drivers/hwmon/w83792d.c

   1 /*
   2  * w83792d.c - Part of lm_sensors, Linux kernel modules for hardware
   3  *             monitoring
   4  * Copyright (C) 2004, 2005 Winbond Electronics Corp.
   5  *                          Chunhao Huang <DZShen@Winbond.com.tw>,
   6  *                          Rudolf Marek <r.marek@assembler.cz>
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  21  *
  22  * Note:
  23  * 1. This driver is only for 2.6 kernel, 2.4 kernel need a different driver.
  24  * 2. This driver is only for Winbond W83792D C version device, there
  25  *     are also some motherboards with B version W83792D device. The
  26  *     calculation method to in6-in7(measured value, limits) is a little
  27  *     different between C and B version. C or B version can be identified
  28  *     by CR[0x49h].
  29  */
  30
  31 /*
  32  * Supports following chips:
  33  *
  34  * Chip #vin    #fanin  #pwm    #temp   wchipid vendid  i2c     ISA
  35  * w83792d      9       7       7       3       0x7a    0x5ca3  yes     no
  36  */
  37
  38 #include <linux/module.h>
  39 #include <linux/init.h>
  40 #include <linux/slab.h>
  41 #include <linux/i2c.h>
  42 #include <linux/hwmon.h>
  43 #include <linux/hwmon-sysfs.h>
  44 #include <linux/err.h>
  45 #include <linux/mutex.h>
  46 #include <linux/sysfs.h>
  47
  48 /* Addresses to scan */
  49 static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, 0x2f,
  50                                                 I2C_CLIENT_END };
  51
  52 /* Insmod parameters */
  53
  54 static unsigned short force_subclients[4];
  55 module_param_array(force_subclients, short, NULL, 0);
  56 MODULE_PARM_DESC(force_subclients, "List of subclient addresses: "
  57                         "{bus, clientaddr, subclientaddr1, subclientaddr2}");
  58
  59 static bool init;
  60 module_param(init, bool, 0);
  61 MODULE_PARM_DESC(init, "Set to one to force chip initialization");
  62
  63 /* The W83792D registers */
  64 static const u8 W83792D_REG_IN[9] = {
  65         0x20,   /* Vcore A in DataSheet */
  66         0x21,   /* Vcore B in DataSheet */
  67         0x22,   /* VIN0 in DataSheet */
  68         0x23,   /* VIN1 in DataSheet */
  69         0x24,   /* VIN2 in DataSheet */
  70         0x25,   /* VIN3 in DataSheet */
  71         0x26,   /* 5VCC in DataSheet */
  72         0xB0,   /* 5VSB in DataSheet */
  73         0xB1    /* VBAT in DataSheet */
  74 };
  75 #define W83792D_REG_LOW_BITS1 0x3E  /* Low Bits I in DataSheet */
  76 #define W83792D_REG_LOW_BITS2 0x3F  /* Low Bits II in DataSheet */
  77 static const u8 W83792D_REG_IN_MAX[9] = {
  78         0x2B,   /* Vcore A High Limit in DataSheet */
  79         0x2D,   /* Vcore B High Limit in DataSheet */
  80         0x2F,   /* VIN0 High Limit in DataSheet */
  81         0x31,   /* VIN1 High Limit in DataSheet */
  82         0x33,   /* VIN2 High Limit in DataSheet */
  83         0x35,   /* VIN3 High Limit in DataSheet */
  84         0x37,   /* 5VCC High Limit in DataSheet */
  85         0xB4,   /* 5VSB High Limit in DataSheet */
  86         0xB6    /* VBAT High Limit in DataSheet */
  87 };
  88 static const u8 W83792D_REG_IN_MIN[9] = {
  89         0x2C,   /* Vcore A Low Limit in DataSheet */
  90         0x2E,   /* Vcore B Low Limit in DataSheet */
  91         0x30,   /* VIN0 Low Limit in DataSheet */
  92         0x32,   /* VIN1 Low Limit in DataSheet */
  93         0x34,   /* VIN2 Low Limit in DataSheet */
  94         0x36,   /* VIN3 Low Limit in DataSheet */
  95         0x38,   /* 5VCC Low Limit in DataSheet */
  96         0xB5,   /* 5VSB Low Limit in DataSheet */
  97         0xB7    /* VBAT Low Limit in DataSheet */
  98 };
  99 static const u8 W83792D_REG_FAN[7] = {
 100         0x28,   /* FAN 1 Count in DataSheet */
 101         0x29,   /* FAN 2 Count in DataSheet */
 102         0x2A,   /* FAN 3 Count in DataSheet */
 103         0xB8,   /* FAN 4 Count in DataSheet */
 104         0xB9,   /* FAN 5 Count in DataSheet */
 105         0xBA,   /* FAN 6 Count in DataSheet */
 106         0xBE    /* FAN 7 Count in DataSheet */
 107 };
 108 static const u8 W83792D_REG_FAN_MIN[7] = {
 109         0x3B,   /* FAN 1 Count Low Limit in DataSheet */
 110         0x3C,   /* FAN 2 Count Low Limit in DataSheet */
 111         0x3D,   /* FAN 3 Count Low Limit in DataSheet */
 112         0xBB,   /* FAN 4 Count Low Limit in DataSheet */
 113         0xBC,   /* FAN 5 Count Low Limit in DataSheet */
 114         0xBD,   /* FAN 6 Count Low Limit in DataSheet */
 115         0xBF    /* FAN 7 Count Low Limit in DataSheet */
 116 };
 117 #define W83792D_REG_FAN_CFG 0x84        /* FAN Configuration in DataSheet */
 118 static const u8 W83792D_REG_FAN_DIV[4] = {
 119         0x47,   /* contains FAN2 and FAN1 Divisor */
 120         0x5B,   /* contains FAN4 and FAN3 Divisor */
 121         0x5C,   /* contains FAN6 and FAN5 Divisor */
 122         0x9E    /* contains FAN7 Divisor. */
 123 };
 124 static const u8 W83792D_REG_PWM[7] = {
 125         0x81,   /* FAN 1 Duty Cycle, be used to control */
 126         0x83,   /* FAN 2 Duty Cycle, be used to control */
 127         0x94,   /* FAN 3 Duty Cycle, be used to control */
 128         0xA3,   /* FAN 4 Duty Cycle, be used to control */
 129         0xA4,   /* FAN 5 Duty Cycle, be used to control */
 130         0xA5,   /* FAN 6 Duty Cycle, be used to control */
 131         0xA6    /* FAN 7 Duty Cycle, be used to control */
 132 };
 133 #define W83792D_REG_BANK                0x4E
 134 #define W83792D_REG_TEMP2_CONFIG        0xC2
 135 #define W83792D_REG_TEMP3_CONFIG        0xCA
 136
 137 static const u8 W83792D_REG_TEMP1[3] = {
 138         0x27,   /* TEMP 1 in DataSheet */
 139         0x39,   /* TEMP 1 Over in DataSheet */
 140         0x3A,   /* TEMP 1 Hyst in DataSheet */
 141 };
 142
 143 static const u8 W83792D_REG_TEMP_ADD[2][6] = {
 144         { 0xC0,         /* TEMP 2 in DataSheet */
 145           0xC1,         /* TEMP 2(0.5 deg) in DataSheet */
 146           0xC5,         /* TEMP 2 Over High part in DataSheet */
 147           0xC6,         /* TEMP 2 Over Low part in DataSheet */
 148           0xC3,         /* TEMP 2 Thyst High part in DataSheet */
 149           0xC4 },       /* TEMP 2 Thyst Low part in DataSheet */
 150         { 0xC8,         /* TEMP 3 in DataSheet */
 151           0xC9,         /* TEMP 3(0.5 deg) in DataSheet */
 152           0xCD,         /* TEMP 3 Over High part in DataSheet */
 153           0xCE,         /* TEMP 3 Over Low part in DataSheet */
 154           0xCB,         /* TEMP 3 Thyst High part in DataSheet */
 155           0xCC }        /* TEMP 3 Thyst Low part in DataSheet */
 156 };
 157
 158 static const u8 W83792D_REG_THERMAL[3] = {
 159         0x85,   /* SmartFanI: Fan1 target value */
 160         0x86,   /* SmartFanI: Fan2 target value */
 161         0x96    /* SmartFanI: Fan3 target value */
 162 };
 163
 164 static const u8 W83792D_REG_TOLERANCE[3] = {
 165         0x87,   /* (bit3-0)SmartFan Fan1 tolerance */
 166         0x87,   /* (bit7-4)SmartFan Fan2 tolerance */
 167         0x97    /* (bit3-0)SmartFan Fan3 tolerance */
 168 };
 169
 170 static const u8 W83792D_REG_POINTS[3][4] = {
 171         { 0x85,         /* SmartFanII: Fan1 temp point 1 */
 172           0xE3,         /* SmartFanII: Fan1 temp point 2 */
 173           0xE4,         /* SmartFanII: Fan1 temp point 3 */
 174           0xE5 },       /* SmartFanII: Fan1 temp point 4 */
 175         { 0x86,         /* SmartFanII: Fan2 temp point 1 */
 176           0xE6,         /* SmartFanII: Fan2 temp point 2 */
 177           0xE7,         /* SmartFanII: Fan2 temp point 3 */
 178           0xE8 },       /* SmartFanII: Fan2 temp point 4 */
 179         { 0x96,         /* SmartFanII: Fan3 temp point 1 */
 180           0xE9,         /* SmartFanII: Fan3 temp point 2 */
 181           0xEA,         /* SmartFanII: Fan3 temp point 3 */
 182           0xEB }        /* SmartFanII: Fan3 temp point 4 */
 183 };
 184
 185 static const u8 W83792D_REG_LEVELS[3][4] = {
 186         { 0x88,         /* (bit3-0) SmartFanII: Fan1 Non-Stop */
 187           0x88,         /* (bit7-4) SmartFanII: Fan1 Level 1 */
 188           0xE0,         /* (bit7-4) SmartFanII: Fan1 Level 2 */
 189           0xE0 },       /* (bit3-0) SmartFanII: Fan1 Level 3 */
 190         { 0x89,         /* (bit3-0) SmartFanII: Fan2 Non-Stop */
 191           0x89,         /* (bit7-4) SmartFanII: Fan2 Level 1 */
 192           0xE1,         /* (bit7-4) SmartFanII: Fan2 Level 2 */
 193           0xE1 },       /* (bit3-0) SmartFanII: Fan2 Level 3 */
 194         { 0x98,         /* (bit3-0) SmartFanII: Fan3 Non-Stop */
 195           0x98,         /* (bit7-4) SmartFanII: Fan3 Level 1 */
 196           0xE2,         /* (bit7-4) SmartFanII: Fan3 Level 2 */
 197           0xE2 }        /* (bit3-0) SmartFanII: Fan3 Level 3 */
 198 };
 199
 200 #define W83792D_REG_GPIO_EN             0x1A
 201 #define W83792D_REG_CONFIG              0x40
 202 #define W83792D_REG_VID_FANDIV          0x47
 203 #define W83792D_REG_CHIPID              0x49
 204 #define W83792D_REG_WCHIPID             0x58
 205 #define W83792D_REG_CHIPMAN             0x4F
 206 #define W83792D_REG_PIN                 0x4B
 207 #define W83792D_REG_I2C_SUBADDR         0x4A
 208
 209 #define W83792D_REG_ALARM1 0xA9         /* realtime status register1 */
 210 #define W83792D_REG_ALARM2 0xAA         /* realtime status register2 */
 211 #define W83792D_REG_ALARM3 0xAB         /* realtime status register3 */
 212 #define W83792D_REG_CHASSIS 0x42        /* Bit 5: Case Open status bit */
 213 #define W83792D_REG_CHASSIS_CLR 0x44    /* Bit 7: Case Open CLR_CHS/Reset bit */
 214
 215 /* control in0/in1 's limit modifiability */
 216 #define W83792D_REG_VID_IN_B            0x17
 217
 218 #define W83792D_REG_VBAT                0x5D
 219 #define W83792D_REG_I2C_ADDR            0x48
 220
 221 /*
 222  * Conversions. Rounding and limit checking is only done on the TO_REG
 223  * variants. Note that you should be a bit careful with which arguments
 224  * these macros are called: arguments may be evaluated more than once.
