blob: d7d1f24671009a4e72240e5a887b879ca699527a [file] [log] [blame]
rjw1f884582022-01-06 17:20:42 +08001/*
2 * adt7475 - Thermal sensor driver for the ADT7475 chip and derivatives
3 * Copyright (C) 2007-2008, Advanced Micro Devices, Inc.
4 * Copyright (C) 2008 Jordan Crouse <jordan@cosmicpenguin.net>
5 * Copyright (C) 2008 Hans de Goede <hdegoede@redhat.com>
6 * Copyright (C) 2009 Jean Delvare <jdelvare@suse.de>
7 *
8 * Derived from the lm83 driver by Jean Delvare
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License version 2 as
12 * published by the Free Software Foundation.
13 */
14
15#include <linux/module.h>
16#include <linux/of_device.h>
17#include <linux/init.h>
18#include <linux/slab.h>
19#include <linux/i2c.h>
20#include <linux/hwmon.h>
21#include <linux/hwmon-sysfs.h>
22#include <linux/hwmon-vid.h>
23#include <linux/err.h>
24#include <linux/jiffies.h>
25#include <linux/util_macros.h>
26
27/* Indexes for the sysfs hooks */
28
29#define INPUT 0
30#define MIN 1
31#define MAX 2
32#define CONTROL 3
33#define OFFSET 3
34#define AUTOMIN 4
35#define THERM 5
36#define HYSTERSIS 6
37
38/*
39 * These are unique identifiers for the sysfs functions - unlike the
40 * numbers above, these are not also indexes into an array
41 */
42
43#define ALARM 9
44#define FAULT 10
45
46/* 7475 Common Registers */
47
48#define REG_DEVREV2 0x12 /* ADT7490 only */
49
50#define REG_VTT 0x1E /* ADT7490 only */
51#define REG_EXTEND3 0x1F /* ADT7490 only */
52
53#define REG_VOLTAGE_BASE 0x20
54#define REG_TEMP_BASE 0x25
55#define REG_TACH_BASE 0x28
56#define REG_PWM_BASE 0x30
57#define REG_PWM_MAX_BASE 0x38
58
59#define REG_DEVID 0x3D
60#define REG_VENDID 0x3E
61#define REG_DEVID2 0x3F
62
63#define REG_CONFIG1 0x40
64
65#define REG_STATUS1 0x41
66#define REG_STATUS2 0x42
67
68#define REG_VID 0x43 /* ADT7476 only */
69
70#define REG_VOLTAGE_MIN_BASE 0x44
71#define REG_VOLTAGE_MAX_BASE 0x45
72
73#define REG_TEMP_MIN_BASE 0x4E
74#define REG_TEMP_MAX_BASE 0x4F
75
76#define REG_TACH_MIN_BASE 0x54
77
78#define REG_PWM_CONFIG_BASE 0x5C
79
80#define REG_TEMP_TRANGE_BASE 0x5F
81
82#define REG_ENHANCE_ACOUSTICS1 0x62
83#define REG_ENHANCE_ACOUSTICS2 0x63
84
85#define REG_PWM_MIN_BASE 0x64
86
87#define REG_TEMP_TMIN_BASE 0x67
88#define REG_TEMP_THERM_BASE 0x6A
89
90#define REG_REMOTE1_HYSTERSIS 0x6D
91#define REG_REMOTE2_HYSTERSIS 0x6E
92
93#define REG_TEMP_OFFSET_BASE 0x70
94
95#define REG_CONFIG2 0x73
96
97#define REG_EXTEND1 0x76
98#define REG_EXTEND2 0x77
99
100#define REG_CONFIG3 0x78
101#define REG_CONFIG5 0x7C
102#define REG_CONFIG4 0x7D
103
104#define REG_STATUS4 0x81 /* ADT7490 only */
105
106#define REG_VTT_MIN 0x84 /* ADT7490 only */
107#define REG_VTT_MAX 0x86 /* ADT7490 only */
108
109#define VID_VIDSEL 0x80 /* ADT7476 only */
110
111#define CONFIG2_ATTN 0x20
112
113#define CONFIG3_SMBALERT 0x01
114#define CONFIG3_THERM 0x02
115
116#define CONFIG4_PINFUNC 0x03
117#define CONFIG4_MAXDUTY 0x08
118#define CONFIG4_ATTN_IN10 0x30
119#define CONFIG4_ATTN_IN43 0xC0
120
121#define CONFIG5_TWOSCOMP 0x01
122#define CONFIG5_TEMPOFFSET 0x02
123#define CONFIG5_VIDGPIO 0x10 /* ADT7476 only */
124
125/* ADT7475 Settings */
126
127#define ADT7475_VOLTAGE_COUNT 5 /* Not counting Vtt */
128#define ADT7475_TEMP_COUNT 3
129#define ADT7475_TACH_COUNT 4
130#define ADT7475_PWM_COUNT 3
131
132/* Macro to read the registers */
133
134#define adt7475_read(reg) i2c_smbus_read_byte_data(client, (reg))
135
136/* Macros to easily index the registers */
137
138#define TACH_REG(idx) (REG_TACH_BASE + ((idx) * 2))
139#define TACH_MIN_REG(idx) (REG_TACH_MIN_BASE + ((idx) * 2))
140
141#define PWM_REG(idx) (REG_PWM_BASE + (idx))
142#define PWM_MAX_REG(idx) (REG_PWM_MAX_BASE + (idx))
143#define PWM_MIN_REG(idx) (REG_PWM_MIN_BASE + (idx))
144#define PWM_CONFIG_REG(idx) (REG_PWM_CONFIG_BASE + (idx))
145
146#define VOLTAGE_REG(idx) (REG_VOLTAGE_BASE + (idx))
147#define VOLTAGE_MIN_REG(idx) (REG_VOLTAGE_MIN_BASE + ((idx) * 2))
148#define VOLTAGE_MAX_REG(idx) (REG_VOLTAGE_MAX_BASE + ((idx) * 2))
149
150#define TEMP_REG(idx) (REG_TEMP_BASE + (idx))
151#define TEMP_MIN_REG(idx) (REG_TEMP_MIN_BASE + ((idx) * 2))
152#define TEMP_MAX_REG(idx) (REG_TEMP_MAX_BASE + ((idx) * 2))
153#define TEMP_TMIN_REG(idx) (REG_TEMP_TMIN_BASE + (idx))
154#define TEMP_THERM_REG(idx) (REG_TEMP_THERM_BASE + (idx))
155#define TEMP_OFFSET_REG(idx) (REG_TEMP_OFFSET_BASE + (idx))
156#define TEMP_TRANGE_REG(idx) (REG_TEMP_TRANGE_BASE + (idx))
157
158static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END };
159
160enum chips { adt7473, adt7475, adt7476, adt7490 };
161
162static const struct i2c_device_id adt7475_id[] = {
163 { "adt7473", adt7473 },
164 { "adt7475", adt7475 },
165 { "adt7476", adt7476 },
166 { "adt7490", adt7490 },
167 { }
168};
169MODULE_DEVICE_TABLE(i2c, adt7475_id);
170
171static const struct of_device_id adt7475_of_match[] = {
172 {
173 .compatible = "adi,adt7473",
174 .data = (void *)adt7473
175 },
176 {
177 .compatible = "adi,adt7475",
178 .data = (void *)adt7475
179 },
180 {
181 .compatible = "adi,adt7476",
182 .data = (void *)adt7476
183 },
184 {
185 .compatible = "adi,adt7490",
186 .data = (void *)adt7490
187 },
188 { },
189};
190MODULE_DEVICE_TABLE(of, adt7475_of_match);
191
192struct adt7475_data {
193 struct device *hwmon_dev;
194 struct mutex lock;
195
196 unsigned long measure_updated;
197 unsigned long limits_updated;
198 char valid;
199
200 u8 config4;
201 u8 config5;
202 u8 has_voltage;
203 u8 bypass_attn; /* Bypass voltage attenuator */
204 u8 has_pwm2:1;
205 u8 has_fan4:1;
206 u8 has_vid:1;
207 u32 alarms;
208 u16 voltage[3][6];
209 u16 temp[7][3];
210 u16 tach[2][4];
211 u8 pwm[4][3];
212 u8 range[3];
213 u8 pwmctl[3];
214 u8 pwmchan[3];
215 u8 enh_acoustics[2];
216
217 u8 vid;
218 u8 vrm;
219};
220
221static struct i2c_driver adt7475_driver;
222static struct adt7475_data *adt7475_update_device(struct device *dev);
223static void adt7475_read_hystersis(struct i2c_client *client);
224static void adt7475_read_pwm(struct i2c_client *client, int index);
225
226/* Given a temp value, convert it to register value */
227
228static inline u16 temp2reg(struct adt7475_data *data, long val)
229{
230 u16 ret;
231
232 if (!(data->config5 & CONFIG5_TWOSCOMP)) {
233 val = clamp_val(val, -64000, 191000);
234 ret = (val + 64500) / 1000;
235 } else {
236 val = clamp_val(val, -128000, 127000);
237 if (val < -500)
238 ret = (256500 + val) / 1000;
239 else
240 ret = (val + 500) / 1000;
241 }
242
243 return ret << 2;
244}
245
246/* Given a register value, convert it to a real temp value */
247
248static inline int reg2temp(struct adt7475_data *data, u16 reg)
249{
250 if (data->config5 & CONFIG5_TWOSCOMP) {
251 if (reg >= 512)
252 return (reg - 1024) * 250;
253 else
254 return reg * 250;
255 } else
256 return (reg - 256) * 250;
257}
258
259static inline int tach2rpm(u16 tach)
260{
261 if (tach == 0 || tach == 0xFFFF)
262 return 0;
263
264 return (90000 * 60) / tach;
265}
266
267static inline u16 rpm2tach(unsigned long rpm)
268{
269 if (rpm == 0)
270 return 0;
271
272 return clamp_val((90000 * 60) / rpm, 1, 0xFFFF);
