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6f9703d0 DW |
1 | /* |
2 | * A hwmon driver for the Analog Devices ADT7470 | |
3 | * Copyright (C) 2007 IBM | |
4 | * | |
5 | * Author: Darrick J. Wong <djwong@us.ibm.com> | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published by | |
9 | * the Free Software Foundation; either version 2 of the License, or | |
10 | * (at your option) any later version. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with this program; if not, write to the Free Software | |
19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
20 | */ | |
21 | ||
22 | #include <linux/module.h> | |
23 | #include <linux/jiffies.h> | |
24 | #include <linux/i2c.h> | |
25 | #include <linux/hwmon.h> | |
26 | #include <linux/hwmon-sysfs.h> | |
27 | #include <linux/err.h> | |
28 | #include <linux/mutex.h> | |
29 | #include <linux/delay.h> | |
30 | #include <linux/log2.h> | |
89fac11c | 31 | #include <linux/kthread.h> |
6f9703d0 DW |
32 | |
33 | /* Addresses to scan */ | |
25e9c86d | 34 | static const unsigned short normal_i2c[] = { 0x2C, 0x2E, 0x2F, I2C_CLIENT_END }; |
6f9703d0 | 35 | |
6f9703d0 DW |
36 | /* ADT7470 registers */ |
37 | #define ADT7470_REG_BASE_ADDR 0x20 | |
38 | #define ADT7470_REG_TEMP_BASE_ADDR 0x20 | |
39 | #define ADT7470_REG_TEMP_MAX_ADDR 0x29 | |
40 | #define ADT7470_REG_FAN_BASE_ADDR 0x2A | |
41 | #define ADT7470_REG_FAN_MAX_ADDR 0x31 | |
42 | #define ADT7470_REG_PWM_BASE_ADDR 0x32 | |
43 | #define ADT7470_REG_PWM_MAX_ADDR 0x35 | |
44 | #define ADT7470_REG_PWM_MAX_BASE_ADDR 0x38 | |
45 | #define ADT7470_REG_PWM_MAX_MAX_ADDR 0x3B | |
46 | #define ADT7470_REG_CFG 0x40 | |
47 | #define ADT7470_FSPD_MASK 0x04 | |
48 | #define ADT7470_REG_ALARM1 0x41 | |
fe03f28c DW |
49 | #define ADT7470_R1T_ALARM 0x01 |
50 | #define ADT7470_R2T_ALARM 0x02 | |
51 | #define ADT7470_R3T_ALARM 0x04 | |
52 | #define ADT7470_R4T_ALARM 0x08 | |
53 | #define ADT7470_R5T_ALARM 0x10 | |
54 | #define ADT7470_R6T_ALARM 0x20 | |
55 | #define ADT7470_R7T_ALARM 0x40 | |
56 | #define ADT7470_OOL_ALARM 0x80 | |
6f9703d0 | 57 | #define ADT7470_REG_ALARM2 0x42 |
fe03f28c DW |
58 | #define ADT7470_R8T_ALARM 0x01 |
59 | #define ADT7470_R9T_ALARM 0x02 | |
60 | #define ADT7470_R10T_ALARM 0x04 | |
61 | #define ADT7470_FAN1_ALARM 0x10 | |
62 | #define ADT7470_FAN2_ALARM 0x20 | |
63 | #define ADT7470_FAN3_ALARM 0x40 | |
64 | #define ADT7470_FAN4_ALARM 0x80 | |
6f9703d0 DW |
65 | #define ADT7470_REG_TEMP_LIMITS_BASE_ADDR 0x44 |
66 | #define ADT7470_REG_TEMP_LIMITS_MAX_ADDR 0x57 | |
67 | #define ADT7470_REG_FAN_MIN_BASE_ADDR 0x58 | |
68 | #define ADT7470_REG_FAN_MIN_MAX_ADDR 0x5F | |
69 | #define ADT7470_REG_FAN_MAX_BASE_ADDR 0x60 | |
70 | #define ADT7470_REG_FAN_MAX_MAX_ADDR 0x67 | |
71 | #define ADT7470_REG_PWM_CFG_BASE_ADDR 0x68 | |
72 | #define ADT7470_REG_PWM12_CFG 0x68 | |
73 | #define ADT7470_PWM2_AUTO_MASK 0x40 | |
74 | #define ADT7470_PWM1_AUTO_MASK 0x80 | |
2e75a4b7 | 75 | #define ADT7470_PWM_AUTO_MASK 0xC0 |
6f9703d0 DW |
76 | #define ADT7470_REG_PWM34_CFG 0x69 |
77 | #define ADT7470_PWM3_AUTO_MASK 0x40 | |
78 | #define ADT7470_PWM4_AUTO_MASK 0x80 | |
79 | #define ADT7470_REG_PWM_MIN_BASE_ADDR 0x6A | |
80 | #define ADT7470_REG_PWM_MIN_MAX_ADDR 0x6D | |
81 | #define ADT7470_REG_PWM_TEMP_MIN_BASE_ADDR 0x6E | |
82 | #define ADT7470_REG_PWM_TEMP_MIN_MAX_ADDR 0x71 | |
83 | #define ADT7470_REG_ACOUSTICS12 0x75 | |
84 | #define ADT7470_REG_ACOUSTICS34 0x76 | |
85 | #define ADT7470_REG_DEVICE 0x3D | |
86 | #define ADT7470_REG_VENDOR 0x3E | |
87 | #define ADT7470_REG_REVISION 0x3F | |
88 | #define ADT7470_REG_ALARM1_MASK 0x72 | |
89 | #define ADT7470_REG_ALARM2_MASK 0x73 | |
90 | #define ADT7470_REG_PWM_AUTO_TEMP_BASE_ADDR 0x7C | |
91 | #define ADT7470_REG_PWM_AUTO_TEMP_MAX_ADDR 0x7D | |
92 | #define ADT7470_REG_MAX_ADDR 0x81 | |
93 | ||
94 | #define ADT7470_TEMP_COUNT 10 | |
95 | #define ADT7470_TEMP_REG(x) (ADT7470_REG_TEMP_BASE_ADDR + (x)) | |
96 | #define ADT7470_TEMP_MIN_REG(x) (ADT7470_REG_TEMP_LIMITS_BASE_ADDR + ((x) * 2)) | |
97 | #define ADT7470_TEMP_MAX_REG(x) (ADT7470_REG_TEMP_LIMITS_BASE_ADDR + \ | |
98 | ((x) * 2) + 1) | |
99 | ||
100 | #define ADT7470_FAN_COUNT 4 | |
101 | #define ADT7470_REG_FAN(x) (ADT7470_REG_FAN_BASE_ADDR + ((x) * 2)) | |
102 | #define ADT7470_REG_FAN_MIN(x) (ADT7470_REG_FAN_MIN_BASE_ADDR + ((x) * 2)) | |
103 | #define ADT7470_REG_FAN_MAX(x) (ADT7470_REG_FAN_MAX_BASE_ADDR + ((x) * 2)) | |
104 | ||
105 | #define ADT7470_PWM_COUNT 4 | |
106 | #define ADT7470_REG_PWM(x) (ADT7470_REG_PWM_BASE_ADDR + (x)) | |
107 | #define ADT7470_REG_PWM_MAX(x) (ADT7470_REG_PWM_MAX_BASE_ADDR + (x)) | |
108 | #define ADT7470_REG_PWM_MIN(x) (ADT7470_REG_PWM_MIN_BASE_ADDR + (x)) | |
109 | #define ADT7470_REG_PWM_TMIN(x) (ADT7470_REG_PWM_TEMP_MIN_BASE_ADDR + (x)) | |
110 | #define ADT7470_REG_PWM_CFG(x) (ADT7470_REG_PWM_CFG_BASE_ADDR + ((x) / 2)) | |
111 | #define ADT7470_REG_PWM_AUTO_TEMP(x) (ADT7470_REG_PWM_AUTO_TEMP_BASE_ADDR + \ | |
112 | ((x) / 2)) | |
113 | ||
fe03f28c DW |
114 | #define ALARM2(x) ((x) << 8) |
115 | ||
6f9703d0 DW |
116 | #define ADT7470_VENDOR 0x41 |
117 | #define ADT7470_DEVICE 0x70 | |
118 | /* datasheet only mentions a revision 2 */ | |
119 | #define ADT7470_REVISION 0x02 | |
120 | ||
121 | /* "all temps" according to hwmon sysfs interface spec */ | |
122 | #define ADT7470_PWM_ALL_TEMPS 0x3FF | |
123 | ||
124 | /* How often do we reread sensors values? (In jiffies) */ | |
125 | #define SENSOR_REFRESH_INTERVAL (5 * HZ) | |
126 | ||
127 | /* How often do we reread sensor limit values? (In jiffies) */ | |
128 | #define LIMIT_REFRESH_INTERVAL (60 * HZ) | |
129 | ||
2f22d5df DW |
130 | /* Wait at least 200ms per sensor for 10 sensors */ |
131 | #define TEMP_COLLECTION_TIME 2000 | |
6f9703d0 | 132 | |
89fac11c DW |
133 | /* auto update thing won't fire more than every 2s */ |
134 | #define AUTO_UPDATE_INTERVAL 2000 | |
135 | ||
6f9703d0 DW |
136 | /* datasheet says to divide this number by the fan reading to get fan rpm */ |
137 | #define FAN_PERIOD_TO_RPM(x) ((90000 * 60) / (x)) | |
138 | #define FAN_RPM_TO_PERIOD FAN_PERIOD_TO_RPM | |
139 | #define FAN_PERIOD_INVALID 65535 | |
140 | #define FAN_DATA_VALID(x) ((x) && (x) != FAN_PERIOD_INVALID) | |
141 | ||
142 | struct adt7470_data { | |
1beeffe4 | 143 | struct device *hwmon_dev; |
6f9703d0 DW |
144 | struct attribute_group attrs; |
145 | struct mutex lock; | |
146 | char sensors_valid; | |
147 | char limits_valid; | |
148 | unsigned long sensors_last_updated; /* In jiffies */ | |
149 | unsigned long limits_last_updated; /* In jiffies */ | |
150 | ||
2f22d5df | 151 | int num_temp_sensors; /* -1 = probe */ |
89fac11c | 152 | int temperatures_probed; |
2f22d5df | 153 | |
6f9703d0 DW |
154 | s8 temp[ADT7470_TEMP_COUNT]; |
155 | s8 temp_min[ADT7470_TEMP_COUNT]; | |
156 | s8 temp_max[ADT7470_TEMP_COUNT]; | |