 225  * Fixing this is just not worth it.
 226  */
 227 #define IN_FROM_REG(nr, val) (((nr) <= 1) ? ((val) * 2) : \
 228                 ((((nr) == 6) || ((nr) == 7)) ? ((val) * 6) : ((val) * 4)))
 229 #define IN_TO_REG(nr, val) (((nr) <= 1) ? ((val) / 2) : \
 230                 ((((nr) == 6) || ((nr) == 7)) ? ((val) / 6) : ((val) / 4)))
 231
 232 static inline u8
 233 FAN_TO_REG(long rpm, int div)
 234 {
 235         if (rpm == 0)
 236                 return 255;
 237         rpm = SENSORS_LIMIT(rpm, 1, 1000000);
 238         return SENSORS_LIMIT((1350000 + rpm * div / 2) / (rpm * div), 1, 254);
 239 }
 240
 241 #define FAN_FROM_REG(val, div)  ((val) == 0   ? -1 : \
 242                                 ((val) == 255 ? 0 : \
 243                                                 1350000 / ((val) * (div))))
 244
 245 /* for temp1 */
 246 #define TEMP1_TO_REG(val)       (SENSORS_LIMIT(((val) < 0 ? (val)+0x100*1000 \
 247                                         : (val)) / 1000, 0, 0xff))
 248 #define TEMP1_FROM_REG(val)     (((val) & 0x80 ? (val)-0x100 : (val)) * 1000)
 249 /* for temp2 and temp3, because they need additional resolution */
 250 #define TEMP_ADD_FROM_REG(val1, val2) \
 251         ((((val1) & 0x80 ? (val1)-0x100 \
 252                 : (val1)) * 1000) + ((val2 & 0x80) ? 500 : 0))
 253 #define TEMP_ADD_TO_REG_HIGH(val) \
 254         (SENSORS_LIMIT(((val) < 0 ? (val)+0x100*1000 \
 255                         : (val)) / 1000, 0, 0xff))
 256 #define TEMP_ADD_TO_REG_LOW(val)        ((val%1000) ? 0x80 : 0x00)
 257
 258 #define DIV_FROM_REG(val)               (1 << (val))
 259
 260 static inline u8
 261 DIV_TO_REG(long val)
 262 {
 263         int i;
 264         val = SENSORS_LIMIT(val, 1, 128) >> 1;
 265         for (i = 0; i < 7; i++) {
 266                 if (val == 0)
 267                         break;
 268                 val >>= 1;
 269         }
 270         return (u8)i;
 271 }
 272
 273 struct w83792d_data {
 274         struct device *hwmon_dev;
 275
 276         struct mutex update_lock;
 277         char valid;             /* !=0 if following fields are valid */
 278         unsigned long last_updated;     /* In jiffies */
 279
 280         /* array of 2 pointers to subclients */
 281         struct i2c_client *lm75[2];
 282
 283         u8 in[9];               /* Register value */
 284         u8 in_max[9];           /* Register value */
 285         u8 in_min[9];           /* Register value */
 286         u16 low_bits;           /* Additional resolution to voltage in6-0 */
 287         u8 fan[7];              /* Register value */
 288         u8 fan_min[7];          /* Register value */
 289         u8 temp1[3];            /* current, over, thyst */
 290         u8 temp_add[2][6];      /* Register value */
 291         u8 fan_div[7];          /* Register encoding, shifted right */
 292         u8 pwm[7];              /*
 293                                  * We only consider the first 3 set of pwm,
 294                                  * although 792 chip has 7 set of pwm.
 295                                  */
 296         u8 pwmenable[3];
 297         u32 alarms;             /* realtime status register encoding,combined */
 298         u8 chassis;             /* Chassis status */
 299         u8 chassis_clear;       /* CLR_CHS, clear chassis intrusion detection */
 300         u8 thermal_cruise[3];   /* Smart FanI: Fan1,2,3 target value */
 301         u8 tolerance[3];        /* Fan1,2,3 tolerance(Smart Fan I/II) */
 302         u8 sf2_points[3][4];    /* Smart FanII: Fan1,2,3 temperature points */
 303         u8 sf2_levels[3][4];    /* Smart FanII: Fan1,2,3 duty cycle levels */
 304 };
 305
 306 static int w83792d_probe(struct i2c_client *client,
 307                          const struct i2c_device_id *id);
 308 static int w83792d_detect(struct i2c_client *client,
 309                           struct i2c_board_info *info);
 310 static int w83792d_remove(struct i2c_client *client);
 311 static struct w83792d_data *w83792d_update_device(struct device *dev);
 312
 313 #ifdef DEBUG
 314 static void w83792d_print_debug(struct w83792d_data *data, struct device *dev);
 315 #endif
 316
 317 static void w83792d_init_client(struct i2c_client *client);
 318
 319 static const struct i2c_device_id w83792d_id[] = {
 320         { "w83792d", 0 },
 321         { }
 322 };
 323 MODULE_DEVICE_TABLE(i2c, w83792d_id);
 324
 325 static struct i2c_driver w83792d_driver = {
 326         .class          = I2C_CLASS_HWMON,
 327         .driver = {
 328                 .name = "w83792d",
 329         },
 330         .probe          = w83792d_probe,
 331         .remove         = w83792d_remove,
 332         .id_table       = w83792d_id,
 333         .detect         = w83792d_detect,
 334         .address_list   = normal_i2c,
 335 };
 336
 337 static inline long in_count_from_reg(int nr, struct w83792d_data *data)
 338 {
 339         /* in7 and in8 do not have low bits, but the formula still works */
 340         return (data->in[nr] << 2) | ((data->low_bits >> (2 * nr)) & 0x03);
 341 }
 342
 343 /*
 344  * The SMBus locks itself. The Winbond W83792D chip has a bank register,
 345  * but the driver only accesses registers in bank 0, so we don't have
 346  * to switch banks and lock access between switches.
 347  */
 348 static inline int w83792d_read_value(struct i2c_client *client, u8 reg)
 349 {
 350         return i2c_smbus_read_byte_data(client, reg);
 351 }
 352
 353 static inline int
 354 w83792d_write_value(struct i2c_client *client, u8 reg, u8 value)
 355 {
 356         return i2c_smbus_write_byte_data(client, reg, value);
 357 }
 358
 359 /* following are the sysfs callback functions */
 360 static ssize_t show_in(struct device *dev, struct device_attribute *attr,
 361                         char *buf)
 362 {
 363         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 364         int nr = sensor_attr->index;
 365         struct w83792d_data *data = w83792d_update_device(dev);
 366         return sprintf(buf, "%ld\n",
 367                        IN_FROM_REG(nr, in_count_from_reg(nr, data)));
 368 }
 369
 370 #define show_in_reg(reg) \
 371 static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \
 372                         char *buf) \
 373 { \
 374         struct sensor_device_attribute *sensor_attr \
 375                 = to_sensor_dev_attr(attr); \
 376         int nr = sensor_attr->index; \
 377         struct w83792d_data *data = w83792d_update_device(dev); \
 378         return sprintf(buf, "%ld\n", \
 379                        (long)(IN_FROM_REG(nr, data->reg[nr]) * 4)); \
 380 }
 381
 382 show_in_reg(in_min);
 383 show_in_reg(in_max);
 384
 385 #define store_in_reg(REG, reg) \
 386 static ssize_t store_in_##reg(struct device *dev, \
 387                                 struct device_attribute *attr, \
 388                                 const char *buf, size_t count) \
 389 { \
 390         struct sensor_device_attribute *sensor_attr \
 391                         = to_sensor_dev_attr(attr); \
 392         int nr = sensor_attr->index; \
 393         struct i2c_client *client = to_i2c_client(dev); \
 394         struct w83792d_data *data = i2c_get_clientdata(client); \
 395         unsigned long val; \
 396         int err = kstrtoul(buf, 10, &val); \
 397         if (err) \
 398                 return err; \
 399         mutex_lock(&data->update_lock); \
 400         data->in_##reg[nr] = SENSORS_LIMIT(IN_TO_REG(nr, val) / 4, 0, 255); \
 401         w83792d_write_value(client, W83792D_REG_IN_##REG[nr], \
 402                             data->in_##reg[nr]); \
 403         mutex_unlock(&data->update_lock); \
 404          \
 405         return count; \
 406 }
 407 store_in_reg(MIN, min);
 408 store_in_reg(MAX, max);
 409
 410 #define show_fan_reg(reg) \
 411 static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \
 412                         char *buf) \
 413 { \
 414         struct sensor_device_attribute *sensor_attr \
 415                         = to_sensor_dev_attr(attr); \
 416         int nr = sensor_attr->index - 1; \
 417         struct w83792d_data *data = w83792d_update_device(dev); \
 418         return sprintf(buf, "%d\n", \
 419                 FAN_FROM_REG(data->reg[nr], DIV_FROM_REG(data->fan_div[nr]))); \
 420 }
 421
 422 show_fan_reg(fan);
 423 show_fan_reg(fan_min);
 424
 425 static ssize_t
 426 store_fan_min(struct device *dev, struct device_attribute *attr,
 427                 const char *buf, size_t count)
 428 {
 429         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 430         int nr = sensor_attr->index - 1;
 431         struct i2c_client *client = to_i2c_client(dev);
 432         struct w83792d_data *data = i2c_get_clientdata(client);
 433         unsigned long val;
 434         int err;
 435
 436         err = kstrtoul(buf, 10, &val);
 437         if (err)
 438                 return err;
 439
 440         mutex_lock(&data->update_lock);
 441         data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr]));
 442         w83792d_write_value(client, W83792D_REG_FAN_MIN[nr],
 443                                 data->fan_min[nr]);
 444         mutex_unlock(&data->update_lock);
 445
 446         return count;
 447 }
 448
 449 static ssize_t
 450 show_fan_div(struct device *dev, struct device_attribute *attr,
 451                 char *buf)
 452 {
 453         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 454         int nr = sensor_attr->index;
 455         struct w83792d_data *data = w83792d_update_device(dev);
 456         return sprintf(buf, "%u\n", DIV_FROM_REG(data->fan_div[nr - 1]));
 457 }
 458
 459 /*
 460  * Note: we save and restore the fan minimum here, because its value is
 461  * determined in part by the fan divisor.  This follows the principle of
 462  * least surprise; the user doesn't expect the fan minimum to change just
 463  * because the divisor changed.
