
 316                   | FEAT_TEMP_OLD_PECI,
 317                 .old_peci_mask = 0x4,
 318         },
 319         [it8782] = {
 320                 .name = "it8782",
 321                 .features = FEAT_16BIT_FANS | FEAT_TEMP_OFFSET
 322                   | FEAT_TEMP_OLD_PECI,
 323                 .old_peci_mask = 0x4,
 324         },
 325         [it8783] = {
 326                 .name = "it8783",
 327                 .features = FEAT_16BIT_FANS | FEAT_TEMP_OFFSET
 328                   | FEAT_TEMP_OLD_PECI,
 329                 .old_peci_mask = 0x4,
 330         },
 331         [it8603] = {
 332                 .name = "it8603",
 333                 .features = FEAT_NEWER_AUTOPWM | FEAT_12MV_ADC | FEAT_16BIT_FANS
 334                   | FEAT_TEMP_OFFSET | FEAT_TEMP_PECI,
 335                 .peci_mask = 0x07,
 336         },
 337 };
 338
 339 #define has_16bit_fans(data)    ((data)->features & FEAT_16BIT_FANS)
 340 #define has_12mv_adc(data)      ((data)->features & FEAT_12MV_ADC)
 341 #define has_newer_autopwm(data) ((data)->features & FEAT_NEWER_AUTOPWM)
 342 #define has_old_autopwm(data)   ((data)->features & FEAT_OLD_AUTOPWM)
 343 #define has_temp_offset(data)   ((data)->features & FEAT_TEMP_OFFSET)
 344 #define has_temp_peci(data, nr) (((data)->features & FEAT_TEMP_PECI) && \
 345                                  ((data)->peci_mask & (1 << nr)))
 346 #define has_temp_old_peci(data, nr) \
 347                                 (((data)->features & FEAT_TEMP_OLD_PECI) && \
 348                                  ((data)->old_peci_mask & (1 << nr)))
 349
 350 struct it87_sio_data {
 351         enum chips type;
 352         /* Values read from Super-I/O config space */
 353         u8 revision;
 354         u8 vid_value;
 355         u8 beep_pin;
 356         u8 internal;    /* Internal sensors can be labeled */
 357         /* Features skipped based on config or DMI */
 358         u16 skip_in;
 359         u8 skip_vid;
 360         u8 skip_fan;
 361         u8 skip_pwm;
 362         u8 skip_temp;
 363 };
 364
 365 /*
 366  * For each registered chip, we need to keep some data in memory.
 367  * The structure is dynamically allocated.
 368  */
 369 struct it87_data {
 370         struct device *hwmon_dev;
 371         enum chips type;
 372         u16 features;
 373         u8 peci_mask;
 374         u8 old_peci_mask;
 375
 376         unsigned short addr;
 377         const char *name;
 378         struct mutex update_lock;
 379         char valid;             /* !=0 if following fields are valid */
 380         unsigned long last_updated;     /* In jiffies */
 381
 382         u16 in_scaled;          /* Internal voltage sensors are scaled */
 383         u8 in[10][3];           /* [nr][0]=in, [1]=min, [2]=max */
 384         u8 has_fan;             /* Bitfield, fans enabled */
 385         u16 fan[5][2];          /* Register values, [nr][0]=fan, [1]=min */
 386         u8 has_temp;            /* Bitfield, temp sensors enabled */
 387         s8 temp[3][4];          /* [nr][0]=temp, [1]=min, [2]=max, [3]=offset */
 388         u8 sensor;              /* Register value (IT87_REG_TEMP_ENABLE) */
 389         u8 extra;               /* Register value (IT87_REG_TEMP_EXTRA) */
 390         u8 fan_div[3];          /* Register encoding, shifted right */
 391         u8 vid;                 /* Register encoding, combined */
 392         u8 vrm;
 393         u32 alarms;             /* Register encoding, combined */
 394         u8 beeps;               /* Register encoding */
 395         u8 fan_main_ctrl;       /* Register value */
 396         u8 fan_ctl;             /* Register value */
 397
 398         /*
 399          * The following 3 arrays correspond to the same registers up to
 400          * the IT8720F. The meaning of bits 6-0 depends on the value of bit
 401          * 7, and we want to preserve settings on mode changes, so we have
 402          * to track all values separately.
 403          * Starting with the IT8721F, the manual PWM duty cycles are stored
 404          * in separate registers (8-bit values), so the separate tracking
 405          * is no longer needed, but it is still done to keep the driver
 406          * simple.
 407          */
 408         u8 pwm_ctrl[3];         /* Register value */
 409         u8 pwm_duty[3];         /* Manual PWM value set by user */
 410         u8 pwm_temp_map[3];     /* PWM to temp. chan. mapping (bits 1-0) */
 411
 412         /* Automatic fan speed control registers */
 413         u8 auto_pwm[3][4];      /* [nr][3] is hard-coded */
 414         s8 auto_temp[3][5];     /* [nr][0] is point1_temp_hyst */
 415 };
 416
 417 static int adc_lsb(const struct it87_data *data, int nr)
 418 {
 419         int lsb = has_12mv_adc(data) ? 12 : 16;
 420         if (data->in_scaled & (1 << nr))
 421                 lsb <<= 1;
 422         return lsb;
 423 }
 424
 425 static u8 in_to_reg(const struct it87_data *data, int nr, long val)
 426 {
 427         val = DIV_ROUND_CLOSEST(val, adc_lsb(data, nr));
 428         return clamp_val(val, 0, 255);
 429 }
 430
 431 static int in_from_reg(const struct it87_data *data, int nr, int val)
 432 {
 433         return val * adc_lsb(data, nr);
 434 }
 435
 436 static inline u8 FAN_TO_REG(long rpm, int div)
 437 {
 438         if (rpm == 0)
 439                 return 255;
 440         rpm = clamp_val(rpm, 1, 1000000);
 441         return clamp_val((1350000 + rpm * div / 2) / (rpm * div), 1, 254);
 442 }
 443
 444 static inline u16 FAN16_TO_REG(long rpm)
 445 {
 446         if (rpm == 0)
 447                 return 0xffff;
 448         return clamp_val((1350000 + rpm) / (rpm * 2), 1, 0xfffe);
 449 }
 450
 451 #define FAN_FROM_REG(val, div) ((val) == 0 ? -1 : (val) == 255 ? 0 : \
 452                                 1350000 / ((val) * (div)))
 453 /* The divider is fixed to 2 in 16-bit mode */
 454 #define FAN16_FROM_REG(val) ((val) == 0 ? -1 : (val) == 0xffff ? 0 : \
 455                              1350000 / ((val) * 2))
 456
 457 #define TEMP_TO_REG(val) (clamp_val(((val) < 0 ? (((val) - 500) / 1000) : \
 458                                     ((val) + 500) / 1000), -128, 127))
 459 #define TEMP_FROM_REG(val) ((val) * 1000)
 460
 461 static u8 pwm_to_reg(const struct it87_data *data, long val)
 462 {
 463         if (has_newer_autopwm(data))
 464                 return val;
 465         else
 466                 return val >> 1;
 467 }
 468
 469 static int pwm_from_reg(const struct it87_data *data, u8 reg)
 470 {
 471         if (has_newer_autopwm(data))
 472                 return reg;
 473         else
 474                 return (reg & 0x7f) << 1;
 475 }
 476
 477
 478 static int DIV_TO_REG(int val)
 479 {
 480         int answer = 0;
 481         while (answer < 7 && (val >>= 1))
 482                 answer++;
 483         return answer;
 484 }
 485 #define DIV_FROM_REG(val) (1 << (val))
 486
 487 static const unsigned int pwm_freq[8] = {
 488         48000000 / 128,
 489         24000000 / 128,
 490         12000000 / 128,
 491         8000000 / 128,
 492         6000000 / 128,
 493         3000000 / 128,
 494         1500000 / 128,
 495         750000 / 128,
 496 };
 497
 498 static int it87_probe(struct platform_device *pdev);
 499 static int it87_remove(struct platform_device *pdev);
 500
 501 static int it87_read_value(struct it87_data *data, u8 reg);
 502 static void it87_write_value(struct it87_data *data, u8 reg, u8 value);
 503 static struct it87_data *it87_update_device(struct device *dev);
 504 static int it87_check_pwm(struct device *dev);
 505 static void it87_init_device(struct platform_device *pdev);
 506
 507
 508 static struct platform_driver it87_driver = {
 509         .driver = {
 510                 .name   = DRVNAME,
 511         },
 512         .probe  = it87_probe,
 513         .remove = it87_remove,
 514 };
 515
 516 static ssize_t show_in(struct device *dev, struct device_attribute *attr,
 517                        char *buf)
 518 {
 519         struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
 520         int nr = sattr->nr;
 521         int index = sattr->index;
 522
 523         struct it87_data *data = it87_update_device(dev);
 524         return sprintf(buf, "%d\n", in_from_reg(data, nr, data->in[nr][index]));
 525 }
 526
 527 static ssize_t set_in(struct device *dev, struct device_attribute *attr,
 528                       const char *buf, size_t count)
 529 {
 530         struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
 531         int nr = sattr->nr;
 532         int index = sattr->index;
 533
 534         struct it87_data *data = dev_get_drvdata(dev);
 535         unsigned long val;
 536
 537         if (kstrtoul(buf, 10, &val) < 0)
 538                 return -EINVAL;
 539
 540         mutex_lock(&data->update_lock);
 541         data->in[nr][index] = in_to_reg(data, nr, val);
 542         it87_write_value(data,
 543                          index == 1 ? IT87_REG_VIN_MIN(nr)
 544                                     : IT87_REG_VIN_MAX(nr),
 545                          data->in[nr][index]);
 546         mutex_unlock(&data->update_lock);
 547         return count;
 548 }
 549
 550 static SENSOR_DEVICE_ATTR_2(in0_input, S_IRUGO, show_in, NULL, 0, 0);
 551 static SENSOR_DEVICE_ATTR_2(in0_min, S_IRUGO | S_IWUSR, show_in, set_in,
 552                             0, 1);
 553 static SENSOR_DEVICE_ATTR_2(in0_max, S_IRUGO | S_IWUSR, show_in, set_in,
 554                             0, 2);
 555
 556 static SENSOR_DEVICE_ATTR_2(in1_input, S_IRUGO, show_in, NULL, 1, 0);
 557 static SENSOR_DEVICE_ATTR_2(in1_min, S_IRUGO | S_IWUSR, show_in, set_in,
 558                             1, 1);
 559 static SENSOR_DEVICE_ATTR_2(in1_max, S_IRUGO | S_IWUSR, show_in, set_in,
 560                             1, 2);
 561
 562 static SENSOR_DEVICE_ATTR_2(in2_input, S_IRUGO, show_in, NULL, 2, 0);
 563 static SENSOR_DEVICE_ATTR_2(in2_min, S_IRUGO | S_IWUSR, show_in, set_in,
 564                             2, 1);
 565 static SENSOR_DEVICE_ATTR_2(in2_max, S_IRUGO | S_IWUSR, show_in, set_in,
 566                             2, 2);
 567
 568 static SENSOR_DEVICE_ATTR_2(in3_input, S_IRUGO, show_in, NULL, 3, 0);
 569 static SENSOR_DEVICE_ATTR_2(in3_min, S_IRUGO | S_IWUSR, show_in, set_in,
 570                             3, 1);
 571 static SENSOR_DEVICE_ATTR_2(in3_max, S_IRUGO | S_IWUSR, show_in, set_in,
 572                             3, 2);
 573
 574 static SENSOR_DEVICE_ATTR_2(in4_input, S_IRUGO, show_in, NULL, 4, 0);
 575 static SENSOR_DEVICE_ATTR_2(in4_min, S_IRUGO | S_IWUSR, show_in, set_in,
 576                             4, 1);
 577 static SENSOR_DEVICE_ATTR_2(in4_max, S_IRUGO | S_IWUSR, show_in, set_in,
 578                             4, 2);
 579
 580 static SENSOR_DEVICE_ATTR_2(in5_input, S_IRUGO, show_in, NULL, 5, 0);
 581 static SENSOR_DEVICE_ATTR_2(in5_min, S_IRUGO | S_IWUSR, show_in, set_in,
 582                             5, 1);
 583 static SENSOR_DEVICE_ATTR_2(in5_max, S_IRUGO | S_IWUSR, show_in, set_in,
 584                             5, 2);
 585
 586 static SENSOR_DEVICE_ATTR_2(in6_input, S_IRUGO, show_in, NULL, 6, 0);
 587 static SENSOR_DEVICE_ATTR_2(in6_min, S_IRUGO | S_IWUSR, show_in, set_in,
 588                             6, 1);
 589 static SENSOR_DEVICE_ATTR_2(in6_max, S_IRUGO | S_IWUSR, show_in, set_in,
 590                             6, 2);
 591
 592 static SENSOR_DEVICE_ATTR_2(in7_input, S_IRUGO, show_in, NULL, 7, 0);
 593 static SENSOR_DEVICE_ATTR_2(in7_min, S_IRUGO | S_IWUSR, show_in, set_in,
 594                             7, 1);
 595 static SENSOR_DEVICE_ATTR_2(in7_max, S_IRUGO | S_IWUSR, show_in, set_in,
 596                             7, 2);
 597
 598 static SENSOR_DEVICE_ATTR_2(in8_input, S_IRUGO, show_in, NULL, 8, 0);
 599 static SENSOR_DEVICE_ATTR_2(in9_input, S_IRUGO, show_in, NULL, 9, 0);
 600
 601 /* 3 temperatures */
 602 static ssize_t show_temp(struct device *dev, struct device_attribute *attr,
 603                          char *buf)
 604 {
 605         struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
 606         int nr = sattr->nr;
 607         int index = sattr->index;
 608         struct it87_data *data = it87_update_device(dev);
 609
 610         return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[nr][index]));
 611 }
 612
 613 static ssize_t set_temp(struct device *dev, struct device_attribute *attr,
 614                         const char *buf, size_t count)
 615 {
 616         struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
 617         int nr = sattr->nr;
 618         int index = sattr->index;
 619         struct it87_data *data = dev_get_drvdata(dev);
 620         long val;
 621         u8 reg, regval;
 622
 623         if (kstrtol(buf, 10, &val) < 0)
 624                 return -EINVAL;
 625
 626         mutex_lock(&data->update_lock);
 627
 628         switch (index) {
 629         default:
 630         case 1:
 631                 reg = IT87_REG_TEMP_LOW(nr);
 632                 break;
 633         case 2:
 634                 reg = IT87_REG_TEMP_HIGH(nr);
 635                 break;
 636         case 3:
 637                 regval = it87_read_value(data, IT87_REG_BEEP_ENABLE);
 638                 if (!(regval & 0x80)) {
 639                         regval |= 0x80;
 640                         it87_write_value(data, IT87_REG_BEEP_ENABLE, regval);
 641                 }
 642                 data->valid = 0;
 643                 reg = IT87_REG_TEMP_OFFSET[nr];
 644                 break;
