drivers/hwmon/lm85.c

   1 /*
   2     lm85.c - Part of lm_sensors, Linux kernel modules for hardware
   3              monitoring
   4     Copyright (c) 1998, 1999  Frodo Looijaard <frodol@dds.nl>
   5     Copyright (c) 2002, 2003  Philip Pokorny <ppokorny@penguincomputing.com>
   6     Copyright (c) 2003        Margit Schubert-While <margitsw@t-online.de>
   7     Copyright (c) 2004        Justin Thiessen <jthiessen@penguincomputing.com>
   8
   9     Chip details at           <http://www.national.com/ds/LM/LM85.pdf>
  10
  11     This program is free software; you can redistribute it and/or modify
  12     it under the terms of the GNU General Public License as published by
  13     the Free Software Foundation; either version 2 of the License, or
  14     (at your option) any later version.
  15
  16     This program is distributed in the hope that it will be useful,
  17     but WITHOUT ANY WARRANTY; without even the implied warranty of
  18     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19     GNU General Public License for more details.
  20
  21     You should have received a copy of the GNU General Public License
  22     along with this program; if not, write to the Free Software
  23     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  24 */
  25
  26 #include <linux/module.h>
  27 #include <linux/init.h>
  28 #include <linux/slab.h>
  29 #include <linux/jiffies.h>
  30 #include <linux/i2c.h>
  31 #include <linux/hwmon.h>
  32 #include <linux/hwmon-vid.h>
  33 #include <linux/hwmon-sysfs.h>
  34 #include <linux/err.h>
  35 #include <linux/mutex.h>
  36
  37 /* Addresses to scan */
  38 static unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END };
  39
  40 /* Insmod parameters */
  41 I2C_CLIENT_INSMOD_6(lm85b, lm85c, adm1027, adt7463, emc6d100, emc6d102);
  42
  43 /* The LM85 registers */
  44
  45 #define LM85_REG_IN(nr)                 (0x20 + (nr))
  46 #define LM85_REG_IN_MIN(nr)             (0x44 + (nr) * 2)
  47 #define LM85_REG_IN_MAX(nr)             (0x45 + (nr) * 2)
  48
  49 #define LM85_REG_TEMP(nr)               (0x25 + (nr))
  50 #define LM85_REG_TEMP_MIN(nr)           (0x4e + (nr) * 2)
  51 #define LM85_REG_TEMP_MAX(nr)           (0x4f + (nr) * 2)
  52
  53 /* Fan speeds are LSB, MSB (2 bytes) */
  54 #define LM85_REG_FAN(nr)                (0x28 + (nr) *2)
  55 #define LM85_REG_FAN_MIN(nr)            (0x54 + (nr) *2)
  56
  57 #define LM85_REG_PWM(nr)                (0x30 + (nr))
  58
  59 #define ADT7463_REG_OPPOINT(nr)         (0x33 + (nr))
  60
  61 #define ADT7463_REG_TMIN_CTL1           0x36
  62 #define ADT7463_REG_TMIN_CTL2           0x37
  63
  64 #define LM85_REG_DEVICE                 0x3d
  65 #define LM85_REG_COMPANY                0x3e
  66 #define LM85_REG_VERSTEP                0x3f
  67 /* These are the recognized values for the above regs */
  68 #define LM85_DEVICE_ADX                 0x27
  69 #define LM85_COMPANY_NATIONAL           0x01
  70 #define LM85_COMPANY_ANALOG_DEV         0x41
  71 #define LM85_COMPANY_SMSC               0x5c
  72 #define LM85_VERSTEP_VMASK              0xf0
  73 #define LM85_VERSTEP_GENERIC            0x60
  74 #define LM85_VERSTEP_LM85C              0x60
  75 #define LM85_VERSTEP_LM85B              0x62
  76 #define LM85_VERSTEP_ADM1027            0x60
  77 #define LM85_VERSTEP_ADT7463            0x62
  78 #define LM85_VERSTEP_ADT7463C           0x6A
  79 #define LM85_VERSTEP_EMC6D100_A0        0x60
  80 #define LM85_VERSTEP_EMC6D100_A1        0x61
  81 #define LM85_VERSTEP_EMC6D102           0x65
  82
  83 #define LM85_REG_CONFIG                 0x40
  84
  85 #define LM85_REG_ALARM1                 0x41
  86 #define LM85_REG_ALARM2                 0x42
  87
  88 #define LM85_REG_VID                    0x43
  89
  90 /* Automated FAN control */
  91 #define LM85_REG_AFAN_CONFIG(nr)        (0x5c + (nr))
  92 #define LM85_REG_AFAN_RANGE(nr)         (0x5f + (nr))
  93 #define LM85_REG_AFAN_SPIKE1            0x62
  94 #define LM85_REG_AFAN_SPIKE2            0x63
  95 #define LM85_REG_AFAN_MINPWM(nr)        (0x64 + (nr))
  96 #define LM85_REG_AFAN_LIMIT(nr)         (0x67 + (nr))
  97 #define LM85_REG_AFAN_CRITICAL(nr)      (0x6a + (nr))
  98 #define LM85_REG_AFAN_HYST1             0x6d
  99 #define LM85_REG_AFAN_HYST2             0x6e
 100
 101 #define LM85_REG_TACH_MODE              0x74
 102 #define LM85_REG_SPINUP_CTL             0x75
 103
 104 #define ADM1027_REG_TEMP_OFFSET(nr)     (0x70 + (nr))
 105 #define ADM1027_REG_CONFIG2             0x73
 106 #define ADM1027_REG_INTMASK1            0x74
 107 #define ADM1027_REG_INTMASK2            0x75
 108 #define ADM1027_REG_EXTEND_ADC1         0x76
 109 #define ADM1027_REG_EXTEND_ADC2         0x77
 110 #define ADM1027_REG_CONFIG3             0x78
 111 #define ADM1027_REG_FAN_PPR             0x7b
 112
 113 #define ADT7463_REG_THERM               0x79
 114 #define ADT7463_REG_THERM_LIMIT         0x7A
 115
 116 #define EMC6D100_REG_ALARM3             0x7d
 117 /* IN5, IN6 and IN7 */
 118 #define EMC6D100_REG_IN(nr)             (0x70 + ((nr)-5))
 119 #define EMC6D100_REG_IN_MIN(nr)         (0x73 + ((nr)-5) * 2)
 120 #define EMC6D100_REG_IN_MAX(nr)         (0x74 + ((nr)-5) * 2)
 121 #define EMC6D102_REG_EXTEND_ADC1        0x85
 122 #define EMC6D102_REG_EXTEND_ADC2        0x86
 123 #define EMC6D102_REG_EXTEND_ADC3        0x87
 124 #define EMC6D102_REG_EXTEND_ADC4        0x88
 125
 126
 127 /* Conversions. Rounding and limit checking is only done on the TO_REG
 128    variants. Note that you should be a bit careful with which arguments
 129    these macros are called: arguments may be evaluated more than once.
 130  */
 131
 132 /* IN are scaled acording to built-in resistors */
 133 static int lm85_scaling[] = {  /* .001 Volts */
 134                 2500, 2250, 3300, 5000, 12000,
 135                 3300, 1500, 1800 /*EMC6D100*/
 136         };
 137 #define SCALE(val,from,to)              (((val)*(to) + ((from)/2))/(from))
 138
 139 #define INS_TO_REG(n,val)       \
 140                 SENSORS_LIMIT(SCALE(val,lm85_scaling[n],192),0,255)
 141
 142 #define INSEXT_FROM_REG(n,val,ext)      \
 143                 SCALE(((val) << 4) + (ext), 192 << 4, lm85_scaling[n])
 144
 145 #define INS_FROM_REG(n,val)     SCALE((val), 192, lm85_scaling[n])
 146
 147 /* FAN speed is measured using 90kHz clock */
 148 static inline u16 FAN_TO_REG(unsigned long val)
 149 {
 150         if (!val)
 151                 return 0xffff;
 152         return SENSORS_LIMIT(5400000 / val, 1, 0xfffe);
 153 }
 154 #define FAN_FROM_REG(val)       ((val)==0?-1:(val)==0xffff?0:5400000/(val))
 155
 156 /* Temperature is reported in .001 degC increments */
 157 #define TEMP_TO_REG(val)        \
 158                 SENSORS_LIMIT(SCALE(val,1000,1),-127,127)
 159 #define TEMPEXT_FROM_REG(val,ext)       \
 160                 SCALE(((val) << 4) + (ext), 16, 1000)
 161 #define TEMP_FROM_REG(val)      ((val) * 1000)
 162
 163 #define PWM_TO_REG(val)                 (SENSORS_LIMIT(val,0,255))
 164 #define PWM_FROM_REG(val)               (val)
 165
 166
 167 /* ZONEs have the following parameters:
 168  *    Limit (low) temp,           1. degC
 169  *    Hysteresis (below limit),   1. degC (0-15)
 170  *    Range of speed control,     .1 degC (2-80)
 171  *    Critical (high) temp,       1. degC
 172  *
 173  * FAN PWMs have the following parameters:
 174  *    Reference Zone,                 1, 2, 3, etc.
 175  *    Spinup time,                    .05 sec
 176  *    PWM value at limit/low temp,    1 count
 177  *    PWM Frequency,                  1. Hz
 178  *    PWM is Min or OFF below limit,  flag
 179  *    Invert PWM output,              flag
 180  *
 181  * Some chips filter the temp, others the fan.