273}
274
275/* Scaling factors for voltage inputs, taken from the ADT7490 datasheet */
276static const int adt7473_in_scaling[ADT7475_VOLTAGE_COUNT + 1][2] = {
277 { 45, 94 }, /* +2.5V */
278 { 175, 525 }, /* Vccp */
279 { 68, 71 }, /* Vcc */
280 { 93, 47 }, /* +5V */
281 { 120, 20 }, /* +12V */
282 { 45, 45 }, /* Vtt */
283};
284
285static inline int reg2volt(int channel, u16 reg, u8 bypass_attn)
286{
287 const int *r = adt7473_in_scaling[channel];
288
289 if (bypass_attn & (1 << channel))
290 return DIV_ROUND_CLOSEST(reg * 2250, 1024);
291 return DIV_ROUND_CLOSEST(reg * (r[0] + r[1]) * 2250, r[1] * 1024);
292}
293
294static inline u16 volt2reg(int channel, long volt, u8 bypass_attn)
295{
296 const int *r = adt7473_in_scaling[channel];
297 long reg;
298
299 if (bypass_attn & (1 << channel))
300 reg = DIV_ROUND_CLOSEST(volt * 1024, 2250);
301 else
302 reg = DIV_ROUND_CLOSEST(volt * r[1] * 1024,
303 (r[0] + r[1]) * 2250);
304 return clamp_val(reg, 0, 1023) & (0xff << 2);
305}
306
307static int adt7475_read_word(struct i2c_client *client, int reg)
308{
309 int val1, val2;
310
311 val1 = i2c_smbus_read_byte_data(client, reg);
312 if (val1 < 0)
313 return val1;
314 val2 = i2c_smbus_read_byte_data(client, reg + 1);
315 if (val2 < 0)
316 return val2;
317
318 return val1 | (val2 << 8);
319}
320
321static void adt7475_write_word(struct i2c_client *client, int reg, u16 val)
322{
323 i2c_smbus_write_byte_data(client, reg + 1, val >> 8);
324 i2c_smbus_write_byte_data(client, reg, val & 0xFF);
325}
326
327static ssize_t show_voltage(struct device *dev, struct device_attribute *attr,
328 char *buf)
329{
330 struct adt7475_data *data = adt7475_update_device(dev);
331 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
332 unsigned short val;
333
334 switch (sattr->nr) {
335 case ALARM:
336 return sprintf(buf, "%d\n",
337 (data->alarms >> sattr->index) & 1);
338 default:
339 val = data->voltage[sattr->nr][sattr->index];
340 return sprintf(buf, "%d\n",
341 reg2volt(sattr->index, val, data->bypass_attn));
342 }
343}
344
345static ssize_t set_voltage(struct device *dev, struct device_attribute *attr,
346 const char *buf, size_t count)
347{
348
349 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
350 struct i2c_client *client = to_i2c_client(dev);
351 struct adt7475_data *data = i2c_get_clientdata(client);
352 unsigned char reg;
353 long val;
354
355 if (kstrtol(buf, 10, &val))
356 return -EINVAL;
357
358 mutex_lock(&data->lock);
359
360 data->voltage[sattr->nr][sattr->index] =
361 volt2reg(sattr->index, val, data->bypass_attn);
362
363 if (sattr->index < ADT7475_VOLTAGE_COUNT) {
364 if (sattr->nr == MIN)
365 reg = VOLTAGE_MIN_REG(sattr->index);
366 else
367 reg = VOLTAGE_MAX_REG(sattr->index);
368 } else {
369 if (sattr->nr == MIN)
370 reg = REG_VTT_MIN;
371 else
372 reg = REG_VTT_MAX;
373 }
374
375 i2c_smbus_write_byte_data(client, reg,
376 data->voltage[sattr->nr][sattr->index] >> 2);
377 mutex_unlock(&data->lock);
378
379 return count;
380}
381
382static ssize_t show_temp(struct device *dev, struct device_attribute *attr,
383 char *buf)
384{
385 struct adt7475_data *data = adt7475_update_device(dev);
386 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
387 int out;
388
389 switch (sattr->nr) {
390 case HYSTERSIS:
391 mutex_lock(&data->lock);
392 out = data->temp[sattr->nr][sattr->index];
393 if (sattr->index != 1)
394 out = (out >> 4) & 0xF;
395 else
396 out = (out & 0xF);
397 /*
398 * Show the value as an absolute number tied to
399 * THERM
400 */
401 out = reg2temp(data, data->temp[THERM][sattr->index]) -
402 out * 1000;
403 mutex_unlock(&data->lock);
404 break;
405
406 case OFFSET:
407 /*
408 * Offset is always 2's complement, regardless of the
409 * setting in CONFIG5
410 */
411 mutex_lock(&data->lock);
412 out = (s8)data->temp[sattr->nr][sattr->index];
413 if (data->config5 & CONFIG5_TEMPOFFSET)
414 out *= 1000;
415 else
416 out *= 500;
417 mutex_unlock(&data->lock);
418 break;
419
420 case ALARM:
421 out = (data->alarms >> (sattr->index + 4)) & 1;
422 break;
423
424 case FAULT:
425 /* Note - only for remote1 and remote2 */
426 out = !!(data->alarms & (sattr->index ? 0x8000 : 0x4000));
427 break;
428
429 default:
430 /* All other temp values are in the configured format */
431 out = reg2temp(data, data->temp[sattr->nr][sattr->index]);
432 }
433
434 return sprintf(buf, "%d\n", out);
435}
436
437static ssize_t set_temp(struct device *dev, struct device_attribute *attr,
438 const char *buf, size_t count)
439{
440 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
441 struct i2c_client *client = to_i2c_client(dev);
442 struct adt7475_data *data = i2c_get_clientdata(client);
443 unsigned char reg = 0;
444 u8 out;
445 int temp;
446 long val;
447
448 if (kstrtol(buf, 10, &val))
449 return -EINVAL;
450
451 mutex_lock(&data->lock);
452
453 /* We need the config register in all cases for temp <-> reg conv. */
454 data->config5 = adt7475_read(REG_CONFIG5);
455
456 switch (sattr->nr) {
457 case OFFSET:
458 if (data->config5 & CONFIG5_TEMPOFFSET) {
459 val = clamp_val(val, -63000, 127000);
460 out = data->temp[OFFSET][sattr->index] = val / 1000;
461 } else {
462 val = clamp_val(val, -63000, 64000);
463 out = data->temp[OFFSET][sattr->index] = val / 500;
464 }
465 break;
466
467 case HYSTERSIS:
468 /*
469 * The value will be given as an absolute value, turn it
470 * into an offset based on THERM
471 */
472
473 /* Read fresh THERM and HYSTERSIS values from the chip */
474 data->temp[THERM][sattr->index] =
475 adt7475_read(TEMP_THERM_REG(sattr->index)) << 2;
476 adt7475_read_hystersis(client);
477
478 temp = reg2temp(data, data->temp[THERM][sattr->index]);
479 val = clamp_val(val, temp - 15000, temp);
480 val = (temp - val) / 1000;
481
482 if (sattr->index != 1) {
483 data->temp[HYSTERSIS][sattr->index] &= 0xF0;
484 data->temp[HYSTERSIS][sattr->index] |= (val & 0xF) << 4;
485 } else {
486 data->temp[HYSTERSIS][sattr->index] &= 0x0F;
487 data->temp[HYSTERSIS][sattr->index] |= (val & 0xF);
488 }
489
490 out = data->temp[HYSTERSIS][sattr->index];
491 break;
492
493 default:
494 data->temp[sattr->nr][sattr->index] = temp2reg(data, val);
495
496 /*
497 * We maintain an extra 2 digits of precision for simplicity
498 * - shift those back off before writing the value
499 */
500 out = (u8) (data->temp[sattr->nr][sattr->index] >> 2);
501 }
502
503 switch (sattr->nr) {
504 case MIN:
505 reg = TEMP_MIN_REG(sattr->index);
506 break;
507 case MAX:
508 reg = TEMP_MAX_REG(sattr->index);
509 break;
510 case OFFSET:
511 reg = TEMP_OFFSET_REG(sattr->index);
512 break;
513 case AUTOMIN:
514 reg = TEMP_TMIN_REG(sattr->index);
515 break;
516 case THERM:
517 reg = TEMP_THERM_REG(sattr->index);
518 break;
519 case HYSTERSIS:
520 if (sattr->index != 2)
521 reg = REG_REMOTE1_HYSTERSIS;
522 else
523 reg = REG_REMOTE2_HYSTERSIS;
524
525 break;
526 }
527
528 i2c_smbus_write_byte_data(client, reg, out);
529
530 mutex_unlock(&data->lock);
531 return count;
532}
533
534/* Assuming CONFIG6[SLOW] is 0 */
535static const int ad7475_st_map[] = {
