git.oblomov.eu Git - linux-2.6/blob - 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 unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, 0x2f, I2C_CLIENT_END };
  50
  51 /* Insmod parameters */
  52 I2C_CLIENT_INSMOD_1(w83792d);
  53 I2C_CLIENT_MODULE_PARM(force_subclients, "List of subclient addresses: "
  54                         "{bus, clientaddr, subclientaddr1, subclientaddr2}");
  55
  56 static int init;
  57 module_param(init, bool, 0);
  58 MODULE_PARM_DESC(init, "Set to one to force chip initialization");
  59
  60 /* The W83792D registers */
  61 static const u8 W83792D_REG_IN[9] = {
  62         0x20,   /* Vcore A in DataSheet */
  63         0x21,   /* Vcore B in DataSheet */
  64         0x22,   /* VIN0 in DataSheet */
  65         0x23,   /* VIN1 in DataSheet */
  66         0x24,   /* VIN2 in DataSheet */
  67         0x25,   /* VIN3 in DataSheet */
  68         0x26,   /* 5VCC in DataSheet */
  69         0xB0,   /* 5VSB in DataSheet */
  70         0xB1    /* VBAT in DataSheet */
  71 };
  72 #define W83792D_REG_LOW_BITS1 0x3E  /* Low Bits I in DataSheet */
  73 #define W83792D_REG_LOW_BITS2 0x3F  /* Low Bits II in DataSheet */
  74 static const u8 W83792D_REG_IN_MAX[9] = {
  75         0x2B,   /* Vcore A High Limit in DataSheet */
  76         0x2D,   /* Vcore B High Limit in DataSheet */
  77         0x2F,   /* VIN0 High Limit in DataSheet */
  78         0x31,   /* VIN1 High Limit in DataSheet */
  79         0x33,   /* VIN2 High Limit in DataSheet */
  80         0x35,   /* VIN3 High Limit in DataSheet */
  81         0x37,   /* 5VCC High Limit in DataSheet */
  82         0xB4,   /* 5VSB High Limit in DataSheet */
  83         0xB6    /* VBAT High Limit in DataSheet */
  84 };
  85 static const u8 W83792D_REG_IN_MIN[9] = {
  86         0x2C,   /* Vcore A Low Limit in DataSheet */
  87         0x2E,   /* Vcore B Low Limit in DataSheet */
  88         0x30,   /* VIN0 Low Limit in DataSheet */
  89         0x32,   /* VIN1 Low Limit in DataSheet */
  90         0x34,   /* VIN2 Low Limit in DataSheet */
  91         0x36,   /* VIN3 Low Limit in DataSheet */
  92         0x38,   /* 5VCC Low Limit in DataSheet */
  93         0xB5,   /* 5VSB Low Limit in DataSheet */
  94         0xB7    /* VBAT Low Limit in DataSheet */
  95 };
  96 static const u8 W83792D_REG_FAN[7] = {
  97         0x28,   /* FAN 1 Count in DataSheet */
  98         0x29,   /* FAN 2 Count in DataSheet */
  99         0x2A,   /* FAN 3 Count in DataSheet */
 100         0xB8,   /* FAN 4 Count in DataSheet */
 101         0xB9,   /* FAN 5 Count in DataSheet */
 102         0xBA,   /* FAN 6 Count in DataSheet */
 103         0xBE    /* FAN 7 Count in DataSheet */
 104 };
 105 static const u8 W83792D_REG_FAN_MIN[7] = {
 106         0x3B,   /* FAN 1 Count Low Limit in DataSheet */
 107         0x3C,   /* FAN 2 Count Low Limit in DataSheet */
 108         0x3D,   /* FAN 3 Count Low Limit in DataSheet */
 109         0xBB,   /* FAN 4 Count Low Limit in DataSheet */
 110         0xBC,   /* FAN 5 Count Low Limit in DataSheet */
 111         0xBD,   /* FAN 6 Count Low Limit in DataSheet */
 112         0xBF    /* FAN 7 Count Low Limit in DataSheet */
 113 };
 114 #define W83792D_REG_FAN_CFG 0x84        /* FAN Configuration in DataSheet */
 115 static const u8 W83792D_REG_FAN_DIV[4] = {
 116         0x47,   /* contains FAN2 and FAN1 Divisor */
 117         0x5B,   /* contains FAN4 and FAN3 Divisor */
 118         0x5C,   /* contains FAN6 and FAN5 Divisor */
 119         0x9E    /* contains FAN7 Divisor. */
 120 };
 121 static const u8 W83792D_REG_PWM[7] = {
 122         0x81,   /* FAN 1 Duty Cycle, be used to control */
 123         0x83,   /* FAN 2 Duty Cycle, be used to control */
 124         0x94,   /* FAN 3 Duty Cycle, be used to control */
 125         0xA3,   /* FAN 4 Duty Cycle, be used to control */
 126         0xA4,   /* FAN 5 Duty Cycle, be used to control */
 127         0xA5,   /* FAN 6 Duty Cycle, be used to control */
 128         0xA6    /* FAN 7 Duty Cycle, be used to control */
 129 };
 130 #define W83792D_REG_BANK                0x4E
 131 #define W83792D_REG_TEMP2_CONFIG        0xC2
 132 #define W83792D_REG_TEMP3_CONFIG        0xCA
 133
 134 static const u8 W83792D_REG_TEMP1[3] = {
 135         0x27,   /* TEMP 1 in DataSheet */
 136         0x39,   /* TEMP 1 Over in DataSheet */
 137         0x3A,   /* TEMP 1 Hyst in DataSheet */
 138 };
 139
 140 static const u8 W83792D_REG_TEMP_ADD[2][6] = {
 141         { 0xC0,         /* TEMP 2 in DataSheet */
 142           0xC1,         /* TEMP 2(0.5 deg) in DataSheet */
 143           0xC5,         /* TEMP 2 Over High part in DataSheet */
 144           0xC6,         /* TEMP 2 Over Low part in DataSheet */
 145           0xC3,         /* TEMP 2 Thyst High part in DataSheet */
 146           0xC4 },       /* TEMP 2 Thyst Low part in DataSheet */
 147         { 0xC8,         /* TEMP 3 in DataSheet */
 148           0xC9,         /* TEMP 3(0.5 deg) in DataSheet */
 149           0xCD,         /* TEMP 3 Over High part in DataSheet */
 150           0xCE,         /* TEMP 3 Over Low part in DataSheet */
 151           0xCB,         /* TEMP 3 Thyst High part in DataSheet */
 152           0xCC }        /* TEMP 3 Thyst Low part in DataSheet */
 153 };
 154
 155 static const u8 W83792D_REG_THERMAL[3] = {
 156         0x85,   /* SmartFanI: Fan1 target value */
 157         0x86,   /* SmartFanI: Fan2 target value */
 158         0x96    /* SmartFanI: Fan3 target value */
 159 };
 160
 161 static const u8 W83792D_REG_TOLERANCE[3] = {
 162         0x87,   /* (bit3-0)SmartFan Fan1 tolerance */
 163         0x87,   /* (bit7-4)SmartFan Fan2 tolerance */
 164         0x97    /* (bit3-0)SmartFan Fan3 tolerance */
 165 };
 166
 167 static const u8 W83792D_REG_POINTS[3][4] = {
 168         { 0x85,         /* SmartFanII: Fan1 temp point 1 */
 169           0xE3,         /* SmartFanII: Fan1 temp point 2 */
 170           0xE4,         /* SmartFanII: Fan1 temp point 3 */
 171           0xE5 },       /* SmartFanII: Fan1 temp point 4 */
 172         { 0x86,         /* SmartFanII: Fan2 temp point 1 */
 173           0xE6,         /* SmartFanII: Fan2 temp point 2 */
 174           0xE7,         /* SmartFanII: Fan2 temp point 3 */
 175           0xE8 },       /* SmartFanII: Fan2 temp point 4 */
 176         { 0x96,         /* SmartFanII: Fan3 temp point 1 */
 177           0xE9,         /* SmartFanII: Fan3 temp point 2 */
 178           0xEA,         /* SmartFanII: Fan3 temp point 3 */
 179           0xEB }        /* SmartFanII: Fan3 temp point 4 */
 180 };
 181
 182 static const u8 W83792D_REG_LEVELS[3][4] = {
 183         { 0x88,         /* (bit3-0) SmartFanII: Fan1 Non-Stop */
 184           0x88,         /* (bit7-4) SmartFanII: Fan1 Level 1 */
 185           0xE0,         /* (bit7-4) SmartFanII: Fan1 Level 2 */
 186           0xE0 },       /* (bit3-0) SmartFanII: Fan1 Level 3 */
 187         { 0x89,         /* (bit3-0) SmartFanII: Fan2 Non-Stop */
 188           0x89,         /* (bit7-4) SmartFanII: Fan2 Level 1 */
 189           0xE1,         /* (bit7-4) SmartFanII: Fan2 Level 2 */
 190           0xE1 },       /* (bit3-0) SmartFanII: Fan2 Level 3 */
 191         { 0x98,         /* (bit3-0) SmartFanII: Fan3 Non-Stop */
 192           0x98,         /* (bit7-4) SmartFanII: Fan3 Level 1 */
 193           0xE2,         /* (bit7-4) SmartFanII: Fan3 Level 2 */
 194           0xE2 }        /* (bit3-0) SmartFanII: Fan3 Level 3 */
 195 };
 196
 197 #define W83792D_REG_GPIO_EN             0x1A
 198 #define W83792D_REG_CONFIG              0x40
 199 #define W83792D_REG_VID_FANDIV          0x47
 200 #define W83792D_REG_CHIPID              0x49
 201 #define W83792D_REG_WCHIPID             0x58
 202 #define W83792D_REG_CHIPMAN             0x4F
 203 #define W83792D_REG_PIN                 0x4B
 204 #define W83792D_REG_I2C_SUBADDR         0x4A
 205
 206 #define W83792D_REG_ALARM1 0xA9         /* realtime status register1 */
 207 #define W83792D_REG_ALARM2 0xAA         /* realtime status register2 */
 208 #define W83792D_REG_ALARM3 0xAB         /* realtime status register3 */
 209 #define W83792D_REG_CHASSIS 0x42        /* Bit 5: Case Open status bit */
 210 #define W83792D_REG_CHASSIS_CLR 0x44    /* Bit 7: Case Open CLR_CHS/Reset bit */
 211
 212 /* control in0/in1 's limit modifiability */
 213 #define W83792D_REG_VID_IN_B            0x17
 214
 215 #define W83792D_REG_VBAT                0x5D
 216 #define W83792D_REG_I2C_ADDR            0x48
 217
 218 /* Conversions. Rounding and limit checking is only done on the TO_REG
 219    variants. Note that you should be a bit careful with which arguments
 220    these macros are called: arguments may be evaluated more than once.
