[PATCH] hwmon: hwmon vs i2c, second round (06/11)
[linux-3.10.git] / 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/i2c-vid.h>
32 #include <linux/hwmon.h>
33 #include <linux/err.h>
34
35 /* Addresses to scan */
36 static unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END };
37
38 /* Insmod parameters */
39 I2C_CLIENT_INSMOD_6(lm85b, lm85c, adm1027, adt7463, emc6d100, emc6d102);
40
41 /* The LM85 registers */
42
43 #define LM85_REG_IN(nr)                 (0x20 + (nr))
44 #define LM85_REG_IN_MIN(nr)             (0x44 + (nr) * 2)
45 #define LM85_REG_IN_MAX(nr)             (0x45 + (nr) * 2)
46
47 #define LM85_REG_TEMP(nr)               (0x25 + (nr))
48 #define LM85_REG_TEMP_MIN(nr)           (0x4e + (nr) * 2)
49 #define LM85_REG_TEMP_MAX(nr)           (0x4f + (nr) * 2)
50
51 /* Fan speeds are LSB, MSB (2 bytes) */
52 #define LM85_REG_FAN(nr)                (0x28 + (nr) *2)
53 #define LM85_REG_FAN_MIN(nr)            (0x54 + (nr) *2)
54
55 #define LM85_REG_PWM(nr)                (0x30 + (nr))
56
57 #define ADT7463_REG_OPPOINT(nr)         (0x33 + (nr))
58
59 #define ADT7463_REG_TMIN_CTL1           0x36
60 #define ADT7463_REG_TMIN_CTL2           0x37
61
62 #define LM85_REG_DEVICE                 0x3d
63 #define LM85_REG_COMPANY                0x3e
64 #define LM85_REG_VERSTEP                0x3f
65 /* These are the recognized values for the above regs */
66 #define LM85_DEVICE_ADX                 0x27
67 #define LM85_COMPANY_NATIONAL           0x01
68 #define LM85_COMPANY_ANALOG_DEV         0x41
69 #define LM85_COMPANY_SMSC               0x5c
70 #define LM85_VERSTEP_VMASK              0xf0
71 #define LM85_VERSTEP_GENERIC            0x60
72 #define LM85_VERSTEP_LM85C              0x60
73 #define LM85_VERSTEP_LM85B              0x62
74 #define LM85_VERSTEP_ADM1027            0x60
75 #define LM85_VERSTEP_ADT7463            0x62
76 #define LM85_VERSTEP_ADT7463C           0x6A
77 #define LM85_VERSTEP_EMC6D100_A0        0x60
78 #define LM85_VERSTEP_EMC6D100_A1        0x61
79 #define LM85_VERSTEP_EMC6D102           0x65
80
81 #define LM85_REG_CONFIG                 0x40
82
83 #define LM85_REG_ALARM1                 0x41
84 #define LM85_REG_ALARM2                 0x42
85
86 #define LM85_REG_VID                    0x43
87
88 /* Automated FAN control */
89 #define LM85_REG_AFAN_CONFIG(nr)        (0x5c + (nr))
90 #define LM85_REG_AFAN_RANGE(nr)         (0x5f + (nr))
91 #define LM85_REG_AFAN_SPIKE1            0x62
92 #define LM85_REG_AFAN_SPIKE2            0x63
93 #define LM85_REG_AFAN_MINPWM(nr)        (0x64 + (nr))
94 #define LM85_REG_AFAN_LIMIT(nr)         (0x67 + (nr))
95 #define LM85_REG_AFAN_CRITICAL(nr)      (0x6a + (nr))
96 #define LM85_REG_AFAN_HYST1             0x6d
97 #define LM85_REG_AFAN_HYST2             0x6e
98
99 #define LM85_REG_TACH_MODE              0x74
100 #define LM85_REG_SPINUP_CTL             0x75
101
102 #define ADM1027_REG_TEMP_OFFSET(nr)     (0x70 + (nr))
103 #define ADM1027_REG_CONFIG2             0x73
104 #define ADM1027_REG_INTMASK1            0x74
105 #define ADM1027_REG_INTMASK2            0x75
106 #define ADM1027_REG_EXTEND_ADC1         0x76
107 #define ADM1027_REG_EXTEND_ADC2         0x77
108 #define ADM1027_REG_CONFIG3             0x78
109 #define ADM1027_REG_FAN_PPR             0x7b
110
111 #define ADT7463_REG_THERM               0x79
112 #define ADT7463_REG_THERM_LIMIT         0x7A
113
114 #define EMC6D100_REG_ALARM3             0x7d
115 /* IN5, IN6 and IN7 */
116 #define EMC6D100_REG_IN(nr)             (0x70 + ((nr)-5))
117 #define EMC6D100_REG_IN_MIN(nr)         (0x73 + ((nr)-5) * 2)
118 #define EMC6D100_REG_IN_MAX(nr)         (0x74 + ((nr)-5) * 2)
119 #define EMC6D102_REG_EXTEND_ADC1        0x85
120 #define EMC6D102_REG_EXTEND_ADC2        0x86
121 #define EMC6D102_REG_EXTEND_ADC3        0x87
122 #define EMC6D102_REG_EXTEND_ADC4        0x88
123
124 #define LM85_ALARM_IN0                  0x0001
125 #define LM85_ALARM_IN1                  0x0002
126 #define LM85_ALARM_IN2                  0x0004
127 #define LM85_ALARM_IN3                  0x0008
128 #define LM85_ALARM_TEMP1                0x0010
129 #define LM85_ALARM_TEMP2                0x0020
130 #define LM85_ALARM_TEMP3                0x0040
131 #define LM85_ALARM_ALARM2               0x0080
132 #define LM85_ALARM_IN4                  0x0100
133 #define LM85_ALARM_RESERVED             0x0200
134 #define LM85_ALARM_FAN1                 0x0400
135 #define LM85_ALARM_FAN2                 0x0800
136 #define LM85_ALARM_FAN3                 0x1000
137 #define LM85_ALARM_FAN4                 0x2000
138 #define LM85_ALARM_TEMP1_FAULT          0x4000
139 #define LM85_ALARM_TEMP3_FAULT          0x8000
140
141
142 /* Conversions. Rounding and limit checking is only done on the TO_REG 
143    variants. Note that you should be a bit careful with which arguments
144    these macros are called: arguments may be evaluated more than once.
145  */
146
147 /* IN are scaled acording to built-in resistors */
148 static int lm85_scaling[] = {  /* .001 Volts */
149                 2500, 2250, 3300, 5000, 12000,
150                 3300, 1500, 1800 /*EMC6D100*/
151         };
152 #define SCALE(val,from,to)              (((val)*(to) + ((from)/2))/(from))
153
154 #define INS_TO_REG(n,val)       \
155                 SENSORS_LIMIT(SCALE(val,lm85_scaling[n],192),0,255)
156
157 #define INSEXT_FROM_REG(n,val,ext,scale)        \
158                 SCALE((val)*(scale) + (ext),192*(scale),lm85_scaling[n])
159
160 #define INS_FROM_REG(n,val)   INSEXT_FROM_REG(n,val,0,1)
161
162 /* FAN speed is measured using 90kHz clock */
163 #define FAN_TO_REG(val)         (SENSORS_LIMIT( (val)<=0?0: 5400000/(val),0,65534))
164 #define FAN_FROM_REG(val)       ((val)==0?-1:(val)==0xffff?0:5400000/(val))
165
166 /* Temperature is reported in .001 degC increments */
167 #define TEMP_TO_REG(val)        \
168                 SENSORS_LIMIT(SCALE(val,1000,1),-127,127)
169 #define TEMPEXT_FROM_REG(val,ext,scale) \
170                 SCALE((val)*scale + (ext),scale,1000)
171 #define TEMP_FROM_REG(val)      \
172                 TEMPEXT_FROM_REG(val,0,1)
173
174 #define PWM_TO_REG(val)                 (SENSORS_LIMIT(val,0,255))
175 #define PWM_FROM_REG(val)               (val)
176
177
178 /* ZONEs have the following parameters:
179  *    Limit (low) temp,           1. degC
180  *    Hysteresis (below limit),   1. degC (0-15)
181  *    Range of speed control,     .1 degC (2-80)
182  *    Critical (high) temp,       1. degC
183  *
184  * FAN PWMs have the following parameters:
185  *    Reference Zone,                 1, 2, 3, etc.
186  *    Spinup time,                    .05 sec
187  *    PWM value at limit/low temp,    1 count
188  *    PWM Frequency,                  1. Hz
189  *    PWM is Min or OFF below limit,  flag
190  *    Invert PWM output,              flag
191  *
192  * Some chips filter the temp, others the fan.
