Version:  2.0.40 2.2.26 2.4.37 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 3.10 3.11 3.12 3.13 3.14 3.15 3.16

Linux/drivers/hwmon/f71805f.c

  1 /*
  2  * f71805f.c - driver for the Fintek F71805F/FG and F71872F/FG Super-I/O
  3  *             chips integrated hardware monitoring features
  4  * Copyright (C) 2005-2006  Jean Delvare <jdelvare@suse.de>
  5  *
  6  * The F71805F/FG is a LPC Super-I/O chip made by Fintek. It integrates
  7  * complete hardware monitoring features: voltage, fan and temperature
  8  * sensors, and manual and automatic fan speed control.
  9  *
 10  * The F71872F/FG is almost the same, with two more voltages monitored,
 11  * and 6 VID inputs.
 12  *
 13  * The F71806F/FG is essentially the same as the F71872F/FG. It even has
 14  * the same chip ID, so the driver can't differentiate between.
 15  *
 16  * This program is free software; you can redistribute it and/or modify
 17  * it under the terms of the GNU General Public License as published by
 18  * the Free Software Foundation; either version 2 of the License, or
 19  * (at your option) any later version.
 20  *
 21  * This program is distributed in the hope that it will be useful,
 22  * but WITHOUT ANY WARRANTY; without even the implied warranty of
 23  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 24  * GNU General Public License for more details.
 25  *
 26  * You should have received a copy of the GNU General Public License
 27  * along with this program; if not, write to the Free Software
 28  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 29  */
 30 
 31 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 32 
 33 #include <linux/module.h>
 34 #include <linux/init.h>
 35 #include <linux/slab.h>
 36 #include <linux/jiffies.h>
 37 #include <linux/platform_device.h>
 38 #include <linux/hwmon.h>
 39 #include <linux/hwmon-sysfs.h>
 40 #include <linux/err.h>
 41 #include <linux/mutex.h>
 42 #include <linux/sysfs.h>
 43 #include <linux/ioport.h>
 44 #include <linux/acpi.h>
 45 #include <linux/io.h>
 46 
 47 static unsigned short force_id;
 48 module_param(force_id, ushort, 0);
 49 MODULE_PARM_DESC(force_id, "Override the detected device ID");
 50 
 51 static struct platform_device *pdev;
 52 
 53 #define DRVNAME "f71805f"
 54 enum kinds { f71805f, f71872f };
 55 
 56 /*
 57  * Super-I/O constants and functions
 58  */
 59 
 60 #define F71805F_LD_HWM          0x04
 61 
 62 #define SIO_REG_LDSEL           0x07    /* Logical device select */
 63 #define SIO_REG_DEVID           0x20    /* Device ID (2 bytes) */
 64 #define SIO_REG_DEVREV          0x22    /* Device revision */
 65 #define SIO_REG_MANID           0x23    /* Fintek ID (2 bytes) */
 66 #define SIO_REG_FNSEL1          0x29    /* Multi Function Select 1 (F71872F) */
 67 #define SIO_REG_ENABLE          0x30    /* Logical device enable */
 68 #define SIO_REG_ADDR            0x60    /* Logical device address (2 bytes) */
 69 
 70 #define SIO_FINTEK_ID           0x1934
 71 #define SIO_F71805F_ID          0x0406
 72 #define SIO_F71872F_ID          0x0341
 73 
 74 static inline int
 75 superio_inb(int base, int reg)
 76 {
 77         outb(reg, base);
 78         return inb(base + 1);
 79 }
 80 
 81 static int
 82 superio_inw(int base, int reg)
 83 {
 84         int val;
 85         outb(reg++, base);
 86         val = inb(base + 1) << 8;
 87         outb(reg, base);
 88         val |= inb(base + 1);
 89         return val;
 90 }
 91 
 92 static inline void
 93 superio_select(int base, int ld)
 94 {
 95         outb(SIO_REG_LDSEL, base);
 96         outb(ld, base + 1);
 97 }
 98 
 99 static inline void
100 superio_enter(int base)
101 {
102         outb(0x87, base);
103         outb(0x87, base);
104 }
105 
106 static inline void
107 superio_exit(int base)
108 {
109         outb(0xaa, base);
110 }
111 
112 /*
113  * ISA constants
114  */
115 
116 #define REGION_LENGTH           8
117 #define ADDR_REG_OFFSET         5
118 #define DATA_REG_OFFSET         6
119 
120 /*
121  * Registers
122  */
123 
124 /* in nr from 0 to 10 (8-bit values) */
125 #define F71805F_REG_IN(nr)              (0x10 + (nr))
126 #define F71805F_REG_IN_HIGH(nr)         ((nr) < 10 ? 0x40 + 2 * (nr) : 0x2E)
127 #define F71805F_REG_IN_LOW(nr)          ((nr) < 10 ? 0x41 + 2 * (nr) : 0x2F)
128 /* fan nr from 0 to 2 (12-bit values, two registers) */
129 #define F71805F_REG_FAN(nr)             (0x20 + 2 * (nr))
130 #define F71805F_REG_FAN_LOW(nr)         (0x28 + 2 * (nr))
131 #define F71805F_REG_FAN_TARGET(nr)      (0x69 + 16 * (nr))
132 #define F71805F_REG_FAN_CTRL(nr)        (0x60 + 16 * (nr))
133 #define F71805F_REG_PWM_FREQ(nr)        (0x63 + 16 * (nr))
134 #define F71805F_REG_PWM_DUTY(nr)        (0x6B + 16 * (nr))
135 /* temp nr from 0 to 2 (8-bit values) */
136 #define F71805F_REG_TEMP(nr)            (0x1B + (nr))
137 #define F71805F_REG_TEMP_HIGH(nr)       (0x54 + 2 * (nr))
138 #define F71805F_REG_TEMP_HYST(nr)       (0x55 + 2 * (nr))
139 #define F71805F_REG_TEMP_MODE           0x01
140 /* pwm/fan pwmnr from 0 to 2, auto point apnr from 0 to 2 */
141 /* map Fintek numbers to our numbers as follows: 9->0, 5->1, 1->2 */
142 #define F71805F_REG_PWM_AUTO_POINT_TEMP(pwmnr, apnr) \
143                                         (0xA0 + 0x10 * (pwmnr) + (2 - (apnr)))
144 #define F71805F_REG_PWM_AUTO_POINT_FAN(pwmnr, apnr) \
145                                         (0xA4 + 0x10 * (pwmnr) + \
146                                                 2 * (2 - (apnr)))
147 
148 #define F71805F_REG_START               0x00
149 /* status nr from 0 to 2 */
150 #define F71805F_REG_STATUS(nr)          (0x36 + (nr))
151 
152 /* individual register bits */
153 #define FAN_CTRL_DC_MODE                0x10
154 #define FAN_CTRL_LATCH_FULL             0x08
155 #define FAN_CTRL_MODE_MASK              0x03
156 #define FAN_CTRL_MODE_SPEED             0x00
157 #define FAN_CTRL_MODE_TEMPERATURE       0x01
158 #define FAN_CTRL_MODE_MANUAL            0x02
159 
160 /*
161  * Data structures and manipulation thereof
162  */
163 
164 struct f71805f_auto_point {
165         u8 temp[3];
166         u16 fan[3];
167 };
168 
169 struct f71805f_data {
170         unsigned short addr;
171         const char *name;
172         struct device *hwmon_dev;
173 
174         struct mutex update_lock;
175         char valid;             /* !=0 if following fields are valid */
176         unsigned long last_updated;     /* In jiffies */
177         unsigned long last_limits;      /* In jiffies */
178 
179         /* Register values */
180         u8 in[11];
181         u8 in_high[11];
182         u8 in_low[11];
183         u16 has_in;
184         u16 fan[3];
185         u16 fan_low[3];
186         u16 fan_target[3];
187         u8 fan_ctrl[3];
188         u8 pwm[3];
189         u8 pwm_freq[3];
190         u8 temp[3];
191         u8 temp_high[3];
192         u8 temp_hyst[3];
193         u8 temp_mode;
194         unsigned long alarms;
195         struct f71805f_auto_point auto_points[3];
196 };
197 
198 struct f71805f_sio_data {
199         enum kinds kind;
200         u8 fnsel1;
201 };
202 
203 static inline long in_from_reg(u8 reg)
204 {
205         return reg * 8;
206 }
207 
208 /* The 2 least significant bits are not used */
209 static inline u8 in_to_reg(long val)
210 {
211         if (val <= 0)
212                 return 0;
213         if (val >= 2016)
214                 return 0xfc;
215         return ((val + 16) / 32) << 2;
216 }
217 
218 /* in0 is downscaled by a factor 2 internally */
219 static inline long in0_from_reg(u8 reg)
220 {
221         return reg * 16;
222 }
223 
224 static inline u8 in0_to_reg(long val)
225 {
226         if (val <= 0)
227                 return 0;
228         if (val >= 4032)
229                 return 0xfc;
230         return ((val + 32) / 64) << 2;
231 }
232 
233 /* The 4 most significant bits are not used */
234 static inline long fan_from_reg(u16 reg)
235 {
236         reg &= 0xfff;
237         if (!reg || reg == 0xfff)
238                 return 0;
239         return 1500000 / reg;
240 }
241 
242 static inline u16 fan_to_reg(long rpm)
243 {
244         /*
245          * If the low limit is set below what the chip can measure,
246          * store the largest possible 12-bit value in the registers,
247          * so that no alarm will ever trigger.
