Commit | Line | Data |
---|---|---|
6f9703d0 DW |
1 | /* |
2 | * A hwmon driver for the Analog Devices ADT7470 | |
3 | * Copyright (C) 2007 IBM | |
4 | * | |
5407e051 | 5 | * Author: Darrick J. Wong <darrick.wong@oracle.com> |
6f9703d0 DW |
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 | ||
2e991201 JP |
22 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
23 | ||
6f9703d0 DW |
24 | #include <linux/module.h> |
25 | #include <linux/jiffies.h> | |
26 | #include <linux/i2c.h> | |
27 | #include <linux/hwmon.h> | |
28 | #include <linux/hwmon-sysfs.h> | |
29 | #include <linux/err.h> | |
30 | #include <linux/mutex.h> | |
31 | #include <linux/delay.h> | |
32 | #include <linux/log2.h> | |
89fac11c | 33 | #include <linux/kthread.h> |
5a0e3ad6 | 34 | #include <linux/slab.h> |
6f9703d0 DW |
35 | |
36 | /* Addresses to scan */ | |
25e9c86d | 37 | static const unsigned short normal_i2c[] = { 0x2C, 0x2E, 0x2F, I2C_CLIENT_END }; |
6f9703d0 | 38 | |
6f9703d0 DW |
39 | /* ADT7470 registers */ |
40 | #define ADT7470_REG_BASE_ADDR 0x20 | |
41 | #define ADT7470_REG_TEMP_BASE_ADDR 0x20 | |
42 | #define ADT7470_REG_TEMP_MAX_ADDR 0x29 | |
43 | #define ADT7470_REG_FAN_BASE_ADDR 0x2A | |
44 | #define ADT7470_REG_FAN_MAX_ADDR 0x31 | |
45 | #define ADT7470_REG_PWM_BASE_ADDR 0x32 | |
46 | #define ADT7470_REG_PWM_MAX_ADDR 0x35 | |
47 | #define ADT7470_REG_PWM_MAX_BASE_ADDR 0x38 | |
48 | #define ADT7470_REG_PWM_MAX_MAX_ADDR 0x3B | |
49 | #define ADT7470_REG_CFG 0x40 | |
50 | #define ADT7470_FSPD_MASK 0x04 | |
51 | #define ADT7470_REG_ALARM1 0x41 | |
fe03f28c DW |
52 | #define ADT7470_R1T_ALARM 0x01 |
53 | #define ADT7470_R2T_ALARM 0x02 | |
54 | #define ADT7470_R3T_ALARM 0x04 | |
55 | #define ADT7470_R4T_ALARM 0x08 | |
56 | #define ADT7470_R5T_ALARM 0x10 | |
57 | #define ADT7470_R6T_ALARM 0x20 | |
58 | #define ADT7470_R7T_ALARM 0x40 | |
59 | #define ADT7470_OOL_ALARM 0x80 | |
6f9703d0 | 60 | #define ADT7470_REG_ALARM2 0x42 |
fe03f28c DW |
61 | #define ADT7470_R8T_ALARM 0x01 |
62 | #define ADT7470_R9T_ALARM 0x02 | |
63 | #define ADT7470_R10T_ALARM 0x04 | |
64 | #define ADT7470_FAN1_ALARM 0x10 | |
65 | #define ADT7470_FAN2_ALARM 0x20 | |
66 | #define ADT7470_FAN3_ALARM 0x40 | |
67 | #define ADT7470_FAN4_ALARM 0x80 | |
6f9703d0 DW |
68 | #define ADT7470_REG_TEMP_LIMITS_BASE_ADDR 0x44 |
69 | #define ADT7470_REG_TEMP_LIMITS_MAX_ADDR 0x57 | |
70 | #define ADT7470_REG_FAN_MIN_BASE_ADDR 0x58 | |
71 | #define ADT7470_REG_FAN_MIN_MAX_ADDR 0x5F | |
72 | #define ADT7470_REG_FAN_MAX_BASE_ADDR 0x60 | |
73 | #define ADT7470_REG_FAN_MAX_MAX_ADDR 0x67 | |
74 | #define ADT7470_REG_PWM_CFG_BASE_ADDR 0x68 | |
75 | #define ADT7470_REG_PWM12_CFG 0x68 | |