536 37500, 18800, 12500, 7500, 4700, 3100, 1600, 800,
537};
538
539static ssize_t show_temp_st(struct device *dev, struct device_attribute *attr,
540 char *buf)
541{
542 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
543 struct i2c_client *client = to_i2c_client(dev);
544 struct adt7475_data *data = i2c_get_clientdata(client);
545 long val;
546
547 switch (sattr->index) {
548 case 0:
549 val = data->enh_acoustics[0] & 0xf;
550 break;
551 case 1:
552 val = (data->enh_acoustics[1] >> 4) & 0xf;
553 break;
554 case 2:
555 default:
556 val = data->enh_acoustics[1] & 0xf;
557 break;
558 }
559
560 if (val & 0x8)
561 return sprintf(buf, "%d\n", ad7475_st_map[val & 0x7]);
562 else
563 return sprintf(buf, "0\n");
564}
565
566static ssize_t set_temp_st(struct device *dev, struct device_attribute *attr,
567 const char *buf, size_t count)
568{
569 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
570 struct i2c_client *client = to_i2c_client(dev);
571 struct adt7475_data *data = i2c_get_clientdata(client);
572 unsigned char reg;
573 int shift, idx;
574 ulong val;
575
576 if (kstrtoul(buf, 10, &val))
577 return -EINVAL;
578
579 switch (sattr->index) {
580 case 0:
581 reg = REG_ENHANCE_ACOUSTICS1;
582 shift = 0;
583 idx = 0;
584 break;
585 case 1:
586 reg = REG_ENHANCE_ACOUSTICS2;
587 shift = 0;
588 idx = 1;
589 break;
590 case 2:
591 default:
592 reg = REG_ENHANCE_ACOUSTICS2;
593 shift = 4;
594 idx = 1;
595 break;
596 }
597
598 if (val > 0) {
599 val = find_closest_descending(val, ad7475_st_map,
600 ARRAY_SIZE(ad7475_st_map));
601 val |= 0x8;
602 }
603
604 mutex_lock(&data->lock);
605
606 data->enh_acoustics[idx] &= ~(0xf << shift);
607 data->enh_acoustics[idx] |= (val << shift);
608
609 i2c_smbus_write_byte_data(client, reg, data->enh_acoustics[idx]);
610
611 mutex_unlock(&data->lock);
612
613 return count;
614}
615
616/*
617 * Table of autorange values - the user will write the value in millidegrees,
618 * and we'll convert it
619 */
620static const int autorange_table[] = {
621 2000, 2500, 3330, 4000, 5000, 6670, 8000,
622 10000, 13330, 16000, 20000, 26670, 32000, 40000,
623 53330, 80000
624};
625
626static ssize_t show_point2(struct device *dev, struct device_attribute *attr,
627 char *buf)
628{
629 struct adt7475_data *data = adt7475_update_device(dev);
630 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
631 int out, val;
632
633 mutex_lock(&data->lock);
634 out = (data->range[sattr->index] >> 4) & 0x0F;
635 val = reg2temp(data, data->temp[AUTOMIN][sattr->index]);
636 mutex_unlock(&data->lock);
637
638 return sprintf(buf, "%d\n", val + autorange_table[out]);
639}
640
641static ssize_t set_point2(struct device *dev, struct device_attribute *attr,
642 const char *buf, size_t count)
643{
644 struct i2c_client *client = to_i2c_client(dev);
645 struct adt7475_data *data = i2c_get_clientdata(client);
646 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
647 int temp;
648 long val;
649
650 if (kstrtol(buf, 10, &val))
651 return -EINVAL;
652
653 mutex_lock(&data->lock);
654
655 /* Get a fresh copy of the needed registers */
656 data->config5 = adt7475_read(REG_CONFIG5);
657 data->temp[AUTOMIN][sattr->index] =
658 adt7475_read(TEMP_TMIN_REG(sattr->index)) << 2;
659 data->range[sattr->index] =
660 adt7475_read(TEMP_TRANGE_REG(sattr->index));
661
662 /*
663 * The user will write an absolute value, so subtract the start point
664 * to figure the range
665 */
666 temp = reg2temp(data, data->temp[AUTOMIN][sattr->index]);
667 val = clamp_val(val, temp + autorange_table[0],
668 temp + autorange_table[ARRAY_SIZE(autorange_table) - 1]);
669 val -= temp;
670
671 /* Find the nearest table entry to what the user wrote */
672 val = find_closest(val, autorange_table, ARRAY_SIZE(autorange_table));
673
674 data->range[sattr->index] &= ~0xF0;
675 data->range[sattr->index] |= val << 4;
676
677 i2c_smbus_write_byte_data(client, TEMP_TRANGE_REG(sattr->index),
678 data->range[sattr->index]);
679
680 mutex_unlock(&data->lock);
681 return count;
682}
683
684static ssize_t show_tach(struct device *dev, struct device_attribute *attr,
685 char *buf)
686{
687 struct adt7475_data *data = adt7475_update_device(dev);
688 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
689 int out;
690
691 if (sattr->nr == ALARM)
692 out = (data->alarms >> (sattr->index + 10)) & 1;
693 else
694 out = tach2rpm(data->tach[sattr->nr][sattr->index]);
695
696 return sprintf(buf, "%d\n", out);
697}
698
699static ssize_t set_tach(struct device *dev, struct device_attribute *attr,
700 const char *buf, size_t count)
701{
702
703 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
704 struct i2c_client *client = to_i2c_client(dev);
705 struct adt7475_data *data = i2c_get_clientdata(client);
706 unsigned long val;
707
708 if (kstrtoul(buf, 10, &val))
709 return -EINVAL;
710
711 mutex_lock(&data->lock);
712
713 data->tach[MIN][sattr->index] = rpm2tach(val);
714
715 adt7475_write_word(client, TACH_MIN_REG(sattr->index),
716 data->tach[MIN][sattr->index]);
717
718 mutex_unlock(&data->lock);
719 return count;
720}
721
722static ssize_t show_pwm(struct device *dev, struct device_attribute *attr,
723 char *buf)
724{
725 struct adt7475_data *data = adt7475_update_device(dev);
726 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
727
728 return sprintf(buf, "%d\n", data->pwm[sattr->nr][sattr->index]);
729}
730
731static ssize_t show_pwmchan(struct device *dev, struct device_attribute *attr,
732 char *buf)
733{
734 struct adt7475_data *data = adt7475_update_device(dev);
735 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
736
737 return sprintf(buf, "%d\n", data->pwmchan[sattr->index]);
738}
739
740static ssize_t show_pwmctrl(struct device *dev, struct device_attribute *attr,
741 char *buf)
742{
743 struct adt7475_data *data = adt7475_update_device(dev);
744 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
745
746 return sprintf(buf, "%d\n", data->pwmctl[sattr->index]);
747}
748
749static ssize_t set_pwm(struct device *dev, struct device_attribute *attr,
750 const char *buf, size_t count)
751{
752
753 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
754 struct i2c_client *client = to_i2c_client(dev);
755 struct adt7475_data *data = i2c_get_clientdata(client);
756 unsigned char reg = 0;
757 long val;
758
759 if (kstrtol(buf, 10, &val))
760 return -EINVAL;
761
762 mutex_lock(&data->lock);
763
764 switch (sattr->nr) {
765 case INPUT:
766 /* Get a fresh value for CONTROL */
767 data->pwm[CONTROL][sattr->index] =
768 adt7475_read(PWM_CONFIG_REG(sattr->index));
769
770 /*
771 * If we are not in manual mode, then we shouldn't allow
772 * the user to set the pwm speed
773 */
774 if (((data->pwm[CONTROL][sattr->index] >> 5) & 7) != 7) {
775 mutex_unlock(&data->lock);
776 return count;
777 }
778
779 reg = PWM_REG(sattr->index);
780 break;
781
782 case MIN:
783 reg = PWM_MIN_REG(sattr->index);
784 break;
785
786 case MAX:
787 reg = PWM_MAX_REG(sattr->index);
788 break;
789 }
790
791 data->pwm[sattr->nr][sattr->index] = clamp_val(val, 0, 0xFF);
792 i2c_smbus_write_byte_data(client, reg,