 464  */
 465 static ssize_t
 466 store_fan_div(struct device *dev, struct device_attribute *attr,
 467                 const char *buf, size_t count)
 468 {
 469         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 470         int nr = sensor_attr->index - 1;
 471         struct i2c_client *client = to_i2c_client(dev);
 472         struct w83792d_data *data = i2c_get_clientdata(client);
 473         unsigned long min;
 474         /*u8 reg;*/
 475         u8 fan_div_reg = 0;
 476         u8 tmp_fan_div;
 477         unsigned long val;
 478         int err;
 479
 480         err = kstrtoul(buf, 10, &val);
 481         if (err)
 482                 return err;
 483
 484         /* Save fan_min */
 485         mutex_lock(&data->update_lock);
 486         min = FAN_FROM_REG(data->fan_min[nr],
 487                            DIV_FROM_REG(data->fan_div[nr]));
 488
 489         data->fan_div[nr] = DIV_TO_REG(val);
 490
 491         fan_div_reg = w83792d_read_value(client, W83792D_REG_FAN_DIV[nr >> 1]);
 492         fan_div_reg &= (nr & 0x01) ? 0x8f : 0xf8;
 493         tmp_fan_div = (nr & 0x01) ? (((data->fan_div[nr]) << 4) & 0x70)
 494                                         : ((data->fan_div[nr]) & 0x07);
 495         w83792d_write_value(client, W83792D_REG_FAN_DIV[nr >> 1],
 496                                         fan_div_reg | tmp_fan_div);
 497
 498         /* Restore fan_min */
 499         data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr]));
 500         w83792d_write_value(client, W83792D_REG_FAN_MIN[nr], data->fan_min[nr]);
 501         mutex_unlock(&data->update_lock);
 502
 503         return count;
 504 }
 505
 506 /* read/write the temperature1, includes measured value and limits */
 507
 508 static ssize_t show_temp1(struct device *dev, struct device_attribute *attr,
 509                                 char *buf)
 510 {
 511         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 512         int nr = sensor_attr->index;
 513         struct w83792d_data *data = w83792d_update_device(dev);
 514         return sprintf(buf, "%d\n", TEMP1_FROM_REG(data->temp1[nr]));
 515 }
 516
 517 static ssize_t store_temp1(struct device *dev, struct device_attribute *attr,
 518                                 const char *buf, size_t count)
 519 {
 520         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 521         int nr = sensor_attr->index;
 522         struct i2c_client *client = to_i2c_client(dev);
 523         struct w83792d_data *data = i2c_get_clientdata(client);
 524         long val;
 525         int err;
 526
 527         err = kstrtol(buf, 10, &val);
 528         if (err)
 529                 return err;
 530
 531         mutex_lock(&data->update_lock);
 532         data->temp1[nr] = TEMP1_TO_REG(val);
 533         w83792d_write_value(client, W83792D_REG_TEMP1[nr],
 534                 data->temp1[nr]);
 535         mutex_unlock(&data->update_lock);
 536
 537         return count;
 538 }
 539
 540 /* read/write the temperature2-3, includes measured value and limits */
 541
 542 static ssize_t show_temp23(struct device *dev, struct device_attribute *attr,
 543                                 char *buf)
 544 {
 545         struct sensor_device_attribute_2 *sensor_attr
 546           = to_sensor_dev_attr_2(attr);
 547         int nr = sensor_attr->nr;
 548         int index = sensor_attr->index;
 549         struct w83792d_data *data = w83792d_update_device(dev);
 550         return sprintf(buf, "%ld\n",
 551                 (long)TEMP_ADD_FROM_REG(data->temp_add[nr][index],
 552                         data->temp_add[nr][index+1]));
 553 }
 554
 555 static ssize_t store_temp23(struct device *dev, struct device_attribute *attr,
 556                                 const char *buf, size_t count)
 557 {
 558         struct sensor_device_attribute_2 *sensor_attr
 559           = to_sensor_dev_attr_2(attr);
 560         int nr = sensor_attr->nr;
 561         int index = sensor_attr->index;
 562         struct i2c_client *client = to_i2c_client(dev);
 563         struct w83792d_data *data = i2c_get_clientdata(client);
 564         long val;
 565         int err;
 566
 567         err = kstrtol(buf, 10, &val);
 568         if (err)
 569                 return err;
 570
 571         mutex_lock(&data->update_lock);
 572         data->temp_add[nr][index] = TEMP_ADD_TO_REG_HIGH(val);
 573         data->temp_add[nr][index+1] = TEMP_ADD_TO_REG_LOW(val);
 574         w83792d_write_value(client, W83792D_REG_TEMP_ADD[nr][index],
 575                 data->temp_add[nr][index]);
 576         w83792d_write_value(client, W83792D_REG_TEMP_ADD[nr][index+1],
 577                 data->temp_add[nr][index+1]);
 578         mutex_unlock(&data->update_lock);
 579
 580         return count;
 581 }
 582
 583 /* get reatime status of all sensors items: voltage, temp, fan */
 584 static ssize_t
 585 show_alarms_reg(struct device *dev, struct device_attribute *attr, char *buf)
 586 {
 587         struct w83792d_data *data = w83792d_update_device(dev);
 588         return sprintf(buf, "%d\n", data->alarms);
 589 }
 590
 591 static ssize_t show_alarm(struct device *dev,
 592                           struct device_attribute *attr, char *buf)
 593 {
 594         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 595         int nr = sensor_attr->index;
 596         struct w83792d_data *data = w83792d_update_device(dev);
 597         return sprintf(buf, "%d\n", (data->alarms >> nr) & 1);
 598 }
 599
 600 static ssize_t
 601 show_pwm(struct device *dev, struct device_attribute *attr,
 602                 char *buf)
 603 {
 604         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 605         int nr = sensor_attr->index;
 606         struct w83792d_data *data = w83792d_update_device(dev);
 607         return sprintf(buf, "%d\n", (data->pwm[nr] & 0x0f) << 4);
 608 }
 609
 610 static ssize_t
 611 show_pwmenable(struct device *dev, struct device_attribute *attr,
 612                         char *buf)
 613 {
 614         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 615         int nr = sensor_attr->index - 1;
 616         struct w83792d_data *data = w83792d_update_device(dev);
 617         long pwm_enable_tmp = 1;
 618
 619         switch (data->pwmenable[nr]) {
 620         case 0:
 621                 pwm_enable_tmp = 1; /* manual mode */
 622                 break;
 623         case 1:
 624                 pwm_enable_tmp = 3; /*thermal cruise/Smart Fan I */
 625                 break;
 626         case 2:
 627                 pwm_enable_tmp = 2; /* Smart Fan II */
 628                 break;
 629         }
 630
 631         return sprintf(buf, "%ld\n", pwm_enable_tmp);
 632 }
 633
 634 static ssize_t
 635 store_pwm(struct device *dev, struct device_attribute *attr,
 636                 const char *buf, size_t count)
 637 {
 638         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 639         int nr = sensor_attr->index;
 640         struct i2c_client *client = to_i2c_client(dev);
 641         struct w83792d_data *data = i2c_get_clientdata(client);
 642         unsigned long val;
 643         int err;
 644
 645         err = kstrtoul(buf, 10, &val);
 646         if (err)
 647                 return err;
 648         val = SENSORS_LIMIT(val, 0, 255) >> 4;
 649
 650         mutex_lock(&data->update_lock);
 651         val |= w83792d_read_value(client, W83792D_REG_PWM[nr]) & 0xf0;
 652         data->pwm[nr] = val;
 653         w83792d_write_value(client, W83792D_REG_PWM[nr], data->pwm[nr]);
 654         mutex_unlock(&data->update_lock);
 655
 656         return count;
 657 }
 658
 659 static ssize_t
 660 store_pwmenable(struct device *dev, struct device_attribute *attr,
 661                         const char *buf, size_t count)
 662 {
 663         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 664         int nr = sensor_attr->index - 1;
 665         struct i2c_client *client = to_i2c_client(dev);
 666         struct w83792d_data *data = i2c_get_clientdata(client);
 667         u8 fan_cfg_tmp, cfg1_tmp, cfg2_tmp, cfg3_tmp, cfg4_tmp;
 668         unsigned long val;
 669         int err;
 670
 671         err = kstrtoul(buf, 10, &val);
 672         if (err)
 673                 return err;
 674
 675         if (val < 1 || val > 3)
 676                 return -EINVAL;
 677
 678         mutex_lock(&data->update_lock);
 679         switch (val) {
 680         case 1:
 681                 data->pwmenable[nr] = 0; /* manual mode */
 682                 break;
 683         case 2:
 684                 data->pwmenable[nr] = 2; /* Smart Fan II */
 685                 break;
 686         case 3:
 687                 data->pwmenable[nr] = 1; /* thermal cruise/Smart Fan I */
 688                 break;
 689         }
 690         cfg1_tmp = data->pwmenable[0];
 691         cfg2_tmp = (data->pwmenable[1]) << 2;
 692         cfg3_tmp = (data->pwmenable[2]) << 4;
 693         cfg4_tmp = w83792d_read_value(client, W83792D_REG_FAN_CFG) & 0xc0;
 694         fan_cfg_tmp = ((cfg4_tmp | cfg3_tmp) | cfg2_tmp) | cfg1_tmp;
 695         w83792d_write_value(client, W83792D_REG_FAN_CFG, fan_cfg_tmp);
 696         mutex_unlock(&data->update_lock);
 697
 698         return count;
 699 }
 700
 701 static ssize_t
 702 show_pwm_mode(struct device *dev, struct device_attribute *attr,
 703                         char *buf)
 704 {
 705         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 706         int nr = sensor_attr->index;
 707         struct w83792d_data *data = w83792d_update_device(dev);
 708         return sprintf(buf, "%d\n", data->pwm[nr] >> 7);
 709 }
 710
 711 static ssize_t
 712 store_pwm_mode(struct device *dev, struct device_attribute *attr,