193  *    Filter constant (or disabled)   .1 seconds
194  */
195
196 /* These are the zone temperature range encodings in .001 degree C */
197 static int lm85_range_map[] = {   
198                 2000,  2500,  3300,  4000,  5000,  6600,
199                 8000, 10000, 13300, 16000, 20000, 26600,
200                 32000, 40000, 53300, 80000
201         };
202 static int RANGE_TO_REG( int range )
203 {
204         int i;
205
206         if ( range < lm85_range_map[0] ) { 
207                 return 0 ;
208         } else if ( range > lm85_range_map[15] ) {
209                 return 15 ;
210         } else {  /* find closest match */
211                 for ( i = 14 ; i >= 0 ; --i ) {
212                         if ( range > lm85_range_map[i] ) { /* range bracketed */
213                                 if ((lm85_range_map[i+1] - range) < 
214                                         (range - lm85_range_map[i])) {
215                                         i++;
216                                         break;
217                                 }
218                                 break;
219                         }
220                 }
221         }
222         return( i & 0x0f );
223 }
224 #define RANGE_FROM_REG(val) (lm85_range_map[(val)&0x0f])
225
226 /* These are the Acoustic Enhancement, or Temperature smoothing encodings
227  * NOTE: The enable/disable bit is INCLUDED in these encodings as the
228  *       MSB (bit 3, value 8).  If the enable bit is 0, the encoded value
229  *       is ignored, or set to 0.
230  */
231 /* These are the PWM frequency encodings */
232 static int lm85_freq_map[] = { /* .1 Hz */
233                 100, 150, 230, 300, 380, 470, 620, 940
234         };
235 static int FREQ_TO_REG( int freq )
236 {
237         int i;
238
239         if( freq >= lm85_freq_map[7] ) { return 7 ; }
240         for( i = 0 ; i < 7 ; ++i )
241                 if( freq <= lm85_freq_map[i] )
242                         break ;
243         return( i & 0x07 );
244 }
245 #define FREQ_FROM_REG(val) (lm85_freq_map[(val)&0x07])
246
247 /* Since we can't use strings, I'm abusing these numbers
248  *   to stand in for the following meanings:
249  *      1 -- PWM responds to Zone 1
250  *      2 -- PWM responds to Zone 2
251  *      3 -- PWM responds to Zone 3
252  *     23 -- PWM responds to the higher temp of Zone 2 or 3
253  *    123 -- PWM responds to highest of Zone 1, 2, or 3
254  *      0 -- PWM is always at 0% (ie, off)
255  *     -1 -- PWM is always at 100%
256  *     -2 -- PWM responds to manual control
257  */
258
259 static int lm85_zone_map[] = { 1, 2, 3, -1, 0, 23, 123, -2 };
260 #define ZONE_FROM_REG(val) (lm85_zone_map[((val)>>5)&0x07])
261
262 static int ZONE_TO_REG( int zone )
263 {
264         int i;
265
266         for( i = 0 ; i <= 7 ; ++i )
267                 if( zone == lm85_zone_map[i] )
268                         break ;
269         if( i > 7 )   /* Not found. */
270                 i = 3;  /* Always 100% */
271         return( (i & 0x07)<<5 );
272 }
273
274 #define HYST_TO_REG(val) (SENSORS_LIMIT(((val)+500)/1000,0,15))
275 #define HYST_FROM_REG(val) ((val)*1000)
276
277 #define OFFSET_TO_REG(val) (SENSORS_LIMIT((val)/25,-127,127))
278 #define OFFSET_FROM_REG(val) ((val)*25)
279
280 #define PPR_MASK(fan) (0x03<<(fan *2))
281 #define PPR_TO_REG(val,fan) (SENSORS_LIMIT((val)-1,0,3)<<(fan *2))
282 #define PPR_FROM_REG(val,fan) ((((val)>>(fan * 2))&0x03)+1)
283
284 /* Chip sampling rates
285  *
286  * Some sensors are not updated more frequently than once per second
287  *    so it doesn't make sense to read them more often than that.
288  *    We cache the results and return the saved data if the driver
289  *    is called again before a second has elapsed.
290  *
291  * Also, there is significant configuration data for this chip
292  *    given the automatic PWM fan control that is possible.  There
293  *    are about 47 bytes of config data to only 22 bytes of actual
294  *    readings.  So, we keep the config data up to date in the cache
295  *    when it is written and only sample it once every 1 *minute*
296  */
297 #define LM85_DATA_INTERVAL  (HZ + HZ / 2)
298 #define LM85_CONFIG_INTERVAL  (1 * 60 * HZ)
299
300 /* For each registered LM85, we need to keep some data in memory. That
301    data is pointed to by lm85_list[NR]->data. The structure itself is
302    dynamically allocated, at the same time when a new lm85 client is
303    allocated. */
304
305 /* LM85 can automatically adjust fan speeds based on temperature
306  * This structure encapsulates an entire Zone config.  There are
307  * three zones (one for each temperature input) on the lm85
308  */
309 struct lm85_zone {
310         s8 limit;       /* Low temp limit */
311         u8 hyst;        /* Low limit hysteresis. (0-15) */
312         u8 range;       /* Temp range, encoded */
313         s8 critical;    /* "All fans ON" temp limit */
314         u8 off_desired; /* Actual "off" temperature specified.  Preserved 
315                          * to prevent "drift" as other autofan control
316                          * values change.
317                          */
318         u8 max_desired; /* Actual "max" temperature specified.  Preserved 
319                          * to prevent "drift" as other autofan control
320                          * values change.
321                          */
322 };
323
324 struct lm85_autofan {
325         u8 config;      /* Register value */
326         u8 freq;        /* PWM frequency, encoded */
327         u8 min_pwm;     /* Minimum PWM value, encoded */
328         u8 min_off;     /* Min PWM or OFF below "limit", flag */
329 };
330
331 struct lm85_data {
332         struct i2c_client client;
333         struct class_device *class_dev;
334         struct semaphore lock;
335         enum chips type;
336
337         struct semaphore update_lock;
338         int valid;              /* !=0 if following fields are valid */
339         unsigned long last_reading;     /* In jiffies */
340         unsigned long last_config;      /* In jiffies */
341
342         u8 in[8];               /* Register value */
343         u8 in_max[8];           /* Register value */
344         u8 in_min[8];           /* Register value */
345         s8 temp[3];             /* Register value */
346         s8 temp_min[3];         /* Register value */
347         s8 temp_max[3];         /* Register value */
348         s8 temp_offset[3];      /* Register value */
349         u16 fan[4];             /* Register value */
350         u16 fan_min[4];         /* Register value */
351         u8 pwm[3];              /* Register value */
352         u8 spinup_ctl;          /* Register encoding, combined */
353         u8 tach_mode;           /* Register encoding, combined */
354         u8 temp_ext[3];         /* Decoded values */
355         u8 in_ext[8];           /* Decoded values */
356         u8 adc_scale;           /* ADC Extended bits scaling factor */
357         u8 fan_ppr;             /* Register value */
358         u8 smooth[3];           /* Register encoding */
359         u8 vid;                 /* Register value */
360         u8 vrm;                 /* VRM version */
361         u8 syncpwm3;            /* Saved PWM3 for TACH 2,3,4 config */
362         u8 oppoint[3];          /* Register value */
363         u16 tmin_ctl;           /* Register value */
364         unsigned long therm_total; /* Cummulative therm count */
365         u8 therm_limit;         /* Register value */
366         u32 alarms;             /* Register encoding, combined */
367         struct lm85_autofan autofan[3];
368         struct lm85_zone zone[3];
369 };
370
371 static int lm85_attach_adapter(struct i2c_adapter *adapter);
372 static int lm85_detect(struct i2c_adapter *adapter, int address,
373                         int kind);
374 static int lm85_detach_client(struct i2c_client *client);
375
376 static int lm85_read_value(struct i2c_client *client, u8 register);
377 static int lm85_write_value(struct i2c_client *client, u8 register, int value);
378 static struct lm85_data *lm85_update_device(struct device *dev);
379 static void lm85_init_client(struct i2c_client *client);
380
381
382 static struct i2c_driver lm85_driver = {
383         .owner          = THIS_MODULE,
384         .name           = "lm85",
385         .id             = I2C_DRIVERID_LM85,
386         .flags          = I2C_DF_NOTIFY,
387         .attach_adapter = lm85_attach_adapter,
388         .detach_client  = lm85_detach_client,
389 };
390
391
392 /* 4 Fans */
393 static ssize_t show_fan(struct device *dev, char *buf, int nr)
394 {
395         struct lm85_data *data = lm85_update_device(dev);
396         return sprintf(buf,"%d\n", FAN_FROM_REG(data->fan[nr]) );
397 }
398 static ssize_t show_fan_min(struct device *dev, char *buf, int nr)
399 {
400         struct lm85_data *data = lm85_update_device(dev);
401         return sprintf(buf,"%d\n", FAN_FROM_REG(data->fan_min[nr]) );
402 }
403 static ssize_t set_fan_min(struct device *dev, const char *buf, 
404                 size_t count, int nr)
405 {
406         struct i2c_client *client = to_i2c_client(dev);
407         struct lm85_data *data = i2c_get_clientdata(client);
408         long val = simple_strtol(buf, NULL, 10);
409
410         down(&data->update_lock);
411         data->fan_min[nr] = FAN_TO_REG(val);
412         lm85_write_value(client, LM85_REG_FAN_MIN(nr), data->fan_min[nr]);
413         up(&data->update_lock);
414         return count;
415 }
416
417 #define show_fan_offset(offset)                                         \
418 static ssize_t show_fan_##offset (struct device *dev, struct device_attribute *attr, char *buf) \
419 {                                                                       \
420         return show_fan(dev, buf, offset - 1);                          \
421 }                                                                       \
422 static ssize_t show_fan_##offset##_min (struct device *dev, struct device_attribute *attr, char *buf)   \
423 {                                                                       \
424         return show_fan_min(dev, buf, offset - 1);                      \
425 }                                                                       \
426 static ssize_t set_fan_##offset##_min (struct device *dev, struct device_attribute *attr,               \
427         const char *buf, size_t count)                                  \
428 {                                                                       \