793 data->pwm[sattr->nr][sattr->index]);
794 mutex_unlock(&data->lock);
795
796 return count;
797}
798
799static ssize_t show_stall_disable(struct device *dev,
800 struct device_attribute *attr, char *buf)
801{
802 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
803 struct i2c_client *client = to_i2c_client(dev);
804 struct adt7475_data *data = i2c_get_clientdata(client);
805 u8 mask = BIT(5 + sattr->index);
806
807 return sprintf(buf, "%d\n", !!(data->enh_acoustics[0] & mask));
808}
809
810static ssize_t set_stall_disable(struct device *dev,
811 struct device_attribute *attr, const char *buf,
812 size_t count)
813{
814 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
815 struct i2c_client *client = to_i2c_client(dev);
816 struct adt7475_data *data = i2c_get_clientdata(client);
817 long val;
818 u8 mask = BIT(5 + sattr->index);
819
820 if (kstrtol(buf, 10, &val))
821 return -EINVAL;
822
823 mutex_lock(&data->lock);
824
825 data->enh_acoustics[0] &= ~mask;
826 if (val)
827 data->enh_acoustics[0] |= mask;
828
829 i2c_smbus_write_byte_data(client, REG_ENHANCE_ACOUSTICS1,
830 data->enh_acoustics[0]);
831
832 mutex_unlock(&data->lock);
833
834 return count;
835}
836
837/* Called by set_pwmctrl and set_pwmchan */
838
839static int hw_set_pwm(struct i2c_client *client, int index,
840 unsigned int pwmctl, unsigned int pwmchan)
841{
842 struct adt7475_data *data = i2c_get_clientdata(client);
843 long val = 0;
844
845 switch (pwmctl) {
846 case 0:
847 val = 0x03; /* Run at full speed */
848 break;
849 case 1:
850 val = 0x07; /* Manual mode */
851 break;
852 case 2:
853 switch (pwmchan) {
854 case 1:
855 /* Remote1 controls PWM */
856 val = 0x00;
857 break;
858 case 2:
859 /* local controls PWM */
860 val = 0x01;
861 break;
862 case 4:
863 /* remote2 controls PWM */
864 val = 0x02;
865 break;
866 case 6:
867 /* local/remote2 control PWM */
868 val = 0x05;
869 break;
870 case 7:
871 /* All three control PWM */
872 val = 0x06;
873 break;
874 default:
875 return -EINVAL;
876 }
877 break;
878 default:
879 return -EINVAL;
880 }
881
882 data->pwmctl[index] = pwmctl;
883 data->pwmchan[index] = pwmchan;
884
885 data->pwm[CONTROL][index] &= ~0xE0;
886 data->pwm[CONTROL][index] |= (val & 7) << 5;
887
888 i2c_smbus_write_byte_data(client, PWM_CONFIG_REG(index),
889 data->pwm[CONTROL][index]);
890
891 return 0;
892}
893
894static ssize_t set_pwmchan(struct device *dev, struct device_attribute *attr,
895 const char *buf, size_t count)
896{
897 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
898 struct i2c_client *client = to_i2c_client(dev);
899 struct adt7475_data *data = i2c_get_clientdata(client);
900 int r;
901 long val;
902
903 if (kstrtol(buf, 10, &val))
904 return -EINVAL;
905
906 mutex_lock(&data->lock);
907 /* Read Modify Write PWM values */
908 adt7475_read_pwm(client, sattr->index);
909 r = hw_set_pwm(client, sattr->index, data->pwmctl[sattr->index], val);
910 if (r)
911 count = r;
912 mutex_unlock(&data->lock);
913
914 return count;
915}
916
917static ssize_t set_pwmctrl(struct device *dev, struct device_attribute *attr,
918 const char *buf, size_t count)
919{
920 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
921 struct i2c_client *client = to_i2c_client(dev);
922 struct adt7475_data *data = i2c_get_clientdata(client);
923 int r;
924 long val;
925
926 if (kstrtol(buf, 10, &val))
927 return -EINVAL;
928
929 mutex_lock(&data->lock);
930 /* Read Modify Write PWM values */
931 adt7475_read_pwm(client, sattr->index);
932 r = hw_set_pwm(client, sattr->index, val, data->pwmchan[sattr->index]);
933 if (r)
934 count = r;
935 mutex_unlock(&data->lock);
936
937 return count;
938}
939
940/* List of frequencies for the PWM */
941static const int pwmfreq_table[] = {
942 11, 14, 22, 29, 35, 44, 58, 88, 22500
943};
944
945static ssize_t show_pwmfreq(struct device *dev, struct device_attribute *attr,
946 char *buf)
947{
948 struct adt7475_data *data = adt7475_update_device(dev);
949 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
950 int i = clamp_val(data->range[sattr->index] & 0xf, 0,
951 ARRAY_SIZE(pwmfreq_table) - 1);
952
953 return sprintf(buf, "%d\n", pwmfreq_table[i]);
954}
955
956static ssize_t set_pwmfreq(struct device *dev, struct device_attribute *attr,
957 const char *buf, size_t count)
958{
959 struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr);
960 struct i2c_client *client = to_i2c_client(dev);
961 struct adt7475_data *data = i2c_get_clientdata(client);
962 int out;
963 long val;
964
965 if (kstrtol(buf, 10, &val))
966 return -EINVAL;
967
968 out = find_closest(val, pwmfreq_table, ARRAY_SIZE(pwmfreq_table));
969
970 mutex_lock(&data->lock);
971
972 data->range[sattr->index] =
973 adt7475_read(TEMP_TRANGE_REG(sattr->index));
974 data->range[sattr->index] &= ~0xf;
975 data->range[sattr->index] |= out;
976
977 i2c_smbus_write_byte_data(client, TEMP_TRANGE_REG(sattr->index),
978 data->range[sattr->index]);
979
980 mutex_unlock(&data->lock);
981 return count;
982}
983
984static ssize_t pwm_use_point2_pwm_at_crit_show(struct device *dev,
985 struct device_attribute *devattr,
986 char *buf)
987{
988 struct adt7475_data *data = adt7475_update_device(dev);
989 return sprintf(buf, "%d\n", !!(data->config4 & CONFIG4_MAXDUTY));
990}
991
992static ssize_t pwm_use_point2_pwm_at_crit_store(struct device *dev,
993 struct device_attribute *devattr,
994 const char *buf, size_t count)
995{
996 struct i2c_client *client = to_i2c_client(dev);
997 struct adt7475_data *data = i2c_get_clientdata(client);
998 long val;
999
1000 if (kstrtol(buf, 10, &val))
1001 return -EINVAL;
1002 if (val != 0 && val != 1)
1003 return -EINVAL;
1004
1005 mutex_lock(&data->lock);
1006 data->config4 = i2c_smbus_read_byte_data(client, REG_CONFIG4);
1007 if (val)
1008 data->config4 |= CONFIG4_MAXDUTY;
1009 else
1010 data->config4 &= ~CONFIG4_MAXDUTY;
1011 i2c_smbus_write_byte_data(client, REG_CONFIG4, data->config4);
1012 mutex_unlock(&data->lock);
1013
1014 return count;
1015}
1016
1017static ssize_t vrm_show(struct device *dev, struct device_attribute *devattr,
1018 char *buf)
1019{
1020 struct adt7475_data *data = dev_get_drvdata(dev);
1021 return sprintf(buf, "%d\n", (int)data->vrm);
1022}
1023
1024static ssize_t vrm_store(struct device *dev, struct device_attribute *devattr,
1025 const char *buf, size_t count)
1026{
1027 struct adt7475_data *data = dev_get_drvdata(dev);
1028 long val;
1029
1030 if (kstrtol(buf, 10, &val))
1031 return -EINVAL;
1032 if (val < 0 || val > 255)
1033 return -EINVAL;
1034 data->vrm = val;
1035
1036 return count;
1037}
1038
1039static ssize_t cpu0_vid_show(struct device *dev,
1040 struct device_attribute *devattr, char *buf)
1041{
1042 struct adt7475_data *data = adt7475_update_device(dev);
1043 return sprintf(buf, "%d\n", vid_from_reg(data->vid, data->vrm));
1044}
1045
1046static SENSOR_DEVICE_ATTR_2(in0_input, S_IRUGO, show_voltage, NULL, INPUT, 0);
1047static SENSOR_DEVICE_ATTR_2(in0_max, S_IRUGO | S_IWUSR, show_voltage,
1048 set_voltage, MAX, 0);
1049static SENSOR_DEVICE_ATTR_2(in0_min, S_IRUGO | S_IWUSR, show_voltage,