248          */
249         if (rpm < 367)
250                 return 0xfff;
251         return 1500000 / rpm;
252 }
253 
254 static inline unsigned long pwm_freq_from_reg(u8 reg)
255 {
256         unsigned long clock = (reg & 0x80) ? 48000000UL : 1000000UL;
257 
258         reg &= 0x7f;
259         if (reg == 0)
260                 reg++;
261         return clock / (reg << 8);
262 }
263 
264 static inline u8 pwm_freq_to_reg(unsigned long val)
265 {
266         if (val >= 187500)      /* The highest we can do */
267                 return 0x80;
268         if (val >= 1475)        /* Use 48 MHz clock */
269                 return 0x80 | (48000000UL / (val << 8));
270         if (val < 31)           /* The lowest we can do */
271                 return 0x7f;
272         else                    /* Use 1 MHz clock */
273                 return 1000000UL / (val << 8);
274 }
275 
276 static inline int pwm_mode_from_reg(u8 reg)
277 {
278         return !(reg & FAN_CTRL_DC_MODE);
279 }
280 
281 static inline long temp_from_reg(u8 reg)
282 {
283         return reg * 1000;
284 }
285 
286 static inline u8 temp_to_reg(long val)
287 {
288         if (val <= 0)
289                 return 0;
290         if (val >= 1000 * 0xff)
291                 return 0xff;
292         return (val + 500) / 1000;
293 }
294 
295 /*
296  * Device I/O access
297  */
298 
299 /* Must be called with data->update_lock held, except during initialization */
300 static u8 f71805f_read8(struct f71805f_data *data, u8 reg)
301 {
302         outb(reg, data->addr + ADDR_REG_OFFSET);
303         return inb(data->addr + DATA_REG_OFFSET);
304 }
305 
306 /* Must be called with data->update_lock held, except during initialization */
307 static void f71805f_write8(struct f71805f_data *data, u8 reg, u8 val)
308 {
309         outb(reg, data->addr + ADDR_REG_OFFSET);
310         outb(val, data->addr + DATA_REG_OFFSET);
311 }
312 
313 /*
314  * It is important to read the MSB first, because doing so latches the
315  * value of the LSB, so we are sure both bytes belong to the same value.
316  * Must be called with data->update_lock held, except during initialization
317  */
318 static u16 f71805f_read16(struct f71805f_data *data, u8 reg)
319 {
320         u16 val;
321 
322         outb(reg, data->addr + ADDR_REG_OFFSET);
323         val = inb(data->addr + DATA_REG_OFFSET) << 8;
324         outb(++reg, data->addr + ADDR_REG_OFFSET);
325         val |= inb(data->addr + DATA_REG_OFFSET);
326 
327         return val;
328 }
329 
330 /* Must be called with data->update_lock held, except during initialization */
331 static void f71805f_write16(struct f71805f_data *data, u8 reg, u16 val)
332 {
333         outb(reg, data->addr + ADDR_REG_OFFSET);
334         outb(val >> 8, data->addr + DATA_REG_OFFSET);
335         outb(++reg, data->addr + ADDR_REG_OFFSET);
336         outb(val & 0xff, data->addr + DATA_REG_OFFSET);
337 }
338 
339 static struct f71805f_data *f71805f_update_device(struct device *dev)
340 {
341         struct f71805f_data *data = dev_get_drvdata(dev);
342         int nr, apnr;
343 
344         mutex_lock(&data->update_lock);
345 
346         /* Limit registers cache is refreshed after 60 seconds */
347         if (time_after(jiffies, data->last_updated + 60 * HZ)
348          || !data->valid) {
349                 for (nr = 0; nr < 11; nr++) {
350                         if (!(data->has_in & (1 << nr)))
351                                 continue;
352                         data->in_high[nr] = f71805f_read8(data,
353                                             F71805F_REG_IN_HIGH(nr));
354                         data->in_low[nr] = f71805f_read8(data,
355                                            F71805F_REG_IN_LOW(nr));
356                 }
357                 for (nr = 0; nr < 3; nr++) {
358                         data->fan_low[nr] = f71805f_read16(data,
359                                             F71805F_REG_FAN_LOW(nr));
360                         data->fan_target[nr] = f71805f_read16(data,
361                                                F71805F_REG_FAN_TARGET(nr));
362                         data->pwm_freq[nr] = f71805f_read8(data,
363                                              F71805F_REG_PWM_FREQ(nr));
364                 }
365                 for (nr = 0; nr < 3; nr++) {
366                         data->temp_high[nr] = f71805f_read8(data,
367                                               F71805F_REG_TEMP_HIGH(nr));
368                         data->temp_hyst[nr] = f71805f_read8(data,
369                                               F71805F_REG_TEMP_HYST(nr));
370                 }
371                 data->temp_mode = f71805f_read8(data, F71805F_REG_TEMP_MODE);
372                 for (nr = 0; nr < 3; nr++) {
373                         for (apnr = 0; apnr < 3; apnr++) {
374                                 data->auto_points[nr].temp[apnr] =
375                                         f71805f_read8(data,
376                                         F71805F_REG_PWM_AUTO_POINT_TEMP(nr,
377                                                                         apnr));
378                                 data->auto_points[nr].fan[apnr] =
379                                         f71805f_read16(data,
380                                         F71805F_REG_PWM_AUTO_POINT_FAN(nr,
381                                                                        apnr));
382                         }
383                 }
384 
385                 data->last_limits = jiffies;
386         }
387 
388         /* Measurement registers cache is refreshed after 1 second */
389         if (time_after(jiffies, data->last_updated + HZ)
390          || !data->valid) {
391                 for (nr = 0; nr < 11; nr++) {
392                         if (!(data->has_in & (1 << nr)))
393                                 continue;
394                         data->in[nr] = f71805f_read8(data,
395                                        F71805F_REG_IN(nr));
396                 }
397                 for (nr = 0; nr < 3; nr++) {
398                         data->fan[nr] = f71805f_read16(data,
399                                         F71805F_REG_FAN(nr));
400                         data->fan_ctrl[nr] = f71805f_read8(data,
401                                              F71805F_REG_FAN_CTRL(nr));
402                         data->pwm[nr] = f71805f_read8(data,
403                                         F71805F_REG_PWM_DUTY(nr));
404                 }
405                 for (nr = 0; nr < 3; nr++) {
406                         data->temp[nr] = f71805f_read8(data,
407                                          F71805F_REG_TEMP(nr));
408                 }
409                 data->alarms = f71805f_read8(data, F71805F_REG_STATUS(0))
410                         + (f71805f_read8(data, F71805F_REG_STATUS(1)) << 8)
411                         + (f71805f_read8(data, F71805F_REG_STATUS(2)) << 16);
412 
413                 data->last_updated = jiffies;
414                 data->valid = 1;
415         }
416 
417         mutex_unlock(&data->update_lock);
418 
419         return data;
420 }
421 
422 /*
423  * Sysfs interface
424  */
425 
426 static ssize_t show_in0(struct device *dev, struct device_attribute *devattr,
427                         char *buf)
428 {
429         struct f71805f_data *data = f71805f_update_device(dev);
430         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
431         int nr = attr->index;
432 
433         return sprintf(buf, "%ld\n", in0_from_reg(data->in[nr]));
434 }
435 
436 static ssize_t show_in0_max(struct device *dev, struct device_attribute
437                             *devattr, char *buf)
438 {
439         struct f71805f_data *data = f71805f_update_device(dev);
440         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
441         int nr = attr->index;
442 
443         return sprintf(buf, "%ld\n", in0_from_reg(data->in_high[nr]));
444 }
445 
446 static ssize_t show_in0_min(struct device *dev, struct device_attribute