429         return set_fan_min(dev, buf, count, offset - 1);                \
430 }                                                                       \
431 static DEVICE_ATTR(fan##offset##_input, S_IRUGO, show_fan_##offset,     \
432                 NULL);                                                  \
433 static DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR,                \
434                 show_fan_##offset##_min, set_fan_##offset##_min);
435
436 show_fan_offset(1);
437 show_fan_offset(2);
438 show_fan_offset(3);
439 show_fan_offset(4);
440
441 /* vid, vrm, alarms */
442
443 static ssize_t show_vid_reg(struct device *dev, struct device_attribute *attr, char *buf)
444 {
445         struct lm85_data *data = lm85_update_device(dev);
446         return sprintf(buf, "%ld\n", (long) vid_from_reg(data->vid, data->vrm));
447 }
448
449 static DEVICE_ATTR(cpu0_vid, S_IRUGO, show_vid_reg, NULL);
450
451 static ssize_t show_vrm_reg(struct device *dev, struct device_attribute *attr, char *buf)
452 {
453         struct lm85_data *data = lm85_update_device(dev);
454         return sprintf(buf, "%ld\n", (long) data->vrm);
455 }
456
457 static ssize_t store_vrm_reg(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
458 {
459         struct i2c_client *client = to_i2c_client(dev);
460         struct lm85_data *data = i2c_get_clientdata(client);
461         u32 val;
462
463         val = simple_strtoul(buf, NULL, 10);
464         data->vrm = val;
465         return count;
466 }
467
468 static DEVICE_ATTR(vrm, S_IRUGO | S_IWUSR, show_vrm_reg, store_vrm_reg);
469
470 static ssize_t show_alarms_reg(struct device *dev, struct device_attribute *attr, char *buf)
471 {
472         struct lm85_data *data = lm85_update_device(dev);
473         return sprintf(buf, "%u\n", data->alarms);
474 }
475
476 static DEVICE_ATTR(alarms, S_IRUGO, show_alarms_reg, NULL);
477
478 /* pwm */
479
480 static ssize_t show_pwm(struct device *dev, char *buf, int nr)
481 {
482         struct lm85_data *data = lm85_update_device(dev);
483         return sprintf(buf,"%d\n", PWM_FROM_REG(data->pwm[nr]) );
484 }
485 static ssize_t set_pwm(struct device *dev, const char *buf, 
486                 size_t count, int nr)
487 {
488         struct i2c_client *client = to_i2c_client(dev);
489         struct lm85_data *data = i2c_get_clientdata(client);
490         long val = simple_strtol(buf, NULL, 10);
491
492         down(&data->update_lock);
493         data->pwm[nr] = PWM_TO_REG(val);
494         lm85_write_value(client, LM85_REG_PWM(nr), data->pwm[nr]);
495         up(&data->update_lock);
496         return count;
497 }
498 static ssize_t show_pwm_enable(struct device *dev, char *buf, int nr)
499 {
500         struct lm85_data *data = lm85_update_device(dev);
501         int     pwm_zone;
502
503         pwm_zone = ZONE_FROM_REG(data->autofan[nr].config);
504         return sprintf(buf,"%d\n", (pwm_zone != 0 && pwm_zone != -1) );
505 }
506
507 #define show_pwm_reg(offset)                                            \
508 static ssize_t show_pwm_##offset (struct device *dev, struct device_attribute *attr, char *buf) \
509 {                                                                       \
510         return show_pwm(dev, buf, offset - 1);                          \
511 }                                                                       \
512 static ssize_t set_pwm_##offset (struct device *dev, struct device_attribute *attr,                     \
513                                  const char *buf, size_t count)         \
514 {                                                                       \
515         return set_pwm(dev, buf, count, offset - 1);                    \
516 }                                                                       \
517 static ssize_t show_pwm_enable##offset (struct device *dev, struct device_attribute *attr, char *buf)   \
518 {                                                                       \
519         return show_pwm_enable(dev, buf, offset - 1);                   \
520 }                                                                       \
521 static DEVICE_ATTR(pwm##offset, S_IRUGO | S_IWUSR,                      \
522                 show_pwm_##offset, set_pwm_##offset);                   \
523 static DEVICE_ATTR(pwm##offset##_enable, S_IRUGO,                       \
524                 show_pwm_enable##offset, NULL);
525
526 show_pwm_reg(1);
527 show_pwm_reg(2);
528 show_pwm_reg(3);
529
530 /* Voltages */
531
532 static ssize_t show_in(struct device *dev, char *buf, int nr)
533 {
534         struct lm85_data *data = lm85_update_device(dev);
535         return sprintf( buf, "%d\n", INSEXT_FROM_REG(nr,
536                                                      data->in[nr],
537                                                      data->in_ext[nr],
538                                                      data->adc_scale) );
539 }
540 static ssize_t show_in_min(struct device *dev, char *buf, int nr)
541 {
542         struct lm85_data *data = lm85_update_device(dev);
543         return sprintf(buf,"%d\n", INS_FROM_REG(nr, data->in_min[nr]) );
544 }
545 static ssize_t set_in_min(struct device *dev, const char *buf, 
546                 size_t count, int nr)
547 {
548         struct i2c_client *client = to_i2c_client(dev);
549         struct lm85_data *data = i2c_get_clientdata(client);
550         long val = simple_strtol(buf, NULL, 10);
551
552         down(&data->update_lock);
553         data->in_min[nr] = INS_TO_REG(nr, val);
554         lm85_write_value(client, LM85_REG_IN_MIN(nr), data->in_min[nr]);
555         up(&data->update_lock);
556         return count;
557 }
558 static ssize_t show_in_max(struct device *dev, char *buf, int nr)
559 {
560         struct lm85_data *data = lm85_update_device(dev);
561         return sprintf(buf,"%d\n", INS_FROM_REG(nr, data->in_max[nr]) );
562 }
563 static ssize_t set_in_max(struct device *dev, const char *buf, 
564                 size_t count, int nr)
565 {
566         struct i2c_client *client = to_i2c_client(dev);
567         struct lm85_data *data = i2c_get_clientdata(client);
568         long val = simple_strtol(buf, NULL, 10);
569
570         down(&data->update_lock);
571         data->in_max[nr] = INS_TO_REG(nr, val);
572         lm85_write_value(client, LM85_REG_IN_MAX(nr), data->in_max[nr]);
573         up(&data->update_lock);
574         return count;
575 }
576 #define show_in_reg(offset)                                             \
577 static ssize_t show_in_##offset (struct device *dev, struct device_attribute *attr, char *buf)          \
578 {                                                                       \
579         return show_in(dev, buf, offset);                               \
580 }                                                                       \
581 static ssize_t show_in_##offset##_min (struct device *dev, struct device_attribute *attr, char *buf)    \
582 {                                                                       \
583         return show_in_min(dev, buf, offset);                           \
584 }                                                                       \
585 static ssize_t show_in_##offset##_max (struct device *dev, struct device_attribute *attr, char *buf)    \
586 {                                                                       \
587         return show_in_max(dev, buf, offset);                           \
588 }                                                                       \
589 static ssize_t set_in_##offset##_min (struct device *dev, struct device_attribute *attr,                \
590         const char *buf, size_t count)                                  \
591 {                                                                       \
592         return set_in_min(dev, buf, count, offset);                     \
593 }                                                                       \
594 static ssize_t set_in_##offset##_max (struct device *dev, struct device_attribute *attr,                \
595         const char *buf, size_t count)                                  \
596 {                                                                       \
597         return set_in_max(dev, buf, count, offset);                     \
598 }                                                                       \
599 static DEVICE_ATTR(in##offset##_input, S_IRUGO, show_in_##offset,       \
600                 NULL);                                                  \
601 static DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR,                 \
602                 show_in_##offset##_min, set_in_##offset##_min);         \
603 static DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR,                 \
604                 show_in_##offset##_max, set_in_##offset##_max);
605
606 show_in_reg(0);
607 show_in_reg(1);
608 show_in_reg(2);
609 show_in_reg(3);
610 show_in_reg(4);
611
612 /* Temps */
613
614 static ssize_t show_temp(struct device *dev, char *buf, int nr)
615 {
616         struct lm85_data *data = lm85_update_device(dev);
617         return sprintf(buf,"%d\n", TEMPEXT_FROM_REG(data->temp[nr],
618                                                     data->temp_ext[nr],
619                                                     data->adc_scale) );
620 }
621 static ssize_t show_temp_min(struct device *dev, char *buf, int nr)
622 {
623         struct lm85_data *data = lm85_update_device(dev);
624         return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp_min[nr]) );
625 }
626 static ssize_t set_temp_min(struct device *dev, const char *buf, 
627                 size_t count, int nr)
628 {
629         struct i2c_client *client = to_i2c_client(dev);
630         struct lm85_data *data = i2c_get_clientdata(client);
631         long val = simple_strtol(buf, NULL, 10);
632
633         down(&data->update_lock);
634         data->temp_min[nr] = TEMP_TO_REG(val);
635         lm85_write_value(client, LM85_REG_TEMP_MIN(nr), data->temp_min[nr]);
636         up(&data->update_lock);
637         return count;
638 }
639 static ssize_t show_temp_max(struct device *dev, char *buf, int nr)
640 {
641         struct lm85_data *data = lm85_update_device(dev);
642         return sprintf(buf,"%d\n", TEMP_FROM_REG(data->temp_max[nr]) );
643 }
644 static ssize_t set_temp_max(struct device *dev, const char *buf, 
645                 size_t count, int nr)
646 {
647         struct i2c_client *client = to_i2c_client(dev);
