Commit | Line | Data |
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1c301fc5 JC |
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> | |
3d849981 JD |
6 | * Copyright (C) 2009 Jean Delvare <khali@linux-fr.org> |
7 | * | |
1c301fc5 JC |
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/init.h> | |
17 | #include <linux/slab.h> | |
18 | #include <linux/i2c.h> | |
19 | #include <linux/hwmon.h> | |
20 | #include <linux/hwmon-sysfs.h> | |
21 | #include <linux/err.h> | |
22 | ||
23 | /* Indexes for the sysfs hooks */ | |
24 | ||
25 | #define INPUT 0 | |
26 | #define MIN 1 | |
27 | #define MAX 2 | |
28 | #define CONTROL 3 | |
29 | #define OFFSET 3 | |
30 | #define AUTOMIN 4 | |
31 | #define THERM 5 | |
32 | #define HYSTERSIS 6 | |
33 | ||
34 | /* These are unique identifiers for the sysfs functions - unlike the | |
35 | numbers above, these are not also indexes into an array | |
36 | */ | |
37 | ||
38 | #define ALARM 9 | |
39 | #define FAULT 10 | |
40 | ||
41 | /* 7475 Common Registers */ | |
42 | ||
3d849981 JD |
43 | #define REG_VTT 0x1E /* ADT7490 only */ |
44 | #define REG_EXTEND3 0x1F /* ADT7490 only */ | |
45 | ||
cffb9dd0 | 46 | #define REG_VOLTAGE_BASE 0x20 |
1c301fc5 JC |
47 | #define REG_TEMP_BASE 0x25 |
48 | #define REG_TACH_BASE 0x28 | |
49 | #define REG_PWM_BASE 0x30 | |
50 | #define REG_PWM_MAX_BASE 0x38 | |
51 | ||
52 | #define REG_DEVID 0x3D | |
53 | #define REG_VENDID 0x3E | |
d656b6fd | 54 | #define REG_DEVID2 0x3F |
1c301fc5 JC |
55 | |
56 | #define REG_STATUS1 0x41 | |
57 | #define REG_STATUS2 0x42 | |
58 | ||
cffb9dd0 JD |
59 | #define REG_VOLTAGE_MIN_BASE 0x44 |
60 | #define REG_VOLTAGE_MAX_BASE 0x45 | |
1c301fc5 JC |
61 | |
62 | #define REG_TEMP_MIN_BASE 0x4E | |
63 | #define REG_TEMP_MAX_BASE 0x4F | |
64 | ||
65 | #define REG_TACH_MIN_BASE 0x54 | |
66 | ||
67 | #define REG_PWM_CONFIG_BASE 0x5C | |
68 | ||
69 | #define REG_TEMP_TRANGE_BASE 0x5F | |
70 | ||
71 | #define REG_PWM_MIN_BASE 0x64 | |
72 | ||
73 | #define REG_TEMP_TMIN_BASE 0x67 | |
74 | #define REG_TEMP_THERM_BASE 0x6A | |
75 | ||
76 | #define REG_REMOTE1_HYSTERSIS 0x6D | |
77 | #define REG_REMOTE2_HYSTERSIS 0x6E | |
78 | ||
79 | #define REG_TEMP_OFFSET_BASE 0x70 | |
80 | ||
81 | #define REG_EXTEND1 0x76 | |
82 | #define REG_EXTEND2 0x77 | |
83 | #define REG_CONFIG5 0x7C | |
f99318b2 JD |
84 | #define REG_CONFIG4 0x7D |
85 | ||
3d849981 JD |
86 | #define REG_STATUS4 0x81 /* ADT7490 only */ |
87 | ||
88 | #define REG_VTT_MIN 0x84 /* ADT7490 only */ | |
89 | #define REG_VTT_MAX 0x86 /* ADT7490 only */ | |
90 | ||
f99318b2 | 91 | #define CONFIG4_MAXDUTY 0x08 |
1c301fc5 JC |
92 | |
93 | #define CONFIG5_TWOSCOMP 0x01 | |
94 | #define CONFIG5_TEMPOFFSET 0x02 | |
95 | ||
96 | /* ADT7475 Settings */ | |
97 | ||
cffb9dd0 | 98 | #define ADT7475_VOLTAGE_COUNT 5 /* Not counting Vtt */ |
1c301fc5 JC |
99 | #define ADT7475_TEMP_COUNT 3 |
100 | #define ADT7475_TACH_COUNT 4 | |
101 | #define ADT7475_PWM_COUNT 3 | |
102 | ||
103 | /* Macro to read the registers */ | |
104 | ||
105 | #define adt7475_read(reg) i2c_smbus_read_byte_data(client, (reg)) | |
106 | ||
107 | /* Macros to easily index the registers */ | |
108 | ||
109 | #define TACH_REG(idx) (REG_TACH_BASE + ((idx) * 2)) | |
110 | #define TACH_MIN_REG(idx) (REG_TACH_MIN_BASE + ((idx) * 2)) | |
111 | ||
112 | #define PWM_REG(idx) (REG_PWM_BASE + (idx)) | |
113 | #define PWM_MAX_REG(idx) (REG_PWM_MAX_BASE + (idx)) | |
114 | #define PWM_MIN_REG(idx) (REG_PWM_MIN_BASE + (idx)) | |
115 | #define PWM_CONFIG_REG(idx) (REG_PWM_CONFIG_BASE + (idx)) | |
116 | ||
117 | #define VOLTAGE_REG(idx) (REG_VOLTAGE_BASE + (idx)) | |
118 | #define VOLTAGE_MIN_REG(idx) (REG_VOLTAGE_MIN_BASE + ((idx) * 2)) | |
119 | #define VOLTAGE_MAX_REG(idx) (REG_VOLTAGE_MAX_BASE + ((idx) * 2)) | |
120 | ||
121 | #define TEMP_REG(idx) (REG_TEMP_BASE + (idx)) | |
122 | #define TEMP_MIN_REG(idx) (REG_TEMP_MIN_BASE + ((idx) * 2)) | |
123 | #define TEMP_MAX_REG(idx) (REG_TEMP_MAX_BASE + ((idx) * 2)) | |
124 | #define TEMP_TMIN_REG(idx) (REG_TEMP_TMIN_BASE + (idx)) | |
125 | #define TEMP_THERM_REG(idx) (REG_TEMP_THERM_BASE + (idx)) | |
126 | #define TEMP_OFFSET_REG(idx) (REG_TEMP_OFFSET_BASE + (idx)) | |
127 | #define TEMP_TRANGE_REG(idx) (REG_TEMP_TRANGE_BASE + (idx)) | |
128 | ||
b180d050 | 129 | static unsigned short normal_i2c[] = { 0x2c, 0x2d, 0x2e, I2C_CLIENT_END }; |
1c301fc5 | 130 | |
3d849981 | 131 | I2C_CLIENT_INSMOD_3(adt7473, adt7475, adt7490); |
1c301fc5 JC |
132 | |
133 | static const struct i2c_device_id adt7475_id[] = { | |
b180d050 | 134 | { "adt7473", adt7473 }, |
1c301fc5 | 135 | { "adt7475", adt7475 }, |
3d849981 | 136 | { "adt7490", adt7490 }, |
1c301fc5 JC |
137 | { } |
138 | }; | |
139 | MODULE_DEVICE_TABLE(i2c, adt7475_id); | |
140 | ||
141 | struct adt7475_data { | |
142 | struct device *hwmon_dev; | |
143 | struct mutex lock; | |
144 | ||
145 | unsigned long measure_updated; | |
146 | unsigned long limits_updated; | |
147 | char valid; | |
148 | ||
f99318b2 | 149 | u8 config4; |
1c301fc5 | 150 | u8 config5; |
cffb9dd0 | 151 | u8 has_voltage; |
3d849981 | 152 | u32 alarms; |
cffb9dd0 | 153 | u16 voltage[3][6]; |
1c301fc5 JC |
154 | u16 temp[7][3]; |
155 | u16 tach[2][4]; | |
156 | u8 pwm[4][3]; | |
157 | u8 range[3]; | |
158 | u8 pwmctl[3]; | |
159 | u8 pwmchan[3]; | |
160 | }; | |
161 | ||
162 | static struct i2c_driver adt7475_driver; | |
163 | static struct adt7475_data *adt7475_update_device(struct device *dev); | |
164 | static void adt7475_read_hystersis(struct i2c_client *client); | |
165 | static void adt7475_read_pwm(struct i2c_client *client, int index); | |
166 | ||
167 | /* Given a temp value, convert it to register value */ | |
168 | ||
169 | static inline u16 temp2reg(struct adt7475_data *data, long val) | |
170 | { | |
171 | u16 ret; | |
172 | ||
173 | if (!(data->config5 & CONFIG5_TWOSCOMP)) { | |
174 | val = SENSORS_LIMIT(val, -64000, 191000); | |
175 | ret = (val + 64500) / 1000; | |
176 | } else { | |
177 | val = SENSORS_LIMIT(val, -128000, 127000); | |
178 | if (val < -500) | |
179 | ret = (256500 + val) / 1000; | |
180 | else | |
181 | ret = (val + 500) / 1000; | |
182 | } | |
183 | ||
184 | return ret << 2; | |
185 | } | |
186 | ||
187 | /* Given a register value, convert it to a real temp value */ | |
188 | ||
189 | static inline int reg2temp(struct adt7475_data *data, u16 reg) | |
190 | { | |
191 | if (data->config5 & CONFIG5_TWOSCOMP) { | |
192 | if (reg >= 512) | |
193 | return (reg - 1024) * 250; | |
194 | else | |
195 | return reg * 250; | |
196 | } else | |
197 | return (reg - 256) * 250; | |
198 | } | |
199 | ||
200 | static inline int tach2rpm(u16 tach) | |
201 | { | |
202 | if (tach == 0 || tach == 0xFFFF) | |