 221    Fixing this is just not worth it. */
 222 #define IN_FROM_REG(nr,val) (((nr)<=1)?(val*2): \
 223                                 ((((nr)==6)||((nr)==7))?(val*6):(val*4)))
 224 #define IN_TO_REG(nr,val) (((nr)<=1)?(val/2): \
 225                                 ((((nr)==6)||((nr)==7))?(val/6):(val/4)))
 226
 227 static inline u8
 228 FAN_TO_REG(long rpm, int div)
 229 {
 230         if (rpm == 0)
 231                 return 255;
 232         rpm = SENSORS_LIMIT(rpm, 1, 1000000);
 233         return SENSORS_LIMIT((1350000 + rpm * div / 2) / (rpm * div), 1, 254);
 234 }
 235
 236 #define FAN_FROM_REG(val,div)   ((val) == 0   ? -1 : \
 237                                 ((val) == 255 ? 0 : \
 238                                                 1350000 / ((val) * (div))))
 239
 240 /* for temp1 */
 241 #define TEMP1_TO_REG(val)       (SENSORS_LIMIT(((val) < 0 ? (val)+0x100*1000 \
 242                                         : (val)) / 1000, 0, 0xff))
 243 #define TEMP1_FROM_REG(val)     (((val) & 0x80 ? (val)-0x100 : (val)) * 1000)
 244 /* for temp2 and temp3, because they need addtional resolution */
 245 #define TEMP_ADD_FROM_REG(val1, val2) \
 246         ((((val1) & 0x80 ? (val1)-0x100 \
 247                 : (val1)) * 1000) + ((val2 & 0x80) ? 500 : 0))
 248 #define TEMP_ADD_TO_REG_HIGH(val) \
 249         (SENSORS_LIMIT(((val) < 0 ? (val)+0x100*1000 \
 250                         : (val)) / 1000, 0, 0xff))
 251 #define TEMP_ADD_TO_REG_LOW(val)        ((val%1000) ? 0x80 : 0x00)
 252
 253 #define DIV_FROM_REG(val)               (1 << (val))
 254
 255 static inline u8
 256 DIV_TO_REG(long val)
 257 {
 258         int i;
 259         val = SENSORS_LIMIT(val, 1, 128) >> 1;
 260         for (i = 0; i < 7; i++) {
 261                 if (val == 0)
 262                         break;
 263                 val >>= 1;
 264         }
 265         return ((u8) i);
 266 }
 267
 268 struct w83792d_data {
 269         struct i2c_client client;
 270         struct class_device *class_dev;
 271         enum chips type;
 272
 273         struct mutex update_lock;
 274         char valid;             /* !=0 if following fields are valid */
 275         unsigned long last_updated;     /* In jiffies */
 276
 277         /* array of 2 pointers to subclients */
 278         struct i2c_client *lm75[2];
 279
 280         u8 in[9];               /* Register value */
 281         u8 in_max[9];           /* Register value */
 282         u8 in_min[9];           /* Register value */
 283         u16 low_bits;           /* Additional resolution to voltage in6-0 */
 284         u8 fan[7];              /* Register value */
 285         u8 fan_min[7];          /* Register value */
 286         u8 temp1[3];            /* current, over, thyst */
 287         u8 temp_add[2][6];      /* Register value */
 288         u8 fan_div[7];          /* Register encoding, shifted right */
 289         u8 pwm[7];              /* We only consider the first 3 set of pwm,
 290                                    although 792 chip has 7 set of pwm. */
 291         u8 pwmenable[3];
 292         u32 alarms;             /* realtime status register encoding,combined */
 293         u8 chassis;             /* Chassis status */
 294         u8 chassis_clear;       /* CLR_CHS, clear chassis intrusion detection */
 295         u8 thermal_cruise[3];   /* Smart FanI: Fan1,2,3 target value */
 296         u8 tolerance[3];        /* Fan1,2,3 tolerance(Smart Fan I/II) */
 297         u8 sf2_points[3][4];    /* Smart FanII: Fan1,2,3 temperature points */
 298         u8 sf2_levels[3][4];    /* Smart FanII: Fan1,2,3 duty cycle levels */
 299 };
 300
 301 static int w83792d_attach_adapter(struct i2c_adapter *adapter);
 302 static int w83792d_detect(struct i2c_adapter *adapter, int address, int kind);
 303 static int w83792d_detach_client(struct i2c_client *client);
 304 static struct w83792d_data *w83792d_update_device(struct device *dev);
 305
 306 #ifdef DEBUG
 307 static void w83792d_print_debug(struct w83792d_data *data, struct device *dev);
 308 #endif
 309
 310 static void w83792d_init_client(struct i2c_client *client);
 311
 312 static struct i2c_driver w83792d_driver = {
 313         .driver = {
 314                 .name = "w83792d",
 315         },
 316         .attach_adapter = w83792d_attach_adapter,
 317         .detach_client = w83792d_detach_client,
 318 };
 319
 320 static inline long in_count_from_reg(int nr, struct w83792d_data *data)
 321 {
 322         /* in7 and in8 do not have low bits, but the formula still works */
 323         return ((data->in[nr] << 2) | ((data->low_bits >> (2 * nr)) & 0x03));
 324 }
 325
 326 /* The SMBus locks itself. The Winbond W83792D chip has a bank register,
 327    but the driver only accesses registers in bank 0, so we don't have
 328    to switch banks and lock access between switches. */
 329 static inline int w83792d_read_value(struct i2c_client *client, u8 reg)
 330 {
 331         return i2c_smbus_read_byte_data(client, reg);
 332 }
 333
 334 static inline int
 335 w83792d_write_value(struct i2c_client *client, u8 reg, u8 value)
 336 {
 337         return i2c_smbus_write_byte_data(client, reg, value);
 338 }
 339
 340 /* following are the sysfs callback functions */
 341 static ssize_t show_in(struct device *dev, struct device_attribute *attr,
 342                         char *buf)
 343 {
 344         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 345         int nr = sensor_attr->index;
 346         struct w83792d_data *data = w83792d_update_device(dev);
 347         return sprintf(buf,"%ld\n", IN_FROM_REG(nr,(in_count_from_reg(nr, data))));
 348 }
 349
 350 #define show_in_reg(reg) \
 351 static ssize_t show_##reg(struct device *dev, struct device_attribute *attr, \
 352                         char *buf) \
 353 { \
 354         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
 355         int nr = sensor_attr->index; \
 356         struct w83792d_data *data = w83792d_update_device(dev); \
 357         return sprintf(buf,"%ld\n", (long)(IN_FROM_REG(nr, (data->reg[nr])*4))); \
 358 }
 359
 360 show_in_reg(in_min);
 361 show_in_reg(in_max);
 362
 363 #define store_in_reg(REG, reg) \
 364 static ssize_t store_in_##reg (struct device *dev, \
 365                                 struct device_attribute *attr, \
 366                                 const char *buf, size_t count) \
 367 { \
 368         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
 369         int nr = sensor_attr->index; \
 370         struct i2c_client *client = to_i2c_client(dev); \
 371         struct w83792d_data *data = i2c_get_clientdata(client); \
 372         u32 val; \
 373          \
 374         val = simple_strtoul(buf, NULL, 10); \
 375         mutex_lock(&data->update_lock); \
 376         data->in_##reg[nr] = SENSORS_LIMIT(IN_TO_REG(nr, val)/4, 0, 255); \
 377         w83792d_write_value(client, W83792D_REG_IN_##REG[nr], data->in_##reg[nr]); \
 378         mutex_unlock(&data->update_lock); \
 379          \
 380         return count; \
 381 }
 382 store_in_reg(MIN, min);
 383 store_in_reg(MAX, max);
 384
 385 #define show_fan_reg(reg) \
 386 static ssize_t show_##reg (struct device *dev, struct device_attribute *attr, \
 387                         char *buf) \
 388 { \
 389         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); \
 390         int nr = sensor_attr->index - 1; \
 391         struct w83792d_data *data = w83792d_update_device(dev); \
 392         return sprintf(buf,"%d\n", \
 393                 FAN_FROM_REG(data->reg[nr], DIV_FROM_REG(data->fan_div[nr]))); \
 394 }
 395
 396 show_fan_reg(fan);
 397 show_fan_reg(fan_min);
 398
 399 static ssize_t
 400 store_fan_min(struct device *dev, struct device_attribute *attr,
 401                 const char *buf, size_t count)
 402 {
 403         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 404         int nr = sensor_attr->index - 1;
 405         struct i2c_client *client = to_i2c_client(dev);
 406         struct w83792d_data *data = i2c_get_clientdata(client);
 407         u32 val;
 408
 409         val = simple_strtoul(buf, NULL, 10);
 410         mutex_lock(&data->update_lock);
 411         data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr]));
 412         w83792d_write_value(client, W83792D_REG_FAN_MIN[nr],
 413                                 data->fan_min[nr]);
 414         mutex_unlock(&data->update_lock);
 415
 416         return count;
 417 }
 418
 419 static ssize_t
 420 show_fan_div(struct device *dev, struct device_attribute *attr,
 421                 char *buf)
 422 {
 423         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 424         int nr = sensor_attr->index;
 425         struct w83792d_data *data = w83792d_update_device(dev);
 426         return sprintf(buf, "%u\n", DIV_FROM_REG(data->fan_div[nr - 1]));
 427 }
 428
 429 /* Note: we save and restore the fan minimum here, because its value is
 430    determined in part by the fan divisor.  This follows the principle of
 431    least surprise; the user doesn't expect the fan minimum to change just
 432    because the divisor changed. */
 433 static ssize_t
 434 store_fan_div(struct device *dev, struct device_attribute *attr,
 435                 const char *buf, size_t count)
 436 {
 437         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 438         int nr = sensor_attr->index - 1;
 439         struct i2c_client *client = to_i2c_client(dev);
 440         struct w83792d_data *data = i2c_get_clientdata(client);
 441         unsigned long min;
 442         /*u8 reg;*/
 443         u8 fan_div_reg = 0;
 444         u8 tmp_fan_div;
 445
 446         /* Save fan_min */