648         struct lm85_data *data = i2c_get_clientdata(client);
649         long val = simple_strtol(buf, NULL, 10);        
650
651         down(&data->update_lock);
652         data->temp_max[nr] = TEMP_TO_REG(val);
653         lm85_write_value(client, LM85_REG_TEMP_MAX(nr), data->temp_max[nr]);
654         up(&data->update_lock);
655         return count;
656 }
657 #define show_temp_reg(offset)                                           \
658 static ssize_t show_temp_##offset (struct device *dev, struct device_attribute *attr, char *buf)        \
659 {                                                                       \
660         return show_temp(dev, buf, offset - 1);                         \
661 }                                                                       \
662 static ssize_t show_temp_##offset##_min (struct device *dev, struct device_attribute *attr, char *buf)  \
663 {                                                                       \
664         return show_temp_min(dev, buf, offset - 1);                     \
665 }                                                                       \
666 static ssize_t show_temp_##offset##_max (struct device *dev, struct device_attribute *attr, char *buf)  \
667 {                                                                       \
668         return show_temp_max(dev, buf, offset - 1);                     \
669 }                                                                       \
670 static ssize_t set_temp_##offset##_min (struct device *dev, struct device_attribute *attr,              \
671         const char *buf, size_t count)                                  \
672 {                                                                       \
673         return set_temp_min(dev, buf, count, offset - 1);               \
674 }                                                                       \
675 static ssize_t set_temp_##offset##_max (struct device *dev, struct device_attribute *attr,              \
676         const char *buf, size_t count)                                  \
677 {                                                                       \
678         return set_temp_max(dev, buf, count, offset - 1);               \
679 }                                                                       \
680 static DEVICE_ATTR(temp##offset##_input, S_IRUGO, show_temp_##offset,   \
681                 NULL);                                                  \
682 static DEVICE_ATTR(temp##offset##_min, S_IRUGO | S_IWUSR,               \
683                 show_temp_##offset##_min, set_temp_##offset##_min);     \
684 static DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR,               \
685                 show_temp_##offset##_max, set_temp_##offset##_max);
686
687 show_temp_reg(1);
688 show_temp_reg(2);
689 show_temp_reg(3);
690
691
692 /* Automatic PWM control */
693
694 static ssize_t show_pwm_auto_channels(struct device *dev, char *buf, int nr)
695 {
696         struct lm85_data *data = lm85_update_device(dev);
697         return sprintf(buf,"%d\n", ZONE_FROM_REG(data->autofan[nr].config));
698 }
699 static ssize_t set_pwm_auto_channels(struct device *dev, const char *buf,
700         size_t count, int nr)
701 {
702         struct i2c_client *client = to_i2c_client(dev);
703         struct lm85_data *data = i2c_get_clientdata(client);
704         long val = simple_strtol(buf, NULL, 10);   
705
706         down(&data->update_lock);
707         data->autofan[nr].config = (data->autofan[nr].config & (~0xe0))
708                 | ZONE_TO_REG(val) ;
709         lm85_write_value(client, LM85_REG_AFAN_CONFIG(nr),
710                 data->autofan[nr].config);
711         up(&data->update_lock);
712         return count;
713 }
714 static ssize_t show_pwm_auto_pwm_min(struct device *dev, char *buf, int nr)
715 {
716         struct lm85_data *data = lm85_update_device(dev);
717         return sprintf(buf,"%d\n", PWM_FROM_REG(data->autofan[nr].min_pwm));
718 }
719 static ssize_t set_pwm_auto_pwm_min(struct device *dev, const char *buf,
720         size_t count, int nr)
721 {
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         down(&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         up(&data->update_lock);
731         return count;
732 }
733 static ssize_t show_pwm_auto_pwm_minctl(struct device *dev, char *buf, int nr)
734 {
735         struct lm85_data *data = lm85_update_device(dev);
736         return sprintf(buf,"%d\n", data->autofan[nr].min_off);
737 }
738 static ssize_t set_pwm_auto_pwm_minctl(struct device *dev, const char *buf,
739         size_t count, int nr)
740 {
741         struct i2c_client *client = to_i2c_client(dev);
742         struct lm85_data *data = i2c_get_clientdata(client);
743         long val = simple_strtol(buf, NULL, 10);
744
745         down(&data->update_lock);
746         data->autofan[nr].min_off = val;
747         lm85_write_value(client, LM85_REG_AFAN_SPIKE1, data->smooth[0]
748                 | data->syncpwm3
749                 | (data->autofan[0].min_off ? 0x20 : 0)
750                 | (data->autofan[1].min_off ? 0x40 : 0)
751                 | (data->autofan[2].min_off ? 0x80 : 0)
752         );
753         up(&data->update_lock);
754         return count;
755 }
756 static ssize_t show_pwm_auto_pwm_freq(struct device *dev, char *buf, int nr)
757 {
758         struct lm85_data *data = lm85_update_device(dev);
759         return sprintf(buf,"%d\n", FREQ_FROM_REG(data->autofan[nr].freq));
760 }
761 static ssize_t set_pwm_auto_pwm_freq(struct device *dev, const char *buf,
762                 size_t count, int nr)
763 {
764         struct i2c_client *client = to_i2c_client(dev);
765         struct lm85_data *data = i2c_get_clientdata(client);
766         long val = simple_strtol(buf, NULL, 10);
767
768         down(&data->update_lock);
769         data->autofan[nr].freq = FREQ_TO_REG(val);
770         lm85_write_value(client, LM85_REG_AFAN_RANGE(nr),
771                 (data->zone[nr].range << 4)
772                 | data->autofan[nr].freq
773         ); 
774         up(&data->update_lock);
775         return count;
776 }
777 #define pwm_auto(offset)                                                \
778 static ssize_t show_pwm##offset##_auto_channels (struct device *dev, struct device_attribute *attr,     \
779         char *buf)                                                      \
780 {                                                                       \
781         return show_pwm_auto_channels(dev, buf, offset - 1);            \
782 }                                                                       \
783 static ssize_t set_pwm##offset##_auto_channels (struct device *dev, struct device_attribute *attr,      \
784         const char *buf, size_t count)                                  \
785 {                                                                       \
786         return set_pwm_auto_channels(dev, buf, count, offset - 1);      \
787 }                                                                       \
788 static ssize_t show_pwm##offset##_auto_pwm_min (struct device *dev, struct device_attribute *attr,      \
789         char *buf)                                                      \
790 {                                                                       \
791         return show_pwm_auto_pwm_min(dev, buf, offset - 1);             \
792 }                                                                       \
793 static ssize_t set_pwm##offset##_auto_pwm_min (struct device *dev, struct device_attribute *attr,       \
794         const char *buf, size_t count)                                  \
795 {                                                                       \
796         return set_pwm_auto_pwm_min(dev, buf, count, offset - 1);       \
797 }                                                                       \
798 static ssize_t show_pwm##offset##_auto_pwm_minctl (struct device *dev, struct device_attribute *attr,   \
799         char *buf)                                                      \
800 {                                                                       \
801         return show_pwm_auto_pwm_minctl(dev, buf, offset - 1);          \
802 }                                                                       \
803 static ssize_t set_pwm##offset##_auto_pwm_minctl (struct device *dev, struct device_attribute *attr,    \
804         const char *buf, size_t count)                                  \
805 {                                                                       \
806         return set_pwm_auto_pwm_minctl(dev, buf, count, offset - 1);    \
807 }                                                                       \
808 static ssize_t show_pwm##offset##_auto_pwm_freq (struct device *dev, struct device_attribute *attr,     \
809         char *buf)                                                      \
810 {                                                                       \
811         return show_pwm_auto_pwm_freq(dev, buf, offset - 1);            \
812 }                                                                       \
813 static ssize_t set_pwm##offset##_auto_pwm_freq(struct device *dev, struct device_attribute *attr,       \
814         const char *buf, size_t count)                                  \
815 {                                                                       \
816         return set_pwm_auto_pwm_freq(dev, buf, count, offset - 1);      \
817 }                                                                       \
818 static DEVICE_ATTR(pwm##offset##_auto_channels, S_IRUGO | S_IWUSR,      \
819                 show_pwm##offset##_auto_channels,                       \
820                 set_pwm##offset##_auto_channels);                       \
821 static DEVICE_ATTR(pwm##offset##_auto_pwm_min, S_IRUGO | S_IWUSR,       \
822                 show_pwm##offset##_auto_pwm_min,                        \
823                 set_pwm##offset##_auto_pwm_min);                        \
824 static DEVICE_ATTR(pwm##offset##_auto_pwm_minctl, S_IRUGO | S_IWUSR,    \
825                 show_pwm##offset##_auto_pwm_minctl,                     \
826                 set_pwm##offset##_auto_pwm_minctl);                     \
827 static DEVICE_ATTR(pwm##offset##_auto_pwm_freq, S_IRUGO | S_IWUSR,      \
828                 show_pwm##offset##_auto_pwm_freq,                       \
829                 set_pwm##offset##_auto_pwm_freq);              