203 | return 0; | |
204 | ||
205 | return (90000 * 60) / tach; | |
206 | } | |
207 | ||
208 | static inline u16 rpm2tach(unsigned long rpm) | |
209 | { | |
210 | if (rpm == 0) | |
211 | return 0; | |
212 | ||
213 | return SENSORS_LIMIT((90000 * 60) / rpm, 1, 0xFFFF); | |
214 | } | |
215 | ||
cffb9dd0 JD |
216 | /* Scaling factors for voltage inputs, taken from the ADT7490 datasheet */ |
217 | static const int adt7473_in_scaling[ADT7475_VOLTAGE_COUNT + 1][2] = { | |
218 | { 45, 94 }, /* +2.5V */ | |
219 | { 175, 525 }, /* Vccp */ | |
220 | { 68, 71 }, /* Vcc */ | |
221 | { 93, 47 }, /* +5V */ | |
222 | { 120, 20 }, /* +12V */ | |
223 | { 45, 45 }, /* Vtt */ | |
224 | }; | |
1c301fc5 | 225 | |
cffb9dd0 | 226 | static inline int reg2volt(int channel, u16 reg) |
1c301fc5 | 227 | { |
cffb9dd0 | 228 | const int *r = adt7473_in_scaling[channel]; |
1c301fc5 | 229 | |
cffb9dd0 | 230 | return DIV_ROUND_CLOSEST(reg * (r[0] + r[1]) * 2250, r[1] * 1024); |
1c301fc5 JC |
231 | } |
232 | ||
cffb9dd0 | 233 | static inline u16 volt2reg(int channel, long volt) |
1c301fc5 | 234 | { |
cffb9dd0 JD |
235 | const int *r = adt7473_in_scaling[channel]; |
236 | long reg; | |
237 | ||
238 | reg = (volt * r[1] * 1024) / ((r[0] + r[1]) * 2250); | |
239 | return SENSORS_LIMIT(reg, 0, 1023) & (0xff << 2); | |
1c301fc5 JC |
240 | } |
241 | ||
242 | static u16 adt7475_read_word(struct i2c_client *client, int reg) | |
243 | { | |
244 | u16 val; | |
245 | ||
246 | val = i2c_smbus_read_byte_data(client, reg); | |
247 | val |= (i2c_smbus_read_byte_data(client, reg + 1) << 8); | |
248 | ||
249 | return val; | |
250 | } | |
251 | ||
252 | static void adt7475_write_word(struct i2c_client *client, int reg, u16 val) | |
253 | { | |
254 | i2c_smbus_write_byte_data(client, reg + 1, val >> 8); | |
255 | i2c_smbus_write_byte_data(client, reg, val & 0xFF); | |
256 | } | |
257 | ||
258 | /* Find the nearest value in a table - used for pwm frequency and | |
259 | auto temp range */ | |
260 | static int find_nearest(long val, const int *array, int size) | |
261 | { | |
262 | int i; | |
263 | ||
264 | if (val < array[0]) | |
265 | return 0; | |
266 | ||
267 | if (val > array[size - 1]) | |
268 | return size - 1; | |
269 | ||
270 | for (i = 0; i < size - 1; i++) { | |
271 | int a, b; | |
272 | ||
273 | if (val > array[i + 1]) | |
274 | continue; | |
275 | ||
276 | a = val - array[i]; | |
277 | b = array[i + 1] - val; | |
278 | ||
279 | return (a <= b) ? i : i + 1; | |
280 | } | |
281 | ||
282 | return 0; | |
283 | } | |
284 | ||
285 | static ssize_t show_voltage(struct device *dev, struct device_attribute *attr, | |
286 | char *buf) | |
287 | { | |
288 | struct adt7475_data *data = adt7475_update_device(dev); | |
289 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); | |
290 | unsigned short val; | |
291 | ||
292 | switch (sattr->nr) { | |
293 | case ALARM: | |
294 | return sprintf(buf, "%d\n", | |
cffb9dd0 | 295 | (data->alarms >> sattr->index) & 1); |
1c301fc5 JC |
296 | default: |
297 | val = data->voltage[sattr->nr][sattr->index]; | |
cffb9dd0 | 298 | return sprintf(buf, "%d\n", reg2volt(sattr->index, val)); |
1c301fc5 JC |
299 | } |
300 | } | |
301 | ||
302 | static ssize_t set_voltage(struct device *dev, struct device_attribute *attr, | |
303 | const char *buf, size_t count) | |
304 | { | |
305 | ||
306 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); | |
307 | struct i2c_client *client = to_i2c_client(dev); | |
308 | struct adt7475_data *data = i2c_get_clientdata(client); | |
309 | unsigned char reg; | |
310 | long val; | |
311 | ||
312 | if (strict_strtol(buf, 10, &val)) | |
313 | return -EINVAL; | |
314 | ||
315 | mutex_lock(&data->lock); | |
316 | ||
cffb9dd0 | 317 | data->voltage[sattr->nr][sattr->index] = volt2reg(sattr->index, val); |
1c301fc5 | 318 | |
3d849981 JD |
319 | if (sattr->index < ADT7475_VOLTAGE_COUNT) { |
320 | if (sattr->nr == MIN) | |
321 | reg = VOLTAGE_MIN_REG(sattr->index); | |
322 | else | |
323 | reg = VOLTAGE_MAX_REG(sattr->index); | |
324 | } else { | |
325 | if (sattr->nr == MIN) | |
326 | reg = REG_VTT_MIN; | |
327 | else | |
328 | reg = REG_VTT_MAX; | |
329 | } | |
1c301fc5 JC |
330 | |
331 | i2c_smbus_write_byte_data(client, reg, | |
332 | data->voltage[sattr->nr][sattr->index] >> 2); | |
333 | mutex_unlock(&data->lock); | |
334 | ||
335 | return count; | |
336 | } | |
337 | ||
338 | static ssize_t show_temp(struct device *dev, struct device_attribute *attr, | |
339 | char *buf) | |
340 | { | |
341 | struct adt7475_data *data = adt7475_update_device(dev); | |
342 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); | |
343 | int out; | |
344 | ||
345 | switch (sattr->nr) { | |
346 | case HYSTERSIS: | |
347 | mutex_lock(&data->lock); | |
348 | out = data->temp[sattr->nr][sattr->index]; | |
349 | if (sattr->index != 1) | |
350 | out = (out >> 4) & 0xF; | |
351 | else | |
352 | out = (out & 0xF); | |
353 | /* Show the value as an absolute number tied to | |
354 | * THERM */ | |
355 | out = reg2temp(data, data->temp[THERM][sattr->index]) - | |
356 | out * 1000; | |
357 | mutex_unlock(&data->lock); | |
358 | break; | |
359 | ||
360 | case OFFSET: | |
361 | /* Offset is always 2's complement, regardless of the | |
362 | * setting in CONFIG5 */ | |
363 | mutex_lock(&data->lock); | |
364 | out = (s8)data->temp[sattr->nr][sattr->index]; | |
365 | if (data->config5 & CONFIG5_TEMPOFFSET) | |
366 | out *= 1000; | |
367 | else | |
368 | out *= 500; | |
369 | mutex_unlock(&data->lock); | |
370 | break; | |
371 | ||
372 | case ALARM: | |
373 | out = (data->alarms >> (sattr->index + 4)) & 1; | |
374 | break; | |
375 | ||
376 | case FAULT: | |
377 | /* Note - only for remote1 and remote2 */ | |
cf312e07 | 378 | out = !!(data->alarms & (sattr->index ? 0x8000 : 0x4000)); |
1c301fc5 JC |
379 | break; |
380 | ||
381 | default: | |
382 | /* All other temp values are in the configured format */ | |
383 | out = reg2temp(data, data->temp[sattr->nr][sattr->index]); | |
384 | } | |
385 | ||
386 | return sprintf(buf, "%d\n", out); | |
387 | } | |
388 | ||
389 | static ssize_t set_temp(struct device *dev, struct device_attribute *attr, | |
390 | const char *buf, size_t count) | |
391 | { | |
392 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); | |
393 | struct i2c_client *client = to_i2c_client(dev); | |
394 | struct adt7475_data *data = i2c_get_clientdata(client); | |
395 | unsigned char reg = 0; | |
396 | u8 out; | |
397 | int temp; | |
398 | long val; | |
399 | ||
400 | if (strict_strtol(buf, 10, &val)) | |
401 | return -EINVAL; | |
402 | ||
403 | mutex_lock(&data->lock); | |
404 | ||
405 | /* We need the config register in all cases for temp <-> reg conv. */ | |