 645         }
 646
 647         data->temp[nr][index] = TEMP_TO_REG(val);
 648         it87_write_value(data, reg, data->temp[nr][index]);
 649         mutex_unlock(&data->update_lock);
 650         return count;
 651 }
 652
 653 static SENSOR_DEVICE_ATTR_2(temp1_input, S_IRUGO, show_temp, NULL, 0, 0);
 654 static SENSOR_DEVICE_ATTR_2(temp1_min, S_IRUGO | S_IWUSR, show_temp, set_temp,
 655                             0, 1);
 656 static SENSOR_DEVICE_ATTR_2(temp1_max, S_IRUGO | S_IWUSR, show_temp, set_temp,
 657                             0, 2);
 658 static SENSOR_DEVICE_ATTR_2(temp1_offset, S_IRUGO | S_IWUSR, show_temp,
 659                             set_temp, 0, 3);
 660 static SENSOR_DEVICE_ATTR_2(temp2_input, S_IRUGO, show_temp, NULL, 1, 0);
 661 static SENSOR_DEVICE_ATTR_2(temp2_min, S_IRUGO | S_IWUSR, show_temp, set_temp,
 662                             1, 1);
 663 static SENSOR_DEVICE_ATTR_2(temp2_max, S_IRUGO | S_IWUSR, show_temp, set_temp,
 664                             1, 2);
 665 static SENSOR_DEVICE_ATTR_2(temp2_offset, S_IRUGO | S_IWUSR, show_temp,
 666                             set_temp, 1, 3);
 667 static SENSOR_DEVICE_ATTR_2(temp3_input, S_IRUGO, show_temp, NULL, 2, 0);
 668 static SENSOR_DEVICE_ATTR_2(temp3_min, S_IRUGO | S_IWUSR, show_temp, set_temp,
 669                             2, 1);
 670 static SENSOR_DEVICE_ATTR_2(temp3_max, S_IRUGO | S_IWUSR, show_temp, set_temp,
 671                             2, 2);
 672 static SENSOR_DEVICE_ATTR_2(temp3_offset, S_IRUGO | S_IWUSR, show_temp,
 673                             set_temp, 2, 3);
 674
 675 static ssize_t show_temp_type(struct device *dev, struct device_attribute *attr,
 676                               char *buf)
 677 {
 678         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 679         int nr = sensor_attr->index;
 680         struct it87_data *data = it87_update_device(dev);
 681         u8 reg = data->sensor;      /* In case value is updated while used */
 682         u8 extra = data->extra;
 683
 684         if ((has_temp_peci(data, nr) && (reg >> 6 == nr + 1))
 685             || (has_temp_old_peci(data, nr) && (extra & 0x80)))
 686                 return sprintf(buf, "6\n");  /* Intel PECI */
 687         if (reg & (1 << nr))
 688                 return sprintf(buf, "3\n");  /* thermal diode */
 689         if (reg & (8 << nr))
 690                 return sprintf(buf, "4\n");  /* thermistor */
 691         return sprintf(buf, "0\n");      /* disabled */
 692 }
 693
 694 static ssize_t set_temp_type(struct device *dev, struct device_attribute *attr,
 695                              const char *buf, size_t count)
 696 {
 697         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 698         int nr = sensor_attr->index;
 699
 700         struct it87_data *data = dev_get_drvdata(dev);
 701         long val;
 702         u8 reg, extra;
 703
 704         if (kstrtol(buf, 10, &val) < 0)
 705                 return -EINVAL;
 706
 707         reg = it87_read_value(data, IT87_REG_TEMP_ENABLE);
 708         reg &= ~(1 << nr);
 709         reg &= ~(8 << nr);
 710         if (has_temp_peci(data, nr) && (reg >> 6 == nr + 1 || val == 6))
 711                 reg &= 0x3f;
 712         extra = it87_read_value(data, IT87_REG_TEMP_EXTRA);
 713         if (has_temp_old_peci(data, nr) && ((extra & 0x80) || val == 6))
 714                 extra &= 0x7f;
 715         if (val == 2) { /* backwards compatibility */
 716                 dev_warn(dev,
 717                          "Sensor type 2 is deprecated, please use 4 instead\n");
 718                 val = 4;
 719         }
 720         /* 3 = thermal diode; 4 = thermistor; 6 = Intel PECI; 0 = disabled */
 721         if (val == 3)
 722                 reg |= 1 << nr;
 723         else if (val == 4)
 724                 reg |= 8 << nr;
 725         else if (has_temp_peci(data, nr) && val == 6)
 726                 reg |= (nr + 1) << 6;
 727         else if (has_temp_old_peci(data, nr) && val == 6)
 728                 extra |= 0x80;
 729         else if (val != 0)
 730                 return -EINVAL;
 731
 732         mutex_lock(&data->update_lock);
 733         data->sensor = reg;
 734         data->extra = extra;
 735         it87_write_value(data, IT87_REG_TEMP_ENABLE, data->sensor);
 736         if (has_temp_old_peci(data, nr))
 737                 it87_write_value(data, IT87_REG_TEMP_EXTRA, data->extra);
 738         data->valid = 0;        /* Force cache refresh */
 739         mutex_unlock(&data->update_lock);
 740         return count;
 741 }
 742
 743 static SENSOR_DEVICE_ATTR(temp1_type, S_IRUGO | S_IWUSR, show_temp_type,
 744                           set_temp_type, 0);
 745 static SENSOR_DEVICE_ATTR(temp2_type, S_IRUGO | S_IWUSR, show_temp_type,
 746                           set_temp_type, 1);
 747 static SENSOR_DEVICE_ATTR(temp3_type, S_IRUGO | S_IWUSR, show_temp_type,
 748                           set_temp_type, 2);
 749
 750 /* 3 Fans */
 751
 752 static int pwm_mode(const struct it87_data *data, int nr)
 753 {
 754         int ctrl = data->fan_main_ctrl & (1 << nr);
 755
 756         if (ctrl == 0 && data->type != it8603)          /* Full speed */
 757                 return 0;
 758         if (data->pwm_ctrl[nr] & 0x80)                  /* Automatic mode */
 759                 return 2;
 760         else                                            /* Manual mode */
 761                 return 1;
 762 }
 763
 764 static ssize_t show_fan(struct device *dev, struct device_attribute *attr,
 765                         char *buf)
 766 {
 767         struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
 768         int nr = sattr->nr;
 769         int index = sattr->index;
 770         int speed;
 771         struct it87_data *data = it87_update_device(dev);
 772
 773         speed = has_16bit_fans(data) ?
 774                 FAN16_FROM_REG(data->fan[nr][index]) :
 775                 FAN_FROM_REG(data->fan[nr][index],
 776                              DIV_FROM_REG(data->fan_div[nr]));
 777         return sprintf(buf, "%d\n", speed);
 778 }
 779
 780 static ssize_t show_fan_div(struct device *dev, struct device_attribute *attr,
 781                 char *buf)
 782 {
 783         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 784         int nr = sensor_attr->index;
 785
 786         struct it87_data *data = it87_update_device(dev);
 787         return sprintf(buf, "%d\n", DIV_FROM_REG(data->fan_div[nr]));
 788 }
 789 static ssize_t show_pwm_enable(struct device *dev,
 790                 struct device_attribute *attr, char *buf)
 791 {
 792         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 793         int nr = sensor_attr->index;
 794
 795         struct it87_data *data = it87_update_device(dev);
 796         return sprintf(buf, "%d\n", pwm_mode(data, nr));
 797 }
 798 static ssize_t show_pwm(struct device *dev, struct device_attribute *attr,
 799                 char *buf)
 800 {
 801         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 802         int nr = sensor_attr->index;
 803
 804         struct it87_data *data = it87_update_device(dev);
 805         return sprintf(buf, "%d\n",
 806                        pwm_from_reg(data, data->pwm_duty[nr]));
 807 }
 808 static ssize_t show_pwm_freq(struct device *dev, struct device_attribute *attr,
 809                 char *buf)
 810 {
 811         struct it87_data *data = it87_update_device(dev);
 812         int index = (data->fan_ctl >> 4) & 0x07;
 813
 814         return sprintf(buf, "%u\n", pwm_freq[index]);
 815 }
 816
 817 static ssize_t set_fan(struct device *dev, struct device_attribute *attr,
 818                        const char *buf, size_t count)
 819 {
 820         struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
 821         int nr = sattr->nr;
 822         int index = sattr->index;
 823
 824         struct it87_data *data = dev_get_drvdata(dev);
 825         long val;
 826         u8 reg;
 827
 828         if (kstrtol(buf, 10, &val) < 0)
 829                 return -EINVAL;
 830
 831         mutex_lock(&data->update_lock);
 832
 833         if (has_16bit_fans(data)) {
 834                 data->fan[nr][index] = FAN16_TO_REG(val);
 835                 it87_write_value(data, IT87_REG_FAN_MIN[nr],
 836                                  data->fan[nr][index] & 0xff);
 837                 it87_write_value(data, IT87_REG_FANX_MIN[nr],
 838                                  data->fan[nr][index] >> 8);
 839         } else {
 840                 reg = it87_read_value(data, IT87_REG_FAN_DIV);
 841                 switch (nr) {
 842                 case 0:
 843                         data->fan_div[nr] = reg & 0x07;
 844                         break;
 845                 case 1:
 846                         data->fan_div[nr] = (reg >> 3) & 0x07;
 847                         break;
 848                 case 2:
 849                         data->fan_div[nr] = (reg & 0x40) ? 3 : 1;
 850                         break;
 851                 }
 852                 data->fan[nr][index] =
 853                   FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr]));
 854                 it87_write_value(data, IT87_REG_FAN_MIN[nr],
 855                                  data->fan[nr][index]);
 856         }
 857
 858         mutex_unlock(&data->update_lock);
 859         return count;
 860 }
 861
 862 static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr,
 863                 const char *buf, size_t count)
 864 {
 865         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 866         int nr = sensor_attr->index;
 867
 868         struct it87_data *data = dev_get_drvdata(dev);
 869         unsigned long val;
 870         int min;
 871         u8 old;
 872
 873         if (kstrtoul(buf, 10, &val) < 0)
 874                 return -EINVAL;
 875
 876         mutex_lock(&data->update_lock);
 877         old = it87_read_value(data, IT87_REG_FAN_DIV);
 878
 879         /* Save fan min limit */
 880         min = FAN_FROM_REG(data->fan[nr][1], DIV_FROM_REG(data->fan_div[nr]));
 881
 882         switch (nr) {
 883         case 0:
 884         case 1:
 885                 data->fan_div[nr] = DIV_TO_REG(val);
 886                 break;
 887         case 2:
 888                 if (val < 8)
 889                         data->fan_div[nr] = 1;
 890                 else
 891                         data->fan_div[nr] = 3;
 892         }
 893         val = old & 0x80;
 894         val |= (data->fan_div[0] & 0x07);
 895         val |= (data->fan_div[1] & 0x07) << 3;
 896         if (data->fan_div[2] == 3)
 897                 val |= 0x1 << 6;
 898         it87_write_value(data, IT87_REG_FAN_DIV, val);
 899
 900         /* Restore fan min limit */
 901         data->fan[nr][1] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr]));
 902         it87_write_value(data, IT87_REG_FAN_MIN[nr], data->fan[nr][1]);
 903
 904         mutex_unlock(&data->update_lock);
 905         return count;
 906 }
 907
 908 /* Returns 0 if OK, -EINVAL otherwise */
 909 static int check_trip_points(struct device *dev, int nr)
 910 {
 911         const struct it87_data *data = dev_get_drvdata(dev);
 912         int i, err = 0;
 913
 914         if (has_old_autopwm(data)) {
 915                 for (i = 0; i < 3; i++) {
 916                         if (data->auto_temp[nr][i] > data->auto_temp[nr][i + 1])
 917                                 err = -EINVAL;
 918                 }
 919                 for (i = 0; i < 2; i++) {
 920                         if (data->auto_pwm[nr][i] > data->auto_pwm[nr][i + 1])
 921                                 err = -EINVAL;
 922                 }
 923         }
 924
 925         if (err) {
 926                 dev_err(dev,
 927                         "Inconsistent trip points, not switching to automatic mode\n");
 928                 dev_err(dev, "Adjust the trip points and try again\n");
 929         }
 930         return err;
 931 }
 932
 933 static ssize_t set_pwm_enable(struct device *dev,
 934                 struct device_attribute *attr, const char *buf, size_t count)
 935 {
 936         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 937         int nr = sensor_attr->index;
 938
 939         struct it87_data *data = dev_get_drvdata(dev);
 940         long val;
 941
 942         if (kstrtol(buf, 10, &val) < 0 || val < 0 || val > 2)
 943                 return -EINVAL;
 944
 945         /* Check trip points before switching to automatic mode */
 946         if (val == 2) {
 947                 if (check_trip_points(dev, nr) < 0)
 948                         return -EINVAL;
 949         }
 950
 951         /* IT8603E does not have on/off mode */
 952         if (val == 0 && data->type == it8603)
 953                 return -EINVAL;
 954
 955         mutex_lock(&data->update_lock);
 956
 957         if (val == 0) {
 958                 int tmp;
 959                 /* make sure the fan is on when in on/off mode */
 960                 tmp = it87_read_value(data, IT87_REG_FAN_CTL);
 961                 it87_write_value(data, IT87_REG_FAN_CTL, tmp | (1 << nr));
 962                 /* set on/off mode */
 963                 data->fan_main_ctrl &= ~(1 << nr);
 964                 it87_write_value(data, IT87_REG_FAN_MAIN_CTRL,
 965                                  data->fan_main_ctrl);
 966         } else {
 967                 if (val == 1)                           /* Manual mode */
 968                         data->pwm_ctrl[nr] = has_newer_autopwm(data) ?