830 pwm_auto(1);
831 pwm_auto(2);
832 pwm_auto(3);
833
834 /* Temperature settings for automatic PWM control */
835
836 static ssize_t show_temp_auto_temp_off(struct device *dev, char *buf, int nr)
837 {
838         struct lm85_data *data = lm85_update_device(dev);
839         return sprintf(buf,"%d\n", TEMP_FROM_REG(data->zone[nr].limit) -
840                 HYST_FROM_REG(data->zone[nr].hyst));
841 }
842 static ssize_t set_temp_auto_temp_off(struct device *dev, const char *buf,
843         size_t count, int nr)
844 {
845         struct i2c_client *client = to_i2c_client(dev);
846         struct lm85_data *data = i2c_get_clientdata(client);
847         int min;
848         long val = simple_strtol(buf, NULL, 10);
849
850         down(&data->update_lock);
851         min = TEMP_FROM_REG(data->zone[nr].limit);
852         data->zone[nr].off_desired = TEMP_TO_REG(val);
853         data->zone[nr].hyst = HYST_TO_REG(min - val);
854         if ( nr == 0 || nr == 1 ) {
855                 lm85_write_value(client, LM85_REG_AFAN_HYST1,
856                         (data->zone[0].hyst << 4)
857                         | data->zone[1].hyst
858                         );
859         } else {
860                 lm85_write_value(client, LM85_REG_AFAN_HYST2,
861                         (data->zone[2].hyst << 4)
862                 );
863         }
864         up(&data->update_lock);
865         return count;
866 }
867 static ssize_t show_temp_auto_temp_min(struct device *dev, char *buf, int nr)
868 {
869         struct lm85_data *data = lm85_update_device(dev);
870         return sprintf(buf,"%d\n", TEMP_FROM_REG(data->zone[nr].limit) );
871 }
872 static ssize_t set_temp_auto_temp_min(struct device *dev, const char *buf,
873         size_t count, int nr)
874 {
875         struct i2c_client *client = to_i2c_client(dev);
876         struct lm85_data *data = i2c_get_clientdata(client);
877         long val = simple_strtol(buf, NULL, 10);
878
879         down(&data->update_lock);
880         data->zone[nr].limit = TEMP_TO_REG(val);
881         lm85_write_value(client, LM85_REG_AFAN_LIMIT(nr),
882                 data->zone[nr].limit);
883
884 /* Update temp_auto_max and temp_auto_range */
885         data->zone[nr].range = RANGE_TO_REG(
886                 TEMP_FROM_REG(data->zone[nr].max_desired) -
887                 TEMP_FROM_REG(data->zone[nr].limit));
888         lm85_write_value(client, LM85_REG_AFAN_RANGE(nr),
889                 ((data->zone[nr].range & 0x0f) << 4)
890                 | (data->autofan[nr].freq & 0x07));
891
892 /* Update temp_auto_hyst and temp_auto_off */
893         data->zone[nr].hyst = HYST_TO_REG(TEMP_FROM_REG(
894                 data->zone[nr].limit) - TEMP_FROM_REG(
895                 data->zone[nr].off_desired));
896         if ( nr == 0 || nr == 1 ) {
897                 lm85_write_value(client, LM85_REG_AFAN_HYST1,
898                         (data->zone[0].hyst << 4)
899                         | data->zone[1].hyst
900                         );
901         } else {
902                 lm85_write_value(client, LM85_REG_AFAN_HYST2,
903                         (data->zone[2].hyst << 4)
904                 );
905         }
906         up(&data->update_lock);
907         return count;
908 }
909 static ssize_t show_temp_auto_temp_max(struct device *dev, char *buf, int nr)
910 {
911         struct lm85_data *data = lm85_update_device(dev);
912         return sprintf(buf,"%d\n", TEMP_FROM_REG(data->zone[nr].limit) +
913                 RANGE_FROM_REG(data->zone[nr].range));
914 }
915 static ssize_t set_temp_auto_temp_max(struct device *dev, const char *buf,
916         size_t count, int nr)
917 {
918         struct i2c_client *client = to_i2c_client(dev);
919         struct lm85_data *data = i2c_get_clientdata(client);
920         int min;
921         long val = simple_strtol(buf, NULL, 10);
922
923         down(&data->update_lock);
924         min = TEMP_FROM_REG(data->zone[nr].limit);
925         data->zone[nr].max_desired = TEMP_TO_REG(val);
926         data->zone[nr].range = RANGE_TO_REG(
927                 val - min);
928         lm85_write_value(client, LM85_REG_AFAN_RANGE(nr),
929                 ((data->zone[nr].range & 0x0f) << 4)
930                 | (data->autofan[nr].freq & 0x07));
931         up(&data->update_lock);
932         return count;
933 }
934 static ssize_t show_temp_auto_temp_crit(struct device *dev, char *buf, int nr)
935 {
936         struct lm85_data *data = lm85_update_device(dev);
937         return sprintf(buf,"%d\n", TEMP_FROM_REG(data->zone[nr].critical));
938 }
939 static ssize_t set_temp_auto_temp_crit(struct device *dev, const char *buf,
940                 size_t count, int nr)
941 {
942         struct i2c_client *client = to_i2c_client(dev);
943         struct lm85_data *data = i2c_get_clientdata(client);
944         long val = simple_strtol(buf, NULL, 10);
945
946         down(&data->update_lock);
947         data->zone[nr].critical = TEMP_TO_REG(val);
948         lm85_write_value(client, LM85_REG_AFAN_CRITICAL(nr),
949                 data->zone[nr].critical);
950         up(&data->update_lock);
951         return count;
952 }
953 #define temp_auto(offset)                                               \
954 static ssize_t show_temp##offset##_auto_temp_off (struct device *dev, struct device_attribute *attr,    \
955         char *buf)                                                      \
956 {                                                                       \
957         return show_temp_auto_temp_off(dev, buf, offset - 1);           \
958 }                                                                       \
959 static ssize_t set_temp##offset##_auto_temp_off (struct device *dev, struct device_attribute *attr,     \
960         const char *buf, size_t count)                                  \
961 {                                                                       \
962         return set_temp_auto_temp_off(dev, buf, count, offset - 1);     \
963 }                                                                       \
964 static ssize_t show_temp##offset##_auto_temp_min (struct device *dev, struct device_attribute *attr,    \
965         char *buf)                                                      \
966 {                                                                       \
967         return show_temp_auto_temp_min(dev, buf, offset - 1);           \
968 }                                                                       \
969 static ssize_t set_temp##offset##_auto_temp_min (struct device *dev, struct device_attribute *attr,     \
970         const char *buf, size_t count)                                  \
971 {                                                                       \
972         return set_temp_auto_temp_min(dev, buf, count, offset - 1);     \
973 }                                                                       \
974 static ssize_t show_temp##offset##_auto_temp_max (struct device *dev, struct device_attribute *attr,    \
975         char *buf)                                                      \
976 {                                                                       \
977         return show_temp_auto_temp_max(dev, buf, offset - 1);           \
978 }                                                                       \
979 static ssize_t set_temp##offset##_auto_temp_max (struct device *dev, struct device_attribute *attr,     \
980         const char *buf, size_t count)                                  \
981 {                                                                       \
982         return set_temp_auto_temp_max(dev, buf, count, offset - 1);     \
983 }                                                                       \
984 static ssize_t show_temp##offset##_auto_temp_crit (struct device *dev, struct device_attribute *attr,   \
985         char *buf)                                                      \
986 {                                                                       \
987         return show_temp_auto_temp_crit(dev, buf, offset - 1);          \
988 }                                                                       \
989 static ssize_t set_temp##offset##_auto_temp_crit (struct device *dev, struct device_attribute *attr,    \
990         const char *buf, size_t count)                                  \
991 {                                                                       \
992         return set_temp_auto_temp_crit(dev, buf, count, offset - 1);    \
993 }                                                                       \
994 static DEVICE_ATTR(temp##offset##_auto_temp_off, S_IRUGO | S_IWUSR,     \
995                 show_temp##offset##_auto_temp_off,                      \
996                 set_temp##offset##_auto_temp_off);                      \
997 static DEVICE_ATTR(temp##offset##_auto_temp_min, S_IRUGO | S_IWUSR,     \
998                 show_temp##offset##_auto_temp_min,                      \
999                 set_temp##offset##_auto_temp_min);                      \
1000 static DEVICE_ATTR(temp##offset##_auto_temp_max, S_IRUGO | S_IWUSR,     \
1001                 show_temp##offset##_auto_temp_max,                      \
1002                 set_temp##offset##_auto_temp_max);                      \
1003 static DEVICE_ATTR(temp##offset##_auto_temp_crit, S_IRUGO | S_IWUSR,    \
1004                 show_temp##offset##_auto_temp_crit,                     \
1005                 set_temp##offset##_auto_temp_crit);
1006 temp_auto(1);
1007 temp_auto(2);
1008 temp_auto(3);
1009
1010 int lm85_attach_adapter(struct i2c_adapter *adapter)
1011 {
1012         if (!(adapter->class & I2C_CLASS_HWMON))
1013                 return 0;
1014         return i2c_probe(adapter, &addr_data, lm85_detect);
1015 }
1016
1017 int lm85_detect(struct i2c_adapter *adapter, int address,
1018                 int kind)
1019 {
1020         int company, verstep ;
1021         struct i2c_client *new_client = NULL;
1022         struct lm85_data *data;
1023         int err = 0;
1024         const char *type_name = "";
1025
1026         if (!i2c_check_functionality(adapter,
1027                                         I2C_FUNC_SMBUS_BYTE_DATA)) {
1028                 /* We need to be able to do byte I/O */
1029                 goto ERROR0 ;
1030         };
1031
1032         /* OK. For now, we presume we have a valid client. We now create the
1033            client structure, even though we cannot fill it completely yet.