447                             *devattr, char *buf)
448 {
449         struct f71805f_data *data = f71805f_update_device(dev);
450         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
451         int nr = attr->index;
452 
453         return sprintf(buf, "%ld\n", in0_from_reg(data->in_low[nr]));
454 }
455 
456 static ssize_t set_in0_max(struct device *dev, struct device_attribute
457                            *devattr, const char *buf, size_t count)
458 {
459         struct f71805f_data *data = dev_get_drvdata(dev);
460         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
461         int nr = attr->index;
462         long val;
463         int err;
464 
465         err = kstrtol(buf, 10, &val);
466         if (err)
467                 return err;
468 
469         mutex_lock(&data->update_lock);
470         data->in_high[nr] = in0_to_reg(val);
471         f71805f_write8(data, F71805F_REG_IN_HIGH(nr), data->in_high[nr]);
472         mutex_unlock(&data->update_lock);
473 
474         return count;
475 }
476 
477 static ssize_t set_in0_min(struct device *dev, struct device_attribute
478                            *devattr, const char *buf, size_t count)
479 {
480         struct f71805f_data *data = dev_get_drvdata(dev);
481         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
482         int nr = attr->index;
483         long val;
484         int err;
485 
486         err = kstrtol(buf, 10, &val);
487         if (err)
488                 return err;
489 
490         mutex_lock(&data->update_lock);
491         data->in_low[nr] = in0_to_reg(val);
492         f71805f_write8(data, F71805F_REG_IN_LOW(nr), data->in_low[nr]);
493         mutex_unlock(&data->update_lock);
494 
495         return count;
496 }
497 
498 static ssize_t show_in(struct device *dev, struct device_attribute *devattr,
499                        char *buf)
500 {
501         struct f71805f_data *data = f71805f_update_device(dev);
502         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
503         int nr = attr->index;
504 
505         return sprintf(buf, "%ld\n", in_from_reg(data->in[nr]));
506 }
507 
508 static ssize_t show_in_max(struct device *dev, struct device_attribute
509                            *devattr, char *buf)
510 {
511         struct f71805f_data *data = f71805f_update_device(dev);
512         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
513         int nr = attr->index;
514 
515         return sprintf(buf, "%ld\n", in_from_reg(data->in_high[nr]));
516 }
517 
518 static ssize_t show_in_min(struct device *dev, struct device_attribute
519                            *devattr, char *buf)
520 {
521         struct f71805f_data *data = f71805f_update_device(dev);
522         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
523         int nr = attr->index;
524 
525         return sprintf(buf, "%ld\n", in_from_reg(data->in_low[nr]));
526 }
527 
528 static ssize_t set_in_max(struct device *dev, struct device_attribute
529                           *devattr, const char *buf, size_t count)
530 {
531         struct f71805f_data *data = dev_get_drvdata(dev);
532         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
533         int nr = attr->index;
534         long val;
535         int err;
536 
537         err = kstrtol(buf, 10, &val);
538         if (err)
539                 return err;
540 
541         mutex_lock(&data->update_lock);
542         data->in_high[nr] = in_to_reg(val);
543         f71805f_write8(data, F71805F_REG_IN_HIGH(nr), data->in_high[nr]);
544         mutex_unlock(&data->update_lock);
545 
546         return count;
547 }
548 
549 static ssize_t set_in_min(struct device *dev, struct device_attribute
550                           *devattr, const char *buf, size_t count)
551 {
552         struct f71805f_data *data = dev_get_drvdata(dev);
553         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
554         int nr = attr->index;
555         long val;
556         int err;
557 
558         err = kstrtol(buf, 10, &val);
559         if (err)
560                 return err;
561 
562         mutex_lock(&data->update_lock);
563         data->in_low[nr] = in_to_reg(val);
564         f71805f_write8(data, F71805F_REG_IN_LOW(nr), data->in_low[nr]);
565         mutex_unlock(&data->update_lock);
566 
567         return count;
568 }
569 
570 static ssize_t show_fan(struct device *dev, struct device_attribute *devattr,
571                         char *buf)
572 {
573         struct f71805f_data *data = f71805f_update_device(dev);
574         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
575         int nr = attr->index;
576 
577         return sprintf(buf, "%ld\n", fan_from_reg(data->fan[nr]));
578 }
579 
580 static ssize_t show_fan_min(struct device *dev, struct device_attribute
581                             *devattr, char *buf)
582 {
583         struct f71805f_data *data = f71805f_update_device(dev);
584         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
585         int nr = attr->index;
586 
587         return sprintf(buf, "%ld\n", fan_from_reg(data->fan_low[nr]));
588 }
589 
590 static ssize_t show_fan_target(struct device *dev, struct device_attribute
591                                *devattr, char *buf)
592 {
593         struct f71805f_data *data = f71805f_update_device(dev);
594         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
595         int nr = attr->index;
596 
597         return sprintf(buf, "%ld\n", fan_from_reg(data->fan_target[nr]));
598 }
599 
600 static ssize_t set_fan_min(struct device *dev, struct device_attribute
601                            *devattr, const char *buf, size_t count)
602 {
603         struct f71805f_data *data = dev_get_drvdata(dev);
604         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
605         int nr = attr->index;
606         long val;
607         int err;
608 
609         err = kstrtol(buf, 10, &val);
610         if (err)
611                 return err;
612 
613         mutex_lock(&data->update_lock);
614         data->fan_low[nr] = fan_to_reg(val);
615         f71805f_write16(data, F71805F_REG_FAN_LOW(nr), data->fan_low[nr]);
616         mutex_unlock(&data->update_lock);
617 
618         return count;
619 }
620 
621 static ssize_t set_fan_target(struct device *dev, struct device_attribute
622                               *devattr, const char *buf, size_t count)
623 {
624         struct f71805f_data *data = dev_get_drvdata(dev);
625         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
626         int nr = attr->index;
627         long val;
628         int err;
629 
630         err = kstrtol(buf, 10, &val);
631         if (err)
632                 return err;
633 
634         mutex_lock(&data->update_lock);
635         data->fan_target[nr] = fan_to_reg(val);
636         f71805f_write16(data, F71805F_REG_FAN_TARGET(nr),
637                         data->fan_target[nr]);
638         mutex_unlock(&data->update_lock);
639 
640         return count;
641 }
642 
643 static ssize_t show_pwm(struct device *dev, struct device_attribute *devattr,
644                         char *buf)
645 {
646         struct f71805f_data *data = f71805f_update_device(dev);
647         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
648         int nr = attr->index;
649 
650         return sprintf(buf, "%d\n", (int)data->pwm[nr]);
651 }
652 
653 static ssize_t show_pwm_enable(struct device *dev, struct device_attribute
654                                *devattr, char *buf)
655 {
656         struct f71805f_data *data = f71805f_update_device(dev);
657         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
658         int nr = attr->index;
659         int mode;
660 
661         switch (data->fan_ctrl[nr] & FAN_CTRL_MODE_MASK) {
662         case FAN_CTRL_MODE_SPEED:
663                 mode = 3;
664                 break;
665         case FAN_CTRL_MODE_TEMPERATURE:
666                 mode = 2;
667                 break;