 969                                              data->pwm_temp_map[nr] :
 970                                              data->pwm_duty[nr];
 971                 else                                    /* Automatic mode */
 972                         data->pwm_ctrl[nr] = 0x80 | data->pwm_temp_map[nr];
 973                 it87_write_value(data, IT87_REG_PWM(nr), data->pwm_ctrl[nr]);
 974
 975                 if (data->type != it8603) {
 976                         /* set SmartGuardian mode */
 977                         data->fan_main_ctrl |= (1 << nr);
 978                         it87_write_value(data, IT87_REG_FAN_MAIN_CTRL,
 979                                          data->fan_main_ctrl);
 980                 }
 981         }
 982
 983         mutex_unlock(&data->update_lock);
 984         return count;
 985 }
 986 static ssize_t set_pwm(struct device *dev, struct device_attribute *attr,
 987                 const char *buf, size_t count)
 988 {
 989         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 990         int nr = sensor_attr->index;
 991
 992         struct it87_data *data = dev_get_drvdata(dev);
 993         long val;
 994
 995         if (kstrtol(buf, 10, &val) < 0 || val < 0 || val > 255)
 996                 return -EINVAL;
 997
 998         mutex_lock(&data->update_lock);
 999         if (has_newer_autopwm(data)) {
1000                 /*
1001                  * If we are in automatic mode, the PWM duty cycle register
1002                  * is read-only so we can't write the value.
1003                  */
1004                 if (data->pwm_ctrl[nr] & 0x80) {
1005                         mutex_unlock(&data->update_lock);
1006                         return -EBUSY;
1007                 }
1008                 data->pwm_duty[nr] = pwm_to_reg(data, val);
1009                 it87_write_value(data, IT87_REG_PWM_DUTY(nr),
1010                                  data->pwm_duty[nr]);
1011         } else {
1012                 data->pwm_duty[nr] = pwm_to_reg(data, val);
1013                 /*
1014                  * If we are in manual mode, write the duty cycle immediately;
1015                  * otherwise, just store it for later use.
1016                  */
1017                 if (!(data->pwm_ctrl[nr] & 0x80)) {
1018                         data->pwm_ctrl[nr] = data->pwm_duty[nr];
1019                         it87_write_value(data, IT87_REG_PWM(nr),
1020                                          data->pwm_ctrl[nr]);
1021                 }
1022         }
1023         mutex_unlock(&data->update_lock);
1024         return count;
1025 }
1026 static ssize_t set_pwm_freq(struct device *dev,
1027                 struct device_attribute *attr, const char *buf, size_t count)
1028 {
1029         struct it87_data *data = dev_get_drvdata(dev);
1030         unsigned long val;
1031         int i;
1032
1033         if (kstrtoul(buf, 10, &val) < 0)
1034                 return -EINVAL;
1035
1036         /* Search for the nearest available frequency */
1037         for (i = 0; i < 7; i++) {
1038                 if (val > (pwm_freq[i] + pwm_freq[i+1]) / 2)
1039                         break;
1040         }
1041
1042         mutex_lock(&data->update_lock);
1043         data->fan_ctl = it87_read_value(data, IT87_REG_FAN_CTL) & 0x8f;
1044         data->fan_ctl |= i << 4;
1045         it87_write_value(data, IT87_REG_FAN_CTL, data->fan_ctl);
1046         mutex_unlock(&data->update_lock);
1047
1048         return count;
1049 }
1050 static ssize_t show_pwm_temp_map(struct device *dev,
1051                 struct device_attribute *attr, char *buf)
1052 {
1053         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1054         int nr = sensor_attr->index;
1055
1056         struct it87_data *data = it87_update_device(dev);
1057         int map;
1058
1059         if (data->pwm_temp_map[nr] < 3)
1060                 map = 1 << data->pwm_temp_map[nr];
1061         else
1062                 map = 0;                        /* Should never happen */
1063         return sprintf(buf, "%d\n", map);
1064 }
1065 static ssize_t set_pwm_temp_map(struct device *dev,
1066                 struct device_attribute *attr, const char *buf, size_t count)
1067 {
1068         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
1069         int nr = sensor_attr->index;
1070
1071         struct it87_data *data = dev_get_drvdata(dev);
1072         long val;
1073         u8 reg;
1074
1075         /*
1076          * This check can go away if we ever support automatic fan speed
1077          * control on newer chips.
1078          */
1079         if (!has_old_autopwm(data)) {
1080                 dev_notice(dev, "Mapping change disabled for safety reasons\n");
1081                 return -EINVAL;
1082         }
1083
1084         if (kstrtol(buf, 10, &val) < 0)
1085                 return -EINVAL;
1086
1087         switch (val) {
1088         case (1 << 0):
1089                 reg = 0x00;
1090                 break;
1091         case (1 << 1):
1092                 reg = 0x01;
1093                 break;
1094         case (1 << 2):
1095                 reg = 0x02;
1096                 break;
1097         default:
1098                 return -EINVAL;
1099         }
1100
1101         mutex_lock(&data->update_lock);
1102         data->pwm_temp_map[nr] = reg;
1103         /*
1104          * If we are in automatic mode, write the temp mapping immediately;
1105          * otherwise, just store it for later use.
1106          */
1107         if (data->pwm_ctrl[nr] & 0x80) {
1108                 data->pwm_ctrl[nr] = 0x80 | data->pwm_temp_map[nr];
1109                 it87_write_value(data, IT87_REG_PWM(nr), data->pwm_ctrl[nr]);
1110         }
1111         mutex_unlock(&data->update_lock);
1112         return count;
1113 }
1114
1115 static ssize_t show_auto_pwm(struct device *dev,
1116                 struct device_attribute *attr, char *buf)
1117 {
1118         struct it87_data *data = it87_update_device(dev);
1119         struct sensor_device_attribute_2 *sensor_attr =
1120                         to_sensor_dev_attr_2(attr);
1121         int nr = sensor_attr->nr;
1122         int point = sensor_attr->index;
1123
1124         return sprintf(buf, "%d\n",
1125                        pwm_from_reg(data, data->auto_pwm[nr][point]));
1126 }
1127
1128 static ssize_t set_auto_pwm(struct device *dev,
1129                 struct device_attribute *attr, const char *buf, size_t count)
1130 {
1131         struct it87_data *data = dev_get_drvdata(dev);
1132         struct sensor_device_attribute_2 *sensor_attr =
1133                         to_sensor_dev_attr_2(attr);
1134         int nr = sensor_attr->nr;
1135         int point = sensor_attr->index;
1136         long val;
1137
1138         if (kstrtol(buf, 10, &val) < 0 || val < 0 || val > 255)
1139                 return -EINVAL;
1140
1141         mutex_lock(&data->update_lock);
1142         data->auto_pwm[nr][point] = pwm_to_reg(data, val);
1143         it87_write_value(data, IT87_REG_AUTO_PWM(nr, point),
1144                          data->auto_pwm[nr][point]);
1145         mutex_unlock(&data->update_lock);
1146         return count;
1147 }
1148
1149 static ssize_t show_auto_temp(struct device *dev,
1150                 struct device_attribute *attr, char *buf)
1151 {
1152         struct it87_data *data = it87_update_device(dev);
1153         struct sensor_device_attribute_2 *sensor_attr =
1154                         to_sensor_dev_attr_2(attr);
1155         int nr = sensor_attr->nr;
1156         int point = sensor_attr->index;
1157
1158         return sprintf(buf, "%d\n", TEMP_FROM_REG(data->auto_temp[nr][point]));
1159 }
1160
1161 static ssize_t set_auto_temp(struct device *dev,
1162                 struct device_attribute *attr, const char *buf, size_t count)
1163 {
1164         struct it87_data *data = dev_get_drvdata(dev);
1165         struct sensor_device_attribute_2 *sensor_attr =
1166                         to_sensor_dev_attr_2(attr);
1167         int nr = sensor_attr->nr;
1168         int point = sensor_attr->index;
1169         long val;
1170
1171         if (kstrtol(buf, 10, &val) < 0 || val < -128000 || val > 127000)
1172                 return -EINVAL;
1173
1174         mutex_lock(&data->update_lock);
1175         data->auto_temp[nr][point] = TEMP_TO_REG(val);
1176         it87_write_value(data, IT87_REG_AUTO_TEMP(nr, point),
1177                          data->auto_temp[nr][point]);
1178         mutex_unlock(&data->update_lock);
1179         return count;
1180 }
1181
1182 static SENSOR_DEVICE_ATTR_2(fan1_input, S_IRUGO, show_fan, NULL, 0, 0);
1183 static SENSOR_DEVICE_ATTR_2(fan1_min, S_IRUGO | S_IWUSR, show_fan, set_fan,
1184                             0, 1);
1185 static SENSOR_DEVICE_ATTR(fan1_div, S_IRUGO | S_IWUSR, show_fan_div,
1186                           set_fan_div, 0);
1187
1188 static SENSOR_DEVICE_ATTR_2(fan2_input, S_IRUGO, show_fan, NULL, 1, 0);
1189 static SENSOR_DEVICE_ATTR_2(fan2_min, S_IRUGO | S_IWUSR, show_fan, set_fan,
1190                             1, 1);
1191 static SENSOR_DEVICE_ATTR(fan2_div, S_IRUGO | S_IWUSR, show_fan_div,
1192                           set_fan_div, 1);
1193
1194 static SENSOR_DEVICE_ATTR_2(fan3_input, S_IRUGO, show_fan, NULL, 2, 0);
1195 static SENSOR_DEVICE_ATTR_2(fan3_min, S_IRUGO | S_IWUSR, show_fan, set_fan,
1196                             2, 1);
1197 static SENSOR_DEVICE_ATTR(fan3_div, S_IRUGO | S_IWUSR, show_fan_div,
1198                           set_fan_div, 2);
1199
1200 static SENSOR_DEVICE_ATTR_2(fan4_input, S_IRUGO, show_fan, NULL, 3, 0);
1201 static SENSOR_DEVICE_ATTR_2(fan4_min, S_IRUGO | S_IWUSR, show_fan, set_fan,
1202                             3, 1);
1203
1204 static SENSOR_DEVICE_ATTR_2(fan5_input, S_IRUGO, show_fan, NULL, 4, 0);
1205 static SENSOR_DEVICE_ATTR_2(fan5_min, S_IRUGO | S_IWUSR, show_fan, set_fan,
1206                             4, 1);
1207
1208 static SENSOR_DEVICE_ATTR(pwm1_enable, S_IRUGO | S_IWUSR,
1209                           show_pwm_enable, set_pwm_enable, 0);
1210 static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO | S_IWUSR, show_pwm, set_pwm, 0);
1211 static DEVICE_ATTR(pwm1_freq, S_IRUGO | S_IWUSR, show_pwm_freq, set_pwm_freq);
1212 static SENSOR_DEVICE_ATTR(pwm1_auto_channels_temp, S_IRUGO | S_IWUSR,
1213                           show_pwm_temp_map, set_pwm_temp_map, 0);
1214 static SENSOR_DEVICE_ATTR_2(pwm1_auto_point1_pwm, S_IRUGO | S_IWUSR,
1215                             show_auto_pwm, set_auto_pwm, 0, 0);
1216 static SENSOR_DEVICE_ATTR_2(pwm1_auto_point2_pwm, S_IRUGO | S_IWUSR,
1217                             show_auto_pwm, set_auto_pwm, 0, 1);
1218 static SENSOR_DEVICE_ATTR_2(pwm1_auto_point3_pwm, S_IRUGO | S_IWUSR,
1219                             show_auto_pwm, set_auto_pwm, 0, 2);
1220 static SENSOR_DEVICE_ATTR_2(pwm1_auto_point4_pwm, S_IRUGO,
1221                             show_auto_pwm, NULL, 0, 3);
1222 static SENSOR_DEVICE_ATTR_2(pwm1_auto_point1_temp, S_IRUGO | S_IWUSR,
1223                             show_auto_temp, set_auto_temp, 0, 1);
1224 static SENSOR_DEVICE_ATTR_2(pwm1_auto_point1_temp_hyst, S_IRUGO | S_IWUSR,
1225                             show_auto_temp, set_auto_temp, 0, 0);
1226 static SENSOR_DEVICE_ATTR_2(pwm1_auto_point2_temp, S_IRUGO | S_IWUSR,
1227                             show_auto_temp, set_auto_temp, 0, 2);
1228 static SENSOR_DEVICE_ATTR_2(pwm1_auto_point3_temp, S_IRUGO | S_IWUSR,
1229                             show_auto_temp, set_auto_temp, 0, 3);
1230 static SENSOR_DEVICE_ATTR_2(pwm1_auto_point4_temp, S_IRUGO | S_IWUSR,
1231                             show_auto_temp, set_auto_temp, 0, 4);
1232
1233 static SENSOR_DEVICE_ATTR(pwm2_enable, S_IRUGO | S_IWUSR,
1234                           show_pwm_enable, set_pwm_enable, 1);
1235 static SENSOR_DEVICE_ATTR(pwm2, S_IRUGO | S_IWUSR, show_pwm, set_pwm, 1);
1236 static DEVICE_ATTR(pwm2_freq, S_IRUGO, show_pwm_freq, NULL);
1237 static SENSOR_DEVICE_ATTR(pwm2_auto_channels_temp, S_IRUGO | S_IWUSR,