406 | data->config5 = adt7475_read(REG_CONFIG5); | |
407 | ||
408 | switch (sattr->nr) { | |
409 | case OFFSET: | |
410 | if (data->config5 & CONFIG5_TEMPOFFSET) { | |
411 | val = SENSORS_LIMIT(val, -63000, 127000); | |
412 | out = data->temp[OFFSET][sattr->index] = val / 1000; | |
413 | } else { | |
414 | val = SENSORS_LIMIT(val, -63000, 64000); | |
415 | out = data->temp[OFFSET][sattr->index] = val / 500; | |
416 | } | |
417 | break; | |
418 | ||
419 | case HYSTERSIS: | |
420 | /* The value will be given as an absolute value, turn it | |
421 | into an offset based on THERM */ | |
422 | ||
423 | /* Read fresh THERM and HYSTERSIS values from the chip */ | |
424 | data->temp[THERM][sattr->index] = | |
425 | adt7475_read(TEMP_THERM_REG(sattr->index)) << 2; | |
426 | adt7475_read_hystersis(client); | |
427 | ||
428 | temp = reg2temp(data, data->temp[THERM][sattr->index]); | |
429 | val = SENSORS_LIMIT(val, temp - 15000, temp); | |
430 | val = (temp - val) / 1000; | |
431 | ||
432 | if (sattr->index != 1) { | |
433 | data->temp[HYSTERSIS][sattr->index] &= 0xF0; | |
434 | data->temp[HYSTERSIS][sattr->index] |= (val & 0xF) << 4; | |
435 | } else { | |
436 | data->temp[HYSTERSIS][sattr->index] &= 0x0F; | |
437 | data->temp[HYSTERSIS][sattr->index] |= (val & 0xF); | |
438 | } | |
439 | ||
440 | out = data->temp[HYSTERSIS][sattr->index]; | |
441 | break; | |
442 | ||
443 | default: | |
444 | data->temp[sattr->nr][sattr->index] = temp2reg(data, val); | |
445 | ||
446 | /* We maintain an extra 2 digits of precision for simplicity | |
447 | * - shift those back off before writing the value */ | |
448 | out = (u8) (data->temp[sattr->nr][sattr->index] >> 2); | |
449 | } | |
450 | ||
451 | switch (sattr->nr) { | |
452 | case MIN: | |
453 | reg = TEMP_MIN_REG(sattr->index); | |
454 | break; | |
455 | case MAX: | |
456 | reg = TEMP_MAX_REG(sattr->index); | |
457 | break; | |
458 | case OFFSET: | |
459 | reg = TEMP_OFFSET_REG(sattr->index); | |
460 | break; | |
461 | case AUTOMIN: | |
462 | reg = TEMP_TMIN_REG(sattr->index); | |
463 | break; | |
464 | case THERM: | |
465 | reg = TEMP_THERM_REG(sattr->index); | |
466 | break; | |
467 | case HYSTERSIS: | |
468 | if (sattr->index != 2) | |
469 | reg = REG_REMOTE1_HYSTERSIS; | |
470 | else | |
471 | reg = REG_REMOTE2_HYSTERSIS; | |
472 | ||
473 | break; | |
474 | } | |
475 | ||
476 | i2c_smbus_write_byte_data(client, reg, out); | |
477 | ||
478 | mutex_unlock(&data->lock); | |
479 | return count; | |
480 | } | |
481 | ||
482 | /* Table of autorange values - the user will write the value in millidegrees, | |
483 | and we'll convert it */ | |
484 | static const int autorange_table[] = { | |
485 | 2000, 2500, 3330, 4000, 5000, 6670, 8000, | |
486 | 10000, 13330, 16000, 20000, 26670, 32000, 40000, | |
487 | 53330, 80000 | |
488 | }; | |
489 | ||
490 | static ssize_t show_point2(struct device *dev, struct device_attribute *attr, | |
491 | char *buf) | |
492 | { | |
493 | struct adt7475_data *data = adt7475_update_device(dev); | |
494 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); | |
495 | int out, val; | |
496 | ||
497 | mutex_lock(&data->lock); | |
498 | out = (data->range[sattr->index] >> 4) & 0x0F; | |
499 | val = reg2temp(data, data->temp[AUTOMIN][sattr->index]); | |
500 | mutex_unlock(&data->lock); | |
501 | ||
502 | return sprintf(buf, "%d\n", val + autorange_table[out]); | |
503 | } | |
504 | ||
505 | static ssize_t set_point2(struct device *dev, struct device_attribute *attr, | |
506 | const char *buf, size_t count) | |
507 | { | |
508 | struct i2c_client *client = to_i2c_client(dev); | |
509 | struct adt7475_data *data = i2c_get_clientdata(client); | |
510 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); | |
511 | int temp; | |
512 | long val; | |
513 | ||
514 | if (strict_strtol(buf, 10, &val)) | |
515 | return -EINVAL; | |
516 | ||
517 | mutex_lock(&data->lock); | |
518 | ||
519 | /* Get a fresh copy of the needed registers */ | |
520 | data->config5 = adt7475_read(REG_CONFIG5); | |
521 | data->temp[AUTOMIN][sattr->index] = | |
522 | adt7475_read(TEMP_TMIN_REG(sattr->index)) << 2; | |
523 | data->range[sattr->index] = | |
524 | adt7475_read(TEMP_TRANGE_REG(sattr->index)); | |
525 | ||
526 | /* The user will write an absolute value, so subtract the start point | |
527 | to figure the range */ | |
528 | temp = reg2temp(data, data->temp[AUTOMIN][sattr->index]); | |
529 | val = SENSORS_LIMIT(val, temp + autorange_table[0], | |
530 | temp + autorange_table[ARRAY_SIZE(autorange_table) - 1]); | |
531 | val -= temp; | |
532 | ||
533 | /* Find the nearest table entry to what the user wrote */ | |
534 | val = find_nearest(val, autorange_table, ARRAY_SIZE(autorange_table)); | |
535 | ||
536 | data->range[sattr->index] &= ~0xF0; | |
537 | data->range[sattr->index] |= val << 4; | |
538 | ||
539 | i2c_smbus_write_byte_data(client, TEMP_TRANGE_REG(sattr->index), | |
540 | data->range[sattr->index]); | |
541 | ||
542 | mutex_unlock(&data->lock); | |
543 | return count; | |
544 | } | |
545 | ||
546 | static ssize_t show_tach(struct device *dev, struct device_attribute *attr, | |
547 | char *buf) | |
548 | { | |
549 | struct adt7475_data *data = adt7475_update_device(dev); | |
550 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); | |
551 | int out; | |
552 | ||
553 | if (sattr->nr == ALARM) | |
554 | out = (data->alarms >> (sattr->index + 10)) & 1; | |
555 | else | |
556 | out = tach2rpm(data->tach[sattr->nr][sattr->index]); | |
557 | ||
558 | return sprintf(buf, "%d\n", out); | |
559 | } | |
560 | ||
561 | static ssize_t set_tach(struct device *dev, struct device_attribute *attr, | |
562 | const char *buf, size_t count) | |
563 | { | |
564 | ||
565 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); | |
566 | struct i2c_client *client = to_i2c_client(dev); | |
567 | struct adt7475_data *data = i2c_get_clientdata(client); | |
568 | unsigned long val; | |
569 | ||
570 | if (strict_strtoul(buf, 10, &val)) | |
571 | return -EINVAL; | |
572 | ||
573 | mutex_lock(&data->lock); | |
574 | ||
575 | data->tach[MIN][sattr->index] = rpm2tach(val); | |
576 | ||
577 | adt7475_write_word(client, TACH_MIN_REG(sattr->index), | |
578 | data->tach[MIN][sattr->index]); | |
579 | ||
580 | mutex_unlock(&data->lock); | |
581 | return count; | |
582 | } | |
583 | ||
584 | static ssize_t show_pwm(struct device *dev, struct device_attribute *attr, | |
585 | char *buf) | |
586 | { | |
587 | struct adt7475_data *data = adt7475_update_device(dev); | |
588 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); | |
589 | ||
590 | return sprintf(buf, "%d\n", data->pwm[sattr->nr][sattr->index]); | |
591 | } | |
592 | ||