76 | #define ADT7470_PWM2_AUTO_MASK 0x40 | |
77 | #define ADT7470_PWM1_AUTO_MASK 0x80 | |
2e75a4b7 | 78 | #define ADT7470_PWM_AUTO_MASK 0xC0 |
6f9703d0 DW |
79 | #define ADT7470_REG_PWM34_CFG 0x69 |
80 | #define ADT7470_PWM3_AUTO_MASK 0x40 | |
81 | #define ADT7470_PWM4_AUTO_MASK 0x80 | |
82 | #define ADT7470_REG_PWM_MIN_BASE_ADDR 0x6A | |
83 | #define ADT7470_REG_PWM_MIN_MAX_ADDR 0x6D | |
84 | #define ADT7470_REG_PWM_TEMP_MIN_BASE_ADDR 0x6E | |
85 | #define ADT7470_REG_PWM_TEMP_MIN_MAX_ADDR 0x71 | |
86 | #define ADT7470_REG_ACOUSTICS12 0x75 | |
87 | #define ADT7470_REG_ACOUSTICS34 0x76 | |
88 | #define ADT7470_REG_DEVICE 0x3D | |
89 | #define ADT7470_REG_VENDOR 0x3E | |
90 | #define ADT7470_REG_REVISION 0x3F | |
91 | #define ADT7470_REG_ALARM1_MASK 0x72 | |
92 | #define ADT7470_REG_ALARM2_MASK 0x73 | |
93 | #define ADT7470_REG_PWM_AUTO_TEMP_BASE_ADDR 0x7C | |
94 | #define ADT7470_REG_PWM_AUTO_TEMP_MAX_ADDR 0x7D | |
95 | #define ADT7470_REG_MAX_ADDR 0x81 | |
96 | ||
97 | #define ADT7470_TEMP_COUNT 10 | |
98 | #define ADT7470_TEMP_REG(x) (ADT7470_REG_TEMP_BASE_ADDR + (x)) | |
99 | #define ADT7470_TEMP_MIN_REG(x) (ADT7470_REG_TEMP_LIMITS_BASE_ADDR + ((x) * 2)) | |
100 | #define ADT7470_TEMP_MAX_REG(x) (ADT7470_REG_TEMP_LIMITS_BASE_ADDR + \ | |
101 | ((x) * 2) + 1) | |
102 | ||
103 | #define ADT7470_FAN_COUNT 4 | |
104 | #define ADT7470_REG_FAN(x) (ADT7470_REG_FAN_BASE_ADDR + ((x) * 2)) | |
105 | #define ADT7470_REG_FAN_MIN(x) (ADT7470_REG_FAN_MIN_BASE_ADDR + ((x) * 2)) | |
106 | #define ADT7470_REG_FAN_MAX(x) (ADT7470_REG_FAN_MAX_BASE_ADDR + ((x) * 2)) | |
107 | ||
108 | #define ADT7470_PWM_COUNT 4 | |
109 | #define ADT7470_REG_PWM(x) (ADT7470_REG_PWM_BASE_ADDR + (x)) | |
110 | #define ADT7470_REG_PWM_MAX(x) (ADT7470_REG_PWM_MAX_BASE_ADDR + (x)) | |
111 | #define ADT7470_REG_PWM_MIN(x) (ADT7470_REG_PWM_MIN_BASE_ADDR + (x)) | |
112 | #define ADT7470_REG_PWM_TMIN(x) (ADT7470_REG_PWM_TEMP_MIN_BASE_ADDR + (x)) | |
113 | #define ADT7470_REG_PWM_CFG(x) (ADT7470_REG_PWM_CFG_BASE_ADDR + ((x) / 2)) | |
114 | #define ADT7470_REG_PWM_AUTO_TEMP(x) (ADT7470_REG_PWM_AUTO_TEMP_BASE_ADDR + \ | |
115 | ((x) / 2)) | |
116 | ||
fe03f28c DW |
117 | #define ALARM2(x) ((x) << 8) |
118 | ||
6f9703d0 DW |
119 | #define ADT7470_VENDOR 0x41 |
120 | #define ADT7470_DEVICE 0x70 | |
121 | /* datasheet only mentions a revision 2 */ | |
122 | #define ADT7470_REVISION 0x02 | |
123 | ||
124 | /* "all temps" according to hwmon sysfs interface spec */ | |
125 | #define ADT7470_PWM_ALL_TEMPS 0x3FF | |
126 | ||
127 | /* How often do we reread sensors values? (In jiffies) */ | |
128 | #define SENSOR_REFRESH_INTERVAL (5 * HZ) | |
129 | ||