668         default: /* MANUAL */
669                 mode = 1;
670         }
671 
672         return sprintf(buf, "%d\n", mode);
673 }
674 
675 static ssize_t show_pwm_freq(struct device *dev, struct device_attribute
676                              *devattr, char *buf)
677 {
678         struct f71805f_data *data = f71805f_update_device(dev);
679         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
680         int nr = attr->index;
681 
682         return sprintf(buf, "%lu\n", pwm_freq_from_reg(data->pwm_freq[nr]));
683 }
684 
685 static ssize_t show_pwm_mode(struct device *dev, struct device_attribute
686                              *devattr, char *buf)
687 {
688         struct f71805f_data *data = f71805f_update_device(dev);
689         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
690         int nr = attr->index;
691 
692         return sprintf(buf, "%d\n", pwm_mode_from_reg(data->fan_ctrl[nr]));
693 }
694 
695 static ssize_t set_pwm(struct device *dev, struct device_attribute *devattr,
696                        const char *buf, size_t count)
697 {
698         struct f71805f_data *data = dev_get_drvdata(dev);
699         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
700         int nr = attr->index;
701         unsigned long val;
702         int err;
703 
704         err = kstrtoul(buf, 10, &val);
705         if (err)
706                 return err;
707 
708         if (val > 255)
709                 return -EINVAL;
710 
711         mutex_lock(&data->update_lock);
712         data->pwm[nr] = val;
713         f71805f_write8(data, F71805F_REG_PWM_DUTY(nr), data->pwm[nr]);
714         mutex_unlock(&data->update_lock);
715 
716         return count;
717 }
718 
719 static struct attribute *f71805f_attr_pwm[];
720 
721 static ssize_t set_pwm_enable(struct device *dev, struct device_attribute
722                               *devattr, const char *buf, size_t count)
723 {
724         struct f71805f_data *data = dev_get_drvdata(dev);
725         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
726         int nr = attr->index;
727         u8 reg;
728         unsigned long val;
729         int err;
730 
731         err = kstrtoul(buf, 10, &val);
732         if (err)
733                 return err;
734 
735         if (val < 1 || val > 3)
736                 return -EINVAL;
737 
738         if (val > 1) { /* Automatic mode, user can't set PWM value */
739                 if (sysfs_chmod_file(&dev->kobj, f71805f_attr_pwm[nr],
740                                      S_IRUGO))
741                         dev_dbg(dev, "chmod -w pwm%d failed\n", nr + 1);
742         }
743 
744         mutex_lock(&data->update_lock);
745         reg = f71805f_read8(data, F71805F_REG_FAN_CTRL(nr))
746             & ~FAN_CTRL_MODE_MASK;
747         switch (val) {
748         case 1:
749                 reg |= FAN_CTRL_MODE_MANUAL;
750                 break;
751         case 2:
752                 reg |= FAN_CTRL_MODE_TEMPERATURE;
753                 break;
754         case 3:
755                 reg |= FAN_CTRL_MODE_SPEED;
756                 break;
757         }
758         data->fan_ctrl[nr] = reg;
759         f71805f_write8(data, F71805F_REG_FAN_CTRL(nr), reg);
760         mutex_unlock(&data->update_lock);
761 
762         if (val == 1) { /* Manual mode, user can set PWM value */
763                 if (sysfs_chmod_file(&dev->kobj, f71805f_attr_pwm[nr],
764                                      S_IRUGO | S_IWUSR))
765                         dev_dbg(dev, "chmod +w pwm%d failed\n", nr + 1);
766         }
767 
768         return count;
769 }
770 
771 static ssize_t set_pwm_freq(struct device *dev, struct device_attribute
772                             *devattr, const char *buf, size_t count)
773 {
774         struct f71805f_data *data = dev_get_drvdata(dev);
775         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
776         int nr = attr->index;
777         unsigned long val;
778         int err;
779 
780         err = kstrtoul(buf, 10, &val);
781         if (err)
782                 return err;
783 
784         mutex_lock(&data->update_lock);
785         data->pwm_freq[nr] = pwm_freq_to_reg(val);
786         f71805f_write8(data, F71805F_REG_PWM_FREQ(nr), data->pwm_freq[nr]);
787         mutex_unlock(&data->update_lock);
788 
789         return count;
790 }
791 
792 static ssize_t show_pwm_auto_point_temp(struct device *dev,
793                                         struct device_attribute *devattr,
794                                         char *buf)
795 {
796         struct f71805f_data *data = dev_get_drvdata(dev);
797         struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
798         int pwmnr = attr->nr;
799         int apnr = attr->index;
800 
801         return sprintf(buf, "%ld\n",
802                        temp_from_reg(data->auto_points[pwmnr].temp[apnr]));
803 }
804 
805 static ssize_t set_pwm_auto_point_temp(struct device *dev,
806                                        struct device_attribute *devattr,
807                                        const char *buf, size_t count)
808 {
809         struct f71805f_data *data = dev_get_drvdata(dev);
810         struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
811         int pwmnr = attr->nr;
812         int apnr = attr->index;
813         unsigned long val;
814         int err;
815 
816         err = kstrtoul(buf, 10, &val);
817         if (err)
818                 return err;
819 
820         mutex_lock(&data->update_lock);
821         data->auto_points[pwmnr].temp[apnr] = temp_to_reg(val);
822         f71805f_write8(data, F71805F_REG_PWM_AUTO_POINT_TEMP(pwmnr, apnr),
823                        data->auto_points[pwmnr].temp[apnr]);
824         mutex_unlock(&data->update_lock);
825 
826         return count;
827 }
828 
829 static ssize_t show_pwm_auto_point_fan(struct device *dev,
830                                        struct device_attribute *devattr,
831                                        char *buf)
832 {
833         struct f71805f_data *data = dev_get_drvdata(dev);
834         struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
835         int pwmnr = attr->nr;
836         int apnr = attr->index;
837 
838         return sprintf(buf, "%ld\n",
839                        fan_from_reg(data->auto_points[pwmnr].fan[apnr]));
840 }
841 
842 static ssize_t set_pwm_auto_point_fan(struct device *dev,
843                                       struct device_attribute *devattr,
844                                       const char *buf, size_t count)
845 {
846         struct f71805f_data *data = dev_get_drvdata(dev);
847         struct sensor_device_attribute_2 *attr = to_sensor_dev_attr_2(devattr);
848         int pwmnr = attr->nr;
849         int apnr = attr->index;
850         unsigned long val;
851         int err;
852 
853         err = kstrtoul(buf, 10, &val);
854         if (err)
855                 return err;
856 
857         mutex_lock(&data->update_lock);
858         data->auto_points[pwmnr].fan[apnr] = fan_to_reg(val);
859         f71805f_write16(data, F71805F_REG_PWM_AUTO_POINT_FAN(pwmnr, apnr),
860                         data->auto_points[pwmnr].fan[apnr]);
861         mutex_unlock(&data->update_lock);
862 
863         return count;
864 }
865 
866 static ssize_t show_temp(struct device *dev, struct device_attribute *devattr,
867                          char *buf)
868 {
869         struct f71805f_data *data = f71805f_update_device(dev);
870         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
871         int nr = attr->index;
872 
873         return sprintf(buf, "%ld\n", temp_from_reg(data->temp[nr]));
874 }
875 
876 static ssize_t show_temp_max(struct device *dev, struct device_attribute
877                              *devattr, char *buf)
878 {
879         struct f71805f_data *data = f71805f_update_device(dev);
880         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
881         int nr = attr->index;
882 
