1 | // SPDX-License-Identifier: GPL-2.0-only |
2 | /* |
3 | * adt7475 - Thermal sensor driver for the ADT7475 chip and derivatives |
4 | * Copyright (C) 2007-2008, Advanced Micro Devices, Inc. |
5 | * Copyright (C) 2008 Jordan Crouse <jordan@cosmicpenguin.net> |
6 | * Copyright (C) 2008 Hans de Goede <hdegoede@redhat.com> |
7 | * Copyright (C) 2009 Jean Delvare <jdelvare@suse.de> |
8 | * |
9 | * Derived from the lm83 driver by Jean Delvare |
10 | */ |
11 | |
12 | #include <linux/module.h> |
13 | #include <linux/init.h> |
14 | #include <linux/slab.h> |
15 | #include <linux/i2c.h> |
16 | #include <linux/hwmon.h> |
17 | #include <linux/hwmon-sysfs.h> |
18 | #include <linux/hwmon-vid.h> |
19 | #include <linux/err.h> |
20 | #include <linux/jiffies.h> |
21 | #include <linux/of.h> |
22 | #include <linux/util_macros.h> |
23 | |
24 | /* Indexes for the sysfs hooks */ |
25 | |
26 | #define INPUT 0 |
27 | #define MIN 1 |
28 | #define MAX 2 |
29 | #define CONTROL 3 |
30 | #define OFFSET 3 |
31 | #define AUTOMIN 4 |
32 | #define THERM 5 |
33 | #define HYSTERSIS 6 |
34 | |
35 | /* |
36 | * These are unique identifiers for the sysfs functions - unlike the |
37 | * numbers above, these are not also indexes into an array |
38 | */ |
39 | |
40 | #define ALARM 9 |
41 | #define FAULT 10 |
42 | |
43 | /* 7475 Common Registers */ |
44 | |
45 | #define REG_DEVREV2 0x12 /* ADT7490 only */ |
46 | #define REG_IMON 0x1D /* ADT7490 only */ |
47 | |
48 | #define REG_VTT 0x1E /* ADT7490 only */ |
49 | #define REG_EXTEND3 0x1F /* ADT7490 only */ |
50 | |
51 | #define REG_VOLTAGE_BASE 0x20 |
52 | #define REG_TEMP_BASE 0x25 |
53 | #define REG_TACH_BASE 0x28 |
54 | #define REG_PWM_BASE 0x30 |
55 | #define REG_PWM_MAX_BASE 0x38 |
56 | |
57 | #define REG_DEVID 0x3D |
58 | #define REG_VENDID 0x3E |
59 | #define REG_DEVID2 0x3F |
60 | |
61 | #define REG_CONFIG1 0x40 |
62 | |
63 | #define REG_STATUS1 0x41 |
64 | #define REG_STATUS2 0x42 |
65 | |
66 | #define REG_VID 0x43 /* ADT7476 only */ |
67 | |
68 | #define REG_VOLTAGE_MIN_BASE 0x44 |
69 | #define REG_VOLTAGE_MAX_BASE 0x45 |
70 | |
71 | #define REG_TEMP_MIN_BASE 0x4E |
72 | #define REG_TEMP_MAX_BASE 0x4F |
73 | |
74 | #define REG_TACH_MIN_BASE 0x54 |
75 | |
76 | #define REG_PWM_CONFIG_BASE 0x5C |
77 | |
78 | #define REG_TEMP_TRANGE_BASE 0x5F |
79 | |
80 | #define REG_ENHANCE_ACOUSTICS1 0x62 |
81 | #define REG_ENHANCE_ACOUSTICS2 0x63 |
82 | |
83 | #define REG_PWM_MIN_BASE 0x64 |
84 | |
85 | #define REG_TEMP_TMIN_BASE 0x67 |
86 | #define REG_TEMP_THERM_BASE 0x6A |
87 | |
88 | #define REG_REMOTE1_HYSTERSIS 0x6D |
89 | #define REG_REMOTE2_HYSTERSIS 0x6E |
90 | |
91 | #define REG_TEMP_OFFSET_BASE 0x70 |
92 | |
93 | #define REG_CONFIG2 0x73 |
94 | |
95 | #define REG_EXTEND1 0x76 |
96 | #define REG_EXTEND2 0x77 |
97 | |
98 | #define REG_CONFIG3 0x78 |
99 | #define REG_CONFIG5 0x7C |
100 | #define REG_CONFIG4 0x7D |
101 | |
102 | #define REG_STATUS4 0x81 /* ADT7490 only */ |
103 | |
104 | #define REG_VTT_MIN 0x84 /* ADT7490 only */ |
105 | #define REG_VTT_MAX 0x86 /* ADT7490 only */ |
106 | |
107 | #define REG_IMON_MIN 0x85 /* ADT7490 only */ |
108 | #define REG_IMON_MAX 0x87 /* ADT7490 only */ |
109 | |
110 | #define VID_VIDSEL 0x80 /* ADT7476 only */ |
111 | |
112 | #define CONFIG2_ATTN 0x20 |
113 | |
114 | #define CONFIG3_SMBALERT 0x01 |
115 | #define CONFIG3_THERM 0x02 |
116 | |
117 | #define CONFIG4_PINFUNC 0x03 |
118 | #define CONFIG4_THERM 0x01 |
119 | #define CONFIG4_SMBALERT 0x02 |
120 | #define CONFIG4_MAXDUTY 0x08 |
121 | #define CONFIG4_ATTN_IN10 0x30 |
122 | #define CONFIG4_ATTN_IN43 0xC0 |
123 | |
124 | #define CONFIG5_TWOSCOMP 0x01 |
125 | #define CONFIG5_TEMPOFFSET 0x02 |
126 | #define CONFIG5_VIDGPIO 0x10 /* ADT7476 only */ |
127 | |
128 | /* ADT7475 Settings */ |
129 | |
130 | #define ADT7475_VOLTAGE_COUNT 5 /* Not counting Vtt or Imon */ |
131 | #define ADT7475_TEMP_COUNT 3 |
132 | #define ADT7475_TACH_COUNT 4 |
133 | #define ADT7475_PWM_COUNT 3 |
134 | |
135 | /* Macro to read the registers */ |
136 | |
137 | #define adt7475_read(reg) i2c_smbus_read_byte_data(client, (reg)) |
138 | |
139 | /* Macros to easily index the registers */ |
140 | |
141 | #define TACH_REG(idx) (REG_TACH_BASE + ((idx) * 2)) |
142 | #define TACH_MIN_REG(idx) (REG_TACH_MIN_BASE + ((idx) * 2)) |
143 | |
144 | #define PWM_REG(idx) (REG_PWM_BASE + (idx)) |
145 | #define PWM_MAX_REG(idx) (REG_PWM_MAX_BASE + (idx)) |
146 | #define PWM_MIN_REG(idx) (REG_PWM_MIN_BASE + (idx)) |
147 | #define PWM_CONFIG_REG(idx) (REG_PWM_CONFIG_BASE + (idx)) |
148 | |
149 | #define VOLTAGE_REG(idx) (REG_VOLTAGE_BASE + (idx)) |
150 | #define VOLTAGE_MIN_REG(idx) (REG_VOLTAGE_MIN_BASE + ((idx) * 2)) |
151 | #define VOLTAGE_MAX_REG(idx) (REG_VOLTAGE_MAX_BASE + ((idx) * 2)) |
152 | |
153 | #define TEMP_REG(idx) (REG_TEMP_BASE + (idx)) |
154 | #define TEMP_MIN_REG(idx) (REG_TEMP_MIN_BASE + ((idx) * 2)) |
155 | #define TEMP_MAX_REG(idx) (REG_TEMP_MAX_BASE + ((idx) * 2)) |
156 | #define TEMP_TMIN_REG(idx) (REG_TEMP_TMIN_BASE + (idx)) |
157 | #define TEMP_THERM_REG(idx) (REG_TEMP_THERM_BASE + (idx)) |
158 | #define TEMP_OFFSET_REG(idx) (REG_TEMP_OFFSET_BASE + (idx)) |
159 | #define TEMP_TRANGE_REG(idx) (REG_TEMP_TRANGE_BASE + (idx)) |
160 | |
161 | static const unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END }; |
162 | |
163 | enum chips { adt7473, adt7475, adt7476, adt7490 }; |
164 | |
165 | static const struct i2c_device_id adt7475_id[] = { |
166 | { "adt7473" , adt7473 }, |
167 | { "adt7475" , adt7475 }, |
168 | { "adt7476" , adt7476 }, |
169 | { "adt7490" , adt7490 }, |
170 | { } |
171 | }; |
172 | MODULE_DEVICE_TABLE(i2c, adt7475_id); |
173 | |
174 | static const struct of_device_id __maybe_unused adt7475_of_match[] = { |
175 | { |
176 | .compatible = "adi,adt7473" , |
177 | .data = (void *)adt7473 |
178 | }, |
179 | { |
180 | .compatible = "adi,adt7475" , |
181 | .data = (void *)adt7475 |
182 | }, |
183 | { |
184 | .compatible = "adi,adt7476" , |
185 | .data = (void *)adt7476 |
186 | }, |
187 | { |
188 | .compatible = "adi,adt7490" , |
189 | .data = (void *)adt7490 |
190 | }, |
191 | { }, |
192 | }; |
193 | MODULE_DEVICE_TABLE(of, adt7475_of_match); |
194 | |
195 | struct adt7475_data { |
196 | struct i2c_client *client; |
197 | struct mutex lock; |
198 | |
199 | unsigned long measure_updated; |
200 | bool valid; |
201 | |
202 | u8 config2; |
203 | u8 config4; |
204 | u8 config5; |
205 | u8 has_voltage; |
206 | u8 bypass_attn; /* Bypass voltage attenuator */ |
207 | u8 has_pwm2:1; |
208 | u8 has_fan4:1; |
209 | u8 has_vid:1; |
210 | u32 alarms; |
211 | u16 voltage[3][7]; |
212 | u16 temp[7][3]; |
213 | u16 tach[2][4]; |
214 | u8 pwm[4][3]; |
215 | u8 range[3]; |
216 | u8 pwmctl[3]; |
217 | u8 pwmchan[3]; |
218 | u8 enh_acoustics[2]; |
219 | |
220 | u8 vid; |
221 | u8 vrm; |
222 | const struct attribute_group *groups[10]; |
223 | }; |
224 | |
225 | static struct i2c_driver adt7475_driver; |
226 | static struct adt7475_data *adt7475_update_device(struct device *dev); |
227 | static void adt7475_read_hystersis(struct i2c_client *client); |
228 | static void adt7475_read_pwm(struct i2c_client *client, int index); |
229 | |
230 | /* Given a temp value, convert it to register value */ |
231 | |
232 | static inline u16 temp2reg(struct adt7475_data *data, long val) |
233 | { |
234 | u16 ret; |
235 | |
236 | if (!(data->config5 & CONFIG5_TWOSCOMP)) { |
237 | val = clamp_val(val, -64000, 191000); |
238 | ret = (val + 64500) / 1000; |
239 | } else { |
240 | val = clamp_val(val, -128000, 127000); |
241 | if (val < -500) |
242 | ret = (256500 + val) / 1000; |
243 | else |
244 | ret = (val + 500) / 1000; |
245 | } |
246 | |
247 | return ret << 2; |
248 | } |
249 | |
250 | /* Given a register value, convert it to a real temp value */ |
251 | |
252 | static inline int reg2temp(struct adt7475_data *data, u16 reg) |
253 | { |
254 | if (data->config5 & CONFIG5_TWOSCOMP) { |
255 | if (reg >= 512) |
256 | return (reg - 1024) * 250; |
257 | else |
258 | return reg * 250; |
259 | } else |
260 | return (reg - 256) * 250; |
261 | } |
262 | |
263 | static inline int tach2rpm(u16 tach) |
264 | { |
265 | if (tach == 0 || tach == 0xFFFF) |
266 | return 0; |
267 | |
268 | return (90000 * 60) / tach; |
269 | } |
270 | |
271 | static inline u16 rpm2tach(unsigned long rpm) |
272 | { |
273 | if (rpm == 0) |
274 | return 0; |
275 | |
276 | return clamp_val((90000 * 60) / rpm, 1, 0xFFFF); |
277 | } |
278 | |
279 | /* Scaling factors for voltage inputs, taken from the ADT7490 datasheet */ |
280 | static const int adt7473_in_scaling[ADT7475_VOLTAGE_COUNT + 2][2] = { |
281 | { 45, 94 }, /* +2.5V */ |
282 | { 175, 525 }, /* Vccp */ |
283 | { 68, 71 }, /* Vcc */ |
284 | { 93, 47 }, /* +5V */ |
285 | { 120, 20 }, /* +12V */ |
286 | { 45, 45 }, /* Vtt */ |
287 | { 45, 45 }, /* Imon */ |
288 | }; |
289 | |