130 | /* How often do we reread sensor limit values? (In jiffies) */ | |
131 | #define LIMIT_REFRESH_INTERVAL (60 * HZ) | |
132 | ||
2f22d5df DW |
133 | /* Wait at least 200ms per sensor for 10 sensors */ |
134 | #define TEMP_COLLECTION_TIME 2000 | |
6f9703d0 | 135 | |
89fac11c DW |
136 | /* auto update thing won't fire more than every 2s */ |
137 | #define AUTO_UPDATE_INTERVAL 2000 | |
138 | ||
6f9703d0 DW |
139 | /* datasheet says to divide this number by the fan reading to get fan rpm */ |
140 | #define FAN_PERIOD_TO_RPM(x) ((90000 * 60) / (x)) | |
141 | #define FAN_RPM_TO_PERIOD FAN_PERIOD_TO_RPM | |
142 | #define FAN_PERIOD_INVALID 65535 | |
143 | #define FAN_DATA_VALID(x) ((x) && (x) != FAN_PERIOD_INVALID) | |
144 | ||
145 | struct adt7470_data { | |
30485776 | 146 | struct i2c_client *client; |
6f9703d0 DW |
147 | struct mutex lock; |
148 | char sensors_valid; | |
149 | char limits_valid; | |
150 | unsigned long sensors_last_updated; /* In jiffies */ | |
151 | unsigned long limits_last_updated; /* In jiffies */ | |
152 | ||
2f22d5df | 153 | int num_temp_sensors; /* -1 = probe */ |
89fac11c | 154 | int temperatures_probed; |
2f22d5df | 155 | |
6f9703d0 DW |
156 | s8 temp[ADT7470_TEMP_COUNT]; |
157 | s8 temp_min[ADT7470_TEMP_COUNT]; | |
158 | s8 temp_max[ADT7470_TEMP_COUNT]; | |
159 | u16 fan[ADT7470_FAN_COUNT]; | |
160 | u16 fan_min[ADT7470_FAN_COUNT]; | |
161 | u16 fan_max[ADT7470_FAN_COUNT]; | |
fe03f28c DW |
162 | u16 alarm; |
163 | u16 alarms_mask; | |
6f9703d0 DW |
164 | u8 force_pwm_max; |
165 | u8 pwm[ADT7470_PWM_COUNT]; | |
166 | u8 pwm_max[ADT7470_PWM_COUNT]; | |
167 | u8 pwm_automatic[ADT7470_PWM_COUNT]; | |
168 | u8 pwm_min[ADT7470_PWM_COUNT]; | |
169 | s8 pwm_tmin[ADT7470_PWM_COUNT]; | |
170 | u8 pwm_auto_temp[ADT7470_PWM_COUNT]; | |
89fac11c DW |
171 | |
172 | struct task_struct *auto_update; | |
173 | struct completion auto_update_stop; | |
174 | unsigned int auto_update_interval; | |
6f9703d0 DW |
175 | }; |
176 | ||
6f9703d0 DW |
177 | /* |
178 | * 16-bit registers on the ADT7470 are low-byte first. The data sheet says | |
179 | * that the low byte must be read before the high byte. | |
180 | */ | |
181 | static inline int adt7470_read_word_data(struct i2c_client *client, u8 reg) | |
182 | { | |
183 | u16 foo; | |
184 | foo = i2c_smbus_read_byte_data(client, reg); | |
185 | foo |= ((u16)i2c_smbus_read_byte_data(client, reg + 1) << 8); | |
186 | return foo; | |
187 | } | |
188 | ||
189 | static inline int adt7470_write_word_data(struct i2c_client *client, u8 reg, | |
190 | u16 value) | |
191 | { | |
192 | return i2c_smbus_write_byte_data(client, reg, value & 0xFF) | |
