1/*
2 * pc87360.c - Part of lm_sensors, Linux kernel modules
3 * for hardware monitoring
4 * Copyright (C) 2004, 2007 Jean Delvare <jdelvare@suse.de>
5 *
6 * Copied from smsc47m1.c:
7 * Copyright (C) 2002 Mark D. Studebaker <mdsxyz123@yahoo.com>
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22 *
23 * Supports the following chips:
24 *
25 * Chip #vin #fan #pwm #temp devid
26 * PC87360 - 2 2 - 0xE1
27 * PC87363 - 2 2 - 0xE8
28 * PC87364 - 3 3 - 0xE4
29 * PC87365 11 3 3 2 0xE5
30 * PC87366 11 3 3 3-4 0xE9
31 *
32 * This driver assumes that no more than one chip is present, and one of
33 * the standard Super-I/O addresses is used (0x2E/0x2F or 0x4E/0x4F).
34 */
35
36#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
37
38#include <linux/module.h>
39#include <linux/init.h>
40#include <linux/slab.h>
41#include <linux/jiffies.h>
42#include <linux/platform_device.h>
43#include <linux/hwmon.h>
44#include <linux/hwmon-sysfs.h>
45#include <linux/hwmon-vid.h>
46#include <linux/err.h>
47#include <linux/mutex.h>
48#include <linux/acpi.h>
49#include <linux/io.h>
50
51static u8 devid;
52static struct platform_device *pdev;
53static unsigned short extra_isa[3];
54static u8 confreg[4];
55
56static int init = 1;
57module_param(init, int, 0);
58MODULE_PARM_DESC(init,
59"Chip initialization level:\n"
60" 0: None\n"
61"*1: Forcibly enable internal voltage and temperature channels, except in9\n"
62" 2: Forcibly enable all voltage and temperature channels, except in9\n"
63" 3: Forcibly enable all voltage and temperature channels, including in9");
64
65static unsigned short force_id;
66module_param(force_id, ushort, 0);
67MODULE_PARM_DESC(force_id, "Override the detected device ID");
68
69/*
70 * Super-I/O registers and operations
71 */
72
73#define DEV 0x07 /* Register: Logical device select */
74#define DEVID 0x20 /* Register: Device ID */
75#define ACT 0x30 /* Register: Device activation */
76#define BASE 0x60 /* Register: Base address */
77
78#define FSCM 0x09 /* Logical device: fans */
79#define VLM 0x0d /* Logical device: voltages */
80#define TMS 0x0e /* Logical device: temperatures */
81#define LDNI_MAX 3
82static const u8 logdev[LDNI_MAX] = { FSCM, VLM, TMS };
83
84#define LD_FAN 0
85#define LD_IN 1
86#define LD_TEMP 2
87
88static inline void superio_outb(int sioaddr, int reg, int val)
89{
90 outb(reg, sioaddr);
91 outb(val, sioaddr + 1);
92}
93
94static inline int superio_inb(int sioaddr, int reg)
95{
96 outb(reg, sioaddr);
97 return inb(sioaddr + 1);
98}
99
100static inline void superio_exit(int sioaddr)
101{
102 outb(0x02, sioaddr);
103 outb(0x02, sioaddr + 1);
104}
105
106/*
107 * Logical devices
108 */
109
110#define PC87360_EXTENT 0x10
111#define PC87365_REG_BANK 0x09
112#define NO_BANK 0xff
113
114/*
115 * Fan registers and conversions
116 */
117
118/* nr has to be 0 or 1 (PC87360/87363) or 2 (PC87364/87365/87366) */
119#define PC87360_REG_PRESCALE(nr) (0x00 + 2 * (nr))
120#define PC87360_REG_PWM(nr) (0x01 + 2 * (nr))
121#define PC87360_REG_FAN_MIN(nr) (0x06 + 3 * (nr))
122#define PC87360_REG_FAN(nr) (0x07 + 3 * (nr))
123#define PC87360_REG_FAN_STATUS(nr) (0x08 + 3 * (nr))
124
125#define FAN_FROM_REG(val, div) ((val) == 0 ? 0 : \
126 480000 / ((val) * (div)))
127#define FAN_TO_REG(val, div) ((val) <= 100 ? 0 : \
128 480000 / ((val) * (div)))
129#define FAN_DIV_FROM_REG(val) (1 << (((val) >> 5) & 0x03))
130#define FAN_STATUS_FROM_REG(val) ((val) & 0x07)
131
132#define FAN_CONFIG_MONITOR(val, nr) (((val) >> (2 + (nr) * 3)) & 1)
133#define FAN_CONFIG_CONTROL(val, nr) (((val) >> (3 + (nr) * 3)) & 1)
134#define FAN_CONFIG_INVERT(val, nr) (((val) >> (4 + (nr) * 3)) & 1)
135
136#define PWM_FROM_REG(val, inv) ((inv) ? 255 - (val) : (val))
137static inline u8 PWM_TO_REG(int val, int inv)
138{
139 if (inv)
140 val = 255 - val;
141 if (val < 0)
142 return 0;
143 if (val > 255)
144 return 255;
145 return val;
146}
147
148/*
149 * Voltage registers and conversions
150 */
151
152#define PC87365_REG_IN_CONVRATE 0x07
153#define PC87365_REG_IN_CONFIG 0x08
154#define PC87365_REG_IN 0x0B
155#define PC87365_REG_IN_MIN 0x0D
156#define PC87365_REG_IN_MAX 0x0C
157#define PC87365_REG_IN_STATUS 0x0A
158#define PC87365_REG_IN_ALARMS1 0x00
159#define PC87365_REG_IN_ALARMS2 0x01
160#define PC87365_REG_VID 0x06
161
162#define IN_FROM_REG(val, ref) (((val) * (ref) + 128) / 256)
163#define IN_TO_REG(val, ref) ((val) < 0 ? 0 : \
164 (val) * 256 >= (ref) * 255 ? 255 : \
165 ((val) * 256 + (ref) / 2) / (ref))
166
167/*
168 * Temperature registers and conversions
169 */
170
171#define PC87365_REG_TEMP_CONFIG 0x08
172#define PC87365_REG_TEMP 0x0B
173#define PC87365_REG_TEMP_MIN 0x0D
174#define PC87365_REG_TEMP_MAX 0x0C
175#define PC87365_REG_TEMP_CRIT 0x0E
176#define PC87365_REG_TEMP_STATUS 0x0A
177#define PC87365_REG_TEMP_ALARMS 0x00
178
179#define TEMP_FROM_REG(val) ((val) * 1000)
180#define TEMP_TO_REG(val) ((val) < -55000 ? -55 : \
181 (val) > 127000 ? 127 : \
182 (val) < 0 ? ((val) - 500) / 1000 : \
183 ((val) + 500) / 1000)
184
185/*
186 * Device data
187 */
188
189struct pc87360_data {
190 const char *name;
191 struct device *hwmon_dev;
192 struct mutex lock;
193 struct mutex update_lock;
194 char valid; /* !=0 if following fields are valid */
195 unsigned long last_updated; /* In jiffies */
196
197 int address[3];
198
199 u8 fannr, innr, tempnr;
200
201 u8 fan[3]; /* Register value */
202 u8 fan_min[3]; /* Register value */
203 u8 fan_status[3]; /* Register value */
204 u8 pwm[3]; /* Register value */
205 u16 fan_conf; /* Configuration register values, combined */
206
207 u16 in_vref; /* 1 mV/bit */
208 u8 in[14]; /* Register value */
209 u8 in_min[14]; /* Register value */
210 u8 in_max[14]; /* Register value */
211 u8 in_crit[3]; /* Register value */
212 u8 in_status[14]; /* Register value */
213 u16 in_alarms; /* Register values, combined, masked */
214 u8 vid_conf; /* Configuration register value */
215 u8 vrm;
216 u8 vid; /* Register value */
217
218 s8 temp[3]; /* Register value */
219 s8 temp_min[3]; /* Register value */
220 s8 temp_max[3]; /* Register value */
221 s8 temp_crit[3]; /* Register value */
222 u8 temp_status[3]; /* Register value */
223 u8 temp_alarms; /* Register value, masked */
224};
225
226/*
227 * Functions declaration
228 */
229
230static int pc87360_probe(struct platform_device *pdev);
231static int pc87360_remove(struct platform_device *pdev);
232
233static int pc87360_read_value(struct pc87360_data *data, u8 ldi, u8 bank,
234 u8 reg);
235static void pc87360_write_value(struct pc87360_data *data, u8 ldi, u8 bank,
236 u8 reg, u8 value);
237static void pc87360_init_device(struct platform_device *pdev,
238 int use_thermistors);
239static struct pc87360_data *pc87360_update_device(struct device *dev);
240
241/*
242 * Driver data
243 */
244
245static struct platform_driver pc87360_driver = {
246 .driver = {
247 .name = "pc87360",
248 },
249 .probe = pc87360_probe,
250 .remove = pc87360_remove,
251};
252
253/*