593 | static ssize_t show_pwmchan(struct device *dev, struct device_attribute *attr, | |
594 | char *buf) | |
595 | { | |
596 | struct adt7475_data *data = adt7475_update_device(dev); | |
597 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); | |
598 | ||
599 | return sprintf(buf, "%d\n", data->pwmchan[sattr->index]); | |
600 | } | |
601 | ||
602 | static ssize_t show_pwmctrl(struct device *dev, struct device_attribute *attr, | |
603 | char *buf) | |
604 | { | |
605 | struct adt7475_data *data = adt7475_update_device(dev); | |
606 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); | |
607 | ||
608 | return sprintf(buf, "%d\n", data->pwmctl[sattr->index]); | |
609 | } | |
610 | ||
611 | static ssize_t set_pwm(struct device *dev, struct device_attribute *attr, | |
612 | const char *buf, size_t count) | |
613 | { | |
614 | ||
615 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); | |
616 | struct i2c_client *client = to_i2c_client(dev); | |
617 | struct adt7475_data *data = i2c_get_clientdata(client); | |
618 | unsigned char reg = 0; | |
619 | long val; | |
620 | ||
621 | if (strict_strtol(buf, 10, &val)) | |
622 | return -EINVAL; | |
623 | ||
624 | mutex_lock(&data->lock); | |
625 | ||
626 | switch (sattr->nr) { | |
627 | case INPUT: | |
628 | /* Get a fresh value for CONTROL */ | |
629 | data->pwm[CONTROL][sattr->index] = | |
630 | adt7475_read(PWM_CONFIG_REG(sattr->index)); | |
631 | ||
632 | /* If we are not in manual mode, then we shouldn't allow | |
633 | * the user to set the pwm speed */ | |
634 | if (((data->pwm[CONTROL][sattr->index] >> 5) & 7) != 7) { | |
635 | mutex_unlock(&data->lock); | |
636 | return count; | |
637 | } | |
638 | ||
639 | reg = PWM_REG(sattr->index); | |
640 | break; | |
641 | ||
642 | case MIN: | |
643 | reg = PWM_MIN_REG(sattr->index); | |
644 | break; | |
645 | ||
646 | case MAX: | |
647 | reg = PWM_MAX_REG(sattr->index); | |
648 | break; | |
649 | } | |
650 | ||
651 | data->pwm[sattr->nr][sattr->index] = SENSORS_LIMIT(val, 0, 0xFF); | |
652 | i2c_smbus_write_byte_data(client, reg, | |
653 | data->pwm[sattr->nr][sattr->index]); | |
654 | ||
655 | mutex_unlock(&data->lock); | |
656 | ||
657 | return count; | |
658 | } | |
659 | ||
660 | /* Called by set_pwmctrl and set_pwmchan */ | |
661 | ||
662 | static int hw_set_pwm(struct i2c_client *client, int index, | |
663 | unsigned int pwmctl, unsigned int pwmchan) | |
664 | { | |
665 | struct adt7475_data *data = i2c_get_clientdata(client); | |
666 | long val = 0; | |
667 | ||
668 | switch (pwmctl) { | |
669 | case 0: | |
670 | val = 0x03; /* Run at full speed */ | |
671 | break; | |
672 | case 1: | |
673 | val = 0x07; /* Manual mode */ | |
674 | break; | |
675 | case 2: | |
676 | switch (pwmchan) { | |
677 | case 1: | |
678 | /* Remote1 controls PWM */ | |
679 | val = 0x00; | |
680 | break; | |
681 | case 2: | |
682 | /* local controls PWM */ | |
683 | val = 0x01; | |
684 | break; | |
685 | case 4: | |
686 | /* remote2 controls PWM */ | |
687 | val = 0x02; | |
688 | break; | |
689 | case 6: | |
690 | /* local/remote2 control PWM */ | |
691 | val = 0x05; | |
692 | break; | |
693 | case 7: | |
694 | /* All three control PWM */ | |
695 | val = 0x06; | |
696 | break; | |
697 | default: | |
698 | return -EINVAL; | |
699 | } | |
700 | break; | |
701 | default: | |
702 | return -EINVAL; | |
703 | } | |
704 | ||
705 | data->pwmctl[index] = pwmctl; | |
706 | data->pwmchan[index] = pwmchan; | |
707 | ||
708 | data->pwm[CONTROL][index] &= ~0xE0; | |
709 | data->pwm[CONTROL][index] |= (val & 7) << 5; | |
710 | ||
711 | i2c_smbus_write_byte_data(client, PWM_CONFIG_REG(index), | |
712 | data->pwm[CONTROL][index]); | |
713 | ||
714 | return 0; | |
715 | } | |
716 | ||
717 | static ssize_t set_pwmchan(struct device *dev, struct device_attribute *attr, | |
718 | const char *buf, size_t count) | |
719 | { | |
720 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); | |
721 | struct i2c_client *client = to_i2c_client(dev); | |
722 | struct adt7475_data *data = i2c_get_clientdata(client); | |
723 | int r; | |
724 | long val; | |
725 | ||
726 | if (strict_strtol(buf, 10, &val)) | |
727 | return -EINVAL; | |
728 | ||
729 | mutex_lock(&data->lock); | |
730 | /* Read Modify Write PWM values */ | |
731 | adt7475_read_pwm(client, sattr->index); | |
732 | r = hw_set_pwm(client, sattr->index, data->pwmctl[sattr->index], val); | |
733 | if (r) | |
734 | count = r; | |
735 | mutex_unlock(&data->lock); | |
736 | ||
737 | return count; | |
738 | } | |
739 | ||
740 | static ssize_t set_pwmctrl(struct device *dev, struct device_attribute *attr, | |
741 | const char *buf, size_t count) | |
742 | { | |
743 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); | |
744 | struct i2c_client *client = to_i2c_client(dev); | |
745 | struct adt7475_data *data = i2c_get_clientdata(client); | |
746 | int r; | |
747 | long val; | |
748 | ||
749 | if (strict_strtol(buf, 10, &val)) | |
750 | return -EINVAL; | |
751 | ||
752 | mutex_lock(&data->lock); | |
753 | /* Read Modify Write PWM values */ | |
754 | adt7475_read_pwm(client, sattr->index); | |
755 | r = hw_set_pwm(client, sattr->index, val, data->pwmchan[sattr->index]); | |
756 | if (r) | |
757 | count = r; | |
758 | mutex_unlock(&data->lock); | |
759 | ||
760 | return count; | |
761 | } | |
762 | ||
763 | /* List of frequencies for the PWM */ | |
764 | static const int pwmfreq_table[] = { | |
765 | 11, 14, 22, 29, 35, 44, 58, 88 | |
766 | }; | |
767 | ||
768 | static ssize_t show_pwmfreq(struct device *dev, struct device_attribute *attr, | |
769 | char *buf) | |
770 | { | |
771 | struct adt7475_data *data = adt7475_update_device(dev); | |
772 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); | |
773 | ||
774 | return sprintf(buf, "%d\n", | |
775 | pwmfreq_table[data->range[sattr->index] & 7]); | |
776 | } | |
777 | ||
778 | static ssize_t set_pwmfreq(struct device *dev, struct device_attribute *attr, | |
779 | const char *buf, size_t count) | |
780 | { | |
781 | struct sensor_device_attribute_2 *sattr = to_sensor_dev_attr_2(attr); | |
782 | struct i2c_client *client = to_i2c_client(dev); | |
783 | struct adt7475_data *data = i2c_get_clientdata(client); | |
784 | int out; | |
785 | long val; | |
786 | ||
787 | if (strict_strtol(buf, 10, &val)) | |
788 | return -EINVAL; | |
789 | ||
790 | out = find_nearest(val, pwmfreq_table, ARRAY_SIZE(pwmfreq_table)); | |
791 | ||
792 | mutex_lock(&data->lock); | |
793 | ||
794 | data->range[sattr->index] = | |
795 | adt7475_read(TEMP_TRANGE_REG(sattr->index)); | |
796 | data->range[sattr->index] &= ~7; | |
797 | data->range[sattr->index] |= out; | |
798 | ||
799 | i2c_smbus_write_byte_data(client, TEMP_TRANGE_REG(sattr->index), | |