93d783bc | 193 | || i2c_smbus_write_byte_data(client, reg + 1, value >> 8); |
6f9703d0 DW |
194 | } |
195 | ||
89fac11c DW |
196 | /* Probe for temperature sensors. Assumes lock is held */ |
197 | static int adt7470_read_temperatures(struct i2c_client *client, | |
198 | struct adt7470_data *data) | |
6f9703d0 | 199 | { |
89fac11c | 200 | unsigned long res; |
6f9703d0 | 201 | int i; |
89fac11c | 202 | u8 cfg, pwm[4], pwm_cfg[2]; |
6f9703d0 | 203 | |
2e75a4b7 DW |
204 | /* save pwm[1-4] config register */ |
205 | pwm_cfg[0] = i2c_smbus_read_byte_data(client, ADT7470_REG_PWM_CFG(0)); | |
206 | pwm_cfg[1] = i2c_smbus_read_byte_data(client, ADT7470_REG_PWM_CFG(2)); | |
207 | ||
208 | /* set manual pwm to whatever it is set to now */ | |
209 | for (i = 0; i < ADT7470_FAN_COUNT; i++) | |
210 | pwm[i] = i2c_smbus_read_byte_data(client, ADT7470_REG_PWM(i)); | |
211 | ||
212 | /* put pwm in manual mode */ | |
213 | i2c_smbus_write_byte_data(client, ADT7470_REG_PWM_CFG(0), | |
214 | pwm_cfg[0] & ~(ADT7470_PWM_AUTO_MASK)); | |
215 | i2c_smbus_write_byte_data(client, ADT7470_REG_PWM_CFG(2), | |
216 | pwm_cfg[1] & ~(ADT7470_PWM_AUTO_MASK)); | |
217 | ||
218 | /* write pwm control to whatever it was */ | |
219 | for (i = 0; i < ADT7470_FAN_COUNT; i++) | |
220 | i2c_smbus_write_byte_data(client, ADT7470_REG_PWM(i), pwm[i]); | |
221 | ||
6f9703d0 DW |
222 | /* start reading temperature sensors */ |
223 | cfg = i2c_smbus_read_byte_data(client, ADT7470_REG_CFG); | |
224 | cfg |= 0x80; | |
225 | i2c_smbus_write_byte_data(client, ADT7470_REG_CFG, cfg); | |
226 | ||
2f22d5df | 227 | /* Delay is 200ms * number of temp sensors. */ |
89fac11c DW |
228 | res = msleep_interruptible((data->num_temp_sensors >= 0 ? |
229 | data->num_temp_sensors * 200 : | |
230 | TEMP_COLLECTION_TIME)); | |
6f9703d0 DW |
231 | |
232 | /* done reading temperature sensors */ | |
233 | cfg = i2c_smbus_read_byte_data(client, ADT7470_REG_CFG); | |
234 | cfg &= ~0x80; | |
235 | i2c_smbus_write_byte_data(client, ADT7470_REG_CFG, cfg); | |
236 | ||
2e75a4b7 DW |
237 | /* restore pwm[1-4] config registers */ |
238 | i2c_smbus_write_byte_data(client, ADT7470_REG_PWM_CFG(0), pwm_cfg[0]); | |
239 | i2c_smbus_write_byte_data(client, ADT7470_REG_PWM_CFG(2), pwm_cfg[1]); | |
240 | ||
89fac11c | 241 | if (res) { |
2e991201 | 242 | pr_err("ha ha, interrupted\n"); |
89fac11c DW |
243 | return -EAGAIN; |
244 | } | |
245 | ||
246 | /* Only count fans if we have to */ | |
247 | if (data->num_temp_sensors >= 0) | |
248 | return 0; | |
249 | ||
250 | for (i = 0; i < ADT7470_TEMP_COUNT; i++) { | |
6f9703d0 DW |
251 | data->temp[i] = i2c_smbus_read_byte_data(client, |
252 | ADT7470_TEMP_REG(i)); | |
89fac11c DW |