254 * Sysfs stuff
255 */
256
257static ssize_t fan_input_show(struct device *dev,
258 struct device_attribute *devattr, char *buf)
259{
260 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
261 struct pc87360_data *data = pc87360_update_device(dev);
262 return sprintf(buf, "%u\n", FAN_FROM_REG(data->fan[attr->index],
263 FAN_DIV_FROM_REG(data->fan_status[attr->index])));
264}
265static ssize_t fan_min_show(struct device *dev,
266 struct device_attribute *devattr, char *buf)
267{
268 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
269 struct pc87360_data *data = pc87360_update_device(dev);
270 return sprintf(buf, "%u\n", FAN_FROM_REG(data->fan_min[attr->index],
271 FAN_DIV_FROM_REG(data->fan_status[attr->index])));
272}
273static ssize_t fan_div_show(struct device *dev,
274 struct device_attribute *devattr, char *buf)
275{
276 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
277 struct pc87360_data *data = pc87360_update_device(dev);
278 return sprintf(buf, "%u\n",
279 FAN_DIV_FROM_REG(data->fan_status[attr->index]));
280}
281static ssize_t fan_status_show(struct device *dev,
282 struct device_attribute *devattr, char *buf)
283{
284 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
285 struct pc87360_data *data = pc87360_update_device(dev);
286 return sprintf(buf, "%u\n",
287 FAN_STATUS_FROM_REG(data->fan_status[attr->index]));
288}
289static ssize_t fan_min_store(struct device *dev,
290 struct device_attribute *devattr,
291 const char *buf, size_t count)
292{
293 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
294 struct pc87360_data *data = dev_get_drvdata(dev);
295 long fan_min;
296 int err;
297
298 err = kstrtol(buf, 10, &fan_min);
299 if (err)
300 return err;
301
302 mutex_lock(&data->update_lock);
303 fan_min = FAN_TO_REG(fan_min,
304 FAN_DIV_FROM_REG(data->fan_status[attr->index]));
305
306 /* If it wouldn't fit, change clock divisor */
307 while (fan_min > 255
308 && (data->fan_status[attr->index] & 0x60) != 0x60) {
309 fan_min >>= 1;
310 data->fan[attr->index] >>= 1;
311 data->fan_status[attr->index] += 0x20;
312 }
313 data->fan_min[attr->index] = fan_min > 255 ? 255 : fan_min;
314 pc87360_write_value(data, LD_FAN, NO_BANK,
315 PC87360_REG_FAN_MIN(attr->index),
316 data->fan_min[attr->index]);
317
318 /* Write new divider, preserve alarm bits */
319 pc87360_write_value(data, LD_FAN, NO_BANK,
320 PC87360_REG_FAN_STATUS(attr->index),
321 data->fan_status[attr->index] & 0xF9);
322 mutex_unlock(&data->update_lock);
323
324 return count;
325}
326
327static struct sensor_device_attribute fan_input[] = {
328 SENSOR_ATTR_RO(fan1_input, fan_input, 0),
329 SENSOR_ATTR_RO(fan2_input, fan_input, 1),
330 SENSOR_ATTR_RO(fan3_input, fan_input, 2),
331};
332static struct sensor_device_attribute fan_status[] = {
333 SENSOR_ATTR_RO(fan1_status, fan_status, 0),
334 SENSOR_ATTR_RO(fan2_status, fan_status, 1),
335 SENSOR_ATTR_RO(fan3_status, fan_status, 2),
336};
337static struct sensor_device_attribute fan_div[] = {
338 SENSOR_ATTR_RO(fan1_div, fan_div, 0),
339 SENSOR_ATTR_RO(fan2_div, fan_div, 1),
340 SENSOR_ATTR_RO(fan3_div, fan_div, 2),
341};
342static struct sensor_device_attribute fan_min[] = {
343 SENSOR_ATTR_RW(fan1_min, fan_min, 0),
344 SENSOR_ATTR_RW(fan2_min, fan_min, 1),
345 SENSOR_ATTR_RW(fan3_min, fan_min, 2),
346};
347
348#define FAN_UNIT_ATTRS(X) \
349{ &fan_input[X].dev_attr.attr, \
350 &fan_status[X].dev_attr.attr, \
351 &fan_div[X].dev_attr.attr, \
352 &fan_min[X].dev_attr.attr, \
353 NULL \
354}
355
356static ssize_t pwm_show(struct device *dev, struct device_attribute *devattr,
357 char *buf)
358{
359 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
360 struct pc87360_data *data = pc87360_update_device(dev);
361 return sprintf(buf, "%u\n",
362 PWM_FROM_REG(data->pwm[attr->index],
363 FAN_CONFIG_INVERT(data->fan_conf,
364 attr->index)));
365}
366static ssize_t pwm_store(struct device *dev, struct device_attribute *devattr,
367 const char *buf, size_t count)
368{
369 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
370 struct pc87360_data *data = dev_get_drvdata(dev);
371 long val;
372 int err;
373
374 err = kstrtol(buf, 10, &val);
375 if (err)
376 return err;
377
378 mutex_lock(&data->update_lock);
379 data->pwm[attr->index] = PWM_TO_REG(val,
380 FAN_CONFIG_INVERT(data->fan_conf, attr->index));
381 pc87360_write_value(data, LD_FAN, NO_BANK, PC87360_REG_PWM(attr->index),
382 data->pwm[attr->index]);
383 mutex_unlock(&data->update_lock);
384 return count;
385}
386
387static struct sensor_device_attribute pwm[] = {
388 SENSOR_ATTR_RW(pwm1, pwm, 0),
389 SENSOR_ATTR_RW(pwm2, pwm, 1),
390 SENSOR_ATTR_RW(pwm3, pwm, 2),
391};
392
393static struct attribute *pc8736x_fan_attr[][5] = {
394 FAN_UNIT_ATTRS(0),
395 FAN_UNIT_ATTRS(1),
396 FAN_UNIT_ATTRS(2)
397};
398
399static const struct attribute_group pc8736x_fan_attr_group[] = {
400 { .attrs = pc8736x_fan_attr[0], },
401 { .attrs = pc8736x_fan_attr[1], },
402 { .attrs = pc8736x_fan_attr[2], },
403};
404
405static ssize_t in_input_show(struct device *dev,
406 struct device_attribute *devattr, char *buf)
407{
408 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
409 struct pc87360_data *data = pc87360_update_device(dev);
410 return sprintf(buf, "%u\n", IN_FROM_REG(data->in[attr->index],
411 data->in_vref));
412}
413static ssize_t in_min_show(struct device *dev,
414 struct device_attribute *devattr, char *buf)
415{
416 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
417 struct pc87360_data *data = pc87360_update_device(dev);
418 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[attr->index],
419 data->in_vref));
420}
421static ssize_t in_max_show(struct device *dev,
422 struct device_attribute *devattr, char *buf)
423{
424 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
425 struct pc87360_data *data = pc87360_update_device(dev);
426 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[attr->index],
427 data->in_vref));
428}
429static ssize_t in_status_show(struct device *dev,
430 struct device_attribute *devattr, char *buf)
431{
432 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
433 struct pc87360_data *data = pc87360_update_device(dev);
434 return sprintf(buf, "%u\n", data->in_status[attr->index]);
435}
436static ssize_t in_min_store(struct device *dev,
437 struct device_attribute *devattr, const char *buf,
438 size_t count)
439{
440 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
441 struct pc87360_data *data = dev_get_drvdata(dev);
442 long val;
443 int err;
444
445 err = kstrtol(buf, 10, &val);
446 if (err)
447 return err;
448
449 mutex_lock(&data->update_lock);
450 data->in_min[attr->index] = IN_TO_REG(val, data->in_vref);
451 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_IN_MIN,
452 data->in_min[attr->index]);
453 mutex_unlock(&data->update_lock);
454 return count;
455}
456static ssize_t in_max_store(struct device *dev,
457 struct device_attribute *devattr, const char *buf,
458 size_t count)
459{