1238                           show_pwm_temp_map, set_pwm_temp_map, 1);
1239 static SENSOR_DEVICE_ATTR_2(pwm2_auto_point1_pwm, S_IRUGO | S_IWUSR,
1240                             show_auto_pwm, set_auto_pwm, 1, 0);
1241 static SENSOR_DEVICE_ATTR_2(pwm2_auto_point2_pwm, S_IRUGO | S_IWUSR,
1242                             show_auto_pwm, set_auto_pwm, 1, 1);
1243 static SENSOR_DEVICE_ATTR_2(pwm2_auto_point3_pwm, S_IRUGO | S_IWUSR,
1244                             show_auto_pwm, set_auto_pwm, 1, 2);
1245 static SENSOR_DEVICE_ATTR_2(pwm2_auto_point4_pwm, S_IRUGO,
1246                             show_auto_pwm, NULL, 1, 3);
1247 static SENSOR_DEVICE_ATTR_2(pwm2_auto_point1_temp, S_IRUGO | S_IWUSR,
1248                             show_auto_temp, set_auto_temp, 1, 1);
1249 static SENSOR_DEVICE_ATTR_2(pwm2_auto_point1_temp_hyst, S_IRUGO | S_IWUSR,
1250                             show_auto_temp, set_auto_temp, 1, 0);
1251 static SENSOR_DEVICE_ATTR_2(pwm2_auto_point2_temp, S_IRUGO | S_IWUSR,
1252                             show_auto_temp, set_auto_temp, 1, 2);
1253 static SENSOR_DEVICE_ATTR_2(pwm2_auto_point3_temp, S_IRUGO | S_IWUSR,
1254                             show_auto_temp, set_auto_temp, 1, 3);
1255 static SENSOR_DEVICE_ATTR_2(pwm2_auto_point4_temp, S_IRUGO | S_IWUSR,
1256                             show_auto_temp, set_auto_temp, 1, 4);
1257
1258 static SENSOR_DEVICE_ATTR(pwm3_enable, S_IRUGO | S_IWUSR,
1259                           show_pwm_enable, set_pwm_enable, 2);
1260 static SENSOR_DEVICE_ATTR(pwm3, S_IRUGO | S_IWUSR, show_pwm, set_pwm, 2);
1261 static DEVICE_ATTR(pwm3_freq, S_IRUGO, show_pwm_freq, NULL);
1262 static SENSOR_DEVICE_ATTR(pwm3_auto_channels_temp, S_IRUGO | S_IWUSR,
1263                           show_pwm_temp_map, set_pwm_temp_map, 2);
1264 static SENSOR_DEVICE_ATTR_2(pwm3_auto_point1_pwm, S_IRUGO | S_IWUSR,
1265                             show_auto_pwm, set_auto_pwm, 2, 0);
1266 static SENSOR_DEVICE_ATTR_2(pwm3_auto_point2_pwm, S_IRUGO | S_IWUSR,
1267                             show_auto_pwm, set_auto_pwm, 2, 1);
1268 static SENSOR_DEVICE_ATTR_2(pwm3_auto_point3_pwm, S_IRUGO | S_IWUSR,
1269                             show_auto_pwm, set_auto_pwm, 2, 2);
1270 static SENSOR_DEVICE_ATTR_2(pwm3_auto_point4_pwm, S_IRUGO,
1271                             show_auto_pwm, NULL, 2, 3);
1272 static SENSOR_DEVICE_ATTR_2(pwm3_auto_point1_temp, S_IRUGO | S_IWUSR,
1273                             show_auto_temp, set_auto_temp, 2, 1);
1274 static SENSOR_DEVICE_ATTR_2(pwm3_auto_point1_temp_hyst, S_IRUGO | S_IWUSR,
1275                             show_auto_temp, set_auto_temp, 2, 0);
1276 static SENSOR_DEVICE_ATTR_2(pwm3_auto_point2_temp, S_IRUGO | S_IWUSR,
1277                             show_auto_temp, set_auto_temp, 2, 2);
1278 static SENSOR_DEVICE_ATTR_2(pwm3_auto_point3_temp, S_IRUGO | S_IWUSR,
1279                             show_auto_temp, set_auto_temp, 2, 3);
1280 static SENSOR_DEVICE_ATTR_2(pwm3_auto_point4_temp, S_IRUGO | S_IWUSR,
1281                             show_auto_temp, set_auto_temp, 2, 4);
1282
1283 /* Alarms */
1284 static ssize_t show_alarms(struct device *dev, struct device_attribute *attr,
1285                 char *buf)
1286 {
1287         struct it87_data *data = it87_update_device(dev);
1288         return sprintf(buf, "%u\n", data->alarms);
1289 }
1290 static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
1291
1292 static ssize_t show_alarm(struct device *dev, struct device_attribute *attr,
1293                 char *buf)
1294 {
1295         int bitnr = to_sensor_dev_attr(attr)->index;
1296         struct it87_data *data = it87_update_device(dev);
1297         return sprintf(buf, "%u\n", (data->alarms >> bitnr) & 1);
1298 }
1299
1300 static ssize_t clear_intrusion(struct device *dev, struct device_attribute
1301                 *attr, const char *buf, size_t count)
1302 {
1303         struct it87_data *data = dev_get_drvdata(dev);
1304         long val;
1305         int config;
1306
1307         if (kstrtol(buf, 10, &val) < 0 || val != 0)
1308                 return -EINVAL;
1309
1310         mutex_lock(&data->update_lock);
1311         config = it87_read_value(data, IT87_REG_CONFIG);
1312         if (config < 0) {
1313                 count = config;
1314         } else {
1315                 config |= 1 << 5;
1316                 it87_write_value(data, IT87_REG_CONFIG, config);
1317                 /* Invalidate cache to force re-read */
1318                 data->valid = 0;
1319         }
1320         mutex_unlock(&data->update_lock);
1321
1322         return count;
1323 }
1324
1325 static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 8);
1326 static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 9);
1327 static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 10);
1328 static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 11);
1329 static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 12);
1330 static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 13);
1331 static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 14);
1332 static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 15);
1333 static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 0);
1334 static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 1);
1335 static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 2);
1336 static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 3);
1337 static SENSOR_DEVICE_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 6);
1338 static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 16);
1339 static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 17);
1340 static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 18);
1341 static SENSOR_DEVICE_ATTR(intrusion0_alarm, S_IRUGO | S_IWUSR,
1342                           show_alarm, clear_intrusion, 4);
1343
1344 static ssize_t show_beep(struct device *dev, struct device_attribute *attr,
1345                 char *buf)
1346 {
1347         int bitnr = to_sensor_dev_attr(attr)->index;
1348         struct it87_data *data = it87_update_device(dev);
1349         return sprintf(buf, "%u\n", (data->beeps >> bitnr) & 1);
1350 }
1351 static ssize_t set_beep(struct device *dev, struct device_attribute *attr,
1352                 const char *buf, size_t count)
1353 {
1354         int bitnr = to_sensor_dev_attr(attr)->index;
1355         struct it87_data *data = dev_get_drvdata(dev);
1356         long val;
1357
1358         if (kstrtol(buf, 10, &val) < 0
1359          || (val != 0 && val != 1))
1360                 return -EINVAL;
1361
1362         mutex_lock(&data->update_lock);
1363         data->beeps = it87_read_value(data, IT87_REG_BEEP_ENABLE);
1364         if (val)
1365                 data->beeps |= (1 << bitnr);
1366         else
1367                 data->beeps &= ~(1 << bitnr);
1368         it87_write_value(data, IT87_REG_BEEP_ENABLE, data->beeps);
1369         mutex_unlock(&data->update_lock);
1370         return count;
1371 }
1372
1373 static SENSOR_DEVICE_ATTR(in0_beep, S_IRUGO | S_IWUSR,
1374                           show_beep, set_beep, 1);
1375 static SENSOR_DEVICE_ATTR(in1_beep, S_IRUGO, show_beep, NULL, 1);
1376 static SENSOR_DEVICE_ATTR(in2_beep, S_IRUGO, show_beep, NULL, 1);
1377 static SENSOR_DEVICE_ATTR(in3_beep, S_IRUGO, show_beep, NULL, 1);
1378 static SENSOR_DEVICE_ATTR(in4_beep, S_IRUGO, show_beep, NULL, 1);
1379 static SENSOR_DEVICE_ATTR(in5_beep, S_IRUGO, show_beep, NULL, 1);
1380 static SENSOR_DEVICE_ATTR(in6_beep, S_IRUGO, show_beep, NULL, 1);
1381 static SENSOR_DEVICE_ATTR(in7_beep, S_IRUGO, show_beep, NULL, 1);
1382 /* fanX_beep writability is set later */
1383 static SENSOR_DEVICE_ATTR(fan1_beep, S_IRUGO, show_beep, set_beep, 0);
1384 static SENSOR_DEVICE_ATTR(fan2_beep, S_IRUGO, show_beep, set_beep, 0);
1385 static SENSOR_DEVICE_ATTR(fan3_beep, S_IRUGO, show_beep, set_beep, 0);
1386 static SENSOR_DEVICE_ATTR(fan4_beep, S_IRUGO, show_beep, set_beep, 0);
1387 static SENSOR_DEVICE_ATTR(fan5_beep, S_IRUGO, show_beep, set_beep, 0);
1388 static SENSOR_DEVICE_ATTR(temp1_beep, S_IRUGO | S_IWUSR,
1389                           show_beep, set_beep, 2);
1390 static SENSOR_DEVICE_ATTR(temp2_beep, S_IRUGO, show_beep, NULL, 2);
1391 static SENSOR_DEVICE_ATTR(temp3_beep, S_IRUGO, show_beep, NULL, 2);
1392
1393 static ssize_t show_vrm_reg(struct device *dev, struct device_attribute *attr,
1394                 char *buf)
1395 {
1396         struct it87_data *data = dev_get_drvdata(dev);
1397         return sprintf(buf, "%u\n", data->vrm);
1398 }
1399 static ssize_t store_vrm_reg(struct device *dev, struct device_attribute *attr,
1400                 const char *buf, size_t count)
1401 {
1402         struct it87_data *data = dev_get_drvdata(dev);
1403         unsigned long val;
1404
1405         if (kstrtoul(buf, 10, &val) < 0)
1406                 return -EINVAL;
1407
1408         data->vrm = val;
1409
1410         return count;
1411 }
1412 static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg);
1413
1414 static ssize_t show_vid_reg(struct device *dev, struct device_attribute *attr,
1415                 char *buf)
1416 {
1417         struct it87_data *data = it87_update_device(dev);
1418         return sprintf(buf, "%ld\n", (long) vid_from_reg(data->vid, data->vrm));
1419 }
1420 static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL);
1421
1422 static ssize_t show_label(struct device *dev, struct device_attribute *attr,
1423                 char *buf)
1424 {
1425         static const char * const labels[] = {
1426                 "+5V",
1427                 "5VSB",
1428                 "Vbat",
1429         };
1430         static const char * const labels_it8721[] = {
1431                 "+3.3V",
1432                 "3VSB",
1433                 "Vbat",
1434         };
1435         struct it87_data *data = dev_get_drvdata(dev);
1436         int nr = to_sensor_dev_attr(attr)->index;
1437
1438         return sprintf(buf, "%s\n", has_12mv_adc(data) ? labels_it8721[nr]
1439                                                        : labels[nr]);
1440 }
1441 static SENSOR_DEVICE_ATTR(in3_label, S_IRUGO, show_label, NULL, 0);
1442 static SENSOR_DEVICE_ATTR(in7_label, S_IRUGO, show_label, NULL, 1);
1443 static SENSOR_DEVICE_ATTR(in8_label, S_IRUGO, show_label, NULL, 2);
1444 /* special AVCC3 IT8603E in9 */
1445 static SENSOR_DEVICE_ATTR(in9_label, S_IRUGO, show_label, NULL, 0);
1446
1447 static ssize_t show_name(struct device *dev, struct device_attribute
1448                          *devattr, char *buf)
1449 {
1450         struct it87_data *data = dev_get_drvdata(dev);
1451         return sprintf(buf, "%s\n", data->name);
1452 }
1453 static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
1454
1455 static struct attribute *it87_attributes_in[10][5] = {
1456 {
1457         &sensor_dev_attr_in0_input.dev_attr.attr,
1458         &sensor_dev_attr_in0_min.dev_attr.attr,
1459         &sensor_dev_attr_in0_max.dev_attr.attr,
1460         &sensor_dev_attr_in0_alarm.dev_attr.attr,
1461         NULL
1462 }, {
1463         &sensor_dev_attr_in1_input.dev_attr.attr,
1464         &sensor_dev_attr_in1_min.dev_attr.attr,
1465         &sensor_dev_attr_in1_max.dev_attr.attr,
1466         &sensor_dev_attr_in1_alarm.dev_attr.attr,
1467         NULL
1468 }, {
1469         &sensor_dev_attr_in2_input.dev_attr.attr,
1470         &sensor_dev_attr_in2_min.dev_attr.attr,
1471         &sensor_dev_attr_in2_max.dev_attr.attr,
1472         &sensor_dev_attr_in2_alarm.dev_attr.attr,
1473         NULL
1474 }, {
1475         &sensor_dev_attr_in3_input.dev_attr.attr,
1476         &sensor_dev_attr_in3_min.dev_attr.attr,
1477         &sensor_dev_attr_in3_max.dev_attr.attr,
1478         &sensor_dev_attr_in3_alarm.dev_attr.attr,
1479         NULL
1480 }, {
1481         &sensor_dev_attr_in4_input.dev_attr.attr,
1482         &sensor_dev_attr_in4_min.dev_attr.attr,
1483         &sensor_dev_attr_in4_max.dev_attr.attr,