 713                         const char *buf, size_t count)
 714 {
 715         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 716         int nr = sensor_attr->index;
 717         struct i2c_client *client = to_i2c_client(dev);
 718         struct w83792d_data *data = i2c_get_clientdata(client);
 719         unsigned long val;
 720         int err;
 721
 722         err = kstrtoul(buf, 10, &val);
 723         if (err)
 724                 return err;
 725         if (val > 1)
 726                 return -EINVAL;
 727
 728         mutex_lock(&data->update_lock);
 729         data->pwm[nr] = w83792d_read_value(client, W83792D_REG_PWM[nr]);
 730         if (val) {                      /* PWM mode */
 731                 data->pwm[nr] |= 0x80;
 732         } else {                        /* DC mode */
 733                 data->pwm[nr] &= 0x7f;
 734         }
 735         w83792d_write_value(client, W83792D_REG_PWM[nr], data->pwm[nr]);
 736         mutex_unlock(&data->update_lock);
 737
 738         return count;
 739 }
 740
 741 static ssize_t
 742 show_chassis(struct device *dev, struct device_attribute *attr,
 743                         char *buf)
 744 {
 745         struct w83792d_data *data = w83792d_update_device(dev);
 746         return sprintf(buf, "%d\n", data->chassis);
 747 }
 748
 749 static ssize_t
 750 show_regs_chassis(struct device *dev, struct device_attribute *attr,
 751                         char *buf)
 752 {
 753         dev_warn(dev,
 754                  "Attribute %s is deprecated, use intrusion0_alarm instead\n",
 755                  "chassis");
 756         return show_chassis(dev, attr, buf);
 757 }
 758
 759 static ssize_t
 760 show_chassis_clear(struct device *dev, struct device_attribute *attr, char *buf)
 761 {
 762         struct w83792d_data *data = w83792d_update_device(dev);
 763         return sprintf(buf, "%d\n", data->chassis_clear);
 764 }
 765
 766 static ssize_t
 767 store_chassis_clear_legacy(struct device *dev, struct device_attribute *attr,
 768                         const char *buf, size_t count)
 769 {
 770         struct i2c_client *client = to_i2c_client(dev);
 771         struct w83792d_data *data = i2c_get_clientdata(client);
 772         unsigned long val;
 773         int err;
 774         u8 temp1 = 0, temp2 = 0;
 775
 776         dev_warn(dev,
 777                  "Attribute %s is deprecated, use intrusion0_alarm instead\n",
 778                  "chassis_clear");
 779
 780         err = kstrtoul(buf, 10, &val);
 781         if (err)
 782                 return err;
 783
 784         mutex_lock(&data->update_lock);
 785         data->chassis_clear = SENSORS_LIMIT(val, 0, 1);
 786         temp1 = ((data->chassis_clear) << 7) & 0x80;
 787         temp2 = w83792d_read_value(client,
 788                 W83792D_REG_CHASSIS_CLR) & 0x7f;
 789         w83792d_write_value(client, W83792D_REG_CHASSIS_CLR, temp1 | temp2);
 790         mutex_unlock(&data->update_lock);
 791
 792         return count;
 793 }
 794
 795 static ssize_t
 796 store_chassis_clear(struct device *dev, struct device_attribute *attr,
 797                         const char *buf, size_t count)
 798 {
 799         struct i2c_client *client = to_i2c_client(dev);
 800         struct w83792d_data *data = i2c_get_clientdata(client);
 801         unsigned long val;
 802         u8 reg;
 803
 804         if (kstrtoul(buf, 10, &val) || val != 0)
 805                 return -EINVAL;
 806
 807         mutex_lock(&data->update_lock);
 808         reg = w83792d_read_value(client, W83792D_REG_CHASSIS_CLR);
 809         w83792d_write_value(client, W83792D_REG_CHASSIS_CLR, reg | 0x80);
 810         data->valid = 0;                /* Force cache refresh */
 811         mutex_unlock(&data->update_lock);
 812
 813         return count;
 814 }
 815
 816 /* For Smart Fan I / Thermal Cruise */
 817 static ssize_t
 818 show_thermal_cruise(struct device *dev, struct device_attribute *attr,
 819                         char *buf)
 820 {
 821         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 822         int nr = sensor_attr->index;
 823         struct w83792d_data *data = w83792d_update_device(dev);
 824         return sprintf(buf, "%ld\n", (long)data->thermal_cruise[nr-1]);
 825 }
 826
 827 static ssize_t
 828 store_thermal_cruise(struct device *dev, struct device_attribute *attr,
 829                         const char *buf, size_t count)
 830 {
 831         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 832         int nr = sensor_attr->index - 1;
 833         struct i2c_client *client = to_i2c_client(dev);
 834         struct w83792d_data *data = i2c_get_clientdata(client);
 835         u8 target_tmp = 0, target_mask = 0;
 836         unsigned long val;
 837         int err;
 838
 839         err = kstrtoul(buf, 10, &val);
 840         if (err)
 841                 return err;
 842
 843         target_tmp = val;
 844         target_tmp = target_tmp & 0x7f;
 845         mutex_lock(&data->update_lock);
 846         target_mask = w83792d_read_value(client,
 847                                          W83792D_REG_THERMAL[nr]) & 0x80;
 848         data->thermal_cruise[nr] = SENSORS_LIMIT(target_tmp, 0, 255);
 849         w83792d_write_value(client, W83792D_REG_THERMAL[nr],
 850                 (data->thermal_cruise[nr]) | target_mask);
 851         mutex_unlock(&data->update_lock);
 852
 853         return count;
 854 }
 855
 856 /* For Smart Fan I/Thermal Cruise and Smart Fan II */
 857 static ssize_t
 858 show_tolerance(struct device *dev, struct device_attribute *attr,
 859                 char *buf)
 860 {
 861         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 862         int nr = sensor_attr->index;
 863         struct w83792d_data *data = w83792d_update_device(dev);
 864         return sprintf(buf, "%ld\n", (long)data->tolerance[nr-1]);
 865 }
 866
 867 static ssize_t
 868 store_tolerance(struct device *dev, struct device_attribute *attr,
 869                 const char *buf, size_t count)
 870 {
 871         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 872         int nr = sensor_attr->index - 1;
 873         struct i2c_client *client = to_i2c_client(dev);
 874         struct w83792d_data *data = i2c_get_clientdata(client);
 875         u8 tol_tmp, tol_mask;
 876         unsigned long val;
 877         int err;
 878
 879         err = kstrtoul(buf, 10, &val);
 880         if (err)
 881                 return err;
 882
 883         mutex_lock(&data->update_lock);
 884         tol_mask = w83792d_read_value(client,
 885                 W83792D_REG_TOLERANCE[nr]) & ((nr == 1) ? 0x0f : 0xf0);
 886         tol_tmp = SENSORS_LIMIT(val, 0, 15);
 887         tol_tmp &= 0x0f;
 888         data->tolerance[nr] = tol_tmp;
 889         if (nr == 1)
 890                 tol_tmp <<= 4;
 891         w83792d_write_value(client, W83792D_REG_TOLERANCE[nr],
 892                 tol_mask | tol_tmp);
 893         mutex_unlock(&data->update_lock);
 894
 895         return count;
 896 }
 897
 898 /* For Smart Fan II */
 899 static ssize_t
 900 show_sf2_point(struct device *dev, struct device_attribute *attr,
 901                 char *buf)
 902 {
 903         struct sensor_device_attribute_2 *sensor_attr
 904           = to_sensor_dev_attr_2(attr);
 905         int nr = sensor_attr->nr;
 906         int index = sensor_attr->index;
 907         struct w83792d_data *data = w83792d_update_device(dev);
 908         return sprintf(buf, "%ld\n", (long)data->sf2_points[index-1][nr-1]);
 909 }
 910
 911 static ssize_t
 912 store_sf2_point(struct device *dev, struct device_attribute *attr,
 913                 const char *buf, size_t count)
 914 {
 915         struct sensor_device_attribute_2 *sensor_attr
 916           = to_sensor_dev_attr_2(attr);
 917         int nr = sensor_attr->nr - 1;
 918         int index = sensor_attr->index - 1;
 919         struct i2c_client *client = to_i2c_client(dev);
 920         struct w83792d_data *data = i2c_get_clientdata(client);
 921         u8 mask_tmp = 0;
 922         unsigned long val;
 923         int err;
 924
 925         err = kstrtoul(buf, 10, &val);
 926         if (err)
 927                 return err;
 928
 929         mutex_lock(&data->update_lock);
 930         data->sf2_points[index][nr] = SENSORS_LIMIT(val, 0, 127);
 931         mask_tmp = w83792d_read_value(client,
 932                                         W83792D_REG_POINTS[index][nr]) & 0x80;
 933         w83792d_write_value(client, W83792D_REG_POINTS[index][nr],
 934                 mask_tmp|data->sf2_points[index][nr]);
 935         mutex_unlock(&data->update_lock);
 936
 937         return count;
 938 }
 939
 940 static ssize_t
 941 show_sf2_level(struct device *dev, struct device_attribute *attr,
 942                 char *buf)
 943 {
 944         struct sensor_device_attribute_2 *sensor_attr
 945           = to_sensor_dev_attr_2(attr);
 946         int nr = sensor_attr->nr;
 947         int index = sensor_attr->index;
 948         struct w83792d_data *data = w83792d_update_device(dev);
 949         return sprintf(buf, "%d\n",
 950                         (((data->sf2_levels[index-1][nr]) * 100) / 15));
 951 }
 952
 953 static ssize_t
 954 store_sf2_level(struct device *dev, struct device_attribute *attr,
 955                 const char *buf, size_t count)
 956 {
 957         struct sensor_device_attribute_2 *sensor_attr
 958           = to_sensor_dev_attr_2(attr);
 959         int nr = sensor_attr->nr;
 960         int index = sensor_attr->index - 1;
 961         struct i2c_client *client = to_i2c_client(dev);
 962         struct w83792d_data *data = i2c_get_clientdata(client);