883         return sprintf(buf, "%ld\n", temp_from_reg(data->temp_high[nr]));
884 }
885 
886 static ssize_t show_temp_hyst(struct device *dev, struct device_attribute
887                               *devattr, char *buf)
888 {
889         struct f71805f_data *data = f71805f_update_device(dev);
890         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
891         int nr = attr->index;
892 
893         return sprintf(buf, "%ld\n", temp_from_reg(data->temp_hyst[nr]));
894 }
895 
896 static ssize_t show_temp_type(struct device *dev, struct device_attribute
897                               *devattr, char *buf)
898 {
899         struct f71805f_data *data = f71805f_update_device(dev);
900         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
901         int nr = attr->index;
902 
903         /* 3 is diode, 4 is thermistor */
904         return sprintf(buf, "%u\n", (data->temp_mode & (1 << nr)) ? 3 : 4);
905 }
906 
907 static ssize_t set_temp_max(struct device *dev, struct device_attribute
908                             *devattr, const char *buf, size_t count)
909 {
910         struct f71805f_data *data = dev_get_drvdata(dev);
911         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
912         int nr = attr->index;
913         long val;
914         int err;
915 
916         err = kstrtol(buf, 10, &val);
917         if (err)
918                 return err;
919 
920         mutex_lock(&data->update_lock);
921         data->temp_high[nr] = temp_to_reg(val);
922         f71805f_write8(data, F71805F_REG_TEMP_HIGH(nr), data->temp_high[nr]);
923         mutex_unlock(&data->update_lock);
924 
925         return count;
926 }
927 
928 static ssize_t set_temp_hyst(struct device *dev, struct device_attribute
929                              *devattr, const char *buf, size_t count)
930 {
931         struct f71805f_data *data = dev_get_drvdata(dev);
932         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
933         int nr = attr->index;
934         long val;
935         int err;
936 
937         err = kstrtol(buf, 10, &val);
938         if (err)
939                 return err;
940 
941         mutex_lock(&data->update_lock);
942         data->temp_hyst[nr] = temp_to_reg(val);
943         f71805f_write8(data, F71805F_REG_TEMP_HYST(nr), data->temp_hyst[nr]);
944         mutex_unlock(&data->update_lock);
945 
946         return count;
947 }
948 
949 static ssize_t show_alarms_in(struct device *dev, struct device_attribute
950                               *devattr, char *buf)
951 {
952         struct f71805f_data *data = f71805f_update_device(dev);
953 
954         return sprintf(buf, "%lu\n", data->alarms & 0x7ff);
955 }
956 
957 static ssize_t show_alarms_fan(struct device *dev, struct device_attribute
958                                *devattr, char *buf)
959 {
960         struct f71805f_data *data = f71805f_update_device(dev);
961 
962         return sprintf(buf, "%lu\n", (data->alarms >> 16) & 0x07);
963 }
964 
965 static ssize_t show_alarms_temp(struct device *dev, struct device_attribute
966                                 *devattr, char *buf)
967 {
968         struct f71805f_data *data = f71805f_update_device(dev);
969 
970         return sprintf(buf, "%lu\n", (data->alarms >> 11) & 0x07);
971 }
972 
973 static ssize_t show_alarm(struct device *dev, struct device_attribute
974                           *devattr, char *buf)
975 {
976         struct f71805f_data *data = f71805f_update_device(dev);
977         struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
978         int bitnr = attr->index;
979 
980         return sprintf(buf, "%lu\n", (data->alarms >> bitnr) & 1);
981 }
982 
983 static ssize_t show_name(struct device *dev, struct device_attribute
984                          *devattr, char *buf)
985 {
986         struct f71805f_data *data = dev_get_drvdata(dev);
987 
988         return sprintf(buf, "%s\n", data->name);
989 }
990 
991 static SENSOR_DEVICE_ATTR(in0_input, S_IRUGO, show_in0, NULL, 0);
992 static SENSOR_DEVICE_ATTR(in0_max, S_IRUGO | S_IWUSR,
993                           show_in0_max, set_in0_max, 0);
994 static SENSOR_DEVICE_ATTR(in0_min, S_IRUGO | S_IWUSR,
995                           show_in0_min, set_in0_min, 0);
996 static SENSOR_DEVICE_ATTR(in1_input, S_IRUGO, show_in, NULL, 1);
997 static SENSOR_DEVICE_ATTR(in1_max, S_IRUGO | S_IWUSR,
998                           show_in_max, set_in_max, 1);
999 static SENSOR_DEVICE_ATTR(in1_min, S_IRUGO | S_IWUSR,
1000                           show_in_min, set_in_min, 1);
1001 static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, show_in, NULL, 2);
1002 static SENSOR_DEVICE_ATTR(in2_max, S_IRUGO | S_IWUSR,
1003                           show_in_max, set_in_max, 2);
1004 static SENSOR_DEVICE_ATTR(in2_min, S_IRUGO | S_IWUSR,
1005                           show_in_min, set_in_min, 2);
1006 static SENSOR_DEVICE_ATTR(in3_input, S_IRUGO, show_in, NULL, 3);
1007 static SENSOR_DEVICE_ATTR(in3_max, S_IRUGO | S_IWUSR,
1008                           show_in_max, set_in_max, 3);
1009 static SENSOR_DEVICE_ATTR(in3_min, S_IRUGO | S_IWUSR,
1010                           show_in_min, set_in_min, 3);
1011 static SENSOR_DEVICE_ATTR(in4_input, S_IRUGO, show_in, NULL, 4);
1012 static SENSOR_DEVICE_ATTR(in4_max, S_IRUGO | S_IWUSR,
1013                           show_in_max, set_in_max, 4);
1014 static SENSOR_DEVICE_ATTR(in4_min, S_IRUGO | S_IWUSR,
1015                           show_in_min, set_in_min, 4);
1016 static SENSOR_DEVICE_ATTR(in5_input, S_IRUGO, show_in, NULL, 5);
1017 static SENSOR_DEVICE_ATTR(in5_max, S_IRUGO | S_IWUSR,
1018                           show_in_max, set_in_max, 5);
1019 static SENSOR_DEVICE_ATTR(in5_min, S_IRUGO | S_IWUSR,
1020                           show_in_min, set_in_min, 5);
1021 static SENSOR_DEVICE_ATTR(in6_input, S_IRUGO, show_in, NULL, 6);
1022 static SENSOR_DEVICE_ATTR(in6_max, S_IRUGO | S_IWUSR,
1023                           show_in_max, set_in_max, 6);
1024 static SENSOR_DEVICE_ATTR(in6_min, S_IRUGO | S_IWUSR,
1025                           show_in_min, set_in_min, 6);
1026 static SENSOR_DEVICE_ATTR(in7_input, S_IRUGO, show_in, NULL, 7);
1027 static SENSOR_DEVICE_ATTR(in7_max, S_IRUGO | S_IWUSR,
1028                           show_in_max, set_in_max, 7);
1029 static SENSOR_DEVICE_ATTR(in7_min, S_IRUGO | S_IWUSR,
1030                           show_in_min, set_in_min, 7);
1031 static SENSOR_DEVICE_ATTR(in8_input, S_IRUGO, show_in, NULL, 8);
1032 static SENSOR_DEVICE_ATTR(in8_max, S_IRUGO | S_IWUSR,
1033                           show_in_max, set_in_max, 8);
1034 static SENSOR_DEVICE_ATTR(in8_min, S_IRUGO | S_IWUSR,
1035                           show_in_min, set_in_min, 8);
1036 static SENSOR_DEVICE_ATTR(in9_input, S_IRUGO, show_in0, NULL, 9);
1037 static SENSOR_DEVICE_ATTR(in9_max, S_IRUGO | S_IWUSR,
1038                           show_in0_max, set_in0_max, 9);
1039 static SENSOR_DEVICE_ATTR(in9_min, S_IRUGO | S_IWUSR,
1040                           show_in0_min, set_in0_min, 9);
1041 static SENSOR_DEVICE_ATTR(in10_input, S_IRUGO, show_in0, NULL, 10);
1042 static SENSOR_DEVICE_ATTR(in10_max, S_IRUGO | S_IWUSR,
1043                           show_in0_max, set_in0_max, 10);
1044 static SENSOR_DEVICE_ATTR(in10_min, S_IRUGO | S_IWUSR,
1045                           show_in0_min, set_in0_min, 10);
1046 
1047 static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0);
1048 static SENSOR_DEVICE_ATTR(fan1_min, S_IRUGO | S_IWUSR,
1049                           show_fan_min, set_fan_min, 0);
1050 static SENSOR_DEVICE_ATTR(fan1_target, S_IRUGO | S_IWUSR,
1051                           show_fan_target, set_fan_target, 0);
1052 static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1);
1053 static SENSOR_DEVICE_ATTR(fan2_min, S_IRUGO | S_IWUSR,
1054                           show_fan_min, set_fan_min, 1);
1055 static SENSOR_DEVICE_ATTR(fan2_target, S_IRUGO | S_IWUSR,
1056                           show_fan_target, set_fan_target, 1);
1057 static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 2);