460 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
461 struct pc87360_data *data = dev_get_drvdata(dev);
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_max[attr->index] = IN_TO_REG(val,
471 data->in_vref);
472 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_IN_MAX,
473 data->in_max[attr->index]);
474 mutex_unlock(&data->update_lock);
475 return count;
476}
477
478static struct sensor_device_attribute in_input[] = {
479 SENSOR_ATTR_RO(in0_input, in_input, 0),
480 SENSOR_ATTR_RO(in1_input, in_input, 1),
481 SENSOR_ATTR_RO(in2_input, in_input, 2),
482 SENSOR_ATTR_RO(in3_input, in_input, 3),
483 SENSOR_ATTR_RO(in4_input, in_input, 4),
484 SENSOR_ATTR_RO(in5_input, in_input, 5),
485 SENSOR_ATTR_RO(in6_input, in_input, 6),
486 SENSOR_ATTR_RO(in7_input, in_input, 7),
487 SENSOR_ATTR_RO(in8_input, in_input, 8),
488 SENSOR_ATTR_RO(in9_input, in_input, 9),
489 SENSOR_ATTR_RO(in10_input, in_input, 10),
490};
491static struct sensor_device_attribute in_status[] = {
492 SENSOR_ATTR_RO(in0_status, in_status, 0),
493 SENSOR_ATTR_RO(in1_status, in_status, 1),
494 SENSOR_ATTR_RO(in2_status, in_status, 2),
495 SENSOR_ATTR_RO(in3_status, in_status, 3),
496 SENSOR_ATTR_RO(in4_status, in_status, 4),
497 SENSOR_ATTR_RO(in5_status, in_status, 5),
498 SENSOR_ATTR_RO(in6_status, in_status, 6),
499 SENSOR_ATTR_RO(in7_status, in_status, 7),
500 SENSOR_ATTR_RO(in8_status, in_status, 8),
501 SENSOR_ATTR_RO(in9_status, in_status, 9),
502 SENSOR_ATTR_RO(in10_status, in_status, 10),
503};
504static struct sensor_device_attribute in_min[] = {
505 SENSOR_ATTR_RW(in0_min, in_min, 0),
506 SENSOR_ATTR_RW(in1_min, in_min, 1),
507 SENSOR_ATTR_RW(in2_min, in_min, 2),
508 SENSOR_ATTR_RW(in3_min, in_min, 3),
509 SENSOR_ATTR_RW(in4_min, in_min, 4),
510 SENSOR_ATTR_RW(in5_min, in_min, 5),
511 SENSOR_ATTR_RW(in6_min, in_min, 6),
512 SENSOR_ATTR_RW(in7_min, in_min, 7),
513 SENSOR_ATTR_RW(in8_min, in_min, 8),
514 SENSOR_ATTR_RW(in9_min, in_min, 9),
515 SENSOR_ATTR_RW(in10_min, in_min, 10),
516};
517static struct sensor_device_attribute in_max[] = {
518 SENSOR_ATTR_RW(in0_max, in_max, 0),
519 SENSOR_ATTR_RW(in1_max, in_max, 1),
520 SENSOR_ATTR_RW(in2_max, in_max, 2),
521 SENSOR_ATTR_RW(in3_max, in_max, 3),
522 SENSOR_ATTR_RW(in4_max, in_max, 4),
523 SENSOR_ATTR_RW(in5_max, in_max, 5),
524 SENSOR_ATTR_RW(in6_max, in_max, 6),
525 SENSOR_ATTR_RW(in7_max, in_max, 7),
526 SENSOR_ATTR_RW(in8_max, in_max, 8),
527 SENSOR_ATTR_RW(in9_max, in_max, 9),
528 SENSOR_ATTR_RW(in10_max, in_max, 10),
529};
530
531/* (temp & vin) channel status register alarm bits (pdf sec.11.5.12) */
532#define CHAN_ALM_MIN 0x02 /* min limit crossed */
533#define CHAN_ALM_MAX 0x04 /* max limit exceeded */
534#define TEMP_ALM_CRIT 0x08 /* temp crit exceeded (temp only) */
535
536/*
537 * show_in_min/max_alarm() reads data from the per-channel status
538 * register (sec 11.5.12), not the vin event status registers (sec
539 * 11.5.2) that (legacy) show_in_alarm() resds (via data->in_alarms)
540 */
541
542static ssize_t in_min_alarm_show(struct device *dev,
543 struct device_attribute *devattr, char *buf)
544{
545 struct pc87360_data *data = pc87360_update_device(dev);
546 unsigned nr = to_sensor_dev_attr(devattr)->index;
547
548 return sprintf(buf, "%u\n", !!(data->in_status[nr] & CHAN_ALM_MIN));
549}
550static ssize_t in_max_alarm_show(struct device *dev,
551 struct device_attribute *devattr, char *buf)
552{
553 struct pc87360_data *data = pc87360_update_device(dev);
554 unsigned nr = to_sensor_dev_attr(devattr)->index;
555
556 return sprintf(buf, "%u\n", !!(data->in_status[nr] & CHAN_ALM_MAX));
557}
558
559static struct sensor_device_attribute in_min_alarm[] = {
560 SENSOR_ATTR_RO(in0_min_alarm, in_min_alarm, 0),
561 SENSOR_ATTR_RO(in1_min_alarm, in_min_alarm, 1),
562 SENSOR_ATTR_RO(in2_min_alarm, in_min_alarm, 2),
563 SENSOR_ATTR_RO(in3_min_alarm, in_min_alarm, 3),
564 SENSOR_ATTR_RO(in4_min_alarm, in_min_alarm, 4),
565 SENSOR_ATTR_RO(in5_min_alarm, in_min_alarm, 5),
566 SENSOR_ATTR_RO(in6_min_alarm, in_min_alarm, 6),
567 SENSOR_ATTR_RO(in7_min_alarm, in_min_alarm, 7),
568 SENSOR_ATTR_RO(in8_min_alarm, in_min_alarm, 8),
569 SENSOR_ATTR_RO(in9_min_alarm, in_min_alarm, 9),
570 SENSOR_ATTR_RO(in10_min_alarm, in_min_alarm, 10),
571};
572static struct sensor_device_attribute in_max_alarm[] = {
573 SENSOR_ATTR_RO(in0_max_alarm, in_max_alarm, 0),
574 SENSOR_ATTR_RO(in1_max_alarm, in_max_alarm, 1),
575 SENSOR_ATTR_RO(in2_max_alarm, in_max_alarm, 2),
576 SENSOR_ATTR_RO(in3_max_alarm, in_max_alarm, 3),
577 SENSOR_ATTR_RO(in4_max_alarm, in_max_alarm, 4),
578 SENSOR_ATTR_RO(in5_max_alarm, in_max_alarm, 5),
579 SENSOR_ATTR_RO(in6_max_alarm, in_max_alarm, 6),
580 SENSOR_ATTR_RO(in7_max_alarm, in_max_alarm, 7),
581 SENSOR_ATTR_RO(in8_max_alarm, in_max_alarm, 8),
582 SENSOR_ATTR_RO(in9_max_alarm, in_max_alarm, 9),
583 SENSOR_ATTR_RO(in10_max_alarm, in_max_alarm, 10),
584};
585
586#define VIN_UNIT_ATTRS(X) \
587 &in_input[X].dev_attr.attr, \
588 &in_status[X].dev_attr.attr, \
589 &in_min[X].dev_attr.attr, \
590 &in_max[X].dev_attr.attr, \
591 &in_min_alarm[X].dev_attr.attr, \
592 &in_max_alarm[X].dev_attr.attr
593
594static ssize_t cpu0_vid_show(struct device *dev,
595 struct device_attribute *attr, char *buf)
596{
597 struct pc87360_data *data = pc87360_update_device(dev);
598 return sprintf(buf, "%u\n", vid_from_reg(data->vid, data->vrm));
599}
600static DEVICE_ATTR_RO(cpu0_vid);
601
602static ssize_t vrm_show(struct device *dev, struct device_attribute *attr,
603 char *buf)
604{
605 struct pc87360_data *data = dev_get_drvdata(dev);
606 return sprintf(buf, "%u\n", data->vrm);
607}
608static ssize_t vrm_store(struct device *dev, struct device_attribute *attr,
609 const char *buf, size_t count)
610{
611 struct pc87360_data *data = dev_get_drvdata(dev);
612 unsigned long val;
613 int err;
614
615 err = kstrtoul(buf, 10, &val);
616 if (err)
617 return err;
618
619 if (val > 255)
620 return -EINVAL;
621
622 data->vrm = val;
623 return count;
624}
625static DEVICE_ATTR_RW(vrm);
626
627static ssize_t alarms_in_show(struct device *dev,
628 struct device_attribute *attr, char *buf)
629{
630 struct pc87360_data *data = pc87360_update_device(dev);
631 return sprintf(buf, "%u\n", data->in_alarms);
632}
633static DEVICE_ATTR_RO(alarms_in);
634
635static struct attribute *pc8736x_vin_attr_array[] = {
636 VIN_UNIT_ATTRS(0),
637 VIN_UNIT_ATTRS(1),
638 VIN_UNIT_ATTRS(2),
639 VIN_UNIT_ATTRS(3),
640 VIN_UNIT_ATTRS(4),
641 VIN_UNIT_ATTRS(5),
642 VIN_UNIT_ATTRS(6),
643 VIN_UNIT_ATTRS(7),
644 VIN_UNIT_ATTRS(8),
645 VIN_UNIT_ATTRS(9),
646 VIN_UNIT_ATTRS(10),
647 &dev_attr_cpu0_vid.attr,
648 &dev_attr_vrm.attr,
649 &dev_attr_alarms_in.attr,
650 NULL
651};
652static const struct attribute_group pc8736x_vin_group = {
653 .attrs = pc8736x_vin_attr_array,
654};
655
656static ssize_t therm_input_show(struct device *dev,
657 struct device_attribute *devattr, char *buf)
658{
659 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