 182  *    Filter constant (or disabled)   .1 seconds
 183  */
 184
 185 /* These are the zone temperature range encodings in .001 degree C */
 186 static int lm85_range_map[] = {
 187                 2000,  2500,  3300,  4000,  5000,  6600,
 188                 8000, 10000, 13300, 16000, 20000, 26600,
 189                 32000, 40000, 53300, 80000
 190         };
 191 static int RANGE_TO_REG( int range )
 192 {
 193         int i;
 194
 195         if ( range < lm85_range_map[0] ) {
 196                 return 0 ;
 197         } else if ( range > lm85_range_map[15] ) {
 198                 return 15 ;
 199         } else {  /* find closest match */
 200                 for ( i = 14 ; i >= 0 ; --i ) {
 201                         if ( range > lm85_range_map[i] ) { /* range bracketed */
 202                                 if ((lm85_range_map[i+1] - range) <
 203                                         (range - lm85_range_map[i])) {
 204                                         i++;
 205                                         break;
 206                                 }
 207                                 break;
 208                         }
 209                 }
 210         }
 211         return( i & 0x0f );
 212 }
 213 #define RANGE_FROM_REG(val) (lm85_range_map[(val)&0x0f])
 214
 215 /* These are the Acoustic Enhancement, or Temperature smoothing encodings
 216  * NOTE: The enable/disable bit is INCLUDED in these encodings as the
 217  *       MSB (bit 3, value 8).  If the enable bit is 0, the encoded value
 218  *       is ignored, or set to 0.
 219  */
 220 /* These are the PWM frequency encodings */
 221 static int lm85_freq_map[] = { /* .1 Hz */
 222                 100, 150, 230, 300, 380, 470, 620, 940
 223         };
 224 static int FREQ_TO_REG( int freq )
 225 {
 226         int i;
 227
 228         if( freq >= lm85_freq_map[7] ) { return 7 ; }
 229         for( i = 0 ; i < 7 ; ++i )
 230                 if( freq <= lm85_freq_map[i] )
 231                         break ;
 232         return( i & 0x07 );
 233 }
 234 #define FREQ_FROM_REG(val) (lm85_freq_map[(val)&0x07])
 235
 236 /* Since we can't use strings, I'm abusing these numbers
 237  *   to stand in for the following meanings:
 238  *      1 -- PWM responds to Zone 1
 239  *      2 -- PWM responds to Zone 2
 240  *      3 -- PWM responds to Zone 3
 241  *     23 -- PWM responds to the higher temp of Zone 2 or 3
 242  *    123 -- PWM responds to highest of Zone 1, 2, or 3
 243  *      0 -- PWM is always at 0% (ie, off)
 244  *     -1 -- PWM is always at 100%
 245  *     -2 -- PWM responds to manual control
 246  */
 247
 248 static int lm85_zone_map[] = { 1, 2, 3, -1, 0, 23, 123, -2 };
 249 #define ZONE_FROM_REG(val) (lm85_zone_map[((val)>>5)&0x07])
 250
 251 static int ZONE_TO_REG( int zone )
 252 {
 253         int i;
 254
 255         for( i = 0 ; i <= 7 ; ++i )
 256                 if( zone == lm85_zone_map[i] )
 257                         break ;
 258         if( i > 7 )   /* Not found. */
 259                 i = 3;  /* Always 100% */
 260         return( (i & 0x07)<<5 );
 261 }
 262
 263 #define HYST_TO_REG(val) (SENSORS_LIMIT(((val)+500)/1000,0,15))
 264 #define HYST_FROM_REG(val) ((val)*1000)
 265
 266 #define OFFSET_TO_REG(val) (SENSORS_LIMIT((val)/25,-127,127))
 267 #define OFFSET_FROM_REG(val) ((val)*25)
 268
 269 #define PPR_MASK(fan) (0x03<<(fan *2))
 270 #define PPR_TO_REG(val,fan) (SENSORS_LIMIT((val)-1,0,3)<<(fan *2))
 271 #define PPR_FROM_REG(val,fan) ((((val)>>(fan * 2))&0x03)+1)
 272
 273 /* Chip sampling rates
 274  *
 275  * Some sensors are not updated more frequently than once per second
 276  *    so it doesn't make sense to read them more often than that.
 277  *    We cache the results and return the saved data if the driver
 278  *    is called again before a second has elapsed.
 279  *
 280  * Also, there is significant configuration data for this chip
 281  *    given the automatic PWM fan control that is possible.  There
 282  *    are about 47 bytes of config data to only 22 bytes of actual
 283  *    readings.  So, we keep the config data up to date in the cache
 284  *    when it is written and only sample it once every 1 *minute*
 285  */
 286 #define LM85_DATA_INTERVAL  (HZ + HZ / 2)
 287 #define LM85_CONFIG_INTERVAL  (1 * 60 * HZ)
 288
 289 /* LM85 can automatically adjust fan speeds based on temperature
 290  * This structure encapsulates an entire Zone config.  There are
 291  * three zones (one for each temperature input) on the lm85
 292  */
 293 struct lm85_zone {
 294         s8 limit;       /* Low temp limit */
 295         u8 hyst;        /* Low limit hysteresis. (0-15) */
 296         u8 range;       /* Temp range, encoded */
 297         s8 critical;    /* "All fans ON" temp limit */
 298         u8 off_desired; /* Actual "off" temperature specified.  Preserved
 299                          * to prevent "drift" as other autofan control
 300                          * values change.
 301                          */
 302         u8 max_desired; /* Actual "max" temperature specified.  Preserved
 303                          * to prevent "drift" as other autofan control
 304                          * values change.
 305                          */
 306 };
 307
 308 struct lm85_autofan {
 309         u8 config;      /* Register value */
 310         u8 freq;        /* PWM frequency, encoded */
 311         u8 min_pwm;     /* Minimum PWM value, encoded */
 312         u8 min_off;     /* Min PWM or OFF below "limit", flag */
 313 };
 314
 315 /* For each registered chip, we need to keep some data in memory.
 316    The structure is dynamically allocated. */
 317 struct lm85_data {
 318         struct i2c_client client;
 319         struct device *hwmon_dev;
 320         enum chips type;
 321
 322         struct mutex update_lock;
 323         int valid;              /* !=0 if following fields are valid */
 324         unsigned long last_reading;     /* In jiffies */
 325         unsigned long last_config;      /* In jiffies */
 326
 327         u8 in[8];               /* Register value */
 328         u8 in_max[8];           /* Register value */
 329         u8 in_min[8];           /* Register value */
 330         s8 temp[3];             /* Register value */
 331         s8 temp_min[3];         /* Register value */
 332         s8 temp_max[3];         /* Register value */
 333         s8 temp_offset[3];      /* Register value */
 334         u16 fan[4];             /* Register value */
 335         u16 fan_min[4];         /* Register value */
 336         u8 pwm[3];              /* Register value */
 337         u8 spinup_ctl;          /* Register encoding, combined */
 338         u8 tach_mode;           /* Register encoding, combined */
 339         u8 temp_ext[3];         /* Decoded values */
 340         u8 in_ext[8];           /* Decoded values */
 341         u8 fan_ppr;             /* Register value */
 342         u8 smooth[3];           /* Register encoding */
 343         u8 vid;                 /* Register value */
 344         u8 vrm;                 /* VRM version */
 345         u8 syncpwm3;            /* Saved PWM3 for TACH 2,3,4 config */
 346         u8 oppoint[3];          /* Register value */
 347         u16 tmin_ctl;           /* Register value */
 348         unsigned long therm_total; /* Cummulative therm count */
 349         u8 therm_limit;         /* Register value */
 350         u32 alarms;             /* Register encoding, combined */
 351         struct lm85_autofan autofan[3];
 352         struct lm85_zone zone[3];
 353 };
 354
 355 static int lm85_attach_adapter(struct i2c_adapter *adapter);
 356 static int lm85_detect(struct i2c_adapter *adapter, int address,
 357                         int kind);
 358 static int lm85_detach_client(struct i2c_client *client);
 359
 360 static int lm85_read_value(struct i2c_client *client, u8 reg);
 361 static int lm85_write_value(struct i2c_client *client, u8 reg, int value);
 362 static struct lm85_data *lm85_update_device(struct device *dev);
 363 static void lm85_init_client(struct i2c_client *client);
 364
 365
 366 static struct i2c_driver lm85_driver = {
 367         .driver = {
 368                 .name   = "lm85",
 369         },
 370         .id             = I2C_DRIVERID_LM85,
 371         .attach_adapter = lm85_attach_adapter,
 372         .detach_client  = lm85_detach_client,
 373 };
 374
 375
 376 /* 4 Fans */
 377 static ssize_t show_fan(struct device *dev, struct device_attribute *attr,
 378                 char *buf)
 379 {
 380         int nr = to_sensor_dev_attr(attr)->index;
 381         struct lm85_data *data = lm85_update_device(dev);
 382         return sprintf(buf,"%d\n", FAN_FROM_REG(data->fan[nr]) );
 383 }
 384
 385 static ssize_t show_fan_min(struct device *dev, struct device_attribute *attr,
