trivial: Update my email address
[linux-2.6.git] / drivers / hwmon / f75375s.c
1 /*
2  * f75375s.c - driver for the Fintek F75375/SP and F75373
3  *             hardware monitoring features
4  * Copyright (C) 2006-2007  Riku Voipio
5  *
6  * Datasheets available at:
7  *
8  * f75375:
9  * http://www.fintek.com.tw/files/productfiles/2005111152950.pdf
10  *
11  * f75373:
12  * http://www.fintek.com.tw/files/productfiles/2005111153128.pdf
13  *
14  * This program is free software; you can redistribute it and/or modify
15  * it under the terms of the GNU General Public License as published by
16  * the Free Software Foundation; either version 2 of the License, or
17  * (at your option) any later version.
18  *
19  * This program is distributed in the hope that it will be useful,
20  * but WITHOUT ANY WARRANTY; without even the implied warranty of
21  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
22  * GNU General Public License for more details.
23  *
24  * You should have received a copy of the GNU General Public License
25  * along with this program; if not, write to the Free Software
26  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
27  *
28  */
29
30 #include <linux/module.h>
31 #include <linux/jiffies.h>
32 #include <linux/hwmon.h>
33 #include <linux/hwmon-sysfs.h>
34 #include <linux/i2c.h>
35 #include <linux/err.h>
36 #include <linux/mutex.h>
37 #include <linux/f75375s.h>
38
39 /* Addresses to scan */
40 static const unsigned short normal_i2c[] = { 0x2d, 0x2e, I2C_CLIENT_END };
41
42 /* Insmod parameters */
43 I2C_CLIENT_INSMOD_2(f75373, f75375);
44
45 /* Fintek F75375 registers  */
46 #define F75375_REG_CONFIG0              0x0
47 #define F75375_REG_CONFIG1              0x1
48 #define F75375_REG_CONFIG2              0x2
49 #define F75375_REG_CONFIG3              0x3
50 #define F75375_REG_ADDR                 0x4
51 #define F75375_REG_INTR                 0x31
52 #define F75375_CHIP_ID                  0x5A
53 #define F75375_REG_VERSION              0x5C
54 #define F75375_REG_VENDOR               0x5D
55 #define F75375_REG_FAN_TIMER            0x60
56
57 #define F75375_REG_VOLT(nr)             (0x10 + (nr))
58 #define F75375_REG_VOLT_HIGH(nr)        (0x20 + (nr) * 2)
59 #define F75375_REG_VOLT_LOW(nr)         (0x21 + (nr) * 2)
60
61 #define F75375_REG_TEMP(nr)             (0x14 + (nr))
62 #define F75375_REG_TEMP_HIGH(nr)        (0x28 + (nr) * 2)
63 #define F75375_REG_TEMP_HYST(nr)        (0x29 + (nr) * 2)
64
65 #define F75375_REG_FAN(nr)              (0x16 + (nr) * 2)
66 #define F75375_REG_FAN_MIN(nr)          (0x2C + (nr) * 2)
67 #define F75375_REG_FAN_FULL(nr)         (0x70 + (nr) * 0x10)
68 #define F75375_REG_FAN_PWM_DUTY(nr)     (0x76 + (nr) * 0x10)
69 #define F75375_REG_FAN_PWM_CLOCK(nr)    (0x7D + (nr) * 0x10)
70
71 #define F75375_REG_FAN_EXP(nr)          (0x74 + (nr) * 0x10)
72 #define F75375_REG_FAN_B_TEMP(nr, step) ((0xA0 + (nr) * 0x10) + (step))
73 #define F75375_REG_FAN_B_SPEED(nr, step) \
74         ((0xA5 + (nr) * 0x10) + (step) * 2)
75
76 #define F75375_REG_PWM1_RAISE_DUTY      0x69
77 #define F75375_REG_PWM2_RAISE_DUTY      0x6A
78 #define F75375_REG_PWM1_DROP_DUTY       0x6B
79 #define F75375_REG_PWM2_DROP_DUTY       0x6C
80
81 #define FAN_CTRL_LINEAR(nr)             (4 + nr)
82 #define FAN_CTRL_MODE(nr)               (5 + ((nr) * 2))
83
84 /*
85  * Data structures and manipulation thereof
86  */
87
88 struct f75375_data {
89         unsigned short addr;
90         struct device *hwmon_dev;
91
92         const char *name;
93         int kind;
94         struct mutex update_lock; /* protect register access */
95         char valid;
96         unsigned long last_updated;     /* In jiffies */