157 | u16 fan[ADT7470_FAN_COUNT]; | |
158 | u16 fan_min[ADT7470_FAN_COUNT]; | |
159 | u16 fan_max[ADT7470_FAN_COUNT]; | |
fe03f28c DW |
160 | u16 alarm; |
161 | u16 alarms_mask; | |
6f9703d0 DW |
162 | u8 force_pwm_max; |
163 | u8 pwm[ADT7470_PWM_COUNT]; | |
164 | u8 pwm_max[ADT7470_PWM_COUNT]; | |
165 | u8 pwm_automatic[ADT7470_PWM_COUNT]; | |
166 | u8 pwm_min[ADT7470_PWM_COUNT]; | |
167 | s8 pwm_tmin[ADT7470_PWM_COUNT]; | |
168 | u8 pwm_auto_temp[ADT7470_PWM_COUNT]; | |
89fac11c DW |
169 | |
170 | struct task_struct *auto_update; | |
171 | struct completion auto_update_stop; | |
172 | unsigned int auto_update_interval; | |
6f9703d0 DW |
173 | }; |
174 | ||
008f1ca5 JD |
175 | static int adt7470_probe(struct i2c_client *client, |
176 | const struct i2c_device_id *id); | |
310ec792 | 177 | static int adt7470_detect(struct i2c_client *client, |
008f1ca5 JD |
178 | struct i2c_board_info *info); |
179 | static int adt7470_remove(struct i2c_client *client); | |
180 | ||
181 | static const struct i2c_device_id adt7470_id[] = { | |
1f86df49 | 182 | { "adt7470", 0 }, |
008f1ca5 JD |
183 | { } |
184 | }; | |
185 | MODULE_DEVICE_TABLE(i2c, adt7470_id); | |
6f9703d0 DW |
186 | |
187 | static struct i2c_driver adt7470_driver = { | |
008f1ca5 | 188 | .class = I2C_CLASS_HWMON, |
6f9703d0 DW |
189 | .driver = { |
190 | .name = "adt7470", | |
191 | }, | |
008f1ca5 JD |
192 | .probe = adt7470_probe, |
193 | .remove = adt7470_remove, | |
194 | .id_table = adt7470_id, | |
195 | .detect = adt7470_detect, | |
c3813d6a | 196 | .address_list = normal_i2c, |
6f9703d0 DW |
197 | }; |
198 | ||
199 | /* | |
200 | * 16-bit registers on the ADT7470 are low-byte first. The data sheet says | |
201 | * that the low byte must be read before the high byte. | |
202 | */ | |
203 | static inline int adt7470_read_word_data(struct i2c_client *client, u8 reg) | |
204 | { | |
205 | u16 foo; | |
206 | foo = i2c_smbus_read_byte_data(client, reg); | |
207 | foo |= ((u16)i2c_smbus_read_byte_data(client, reg + 1) << 8); | |
208 | return foo; | |
209 | } | |
210 | ||
211 | static inline int adt7470_write_word_data(struct i2c_client *client, u8 reg, | |
212 | u16 value) | |
213 | { | |
214 | return i2c_smbus_write_byte_data(client, reg, value & 0xFF) | |
215 | && i2c_smbus_write_byte_data(client, reg + 1, value >> 8); | |
216 | } | |
217 | ||
218 | static void adt7470_init_client(struct i2c_client *client) | |
219 | { | |
220 | int reg = i2c_smbus_read_byte_data(client, ADT7470_REG_CFG); | |
221 | ||
222 | if (reg < 0) { | |
223 | dev_err(&client->dev, "cannot read configuration register\n"); | |
224 | } else { | |
225 | /* start monitoring (and do a self-test) */ | |
226 | i2c_smbus_write_byte_data(client, ADT7470_REG_CFG, reg | 3); | |
227 | } | |
228 | } | |
229 | ||
89fac11c DW |
230 | /* Probe for temperature sensors. Assumes lock is held */ |
231 | static int adt7470_read_temperatures(struct i2c_client *client, | |
232 | struct adt7470_data *data) | |
6f9703d0 | 233 | { |
89fac11c | 234 | unsigned long res; |
6f9703d0 | 235 | int i; |
89fac11c | 236 | u8 cfg, pwm[4], pwm_cfg[2]; |
6f9703d0 | 237 | |
2e75a4b7 DW |
238 | /* save pwm[1-4] config register */ |
239 | pwm_cfg[0] = i2c_smbus_read_byte_data(client, ADT7470_REG_PWM_CFG(0)); | |
240 | pwm_cfg[1] = i2c_smbus_read_byte_data(client, ADT7470_REG_PWM_CFG(2)); | |
241 | ||
242 | /* set manual pwm to whatever it is set to now */ | |
243 | for (i = 0; i < ADT7470_FAN_COUNT; i++) | |
244 | pwm[i] = i2c_smbus_read_byte_data(client, ADT7470_REG_PWM(i)); | |
245 | ||
246 | /* put pwm in manual mode */ | |
247 | i2c_smbus_write_byte_data(client, ADT7470_REG_PWM_CFG(0), | |
248 | pwm_cfg[0] & ~(ADT7470_PWM_AUTO_MASK)); | |
249 | i2c_smbus_write_byte_data(client, ADT7470_REG_PWM_CFG(2), | |
250 | pwm_cfg[1] & ~(ADT7470_PWM_AUTO_MASK)); | |
251 | ||
252 | /* write pwm control to whatever it was */ | |
253 | for (i = 0; i < ADT7470_FAN_COUNT; i++) | |
254 | i2c_smbus_write_byte_data(client, ADT7470_REG_PWM(i), pwm[i]); | |
255 | ||
6f9703d0 DW |
256 | /* start reading temperature sensors */ |
257 | cfg = i2c_smbus_read_byte_data(client, ADT7470_REG_CFG); | |
258 | cfg |= 0x80; | |
259 | i2c_smbus_write_byte_data(client, ADT7470_REG_CFG, cfg); | |
260 | ||
2f22d5df | 261 | /* Delay is 200ms * number of temp sensors. */ |
89fac11c DW |
262 | res = msleep_interruptible((data->num_temp_sensors >= 0 ? |
263 | data->num_temp_sensors * 200 : | |
264 | TEMP_COLLECTION_TIME)); | |
6f9703d0 DW |
265 | |
266 | /* done reading temperature sensors */ | |
267 | cfg = i2c_smbus_read_byte_data(client, ADT7470_REG_CFG); | |
268 | cfg &= ~0x80; | |
269 | i2c_smbus_write_byte_data(client, ADT7470_REG_CFG, cfg); | |
270 | ||
2e75a4b7 DW |
271 | /* restore pwm[1-4] config registers */ |
272 | i2c_smbus_write_byte_data(client, ADT7470_REG_PWM_CFG(0), pwm_cfg[0]); | |
273 | i2c_smbus_write_byte_data(client, ADT7470_REG_PWM_CFG(2), pwm_cfg[1]); | |
274 | ||
89fac11c DW |
275 | if (res) { |
276 | printk(KERN_ERR "ha ha, interrupted"); | |
277 | return -EAGAIN; | |
278 | } | |
279 | ||
280 | /* Only count fans if we have to */ | |
281 | if (data->num_temp_sensors >= 0) | |
282 | return 0; | |
283 | ||
284 | for (i = 0; i < ADT7470_TEMP_COUNT; i++) { | |
6f9703d0 DW |
285 | data->temp[i] = i2c_smbus_read_byte_data(client, |
286 | ADT7470_TEMP_REG(i)); | |
89fac11c DW |
287 | if (data->temp[i]) |
288 | data->num_temp_sensors = i + 1; | |
289 | } | |
290 | data->temperatures_probed = 1; | |
291 | return 0; | |
292 | } | |
6f9703d0 | 293 | |
89fac11c DW |
294 | static int adt7470_update_thread(void *p) |
295 | { | |
296 | struct i2c_client *client = p; | |
297 | struct adt7470_data *data = i2c_get_clientdata(client); | |
298 | ||
299 | while (!kthread_should_stop()) { | |
300 | mutex_lock(&data->lock); | |
301 | adt7470_read_temperatures(client, data); | |
302 | mutex_unlock(&data->lock); | |
303 | if (kthread_should_stop()) | |
304 | break; | |
305 | msleep_interruptible(data->auto_update_interval); | |
306 | } | |
307 | ||
308 | complete_all(&data->auto_update_stop); | |
309 | return 0; | |
310 | } | |
311 | ||
312 | static struct adt7470_data *adt7470_update_device(struct device *dev) | |
313 | { | |
314 | struct i2c_client *client = to_i2c_client(dev); | |
315 | struct adt7470_data *data = i2c_get_clientdata(client); | |
316 | unsigned long local_jiffies = jiffies; | |
317 | u8 cfg; | |
318 | int i; | |
319 | int need_sensors = 1; | |
320 | int need_limits = 1; | |
321 | ||
322 | /* | |
323 | * Figure out if we need to update the shadow registers. | |
324 | * Lockless means that we may occasionally report out of | |
325 | * date data. | |
326 | */ | |
327 | if (time_before(local_jiffies, data->sensors_last_updated + | |
328 | SENSOR_REFRESH_INTERVAL) && | |
329 | data->sensors_valid) | |