660 struct pc87360_data *data = pc87360_update_device(dev);
661 return sprintf(buf, "%u\n", IN_FROM_REG(data->in[attr->index],
662 data->in_vref));
663}
664static ssize_t therm_min_show(struct device *dev,
665 struct device_attribute *devattr, char *buf)
666{
667 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
668 struct pc87360_data *data = pc87360_update_device(dev);
669 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_min[attr->index],
670 data->in_vref));
671}
672static ssize_t therm_max_show(struct device *dev,
673 struct device_attribute *devattr, char *buf)
674{
675 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
676 struct pc87360_data *data = pc87360_update_device(dev);
677 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_max[attr->index],
678 data->in_vref));
679}
680static ssize_t therm_crit_show(struct device *dev,
681 struct device_attribute *devattr, char *buf)
682{
683 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
684 struct pc87360_data *data = pc87360_update_device(dev);
685 return sprintf(buf, "%u\n", IN_FROM_REG(data->in_crit[attr->index-11],
686 data->in_vref));
687}
688static ssize_t therm_status_show(struct device *dev,
689 struct device_attribute *devattr, char *buf)
690{
691 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
692 struct pc87360_data *data = pc87360_update_device(dev);
693 return sprintf(buf, "%u\n", data->in_status[attr->index]);
694}
695
696static ssize_t therm_min_store(struct device *dev,
697 struct device_attribute *devattr,
698 const char *buf, size_t count)
699{
700 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
701 struct pc87360_data *data = dev_get_drvdata(dev);
702 long val;
703 int err;
704
705 err = kstrtol(buf, 10, &val);
706 if (err)
707 return err;
708
709 mutex_lock(&data->update_lock);
710 data->in_min[attr->index] = IN_TO_REG(val, data->in_vref);
711 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_MIN,
712 data->in_min[attr->index]);
713 mutex_unlock(&data->update_lock);
714 return count;
715}
716
717static ssize_t therm_max_store(struct device *dev,
718 struct device_attribute *devattr,
719 const char *buf, size_t count)
720{
721 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
722 struct pc87360_data *data = dev_get_drvdata(dev);
723 long val;
724 int err;
725
726 err = kstrtol(buf, 10, &val);
727 if (err)
728 return err;
729
730 mutex_lock(&data->update_lock);
731 data->in_max[attr->index] = IN_TO_REG(val, data->in_vref);
732 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_MAX,
733 data->in_max[attr->index]);
734 mutex_unlock(&data->update_lock);
735 return count;
736}
737static ssize_t therm_crit_store(struct device *dev,
738 struct device_attribute *devattr,
739 const char *buf, size_t count)
740{
741 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
742 struct pc87360_data *data = dev_get_drvdata(dev);
743 long val;
744 int err;
745
746 err = kstrtol(buf, 10, &val);
747 if (err)
748 return err;
749
750 mutex_lock(&data->update_lock);
751 data->in_crit[attr->index-11] = IN_TO_REG(val, data->in_vref);
752 pc87360_write_value(data, LD_IN, attr->index, PC87365_REG_TEMP_CRIT,
753 data->in_crit[attr->index-11]);
754 mutex_unlock(&data->update_lock);
755 return count;
756}
757
758/*
759 * the +11 term below reflects the fact that VLM units 11,12,13 are
760 * used in the chip to measure voltage across the thermistors
761 */
762static struct sensor_device_attribute therm_input[] = {
763 SENSOR_ATTR_RO(temp4_input, therm_input, 0 + 11),
764 SENSOR_ATTR_RO(temp5_input, therm_input, 1 + 11),
765 SENSOR_ATTR_RO(temp6_input, therm_input, 2 + 11),
766};
767static struct sensor_device_attribute therm_status[] = {
768 SENSOR_ATTR_RO(temp4_status, therm_status, 0 + 11),
769 SENSOR_ATTR_RO(temp5_status, therm_status, 1 + 11),
770 SENSOR_ATTR_RO(temp6_status, therm_status, 2 + 11),
771};
772static struct sensor_device_attribute therm_min[] = {
773 SENSOR_ATTR_RW(temp4_min, therm_min, 0 + 11),
774 SENSOR_ATTR_RW(temp5_min, therm_min, 1 + 11),
775 SENSOR_ATTR_RW(temp6_min, therm_min, 2 + 11),
776};
777static struct sensor_device_attribute therm_max[] = {
778 SENSOR_ATTR_RW(temp4_max, therm_max, 0 + 11),
779 SENSOR_ATTR_RW(temp5_max, therm_max, 1 + 11),
780 SENSOR_ATTR_RW(temp6_max, therm_max, 2 + 11),
781};
782static struct sensor_device_attribute therm_crit[] = {
783 SENSOR_ATTR_RW(temp4_crit, therm_crit, 0 + 11),
784 SENSOR_ATTR_RW(temp5_crit, therm_crit, 1 + 11),
785 SENSOR_ATTR_RW(temp6_crit, therm_crit, 2 + 11),
786};
787
788/*
789 * show_therm_min/max_alarm() reads data from the per-channel voltage
790 * status register (sec 11.5.12)
791 */
792
793static ssize_t therm_min_alarm_show(struct device *dev,
794 struct device_attribute *devattr,
795 char *buf)
796{
797 struct pc87360_data *data = pc87360_update_device(dev);
798 unsigned nr = to_sensor_dev_attr(devattr)->index;
799
800 return sprintf(buf, "%u\n", !!(data->in_status[nr] & CHAN_ALM_MIN));
801}
802static ssize_t therm_max_alarm_show(struct device *dev,
803 struct device_attribute *devattr,
804 char *buf)
805{
806 struct pc87360_data *data = pc87360_update_device(dev);
807 unsigned nr = to_sensor_dev_attr(devattr)->index;
808
809 return sprintf(buf, "%u\n", !!(data->in_status[nr] & CHAN_ALM_MAX));
810}
811static ssize_t therm_crit_alarm_show(struct device *dev,
812 struct device_attribute *devattr,
813 char *buf)
814{
815 struct pc87360_data *data = pc87360_update_device(dev);
816 unsigned nr = to_sensor_dev_attr(devattr)->index;
817
818 return sprintf(buf, "%u\n", !!(data->in_status[nr] & TEMP_ALM_CRIT));
819}
820
821static struct sensor_device_attribute therm_min_alarm[] = {
822 SENSOR_ATTR_RO(temp4_min_alarm, therm_min_alarm, 0 + 11),
823 SENSOR_ATTR_RO(temp5_min_alarm, therm_min_alarm, 1 + 11),
824 SENSOR_ATTR_RO(temp6_min_alarm, therm_min_alarm, 2 + 11),
825};
826static struct sensor_device_attribute therm_max_alarm[] = {
827 SENSOR_ATTR_RO(temp4_max_alarm, therm_max_alarm, 0 + 11),
828 SENSOR_ATTR_RO(temp5_max_alarm, therm_max_alarm, 1 + 11),
829 SENSOR_ATTR_RO(temp6_max_alarm, therm_max_alarm, 2 + 11),
830};
831static struct sensor_device_attribute therm_crit_alarm[] = {
832 SENSOR_ATTR_RO(temp4_crit_alarm, therm_crit_alarm, 0 + 11),
833 SENSOR_ATTR_RO(temp5_crit_alarm, therm_crit_alarm, 1 + 11),
834 SENSOR_ATTR_RO(temp6_crit_alarm, therm_crit_alarm, 2 + 11),
835};
836
837#define THERM_UNIT_ATTRS(X) \
838 &therm_input[X].dev_attr.attr, \
839 &therm_status[X].dev_attr.attr, \
840 &therm_min[X].dev_attr.attr, \
841 &therm_max[X].dev_attr.attr, \
842 &therm_crit[X].dev_attr.attr, \
843 &therm_min_alarm[X].dev_attr.attr, \
844 &therm_max_alarm[X].dev_attr.attr, \
845 &therm_crit_alarm[X].dev_attr.attr
846
847static struct attribute *pc8736x_therm_attr_array[] = {
848 THERM_UNIT_ATTRS(0),
849 THERM_UNIT_ATTRS(1),
850 THERM_UNIT_ATTRS(2),
851 NULL
852};
853static const struct attribute_group pc8736x_therm_group = {
854 .attrs = pc8736x_therm_attr_array,