97         unsigned long last_limits;      /* In jiffies */
98
99         /* Register values */
100         u8 in[4];
101         u8 in_max[4];
102         u8 in_min[4];
103         u16 fan[2];
104         u16 fan_min[2];
105         u16 fan_full[2];
106         u16 fan_exp[2];
107         u8 fan_timer;
108         u8 pwm[2];
109         u8 pwm_mode[2];
110         u8 pwm_enable[2];
111         s8 temp[2];
112         s8 temp_high[2];
113         s8 temp_max_hyst[2];
114 };
115
116 static int f75375_detect(struct i2c_client *client, int kind,
117                          struct i2c_board_info *info);
118 static int f75375_probe(struct i2c_client *client,
119                         const struct i2c_device_id *id);
120 static int f75375_remove(struct i2c_client *client);
121
122 static const struct i2c_device_id f75375_id[] = {
123         { "f75373", f75373 },
124         { "f75375", f75375 },
125         { }
126 };
127 MODULE_DEVICE_TABLE(i2c, f75375_id);
128
129 static struct i2c_driver f75375_driver = {
130         .class = I2C_CLASS_HWMON,
131         .driver = {
132                 .name = "f75375",
133         },
134         .probe = f75375_probe,
135         .remove = f75375_remove,
136         .id_table = f75375_id,
137         .detect = f75375_detect,
138         .address_data = &addr_data,
139 };
140
141 static inline int f75375_read8(struct i2c_client *client, u8 reg)
142 {
143         return i2c_smbus_read_byte_data(client, reg);
144 }
145
146 /* in most cases, should be called while holding update_lock */
147 static inline u16 f75375_read16(struct i2c_client *client, u8 reg)
148 {
149         return ((i2c_smbus_read_byte_data(client, reg) << 8)
150                 | i2c_smbus_read_byte_data(client, reg + 1));
151 }
152
153 static inline void f75375_write8(struct i2c_client *client, u8 reg,
154                 u8 value)
155 {
156         i2c_smbus_write_byte_data(client, reg, value);
157 }
158
159 static inline void f75375_write16(struct i2c_client *client, u8 reg,
160                 u16 value)
161 {
162         int err = i2c_smbus_write_byte_data(client, reg, (value << 8));
163         if (err)
164                 return;
165         i2c_smbus_write_byte_data(client, reg + 1, (value & 0xFF));
166 }
167
168 static struct f75375_data *f75375_update_device(struct device *dev)
169 {
170         struct i2c_client *client = to_i2c_client(dev);
171         struct f75375_data *data = i2c_get_clientdata(client);
172         int nr;
173
174         mutex_lock(&data->update_lock);
175
176         /* Limit registers cache is refreshed after 60 seconds */
177         if (time_after(jiffies, data->last_limits + 60 * HZ)
178                 || !data->valid) {
179                 for (nr = 0; nr < 2; nr++) {
180                         data->temp_high[nr] =
181                                 f75375_read8(client, F75375_REG_TEMP_HIGH(nr));
182                         data->temp_max_hyst[nr] =
183                                 f75375_read8(client, F75375_REG_TEMP_HYST(nr));
184                         data->fan_full[nr] =
185                                 f75375_read16(client, F75375_REG_FAN_FULL(nr));
186                         data->fan_min[nr] =
187                                 f75375_read16(client, F75375_REG_FAN_MIN(nr));
188                         data->fan_exp[nr] =
189                                 f75375_read16(client, F75375_REG_FAN_EXP(nr));
190                         data->pwm[nr] = f75375_read8(client,
191                                 F75375_REG_FAN_PWM_DUTY(nr));
192
193                 }
194                 for (nr = 0; nr < 4; nr++) {