330 | need_sensors = 0; | |
331 | ||
332 | if (time_before(local_jiffies, data->limits_last_updated + | |
333 | LIMIT_REFRESH_INTERVAL) && | |
334 | data->limits_valid) | |
335 | need_limits = 0; | |
336 | ||
337 | if (!need_sensors && !need_limits) | |
338 | return data; | |
339 | ||
340 | mutex_lock(&data->lock); | |
341 | if (!need_sensors) | |
342 | goto no_sensor_update; | |
343 | ||
344 | if (!data->temperatures_probed) | |
345 | adt7470_read_temperatures(client, data); | |
346 | else | |
2f22d5df | 347 | for (i = 0; i < ADT7470_TEMP_COUNT; i++) |
89fac11c DW |
348 | data->temp[i] = i2c_smbus_read_byte_data(client, |
349 | ADT7470_TEMP_REG(i)); | |
2f22d5df | 350 | |
6f9703d0 DW |
351 | for (i = 0; i < ADT7470_FAN_COUNT; i++) |
352 | data->fan[i] = adt7470_read_word_data(client, | |
353 | ADT7470_REG_FAN(i)); | |
354 | ||
355 | for (i = 0; i < ADT7470_PWM_COUNT; i++) { | |
356 | int reg; | |
357 | int reg_mask; | |
358 | ||
359 | data->pwm[i] = i2c_smbus_read_byte_data(client, | |
360 | ADT7470_REG_PWM(i)); | |
361 | ||
362 | if (i % 2) | |
363 | reg_mask = ADT7470_PWM2_AUTO_MASK; | |
364 | else | |
365 | reg_mask = ADT7470_PWM1_AUTO_MASK; | |
366 | ||
367 | reg = ADT7470_REG_PWM_CFG(i); | |
368 | if (i2c_smbus_read_byte_data(client, reg) & reg_mask) | |
369 | data->pwm_automatic[i] = 1; | |
370 | else | |
371 | data->pwm_automatic[i] = 0; | |
372 | ||
373 | reg = ADT7470_REG_PWM_AUTO_TEMP(i); | |
374 | cfg = i2c_smbus_read_byte_data(client, reg); | |
375 | if (!(i % 2)) | |
376 | data->pwm_auto_temp[i] = cfg >> 4; | |
377 | else | |
378 | data->pwm_auto_temp[i] = cfg & 0xF; | |
379 | } | |
380 | ||
381 | if (i2c_smbus_read_byte_data(client, ADT7470_REG_CFG) & | |
382 | ADT7470_FSPD_MASK) | |
383 | data->force_pwm_max = 1; | |
384 | else | |
385 | data->force_pwm_max = 0; | |
386 | ||
fe03f28c DW |
387 | data->alarm = i2c_smbus_read_byte_data(client, ADT7470_REG_ALARM1); |
388 | if (data->alarm & ADT7470_OOL_ALARM) | |
389 | data->alarm |= ALARM2(i2c_smbus_read_byte_data(client, | |
390 | ADT7470_REG_ALARM2)); | |
6f9703d0 DW |
391 | data->alarms_mask = adt7470_read_word_data(client, |
392 | ADT7470_REG_ALARM1_MASK); | |
393 | ||
394 | data->sensors_last_updated = local_jiffies; | |
395 | data->sensors_valid = 1; | |
396 | ||
397 | no_sensor_update: | |
89fac11c | 398 | if (!need_limits) |
6f9703d0 DW |
399 | goto out; |
400 | ||
401 | for (i = 0; i < ADT7470_TEMP_COUNT; i++) { | |
402 | data->temp_min[i] = i2c_smbus_read_byte_data(client, | |
403 | ADT7470_TEMP_MIN_REG(i)); | |
404 | data->temp_max[i] = i2c_smbus_read_byte_data(client, | |
405 | ADT7470_TEMP_MAX_REG(i)); | |
406 | } | |
407 | ||
408 | for (i = 0; i < ADT7470_FAN_COUNT; i++) { | |
409 | data->fan_min[i] = adt7470_read_word_data(client, | |
410 | ADT7470_REG_FAN_MIN(i)); | |
411 | data->fan_max[i] = adt7470_read_word_data(client, | |
412 | ADT7470_REG_FAN_MAX(i)); | |
413 | } | |
414 | ||
415 | for (i = 0; i < ADT7470_PWM_COUNT; i++) { | |
416 | data->pwm_max[i] = i2c_smbus_read_byte_data(client, | |
417 | ADT7470_REG_PWM_MAX(i)); | |
418 | data->pwm_min[i] = i2c_smbus_read_byte_data(client, | |
419 | ADT7470_REG_PWM_MIN(i)); | |
420 | data->pwm_tmin[i] = i2c_smbus_read_byte_data(client, | |
421 | ADT7470_REG_PWM_TMIN(i)); | |
422 | } | |
423 | ||
424 | data->limits_last_updated = local_jiffies; | |
425 | data->limits_valid = 1; | |
426 | ||
427 | out: | |
428 | mutex_unlock(&data->lock); | |
429 | return data; | |
430 | } | |
431 | ||
89fac11c DW |
432 | static ssize_t show_auto_update_interval(struct device *dev, |
433 | struct device_attribute *devattr, | |
434 | char *buf) | |
435 | { | |
436 | struct adt7470_data *data = adt7470_update_device(dev); | |
437 | return sprintf(buf, "%d\n", data->auto_update_interval); | |
438 | } | |
439 | ||
440 | static ssize_t set_auto_update_interval(struct device *dev, | |
441 | struct device_attribute *devattr, | |
442 | const char *buf, | |
443 | size_t count) | |
444 | { | |
445 | struct i2c_client *client = to_i2c_client(dev); | |
446 | struct adt7470_data *data = i2c_get_clientdata(client); | |
447 | long temp; | |
448 | ||
449 | if (strict_strtol(buf, 10, &temp)) | |
450 | return -EINVAL; | |
451 | ||
452 | temp = SENSORS_LIMIT(temp, 0, 60000); | |
453 | ||
454 | mutex_lock(&data->lock); | |
455 | data->auto_update_interval = temp; | |
456 | mutex_unlock(&data->lock); | |
457 | ||
458 | return count; | |
459 | } | |
460 | ||
2f22d5df DW |
461 | static ssize_t show_num_temp_sensors(struct device *dev, |
462 | struct device_attribute *devattr, | |
463 | char *buf) | |
464 | { | |
465 | struct adt7470_data *data = adt7470_update_device(dev); | |
466 | return sprintf(buf, "%d\n", data->num_temp_sensors); | |
467 | } | |
468 | ||
469 | static ssize_t set_num_temp_sensors(struct device *dev, | |
470 | struct device_attribute *devattr, | |
471 | const char *buf, | |
472 | size_t count) | |
473 | { | |
474 | struct i2c_client *client = to_i2c_client(dev); | |
475 | struct adt7470_data *data = i2c_get_clientdata(client); | |
476 | long temp; | |
477 | ||
478 | if (strict_strtol(buf, 10, &temp)) | |
479 | return -EINVAL; | |
480 | ||
481 | temp = SENSORS_LIMIT(temp, -1, 10); | |
482 | ||
483 | mutex_lock(&data->lock); | |
484 | data->num_temp_sensors = temp; | |
89fac11c DW |
485 | if (temp < 0) |
486 | data->temperatures_probed = 0; | |
2f22d5df DW |
487 | mutex_unlock(&data->lock); |
488 | ||
489 | return count; | |
490 | } | |
491 | ||
6f9703d0 DW |
492 | static ssize_t show_temp_min(struct device *dev, |
493 | struct device_attribute *devattr, | |
494 | char *buf) | |
495 | { | |
496 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
497 | struct adt7470_data *data = adt7470_update_device(dev); | |
498 | return sprintf(buf, "%d\n", 1000 * data->temp_min[attr->index]); | |
499 | } | |
500 | ||
501 | static ssize_t set_temp_min(struct device *dev, | |
502 | struct device_attribute *devattr, | |
503 | const char *buf, | |
504 | size_t count) | |
505 | { | |
506 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
507 | struct i2c_client *client = to_i2c_client(dev); | |
508 | struct adt7470_data *data = i2c_get_clientdata(client); | |
05a9bd46 DW |
509 | long temp; |
510 | ||
511 | if (strict_strtol(buf, 10, &temp)) | |
512 | return -EINVAL; | |
513 | ||
8f8c1fb0 | 514 | temp = DIV_ROUND_CLOSEST(temp, 1000); |
05a9bd46 | 515 | temp = SENSORS_LIMIT(temp, 0, 255); |
6f9703d0 DW |
516 | |
517 | mutex_lock(&data->lock); | |
518 | data->temp_min[attr->index] = temp; | |
519 | i2c_smbus_write_byte_data(client, ADT7470_TEMP_MIN_REG(attr->index), | |
520 | temp); | |
521 | mutex_unlock(&data->lock); | |
522 | ||
523 | return count; | |
524 | } | |
525 | ||
526 | static ssize_t show_temp_max(struct device *dev, | |
527 | struct device_attribute *devattr, | |
528 | char *buf) | |