 386                 char *buf)
 387 {
 388         int nr = to_sensor_dev_attr(attr)->index;
 389         struct lm85_data *data = lm85_update_device(dev);
 390         return sprintf(buf,"%d\n", FAN_FROM_REG(data->fan_min[nr]) );
 391 }
 392
 393 static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr,
 394                 const char *buf, size_t count)
 395 {
 396         int nr = to_sensor_dev_attr(attr)->index;
 397         struct i2c_client *client = to_i2c_client(dev);
 398         struct lm85_data *data = i2c_get_clientdata(client);
 399         unsigned long val = simple_strtoul(buf, NULL, 10);
 400
 401         mutex_lock(&data->update_lock);
 402         data->fan_min[nr] = FAN_TO_REG(val);
 403         lm85_write_value(client, LM85_REG_FAN_MIN(nr), data->fan_min[nr]);
 404         mutex_unlock(&data->update_lock);
 405         return count;
 406 }
 407
 408 #define show_fan_offset(offset)                                         \
 409 static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO,                 \
 410                 show_fan, NULL, offset - 1);                            \
 411 static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR,         \
 412                 show_fan_min, set_fan_min, offset - 1)
 413
 414 show_fan_offset(1);
 415 show_fan_offset(2);
 416 show_fan_offset(3);
 417 show_fan_offset(4);
 418
 419 /* vid, vrm, alarms */
 420
 421 static ssize_t show_vid_reg(struct device *dev, struct device_attribute *attr, char *buf)
 422 {
 423         struct lm85_data *data = lm85_update_device(dev);
 424         int vid;
 425
 426         if (data->type == adt7463 && (data->vid & 0x80)) {
 427                 /* 6-pin VID (VRM 10) */
 428                 vid = vid_from_reg(data->vid & 0x3f, data->vrm);
 429         } else {
 430                 /* 5-pin VID (VRM 9) */
 431                 vid = vid_from_reg(data->vid & 0x1f, data->vrm);
 432         }
 433
 434         return sprintf(buf, "%d\n", vid);
 435 }
 436
 437 static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL);
 438
 439 static ssize_t show_vrm_reg(struct device *dev, struct device_attribute *attr, char *buf)
 440 {
 441         struct lm85_data *data = dev_get_drvdata(dev);
 442         return sprintf(buf, "%ld\n", (long) data->vrm);
 443 }
 444
 445 static ssize_t store_vrm_reg(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
 446 {
 447         struct i2c_client *client = to_i2c_client(dev);
 448         struct lm85_data *data = i2c_get_clientdata(client);
 449         u32 val;
 450
 451         val = simple_strtoul(buf, NULL, 10);
 452         data->vrm = val;
 453         return count;
 454 }
 455
 456 static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg);
 457
 458 static ssize_t show_alarms_reg(struct device *dev, struct device_attribute *attr, char *buf)
 459 {
 460         struct lm85_data *data = lm85_update_device(dev);
 461         return sprintf(buf, "%u\n", data->alarms);
 462 }
 463
 464 static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL);
 465
 466 static ssize_t show_alarm(struct device *dev, struct device_attribute *attr,
 467                 char *buf)
 468 {
 469         int nr = to_sensor_dev_attr(attr)->index;
 470         struct lm85_data *data = lm85_update_device(dev);
 471         return sprintf(buf, "%u\n", (data->alarms >> nr) & 1);
 472 }
 473
 474 static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0);
 475 static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1);
 476 static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2);
 477 static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3);
 478 static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 8);
 479 static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 18);
 480 static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 16);
 481 static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 17);
 482 static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 4);
 483 static SENSOR_DEVICE_ATTR(temp1_fault, S_IRUGO, show_alarm, NULL, 14);
 484 static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 5);
 485 static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 6);
 486 static SENSOR_DEVICE_ATTR(temp3_fault, S_IRUGO, show_alarm, NULL, 15);
 487 static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 10);
 488 static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 11);
 489 static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 12);
 490 static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, 13);
 491
 492 /* pwm */
 493
 494 static ssize_t show_pwm(struct device *dev, struct device_attribute *attr,
 495                 char *buf)
 496 {
 497         int nr = to_sensor_dev_attr(attr)->index;
 498         struct lm85_data *data = lm85_update_device(dev);
 499         return sprintf(buf,"%d\n", PWM_FROM_REG(data->pwm[nr]) );
 500 }
 501
 502 static ssize_t set_pwm(struct device *dev, struct device_attribute *attr,
 503                 const char *buf, size_t count)
 504 {
 505         int nr = to_sensor_dev_attr(attr)->index;
 506         struct i2c_client *client = to_i2c_client(dev);
 507         struct lm85_data *data = i2c_get_clientdata(client);
 508         long val = simple_strtol(buf, NULL, 10);
 509
 510         mutex_lock(&data->update_lock);
 511         data->pwm[nr] = PWM_TO_REG(val);
 512         lm85_write_value(client, LM85_REG_PWM(nr), data->pwm[nr]);
 513         mutex_unlock(&data->update_lock);
 514         return count;
 515 }
 516
 517 static ssize_t show_pwm_enable(struct device *dev, struct device_attribute
 518                 *attr, char *buf)
 519 {
 520         int nr = to_sensor_dev_attr(attr)->index;
 521         struct lm85_data *data = lm85_update_device(dev);
 522         int     pwm_zone;
 523
 524         pwm_zone = ZONE_FROM_REG(data->autofan[nr].config);
 525         return sprintf(buf,"%d\n", (pwm_zone != 0 && pwm_zone != -1) );
 526 }
 527
 528 #define show_pwm_reg(offset)                                            \
 529 static SENSOR_DEVICE_ATTR(pwm##offset, S_IRUGO | S_IWUSR,               \
 530                 show_pwm, set_pwm, offset - 1);                         \
 531 static SENSOR_DEVICE_ATTR(pwm##offset##_enable, S_IRUGO,                \
 532                 show_pwm_enable, NULL, offset - 1)
 533
 534 show_pwm_reg(1);
 535 show_pwm_reg(2);
 536 show_pwm_reg(3);
 537
 538 /* Voltages */
 539
 540 static ssize_t show_in(struct device *dev, struct device_attribute *attr,
 541                 char *buf)
 542 {
 543         int nr = to_sensor_dev_attr(attr)->index;
 544         struct lm85_data *data = lm85_update_device(dev);
 545         return sprintf( buf, "%d\n", INSEXT_FROM_REG(nr,
 546                                                      data->in[nr],
 547                                                      data->in_ext[nr]));
 548 }
 549
 550 static ssize_t show_in_min(struct device *dev,  struct device_attribute *attr,
 551                 char *buf)
 552 {
 553         int nr = to_sensor_dev_attr(attr)->index;
 554         struct lm85_data *data = lm85_update_device(dev);
 555         return sprintf(buf,"%d\n", INS_FROM_REG(nr, data->in_min[nr]) );
 556 }
 557
 558 static ssize_t set_in_min(struct device *dev, struct device_attribute *attr,
 559                 const char *buf, size_t count)
 560 {
 561         int nr = to_sensor_dev_attr(attr)->index;
 562         struct i2c_client *client = to_i2c_client(dev);
 563         struct lm85_data *data = i2c_get_clientdata(client);
 564         long val = simple_strtol(buf, NULL, 10);
 565
 566         mutex_lock(&data->update_lock);
 567         data->in_min[nr] = INS_TO_REG(nr, val);
 568         lm85_write_value(client, LM85_REG_IN_MIN(nr), data->in_min[nr]);
 569         mutex_unlock(&data->update_lock);
 570         return count;
 571 }
 572
 573 static ssize_t show_in_max(struct device *dev, struct device_attribute *attr,
 574                 char *buf)
 575 {
 576         int nr = to_sensor_dev_attr(attr)->index;
 577         struct lm85_data *data = lm85_update_device(dev);
 578         return sprintf(buf,"%d\n", INS_FROM_REG(nr, data->in_max[nr]) );
 579 }
 580
 581 static ssize_t set_in_max(struct device *dev, struct device_attribute *attr,
 582                 const char *buf, size_t count)
 583 {
 584         int nr = to_sensor_dev_attr(attr)->index;
 585         struct i2c_client *client = to_i2c_client(dev);
 586         struct lm85_data *data = i2c_get_clientdata(client);
 587         long val = simple_strtol(buf, NULL, 10);
 588
 589         mutex_lock(&data->update_lock);
 590         data->in_max[nr] = INS_TO_REG(nr, val);
 591         lm85_write_value(client, LM85_REG_IN_MAX(nr), data->in_max[nr]);
 592         mutex_unlock(&data->update_lock);