1058 static SENSOR_DEVICE_ATTR(fan3_min, S_IRUGO | S_IWUSR,
1059                           show_fan_min, set_fan_min, 2);
1060 static SENSOR_DEVICE_ATTR(fan3_target, S_IRUGO | S_IWUSR,
1061                           show_fan_target, set_fan_target, 2);
1062 
1063 static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, 0);
1064 static SENSOR_DEVICE_ATTR(temp1_max, S_IRUGO | S_IWUSR,
1065                     show_temp_max, set_temp_max, 0);
1066 static SENSOR_DEVICE_ATTR(temp1_max_hyst, S_IRUGO | S_IWUSR,
1067                     show_temp_hyst, set_temp_hyst, 0);
1068 static SENSOR_DEVICE_ATTR(temp1_type, S_IRUGO, show_temp_type, NULL, 0);
1069 static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp, NULL, 1);
1070 static SENSOR_DEVICE_ATTR(temp2_max, S_IRUGO | S_IWUSR,
1071                     show_temp_max, set_temp_max, 1);
1072 static SENSOR_DEVICE_ATTR(temp2_max_hyst, S_IRUGO | S_IWUSR,
1073                     show_temp_hyst, set_temp_hyst, 1);
1074 static SENSOR_DEVICE_ATTR(temp2_type, S_IRUGO, show_temp_type, NULL, 1);
1075 static SENSOR_DEVICE_ATTR(temp3_input, S_IRUGO, show_temp, NULL, 2);
1076 static SENSOR_DEVICE_ATTR(temp3_max, S_IRUGO | S_IWUSR,
1077                     show_temp_max, set_temp_max, 2);
1078 static SENSOR_DEVICE_ATTR(temp3_max_hyst, S_IRUGO | S_IWUSR,
1079                     show_temp_hyst, set_temp_hyst, 2);
1080 static SENSOR_DEVICE_ATTR(temp3_type, S_IRUGO, show_temp_type, NULL, 2);
1081 
1082 /*
1083  * pwm (value) files are created read-only, write permission is
1084  * then added or removed dynamically as needed
1085  */
1086 static SENSOR_DEVICE_ATTR(pwm1, S_IRUGO, show_pwm, set_pwm, 0);
1087 static SENSOR_DEVICE_ATTR(pwm1_enable, S_IRUGO | S_IWUSR,
1088                           show_pwm_enable, set_pwm_enable, 0);
1089 static SENSOR_DEVICE_ATTR(pwm1_freq, S_IRUGO | S_IWUSR,
1090                           show_pwm_freq, set_pwm_freq, 0);
1091 static SENSOR_DEVICE_ATTR(pwm1_mode, S_IRUGO, show_pwm_mode, NULL, 0);
1092 static SENSOR_DEVICE_ATTR(pwm2, S_IRUGO, show_pwm, set_pwm, 1);
1093 static SENSOR_DEVICE_ATTR(pwm2_enable, S_IRUGO | S_IWUSR,
1094                           show_pwm_enable, set_pwm_enable, 1);
1095 static SENSOR_DEVICE_ATTR(pwm2_freq, S_IRUGO | S_IWUSR,
1096                           show_pwm_freq, set_pwm_freq, 1);
1097 static SENSOR_DEVICE_ATTR(pwm2_mode, S_IRUGO, show_pwm_mode, NULL, 1);
1098 static SENSOR_DEVICE_ATTR(pwm3, S_IRUGO, show_pwm, set_pwm, 2);
1099 static SENSOR_DEVICE_ATTR(pwm3_enable, S_IRUGO | S_IWUSR,
1100                           show_pwm_enable, set_pwm_enable, 2);
1101 static SENSOR_DEVICE_ATTR(pwm3_freq, S_IRUGO | S_IWUSR,
1102                           show_pwm_freq, set_pwm_freq, 2);
1103 static SENSOR_DEVICE_ATTR(pwm3_mode, S_IRUGO, show_pwm_mode, NULL, 2);
1104 
1105 static SENSOR_DEVICE_ATTR_2(pwm1_auto_point1_temp, S_IRUGO | S_IWUSR,
1106                             show_pwm_auto_point_temp, set_pwm_auto_point_temp,
1107                             0, 0);
1108 static SENSOR_DEVICE_ATTR_2(pwm1_auto_point1_fan, S_IRUGO | S_IWUSR,
1109                             show_pwm_auto_point_fan, set_pwm_auto_point_fan,
1110                             0, 0);
1111 static SENSOR_DEVICE_ATTR_2(pwm1_auto_point2_temp, S_IRUGO | S_IWUSR,
1112                             show_pwm_auto_point_temp, set_pwm_auto_point_temp,
1113                             0, 1);
1114 static SENSOR_DEVICE_ATTR_2(pwm1_auto_point2_fan, S_IRUGO | S_IWUSR,
1115                             show_pwm_auto_point_fan, set_pwm_auto_point_fan,
1116                             0, 1);
1117 static SENSOR_DEVICE_ATTR_2(pwm1_auto_point3_temp, S_IRUGO | S_IWUSR,
1118                             show_pwm_auto_point_temp, set_pwm_auto_point_temp,
1119                             0, 2);
1120 static SENSOR_DEVICE_ATTR_2(pwm1_auto_point3_fan, S_IRUGO | S_IWUSR,
1121                             show_pwm_auto_point_fan, set_pwm_auto_point_fan,
1122                             0, 2);
1123 
1124 static SENSOR_DEVICE_ATTR_2(pwm2_auto_point1_temp, S_IRUGO | S_IWUSR,
1125                             show_pwm_auto_point_temp, set_pwm_auto_point_temp,
1126                             1, 0);
1127 static SENSOR_DEVICE_ATTR_2(pwm2_auto_point1_fan, S_IRUGO | S_IWUSR,
1128                             show_pwm_auto_point_fan, set_pwm_auto_point_fan,
1129                             1, 0);
1130 static SENSOR_DEVICE_ATTR_2(pwm2_auto_point2_temp, S_IRUGO | S_IWUSR,
1131                             show_pwm_auto_point_temp, set_pwm_auto_point_temp,
1132                             1, 1);
1133 static SENSOR_DEVICE_ATTR_2(pwm2_auto_point2_fan, S_IRUGO | S_IWUSR,
1134                             show_pwm_auto_point_fan, set_pwm_auto_point_fan,
1135                             1, 1);
1136 static SENSOR_DEVICE_ATTR_2(pwm2_auto_point3_temp, S_IRUGO | S_IWUSR,
1137                             show_pwm_auto_point_temp, set_pwm_auto_point_temp,
1138                             1, 2);
1139 static SENSOR_DEVICE_ATTR_2(pwm2_auto_point3_fan, S_IRUGO | S_IWUSR,
1140                             show_pwm_auto_point_fan, set_pwm_auto_point_fan,
1141                             1, 2);
1142 
1143 static SENSOR_DEVICE_ATTR_2(pwm3_auto_point1_temp, S_IRUGO | S_IWUSR,
1144                             show_pwm_auto_point_temp, set_pwm_auto_point_temp,
1145                             2, 0);
1146 static SENSOR_DEVICE_ATTR_2(pwm3_auto_point1_fan, S_IRUGO | S_IWUSR,
1147                             show_pwm_auto_point_fan, set_pwm_auto_point_fan,
1148                             2, 0);
1149 static SENSOR_DEVICE_ATTR_2(pwm3_auto_point2_temp, S_IRUGO | S_IWUSR,
1150                             show_pwm_auto_point_temp, set_pwm_auto_point_temp,
1151                             2, 1);
1152 static SENSOR_DEVICE_ATTR_2(pwm3_auto_point2_fan, S_IRUGO | S_IWUSR,
1153                             show_pwm_auto_point_fan, set_pwm_auto_point_fan,
1154                             2, 1);
1155 static SENSOR_DEVICE_ATTR_2(pwm3_auto_point3_temp, S_IRUGO | S_IWUSR,
1156                             show_pwm_auto_point_temp, set_pwm_auto_point_temp,
1157                             2, 2);
1158 static SENSOR_DEVICE_ATTR_2(pwm3_auto_point3_fan, S_IRUGO | S_IWUSR,
1159                             show_pwm_auto_point_fan, set_pwm_auto_point_fan,
1160                             2, 2);
1161 
1162 static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 0);
1163 static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 1);
1164 static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 2);
1165 static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3);
1166 static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 4);
1167 static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 5);
1168 static SENSOR_DEVICE_ATTR(in6_alarm, S_IRUGO, show_alarm, NULL, 6);
1169 static SENSOR_DEVICE_ATTR(in7_alarm, S_IRUGO, show_alarm, NULL, 7);
1170 static SENSOR_DEVICE_ATTR(in8_alarm, S_IRUGO, show_alarm, NULL, 8);
1171 static SENSOR_DEVICE_ATTR(in9_alarm, S_IRUGO, show_alarm, NULL, 9);
1172 static SENSOR_DEVICE_ATTR(in10_alarm, S_IRUGO, show_alarm, NULL, 10);
1173 static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 11);
1174 static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 12);
1175 static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 13);
1176 static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 16);
1177 static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 17);
1178 static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, 18);
1179 static DEVICE_ATTR(alarms_in, S_IRUGO, show_alarms_in, NULL);
1180 static DEVICE_ATTR(alarms_fan, S_IRUGO, show_alarms_fan, NULL);
1181 static DEVICE_ATTR(alarms_temp, S_IRUGO, show_alarms_temp, NULL);
1182 
1183 static DEVICE_ATTR(name, S_IRUGO, show_name, NULL);
1184 
1185 static struct attribute *f71805f_attributes[] = {
1186         &sensor_dev_attr_in0_input.dev_attr.attr,
1187         &sensor_dev_attr_in0_max.dev_attr.attr,