 963         u8 mask_tmp = 0, level_tmp = 0;
 964         unsigned long val;
 965         int err;
 966
 967         err = kstrtoul(buf, 10, &val);
 968         if (err)
 969                 return err;
 970
 971         mutex_lock(&data->update_lock);
 972         data->sf2_levels[index][nr] = SENSORS_LIMIT((val * 15) / 100, 0, 15);
 973         mask_tmp = w83792d_read_value(client, W83792D_REG_LEVELS[index][nr])
 974                 & ((nr == 3) ? 0xf0 : 0x0f);
 975         if (nr == 3)
 976                 level_tmp = data->sf2_levels[index][nr];
 977         else
 978                 level_tmp = data->sf2_levels[index][nr] << 4;
 979         w83792d_write_value(client, W83792D_REG_LEVELS[index][nr],
 980                             level_tmp | mask_tmp);
 981         mutex_unlock(&data->update_lock);
 982
 983         return count;
 984 }
 985
 986
 987 static int
 988 w83792d_detect_subclients(struct i2c_client *new_client)
 989 {
 990         int i, id, err;
 991         int address = new_client->addr;
 992         u8 val;
 993         struct i2c_adapter *adapter = new_client->adapter;
 994         struct w83792d_data *data = i2c_get_clientdata(new_client);
 995
 996         id = i2c_adapter_id(adapter);
 997         if (force_subclients[0] == id && force_subclients[1] == address) {
 998                 for (i = 2; i <= 3; i++) {
 999                         if (force_subclients[i] < 0x48 ||
1000                             force_subclients[i] > 0x4f) {
1001                                 dev_err(&new_client->dev, "invalid subclient "
1002                                         "address %d; must be 0x48-0x4f\n",
1003                                         force_subclients[i]);
1004                                 err = -ENODEV;
1005                                 goto ERROR_SC_0;
1006                         }
1007                 }
1008                 w83792d_write_value(new_client, W83792D_REG_I2C_SUBADDR,
1009                                         (force_subclients[2] & 0x07) |
1010                                         ((force_subclients[3] & 0x07) << 4));
1011         }
1012
1013         val = w83792d_read_value(new_client, W83792D_REG_I2C_SUBADDR);
1014         if (!(val & 0x08))
1015                 data->lm75[0] = i2c_new_dummy(adapter, 0x48 + (val & 0x7));
1016         if (!(val & 0x80)) {
1017                 if ((data->lm75[0] != NULL) &&
1018                         ((val & 0x7) == ((val >> 4) & 0x7))) {
1019                         dev_err(&new_client->dev, "duplicate addresses 0x%x, "
1020                                 "use force_subclient\n", data->lm75[0]->addr);
1021                         err = -ENODEV;
1022                         goto ERROR_SC_1;
1023                 }
1024                 data->lm75[1] = i2c_new_dummy(adapter,
1025                                               0x48 + ((val >> 4) & 0x7));
1026         }
1027
1028         return 0;
1029
1030 /* Undo inits in case of errors */
1031
1032 ERROR_SC_1:
1033         if (data->lm75[0] != NULL)
1034                 i2c_unregister_device(data->lm75[0]);
1035 ERROR_SC_0:
1036         return err;
1037 }
1038
1039 static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, show_in, NULL, 0);
1040 static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_in, NULL, 1);
1041 static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_in, NULL, 2);
1042 static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, show_in, NULL, 3);
1043 static SENSOR_DEVICE_ATTR(in4_input, S_IRUGO, show_in, NULL, 4);
1044 static SENSOR_DEVICE_ATTR(in5_input, S_IRUGO, show_in, NULL, 5);
1045 static SENSOR_DEVICE_ATTR(in6_input, S_IRUGO, show_in, NULL, 6);
1046 static SENSOR_DEVICE_ATTR(in7_input, S_IRUGO, show_in, NULL, 7);
1047 static SENSOR_DEVICE_ATTR(in8_input, S_IRUGO, show_in, NULL, 8);
1048 static SENSOR_DEVICE_ATTR(in0_min, S_IWUSR | S_IRUGO,
1049                         show_in_min, store_in_min, 0);
1050 static SENSOR_DEVICE_ATTR(in1_min, S_IWUSR | S_IRUGO,
1051                         show_in_min, store_in_min, 1);
1052 static SENSOR_DEVICE_ATTR(in2_min, S_IWUSR | S_IRUGO,
1053                         show_in_min, store_in_min, 2);
1054 static SENSOR_DEVICE_ATTR(in3_min, S_IWUSR | S_IRUGO,
1055                         show_in_min, store_in_min, 3);
1056 static SENSOR_DEVICE_ATTR(in4_min, S_IWUSR | S_IRUGO,
1057                         show_in_min, store_in_min, 4);
1058 static SENSOR_DEVICE_ATTR(in5_min, S_IWUSR | S_IRUGO,
1059                         show_in_min, store_in_min, 5);
1060 static SENSOR_DEVICE_ATTR(in6_min, S_IWUSR | S_IRUGO,
1061                         show_in_min, store_in_min, 6);
1062 static SENSOR_DEVICE_ATTR(in7_min, S_IWUSR | S_IRUGO,
1063                         show_in_min, store_in_min, 7);
1064 static SENSOR_DEVICE_ATTR(in8_min, S_IWUSR | S_IRUGO,
1065                         show_in_min, store_in_min, 8);
1066 static SENSOR_DEVICE_ATTR(in0_max, S_IWUSR | S_IRUGO,
1067                         show_in_max, store_in_max, 0);
1068 static SENSOR_DEVICE_ATTR(in1_max, S_IWUSR | S_IRUGO,
1069                         show_in_max, store_in_max, 1);
1070 static SENSOR_DEVICE_ATTR(in2_max, S_IWUSR | S_IRUGO,
1071                         show_in_max, store_in_max, 2);
1072 static SENSOR_DEVICE_ATTR(in3_max, S_IWUSR | S_IRUGO,
1073                         show_in_max, store_in_max, 3);
1074 static SENSOR_DEVICE_ATTR(in4_max, S_IWUSR | S_IRUGO,
1075                         show_in_max, store_in_max, 4);
1076 static SENSOR_DEVICE_ATTR(in5_max, S_IWUSR | S_IRUGO,
1077                         show_in_max, store_in_max, 5);
1078 static SENSOR_DEVICE_ATTR(in6_max, S_IWUSR | S_IRUGO,
1079                         show_in_max, store_in_max, 6);
1080 static SENSOR_DEVICE_ATTR(in7_max, S_IWUSR | S_IRUGO,
1081                         show_in_max, store_in_max, 7);
1082 static SENSOR_DEVICE_ATTR(in8_max, S_IWUSR | S_IRUGO,
1083                         show_in_max, store_in_max, 8);
1084 static SENSOR_DEVICE_ATTR_2(temp1_input, S_IRUGO, show_temp1, NULL, 0, 0);
1085 static SENSOR_DEVICE_ATTR_2(temp2_input, S_IRUGO, show_temp23, NULL, 0, 0);
1086 static SENSOR_DEVICE_ATTR_2(temp3_input, S_IRUGO, show_temp23, NULL, 1, 0);
1087 static SENSOR_DEVICE_ATTR_2(temp1_max, S_IRUGO | S_IWUSR,
1088                         show_temp1, store_temp1, 0, 1);
1089 static SENSOR_DEVICE_ATTR_2(temp2_max, S_IRUGO | S_IWUSR, show_temp23,
1090                         store_temp23, 0, 2);
1091 static SENSOR_DEVICE_ATTR_2(temp3_max, S_IRUGO | S_IWUSR, show_temp23,
1092                         store_temp23, 1, 2);
1093 static SENSOR_DEVICE_ATTR_2(temp1_max_hyst, S_IRUGO | S_IWUSR,
1094                         show_temp1, store_temp1, 0, 2);
1095 static SENSOR_DEVICE_ATTR_2(temp2_max_hyst, S_IRUGO | S_IWUSR,
1096                         show_temp23, store_temp23, 0, 4);
1097 static SENSOR_DEVICE_ATTR_2(temp3_max_hyst, S_IRUGO | S_IWUSR,
1098                         show_temp23, store_temp23, 1, 4);
1099 static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL);
1100 static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0);
1101 static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1);
1102 static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 2);
1103 static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 3);
1104 static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 4);
1105 static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 5);
1106 static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 6);
1107 static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 7);
1108 static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 8);
1109 static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 9);
1110 static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 10);
1111 static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 11);
1112 static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 12);
1113 static SENSOR_DEVICE_ATTR(fan7_alarm, S_IRUGO, show_alarm, NULL, 15);
1114 static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 19);
1115 static SENSOR_DEVICE_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 20);
1116 static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 21);
1117 static SENSOR_DEVICE_ATTR(fan5_alarm, S_IRUGO, show_alarm, NULL, 22);
1118 static SENSOR_DEVICE_ATTR(fan6_alarm, S_IRUGO, show_alarm, NULL, 23);
1119 static DEVICE_ATTR(chassis, S_IRUGO, show_regs_chassis, NULL);
1120 static DEVICE_ATTR(chassis_clear, S_IRUGO | S_IWUSR,
1121                         show_chassis_clear, store_chassis_clear_legacy);
1122 static DEVICE_ATTR(intrusion0_alarm, S_IRUGO | S_IWUSR,
1123                         show_chassis, store_chassis_clear);
1124 static SENSOR_DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0);
1125 static SENSOR_DEVICE_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 1);
1126 static SENSOR_DEVICE_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 2);
1127 static SENSOR_DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO,
1128                         show_pwmenable, store_pwmenable, 1);
1129 static SENSOR_DEVICE_ATTR(pwm2_enable, S_IWUSR | S_IRUGO,
1130                         show_pwmenable, store_pwmenable, 2);
1131 static SENSOR_DEVICE_ATTR(pwm3_enable, S_IWUSR | S_IRUGO,
1132                         show_pwmenable, store_pwmenable, 3);
1133 static SENSOR_DEVICE_ATTR(pwm1_mode, S_IWUSR | S_IRUGO,
1134                         show_pwm_mode, store_pwm_mode, 0);
1135 static SENSOR_DEVICE_ATTR(pwm2_mode, S_IWUSR | S_IRUGO,
1136                         show_pwm_mode, store_pwm_mode, 1);
1137 static SENSOR_DEVICE_ATTR(pwm3_mode, S_IWUSR | S_IRUGO,
1138                         show_pwm_mode, store_pwm_mode, 2);