1050 set_voltage, MIN, 0);
1051static SENSOR_DEVICE_ATTR_2(in0_alarm, S_IRUGO, show_voltage, NULL, ALARM, 0);
1052static SENSOR_DEVICE_ATTR_2(in1_input, S_IRUGO, show_voltage, NULL, INPUT, 1);
1053static SENSOR_DEVICE_ATTR_2(in1_max, S_IRUGO | S_IWUSR, show_voltage,
1054 set_voltage, MAX, 1);
1055static SENSOR_DEVICE_ATTR_2(in1_min, S_IRUGO | S_IWUSR, show_voltage,
1056 set_voltage, MIN, 1);
1057static SENSOR_DEVICE_ATTR_2(in1_alarm, S_IRUGO, show_voltage, NULL, ALARM, 1);
1058static SENSOR_DEVICE_ATTR_2(in2_input, S_IRUGO, show_voltage, NULL, INPUT, 2);
1059static SENSOR_DEVICE_ATTR_2(in2_max, S_IRUGO | S_IWUSR, show_voltage,
1060 set_voltage, MAX, 2);
1061static SENSOR_DEVICE_ATTR_2(in2_min, S_IRUGO | S_IWUSR, show_voltage,
1062 set_voltage, MIN, 2);
1063static SENSOR_DEVICE_ATTR_2(in2_alarm, S_IRUGO, show_voltage, NULL, ALARM, 2);
1064static SENSOR_DEVICE_ATTR_2(in3_input, S_IRUGO, show_voltage, NULL, INPUT, 3);
1065static SENSOR_DEVICE_ATTR_2(in3_max, S_IRUGO | S_IWUSR, show_voltage,
1066 set_voltage, MAX, 3);
1067static SENSOR_DEVICE_ATTR_2(in3_min, S_IRUGO | S_IWUSR, show_voltage,
1068 set_voltage, MIN, 3);
1069static SENSOR_DEVICE_ATTR_2(in3_alarm, S_IRUGO, show_voltage, NULL, ALARM, 3);
1070static SENSOR_DEVICE_ATTR_2(in4_input, S_IRUGO, show_voltage, NULL, INPUT, 4);
1071static SENSOR_DEVICE_ATTR_2(in4_max, S_IRUGO | S_IWUSR, show_voltage,
1072 set_voltage, MAX, 4);
1073static SENSOR_DEVICE_ATTR_2(in4_min, S_IRUGO | S_IWUSR, show_voltage,
1074 set_voltage, MIN, 4);
1075static SENSOR_DEVICE_ATTR_2(in4_alarm, S_IRUGO, show_voltage, NULL, ALARM, 8);
1076static SENSOR_DEVICE_ATTR_2(in5_input, S_IRUGO, show_voltage, NULL, INPUT, 5);
1077static SENSOR_DEVICE_ATTR_2(in5_max, S_IRUGO | S_IWUSR, show_voltage,
1078 set_voltage, MAX, 5);
1079static SENSOR_DEVICE_ATTR_2(in5_min, S_IRUGO | S_IWUSR, show_voltage,
1080 set_voltage, MIN, 5);
1081static SENSOR_DEVICE_ATTR_2(in5_alarm, S_IRUGO, show_voltage, NULL, ALARM, 31);
1082static SENSOR_DEVICE_ATTR_2(temp1_input, S_IRUGO, show_temp, NULL, INPUT, 0);
1083static SENSOR_DEVICE_ATTR_2(temp1_alarm, S_IRUGO, show_temp, NULL, ALARM, 0);
1084static SENSOR_DEVICE_ATTR_2(temp1_fault, S_IRUGO, show_temp, NULL, FAULT, 0);
1085static SENSOR_DEVICE_ATTR_2(temp1_max, S_IRUGO | S_IWUSR, show_temp, set_temp,
1086 MAX, 0);
1087static SENSOR_DEVICE_ATTR_2(temp1_min, S_IRUGO | S_IWUSR, show_temp, set_temp,
1088 MIN, 0);
1089static SENSOR_DEVICE_ATTR_2(temp1_offset, S_IRUGO | S_IWUSR, show_temp,
1090 set_temp, OFFSET, 0);
1091static SENSOR_DEVICE_ATTR_2(temp1_auto_point1_temp, S_IRUGO | S_IWUSR,
1092 show_temp, set_temp, AUTOMIN, 0);
1093static SENSOR_DEVICE_ATTR_2(temp1_auto_point2_temp, S_IRUGO | S_IWUSR,
1094 show_point2, set_point2, 0, 0);
1095static SENSOR_DEVICE_ATTR_2(temp1_crit, S_IRUGO | S_IWUSR, show_temp, set_temp,
1096 THERM, 0);
1097static SENSOR_DEVICE_ATTR_2(temp1_crit_hyst, S_IRUGO | S_IWUSR, show_temp,
1098 set_temp, HYSTERSIS, 0);
1099static SENSOR_DEVICE_ATTR_2(temp1_smoothing, S_IRUGO | S_IWUSR, show_temp_st,
1100 set_temp_st, 0, 0);
1101static SENSOR_DEVICE_ATTR_2(temp2_input, S_IRUGO, show_temp, NULL, INPUT, 1);
1102static SENSOR_DEVICE_ATTR_2(temp2_alarm, S_IRUGO, show_temp, NULL, ALARM, 1);
1103static SENSOR_DEVICE_ATTR_2(temp2_max, S_IRUGO | S_IWUSR, show_temp, set_temp,
1104 MAX, 1);
1105static SENSOR_DEVICE_ATTR_2(temp2_min, S_IRUGO | S_IWUSR, show_temp, set_temp,
1106 MIN, 1);
1107static SENSOR_DEVICE_ATTR_2(temp2_offset, S_IRUGO | S_IWUSR, show_temp,
1108 set_temp, OFFSET, 1);
1109static SENSOR_DEVICE_ATTR_2(temp2_auto_point1_temp, S_IRUGO | S_IWUSR,
1110 show_temp, set_temp, AUTOMIN, 1);
1111static SENSOR_DEVICE_ATTR_2(temp2_auto_point2_temp, S_IRUGO | S_IWUSR,
1112 show_point2, set_point2, 0, 1);
1113static SENSOR_DEVICE_ATTR_2(temp2_crit, S_IRUGO | S_IWUSR, show_temp, set_temp,
1114 THERM, 1);
1115static SENSOR_DEVICE_ATTR_2(temp2_crit_hyst, S_IRUGO | S_IWUSR, show_temp,
1116 set_temp, HYSTERSIS, 1);
1117static SENSOR_DEVICE_ATTR_2(temp2_smoothing, S_IRUGO | S_IWUSR, show_temp_st,
1118 set_temp_st, 0, 1);
1119static SENSOR_DEVICE_ATTR_2(temp3_input, S_IRUGO, show_temp, NULL, INPUT, 2);
1120static SENSOR_DEVICE_ATTR_2(temp3_alarm, S_IRUGO, show_temp, NULL, ALARM, 2);
1121static SENSOR_DEVICE_ATTR_2(temp3_fault, S_IRUGO, show_temp, NULL, FAULT, 2);
1122static SENSOR_DEVICE_ATTR_2(temp3_max, S_IRUGO | S_IWUSR, show_temp, set_temp,
1123 MAX, 2);
1124static SENSOR_DEVICE_ATTR_2(temp3_min, S_IRUGO | S_IWUSR, show_temp, set_temp,
1125 MIN, 2);
1126static SENSOR_DEVICE_ATTR_2(temp3_offset, S_IRUGO | S_IWUSR, show_temp,
1127 set_temp, OFFSET, 2);
1128static SENSOR_DEVICE_ATTR_2(temp3_auto_point1_temp, S_IRUGO | S_IWUSR,
1129 show_temp, set_temp, AUTOMIN, 2);
1130static SENSOR_DEVICE_ATTR_2(temp3_auto_point2_temp, S_IRUGO | S_IWUSR,
1131 show_point2, set_point2, 0, 2);
1132static SENSOR_DEVICE_ATTR_2(temp3_crit, S_IRUGO | S_IWUSR, show_temp, set_temp,
1133 THERM, 2);
1134static SENSOR_DEVICE_ATTR_2(temp3_crit_hyst, S_IRUGO | S_IWUSR, show_temp,
1135 set_temp, HYSTERSIS, 2);
1136static SENSOR_DEVICE_ATTR_2(temp3_smoothing, S_IRUGO | S_IWUSR, show_temp_st,
1137 set_temp_st, 0, 2);
1138static SENSOR_DEVICE_ATTR_2(fan1_input, S_IRUGO, show_tach, NULL, INPUT, 0);
1139static SENSOR_DEVICE_ATTR_2(fan1_min, S_IRUGO | S_IWUSR, show_tach, set_tach,
1140 MIN, 0);
1141static SENSOR_DEVICE_ATTR_2(fan1_alarm, S_IRUGO, show_tach, NULL, ALARM, 0);
1142static SENSOR_DEVICE_ATTR_2(fan2_input, S_IRUGO, show_tach, NULL, INPUT, 1);
1143static SENSOR_DEVICE_ATTR_2(fan2_min, S_IRUGO | S_IWUSR, show_tach, set_tach,
1144 MIN, 1);
1145static SENSOR_DEVICE_ATTR_2(fan2_alarm, S_IRUGO, show_tach, NULL, ALARM, 1);
1146static SENSOR_DEVICE_ATTR_2(fan3_input, S_IRUGO, show_tach, NULL, INPUT, 2);
1147static SENSOR_DEVICE_ATTR_2(fan3_min, S_IRUGO | S_IWUSR, show_tach, set_tach,
1148 MIN, 2);
1149static SENSOR_DEVICE_ATTR_2(fan3_alarm, S_IRUGO, show_tach, NULL, ALARM, 2);
1150static SENSOR_DEVICE_ATTR_2(fan4_input, S_IRUGO, show_tach, NULL, INPUT, 3);
1151static SENSOR_DEVICE_ATTR_2(fan4_min, S_IRUGO | S_IWUSR, show_tach, set_tach,
1152 MIN, 3);
1153static SENSOR_DEVICE_ATTR_2(fan4_alarm, S_IRUGO, show_tach, NULL, ALARM, 3);
1154static SENSOR_DEVICE_ATTR_2(pwm1, S_IRUGO | S_IWUSR, show_pwm, set_pwm, INPUT,
1155 0);
1156static SENSOR_DEVICE_ATTR_2(pwm1_freq, S_IRUGO | S_IWUSR, show_pwmfreq,
1157 set_pwmfreq, INPUT, 0);
1158static SENSOR_DEVICE_ATTR_2(pwm1_enable, S_IRUGO | S_IWUSR, show_pwmctrl,
1159 set_pwmctrl, INPUT, 0);
1160static SENSOR_DEVICE_ATTR_2(pwm1_auto_channels_temp, S_IRUGO | S_IWUSR,
1161 show_pwmchan, set_pwmchan, INPUT, 0);
1162static SENSOR_DEVICE_ATTR_2(pwm1_auto_point1_pwm, S_IRUGO | S_IWUSR, show_pwm,
1163 set_pwm, MIN, 0);
1164static SENSOR_DEVICE_ATTR_2(pwm1_auto_point2_pwm, S_IRUGO | S_IWUSR, show_pwm,
1165 set_pwm, MAX, 0);
1166static SENSOR_DEVICE_ATTR_2(pwm1_stall_disable, S_IRUGO | S_IWUSR,
1167 show_stall_disable, set_stall_disable, 0, 0);
1168static SENSOR_DEVICE_ATTR_2(pwm2, S_IRUGO | S_IWUSR, show_pwm, set_pwm, INPUT,
1169 1);