 593         return count;
 594 }
 595
 596 #define show_in_reg(offset)                                             \
 597 static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO,                  \
 598                 show_in, NULL, offset);                                 \
 599 static SENSOR_DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR,          \
 600                 show_in_min, set_in_min, offset);                       \
 601 static SENSOR_DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR,          \
 602                 show_in_max, set_in_max, offset)
 603
 604 show_in_reg(0);
 605 show_in_reg(1);
 606 show_in_reg(2);
 607 show_in_reg(3);
 608 show_in_reg(4);
 609 show_in_reg(5);
 610 show_in_reg(6);
 611 show_in_reg(7);
 612
 613 /* Temps */
 614
 615 static ssize_t show_temp(struct device *dev, struct device_attribute *attr,
 616                 char *buf)
 617 {
 618         int nr = to_sensor_dev_attr(attr)->index;
 619         struct lm85_data *data = lm85_update_device(dev);
 620         return sprintf(buf,"%d\n", TEMPEXT_FROM_REG(data->temp[nr],
 621                                                     data->temp_ext[nr]));
 622 }
 623
 624 static ssize_t show_temp_min(struct device *dev, struct device_attribute *attr,
 625                 char *buf)
 626 {
 627         int nr = to_sensor_dev_attr(attr)->index;
 628         struct lm85_data *data = lm85_update_device(dev);
 629         return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp_min[nr]) );
 630 }
 631
 632 static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr,
 633                 const char *buf, size_t count)
 634 {
 635         int nr = to_sensor_dev_attr(attr)->index;
 636         struct i2c_client *client = to_i2c_client(dev);
 637         struct lm85_data *data = i2c_get_clientdata(client);
 638         long val = simple_strtol(buf, NULL, 10);
 639
 640         mutex_lock(&data->update_lock);
 641         data->temp_min[nr] = TEMP_TO_REG(val);
 642         lm85_write_value(client, LM85_REG_TEMP_MIN(nr), data->temp_min[nr]);
 643         mutex_unlock(&data->update_lock);
 644         return count;
 645 }
 646
 647 static ssize_t show_temp_max(struct device *dev, struct device_attribute *attr,
 648                 char *buf)
 649 {
 650         int nr = to_sensor_dev_attr(attr)->index;
 651         struct lm85_data *data = lm85_update_device(dev);
 652         return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp_max[nr]) );
 653 }
 654
 655 static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr,
 656                 const char *buf, size_t count)
 657 {
 658         int nr = to_sensor_dev_attr(attr)->index;
 659         struct i2c_client *client = to_i2c_client(dev);
 660         struct lm85_data *data = i2c_get_clientdata(client);
 661         long val = simple_strtol(buf, NULL, 10);
 662
 663         mutex_lock(&data->update_lock);
 664         data->temp_max[nr] = TEMP_TO_REG(val);
 665         lm85_write_value(client, LM85_REG_TEMP_MAX(nr), data->temp_max[nr]);
 666         mutex_unlock(&data->update_lock);
 667         return count;
 668 }
 669
 670 #define show_temp_reg(offset)                                           \
 671 static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO,                \
 672                 show_temp, NULL, offset - 1);                           \
 673 static SENSOR_DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR,        \
 674                 show_temp_min, set_temp_min, offset - 1);               \
 675 static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR,        \
 676                 show_temp_max, set_temp_max, offset - 1);
 677
 678 show_temp_reg(1);
 679 show_temp_reg(2);
 680 show_temp_reg(3);
 681
 682
 683 /* Automatic PWM control */
 684
 685 static ssize_t show_pwm_auto_channels(struct device *dev,
 686                 struct device_attribute *attr, char *buf)
 687 {
 688         int nr = to_sensor_dev_attr(attr)->index;
 689         struct lm85_data *data = lm85_update_device(dev);
 690         return sprintf(buf,"%d\n", ZONE_FROM_REG(data->autofan[nr].config));
 691 }
 692
 693 static ssize_t set_pwm_auto_channels(struct device *dev,
 694                 struct device_attribute *attr, const char *buf, size_t count)
 695 {
 696         int nr = to_sensor_dev_attr(attr)->index;
 697         struct i2c_client *client = to_i2c_client(dev);
 698         struct lm85_data *data = i2c_get_clientdata(client);
 699         long val = simple_strtol(buf, NULL, 10);
 700
 701         mutex_lock(&data->update_lock);
 702         data->autofan[nr].config = (data->autofan[nr].config & (~0xe0))
 703                 | ZONE_TO_REG(val) ;
 704         lm85_write_value(client, LM85_REG_AFAN_CONFIG(nr),
 705                 data->autofan[nr].config);
 706         mutex_unlock(&data->update_lock);
 707         return count;
 708 }
 709
 710 static ssize_t show_pwm_auto_pwm_min(struct device *dev,
 711                 struct device_attribute *attr, char *buf)
 712 {
 713         int nr = to_sensor_dev_attr(attr)->index;
 714         struct lm85_data *data = lm85_update_device(dev);
 715         return sprintf(buf,"%d\n", PWM_FROM_REG(data->autofan[nr].min_pwm));
 716 }
 717
 718 static ssize_t set_pwm_auto_pwm_min(struct device *dev,
 719                 struct device_attribute *attr, const char *buf, size_t count)
 720 {
 721         int nr = to_sensor_dev_attr(attr)->index;
 722         struct i2c_client *client = to_i2c_client(dev);
 723         struct lm85_data *data = i2c_get_clientdata(client);
 724         long val = simple_strtol(buf, NULL, 10);
 725
 726         mutex_lock(&data->update_lock);
 727         data->autofan[nr].min_pwm = PWM_TO_REG(val);
 728         lm85_write_value(client, LM85_REG_AFAN_MINPWM(nr),
 729                 data->autofan[nr].min_pwm);
 730         mutex_unlock(&data->update_lock);
 731         return count;
 732 }
 733
 734 static ssize_t show_pwm_auto_pwm_minctl(struct device *dev,
 735                 struct device_attribute *attr, char *buf)
 736 {
 737         int nr = to_sensor_dev_attr(attr)->index;
 738         struct lm85_data *data = lm85_update_device(dev);
 739         return sprintf(buf,"%d\n", data->autofan[nr].min_off);
 740 }
 741
 742 static ssize_t set_pwm_auto_pwm_minctl(struct device *dev,
 743                 struct device_attribute *attr, const char *buf, size_t count)
 744 {
 745         int nr = to_sensor_dev_attr(attr)->index;
 746         struct i2c_client *client = to_i2c_client(dev);
 747         struct lm85_data *data = i2c_get_clientdata(client);
 748         long val = simple_strtol(buf, NULL, 10);
 749
 750         mutex_lock(&data->update_lock);
 751         data->autofan[nr].min_off = val;
 752         lm85_write_value(client, LM85_REG_AFAN_SPIKE1, data->smooth[0]
 753                 | data->syncpwm3
 754                 | (data->autofan[0].min_off ? 0x20 : 0)
 755                 | (data->autofan[1].min_off ? 0x40 : 0)
 756                 | (data->autofan[2].min_off ? 0x80 : 0)
 757         );
 758         mutex_unlock(&data->update_lock);
 759         return count;
 760 }
 761
 762 static ssize_t show_pwm_auto_pwm_freq(struct device *dev,
 763                 struct device_attribute *attr, char *buf)
 764 {
 765         int nr = to_sensor_dev_attr(attr)->index;
 766         struct lm85_data *data = lm85_update_device(dev);
 767         return sprintf(buf,"%d\n", FREQ_FROM_REG(data->autofan[nr].freq));
 768 }
 769
 770 static ssize_t set_pwm_auto_pwm_freq(struct device *dev,
 771                 struct device_attribute *attr, const char *buf, size_t count)
 772 {
 773         int nr = to_sensor_dev_attr(attr)->index;
 774         struct i2c_client *client = to_i2c_client(dev);
 775         struct lm85_data *data = i2c_get_clientdata(client);
 776         long val = simple_strtol(buf, NULL, 10);
 777
 778         mutex_lock(&data->update_lock);
 779         data->autofan[nr].freq = FREQ_TO_REG(val);
 780         lm85_write_value(client, LM85_REG_AFAN_RANGE(nr),
 781                 (data->zone[nr].range << 4)
 782                 | data->autofan[nr].freq
 783         );
 784         mutex_unlock(&data->update_lock);
 785         return count;
 786 }
 787
 788 #define pwm_auto(offset)                                                \
 789 static SENSOR_DEVICE_ATTR(pwm##offset##_auto_channels,                  \
 790                 S_IRUGO | S_IWUSR, show_pwm_auto_channels,              \
 791                 set_pwm_auto_channels, offset - 1);                     \
 792 static SENSOR_DEVICE_ATTR(pwm##offset##_auto_pwm_min,                   \
 793                 S_IRUGO | S_IWUSR, show_pwm_auto_pwm_min,               \
 794                 set_pwm_auto_pwm_min, offset - 1);                      \