195                         data->in_max[nr] =
196                                 f75375_read8(client, F75375_REG_VOLT_HIGH(nr));
197                         data->in_min[nr] =
198                                 f75375_read8(client, F75375_REG_VOLT_LOW(nr));
199                 }
200                 data->fan_timer = f75375_read8(client, F75375_REG_FAN_TIMER);
201                 data->last_limits = jiffies;
202         }
203
204         /* Measurement registers cache is refreshed after 2 second */
205         if (time_after(jiffies, data->last_updated + 2 * HZ)
206                 || !data->valid) {
207                 for (nr = 0; nr < 2; nr++) {
208                         data->temp[nr] =
209                                 f75375_read8(client, F75375_REG_TEMP(nr));
210                         data->fan[nr] =
211                                 f75375_read16(client, F75375_REG_FAN(nr));
212                 }
213                 for (nr = 0; nr < 4; nr++)
214                         data->in[nr] =
215                                 f75375_read8(client, F75375_REG_VOLT(nr));
216
217                 data->last_updated = jiffies;
218                 data->valid = 1;
219         }
220
221         mutex_unlock(&data->update_lock);
222         return data;
223 }
224
225 static inline u16 rpm_from_reg(u16 reg)
226 {
227         if (reg == 0 || reg == 0xffff)
228                 return 0;
229         return (1500000 / reg);
230 }
231
232 static inline u16 rpm_to_reg(int rpm)
233 {
234         if (rpm < 367 || rpm > 0xffff)
235                 return 0xffff;
236         return (1500000 / rpm);
237 }
238
239 static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr,
240                 const char *buf, size_t count)
241 {
242         int nr = to_sensor_dev_attr(attr)->index;
243         struct i2c_client *client = to_i2c_client(dev);
244         struct f75375_data *data = i2c_get_clientdata(client);
245         int val = simple_strtoul(buf, NULL, 10);
246
247         mutex_lock(&data->update_lock);
248         data->fan_min[nr] = rpm_to_reg(val);
249         f75375_write16(client, F75375_REG_FAN_MIN(nr), data->fan_min[nr]);
250         mutex_unlock(&data->update_lock);
251         return count;
252 }
253
254 static ssize_t set_fan_exp(struct device *dev, struct device_attribute *attr,
255                 const char *buf, size_t count)
256 {
257         int nr = to_sensor_dev_attr(attr)->index;
258         struct i2c_client *client = to_i2c_client(dev);
259         struct f75375_data *data = i2c_get_clientdata(client);
260         int val = simple_strtoul(buf, NULL, 10);
261
262         mutex_lock(&data->update_lock);
263         data->fan_exp[nr] = rpm_to_reg(val);
264         f75375_write16(client, F75375_REG_FAN_EXP(nr), data->fan_exp[nr]);
265         mutex_unlock(&data->update_lock);
266         return count;
267 }
268
269 static ssize_t set_pwm(struct device *dev, struct device_attribute *attr,
270                 const char *buf, size_t count)
271 {
272         int nr = to_sensor_dev_attr(attr)->index;
273         struct i2c_client *client = to_i2c_client(dev);
274         struct f75375_data *data = i2c_get_clientdata(client);
275         int val = simple_strtoul(buf, NULL, 10);
276
277         mutex_lock(&data->update_lock);
278         data->pwm[nr] = SENSORS_LIMIT(val, 0, 255);
279         f75375_write8(client, F75375_REG_FAN_PWM_DUTY(nr), data->pwm[nr]);
280         mutex_unlock(&data->update_lock);
281         return count;
282 }
283
284 static ssize_t show_pwm_enable(struct device *dev, struct device_attribute
285                 *attr, char *buf)
286 {
287         int nr = to_sensor_dev_attr(attr)->index;