1139 static SENSOR_DEVICE_ATTR(tolerance1, S_IWUSR | S_IRUGO,
1140                         show_tolerance, store_tolerance, 1);
1141 static SENSOR_DEVICE_ATTR(tolerance2, S_IWUSR | S_IRUGO,
1142                         show_tolerance, store_tolerance, 2);
1143 static SENSOR_DEVICE_ATTR(tolerance3, S_IWUSR | S_IRUGO,
1144                         show_tolerance, store_tolerance, 3);
1145 static SENSOR_DEVICE_ATTR(thermal_cruise1, S_IWUSR | S_IRUGO,
1146                         show_thermal_cruise, store_thermal_cruise, 1);
1147 static SENSOR_DEVICE_ATTR(thermal_cruise2, S_IWUSR | S_IRUGO,
1148                         show_thermal_cruise, store_thermal_cruise, 2);
1149 static SENSOR_DEVICE_ATTR(thermal_cruise3, S_IWUSR | S_IRUGO,
1150                         show_thermal_cruise, store_thermal_cruise, 3);
1151 static SENSOR_DEVICE_ATTR_2(sf2_point1_fan1, S_IRUGO | S_IWUSR,
1152                         show_sf2_point, store_sf2_point, 1, 1);
1153 static SENSOR_DEVICE_ATTR_2(sf2_point2_fan1, S_IRUGO | S_IWUSR,
1154                         show_sf2_point, store_sf2_point, 2, 1);
1155 static SENSOR_DEVICE_ATTR_2(sf2_point3_fan1, S_IRUGO | S_IWUSR,
1156                         show_sf2_point, store_sf2_point, 3, 1);
1157 static SENSOR_DEVICE_ATTR_2(sf2_point4_fan1, S_IRUGO | S_IWUSR,
1158                         show_sf2_point, store_sf2_point, 4, 1);
1159 static SENSOR_DEVICE_ATTR_2(sf2_point1_fan2, S_IRUGO | S_IWUSR,
1160                         show_sf2_point, store_sf2_point, 1, 2);
1161 static SENSOR_DEVICE_ATTR_2(sf2_point2_fan2, S_IRUGO | S_IWUSR,
1162                         show_sf2_point, store_sf2_point, 2, 2);
1163 static SENSOR_DEVICE_ATTR_2(sf2_point3_fan2, S_IRUGO | S_IWUSR,
1164                         show_sf2_point, store_sf2_point, 3, 2);
1165 static SENSOR_DEVICE_ATTR_2(sf2_point4_fan2, S_IRUGO | S_IWUSR,
1166                         show_sf2_point, store_sf2_point, 4, 2);
1167 static SENSOR_DEVICE_ATTR_2(sf2_point1_fan3, S_IRUGO | S_IWUSR,
1168                         show_sf2_point, store_sf2_point, 1, 3);
1169 static SENSOR_DEVICE_ATTR_2(sf2_point2_fan3, S_IRUGO | S_IWUSR,
1170                         show_sf2_point, store_sf2_point, 2, 3);
1171 static SENSOR_DEVICE_ATTR_2(sf2_point3_fan3, S_IRUGO | S_IWUSR,
1172                         show_sf2_point, store_sf2_point, 3, 3);
1173 static SENSOR_DEVICE_ATTR_2(sf2_point4_fan3, S_IRUGO | S_IWUSR,
1174                         show_sf2_point, store_sf2_point, 4, 3);
1175 static SENSOR_DEVICE_ATTR_2(sf2_level1_fan1, S_IRUGO | S_IWUSR,
1176                         show_sf2_level, store_sf2_level, 1, 1);
1177 static SENSOR_DEVICE_ATTR_2(sf2_level2_fan1, S_IRUGO | S_IWUSR,
1178                         show_sf2_level, store_sf2_level, 2, 1);
1179 static SENSOR_DEVICE_ATTR_2(sf2_level3_fan1, S_IRUGO | S_IWUSR,
1180                         show_sf2_level, store_sf2_level, 3, 1);
1181 static SENSOR_DEVICE_ATTR_2(sf2_level1_fan2, S_IRUGO | S_IWUSR,
1182                         show_sf2_level, store_sf2_level, 1, 2);
1183 static SENSOR_DEVICE_ATTR_2(sf2_level2_fan2, S_IRUGO | S_IWUSR,
1184                         show_sf2_level, store_sf2_level, 2, 2);
1185 static SENSOR_DEVICE_ATTR_2(sf2_level3_fan2, S_IRUGO | S_IWUSR,
1186                         show_sf2_level, store_sf2_level, 3, 2);
1187 static SENSOR_DEVICE_ATTR_2(sf2_level1_fan3, S_IRUGO | S_IWUSR,
1188                         show_sf2_level, store_sf2_level, 1, 3);
1189 static SENSOR_DEVICE_ATTR_2(sf2_level2_fan3, S_IRUGO | S_IWUSR,
1190                         show_sf2_level, store_sf2_level, 2, 3);
1191 static SENSOR_DEVICE_ATTR_2(sf2_level3_fan3, S_IRUGO | S_IWUSR,
1192                         show_sf2_level, store_sf2_level, 3, 3);
1193 static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 1);
1194 static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 2);
1195 static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 3);
1196 static SENSOR_DEVICE_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 4);
1197 static SENSOR_DEVICE_ATTR(fan5_input, S_IRUGO, show_fan, NULL, 5);
1198 static SENSOR_DEVICE_ATTR(fan6_input, S_IRUGO, show_fan, NULL, 6);
1199 static SENSOR_DEVICE_ATTR(fan7_input, S_IRUGO, show_fan, NULL, 7);
1200 static SENSOR_DEVICE_ATTR(fan1_min, S_IWUSR | S_IRUGO,
1201                         show_fan_min, store_fan_min, 1);
1202 static SENSOR_DEVICE_ATTR(fan2_min, S_IWUSR | S_IRUGO,
1203                         show_fan_min, store_fan_min, 2);
1204 static SENSOR_DEVICE_ATTR(fan3_min, S_IWUSR | S_IRUGO,
1205                         show_fan_min, store_fan_min, 3);
1206 static SENSOR_DEVICE_ATTR(fan4_min, S_IWUSR | S_IRUGO,
1207                         show_fan_min, store_fan_min, 4);
1208 static SENSOR_DEVICE_ATTR(fan5_min, S_IWUSR | S_IRUGO,
1209                         show_fan_min, store_fan_min, 5);
1210 static SENSOR_DEVICE_ATTR(fan6_min, S_IWUSR | S_IRUGO,
1211                         show_fan_min, store_fan_min, 6);
1212 static SENSOR_DEVICE_ATTR(fan7_min, S_IWUSR | S_IRUGO,
1213                         show_fan_min, store_fan_min, 7);
1214 static SENSOR_DEVICE_ATTR(fan1_div, S_IWUSR | S_IRUGO,
1215                         show_fan_div, store_fan_div, 1);
1216 static SENSOR_DEVICE_ATTR(fan2_div, S_IWUSR | S_IRUGO,
1217                         show_fan_div, store_fan_div, 2);
1218 static SENSOR_DEVICE_ATTR(fan3_div, S_IWUSR | S_IRUGO,
1219                         show_fan_div, store_fan_div, 3);
1220 static SENSOR_DEVICE_ATTR(fan4_div, S_IWUSR | S_IRUGO,
1221                         show_fan_div, store_fan_div, 4);
1222 static SENSOR_DEVICE_ATTR(fan5_div, S_IWUSR | S_IRUGO,
1223                         show_fan_div, store_fan_div, 5);
1224 static SENSOR_DEVICE_ATTR(fan6_div, S_IWUSR | S_IRUGO,
1225                         show_fan_div, store_fan_div, 6);
1226 static SENSOR_DEVICE_ATTR(fan7_div, S_IWUSR | S_IRUGO,
1227                         show_fan_div, store_fan_div, 7);
1228
1229 static struct attribute *w83792d_attributes_fan[4][5] = {
1230         {
1231                 &sensor_dev_attr_fan4_input.dev_attr.attr,
1232                 &sensor_dev_attr_fan4_min.dev_attr.attr,
1233                 &sensor_dev_attr_fan4_div.dev_attr.attr,
1234                 &sensor_dev_attr_fan4_alarm.dev_attr.attr,
1235                 NULL
1236         }, {
1237                 &sensor_dev_attr_fan5_input.dev_attr.attr,
1238                 &sensor_dev_attr_fan5_min.dev_attr.attr,
1239                 &sensor_dev_attr_fan5_div.dev_attr.attr,
1240                 &sensor_dev_attr_fan5_alarm.dev_attr.attr,
1241                 NULL
1242         }, {
1243                 &sensor_dev_attr_fan6_input.dev_attr.attr,
1244                 &sensor_dev_attr_fan6_min.dev_attr.attr,
1245                 &sensor_dev_attr_fan6_div.dev_attr.attr,
1246                 &sensor_dev_attr_fan6_alarm.dev_attr.attr,
1247                 NULL
1248         }, {
1249                 &sensor_dev_attr_fan7_input.dev_attr.attr,
1250                 &sensor_dev_attr_fan7_min.dev_attr.attr,
1251                 &sensor_dev_attr_fan7_div.dev_attr.attr,
1252                 &sensor_dev_attr_fan7_alarm.dev_attr.attr,
1253                 NULL
1254         }
1255 };
1256
1257 static const struct attribute_group w83792d_group_fan[4] = {
1258         { .attrs = w83792d_attributes_fan[0] },
1259         { .attrs = w83792d_attributes_fan[1] },
1260         { .attrs = w83792d_attributes_fan[2] },
1261         { .attrs = w83792d_attributes_fan[3] },
1262 };
1263
1264 static struct attribute *w83792d_attributes[] = {
1265         &sensor_dev_attr_in0_input.dev_attr.attr,
1266         &sensor_dev_attr_in0_max.dev_attr.attr,
1267         &sensor_dev_attr_in0_min.dev_attr.attr,
1268         &sensor_dev_attr_in1_input.dev_attr.attr,
1269         &sensor_dev_attr_in1_max.dev_attr.attr,
1270         &sensor_dev_attr_in1_min.dev_attr.attr,
1271         &sensor_dev_attr_in2_input.dev_attr.attr,
1272         &sensor_dev_attr_in2_max.dev_attr.attr,
1273         &sensor_dev_attr_in2_min.dev_attr.attr,
1274         &sensor_dev_attr_in3_input.dev_attr.attr,
1275         &sensor_dev_attr_in3_max.dev_attr.attr,
1276         &sensor_dev_attr_in3_min.dev_attr.attr,
1277         &sensor_dev_attr_in4_input.dev_attr.attr,
1278         &sensor_dev_attr_in4_max.dev_attr.attr,
1279         &sensor_dev_attr_in4_min.dev_attr.attr,
1280         &sensor_dev_attr_in5_input.dev_attr.attr,
1281         &sensor_dev_attr_in5_max.dev_attr.attr,
1282         &sensor_dev_attr_in5_min.dev_attr.attr,
1283         &sensor_dev_attr_in6_input.dev_attr.attr,
1284         &sensor_dev_attr_in6_max.dev_attr.attr,
1285         &sensor_dev_attr_in6_min.dev_attr.attr,
1286         &sensor_dev_attr_in7_input.dev_attr.attr,
1287         &sensor_dev_attr_in7_max.dev_attr.attr,
1288         &sensor_dev_attr_in7_min.dev_attr.attr,
1289         &sensor_dev_attr_in8_input.dev_attr.attr,
1290         &sensor_dev_attr_in8_max.dev_attr.attr,
1291         &sensor_dev_attr_in8_min.dev_attr.attr,
1292         &sensor_dev_attr_in0_alarm.dev_attr.attr,
1293         &sensor_dev_attr_in1_alarm.dev_attr.attr,
1294         &sensor_dev_attr_in2_alarm.dev_attr.attr,
1295         &sensor_dev_attr_in3_alarm.dev_attr.attr,
1296         &sensor_dev_attr_in4_alarm.dev_attr.attr,
1297         &sensor_dev_attr_in5_alarm.dev_attr.attr,
1298         &sensor_dev_attr_in6_alarm.dev_attr.attr,
1299         &sensor_dev_attr_in7_alarm.dev_attr.attr,
1300         &sensor_dev_attr_in8_alarm.dev_attr.attr,
1301         &sensor_dev_attr_temp1_input.dev_attr.attr,
1302         &sensor_dev_attr_temp1_max.dev_attr.attr,
1303         &sensor_dev_attr_temp1_max_hyst.dev_attr.attr,
1304         &sensor_dev_attr_temp2_input.dev_attr.attr,