1484         &sensor_dev_attr_in4_alarm.dev_attr.attr,
1485         NULL
1486 }, {
1487         &sensor_dev_attr_in5_input.dev_attr.attr,
1488         &sensor_dev_attr_in5_min.dev_attr.attr,
1489         &sensor_dev_attr_in5_max.dev_attr.attr,
1490         &sensor_dev_attr_in5_alarm.dev_attr.attr,
1491         NULL
1492 }, {
1493         &sensor_dev_attr_in6_input.dev_attr.attr,
1494         &sensor_dev_attr_in6_min.dev_attr.attr,
1495         &sensor_dev_attr_in6_max.dev_attr.attr,
1496         &sensor_dev_attr_in6_alarm.dev_attr.attr,
1497         NULL
1498 }, {
1499         &sensor_dev_attr_in7_input.dev_attr.attr,
1500         &sensor_dev_attr_in7_min.dev_attr.attr,
1501         &sensor_dev_attr_in7_max.dev_attr.attr,
1502         &sensor_dev_attr_in7_alarm.dev_attr.attr,
1503         NULL
1504 }, {
1505         &sensor_dev_attr_in8_input.dev_attr.attr,
1506         NULL
1507 }, {
1508         &sensor_dev_attr_in9_input.dev_attr.attr,
1509         NULL
1510 } };
1511
1512 static const struct attribute_group it87_group_in[10] = {
1513         { .attrs = it87_attributes_in[0] },
1514         { .attrs = it87_attributes_in[1] },
1515         { .attrs = it87_attributes_in[2] },
1516         { .attrs = it87_attributes_in[3] },
1517         { .attrs = it87_attributes_in[4] },
1518         { .attrs = it87_attributes_in[5] },
1519         { .attrs = it87_attributes_in[6] },
1520         { .attrs = it87_attributes_in[7] },
1521         { .attrs = it87_attributes_in[8] },
1522         { .attrs = it87_attributes_in[9] },
1523 };
1524
1525 static struct attribute *it87_attributes_temp[3][6] = {
1526 {
1527         &sensor_dev_attr_temp1_input.dev_attr.attr,
1528         &sensor_dev_attr_temp1_max.dev_attr.attr,
1529         &sensor_dev_attr_temp1_min.dev_attr.attr,
1530         &sensor_dev_attr_temp1_type.dev_attr.attr,
1531         &sensor_dev_attr_temp1_alarm.dev_attr.attr,
1532         NULL
1533 } , {
1534         &sensor_dev_attr_temp2_input.dev_attr.attr,
1535         &sensor_dev_attr_temp2_max.dev_attr.attr,
1536         &sensor_dev_attr_temp2_min.dev_attr.attr,
1537         &sensor_dev_attr_temp2_type.dev_attr.attr,
1538         &sensor_dev_attr_temp2_alarm.dev_attr.attr,
1539         NULL
1540 } , {
1541         &sensor_dev_attr_temp3_input.dev_attr.attr,
1542         &sensor_dev_attr_temp3_max.dev_attr.attr,
1543         &sensor_dev_attr_temp3_min.dev_attr.attr,
1544         &sensor_dev_attr_temp3_type.dev_attr.attr,
1545         &sensor_dev_attr_temp3_alarm.dev_attr.attr,
1546         NULL
1547 } };
1548
1549 static const struct attribute_group it87_group_temp[3] = {
1550         { .attrs = it87_attributes_temp[0] },
1551         { .attrs = it87_attributes_temp[1] },
1552         { .attrs = it87_attributes_temp[2] },
1553 };
1554
1555 static struct attribute *it87_attributes_temp_offset[] = {
1556         &sensor_dev_attr_temp1_offset.dev_attr.attr,
1557         &sensor_dev_attr_temp2_offset.dev_attr.attr,
1558         &sensor_dev_attr_temp3_offset.dev_attr.attr,
1559 };
1560
1561 static struct attribute *it87_attributes[] = {
1562         &dev_attr_alarms.attr,
1563         &sensor_dev_attr_intrusion0_alarm.dev_attr.attr,
1564         &dev_attr_name.attr,
1565         NULL
1566 };
1567
1568 static const struct attribute_group it87_group = {
1569         .attrs = it87_attributes,
1570 };
1571
1572 static struct attribute *it87_attributes_in_beep[] = {
1573         &sensor_dev_attr_in0_beep.dev_attr.attr,
1574         &sensor_dev_attr_in1_beep.dev_attr.attr,
1575         &sensor_dev_attr_in2_beep.dev_attr.attr,
1576         &sensor_dev_attr_in3_beep.dev_attr.attr,
1577         &sensor_dev_attr_in4_beep.dev_attr.attr,
1578         &sensor_dev_attr_in5_beep.dev_attr.attr,
1579         &sensor_dev_attr_in6_beep.dev_attr.attr,
1580         &sensor_dev_attr_in7_beep.dev_attr.attr,
1581         NULL,
1582         NULL,
1583 };
1584
1585 static struct attribute *it87_attributes_temp_beep[] = {
1586         &sensor_dev_attr_temp1_beep.dev_attr.attr,
1587         &sensor_dev_attr_temp2_beep.dev_attr.attr,
1588         &sensor_dev_attr_temp3_beep.dev_attr.attr,
1589 };
1590
1591 static struct attribute *it87_attributes_fan[5][3+1] = { {
1592         &sensor_dev_attr_fan1_input.dev_attr.attr,
1593         &sensor_dev_attr_fan1_min.dev_attr.attr,
1594         &sensor_dev_attr_fan1_alarm.dev_attr.attr,
1595         NULL
1596 }, {
1597         &sensor_dev_attr_fan2_input.dev_attr.attr,
1598         &sensor_dev_attr_fan2_min.dev_attr.attr,
1599         &sensor_dev_attr_fan2_alarm.dev_attr.attr,
1600         NULL
1601 }, {
1602         &sensor_dev_attr_fan3_input.dev_attr.attr,
1603         &sensor_dev_attr_fan3_min.dev_attr.attr,
1604         &sensor_dev_attr_fan3_alarm.dev_attr.attr,
1605         NULL
1606 }, {
1607         &sensor_dev_attr_fan4_input.dev_attr.attr,
1608         &sensor_dev_attr_fan4_min.dev_attr.attr,
1609         &sensor_dev_attr_fan4_alarm.dev_attr.attr,
1610         NULL
1611 }, {
1612         &sensor_dev_attr_fan5_input.dev_attr.attr,
1613         &sensor_dev_attr_fan5_min.dev_attr.attr,
1614         &sensor_dev_attr_fan5_alarm.dev_attr.attr,
1615         NULL
1616 } };
1617
1618 static const struct attribute_group it87_group_fan[5] = {
1619         { .attrs = it87_attributes_fan[0] },
1620         { .attrs = it87_attributes_fan[1] },
1621         { .attrs = it87_attributes_fan[2] },
1622         { .attrs = it87_attributes_fan[3] },
1623         { .attrs = it87_attributes_fan[4] },
1624 };
1625
1626 static const struct attribute *it87_attributes_fan_div[] = {
1627         &sensor_dev_attr_fan1_div.dev_attr.attr,
1628         &sensor_dev_attr_fan2_div.dev_attr.attr,
1629         &sensor_dev_attr_fan3_div.dev_attr.attr,
1630 };
1631
1632 static struct attribute *it87_attributes_pwm[3][4+1] = { {
1633         &sensor_dev_attr_pwm1_enable.dev_attr.attr,
1634         &sensor_dev_attr_pwm1.dev_attr.attr,
1635         &dev_attr_pwm1_freq.attr,
1636         &sensor_dev_attr_pwm1_auto_channels_temp.dev_attr.attr,
1637         NULL
1638 }, {
1639         &sensor_dev_attr_pwm2_enable.dev_attr.attr,
1640         &sensor_dev_attr_pwm2.dev_attr.attr,
1641         &dev_attr_pwm2_freq.attr,
1642         &sensor_dev_attr_pwm2_auto_channels_temp.dev_attr.attr,
1643         NULL
1644 }, {
1645         &sensor_dev_attr_pwm3_enable.dev_attr.attr,
1646         &sensor_dev_attr_pwm3.dev_attr.attr,
1647         &dev_attr_pwm3_freq.attr,
1648         &sensor_dev_attr_pwm3_auto_channels_temp.dev_attr.attr,
1649         NULL
1650 } };
1651
1652 static const struct attribute_group it87_group_pwm[3] = {
1653         { .attrs = it87_attributes_pwm[0] },
1654         { .attrs = it87_attributes_pwm[1] },
1655         { .attrs = it87_attributes_pwm[2] },
1656 };
1657
1658 static struct attribute *it87_attributes_autopwm[3][9+1] = { {
1659         &sensor_dev_attr_pwm1_auto_point1_pwm.dev_attr.attr,
1660         &sensor_dev_attr_pwm1_auto_point2_pwm.dev_attr.attr,
1661         &sensor_dev_attr_pwm1_auto_point3_pwm.dev_attr.attr,
1662         &sensor_dev_attr_pwm1_auto_point4_pwm.dev_attr.attr,
1663         &sensor_dev_attr_pwm1_auto_point1_temp.dev_attr.attr,
1664         &sensor_dev_attr_pwm1_auto_point1_temp_hyst.dev_attr.attr,
1665         &sensor_dev_attr_pwm1_auto_point2_temp.dev_attr.attr,
1666         &sensor_dev_attr_pwm1_auto_point3_temp.dev_attr.attr,
1667         &sensor_dev_attr_pwm1_auto_point4_temp.dev_attr.attr,
1668         NULL
1669 }, {
1670         &sensor_dev_attr_pwm2_auto_point1_pwm.dev_attr.attr,
1671         &sensor_dev_attr_pwm2_auto_point2_pwm.dev_attr.attr,
1672         &sensor_dev_attr_pwm2_auto_point3_pwm.dev_attr.attr,
1673         &sensor_dev_attr_pwm2_auto_point4_pwm.dev_attr.attr,
1674         &sensor_dev_attr_pwm2_auto_point1_temp.dev_attr.attr,
1675         &sensor_dev_attr_pwm2_auto_point1_temp_hyst.dev_attr.attr,
1676         &sensor_dev_attr_pwm2_auto_point2_temp.dev_attr.attr,
1677         &sensor_dev_attr_pwm2_auto_point3_temp.dev_attr.attr,
1678         &sensor_dev_attr_pwm2_auto_point4_temp.dev_attr.attr,
1679         NULL
1680 }, {
1681         &sensor_dev_attr_pwm3_auto_point1_pwm.dev_attr.attr,
1682         &sensor_dev_attr_pwm3_auto_point2_pwm.dev_attr.attr,
1683         &sensor_dev_attr_pwm3_auto_point3_pwm.dev_attr.attr,
1684         &sensor_dev_attr_pwm3_auto_point4_pwm.dev_attr.attr,
1685         &sensor_dev_attr_pwm3_auto_point1_temp.dev_attr.attr,
1686         &sensor_dev_attr_pwm3_auto_point1_temp_hyst.dev_attr.attr,
1687         &sensor_dev_attr_pwm3_auto_point2_temp.dev_attr.attr,
1688         &sensor_dev_attr_pwm3_auto_point3_temp.dev_attr.attr,
1689         &sensor_dev_attr_pwm3_auto_point4_temp.dev_attr.attr,
1690         NULL
1691 } };
1692
1693 static const struct attribute_group it87_group_autopwm[3] = {
1694         { .attrs = it87_attributes_autopwm[0] },
1695         { .attrs = it87_attributes_autopwm[1] },
1696         { .attrs = it87_attributes_autopwm[2] },
1697 };
1698
1699 static struct attribute *it87_attributes_fan_beep[] = {
1700         &sensor_dev_attr_fan1_beep.dev_attr.attr,
1701         &sensor_dev_attr_fan2_beep.dev_attr.attr,
1702         &sensor_dev_attr_fan3_beep.dev_attr.attr,
1703         &sensor_dev_attr_fan4_beep.dev_attr.attr,
1704         &sensor_dev_attr_fan5_beep.dev_attr.attr,
1705 };
1706
1707 static struct attribute *it87_attributes_vid[] = {
1708         &dev_attr_vrm.attr,
1709         &dev_attr_cpu0_vid.attr,
1710         NULL
1711 };
1712
1713 static const struct attribute_group it87_group_vid = {
1714         .attrs = it87_attributes_vid,
1715 };
1716
1717 static struct attribute *it87_attributes_label[] = {
1718         &sensor_dev_attr_in3_label.dev_attr.attr,
1719         &sensor_dev_attr_in7_label.dev_attr.attr,
1720         &sensor_dev_attr_in8_label.dev_attr.attr,
1721         &sensor_dev_attr_in9_label.dev_attr.attr,
1722         NULL
1723 };
1724
1725 static const struct attribute_group it87_group_label = {
1726         .attrs = it87_attributes_label,
1727 };
1728
1729 /* SuperIO detection - will change isa_address if a chip is found */
1730 static int __init it87_find(unsigned short *address,
1731         struct it87_sio_data *sio_data)
1732 {
1733         int err;
1734         u16 chip_type;
1735         const char *board_vendor, *board_name;
1736
1737         err = superio_enter();
1738         if (err)
1739                 return err;
1740
1741         err = -ENODEV;
1742         chip_type = force_id ? force_id : superio_inw(DEVID);
1743
1744         switch (chip_type) {
1745         case IT8705F_DEVID:
1746                 sio_data->type = it87;
1747                 break;
1748         case IT8712F_DEVID:
1749                 sio_data->type = it8712;
1750                 break;
1751         case IT8716F_DEVID:
1752         case IT8726F_DEVID:
1753                 sio_data->type = it8716;
1754                 break;
1755         case IT8718F_DEVID:
1756                 sio_data->type = it8718;
1757                 break;
1758         case IT8720F_DEVID:
1759                 sio_data->type = it8720;
1760                 break;
1761         case IT8721F_DEVID:
1762                 sio_data->type = it8721;
1763                 break;
1764         case IT8728F_DEVID:
1765                 sio_data->type = it8728;
1766                 break;
1767         case IT8771E_DEVID:
1768                 sio_data->type = it8771;
1769                 break;
1770         case IT8772E_DEVID:
1771                 sio_data->type = it8772;
1772                 break;
1773         case IT8781F_DEVID:
1774                 sio_data->type = it8781;
1775                 break;
1776         case IT8782F_DEVID:
1777                 sio_data->type = it8782;
1778                 break;
1779         case IT8783E_DEVID:
1780                 sio_data->type = it8783;
1781                 break;
1782         case IT8603E_DEVID:
1783         case IT8623E_DEVID:
1784                 sio_data->type = it8603;
1785                 break;