290 | static inline int reg2volt(int channel, u16 reg, u8 bypass_attn) |
291 | { |
292 | const int *r = adt7473_in_scaling[channel]; |
293 | |
294 | if (bypass_attn & (1 << channel)) |
295 | return DIV_ROUND_CLOSEST(reg * 2250, 1024); |
296 | return DIV_ROUND_CLOSEST(reg * (r[0] + r[1]) * 2250, r[1] * 1024); |
297 | } |
298 | |
299 | static inline u16 volt2reg(int channel, long volt, u8 bypass_attn) |
300 | { |
301 | const int *r = adt7473_in_scaling[channel]; |
302 | long reg; |
303 | |
304 | if (bypass_attn & (1 << channel)) |
305 | reg = DIV_ROUND_CLOSEST(volt * 1024, 2250); |
306 | else |
307 | reg = DIV_ROUND_CLOSEST(volt * r[1] * 1024, |
308 | (r[0] + r[1]) * 2250); |
309 | return clamp_val(reg, 0, 1023) & (0xff << 2); |
310 | } |
311 | |
312 | static int adt7475_read_word(struct i2c_client *client, int reg) |
313 | { |
314 | int val1, val2; |
315 | |
316 | val1 = i2c_smbus_read_byte_data(client, command: reg); |
317 | if (val1 < 0) |
318 | return val1; |
319 | val2 = i2c_smbus_read_byte_data(client, command: reg + 1); |
320 | if (val2 < 0) |
321 | return val2; |
322 | |
323 | return val1 | (val2 << 8); |
324 | } |
325 | |
326 | static void adt7475_write_word(struct i2c_client *client, int reg, u16 val) |
327 | { |
328 | i2c_smbus_write_byte_data(client, command: reg + 1, value: val >> 8); |
329 | i2c_smbus_write_byte_data(client, command: reg, value: val & 0xFF); |
330 | } |
331 | |
332 | static ssize_t voltage_show(struct device *dev, struct device_attribute *attr, |
333 | char *buf) |
334 | { |
335 | struct adt7475_data *data = adt7475_update_device(dev); |
336 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); |
337 | unsigned short val; |
338 | |
339 | if (IS_ERR(ptr: data)) |
340 | return PTR_ERR(ptr: data); |
341 | |
342 | switch (sattr->nr) { |
343 | case ALARM: |
344 | return sprintf(buf, fmt: "%d\n" , |
345 | (data->alarms >> sattr->index) & 1); |
346 | default: |
347 | val = data->voltage[sattr->nr][sattr->index]; |
348 | return sprintf(buf, fmt: "%d\n" , |
349 | reg2volt(channel: sattr->index, reg: val, bypass_attn: data->bypass_attn)); |
350 | } |
351 | } |
352 | |
353 | static ssize_t voltage_store(struct device *dev, |
354 | struct device_attribute *attr, const char *buf, |
355 | size_t count) |
356 | { |
357 | |
358 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); |
359 | struct adt7475_data *data = dev_get_drvdata(dev); |
360 | struct i2c_client *client = data->client; |
361 | unsigned char reg; |
362 | long val; |
363 | |
364 | if (kstrtol(s: buf, base: 10, res: &val)) |
365 | return -EINVAL; |
366 | |
367 | mutex_lock(&data->lock); |
368 | |
369 | data->voltage[sattr->nr][sattr->index] = |
370 | volt2reg(channel: sattr->index, volt: val, bypass_attn: data->bypass_attn); |
371 | |
372 | if (sattr->index < ADT7475_VOLTAGE_COUNT) { |
373 | if (sattr->nr == MIN) |
374 | reg = VOLTAGE_MIN_REG(sattr->index); |
375 | else |
376 | reg = VOLTAGE_MAX_REG(sattr->index); |
377 | } else if (sattr->index == 5) { |
378 | if (sattr->nr == MIN) |
379 | reg = REG_VTT_MIN; |
380 | else |
381 | reg = REG_VTT_MAX; |
382 | } else { |
383 | if (sattr->nr == MIN) |
384 | reg = REG_IMON_MIN; |
385 | else |
386 | reg = REG_IMON_MAX; |
387 | } |
388 | |
389 | i2c_smbus_write_byte_data(client, command: reg, |
390 | value: data->voltage[sattr->nr][sattr->index] >> 2); |
391 | mutex_unlock(lock: &data->lock); |
392 | |
393 | return count; |
394 | } |
395 | |
396 | static ssize_t temp_show(struct device *dev, struct device_attribute *attr, |
397 | char *buf) |
398 | { |
399 | struct adt7475_data *data = adt7475_update_device(dev); |
400 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); |
401 | int out; |
402 | |
403 | if (IS_ERR(ptr: data)) |
404 | return PTR_ERR(ptr: data); |
405 | |
406 | switch (sattr->nr) { |
407 | case HYSTERSIS: |
408 | mutex_lock(&data->lock); |
409 | out = data->temp[sattr->nr][sattr->index]; |
410 | if (sattr->index != 1) |
411 | out = (out >> 4) & 0xF; |
412 | else |
413 | out = (out & 0xF); |
414 | /* |
415 | * Show the value as an absolute number tied to |
416 | * THERM |
417 | */ |
418 | out = reg2temp(data, reg: data->temp[THERM][sattr->index]) - |
419 | out * 1000; |
420 | mutex_unlock(lock: &data->lock); |
421 | break; |
422 | |
423 | case OFFSET: |
424 | /* |
425 | * Offset is always 2's complement, regardless of the |
426 | * setting in CONFIG5 |
427 | */ |
428 | mutex_lock(&data->lock); |
429 | out = (s8)data->temp[sattr->nr][sattr->index]; |
430 | if (data->config5 & CONFIG5_TEMPOFFSET) |
431 | out *= 1000; |
432 | else |
433 | out *= 500; |
434 | mutex_unlock(lock: &data->lock); |
435 | break; |
436 | |
437 | case ALARM: |
438 | out = (data->alarms >> (sattr->index + 4)) & 1; |
439 | break; |
440 | |
441 | case FAULT: |
442 | /* Note - only for remote1 and remote2 */ |
443 | out = !!(data->alarms & (sattr->index ? 0x8000 : 0x4000)); |
444 | break; |
445 | |
446 | default: |
447 | /* All other temp values are in the configured format */ |
448 | out = reg2temp(data, reg: data->temp[sattr->nr][sattr->index]); |
449 | } |
450 | |
451 | return sprintf(buf, fmt: "%d\n" , out); |
452 | } |
453 | |
454 | static ssize_t temp_store(struct device *dev, struct device_attribute *attr, |
455 | const char *buf, size_t count) |
456 | { |
457 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); |
458 | struct adt7475_data *data = dev_get_drvdata(dev); |
459 | struct i2c_client *client = data->client; |
460 | unsigned char reg = 0; |
461 | u8 out; |
462 | int temp; |
463 | long val; |
464 | |
465 | if (kstrtol(s: buf, base: 10, res: &val)) |
466 | return -EINVAL; |
467 | |
468 | mutex_lock(&data->lock); |
469 | |
470 | /* We need the config register in all cases for temp <-> reg conv. */ |
471 | data->config5 = adt7475_read(REG_CONFIG5); |
472 | |
473 | switch (sattr->nr) { |
474 | case OFFSET: |
475 | if (data->config5 & CONFIG5_TEMPOFFSET) { |
476 | val = clamp_val(val, -63000, 127000); |
477 | out = data->temp[OFFSET][sattr->index] = val / 1000; |
478 | } else { |
479 | val = clamp_val(val, -63000, 64000); |
480 | out = data->temp[OFFSET][sattr->index] = val / 500; |
481 | } |
482 | break; |
483 | |
484 | case HYSTERSIS: |
485 | /* |
486 | * The value will be given as an absolute value, turn it |
487 | * into an offset based on THERM |
488 | */ |
489 | |
490 | /* Read fresh THERM and HYSTERSIS values from the chip */ |
491 | data->temp[THERM][sattr->index] = |
492 | adt7475_read(TEMP_THERM_REG(sattr->index)) << 2; |
493 | adt7475_read_hystersis(client); |
494 | |
495 | temp = reg2temp(data, reg: data->temp[THERM][sattr->index]); |
496 | val = clamp_val(val, temp - 15000, temp); |
497 | val = (temp - val) / 1000; |
498 | |
499 | if (sattr->index != 1) { |
500 | data->temp[HYSTERSIS][sattr->index] &= 0x0F; |
501 | data->temp[HYSTERSIS][sattr->index] |= (val & 0xF) << 4; |
502 | } else { |
503 | data->temp[HYSTERSIS][sattr->index] &= 0xF0; |
504 | data->temp[HYSTERSIS][sattr->index] |= (val & 0xF); |
505 | } |
506 | |
507 | out = data->temp[HYSTERSIS][sattr->index]; |
508 | break; |
509 | |
510 | default: |
511 | data->temp[sattr->nr][sattr->index] = temp2reg(data, val); |
512 | |
513 | /* |
514 | * We maintain an extra 2 digits of precision for simplicity |
515 | * - shift those back off before writing the value |
516 | */ |
517 | out = (u8) (data->temp[sattr->nr][sattr->index] >> 2); |
518 | } |
519 | |
520 | switch (sattr->nr) { |
521 | case MIN: |
522 | reg = TEMP_MIN_REG(sattr->index); |
523 | break; |
524 | case MAX: |
525 | reg = TEMP_MAX_REG(sattr->index); |
526 | break; |
527 | case OFFSET: |
528 | reg = TEMP_OFFSET_REG(sattr->index); |
529 | break; |
530 | case AUTOMIN: |
531 | reg = TEMP_TMIN_REG(sattr->index); |
532 | break; |
533 | case THERM: |
534 | reg = TEMP_THERM_REG(sattr->index); |
535 | break; |
536 | case HYSTERSIS: |
537 | if (sattr->index != 2) |
538 | reg = REG_REMOTE1_HYSTERSIS; |
539 | else |
540 | reg = REG_REMOTE2_HYSTERSIS; |
541 | |
542 | break; |
543 | } |
544 | |
545 | i2c_smbus_write_byte_data(client, command: reg, value: out); |
546 | |
547 | mutex_unlock(lock: &data->lock); |
548 | return count; |
549 | } |
550 | |
551 | /* Assuming CONFIG6[SLOW] is 0 */ |
552 | static const int ad7475_st_map[] = { |
553 | 37500, 18800, 12500, 7500, 4700, 3100, 1600, 800, |
554 | }; |
555 | |
556 | static ssize_t temp_st_show(struct device *dev, struct device_attribute *attr, |
557 | char *buf) |
558 | { |
559 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); |
560 | struct adt7475_data *data = dev_get_drvdata(dev); |
561 | long val; |
562 | |
563 | switch (sattr->index) { |
564 | case 0: |
565 | val = data->enh_acoustics[0] & 0xf; |
566 | break; |
567 | case 1: |
568 | val = data->enh_acoustics[1] & 0xf; |
569 | break; |
570 | case 2: |
571 | default: |
572 | val = (data->enh_acoustics[1] >> 4) & 0xf; |
573 | break; |
574 | } |
575 | |