1305         &sensor_dev_attr_temp2_max.dev_attr.attr,
1306         &sensor_dev_attr_temp2_max_hyst.dev_attr.attr,
1307         &sensor_dev_attr_temp3_input.dev_attr.attr,
1308         &sensor_dev_attr_temp3_max.dev_attr.attr,
1309         &sensor_dev_attr_temp3_max_hyst.dev_attr.attr,
1310         &sensor_dev_attr_temp1_alarm.dev_attr.attr,
1311         &sensor_dev_attr_temp2_alarm.dev_attr.attr,
1312         &sensor_dev_attr_temp3_alarm.dev_attr.attr,
1313         &sensor_dev_attr_pwm1.dev_attr.attr,
1314         &sensor_dev_attr_pwm1_mode.dev_attr.attr,
1315         &sensor_dev_attr_pwm1_enable.dev_attr.attr,
1316         &sensor_dev_attr_pwm2.dev_attr.attr,
1317         &sensor_dev_attr_pwm2_mode.dev_attr.attr,
1318         &sensor_dev_attr_pwm2_enable.dev_attr.attr,
1319         &sensor_dev_attr_pwm3.dev_attr.attr,
1320         &sensor_dev_attr_pwm3_mode.dev_attr.attr,
1321         &sensor_dev_attr_pwm3_enable.dev_attr.attr,
1322         &dev_attr_alarms.attr,
1323         &dev_attr_chassis.attr,
1324         &dev_attr_chassis_clear.attr,
1325         &dev_attr_intrusion0_alarm.attr,
1326         &sensor_dev_attr_tolerance1.dev_attr.attr,
1327         &sensor_dev_attr_thermal_cruise1.dev_attr.attr,
1328         &sensor_dev_attr_tolerance2.dev_attr.attr,
1329         &sensor_dev_attr_thermal_cruise2.dev_attr.attr,
1330         &sensor_dev_attr_tolerance3.dev_attr.attr,
1331         &sensor_dev_attr_thermal_cruise3.dev_attr.attr,
1332         &sensor_dev_attr_sf2_point1_fan1.dev_attr.attr,
1333         &sensor_dev_attr_sf2_point2_fan1.dev_attr.attr,
1334         &sensor_dev_attr_sf2_point3_fan1.dev_attr.attr,
1335         &sensor_dev_attr_sf2_point4_fan1.dev_attr.attr,
1336         &sensor_dev_attr_sf2_point1_fan2.dev_attr.attr,
1337         &sensor_dev_attr_sf2_point2_fan2.dev_attr.attr,
1338         &sensor_dev_attr_sf2_point3_fan2.dev_attr.attr,
1339         &sensor_dev_attr_sf2_point4_fan2.dev_attr.attr,
1340         &sensor_dev_attr_sf2_point1_fan3.dev_attr.attr,
1341         &sensor_dev_attr_sf2_point2_fan3.dev_attr.attr,
1342         &sensor_dev_attr_sf2_point3_fan3.dev_attr.attr,
1343         &sensor_dev_attr_sf2_point4_fan3.dev_attr.attr,
1344         &sensor_dev_attr_sf2_level1_fan1.dev_attr.attr,
1345         &sensor_dev_attr_sf2_level2_fan1.dev_attr.attr,
1346         &sensor_dev_attr_sf2_level3_fan1.dev_attr.attr,
1347         &sensor_dev_attr_sf2_level1_fan2.dev_attr.attr,
1348         &sensor_dev_attr_sf2_level2_fan2.dev_attr.attr,
1349         &sensor_dev_attr_sf2_level3_fan2.dev_attr.attr,
1350         &sensor_dev_attr_sf2_level1_fan3.dev_attr.attr,
1351         &sensor_dev_attr_sf2_level2_fan3.dev_attr.attr,
1352         &sensor_dev_attr_sf2_level3_fan3.dev_attr.attr,
1353         &sensor_dev_attr_fan1_input.dev_attr.attr,
1354         &sensor_dev_attr_fan1_min.dev_attr.attr,
1355         &sensor_dev_attr_fan1_div.dev_attr.attr,
1356         &sensor_dev_attr_fan1_alarm.dev_attr.attr,
1357         &sensor_dev_attr_fan2_input.dev_attr.attr,
1358         &sensor_dev_attr_fan2_min.dev_attr.attr,
1359         &sensor_dev_attr_fan2_div.dev_attr.attr,
1360         &sensor_dev_attr_fan2_alarm.dev_attr.attr,
1361         &sensor_dev_attr_fan3_input.dev_attr.attr,
1362         &sensor_dev_attr_fan3_min.dev_attr.attr,
1363         &sensor_dev_attr_fan3_div.dev_attr.attr,
1364         &sensor_dev_attr_fan3_alarm.dev_attr.attr,
1365         NULL
1366 };
1367
1368 static const struct attribute_group w83792d_group = {
1369         .attrs = w83792d_attributes,
1370 };
1371
1372 /* Return 0 if detection is successful, -ENODEV otherwise */
1373 static int
1374 w83792d_detect(struct i2c_client *client, struct i2c_board_info *info)
1375 {
1376         struct i2c_adapter *adapter = client->adapter;
1377         int val1, val2;
1378         unsigned short address = client->addr;
1379
1380         if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
1381                 return -ENODEV;
1382
1383         if (w83792d_read_value(client, W83792D_REG_CONFIG) & 0x80)
1384                 return -ENODEV;
1385
1386         val1 = w83792d_read_value(client, W83792D_REG_BANK);
1387         val2 = w83792d_read_value(client, W83792D_REG_CHIPMAN);
1388         /* Check for Winbond ID if in bank 0 */
1389         if (!(val1 & 0x07)) {  /* is Bank0 */
1390                 if ((!(val1 & 0x80) && val2 != 0xa3) ||
1391                     ((val1 & 0x80) && val2 != 0x5c))
1392                         return -ENODEV;
1393         }
1394         /*
1395          * If Winbond chip, address of chip and W83792D_REG_I2C_ADDR
1396          * should match
1397          */
1398         if (w83792d_read_value(client, W83792D_REG_I2C_ADDR) != address)
1399                 return -ENODEV;
1400
1401         /*  Put it now into bank 0 and Vendor ID High Byte */
1402         w83792d_write_value(client,
1403                             W83792D_REG_BANK,
1404                             (w83792d_read_value(client,
1405                                 W83792D_REG_BANK) & 0x78) | 0x80);
1406
1407         /* Determine the chip type. */
1408         val1 = w83792d_read_value(client, W83792D_REG_WCHIPID);
1409         val2 = w83792d_read_value(client, W83792D_REG_CHIPMAN);
1410         if (val1 != 0x7a || val2 != 0x5c)
1411                 return -ENODEV;
1412
1413         strlcpy(info->type, "w83792d", I2C_NAME_SIZE);
1414
1415         return 0;
1416 }
1417
1418 static int
1419 w83792d_probe(struct i2c_client *client, const struct i2c_device_id *id)
1420 {
1421         struct w83792d_data *data;
1422         struct device *dev = &client->dev;
1423         int i, val1, err;
1424
1425         data = devm_kzalloc(dev, sizeof(struct w83792d_data), GFP_KERNEL);
1426         if (!data)
1427                 return -ENOMEM;
1428
1429         i2c_set_clientdata(client, data);
1430         data->valid = 0;
1431         mutex_init(&data->update_lock);
1432
1433         err = w83792d_detect_subclients(client);
1434         if (err)
1435                 return err;
1436
1437         /* Initialize the chip */
1438         w83792d_init_client(client);
1439
1440         /* A few vars need to be filled upon startup */
1441         for (i = 0; i < 7; i++) {
1442                 data->fan_min[i] = w83792d_read_value(client,
1443                                         W83792D_REG_FAN_MIN[i]);
1444         }
1445
1446         /* Register sysfs hooks */
1447         err = sysfs_create_group(&dev->kobj, &w83792d_group);
1448         if (err)
1449                 goto exit_i2c_unregister;
1450
1451         /*
1452          * Read GPIO enable register to check if pins for fan 4,5 are used as
1453          * GPIO
1454          */
1455         val1 = w83792d_read_value(client, W83792D_REG_GPIO_EN);
1456
1457         if (!(val1 & 0x40)) {
1458                 err = sysfs_create_group(&dev->kobj, &w83792d_group_fan[0]);
1459                 if (err)
1460                         goto exit_remove_files;
1461         }
1462
1463         if (!(val1 & 0x20)) {
1464                 err = sysfs_create_group(&dev->kobj, &w83792d_group_fan[1]);
1465                 if (err)
1466                         goto exit_remove_files;
1467         }
1468
1469         val1 = w83792d_read_value(client, W83792D_REG_PIN);
1470         if (val1 & 0x40) {
1471                 err = sysfs_create_group(&dev->kobj, &w83792d_group_fan[2]);
1472                 if (err)
1473                         goto exit_remove_files;
1474         }
1475
1476         if (val1 & 0x04) {
1477                 err = sysfs_create_group(&dev->kobj, &w83792d_group_fan[3]);
1478                 if (err)
1479                         goto exit_remove_files;
1480         }
1481
1482         data->hwmon_dev = hwmon_device_register(dev);
1483         if (IS_ERR(data->hwmon_dev)) {
1484                 err = PTR_ERR(data->hwmon_dev);
1485                 goto exit_remove_files;
1486         }
1487
1488         return 0;
1489
1490 exit_remove_files:
1491         sysfs_remove_group(&dev->kobj, &w83792d_group);
1492         for (i = 0; i < ARRAY_SIZE(w83792d_group_fan); i++)
1493                 sysfs_remove_group(&dev->kobj, &w83792d_group_fan[i]);
1494 exit_i2c_unregister:
1495         if (data->lm75[0] != NULL)
1496                 i2c_unregister_device(data->lm75[0]);
1497         if (data->lm75[1] != NULL)
1498                 i2c_unregister_device(data->lm75[1]);
1499         return err;
1500 }
1501
1502 static int
1503 w83792d_remove(struct i2c_client *client)
1504 {
1505         struct w83792d_data *data = i2c_get_clientdata(client);
1506         int i;
1507
1508         hwmon_device_unregister(data->hwmon_dev);
1509         sysfs_remove_group(&client->dev.kobj, &w83792d_group);
1510         for (i = 0; i < ARRAY_SIZE(w83792d_group_fan); i++)
1511                 sysfs_remove_group(&client->dev.kobj,
1512                                    &w83792d_group_fan[i]);
1513
1514         if (data->lm75[0] != NULL)
1515                 i2c_unregister_device(data->lm75[0]);
1516         if (data->lm75[1] != NULL)
1517                 i2c_unregister_device(data->lm75[1]);
1518
1519         return 0;
1520 }
1521
1522 static void
1523 w83792d_init_client(struct i2c_client *client)
1524 {
1525         u8 temp2_cfg, temp3_cfg, vid_in_b;
1526
1527         if (init)
1528                 w83792d_write_value(client, W83792D_REG_CONFIG, 0x80);
1529
1530         /*
1531          * Clear the bit6 of W83792D_REG_VID_IN_B(set it into 0):
1532          * W83792D_REG_VID_IN_B bit6 = 0: the high/low limit of
1533          * vin0/vin1 can be modified by user;
1534          * W83792D_REG_VID_IN_B bit6 = 1: the high/low limit of
1535          * vin0/vin1 auto-updated, can NOT be modified by user.