 447         mutex_lock(&data->update_lock);
 448         min = FAN_FROM_REG(data->fan_min[nr],
 449                            DIV_FROM_REG(data->fan_div[nr]));
 450
 451         data->fan_div[nr] = DIV_TO_REG(simple_strtoul(buf, NULL, 10));
 452
 453         fan_div_reg = w83792d_read_value(client, W83792D_REG_FAN_DIV[nr >> 1]);
 454         fan_div_reg &= (nr & 0x01) ? 0x8f : 0xf8;
 455         tmp_fan_div = (nr & 0x01) ? (((data->fan_div[nr]) << 4) & 0x70)
 456                                         : ((data->fan_div[nr]) & 0x07);
 457         w83792d_write_value(client, W83792D_REG_FAN_DIV[nr >> 1],
 458                                         fan_div_reg | tmp_fan_div);
 459
 460         /* Restore fan_min */
 461         data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr]));
 462         w83792d_write_value(client, W83792D_REG_FAN_MIN[nr], data->fan_min[nr]);
 463         mutex_unlock(&data->update_lock);
 464
 465         return count;
 466 }
 467
 468 /* read/write the temperature1, includes measured value and limits */
 469
 470 static ssize_t show_temp1(struct device *dev, struct device_attribute *attr,
 471                                 char *buf)
 472 {
 473         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 474         int nr = sensor_attr->index;
 475         struct w83792d_data *data = w83792d_update_device(dev);
 476         return sprintf(buf, "%d\n", TEMP1_FROM_REG(data->temp1[nr]));
 477 }
 478
 479 static ssize_t store_temp1(struct device *dev, struct device_attribute *attr,
 480                                 const char *buf, size_t count)
 481 {
 482         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 483         int nr = sensor_attr->index;
 484         struct i2c_client *client = to_i2c_client(dev);
 485         struct w83792d_data *data = i2c_get_clientdata(client);
 486         s32 val;
 487
 488         val = simple_strtol(buf, NULL, 10);
 489         mutex_lock(&data->update_lock);
 490         data->temp1[nr] = TEMP1_TO_REG(val);
 491         w83792d_write_value(client, W83792D_REG_TEMP1[nr],
 492                 data->temp1[nr]);
 493         mutex_unlock(&data->update_lock);
 494
 495         return count;
 496 }
 497
 498 /* read/write the temperature2-3, includes measured value and limits */
 499
 500 static ssize_t show_temp23(struct device *dev, struct device_attribute *attr,
 501                                 char *buf)
 502 {
 503         struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
 504         int nr = sensor_attr->nr;
 505         int index = sensor_attr->index;
 506         struct w83792d_data *data = w83792d_update_device(dev);
 507         return sprintf(buf,"%ld\n",
 508                 (long)TEMP_ADD_FROM_REG(data->temp_add[nr][index],
 509                         data->temp_add[nr][index+1]));
 510 }
 511
 512 static ssize_t store_temp23(struct device *dev, struct device_attribute *attr,
 513                                 const char *buf, size_t count)
 514 {
 515         struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
 516         int nr = sensor_attr->nr;
 517         int index = sensor_attr->index;
 518         struct i2c_client *client = to_i2c_client(dev);
 519         struct w83792d_data *data = i2c_get_clientdata(client);
 520         s32 val;
 521
 522         val = simple_strtol(buf, NULL, 10);
 523         mutex_lock(&data->update_lock);
 524         data->temp_add[nr][index] = TEMP_ADD_TO_REG_HIGH(val);
 525         data->temp_add[nr][index+1] = TEMP_ADD_TO_REG_LOW(val);
 526         w83792d_write_value(client, W83792D_REG_TEMP_ADD[nr][index],
 527                 data->temp_add[nr][index]);
 528         w83792d_write_value(client, W83792D_REG_TEMP_ADD[nr][index+1],
 529                 data->temp_add[nr][index+1]);
 530         mutex_unlock(&data->update_lock);
 531
 532         return count;
 533 }
 534
 535 /* get reatime status of all sensors items: voltage, temp, fan */
 536 static ssize_t
 537 show_alarms_reg(struct device *dev, struct device_attribute *attr, char *buf)
 538 {
 539         struct w83792d_data *data = w83792d_update_device(dev);
 540         return sprintf(buf, "%d\n", data->alarms);
 541 }
 542
 543 static ssize_t
 544 show_pwm(struct device *dev, struct device_attribute *attr,
 545                 char *buf)
 546 {
 547         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 548         int nr = sensor_attr->index;
 549         struct w83792d_data *data = w83792d_update_device(dev);
 550         return sprintf(buf, "%d\n", (data->pwm[nr] & 0x0f) << 4);
 551 }
 552
 553 static ssize_t
 554 show_pwmenable(struct device *dev, struct device_attribute *attr,
 555                         char *buf)
 556 {
 557         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 558         int nr = sensor_attr->index - 1;
 559         struct w83792d_data *data = w83792d_update_device(dev);
 560         long pwm_enable_tmp = 1;
 561
 562         switch (data->pwmenable[nr]) {
 563         case 0:
 564                 pwm_enable_tmp = 1; /* manual mode */
 565                 break;
 566         case 1:
 567                 pwm_enable_tmp = 3; /*thermal cruise/Smart Fan I */
 568                 break;
 569         case 2:
 570                 pwm_enable_tmp = 2; /* Smart Fan II */
 571                 break;
 572         }
 573
 574         return sprintf(buf, "%ld\n", pwm_enable_tmp);
 575 }
 576
 577 static ssize_t
 578 store_pwm(struct device *dev, struct device_attribute *attr,
 579                 const char *buf, size_t count)
 580 {
 581         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 582         int nr = sensor_attr->index;
 583         struct i2c_client *client = to_i2c_client(dev);
 584         struct w83792d_data *data = i2c_get_clientdata(client);
 585         u8 val = SENSORS_LIMIT(simple_strtoul(buf, NULL, 10), 0, 255) >> 4;
 586
 587         mutex_lock(&data->update_lock);
 588         val |= w83792d_read_value(client, W83792D_REG_PWM[nr]) & 0xf0;
 589         data->pwm[nr] = val;
 590         w83792d_write_value(client, W83792D_REG_PWM[nr], data->pwm[nr]);
 591         mutex_unlock(&data->update_lock);
 592
 593         return count;
 594 }
 595
 596 static ssize_t
 597 store_pwmenable(struct device *dev, struct device_attribute *attr,
 598                         const char *buf, size_t count)
 599 {
 600         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 601         int nr = sensor_attr->index - 1;
 602         struct i2c_client *client = to_i2c_client(dev);
 603         struct w83792d_data *data = i2c_get_clientdata(client);
 604         u32 val;
 605         u8 fan_cfg_tmp, cfg1_tmp, cfg2_tmp, cfg3_tmp, cfg4_tmp;
 606
 607         val = simple_strtoul(buf, NULL, 10);
 608         if (val < 1 || val > 3)
 609                 return -EINVAL;
 610
 611         mutex_lock(&data->update_lock);
 612         switch (val) {
 613         case 1:
 614                 data->pwmenable[nr] = 0; /* manual mode */
 615                 break;
 616         case 2:
 617                 data->pwmenable[nr] = 2; /* Smart Fan II */
 618                 break;
 619         case 3:
 620                 data->pwmenable[nr] = 1; /* thermal cruise/Smart Fan I */
 621                 break;
 622         }
 623         cfg1_tmp = data->pwmenable[0];
 624         cfg2_tmp = (data->pwmenable[1]) << 2;
 625         cfg3_tmp = (data->pwmenable[2]) << 4;
 626         cfg4_tmp = w83792d_read_value(client,W83792D_REG_FAN_CFG) & 0xc0;
 627         fan_cfg_tmp = ((cfg4_tmp | cfg3_tmp) | cfg2_tmp) | cfg1_tmp;
 628         w83792d_write_value(client, W83792D_REG_FAN_CFG, fan_cfg_tmp);
 629         mutex_unlock(&data->update_lock);
 630
 631         return count;
 632 }
 633
 634 static ssize_t
 635 show_pwm_mode(struct device *dev, struct device_attribute *attr,
 636                         char *buf)
 637 {
 638         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 639         int nr = sensor_attr->index;
 640         struct w83792d_data *data = w83792d_update_device(dev);
 641         return sprintf(buf, "%d\n", data->pwm[nr] >> 7);
 642 }
 643
 644 static ssize_t
 645 store_pwm_mode(struct device *dev, struct device_attribute *attr,
 646                         const char *buf, size_t count)
 647 {
 648         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 649         int nr = sensor_attr->index;
 650         struct i2c_client *client = to_i2c_client(dev);
 651         struct w83792d_data *data = i2c_get_clientdata(client);
 652         u32 val;
 653
 654         val = simple_strtoul(buf, NULL, 10);
 655         if (val != 0 && val != 1)
 656                 return -EINVAL;
 657
 658         mutex_lock(&data->update_lock);
 659         data->pwm[nr] = w83792d_read_value(client, W83792D_REG_PWM[nr]);
 660         if (val) {                      /* PWM mode */
 661                 data->pwm[nr] |= 0x80;
 662         } else {                        /* DC mode */
 663                 data->pwm[nr] &= 0x7f;
 664         }
 665         w83792d_write_value(client, W83792D_REG_PWM[nr], data->pwm[nr]);
 666         mutex_unlock(&data->update_lock);
 667
 668         return count;
 669 }
 670
 671 static ssize_t
 672 show_regs_chassis(struct device *dev, struct device_attribute *attr,
 673                         char *buf)
 674 {
 675         struct w83792d_data *data = w83792d_update_device(dev);
 676         return sprintf(buf, "%d\n", data->chassis);
 677 }
 678
 679 static ssize_t
 680 show_chassis_clear(struct device *dev, struct device_attribute *attr, char *buf)
 681 {
 682         struct w83792d_data *data = w83792d_update_device(dev);
 683         return sprintf(buf, "%d\n", data->chassis_clear);