529 | { | |
530 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
531 | struct adt7470_data *data = adt7470_update_device(dev); | |
532 | return sprintf(buf, "%d\n", 1000 * data->temp_max[attr->index]); | |
533 | } | |
534 | ||
535 | static ssize_t set_temp_max(struct device *dev, | |
536 | struct device_attribute *devattr, | |
537 | const char *buf, | |
538 | size_t count) | |
539 | { | |
540 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
541 | struct i2c_client *client = to_i2c_client(dev); | |
542 | struct adt7470_data *data = i2c_get_clientdata(client); | |
05a9bd46 DW |
543 | long temp; |
544 | ||
545 | if (strict_strtol(buf, 10, &temp)) | |
546 | return -EINVAL; | |
547 | ||
8f8c1fb0 | 548 | temp = DIV_ROUND_CLOSEST(temp, 1000); |
05a9bd46 | 549 | temp = SENSORS_LIMIT(temp, 0, 255); |
6f9703d0 DW |
550 | |
551 | mutex_lock(&data->lock); | |
552 | data->temp_max[attr->index] = temp; | |
553 | i2c_smbus_write_byte_data(client, ADT7470_TEMP_MAX_REG(attr->index), | |
554 | temp); | |
555 | mutex_unlock(&data->lock); | |
556 | ||
557 | return count; | |
558 | } | |
559 | ||
560 | static ssize_t show_temp(struct device *dev, struct device_attribute *devattr, | |
561 | char *buf) | |
562 | { | |
563 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
564 | struct adt7470_data *data = adt7470_update_device(dev); | |
565 | return sprintf(buf, "%d\n", 1000 * data->temp[attr->index]); | |
566 | } | |
567 | ||
fe03f28c | 568 | static ssize_t show_alarm_mask(struct device *dev, |
6f9703d0 DW |
569 | struct device_attribute *devattr, |
570 | char *buf) | |
571 | { | |
6f9703d0 DW |
572 | struct adt7470_data *data = adt7470_update_device(dev); |
573 | ||
fe03f28c | 574 | return sprintf(buf, "%x\n", data->alarms_mask); |
6f9703d0 DW |
575 | } |
576 | ||
577 | static ssize_t show_fan_max(struct device *dev, | |
578 | struct device_attribute *devattr, | |
579 | char *buf) | |
580 | { | |
581 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
582 | struct adt7470_data *data = adt7470_update_device(dev); | |
583 | ||
584 | if (FAN_DATA_VALID(data->fan_max[attr->index])) | |
585 | return sprintf(buf, "%d\n", | |
586 | FAN_PERIOD_TO_RPM(data->fan_max[attr->index])); | |
587 | else | |
588 | return sprintf(buf, "0\n"); | |
589 | } | |
590 | ||
591 | static ssize_t set_fan_max(struct device *dev, | |
592 | struct device_attribute *devattr, | |
593 | const char *buf, size_t count) | |
594 | { | |
595 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
596 | struct i2c_client *client = to_i2c_client(dev); | |
597 | struct adt7470_data *data = i2c_get_clientdata(client); | |
05a9bd46 | 598 | long temp; |
6f9703d0 | 599 | |
05a9bd46 | 600 | if (strict_strtol(buf, 10, &temp) || !temp) |
6f9703d0 | 601 | return -EINVAL; |
05a9bd46 | 602 | |
6f9703d0 | 603 | temp = FAN_RPM_TO_PERIOD(temp); |
05a9bd46 | 604 | temp = SENSORS_LIMIT(temp, 1, 65534); |
6f9703d0 DW |
605 | |
606 | mutex_lock(&data->lock); | |
607 | data->fan_max[attr->index] = temp; | |
608 | adt7470_write_word_data(client, ADT7470_REG_FAN_MAX(attr->index), temp); | |
609 | mutex_unlock(&data->lock); | |
610 | ||
611 | return count; | |
612 | } | |
613 | ||
614 | static ssize_t show_fan_min(struct device *dev, | |
615 | struct device_attribute *devattr, | |
616 | char *buf) | |
617 | { | |
618 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
619 | struct adt7470_data *data = adt7470_update_device(dev); | |
620 | ||
621 | if (FAN_DATA_VALID(data->fan_min[attr->index])) | |
622 | return sprintf(buf, "%d\n", | |
623 | FAN_PERIOD_TO_RPM(data->fan_min[attr->index])); | |
624 | else | |
625 | return sprintf(buf, "0\n"); | |
626 | } | |
627 | ||
628 | static ssize_t set_fan_min(struct device *dev, | |
629 | struct device_attribute *devattr, | |
630 | const char *buf, size_t count) | |
631 | { | |
632 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
633 | struct i2c_client *client = to_i2c_client(dev); | |
634 | struct adt7470_data *data = i2c_get_clientdata(client); | |
05a9bd46 | 635 | long temp; |
6f9703d0 | 636 | |
05a9bd46 | 637 | if (strict_strtol(buf, 10, &temp) || !temp) |
6f9703d0 | 638 | return -EINVAL; |
05a9bd46 | 639 | |
6f9703d0 | 640 | temp = FAN_RPM_TO_PERIOD(temp); |
05a9bd46 | 641 | temp = SENSORS_LIMIT(temp, 1, 65534); |
6f9703d0 DW |
642 | |
643 | mutex_lock(&data->lock); | |
644 | data->fan_min[attr->index] = temp; | |
645 | adt7470_write_word_data(client, ADT7470_REG_FAN_MIN(attr->index), temp); | |
646 | mutex_unlock(&data->lock); | |
647 | ||
648 | return count; | |
649 | } | |
650 | ||
651 | static ssize_t show_fan(struct device *dev, struct device_attribute *devattr, | |
652 | char *buf) | |
653 | { | |
654 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
655 | struct adt7470_data *data = adt7470_update_device(dev); | |
656 | ||
657 | if (FAN_DATA_VALID(data->fan[attr->index])) | |
658 | return sprintf(buf, "%d\n", | |
659 | FAN_PERIOD_TO_RPM(data->fan[attr->index])); | |
660 | else | |
661 | return sprintf(buf, "0\n"); | |
662 | } | |
663 | ||
664 | static ssize_t show_force_pwm_max(struct device *dev, | |
665 | struct device_attribute *devattr, | |
666 | char *buf) | |
667 | { | |
668 | struct adt7470_data *data = adt7470_update_device(dev); | |
669 | return sprintf(buf, "%d\n", data->force_pwm_max); | |
670 | } | |
671 | ||
672 | static ssize_t set_force_pwm_max(struct device *dev, | |
673 | struct device_attribute *devattr, | |
674 | const char *buf, | |
675 | size_t count) | |
676 | { | |
677 | struct i2c_client *client = to_i2c_client(dev); | |
678 | struct adt7470_data *data = i2c_get_clientdata(client); | |
05a9bd46 | 679 | long temp; |
6f9703d0 DW |
680 | u8 reg; |
681 | ||
05a9bd46 DW |
682 | if (strict_strtol(buf, 10, &temp)) |
683 | return -EINVAL; | |
684 | ||
6f9703d0 DW |
685 | mutex_lock(&data->lock); |
686 | data->force_pwm_max = temp; | |
687 | reg = i2c_smbus_read_byte_data(client, ADT7470_REG_CFG); | |
688 | if (temp) | |
689 | reg |= ADT7470_FSPD_MASK; | |
690 | else | |
691 | reg &= ~ADT7470_FSPD_MASK; | |
692 | i2c_smbus_write_byte_data(client, ADT7470_REG_CFG, reg); | |
693 | mutex_unlock(&data->lock); | |
694 | ||
695 | return count; | |
696 | } | |
697 | ||
698 | static ssize_t show_pwm(struct device *dev, struct device_attribute *devattr, | |
699 | char *buf) | |
700 | { | |
701 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
702 | struct adt7470_data *data = adt7470_update_device(dev); | |
703 | return sprintf(buf, "%d\n", data->pwm[attr->index]); | |
704 | } | |
705 | ||
706 | static ssize_t set_pwm(struct device *dev, struct device_attribute *devattr, | |
707 | const char *buf, size_t count) | |
708 | { | |
709 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
710 | struct i2c_client *client = to_i2c_client(dev); | |
711 | struct adt7470_data *data = i2c_get_clientdata(client); | |