855};
856
857static ssize_t temp_input_show(struct device *dev,
858 struct device_attribute *devattr, char *buf)
859{
860 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
861 struct pc87360_data *data = pc87360_update_device(dev);
862 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[attr->index]));
863}
864
865static ssize_t temp_min_show(struct device *dev,
866 struct device_attribute *devattr, char *buf)
867{
868 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
869 struct pc87360_data *data = pc87360_update_device(dev);
870 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_min[attr->index]));
871}
872
873static ssize_t temp_max_show(struct device *dev,
874 struct device_attribute *devattr, char *buf)
875{
876 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
877 struct pc87360_data *data = pc87360_update_device(dev);
878 return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp_max[attr->index]));
879}
880
881static ssize_t temp_crit_show(struct device *dev,
882 struct device_attribute *devattr, char *buf)
883{
884 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
885 struct pc87360_data *data = pc87360_update_device(dev);
886 return sprintf(buf, "%d\n",
887 TEMP_FROM_REG(data->temp_crit[attr->index]));
888}
889
890static ssize_t temp_status_show(struct device *dev,
891 struct device_attribute *devattr, char *buf)
892{
893 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
894 struct pc87360_data *data = pc87360_update_device(dev);
895 return sprintf(buf, "%d\n", data->temp_status[attr->index]);
896}
897
898static ssize_t temp_min_store(struct device *dev,
899 struct device_attribute *devattr,
900 const char *buf, size_t count)
901{
902 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
903 struct pc87360_data *data = dev_get_drvdata(dev);
904 long val;
905 int err;
906
907 err = kstrtol(buf, 10, &val);
908 if (err)
909 return err;
910
911 mutex_lock(&data->update_lock);
912 data->temp_min[attr->index] = TEMP_TO_REG(val);
913 pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_MIN,
914 data->temp_min[attr->index]);
915 mutex_unlock(&data->update_lock);
916 return count;
917}
918
919static ssize_t temp_max_store(struct device *dev,
920 struct device_attribute *devattr,
921 const char *buf, size_t count)
922{
923 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
924 struct pc87360_data *data = dev_get_drvdata(dev);
925 long val;
926 int err;
927
928 err = kstrtol(buf, 10, &val);
929 if (err)
930 return err;
931
932 mutex_lock(&data->update_lock);
933 data->temp_max[attr->index] = TEMP_TO_REG(val);
934 pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_MAX,
935 data->temp_max[attr->index]);
936 mutex_unlock(&data->update_lock);
937 return count;
938}
939
940static ssize_t temp_crit_store(struct device *dev,
941 struct device_attribute *devattr,
942 const char *buf, size_t count)
943{
944 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
945 struct pc87360_data *data = dev_get_drvdata(dev);
946 long val;
947 int err;
948
949 err = kstrtol(buf, 10, &val);
950 if (err)
951 return err;
952
953 mutex_lock(&data->update_lock);
954 data->temp_crit[attr->index] = TEMP_TO_REG(val);
955 pc87360_write_value(data, LD_TEMP, attr->index, PC87365_REG_TEMP_CRIT,
956 data->temp_crit[attr->index]);
957 mutex_unlock(&data->update_lock);
958 return count;
959}
960
961static struct sensor_device_attribute temp_input[] = {
962 SENSOR_ATTR_RO(temp1_input, temp_input, 0),
963 SENSOR_ATTR_RO(temp2_input, temp_input, 1),
964 SENSOR_ATTR_RO(temp3_input, temp_input, 2),
965};
966static struct sensor_device_attribute temp_status[] = {
967 SENSOR_ATTR_RO(temp1_status, temp_status, 0),
968 SENSOR_ATTR_RO(temp2_status, temp_status, 1),
969 SENSOR_ATTR_RO(temp3_status, temp_status, 2),
970};
971static struct sensor_device_attribute temp_min[] = {
972 SENSOR_ATTR_RW(temp1_min, temp_min, 0),
973 SENSOR_ATTR_RW(temp2_min, temp_min, 1),
974 SENSOR_ATTR_RW(temp3_min, temp_min, 2),
975};
976static struct sensor_device_attribute temp_max[] = {
977 SENSOR_ATTR_RW(temp1_max, temp_max, 0),
978 SENSOR_ATTR_RW(temp2_max, temp_max, 1),
979 SENSOR_ATTR_RW(temp3_max, temp_max, 2),
980};
981static struct sensor_device_attribute temp_crit[] = {
982 SENSOR_ATTR_RW(temp1_crit, temp_crit, 0),
983 SENSOR_ATTR_RW(temp2_crit, temp_crit, 1),
984 SENSOR_ATTR_RW(temp3_crit, temp_crit, 2),
985};
986
987static ssize_t alarms_temp_show(struct device *dev,
988 struct device_attribute *attr, char *buf)
989{
990 struct pc87360_data *data = pc87360_update_device(dev);
991 return sprintf(buf, "%u\n", data->temp_alarms);
992}
993
994static DEVICE_ATTR_RO(alarms_temp);
995
996/*
997 * show_temp_min/max_alarm() reads data from the per-channel status
998 * register (sec 12.3.7), not the temp event status registers (sec
999 * 12.3.2) that show_temp_alarm() reads (via data->temp_alarms)
1000 */
1001
1002static ssize_t temp_min_alarm_show(struct device *dev,
1003 struct device_attribute *devattr,
1004 char *buf)
1005{
1006 struct pc87360_data *data = pc87360_update_device(dev);
1007 unsigned nr = to_sensor_dev_attr(devattr)->index;
1008
1009 return sprintf(buf, "%u\n", !!(data->temp_status[nr] & CHAN_ALM_MIN));
1010}
1011
1012static ssize_t temp_max_alarm_show(struct device *dev,
1013 struct device_attribute *devattr,
1014 char *buf)
1015{
1016 struct pc87360_data *data = pc87360_update_device(dev);
1017 unsigned nr = to_sensor_dev_attr(devattr)->index;
1018
1019 return sprintf(buf, "%u\n", !!(data->temp_status[nr] & CHAN_ALM_MAX));
1020}
1021
1022static ssize_t temp_crit_alarm_show(struct device *dev,
1023 struct device_attribute *devattr,
1024 char *buf)
1025{
1026 struct pc87360_data *data = pc87360_update_device(dev);
1027 unsigned nr = to_sensor_dev_attr(devattr)->index;
1028
1029 return sprintf(buf, "%u\n", !!(data->temp_status[nr] & TEMP_ALM_CRIT));
1030}
1031
1032static struct sensor_device_attribute temp_min_alarm[] = {
1033 SENSOR_ATTR_RO(temp1_min_alarm, temp_min_alarm, 0),
1034 SENSOR_ATTR_RO(temp2_min_alarm, temp_min_alarm, 1),
1035 SENSOR_ATTR_RO(temp3_min_alarm, temp_min_alarm, 2),
1036};
1037
1038static struct sensor_device_attribute temp_max_alarm[] = {
1039 SENSOR_ATTR_RO(temp1_max_alarm, temp_max_alarm, 0),
1040 SENSOR_ATTR_RO(temp2_max_alarm, temp_max_alarm, 1),
1041 SENSOR_ATTR_RO(temp3_max_alarm, temp_max_alarm, 2),
1042};
1043
1044static struct sensor_device_attribute temp_crit_alarm[] = {
1045 SENSOR_ATTR_RO(temp1_crit_alarm, temp_crit_alarm, 0),
1046 SENSOR_ATTR_RO(temp2_crit_alarm, temp_crit_alarm, 1),
1047 SENSOR_ATTR_RO(temp3_crit_alarm, temp_crit_alarm, 2),
1048};
1049
1050#define TEMP_FAULT 0x40 /* open diode */
1051static ssize_t temp_fault_show(struct device *dev,
1052 struct device_attribute *devattr, char *buf)
1053{
1054 struct pc87360_data *data = pc87360_update_device(dev);
1055 unsigned nr = to_sensor_dev_attr(devattr)->index;
1056
1057 return sprintf(buf, "%u\n", !!(data->temp_status[nr] & TEMP_FAULT));