 684 }
 685
 686 static ssize_t
 687 store_chassis_clear(struct device *dev, struct device_attribute *attr,
 688                         const char *buf, size_t count)
 689 {
 690         struct i2c_client *client = to_i2c_client(dev);
 691         struct w83792d_data *data = i2c_get_clientdata(client);
 692         u32 val;
 693         u8 temp1 = 0, temp2 = 0;
 694
 695         val = simple_strtoul(buf, NULL, 10);
 696         mutex_lock(&data->update_lock);
 697         data->chassis_clear = SENSORS_LIMIT(val, 0 ,1);
 698         temp1 = ((data->chassis_clear) << 7) & 0x80;
 699         temp2 = w83792d_read_value(client,
 700                 W83792D_REG_CHASSIS_CLR) & 0x7f;
 701         w83792d_write_value(client, W83792D_REG_CHASSIS_CLR, temp1 | temp2);
 702         mutex_unlock(&data->update_lock);
 703
 704         return count;
 705 }
 706
 707 /* For Smart Fan I / Thermal Cruise */
 708 static ssize_t
 709 show_thermal_cruise(struct device *dev, struct device_attribute *attr,
 710                         char *buf)
 711 {
 712         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 713         int nr = sensor_attr->index;
 714         struct w83792d_data *data = w83792d_update_device(dev);
 715         return sprintf(buf, "%ld\n", (long)data->thermal_cruise[nr-1]);
 716 }
 717
 718 static ssize_t
 719 store_thermal_cruise(struct device *dev, struct device_attribute *attr,
 720                         const char *buf, size_t count)
 721 {
 722         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 723         int nr = sensor_attr->index - 1;
 724         struct i2c_client *client = to_i2c_client(dev);
 725         struct w83792d_data *data = i2c_get_clientdata(client);
 726         u32 val;
 727         u8 target_tmp=0, target_mask=0;
 728
 729         val = simple_strtoul(buf, NULL, 10);
 730         target_tmp = val;
 731         target_tmp = target_tmp & 0x7f;
 732         mutex_lock(&data->update_lock);
 733         target_mask = w83792d_read_value(client, W83792D_REG_THERMAL[nr]) & 0x80;
 734         data->thermal_cruise[nr] = SENSORS_LIMIT(target_tmp, 0, 255);
 735         w83792d_write_value(client, W83792D_REG_THERMAL[nr],
 736                 (data->thermal_cruise[nr]) | target_mask);
 737         mutex_unlock(&data->update_lock);
 738
 739         return count;
 740 }
 741
 742 /* For Smart Fan I/Thermal Cruise and Smart Fan II */
 743 static ssize_t
 744 show_tolerance(struct device *dev, struct device_attribute *attr,
 745                 char *buf)
 746 {
 747         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 748         int nr = sensor_attr->index;
 749         struct w83792d_data *data = w83792d_update_device(dev);
 750         return sprintf(buf, "%ld\n", (long)data->tolerance[nr-1]);
 751 }
 752
 753 static ssize_t
 754 store_tolerance(struct device *dev, struct device_attribute *attr,
 755                 const char *buf, size_t count)
 756 {
 757         struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr);
 758         int nr = sensor_attr->index - 1;
 759         struct i2c_client *client = to_i2c_client(dev);
 760         struct w83792d_data *data = i2c_get_clientdata(client);
 761         u32 val;
 762         u8 tol_tmp, tol_mask;
 763
 764         val = simple_strtoul(buf, NULL, 10);
 765         mutex_lock(&data->update_lock);
 766         tol_mask = w83792d_read_value(client,
 767                 W83792D_REG_TOLERANCE[nr]) & ((nr == 1) ? 0x0f : 0xf0);
 768         tol_tmp = SENSORS_LIMIT(val, 0, 15);
 769         tol_tmp &= 0x0f;
 770         data->tolerance[nr] = tol_tmp;
 771         if (nr == 1) {
 772                 tol_tmp <<= 4;
 773         }
 774         w83792d_write_value(client, W83792D_REG_TOLERANCE[nr],
 775                 tol_mask | tol_tmp);
 776         mutex_unlock(&data->update_lock);
 777
 778         return count;
 779 }
 780
 781 /* For Smart Fan II */
 782 static ssize_t
 783 show_sf2_point(struct device *dev, struct device_attribute *attr,
 784                 char *buf)
 785 {
 786         struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
 787         int nr = sensor_attr->nr;
 788         int index = sensor_attr->index;
 789         struct w83792d_data *data = w83792d_update_device(dev);
 790         return sprintf(buf, "%ld\n", (long)data->sf2_points[index-1][nr-1]);
 791 }
 792
 793 static ssize_t
 794 store_sf2_point(struct device *dev, struct device_attribute *attr,
 795                 const char *buf, size_t count)
 796 {
 797         struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
 798         int nr = sensor_attr->nr - 1;
 799         int index = sensor_attr->index - 1;
 800         struct i2c_client *client = to_i2c_client(dev);
 801         struct w83792d_data *data = i2c_get_clientdata(client);
 802         u32 val;
 803         u8 mask_tmp = 0;
 804
 805         val = simple_strtoul(buf, NULL, 10);
 806         mutex_lock(&data->update_lock);
 807         data->sf2_points[index][nr] = SENSORS_LIMIT(val, 0, 127);
 808         mask_tmp = w83792d_read_value(client,
 809                                         W83792D_REG_POINTS[index][nr]) & 0x80;
 810         w83792d_write_value(client, W83792D_REG_POINTS[index][nr],
 811                 mask_tmp|data->sf2_points[index][nr]);
 812         mutex_unlock(&data->update_lock);
 813
 814         return count;
 815 }
 816
 817 static ssize_t
 818 show_sf2_level(struct device *dev, struct device_attribute *attr,
 819                 char *buf)
 820 {
 821         struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
 822         int nr = sensor_attr->nr;
 823         int index = sensor_attr->index;
 824         struct w83792d_data *data = w83792d_update_device(dev);
 825         return sprintf(buf, "%d\n",
 826                         (((data->sf2_levels[index-1][nr]) * 100) / 15));
 827 }
 828
 829 static ssize_t
 830 store_sf2_level(struct device *dev, struct device_attribute *attr,
 831                 const char *buf, size_t count)
 832 {
 833         struct sensor_device_attribute_2 *sensor_attr = to_sensor_dev_attr_2(attr);
 834         int nr = sensor_attr->nr;
 835         int index = sensor_attr->index - 1;
 836         struct i2c_client *client = to_i2c_client(dev);
 837         struct w83792d_data *data = i2c_get_clientdata(client);
 838         u32 val;
 839         u8 mask_tmp=0, level_tmp=0;
 840
 841         val = simple_strtoul(buf, NULL, 10);
 842         mutex_lock(&data->update_lock);
 843         data->sf2_levels[index][nr] = SENSORS_LIMIT((val * 15) / 100, 0, 15);
 844         mask_tmp = w83792d_read_value(client, W83792D_REG_LEVELS[index][nr])
 845                 & ((nr==3) ? 0xf0 : 0x0f);
 846         if (nr==3) {
 847                 level_tmp = data->sf2_levels[index][nr];
 848         } else {
 849                 level_tmp = data->sf2_levels[index][nr] << 4;
 850         }
 851         w83792d_write_value(client, W83792D_REG_LEVELS[index][nr], level_tmp | mask_tmp);
 852         mutex_unlock(&data->update_lock);
 853
 854         return count;
 855 }
 856
 857 /* This function is called when:
 858      * w83792d_driver is inserted (when this module is loaded), for each
 859        available adapter
 860      * when a new adapter is inserted (and w83792d_driver is still present) */
 861 static int
 862 w83792d_attach_adapter(struct i2c_adapter *adapter)
 863 {
 864         if (!(adapter->class & I2C_CLASS_HWMON))
 865                 return 0;
 866         return i2c_probe(adapter, &addr_data, w83792d_detect);
 867 }
 868
 869
 870 static int
 871 w83792d_create_subclient(struct i2c_adapter *adapter,
 872                                 struct i2c_client *new_client, int addr,
 873                                 struct i2c_client **sub_cli)
 874 {
 875         int err;
 876         struct i2c_client *sub_client;
 877
 878         (*sub_cli) = sub_client = kzalloc(sizeof(struct i2c_client), GFP_KERNEL);
 879         if (!(sub_client)) {
 880                 return -ENOMEM;
 881         }
 882         sub_client->addr = 0x48 + addr;
 883         i2c_set_clientdata(sub_client, NULL);
 884         sub_client->adapter = adapter;
 885         sub_client->driver = &w83792d_driver;
 886         sub_client->flags = 0;
 887         strlcpy(sub_client->name, "w83792d subclient", I2C_NAME_SIZE);
 888         if ((err = i2c_attach_client(sub_client))) {
 889                 dev_err(&new_client->dev, "subclient registration "
 890                         "at address 0x%x failed\n", sub_client->addr);
 891                 kfree(sub_client);
 892                 return err;
 893         }
 894         return 0;
 895 }
 896
 897
 898 static int
 899 w83792d_detect_subclients(struct i2c_adapter *adapter, int address, int kind,
 900                 struct i2c_client *new_client)
 901 {
 902         int i, id, err;
 903         u8 val;
 904         struct w83792d_data *data = i2c_get_clientdata(new_client);
 905
 906         id = i2c_adapter_id(adapter);
 907         if (force_subclients[0] == id && force_subclients[1] == address) {
 908                 for (i = 2; i <= 3; i++) {
 909                         if (force_subclients[i] < 0x48 ||
 910                             force_subclients[i] > 0x4f) {
 911                                 dev_err(&new_client->dev, "invalid subclient "
 912                                         "address %d; must be 0x48-0x4f\n",
 913                                         force_subclients[i]);
 914                                 err = -ENODEV;
 915                                 goto ERROR_SC_0;
 916                         }
 917                 }
 918                 w83792d_write_value(new_client, W83792D_REG_I2C_SUBADDR,