1188         &sensor_dev_attr_in0_min.dev_attr.attr,
1189         &sensor_dev_attr_in1_input.dev_attr.attr,
1190         &sensor_dev_attr_in1_max.dev_attr.attr,
1191         &sensor_dev_attr_in1_min.dev_attr.attr,
1192         &sensor_dev_attr_in2_input.dev_attr.attr,
1193         &sensor_dev_attr_in2_max.dev_attr.attr,
1194         &sensor_dev_attr_in2_min.dev_attr.attr,
1195         &sensor_dev_attr_in3_input.dev_attr.attr,
1196         &sensor_dev_attr_in3_max.dev_attr.attr,
1197         &sensor_dev_attr_in3_min.dev_attr.attr,
1198         &sensor_dev_attr_in5_input.dev_attr.attr,
1199         &sensor_dev_attr_in5_max.dev_attr.attr,
1200         &sensor_dev_attr_in5_min.dev_attr.attr,
1201         &sensor_dev_attr_in6_input.dev_attr.attr,
1202         &sensor_dev_attr_in6_max.dev_attr.attr,
1203         &sensor_dev_attr_in6_min.dev_attr.attr,
1204         &sensor_dev_attr_in7_input.dev_attr.attr,
1205         &sensor_dev_attr_in7_max.dev_attr.attr,
1206         &sensor_dev_attr_in7_min.dev_attr.attr,
1207 
1208         &sensor_dev_attr_fan1_input.dev_attr.attr,
1209         &sensor_dev_attr_fan1_min.dev_attr.attr,
1210         &sensor_dev_attr_fan1_alarm.dev_attr.attr,
1211         &sensor_dev_attr_fan1_target.dev_attr.attr,
1212         &sensor_dev_attr_fan2_input.dev_attr.attr,
1213         &sensor_dev_attr_fan2_min.dev_attr.attr,
1214         &sensor_dev_attr_fan2_alarm.dev_attr.attr,
1215         &sensor_dev_attr_fan2_target.dev_attr.attr,
1216         &sensor_dev_attr_fan3_input.dev_attr.attr,
1217         &sensor_dev_attr_fan3_min.dev_attr.attr,
1218         &sensor_dev_attr_fan3_alarm.dev_attr.attr,
1219         &sensor_dev_attr_fan3_target.dev_attr.attr,
1220 
1221         &sensor_dev_attr_pwm1.dev_attr.attr,
1222         &sensor_dev_attr_pwm1_enable.dev_attr.attr,
1223         &sensor_dev_attr_pwm1_mode.dev_attr.attr,
1224         &sensor_dev_attr_pwm2.dev_attr.attr,
1225         &sensor_dev_attr_pwm2_enable.dev_attr.attr,
1226         &sensor_dev_attr_pwm2_mode.dev_attr.attr,
1227         &sensor_dev_attr_pwm3.dev_attr.attr,
1228         &sensor_dev_attr_pwm3_enable.dev_attr.attr,
1229         &sensor_dev_attr_pwm3_mode.dev_attr.attr,
1230 
1231         &sensor_dev_attr_temp1_input.dev_attr.attr,
1232         &sensor_dev_attr_temp1_max.dev_attr.attr,
1233         &sensor_dev_attr_temp1_max_hyst.dev_attr.attr,
1234         &sensor_dev_attr_temp1_type.dev_attr.attr,
1235         &sensor_dev_attr_temp2_input.dev_attr.attr,
1236         &sensor_dev_attr_temp2_max.dev_attr.attr,
1237         &sensor_dev_attr_temp2_max_hyst.dev_attr.attr,
1238         &sensor_dev_attr_temp2_type.dev_attr.attr,
1239         &sensor_dev_attr_temp3_input.dev_attr.attr,
1240         &sensor_dev_attr_temp3_max.dev_attr.attr,
1241         &sensor_dev_attr_temp3_max_hyst.dev_attr.attr,
1242         &sensor_dev_attr_temp3_type.dev_attr.attr,
1243 
1244         &sensor_dev_attr_pwm1_auto_point1_temp.dev_attr.attr,
1245         &sensor_dev_attr_pwm1_auto_point1_fan.dev_attr.attr,
1246         &sensor_dev_attr_pwm1_auto_point2_temp.dev_attr.attr,
1247         &sensor_dev_attr_pwm1_auto_point2_fan.dev_attr.attr,
1248         &sensor_dev_attr_pwm1_auto_point3_temp.dev_attr.attr,
1249         &sensor_dev_attr_pwm1_auto_point3_fan.dev_attr.attr,
1250         &sensor_dev_attr_pwm2_auto_point1_temp.dev_attr.attr,
1251         &sensor_dev_attr_pwm2_auto_point1_fan.dev_attr.attr,
1252         &sensor_dev_attr_pwm2_auto_point2_temp.dev_attr.attr,
1253         &sensor_dev_attr_pwm2_auto_point2_fan.dev_attr.attr,
1254         &sensor_dev_attr_pwm2_auto_point3_temp.dev_attr.attr,
1255         &sensor_dev_attr_pwm2_auto_point3_fan.dev_attr.attr,
1256         &sensor_dev_attr_pwm3_auto_point1_temp.dev_attr.attr,
1257         &sensor_dev_attr_pwm3_auto_point1_fan.dev_attr.attr,
1258         &sensor_dev_attr_pwm3_auto_point2_temp.dev_attr.attr,
1259         &sensor_dev_attr_pwm3_auto_point2_fan.dev_attr.attr,
1260         &sensor_dev_attr_pwm3_auto_point3_temp.dev_attr.attr,
1261         &sensor_dev_attr_pwm3_auto_point3_fan.dev_attr.attr,
1262 
1263         &sensor_dev_attr_in0_alarm.dev_attr.attr,
1264         &sensor_dev_attr_in1_alarm.dev_attr.attr,
1265         &sensor_dev_attr_in2_alarm.dev_attr.attr,
1266         &sensor_dev_attr_in3_alarm.dev_attr.attr,
1267         &sensor_dev_attr_in5_alarm.dev_attr.attr,
1268         &sensor_dev_attr_in6_alarm.dev_attr.attr,
1269         &sensor_dev_attr_in7_alarm.dev_attr.attr,
1270         &dev_attr_alarms_in.attr,
1271         &sensor_dev_attr_temp1_alarm.dev_attr.attr,
1272         &sensor_dev_attr_temp2_alarm.dev_attr.attr,
1273         &sensor_dev_attr_temp3_alarm.dev_attr.attr,
1274         &dev_attr_alarms_temp.attr,
1275         &dev_attr_alarms_fan.attr,
1276 
1277         &dev_attr_name.attr,
1278         NULL
1279 };
1280 
1281 static const struct attribute_group f71805f_group = {
1282         .attrs = f71805f_attributes,
1283 };
1284 
1285 static struct attribute *f71805f_attributes_optin[4][5] = {
1286         {
1287                 &sensor_dev_attr_in4_input.dev_attr.attr,
1288                 &sensor_dev_attr_in4_max.dev_attr.attr,
1289                 &sensor_dev_attr_in4_min.dev_attr.attr,
1290                 &sensor_dev_attr_in4_alarm.dev_attr.attr,
1291                 NULL
1292         }, {
1293                 &sensor_dev_attr_in8_input.dev_attr.attr,
1294                 &sensor_dev_attr_in8_max.dev_attr.attr,
1295                 &sensor_dev_attr_in8_min.dev_attr.attr,
1296                 &sensor_dev_attr_in8_alarm.dev_attr.attr,
1297                 NULL
1298         }, {
1299                 &sensor_dev_attr_in9_input.dev_attr.attr,
1300                 &sensor_dev_attr_in9_max.dev_attr.attr,
1301                 &sensor_dev_attr_in9_min.dev_attr.attr,
1302                 &sensor_dev_attr_in9_alarm.dev_attr.attr,
1303                 NULL
1304         }, {
1305                 &sensor_dev_attr_in10_input.dev_attr.attr,
1306                 &sensor_dev_attr_in10_max.dev_attr.attr,
1307                 &sensor_dev_attr_in10_min.dev_attr.attr,
1308                 &sensor_dev_attr_in10_alarm.dev_attr.attr,
1309                 NULL
1310         }
1311 };
1312 
1313 static const struct attribute_group f71805f_group_optin[4] = {
1314         { .attrs = f71805f_attributes_optin[0] },
1315         { .attrs = f71805f_attributes_optin[1] },
1316         { .attrs = f71805f_attributes_optin[2] },
1317         { .attrs = f71805f_attributes_optin[3] },
1318 };
1319 
1320 /*
1321  * We don't include pwm_freq files in the arrays above, because they must be
1322  * created conditionally (only if pwm_mode is 1 == PWM)
1323  */
1324 static struct attribute *f71805f_attributes_pwm_freq[] = {
1325         &sensor_dev_attr_pwm1_freq.dev_attr.attr,
1326         &sensor_dev_attr_pwm2_freq.dev_attr.attr,
1327         &sensor_dev_attr_pwm3_freq.dev_attr.attr,
1328         NULL
1329 };
1330 
1331 static const struct attribute_group f71805f_group_pwm_freq = {
1332         .attrs = f71805f_attributes_pwm_freq,
1333 };
1334 
1335 /* We also need an indexed access to pwmN files to toggle writability */
1336 static struct attribute *f71805f_attr_pwm[] = {
1337         &sensor_dev_attr_pwm1.dev_attr.attr,
1338         &sensor_dev_attr_pwm2.dev_attr.attr,
1339         &sensor_dev_attr_pwm3.dev_attr.attr,
1340 };
1341 
1342 /*
1343  * Device registration and initialization
1344  */
1345 
1346 static void f71805f_init_device(struct f71805f_data *data)
1347 {
1348         u8 reg;
1349         int i;
1350 
1351         reg = f71805f_read8(data, F71805F_REG_START);
1352         if ((reg & 0x41) != 0x01) {
1353                 pr_debug("Starting monitoring operations\n");
1354                 f71805f_write8(data, F71805F_REG_START, (reg | 0x01) & ~0x40);
1355         }
1356 
1357         /*
1358          * Fan monitoring can be disabled. If it is, we won't be polling
1359          * the register values, and won't create the related sysfs files.