800 | data->range[sattr->index]); | |
801 | ||
802 | mutex_unlock(&data->lock); | |
803 | return count; | |
804 | } | |
805 | ||
f99318b2 JD |
806 | static ssize_t show_pwm_at_crit(struct device *dev, |
807 | struct device_attribute *devattr, char *buf) | |
808 | { | |
809 | struct adt7475_data *data = adt7475_update_device(dev); | |
810 | return sprintf(buf, "%d\n", !!(data->config4 & CONFIG4_MAXDUTY)); | |
811 | } | |
812 | ||
813 | static ssize_t set_pwm_at_crit(struct device *dev, | |
814 | struct device_attribute *devattr, | |
815 | const char *buf, size_t count) | |
816 | { | |
817 | struct i2c_client *client = to_i2c_client(dev); | |
818 | struct adt7475_data *data = i2c_get_clientdata(client); | |
819 | long val; | |
820 | ||
821 | if (strict_strtol(buf, 10, &val)) | |
822 | return -EINVAL; | |
823 | if (val != 0 && val != 1) | |
824 | return -EINVAL; | |
825 | ||
826 | mutex_lock(&data->lock); | |
827 | data->config4 = i2c_smbus_read_byte_data(client, REG_CONFIG4); | |
828 | if (val) | |
829 | data->config4 |= CONFIG4_MAXDUTY; | |
830 | else | |
831 | data->config4 &= ~CONFIG4_MAXDUTY; | |
832 | i2c_smbus_write_byte_data(client, REG_CONFIG4, data->config4); | |
833 | mutex_unlock(&data->lock); | |
834 | ||
835 | return count; | |
836 | } | |
837 | ||
3d849981 JD |
838 | static SENSOR_DEVICE_ATTR_2(in0_input, S_IRUGO, show_voltage, NULL, INPUT, 0); |
839 | static SENSOR_DEVICE_ATTR_2(in0_max, S_IRUGO | S_IWUSR, show_voltage, | |
840 | set_voltage, MAX, 0); | |
841 | static SENSOR_DEVICE_ATTR_2(in0_min, S_IRUGO | S_IWUSR, show_voltage, | |
842 | set_voltage, MIN, 0); | |
843 | static SENSOR_DEVICE_ATTR_2(in0_alarm, S_IRUGO, show_voltage, NULL, ALARM, 0); | |
cffb9dd0 | 844 | static SENSOR_DEVICE_ATTR_2(in1_input, S_IRUGO, show_voltage, NULL, INPUT, 1); |
1c301fc5 | 845 | static SENSOR_DEVICE_ATTR_2(in1_max, S_IRUGO | S_IWUSR, show_voltage, |
cffb9dd0 | 846 | set_voltage, MAX, 1); |
1c301fc5 | 847 | static SENSOR_DEVICE_ATTR_2(in1_min, S_IRUGO | S_IWUSR, show_voltage, |
cffb9dd0 JD |
848 | set_voltage, MIN, 1); |
849 | static SENSOR_DEVICE_ATTR_2(in1_alarm, S_IRUGO, show_voltage, NULL, ALARM, 1); | |
850 | static SENSOR_DEVICE_ATTR_2(in2_input, S_IRUGO, show_voltage, NULL, INPUT, 2); | |
1c301fc5 | 851 | static SENSOR_DEVICE_ATTR_2(in2_max, S_IRUGO | S_IWUSR, show_voltage, |
cffb9dd0 | 852 | set_voltage, MAX, 2); |
1c301fc5 | 853 | static SENSOR_DEVICE_ATTR_2(in2_min, S_IRUGO | S_IWUSR, show_voltage, |
cffb9dd0 JD |
854 | set_voltage, MIN, 2); |
855 | static SENSOR_DEVICE_ATTR_2(in2_alarm, S_IRUGO, show_voltage, NULL, ALARM, 2); | |
3d849981 JD |
856 | static SENSOR_DEVICE_ATTR_2(in3_input, S_IRUGO, show_voltage, NULL, INPUT, 3); |
857 | static SENSOR_DEVICE_ATTR_2(in3_max, S_IRUGO | S_IWUSR, show_voltage, | |
858 | set_voltage, MAX, 3); | |
859 | static SENSOR_DEVICE_ATTR_2(in3_min, S_IRUGO | S_IWUSR, show_voltage, | |
860 | set_voltage, MIN, 3); | |
861 | static SENSOR_DEVICE_ATTR_2(in3_alarm, S_IRUGO, show_voltage, NULL, ALARM, 3); | |
862 | static SENSOR_DEVICE_ATTR_2(in4_input, S_IRUGO, show_voltage, NULL, INPUT, 4); | |
863 | static SENSOR_DEVICE_ATTR_2(in4_max, S_IRUGO | S_IWUSR, show_voltage, | |
864 | set_voltage, MAX, 4); | |
865 | static SENSOR_DEVICE_ATTR_2(in4_min, S_IRUGO | S_IWUSR, show_voltage, | |
866 | set_voltage, MIN, 4); | |
867 | static SENSOR_DEVICE_ATTR_2(in4_alarm, S_IRUGO, show_voltage, NULL, ALARM, 8); | |
868 | static SENSOR_DEVICE_ATTR_2(in5_input, S_IRUGO, show_voltage, NULL, INPUT, 5); | |
869 | static SENSOR_DEVICE_ATTR_2(in5_max, S_IRUGO | S_IWUSR, show_voltage, | |
870 | set_voltage, MAX, 5); | |
871 | static SENSOR_DEVICE_ATTR_2(in5_min, S_IRUGO | S_IWUSR, show_voltage, | |
872 | set_voltage, MIN, 5); | |
873 | static SENSOR_DEVICE_ATTR_2(in5_alarm, S_IRUGO, show_voltage, NULL, ALARM, 31); | |
1c301fc5 JC |
874 | static SENSOR_DEVICE_ATTR_2(temp1_input, S_IRUGO, show_temp, NULL, INPUT, 0); |
875 | static SENSOR_DEVICE_ATTR_2(temp1_alarm, S_IRUGO, show_temp, NULL, ALARM, 0); | |
876 | static SENSOR_DEVICE_ATTR_2(temp1_fault, S_IRUGO, show_temp, NULL, FAULT, 0); | |
877 | static SENSOR_DEVICE_ATTR_2(temp1_max, S_IRUGO | S_IWUSR, show_temp, set_temp, | |
878 | MAX, 0); | |
879 | static SENSOR_DEVICE_ATTR_2(temp1_min, S_IRUGO | S_IWUSR, show_temp, set_temp, | |
880 | MIN, 0); | |
881 | static SENSOR_DEVICE_ATTR_2(temp1_offset, S_IRUGO | S_IWUSR, show_temp, | |
882 | set_temp, OFFSET, 0); | |
883 | static SENSOR_DEVICE_ATTR_2(temp1_auto_point1_temp, S_IRUGO | S_IWUSR, | |
884 | show_temp, set_temp, AUTOMIN, 0); | |
885 | static SENSOR_DEVICE_ATTR_2(temp1_auto_point2_temp, S_IRUGO | S_IWUSR, | |
886 | show_point2, set_point2, 0, 0); | |
887 | static SENSOR_DEVICE_ATTR_2(temp1_crit, S_IRUGO | S_IWUSR, show_temp, set_temp, | |
888 | THERM, 0); | |
889 | static SENSOR_DEVICE_ATTR_2(temp1_crit_hyst, S_IRUGO | S_IWUSR, show_temp, | |
890 | set_temp, HYSTERSIS, 0); | |
891 | static SENSOR_DEVICE_ATTR_2(temp2_input, S_IRUGO, show_temp, NULL, INPUT, 1); | |
892 | static SENSOR_DEVICE_ATTR_2(temp2_alarm, S_IRUGO, show_temp, NULL, ALARM, 1); | |
893 | static SENSOR_DEVICE_ATTR_2(temp2_max, S_IRUGO | S_IWUSR, show_temp, set_temp, | |
894 | MAX, 1); | |
895 | static SENSOR_DEVICE_ATTR_2(temp2_min, S_IRUGO | S_IWUSR, show_temp, set_temp, | |
896 | MIN, 1); | |
897 | static SENSOR_DEVICE_ATTR_2(temp2_offset, S_IRUGO | S_IWUSR, show_temp, | |
898 | set_temp, OFFSET, 1); | |
899 | static SENSOR_DEVICE_ATTR_2(temp2_auto_point1_temp, S_IRUGO | S_IWUSR, | |
900 | show_temp, set_temp, AUTOMIN, 1); | |
901 | static SENSOR_DEVICE_ATTR_2(temp2_auto_point2_temp, S_IRUGO | S_IWUSR, | |
902 | show_point2, set_point2, 0, 1); | |
903 | static SENSOR_DEVICE_ATTR_2(temp2_crit, S_IRUGO | S_IWUSR, show_temp, set_temp, | |
904 | THERM, 1); | |
905 | static SENSOR_DEVICE_ATTR_2(temp2_crit_hyst, S_IRUGO | S_IWUSR, show_temp, | |
906 | set_temp, HYSTERSIS, 1); | |
907 | static SENSOR_DEVICE_ATTR_2(temp3_input, S_IRUGO, show_temp, NULL, INPUT, 2); | |
908 | static SENSOR_DEVICE_ATTR_2(temp3_alarm, S_IRUGO, show_temp, NULL, ALARM, 2); | |
909 | static SENSOR_DEVICE_ATTR_2(temp3_fault, S_IRUGO, show_temp, NULL, FAULT, 2); | |
910 | static SENSOR_DEVICE_ATTR_2(temp3_max, S_IRUGO | S_IWUSR, show_temp, set_temp, | |
911 | MAX, 2); | |
912 | static SENSOR_DEVICE_ATTR_2(temp3_min, S_IRUGO | S_IWUSR, show_temp, set_temp, | |
913 | MIN, 2); | |
914 | static SENSOR_DEVICE_ATTR_2(temp3_offset, S_IRUGO | S_IWUSR, show_temp, | |
915 | set_temp, OFFSET, 2); | |
916 | static SENSOR_DEVICE_ATTR_2(temp3_auto_point1_temp, S_IRUGO | S_IWUSR, | |
917 | show_temp, set_temp, AUTOMIN, 2); | |
918 | static SENSOR_DEVICE_ATTR_2(temp3_auto_point2_temp, S_IRUGO | S_IWUSR, | |