288         struct f75375_data *data = f75375_update_device(dev);
289         return sprintf(buf, "%d\n", data->pwm_enable[nr]);
290 }
291
292 static int set_pwm_enable_direct(struct i2c_client *client, int nr, int val)
293 {
294         struct f75375_data *data = i2c_get_clientdata(client);
295         u8 fanmode;
296
297         if (val < 0 || val > 4)
298                 return -EINVAL;
299
300         fanmode = f75375_read8(client, F75375_REG_FAN_TIMER);
301         fanmode = ~(3 << FAN_CTRL_MODE(nr));
302
303         switch (val) {
304         case 0: /* Full speed */
305                 fanmode  |= (3 << FAN_CTRL_MODE(nr));
306                 data->pwm[nr] = 255;
307                 f75375_write8(client, F75375_REG_FAN_PWM_DUTY(nr),
308                                 data->pwm[nr]);
309                 break;
310         case 1: /* PWM */
311                 fanmode  |= (3 << FAN_CTRL_MODE(nr));
312                 break;
313         case 2: /* AUTOMATIC*/
314                 fanmode  |= (2 << FAN_CTRL_MODE(nr));
315                 break;
316         case 3: /* fan speed */
317                 break;
318         }
319         f75375_write8(client, F75375_REG_FAN_TIMER, fanmode);
320         data->pwm_enable[nr] = val;
321         return 0;
322 }
323
324 static ssize_t set_pwm_enable(struct device *dev, struct device_attribute *attr,
325                 const char *buf, size_t count)
326 {
327         int nr = to_sensor_dev_attr(attr)->index;
328         struct i2c_client *client = to_i2c_client(dev);
329         struct f75375_data *data = i2c_get_clientdata(client);
330         int val = simple_strtoul(buf, NULL, 10);
331         int err = 0;
332
333         mutex_lock(&data->update_lock);
334         err = set_pwm_enable_direct(client, nr, val);
335         mutex_unlock(&data->update_lock);
336         return err ? err : count;
337 }
338
339 static ssize_t set_pwm_mode(struct device *dev, struct device_attribute *attr,
340                 const char *buf, size_t count)
341 {
342         int nr = to_sensor_dev_attr(attr)->index;
343         struct i2c_client *client = to_i2c_client(dev);
344         struct f75375_data *data = i2c_get_clientdata(client);
345         int val = simple_strtoul(buf, NULL, 10);
346         u8 conf = 0;
347
348         if (!(val == 0 || val == 1))
349                 return -EINVAL;
350
351         mutex_lock(&data->update_lock);
352         conf = f75375_read8(client, F75375_REG_CONFIG1);
353         conf = ~(1 << FAN_CTRL_LINEAR(nr));
354
355         if (val == 0)
356                 conf |= (1 << FAN_CTRL_LINEAR(nr)) ;
357
358         f75375_write8(client, F75375_REG_CONFIG1, conf);
359         data->pwm_mode[nr] = val;
360         mutex_unlock(&data->update_lock);
361         return count;
362 }
363
364 static ssize_t show_pwm(struct device *dev, struct device_attribute
365                 *attr, char *buf)
366 {
367         int nr = to_sensor_dev_attr(attr)->index;
368         struct f75375_data *data = f75375_update_device(dev);
369         return sprintf(buf, "%d\n", data->pwm[nr]);
370 }
371
372 static ssize_t show_pwm_mode(struct device *dev, struct device_attribute
373                 *attr, char *buf)
374 {
375         int nr = to_sensor_dev_attr(attr)->index;
376         struct f75375_data *data = f75375_update_device(dev);
377         return sprintf(buf, "%d\n", data->pwm_mode[nr]);
378 }
379
380 #define VOLT_FROM_REG(val) ((val) * 8)
381 #define VOLT_TO_REG(val) ((val) / 8)
382
383 static ssize_t show_in(struct device *dev, struct device_attribute *attr,
384                 char *buf)
385 {
386         int nr = to_sensor_dev_attr(attr)->index;