 795 static SENSOR_DEVICE_ATTR(pwm##offset##_auto_pwm_minctl,                \
 796                 S_IRUGO | S_IWUSR, show_pwm_auto_pwm_minctl,            \
 797                 set_pwm_auto_pwm_minctl, offset - 1);                   \
 798 static SENSOR_DEVICE_ATTR(pwm##offset##_auto_pwm_freq,                  \
 799                 S_IRUGO | S_IWUSR, show_pwm_auto_pwm_freq,              \
 800                 set_pwm_auto_pwm_freq, offset - 1);
 801
 802 pwm_auto(1);
 803 pwm_auto(2);
 804 pwm_auto(3);
 805
 806 /* Temperature settings for automatic PWM control */
 807
 808 static ssize_t show_temp_auto_temp_off(struct device *dev,
 809                 struct device_attribute *attr, char *buf)
 810 {
 811         int nr = to_sensor_dev_attr(attr)->index;
 812         struct lm85_data *data = lm85_update_device(dev);
 813         return sprintf(buf,"%d\n", TEMP_FROM_REG(data->zone[nr].limit) -
 814                 HYST_FROM_REG(data->zone[nr].hyst));
 815 }
 816
 817 static ssize_t set_temp_auto_temp_off(struct device *dev,
 818                 struct device_attribute *attr, const char *buf, size_t count)
 819 {
 820         int nr = to_sensor_dev_attr(attr)->index;
 821         struct i2c_client *client = to_i2c_client(dev);
 822         struct lm85_data *data = i2c_get_clientdata(client);
 823         int min;
 824         long val = simple_strtol(buf, NULL, 10);
 825
 826         mutex_lock(&data->update_lock);
 827         min = TEMP_FROM_REG(data->zone[nr].limit);
 828         data->zone[nr].off_desired = TEMP_TO_REG(val);
 829         data->zone[nr].hyst = HYST_TO_REG(min - val);
 830         if ( nr == 0 || nr == 1 ) {
 831                 lm85_write_value(client, LM85_REG_AFAN_HYST1,
 832                         (data->zone[0].hyst << 4)
 833                         | data->zone[1].hyst
 834                         );
 835         } else {
 836                 lm85_write_value(client, LM85_REG_AFAN_HYST2,
 837                         (data->zone[2].hyst << 4)
 838                 );
 839         }
 840         mutex_unlock(&data->update_lock);
 841         return count;
 842 }
 843
 844 static ssize_t show_temp_auto_temp_min(struct device *dev,
 845                 struct device_attribute *attr, char *buf)
 846 {
 847         int nr = to_sensor_dev_attr(attr)->index;
 848         struct lm85_data *data = lm85_update_device(dev);
 849         return sprintf(buf,"%d\n", TEMP_FROM_REG(data->zone[nr].limit) );
 850 }
 851
 852 static ssize_t set_temp_auto_temp_min(struct device *dev,
 853                 struct device_attribute *attr, const char *buf, size_t count)
 854 {
 855         int nr = to_sensor_dev_attr(attr)->index;
 856         struct i2c_client *client = to_i2c_client(dev);
 857         struct lm85_data *data = i2c_get_clientdata(client);
 858         long val = simple_strtol(buf, NULL, 10);
 859
 860         mutex_lock(&data->update_lock);
 861         data->zone[nr].limit = TEMP_TO_REG(val);
 862         lm85_write_value(client, LM85_REG_AFAN_LIMIT(nr),
 863                 data->zone[nr].limit);
 864
 865 /* Update temp_auto_max and temp_auto_range */
 866         data->zone[nr].range = RANGE_TO_REG(
 867                 TEMP_FROM_REG(data->zone[nr].max_desired) -
 868                 TEMP_FROM_REG(data->zone[nr].limit));
 869         lm85_write_value(client, LM85_REG_AFAN_RANGE(nr),
 870                 ((data->zone[nr].range & 0x0f) << 4)
 871                 | (data->autofan[nr].freq & 0x07));
 872
 873 /* Update temp_auto_hyst and temp_auto_off */
 874         data->zone[nr].hyst = HYST_TO_REG(TEMP_FROM_REG(
 875                 data->zone[nr].limit) - TEMP_FROM_REG(
 876                 data->zone[nr].off_desired));
 877         if ( nr == 0 || nr == 1 ) {
 878                 lm85_write_value(client, LM85_REG_AFAN_HYST1,
 879                         (data->zone[0].hyst << 4)
 880                         | data->zone[1].hyst
 881                         );
 882         } else {
 883                 lm85_write_value(client, LM85_REG_AFAN_HYST2,
 884                         (data->zone[2].hyst << 4)
 885                 );
 886         }
 887         mutex_unlock(&data->update_lock);
 888         return count;
 889 }
 890
 891 static ssize_t show_temp_auto_temp_max(struct device *dev,
 892                 struct device_attribute *attr, char *buf)
 893 {
 894         int nr = to_sensor_dev_attr(attr)->index;
 895         struct lm85_data *data = lm85_update_device(dev);
 896         return sprintf(buf,"%d\n", TEMP_FROM_REG(data->zone[nr].limit) +
 897                 RANGE_FROM_REG(data->zone[nr].range));
 898 }
 899
 900 static ssize_t set_temp_auto_temp_max(struct device *dev,
 901                 struct device_attribute *attr, const char *buf, size_t count)
 902 {
 903         int nr = to_sensor_dev_attr(attr)->index;
 904         struct i2c_client *client = to_i2c_client(dev);
 905         struct lm85_data *data = i2c_get_clientdata(client);
 906         int min;
 907         long val = simple_strtol(buf, NULL, 10);
 908
 909         mutex_lock(&data->update_lock);
 910         min = TEMP_FROM_REG(data->zone[nr].limit);
 911         data->zone[nr].max_desired = TEMP_TO_REG(val);
 912         data->zone[nr].range = RANGE_TO_REG(
 913                 val - min);
 914         lm85_write_value(client, LM85_REG_AFAN_RANGE(nr),
 915                 ((data->zone[nr].range & 0x0f) << 4)
 916                 | (data->autofan[nr].freq & 0x07));
 917         mutex_unlock(&data->update_lock);
 918         return count;
 919 }
 920
 921 static ssize_t show_temp_auto_temp_crit(struct device *dev,
 922                 struct device_attribute *attr, char *buf)
 923 {
 924         int nr = to_sensor_dev_attr(attr)->index;
 925         struct lm85_data *data = lm85_update_device(dev);
 926         return sprintf(buf,"%d\n", TEMP_FROM_REG(data->zone[nr].critical));
 927 }
 928
 929 static ssize_t set_temp_auto_temp_crit(struct device *dev,
 930                 struct device_attribute *attr,const char *buf, size_t count)
 931 {
 932         int nr = to_sensor_dev_attr(attr)->index;
 933         struct i2c_client *client = to_i2c_client(dev);
 934         struct lm85_data *data = i2c_get_clientdata(client);
 935         long val = simple_strtol(buf, NULL, 10);
 936
 937         mutex_lock(&data->update_lock);
 938         data->zone[nr].critical = TEMP_TO_REG(val);
 939         lm85_write_value(client, LM85_REG_AFAN_CRITICAL(nr),
 940                 data->zone[nr].critical);
 941         mutex_unlock(&data->update_lock);
 942         return count;
 943 }
 944
 945 #define temp_auto(offset)                                               \
 946 static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_off,                 \
 947                 S_IRUGO | S_IWUSR, show_temp_auto_temp_off,             \
 948                 set_temp_auto_temp_off, offset - 1);                    \
 949 static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_min,                 \
 950                 S_IRUGO | S_IWUSR, show_temp_auto_temp_min,             \
 951                 set_temp_auto_temp_min, offset - 1);                    \
 952 static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_max,                 \
 953                 S_IRUGO | S_IWUSR, show_temp_auto_temp_max,             \
 954                 set_temp_auto_temp_max, offset - 1);                    \
 955 static SENSOR_DEVICE_ATTR(temp##offset##_auto_temp_crit,                \
 956                 S_IRUGO | S_IWUSR, show_temp_auto_temp_crit,            \
 957                 set_temp_auto_temp_crit, offset - 1);
 958
 959 temp_auto(1);
 960 temp_auto(2);
 961 temp_auto(3);
 962
 963 static int lm85_attach_adapter(struct i2c_adapter *adapter)
 964 {
 965         if (!(adapter->class & I2C_CLASS_HWMON))
 966                 return 0;
 967         return i2c_probe(adapter, &addr_data, lm85_detect);
 968 }
 969
 970 static struct attribute *lm85_attributes[] = {
 971         &sensor_dev_attr_fan1_input.dev_attr.attr,
 972         &sensor_dev_attr_fan2_input.dev_attr.attr,
 973         &sensor_dev_attr_fan3_input.dev_attr.attr,
 974         &sensor_dev_attr_fan4_input.dev_attr.attr,
 975         &sensor_dev_attr_fan1_min.dev_attr.attr,
 976         &sensor_dev_attr_fan2_min.dev_attr.attr,
 977         &sensor_dev_attr_fan3_min.dev_attr.attr,
 978         &sensor_dev_attr_fan4_min.dev_attr.attr,
 979         &sensor_dev_attr_fan1_alarm.dev_attr.attr,
 980         &sensor_dev_attr_fan2_alarm.dev_attr.attr,
 981         &sensor_dev_attr_fan3_alarm.dev_attr.attr,
 982         &sensor_dev_attr_fan4_alarm.dev_attr.attr,
 983
 984         &sensor_dev_attr_pwm1.dev_attr.attr,
 985         &sensor_dev_attr_pwm2.dev_attr.attr,
 986         &sensor_dev_attr_pwm3.dev_attr.attr,
 987         &sensor_dev_attr_pwm1_enable.dev_attr.attr,