1058}
1059static struct sensor_device_attribute temp_fault[] = {
1060 SENSOR_ATTR_RO(temp1_fault, temp_fault, 0),
1061 SENSOR_ATTR_RO(temp2_fault, temp_fault, 1),
1062 SENSOR_ATTR_RO(temp3_fault, temp_fault, 2),
1063};
1064
1065#define TEMP_UNIT_ATTRS(X) \
1066{ &temp_input[X].dev_attr.attr, \
1067 &temp_status[X].dev_attr.attr, \
1068 &temp_min[X].dev_attr.attr, \
1069 &temp_max[X].dev_attr.attr, \
1070 &temp_crit[X].dev_attr.attr, \
1071 &temp_min_alarm[X].dev_attr.attr, \
1072 &temp_max_alarm[X].dev_attr.attr, \
1073 &temp_crit_alarm[X].dev_attr.attr, \
1074 &temp_fault[X].dev_attr.attr, \
1075 NULL \
1076}
1077
1078static struct attribute *pc8736x_temp_attr[][10] = {
1079 TEMP_UNIT_ATTRS(0),
1080 TEMP_UNIT_ATTRS(1),
1081 TEMP_UNIT_ATTRS(2)
1082};
1083
1084static const struct attribute_group pc8736x_temp_attr_group[] = {
1085 { .attrs = pc8736x_temp_attr[0] },
1086 { .attrs = pc8736x_temp_attr[1] },
1087 { .attrs = pc8736x_temp_attr[2] }
1088};
1089
1090static ssize_t name_show(struct device *dev,
1091 struct device_attribute *devattr, char *buf)
1092{
1093 struct pc87360_data *data = dev_get_drvdata(dev);
1094 return sprintf(buf, "%s\n", data->name);
1095}
1096
1097static DEVICE_ATTR_RO(name);
1098
1099/*
1100 * Device detection, registration and update
1101 */
1102
1103static int __init pc87360_find(int sioaddr, u8 *devid,
1104 unsigned short *addresses)
1105{
1106 u16 val;
1107 int i;
1108 int nrdev; /* logical device count */
1109
1110 /* No superio_enter */
1111
1112 /* Identify device */
1113 val = force_id ? force_id : superio_inb(sioaddr, DEVID);
1114 switch (val) {
1115 case 0xE1: /* PC87360 */
1116 case 0xE8: /* PC87363 */
1117 case 0xE4: /* PC87364 */
1118 nrdev = 1;
1119 break;
1120 case 0xE5: /* PC87365 */
1121 case 0xE9: /* PC87366 */
1122 nrdev = 3;
1123 break;
1124 default:
1125 superio_exit(sioaddr);
1126 return -ENODEV;
1127 }
1128 /* Remember the device id */
1129 *devid = val;
1130
1131 for (i = 0; i < nrdev; i++) {
1132 /* select logical device */
1133 superio_outb(sioaddr, DEV, logdev[i]);
1134
1135 val = superio_inb(sioaddr, ACT);
1136 if (!(val & 0x01)) {
1137 pr_info("Device 0x%02x not activated\n", logdev[i]);
1138 continue;
1139 }
1140
1141 val = (superio_inb(sioaddr, BASE) << 8)
1142 | superio_inb(sioaddr, BASE + 1);
1143 if (!val) {
1144 pr_info("Base address not set for device 0x%02x\n",
1145 logdev[i]);
1146 continue;
1147 }
1148
1149 addresses[i] = val;
1150
1151 if (i == 0) { /* Fans */
1152 confreg[0] = superio_inb(sioaddr, 0xF0);
1153 confreg[1] = superio_inb(sioaddr, 0xF1);
1154
1155 pr_debug("Fan %d: mon=%d ctrl=%d inv=%d\n", 1,
1156 (confreg[0] >> 2) & 1, (confreg[0] >> 3) & 1,
1157 (confreg[0] >> 4) & 1);
1158 pr_debug("Fan %d: mon=%d ctrl=%d inv=%d\n", 2,
1159 (confreg[0] >> 5) & 1, (confreg[0] >> 6) & 1,
1160 (confreg[0] >> 7) & 1);
1161 pr_debug("Fan %d: mon=%d ctrl=%d inv=%d\n", 3,
1162 confreg[1] & 1, (confreg[1] >> 1) & 1,
1163 (confreg[1] >> 2) & 1);
1164 } else if (i == 1) { /* Voltages */
1165 /* Are we using thermistors? */
1166 if (*devid == 0xE9) { /* PC87366 */
1167 /*
1168 * These registers are not logical-device
1169 * specific, just that we won't need them if
1170 * we don't use the VLM device
1171 */
1172 confreg[2] = superio_inb(sioaddr, 0x2B);
1173 confreg[3] = superio_inb(sioaddr, 0x25);
1174
1175 if (confreg[2] & 0x40) {
1176 pr_info("Using thermistors for temperature monitoring\n");
1177 }
1178 if (confreg[3] & 0xE0) {
1179 pr_info("VID inputs routed (mode %u)\n",
1180 confreg[3] >> 5);
1181 }
1182 }
1183 }
1184 }
1185
1186 superio_exit(sioaddr);
1187 return 0;
1188}
1189
1190static void pc87360_remove_files(struct device *dev)
1191{
1192 int i;
1193
1194 device_remove_file(dev, &dev_attr_name);
1195 device_remove_file(dev, &dev_attr_alarms_temp);
1196 for (i = 0; i < ARRAY_SIZE(pc8736x_temp_attr_group); i++)
1197 sysfs_remove_group(&dev->kobj, &pc8736x_temp_attr_group[i]);
1198 for (i = 0; i < ARRAY_SIZE(pc8736x_fan_attr_group); i++) {
1199 sysfs_remove_group(&pdev->dev.kobj, &pc8736x_fan_attr_group[i]);
1200 device_remove_file(dev, &pwm[i].dev_attr);
1201 }
1202 sysfs_remove_group(&dev->kobj, &pc8736x_therm_group);
1203 sysfs_remove_group(&dev->kobj, &pc8736x_vin_group);
1204}
1205
1206static int pc87360_probe(struct platform_device *pdev)
1207{
1208 int i;
1209 struct pc87360_data *data;
1210 int err = 0;
1211 const char *name;
1212 int use_thermistors = 0;
1213 struct device *dev = &pdev->dev;
1214
1215 data = devm_kzalloc(dev, sizeof(struct pc87360_data), GFP_KERNEL);
1216 if (!data)
1217 return -ENOMEM;
1218
1219 switch (devid) {
1220 default:
1221 name = "pc87360";
1222 data->fannr = 2;
1223 break;
1224 case 0xe8:
1225 name = "pc87363";
1226 data->fannr = 2;
1227 break;
1228 case 0xe4:
1229 name = "pc87364";
1230 data->fannr = 3;
1231 break;
1232 case 0xe5:
1233 name = "pc87365";
1234 data->fannr = extra_isa[0] ? 3 : 0;
1235 data->innr = extra_isa[1] ? 11 : 0;
1236 data->tempnr = extra_isa[2] ? 2 : 0;
1237 break;
1238 case 0xe9:
1239 name = "pc87366";
1240 data->fannr = extra_isa[0] ? 3 : 0;
1241 data->innr = extra_isa[1] ? 14 : 0;
1242 data->tempnr = extra_isa[2] ? 3 : 0;
1243 break;
1244 }
1245
1246 data->name = name;
1247 mutex_init(&data->lock);
1248 mutex_init(&data->update_lock);
1249 platform_set_drvdata(pdev, data);
1250
1251 for (i = 0; i < LDNI_MAX; i++) {
1252 data->address[i] = extra_isa[i];
1253 if (data->address[i]
1254 && !devm_request_region(dev, extra_isa[i], PC87360_EXTENT,
1255 pc87360_driver.driver.name)) {
1256 dev_err(dev,
1257 "Region 0x%x-0x%x already in use!\n",
1258 extra_isa[i], extra_isa[i]+PC87360_EXTENT-1);
1259 return -EBUSY;
1260 }
1261 }
1262
1263 /* Retrieve the fans configuration from Super-I/O space */
1264 if (data->fannr)
1265 data->fan_conf = confreg[0] | (confreg[1] << 8);
1266
1267 /*
1268 * Use the correct reference voltage
1269 * Unless both the VLM and the TMS logical devices agree to
1270 * use an external Vref, the internal one is used.
1271 */
1272 if (data->innr) {
1273 i = pc87360_read_value(data, LD_IN, NO_BANK,
1274 PC87365_REG_IN_CONFIG);
1275 if (data->tempnr) {
1276 i &= pc87360_read_value(data, LD_TEMP, NO_BANK,
1277 PC87365_REG_TEMP_CONFIG);
1278 }
1279 data->in_vref = (i&0x02) ? 3025 : 2966;
1280 dev_dbg(dev, "Using %s reference voltage\n",
1281 (i&0x02) ? "external" : "internal");
1282
1283 data->vid_conf = confreg[3];
1284 data->vrm = vid_which_vrm();
1285 }
1286
1287 /* Fan clock dividers may be needed before any data is read */
1288 for (i = 0; i < data->fannr; i++) {
1289 if (FAN_CONFIG_MONITOR(data->fan_conf, i))
1290 data->fan_status[i] = pc87360_read_value(data,
1291 LD_FAN, NO_BANK,
1292 PC87360_REG_FAN_STATUS(i));
1293 }
1294
1295 if (init > 0) {
1296 if (devid == 0xe9 && data->address[1]) /* PC87366 */
1297 use_thermistors = confreg[2] & 0x40;
1298
1299 pc87360_init_device(pdev, use_thermistors);
1300 }
1301
1302 /* Register all-or-nothing sysfs groups */
1303