576 | if (val & 0x8) |
577 | return sprintf(buf, fmt: "%d\n" , ad7475_st_map[val & 0x7]); |
578 | else |
579 | return sprintf(buf, fmt: "0\n" ); |
580 | } |
581 | |
582 | static ssize_t temp_st_store(struct device *dev, |
583 | struct device_attribute *attr, const char *buf, |
584 | size_t count) |
585 | { |
586 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); |
587 | struct adt7475_data *data = dev_get_drvdata(dev); |
588 | struct i2c_client *client = data->client; |
589 | unsigned char reg; |
590 | int shift, idx; |
591 | ulong val; |
592 | |
593 | if (kstrtoul(s: buf, base: 10, res: &val)) |
594 | return -EINVAL; |
595 | |
596 | switch (sattr->index) { |
597 | case 0: |
598 | reg = REG_ENHANCE_ACOUSTICS1; |
599 | shift = 0; |
600 | idx = 0; |
601 | break; |
602 | case 1: |
603 | reg = REG_ENHANCE_ACOUSTICS2; |
604 | shift = 0; |
605 | idx = 1; |
606 | break; |
607 | case 2: |
608 | default: |
609 | reg = REG_ENHANCE_ACOUSTICS2; |
610 | shift = 4; |
611 | idx = 1; |
612 | break; |
613 | } |
614 | |
615 | if (val > 0) { |
616 | val = find_closest_descending(val, ad7475_st_map, |
617 | ARRAY_SIZE(ad7475_st_map)); |
618 | val |= 0x8; |
619 | } |
620 | |
621 | mutex_lock(&data->lock); |
622 | |
623 | data->enh_acoustics[idx] &= ~(0xf << shift); |
624 | data->enh_acoustics[idx] |= (val << shift); |
625 | |
626 | i2c_smbus_write_byte_data(client, command: reg, value: data->enh_acoustics[idx]); |
627 | |
628 | mutex_unlock(lock: &data->lock); |
629 | |
630 | return count; |
631 | } |
632 | |
633 | /* |
634 | * Table of autorange values - the user will write the value in millidegrees, |
635 | * and we'll convert it |
636 | */ |
637 | static const int autorange_table[] = { |
638 | 2000, 2500, 3330, 4000, 5000, 6670, 8000, |
639 | 10000, 13330, 16000, 20000, 26670, 32000, 40000, |
640 | 53330, 80000 |
641 | }; |
642 | |
643 | static ssize_t point2_show(struct device *dev, struct device_attribute *attr, |
644 | char *buf) |
645 | { |
646 | struct adt7475_data *data = adt7475_update_device(dev); |
647 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); |
648 | int out, val; |
649 | |
650 | if (IS_ERR(ptr: data)) |
651 | return PTR_ERR(ptr: data); |
652 | |
653 | mutex_lock(&data->lock); |
654 | out = (data->range[sattr->index] >> 4) & 0x0F; |
655 | val = reg2temp(data, reg: data->temp[AUTOMIN][sattr->index]); |
656 | mutex_unlock(lock: &data->lock); |
657 | |
658 | return sprintf(buf, fmt: "%d\n" , val + autorange_table[out]); |
659 | } |
660 | |
661 | static ssize_t point2_store(struct device *dev, struct device_attribute *attr, |
662 | const char *buf, size_t count) |
663 | { |
664 | struct adt7475_data *data = dev_get_drvdata(dev); |
665 | struct i2c_client *client = data->client; |
666 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); |
667 | int temp; |
668 | long val; |
669 | |
670 | if (kstrtol(s: buf, base: 10, res: &val)) |
671 | return -EINVAL; |
672 | |
673 | mutex_lock(&data->lock); |
674 | |
675 | /* Get a fresh copy of the needed registers */ |
676 | data->config5 = adt7475_read(REG_CONFIG5); |
677 | data->temp[AUTOMIN][sattr->index] = |
678 | adt7475_read(TEMP_TMIN_REG(sattr->index)) << 2; |
679 | data->range[sattr->index] = |
680 | adt7475_read(TEMP_TRANGE_REG(sattr->index)); |
681 | |
682 | /* |
683 | * The user will write an absolute value, so subtract the start point |
684 | * to figure the range |
685 | */ |
686 | temp = reg2temp(data, reg: data->temp[AUTOMIN][sattr->index]); |
687 | val = clamp_val(val, temp + autorange_table[0], |
688 | temp + autorange_table[ARRAY_SIZE(autorange_table) - 1]); |
689 | val -= temp; |
690 | |
691 | /* Find the nearest table entry to what the user wrote */ |
692 | val = find_closest(val, autorange_table, ARRAY_SIZE(autorange_table)); |
693 | |
694 | data->range[sattr->index] &= ~0xF0; |
695 | data->range[sattr->index] |= val << 4; |
696 | |
697 | i2c_smbus_write_byte_data(client, TEMP_TRANGE_REG(sattr->index), |
698 | value: data->range[sattr->index]); |
699 | |
700 | mutex_unlock(lock: &data->lock); |
701 | return count; |
702 | } |
703 | |
704 | static ssize_t tach_show(struct device *dev, struct device_attribute *attr, |
705 | char *buf) |
706 | { |
707 | struct adt7475_data *data = adt7475_update_device(dev); |
708 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); |
709 | int out; |
710 | |
711 | if (IS_ERR(ptr: data)) |
712 | return PTR_ERR(ptr: data); |
713 | |
714 | if (sattr->nr == ALARM) |
715 | out = (data->alarms >> (sattr->index + 10)) & 1; |
716 | else |
717 | out = tach2rpm(tach: data->tach[sattr->nr][sattr->index]); |
718 | |
719 | return sprintf(buf, fmt: "%d\n" , out); |
720 | } |
721 | |
722 | static ssize_t tach_store(struct device *dev, struct device_attribute *attr, |
723 | const char *buf, size_t count) |
724 | { |
725 | |
726 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); |
727 | struct adt7475_data *data = dev_get_drvdata(dev); |
728 | struct i2c_client *client = data->client; |
729 | unsigned long val; |
730 | |
731 | if (kstrtoul(s: buf, base: 10, res: &val)) |
732 | return -EINVAL; |
733 | |
734 | mutex_lock(&data->lock); |
735 | |
736 | data->tach[MIN][sattr->index] = rpm2tach(rpm: val); |
737 | |
738 | adt7475_write_word(client, TACH_MIN_REG(sattr->index), |
739 | val: data->tach[MIN][sattr->index]); |
740 | |
741 | mutex_unlock(lock: &data->lock); |
742 | return count; |
743 | } |
744 | |
745 | static ssize_t pwm_show(struct device *dev, struct device_attribute *attr, |
746 | char *buf) |
747 | { |
748 | struct adt7475_data *data = adt7475_update_device(dev); |
749 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); |
750 | |
751 | if (IS_ERR(ptr: data)) |
752 | return PTR_ERR(ptr: data); |
753 | |
754 | return sprintf(buf, fmt: "%d\n" , data->pwm[sattr->nr][sattr->index]); |
755 | } |
756 | |
757 | static ssize_t pwmchan_show(struct device *dev, struct device_attribute *attr, |
758 | char *buf) |
759 | { |
760 | struct adt7475_data *data = adt7475_update_device(dev); |
761 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); |
762 | |
763 | if (IS_ERR(ptr: data)) |
764 | return PTR_ERR(ptr: data); |
765 | |
766 | return sprintf(buf, fmt: "%d\n" , data->pwmchan[sattr->index]); |
767 | } |
768 | |
769 | static ssize_t pwmctrl_show(struct device *dev, struct device_attribute *attr, |
770 | char *buf) |
771 | { |
772 | struct adt7475_data *data = adt7475_update_device(dev); |
773 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); |
774 | |
775 | if (IS_ERR(ptr: data)) |
776 | return PTR_ERR(ptr: data); |
777 | |
778 | return sprintf(buf, fmt: "%d\n" , data->pwmctl[sattr->index]); |
779 | } |
780 | |
781 | static ssize_t pwm_store(struct device *dev, struct device_attribute *attr, |
782 | const char *buf, size_t count) |
783 | { |
784 | |
785 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); |
786 | struct adt7475_data *data = dev_get_drvdata(dev); |
787 | struct i2c_client *client = data->client; |
788 | unsigned char reg = 0; |
789 | long val; |
790 | |
791 | if (kstrtol(s: buf, base: 10, res: &val)) |
792 | return -EINVAL; |
793 | |
794 | mutex_lock(&data->lock); |
795 | |
796 | switch (sattr->nr) { |
797 | case INPUT: |
798 | /* Get a fresh value for CONTROL */ |
799 | data->pwm[CONTROL][sattr->index] = |
800 | adt7475_read(PWM_CONFIG_REG(sattr->index)); |
801 | |
802 | /* |
803 | * If we are not in manual mode, then we shouldn't allow |
804 | * the user to set the pwm speed |
805 | */ |
806 | if (((data->pwm[CONTROL][sattr->index] >> 5) & 7) != 7) { |
807 | mutex_unlock(lock: &data->lock); |
808 | return count; |
809 | } |
810 | |
811 | reg = PWM_REG(sattr->index); |
812 | break; |
813 | |
814 | case MIN: |
815 | reg = PWM_MIN_REG(sattr->index); |
816 | break; |
817 | |
818 | case MAX: |
819 | reg = PWM_MAX_REG(sattr->index); |
820 | break; |
821 | } |
822 | |
823 | data->pwm[sattr->nr][sattr->index] = clamp_val(val, 0, 0xFF); |
824 | i2c_smbus_write_byte_data(client, command: reg, |
825 | value: data->pwm[sattr->nr][sattr->index]); |
826 | mutex_unlock(lock: &data->lock); |
827 | |
828 | return count; |
829 | } |
830 | |
831 | static ssize_t stall_disable_show(struct device *dev, |
832 | struct device_attribute *attr, char *buf) |
833 | { |
834 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); |
835 | struct adt7475_data *data = dev_get_drvdata(dev); |
836 | |
837 | u8 mask = BIT(5 + sattr->index); |
838 | |
839 | return sprintf(buf, fmt: "%d\n" , !!(data->enh_acoustics[0] & mask)); |
840 | } |
841 | |
842 | static ssize_t stall_disable_store(struct device *dev, |
843 | struct device_attribute *attr, |
844 | const char *buf, size_t count) |
845 | { |
846 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); |
847 | struct adt7475_data *data = dev_get_drvdata(dev); |
848 | struct i2c_client *client = data->client; |
849 | long val; |