1786         case 0xffff:    /* No device at all */
1787                 goto exit;
1788         default:
1789                 pr_debug("Unsupported chip (DEVID=0x%x)\n", chip_type);
1790                 goto exit;
1791         }
1792
1793         superio_select(PME);
1794         if (!(superio_inb(IT87_ACT_REG) & 0x01)) {
1795                 pr_info("Device not activated, skipping\n");
1796                 goto exit;
1797         }
1798
1799         *address = superio_inw(IT87_BASE_REG) & ~(IT87_EXTENT - 1);
1800         if (*address == 0) {
1801                 pr_info("Base address not set, skipping\n");
1802                 goto exit;
1803         }
1804
1805         err = 0;
1806         sio_data->revision = superio_inb(DEVREV) & 0x0f;
1807         pr_info("Found IT%04x%c chip at 0x%x, revision %d\n", chip_type,
1808                 chip_type == 0x8771 || chip_type == 0x8772 ||
1809                 chip_type == 0x8603 ? 'E' : 'F', *address,
1810                 sio_data->revision);
1811
1812         /* in8 (Vbat) is always internal */
1813         sio_data->internal = (1 << 2);
1814         /* Only the IT8603E has in9 */
1815         if (sio_data->type != it8603)
1816                 sio_data->skip_in |= (1 << 9);
1817
1818         /* Read GPIO config and VID value from LDN 7 (GPIO) */
1819         if (sio_data->type == it87) {
1820                 /* The IT8705F doesn't have VID pins at all */
1821                 sio_data->skip_vid = 1;
1822
1823                 /* The IT8705F has a different LD number for GPIO */
1824                 superio_select(5);
1825                 sio_data->beep_pin = superio_inb(IT87_SIO_BEEP_PIN_REG) & 0x3f;
1826         } else if (sio_data->type == it8783) {
1827                 int reg25, reg27, reg2a, reg2c, regef;
1828
1829                 sio_data->skip_vid = 1; /* No VID */
1830
1831                 superio_select(GPIO);
1832
1833                 reg25 = superio_inb(IT87_SIO_GPIO1_REG);
1834                 reg27 = superio_inb(IT87_SIO_GPIO3_REG);
1835                 reg2a = superio_inb(IT87_SIO_PINX1_REG);
1836                 reg2c = superio_inb(IT87_SIO_PINX2_REG);
1837                 regef = superio_inb(IT87_SIO_SPI_REG);
1838
1839                 /* Check if fan3 is there or not */
1840                 if ((reg27 & (1 << 0)) || !(reg2c & (1 << 2)))
1841                         sio_data->skip_fan |= (1 << 2);
1842                 if ((reg25 & (1 << 4))
1843                     || (!(reg2a & (1 << 1)) && (regef & (1 << 0))))
1844                         sio_data->skip_pwm |= (1 << 2);
1845
1846                 /* Check if fan2 is there or not */
1847                 if (reg27 & (1 << 7))
1848                         sio_data->skip_fan |= (1 << 1);
1849                 if (reg27 & (1 << 3))
1850                         sio_data->skip_pwm |= (1 << 1);
1851
1852                 /* VIN5 */
1853                 if ((reg27 & (1 << 0)) || (reg2c & (1 << 2)))
1854                         sio_data->skip_in |= (1 << 5); /* No VIN5 */
1855
1856                 /* VIN6 */
1857                 if (reg27 & (1 << 1))
1858                         sio_data->skip_in |= (1 << 6); /* No VIN6 */
1859
1860                 /*
1861                  * VIN7
1862                  * Does not depend on bit 2 of Reg2C, contrary to datasheet.
1863                  */
1864                 if (reg27 & (1 << 2)) {
1865                         /*
1866                          * The data sheet is a bit unclear regarding the
1867                          * internal voltage divider for VCCH5V. It says
1868                          * "This bit enables and switches VIN7 (pin 91) to the
1869                          * internal voltage divider for VCCH5V".
1870                          * This is different to other chips, where the internal
1871                          * voltage divider would connect VIN7 to an internal
1872                          * voltage source. Maybe that is the case here as well.
1873                          *
1874                          * Since we don't know for sure, re-route it if that is
1875                          * not the case, and ask the user to report if the
1876                          * resulting voltage is sane.
1877                          */
1878                         if (!(reg2c & (1 << 1))) {
1879                                 reg2c |= (1 << 1);
1880                                 superio_outb(IT87_SIO_PINX2_REG, reg2c);
1881                                 pr_notice("Routing internal VCCH5V to in7.\n");
1882                         }
1883                         pr_notice("in7 routed to internal voltage divider, with external pin disabled.\n");
1884                         pr_notice("Please report if it displays a reasonable voltage.\n");
1885                 }
1886
1887                 if (reg2c & (1 << 0))
1888                         sio_data->internal |= (1 << 0);
1889                 if (reg2c & (1 << 1))
1890                         sio_data->internal |= (1 << 1);
1891
1892                 sio_data->beep_pin = superio_inb(IT87_SIO_BEEP_PIN_REG) & 0x3f;
1893         } else if (sio_data->type == it8603) {
1894                 int reg27, reg29;
1895
1896                 sio_data->skip_vid = 1; /* No VID */
1897                 superio_select(GPIO);
1898
1899                 reg27 = superio_inb(IT87_SIO_GPIO3_REG);
1900
1901                 /* Check if fan3 is there or not */
1902                 if (reg27 & (1 << 6))
1903                         sio_data->skip_pwm |= (1 << 2);
1904                 if (reg27 & (1 << 7))
1905                         sio_data->skip_fan |= (1 << 2);
1906
1907                 /* Check if fan2 is there or not */
1908                 reg29 = superio_inb(IT87_SIO_GPIO5_REG);
1909                 if (reg29 & (1 << 1))
1910                         sio_data->skip_pwm |= (1 << 1);
1911                 if (reg29 & (1 << 2))
1912                         sio_data->skip_fan |= (1 << 1);
1913
1914                 sio_data->skip_in |= (1 << 5); /* No VIN5 */
1915                 sio_data->skip_in |= (1 << 6); /* No VIN6 */
1916
1917                 /* no fan4 */
1918                 sio_data->skip_pwm |= (1 << 3);
1919                 sio_data->skip_fan |= (1 << 3);
1920
1921                 sio_data->internal |= (1 << 1); /* in7 is VSB */
1922                 sio_data->internal |= (1 << 3); /* in9 is AVCC */
1923
1924                 sio_data->beep_pin = superio_inb(IT87_SIO_BEEP_PIN_REG) & 0x3f;
1925         } else {
1926                 int reg;
1927                 bool uart6;
1928
1929                 superio_select(GPIO);
1930
1931                 reg = superio_inb(IT87_SIO_GPIO3_REG);
1932                 if (sio_data->type == it8721 || sio_data->type == it8728 ||
1933                     sio_data->type == it8771 || sio_data->type == it8772 ||
1934                     sio_data->type == it8781 || sio_data->type == it8782) {
1935                         /*
1936                          * IT8721F/IT8758E, IT8728F, IT8772F, IT8781F, and
1937                          * IT8782F don't have VID pins at all, not sure about
1938                          * the IT8771F.
1939                          */
1940                         sio_data->skip_vid = 1;
1941                 } else {
1942                         /* We need at least 4 VID pins */
1943                         if (reg & 0x0f) {
1944                                 pr_info("VID is disabled (pins used for GPIO)\n");
1945                                 sio_data->skip_vid = 1;
1946                         }
1947                 }
1948
1949                 /* Check if fan3 is there or not */
1950                 if (reg & (1 << 6))
1951                         sio_data->skip_pwm |= (1 << 2);
1952                 if (reg & (1 << 7))
1953                         sio_data->skip_fan |= (1 << 2);
1954
1955                 /* Check if fan2 is there or not */
1956                 reg = superio_inb(IT87_SIO_GPIO5_REG);
1957                 if (reg & (1 << 1))
1958                         sio_data->skip_pwm |= (1 << 1);
1959                 if (reg & (1 << 2))
1960                         sio_data->skip_fan |= (1 << 1);
1961
1962                 if ((sio_data->type == it8718 || sio_data->type == it8720)
1963                  && !(sio_data->skip_vid))
1964                         sio_data->vid_value = superio_inb(IT87_SIO_VID_REG);
1965
1966                 reg = superio_inb(IT87_SIO_PINX2_REG);
1967
1968                 uart6 = sio_data->type == it8782 && (reg & (1 << 2));
1969
1970                 /*
1971                  * The IT8720F has no VIN7 pin, so VCCH should always be
1972                  * routed internally to VIN7 with an internal divider.
1973                  * Curiously, there still is a configuration bit to control
1974                  * this, which means it can be set incorrectly. And even
1975                  * more curiously, many boards out there are improperly
1976                  * configured, even though the IT8720F datasheet claims
1977                  * that the internal routing of VCCH to VIN7 is the default
1978                  * setting. So we force the internal routing in this case.
1979                  *
1980                  * On IT8782F, VIN7 is multiplexed with one of the UART6 pins.
1981                  * If UART6 is enabled, re-route VIN7 to the internal divider
1982                  * if that is not already the case.
1983                  */
1984                 if ((sio_data->type == it8720 || uart6) && !(reg & (1 << 1))) {
1985                         reg |= (1 << 1);
1986                         superio_outb(IT87_SIO_PINX2_REG, reg);
1987                         pr_notice("Routing internal VCCH to in7\n");
1988                 }
1989                 if (reg & (1 << 0))
1990                         sio_data->internal |= (1 << 0);
1991                 if ((reg & (1 << 1)) || sio_data->type == it8721 ||
1992                     sio_data->type == it8728 ||
1993                     sio_data->type == it8771 ||
1994                     sio_data->type == it8772)
1995                         sio_data->internal |= (1 << 1);
1996
1997                 /*
1998                  * On IT8782F, UART6 pins overlap with VIN5, VIN6, and VIN7.
1999                  * While VIN7 can be routed to the internal voltage divider,
2000                  * VIN5 and VIN6 are not available if UART6 is enabled.
2001                  *
2002                  * Also, temp3 is not available if UART6 is enabled and TEMPIN3
2003                  * is the temperature source. Since we can not read the
2004                  * temperature source here, skip_temp is preliminary.
2005                  */
2006                 if (uart6) {
2007                         sio_data->skip_in |= (1 << 5) | (1 << 6);
2008                         sio_data->skip_temp |= (1 << 2);
2009                 }
2010
2011                 sio_data->beep_pin = superio_inb(IT87_SIO_BEEP_PIN_REG) & 0x3f;
2012         }
2013         if (sio_data->beep_pin)
2014                 pr_info("Beeping is supported\n");
2015
2016         /* Disable specific features based on DMI strings */
2017         board_vendor = dmi_get_system_info(DMI_BOARD_VENDOR);
2018         board_name = dmi_get_system_info(DMI_BOARD_NAME);
2019         if (board_vendor && board_name) {
2020                 if (strcmp(board_vendor, "nVIDIA") == 0
2021                  && strcmp(board_name, "FN68PT") == 0) {
2022                         /*
2023                          * On the Shuttle SN68PT, FAN_CTL2 is apparently not
2024                          * connected to a fan, but to something else. One user
2025                          * has reported instant system power-off when changing
2026                          * the PWM2 duty cycle, so we disable it.
2027                          * I use the board name string as the trigger in case
2028                          * the same board is ever used in other systems.