253 | if (data->temp[i]) |
254 | data->num_temp_sensors = i + 1; | |
255 | } | |
256 | data->temperatures_probed = 1; | |
257 | return 0; | |
258 | } | |
6f9703d0 | 259 | |
89fac11c DW |
260 | static int adt7470_update_thread(void *p) |
261 | { | |
262 | struct i2c_client *client = p; | |
263 | struct adt7470_data *data = i2c_get_clientdata(client); | |
264 | ||
265 | while (!kthread_should_stop()) { | |
266 | mutex_lock(&data->lock); | |
267 | adt7470_read_temperatures(client, data); | |
268 | mutex_unlock(&data->lock); | |
269 | if (kthread_should_stop()) | |
270 | break; | |
271 | msleep_interruptible(data->auto_update_interval); | |
272 | } | |
273 | ||
274 | complete_all(&data->auto_update_stop); | |
275 | return 0; | |
276 | } | |
277 | ||
278 | static struct adt7470_data *adt7470_update_device(struct device *dev) | |
279 | { | |
30485776 AL |
280 | struct adt7470_data *data = dev_get_drvdata(dev); |
281 | struct i2c_client *client = data->client; | |
89fac11c DW |
282 | unsigned long local_jiffies = jiffies; |
283 | u8 cfg; | |
284 | int i; | |
285 | int need_sensors = 1; | |
286 | int need_limits = 1; | |
287 | ||
288 | /* | |
289 | * Figure out if we need to update the shadow registers. | |
290 | * Lockless means that we may occasionally report out of | |
291 | * date data. | |
292 | */ | |
293 | if (time_before(local_jiffies, data->sensors_last_updated + | |
294 | SENSOR_REFRESH_INTERVAL) && | |
295 | data->sensors_valid) | |
296 | need_sensors = 0; | |
297 | ||
298 | if (time_before(local_jiffies, data->limits_last_updated + | |
299 | LIMIT_REFRESH_INTERVAL) && | |
300 | data->limits_valid) | |
301 | need_limits = 0; | |
302 | ||
303 | if (!need_sensors && !need_limits) | |
304 | return data; | |
305 | ||
306 | mutex_lock(&data->lock); | |
307 | if (!need_sensors) | |
308 | goto no_sensor_update; | |
309 | ||
310 | if (!data->temperatures_probed) | |
311 | adt7470_read_temperatures(client, data); | |
312 | else | |
2f22d5df | 313 | for (i = 0; i < ADT7470_TEMP_COUNT; i++) |
89fac11c DW |
314 | data->temp[i] = i2c_smbus_read_byte_data(client, |
315 | ADT7470_TEMP_REG(i)); | |
2f22d5df | 316 | |
6f9703d0 DW |
317 | for (i = 0; i < ADT7470_FAN_COUNT; i++) |
318 | data->fan[i] = adt7470_read_word_data(client, | |
319 | ADT7470_REG_FAN(i)); | |
320 | ||
321 | for (i = 0; i < ADT7470_PWM_COUNT; i++) { | |
322 | int reg; | |
323 | int reg_mask; | |
324 | ||
325 | data->pwm[i] = i2c_smbus_read_byte_data(client, | |
326 | ADT7470_REG_PWM(i)); | |
327 | ||
328 | if (i % 2) | |
329 | reg_mask = ADT7470_PWM2_AUTO_MASK; | |
330 | else | |
331 | reg_mask = ADT7470_PWM1_AUTO_MASK; | |
332 | ||