850 | u8 mask = BIT(5 + sattr->index); |
851 | |
852 | if (kstrtol(s: buf, base: 10, res: &val)) |
853 | return -EINVAL; |
854 | |
855 | mutex_lock(&data->lock); |
856 | |
857 | data->enh_acoustics[0] &= ~mask; |
858 | if (val) |
859 | data->enh_acoustics[0] |= mask; |
860 | |
861 | i2c_smbus_write_byte_data(client, REG_ENHANCE_ACOUSTICS1, |
862 | value: data->enh_acoustics[0]); |
863 | |
864 | mutex_unlock(lock: &data->lock); |
865 | |
866 | return count; |
867 | } |
868 | |
869 | /* Called by set_pwmctrl and set_pwmchan */ |
870 | |
871 | static int hw_set_pwm(struct i2c_client *client, int index, |
872 | unsigned int pwmctl, unsigned int pwmchan) |
873 | { |
874 | struct adt7475_data *data = i2c_get_clientdata(client); |
875 | long val = 0; |
876 | |
877 | switch (pwmctl) { |
878 | case 0: |
879 | val = 0x03; /* Run at full speed */ |
880 | break; |
881 | case 1: |
882 | val = 0x07; /* Manual mode */ |
883 | break; |
884 | case 2: |
885 | switch (pwmchan) { |
886 | case 1: |
887 | /* Remote1 controls PWM */ |
888 | val = 0x00; |
889 | break; |
890 | case 2: |
891 | /* local controls PWM */ |
892 | val = 0x01; |
893 | break; |
894 | case 4: |
895 | /* remote2 controls PWM */ |
896 | val = 0x02; |
897 | break; |
898 | case 6: |
899 | /* local/remote2 control PWM */ |
900 | val = 0x05; |
901 | break; |
902 | case 7: |
903 | /* All three control PWM */ |
904 | val = 0x06; |
905 | break; |
906 | default: |
907 | return -EINVAL; |
908 | } |
909 | break; |
910 | default: |
911 | return -EINVAL; |
912 | } |
913 | |
914 | data->pwmctl[index] = pwmctl; |
915 | data->pwmchan[index] = pwmchan; |
916 | |
917 | data->pwm[CONTROL][index] &= ~0xE0; |
918 | data->pwm[CONTROL][index] |= (val & 7) << 5; |
919 | |
920 | i2c_smbus_write_byte_data(client, PWM_CONFIG_REG(index), |
921 | value: data->pwm[CONTROL][index]); |
922 | |
923 | return 0; |
924 | } |
925 | |
926 | static ssize_t pwmchan_store(struct device *dev, |
927 | struct device_attribute *attr, const char *buf, |
928 | size_t count) |
929 | { |
930 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); |
931 | struct adt7475_data *data = dev_get_drvdata(dev); |
932 | struct i2c_client *client = data->client; |
933 | int r; |
934 | long val; |
935 | |
936 | if (kstrtol(s: buf, base: 10, res: &val)) |
937 | return -EINVAL; |
938 | |
939 | mutex_lock(&data->lock); |
940 | /* Read Modify Write PWM values */ |
941 | adt7475_read_pwm(client, index: sattr->index); |
942 | r = hw_set_pwm(client, index: sattr->index, pwmctl: data->pwmctl[sattr->index], pwmchan: val); |
943 | if (r) |
944 | count = r; |
945 | mutex_unlock(lock: &data->lock); |
946 | |
947 | return count; |
948 | } |
949 | |
950 | static ssize_t pwmctrl_store(struct device *dev, |
951 | struct device_attribute *attr, const char *buf, |
952 | size_t count) |
953 | { |
954 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); |
955 | struct adt7475_data *data = dev_get_drvdata(dev); |
956 | struct i2c_client *client = data->client; |
957 | int r; |
958 | long val; |
959 | |
960 | if (kstrtol(s: buf, base: 10, res: &val)) |
961 | return -EINVAL; |
962 | |
963 | mutex_lock(&data->lock); |
964 | /* Read Modify Write PWM values */ |
965 | adt7475_read_pwm(client, index: sattr->index); |
966 | r = hw_set_pwm(client, index: sattr->index, pwmctl: val, pwmchan: data->pwmchan[sattr->index]); |
967 | if (r) |
968 | count = r; |
969 | mutex_unlock(lock: &data->lock); |
970 | |
971 | return count; |
972 | } |
973 | |
974 | /* List of frequencies for the PWM */ |
975 | static const int pwmfreq_table[] = { |
976 | 11, 14, 22, 29, 35, 44, 58, 88, 22500 |
977 | }; |
978 | |
979 | static ssize_t pwmfreq_show(struct device *dev, struct device_attribute *attr, |
980 | char *buf) |
981 | { |
982 | struct adt7475_data *data = adt7475_update_device(dev); |
983 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); |
984 | int idx; |
985 | |
986 | if (IS_ERR(ptr: data)) |
987 | return PTR_ERR(ptr: data); |
988 | idx = clamp_val(data->range[sattr->index] & 0xf, 0, |
989 | ARRAY_SIZE(pwmfreq_table) - 1); |
990 | |
991 | return sprintf(buf, fmt: "%d\n" , pwmfreq_table[idx]); |
992 | } |
993 | |
994 | static ssize_t pwmfreq_store(struct device *dev, |
995 | struct device_attribute *attr, const char *buf, |
996 | size_t count) |
997 | { |
998 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); |
999 | struct adt7475_data *data = dev_get_drvdata(dev); |
1000 | struct i2c_client *client = data->client; |
1001 | int out; |
1002 | long val; |
1003 | |
1004 | if (kstrtol(s: buf, base: 10, res: &val)) |
1005 | return -EINVAL; |
1006 | |
1007 | out = find_closest(val, pwmfreq_table, ARRAY_SIZE(pwmfreq_table)); |
1008 | |
1009 | mutex_lock(&data->lock); |
1010 | |
1011 | data->range[sattr->index] = |
1012 | adt7475_read(TEMP_TRANGE_REG(sattr->index)); |
1013 | data->range[sattr->index] &= ~0xf; |
1014 | data->range[sattr->index] |= out; |
1015 | |
1016 | i2c_smbus_write_byte_data(client, TEMP_TRANGE_REG(sattr->index), |
1017 | value: data->range[sattr->index]); |
1018 | |
1019 | mutex_unlock(lock: &data->lock); |
1020 | return count; |
1021 | } |
1022 | |
1023 | static ssize_t pwm_use_point2_pwm_at_crit_show(struct device *dev, |
1024 | struct device_attribute *devattr, |
1025 | char *buf) |
1026 | { |
1027 | struct adt7475_data *data = adt7475_update_device(dev); |
1028 | |
1029 | if (IS_ERR(ptr: data)) |
1030 | return PTR_ERR(ptr: data); |
1031 | |
1032 | return sprintf(buf, fmt: "%d\n" , !!(data->config4 & CONFIG4_MAXDUTY)); |
1033 | } |
1034 | |
1035 | static ssize_t pwm_use_point2_pwm_at_crit_store(struct device *dev, |
1036 | struct device_attribute *devattr, |
1037 | const char *buf, size_t count) |
1038 | { |
1039 | struct adt7475_data *data = dev_get_drvdata(dev); |
1040 | struct i2c_client *client = data->client; |
1041 | long val; |
1042 | |
1043 | if (kstrtol(s: buf, base: 10, res: &val)) |
1044 | return -EINVAL; |
1045 | if (val != 0 && val != 1) |
1046 | return -EINVAL; |
1047 | |
1048 | mutex_lock(&data->lock); |
1049 | data->config4 = i2c_smbus_read_byte_data(client, REG_CONFIG4); |
1050 | if (val) |
1051 | data->config4 |= CONFIG4_MAXDUTY; |
1052 | else |
1053 | data->config4 &= ~CONFIG4_MAXDUTY; |
1054 | i2c_smbus_write_byte_data(client, REG_CONFIG4, value: data->config4); |
1055 | mutex_unlock(lock: &data->lock); |
1056 | |
1057 | return count; |
1058 | } |
1059 | |
1060 | static ssize_t vrm_show(struct device *dev, struct device_attribute *devattr, |
1061 | char *buf) |
1062 | { |
1063 | struct adt7475_data *data = dev_get_drvdata(dev); |
1064 | return sprintf(buf, fmt: "%d\n" , (int)data->vrm); |
1065 | } |
1066 | |
1067 | static ssize_t vrm_store(struct device *dev, struct device_attribute *devattr, |
1068 | const char *buf, size_t count) |
1069 | { |
1070 | struct adt7475_data *data = dev_get_drvdata(dev); |
1071 | long val; |
1072 | |
1073 | if (kstrtol(s: buf, base: 10, res: &val)) |
1074 | return -EINVAL; |
1075 | if (val < 0 || val > 255) |
1076 | return -EINVAL; |
1077 | data->vrm = val; |
1078 | |
1079 | return count; |
1080 | } |
1081 | |
1082 | static ssize_t cpu0_vid_show(struct device *dev, |
1083 | struct device_attribute *devattr, char *buf) |
1084 | { |
1085 | struct adt7475_data *data = adt7475_update_device(dev); |
1086 | |
1087 | if (IS_ERR(ptr: data)) |
1088 | return PTR_ERR(ptr: data); |
1089 | |
1090 | return sprintf(buf, fmt: "%d\n" , vid_from_reg(val: data->vid, vrm: data->vrm)); |
1091 | } |
1092 | |
1093 | static SENSOR_DEVICE_ATTR_2_RO(in0_input, voltage, INPUT, 0); |
1094 | static SENSOR_DEVICE_ATTR_2_RW(in0_max, voltage, MAX, 0); |
1095 | static SENSOR_DEVICE_ATTR_2_RW(in0_min, voltage, MIN, 0); |
1096 | static SENSOR_DEVICE_ATTR_2_RO(in0_alarm, voltage, ALARM, 0); |
1097 | static SENSOR_DEVICE_ATTR_2_RO(in1_input, voltage, INPUT, 1); |
1098 | static SENSOR_DEVICE_ATTR_2_RW(in1_max, voltage, MAX, 1); |
1099 | static SENSOR_DEVICE_ATTR_2_RW(in1_min, voltage, MIN, 1); |
1100 | static SENSOR_DEVICE_ATTR_2_RO(in1_alarm, voltage, ALARM, 1); |
1101 | static SENSOR_DEVICE_ATTR_2_RO(in2_input, voltage, INPUT, 2); |
1102 | static SENSOR_DEVICE_ATTR_2_RW(in2_max, voltage, MAX, 2); |
1103 | static SENSOR_DEVICE_ATTR_2_RW(in2_min, voltage, MIN, 2); |
1104 | static SENSOR_DEVICE_ATTR_2_RO(in2_alarm, voltage, ALARM, 2); |
1105 | static SENSOR_DEVICE_ATTR_2_RO(in3_input, voltage, INPUT, 3); |
1106 | static SENSOR_DEVICE_ATTR_2_RW(in3_max, voltage, MAX, 3); |
1107 | static SENSOR_DEVICE_ATTR_2_RW(in3_min, voltage, MIN, 3); |
1108 | static SENSOR_DEVICE_ATTR_2_RO(in3_alarm, voltage, ALARM, 3); |
1109 | static SENSOR_DEVICE_ATTR_2_RO(in4_input, voltage, INPUT, 4); |
1110 | static SENSOR_DEVICE_ATTR_2_RW(in4_max, voltage, MAX, 4); |
1111 | static SENSOR_DEVICE_ATTR_2_RW(in4_min, voltage, MIN, 4); |
1112 | static SENSOR_DEVICE_ATTR_2_RO(in4_alarm, voltage, ALARM, 8); |