 988         &sensor_dev_attr_pwm2_enable.dev_attr.attr,
 989         &sensor_dev_attr_pwm3_enable.dev_attr.attr,
 990
 991         &sensor_dev_attr_in0_input.dev_attr.attr,
 992         &sensor_dev_attr_in1_input.dev_attr.attr,
 993         &sensor_dev_attr_in2_input.dev_attr.attr,
 994         &sensor_dev_attr_in3_input.dev_attr.attr,
 995         &sensor_dev_attr_in0_min.dev_attr.attr,
 996         &sensor_dev_attr_in1_min.dev_attr.attr,
 997         &sensor_dev_attr_in2_min.dev_attr.attr,
 998         &sensor_dev_attr_in3_min.dev_attr.attr,
 999         &sensor_dev_attr_in0_max.dev_attr.attr,
1000         &sensor_dev_attr_in1_max.dev_attr.attr,
1001         &sensor_dev_attr_in2_max.dev_attr.attr,
1002         &sensor_dev_attr_in3_max.dev_attr.attr,
1003         &sensor_dev_attr_in0_alarm.dev_attr.attr,
1004         &sensor_dev_attr_in1_alarm.dev_attr.attr,
1005         &sensor_dev_attr_in2_alarm.dev_attr.attr,
1006         &sensor_dev_attr_in3_alarm.dev_attr.attr,
1007
1008         &sensor_dev_attr_temp1_input.dev_attr.attr,
1009         &sensor_dev_attr_temp2_input.dev_attr.attr,
1010         &sensor_dev_attr_temp3_input.dev_attr.attr,
1011         &sensor_dev_attr_temp1_min.dev_attr.attr,
1012         &sensor_dev_attr_temp2_min.dev_attr.attr,
1013         &sensor_dev_attr_temp3_min.dev_attr.attr,
1014         &sensor_dev_attr_temp1_max.dev_attr.attr,
1015         &sensor_dev_attr_temp2_max.dev_attr.attr,
1016         &sensor_dev_attr_temp3_max.dev_attr.attr,
1017         &sensor_dev_attr_temp1_alarm.dev_attr.attr,
1018         &sensor_dev_attr_temp2_alarm.dev_attr.attr,
1019         &sensor_dev_attr_temp3_alarm.dev_attr.attr,
1020         &sensor_dev_attr_temp1_fault.dev_attr.attr,
1021         &sensor_dev_attr_temp3_fault.dev_attr.attr,
1022
1023         &sensor_dev_attr_pwm1_auto_channels.dev_attr.attr,
1024         &sensor_dev_attr_pwm2_auto_channels.dev_attr.attr,
1025         &sensor_dev_attr_pwm3_auto_channels.dev_attr.attr,
1026         &sensor_dev_attr_pwm1_auto_pwm_min.dev_attr.attr,
1027         &sensor_dev_attr_pwm2_auto_pwm_min.dev_attr.attr,
1028         &sensor_dev_attr_pwm3_auto_pwm_min.dev_attr.attr,
1029         &sensor_dev_attr_pwm1_auto_pwm_minctl.dev_attr.attr,
1030         &sensor_dev_attr_pwm2_auto_pwm_minctl.dev_attr.attr,
1031         &sensor_dev_attr_pwm3_auto_pwm_minctl.dev_attr.attr,
1032         &sensor_dev_attr_pwm1_auto_pwm_freq.dev_attr.attr,
1033         &sensor_dev_attr_pwm2_auto_pwm_freq.dev_attr.attr,
1034         &sensor_dev_attr_pwm3_auto_pwm_freq.dev_attr.attr,
1035
1036         &sensor_dev_attr_temp1_auto_temp_off.dev_attr.attr,
1037         &sensor_dev_attr_temp2_auto_temp_off.dev_attr.attr,
1038         &sensor_dev_attr_temp3_auto_temp_off.dev_attr.attr,
1039         &sensor_dev_attr_temp1_auto_temp_min.dev_attr.attr,
1040         &sensor_dev_attr_temp2_auto_temp_min.dev_attr.attr,
1041         &sensor_dev_attr_temp3_auto_temp_min.dev_attr.attr,
1042         &sensor_dev_attr_temp1_auto_temp_max.dev_attr.attr,
1043         &sensor_dev_attr_temp2_auto_temp_max.dev_attr.attr,
1044         &sensor_dev_attr_temp3_auto_temp_max.dev_attr.attr,
1045         &sensor_dev_attr_temp1_auto_temp_crit.dev_attr.attr,
1046         &sensor_dev_attr_temp2_auto_temp_crit.dev_attr.attr,
1047         &sensor_dev_attr_temp3_auto_temp_crit.dev_attr.attr,
1048
1049         &dev_attr_vrm.attr,
1050         &dev_attr_cpu0_vid.attr,
1051         &dev_attr_alarms.attr,
1052         NULL
1053 };
1054
1055 static const struct attribute_group lm85_group = {
1056         .attrs = lm85_attributes,
1057 };
1058
1059 static struct attribute *lm85_attributes_in4[] = {
1060         &sensor_dev_attr_in4_input.dev_attr.attr,
1061         &sensor_dev_attr_in4_min.dev_attr.attr,
1062         &sensor_dev_attr_in4_max.dev_attr.attr,
1063         &sensor_dev_attr_in4_alarm.dev_attr.attr,
1064         NULL
1065 };
1066
1067 static const struct attribute_group lm85_group_in4 = {
1068         .attrs = lm85_attributes_in4,
1069 };
1070
1071 static struct attribute *lm85_attributes_in567[] = {
1072         &sensor_dev_attr_in5_input.dev_attr.attr,
1073         &sensor_dev_attr_in6_input.dev_attr.attr,
1074         &sensor_dev_attr_in7_input.dev_attr.attr,
1075         &sensor_dev_attr_in5_min.dev_attr.attr,
1076         &sensor_dev_attr_in6_min.dev_attr.attr,
1077         &sensor_dev_attr_in7_min.dev_attr.attr,
1078         &sensor_dev_attr_in5_max.dev_attr.attr,
1079         &sensor_dev_attr_in6_max.dev_attr.attr,
1080         &sensor_dev_attr_in7_max.dev_attr.attr,
1081         &sensor_dev_attr_in5_alarm.dev_attr.attr,
1082         &sensor_dev_attr_in6_alarm.dev_attr.attr,
1083         &sensor_dev_attr_in7_alarm.dev_attr.attr,
1084         NULL
1085 };
1086
1087 static const struct attribute_group lm85_group_in567 = {
1088         .attrs = lm85_attributes_in567,
1089 };
1090
1091 static int lm85_detect(struct i2c_adapter *adapter, int address,
1092                 int kind)
1093 {
1094         int company, verstep ;
1095         struct i2c_client *new_client = NULL;
1096         struct lm85_data *data;
1097         int err = 0;
1098         const char *type_name = "";
1099
1100         if (!i2c_check_functionality(adapter,
1101                                         I2C_FUNC_SMBUS_BYTE_DATA)) {
1102                 /* We need to be able to do byte I/O */
1103                 goto ERROR0 ;
1104         };
1105
1106         /* OK. For now, we presume we have a valid client. We now create the
1107            client structure, even though we cannot fill it completely yet.
1108            But it allows us to access lm85_{read,write}_value. */
1109
1110         if (!(data = kzalloc(sizeof(struct lm85_data), GFP_KERNEL))) {
1111                 err = -ENOMEM;
1112                 goto ERROR0;
1113         }
1114
1115         new_client = &data->client;
1116         i2c_set_clientdata(new_client, data);
1117         new_client->addr = address;
1118         new_client->adapter = adapter;
1119         new_client->driver = &lm85_driver;
1120         new_client->flags = 0;
1121
1122         /* Now, we do the remaining detection. */
1123
1124         company = lm85_read_value(new_client, LM85_REG_COMPANY);
1125         verstep = lm85_read_value(new_client, LM85_REG_VERSTEP);
1126
1127         dev_dbg(&adapter->dev, "Detecting device at %d,0x%02x with"
1128                 " COMPANY: 0x%02x and VERSTEP: 0x%02x\n",
1129                 i2c_adapter_id(new_client->adapter), new_client->addr,
1130                 company, verstep);
1131
1132         /* If auto-detecting, Determine the chip type. */
1133         if (kind <= 0) {
1134                 dev_dbg(&adapter->dev, "Autodetecting device at %d,0x%02x ...\n",
1135                         i2c_adapter_id(adapter), address );
1136                 if( company == LM85_COMPANY_NATIONAL
1137                     && verstep == LM85_VERSTEP_LM85C ) {
1138                         kind = lm85c ;
1139                 } else if( company == LM85_COMPANY_NATIONAL
1140                     && verstep == LM85_VERSTEP_LM85B ) {
1141                         kind = lm85b ;
1142                 } else if( company == LM85_COMPANY_NATIONAL
1143                     && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC ) {
1144                         dev_err(&adapter->dev, "Unrecognized version/stepping 0x%02x"
1145                                 " Defaulting to LM85.\n", verstep);
1146                         kind = any_chip ;
1147                 } else if( company == LM85_COMPANY_ANALOG_DEV
1148                     && verstep == LM85_VERSTEP_ADM1027 ) {
1149                         kind = adm1027 ;
1150                 } else if( company == LM85_COMPANY_ANALOG_DEV
1151                     && (verstep == LM85_VERSTEP_ADT7463
1152                          || verstep == LM85_VERSTEP_ADT7463C) ) {
1153                         kind = adt7463 ;
1154                 } else if( company == LM85_COMPANY_ANALOG_DEV
1155                     && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC ) {
1156                         dev_err(&adapter->dev, "Unrecognized version/stepping 0x%02x"
1157                                 " Defaulting to Generic LM85.\n", verstep );
1158                         kind = any_chip ;
1159                 } else if( company == LM85_COMPANY_SMSC
1160                     && (verstep == LM85_VERSTEP_EMC6D100_A0
1161                          || verstep == LM85_VERSTEP_EMC6D100_A1) ) {
1162                         /* Unfortunately, we can't tell a '100 from a '101
1163                          * from the registers.  Since a '101 is a '100
1164                          * in a package with fewer pins and therefore no
1165                          * 3.3V, 1.5V or 1.8V inputs, perhaps if those
1166                          * inputs read 0, then it's a '101.