1034            But it allows us to access lm85_{read,write}_value. */
1035
1036         if (!(data = kmalloc(sizeof(struct lm85_data), GFP_KERNEL))) {
1037                 err = -ENOMEM;
1038                 goto ERROR0;
1039         }
1040         memset(data, 0, sizeof(struct lm85_data));
1041
1042         new_client = &data->client;
1043         i2c_set_clientdata(new_client, data);
1044         new_client->addr = address;
1045         new_client->adapter = adapter;
1046         new_client->driver = &lm85_driver;
1047         new_client->flags = 0;
1048
1049         /* Now, we do the remaining detection. */
1050
1051         company = lm85_read_value(new_client, LM85_REG_COMPANY);
1052         verstep = lm85_read_value(new_client, LM85_REG_VERSTEP);
1053
1054         dev_dbg(&adapter->dev, "Detecting device at %d,0x%02x with"
1055                 " COMPANY: 0x%02x and VERSTEP: 0x%02x\n",
1056                 i2c_adapter_id(new_client->adapter), new_client->addr,
1057                 company, verstep);
1058
1059         /* If auto-detecting, Determine the chip type. */
1060         if (kind <= 0) {
1061                 dev_dbg(&adapter->dev, "Autodetecting device at %d,0x%02x ...\n",
1062                         i2c_adapter_id(adapter), address );
1063                 if( company == LM85_COMPANY_NATIONAL
1064                     && verstep == LM85_VERSTEP_LM85C ) {
1065                         kind = lm85c ;
1066                 } else if( company == LM85_COMPANY_NATIONAL
1067                     && verstep == LM85_VERSTEP_LM85B ) {
1068                         kind = lm85b ;
1069                 } else if( company == LM85_COMPANY_NATIONAL
1070                     && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC ) {
1071                         dev_err(&adapter->dev, "Unrecognized version/stepping 0x%02x"
1072                                 " Defaulting to LM85.\n", verstep);
1073                         kind = any_chip ;
1074                 } else if( company == LM85_COMPANY_ANALOG_DEV
1075                     && verstep == LM85_VERSTEP_ADM1027 ) {
1076                         kind = adm1027 ;
1077                 } else if( company == LM85_COMPANY_ANALOG_DEV
1078                     && (verstep == LM85_VERSTEP_ADT7463
1079                          || verstep == LM85_VERSTEP_ADT7463C) ) {
1080                         kind = adt7463 ;
1081                 } else if( company == LM85_COMPANY_ANALOG_DEV
1082                     && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC ) {
1083                         dev_err(&adapter->dev, "Unrecognized version/stepping 0x%02x"
1084                                 " Defaulting to Generic LM85.\n", verstep );
1085                         kind = any_chip ;
1086                 } else if( company == LM85_COMPANY_SMSC
1087                     && (verstep == LM85_VERSTEP_EMC6D100_A0
1088                          || verstep == LM85_VERSTEP_EMC6D100_A1) ) {
1089                         /* Unfortunately, we can't tell a '100 from a '101
1090                          * from the registers.  Since a '101 is a '100
1091                          * in a package with fewer pins and therefore no
1092                          * 3.3V, 1.5V or 1.8V inputs, perhaps if those
1093                          * inputs read 0, then it's a '101.
1094                          */
1095                         kind = emc6d100 ;
1096                 } else if( company == LM85_COMPANY_SMSC
1097                     && verstep == LM85_VERSTEP_EMC6D102) {
1098                         kind = emc6d102 ;
1099                 } else if( company == LM85_COMPANY_SMSC
1100                     && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC) {
1101                         dev_err(&adapter->dev, "lm85: Detected SMSC chip\n");
1102                         dev_err(&adapter->dev, "lm85: Unrecognized version/stepping 0x%02x"
1103                             " Defaulting to Generic LM85.\n", verstep );
1104                         kind = any_chip ;
1105                 } else if( kind == any_chip
1106                     && (verstep & LM85_VERSTEP_VMASK) == LM85_VERSTEP_GENERIC) {
1107                         dev_err(&adapter->dev, "Generic LM85 Version 6 detected\n");
1108                         /* Leave kind as "any_chip" */
1109                 } else {
1110                         dev_dbg(&adapter->dev, "Autodetection failed\n");
1111                         /* Not an LM85 ... */
1112                         if( kind == any_chip ) {  /* User used force=x,y */
1113                                 dev_err(&adapter->dev, "Generic LM85 Version 6 not"
1114                                         " found at %d,0x%02x. Try force_lm85c.\n",
1115                                         i2c_adapter_id(adapter), address );
1116                         }
1117                         err = 0 ;
1118                         goto ERROR1;
1119                 }
1120         }
1121
1122         /* Fill in the chip specific driver values */
1123         if ( kind == any_chip ) {
1124                 type_name = "lm85";
1125         } else if ( kind == lm85b ) {
1126                 type_name = "lm85b";
1127         } else if ( kind == lm85c ) {
1128                 type_name = "lm85c";
1129         } else if ( kind == adm1027 ) {
1130                 type_name = "adm1027";
1131         } else if ( kind == adt7463 ) {
1132                 type_name = "adt7463";
1133         } else if ( kind == emc6d100){
1134                 type_name = "emc6d100";
1135         } else if ( kind == emc6d102 ) {
1136                 type_name = "emc6d102";
1137         }
1138         strlcpy(new_client->name, type_name, I2C_NAME_SIZE);
1139
1140         /* Fill in the remaining client fields */
1141         data->type = kind;
1142         data->valid = 0;
1143         init_MUTEX(&data->update_lock);
1144
1145         /* Tell the I2C layer a new client has arrived */
1146         if ((err = i2c_attach_client(new_client)))
1147                 goto ERROR1;
1148
1149         /* Set the VRM version */
1150         data->vrm = i2c_which_vrm();
1151
1152         /* Initialize the LM85 chip */
1153         lm85_init_client(new_client);
1154
1155         /* Register sysfs hooks */
1156         data->class_dev = hwmon_device_register(&new_client->dev);
1157         if (IS_ERR(data->class_dev)) {
1158                 err = PTR_ERR(data->class_dev);
1159                 goto ERROR2;
1160         }
1161
1162         device_create_file(&new_client->dev, &dev_attr_fan1_input);
1163         device_create_file(&new_client->dev, &dev_attr_fan2_input);
1164         device_create_file(&new_client->dev, &dev_attr_fan3_input);
1165         device_create_file(&new_client->dev, &dev_attr_fan4_input);
1166         device_create_file(&new_client->dev, &dev_attr_fan1_min);
1167         device_create_file(&new_client->dev, &dev_attr_fan2_min);
1168         device_create_file(&new_client->dev, &dev_attr_fan3_min);
1169         device_create_file(&new_client->dev, &dev_attr_fan4_min);
1170         device_create_file(&new_client->dev, &dev_attr_pwm1);
1171         device_create_file(&new_client->dev, &dev_attr_pwm2);
1172         device_create_file(&new_client->dev, &dev_attr_pwm3);
1173         device_create_file(&new_client->dev, &dev_attr_pwm1_enable);
1174         device_create_file(&new_client->dev, &dev_attr_pwm2_enable);
1175         device_create_file(&new_client->dev, &dev_attr_pwm3_enable);
1176         device_create_file(&new_client->dev, &dev_attr_in0_input);
1177         device_create_file(&new_client->dev, &dev_attr_in1_input);
1178         device_create_file(&new_client->dev, &dev_attr_in2_input);
1179         device_create_file(&new_client->dev, &dev_attr_in3_input);
1180         device_create_file(&new_client->dev, &dev_attr_in4_input);
1181         device_create_file(&new_client->dev, &dev_attr_in0_min);
1182         device_create_file(&new_client->dev, &dev_attr_in1_min);
1183         device_create_file(&new_client->dev, &dev_attr_in2_min);
1184         device_create_file(&new_client->dev, &dev_attr_in3_min);
1185         device_create_file(&new_client->dev, &dev_attr_in4_min);
1186         device_create_file(&new_client->dev, &dev_attr_in0_max);
1187         device_create_file(&new_client->dev, &dev_attr_in1_max);
1188         device_create_file(&new_client->dev, &dev_attr_in2_max);
1189         device_create_file(&new_client->dev, &dev_attr_in3_max);