1113 | static SENSOR_DEVICE_ATTR_2_RO(in5_input, voltage, INPUT, 5); |
1114 | static SENSOR_DEVICE_ATTR_2_RW(in5_max, voltage, MAX, 5); |
1115 | static SENSOR_DEVICE_ATTR_2_RW(in5_min, voltage, MIN, 5); |
1116 | static SENSOR_DEVICE_ATTR_2_RO(in5_alarm, voltage, ALARM, 31); |
1117 | static SENSOR_DEVICE_ATTR_2_RO(in6_input, voltage, INPUT, 6); |
1118 | static SENSOR_DEVICE_ATTR_2_RW(in6_max, voltage, MAX, 6); |
1119 | static SENSOR_DEVICE_ATTR_2_RW(in6_min, voltage, MIN, 6); |
1120 | static SENSOR_DEVICE_ATTR_2_RO(in6_alarm, voltage, ALARM, 30); |
1121 | static SENSOR_DEVICE_ATTR_2_RO(temp1_input, temp, INPUT, 0); |
1122 | static SENSOR_DEVICE_ATTR_2_RO(temp1_alarm, temp, ALARM, 0); |
1123 | static SENSOR_DEVICE_ATTR_2_RO(temp1_fault, temp, FAULT, 0); |
1124 | static SENSOR_DEVICE_ATTR_2_RW(temp1_max, temp, MAX, 0); |
1125 | static SENSOR_DEVICE_ATTR_2_RW(temp1_min, temp, MIN, 0); |
1126 | static SENSOR_DEVICE_ATTR_2_RW(temp1_offset, temp, OFFSET, 0); |
1127 | static SENSOR_DEVICE_ATTR_2_RW(temp1_auto_point1_temp, temp, AUTOMIN, 0); |
1128 | static SENSOR_DEVICE_ATTR_2_RW(temp1_auto_point2_temp, point2, 0, 0); |
1129 | static SENSOR_DEVICE_ATTR_2_RW(temp1_crit, temp, THERM, 0); |
1130 | static SENSOR_DEVICE_ATTR_2_RW(temp1_crit_hyst, temp, HYSTERSIS, 0); |
1131 | static SENSOR_DEVICE_ATTR_2_RW(temp1_smoothing, temp_st, 0, 0); |
1132 | static SENSOR_DEVICE_ATTR_2_RO(temp2_input, temp, INPUT, 1); |
1133 | static SENSOR_DEVICE_ATTR_2_RO(temp2_alarm, temp, ALARM, 1); |
1134 | static SENSOR_DEVICE_ATTR_2_RW(temp2_max, temp, MAX, 1); |
1135 | static SENSOR_DEVICE_ATTR_2_RW(temp2_min, temp, MIN, 1); |
1136 | static SENSOR_DEVICE_ATTR_2_RW(temp2_offset, temp, OFFSET, 1); |
1137 | static SENSOR_DEVICE_ATTR_2_RW(temp2_auto_point1_temp, temp, AUTOMIN, 1); |
1138 | static SENSOR_DEVICE_ATTR_2_RW(temp2_auto_point2_temp, point2, 0, 1); |
1139 | static SENSOR_DEVICE_ATTR_2_RW(temp2_crit, temp, THERM, 1); |
1140 | static SENSOR_DEVICE_ATTR_2_RW(temp2_crit_hyst, temp, HYSTERSIS, 1); |
1141 | static SENSOR_DEVICE_ATTR_2_RW(temp2_smoothing, temp_st, 0, 1); |
1142 | static SENSOR_DEVICE_ATTR_2_RO(temp3_input, temp, INPUT, 2); |
1143 | static SENSOR_DEVICE_ATTR_2_RO(temp3_alarm, temp, ALARM, 2); |
1144 | static SENSOR_DEVICE_ATTR_2_RO(temp3_fault, temp, FAULT, 2); |
1145 | static SENSOR_DEVICE_ATTR_2_RW(temp3_max, temp, MAX, 2); |
1146 | static SENSOR_DEVICE_ATTR_2_RW(temp3_min, temp, MIN, 2); |
1147 | static SENSOR_DEVICE_ATTR_2_RW(temp3_offset, temp, OFFSET, 2); |
1148 | static SENSOR_DEVICE_ATTR_2_RW(temp3_auto_point1_temp, temp, AUTOMIN, 2); |
1149 | static SENSOR_DEVICE_ATTR_2_RW(temp3_auto_point2_temp, point2, 0, 2); |
1150 | static SENSOR_DEVICE_ATTR_2_RW(temp3_crit, temp, THERM, 2); |
1151 | static SENSOR_DEVICE_ATTR_2_RW(temp3_crit_hyst, temp, HYSTERSIS, 2); |
1152 | static SENSOR_DEVICE_ATTR_2_RW(temp3_smoothing, temp_st, 0, 2); |
1153 | static SENSOR_DEVICE_ATTR_2_RO(fan1_input, tach, INPUT, 0); |
1154 | static SENSOR_DEVICE_ATTR_2_RW(fan1_min, tach, MIN, 0); |
1155 | static SENSOR_DEVICE_ATTR_2_RO(fan1_alarm, tach, ALARM, 0); |
1156 | static SENSOR_DEVICE_ATTR_2_RO(fan2_input, tach, INPUT, 1); |
1157 | static SENSOR_DEVICE_ATTR_2_RW(fan2_min, tach, MIN, 1); |
1158 | static SENSOR_DEVICE_ATTR_2_RO(fan2_alarm, tach, ALARM, 1); |
1159 | static SENSOR_DEVICE_ATTR_2_RO(fan3_input, tach, INPUT, 2); |
1160 | static SENSOR_DEVICE_ATTR_2_RW(fan3_min, tach, MIN, 2); |
1161 | static SENSOR_DEVICE_ATTR_2_RO(fan3_alarm, tach, ALARM, 2); |
1162 | static SENSOR_DEVICE_ATTR_2_RO(fan4_input, tach, INPUT, 3); |
1163 | static SENSOR_DEVICE_ATTR_2_RW(fan4_min, tach, MIN, 3); |
1164 | static SENSOR_DEVICE_ATTR_2_RO(fan4_alarm, tach, ALARM, 3); |
1165 | static SENSOR_DEVICE_ATTR_2_RW(pwm1, pwm, INPUT, 0); |
1166 | static SENSOR_DEVICE_ATTR_2_RW(pwm1_freq, pwmfreq, INPUT, 0); |
1167 | static SENSOR_DEVICE_ATTR_2_RW(pwm1_enable, pwmctrl, INPUT, 0); |
1168 | static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_channels_temp, pwmchan, INPUT, 0); |
1169 | static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point1_pwm, pwm, MIN, 0); |
1170 | static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point2_pwm, pwm, MAX, 0); |
1171 | static SENSOR_DEVICE_ATTR_2_RW(pwm1_stall_disable, stall_disable, 0, 0); |
1172 | static SENSOR_DEVICE_ATTR_2_RW(pwm2, pwm, INPUT, 1); |
1173 | static SENSOR_DEVICE_ATTR_2_RW(pwm2_freq, pwmfreq, INPUT, 1); |
1174 | static SENSOR_DEVICE_ATTR_2_RW(pwm2_enable, pwmctrl, INPUT, 1); |
1175 | static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_channels_temp, pwmchan, INPUT, 1); |
1176 | static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point1_pwm, pwm, MIN, 1); |
1177 | static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point2_pwm, pwm, MAX, 1); |
1178 | static SENSOR_DEVICE_ATTR_2_RW(pwm2_stall_disable, stall_disable, 0, 1); |
1179 | static SENSOR_DEVICE_ATTR_2_RW(pwm3, pwm, INPUT, 2); |
1180 | static SENSOR_DEVICE_ATTR_2_RW(pwm3_freq, pwmfreq, INPUT, 2); |
1181 | static SENSOR_DEVICE_ATTR_2_RW(pwm3_enable, pwmctrl, INPUT, 2); |
1182 | static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_channels_temp, pwmchan, INPUT, 2); |
1183 | static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point1_pwm, pwm, MIN, 2); |
1184 | static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point2_pwm, pwm, MAX, 2); |
1185 | static SENSOR_DEVICE_ATTR_2_RW(pwm3_stall_disable, stall_disable, 0, 2); |
1186 | |
1187 | /* Non-standard name, might need revisiting */ |
1188 | static DEVICE_ATTR_RW(pwm_use_point2_pwm_at_crit); |
1189 | |
1190 | static DEVICE_ATTR_RW(vrm); |
1191 | static DEVICE_ATTR_RO(cpu0_vid); |
1192 | |
1193 | static struct attribute *adt7475_attrs[] = { |
1194 | &sensor_dev_attr_in1_input.dev_attr.attr, |
1195 | &sensor_dev_attr_in1_max.dev_attr.attr, |
1196 | &sensor_dev_attr_in1_min.dev_attr.attr, |
1197 | &sensor_dev_attr_in1_alarm.dev_attr.attr, |
1198 | &sensor_dev_attr_in2_input.dev_attr.attr, |
1199 | &sensor_dev_attr_in2_max.dev_attr.attr, |
1200 | &sensor_dev_attr_in2_min.dev_attr.attr, |
1201 | &sensor_dev_attr_in2_alarm.dev_attr.attr, |
1202 | &sensor_dev_attr_temp1_input.dev_attr.attr, |
1203 | &sensor_dev_attr_temp1_alarm.dev_attr.attr, |
1204 | &sensor_dev_attr_temp1_fault.dev_attr.attr, |
1205 | &sensor_dev_attr_temp1_max.dev_attr.attr, |
1206 | &sensor_dev_attr_temp1_min.dev_attr.attr, |
1207 | &sensor_dev_attr_temp1_offset.dev_attr.attr, |
1208 | &sensor_dev_attr_temp1_auto_point1_temp.dev_attr.attr, |
1209 | &sensor_dev_attr_temp1_auto_point2_temp.dev_attr.attr, |
1210 | &sensor_dev_attr_temp1_crit.dev_attr.attr, |
1211 | &sensor_dev_attr_temp1_crit_hyst.dev_attr.attr, |
1212 | &sensor_dev_attr_temp1_smoothing.dev_attr.attr, |
1213 | &sensor_dev_attr_temp2_input.dev_attr.attr, |
1214 | &sensor_dev_attr_temp2_alarm.dev_attr.attr, |
1215 | &sensor_dev_attr_temp2_max.dev_attr.attr, |
1216 | &sensor_dev_attr_temp2_min.dev_attr.attr, |
1217 | &sensor_dev_attr_temp2_offset.dev_attr.attr, |
1218 | &sensor_dev_attr_temp2_auto_point1_temp.dev_attr.attr, |
1219 | &sensor_dev_attr_temp2_auto_point2_temp.dev_attr.attr, |
1220 | &sensor_dev_attr_temp2_crit.dev_attr.attr, |
1221 | &sensor_dev_attr_temp2_crit_hyst.dev_attr.attr, |
1222 | &sensor_dev_attr_temp2_smoothing.dev_attr.attr, |
1223 | &sensor_dev_attr_temp3_input.dev_attr.attr, |
1224 | &sensor_dev_attr_temp3_fault.dev_attr.attr, |
1225 | &sensor_dev_attr_temp3_alarm.dev_attr.attr, |
1226 | &sensor_dev_attr_temp3_max.dev_attr.attr, |
1227 | &sensor_dev_attr_temp3_min.dev_attr.attr, |
1228 | &sensor_dev_attr_temp3_offset.dev_attr.attr, |
1229 | &sensor_dev_attr_temp3_auto_point1_temp.dev_attr.attr, |
1230 | &sensor_dev_attr_temp3_auto_point2_temp.dev_attr.attr, |
1231 | &sensor_dev_attr_temp3_crit.dev_attr.attr, |
1232 | &sensor_dev_attr_temp3_crit_hyst.dev_attr.attr, |
1233 | &sensor_dev_attr_temp3_smoothing.dev_attr.attr, |
1234 | &sensor_dev_attr_fan1_input.dev_attr.attr, |
1235 | &sensor_dev_attr_fan1_min.dev_attr.attr, |
1236 | &sensor_dev_attr_fan1_alarm.dev_attr.attr, |
1237 | &sensor_dev_attr_fan2_input.dev_attr.attr, |
1238 | &sensor_dev_attr_fan2_min.dev_attr.attr, |
1239 | &sensor_dev_attr_fan2_alarm.dev_attr.attr, |
1240 | &sensor_dev_attr_fan3_input.dev_attr.attr, |
1241 | &sensor_dev_attr_fan3_min.dev_attr.attr, |
1242 | &sensor_dev_attr_fan3_alarm.dev_attr.attr, |
1243 | &sensor_dev_attr_pwm1.dev_attr.attr, |
1244 | &sensor_dev_attr_pwm1_freq.dev_attr.attr, |
1245 | &sensor_dev_attr_pwm1_enable.dev_attr.attr, |
1246 | &sensor_dev_attr_pwm1_auto_channels_temp.dev_attr.attr, |
1247 | &sensor_dev_attr_pwm1_auto_point1_pwm.dev_attr.attr, |
1248 | &sensor_dev_attr_pwm1_auto_point2_pwm.dev_attr.attr, |
1249 | &sensor_dev_attr_pwm1_stall_disable.dev_attr.attr, |
1250 | &sensor_dev_attr_pwm3.dev_attr.attr, |
1251 | &sensor_dev_attr_pwm3_freq.dev_attr.attr, |