919 | show_point2, set_point2, 0, 2); | |
920 | static SENSOR_DEVICE_ATTR_2(temp3_crit, S_IRUGO | S_IWUSR, show_temp, set_temp, | |
921 | THERM, 2); | |
922 | static SENSOR_DEVICE_ATTR_2(temp3_crit_hyst, S_IRUGO | S_IWUSR, show_temp, | |
923 | set_temp, HYSTERSIS, 2); | |
924 | static SENSOR_DEVICE_ATTR_2(fan1_input, S_IRUGO, show_tach, NULL, INPUT, 0); | |
925 | static SENSOR_DEVICE_ATTR_2(fan1_min, S_IRUGO | S_IWUSR, show_tach, set_tach, | |
926 | MIN, 0); | |
927 | static SENSOR_DEVICE_ATTR_2(fan1_alarm, S_IRUGO, show_tach, NULL, ALARM, 0); | |
928 | static SENSOR_DEVICE_ATTR_2(fan2_input, S_IRUGO, show_tach, NULL, INPUT, 1); | |
929 | static SENSOR_DEVICE_ATTR_2(fan2_min, S_IRUGO | S_IWUSR, show_tach, set_tach, | |
930 | MIN, 1); | |
931 | static SENSOR_DEVICE_ATTR_2(fan2_alarm, S_IRUGO, show_tach, NULL, ALARM, 1); | |
932 | static SENSOR_DEVICE_ATTR_2(fan3_input, S_IRUGO, show_tach, NULL, INPUT, 2); | |
933 | static SENSOR_DEVICE_ATTR_2(fan3_min, S_IRUGO | S_IWUSR, show_tach, set_tach, | |
934 | MIN, 2); | |
935 | static SENSOR_DEVICE_ATTR_2(fan3_alarm, S_IRUGO, show_tach, NULL, ALARM, 2); | |
936 | static SENSOR_DEVICE_ATTR_2(fan4_input, S_IRUGO, show_tach, NULL, INPUT, 3); | |
937 | static SENSOR_DEVICE_ATTR_2(fan4_min, S_IRUGO | S_IWUSR, show_tach, set_tach, | |
938 | MIN, 3); | |
939 | static SENSOR_DEVICE_ATTR_2(fan4_alarm, S_IRUGO, show_tach, NULL, ALARM, 3); | |
940 | static SENSOR_DEVICE_ATTR_2(pwm1, S_IRUGO | S_IWUSR, show_pwm, set_pwm, INPUT, | |
941 | 0); | |
942 | static SENSOR_DEVICE_ATTR_2(pwm1_freq, S_IRUGO | S_IWUSR, show_pwmfreq, | |
943 | set_pwmfreq, INPUT, 0); | |
944 | static SENSOR_DEVICE_ATTR_2(pwm1_enable, S_IRUGO | S_IWUSR, show_pwmctrl, | |
945 | set_pwmctrl, INPUT, 0); | |
84d2a314 | 946 | static SENSOR_DEVICE_ATTR_2(pwm1_auto_channels_temp, S_IRUGO | S_IWUSR, |
1c301fc5 JC |
947 | show_pwmchan, set_pwmchan, INPUT, 0); |
948 | static SENSOR_DEVICE_ATTR_2(pwm1_auto_point1_pwm, S_IRUGO | S_IWUSR, show_pwm, | |
949 | set_pwm, MIN, 0); | |
950 | static SENSOR_DEVICE_ATTR_2(pwm1_auto_point2_pwm, S_IRUGO | S_IWUSR, show_pwm, | |
951 | set_pwm, MAX, 0); | |
952 | static SENSOR_DEVICE_ATTR_2(pwm2, S_IRUGO | S_IWUSR, show_pwm, set_pwm, INPUT, | |
953 | 1); | |
954 | static SENSOR_DEVICE_ATTR_2(pwm2_freq, S_IRUGO | S_IWUSR, show_pwmfreq, | |
955 | set_pwmfreq, INPUT, 1); | |
956 | static SENSOR_DEVICE_ATTR_2(pwm2_enable, S_IRUGO | S_IWUSR, show_pwmctrl, | |
957 | set_pwmctrl, INPUT, 1); | |
84d2a314 | 958 | static SENSOR_DEVICE_ATTR_2(pwm2_auto_channels_temp, S_IRUGO | S_IWUSR, |
1c301fc5 JC |
959 | show_pwmchan, set_pwmchan, INPUT, 1); |
960 | static SENSOR_DEVICE_ATTR_2(pwm2_auto_point1_pwm, S_IRUGO | S_IWUSR, show_pwm, | |
961 | set_pwm, MIN, 1); | |
962 | static SENSOR_DEVICE_ATTR_2(pwm2_auto_point2_pwm, S_IRUGO | S_IWUSR, show_pwm, | |
963 | set_pwm, MAX, 1); | |
964 | static SENSOR_DEVICE_ATTR_2(pwm3, S_IRUGO | S_IWUSR, show_pwm, set_pwm, INPUT, | |
965 | 2); | |
966 | static SENSOR_DEVICE_ATTR_2(pwm3_freq, S_IRUGO | S_IWUSR, show_pwmfreq, | |
967 | set_pwmfreq, INPUT, 2); | |
968 | static SENSOR_DEVICE_ATTR_2(pwm3_enable, S_IRUGO | S_IWUSR, show_pwmctrl, | |
969 | set_pwmctrl, INPUT, 2); | |
84d2a314 | 970 | static SENSOR_DEVICE_ATTR_2(pwm3_auto_channels_temp, S_IRUGO | S_IWUSR, |
1c301fc5 JC |
971 | show_pwmchan, set_pwmchan, INPUT, 2); |
972 | static SENSOR_DEVICE_ATTR_2(pwm3_auto_point1_pwm, S_IRUGO | S_IWUSR, show_pwm, | |
973 | set_pwm, MIN, 2); | |
974 | static SENSOR_DEVICE_ATTR_2(pwm3_auto_point2_pwm, S_IRUGO | S_IWUSR, show_pwm, | |
975 | set_pwm, MAX, 2); | |
976 | ||
f99318b2 JD |
977 | /* Non-standard name, might need revisiting */ |
978 | static DEVICE_ATTR(pwm_use_point2_pwm_at_crit, S_IWUSR | S_IRUGO, | |
979 | show_pwm_at_crit, set_pwm_at_crit); | |
980 | ||
1c301fc5 JC |
981 | static struct attribute *adt7475_attrs[] = { |
982 | &sensor_dev_attr_in1_input.dev_attr.attr, | |
983 | &sensor_dev_attr_in1_max.dev_attr.attr, | |
984 | &sensor_dev_attr_in1_min.dev_attr.attr, | |
985 | &sensor_dev_attr_in1_alarm.dev_attr.attr, | |
986 | &sensor_dev_attr_in2_input.dev_attr.attr, | |
987 | &sensor_dev_attr_in2_max.dev_attr.attr, | |
988 | &sensor_dev_attr_in2_min.dev_attr.attr, | |
989 | &sensor_dev_attr_in2_alarm.dev_attr.attr, | |
990 | &sensor_dev_attr_temp1_input.dev_attr.attr, | |
991 | &sensor_dev_attr_temp1_alarm.dev_attr.attr, | |
992 | &sensor_dev_attr_temp1_fault.dev_attr.attr, | |
993 | &sensor_dev_attr_temp1_max.dev_attr.attr, | |
994 | &sensor_dev_attr_temp1_min.dev_attr.attr, | |
995 | &sensor_dev_attr_temp1_offset.dev_attr.attr, | |
996 | &sensor_dev_attr_temp1_auto_point1_temp.dev_attr.attr, | |
997 | &sensor_dev_attr_temp1_auto_point2_temp.dev_attr.attr, | |
998 | &sensor_dev_attr_temp1_crit.dev_attr.attr, | |
999 | &sensor_dev_attr_temp1_crit_hyst.dev_attr.attr, | |
1000 | &sensor_dev_attr_temp2_input.dev_attr.attr, | |
1001 | &sensor_dev_attr_temp2_alarm.dev_attr.attr, | |
1002 | &sensor_dev_attr_temp2_max.dev_attr.attr, | |
1003 | &sensor_dev_attr_temp2_min.dev_attr.attr, | |
1004 | &sensor_dev_attr_temp2_offset.dev_attr.attr, | |
1005 | &sensor_dev_attr_temp2_auto_point1_temp.dev_attr.attr, | |
1006 | &sensor_dev_attr_temp2_auto_point2_temp.dev_attr.attr, | |
1007 | &sensor_dev_attr_temp2_crit.dev_attr.attr, | |
1008 | &sensor_dev_attr_temp2_crit_hyst.dev_attr.attr, | |
1009 | &sensor_dev_attr_temp3_input.dev_attr.attr, | |
1010 | &sensor_dev_attr_temp3_fault.dev_attr.attr, | |
1011 | &sensor_dev_attr_temp3_alarm.dev_attr.attr, | |
1012 | &sensor_dev_attr_temp3_max.dev_attr.attr, | |
1013 | &sensor_dev_attr_temp3_min.dev_attr.attr, | |
1014 | &sensor_dev_attr_temp3_offset.dev_attr.attr, | |
1015 | &sensor_dev_attr_temp3_auto_point1_temp.dev_attr.attr, | |
1016 | &sensor_dev_attr_temp3_auto_point2_temp.dev_attr.attr, | |
1017 | &sensor_dev_attr_temp3_crit.dev_attr.attr, | |
1018 | &sensor_dev_attr_temp3_crit_hyst.dev_attr.attr, | |
1019 | &sensor_dev_attr_fan1_input.dev_attr.attr, | |
1020 | &sensor_dev_attr_fan1_min.dev_attr.attr, | |
1021 | &sensor_dev_attr_fan1_alarm.dev_attr.attr, | |
1022 | &sensor_dev_attr_fan2_input.dev_attr.attr, | |
1023 | &sensor_dev_attr_fan2_min.dev_attr.attr, | |
1024 | &sensor_dev_attr_fan2_alarm.dev_attr.attr, | |
1025 | &sensor_dev_attr_fan3_input.dev_attr.attr, | |
1026 | &sensor_dev_attr_fan3_min.dev_attr.attr, | |
1027 | &sensor_dev_attr_fan3_alarm.dev_attr.attr, | |
1028 | &sensor_dev_attr_fan4_input.dev_attr.attr, | |
1029 | &sensor_dev_attr_fan4_min.dev_attr.attr, | |
1030 | &sensor_dev_attr_fan4_alarm.dev_attr.attr, | |
1031 | &sensor_dev_attr_pwm1.dev_attr.attr, | |
1032 | &sensor_dev_attr_pwm1_freq.dev_attr.attr, | |