1190         device_create_file(&new_client->dev, &dev_attr_in4_max);
1191         device_create_file(&new_client->dev, &dev_attr_temp1_input);
1192         device_create_file(&new_client->dev, &dev_attr_temp2_input);
1193         device_create_file(&new_client->dev, &dev_attr_temp3_input);
1194         device_create_file(&new_client->dev, &dev_attr_temp1_min);
1195         device_create_file(&new_client->dev, &dev_attr_temp2_min);
1196         device_create_file(&new_client->dev, &dev_attr_temp3_min);
1197         device_create_file(&new_client->dev, &dev_attr_temp1_max);
1198         device_create_file(&new_client->dev, &dev_attr_temp2_max);
1199         device_create_file(&new_client->dev, &dev_attr_temp3_max);
1200         device_create_file(&new_client->dev, &dev_attr_vrm);
1201         device_create_file(&new_client->dev, &dev_attr_cpu0_vid);
1202         device_create_file(&new_client->dev, &dev_attr_alarms);
1203         device_create_file(&new_client->dev, &dev_attr_pwm1_auto_channels);
1204         device_create_file(&new_client->dev, &dev_attr_pwm2_auto_channels);
1205         device_create_file(&new_client->dev, &dev_attr_pwm3_auto_channels);
1206         device_create_file(&new_client->dev, &dev_attr_pwm1_auto_pwm_min);
1207         device_create_file(&new_client->dev, &dev_attr_pwm2_auto_pwm_min);
1208         device_create_file(&new_client->dev, &dev_attr_pwm3_auto_pwm_min);
1209         device_create_file(&new_client->dev, &dev_attr_pwm1_auto_pwm_minctl);
1210         device_create_file(&new_client->dev, &dev_attr_pwm2_auto_pwm_minctl);
1211         device_create_file(&new_client->dev, &dev_attr_pwm3_auto_pwm_minctl);
1212         device_create_file(&new_client->dev, &dev_attr_pwm1_auto_pwm_freq);
1213         device_create_file(&new_client->dev, &dev_attr_pwm2_auto_pwm_freq);
1214         device_create_file(&new_client->dev, &dev_attr_pwm3_auto_pwm_freq);
1215         device_create_file(&new_client->dev, &dev_attr_temp1_auto_temp_off);
1216         device_create_file(&new_client->dev, &dev_attr_temp2_auto_temp_off);
1217         device_create_file(&new_client->dev, &dev_attr_temp3_auto_temp_off);
1218         device_create_file(&new_client->dev, &dev_attr_temp1_auto_temp_min);
1219         device_create_file(&new_client->dev, &dev_attr_temp2_auto_temp_min);
1220         device_create_file(&new_client->dev, &dev_attr_temp3_auto_temp_min);
1221         device_create_file(&new_client->dev, &dev_attr_temp1_auto_temp_max);
1222         device_create_file(&new_client->dev, &dev_attr_temp2_auto_temp_max);
1223         device_create_file(&new_client->dev, &dev_attr_temp3_auto_temp_max);
1224         device_create_file(&new_client->dev, &dev_attr_temp1_auto_temp_crit);
1225         device_create_file(&new_client->dev, &dev_attr_temp2_auto_temp_crit);
1226         device_create_file(&new_client->dev, &dev_attr_temp3_auto_temp_crit);
1227
1228         return 0;
1229
1230         /* Error out and cleanup code */
1231     ERROR2:
1232         i2c_detach_client(new_client);
1233     ERROR1:
1234         kfree(data);
1235     ERROR0:
1236         return err;
1237 }
1238
1239 int lm85_detach_client(struct i2c_client *client)
1240 {
1241         struct lm85_data *data = i2c_get_clientdata(client);
1242         hwmon_device_unregister(data->class_dev);
1243         i2c_detach_client(client);
1244         kfree(data);
1245         return 0;
1246 }
1247
1248
1249 int lm85_read_value(struct i2c_client *client, u8 reg)
1250 {
1251         int res;
1252
1253         /* What size location is it? */
1254         switch( reg ) {
1255         case LM85_REG_FAN(0) :  /* Read WORD data */
1256         case LM85_REG_FAN(1) :
1257         case LM85_REG_FAN(2) :
1258         case LM85_REG_FAN(3) :
1259         case LM85_REG_FAN_MIN(0) :
1260         case LM85_REG_FAN_MIN(1) :
1261         case LM85_REG_FAN_MIN(2) :
1262         case LM85_REG_FAN_MIN(3) :
1263         case LM85_REG_ALARM1 :  /* Read both bytes at once */
1264                 res = i2c_smbus_read_byte_data(client, reg) & 0xff ;
1265                 res |= i2c_smbus_read_byte_data(client, reg+1) << 8 ;
1266                 break ;
1267         case ADT7463_REG_TMIN_CTL1 :  /* Read WORD MSB, LSB */
1268                 res = i2c_smbus_read_byte_data(client, reg) << 8 ;
1269                 res |= i2c_smbus_read_byte_data(client, reg+1) & 0xff ;
1270                 break ;
1271         default:        /* Read BYTE data */
1272                 res = i2c_smbus_read_byte_data(client, reg);
1273                 break ;
1274         }
1275
1276         return res ;
1277 }
1278
1279 int lm85_write_value(struct i2c_client *client, u8 reg, int value)
1280 {
1281         int res ;
1282
1283         switch( reg ) {
1284         case LM85_REG_FAN(0) :  /* Write WORD data */
1285         case LM85_REG_FAN(1) :
1286         case LM85_REG_FAN(2) :
1287         case LM85_REG_FAN(3) :
1288         case LM85_REG_FAN_MIN(0) :
1289         case LM85_REG_FAN_MIN(1) :
1290         case LM85_REG_FAN_MIN(2) :
1291         case LM85_REG_FAN_MIN(3) :
1292         /* NOTE: ALARM is read only, so not included here */
1293                 res = i2c_smbus_write_byte_data(client, reg, value & 0xff) ;
1294                 res |= i2c_smbus_write_byte_data(client, reg+1, (value>>8) & 0xff) ;
1295                 break ;
1296         case ADT7463_REG_TMIN_CTL1 :  /* Write WORD MSB, LSB */
1297                 res = i2c_smbus_write_byte_data(client, reg, (value>>8) & 0xff);
1298                 res |= i2c_smbus_write_byte_data(client, reg+1, value & 0xff) ;
1299                 break ;
1300         default:        /* Write BYTE data */
1301                 res = i2c_smbus_write_byte_data(client, reg, value);
1302                 break ;
1303         }
1304
1305         return res ;
1306 }
1307
1308 void lm85_init_client(struct i2c_client *client)
1309 {
1310         int value;
1311         struct lm85_data *data = i2c_get_clientdata(client);
1312
1313         dev_dbg(&client->dev, "Initializing device\n");
1314
1315         /* Warn if part was not "READY" */
1316         value = lm85_read_value(client, LM85_REG_CONFIG);
1317         dev_dbg(&client->dev, "LM85_REG_CONFIG is: 0x%02x\n", value);
1318         if( value & 0x02 ) {
1319                 dev_err(&client->dev, "Client (%d,0x%02x) config is locked.\n",
1320                             i2c_adapter_id(client->adapter), client->addr );
1321         };
1322         if( ! (value & 0x04) ) {
1323                 dev_err(&client->dev, "Client (%d,0x%02x) is not ready.\n",
1324                             i2c_adapter_id(client->adapter), client->addr );
1325         };
1326         if( value & 0x10
1327             && ( data->type == adm1027
1328                 || data->type == adt7463 ) ) {
1329                 dev_err(&client->dev, "Client (%d,0x%02x) VxI mode is set.  "
1330                         "Please report this to the lm85 maintainer.\n",
1331                             i2c_adapter_id(client->adapter), client->addr );
1332         };
1333
1334         /* WE INTENTIONALLY make no changes to the limits,
1335          *   offsets, pwms, fans and zones.  If they were
1336          *   configured, we don't want to mess with them.
1337          *   If they weren't, the default is 100% PWM, no
1338          *   control and will suffice until 'sensors -s'
1339          *   can be run by the user.
1340          */
1341
1342         /* Start monitoring */
1343         value = lm85_read_value(client, LM85_REG_CONFIG);
1344         /* Try to clear LOCK, Set START, save everything else */
1345         value = (value & ~ 0x02) | 0x01 ;
1346         dev_dbg(&client->dev, "Setting CONFIG to: 0x%02x\n", value);
1347         lm85_write_value(client, LM85_REG_CONFIG, value);
1348 }
1349
1350 static struct lm85_data *lm85_update_device(struct device *dev)
1351 {
1352         struct i2c_client *client = to_i2c_client(dev);
1353         struct lm85_data *data = i2c_get_clientdata(client);
1354         int i;
1355
1356         down(&data->update_lock);
1357
1358         if ( !data->valid ||
1359              time_after(jiffies, data->last_reading + LM85_DATA_INTERVAL) ) {
1360                 /* Things that change quickly */
1361                 dev_dbg(&client->dev, "Reading sensor values\n");
1362                 
1363                 /* Have to read extended bits first to "freeze" the
1364                  * more significant bits that are read later.