1252 | &sensor_dev_attr_pwm3_enable.dev_attr.attr, |
1253 | &sensor_dev_attr_pwm3_auto_channels_temp.dev_attr.attr, |
1254 | &sensor_dev_attr_pwm3_auto_point1_pwm.dev_attr.attr, |
1255 | &sensor_dev_attr_pwm3_auto_point2_pwm.dev_attr.attr, |
1256 | &sensor_dev_attr_pwm3_stall_disable.dev_attr.attr, |
1257 | &dev_attr_pwm_use_point2_pwm_at_crit.attr, |
1258 | NULL, |
1259 | }; |
1260 | |
1261 | static struct attribute *fan4_attrs[] = { |
1262 | &sensor_dev_attr_fan4_input.dev_attr.attr, |
1263 | &sensor_dev_attr_fan4_min.dev_attr.attr, |
1264 | &sensor_dev_attr_fan4_alarm.dev_attr.attr, |
1265 | NULL |
1266 | }; |
1267 | |
1268 | static struct attribute *pwm2_attrs[] = { |
1269 | &sensor_dev_attr_pwm2.dev_attr.attr, |
1270 | &sensor_dev_attr_pwm2_freq.dev_attr.attr, |
1271 | &sensor_dev_attr_pwm2_enable.dev_attr.attr, |
1272 | &sensor_dev_attr_pwm2_auto_channels_temp.dev_attr.attr, |
1273 | &sensor_dev_attr_pwm2_auto_point1_pwm.dev_attr.attr, |
1274 | &sensor_dev_attr_pwm2_auto_point2_pwm.dev_attr.attr, |
1275 | &sensor_dev_attr_pwm2_stall_disable.dev_attr.attr, |
1276 | NULL |
1277 | }; |
1278 | |
1279 | static struct attribute *in0_attrs[] = { |
1280 | &sensor_dev_attr_in0_input.dev_attr.attr, |
1281 | &sensor_dev_attr_in0_max.dev_attr.attr, |
1282 | &sensor_dev_attr_in0_min.dev_attr.attr, |
1283 | &sensor_dev_attr_in0_alarm.dev_attr.attr, |
1284 | NULL |
1285 | }; |
1286 | |
1287 | static struct attribute *in3_attrs[] = { |
1288 | &sensor_dev_attr_in3_input.dev_attr.attr, |
1289 | &sensor_dev_attr_in3_max.dev_attr.attr, |
1290 | &sensor_dev_attr_in3_min.dev_attr.attr, |
1291 | &sensor_dev_attr_in3_alarm.dev_attr.attr, |
1292 | NULL |
1293 | }; |
1294 | |
1295 | static struct attribute *in4_attrs[] = { |
1296 | &sensor_dev_attr_in4_input.dev_attr.attr, |
1297 | &sensor_dev_attr_in4_max.dev_attr.attr, |
1298 | &sensor_dev_attr_in4_min.dev_attr.attr, |
1299 | &sensor_dev_attr_in4_alarm.dev_attr.attr, |
1300 | NULL |
1301 | }; |
1302 | |
1303 | static struct attribute *in5_attrs[] = { |
1304 | &sensor_dev_attr_in5_input.dev_attr.attr, |
1305 | &sensor_dev_attr_in5_max.dev_attr.attr, |
1306 | &sensor_dev_attr_in5_min.dev_attr.attr, |
1307 | &sensor_dev_attr_in5_alarm.dev_attr.attr, |
1308 | NULL |
1309 | }; |
1310 | |
1311 | static struct attribute *in6_attrs[] = { |
1312 | &sensor_dev_attr_in6_input.dev_attr.attr, |
1313 | &sensor_dev_attr_in6_max.dev_attr.attr, |
1314 | &sensor_dev_attr_in6_min.dev_attr.attr, |
1315 | &sensor_dev_attr_in6_alarm.dev_attr.attr, |
1316 | NULL |
1317 | }; |
1318 | |
1319 | static struct attribute *vid_attrs[] = { |
1320 | &dev_attr_cpu0_vid.attr, |
1321 | &dev_attr_vrm.attr, |
1322 | NULL |
1323 | }; |
1324 | |
1325 | static const struct attribute_group adt7475_attr_group = { .attrs = adt7475_attrs }; |
1326 | static const struct attribute_group fan4_attr_group = { .attrs = fan4_attrs }; |
1327 | static const struct attribute_group pwm2_attr_group = { .attrs = pwm2_attrs }; |
1328 | static const struct attribute_group in0_attr_group = { .attrs = in0_attrs }; |
1329 | static const struct attribute_group in3_attr_group = { .attrs = in3_attrs }; |
1330 | static const struct attribute_group in4_attr_group = { .attrs = in4_attrs }; |
1331 | static const struct attribute_group in5_attr_group = { .attrs = in5_attrs }; |
1332 | static const struct attribute_group in6_attr_group = { .attrs = in6_attrs }; |
1333 | static const struct attribute_group vid_attr_group = { .attrs = vid_attrs }; |
1334 | |
1335 | static int adt7475_detect(struct i2c_client *client, |
1336 | struct i2c_board_info *info) |
1337 | { |
1338 | struct i2c_adapter *adapter = client->adapter; |
1339 | int vendid, devid, devid2; |
1340 | const char *name; |
1341 | |
1342 | if (!i2c_check_functionality(adap: adapter, I2C_FUNC_SMBUS_BYTE_DATA)) |
1343 | return -ENODEV; |
1344 | |
1345 | vendid = adt7475_read(REG_VENDID); |
1346 | devid2 = adt7475_read(REG_DEVID2); |
1347 | if (vendid != 0x41 || /* Analog Devices */ |
1348 | (devid2 & 0xf8) != 0x68) |
1349 | return -ENODEV; |
1350 | |
1351 | devid = adt7475_read(REG_DEVID); |
1352 | if (devid == 0x73) |
1353 | name = "adt7473" ; |
1354 | else if (devid == 0x75 && client->addr == 0x2e) |
1355 | name = "adt7475" ; |
1356 | else if (devid == 0x76) |
1357 | name = "adt7476" ; |
1358 | else if ((devid2 & 0xfc) == 0x6c) |
1359 | name = "adt7490" ; |
1360 | else { |
1361 | dev_dbg(&adapter->dev, |
1362 | "Couldn't detect an ADT7473/75/76/90 part at " |
1363 | "0x%02x\n" , (unsigned int)client->addr); |
1364 | return -ENODEV; |
1365 | } |
1366 | |
1367 | strscpy(info->type, name, I2C_NAME_SIZE); |
1368 | |
1369 | return 0; |
1370 | } |
1371 | |
1372 | static int adt7475_update_limits(struct i2c_client *client) |
1373 | { |
1374 | struct adt7475_data *data = i2c_get_clientdata(client); |
1375 | int i; |
1376 | int ret; |
1377 | |
1378 | ret = adt7475_read(REG_CONFIG4); |
1379 | if (ret < 0) |
1380 | return ret; |
1381 | data->config4 = ret; |
1382 | |
1383 | ret = adt7475_read(REG_CONFIG5); |
1384 | if (ret < 0) |
1385 | return ret; |
1386 | data->config5 = ret; |
1387 | |
1388 | for (i = 0; i < ADT7475_VOLTAGE_COUNT; i++) { |
1389 | if (!(data->has_voltage & (1 << i))) |
1390 | continue; |
1391 | /* Adjust values so they match the input precision */ |
1392 | ret = adt7475_read(VOLTAGE_MIN_REG(i)); |
1393 | if (ret < 0) |
1394 | return ret; |
1395 | data->voltage[MIN][i] = ret << 2; |
1396 | |
1397 | ret = adt7475_read(VOLTAGE_MAX_REG(i)); |
1398 | if (ret < 0) |
1399 | return ret; |
1400 | data->voltage[MAX][i] = ret << 2; |
1401 | } |
1402 | |
1403 | if (data->has_voltage & (1 << 5)) { |
1404 | ret = adt7475_read(REG_VTT_MIN); |
1405 | if (ret < 0) |
1406 | return ret; |
1407 | data->voltage[MIN][5] = ret << 2; |
1408 | |
1409 | ret = adt7475_read(REG_VTT_MAX); |
1410 | if (ret < 0) |
1411 | return ret; |
1412 | data->voltage[MAX][5] = ret << 2; |
1413 | } |
1414 | |
1415 | if (data->has_voltage & (1 << 6)) { |
1416 | ret = adt7475_read(REG_IMON_MIN); |
1417 | if (ret < 0) |
1418 | return ret; |
1419 | data->voltage[MIN][6] = ret << 2; |
1420 | |
1421 | ret = adt7475_read(REG_IMON_MAX); |
1422 | if (ret < 0) |
1423 | return ret; |
1424 | data->voltage[MAX][6] = ret << 2; |
1425 | } |
1426 | |
1427 | for (i = 0; i < ADT7475_TEMP_COUNT; i++) { |
1428 | /* Adjust values so they match the input precision */ |
1429 | ret = adt7475_read(TEMP_MIN_REG(i)); |
1430 | if (ret < 0) |
1431 | return ret; |
1432 | data->temp[MIN][i] = ret << 2; |
1433 | |
1434 | ret = adt7475_read(TEMP_MAX_REG(i)); |
1435 | if (ret < 0) |
1436 | return ret; |
1437 | data->temp[MAX][i] = ret << 2; |
1438 | |
1439 | ret = adt7475_read(TEMP_TMIN_REG(i)); |
1440 | if (ret < 0) |
1441 | return ret; |
1442 | data->temp[AUTOMIN][i] = ret << 2; |
1443 | |
1444 | ret = adt7475_read(TEMP_THERM_REG(i)); |
1445 | if (ret < 0) |
1446 | return ret; |
1447 | data->temp[THERM][i] = ret << 2; |
1448 | |
1449 | ret = adt7475_read(TEMP_OFFSET_REG(i)); |
1450 | if (ret < 0) |
1451 | return ret; |
1452 | data->temp[OFFSET][i] = ret; |
1453 | } |
1454 | adt7475_read_hystersis(client); |
1455 | |
1456 | for (i = 0; i < ADT7475_TACH_COUNT; i++) { |
1457 | if (i == 3 && !data->has_fan4) |
1458 | continue; |
1459 | ret = adt7475_read_word(client, TACH_MIN_REG(i)); |
1460 | if (ret < 0) |
1461 | return ret; |
1462 | data->tach[MIN][i] = ret; |
1463 | } |
1464 | |
1465 | for (i = 0; i < ADT7475_PWM_COUNT; i++) { |
1466 | if (i == 1 && !data->has_pwm2) |
1467 | continue; |
1468 | ret = adt7475_read(PWM_MAX_REG(i)); |
1469 | if (ret < 0) |
1470 | return ret; |
1471 | data->pwm[MAX][i] = ret; |
1472 | |
1473 | ret = adt7475_read(PWM_MIN_REG(i)); |
1474 | if (ret < 0) |
1475 | return ret; |
1476 | data->pwm[MIN][i] = ret; |
1477 | /* Set the channel and control information */ |
1478 | adt7475_read_pwm(client, index: i); |
1479 | } |
1480 | |
1481 | ret = adt7475_read(TEMP_TRANGE_REG(0)); |
1482 | if (ret < 0) |
1483 | return ret; |
1484 | data->range[0] = ret; |
1485 | |
1486 | ret = adt7475_read(TEMP_TRANGE_REG(1)); |
1487 | if (ret < 0) |
1488 | return ret; |
1489 | data->range[1] = ret; |
1490 | |
1491 | ret = adt7475_read(TEMP_TRANGE_REG(2)); |
1492 | if (ret < 0) |
1493 | return ret; |
1494 | data->range[2] = ret; |
1495 | |
1496 | return 0; |
1497 | } |
1498 | |
1499 | static int load_config3(const struct i2c_client *client, const char *propname) |
1500 | { |
1501 | const char *function; |
1502 | u8 config3; |
1503 | int ret; |
1504 | |
1505 | ret = device_property_read_string(dev: &client->dev, propname, val: &function); |
1506 | if (!ret) { |
1507 | ret = adt7475_read(REG_CONFIG3); |
1508 | if (ret < 0) |
1509 | return ret; |
1510 | |
1511 | config3 = ret & ~CONFIG3_SMBALERT; |
1512 | if (!strcmp("pwm2" , function)) |
1513 | ; |
1514 | else if (!strcmp("smbalert#" , function)) |
1515 | config3 |= CONFIG3_SMBALERT; |
1516 | else |