1033 | &sensor_dev_attr_pwm1_enable.dev_attr.attr, | |
84d2a314 | 1034 | &sensor_dev_attr_pwm1_auto_channels_temp.dev_attr.attr, |
1c301fc5 JC |
1035 | &sensor_dev_attr_pwm1_auto_point1_pwm.dev_attr.attr, |
1036 | &sensor_dev_attr_pwm1_auto_point2_pwm.dev_attr.attr, | |
1037 | &sensor_dev_attr_pwm2.dev_attr.attr, | |
1038 | &sensor_dev_attr_pwm2_freq.dev_attr.attr, | |
1039 | &sensor_dev_attr_pwm2_enable.dev_attr.attr, | |
84d2a314 | 1040 | &sensor_dev_attr_pwm2_auto_channels_temp.dev_attr.attr, |
1c301fc5 JC |
1041 | &sensor_dev_attr_pwm2_auto_point1_pwm.dev_attr.attr, |
1042 | &sensor_dev_attr_pwm2_auto_point2_pwm.dev_attr.attr, | |
1043 | &sensor_dev_attr_pwm3.dev_attr.attr, | |
1044 | &sensor_dev_attr_pwm3_freq.dev_attr.attr, | |
1045 | &sensor_dev_attr_pwm3_enable.dev_attr.attr, | |
84d2a314 | 1046 | &sensor_dev_attr_pwm3_auto_channels_temp.dev_attr.attr, |
1c301fc5 JC |
1047 | &sensor_dev_attr_pwm3_auto_point1_pwm.dev_attr.attr, |
1048 | &sensor_dev_attr_pwm3_auto_point2_pwm.dev_attr.attr, | |
f99318b2 | 1049 | &dev_attr_pwm_use_point2_pwm_at_crit.attr, |
1c301fc5 JC |
1050 | NULL, |
1051 | }; | |
1052 | ||
3d849981 JD |
1053 | /* Attributes specific to the ADT7490 */ |
1054 | static struct attribute *adt7490_attrs[] = { | |
1055 | &sensor_dev_attr_in0_input.dev_attr.attr, | |
1056 | &sensor_dev_attr_in0_max.dev_attr.attr, | |
1057 | &sensor_dev_attr_in0_min.dev_attr.attr, | |
1058 | &sensor_dev_attr_in0_alarm.dev_attr.attr, | |
1059 | &sensor_dev_attr_in3_input.dev_attr.attr, | |
1060 | &sensor_dev_attr_in3_max.dev_attr.attr, | |
1061 | &sensor_dev_attr_in3_min.dev_attr.attr, | |
1062 | &sensor_dev_attr_in3_alarm.dev_attr.attr, | |
1063 | &sensor_dev_attr_in4_input.dev_attr.attr, | |
1064 | &sensor_dev_attr_in4_max.dev_attr.attr, | |
1065 | &sensor_dev_attr_in4_min.dev_attr.attr, | |
1066 | &sensor_dev_attr_in4_alarm.dev_attr.attr, | |
1067 | &sensor_dev_attr_in5_input.dev_attr.attr, | |
1068 | &sensor_dev_attr_in5_max.dev_attr.attr, | |
1069 | &sensor_dev_attr_in5_min.dev_attr.attr, | |
1070 | &sensor_dev_attr_in5_alarm.dev_attr.attr, | |
1071 | NULL | |
1072 | }; | |
1073 | ||
54ecb9e3 | 1074 | static struct attribute_group adt7475_attr_group = { .attrs = adt7475_attrs }; |
3d849981 | 1075 | static struct attribute_group adt7490_attr_group = { .attrs = adt7490_attrs }; |
1c301fc5 JC |
1076 | |
1077 | static int adt7475_detect(struct i2c_client *client, int kind, | |
1078 | struct i2c_board_info *info) | |
1079 | { | |
1080 | struct i2c_adapter *adapter = client->adapter; | |
d656b6fd | 1081 | int vendid, devid, devid2; |
b180d050 | 1082 | const char *name; |
1c301fc5 JC |
1083 | |
1084 | if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) | |
1085 | return -ENODEV; | |
1086 | ||
b180d050 | 1087 | vendid = adt7475_read(REG_VENDID); |
d656b6fd JD |
1088 | devid2 = adt7475_read(REG_DEVID2); |
1089 | if (vendid != 0x41 || /* Analog Devices */ | |
1090 | (devid2 & 0xf8) != 0x68) | |
1091 | return -ENODEV; | |
b180d050 | 1092 | |
d656b6fd JD |
1093 | devid = adt7475_read(REG_DEVID); |
1094 | if (devid == 0x73) | |
b180d050 | 1095 | name = "adt7473"; |
d656b6fd | 1096 | else if (devid == 0x75 && client->addr == 0x2e) |
b180d050 | 1097 | name = "adt7475"; |
3d849981 JD |
1098 | else if ((devid2 & 0xfc) == 0x6c) |
1099 | name = "adt7490"; | |
b180d050 JD |
1100 | else { |
1101 | dev_dbg(&adapter->dev, | |
3d849981 | 1102 | "Couldn't detect an ADT7473/75/90 part at " |
b180d050 | 1103 | "0x%02x\n", (unsigned int)client->addr); |
52df6440 | 1104 | return -ENODEV; |
1c301fc5 JC |
1105 | } |
1106 | ||
b180d050 | 1107 | strlcpy(info->type, name, I2C_NAME_SIZE); |
1c301fc5 JC |
1108 | |
1109 | return 0; | |
1110 | } | |
1111 | ||
1112 | static int adt7475_probe(struct i2c_client *client, | |
1113 | const struct i2c_device_id *id) | |
1114 | { | |
1115 | struct adt7475_data *data; | |
1116 | int i, ret = 0; | |
1117 | ||
1118 | data = kzalloc(sizeof(*data), GFP_KERNEL); | |
1119 | if (data == NULL) | |
1120 | return -ENOMEM; | |
1121 | ||
1122 | mutex_init(&data->lock); | |
1123 | i2c_set_clientdata(client, data); | |
1124 | ||
cffb9dd0 JD |
1125 | /* Initialize device-specific values */ |
1126 | switch (id->driver_data) { | |
3d849981 JD |
1127 | case adt7490: |
1128 | data->has_voltage = 0x3f; /* in0 to in5 */ | |
1129 | break; | |
cffb9dd0 JD |
1130 | default: |
1131 | data->has_voltage = 0x06; /* in1, in2 */ | |
1132 | } | |
1133 | ||
1c301fc5 JC |
1134 | /* Call adt7475_read_pwm for all pwm's as this will reprogram any |
1135 | pwm's which are disabled to manual mode with 0% duty cycle */ | |
1136 | for (i = 0; i < ADT7475_PWM_COUNT; i++) | |
1137 | adt7475_read_pwm(client, i); | |
1138 | ||
1139 | ret = sysfs_create_group(&client->dev.kobj, &adt7475_attr_group); | |
1140 | if (ret) | |
1141 | goto efree; | |
1142 | ||
3d849981 JD |
1143 | if (id->driver_data == adt7490) { |
1144 | ret = sysfs_create_group(&client->dev.kobj, | |
1145 | &adt7490_attr_group); | |
1146 | if (ret) | |
1147 | goto eremove; | |
1148 | } | |
1149 | ||
1c301fc5 JC |
1150 | data->hwmon_dev = hwmon_device_register(&client->dev); |
1151 | if (IS_ERR(data->hwmon_dev)) { | |
1152 | ret = PTR_ERR(data->hwmon_dev); | |
1153 | goto eremove; | |
1154 | } | |
1155 | ||
1156 | return 0; | |
1157 | ||
1158 | eremove: | |
1159 | sysfs_remove_group(&client->dev.kobj, &adt7475_attr_group); | |
3d849981 JD |
1160 | if (data->has_voltage & 0x39) |
1161 | sysfs_remove_group(&client->dev.kobj, &adt7490_attr_group); | |
1c301fc5 JC |
1162 | efree: |
1163 | kfree(data); | |
1164 | return ret; | |
1165 | } | |
1166 | ||
1167 | static int adt7475_remove(struct i2c_client *client) | |
1168 | { | |
1169 | struct adt7475_data *data = i2c_get_clientdata(client); | |
1170 | ||
1171 | hwmon_device_unregister(data->hwmon_dev); | |
1172 | sysfs_remove_group(&client->dev.kobj, &adt7475_attr_group); | |
3d849981 JD |
1173 | if (data->has_voltage & 0x39) |
1174 | sysfs_remove_group(&client->dev.kobj, &adt7490_attr_group); | |
1c301fc5 JC |
1175 | kfree(data); |
1176 | ||
1177 | return 0; | |
1178 | } | |
1179 | ||
1180 | static struct i2c_driver adt7475_driver = { | |
1181 | .class = I2C_CLASS_HWMON, | |
1182 | .driver = { | |
1183 | .name = "adt7475", | |
1184 | }, | |
1185 | .probe = adt7475_probe, | |
1186 | .remove = adt7475_remove, | |
1187 | .id_table = adt7475_id, | |
1188 | .detect = adt7475_detect, | |
1189 | .address_data = &addr_data, | |
1190 | }; | |
1191 | ||
1192 | static void adt7475_read_hystersis(struct i2c_client *client) | |
1193 | { | |
1194 | struct adt7475_data *data = i2c_get_clientdata(client); | |
1195 | ||
1196 | data->temp[HYSTERSIS][0] = (u16) adt7475_read(REG_REMOTE1_HYSTERSIS); | |