 919                                         (force_subclients[2] & 0x07) |
 920                                         ((force_subclients[3] & 0x07) << 4));
 921         }
 922
 923         val = w83792d_read_value(new_client, W83792D_REG_I2C_SUBADDR);
 924         if (!(val & 0x08)) {
 925                 err = w83792d_create_subclient(adapter, new_client, val & 0x7,
 926                                                 &data->lm75[0]);
 927                 if (err < 0)
 928                         goto ERROR_SC_0;
 929         }
 930         if (!(val & 0x80)) {
 931                 if ((data->lm75[0] != NULL) &&
 932                         ((val & 0x7) == ((val >> 4) & 0x7))) {
 933                         dev_err(&new_client->dev, "duplicate addresses 0x%x, "
 934                                 "use force_subclient\n", data->lm75[0]->addr);
 935                         err = -ENODEV;
 936                         goto ERROR_SC_1;
 937                 }
 938                 err = w83792d_create_subclient(adapter, new_client,
 939                                                 (val >> 4) & 0x7, &data->lm75[1]);
 940                 if (err < 0)
 941                         goto ERROR_SC_1;
 942         }
 943
 944         return 0;
 945
 946 /* Undo inits in case of errors */
 947
 948 ERROR_SC_1:
 949         if (data->lm75[0] != NULL) {
 950                 i2c_detach_client(data->lm75[0]);
 951                 kfree(data->lm75[0]);
 952         }
 953 ERROR_SC_0:
 954         return err;
 955 }
 956
 957 static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, show_in, NULL, 0);
 958 static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_in, NULL, 1);
 959 static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_in, NULL, 2);
 960 static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, show_in, NULL, 3);
 961 static SENSOR_DEVICE_ATTR(in4_input, S_IRUGO, show_in, NULL, 4);
 962 static SENSOR_DEVICE_ATTR(in5_input, S_IRUGO, show_in, NULL, 5);
 963 static SENSOR_DEVICE_ATTR(in6_input, S_IRUGO, show_in, NULL, 6);
 964 static SENSOR_DEVICE_ATTR(in7_input, S_IRUGO, show_in, NULL, 7);
 965 static SENSOR_DEVICE_ATTR(in8_input, S_IRUGO, show_in, NULL, 8);
 966 static SENSOR_DEVICE_ATTR(in0_min, S_IWUSR | S_IRUGO,
 967                         show_in_min, store_in_min, 0);
 968 static SENSOR_DEVICE_ATTR(in1_min, S_IWUSR | S_IRUGO,
 969                         show_in_min, store_in_min, 1);
 970 static SENSOR_DEVICE_ATTR(in2_min, S_IWUSR | S_IRUGO,
 971                         show_in_min, store_in_min, 2);
 972 static SENSOR_DEVICE_ATTR(in3_min, S_IWUSR | S_IRUGO,
 973                         show_in_min, store_in_min, 3);
 974 static SENSOR_DEVICE_ATTR(in4_min, S_IWUSR | S_IRUGO,
 975                         show_in_min, store_in_min, 4);
 976 static SENSOR_DEVICE_ATTR(in5_min, S_IWUSR | S_IRUGO,
 977                         show_in_min, store_in_min, 5);
 978 static SENSOR_DEVICE_ATTR(in6_min, S_IWUSR | S_IRUGO,
 979                         show_in_min, store_in_min, 6);
 980 static SENSOR_DEVICE_ATTR(in7_min, S_IWUSR | S_IRUGO,
 981                         show_in_min, store_in_min, 7);
 982 static SENSOR_DEVICE_ATTR(in8_min, S_IWUSR | S_IRUGO,
 983                         show_in_min, store_in_min, 8);
 984 static SENSOR_DEVICE_ATTR(in0_max, S_IWUSR | S_IRUGO,
 985                         show_in_max, store_in_max, 0);
 986 static SENSOR_DEVICE_ATTR(in1_max, S_IWUSR | S_IRUGO,
 987                         show_in_max, store_in_max, 1);
 988 static SENSOR_DEVICE_ATTR(in2_max, S_IWUSR | S_IRUGO,
 989                         show_in_max, store_in_max, 2);
 990 static SENSOR_DEVICE_ATTR(in3_max, S_IWUSR | S_IRUGO,
 991                         show_in_max, store_in_max, 3);
 992 static SENSOR_DEVICE_ATTR(in4_max, S_IWUSR | S_IRUGO,
 993                         show_in_max, store_in_max, 4);
 994 static SENSOR_DEVICE_ATTR(in5_max, S_IWUSR | S_IRUGO,
 995                         show_in_max, store_in_max, 5);
 996 static SENSOR_DEVICE_ATTR(in6_max, S_IWUSR | S_IRUGO,
 997                         show_in_max, store_in_max, 6);
 998 static SENSOR_DEVICE_ATTR(in7_max, S_IWUSR | S_IRUGO,
 999                         show_in_max, store_in_max, 7);
1000 static SENSOR_DEVICE_ATTR(in8_max, S_IWUSR | S_IRUGO,
1001                         show_in_max, store_in_max, 8);
1002 static SENSOR_DEVICE_ATTR_2(temp1_input, S_IRUGO, show_temp1, NULL, 0, 0);
1003 static SENSOR_DEVICE_ATTR_2(temp2_input, S_IRUGO, show_temp23, NULL, 0, 0);
1004 static SENSOR_DEVICE_ATTR_2(temp3_input, S_IRUGO, show_temp23, NULL, 1, 0);
1005 static SENSOR_DEVICE_ATTR_2(temp1_max, S_IRUGO | S_IWUSR,
1006                         show_temp1, store_temp1, 0, 1);
1007 static SENSOR_DEVICE_ATTR_2(temp2_max, S_IRUGO | S_IWUSR, show_temp23,
1008                         store_temp23, 0, 2);
1009 static SENSOR_DEVICE_ATTR_2(temp3_max, S_IRUGO | S_IWUSR, show_temp23,
1010                         store_temp23, 1, 2);
1011 static SENSOR_DEVICE_ATTR_2(temp1_max_hyst, S_IRUGO | S_IWUSR,
1012                         show_temp1, store_temp1, 0, 2);
1013 static SENSOR_DEVICE_ATTR_2(temp2_max_hyst, S_IRUGO | S_IWUSR,
1014                         show_temp23, store_temp23, 0, 4);
1015 static SENSOR_DEVICE_ATTR_2(temp3_max_hyst, S_IRUGO | S_IWUSR,
1016                         show_temp23, store_temp23, 1, 4);
1017 static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL);
1018 static DEVICE_ATTR(chassis, S_IRUGO, show_regs_chassis, NULL);
1019 static DEVICE_ATTR(chassis_clear, S_IRUGO | S_IWUSR,
1020                         show_chassis_clear, store_chassis_clear);
1021 static SENSOR_DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 0);
1022 static SENSOR_DEVICE_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 1);
1023 static SENSOR_DEVICE_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, store_pwm, 2);
1024 static SENSOR_DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO,
1025                         show_pwmenable, store_pwmenable, 1);
1026 static SENSOR_DEVICE_ATTR(pwm2_enable, S_IWUSR | S_IRUGO,
1027                         show_pwmenable, store_pwmenable, 2);
1028 static SENSOR_DEVICE_ATTR(pwm3_enable, S_IWUSR | S_IRUGO,
1029                         show_pwmenable, store_pwmenable, 3);
1030 static SENSOR_DEVICE_ATTR(pwm1_mode, S_IWUSR | S_IRUGO,
1031                         show_pwm_mode, store_pwm_mode, 0);
1032 static SENSOR_DEVICE_ATTR(pwm2_mode, S_IWUSR | S_IRUGO,
1033                         show_pwm_mode, store_pwm_mode, 1);
1034 static SENSOR_DEVICE_ATTR(pwm3_mode, S_IWUSR | S_IRUGO,
1035                         show_pwm_mode, store_pwm_mode, 2);
1036 static SENSOR_DEVICE_ATTR(tolerance1, S_IWUSR | S_IRUGO,
1037                         show_tolerance, store_tolerance, 1);
1038 static SENSOR_DEVICE_ATTR(tolerance2, S_IWUSR | S_IRUGO,
1039                         show_tolerance, store_tolerance, 2);
1040 static SENSOR_DEVICE_ATTR(tolerance3, S_IWUSR | S_IRUGO,
1041                         show_tolerance, store_tolerance, 3);
1042 static SENSOR_DEVICE_ATTR(thermal_cruise1, S_IWUSR | S_IRUGO,
1043                         show_thermal_cruise, store_thermal_cruise, 1);
1044 static SENSOR_DEVICE_ATTR(thermal_cruise2, S_IWUSR | S_IRUGO,
1045                         show_thermal_cruise, store_thermal_cruise, 2);
1046 static SENSOR_DEVICE_ATTR(thermal_cruise3, S_IWUSR | S_IRUGO,
1047                         show_thermal_cruise, store_thermal_cruise, 3);
1048 static SENSOR_DEVICE_ATTR_2(sf2_point1_fan1, S_IRUGO | S_IWUSR,
1049                         show_sf2_point, store_sf2_point, 1, 1);
1050 static SENSOR_DEVICE_ATTR_2(sf2_point2_fan1, S_IRUGO | S_IWUSR,
1051                         show_sf2_point, store_sf2_point, 2, 1);
1052 static SENSOR_DEVICE_ATTR_2(sf2_point3_fan1, S_IRUGO | S_IWUSR,
1053                         show_sf2_point, store_sf2_point, 3, 1);
1054 static SENSOR_DEVICE_ATTR_2(sf2_point4_fan1, S_IRUGO | S_IWUSR,
1055                         show_sf2_point, store_sf2_point, 4, 1);
1056 static SENSOR_DEVICE_ATTR_2(sf2_point1_fan2, S_IRUGO | S_IWUSR,
1057                         show_sf2_point, store_sf2_point, 1, 2);
1058 static SENSOR_DEVICE_ATTR_2(sf2_point2_fan2, S_IRUGO | S_IWUSR,
1059                         show_sf2_point, store_sf2_point, 2, 2);
1060 static SENSOR_DEVICE_ATTR_2(sf2_point3_fan2, S_IRUGO | S_IWUSR,
1061                         show_sf2_point, store_sf2_point, 3, 2);
1062 static SENSOR_DEVICE_ATTR_2(sf2_point4_fan2, S_IRUGO | S_IWUSR,
1063                         show_sf2_point, store_sf2_point, 4, 2);
1064 static SENSOR_DEVICE_ATTR_2(sf2_point1_fan3, S_IRUGO | S_IWUSR,
1065                         show_sf2_point, store_sf2_point, 1, 3);
1066 static SENSOR_DEVICE_ATTR_2(sf2_point2_fan3, S_IRUGO | S_IWUSR,
1067                         show_sf2_point, store_sf2_point, 2, 3);
1068 static SENSOR_DEVICE_ATTR_2(sf2_point3_fan3, S_IRUGO | S_IWUSR,
1069                         show_sf2_point, store_sf2_point, 3, 3);
1070 static SENSOR_DEVICE_ATTR_2(sf2_point4_fan3, S_IRUGO | S_IWUSR,
1071                         show_sf2_point, store_sf2_point, 4, 3);
1072 static SENSOR_DEVICE_ATTR_2(sf2_level1_fan1, S_IRUGO | S_IWUSR,
1073                         show_sf2_level, store_sf2_level, 1, 1);
1074 static SENSOR_DEVICE_ATTR_2(sf2_level2_fan1, S_IRUGO | S_IWUSR,
1075                         show_sf2_level, store_sf2_level, 2, 1);
1076 static SENSOR_DEVICE_ATTR_2(sf2_level3_fan1, S_IRUGO | S_IWUSR,
1077                         show_sf2_level, store_sf2_level, 3, 1);
1078 static SENSOR_DEVICE_ATTR_2(sf2_level1_fan2, S_IRUGO | S_IWUSR,
1079                         show_sf2_level, store_sf2_level, 1, 2);