1167                          */
1168                         kind = emc6d100 ;
1169                 } else if( company == LM85_COMPANY_SMSC
1170                     && verstep == LM85_VERSTEP_EMC6D102) {
1171                         kind = emc6d102 ;
1172                 } else if( company == LM85_COMPANY_SMSC
1173                     && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC) {
1174                         dev_err(&adapter->dev, "lm85: Detected SMSC chip\n");
1175                         dev_err(&adapter->dev, "lm85: Unrecognized version/stepping 0x%02x"
1176                             " Defaulting to Generic LM85.\n", verstep );
1177                         kind = any_chip ;
1178                 } else if( kind == any_chip
1179                     && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC) {
1180                         dev_err(&adapter->dev, "Generic LM85 Version 6 detected\n");
1181                         /* Leave kind as "any_chip" */
1182                 } else {
1183                         dev_dbg(&adapter->dev, "Autodetection failed\n");
1184                         /* Not an LM85 ... */
1185                         if( kind == any_chip ) {  /* User used force=x,y */
1186                                 dev_err(&adapter->dev, "Generic LM85 Version 6 not"
1187                                         " found at %d,0x%02x. Try force_lm85c.\n",
1188                                         i2c_adapter_id(adapter), address );
1189                         }
1190                         err = 0 ;
1191                         goto ERROR1;
1192                 }
1193         }
1194
1195         /* Fill in the chip specific driver values */
1196         if ( kind == any_chip ) {
1197                 type_name = "lm85";
1198         } else if ( kind == lm85b ) {
1199                 type_name = "lm85b";
1200         } else if ( kind == lm85c ) {
1201                 type_name = "lm85c";
1202         } else if ( kind == adm1027 ) {
1203                 type_name = "adm1027";
1204         } else if ( kind == adt7463 ) {
1205                 type_name = "adt7463";
1206         } else if ( kind == emc6d100){
1207                 type_name = "emc6d100";
1208         } else if ( kind == emc6d102 ) {
1209                 type_name = "emc6d102";
1210         }
1211         strlcpy(new_client->name, type_name, I2C_NAME_SIZE);
1212
1213         /* Fill in the remaining client fields */
1214         data->type = kind;
1215         data->valid = 0;
1216         mutex_init(&data->update_lock);
1217
1218         /* Tell the I2C layer a new client has arrived */
1219         if ((err = i2c_attach_client(new_client)))
1220                 goto ERROR1;
1221
1222         /* Set the VRM version */
1223         data->vrm = vid_which_vrm();
1224
1225         /* Initialize the LM85 chip */
1226         lm85_init_client(new_client);
1227
1228         /* Register sysfs hooks */
1229         if ((err = sysfs_create_group(&new_client->dev.kobj, &lm85_group)))
1230                 goto ERROR2;
1231
1232         /* The ADT7463 has an optional VRM 10 mode where pin 21 is used
1233            as a sixth digital VID input rather than an analog input. */
1234         data->vid = lm85_read_value(new_client, LM85_REG_VID);
1235         if (!(kind == adt7463 && (data->vid & 0x80)))
1236                 if ((err = sysfs_create_group(&new_client->dev.kobj,
1237                                         &lm85_group_in4)))
1238                         goto ERROR3;
1239
1240         /* The EMC6D100 has 3 additional voltage inputs */
1241         if (kind == emc6d100)
1242                 if ((err = sysfs_create_group(&new_client->dev.kobj,
1243                                         &lm85_group_in567)))
1244                         goto ERROR3;
1245
1246         data->hwmon_dev = hwmon_device_register(&new_client->dev);
1247         if (IS_ERR(data->hwmon_dev)) {
1248                 err = PTR_ERR(data->hwmon_dev);
1249                 goto ERROR3;
1250         }
1251
1252         return 0;
1253
1254         /* Error out and cleanup code */
1255     ERROR3:
1256         sysfs_remove_group(&new_client->dev.kobj, &lm85_group);
1257         sysfs_remove_group(&new_client->dev.kobj, &lm85_group_in4);
1258         if (kind == emc6d100)
1259                 sysfs_remove_group(&new_client->dev.kobj, &lm85_group_in567);
1260     ERROR2:
1261         i2c_detach_client(new_client);
1262     ERROR1:
1263         kfree(data);
1264     ERROR0:
1265         return err;
1266 }
1267
1268 static int lm85_detach_client(struct i2c_client *client)
1269 {
1270         struct lm85_data *data = i2c_get_clientdata(client);
1271         hwmon_device_unregister(data->hwmon_dev);
1272         sysfs_remove_group(&client->dev.kobj, &lm85_group);
1273         sysfs_remove_group(&client->dev.kobj, &lm85_group_in4);
1274         if (data->type == emc6d100)
1275                 sysfs_remove_group(&client->dev.kobj, &lm85_group_in567);
1276         i2c_detach_client(client);
1277         kfree(data);
1278         return 0;
1279 }
1280
1281
1282 static int lm85_read_value(struct i2c_client *client, u8 reg)
1283 {
1284         int res;
1285
1286         /* What size location is it? */
1287         switch( reg ) {
1288         case LM85_REG_FAN(0) :  /* Read WORD data */
1289         case LM85_REG_FAN(1) :
1290         case LM85_REG_FAN(2) :
1291         case LM85_REG_FAN(3) :
1292         case LM85_REG_FAN_MIN(0) :
1293         case LM85_REG_FAN_MIN(1) :
1294         case LM85_REG_FAN_MIN(2) :
1295         case LM85_REG_FAN_MIN(3) :
1296         case LM85_REG_ALARM1 :  /* Read both bytes at once */
1297                 res = i2c_smbus_read_byte_data(client, reg) & 0xff ;
1298                 res |= i2c_smbus_read_byte_data(client, reg+1) << 8 ;
1299                 break ;
1300         case ADT7463_REG_TMIN_CTL1 :  /* Read WORD MSB, LSB */
1301                 res = i2c_smbus_read_byte_data(client, reg) << 8 ;
1302                 res |= i2c_smbus_read_byte_data(client, reg+1) & 0xff ;
1303                 break ;
1304         default:        /* Read BYTE data */
1305                 res = i2c_smbus_read_byte_data(client, reg);
1306                 break ;
1307         }
1308
1309         return res ;
1310 }
1311
1312 static int lm85_write_value(struct i2c_client *client, u8 reg, int value)
1313 {
1314         int res ;
1315
1316         switch( reg ) {
1317         case LM85_REG_FAN(0) :  /* Write WORD data */
1318         case LM85_REG_FAN(1) :
1319         case LM85_REG_FAN(2) :
1320         case LM85_REG_FAN(3) :
1321         case LM85_REG_FAN_MIN(0) :
1322         case LM85_REG_FAN_MIN(1) :
1323         case LM85_REG_FAN_MIN(2) :
1324         case LM85_REG_FAN_MIN(3) :
1325         /* NOTE: ALARM is read only, so not included here */
1326                 res = i2c_smbus_write_byte_data(client, reg, value & 0xff) ;
1327                 res |= i2c_smbus_write_byte_data(client, reg+1, (value>>8) & 0xff) ;
1328                 break ;
1329         case ADT7463_REG_TMIN_CTL1 :  /* Write WORD MSB, LSB */
1330                 res = i2c_smbus_write_byte_data(client, reg, (value>>8) & 0xff);
1331                 res |= i2c_smbus_write_byte_data(client, reg+1, value & 0xff) ;
1332                 break ;
1333         default:        /* Write BYTE data */
1334                 res = i2c_smbus_write_byte_data(client, reg, value);
1335                 break ;
1336         }
1337
1338         return res ;
1339 }
1340
1341 static void lm85_init_client(struct i2c_client *client)
1342 {
1343         int value;
1344         struct lm85_data *data = i2c_get_clientdata(client);
1345
1346         dev_dbg(&client->dev, "Initializing device\n");
1347
1348         /* Warn if part was not "READY" */
1349         value = lm85_read_value(client, LM85_REG_CONFIG);
1350         dev_dbg(&client->dev, "LM85_REG_CONFIG is: 0x%02x\n", value);
1351         if( value & 0x02 ) {
1352                 dev_err(&client->dev, "Client (%d,0x%02x) config is locked.\n",
1353                             i2c_adapter_id(client->adapter), client->addr );
1354         };
1355         if( ! (value & 0x04) ) {
1356                 dev_err(&client->dev, "Client (%d,0x%02x) is not ready.\n",
1357                             i2c_adapter_id(client->adapter), client->addr );
1358         };
1359         if( value & 0x10
1360             && ( data->type == adm1027
1361                 || data->type == adt7463 ) ) {
1362                 dev_err(&client->dev, "Client (%d,0x%02x) VxI mode is set.  "
1363                         "Please report this to the lm85 maintainer.\n",
1364                             i2c_adapter_id(client->adapter), client->addr );
1365         };
1366
1367         /* WE INTENTIONALLY make no changes to the limits,
1368          *   offsets, pwms, fans and zones.  If they were
1369          *   configured, we don't want to mess with them.
1370          *   If they weren't, the default is 100% PWM, no
1371          *   control and will suffice until 'sensors -s'
1372          *   can be run by the user.
1373          */
1374
1375         /* Start monitoring */
1376         value = lm85_read_value(client, LM85_REG_CONFIG);
1377         /* Try to clear LOCK, Set START, save everything else */
1378         value = (value & ~ 0x02) | 0x01 ;
1379         dev_dbg(&client->dev, "Setting CONFIG to: 0x%02x\n", value);
1380         lm85_write_value(client, LM85_REG_CONFIG, value);
1381 }
1382
1383 static struct lm85_data *lm85_update_device(struct device *dev)
1384 {
1385         struct i2c_client *client = to_i2c_client(dev);
1386         struct lm85_data *data = i2c_get_clientdata(client);
1387         int i;
1388
1389         mutex_lock(&data->update_lock);
1390
1391         if ( !data->valid ||
1392              time_after(jiffies, data->last_reading + LM85_DATA_INTERVAL) ) {
1393                 /* Things that change quickly */
1394                 dev_dbg(&client->dev, "Reading sensor values\n");
1395
1396                 /* Have to read extended bits first to "freeze" the
1397                  * more significant bits that are read later.
1398                  * There are 2 additional resolution bits per channel and we
1399                  * have room for 4, so we shift them to the left.