2029                          */
2030                         pr_info("Disabling pwm2 due to hardware constraints\n");
2031                         sio_data->skip_pwm = (1 << 1);
2032                 }
2033         }
2034
2035 exit:
2036         superio_exit();
2037         return err;
2038 }
2039
2040 static void it87_remove_files(struct device *dev)
2041 {
2042         struct it87_data *data = platform_get_drvdata(pdev);
2043         struct it87_sio_data *sio_data = dev_get_platdata(dev);
2044         int i;
2045
2046         sysfs_remove_group(&dev->kobj, &it87_group);
2047         for (i = 0; i < 10; i++) {
2048                 if (sio_data->skip_in & (1 << i))
2049                         continue;
2050                 sysfs_remove_group(&dev->kobj, &it87_group_in[i]);
2051                 if (it87_attributes_in_beep[i])
2052                         sysfs_remove_file(&dev->kobj,
2053                                           it87_attributes_in_beep[i]);
2054         }
2055         for (i = 0; i < 3; i++) {
2056                 if (!(data->has_temp & (1 << i)))
2057                         continue;
2058                 sysfs_remove_group(&dev->kobj, &it87_group_temp[i]);
2059                 if (has_temp_offset(data))
2060                         sysfs_remove_file(&dev->kobj,
2061                                           it87_attributes_temp_offset[i]);
2062                 if (sio_data->beep_pin)
2063                         sysfs_remove_file(&dev->kobj,
2064                                           it87_attributes_temp_beep[i]);
2065         }
2066         for (i = 0; i < 5; i++) {
2067                 if (!(data->has_fan & (1 << i)))
2068                         continue;
2069                 sysfs_remove_group(&dev->kobj, &it87_group_fan[i]);
2070                 if (sio_data->beep_pin)
2071                         sysfs_remove_file(&dev->kobj,
2072                                           it87_attributes_fan_beep[i]);
2073                 if (i < 3 && !has_16bit_fans(data))
2074                         sysfs_remove_file(&dev->kobj,
2075                                           it87_attributes_fan_div[i]);
2076         }
2077         for (i = 0; i < 3; i++) {
2078                 if (sio_data->skip_pwm & (1 << 0))
2079                         continue;
2080                 sysfs_remove_group(&dev->kobj, &it87_group_pwm[i]);
2081                 if (has_old_autopwm(data))
2082                         sysfs_remove_group(&dev->kobj,
2083                                            &it87_group_autopwm[i]);
2084         }
2085         if (!sio_data->skip_vid)
2086                 sysfs_remove_group(&dev->kobj, &it87_group_vid);
2087         sysfs_remove_group(&dev->kobj, &it87_group_label);
2088 }
2089
2090 static int it87_probe(struct platform_device *pdev)
2091 {
2092         struct it87_data *data;
2093         struct resource *res;
2094         struct device *dev = &pdev->dev;
2095         struct it87_sio_data *sio_data = dev_get_platdata(dev);
2096         int err = 0, i;
2097         int enable_pwm_interface;
2098         int fan_beep_need_rw;
2099
2100         res = platform_get_resource(pdev, IORESOURCE_IO, 0);
2101         if (!devm_request_region(&pdev->dev, res->start, IT87_EC_EXTENT,
2102                                  DRVNAME)) {
2103                 dev_err(dev, "Failed to request region 0x%lx-0x%lx\n",
2104                         (unsigned long)res->start,
2105                         (unsigned long)(res->start + IT87_EC_EXTENT - 1));
2106                 return -EBUSY;
2107         }
2108
2109         data = devm_kzalloc(&pdev->dev, sizeof(struct it87_data), GFP_KERNEL);
2110         if (!data)
2111                 return -ENOMEM;
2112
2113         data->addr = res->start;
2114         data->type = sio_data->type;
2115         data->features = it87_devices[sio_data->type].features;
2116         data->peci_mask = it87_devices[sio_data->type].peci_mask;
2117         data->old_peci_mask = it87_devices[sio_data->type].old_peci_mask;
2118         data->name = it87_devices[sio_data->type].name;
2119         /*
2120          * IT8705F Datasheet 0.4.1, 3h == Version G.
2121          * IT8712F Datasheet 0.9.1, section 8.3.5 indicates 8h == Version J.
2122          * These are the first revisions with 16-bit tachometer support.
2123          */
2124         switch (data->type) {
2125         case it87:
2126                 if (sio_data->revision >= 0x03) {
2127                         data->features &= ~FEAT_OLD_AUTOPWM;
2128                         data->features |= FEAT_16BIT_FANS;
2129                 }
2130                 break;
2131         case it8712:
2132                 if (sio_data->revision >= 0x08) {
2133                         data->features &= ~FEAT_OLD_AUTOPWM;
2134                         data->features |= FEAT_16BIT_FANS;
2135                 }
2136                 break;
2137         default:
2138                 break;
2139         }
2140
2141         /* Now, we do the remaining detection. */
2142         if ((it87_read_value(data, IT87_REG_CONFIG) & 0x80)
2143          || it87_read_value(data, IT87_REG_CHIPID) != 0x90)
2144                 return -ENODEV;
2145
2146         platform_set_drvdata(pdev, data);
2147
2148         mutex_init(&data->update_lock);
2149
2150         /* Check PWM configuration */
2151         enable_pwm_interface = it87_check_pwm(dev);
2152
2153         /* Starting with IT8721F, we handle scaling of internal voltages */
2154         if (has_12mv_adc(data)) {
2155                 if (sio_data->internal & (1 << 0))
2156                         data->in_scaled |= (1 << 3);    /* in3 is AVCC */
2157                 if (sio_data->internal & (1 << 1))
2158                         data->in_scaled |= (1 << 7);    /* in7 is VSB */
2159                 if (sio_data->internal & (1 << 2))
2160                         data->in_scaled |= (1 << 8);    /* in8 is Vbat */
2161                 if (sio_data->internal & (1 << 3))
2162                         data->in_scaled |= (1 << 9);    /* in9 is AVCC */
2163         } else if (sio_data->type == it8781 || sio_data->type == it8782 ||
2164                    sio_data->type == it8783) {
2165                 if (sio_data->internal & (1 << 0))
2166                         data->in_scaled |= (1 << 3);    /* in3 is VCC5V */
2167                 if (sio_data->internal & (1 << 1))
2168                         data->in_scaled |= (1 << 7);    /* in7 is VCCH5V */
2169         }
2170
2171         data->has_temp = 0x07;
2172         if (sio_data->skip_temp & (1 << 2)) {
2173                 if (sio_data->type == it8782
2174                     && !(it87_read_value(data, IT87_REG_TEMP_EXTRA) & 0x80))
2175                         data->has_temp &= ~(1 << 2);
2176         }
2177
2178         /* Initialize the IT87 chip */
2179         it87_init_device(pdev);
2180
2181         /* Register sysfs hooks */
2182         err = sysfs_create_group(&dev->kobj, &it87_group);
2183         if (err)
2184                 return err;
2185
2186         for (i = 0; i < 10; i++) {
2187                 if (sio_data->skip_in & (1 << i))
2188                         continue;
2189                 err = sysfs_create_group(&dev->kobj, &it87_group_in[i]);
2190                 if (err)
2191                         goto error;
2192                 if (sio_data->beep_pin && it87_attributes_in_beep[i]) {
2193                         err = sysfs_create_file(&dev->kobj,
2194                                                 it87_attributes_in_beep[i]);
2195                         if (err)
2196                                 goto error;
2197                 }
2198         }
2199
2200         for (i = 0; i < 3; i++) {
2201                 if (!(data->has_temp & (1 << i)))
2202                         continue;
2203                 err = sysfs_create_group(&dev->kobj, &it87_group_temp[i]);
2204                 if (err)
2205                         goto error;
2206                 if (has_temp_offset(data)) {
2207                         err = sysfs_create_file(&dev->kobj,
2208                                                 it87_attributes_temp_offset[i]);
2209                         if (err)
2210                                 goto error;
2211                 }
2212                 if (sio_data->beep_pin) {
2213                         err = sysfs_create_file(&dev->kobj,
2214                                                 it87_attributes_temp_beep[i]);
2215                         if (err)
2216                                 goto error;
2217                 }
2218         }
2219
2220         /* Do not create fan files for disabled fans */
2221         fan_beep_need_rw = 1;
2222         for (i = 0; i < 5; i++) {
2223                 if (!(data->has_fan & (1 << i)))
2224                         continue;
2225                 err = sysfs_create_group(&dev->kobj, &it87_group_fan[i]);
2226                 if (err)
2227                         goto error;
2228
2229                 if (i < 3 && !has_16bit_fans(data)) {
2230                         err = sysfs_create_file(&dev->kobj,
2231                                                 it87_attributes_fan_div[i]);
2232                         if (err)
2233                                 goto error;
2234                 }
2235
2236                 if (sio_data->beep_pin) {
2237                         err = sysfs_create_file(&dev->kobj,
2238                                                 it87_attributes_fan_beep[i]);
2239                         if (err)
2240                                 goto error;
2241                         if (!fan_beep_need_rw)
2242                                 continue;
2243
2244                         /*
2245                          * As we have a single beep enable bit for all fans,
2246                          * only the first enabled fan has a writable attribute
2247                          * for it.
2248                          */
2249                         if (sysfs_chmod_file(&dev->kobj,
2250                                              it87_attributes_fan_beep[i],
2251                                              S_IRUGO | S_IWUSR))
2252                                 dev_dbg(dev, "chmod +w fan%d_beep failed\n",
2253                                         i + 1);
2254                         fan_beep_need_rw = 0;
2255                 }
2256         }
2257
2258         if (enable_pwm_interface) {
2259                 for (i = 0; i < 3; i++) {
2260                         if (sio_data->skip_pwm & (1 << i))
2261                                 continue;
2262                         err = sysfs_create_group(&dev->kobj,
2263                                                  &it87_group_pwm[i]);
2264                         if (err)
2265                                 goto error;
2266
2267                         if (!has_old_autopwm(data))
2268                                 continue;
2269                         err = sysfs_create_group(&dev->kobj,
2270                                                  &it87_group_autopwm[i]);
2271                         if (err)
2272                                 goto error;
2273                 }
2274         }
2275
2276         if (!sio_data->skip_vid) {
2277                 data->vrm = vid_which_vrm();
2278                 /* VID reading from Super-I/O config space if available */
2279                 data->vid = sio_data->vid_value;
2280                 err = sysfs_create_group(&dev->kobj, &it87_group_vid);
2281                 if (err)
2282                         goto error;
2283         }
2284
2285         /* Export labels for internal sensors */
2286         for (i = 0; i < 4; i++) {
2287                 if (!(sio_data->internal & (1 << i)))
2288                         continue;
2289                 err = sysfs_create_file(&dev->kobj,
2290                                         it87_attributes_label[i]);
2291                 if (err)
2292                         goto error;
2293         }
2294
2295         data->hwmon_dev = hwmon_device_register(dev);
2296         if (IS_ERR(data->hwmon_dev)) {
2297                 err = PTR_ERR(data->hwmon_dev);
2298                 goto error;
2299         }
2300
2301         return 0;
2302
2303 error:
2304         it87_remove_files(dev);
2305         return err;
2306 }
2307
2308 static int it87_remove(struct platform_device *pdev)
2309 {
2310         struct it87_data *data = platform_get_drvdata(pdev);
2311
2312         hwmon_device_unregister(data->hwmon_dev);
2313         it87_remove_files(&pdev->dev);
2314
2315         return 0;
2316 }
2317
2318 /*
2319  * Must be called with data->update_lock held, except during initialization.
2320  * We ignore the IT87 BUSY flag at this moment - it could lead to deadlocks,
2321  * would slow down the IT87 access and should not be necessary.
2322  */
2323 static int it87_read_value(struct it87_data *data, u8 reg)
2324 {
2325         outb_p(reg, data->addr + IT87_ADDR_REG_OFFSET);
2326         return inb_p(data->addr + IT87_DATA_REG_OFFSET);
2327 }
2328
2329 /*
2330  * Must be called with data->update_lock held, except during initialization.
2331  * We ignore the IT87 BUSY flag at this moment - it could lead to deadlocks,
2332  * would slow down the IT87 access and should not be necessary.
2333  */
2334 static void it87_write_value(struct it87_data *data, u8 reg, u8 value)
2335 {
2336         outb_p(reg, data->addr + IT87_ADDR_REG_OFFSET);
2337         outb_p(value, data->addr + IT87_DATA_REG_OFFSET);
2338 }
2339
2340 /* Return 1 if and only if the PWM interface is safe to use */
2341 static int it87_check_pwm(struct device *dev)
2342 {
2343         struct it87_data *data = dev_get_drvdata(dev);
2344         /*
2345          * Some BIOSes fail to correctly configure the IT87 fans. All fans off
2346          * and polarity set to active low is sign that this is the case so we
2347          * disable pwm control to protect the user.
2348          */
2349         int tmp = it87_read_value(data, IT87_REG_FAN_CTL);
2350         if ((tmp & 0x87) == 0) {
2351                 if (fix_pwm_polarity) {
2352                         /*
2353                          * The user asks us to attempt a chip reconfiguration.
2354                          * This means switching to active high polarity and
2355                          * inverting all fan speed values.
2356                          */
2357                         int i;
2358                         u8 pwm[3];
2359
2360                         for (i = 0; i < 3; i++)
2361                                 pwm[i] = it87_read_value(data,
2362                                                          IT87_REG_PWM(i));
2363
2364                         /*
2365                          * If any fan is in automatic pwm mode, the polarity
2366                          * might be correct, as suspicious as it seems, so we
2367                          * better don't change anything (but still disable the
2368                          * PWM interface).
2369                          */
2370                         if (!((pwm[0] | pwm[1] | pwm[2]) & 0x80)) {
2371                                 dev_info(dev,
2372                                          "Reconfiguring PWM to active high polarity\n");
2373                                 it87_write_value(data, IT87_REG_FAN_CTL,
2374                                                  tmp | 0x87);
2375                                 for (i = 0; i < 3; i++)
2376                                         it87_write_value(data,
2377                                                          IT87_REG_PWM(i),
2378                                                          0x7f & ~pwm[i]);
2379                                 return 1;
2380                         }
2381
2382                         dev_info(dev,
2383                                  "PWM configuration is too broken to be fixed\n");
2384                 }
2385
2386                 dev_info(dev,
2387                          "Detected broken BIOS defaults, disabling PWM interface\n");
2388                 return 0;
2389         } else if (fix_pwm_polarity) {
2390                 dev_info(dev,
2391                          "PWM configuration looks sane, won't touch\n");
2392         }
2393
2394         return 1;
2395 }
2396
2397 /* Called when we have found a new IT87. */
2398 static void it87_init_device(struct platform_device *pdev)
2399 {
2400         struct it87_sio_data *sio_data = dev_get_platdata(&pdev->dev);
2401         struct it87_data *data = platform_get_drvdata(pdev);
2402         int tmp, i;
2403         u8 mask;
2404
2405         /*
2406          * For each PWM channel:
2407          * - If it is in automatic mode, setting to manual mode should set
2408          *   the fan to full speed by default.
