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