1304 if (data->innr) {
1305 err = sysfs_create_group(&dev->kobj, &pc8736x_vin_group);
1306 if (err)
1307 goto error;
1308 }
1309
1310 if (data->innr == 14) {
1311 err = sysfs_create_group(&dev->kobj, &pc8736x_therm_group);
1312 if (err)
1313 goto error;
1314 }
1315
1316 /* create device attr-files for varying sysfs groups */
1317
1318 if (data->tempnr) {
1319 for (i = 0; i < data->tempnr; i++) {
1320 err = sysfs_create_group(&dev->kobj,
1321 &pc8736x_temp_attr_group[i]);
1322 if (err)
1323 goto error;
1324 }
1325 err = device_create_file(dev, &dev_attr_alarms_temp);
1326 if (err)
1327 goto error;
1328 }
1329
1330 for (i = 0; i < data->fannr; i++) {
1331 if (FAN_CONFIG_MONITOR(data->fan_conf, i)) {
1332 err = sysfs_create_group(&dev->kobj,
1333 &pc8736x_fan_attr_group[i]);
1334 if (err)
1335 goto error;
1336 }
1337 if (FAN_CONFIG_CONTROL(data->fan_conf, i)) {
1338 err = device_create_file(dev, &pwm[i].dev_attr);
1339 if (err)
1340 goto error;
1341 }
1342 }
1343
1344 err = device_create_file(dev, &dev_attr_name);
1345 if (err)
1346 goto error;
1347
1348 data->hwmon_dev = hwmon_device_register(dev);
1349 if (IS_ERR(data->hwmon_dev)) {
1350 err = PTR_ERR(data->hwmon_dev);
1351 goto error;
1352 }
1353 return 0;
1354
1355error:
1356 pc87360_remove_files(dev);
1357 return err;
1358}
1359
1360static int pc87360_remove(struct platform_device *pdev)
1361{
1362 struct pc87360_data *data = platform_get_drvdata(pdev);
1363
1364 hwmon_device_unregister(data->hwmon_dev);
1365 pc87360_remove_files(&pdev->dev);
1366
1367 return 0;
1368}
1369
1370/*
1371 * ldi is the logical device index
1372 * bank is for voltages and temperatures only
1373 */
1374static int pc87360_read_value(struct pc87360_data *data, u8 ldi, u8 bank,
1375 u8 reg)
1376{
1377 int res;
1378
1379 mutex_lock(&(data->lock));
1380 if (bank != NO_BANK)
1381 outb_p(bank, data->address[ldi] + PC87365_REG_BANK);
1382 res = inb_p(data->address[ldi] + reg);
1383 mutex_unlock(&(data->lock));
1384
1385 return res;
1386}
1387
1388static void pc87360_write_value(struct pc87360_data *data, u8 ldi, u8 bank,
1389 u8 reg, u8 value)
1390{
1391 mutex_lock(&(data->lock));
1392 if (bank != NO_BANK)
1393 outb_p(bank, data->address[ldi] + PC87365_REG_BANK);
1394 outb_p(value, data->address[ldi] + reg);
1395 mutex_unlock(&(data->lock));
1396}
1397
1398/* (temp & vin) channel conversion status register flags (pdf sec.11.5.12) */
1399#define CHAN_CNVRTD 0x80 /* new data ready */
1400#define CHAN_ENA 0x01 /* enabled channel (temp or vin) */
1401#define CHAN_ALM_ENA 0x10 /* propagate to alarms-reg ?? (chk val!) */
1402#define CHAN_READY (CHAN_ENA|CHAN_CNVRTD) /* sample ready mask */
1403
1404#define TEMP_OTS_OE 0x20 /* OTS Output Enable */
1405#define VIN_RW1C_MASK (CHAN_READY|CHAN_ALM_MAX|CHAN_ALM_MIN) /* 0x87 */
1406#define TEMP_RW1C_MASK (VIN_RW1C_MASK|TEMP_ALM_CRIT|TEMP_FAULT) /* 0xCF */
1407
1408static void pc87360_init_device(struct platform_device *pdev,
1409 int use_thermistors)
1410{
1411 struct pc87360_data *data = platform_get_drvdata(pdev);
1412 int i, nr;
1413 const u8 init_in[14] = { 2, 2, 2, 2, 2, 2, 2, 1, 1, 3, 1, 2, 2, 2 };
1414 const u8 init_temp[3] = { 2, 2, 1 };
1415 u8 reg;
1416
1417 if (init >= 2 && data->innr) {
1418 reg = pc87360_read_value(data, LD_IN, NO_BANK,
1419 PC87365_REG_IN_CONVRATE);
1420 dev_info(&pdev->dev,
1421 "VLM conversion set to 1s period, 160us delay\n");
1422 pc87360_write_value(data, LD_IN, NO_BANK,
1423 PC87365_REG_IN_CONVRATE,
1424 (reg & 0xC0) | 0x11);
1425 }
1426
1427 nr = data->innr < 11 ? data->innr : 11;
1428 for (i = 0; i < nr; i++) {
1429 reg = pc87360_read_value(data, LD_IN, i,
1430 PC87365_REG_IN_STATUS);
1431 dev_dbg(&pdev->dev, "bios in%d status:0x%02x\n", i, reg);
1432 if (init >= init_in[i]) {
1433 /* Forcibly enable voltage channel */
1434 if (!(reg & CHAN_ENA)) {
1435 dev_dbg(&pdev->dev, "Forcibly enabling in%d\n",
1436 i);
1437 pc87360_write_value(data, LD_IN, i,
1438 PC87365_REG_IN_STATUS,
1439 (reg & 0x68) | 0x87);
1440 }
1441 }
1442 }
1443
1444 /*
1445 * We can't blindly trust the Super-I/O space configuration bit,
1446 * most BIOS won't set it properly
1447 */
1448 dev_dbg(&pdev->dev, "bios thermistors:%d\n", use_thermistors);
1449 for (i = 11; i < data->innr; i++) {
1450 reg = pc87360_read_value(data, LD_IN, i,
1451 PC87365_REG_TEMP_STATUS);
1452 use_thermistors = use_thermistors || (reg & CHAN_ENA);
1453 /* thermistors are temp[4-6], measured on vin[11-14] */
1454 dev_dbg(&pdev->dev, "bios temp%d_status:0x%02x\n", i-7, reg);
1455 }
1456 dev_dbg(&pdev->dev, "using thermistors:%d\n", use_thermistors);
1457
1458 i = use_thermistors ? 2 : 0;
1459 for (; i < data->tempnr; i++) {
1460 reg = pc87360_read_value(data, LD_TEMP, i,
1461 PC87365_REG_TEMP_STATUS);
1462 dev_dbg(&pdev->dev, "bios temp%d_status:0x%02x\n", i + 1, reg);
1463 if (init >= init_temp[i]) {
1464 /* Forcibly enable temperature channel */
1465 if (!(reg & CHAN_ENA)) {
1466 dev_dbg(&pdev->dev,
1467 "Forcibly enabling temp%d\n", i + 1);
1468 pc87360_write_value(data, LD_TEMP, i,
1469 PC87365_REG_TEMP_STATUS,
1470 0xCF);
1471 }
1472 }
1473 }
1474
1475 if (use_thermistors) {
1476 for (i = 11; i < data->innr; i++) {
1477 if (init >= init_in[i]) {
1478 /*
1479 * The pin may already be used by thermal
1480 * diodes
1481 */
1482 reg = pc87360_read_value(data, LD_TEMP,
1483 (i - 11) / 2, PC87365_REG_TEMP_STATUS);
1484 if (reg & CHAN_ENA) {
1485 dev_dbg(&pdev->dev,
1486 "Skipping temp%d, pin already in use by temp%d\n",
1487 i - 7, (i - 11) / 2);
1488 continue;
1489 }
1490
1491 /* Forcibly enable thermistor channel */
1492 reg = pc87360_read_value(data, LD_IN, i,
1493 PC87365_REG_IN_STATUS);
1494 if (!(reg & CHAN_ENA)) {
1495 dev_dbg(&pdev->dev,
1496 "Forcibly enabling temp%d\n",
1497 i - 7);
1498 pc87360_write_value(data, LD_IN, i,
1499 PC87365_REG_TEMP_STATUS,
1500 (reg & 0x60) | 0x8F);
1501 }
1502 }
1503 }
1504 }
1505
1506 if (data->innr) {
1507 reg = pc87360_read_value(data, LD_IN, NO_BANK,
1508 PC87365_REG_IN_CONFIG);
1509 dev_dbg(&pdev->dev, "bios vin-cfg:0x%02x\n", reg);
1510 if (reg & CHAN_ENA) {
1511 dev_dbg(&pdev->dev,
1512 "Forcibly enabling monitoring (VLM)\n");
1513 pc87360_write_value(data, LD_IN, NO_BANK,
1514 PC87365_REG_IN_CONFIG,
1515 reg & 0xFE);
1516 }
1517 }
1518
1519 if (data->tempnr) {
1520 reg = pc87360_read_value(data, LD_TEMP, NO_BANK,
1521 PC87365_REG_TEMP_CONFIG);
1522 dev_dbg(&pdev->dev, "bios temp-cfg:0x%02x\n", reg);
1523 if (reg & CHAN_ENA) {
1524 dev_dbg(&pdev->dev,
1525 "Forcibly enabling monitoring (TMS)\n");
1526 pc87360_write_value(data, LD_TEMP, NO_BANK,
1527 PC87365_REG_TEMP_CONFIG,
1528 reg & 0xFE);
1529 }
1530
1531 if (init >= 2) {
1532 /* Chip config as documented by National Semi. */
1533 pc87360_write_value(data, LD_TEMP, 0xF, 0xA, 0x08);
1534 /*
1535 * We voluntarily omit the bank here, in case the
1536 * sequence itself matters. It shouldn't be a problem,
1537 * since nobody else is supposed to access the
1538 * device at that point.