387         struct f75375_data *data = f75375_update_device(dev);
388         return sprintf(buf, "%d\n", VOLT_FROM_REG(data->in[nr]));
389 }
390
391 static ssize_t show_in_max(struct device *dev, struct device_attribute *attr,
392                 char *buf)
393 {
394         int nr = to_sensor_dev_attr(attr)->index;
395         struct f75375_data *data = f75375_update_device(dev);
396         return sprintf(buf, "%d\n", VOLT_FROM_REG(data->in_max[nr]));
397 }
398
399 static ssize_t show_in_min(struct device *dev, struct device_attribute *attr,
400                 char *buf)
401 {
402         int nr = to_sensor_dev_attr(attr)->index;
403         struct f75375_data *data = f75375_update_device(dev);
404         return sprintf(buf, "%d\n", VOLT_FROM_REG(data->in_min[nr]));
405 }
406
407 static ssize_t set_in_max(struct device *dev, struct device_attribute *attr,
408                 const char *buf, size_t count)
409 {
410         int nr = to_sensor_dev_attr(attr)->index;
411         struct i2c_client *client = to_i2c_client(dev);
412         struct f75375_data *data = i2c_get_clientdata(client);
413         int val = simple_strtoul(buf, NULL, 10);
414         val = SENSORS_LIMIT(VOLT_TO_REG(val), 0, 0xff);
415         mutex_lock(&data->update_lock);
416         data->in_max[nr] = val;
417         f75375_write8(client, F75375_REG_VOLT_HIGH(nr), data->in_max[nr]);
418         mutex_unlock(&data->update_lock);
419         return count;
420 }
421
422 static ssize_t set_in_min(struct device *dev, struct device_attribute *attr,
423                 const char *buf, size_t count)
424 {
425         int nr = to_sensor_dev_attr(attr)->index;
426         struct i2c_client *client = to_i2c_client(dev);
427         struct f75375_data *data = i2c_get_clientdata(client);
428         int val = simple_strtoul(buf, NULL, 10);
429         val = SENSORS_LIMIT(VOLT_TO_REG(val), 0, 0xff);
430         mutex_lock(&data->update_lock);
431         data->in_min[nr] = val;
432         f75375_write8(client, F75375_REG_VOLT_LOW(nr), data->in_min[nr]);
433         mutex_unlock(&data->update_lock);
434         return count;
435 }
436 #define TEMP_FROM_REG(val) ((val) * 1000)
437 #define TEMP_TO_REG(val) ((val) / 1000)
438
439 static ssize_t show_temp(struct device *dev, struct device_attribute *attr,
440                 char *buf)
441 {
442         int nr = to_sensor_dev_attr(attr)->index;
443         struct f75375_data *data = f75375_update_device(dev);
444         return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[nr]));
445 }
446
447 static ssize_t show_temp_max(struct device *dev, struct device_attribute *attr,
448                 char *buf)
449 {
450         int nr = to_sensor_dev_attr(attr)->index;
451         struct f75375_data *data = f75375_update_device(dev);
452         return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_high[nr]));
453 }
454
455 static ssize_t show_temp_max_hyst(struct device *dev,
456                 struct device_attribute *attr, char *buf)
457 {
458         int nr = to_sensor_dev_attr(attr)->index;
459         struct f75375_data *data = f75375_update_device(dev);
460         return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max_hyst[nr]));
461 }
462
463 static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr,
464                 const char *buf, size_t count)
465 {
466         int nr = to_sensor_dev_attr(attr)->index;
467         struct i2c_client *client = to_i2c_client(dev);
468         struct f75375_data *data = i2c_get_clientdata(client);
469         int val = simple_strtol(buf, NULL, 10);
470         val = SENSORS_LIMIT(TEMP_TO_REG(val), 0, 127);