1517 | return -EINVAL; |
1518 | |
1519 | return i2c_smbus_write_byte_data(client, REG_CONFIG3, value: config3); |
1520 | } |
1521 | |
1522 | return 0; |
1523 | } |
1524 | |
1525 | static int load_config4(const struct i2c_client *client, const char *propname) |
1526 | { |
1527 | const char *function; |
1528 | u8 config4; |
1529 | int ret; |
1530 | |
1531 | ret = device_property_read_string(dev: &client->dev, propname, val: &function); |
1532 | if (!ret) { |
1533 | ret = adt7475_read(REG_CONFIG4); |
1534 | if (ret < 0) |
1535 | return ret; |
1536 | |
1537 | config4 = ret & ~CONFIG4_PINFUNC; |
1538 | |
1539 | if (!strcmp("tach4" , function)) |
1540 | ; |
1541 | else if (!strcmp("therm#" , function)) |
1542 | config4 |= CONFIG4_THERM; |
1543 | else if (!strcmp("smbalert#" , function)) |
1544 | config4 |= CONFIG4_SMBALERT; |
1545 | else if (!strcmp("gpio" , function)) |
1546 | config4 |= CONFIG4_PINFUNC; |
1547 | else |
1548 | return -EINVAL; |
1549 | |
1550 | return i2c_smbus_write_byte_data(client, REG_CONFIG4, value: config4); |
1551 | } |
1552 | |
1553 | return 0; |
1554 | } |
1555 | |
1556 | static int load_config(const struct i2c_client *client, enum chips chip) |
1557 | { |
1558 | int err; |
1559 | const char *prop1, *prop2; |
1560 | |
1561 | switch (chip) { |
1562 | case adt7473: |
1563 | case adt7475: |
1564 | prop1 = "adi,pin5-function" ; |
1565 | prop2 = "adi,pin9-function" ; |
1566 | break; |
1567 | case adt7476: |
1568 | case adt7490: |
1569 | prop1 = "adi,pin10-function" ; |
1570 | prop2 = "adi,pin14-function" ; |
1571 | break; |
1572 | } |
1573 | |
1574 | err = load_config3(client, propname: prop1); |
1575 | if (err) { |
1576 | dev_err(&client->dev, "failed to configure %s\n" , prop1); |
1577 | return err; |
1578 | } |
1579 | |
1580 | err = load_config4(client, propname: prop2); |
1581 | if (err) { |
1582 | dev_err(&client->dev, "failed to configure %s\n" , prop2); |
1583 | return err; |
1584 | } |
1585 | |
1586 | return 0; |
1587 | } |
1588 | |
1589 | static int set_property_bit(const struct i2c_client *client, char *property, |
1590 | u8 *config, u8 bit_index) |
1591 | { |
1592 | u32 prop_value = 0; |
1593 | int ret = device_property_read_u32(dev: &client->dev, propname: property, |
1594 | val: &prop_value); |
1595 | |
1596 | if (!ret) { |
1597 | if (prop_value) |
1598 | *config |= (1 << bit_index); |
1599 | else |
1600 | *config &= ~(1 << bit_index); |
1601 | } |
1602 | |
1603 | return ret; |
1604 | } |
1605 | |
1606 | static int load_attenuators(const struct i2c_client *client, enum chips chip, |
1607 | struct adt7475_data *data) |
1608 | { |
1609 | switch (chip) { |
1610 | case adt7476: |
1611 | case adt7490: |
1612 | set_property_bit(client, property: "adi,bypass-attenuator-in0" , |
1613 | config: &data->config4, bit_index: 4); |
1614 | set_property_bit(client, property: "adi,bypass-attenuator-in1" , |
1615 | config: &data->config4, bit_index: 5); |
1616 | set_property_bit(client, property: "adi,bypass-attenuator-in3" , |
1617 | config: &data->config4, bit_index: 6); |
1618 | set_property_bit(client, property: "adi,bypass-attenuator-in4" , |
1619 | config: &data->config4, bit_index: 7); |
1620 | |
1621 | return i2c_smbus_write_byte_data(client, REG_CONFIG4, |
1622 | value: data->config4); |
1623 | case adt7473: |
1624 | case adt7475: |
1625 | set_property_bit(client, property: "adi,bypass-attenuator-in1" , |
1626 | config: &data->config2, bit_index: 5); |
1627 | |
1628 | return i2c_smbus_write_byte_data(client, REG_CONFIG2, |
1629 | value: data->config2); |
1630 | } |
1631 | |
1632 | return 0; |
1633 | } |
1634 | |
1635 | static int adt7475_set_pwm_polarity(struct i2c_client *client) |
1636 | { |
1637 | u32 states[ADT7475_PWM_COUNT]; |
1638 | int ret, i; |
1639 | u8 val; |
1640 | |
1641 | ret = device_property_read_u32_array(dev: &client->dev, |
1642 | propname: "adi,pwm-active-state" , val: states, |
1643 | ARRAY_SIZE(states)); |
1644 | if (ret) |
1645 | return ret; |
1646 | |
1647 | for (i = 0; i < ADT7475_PWM_COUNT; i++) { |
1648 | ret = adt7475_read(PWM_CONFIG_REG(i)); |
1649 | if (ret < 0) |
1650 | return ret; |
1651 | val = ret; |
1652 | if (states[i]) |
1653 | val &= ~BIT(4); |
1654 | else |
1655 | val |= BIT(4); |
1656 | |
1657 | ret = i2c_smbus_write_byte_data(client, PWM_CONFIG_REG(i), value: val); |
1658 | if (ret) |
1659 | return ret; |
1660 | } |
1661 | |
1662 | return 0; |
1663 | } |
1664 | |
1665 | static int adt7475_probe(struct i2c_client *client) |
1666 | { |
1667 | enum chips chip; |
1668 | static const char * const names[] = { |
1669 | [adt7473] = "ADT7473" , |
1670 | [adt7475] = "ADT7475" , |
1671 | [adt7476] = "ADT7476" , |
1672 | [adt7490] = "ADT7490" , |
1673 | }; |
1674 | |
1675 | struct adt7475_data *data; |
1676 | struct device *hwmon_dev; |
1677 | int i, ret = 0, revision, group_num = 0; |
1678 | u8 config3; |
1679 | const struct i2c_device_id *id = i2c_match_id(id: adt7475_id, client); |
1680 | |
1681 | data = devm_kzalloc(dev: &client->dev, size: sizeof(*data), GFP_KERNEL); |
1682 | if (data == NULL) |
1683 | return -ENOMEM; |
1684 | |
1685 | mutex_init(&data->lock); |
1686 | data->client = client; |
1687 | i2c_set_clientdata(client, data); |
1688 | |
1689 | if (client->dev.of_node) |
1690 | chip = (uintptr_t)of_device_get_match_data(dev: &client->dev); |
1691 | else |
1692 | chip = id->driver_data; |
1693 | |
1694 | /* Initialize device-specific values */ |
1695 | switch (chip) { |
1696 | case adt7476: |
1697 | data->has_voltage = 0x0e; /* in1 to in3 */ |
1698 | revision = adt7475_read(REG_DEVID2) & 0x07; |
1699 | break; |
1700 | case adt7490: |
1701 | data->has_voltage = 0x7e; /* in1 to in6 */ |
1702 | revision = adt7475_read(REG_DEVID2) & 0x03; |
1703 | if (revision == 0x03) |
1704 | revision += adt7475_read(REG_DEVREV2); |
1705 | break; |
1706 | default: |
1707 | data->has_voltage = 0x06; /* in1, in2 */ |
1708 | revision = adt7475_read(REG_DEVID2) & 0x07; |
1709 | } |
1710 | |
1711 | ret = load_config(client, chip); |
1712 | if (ret) |
1713 | return ret; |
1714 | |
1715 | config3 = adt7475_read(REG_CONFIG3); |
1716 | /* Pin PWM2 may alternatively be used for ALERT output */ |
1717 | if (!(config3 & CONFIG3_SMBALERT)) |
1718 | data->has_pwm2 = 1; |
1719 | /* Meaning of this bit is inverted for the ADT7473-1 */ |
1720 | if (id->driver_data == adt7473 && revision >= 1) |
1721 | data->has_pwm2 = !data->has_pwm2; |
1722 | |
1723 | data->config4 = adt7475_read(REG_CONFIG4); |
1724 | /* Pin TACH4 may alternatively be used for THERM */ |
1725 | if ((data->config4 & CONFIG4_PINFUNC) == 0x0) |
1726 | data->has_fan4 = 1; |
1727 | |
1728 | /* |
1729 | * THERM configuration is more complex on the ADT7476 and ADT7490, |
1730 | * because 2 different pins (TACH4 and +2.5 Vin) can be used for |
1731 | * this function |
1732 | */ |
1733 | if (id->driver_data == adt7490) { |
1734 | if ((data->config4 & CONFIG4_PINFUNC) == 0x1 && |
1735 | !(config3 & CONFIG3_THERM)) |
1736 | data->has_fan4 = 1; |
1737 | } |
1738 | if (id->driver_data == adt7476 || id->driver_data == adt7490) { |
1739 | if (!(config3 & CONFIG3_THERM) || |
1740 | (data->config4 & CONFIG4_PINFUNC) == 0x1) |
1741 | data->has_voltage |= (1 << 0); /* in0 */ |
1742 | } |
1743 | |
1744 | /* |
1745 | * On the ADT7476, the +12V input pin may instead be used as VID5, |
1746 | * and VID pins may alternatively be used as GPIO |
1747 | */ |
1748 | if (id->driver_data == adt7476) { |
1749 | u8 vid = adt7475_read(REG_VID); |
1750 | if (!(vid & VID_VIDSEL)) |
1751 | data->has_voltage |= (1 << 4); /* in4 */ |
1752 | |
1753 | data->has_vid = !(adt7475_read(REG_CONFIG5) & CONFIG5_VIDGPIO); |
1754 | } |
1755 | |
1756 | /* Voltage attenuators can be bypassed, globally or individually */ |
1757 | data->config2 = adt7475_read(REG_CONFIG2); |
1758 | ret = load_attenuators(client, chip, data); |
1759 | if (ret) |
1760 | dev_warn(&client->dev, "Error configuring attenuator bypass\n" ); |
1761 | |
1762 | if (data->config2 & CONFIG2_ATTN) { |
1763 | data->bypass_attn = (0x3 << 3) | 0x3; |
1764 | } else { |
1765 | data->bypass_attn = ((data->config4 & CONFIG4_ATTN_IN10) >> 4) | |
1766 | ((data->config4 & CONFIG4_ATTN_IN43) >> 3); |
1767 | } |
1768 | data->bypass_attn &= data->has_voltage; |
1769 | |
1770 | /* |
1771 | * Call adt7475_read_pwm for all pwm's as this will reprogram any |
1772 | * pwm's which are disabled to manual mode with 0% duty cycle |
1773 | */ |
1774 | for (i = 0; i < ADT7475_PWM_COUNT; i++) |
1775 | adt7475_read_pwm(client, index: i); |
1776 | |
1777 | ret = adt7475_set_pwm_polarity(client); |
1778 | if (ret && ret != -EINVAL) |
1779 | dev_warn(&client->dev, "Error configuring pwm polarity\n" ); |
1780 | |
1781 | /* Start monitoring */ |
1782 | switch (chip) { |
1783 | case adt7475: |
1784 | case adt7476: |
1785 | i2c_smbus_write_byte_data(client, REG_CONFIG1, |