05a9bd46 DW |
712 | long temp; |
713 | ||
714 | if (strict_strtol(buf, 10, &temp)) | |
715 | return -EINVAL; | |
716 | ||
717 | temp = SENSORS_LIMIT(temp, 0, 255); | |
6f9703d0 DW |
718 | |
719 | mutex_lock(&data->lock); | |
720 | data->pwm[attr->index] = temp; | |
721 | i2c_smbus_write_byte_data(client, ADT7470_REG_PWM(attr->index), temp); | |
722 | mutex_unlock(&data->lock); | |
723 | ||
724 | return count; | |
725 | } | |
726 | ||
727 | static ssize_t show_pwm_max(struct device *dev, | |
728 | struct device_attribute *devattr, | |
729 | char *buf) | |
730 | { | |
731 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
732 | struct adt7470_data *data = adt7470_update_device(dev); | |
733 | return sprintf(buf, "%d\n", data->pwm_max[attr->index]); | |
734 | } | |
735 | ||
736 | static ssize_t set_pwm_max(struct device *dev, | |
737 | struct device_attribute *devattr, | |
738 | const char *buf, | |
739 | size_t count) | |
740 | { | |
741 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
742 | struct i2c_client *client = to_i2c_client(dev); | |
743 | struct adt7470_data *data = i2c_get_clientdata(client); | |
05a9bd46 DW |
744 | long temp; |
745 | ||
746 | if (strict_strtol(buf, 10, &temp)) | |
747 | return -EINVAL; | |
748 | ||
749 | temp = SENSORS_LIMIT(temp, 0, 255); | |
6f9703d0 DW |
750 | |
751 | mutex_lock(&data->lock); | |
752 | data->pwm_max[attr->index] = temp; | |
753 | i2c_smbus_write_byte_data(client, ADT7470_REG_PWM_MAX(attr->index), | |
754 | temp); | |
755 | mutex_unlock(&data->lock); | |
756 | ||
757 | return count; | |
758 | } | |
759 | ||
760 | static ssize_t show_pwm_min(struct device *dev, | |
761 | struct device_attribute *devattr, | |
762 | char *buf) | |
763 | { | |
764 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
765 | struct adt7470_data *data = adt7470_update_device(dev); | |
766 | return sprintf(buf, "%d\n", data->pwm_min[attr->index]); | |
767 | } | |
768 | ||
769 | static ssize_t set_pwm_min(struct device *dev, | |
770 | struct device_attribute *devattr, | |
771 | const char *buf, | |
772 | size_t count) | |
773 | { | |
774 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
775 | struct i2c_client *client = to_i2c_client(dev); | |
776 | struct adt7470_data *data = i2c_get_clientdata(client); | |
05a9bd46 DW |
777 | long temp; |
778 | ||
779 | if (strict_strtol(buf, 10, &temp)) | |
780 | return -EINVAL; | |
781 | ||
782 | temp = SENSORS_LIMIT(temp, 0, 255); | |
6f9703d0 DW |
783 | |
784 | mutex_lock(&data->lock); | |
785 | data->pwm_min[attr->index] = temp; | |
786 | i2c_smbus_write_byte_data(client, ADT7470_REG_PWM_MIN(attr->index), | |
787 | temp); | |
788 | mutex_unlock(&data->lock); | |
789 | ||
790 | return count; | |
791 | } | |
792 | ||
793 | static ssize_t show_pwm_tmax(struct device *dev, | |
794 | struct device_attribute *devattr, | |
795 | char *buf) | |
796 | { | |
797 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
798 | struct adt7470_data *data = adt7470_update_device(dev); | |
799 | /* the datasheet says that tmax = tmin + 20C */ | |
800 | return sprintf(buf, "%d\n", 1000 * (20 + data->pwm_tmin[attr->index])); | |
801 | } | |
802 | ||
803 | static ssize_t show_pwm_tmin(struct device *dev, | |
804 | struct device_attribute *devattr, | |
805 | char *buf) | |
806 | { | |
807 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
808 | struct adt7470_data *data = adt7470_update_device(dev); | |
809 | return sprintf(buf, "%d\n", 1000 * data->pwm_tmin[attr->index]); | |
810 | } | |
811 | ||
812 | static ssize_t set_pwm_tmin(struct device *dev, | |
813 | struct device_attribute *devattr, | |
814 | const char *buf, | |
815 | size_t count) | |
816 | { | |
817 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
818 | struct i2c_client *client = to_i2c_client(dev); | |
819 | struct adt7470_data *data = i2c_get_clientdata(client); | |
05a9bd46 DW |
820 | long temp; |
821 | ||
822 | if (strict_strtol(buf, 10, &temp)) | |
823 | return -EINVAL; | |
824 | ||
8f8c1fb0 | 825 | temp = DIV_ROUND_CLOSEST(temp, 1000); |
05a9bd46 | 826 | temp = SENSORS_LIMIT(temp, 0, 255); |
6f9703d0 DW |
827 | |
828 | mutex_lock(&data->lock); | |
829 | data->pwm_tmin[attr->index] = temp; | |
830 | i2c_smbus_write_byte_data(client, ADT7470_REG_PWM_TMIN(attr->index), | |
831 | temp); | |
832 | mutex_unlock(&data->lock); | |
833 | ||
834 | return count; | |
835 | } | |
836 | ||
837 | static ssize_t show_pwm_auto(struct device *dev, | |
838 | struct device_attribute *devattr, | |
839 | char *buf) | |
840 | { | |
841 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
842 | struct adt7470_data *data = adt7470_update_device(dev); | |
843 | return sprintf(buf, "%d\n", 1 + data->pwm_automatic[attr->index]); | |
844 | } | |
845 | ||
846 | static ssize_t set_pwm_auto(struct device *dev, | |
847 | struct device_attribute *devattr, | |
848 | const char *buf, | |
849 | size_t count) | |
850 | { | |
851 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
852 | struct i2c_client *client = to_i2c_client(dev); | |
853 | struct adt7470_data *data = i2c_get_clientdata(client); | |
6f9703d0 DW |
854 | int pwm_auto_reg = ADT7470_REG_PWM_CFG(attr->index); |
855 | int pwm_auto_reg_mask; | |
05a9bd46 | 856 | long temp; |
6f9703d0 DW |
857 | u8 reg; |
858 | ||
05a9bd46 DW |
859 | if (strict_strtol(buf, 10, &temp)) |
860 | return -EINVAL; | |
861 | ||
6f9703d0 DW |
862 | if (attr->index % 2) |
863 | pwm_auto_reg_mask = ADT7470_PWM2_AUTO_MASK; | |
864 | else | |
865 | pwm_auto_reg_mask = ADT7470_PWM1_AUTO_MASK; | |
866 | ||
867 | if (temp != 2 && temp != 1) | |
868 | return -EINVAL; | |
869 | temp--; | |
870 | ||
871 | mutex_lock(&data->lock); | |
872 | data->pwm_automatic[attr->index] = temp; | |
873 | reg = i2c_smbus_read_byte_data(client, pwm_auto_reg); | |
874 | if (temp) | |
875 | reg |= pwm_auto_reg_mask; | |
876 | else | |
877 | reg &= ~pwm_auto_reg_mask; | |
878 | i2c_smbus_write_byte_data(client, pwm_auto_reg, reg); | |
879 | mutex_unlock(&data->lock); | |
880 | ||
881 | return count; | |
882 | } | |
883 | ||
884 | static ssize_t show_pwm_auto_temp(struct device *dev, | |
885 | struct device_attribute *devattr, | |
886 | char *buf) | |
887 | { | |
888 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
889 | struct adt7470_data *data = adt7470_update_device(dev); | |
890 | u8 ctrl = data->pwm_auto_temp[attr->index]; | |
891 | ||
892 | if (ctrl) | |
893 | return sprintf(buf, "%d\n", 1 << (ctrl - 1)); | |
894 | else | |
895 | return sprintf(buf, "%d\n", ADT7470_PWM_ALL_TEMPS); | |
896 | } | |
897 | ||
898 | static int cvt_auto_temp(int input) | |
899 | { | |
900 | if (input == ADT7470_PWM_ALL_TEMPS) | |
901 | return 0; | |
ce9c2f44 | 902 | if (input < 1 || !is_power_of_2(input)) |
6f9703d0 DW |
903 | return -EINVAL; |
904 | return ilog2(input) + 1; | |