471         mutex_lock(&data->update_lock);
472         data->temp_high[nr] = val;
473         f75375_write8(client, F75375_REG_TEMP_HIGH(nr), data->temp_high[nr]);
474         mutex_unlock(&data->update_lock);
475         return count;
476 }
477
478 static ssize_t set_temp_max_hyst(struct device *dev,
479         struct device_attribute *attr, const char *buf, size_t count)
480 {
481         int nr = to_sensor_dev_attr(attr)->index;
482         struct i2c_client *client = to_i2c_client(dev);
483         struct f75375_data *data = i2c_get_clientdata(client);
484         int val = simple_strtol(buf, NULL, 10);
485         val = SENSORS_LIMIT(TEMP_TO_REG(val), 0, 127);
486         mutex_lock(&data->update_lock);
487         data->temp_max_hyst[nr] = val;
488         f75375_write8(client, F75375_REG_TEMP_HYST(nr),
489                 data->temp_max_hyst[nr]);
490         mutex_unlock(&data->update_lock);
491         return count;
492 }
493
494 #define show_fan(thing) \
495 static ssize_t show_##thing(struct device *dev, struct device_attribute *attr, \
496                         char *buf)\
497 {\
498         int nr = to_sensor_dev_attr(attr)->index;\
499         struct f75375_data *data = f75375_update_device(dev); \
500         return sprintf(buf, "%d\n", rpm_from_reg(data->thing[nr])); \
501 }
502
503 show_fan(fan);
504 show_fan(fan_min);
505 show_fan(fan_full);
506 show_fan(fan_exp);
507
508 static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, show_in, NULL, 0);
509 static SENSOR_DEVICE_ATTR(in0_max, S_IRUGO|S_IWUSR,
510         show_in_max, set_in_max, 0);
511 static SENSOR_DEVICE_ATTR(in0_min, S_IRUGO|S_IWUSR,
512         show_in_min, set_in_min, 0);
513 static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_in, NULL, 1);
514 static SENSOR_DEVICE_ATTR(in1_max, S_IRUGO|S_IWUSR,
515         show_in_max, set_in_max, 1);
516 static SENSOR_DEVICE_ATTR(in1_min, S_IRUGO|S_IWUSR,
517         show_in_min, set_in_min, 1);
518 static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_in, NULL, 2);
519 static SENSOR_DEVICE_ATTR(in2_max, S_IRUGO|S_IWUSR,
520         show_in_max, set_in_max, 2);
521 static SENSOR_DEVICE_ATTR(in2_min, S_IRUGO|S_IWUSR,
522         show_in_min, set_in_min, 2);
523 static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, show_in, NULL, 3);
524 static SENSOR_DEVICE_ATTR(in3_max, S_IRUGO|S_IWUSR,
525         show_in_max, set_in_max, 3);
526 static SENSOR_DEVICE_ATTR(in3_min, S_IRUGO|S_IWUSR,
527         show_in_min, set_in_min, 3);
528 static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, 0);
529 static SENSOR_DEVICE_ATTR(temp1_max_hyst, S_IRUGO|S_IWUSR,
530         show_temp_max_hyst, set_temp_max_hyst, 0);
531 static SENSOR_DEVICE_ATTR(temp1_max, S_IRUGO|S_IWUSR,
532         show_temp_max, set_temp_max, 0);
533 static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp, NULL, 1);
534 static SENSOR_DEVICE_ATTR(temp2_max_hyst, S_IRUGO|S_IWUSR,
535         show_temp_max_hyst, set_temp_max_hyst, 1);
536 static SENSOR_DEVICE_ATTR(temp2_max, S_IRUGO|S_IWUSR,
537         show_temp_max, set_temp_max, 1);
538 static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0);
539 static SENSOR_DEVICE_ATTR(fan1_full, S_IRUGO, show_fan_full, NULL, 0);
540 static SENSOR_DEVICE_ATTR(fan1_min, S_IRUGO|S_IWUSR,
541         show_fan_min, set_fan_min, 0);
542 static SENSOR_DEVICE_ATTR(fan1_exp, S_IRUGO|S_IWUSR,
543         show_fan_exp, set_fan_exp, 0);
544 static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1);
545 static SENSOR_DEVICE_ATTR(fan2_full, S_IRUGO, show_fan_full, NULL, 1);
546 static SENSOR_DEVICE_ATTR(fan2_min, S_IRUGO|S_IWUSR,
547         show_fan_min, set_fan_min, 1);
