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