1539 */
1540 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xB, 0x04);
1541 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xC, 0x35);
1542 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xD, 0x05);
1543 pc87360_write_value(data, LD_TEMP, NO_BANK, 0xE, 0x05);
1544 }
1545 }
1546}
1547
1548static void pc87360_autodiv(struct device *dev, int nr)
1549{
1550 struct pc87360_data *data = dev_get_drvdata(dev);
1551 u8 old_min = data->fan_min[nr];
1552
1553 /* Increase clock divider if needed and possible */
1554 if ((data->fan_status[nr] & 0x04) /* overflow flag */
1555 || (data->fan[nr] >= 224)) { /* next to overflow */
1556 if ((data->fan_status[nr] & 0x60) != 0x60) {
1557 data->fan_status[nr] += 0x20;
1558 data->fan_min[nr] >>= 1;
1559 data->fan[nr] >>= 1;
1560 dev_dbg(dev,
1561 "Increasing clock divider to %d for fan %d\n",
1562 FAN_DIV_FROM_REG(data->fan_status[nr]), nr + 1);
1563 }
1564 } else {
1565 /* Decrease clock divider if possible */
1566 while (!(data->fan_min[nr] & 0x80) /* min "nails" divider */
1567 && data->fan[nr] < 85 /* bad accuracy */
1568 && (data->fan_status[nr] & 0x60) != 0x00) {
1569 data->fan_status[nr] -= 0x20;
1570 data->fan_min[nr] <<= 1;
1571 data->fan[nr] <<= 1;
1572 dev_dbg(dev,
1573 "Decreasing clock divider to %d for fan %d\n",
1574 FAN_DIV_FROM_REG(data->fan_status[nr]),
1575 nr + 1);
1576 }
1577 }
1578
1579 /* Write new fan min if it changed */
1580 if (old_min != data->fan_min[nr]) {
1581 pc87360_write_value(data, LD_FAN, NO_BANK,
1582 PC87360_REG_FAN_MIN(nr),
1583 data->fan_min[nr]);
1584 }
1585}
1586
1587static struct pc87360_data *pc87360_update_device(struct device *dev)
1588{
1589 struct pc87360_data *data = dev_get_drvdata(dev);
1590 u8 i;
1591
1592 mutex_lock(&data->update_lock);
1593
1594 if (time_after(jiffies, data->last_updated + HZ * 2) || !data->valid) {
1595 dev_dbg(dev, "Data update\n");
1596
1597 /* Fans */
1598 for (i = 0; i < data->fannr; i++) {
1599 if (FAN_CONFIG_MONITOR(data->fan_conf, i)) {
1600 data->fan_status[i] =
1601 pc87360_read_value(data, LD_FAN,
1602 NO_BANK, PC87360_REG_FAN_STATUS(i));
1603 data->fan[i] = pc87360_read_value(data, LD_FAN,
1604 NO_BANK, PC87360_REG_FAN(i));
1605 data->fan_min[i] = pc87360_read_value(data,
1606 LD_FAN, NO_BANK,
1607 PC87360_REG_FAN_MIN(i));
1608 /* Change clock divider if needed */
1609 pc87360_autodiv(dev, i);
1610 /* Clear bits and write new divider */
1611 pc87360_write_value(data, LD_FAN, NO_BANK,
1612 PC87360_REG_FAN_STATUS(i),
1613 data->fan_status[i]);
1614 }
1615 if (FAN_CONFIG_CONTROL(data->fan_conf, i))
1616 data->pwm[i] = pc87360_read_value(data, LD_FAN,
1617 NO_BANK, PC87360_REG_PWM(i));
1618 }
1619
1620 /* Voltages */
1621 for (i = 0; i < data->innr; i++) {
1622 data->in_status[i] = pc87360_read_value(data, LD_IN, i,
1623 PC87365_REG_IN_STATUS);
1624 /* Clear bits */
1625 pc87360_write_value(data, LD_IN, i,
1626 PC87365_REG_IN_STATUS,
1627 data->in_status[i]);
1628 if ((data->in_status[i] & CHAN_READY) == CHAN_READY) {
1629 data->in[i] = pc87360_read_value(data, LD_IN,
1630 i, PC87365_REG_IN);
1631 }
1632 if (data->in_status[i] & CHAN_ENA) {
1633 data->in_min[i] = pc87360_read_value(data,
1634 LD_IN, i,
1635 PC87365_REG_IN_MIN);
1636 data->in_max[i] = pc87360_read_value(data,
1637 LD_IN, i,
1638 PC87365_REG_IN_MAX);
1639 if (i >= 11)
1640 data->in_crit[i-11] =
1641 pc87360_read_value(data, LD_IN,
1642 i, PC87365_REG_TEMP_CRIT);
1643 }
1644 }
1645 if (data->innr) {
1646 data->in_alarms = pc87360_read_value(data, LD_IN,
1647 NO_BANK, PC87365_REG_IN_ALARMS1)
1648 | ((pc87360_read_value(data, LD_IN,
1649 NO_BANK, PC87365_REG_IN_ALARMS2)
1650 & 0x07) << 8);
1651 data->vid = (data->vid_conf & 0xE0) ?
1652 pc87360_read_value(data, LD_IN,
1653 NO_BANK, PC87365_REG_VID) : 0x1F;
1654 }
1655
1656 /* Temperatures */
1657 for (i = 0; i < data->tempnr; i++) {
1658 data->temp_status[i] = pc87360_read_value(data,
1659 LD_TEMP, i,
1660 PC87365_REG_TEMP_STATUS);
1661 /* Clear bits */
1662 pc87360_write_value(data, LD_TEMP, i,
1663 PC87365_REG_TEMP_STATUS,
1664 data->temp_status[i]);
1665 if ((data->temp_status[i] & CHAN_READY) == CHAN_READY) {
1666 data->temp[i] = pc87360_read_value(data,
1667 LD_TEMP, i,
1668 PC87365_REG_TEMP);
1669 }
1670 if (data->temp_status[i] & CHAN_ENA) {
1671 data->temp_min[i] = pc87360_read_value(data,
1672 LD_TEMP, i,
1673 PC87365_REG_TEMP_MIN);
1674 data->temp_max[i] = pc87360_read_value(data,
1675 LD_TEMP, i,
1676 PC87365_REG_TEMP_MAX);
1677 data->temp_crit[i] = pc87360_read_value(data,
1678 LD_TEMP, i,
1679 PC87365_REG_TEMP_CRIT);
1680 }
1681 }
1682 if (data->tempnr) {
1683 data->temp_alarms = pc87360_read_value(data, LD_TEMP,
1684 NO_BANK, PC87365_REG_TEMP_ALARMS)
1685 & 0x3F;
1686 }
1687
1688 data->last_updated = jiffies;
1689 data->valid = 1;
1690 }
1691
1692 mutex_unlock(&data->update_lock);
1693
1694 return data;
1695}
1696
1697static int __init pc87360_device_add(unsigned short address)
1698{
1699 struct resource res[3];
1700 int err, i, res_count;
1701
1702 pdev = platform_device_alloc("pc87360", address);
1703 if (!pdev) {
1704 err = -ENOMEM;
1705 pr_err("Device allocation failed\n");
1706 goto exit;
1707 }
1708
1709 memset(res, 0, 3 * sizeof(struct resource));
1710 res_count = 0;
1711 for (i = 0; i < 3; i++) {
1712 if (!extra_isa[i])
1713 continue;
1714 res[res_count].start = extra_isa[i];
1715 res[res_count].end = extra_isa[i] + PC87360_EXTENT - 1;
1716 res[res_count].name = "pc87360",
1717 res[res_count].flags = IORESOURCE_IO,
1718
1719 err = acpi_check_resource_conflict(&res[res_count]);
1720 if (err)
1721 goto exit_device_put;
1722
1723 res_count++;
1724 }
1725
1726 err = platform_device_add_resources(pdev, res, res_count);
1727 if (err) {
1728 pr_err("Device resources addition failed (%d)\n", err);
1729 goto exit_device_put;
1730 }
1731
1732 err = platform_device_add(pdev);
1733 if (err) {
1734 pr_err("Device addition failed (%d)\n", err);
1735 goto exit_device_put;
1736 }
1737
1738 return 0;
1739
1740exit_device_put:
1741 platform_device_put(pdev);
1742exit:
1743 return err;
1744}
1745
1746static int __init pc87360_init(void)
1747{
1748 int err, i;
1749 unsigned short address = 0;
1750
1751 if (pc87360_find(0x2e, &devid, extra_isa)
1752 && pc87360_find(0x4e, &devid, extra_isa)) {
1753 pr_warn("PC8736x not detected, module not inserted\n");
1754 return -ENODEV;
1755 }
1756
1757 /* Arbitrarily pick one of the addresses */
1758 for (i = 0; i < 3; i++) {
1759 if (extra_isa[i] != 0x0000) {
1760 address = extra_isa[i];
1761 break;
1762 }
1763 }
1764
1765 if (address == 0x0000) {
1766 pr_warn("No active logical device, module not inserted\n");
1767 return -ENODEV;
1768 }
1769
1770 err = platform_driver_register(&pc87360_driver);
1771 if (err)
1772 goto exit;
1773
1774 /* Sets global pdev as a side effect */
1775 err = pc87360_device_add(address);
1776 if (err)
1777 goto exit_driver;
1778
1779 return 0;
1780
1781 exit_driver:
1782 platform_driver_unregister(&pc87360_driver);
1783 exit:
1784 return err;
1785}
1786
1787static void __exit pc87360_exit(void)
1788{
1789 platform_device_unregister(pdev);
1790 platform_driver_unregister(&pc87360_driver);
1791}
1792
1793
1794MODULE_AUTHOR("Jean Delvare <jdelvare@suse.de>");
1795MODULE_DESCRIPTION("PC8736x hardware monitor");
1796MODULE_LICENSE("GPL");
1797
1798module_init(pc87360_init);
1799module_exit(pc87360_exit);
1800