1786 | adt7475_read(REG_CONFIG1) | 0x01); |
1787 | break; |
1788 | default: |
1789 | break; |
1790 | } |
1791 | |
1792 | data->groups[group_num++] = &adt7475_attr_group; |
1793 | |
1794 | /* Features that can be disabled individually */ |
1795 | if (data->has_fan4) { |
1796 | data->groups[group_num++] = &fan4_attr_group; |
1797 | } |
1798 | if (data->has_pwm2) { |
1799 | data->groups[group_num++] = &pwm2_attr_group; |
1800 | } |
1801 | if (data->has_voltage & (1 << 0)) { |
1802 | data->groups[group_num++] = &in0_attr_group; |
1803 | } |
1804 | if (data->has_voltage & (1 << 3)) { |
1805 | data->groups[group_num++] = &in3_attr_group; |
1806 | } |
1807 | if (data->has_voltage & (1 << 4)) { |
1808 | data->groups[group_num++] = &in4_attr_group; |
1809 | } |
1810 | if (data->has_voltage & (1 << 5)) { |
1811 | data->groups[group_num++] = &in5_attr_group; |
1812 | } |
1813 | if (data->has_voltage & (1 << 6)) { |
1814 | data->groups[group_num++] = &in6_attr_group; |
1815 | } |
1816 | if (data->has_vid) { |
1817 | data->vrm = vid_which_vrm(); |
1818 | data->groups[group_num] = &vid_attr_group; |
1819 | } |
1820 | |
1821 | /* register device with all the acquired attributes */ |
1822 | hwmon_dev = devm_hwmon_device_register_with_groups(dev: &client->dev, |
1823 | name: client->name, drvdata: data, |
1824 | groups: data->groups); |
1825 | |
1826 | if (IS_ERR(ptr: hwmon_dev)) { |
1827 | ret = PTR_ERR(ptr: hwmon_dev); |
1828 | return ret; |
1829 | } |
1830 | |
1831 | dev_info(&client->dev, "%s device, revision %d\n" , |
1832 | names[id->driver_data], revision); |
1833 | if ((data->has_voltage & 0x11) || data->has_fan4 || data->has_pwm2) |
1834 | dev_info(&client->dev, "Optional features:%s%s%s%s%s\n" , |
1835 | (data->has_voltage & (1 << 0)) ? " in0" : "" , |
1836 | (data->has_voltage & (1 << 4)) ? " in4" : "" , |
1837 | data->has_fan4 ? " fan4" : "" , |
1838 | data->has_pwm2 ? " pwm2" : "" , |
1839 | data->has_vid ? " vid" : "" ); |
1840 | if (data->bypass_attn) |
1841 | dev_info(&client->dev, "Bypassing attenuators on:%s%s%s%s\n" , |
1842 | (data->bypass_attn & (1 << 0)) ? " in0" : "" , |
1843 | (data->bypass_attn & (1 << 1)) ? " in1" : "" , |
1844 | (data->bypass_attn & (1 << 3)) ? " in3" : "" , |
1845 | (data->bypass_attn & (1 << 4)) ? " in4" : "" ); |
1846 | |
1847 | /* Limits and settings, should never change update more than once */ |
1848 | ret = adt7475_update_limits(client); |
1849 | if (ret) |
1850 | return ret; |
1851 | |
1852 | return 0; |
1853 | } |
1854 | |
1855 | static struct i2c_driver adt7475_driver = { |
1856 | .class = I2C_CLASS_HWMON, |
1857 | .driver = { |
1858 | .name = "adt7475" , |
1859 | .of_match_table = of_match_ptr(adt7475_of_match), |
1860 | }, |
1861 | .probe = adt7475_probe, |
1862 | .id_table = adt7475_id, |
1863 | .detect = adt7475_detect, |
1864 | .address_list = normal_i2c, |
1865 | }; |
1866 | |
1867 | static void adt7475_read_hystersis(struct i2c_client *client) |
1868 | { |
1869 | struct adt7475_data *data = i2c_get_clientdata(client); |
1870 | |
1871 | data->temp[HYSTERSIS][0] = (u16) adt7475_read(REG_REMOTE1_HYSTERSIS); |
1872 | data->temp[HYSTERSIS][1] = data->temp[HYSTERSIS][0]; |
1873 | data->temp[HYSTERSIS][2] = (u16) adt7475_read(REG_REMOTE2_HYSTERSIS); |
1874 | } |
1875 | |
1876 | static void adt7475_read_pwm(struct i2c_client *client, int index) |
1877 | { |
1878 | struct adt7475_data *data = i2c_get_clientdata(client); |
1879 | unsigned int v; |
1880 | |
1881 | data->pwm[CONTROL][index] = adt7475_read(PWM_CONFIG_REG(index)); |
1882 | |
1883 | /* |
1884 | * Figure out the internal value for pwmctrl and pwmchan |
1885 | * based on the current settings |
1886 | */ |
1887 | v = (data->pwm[CONTROL][index] >> 5) & 7; |
1888 | |
1889 | if (v == 3) |
1890 | data->pwmctl[index] = 0; |
1891 | else if (v == 7) |
1892 | data->pwmctl[index] = 1; |
1893 | else if (v == 4) { |
1894 | /* |
1895 | * The fan is disabled - we don't want to |
1896 | * support that, so change to manual mode and |
1897 | * set the duty cycle to 0 instead |
1898 | */ |
1899 | data->pwm[INPUT][index] = 0; |
1900 | data->pwm[CONTROL][index] &= ~0xE0; |
1901 | data->pwm[CONTROL][index] |= (7 << 5); |
1902 | |
1903 | i2c_smbus_write_byte_data(client, PWM_CONFIG_REG(index), |
1904 | value: data->pwm[INPUT][index]); |
1905 | |
1906 | i2c_smbus_write_byte_data(client, PWM_CONFIG_REG(index), |
1907 | value: data->pwm[CONTROL][index]); |
1908 | |
1909 | data->pwmctl[index] = 1; |
1910 | } else { |
1911 | data->pwmctl[index] = 2; |
1912 | |
1913 | switch (v) { |
1914 | case 0: |
1915 | data->pwmchan[index] = 1; |
1916 | break; |
1917 | case 1: |
1918 | data->pwmchan[index] = 2; |
1919 | break; |
1920 | case 2: |
1921 | data->pwmchan[index] = 4; |
1922 | break; |
1923 | case 5: |
1924 | data->pwmchan[index] = 6; |
1925 | break; |
1926 | case 6: |
1927 | data->pwmchan[index] = 7; |
1928 | break; |
1929 | } |
1930 | } |
1931 | } |
1932 | |
1933 | static int adt7475_update_measure(struct device *dev) |
1934 | { |
1935 | struct adt7475_data *data = dev_get_drvdata(dev); |
1936 | struct i2c_client *client = data->client; |
1937 | u16 ext; |
1938 | int i; |
1939 | int ret; |
1940 | |
1941 | ret = adt7475_read(REG_STATUS2); |
1942 | if (ret < 0) |
1943 | return ret; |
1944 | data->alarms = ret << 8; |
1945 | |
1946 | ret = adt7475_read(REG_STATUS1); |
1947 | if (ret < 0) |
1948 | return ret; |
1949 | data->alarms |= ret; |
1950 | |
1951 | ret = adt7475_read(REG_EXTEND2); |
1952 | if (ret < 0) |
1953 | return ret; |
1954 | |
1955 | ext = (ret << 8); |
1956 | |
1957 | ret = adt7475_read(REG_EXTEND1); |
1958 | if (ret < 0) |
1959 | return ret; |
1960 | |
1961 | ext |= ret; |
1962 | |
1963 | for (i = 0; i < ADT7475_VOLTAGE_COUNT; i++) { |
1964 | if (!(data->has_voltage & (1 << i))) |
1965 | continue; |
1966 | ret = adt7475_read(VOLTAGE_REG(i)); |
1967 | if (ret < 0) |
1968 | return ret; |
1969 | data->voltage[INPUT][i] = |
1970 | (ret << 2) | |
1971 | ((ext >> (i * 2)) & 3); |
1972 | } |
1973 | |
1974 | for (i = 0; i < ADT7475_TEMP_COUNT; i++) { |
1975 | ret = adt7475_read(TEMP_REG(i)); |
1976 | if (ret < 0) |
1977 | return ret; |
1978 | data->temp[INPUT][i] = |
1979 | (ret << 2) | |
1980 | ((ext >> ((i + 5) * 2)) & 3); |
1981 | } |
1982 | |
1983 | if (data->has_voltage & (1 << 5)) { |
1984 | ret = adt7475_read(REG_STATUS4); |
1985 | if (ret < 0) |
1986 | return ret; |
1987 | data->alarms |= ret << 24; |
1988 | |
1989 | ret = adt7475_read(REG_EXTEND3); |
1990 | if (ret < 0) |
1991 | return ret; |
1992 | ext = ret; |
1993 | |
1994 | ret = adt7475_read(REG_VTT); |
1995 | if (ret < 0) |
1996 | return ret; |
1997 | data->voltage[INPUT][5] = ret << 2 | |
1998 | ((ext >> 4) & 3); |
1999 | } |
2000 | |
2001 | if (data->has_voltage & (1 << 6)) { |
2002 | ret = adt7475_read(REG_STATUS4); |
2003 | if (ret < 0) |
2004 | return ret; |
2005 | data->alarms |= ret << 24; |
2006 | |
2007 | ret = adt7475_read(REG_EXTEND3); |
2008 | if (ret < 0) |
2009 | return ret; |
2010 | ext = ret; |
2011 | |
2012 | ret = adt7475_read(REG_IMON); |
2013 | if (ret < 0) |
2014 | return ret; |
2015 | data->voltage[INPUT][6] = ret << 2 | |
2016 | ((ext >> 6) & 3); |
2017 | } |
2018 | |
2019 | for (i = 0; i < ADT7475_TACH_COUNT; i++) { |
2020 | if (i == 3 && !data->has_fan4) |
2021 | continue; |
2022 | ret = adt7475_read_word(client, TACH_REG(i)); |
2023 | if (ret < 0) |
2024 | return ret; |
2025 | data->tach[INPUT][i] = ret; |
2026 | } |
2027 | |
2028 | /* Updated by hw when in auto mode */ |
2029 | for (i = 0; i < ADT7475_PWM_COUNT; i++) { |
2030 | if (i == 1 && !data->has_pwm2) |
2031 | continue; |
2032 | ret = adt7475_read(PWM_REG(i)); |
2033 | if (ret < 0) |
2034 | return ret; |
2035 | data->pwm[INPUT][i] = ret; |
2036 | } |
2037 | |
2038 | if (data->has_vid) { |
2039 | ret = adt7475_read(REG_VID); |
2040 | if (ret < 0) |
2041 | return ret; |
2042 | data->vid = ret & 0x3f; |
2043 | } |
2044 | |
2045 | return 0; |
2046 | } |
2047 | |
2048 | static struct adt7475_data *adt7475_update_device(struct device *dev) |
2049 | { |
2050 | struct adt7475_data *data = dev_get_drvdata(dev); |
2051 | int ret; |
2052 | |
2053 | mutex_lock(&data->lock); |
2054 | |
2055 | /* Measurement values update every 2 seconds */ |
2056 | if (time_after(jiffies, data->measure_updated + HZ * 2) || |
2057 | !data->valid) { |
2058 | ret = adt7475_update_measure(dev); |
2059 | if (ret) { |
2060 | data->valid = false; |
2061 | mutex_unlock(lock: &data->lock); |
2062 | return ERR_PTR(error: ret); |
2063 | } |
2064 | data->measure_updated = jiffies; |
2065 | data->valid = true; |
2066 | } |
2067 | |
2068 | mutex_unlock(lock: &data->lock); |
2069 | |
2070 | return data; |
2071 | } |
2072 | |
2073 | module_i2c_driver(adt7475_driver); |
2074 | |
2075 | MODULE_AUTHOR("Advanced Micro Devices, Inc" ); |
2076 | MODULE_DESCRIPTION("adt7475 driver" ); |
2077 | MODULE_LICENSE("GPL" ); |
2078 | |