1360          */
1361         for (i = 0; i < 3; i++) {
1362                 data->fan_ctrl[i] = f71805f_read8(data,
1363                                                   F71805F_REG_FAN_CTRL(i));
1364                 /*
1365                  * Clear latch full bit, else "speed mode" fan speed control
1366                  * doesn't work
1367                  */
1368                 if (data->fan_ctrl[i] & FAN_CTRL_LATCH_FULL) {
1369                         data->fan_ctrl[i] &= ~FAN_CTRL_LATCH_FULL;
1370                         f71805f_write8(data, F71805F_REG_FAN_CTRL(i),
1371                                        data->fan_ctrl[i]);
1372                 }
1373         }
1374 }
1375 
1376 static int f71805f_probe(struct platform_device *pdev)
1377 {
1378         struct f71805f_sio_data *sio_data = dev_get_platdata(&pdev->dev);
1379         struct f71805f_data *data;
1380         struct resource *res;
1381         int i, err;
1382 
1383         static const char * const names[] = {
1384                 "f71805f",
1385                 "f71872f",
1386         };
1387 
1388         data = devm_kzalloc(&pdev->dev, sizeof(struct f71805f_data),
1389                             GFP_KERNEL);
1390         if (!data)
1391                 return -ENOMEM;
1392 
1393         res = platform_get_resource(pdev, IORESOURCE_IO, 0);
1394         if (!devm_request_region(&pdev->dev, res->start + ADDR_REG_OFFSET, 2,
1395                                  DRVNAME)) {
1396                 dev_err(&pdev->dev, "Failed to request region 0x%lx-0x%lx\n",
1397                         (unsigned long)(res->start + ADDR_REG_OFFSET),
1398                         (unsigned long)(res->start + ADDR_REG_OFFSET + 1));
1399                 return -EBUSY;
1400         }
1401         data->addr = res->start;
1402         data->name = names[sio_data->kind];
1403         mutex_init(&data->update_lock);
1404 
1405         platform_set_drvdata(pdev, data);
1406 
1407         /* Some voltage inputs depend on chip model and configuration */
1408         switch (sio_data->kind) {
1409         case f71805f:
1410                 data->has_in = 0x1ff;
1411                 break;
1412         case f71872f:
1413                 data->has_in = 0x6ef;
1414                 if (sio_data->fnsel1 & 0x01)
1415                         data->has_in |= (1 << 4); /* in4 */
1416                 if (sio_data->fnsel1 & 0x02)
1417                         data->has_in |= (1 << 8); /* in8 */
1418                 break;
1419         }
1420 
1421         /* Initialize the F71805F chip */
1422         f71805f_init_device(data);
1423 
1424         /* Register sysfs interface files */
1425         err = sysfs_create_group(&pdev->dev.kobj, &f71805f_group);
1426         if (err)
1427                 return err;
1428         if (data->has_in & (1 << 4)) { /* in4 */
1429                 err = sysfs_create_group(&pdev->dev.kobj,
1430                                          &f71805f_group_optin[0]);
1431                 if (err)
1432                         goto exit_remove_files;
1433         }
1434         if (data->has_in & (1 << 8)) { /* in8 */
1435                 err = sysfs_create_group(&pdev->dev.kobj,
1436                                          &f71805f_group_optin[1]);
1437                 if (err)
1438                         goto exit_remove_files;
1439         }
1440         if (data->has_in & (1 << 9)) { /* in9 (F71872F/FG only) */
1441                 err = sysfs_create_group(&pdev->dev.kobj,
1442                                          &f71805f_group_optin[2]);
1443                 if (err)
1444                         goto exit_remove_files;
1445         }
1446         if (data->has_in & (1 << 10)) { /* in9 (F71872F/FG only) */
1447                 err = sysfs_create_group(&pdev->dev.kobj,
1448                                          &f71805f_group_optin[3]);
1449                 if (err)
1450                         goto exit_remove_files;
1451         }
1452         for (i = 0; i < 3; i++) {
1453                 /* If control mode is PWM, create pwm_freq file */
1454                 if (!(data->fan_ctrl[i] & FAN_CTRL_DC_MODE)) {
1455                         err = sysfs_create_file(&pdev->dev.kobj,
1456                                                 f71805f_attributes_pwm_freq[i]);
1457                         if (err)
1458                                 goto exit_remove_files;
1459                 }
1460                 /* If PWM is in manual mode, add write permission */
1461                 if (data->fan_ctrl[i] & FAN_CTRL_MODE_MANUAL) {
1462                         err = sysfs_chmod_file(&pdev->dev.kobj,
1463                                                f71805f_attr_pwm[i],
1464                                                S_IRUGO | S_IWUSR);
1465                         if (err) {
1466                                 dev_err(&pdev->dev, "chmod +w pwm%d failed\n",
1467                                         i + 1);
1468                                 goto exit_remove_files;
1469                         }
1470                 }
1471         }
1472 
1473         data->hwmon_dev = hwmon_device_register(&pdev->dev);
1474         if (IS_ERR(data->hwmon_dev)) {
1475                 err = PTR_ERR(data->hwmon_dev);
1476                 dev_err(&pdev->dev, "Class registration failed (%d)\n", err);
1477                 goto exit_remove_files;
1478         }
1479 
1480         return 0;
1481 
1482 exit_remove_files:
1483         sysfs_remove_group(&pdev->dev.kobj, &f71805f_group);
1484         for (i = 0; i < 4; i++)
1485                 sysfs_remove_group(&pdev->dev.kobj, &f71805f_group_optin[i]);
1486         sysfs_remove_group(&pdev->dev.kobj, &f71805f_group_pwm_freq);
1487         return err;
1488 }
1489 
1490 static int f71805f_remove(struct platform_device *pdev)
1491 {
1492         struct f71805f_data *data = platform_get_drvdata(pdev);
1493         int i;
1494 
1495         hwmon_device_unregister(data->hwmon_dev);
1496         sysfs_remove_group(&pdev->dev.kobj, &f71805f_group);
1497         for (i = 0; i < 4; i++)
1498                 sysfs_remove_group(&pdev->dev.kobj, &f71805f_group_optin[i]);
1499         sysfs_remove_group(&pdev->dev.kobj, &f71805f_group_pwm_freq);
1500 
1501         return 0;
1502 }
1503 
1504 static struct platform_driver f71805f_driver = {
1505         .driver = {
1506                 .owner  = THIS_MODULE,
1507                 .name   = DRVNAME,
1508         },
1509         .probe          = f71805f_probe,
1510         .remove         = f71805f_remove,
1511 };
1512 
1513 static int __init f71805f_device_add(unsigned short address,
1514                                      const struct f71805f_sio_data *sio_data)
1515 {
1516         struct resource res = {
1517                 .start  = address,
1518                 .end    = address + REGION_LENGTH - 1,
1519                 .flags  = IORESOURCE_IO,
1520         };
1521         int err;
1522 
1523         pdev = platform_device_alloc(DRVNAME, address);
1524         if (!pdev) {
1525                 err = -ENOMEM;
1526                 pr_err("Device allocation failed\n");
1527                 goto exit;
1528         }
1529 
1530         res.name = pdev->name;
1531         err = acpi_check_resource_conflict(&res);
1532         if (err)
1533                 goto exit_device_put;
1534 
1535         err = platform_device_add_resources(pdev, &res, 1);
1536         if (err) {
1537                 pr_err("Device resource addition failed (%d)\n", err);
1538                 goto exit_device_put;
1539         }
1540 
1541         err = platform_device_add_data(pdev, sio_data,
1542                                        sizeof(struct f71805f_sio_data));
1543         if (err) {
1544                 pr_err("Platform data allocation failed\n");
1545                 goto exit_device_put;
1546         }
1547 
1548         err = platform_device_add(pdev);
1549         if (err) {
1550                 pr_err("Device addition failed (%d)\n", err);
1551                 goto exit_device_put;
1552         }
1553 
1554         return 0;
1555 
1556 exit_device_put:
1557         platform_device_put(pdev);
1558 exit:
1559         return err;
1560 }
1561 
1562 static int __init f71805f_find(int sioaddr, unsigned short *address,
1563                                struct f71805f_sio_data *sio_data)
1564 {
1565         int err = -ENODEV;
1566         u16 devid;
1567 
1568         static const char * const names[] = {
1569                 "F71805F/FG",
1570                 "F71872F/FG or F71806F/FG",
1571         };
1572 
1573         superio_enter(sioaddr);
1574 
1575         devid = superio_inw(sioaddr, SIO_REG_MANID);
1576         if (devid != SIO_FINTEK_ID)
1577                 goto exit;
1578 
1579         devid = force_id ? force_id : superio_inw(sioaddr, SIO_REG_DEVID);
1580         switch (devid) {
1581         case SIO_F71805F_ID:
1582                 sio_data->kind = f71805f;
1583                 break;
1584         case SIO_F71872F_ID:
1585                 sio_data->kind = f71872f;
1586                 sio_data->fnsel1 = superio_inb(sioaddr, SIO_REG_FNSEL1);
1587                 break;
1588         default:
1589                 pr_info("Unsupported Fintek device, skipping\n");
1590                 goto exit;
1591         }
1592 
1593         superio_select(sioaddr, F71805F_LD_HWM);
1594         if (!(superio_inb(sioaddr, SIO_REG_ENABLE) & 0x01)) {
1595                 pr_warn("Device not activated, skipping\n");
1596                 goto exit;
1597         }
1598 
1599         *address = superio_inw(sioaddr, SIO_REG_ADDR);
1600         if (*address == 0) {
1601                 pr_warn("Base address not set, skipping\n");
1602                 goto exit;
1603         }
1604         *address &= ~(REGION_LENGTH - 1);       /* Ignore 3 LSB */
1605 
1606         err = 0;
1607         pr_info("Found %s chip at %#x, revision %u\n",
1608                 names[sio_data->kind], *address,
1609                 superio_inb(sioaddr, SIO_REG_DEVREV));
1610 
1611 exit:
1612         superio_exit(sioaddr);
1613         return err;
1614 }
1615 
1616 static int __init f71805f_init(void)
1617 {
1618         int err;
1619         unsigned short address;
1620         struct f71805f_sio_data sio_data;
1621 
1622         if (f71805f_find(0x2e, &address, &sio_data)
1623          && f71805f_find(0x4e, &address, &sio_data))
1624                 return -ENODEV;
1625 
1626         err = platform_driver_register(&f71805f_driver);
1627         if (err)
1628                 goto exit;
1629 
1630         /* Sets global pdev as a side effect */
1631         err = f71805f_device_add(address, &sio_data);
1632         if (err)
1633                 goto exit_driver;
1634 
1635         return 0;
1636 
1637 exit_driver:
1638         platform_driver_unregister(&f71805f_driver);
1639 exit:
1640         return err;
1641 }
1642 
1643 static void __exit f71805f_exit(void)
1644 {
1645         platform_device_unregister(pdev);
1646         platform_driver_unregister(&f71805f_driver);
1647 }
1648 
1649 MODULE_AUTHOR("Jean Delvare <jdelvare@suse.de>");
1650 MODULE_LICENSE("GPL");
1651 MODULE_DESCRIPTION("F71805F/F71872F hardware monitoring driver");
1652 
1653 module_init(f71805f_init);
1654 module_exit(f71805f_exit);
1655 

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