2409          * - If it is in manual mode, we need a mapping to temperature
2410          *   channels to use when later setting to automatic mode later.
2411          *   Use a 1:1 mapping by default (we are clueless.)
2412          * In both cases, the value can (and should) be changed by the user
2413          * prior to switching to a different mode.
2414          * Note that this is no longer needed for the IT8721F and later, as
2415          * these have separate registers for the temperature mapping and the
2416          * manual duty cycle.
2417          */
2418         for (i = 0; i < 3; i++) {
2419                 data->pwm_temp_map[i] = i;
2420                 data->pwm_duty[i] = 0x7f;       /* Full speed */
2421                 data->auto_pwm[i][3] = 0x7f;    /* Full speed, hard-coded */
2422         }
2423
2424         /*
2425          * Some chips seem to have default value 0xff for all limit
2426          * registers. For low voltage limits it makes no sense and triggers
2427          * alarms, so change to 0 instead. For high temperature limits, it
2428          * means -1 degree C, which surprisingly doesn't trigger an alarm,
2429          * but is still confusing, so change to 127 degrees C.
2430          */
2431         for (i = 0; i < 8; i++) {
2432                 tmp = it87_read_value(data, IT87_REG_VIN_MIN(i));
2433                 if (tmp == 0xff)
2434                         it87_write_value(data, IT87_REG_VIN_MIN(i), 0);
2435         }
2436         for (i = 0; i < 3; i++) {
2437                 tmp = it87_read_value(data, IT87_REG_TEMP_HIGH(i));
2438                 if (tmp == 0xff)
2439                         it87_write_value(data, IT87_REG_TEMP_HIGH(i), 127);
2440         }
2441
2442         /*
2443          * Temperature channels are not forcibly enabled, as they can be
2444          * set to two different sensor types and we can't guess which one
2445          * is correct for a given system. These channels can be enabled at
2446          * run-time through the temp{1-3}_type sysfs accessors if needed.
2447          */
2448
2449         /* Check if voltage monitors are reset manually or by some reason */
2450         tmp = it87_read_value(data, IT87_REG_VIN_ENABLE);
2451         if ((tmp & 0xff) == 0) {
2452                 /* Enable all voltage monitors */
2453                 it87_write_value(data, IT87_REG_VIN_ENABLE, 0xff);
2454         }
2455
2456         /* Check if tachometers are reset manually or by some reason */
2457         mask = 0x70 & ~(sio_data->skip_fan << 4);
2458         data->fan_main_ctrl = it87_read_value(data, IT87_REG_FAN_MAIN_CTRL);
2459         if ((data->fan_main_ctrl & mask) == 0) {
2460                 /* Enable all fan tachometers */
2461                 data->fan_main_ctrl |= mask;
2462                 it87_write_value(data, IT87_REG_FAN_MAIN_CTRL,
2463                                  data->fan_main_ctrl);
2464         }
2465         data->has_fan = (data->fan_main_ctrl >> 4) & 0x07;
2466
2467         /* Set tachometers to 16-bit mode if needed, IT8603E (and IT8728F?)
2468          * has it by default */
2469         if (has_16bit_fans(data) && data->type != it8603) {
2470                 tmp = it87_read_value(data, IT87_REG_FAN_16BIT);
2471                 if (~tmp & 0x07 & data->has_fan) {
2472                         dev_dbg(&pdev->dev,
2473                                 "Setting fan1-3 to 16-bit mode\n");
2474                         it87_write_value(data, IT87_REG_FAN_16BIT,
2475                                          tmp | 0x07);
2476                 }
2477                 /*
2478                  * IT8705F, IT8781F, IT8782F, and IT8783E/F only support
2479                  * three fans.
2480                  */
2481                 if (data->type != it87 && data->type != it8781 &&
2482                     data->type != it8782 && data->type != it8783) {
2483                         if (tmp & (1 << 4))
2484                                 data->has_fan |= (1 << 3); /* fan4 enabled */
2485                         if (tmp & (1 << 5))
2486                                 data->has_fan |= (1 << 4); /* fan5 enabled */
2487                 }
2488         }
2489
2490         /* Fan input pins may be used for alternative functions */
2491         data->has_fan &= ~sio_data->skip_fan;
2492
2493         /* Start monitoring */
2494         it87_write_value(data, IT87_REG_CONFIG,
2495                          (it87_read_value(data, IT87_REG_CONFIG) & 0x3e)
2496                          | (update_vbat ? 0x41 : 0x01));
2497 }
2498
2499 static void it87_update_pwm_ctrl(struct it87_data *data, int nr)
2500 {
2501         data->pwm_ctrl[nr] = it87_read_value(data, IT87_REG_PWM(nr));
2502         if (has_newer_autopwm(data)) {
2503                 data->pwm_temp_map[nr] = data->pwm_ctrl[nr] & 0x03;
2504                 data->pwm_duty[nr] = it87_read_value(data,
2505                                                      IT87_REG_PWM_DUTY(nr));
2506         } else {
2507                 if (data->pwm_ctrl[nr] & 0x80)  /* Automatic mode */
2508                         data->pwm_temp_map[nr] = data->pwm_ctrl[nr] & 0x03;
2509                 else                            /* Manual mode */
2510                         data->pwm_duty[nr] = data->pwm_ctrl[nr] & 0x7f;
2511         }
2512
2513         if (has_old_autopwm(data)) {
2514                 int i;
2515
2516                 for (i = 0; i < 5 ; i++)
2517                         data->auto_temp[nr][i] = it87_read_value(data,
2518                                                 IT87_REG_AUTO_TEMP(nr, i));
2519                 for (i = 0; i < 3 ; i++)
2520                         data->auto_pwm[nr][i] = it87_read_value(data,
2521                                                 IT87_REG_AUTO_PWM(nr, i));
2522         }
2523 }
2524
2525 static struct it87_data *it87_update_device(struct device *dev)
2526 {
2527         struct it87_data *data = dev_get_drvdata(dev);
2528         int i;
2529
2530         mutex_lock(&data->update_lock);
2531
2532         if (time_after(jiffies, data->last_updated + HZ + HZ / 2)
2533             || !data->valid) {
2534                 if (update_vbat) {
2535                         /*
2536                          * Cleared after each update, so reenable.  Value
2537                          * returned by this read will be previous value
2538                          */
2539                         it87_write_value(data, IT87_REG_CONFIG,
2540                                 it87_read_value(data, IT87_REG_CONFIG) | 0x40);
2541                 }
2542                 for (i = 0; i <= 7; i++) {
2543                         data->in[i][0] =
2544                                 it87_read_value(data, IT87_REG_VIN(i));
2545                         data->in[i][1] =
2546                                 it87_read_value(data, IT87_REG_VIN_MIN(i));
2547                         data->in[i][2] =
2548                                 it87_read_value(data, IT87_REG_VIN_MAX(i));
2549                 }
2550                 /* in8 (battery) has no limit registers */
2551                 data->in[8][0] = it87_read_value(data, IT87_REG_VIN(8));
2552                 if (data->type == it8603)
2553                         data->in[9][0] = it87_read_value(data, 0x2f);
2554
2555                 for (i = 0; i < 5; i++) {
2556                         /* Skip disabled fans */
2557                         if (!(data->has_fan & (1 << i)))
2558                                 continue;
2559
2560                         data->fan[i][1] =
2561                                 it87_read_value(data, IT87_REG_FAN_MIN[i]);
2562                         data->fan[i][0] = it87_read_value(data,
2563                                        IT87_REG_FAN[i]);
2564                         /* Add high byte if in 16-bit mode */
2565                         if (has_16bit_fans(data)) {
2566                                 data->fan[i][0] |= it87_read_value(data,
2567                                                 IT87_REG_FANX[i]) << 8;
2568                                 data->fan[i][1] |= it87_read_value(data,
2569                                                 IT87_REG_FANX_MIN[i]) << 8;
2570                         }
2571                 }
2572                 for (i = 0; i < 3; i++) {
2573                         if (!(data->has_temp & (1 << i)))
2574                                 continue;
2575                         data->temp[i][0] =
2576                                 it87_read_value(data, IT87_REG_TEMP(i));
2577                         data->temp[i][1] =
2578                                 it87_read_value(data, IT87_REG_TEMP_LOW(i));
2579                         data->temp[i][2] =
2580                                 it87_read_value(data, IT87_REG_TEMP_HIGH(i));
2581                         if (has_temp_offset(data))
2582                                 data->temp[i][3] =
2583                                   it87_read_value(data,
2584                                                   IT87_REG_TEMP_OFFSET[i]);
2585                 }
2586
2587                 /* Newer chips don't have clock dividers */
2588                 if ((data->has_fan & 0x07) && !has_16bit_fans(data)) {
2589                         i = it87_read_value(data, IT87_REG_FAN_DIV);
2590                         data->fan_div[0] = i & 0x07;
2591                         data->fan_div[1] = (i >> 3) & 0x07;
2592                         data->fan_div[2] = (i & 0x40) ? 3 : 1;
2593                 }
2594
2595                 data->alarms =
2596                         it87_read_value(data, IT87_REG_ALARM1) |
2597                         (it87_read_value(data, IT87_REG_ALARM2) << 8) |
2598                         (it87_read_value(data, IT87_REG_ALARM3) << 16);
2599                 data->beeps = it87_read_value(data, IT87_REG_BEEP_ENABLE);
2600
2601                 data->fan_main_ctrl = it87_read_value(data,
2602                                 IT87_REG_FAN_MAIN_CTRL);
2603                 data->fan_ctl = it87_read_value(data, IT87_REG_FAN_CTL);
2604                 for (i = 0; i < 3; i++)
2605                         it87_update_pwm_ctrl(data, i);
2606
2607                 data->sensor = it87_read_value(data, IT87_REG_TEMP_ENABLE);
2608                 data->extra = it87_read_value(data, IT87_REG_TEMP_EXTRA);
2609                 /*
2610                  * The IT8705F does not have VID capability.
2611                  * The IT8718F and later don't use IT87_REG_VID for the
2612                  * same purpose.
2613                  */
2614                 if (data->type == it8712 || data->type == it8716) {
2615                         data->vid = it87_read_value(data, IT87_REG_VID);
2616                         /*
2617                          * The older IT8712F revisions had only 5 VID pins,
2618                          * but we assume it is always safe to read 6 bits.
2619                          */
2620                         data->vid &= 0x3f;
2621                 }
2622                 data->last_updated = jiffies;
2623                 data->valid = 1;
2624         }
2625
2626         mutex_unlock(&data->update_lock);
2627
2628         return data;
2629 }
2630
2631 static int __init it87_device_add(unsigned short address,
2632                                   const struct it87_sio_data *sio_data)
2633 {
2634         struct resource res = {
2635                 .start  = address + IT87_EC_OFFSET,
2636                 .end    = address + IT87_EC_OFFSET + IT87_EC_EXTENT - 1,
2637                 .name   = DRVNAME,
2638                 .flags  = IORESOURCE_IO,
2639         };
2640         int err;
2641
2642         err = acpi_check_resource_conflict(&res);
2643         if (err)
2644                 goto exit;
2645
2646         pdev = platform_device_alloc(DRVNAME, address);
2647         if (!pdev) {
2648                 err = -ENOMEM;
2649                 pr_err("Device allocation failed\n");
2650                 goto exit;
2651         }
2652
2653         err = platform_device_add_resources(pdev, &res, 1);
2654         if (err) {
2655                 pr_err("Device resource addition failed (%d)\n", err);
2656                 goto exit_device_put;
2657         }
2658
2659         err = platform_device_add_data(pdev, sio_data,
2660                                        sizeof(struct it87_sio_data));
2661         if (err) {
2662                 pr_err("Platform data allocation failed\n");
2663                 goto exit_device_put;
2664         }
2665
2666         err = platform_device_add(pdev);
2667         if (err) {
2668                 pr_err("Device addition failed (%d)\n", err);
2669                 goto exit_device_put;
2670         }
2671
2672         return 0;
2673
2674 exit_device_put:
2675         platform_device_put(pdev);
2676 exit:
2677         return err;
2678 }
2679
2680 static int __init sm_it87_init(void)
2681 {
2682         int err;
2683         unsigned short isa_address = 0;
2684         struct it87_sio_data sio_data;
2685
2686         memset(&sio_data, 0, sizeof(struct it87_sio_data));
2687         err = it87_find(&isa_address, &sio_data);
2688         if (err)
2689                 return err;
2690         err = platform_driver_register(&it87_driver);
2691         if (err)
2692                 return err;
2693
2694         err = it87_device_add(isa_address, &sio_data);
2695         if (err) {
2696                 platform_driver_unregister(&it87_driver);
2697                 return err;
2698         }
2699
2700         return 0;
2701 }
2702
2703 static void __exit sm_it87_exit(void)
2704 {
2705         platform_device_unregister(pdev);
2706         platform_driver_unregister(&it87_driver);
2707 }
2708
2709
2710 MODULE_AUTHOR("Chris Gauthron, Jean Delvare <jdelvare@suse.de>");
2711 MODULE_DESCRIPTION("IT8705F/IT871xF/IT872xF hardware monitoring driver");
2712 module_param(update_vbat, bool, 0);
2713 MODULE_PARM_DESC(update_vbat, "Update vbat if set else return powerup value");
2714 module_param(fix_pwm_polarity, bool, 0);
2715 MODULE_PARM_DESC(fix_pwm_polarity,
2716                  "Force PWM polarity to active high (DANGEROUS)");
2717 MODULE_LICENSE("GPL");
2718
2719 module_init(sm_it87_init);
2720 module_exit(sm_it87_exit);