1365                  */
1366                 if ( (data->type == adm1027) || (data->type == adt7463) ) {
1367                         int ext1 = lm85_read_value(client,
1368                                                    ADM1027_REG_EXTEND_ADC1);
1369                         int ext2 =  lm85_read_value(client,
1370                                                     ADM1027_REG_EXTEND_ADC2);
1371                         int val = (ext1 << 8) + ext2;
1372
1373                         for(i = 0; i <= 4; i++)
1374                                 data->in_ext[i] = (val>>(i * 2))&0x03;
1375
1376                         for(i = 0; i <= 2; i++)
1377                                 data->temp_ext[i] = (val>>((i + 5) * 2))&0x03;
1378                 }
1379
1380                 /* adc_scale is 2^(number of LSBs). There are 4 extra bits in
1381                    the emc6d102 and 2 in the adt7463 and adm1027. In all
1382                    other chips ext is always 0 and the value of scale is
1383                    irrelevant. So it is left in 4*/
1384                 data->adc_scale = (data->type == emc6d102 ) ? 16 : 4;
1385
1386                 for (i = 0; i <= 4; ++i) {
1387                         data->in[i] =
1388                             lm85_read_value(client, LM85_REG_IN(i));
1389                 }
1390
1391                 for (i = 0; i <= 3; ++i) {
1392                         data->fan[i] =
1393                             lm85_read_value(client, LM85_REG_FAN(i));
1394                 }
1395
1396                 for (i = 0; i <= 2; ++i) {
1397                         data->temp[i] =
1398                             lm85_read_value(client, LM85_REG_TEMP(i));
1399                 }
1400
1401                 for (i = 0; i <= 2; ++i) {
1402                         data->pwm[i] =
1403                             lm85_read_value(client, LM85_REG_PWM(i));
1404                 }
1405
1406                 data->alarms = lm85_read_value(client, LM85_REG_ALARM1);
1407
1408                 if ( data->type == adt7463 ) {
1409                         if( data->therm_total < ULONG_MAX - 256 ) {
1410                             data->therm_total +=
1411                                 lm85_read_value(client, ADT7463_REG_THERM );
1412                         }
1413                 } else if ( data->type == emc6d100 ) {
1414                         /* Three more voltage sensors */
1415                         for (i = 5; i <= 7; ++i) {
1416                                 data->in[i] =
1417                                         lm85_read_value(client, EMC6D100_REG_IN(i));
1418                         }
1419                         /* More alarm bits */
1420                         data->alarms |=
1421                                 lm85_read_value(client, EMC6D100_REG_ALARM3) << 16;
1422                 } else if (data->type == emc6d102 ) {
1423                         /* Have to read LSB bits after the MSB ones because
1424                            the reading of the MSB bits has frozen the
1425                            LSBs (backward from the ADM1027).
1426                          */
1427                         int ext1 = lm85_read_value(client,
1428                                                    EMC6D102_REG_EXTEND_ADC1);
1429                         int ext2 = lm85_read_value(client,
1430                                                    EMC6D102_REG_EXTEND_ADC2);
1431                         int ext3 = lm85_read_value(client,
1432                                                    EMC6D102_REG_EXTEND_ADC3);
1433                         int ext4 = lm85_read_value(client,
1434                                                    EMC6D102_REG_EXTEND_ADC4);
1435                         data->in_ext[0] = ext3 & 0x0f;
1436                         data->in_ext[1] = ext4 & 0x0f;
1437                         data->in_ext[2] = (ext4 >> 4) & 0x0f;
1438                         data->in_ext[3] = (ext3 >> 4) & 0x0f;
1439                         data->in_ext[4] = (ext2 >> 4) & 0x0f;
1440
1441                         data->temp_ext[0] = ext1 & 0x0f;
1442                         data->temp_ext[1] = ext2 & 0x0f;
1443                         data->temp_ext[2] = (ext1 >> 4) & 0x0f;
1444                 }
1445
1446                 data->last_reading = jiffies ;
1447         };  /* last_reading */
1448
1449         if ( !data->valid ||
1450              time_after(jiffies, data->last_config + LM85_CONFIG_INTERVAL) ) {
1451                 /* Things that don't change often */
1452                 dev_dbg(&client->dev, "Reading config values\n");
1453
1454                 for (i = 0; i <= 4; ++i) {
1455                         data->in_min[i] =
1456                             lm85_read_value(client, LM85_REG_IN_MIN(i));
1457                         data->in_max[i] =
1458                             lm85_read_value(client, LM85_REG_IN_MAX(i));
1459                 }
1460
1461                 if ( data->type == emc6d100 ) {
1462                         for (i = 5; i <= 7; ++i) {
1463                                 data->in_min[i] =
1464                                         lm85_read_value(client, EMC6D100_REG_IN_MIN(i));
1465                                 data->in_max[i] =
1466                                         lm85_read_value(client, EMC6D100_REG_IN_MAX(i));
1467                         }
1468                 }
1469
1470                 for (i = 0; i <= 3; ++i) {
1471                         data->fan_min[i] =
1472                             lm85_read_value(client, LM85_REG_FAN_MIN(i));
1473                 }
1474
1475                 for (i = 0; i <= 2; ++i) {
1476                         data->temp_min[i] =
1477                             lm85_read_value(client, LM85_REG_TEMP_MIN(i));
1478                         data->temp_max[i] =
1479                             lm85_read_value(client, LM85_REG_TEMP_MAX(i));
1480                 }
1481
1482                 data->vid = lm85_read_value(client, LM85_REG_VID);
1483
1484                 for (i = 0; i <= 2; ++i) {
1485                         int val ;
1486                         data->autofan[i].config =
1487                             lm85_read_value(client, LM85_REG_AFAN_CONFIG(i));
1488                         val = lm85_read_value(client, LM85_REG_AFAN_RANGE(i));
1489                         data->autofan[i].freq = val & 0x07 ;
1490                         data->zone[i].range = (val >> 4) & 0x0f ;
1491                         data->autofan[i].min_pwm =
1492                             lm85_read_value(client, LM85_REG_AFAN_MINPWM(i));
1493                         data->zone[i].limit =
1494                             lm85_read_value(client, LM85_REG_AFAN_LIMIT(i));
1495                         data->zone[i].critical =
1496                             lm85_read_value(client, LM85_REG_AFAN_CRITICAL(i));
1497                 }
1498
1499                 i = lm85_read_value(client, LM85_REG_AFAN_SPIKE1);
1500                 data->smooth[0] = i & 0x0f ;
1501                 data->syncpwm3 = i & 0x10 ;  /* Save PWM3 config */
1502                 data->autofan[0].min_off = (i & 0x20) != 0 ;
1503                 data->autofan[1].min_off = (i & 0x40) != 0 ;
1504                 data->autofan[2].min_off = (i & 0x80) != 0 ;
1505                 i = lm85_read_value(client, LM85_REG_AFAN_SPIKE2);
1506                 data->smooth[1] = (i>>4) & 0x0f ;
1507                 data->smooth[2] = i & 0x0f ;
1508
1509                 i = lm85_read_value(client, LM85_REG_AFAN_HYST1);
1510                 data->zone[0].hyst = (i>>4) & 0x0f ;
1511                 data->zone[1].hyst = i & 0x0f ;
1512
1513                 i = lm85_read_value(client, LM85_REG_AFAN_HYST2);
1514                 data->zone[2].hyst = (i>>4) & 0x0f ;
1515
1516                 if ( (data->type == lm85b) || (data->type == lm85c) ) {
1517                         data->tach_mode = lm85_read_value(client,
1518                                 LM85_REG_TACH_MODE );
1519                         data->spinup_ctl = lm85_read_value(client,
1520                                 LM85_REG_SPINUP_CTL );
1521                 } else if ( (data->type == adt7463) || (data->type == adm1027) ) {
1522                         if ( data->type == adt7463 ) {
1523                                 for (i = 0; i <= 2; ++i) {
1524                                     data->oppoint[i] = lm85_read_value(client,
1525                                         ADT7463_REG_OPPOINT(i) );
1526                                 }
1527                                 data->tmin_ctl = lm85_read_value(client,
1528                                         ADT7463_REG_TMIN_CTL1 );
1529                                 data->therm_limit = lm85_read_value(client,
1530                                         ADT7463_REG_THERM_LIMIT );
1531                         }
1532                         for (i = 0; i <= 2; ++i) {
1533                             data->temp_offset[i] = lm85_read_value(client,
1534                                 ADM1027_REG_TEMP_OFFSET(i) );
1535                         }
1536                         data->tach_mode = lm85_read_value(client,
1537                                 ADM1027_REG_CONFIG3 );
1538                         data->fan_ppr = lm85_read_value(client,
1539                                 ADM1027_REG_FAN_PPR );
1540                 }
1541         
1542                 data->last_config = jiffies;
1543         };  /* last_config */
1544
1545         data->valid = 1;
1546
1547         up(&data->update_lock);
1548
1549         return data;
1550 }
1551
1552
1553 static int __init sm_lm85_init(void)
1554 {
1555         return i2c_add_driver(&lm85_driver);
1556 }
1557
1558 static void  __exit sm_lm85_exit(void)
1559 {
1560         i2c_del_driver(&lm85_driver);
1561 }
1562
1563 /* Thanks to Richard Barrington for adding the LM85 to sensors-detect.
1564  * Thanks to Margit Schubert-While <margitsw@t-online.de> for help with
1565  *     post 2.7.0 CVS changes.
1566  */
1567 MODULE_LICENSE("GPL");
1568 MODULE_AUTHOR("Philip Pokorny <ppokorny@penguincomputing.com>, Margit Schubert-While <margitsw@t-online.de>, Justin Thiessen <jthiessen@penguincomputing.com");
1569 MODULE_DESCRIPTION("LM85-B, LM85-C driver");
1570
1571 module_init(sm_lm85_init);
1572 module_exit(sm_lm85_exit);