1536          */
1537         vid_in_b = w83792d_read_value(client, W83792D_REG_VID_IN_B);
1538         w83792d_write_value(client, W83792D_REG_VID_IN_B,
1539                             vid_in_b & 0xbf);
1540
1541         temp2_cfg = w83792d_read_value(client, W83792D_REG_TEMP2_CONFIG);
1542         temp3_cfg = w83792d_read_value(client, W83792D_REG_TEMP3_CONFIG);
1543         w83792d_write_value(client, W83792D_REG_TEMP2_CONFIG,
1544                                 temp2_cfg & 0xe6);
1545         w83792d_write_value(client, W83792D_REG_TEMP3_CONFIG,
1546                                 temp3_cfg & 0xe6);
1547
1548         /* Start monitoring */
1549         w83792d_write_value(client, W83792D_REG_CONFIG,
1550                             (w83792d_read_value(client,
1551                                                 W83792D_REG_CONFIG) & 0xf7)
1552                             | 0x01);
1553 }
1554
1555 static struct w83792d_data *w83792d_update_device(struct device *dev)
1556 {
1557         struct i2c_client *client = to_i2c_client(dev);
1558         struct w83792d_data *data = i2c_get_clientdata(client);
1559         int i, j;
1560         u8 reg_array_tmp[4], reg_tmp;
1561
1562         mutex_lock(&data->update_lock);
1563
1564         if (time_after
1565             (jiffies - data->last_updated, (unsigned long) (HZ * 3))
1566             || time_before(jiffies, data->last_updated) || !data->valid) {
1567                 dev_dbg(dev, "Starting device update\n");
1568
1569                 /* Update the voltages measured value and limits */
1570                 for (i = 0; i < 9; i++) {
1571                         data->in[i] = w83792d_read_value(client,
1572                                                 W83792D_REG_IN[i]);
1573                         data->in_max[i] = w83792d_read_value(client,
1574                                                 W83792D_REG_IN_MAX[i]);
1575                         data->in_min[i] = w83792d_read_value(client,
1576                                                 W83792D_REG_IN_MIN[i]);
1577                 }
1578                 data->low_bits = w83792d_read_value(client,
1579                                                 W83792D_REG_LOW_BITS1) +
1580                                  (w83792d_read_value(client,
1581                                                 W83792D_REG_LOW_BITS2) << 8);
1582                 for (i = 0; i < 7; i++) {
1583                         /* Update the Fan measured value and limits */
1584                         data->fan[i] = w83792d_read_value(client,
1585                                                 W83792D_REG_FAN[i]);
1586                         data->fan_min[i] = w83792d_read_value(client,
1587                                                 W83792D_REG_FAN_MIN[i]);
1588                         /* Update the PWM/DC Value and PWM/DC flag */
1589                         data->pwm[i] = w83792d_read_value(client,
1590                                                 W83792D_REG_PWM[i]);
1591                 }
1592
1593                 reg_tmp = w83792d_read_value(client, W83792D_REG_FAN_CFG);
1594                 data->pwmenable[0] = reg_tmp & 0x03;
1595                 data->pwmenable[1] = (reg_tmp>>2) & 0x03;
1596                 data->pwmenable[2] = (reg_tmp>>4) & 0x03;
1597
1598                 for (i = 0; i < 3; i++) {
1599                         data->temp1[i] = w83792d_read_value(client,
1600                                                         W83792D_REG_TEMP1[i]);
1601                 }
1602                 for (i = 0; i < 2; i++) {
1603                         for (j = 0; j < 6; j++) {
1604                                 data->temp_add[i][j] = w83792d_read_value(
1605                                         client, W83792D_REG_TEMP_ADD[i][j]);
1606                         }
1607                 }
1608
1609                 /* Update the Fan Divisor */
1610                 for (i = 0; i < 4; i++) {
1611                         reg_array_tmp[i] = w83792d_read_value(client,
1612                                                         W83792D_REG_FAN_DIV[i]);
1613                 }
1614                 data->fan_div[0] = reg_array_tmp[0] & 0x07;
1615                 data->fan_div[1] = (reg_array_tmp[0] >> 4) & 0x07;
1616                 data->fan_div[2] = reg_array_tmp[1] & 0x07;
1617                 data->fan_div[3] = (reg_array_tmp[1] >> 4) & 0x07;
1618                 data->fan_div[4] = reg_array_tmp[2] & 0x07;
1619                 data->fan_div[5] = (reg_array_tmp[2] >> 4) & 0x07;
1620                 data->fan_div[6] = reg_array_tmp[3] & 0x07;
1621
1622                 /* Update the realtime status */
1623                 data->alarms = w83792d_read_value(client, W83792D_REG_ALARM1) +
1624                         (w83792d_read_value(client, W83792D_REG_ALARM2) << 8) +
1625                         (w83792d_read_value(client, W83792D_REG_ALARM3) << 16);
1626
1627                 /* Update CaseOpen status and it's CLR_CHS. */
1628                 data->chassis = (w83792d_read_value(client,
1629                         W83792D_REG_CHASSIS) >> 5) & 0x01;
1630                 data->chassis_clear = (w83792d_read_value(client,
1631                         W83792D_REG_CHASSIS_CLR) >> 7) & 0x01;
1632
1633                 /* Update Thermal Cruise/Smart Fan I target value */
1634                 for (i = 0; i < 3; i++) {
1635                         data->thermal_cruise[i] =
1636                                 w83792d_read_value(client,
1637                                 W83792D_REG_THERMAL[i]) & 0x7f;
1638                 }
1639
1640                 /* Update Smart Fan I/II tolerance */
1641                 reg_tmp = w83792d_read_value(client, W83792D_REG_TOLERANCE[0]);
1642                 data->tolerance[0] = reg_tmp & 0x0f;
1643                 data->tolerance[1] = (reg_tmp >> 4) & 0x0f;
1644                 data->tolerance[2] = w83792d_read_value(client,
1645                                         W83792D_REG_TOLERANCE[2]) & 0x0f;
1646
1647                 /* Update Smart Fan II temperature points */
1648                 for (i = 0; i < 3; i++) {
1649                         for (j = 0; j < 4; j++) {
1650                                 data->sf2_points[i][j]
1651                                   = w83792d_read_value(client,
1652                                         W83792D_REG_POINTS[i][j]) & 0x7f;
1653                         }
1654                 }
1655
1656                 /* Update Smart Fan II duty cycle levels */
1657                 for (i = 0; i < 3; i++) {
1658                         reg_tmp = w83792d_read_value(client,
1659                                                 W83792D_REG_LEVELS[i][0]);
1660                         data->sf2_levels[i][0] = reg_tmp & 0x0f;
1661                         data->sf2_levels[i][1] = (reg_tmp >> 4) & 0x0f;
1662                         reg_tmp = w83792d_read_value(client,
1663                                                 W83792D_REG_LEVELS[i][2]);
1664                         data->sf2_levels[i][2] = (reg_tmp >> 4) & 0x0f;
1665                         data->sf2_levels[i][3] = reg_tmp & 0x0f;
1666                 }
1667
1668                 data->last_updated = jiffies;
1669                 data->valid = 1;
1670         }
1671
1672         mutex_unlock(&data->update_lock);
1673
1674 #ifdef DEBUG
1675         w83792d_print_debug(data, dev);
1676 #endif
1677
1678         return data;
1679 }
1680
1681 #ifdef DEBUG
1682 static void w83792d_print_debug(struct w83792d_data *data, struct device *dev)
1683 {
1684         int i = 0, j = 0;
1685         dev_dbg(dev, "==========The following is the debug message...========\n");
1686         dev_dbg(dev, "9 set of Voltages: =====>\n");
1687         for (i = 0; i < 9; i++) {
1688                 dev_dbg(dev, "vin[%d] is: 0x%x\n", i, data->in[i]);
1689                 dev_dbg(dev, "vin[%d] max is: 0x%x\n", i, data->in_max[i]);
1690                 dev_dbg(dev, "vin[%d] min is: 0x%x\n", i, data->in_min[i]);
1691         }
1692         dev_dbg(dev, "Low Bit1 is: 0x%x\n", data->low_bits & 0xff);
1693         dev_dbg(dev, "Low Bit2 is: 0x%x\n", data->low_bits >> 8);
1694         dev_dbg(dev, "7 set of Fan Counts and Duty Cycles: =====>\n");
1695         for (i = 0; i < 7; i++) {
1696                 dev_dbg(dev, "fan[%d] is: 0x%x\n", i, data->fan[i]);
1697                 dev_dbg(dev, "fan[%d] min is: 0x%x\n", i, data->fan_min[i]);
1698                 dev_dbg(dev, "pwm[%d]     is: 0x%x\n", i, data->pwm[i]);
1699         }
1700         dev_dbg(dev, "3 set of Temperatures: =====>\n");
1701         for (i = 0; i < 3; i++)
1702                 dev_dbg(dev, "temp1[%d] is: 0x%x\n", i, data->temp1[i]);
1703
1704         for (i = 0; i < 2; i++) {
1705                 for (j = 0; j < 6; j++) {
1706                         dev_dbg(dev, "temp_add[%d][%d] is: 0x%x\n", i, j,
1707                                                         data->temp_add[i][j]);
1708                 }
1709         }
1710
1711         for (i = 0; i < 7; i++)
1712                 dev_dbg(dev, "fan_div[%d] is: 0x%x\n", i, data->fan_div[i]);
1713
1714         dev_dbg(dev, "==========End of the debug message...================\n");
1715         dev_dbg(dev, "\n");
1716 }
1717 #endif
1718
1719 module_i2c_driver(w83792d_driver);
1720
1721 MODULE_AUTHOR("Chunhao Huang @ Winbond <DZShen@Winbond.com.tw>");
1722 MODULE_DESCRIPTION("W83792AD/D driver for linux-2.6");
1723 MODULE_LICENSE("GPL");