1080 static SENSOR_DEVICE_ATTR_2(sf2_level2_fan2, S_IRUGO | S_IWUSR,
1081                         show_sf2_level, store_sf2_level, 2, 2);
1082 static SENSOR_DEVICE_ATTR_2(sf2_level3_fan2, S_IRUGO | S_IWUSR,
1083                         show_sf2_level, store_sf2_level, 3, 2);
1084 static SENSOR_DEVICE_ATTR_2(sf2_level1_fan3, S_IRUGO | S_IWUSR,
1085                         show_sf2_level, store_sf2_level, 1, 3);
1086 static SENSOR_DEVICE_ATTR_2(sf2_level2_fan3, S_IRUGO | S_IWUSR,
1087                         show_sf2_level, store_sf2_level, 2, 3);
1088 static SENSOR_DEVICE_ATTR_2(sf2_level3_fan3, S_IRUGO | S_IWUSR,
1089                         show_sf2_level, store_sf2_level, 3, 3);
1090 static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 1);
1091 static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 2);
1092 static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 3);
1093 static SENSOR_DEVICE_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 4);
1094 static SENSOR_DEVICE_ATTR(fan5_input, S_IRUGO, show_fan, NULL, 5);
1095 static SENSOR_DEVICE_ATTR(fan6_input, S_IRUGO, show_fan, NULL, 6);
1096 static SENSOR_DEVICE_ATTR(fan7_input, S_IRUGO, show_fan, NULL, 7);
1097 static SENSOR_DEVICE_ATTR(fan1_min, S_IWUSR | S_IRUGO,
1098                         show_fan_min, store_fan_min, 1);
1099 static SENSOR_DEVICE_ATTR(fan2_min, S_IWUSR | S_IRUGO,
1100                         show_fan_min, store_fan_min, 2);
1101 static SENSOR_DEVICE_ATTR(fan3_min, S_IWUSR | S_IRUGO,
1102                         show_fan_min, store_fan_min, 3);
1103 static SENSOR_DEVICE_ATTR(fan4_min, S_IWUSR | S_IRUGO,
1104                         show_fan_min, store_fan_min, 4);
1105 static SENSOR_DEVICE_ATTR(fan5_min, S_IWUSR | S_IRUGO,
1106                         show_fan_min, store_fan_min, 5);
1107 static SENSOR_DEVICE_ATTR(fan6_min, S_IWUSR | S_IRUGO,
1108                         show_fan_min, store_fan_min, 6);
1109 static SENSOR_DEVICE_ATTR(fan7_min, S_IWUSR | S_IRUGO,
1110                         show_fan_min, store_fan_min, 7);
1111 static SENSOR_DEVICE_ATTR(fan1_div, S_IWUSR | S_IRUGO,
1112                         show_fan_div, store_fan_div, 1);
1113 static SENSOR_DEVICE_ATTR(fan2_div, S_IWUSR | S_IRUGO,
1114                         show_fan_div, store_fan_div, 2);
1115 static SENSOR_DEVICE_ATTR(fan3_div, S_IWUSR | S_IRUGO,
1116                         show_fan_div, store_fan_div, 3);
1117 static SENSOR_DEVICE_ATTR(fan4_div, S_IWUSR | S_IRUGO,
1118                         show_fan_div, store_fan_div, 4);
1119 static SENSOR_DEVICE_ATTR(fan5_div, S_IWUSR | S_IRUGO,
1120                         show_fan_div, store_fan_div, 5);
1121 static SENSOR_DEVICE_ATTR(fan6_div, S_IWUSR | S_IRUGO,
1122                         show_fan_div, store_fan_div, 6);
1123 static SENSOR_DEVICE_ATTR(fan7_div, S_IWUSR | S_IRUGO,
1124                         show_fan_div, store_fan_div, 7);
1125
1126 static struct attribute *w83792d_attributes_fan[4][4] = {
1127         {
1128                 &sensor_dev_attr_fan4_input.dev_attr.attr,
1129                 &sensor_dev_attr_fan4_min.dev_attr.attr,
1130                 &sensor_dev_attr_fan4_div.dev_attr.attr,
1131                 NULL
1132         }, {
1133                 &sensor_dev_attr_fan5_input.dev_attr.attr,
1134                 &sensor_dev_attr_fan5_min.dev_attr.attr,
1135                 &sensor_dev_attr_fan5_div.dev_attr.attr,
1136                 NULL
1137         }, {
1138                 &sensor_dev_attr_fan6_input.dev_attr.attr,
1139                 &sensor_dev_attr_fan6_min.dev_attr.attr,
1140                 &sensor_dev_attr_fan6_div.dev_attr.attr,
1141                 NULL
1142         }, {
1143                 &sensor_dev_attr_fan7_input.dev_attr.attr,
1144                 &sensor_dev_attr_fan7_min.dev_attr.attr,
1145                 &sensor_dev_attr_fan7_div.dev_attr.attr,
1146                 NULL
1147         }
1148 };
1149
1150 static const struct attribute_group w83792d_group_fan[4] = {
1151         { .attrs = w83792d_attributes_fan[0] },
1152         { .attrs = w83792d_attributes_fan[1] },
1153         { .attrs = w83792d_attributes_fan[2] },
1154         { .attrs = w83792d_attributes_fan[3] },
1155 };
1156
1157 static struct attribute *w83792d_attributes[] = {
1158         &sensor_dev_attr_in0_input.dev_attr.attr,
1159         &sensor_dev_attr_in0_max.dev_attr.attr,
1160         &sensor_dev_attr_in0_min.dev_attr.attr,
1161         &sensor_dev_attr_in1_input.dev_attr.attr,
1162         &sensor_dev_attr_in1_max.dev_attr.attr,
1163         &sensor_dev_attr_in1_min.dev_attr.attr,
1164         &sensor_dev_attr_in2_input.dev_attr.attr,
1165         &sensor_dev_attr_in2_max.dev_attr.attr,
1166         &sensor_dev_attr_in2_min.dev_attr.attr,
1167         &sensor_dev_attr_in3_input.dev_attr.attr,
1168         &sensor_dev_attr_in3_max.dev_attr.attr,
1169         &sensor_dev_attr_in3_min.dev_attr.attr,
1170         &sensor_dev_attr_in4_input.dev_attr.attr,
1171         &sensor_dev_attr_in4_max.dev_attr.attr,
1172         &sensor_dev_attr_in4_min.dev_attr.attr,
1173         &sensor_dev_attr_in5_input.dev_attr.attr,
1174         &sensor_dev_attr_in5_max.dev_attr.attr,
1175         &sensor_dev_attr_in5_min.dev_attr.attr,
1176         &sensor_dev_attr_in6_input.dev_attr.attr,
1177         &sensor_dev_attr_in6_max.dev_attr.attr,
1178         &sensor_dev_attr_in6_min.dev_attr.attr,
1179         &sensor_dev_attr_in7_input.dev_attr.attr,
1180         &sensor_dev_attr_in7_max.dev_attr.attr,
1181         &sensor_dev_attr_in7_min.dev_attr.attr,
1182         &sensor_dev_attr_in8_input.dev_attr.attr,
1183         &sensor_dev_attr_in8_max.dev_attr.attr,
1184         &sensor_dev_attr_in8_min.dev_attr.attr,
1185         &sensor_dev_attr_temp1_input.dev_attr.attr,
1186         &sensor_dev_attr_temp1_max.dev_attr.attr,
1187         &sensor_dev_attr_temp1_max_hyst.dev_attr.attr,
1188         &sensor_dev_attr_temp2_input.dev_attr.attr,
1189         &sensor_dev_attr_temp2_max.dev_attr.attr,
1190         &sensor_dev_attr_temp2_max_hyst.dev_attr.attr,
1191         &sensor_dev_attr_temp3_input.dev_attr.attr,
1192         &sensor_dev_attr_temp3_max.dev_attr.attr,
1193         &sensor_dev_attr_temp3_max_hyst.dev_attr.attr,
1194         &sensor_dev_attr_pwm1.dev_attr.attr,
1195         &sensor_dev_attr_pwm1_mode.dev_attr.attr,
1196         &sensor_dev_attr_pwm1_enable.dev_attr.attr,
1197         &sensor_dev_attr_pwm2.dev_attr.attr,
1198         &sensor_dev_attr_pwm2_mode.dev_attr.attr,
1199         &sensor_dev_attr_pwm2_enable.dev_attr.attr,
1200         &sensor_dev_attr_pwm3.dev_attr.attr,
1201         &sensor_dev_attr_pwm3_mode.dev_attr.attr,
1202         &sensor_dev_attr_pwm3_enable.dev_attr.attr,
1203         &dev_attr_alarms.attr,
1204         &dev_attr_chassis.attr,
1205         &dev_attr_chassis_clear.attr,
1206         &sensor_dev_attr_tolerance1.dev_attr.attr,
1207         &sensor_dev_attr_thermal_cruise1.dev_attr.attr,
1208         &sensor_dev_attr_tolerance2.dev_attr.attr,
1209         &sensor_dev_attr_thermal_cruise2.dev_attr.attr,
1210         &sensor_dev_attr_tolerance3.dev_attr.attr,
1211         &sensor_dev_attr_thermal_cruise3.dev_attr.attr,
1212         &sensor_dev_attr_sf2_point1_fan1.dev_attr.attr,
1213         &sensor_dev_attr_sf2_point2_fan1.dev_attr.attr,
1214         &sensor_dev_attr_sf2_point3_fan1.dev_attr.attr,
1215         &sensor_dev_attr_sf2_point4_fan1.dev_attr.attr,
1216         &sensor_dev_attr_sf2_point1_fan2.dev_attr.attr,
1217         &sensor_dev_attr_sf2_point2_fan2.dev_attr.attr,
1218         &sensor_dev_attr_sf2_point3_fan2.dev_attr.attr,
1219         &sensor_dev_attr_sf2_point4_fan2.dev_attr.attr,
1220         &sensor_dev_attr_sf2_point1_fan3.dev_attr.attr,
1221         &sensor_dev_attr_sf2_point2_fan3.dev_attr.attr,
1222         &sensor_dev_attr_sf2_point3_fan3.dev_attr.attr,
1223         &sensor_dev_attr_sf2_point4_fan3.dev_attr.attr,
1224         &sensor_dev_attr_sf2_level1_fan1.dev_attr.attr,
1225         &sensor_dev_attr_sf2_level2_fan1.dev_attr.attr,
1226         &sensor_dev_attr_sf2_level3_fan1.dev_attr.attr,
1227         &sensor_dev_attr_sf2_level1_fan2.dev_attr.attr,
1228         &sensor_dev_attr_sf2_level2_fan2.dev_attr.attr,
1229         &sensor_dev_attr_sf2_level3_fan2.dev_attr.attr,
1230         &sensor_dev_attr_sf2_level1_fan3.dev_attr.attr,
1231         &sensor_dev_attr_sf2_level2_fan3.dev_attr.attr,
1232         &sensor_dev_attr_sf2_level3_fan3.dev_attr.attr,
1233         &sensor_dev_attr_fan1_input.dev_attr.attr,
1234         &sensor_dev_attr_fan1_min.dev_attr.attr,
1235         &sensor_dev_attr_fan1_div.dev_attr.attr,
1236         &sensor_dev_attr_fan2_input.dev_attr.attr,
1237         &sensor_dev_attr_fan2_min.dev_attr.attr,
1238         &sensor_dev_attr_fan2_div.dev_attr.attr,
1239         &sensor_dev_attr_fan3_input.dev_attr.attr,
1240         &sensor_dev_attr_fan3_min.dev_attr.attr,
1241         &sensor_dev_attr_fan3_div.dev_attr.attr,
1242         NULL
1243 };
1244
1245 static const struct attribute_group w83792d_group = {
1246         .attrs = w83792d_attributes,
1247 };
1248
1249 static int
1250 w83792d_detect(struct i2c_adapter *adapter, int address, int kind)
1251 {
1252         int i = 0, val1 = 0, val2;
1253         struct i2c_client *client;
1254         struct device *dev;
1255         struct w83792d_data *data;
1256         int err = 0;
1257         const char *client_name = "";
1258
1259         if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
1260                 goto ERROR0;
1261         }
1262
1263         /* OK. For now, we presume we have a valid client. We now create the
1264            client structure, even though we cannot fill it completely yet.