1170static SENSOR_DEVICE_ATTR_2(pwm2_freq, S_IRUGO | S_IWUSR, show_pwmfreq,
1171 set_pwmfreq, INPUT, 1);
1172static SENSOR_DEVICE_ATTR_2(pwm2_enable, S_IRUGO | S_IWUSR, show_pwmctrl,
1173 set_pwmctrl, INPUT, 1);
1174static SENSOR_DEVICE_ATTR_2(pwm2_auto_channels_temp, S_IRUGO | S_IWUSR,
1175 show_pwmchan, set_pwmchan, INPUT, 1);
1176static SENSOR_DEVICE_ATTR_2(pwm2_auto_point1_pwm, S_IRUGO | S_IWUSR, show_pwm,
1177 set_pwm, MIN, 1);
1178static SENSOR_DEVICE_ATTR_2(pwm2_auto_point2_pwm, S_IRUGO | S_IWUSR, show_pwm,
1179 set_pwm, MAX, 1);
1180static SENSOR_DEVICE_ATTR_2(pwm2_stall_disable, S_IRUGO | S_IWUSR,
1181 show_stall_disable, set_stall_disable, 0, 1);
1182static SENSOR_DEVICE_ATTR_2(pwm3, S_IRUGO | S_IWUSR, show_pwm, set_pwm, INPUT,
1183 2);
1184static SENSOR_DEVICE_ATTR_2(pwm3_freq, S_IRUGO | S_IWUSR, show_pwmfreq,
1185 set_pwmfreq, INPUT, 2);
1186static SENSOR_DEVICE_ATTR_2(pwm3_enable, S_IRUGO | S_IWUSR, show_pwmctrl,
1187 set_pwmctrl, INPUT, 2);
1188static SENSOR_DEVICE_ATTR_2(pwm3_auto_channels_temp, S_IRUGO | S_IWUSR,
1189 show_pwmchan, set_pwmchan, INPUT, 2);
1190static SENSOR_DEVICE_ATTR_2(pwm3_auto_point1_pwm, S_IRUGO | S_IWUSR, show_pwm,
1191 set_pwm, MIN, 2);
1192static SENSOR_DEVICE_ATTR_2(pwm3_auto_point2_pwm, S_IRUGO | S_IWUSR, show_pwm,
1193 set_pwm, MAX, 2);
1194static SENSOR_DEVICE_ATTR_2(pwm3_stall_disable, S_IRUGO | S_IWUSR,
1195 show_stall_disable, set_stall_disable, 0, 2);
1196
1197/* Non-standard name, might need revisiting */
1198static DEVICE_ATTR_RW(pwm_use_point2_pwm_at_crit);
1199
1200static DEVICE_ATTR_RW(vrm);
1201static DEVICE_ATTR_RO(cpu0_vid);
1202
1203static struct attribute *adt7475_attrs[] = {
1204 &sensor_dev_attr_in1_input.dev_attr.attr,
1205 &sensor_dev_attr_in1_max.dev_attr.attr,
1206 &sensor_dev_attr_in1_min.dev_attr.attr,
1207 &sensor_dev_attr_in1_alarm.dev_attr.attr,
1208 &sensor_dev_attr_in2_input.dev_attr.attr,
1209 &sensor_dev_attr_in2_max.dev_attr.attr,
1210 &sensor_dev_attr_in2_min.dev_attr.attr,
1211 &sensor_dev_attr_in2_alarm.dev_attr.attr,
1212 &sensor_dev_attr_temp1_input.dev_attr.attr,
1213 &sensor_dev_attr_temp1_alarm.dev_attr.attr,
1214 &sensor_dev_attr_temp1_fault.dev_attr.attr,
1215 &sensor_dev_attr_temp1_max.dev_attr.attr,
1216 &sensor_dev_attr_temp1_min.dev_attr.attr,
1217 &sensor_dev_attr_temp1_offset.dev_attr.attr,
1218 &sensor_dev_attr_temp1_auto_point1_temp.dev_attr.attr,
1219 &sensor_dev_attr_temp1_auto_point2_temp.dev_attr.attr,
1220 &sensor_dev_attr_temp1_crit.dev_attr.attr,
1221 &sensor_dev_attr_temp1_crit_hyst.dev_attr.attr,
1222 &sensor_dev_attr_temp1_smoothing.dev_attr.attr,
1223 &sensor_dev_attr_temp2_input.dev_attr.attr,
1224 &sensor_dev_attr_temp2_alarm.dev_attr.attr,
1225 &sensor_dev_attr_temp2_max.dev_attr.attr,
1226 &sensor_dev_attr_temp2_min.dev_attr.attr,
1227 &sensor_dev_attr_temp2_offset.dev_attr.attr,
1228 &sensor_dev_attr_temp2_auto_point1_temp.dev_attr.attr,
1229 &sensor_dev_attr_temp2_auto_point2_temp.dev_attr.attr,
1230 &sensor_dev_attr_temp2_crit.dev_attr.attr,
1231 &sensor_dev_attr_temp2_crit_hyst.dev_attr.attr,
1232 &sensor_dev_attr_temp2_smoothing.dev_attr.attr,
1233 &sensor_dev_attr_temp3_input.dev_attr.attr,
1234 &sensor_dev_attr_temp3_fault.dev_attr.attr,
1235 &sensor_dev_attr_temp3_alarm.dev_attr.attr,
1236 &sensor_dev_attr_temp3_max.dev_attr.attr,
1237 &sensor_dev_attr_temp3_min.dev_attr.attr,
1238 &sensor_dev_attr_temp3_offset.dev_attr.attr,
1239 &sensor_dev_attr_temp3_auto_point1_temp.dev_attr.attr,
1240 &sensor_dev_attr_temp3_auto_point2_temp.dev_attr.attr,
1241 &sensor_dev_attr_temp3_crit.dev_attr.attr,
1242 &sensor_dev_attr_temp3_crit_hyst.dev_attr.attr,
1243 &sensor_dev_attr_temp3_smoothing.dev_attr.attr,
1244 &sensor_dev_attr_fan1_input.dev_attr.attr,
1245 &sensor_dev_attr_fan1_min.dev_attr.attr,
1246 &sensor_dev_attr_fan1_alarm.dev_attr.attr,
1247 &sensor_dev_attr_fan2_input.dev_attr.attr,
1248 &sensor_dev_attr_fan2_min.dev_attr.attr,
1249 &sensor_dev_attr_fan2_alarm.dev_attr.attr,
1250 &sensor_dev_attr_fan3_input.dev_attr.attr,
1251 &sensor_dev_attr_fan3_min.dev_attr.attr,
1252 &sensor_dev_attr_fan3_alarm.dev_attr.attr,
1253 &sensor_dev_attr_pwm1.dev_attr.attr,
1254 &sensor_dev_attr_pwm1_freq.dev_attr.attr,
1255 &sensor_dev_attr_pwm1_enable.dev_attr.attr,
1256 &sensor_dev_attr_pwm1_auto_channels_temp.dev_attr.attr,
1257 &sensor_dev_attr_pwm1_auto_point1_pwm.dev_attr.attr,
1258 &sensor_dev_attr_pwm1_auto_point2_pwm.dev_attr.attr,
1259 &sensor_dev_attr_pwm1_stall_disable.dev_attr.attr,
1260 &sensor_dev_attr_pwm3.dev_attr.attr,
1261 &sensor_dev_attr_pwm3_freq.dev_attr.attr,
1262 &sensor_dev_attr_pwm3_enable.dev_attr.attr,
1263 &sensor_dev_attr_pwm3_auto_channels_temp.dev_attr.attr,
1264 &sensor_dev_attr_pwm3_auto_point1_pwm.dev_attr.attr,
1265 &sensor_dev_attr_pwm3_auto_point2_pwm.dev_attr.attr,
1266 &sensor_dev_attr_pwm3_stall_disable.dev_attr.attr,
1267 &dev_attr_pwm_use_point2_pwm_at_crit.attr,
1268 NULL,
1269};
1270
1271static struct attribute *fan4_attrs[] = {
1272 &sensor_dev_attr_fan4_input.dev_attr.attr,
1273 &sensor_dev_attr_fan4_min.dev_attr.attr,
1274 &sensor_dev_attr_fan4_alarm.dev_attr.attr,
1275 NULL
1276};
1277
1278static struct attribute *pwm2_attrs[] = {
1279 &sensor_dev_attr_pwm2.dev_attr.attr,
1280 &sensor_dev_attr_pwm2_freq.dev_attr.attr,
1281 &sensor_dev_attr_pwm2_enable.dev_attr.attr,
1282 &sensor_dev_attr_pwm2_auto_channels_temp.dev_attr.attr,
1283 &sensor_dev_attr_pwm2_auto_point1_pwm.dev_attr.attr,
1284 &sensor_dev_attr_pwm2_auto_point2_pwm.dev_attr.attr,
1285 &sensor_dev_attr_pwm2_stall_disable.dev_attr.attr,
1286 NULL
1287};
1288
1289static struct attribute *in0_attrs[] = {
1290 &sensor_dev_attr_in0_input.dev_attr.attr,
1291 &sensor_dev_attr_in0_max.dev_attr.attr,
1292 &sensor_dev_attr_in0_min.dev_attr.attr,
1293 &sensor_dev_attr_in0_alarm.dev_attr.attr,
1294 NULL
1295};
1296
1297static struct attribute *in3_attrs[] = {
1298 &sensor_dev_attr_in3_input.dev_attr.attr,
1299 &sensor_dev_attr_in3_max.dev_attr.attr,
1300 &sensor_dev_attr_in3_min.dev_attr.attr,
1301 &sensor_dev_attr_in3_alarm.dev_attr.attr,
1302 NULL
1303};
1304
1305static struct attribute *in4_attrs[] = {
1306 &sensor_dev_attr_in4_input.dev_attr.attr,
1307 &sensor_dev_attr_in4_max.dev_attr.attr,
1308 &sensor_dev_attr_in4_min.dev_attr.attr,
1309 &sensor_dev_attr_in4_alarm.dev_attr.attr,
1310 NULL
1311};
1312
1313static struct attribute *in5_attrs[] = {
1314 &sensor_dev_attr_in5_input.dev_attr.attr,
1315 &sensor_dev_attr_in5_max.dev_attr.attr,
1316 &sensor_dev_attr_in5_min.dev_attr.attr,
1317 &sensor_dev_attr_in5_alarm.dev_attr.attr,
1318 NULL
1319};
1320
1321static struct attribute *vid_attrs[] = {
1322 &dev_attr_cpu0_vid.attr,
1323 &dev_attr_vrm.attr,
1324 NULL
1325};
1326
1327static const struct attribute_group adt7475_attr_group = { .attrs = adt7475_attrs };
1328static const struct attribute_group fan4_attr_group = { .attrs = fan4_attrs };
1329static const struct attribute_group pwm2_attr_group = { .attrs = pwm2_attrs };
1330static const struct attribute_group in0_attr_group = { .attrs = in0_attrs };
1331static const struct attribute_group in3_attr_group = { .attrs = in3_attrs };