905 | } | |
906 | ||
907 | static ssize_t set_pwm_auto_temp(struct device *dev, | |
908 | struct device_attribute *devattr, | |
909 | const char *buf, | |
910 | size_t count) | |
911 | { | |
912 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
913 | struct i2c_client *client = to_i2c_client(dev); | |
914 | struct adt7470_data *data = i2c_get_clientdata(client); | |
6f9703d0 | 915 | int pwm_auto_reg = ADT7470_REG_PWM_AUTO_TEMP(attr->index); |
05a9bd46 | 916 | long temp; |
6f9703d0 DW |
917 | u8 reg; |
918 | ||
05a9bd46 DW |
919 | if (strict_strtol(buf, 10, &temp)) |
920 | return -EINVAL; | |
921 | ||
922 | temp = cvt_auto_temp(temp); | |
6f9703d0 DW |
923 | if (temp < 0) |
924 | return temp; | |
925 | ||
926 | mutex_lock(&data->lock); | |
927 | data->pwm_automatic[attr->index] = temp; | |
928 | reg = i2c_smbus_read_byte_data(client, pwm_auto_reg); | |
929 | ||
930 | if (!(attr->index % 2)) { | |
931 | reg &= 0xF; | |
932 | reg |= (temp << 4) & 0xF0; | |
933 | } else { | |
934 | reg &= 0xF0; | |
935 | reg |= temp & 0xF; | |
936 | } | |
937 | ||
938 | i2c_smbus_write_byte_data(client, pwm_auto_reg, reg); | |
939 | mutex_unlock(&data->lock); | |
940 | ||
941 | return count; | |
942 | } | |
943 | ||
fe03f28c DW |
944 | static ssize_t show_alarm(struct device *dev, |
945 | struct device_attribute *devattr, | |
946 | char *buf) | |
947 | { | |
948 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
949 | struct adt7470_data *data = adt7470_update_device(dev); | |
950 | ||
951 | if (data->alarm & attr->index) | |
952 | return sprintf(buf, "1\n"); | |
953 | else | |
954 | return sprintf(buf, "0\n"); | |
955 | } | |
956 | ||
957 | static DEVICE_ATTR(alarm_mask, S_IRUGO, show_alarm_mask, NULL); | |
2f22d5df DW |
958 | static DEVICE_ATTR(num_temp_sensors, S_IWUSR | S_IRUGO, show_num_temp_sensors, |
959 | set_num_temp_sensors); | |
89fac11c DW |
960 | static DEVICE_ATTR(auto_update_interval, S_IWUSR | S_IRUGO, |
961 | show_auto_update_interval, set_auto_update_interval); | |
6f9703d0 DW |
962 | |
963 | static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, show_temp_max, | |
964 | set_temp_max, 0); | |
965 | static SENSOR_DEVICE_ATTR(temp2_max, S_IWUSR | S_IRUGO, show_temp_max, | |
966 | set_temp_max, 1); | |
967 | static SENSOR_DEVICE_ATTR(temp3_max, S_IWUSR | S_IRUGO, show_temp_max, | |
968 | set_temp_max, 2); | |
969 | static SENSOR_DEVICE_ATTR(temp4_max, S_IWUSR | S_IRUGO, show_temp_max, | |
970 | set_temp_max, 3); | |
971 | static SENSOR_DEVICE_ATTR(temp5_max, S_IWUSR | S_IRUGO, show_temp_max, | |
972 | set_temp_max, 4); | |
973 | static SENSOR_DEVICE_ATTR(temp6_max, S_IWUSR | S_IRUGO, show_temp_max, | |
974 | set_temp_max, 5); | |
975 | static SENSOR_DEVICE_ATTR(temp7_max, S_IWUSR | S_IRUGO, show_temp_max, | |
976 | set_temp_max, 6); | |
977 | static SENSOR_DEVICE_ATTR(temp8_max, S_IWUSR | S_IRUGO, show_temp_max, | |
978 | set_temp_max, 7); | |
979 | static SENSOR_DEVICE_ATTR(temp9_max, S_IWUSR | S_IRUGO, show_temp_max, | |
980 | set_temp_max, 8); | |
981 | static SENSOR_DEVICE_ATTR(temp10_max, S_IWUSR | S_IRUGO, show_temp_max, | |
982 | set_temp_max, 9); | |
983 | ||
984 | static SENSOR_DEVICE_ATTR(temp1_min, S_IWUSR | S_IRUGO, show_temp_min, | |
985 | set_temp_min, 0); | |
986 | static SENSOR_DEVICE_ATTR(temp2_min, S_IWUSR | S_IRUGO, show_temp_min, | |
987 | set_temp_min, 1); | |
988 | static SENSOR_DEVICE_ATTR(temp3_min, S_IWUSR | S_IRUGO, show_temp_min, | |
989 | set_temp_min, 2); | |
990 | static SENSOR_DEVICE_ATTR(temp4_min, S_IWUSR | S_IRUGO, show_temp_min, | |
991 | set_temp_min, 3); | |
992 | static SENSOR_DEVICE_ATTR(temp5_min, S_IWUSR | S_IRUGO, show_temp_min, | |
993 | set_temp_min, 4); | |
994 | static SENSOR_DEVICE_ATTR(temp6_min, S_IWUSR | S_IRUGO, show_temp_min, | |
995 | set_temp_min, 5); | |
996 | static SENSOR_DEVICE_ATTR(temp7_min, S_IWUSR | S_IRUGO, show_temp_min, | |
997 | set_temp_min, 6); | |
998 | static SENSOR_DEVICE_ATTR(temp8_min, S_IWUSR | S_IRUGO, show_temp_min, | |
999 | set_temp_min, 7); | |
1000 | static SENSOR_DEVICE_ATTR(temp9_min, S_IWUSR | S_IRUGO, show_temp_min, | |
1001 | set_temp_min, 8); | |
1002 | static SENSOR_DEVICE_ATTR(temp10_min, S_IWUSR | S_IRUGO, show_temp_min, | |
1003 | set_temp_min, 9); | |
1004 | ||
1005 | static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, 0); | |
1006 | static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp, NULL, 1); | |
1007 | static SENSOR_DEVICE_ATTR(temp3_input, S_IRUGO, show_temp, NULL, 2); | |
1008 | static SENSOR_DEVICE_ATTR(temp4_input, S_IRUGO, show_temp, NULL, 3); | |
1009 | static SENSOR_DEVICE_ATTR(temp5_input, S_IRUGO, show_temp, NULL, 4); | |
1010 | static SENSOR_DEVICE_ATTR(temp6_input, S_IRUGO, show_temp, NULL, 5); | |
1011 | static SENSOR_DEVICE_ATTR(temp7_input, S_IRUGO, show_temp, NULL, 6); | |
1012 | static SENSOR_DEVICE_ATTR(temp8_input, S_IRUGO, show_temp, NULL, 7); | |
1013 | static SENSOR_DEVICE_ATTR(temp9_input, S_IRUGO, show_temp, NULL, 8); | |
1014 | static SENSOR_DEVICE_ATTR(temp10_input, S_IRUGO, show_temp, NULL, 9); | |
1015 | ||
fe03f28c DW |
1016 | static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, |
1017 | ADT7470_R1T_ALARM); | |
1018 | static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, | |
1019 | ADT7470_R2T_ALARM); | |
1020 | static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, | |
1021 | ADT7470_R3T_ALARM); | |
1022 | static SENSOR_DEVICE_ATTR(temp4_alarm, S_IRUGO, show_alarm, NULL, | |
1023 | ADT7470_R4T_ALARM); | |
1024 | static SENSOR_DEVICE_ATTR(temp5_alarm, S_IRUGO, show_alarm, NULL, | |
1025 | ADT7470_R5T_ALARM); | |
1026 | static SENSOR_DEVICE_ATTR(temp6_alarm, S_IRUGO, show_alarm, NULL, | |
1027 | ADT7470_R6T_ALARM); | |
1028 | static SENSOR_DEVICE_ATTR(temp7_alarm, S_IRUGO, show_alarm, NULL, | |
1029 | ADT7470_R7T_ALARM); | |
1030 | static SENSOR_DEVICE_ATTR(temp8_alarm, S_IRUGO, show_alarm, NULL, | |
1031 | ALARM2(ADT7470_R8T_ALARM)); | |
1032 | static SENSOR_DEVICE_ATTR(temp9_alarm, S_IRUGO, show_alarm, NULL, | |
1033 | ALARM2(ADT7470_R9T_ALARM)); | |
1034 | static SENSOR_DEVICE_ATTR(temp10_alarm, S_IRUGO, show_alarm, NULL, | |
1035 | ALARM2(ADT7470_R10T_ALARM)); | |
1036 | ||
6f9703d0 DW |
1037 | static SENSOR_DEVICE_ATTR(fan1_max, S_IWUSR | S_IRUGO, show_fan_max, |
1038 | set_fan_max, 0); | |
1039 | static SENSOR_DEVICE_ATTR(fan2_max, S_IWUSR | S_IRUGO, show_fan_max, | |
1040 | set_fan_max, 1); | |
1041 | static SENSOR_DEVICE_ATTR(fan3_max, S_IWUSR | S_IRUGO, show_fan_max, | |
1042 | set_fan_max, 2); | |
1043 | static SENSOR_DEVICE_ATTR(fan4_max, S_IWUSR | S_IRUGO, show_fan_max, | |
1044 | set_fan_max, 3); | |
1045 | ||
1046 | static SENSOR_DEVICE_ATTR(fan1_min, S_IWUSR | S_IRUGO, show_fan_min, | |
1047 | set_fan_min, 0); | |
1048 | static SENSOR_DEVICE_ATTR(fan2_min, S_IWUSR | S_IRUGO, show_fan_min, | |