1197 | data->temp[HYSTERSIS][1] = data->temp[HYSTERSIS][0]; | |
1198 | data->temp[HYSTERSIS][2] = (u16) adt7475_read(REG_REMOTE2_HYSTERSIS); | |
1199 | } | |
1200 | ||
1201 | static void adt7475_read_pwm(struct i2c_client *client, int index) | |
1202 | { | |
1203 | struct adt7475_data *data = i2c_get_clientdata(client); | |
1204 | unsigned int v; | |
1205 | ||
1206 | data->pwm[CONTROL][index] = adt7475_read(PWM_CONFIG_REG(index)); | |
1207 | ||
1208 | /* Figure out the internal value for pwmctrl and pwmchan | |
1209 | based on the current settings */ | |
1210 | v = (data->pwm[CONTROL][index] >> 5) & 7; | |
1211 | ||
1212 | if (v == 3) | |
1213 | data->pwmctl[index] = 0; | |
1214 | else if (v == 7) | |
1215 | data->pwmctl[index] = 1; | |
1216 | else if (v == 4) { | |
1217 | /* The fan is disabled - we don't want to | |
1218 | support that, so change to manual mode and | |
1219 | set the duty cycle to 0 instead | |
1220 | */ | |
1221 | data->pwm[INPUT][index] = 0; | |
1222 | data->pwm[CONTROL][index] &= ~0xE0; | |
1223 | data->pwm[CONTROL][index] |= (7 << 5); | |
1224 | ||
1225 | i2c_smbus_write_byte_data(client, PWM_CONFIG_REG(index), | |
1226 | data->pwm[INPUT][index]); | |
1227 | ||
1228 | i2c_smbus_write_byte_data(client, PWM_CONFIG_REG(index), | |
1229 | data->pwm[CONTROL][index]); | |
1230 | ||
1231 | data->pwmctl[index] = 1; | |
1232 | } else { | |
1233 | data->pwmctl[index] = 2; | |
1234 | ||
1235 | switch (v) { | |
1236 | case 0: | |
1237 | data->pwmchan[index] = 1; | |
1238 | break; | |
1239 | case 1: | |
1240 | data->pwmchan[index] = 2; | |
1241 | break; | |
1242 | case 2: | |
1243 | data->pwmchan[index] = 4; | |
1244 | break; | |
1245 | case 5: | |
1246 | data->pwmchan[index] = 6; | |
1247 | break; | |
1248 | case 6: | |
1249 | data->pwmchan[index] = 7; | |
1250 | break; | |
1251 | } | |
1252 | } | |
1253 | } | |
1254 | ||
1255 | static struct adt7475_data *adt7475_update_device(struct device *dev) | |
1256 | { | |
1257 | struct i2c_client *client = to_i2c_client(dev); | |
1258 | struct adt7475_data *data = i2c_get_clientdata(client); | |
3d849981 | 1259 | u16 ext; |
1c301fc5 JC |
1260 | int i; |
1261 | ||
1262 | mutex_lock(&data->lock); | |
1263 | ||
1264 | /* Measurement values update every 2 seconds */ | |
1265 | if (time_after(jiffies, data->measure_updated + HZ * 2) || | |
1266 | !data->valid) { | |
1267 | data->alarms = adt7475_read(REG_STATUS2) << 8; | |
1268 | data->alarms |= adt7475_read(REG_STATUS1); | |
1269 | ||
3d849981 JD |
1270 | ext = (adt7475_read(REG_EXTEND2) << 8) | |
1271 | adt7475_read(REG_EXTEND1); | |
cffb9dd0 JD |
1272 | for (i = 0; i < ADT7475_VOLTAGE_COUNT; i++) { |
1273 | if (!(data->has_voltage & (1 << i))) | |
1274 | continue; | |
1c301fc5 JC |
1275 | data->voltage[INPUT][i] = |
1276 | (adt7475_read(VOLTAGE_REG(i)) << 2) | | |
cffb9dd0 JD |
1277 | ((ext >> (i * 2)) & 3); |
1278 | } | |
1c301fc5 | 1279 | |
1c301fc5 JC |
1280 | for (i = 0; i < ADT7475_TEMP_COUNT; i++) |
1281 | data->temp[INPUT][i] = | |
1282 | (adt7475_read(TEMP_REG(i)) << 2) | | |
3d849981 JD |
1283 | ((ext >> ((i + 5) * 2)) & 3); |
1284 | ||
1285 | if (data->has_voltage & (1 << 5)) { | |
1286 | data->alarms |= adt7475_read(REG_STATUS4) << 24; | |
1287 | ext = adt7475_read(REG_EXTEND3); | |
1288 | data->voltage[INPUT][5] = adt7475_read(REG_VTT) << 2 | | |
1289 | ((ext >> 4) & 3); | |
1290 | } | |
1c301fc5 JC |
1291 | |
1292 | for (i = 0; i < ADT7475_TACH_COUNT; i++) | |
1293 | data->tach[INPUT][i] = | |
1294 | adt7475_read_word(client, TACH_REG(i)); | |
1295 | ||
1296 | /* Updated by hw when in auto mode */ | |
1297 | for (i = 0; i < ADT7475_PWM_COUNT; i++) | |
1298 | data->pwm[INPUT][i] = adt7475_read(PWM_REG(i)); | |
1299 | ||
1300 | data->measure_updated = jiffies; | |
1301 | } | |
1302 | ||
1303 | /* Limits and settings, should never change update every 60 seconds */ | |
56e35eee | 1304 | if (time_after(jiffies, data->limits_updated + HZ * 60) || |
1c301fc5 | 1305 | !data->valid) { |
f99318b2 | 1306 | data->config4 = adt7475_read(REG_CONFIG4); |
1c301fc5 JC |
1307 | data->config5 = adt7475_read(REG_CONFIG5); |
1308 | ||
1309 | for (i = 0; i < ADT7475_VOLTAGE_COUNT; i++) { | |
cffb9dd0 JD |
1310 | if (!(data->has_voltage & (1 << i))) |
1311 | continue; | |
1c301fc5 JC |
1312 | /* Adjust values so they match the input precision */ |
1313 | data->voltage[MIN][i] = | |
1314 | adt7475_read(VOLTAGE_MIN_REG(i)) << 2; | |
1315 | data->voltage[MAX][i] = | |
1316 | adt7475_read(VOLTAGE_MAX_REG(i)) << 2; | |
1317 | } | |
1318 | ||
3d849981 JD |
1319 | if (data->has_voltage & (1 << 5)) { |
1320 | data->voltage[MIN][5] = adt7475_read(REG_VTT_MIN) << 2; | |
1321 | data->voltage[MAX][5] = adt7475_read(REG_VTT_MAX) << 2; | |
1322 | } | |
1323 | ||
1c301fc5 JC |
1324 | for (i = 0; i < ADT7475_TEMP_COUNT; i++) { |
1325 | /* Adjust values so they match the input precision */ | |
1326 | data->temp[MIN][i] = | |
1327 | adt7475_read(TEMP_MIN_REG(i)) << 2; | |
1328 | data->temp[MAX][i] = | |
1329 | adt7475_read(TEMP_MAX_REG(i)) << 2; | |
1330 | data->temp[AUTOMIN][i] = | |
1331 | adt7475_read(TEMP_TMIN_REG(i)) << 2; | |
1332 | data->temp[THERM][i] = | |
1333 | adt7475_read(TEMP_THERM_REG(i)) << 2; | |
1334 | data->temp[OFFSET][i] = | |
1335 | adt7475_read(TEMP_OFFSET_REG(i)); | |
1336 | } | |
1337 | adt7475_read_hystersis(client); | |
1338 | ||
1339 | for (i = 0; i < ADT7475_TACH_COUNT; i++) | |
1340 | data->tach[MIN][i] = | |
1341 | adt7475_read_word(client, TACH_MIN_REG(i)); | |
1342 | ||
1343 | for (i = 0; i < ADT7475_PWM_COUNT; i++) { | |
1344 | data->pwm[MAX][i] = adt7475_read(PWM_MAX_REG(i)); | |
1345 | data->pwm[MIN][i] = adt7475_read(PWM_MIN_REG(i)); | |
1346 | /* Set the channel and control information */ | |
1347 | adt7475_read_pwm(client, i); | |
1348 | } | |
1349 | ||
1350 | data->range[0] = adt7475_read(TEMP_TRANGE_REG(0)); | |
1351 | data->range[1] = adt7475_read(TEMP_TRANGE_REG(1)); | |
1352 | data->range[2] = adt7475_read(TEMP_TRANGE_REG(2)); | |
1353 | ||
1354 | data->limits_updated = jiffies; | |
1355 | data->valid = 1; | |
1356 | } | |
1357 | ||
1358 | mutex_unlock(&data->lock); | |
1359 | ||
1360 | return data; | |
1361 | } | |
1362 | ||
1363 | static int __init sensors_adt7475_init(void) | |
1364 | { | |
1365 | return i2c_add_driver(&adt7475_driver); | |
1366 | } | |
1367 | ||
1368 | static void __exit sensors_adt7475_exit(void) | |
1369 | { | |
1370 | i2c_del_driver(&adt7475_driver); | |
1371 | } | |
1372 | ||
1373 | MODULE_AUTHOR("Advanced Micro Devices, Inc"); | |
1374 | MODULE_DESCRIPTION("adt7475 driver"); | |
1375 | MODULE_LICENSE("GPL"); | |
1376 | ||
1377 | module_init(sensors_adt7475_init); | |
1378 | module_exit(sensors_adt7475_exit); |