1332static const struct attribute_group in4_attr_group = { .attrs = in4_attrs };
1333static const struct attribute_group in5_attr_group = { .attrs = in5_attrs };
1334static const struct attribute_group vid_attr_group = { .attrs = vid_attrs };
1335
1336static int adt7475_detect(struct i2c_client *client,
1337 struct i2c_board_info *info)
1338{
1339 struct i2c_adapter *adapter = client->adapter;
1340 int vendid, devid, devid2;
1341 const char *name;
1342
1343 if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
1344 return -ENODEV;
1345
1346 vendid = adt7475_read(REG_VENDID);
1347 devid2 = adt7475_read(REG_DEVID2);
1348 if (vendid != 0x41 || /* Analog Devices */
1349 (devid2 & 0xf8) != 0x68)
1350 return -ENODEV;
1351
1352 devid = adt7475_read(REG_DEVID);
1353 if (devid == 0x73)
1354 name = "adt7473";
1355 else if (devid == 0x75 && client->addr == 0x2e)
1356 name = "adt7475";
1357 else if (devid == 0x76)
1358 name = "adt7476";
1359 else if ((devid2 & 0xfc) == 0x6c)
1360 name = "adt7490";
1361 else {
1362 dev_dbg(&adapter->dev,
1363 "Couldn't detect an ADT7473/75/76/90 part at "
1364 "0x%02x\n", (unsigned int)client->addr);
1365 return -ENODEV;
1366 }
1367
1368 strlcpy(info->type, name, I2C_NAME_SIZE);
1369
1370 return 0;
1371}
1372
1373static void adt7475_remove_files(struct i2c_client *client,
1374 struct adt7475_data *data)
1375{
1376 sysfs_remove_group(&client->dev.kobj, &adt7475_attr_group);
1377 if (data->has_fan4)
1378 sysfs_remove_group(&client->dev.kobj, &fan4_attr_group);
1379 if (data->has_pwm2)
1380 sysfs_remove_group(&client->dev.kobj, &pwm2_attr_group);
1381 if (data->has_voltage & (1 << 0))
1382 sysfs_remove_group(&client->dev.kobj, &in0_attr_group);
1383 if (data->has_voltage & (1 << 3))
1384 sysfs_remove_group(&client->dev.kobj, &in3_attr_group);
1385 if (data->has_voltage & (1 << 4))
1386 sysfs_remove_group(&client->dev.kobj, &in4_attr_group);
1387 if (data->has_voltage & (1 << 5))
1388 sysfs_remove_group(&client->dev.kobj, &in5_attr_group);
1389 if (data->has_vid)
1390 sysfs_remove_group(&client->dev.kobj, &vid_attr_group);
1391}
1392
1393static int adt7475_probe(struct i2c_client *client,
1394 const struct i2c_device_id *id)
1395{
1396 enum chips chip;
1397 static const char * const names[] = {
1398 [adt7473] = "ADT7473",
1399 [adt7475] = "ADT7475",
1400 [adt7476] = "ADT7476",
1401 [adt7490] = "ADT7490",
1402 };
1403
1404 struct adt7475_data *data;
1405 int i, ret = 0, revision;
1406 u8 config2, config3;
1407
1408 data = devm_kzalloc(&client->dev, sizeof(*data), GFP_KERNEL);
1409 if (data == NULL)
1410 return -ENOMEM;
1411
1412 mutex_init(&data->lock);
1413 i2c_set_clientdata(client, data);
1414
1415 if (client->dev.of_node)
1416 chip = (enum chips)of_device_get_match_data(&client->dev);
1417 else
1418 chip = id->driver_data;
1419
1420 /* Initialize device-specific values */
1421 switch (chip) {
1422 case adt7476:
1423 data->has_voltage = 0x0e; /* in1 to in3 */
1424 revision = adt7475_read(REG_DEVID2) & 0x07;
1425 break;
1426 case adt7490:
1427 data->has_voltage = 0x3e; /* in1 to in5 */
1428 revision = adt7475_read(REG_DEVID2) & 0x03;
1429 if (revision == 0x03)
1430 revision += adt7475_read(REG_DEVREV2);
1431 break;
1432 default:
1433 data->has_voltage = 0x06; /* in1, in2 */
1434 revision = adt7475_read(REG_DEVID2) & 0x07;
1435 }
1436
1437 config3 = adt7475_read(REG_CONFIG3);
1438 /* Pin PWM2 may alternatively be used for ALERT output */
1439 if (!(config3 & CONFIG3_SMBALERT))
1440 data->has_pwm2 = 1;
1441 /* Meaning of this bit is inverted for the ADT7473-1 */
1442 if (id->driver_data == adt7473 && revision >= 1)
1443 data->has_pwm2 = !data->has_pwm2;
1444
1445 data->config4 = adt7475_read(REG_CONFIG4);
1446 /* Pin TACH4 may alternatively be used for THERM */
1447 if ((data->config4 & CONFIG4_PINFUNC) == 0x0)
1448 data->has_fan4 = 1;
1449
1450 /*
1451 * THERM configuration is more complex on the ADT7476 and ADT7490,
1452 * because 2 different pins (TACH4 and +2.5 Vin) can be used for
1453 * this function
1454 */
1455 if (id->driver_data == adt7490) {
1456 if ((data->config4 & CONFIG4_PINFUNC) == 0x1 &&
1457 !(config3 & CONFIG3_THERM))
1458 data->has_fan4 = 1;
1459 }
1460 if (id->driver_data == adt7476 || id->driver_data == adt7490) {
1461 if (!(config3 & CONFIG3_THERM) ||
1462 (data->config4 & CONFIG4_PINFUNC) == 0x1)
1463 data->has_voltage |= (1 << 0); /* in0 */
1464 }
1465
1466 /*
1467 * On the ADT7476, the +12V input pin may instead be used as VID5,
1468 * and VID pins may alternatively be used as GPIO
1469 */
1470 if (id->driver_data == adt7476) {
1471 u8 vid = adt7475_read(REG_VID);
1472 if (!(vid & VID_VIDSEL))
1473 data->has_voltage |= (1 << 4); /* in4 */
1474
1475 data->has_vid = !(adt7475_read(REG_CONFIG5) & CONFIG5_VIDGPIO);
1476 }
1477
1478 /* Voltage attenuators can be bypassed, globally or individually */
1479 config2 = adt7475_read(REG_CONFIG2);
1480 if (config2 & CONFIG2_ATTN) {
1481 data->bypass_attn = (0x3 << 3) | 0x3;
1482 } else {
1483 data->bypass_attn = ((data->config4 & CONFIG4_ATTN_IN10) >> 4) |
1484 ((data->config4 & CONFIG4_ATTN_IN43) >> 3);
1485 }
1486 data->bypass_attn &= data->has_voltage;
1487
1488 /*
1489 * Call adt7475_read_pwm for all pwm's as this will reprogram any
1490 * pwm's which are disabled to manual mode with 0% duty cycle
1491 */
1492 for (i = 0; i < ADT7475_PWM_COUNT; i++)
1493 adt7475_read_pwm(client, i);
1494
1495 /* Start monitoring */
1496 switch (chip) {
1497 case adt7475:
1498 case adt7476:
1499 i2c_smbus_write_byte_data(client, REG_CONFIG1,
1500 adt7475_read(REG_CONFIG1) | 0x01);
1501 break;
1502 default:
1503 break;
1504 }
1505
1506 ret = sysfs_create_group(&client->dev.kobj, &adt7475_attr_group);
1507 if (ret)
1508 return ret;
1509
1510 /* Features that can be disabled individually */
1511 if (data->has_fan4) {
1512 ret = sysfs_create_group(&client->dev.kobj, &fan4_attr_group);
1513 if (ret)
1514 goto eremove;
1515 }
1516 if (data->has_pwm2) {
1517 ret = sysfs_create_group(&client->dev.kobj, &pwm2_attr_group);
1518 if (ret)
1519 goto eremove;
1520 }
1521 if (data->has_voltage & (1 << 0)) {
1522 ret = sysfs_create_group(&client->dev.kobj, &in0_attr_group);
1523 if (ret)
1524 goto eremove;
1525 }
1526 if (data->has_voltage & (1 << 3)) {
1527 ret = sysfs_create_group(&client->dev.kobj, &in3_attr_group);
1528 if (ret)
1529 goto eremove;
1530 }
1531 if (data->has_voltage & (1 << 4)) {
1532 ret = sysfs_create_group(&client->dev.kobj, &in4_attr_group);
1533 if (ret)
1534 goto eremove;
1535 }
1536 if (data->has_voltage & (1 << 5)) {
1537 ret = sysfs_create_group(&client->dev.kobj, &in5_attr_group);
1538 if (ret)
1539 goto eremove;
1540 }
1541 if (data->has_vid) {
1542 data->vrm = vid_which_vrm();
1543 ret = sysfs_create_group(&client->dev.kobj, &vid_attr_group);
1544 if (ret)
1545 goto eremove;
1546 }
1547
1548 data->hwmon_dev = hwmon_device_register(&client->dev);
1549 if (IS_ERR(data->hwmon_dev)) {
1550 ret = PTR_ERR(data->hwmon_dev);
1551 goto eremove;
1552 }
1553
1554 dev_info(&client->dev, "%s device, revision %d\n",