1049 | set_fan_min, 1); | |
1050 | static SENSOR_DEVICE_ATTR(fan3_min, S_IWUSR | S_IRUGO, show_fan_min, | |
1051 | set_fan_min, 2); | |
1052 | static SENSOR_DEVICE_ATTR(fan4_min, S_IWUSR | S_IRUGO, show_fan_min, | |
1053 | set_fan_min, 3); | |
1054 | ||
1055 | static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0); | |
1056 | static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1); | |
1057 | static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 2); | |
1058 | static SENSOR_DEVICE_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 3); | |
1059 | ||
fe03f28c DW |
1060 | static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, |
1061 | ALARM2(ADT7470_FAN1_ALARM)); | |
1062 | static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, | |
1063 | ALARM2(ADT7470_FAN2_ALARM)); | |
1064 | static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, | |
1065 | ALARM2(ADT7470_FAN3_ALARM)); | |
1066 | static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, | |
1067 | ALARM2(ADT7470_FAN4_ALARM)); | |
1068 | ||
6f9703d0 DW |
1069 | static SENSOR_DEVICE_ATTR(force_pwm_max, S_IWUSR | S_IRUGO, |
1070 | show_force_pwm_max, set_force_pwm_max, 0); | |
1071 | ||
1072 | static SENSOR_DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 0); | |
1073 | static SENSOR_DEVICE_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 1); | |
1074 | static SENSOR_DEVICE_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 2); | |
1075 | static SENSOR_DEVICE_ATTR(pwm4, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 3); | |
1076 | ||
1077 | static SENSOR_DEVICE_ATTR(pwm1_auto_point1_pwm, S_IWUSR | S_IRUGO, | |
1078 | show_pwm_min, set_pwm_min, 0); | |
1079 | static SENSOR_DEVICE_ATTR(pwm2_auto_point1_pwm, S_IWUSR | S_IRUGO, | |
1080 | show_pwm_min, set_pwm_min, 1); | |
1081 | static SENSOR_DEVICE_ATTR(pwm3_auto_point1_pwm, S_IWUSR | S_IRUGO, | |
1082 | show_pwm_min, set_pwm_min, 2); | |
1083 | static SENSOR_DEVICE_ATTR(pwm4_auto_point1_pwm, S_IWUSR | S_IRUGO, | |
1084 | show_pwm_min, set_pwm_min, 3); | |
1085 | ||
1086 | static SENSOR_DEVICE_ATTR(pwm1_auto_point2_pwm, S_IWUSR | S_IRUGO, | |
1087 | show_pwm_max, set_pwm_max, 0); | |
1088 | static SENSOR_DEVICE_ATTR(pwm2_auto_point2_pwm, S_IWUSR | S_IRUGO, | |
1089 | show_pwm_max, set_pwm_max, 1); | |
1090 | static SENSOR_DEVICE_ATTR(pwm3_auto_point2_pwm, S_IWUSR | S_IRUGO, | |
1091 | show_pwm_max, set_pwm_max, 2); | |
1092 | static SENSOR_DEVICE_ATTR(pwm4_auto_point2_pwm, S_IWUSR | S_IRUGO, | |
1093 | show_pwm_max, set_pwm_max, 3); | |
1094 | ||
1095 | static SENSOR_DEVICE_ATTR(pwm1_auto_point1_temp, S_IWUSR | S_IRUGO, | |
1096 | show_pwm_tmin, set_pwm_tmin, 0); | |
1097 | static SENSOR_DEVICE_ATTR(pwm2_auto_point1_temp, S_IWUSR | S_IRUGO, | |
1098 | show_pwm_tmin, set_pwm_tmin, 1); | |
1099 | static SENSOR_DEVICE_ATTR(pwm3_auto_point1_temp, S_IWUSR | S_IRUGO, | |
1100 | show_pwm_tmin, set_pwm_tmin, 2); | |
1101 | static SENSOR_DEVICE_ATTR(pwm4_auto_point1_temp, S_IWUSR | S_IRUGO, | |
1102 | show_pwm_tmin, set_pwm_tmin, 3); | |
1103 | ||
1104 | static SENSOR_DEVICE_ATTR(pwm1_auto_point2_temp, S_IRUGO, show_pwm_tmax, | |
1105 | NULL, 0); | |
1106 | static SENSOR_DEVICE_ATTR(pwm2_auto_point2_temp, S_IRUGO, show_pwm_tmax, | |
1107 | NULL, 1); | |
1108 | static SENSOR_DEVICE_ATTR(pwm3_auto_point2_temp, S_IRUGO, show_pwm_tmax, | |
1109 | NULL, 2); | |
1110 | static SENSOR_DEVICE_ATTR(pwm4_auto_point2_temp, S_IRUGO, show_pwm_tmax, | |
1111 | NULL, 3); | |
1112 | ||
1113 | static SENSOR_DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO, show_pwm_auto, | |
1114 | set_pwm_auto, 0); | |
1115 | static SENSOR_DEVICE_ATTR(pwm2_enable, S_IWUSR | S_IRUGO, show_pwm_auto, | |
1116 | set_pwm_auto, 1); | |
1117 | static SENSOR_DEVICE_ATTR(pwm3_enable, S_IWUSR | S_IRUGO, show_pwm_auto, | |
1118 | set_pwm_auto, 2); | |
1119 | static SENSOR_DEVICE_ATTR(pwm4_enable, S_IWUSR | S_IRUGO, show_pwm_auto, | |
1120 | set_pwm_auto, 3); | |
1121 | ||
1122 | static SENSOR_DEVICE_ATTR(pwm1_auto_channels_temp, S_IWUSR | S_IRUGO, | |
1123 | show_pwm_auto_temp, set_pwm_auto_temp, 0); | |
1124 | static SENSOR_DEVICE_ATTR(pwm2_auto_channels_temp, S_IWUSR | S_IRUGO, | |
1125 | show_pwm_auto_temp, set_pwm_auto_temp, 1); | |
1126 | static SENSOR_DEVICE_ATTR(pwm3_auto_channels_temp, S_IWUSR | S_IRUGO, | |
1127 | show_pwm_auto_temp, set_pwm_auto_temp, 2); | |
1128 | static SENSOR_DEVICE_ATTR(pwm4_auto_channels_temp, S_IWUSR | S_IRUGO, | |
1129 | show_pwm_auto_temp, set_pwm_auto_temp, 3); | |
1130 | ||
1131 | static struct attribute *adt7470_attr[] = | |
1132 | { | |
fe03f28c | 1133 | &dev_attr_alarm_mask.attr, |
2f22d5df | 1134 | &dev_attr_num_temp_sensors.attr, |
89fac11c | 1135 | &dev_attr_auto_update_interval.attr, |
6f9703d0 DW |
1136 | &sensor_dev_attr_temp1_max.dev_attr.attr, |
1137 | &sensor_dev_attr_temp2_max.dev_attr.attr, | |
1138 | &sensor_dev_attr_temp3_max.dev_attr.attr, | |
1139 | &sensor_dev_attr_temp4_max.dev_attr.attr, | |
1140 | &sensor_dev_attr_temp5_max.dev_attr.attr, | |
1141 | &sensor_dev_attr_temp6_max.dev_attr.attr, | |
1142 | &sensor_dev_attr_temp7_max.dev_attr.attr, | |
1143 | &sensor_dev_attr_temp8_max.dev_attr.attr, | |
1144 | &sensor_dev_attr_temp9_max.dev_attr.attr, | |
1145 | &sensor_dev_attr_temp10_max.dev_attr.attr, | |
1146 | &sensor_dev_attr_temp1_min.dev_attr.attr, | |
1147 | &sensor_dev_attr_temp2_min.dev_attr.attr, | |
1148 | &sensor_dev_attr_temp3_min.dev_attr.attr, | |
1149 | &sensor_dev_attr_temp4_min.dev_attr.attr, | |
1150 | &sensor_dev_attr_temp5_min.dev_attr.attr, | |
1151 | &sensor_dev_attr_temp6_min.dev_attr.attr, | |
1152 | &sensor_dev_attr_temp7_min.dev_attr.attr, | |
1153 | &sensor_dev_attr_temp8_min.dev_attr.attr, | |
1154 | &sensor_dev_attr_temp9_min.dev_attr.attr, | |
1155 | &sensor_dev_attr_temp10_min.dev_attr.attr, | |
1156 | &sensor_dev_attr_temp1_input.dev_attr.attr, | |
1157 | &sensor_dev_attr_temp2_input.dev_attr.attr, | |
1158 | &sensor_dev_attr_temp3_input.dev_attr.attr, | |
1159 | &sensor_dev_attr_temp4_input.dev_attr.attr, | |
1160 | &sensor_dev_attr_temp5_input.dev_attr.attr, | |
1161 | &sensor_dev_attr_temp6_input.dev_attr.attr, | |
1162 | &sensor_dev_attr_temp7_input.dev_attr.attr, | |
1163 | &sensor_dev_attr_temp8_input.dev_attr.attr, | |
1164 | &sensor_dev_attr_temp9_input.dev_attr.attr, | |
1165 | &sensor_dev_attr_temp10_input.dev_attr.attr, | |
fe03f28c DW |
1166 | &sensor_dev_attr_temp1_alarm.dev_attr.attr, |
1167 | &sensor_dev_attr_temp2_alarm.dev_attr.attr, | |
1168 | &sensor_dev_attr_temp3_alarm.dev_attr.attr, | |
1169 | &sensor_dev_attr_temp4_alarm.dev_attr.attr, | |
1170 | &sensor_dev_attr_temp5_alarm.dev_attr.attr, | |
1171 | &sensor_dev_attr_temp6_alarm.dev_attr.attr, | |
1172 | &sensor_dev_attr_temp7_alarm.dev_attr.attr, | |
1173 | &sensor_dev_attr_temp8_alarm.dev_attr.attr, | |