1265            But it allows us to access w83792d_{read,write}_value. */
1266
1267         if (!(data = kzalloc(sizeof(struct w83792d_data), GFP_KERNEL))) {
1268                 err = -ENOMEM;
1269                 goto ERROR0;
1270         }
1271
1272         client = &data->client;
1273         dev = &client->dev;
1274         i2c_set_clientdata(client, data);
1275         client->addr = address;
1276         client->adapter = adapter;
1277         client->driver = &w83792d_driver;
1278         client->flags = 0;
1279
1280         /* Now, we do the remaining detection. */
1281
1282         /* The w83792d may be stuck in some other bank than bank 0. This may
1283            make reading other information impossible. Specify a force=... or
1284            force_*=... parameter, and the Winbond will be reset to the right
1285            bank. */
1286         if (kind < 0) {
1287                 if (w83792d_read_value(client, W83792D_REG_CONFIG) & 0x80) {
1288                         dev_dbg(dev, "Detection failed at step 1\n");
1289                         goto ERROR1;
1290                 }
1291                 val1 = w83792d_read_value(client, W83792D_REG_BANK);
1292                 val2 = w83792d_read_value(client, W83792D_REG_CHIPMAN);
1293                 /* Check for Winbond ID if in bank 0 */
1294                 if (!(val1 & 0x07)) {  /* is Bank0 */
1295                         if (((!(val1 & 0x80)) && (val2 != 0xa3)) ||
1296                              ((val1 & 0x80) && (val2 != 0x5c))) {
1297                                 dev_dbg(dev, "Detection failed at step 2\n");
1298                                 goto ERROR1;
1299                         }
1300                 }
1301                 /* If Winbond chip, address of chip and W83792D_REG_I2C_ADDR
1302                    should match */
1303                 if (w83792d_read_value(client,
1304                                         W83792D_REG_I2C_ADDR) != address) {
1305                         dev_dbg(dev, "Detection failed at step 3\n");
1306                         goto ERROR1;
1307                 }
1308         }
1309
1310         /* We have either had a force parameter, or we have already detected the
1311            Winbond. Put it now into bank 0 and Vendor ID High Byte */
1312         w83792d_write_value(client,
1313                             W83792D_REG_BANK,
1314                             (w83792d_read_value(client,
1315                                 W83792D_REG_BANK) & 0x78) | 0x80);
1316
1317         /* Determine the chip type. */
1318         if (kind <= 0) {
1319                 /* get vendor ID */
1320                 val2 = w83792d_read_value(client, W83792D_REG_CHIPMAN);
1321                 if (val2 != 0x5c) {  /* the vendor is NOT Winbond */
1322                         goto ERROR1;
1323                 }
1324                 val1 = w83792d_read_value(client, W83792D_REG_WCHIPID);
1325                 if (val1 == 0x7a) {
1326                         kind = w83792d;
1327                 } else {
1328                         if (kind == 0)
1329                                         dev_warn(dev,
1330                                         "w83792d: Ignoring 'force' parameter for"
1331                                         " unknown chip at adapter %d, address"
1332                                         " 0x%02x\n", i2c_adapter_id(adapter),
1333                                         address);
1334                         goto ERROR1;
1335                 }
1336         }
1337
1338         if (kind == w83792d) {
1339                 client_name = "w83792d";
1340         } else {
1341                 dev_err(dev, "w83792d: Internal error: unknown"
1342                                           " kind (%d)?!?", kind);
1343                 goto ERROR1;
1344         }
1345
1346         /* Fill in the remaining client fields and put into the global list */
1347         strlcpy(client->name, client_name, I2C_NAME_SIZE);
1348         data->type = kind;
1349
1350         data->valid = 0;
1351         mutex_init(&data->update_lock);
1352
1353         /* Tell the I2C layer a new client has arrived */
1354         if ((err = i2c_attach_client(client)))
1355                 goto ERROR1;
1356
1357         if ((err = w83792d_detect_subclients(adapter, address,
1358                         kind, client)))
1359                 goto ERROR2;
1360
1361         /* Initialize the chip */
1362         w83792d_init_client(client);
1363
1364         /* A few vars need to be filled upon startup */
1365         for (i = 0; i < 7; i++) {
1366                 data->fan_min[i] = w83792d_read_value(client,
1367                                         W83792D_REG_FAN_MIN[i]);
1368         }
1369
1370         /* Register sysfs hooks */
1371         if ((err = sysfs_create_group(&dev->kobj, &w83792d_group)))
1372                 goto ERROR3;
1373
1374         /* Read GPIO enable register to check if pins for fan 4,5 are used as
1375            GPIO */
1376         val1 = w83792d_read_value(client, W83792D_REG_GPIO_EN);
1377
1378         if (!(val1 & 0x40))
1379                 if ((err = sysfs_create_group(&dev->kobj,
1380                                               &w83792d_group_fan[0])))
1381                         goto exit_remove_files;
1382
1383         if (!(val1 & 0x20))
1384                 if ((err = sysfs_create_group(&dev->kobj,
1385                                               &w83792d_group_fan[1])))
1386                         goto exit_remove_files;
1387
1388         val1 = w83792d_read_value(client, W83792D_REG_PIN);
1389         if (val1 & 0x40)
1390                 if ((err = sysfs_create_group(&dev->kobj,
1391                                               &w83792d_group_fan[2])))
1392                         goto exit_remove_files;
1393
1394         if (val1 & 0x04)
1395                 if ((err = sysfs_create_group(&dev->kobj,
1396                                               &w83792d_group_fan[3])))
1397                         goto exit_remove_files;
1398
1399         data->class_dev = hwmon_device_register(dev);
1400         if (IS_ERR(data->class_dev)) {
1401                 err = PTR_ERR(data->class_dev);
1402                 goto exit_remove_files;
1403         }
1404
1405         return 0;
1406
1407 exit_remove_files:
1408         sysfs_remove_group(&dev->kobj, &w83792d_group);
1409         for (i = 0; i < ARRAY_SIZE(w83792d_group_fan); i++)
1410                 sysfs_remove_group(&dev->kobj, &w83792d_group_fan[i]);
1411 ERROR3:
1412         if (data->lm75[0] != NULL) {
1413                 i2c_detach_client(data->lm75[0]);
1414                 kfree(data->lm75[0]);
1415         }
1416         if (data->lm75[1] != NULL) {
1417                 i2c_detach_client(data->lm75[1]);
1418                 kfree(data->lm75[1]);
1419         }
1420 ERROR2:
1421         i2c_detach_client(client);
1422 ERROR1:
1423         kfree(data);
1424 ERROR0:
1425         return err;
1426 }
1427
1428 static int
1429 w83792d_detach_client(struct i2c_client *client)
1430 {
1431         struct w83792d_data *data = i2c_get_clientdata(client);
1432         int err, i;
1433
1434         /* main client */
1435         if (data) {
1436                 hwmon_device_unregister(data->class_dev);
1437                 sysfs_remove_group(&client->dev.kobj, &w83792d_group);
1438                 for (i = 0; i < ARRAY_SIZE(w83792d_group_fan); i++)
1439                         sysfs_remove_group(&client->dev.kobj,
1440                                            &w83792d_group_fan[i]);
1441         }
1442
1443         if ((err = i2c_detach_client(client)))
1444                 return err;
1445
1446         /* main client */
1447         if (data)
1448                 kfree(data);
1449         /* subclient */
1450         else
1451                 kfree(client);
1452
1453         return 0;
1454 }
1455
1456 static void
1457 w83792d_init_client(struct i2c_client *client)
1458 {
1459         u8 temp2_cfg, temp3_cfg, vid_in_b;
1460
1461         if (init) {
1462                 w83792d_write_value(client, W83792D_REG_CONFIG, 0x80);
1463         }
1464         /* Clear the bit6 of W83792D_REG_VID_IN_B(set it into 0):
1465            W83792D_REG_VID_IN_B bit6 = 0: the high/low limit of
1466              vin0/vin1 can be modified by user;
1467            W83792D_REG_VID_IN_B bit6 = 1: the high/low limit of
1468              vin0/vin1 auto-updated, can NOT be modified by user. */
1469         vid_in_b = w83792d_read_value(client, W83792D_REG_VID_IN_B);
1470         w83792d_write_value(client, W83792D_REG_VID_IN_B,
1471                             vid_in_b & 0xbf);
1472
1473         temp2_cfg = w83792d_read_value(client, W83792D_REG_TEMP2_CONFIG);
1474         temp3_cfg = w83792d_read_value(client, W83792D_REG_TEMP3_CONFIG);
1475         w83792d_write_value(client, W83792D_REG_TEMP2_CONFIG,
1476                                 temp2_cfg & 0xe6);
1477         w83792d_write_value(client, W83792D_REG_TEMP3_CONFIG,
1478                                 temp3_cfg & 0xe6);
1479
1480         /* Start monitoring */