1555 names[id->driver_data], revision);
1556 if ((data->has_voltage & 0x11) || data->has_fan4 || data->has_pwm2)
1557 dev_info(&client->dev, "Optional features:%s%s%s%s%s\n",
1558 (data->has_voltage & (1 << 0)) ? " in0" : "",
1559 (data->has_voltage & (1 << 4)) ? " in4" : "",
1560 data->has_fan4 ? " fan4" : "",
1561 data->has_pwm2 ? " pwm2" : "",
1562 data->has_vid ? " vid" : "");
1563 if (data->bypass_attn)
1564 dev_info(&client->dev, "Bypassing attenuators on:%s%s%s%s\n",
1565 (data->bypass_attn & (1 << 0)) ? " in0" : "",
1566 (data->bypass_attn & (1 << 1)) ? " in1" : "",
1567 (data->bypass_attn & (1 << 3)) ? " in3" : "",
1568 (data->bypass_attn & (1 << 4)) ? " in4" : "");
1569
1570 return 0;
1571
1572eremove:
1573 adt7475_remove_files(client, data);
1574 return ret;
1575}
1576
1577static int adt7475_remove(struct i2c_client *client)
1578{
1579 struct adt7475_data *data = i2c_get_clientdata(client);
1580
1581 hwmon_device_unregister(data->hwmon_dev);
1582 adt7475_remove_files(client, data);
1583
1584 return 0;
1585}
1586
1587static struct i2c_driver adt7475_driver = {
1588 .class = I2C_CLASS_HWMON,
1589 .driver = {
1590 .name = "adt7475",
1591 .of_match_table = of_match_ptr(adt7475_of_match),
1592 },
1593 .probe = adt7475_probe,
1594 .remove = adt7475_remove,
1595 .id_table = adt7475_id,
1596 .detect = adt7475_detect,
1597 .address_list = normal_i2c,
1598};
1599
1600static void adt7475_read_hystersis(struct i2c_client *client)
1601{
1602 struct adt7475_data *data = i2c_get_clientdata(client);
1603
1604 data->temp[HYSTERSIS][0] = (u16) adt7475_read(REG_REMOTE1_HYSTERSIS);
1605 data->temp[HYSTERSIS][1] = data->temp[HYSTERSIS][0];
1606 data->temp[HYSTERSIS][2] = (u16) adt7475_read(REG_REMOTE2_HYSTERSIS);
1607}
1608
1609static void adt7475_read_pwm(struct i2c_client *client, int index)
1610{
1611 struct adt7475_data *data = i2c_get_clientdata(client);
1612 unsigned int v;
1613
1614 data->pwm[CONTROL][index] = adt7475_read(PWM_CONFIG_REG(index));
1615
1616 /*
1617 * Figure out the internal value for pwmctrl and pwmchan
1618 * based on the current settings
1619 */
1620 v = (data->pwm[CONTROL][index] >> 5) & 7;
1621
1622 if (v == 3)
1623 data->pwmctl[index] = 0;
1624 else if (v == 7)
1625 data->pwmctl[index] = 1;
1626 else if (v == 4) {
1627 /*
1628 * The fan is disabled - we don't want to
1629 * support that, so change to manual mode and
1630 * set the duty cycle to 0 instead
1631 */
1632 data->pwm[INPUT][index] = 0;
1633 data->pwm[CONTROL][index] &= ~0xE0;
1634 data->pwm[CONTROL][index] |= (7 << 5);
1635
1636 i2c_smbus_write_byte_data(client, PWM_CONFIG_REG(index),
1637 data->pwm[INPUT][index]);
1638
1639 i2c_smbus_write_byte_data(client, PWM_CONFIG_REG(index),
1640 data->pwm[CONTROL][index]);
1641
1642 data->pwmctl[index] = 1;
1643 } else {
1644 data->pwmctl[index] = 2;
1645
1646 switch (v) {
1647 case 0:
1648 data->pwmchan[index] = 1;
1649 break;
1650 case 1:
1651 data->pwmchan[index] = 2;
1652 break;
1653 case 2:
1654 data->pwmchan[index] = 4;
1655 break;
1656 case 5:
1657 data->pwmchan[index] = 6;
1658 break;
1659 case 6:
1660 data->pwmchan[index] = 7;
1661 break;
1662 }
1663 }
1664}
1665
1666static struct adt7475_data *adt7475_update_device(struct device *dev)
1667{
1668 struct i2c_client *client = to_i2c_client(dev);
1669 struct adt7475_data *data = i2c_get_clientdata(client);
1670 u16 ext;
1671 int i;
1672
1673 mutex_lock(&data->lock);
1674
1675 /* Measurement values update every 2 seconds */
1676 if (time_after(jiffies, data->measure_updated + HZ * 2) ||
1677 !data->valid) {
1678 data->alarms = adt7475_read(REG_STATUS2) << 8;
1679 data->alarms |= adt7475_read(REG_STATUS1);
1680
1681 ext = (adt7475_read(REG_EXTEND2) << 8) |
1682 adt7475_read(REG_EXTEND1);
1683 for (i = 0; i < ADT7475_VOLTAGE_COUNT; i++) {
1684 if (!(data->has_voltage & (1 << i)))
1685 continue;
1686 data->voltage[INPUT][i] =
1687 (adt7475_read(VOLTAGE_REG(i)) << 2) |
1688 ((ext >> (i * 2)) & 3);
1689 }
1690
1691 for (i = 0; i < ADT7475_TEMP_COUNT; i++)
1692 data->temp[INPUT][i] =
1693 (adt7475_read(TEMP_REG(i)) << 2) |
1694 ((ext >> ((i + 5) * 2)) & 3);
1695
1696 if (data->has_voltage & (1 << 5)) {
1697 data->alarms |= adt7475_read(REG_STATUS4) << 24;
1698 ext = adt7475_read(REG_EXTEND3);
1699 data->voltage[INPUT][5] = adt7475_read(REG_VTT) << 2 |
1700 ((ext >> 4) & 3);
1701 }
1702
1703 for (i = 0; i < ADT7475_TACH_COUNT; i++) {
1704 if (i == 3 && !data->has_fan4)
1705 continue;
1706 data->tach[INPUT][i] =
1707 adt7475_read_word(client, TACH_REG(i));
1708 }
1709
1710 /* Updated by hw when in auto mode */
1711 for (i = 0; i < ADT7475_PWM_COUNT; i++) {
1712 if (i == 1 && !data->has_pwm2)
1713 continue;
1714 data->pwm[INPUT][i] = adt7475_read(PWM_REG(i));
1715 }
1716
1717 if (data->has_vid)
1718 data->vid = adt7475_read(REG_VID) & 0x3f;
1719
1720 data->measure_updated = jiffies;
1721 }
1722
1723 /* Limits and settings, should never change update every 60 seconds */
1724 if (time_after(jiffies, data->limits_updated + HZ * 60) ||
1725 !data->valid) {
1726 data->config4 = adt7475_read(REG_CONFIG4);
1727 data->config5 = adt7475_read(REG_CONFIG5);
1728
1729 for (i = 0; i < ADT7475_VOLTAGE_COUNT; i++) {
1730 if (!(data->has_voltage & (1 << i)))
1731 continue;
1732 /* Adjust values so they match the input precision */
1733 data->voltage[MIN][i] =
1734 adt7475_read(VOLTAGE_MIN_REG(i)) << 2;
1735 data->voltage[MAX][i] =
1736 adt7475_read(VOLTAGE_MAX_REG(i)) << 2;
1737 }
1738
1739 if (data->has_voltage & (1 << 5)) {
1740 data->voltage[MIN][5] = adt7475_read(REG_VTT_MIN) << 2;
1741 data->voltage[MAX][5] = adt7475_read(REG_VTT_MAX) << 2;
1742 }
1743
1744 for (i = 0; i < ADT7475_TEMP_COUNT; i++) {
1745 /* Adjust values so they match the input precision */
1746 data->temp[MIN][i] =
1747 adt7475_read(TEMP_MIN_REG(i)) << 2;
1748 data->temp[MAX][i] =
1749 adt7475_read(TEMP_MAX_REG(i)) << 2;
1750 data->temp[AUTOMIN][i] =
1751 adt7475_read(TEMP_TMIN_REG(i)) << 2;
1752 data->temp[THERM][i] =
1753 adt7475_read(TEMP_THERM_REG(i)) << 2;
1754 data->temp[OFFSET][i] =
1755 adt7475_read(TEMP_OFFSET_REG(i));
1756 }
1757 adt7475_read_hystersis(client);
1758
1759 for (i = 0; i < ADT7475_TACH_COUNT; i++) {
1760 if (i == 3 && !data->has_fan4)
1761 continue;
1762 data->tach[MIN][i] =
1763 adt7475_read_word(client, TACH_MIN_REG(i));
1764 }
1765
1766 for (i = 0; i < ADT7475_PWM_COUNT; i++) {
1767 if (i == 1 && !data->has_pwm2)
1768 continue;
1769 data->pwm[MAX][i] = adt7475_read(PWM_MAX_REG(i));
1770 data->pwm[MIN][i] = adt7475_read(PWM_MIN_REG(i));
1771 /* Set the channel and control information */
1772 adt7475_read_pwm(client, i);
1773 }
1774
1775 data->range[0] = adt7475_read(TEMP_TRANGE_REG(0));
1776 data->range[1] = adt7475_read(TEMP_TRANGE_REG(1));
1777 data->range[2] = adt7475_read(TEMP_TRANGE_REG(2));
1778
1779 data->limits_updated = jiffies;
1780 data->valid = 1;
1781 }
1782
1783 mutex_unlock(&data->lock);
1784
1785 return data;
1786}
1787
1788module_i2c_driver(adt7475_driver);
1789
1790MODULE_AUTHOR("Advanced Micro Devices, Inc");
1791MODULE_DESCRIPTION("adt7475 driver");
1792MODULE_LICENSE("GPL");