1174 | &sensor_dev_attr_temp9_alarm.dev_attr.attr, | |
1175 | &sensor_dev_attr_temp10_alarm.dev_attr.attr, | |
6f9703d0 DW |
1176 | &sensor_dev_attr_fan1_max.dev_attr.attr, |
1177 | &sensor_dev_attr_fan2_max.dev_attr.attr, | |
1178 | &sensor_dev_attr_fan3_max.dev_attr.attr, | |
1179 | &sensor_dev_attr_fan4_max.dev_attr.attr, | |
1180 | &sensor_dev_attr_fan1_min.dev_attr.attr, | |
1181 | &sensor_dev_attr_fan2_min.dev_attr.attr, | |
1182 | &sensor_dev_attr_fan3_min.dev_attr.attr, | |
1183 | &sensor_dev_attr_fan4_min.dev_attr.attr, | |
1184 | &sensor_dev_attr_fan1_input.dev_attr.attr, | |
1185 | &sensor_dev_attr_fan2_input.dev_attr.attr, | |
1186 | &sensor_dev_attr_fan3_input.dev_attr.attr, | |
1187 | &sensor_dev_attr_fan4_input.dev_attr.attr, | |
fe03f28c DW |
1188 | &sensor_dev_attr_fan1_alarm.dev_attr.attr, |
1189 | &sensor_dev_attr_fan2_alarm.dev_attr.attr, | |
1190 | &sensor_dev_attr_fan3_alarm.dev_attr.attr, | |
1191 | &sensor_dev_attr_fan4_alarm.dev_attr.attr, | |
6f9703d0 DW |
1192 | &sensor_dev_attr_force_pwm_max.dev_attr.attr, |
1193 | &sensor_dev_attr_pwm1.dev_attr.attr, | |
1194 | &sensor_dev_attr_pwm2.dev_attr.attr, | |
1195 | &sensor_dev_attr_pwm3.dev_attr.attr, | |
1196 | &sensor_dev_attr_pwm4.dev_attr.attr, | |
1197 | &sensor_dev_attr_pwm1_auto_point1_pwm.dev_attr.attr, | |
1198 | &sensor_dev_attr_pwm2_auto_point1_pwm.dev_attr.attr, | |
1199 | &sensor_dev_attr_pwm3_auto_point1_pwm.dev_attr.attr, | |
1200 | &sensor_dev_attr_pwm4_auto_point1_pwm.dev_attr.attr, | |
1201 | &sensor_dev_attr_pwm1_auto_point2_pwm.dev_attr.attr, | |
1202 | &sensor_dev_attr_pwm2_auto_point2_pwm.dev_attr.attr, | |
1203 | &sensor_dev_attr_pwm3_auto_point2_pwm.dev_attr.attr, | |
1204 | &sensor_dev_attr_pwm4_auto_point2_pwm.dev_attr.attr, | |
1205 | &sensor_dev_attr_pwm1_auto_point1_temp.dev_attr.attr, | |
1206 | &sensor_dev_attr_pwm2_auto_point1_temp.dev_attr.attr, | |
1207 | &sensor_dev_attr_pwm3_auto_point1_temp.dev_attr.attr, | |
1208 | &sensor_dev_attr_pwm4_auto_point1_temp.dev_attr.attr, | |
1209 | &sensor_dev_attr_pwm1_auto_point2_temp.dev_attr.attr, | |
1210 | &sensor_dev_attr_pwm2_auto_point2_temp.dev_attr.attr, | |
1211 | &sensor_dev_attr_pwm3_auto_point2_temp.dev_attr.attr, | |
1212 | &sensor_dev_attr_pwm4_auto_point2_temp.dev_attr.attr, | |
1213 | &sensor_dev_attr_pwm1_enable.dev_attr.attr, | |
1214 | &sensor_dev_attr_pwm2_enable.dev_attr.attr, | |
1215 | &sensor_dev_attr_pwm3_enable.dev_attr.attr, | |
1216 | &sensor_dev_attr_pwm4_enable.dev_attr.attr, | |
1217 | &sensor_dev_attr_pwm1_auto_channels_temp.dev_attr.attr, | |
1218 | &sensor_dev_attr_pwm2_auto_channels_temp.dev_attr.attr, | |
1219 | &sensor_dev_attr_pwm3_auto_channels_temp.dev_attr.attr, | |
1220 | &sensor_dev_attr_pwm4_auto_channels_temp.dev_attr.attr, | |
1221 | NULL | |
1222 | }; | |
1223 | ||
008f1ca5 | 1224 | /* Return 0 if detection is successful, -ENODEV otherwise */ |
310ec792 | 1225 | static int adt7470_detect(struct i2c_client *client, |
008f1ca5 | 1226 | struct i2c_board_info *info) |
6f9703d0 | 1227 | { |
008f1ca5 | 1228 | struct i2c_adapter *adapter = client->adapter; |
52df6440 | 1229 | int vendor, device, revision; |
6f9703d0 DW |
1230 | |
1231 | if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) | |
008f1ca5 | 1232 | return -ENODEV; |
6f9703d0 | 1233 | |
52df6440 JD |
1234 | vendor = i2c_smbus_read_byte_data(client, ADT7470_REG_VENDOR); |
1235 | if (vendor != ADT7470_VENDOR) | |
1236 | return -ENODEV; | |
6f9703d0 | 1237 | |
52df6440 JD |
1238 | device = i2c_smbus_read_byte_data(client, ADT7470_REG_DEVICE); |
1239 | if (device != ADT7470_DEVICE) | |
1240 | return -ENODEV; | |
6f9703d0 | 1241 | |
52df6440 JD |
1242 | revision = i2c_smbus_read_byte_data(client, ADT7470_REG_REVISION); |
1243 | if (revision != ADT7470_REVISION) | |
1244 | return -ENODEV; | |
6f9703d0 | 1245 | |
008f1ca5 | 1246 | strlcpy(info->type, "adt7470", I2C_NAME_SIZE); |
6f9703d0 | 1247 | |
008f1ca5 JD |
1248 | return 0; |
1249 | } | |
1250 | ||
1251 | static int adt7470_probe(struct i2c_client *client, | |
1252 | const struct i2c_device_id *id) | |
1253 | { | |
1254 | struct adt7470_data *data; | |
1255 | int err; | |
1256 | ||
1257 | data = kzalloc(sizeof(struct adt7470_data), GFP_KERNEL); | |
1258 | if (!data) { | |
1259 | err = -ENOMEM; | |
1260 | goto exit; | |
1261 | } | |
1262 | ||
2f22d5df | 1263 | data->num_temp_sensors = -1; |
89fac11c | 1264 | data->auto_update_interval = AUTO_UPDATE_INTERVAL; |
2f22d5df | 1265 | |
008f1ca5 JD |
1266 | i2c_set_clientdata(client, data); |
1267 | mutex_init(&data->lock); | |
6f9703d0 DW |
1268 | |
1269 | dev_info(&client->dev, "%s chip found\n", client->name); | |
1270 | ||
1271 | /* Initialize the ADT7470 chip */ | |
1272 | adt7470_init_client(client); | |
1273 | ||
1274 | /* Register sysfs hooks */ | |
1275 | data->attrs.attrs = adt7470_attr; | |
1276 | if ((err = sysfs_create_group(&client->dev.kobj, &data->attrs))) | |
008f1ca5 | 1277 | goto exit_free; |
6f9703d0 | 1278 | |
1beeffe4 TJ |
1279 | data->hwmon_dev = hwmon_device_register(&client->dev); |
1280 | if (IS_ERR(data->hwmon_dev)) { | |
1281 | err = PTR_ERR(data->hwmon_dev); | |
6f9703d0 DW |
1282 | goto exit_remove; |
1283 | } | |
1284 | ||
89fac11c DW |
1285 | init_completion(&data->auto_update_stop); |
1286 | data->auto_update = kthread_run(adt7470_update_thread, client, | |
1287 | dev_name(data->hwmon_dev)); | |
1288 | if (IS_ERR(data->auto_update)) | |
1289 | goto exit_unregister; | |
1290 | ||
6f9703d0 DW |
1291 | return 0; |
1292 | ||
89fac11c DW |
1293 | exit_unregister: |
1294 | hwmon_device_unregister(data->hwmon_dev); | |
6f9703d0 DW |
1295 | exit_remove: |
1296 | sysfs_remove_group(&client->dev.kobj, &data->attrs); | |
6f9703d0 DW |
1297 | exit_free: |
1298 | kfree(data); | |
1299 | exit: | |
1300 | return err; | |
1301 | } | |
1302 | ||
008f1ca5 | 1303 | static int adt7470_remove(struct i2c_client *client) |
6f9703d0 DW |
1304 | { |
1305 | struct adt7470_data *data = i2c_get_clientdata(client); | |
1306 | ||
89fac11c DW |
1307 | kthread_stop(data->auto_update); |
1308 | wait_for_completion(&data->auto_update_stop); | |
1beeffe4 | 1309 | hwmon_device_unregister(data->hwmon_dev); |
6f9703d0 | 1310 | sysfs_remove_group(&client->dev.kobj, &data->attrs); |
6f9703d0 DW |
1311 | kfree(data); |
1312 | return 0; | |
1313 | } | |
1314 | ||
1315 | static int __init adt7470_init(void) | |
1316 | { | |
1317 | return i2c_add_driver(&adt7470_driver); | |
1318 | } | |
1319 | ||
1320 | static void __exit adt7470_exit(void) | |
1321 | { | |
1322 | i2c_del_driver(&adt7470_driver); | |
1323 | } | |
1324 | ||
1325 | MODULE_AUTHOR("Darrick J. Wong <djwong@us.ibm.com>"); | |
1326 | MODULE_DESCRIPTION("ADT7470 driver"); | |
1327 | MODULE_LICENSE("GPL"); | |
1328 | ||
1329 | module_init(adt7470_init); | |
1330 | module_exit(adt7470_exit); |