548 static SENSOR_DEVICE_ATTR(fan2_exp, S_IRUGO|S_IWUSR,
549         show_fan_exp, set_fan_exp, 1);
550 static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO|S_IWUSR,
551         show_pwm, set_pwm, 0);
552 static SENSOR_DEVICE_ATTR(pwm1_enable, S_IRUGO|S_IWUSR,
553         show_pwm_enable, set_pwm_enable, 0);
554 static SENSOR_DEVICE_ATTR(pwm1_mode, S_IRUGO,
555         show_pwm_mode, set_pwm_mode, 0);
556 static SENSOR_DEVICE_ATTR(pwm2, S_IRUGO | S_IWUSR,
557         show_pwm, set_pwm, 1);
558 static SENSOR_DEVICE_ATTR(pwm2_enable, S_IRUGO|S_IWUSR,
559         show_pwm_enable, set_pwm_enable, 1);
560 static SENSOR_DEVICE_ATTR(pwm2_mode, S_IRUGO,
561         show_pwm_mode, set_pwm_mode, 1);
562
563 static struct attribute *f75375_attributes[] = {
564         &sensor_dev_attr_temp1_input.dev_attr.attr,
565         &sensor_dev_attr_temp1_max.dev_attr.attr,
566         &sensor_dev_attr_temp1_max_hyst.dev_attr.attr,
567         &sensor_dev_attr_temp2_input.dev_attr.attr,
568         &sensor_dev_attr_temp2_max.dev_attr.attr,
569         &sensor_dev_attr_temp2_max_hyst.dev_attr.attr,
570         &sensor_dev_attr_fan1_input.dev_attr.attr,
571         &sensor_dev_attr_fan1_full.dev_attr.attr,
572         &sensor_dev_attr_fan1_min.dev_attr.attr,
573         &sensor_dev_attr_fan1_exp.dev_attr.attr,
574         &sensor_dev_attr_fan2_input.dev_attr.attr,
575         &sensor_dev_attr_fan2_full.dev_attr.attr,
576         &sensor_dev_attr_fan2_min.dev_attr.attr,
577         &sensor_dev_attr_fan2_exp.dev_attr.attr,
578         &sensor_dev_attr_pwm1.dev_attr.attr,
579         &sensor_dev_attr_pwm1_enable.dev_attr.attr,
580         &sensor_dev_attr_pwm1_mode.dev_attr.attr,
581         &sensor_dev_attr_pwm2.dev_attr.attr,
582         &sensor_dev_attr_pwm2_enable.dev_attr.attr,
583         &sensor_dev_attr_pwm2_mode.dev_attr.attr,
584         &sensor_dev_attr_in0_input.dev_attr.attr,
585         &sensor_dev_attr_in0_max.dev_attr.attr,
586         &sensor_dev_attr_in0_min.dev_attr.attr,
587         &sensor_dev_attr_in1_input.dev_attr.attr,
588         &sensor_dev_attr_in1_max.dev_attr.attr,
589         &sensor_dev_attr_in1_min.dev_attr.attr,
590         &sensor_dev_attr_in2_input.dev_attr.attr,
591         &sensor_dev_attr_in2_max.dev_attr.attr,
592         &sensor_dev_attr_in2_min.dev_attr.attr,
593         &sensor_dev_attr_in3_input.dev_attr.attr,
594         &sensor_dev_attr_in3_max.dev_attr.attr,
595         &sensor_dev_attr_in3_min.dev_attr.attr,
596         NULL
597 };
598
599 static const struct attribute_group f75375_group = {
600         .attrs = f75375_attributes,
601 };
602
603 static void f75375_init(struct i2c_client *client, struct f75375_data *data,
604                 struct f75375s_platform_data *f75375s_pdata)
605 {
606         int nr;
607         set_pwm_enable_direct(client, 0, f75375s_pdata->pwm_enable[0]);
608         set_pwm_enable_direct(client, 1, f75375s_pdata->pwm_enable[1]);
609         for (nr = 0; nr < 2; nr++) {
610                 data->pwm[nr] = SENSORS_LIMIT(f75375s_pdata->pwm[nr], 0, 255);
611                 f75375_write8(client, F75375_REG_FAN_PWM_DUTY(nr),
612                         data->pwm[nr]);
613         }
614
615 }
616
617 static int f75375_probe(struct i2c_client *client,
618                 const struct i2c_device_id *id)
619 {
620         struct f75375_data *data;
621         struct f75375s_platform_data *f75375s_pdata = client->dev.platform_data;
622         int err;
623
624         if (!i2c_check_functionality(client->adapter,
625                                 I2C_FUNC_SMBUS_BYTE_DATA))
626                 return -EIO;