1400                  */
1401                 if ( (data->type == adm1027) || (data->type == adt7463) ) {
1402                         int ext1 = lm85_read_value(client,
1403                                                    ADM1027_REG_EXTEND_ADC1);
1404                         int ext2 =  lm85_read_value(client,
1405                                                     ADM1027_REG_EXTEND_ADC2);
1406                         int val = (ext1 << 8) + ext2;
1407
1408                         for(i = 0; i <= 4; i++)
1409                                 data->in_ext[i] = ((val>>(i * 2))&0x03) << 2;
1410
1411                         for(i = 0; i <= 2; i++)
1412                                 data->temp_ext[i] = (val>>((i + 4) * 2))&0x0c;
1413                 }
1414
1415                 data->vid = lm85_read_value(client, LM85_REG_VID);
1416
1417                 for (i = 0; i <= 3; ++i) {
1418                         data->in[i] =
1419                             lm85_read_value(client, LM85_REG_IN(i));
1420                 }
1421
1422                 if (!(data->type == adt7463 && (data->vid & 0x80))) {
1423                         data->in[4] = lm85_read_value(client,
1424                                       LM85_REG_IN(4));
1425                 }
1426
1427                 for (i = 0; i <= 3; ++i) {
1428                         data->fan[i] =
1429                             lm85_read_value(client, LM85_REG_FAN(i));
1430                 }
1431
1432                 for (i = 0; i <= 2; ++i) {
1433                         data->temp[i] =
1434                             lm85_read_value(client, LM85_REG_TEMP(i));
1435                 }
1436
1437                 for (i = 0; i <= 2; ++i) {
1438                         data->pwm[i] =
1439                             lm85_read_value(client, LM85_REG_PWM(i));
1440                 }
1441
1442                 data->alarms = lm85_read_value(client, LM85_REG_ALARM1);
1443
1444                 if ( data->type == adt7463 ) {
1445                         if( data->therm_total < ULONG_MAX - 256 ) {
1446                             data->therm_total +=
1447                                 lm85_read_value(client, ADT7463_REG_THERM );
1448                         }
1449                 } else if ( data->type == emc6d100 ) {
1450                         /* Three more voltage sensors */
1451                         for (i = 5; i <= 7; ++i) {
1452                                 data->in[i] =
1453                                         lm85_read_value(client, EMC6D100_REG_IN(i));
1454                         }
1455                         /* More alarm bits */
1456                         data->alarms |=
1457                                 lm85_read_value(client, EMC6D100_REG_ALARM3) << 16;
1458                 } else if (data->type == emc6d102 ) {
1459                         /* Have to read LSB bits after the MSB ones because
1460                            the reading of the MSB bits has frozen the
1461                            LSBs (backward from the ADM1027).
1462                          */
1463                         int ext1 = lm85_read_value(client,
1464                                                    EMC6D102_REG_EXTEND_ADC1);
1465                         int ext2 = lm85_read_value(client,
1466                                                    EMC6D102_REG_EXTEND_ADC2);
1467                         int ext3 = lm85_read_value(client,
1468                                                    EMC6D102_REG_EXTEND_ADC3);
1469                         int ext4 = lm85_read_value(client,
1470                                                    EMC6D102_REG_EXTEND_ADC4);
1471                         data->in_ext[0] = ext3 & 0x0f;
1472                         data->in_ext[1] = ext4 & 0x0f;
1473                         data->in_ext[2] = (ext4 >> 4) & 0x0f;
1474                         data->in_ext[3] = (ext3 >> 4) & 0x0f;
1475                         data->in_ext[4] = (ext2 >> 4) & 0x0f;
1476
1477                         data->temp_ext[0] = ext1 & 0x0f;
1478                         data->temp_ext[1] = ext2 & 0x0f;
1479                         data->temp_ext[2] = (ext1 >> 4) & 0x0f;
1480                 }
1481
1482                 data->last_reading = jiffies ;
1483         };  /* last_reading */
1484
1485         if ( !data->valid ||
1486              time_after(jiffies, data->last_config + LM85_CONFIG_INTERVAL) ) {
1487                 /* Things that don't change often */
1488                 dev_dbg(&client->dev, "Reading config values\n");
1489
1490                 for (i = 0; i <= 3; ++i) {
1491                         data->in_min[i] =
1492                             lm85_read_value(client, LM85_REG_IN_MIN(i));
1493                         data->in_max[i] =
1494                             lm85_read_value(client, LM85_REG_IN_MAX(i));
1495                 }
1496
1497                 if (!(data->type == adt7463 && (data->vid & 0x80))) {
1498                         data->in_min[4] = lm85_read_value(client,
1499                                           LM85_REG_IN_MIN(4));
1500                         data->in_max[4] = lm85_read_value(client,
1501                                           LM85_REG_IN_MAX(4));
1502                 }
1503
1504                 if ( data->type == emc6d100 ) {
1505                         for (i = 5; i <= 7; ++i) {
1506                                 data->in_min[i] =
1507                                         lm85_read_value(client, EMC6D100_REG_IN_MIN(i));
1508                                 data->in_max[i] =
1509                                         lm85_read_value(client, EMC6D100_REG_IN_MAX(i));
1510                         }
1511                 }
1512
1513                 for (i = 0; i <= 3; ++i) {
1514                         data->fan_min[i] =
1515                             lm85_read_value(client, LM85_REG_FAN_MIN(i));
1516                 }
1517
1518                 for (i = 0; i <= 2; ++i) {
1519                         data->temp_min[i] =
1520                             lm85_read_value(client, LM85_REG_TEMP_MIN(i));
1521                         data->temp_max[i] =
1522                             lm85_read_value(client, LM85_REG_TEMP_MAX(i));
1523                 }
1524
1525                 for (i = 0; i <= 2; ++i) {
1526                         int val ;
1527                         data->autofan[i].config =
1528                             lm85_read_value(client, LM85_REG_AFAN_CONFIG(i));
1529                         val = lm85_read_value(client, LM85_REG_AFAN_RANGE(i));
1530                         data->autofan[i].freq = val & 0x07 ;
1531                         data->zone[i].range = (val >> 4) & 0x0f ;
1532                         data->autofan[i].min_pwm =
1533                             lm85_read_value(client, LM85_REG_AFAN_MINPWM(i));
1534                         data->zone[i].limit =
1535                             lm85_read_value(client, LM85_REG_AFAN_LIMIT(i));
1536                         data->zone[i].critical =
1537                             lm85_read_value(client, LM85_REG_AFAN_CRITICAL(i));
1538                 }
1539
1540                 i = lm85_read_value(client, LM85_REG_AFAN_SPIKE1);
1541                 data->smooth[0] = i & 0x0f ;
1542                 data->syncpwm3 = i & 0x10 ;  /* Save PWM3 config */
1543                 data->autofan[0].min_off = (i & 0x20) != 0 ;
1544                 data->autofan[1].min_off = (i & 0x40) != 0 ;
1545                 data->autofan[2].min_off = (i & 0x80) != 0 ;
1546                 i = lm85_read_value(client, LM85_REG_AFAN_SPIKE2);
1547                 data->smooth[1] = (i>>4) & 0x0f ;
1548                 data->smooth[2] = i & 0x0f ;
1549
1550                 i = lm85_read_value(client, LM85_REG_AFAN_HYST1);
1551                 data->zone[0].hyst = (i>>4) & 0x0f ;
1552                 data->zone[1].hyst = i & 0x0f ;
1553
1554                 i = lm85_read_value(client, LM85_REG_AFAN_HYST2);
1555                 data->zone[2].hyst = (i>>4) & 0x0f ;
1556
1557                 if ( (data->type == lm85b) || (data->type == lm85c) ) {
1558                         data->tach_mode = lm85_read_value(client,
1559                                 LM85_REG_TACH_MODE );
1560                         data->spinup_ctl = lm85_read_value(client,
1561                                 LM85_REG_SPINUP_CTL );
1562                 } else if ( (data->type == adt7463) || (data->type == adm1027) ) {
1563                         if ( data->type == adt7463 ) {
1564                                 for (i = 0; i <= 2; ++i) {
1565                                     data->oppoint[i] = lm85_read_value(client,
1566                                         ADT7463_REG_OPPOINT(i) );
1567                                 }
1568                                 data->tmin_ctl = lm85_read_value(client,
1569                                         ADT7463_REG_TMIN_CTL1 );
1570                                 data->therm_limit = lm85_read_value(client,
1571                                         ADT7463_REG_THERM_LIMIT );
1572                         }
1573                         for (i = 0; i <= 2; ++i) {
1574                             data->temp_offset[i] = lm85_read_value(client,
1575                                 ADM1027_REG_TEMP_OFFSET(i) );
1576                         }
1577                         data->tach_mode = lm85_read_value(client,
1578                                 ADM1027_REG_CONFIG3 );
1579                         data->fan_ppr = lm85_read_value(client,
1580                                 ADM1027_REG_FAN_PPR );
1581                 }
1582
1583                 data->last_config = jiffies;
1584         };  /* last_config */
1585
1586         data->valid = 1;
1587
1588         mutex_unlock(&data->update_lock);
1589
1590         return data;
1591 }
1592
1593
1594 static int __init sm_lm85_init(void)
1595 {
1596         return i2c_add_driver(&lm85_driver);
1597 }
1598
1599 static void  __exit sm_lm85_exit(void)
1600 {
1601         i2c_del_driver(&lm85_driver);
1602 }
1603
1604 /* Thanks to Richard Barrington for adding the LM85 to sensors-detect.
1605  * Thanks to Margit Schubert-While <margitsw@t-online.de> for help with
1606  *     post 2.7.0 CVS changes.
1607  */
1608 MODULE_LICENSE("GPL");
1609 MODULE_AUTHOR("Philip Pokorny <ppokorny@penguincomputing.com>, Margit Schubert-While <margitsw@t-online.de>, Justin Thiessen <jthiessen@penguincomputing.com");
1610 MODULE_DESCRIPTION("LM85-B, LM85-C driver");
1611
1612 module_init(sm_lm85_init);
1613 module_exit(sm_lm85_exit);