1481         w83792d_write_value(client, W83792D_REG_CONFIG,
1482                             (w83792d_read_value(client,
1483                                                 W83792D_REG_CONFIG) & 0xf7)
1484                             | 0x01);
1485 }
1486
1487 static struct w83792d_data *w83792d_update_device(struct device *dev)
1488 {
1489         struct i2c_client *client = to_i2c_client(dev);
1490         struct w83792d_data *data = i2c_get_clientdata(client);
1491         int i, j;
1492         u8 reg_array_tmp[4], reg_tmp;
1493
1494         mutex_lock(&data->update_lock);
1495
1496         if (time_after
1497             (jiffies - data->last_updated, (unsigned long) (HZ * 3))
1498             || time_before(jiffies, data->last_updated) || !data->valid) {
1499                 dev_dbg(dev, "Starting device update\n");
1500
1501                 /* Update the voltages measured value and limits */
1502                 for (i = 0; i < 9; i++) {
1503                         data->in[i] = w83792d_read_value(client,
1504                                                 W83792D_REG_IN[i]);
1505                         data->in_max[i] = w83792d_read_value(client,
1506                                                 W83792D_REG_IN_MAX[i]);
1507                         data->in_min[i] = w83792d_read_value(client,
1508                                                 W83792D_REG_IN_MIN[i]);
1509                 }
1510                 data->low_bits = w83792d_read_value(client,
1511                                                 W83792D_REG_LOW_BITS1) +
1512                                  (w83792d_read_value(client,
1513                                                 W83792D_REG_LOW_BITS2) << 8);
1514                 for (i = 0; i < 7; i++) {
1515                         /* Update the Fan measured value and limits */
1516                         data->fan[i] = w83792d_read_value(client,
1517                                                 W83792D_REG_FAN[i]);
1518                         data->fan_min[i] = w83792d_read_value(client,
1519                                                 W83792D_REG_FAN_MIN[i]);
1520                         /* Update the PWM/DC Value and PWM/DC flag */
1521                         data->pwm[i] = w83792d_read_value(client,
1522                                                 W83792D_REG_PWM[i]);
1523                 }
1524
1525                 reg_tmp = w83792d_read_value(client, W83792D_REG_FAN_CFG);
1526                 data->pwmenable[0] = reg_tmp & 0x03;
1527                 data->pwmenable[1] = (reg_tmp>>2) & 0x03;
1528                 data->pwmenable[2] = (reg_tmp>>4) & 0x03;
1529
1530                 for (i = 0; i < 3; i++) {
1531                         data->temp1[i] = w83792d_read_value(client,
1532                                                         W83792D_REG_TEMP1[i]);
1533                 }
1534                 for (i = 0; i < 2; i++) {
1535                         for (j = 0; j < 6; j++) {
1536                                 data->temp_add[i][j] = w83792d_read_value(
1537                                         client,W83792D_REG_TEMP_ADD[i][j]);
1538                         }
1539                 }
1540
1541                 /* Update the Fan Divisor */
1542                 for (i = 0; i < 4; i++) {
1543                         reg_array_tmp[i] = w83792d_read_value(client,
1544                                                         W83792D_REG_FAN_DIV[i]);
1545                 }
1546                 data->fan_div[0] = reg_array_tmp[0] & 0x07;
1547                 data->fan_div[1] = (reg_array_tmp[0] >> 4) & 0x07;
1548                 data->fan_div[2] = reg_array_tmp[1] & 0x07;
1549                 data->fan_div[3] = (reg_array_tmp[1] >> 4) & 0x07;
1550                 data->fan_div[4] = reg_array_tmp[2] & 0x07;
1551                 data->fan_div[5] = (reg_array_tmp[2] >> 4) & 0x07;
1552                 data->fan_div[6] = reg_array_tmp[3] & 0x07;
1553
1554                 /* Update the realtime status */
1555                 data->alarms = w83792d_read_value(client, W83792D_REG_ALARM1) +
1556                         (w83792d_read_value(client, W83792D_REG_ALARM2) << 8) +
1557                         (w83792d_read_value(client, W83792D_REG_ALARM3) << 16);
1558
1559                 /* Update CaseOpen status and it's CLR_CHS. */
1560                 data->chassis = (w83792d_read_value(client,
1561                         W83792D_REG_CHASSIS) >> 5) & 0x01;
1562                 data->chassis_clear = (w83792d_read_value(client,
1563                         W83792D_REG_CHASSIS_CLR) >> 7) & 0x01;
1564
1565                 /* Update Thermal Cruise/Smart Fan I target value */
1566                 for (i = 0; i < 3; i++) {
1567                         data->thermal_cruise[i] =
1568                                 w83792d_read_value(client,
1569                                 W83792D_REG_THERMAL[i]) & 0x7f;
1570                 }
1571
1572                 /* Update Smart Fan I/II tolerance */
1573                 reg_tmp = w83792d_read_value(client, W83792D_REG_TOLERANCE[0]);
1574                 data->tolerance[0] = reg_tmp & 0x0f;
1575                 data->tolerance[1] = (reg_tmp >> 4) & 0x0f;
1576                 data->tolerance[2] = w83792d_read_value(client,
1577                                         W83792D_REG_TOLERANCE[2]) & 0x0f;
1578
1579                 /* Update Smart Fan II temperature points */
1580                 for (i = 0; i < 3; i++) {
1581                         for (j = 0; j < 4; j++) {
1582                                 data->sf2_points[i][j] = w83792d_read_value(
1583                                         client,W83792D_REG_POINTS[i][j]) & 0x7f;
1584                         }
1585                 }
1586
1587                 /* Update Smart Fan II duty cycle levels */
1588                 for (i = 0; i < 3; i++) {
1589                         reg_tmp = w83792d_read_value(client,
1590                                                 W83792D_REG_LEVELS[i][0]);
1591                         data->sf2_levels[i][0] = reg_tmp & 0x0f;
1592                         data->sf2_levels[i][1] = (reg_tmp >> 4) & 0x0f;
1593                         reg_tmp = w83792d_read_value(client,
1594                                                 W83792D_REG_LEVELS[i][2]);
1595                         data->sf2_levels[i][2] = (reg_tmp >> 4) & 0x0f;
1596                         data->sf2_levels[i][3] = reg_tmp & 0x0f;
1597                 }
1598
1599                 data->last_updated = jiffies;
1600                 data->valid = 1;
1601         }
1602
1603         mutex_unlock(&data->update_lock);
1604
1605 #ifdef DEBUG
1606         w83792d_print_debug(data, dev);
1607 #endif
1608
1609         return data;
1610 }
1611
1612 #ifdef DEBUG
1613 static void w83792d_print_debug(struct w83792d_data *data, struct device *dev)
1614 {
1615         int i=0, j=0;
1616         dev_dbg(dev, "==========The following is the debug message...========\n");
1617         dev_dbg(dev, "9 set of Voltages: =====>\n");
1618         for (i=0; i<9; i++) {
1619                 dev_dbg(dev, "vin[%d] is: 0x%x\n", i, data->in[i]);
1620                 dev_dbg(dev, "vin[%d] max is: 0x%x\n", i, data->in_max[i]);
1621                 dev_dbg(dev, "vin[%d] min is: 0x%x\n", i, data->in_min[i]);
1622         }
1623         dev_dbg(dev, "Low Bit1 is: 0x%x\n", data->low_bits & 0xff);
1624         dev_dbg(dev, "Low Bit2 is: 0x%x\n", data->low_bits >> 8);
1625         dev_dbg(dev, "7 set of Fan Counts and Duty Cycles: =====>\n");
1626         for (i=0; i<7; i++) {
1627                 dev_dbg(dev, "fan[%d] is: 0x%x\n", i, data->fan[i]);
1628                 dev_dbg(dev, "fan[%d] min is: 0x%x\n", i, data->fan_min[i]);
1629                 dev_dbg(dev, "pwm[%d]     is: 0x%x\n", i, data->pwm[i]);
1630         }
1631         dev_dbg(dev, "3 set of Temperatures: =====>\n");
1632         for (i=0; i<3; i++) {
1633                 dev_dbg(dev, "temp1[%d] is: 0x%x\n", i, data->temp1[i]);
1634         }
1635
1636         for (i=0; i<2; i++) {
1637                 for (j=0; j<6; j++) {
1638                         dev_dbg(dev, "temp_add[%d][%d] is: 0x%x\n", i, j,
1639                                                         data->temp_add[i][j]);
1640                 }
1641         }
1642
1643         for (i=0; i<7; i++) {
1644                 dev_dbg(dev, "fan_div[%d] is: 0x%x\n", i, data->fan_div[i]);
1645         }
1646         dev_dbg(dev, "==========End of the debug message...==================\n");
1647         dev_dbg(dev, "\n");
1648 }
1649 #endif
1650
1651 static int __init
1652 sensors_w83792d_init(void)
1653 {
1654         return i2c_add_driver(&w83792d_driver);
1655 }
1656
1657 static void __exit
1658 sensors_w83792d_exit(void)
1659 {
1660         i2c_del_driver(&w83792d_driver);
1661 }
1662
1663 MODULE_AUTHOR("Chunhao Huang @ Winbond <DZShen@Winbond.com.tw>");
1664 MODULE_DESCRIPTION("W83792AD/D driver for linux-2.6");
1665 MODULE_LICENSE("GPL");
1666
1667 module_init(sensors_w83792d_init);
1668 module_exit(sensors_w83792d_exit);
1669