627         if (!(data = kzalloc(sizeof(struct f75375_data), GFP_KERNEL)))
628                 return -ENOMEM;
629
630         i2c_set_clientdata(client, data);
631         mutex_init(&data->update_lock);
632         data->kind = id->driver_data;
633
634         if ((err = sysfs_create_group(&client->dev.kobj, &f75375_group)))
635                 goto exit_free;
636
637         if (data->kind == f75375) {
638                 err = sysfs_chmod_file(&client->dev.kobj,
639                         &sensor_dev_attr_pwm1_mode.dev_attr.attr,
640                         S_IRUGO | S_IWUSR);
641                 if (err)
642                         goto exit_remove;
643                 err = sysfs_chmod_file(&client->dev.kobj,
644                         &sensor_dev_attr_pwm2_mode.dev_attr.attr,
645                         S_IRUGO | S_IWUSR);
646                 if (err)
647                         goto exit_remove;
648         }
649
650         data->hwmon_dev = hwmon_device_register(&client->dev);
651         if (IS_ERR(data->hwmon_dev)) {
652                 err = PTR_ERR(data->hwmon_dev);
653                 goto exit_remove;
654         }
655
656         if (f75375s_pdata != NULL)
657                 f75375_init(client, data, f75375s_pdata);
658
659         return 0;
660
661 exit_remove:
662         sysfs_remove_group(&client->dev.kobj, &f75375_group);
663 exit_free:
664         kfree(data);
665         i2c_set_clientdata(client, NULL);
666         return err;
667 }
668
669 static int f75375_remove(struct i2c_client *client)
670 {
671         struct f75375_data *data = i2c_get_clientdata(client);
672         hwmon_device_unregister(data->hwmon_dev);
673         sysfs_remove_group(&client->dev.kobj, &f75375_group);
674         kfree(data);
675         i2c_set_clientdata(client, NULL);
676         return 0;
677 }
678
679 /* Return 0 if detection is successful, -ENODEV otherwise */
680 static int f75375_detect(struct i2c_client *client, int kind,
681                          struct i2c_board_info *info)
682 {
683         struct i2c_adapter *adapter = client->adapter;
684         u8 version = 0;
685         const char *name = "";
686
687         if (kind < 0) {
688                 u16 vendid = f75375_read16(client, F75375_REG_VENDOR);
689                 u16 chipid = f75375_read16(client, F75375_CHIP_ID);
690                 version = f75375_read8(client, F75375_REG_VERSION);
691                 if (chipid == 0x0306 && vendid == 0x1934) {
692                         kind = f75375;
693                 } else if (chipid == 0x0204 && vendid == 0x1934) {
694                         kind = f75373;
695                 } else {
696                         dev_err(&adapter->dev,
697                                 "failed,%02X,%02X,%02X\n",
698                                 chipid, version, vendid);
699                         return -ENODEV;
700                 }
701         }
702
703         if (kind == f75375) {
704                 name = "f75375";
705         } else if (kind == f75373) {
706                 name = "f75373";
707         }
708         dev_info(&adapter->dev, "found %s version: %02X\n", name, version);
709         strlcpy(info->type, name, I2C_NAME_SIZE);
710
711         return 0;
712 }
713
714 static int __init sensors_f75375_init(void)
715 {
716         return i2c_add_driver(&f75375_driver);
717 }
718
719 static void __exit sensors_f75375_exit(void)
720 {
721         i2c_del_driver(&f75375_driver);
722 }
723
724 MODULE_AUTHOR("Riku Voipio");
725 MODULE_LICENSE("GPL");
726 MODULE_DESCRIPTION("F75373/F75375 hardware monitoring driver");
727
728 module_init(sensors_f75375_init);
729 module_exit(sensors_f75375_exit);