333 | reg = ADT7470_REG_PWM_CFG(i); | |
334 | if (i2c_smbus_read_byte_data(client, reg) & reg_mask) | |
335 | data->pwm_automatic[i] = 1; | |
336 | else | |
337 | data->pwm_automatic[i] = 0; | |
338 | ||
339 | reg = ADT7470_REG_PWM_AUTO_TEMP(i); | |
340 | cfg = i2c_smbus_read_byte_data(client, reg); | |
341 | if (!(i % 2)) | |
342 | data->pwm_auto_temp[i] = cfg >> 4; | |
343 | else | |
344 | data->pwm_auto_temp[i] = cfg & 0xF; | |
345 | } | |
346 | ||
347 | if (i2c_smbus_read_byte_data(client, ADT7470_REG_CFG) & | |
348 | ADT7470_FSPD_MASK) | |
349 | data->force_pwm_max = 1; | |
350 | else | |
351 | data->force_pwm_max = 0; | |
352 | ||
fe03f28c DW |
353 | data->alarm = i2c_smbus_read_byte_data(client, ADT7470_REG_ALARM1); |
354 | if (data->alarm & ADT7470_OOL_ALARM) | |
355 | data->alarm |= ALARM2(i2c_smbus_read_byte_data(client, | |
356 | ADT7470_REG_ALARM2)); | |
6f9703d0 DW |
357 | data->alarms_mask = adt7470_read_word_data(client, |
358 | ADT7470_REG_ALARM1_MASK); | |
359 | ||
360 | data->sensors_last_updated = local_jiffies; | |
361 | data->sensors_valid = 1; | |
362 | ||
363 | no_sensor_update: | |
89fac11c | 364 | if (!need_limits) |
6f9703d0 DW |
365 | goto out; |
366 | ||
367 | for (i = 0; i < ADT7470_TEMP_COUNT; i++) { | |
368 | data->temp_min[i] = i2c_smbus_read_byte_data(client, | |
369 | ADT7470_TEMP_MIN_REG(i)); | |
370 | data->temp_max[i] = i2c_smbus_read_byte_data(client, | |
371 | ADT7470_TEMP_MAX_REG(i)); | |
372 | } | |
373 | ||
374 | for (i = 0; i < ADT7470_FAN_COUNT; i++) { | |
375 | data->fan_min[i] = adt7470_read_word_data(client, | |
376 | ADT7470_REG_FAN_MIN(i)); | |
377 | data->fan_max[i] = adt7470_read_word_data(client, | |
378 | ADT7470_REG_FAN_MAX(i)); | |
379 | } | |
380 | ||
381 | for (i = 0; i < ADT7470_PWM_COUNT; i++) { | |
382 | data->pwm_max[i] = i2c_smbus_read_byte_data(client, | |
383 | ADT7470_REG_PWM_MAX(i)); | |
384 | data->pwm_min[i] = i2c_smbus_read_byte_data(client, | |
385 | ADT7470_REG_PWM_MIN(i)); | |
386 | data->pwm_tmin[i] = i2c_smbus_read_byte_data(client, | |
387 | ADT7470_REG_PWM_TMIN(i)); | |
388 | } | |
389 | ||
390 | data->limits_last_updated = local_jiffies; | |
391 | data->limits_valid = 1; | |
392 | ||
393 | out: | |
394 | mutex_unlock(&data->lock); | |
395 | return data; | |
396 | } | |
397 | ||
89fac11c DW |
398 | static ssize_t show_auto_update_interval(struct device *dev, |
399 | struct device_attribute *devattr, | |
400 | char *buf) | |
401 | { | |
402 | struct adt7470_data *data = adt7470_update_device(dev); | |
403 | return sprintf(buf, "%d\n", data->auto_update_interval); | |
404 | } | |
405 | ||
406 | static ssize_t set_auto_update_interval(struct device *dev, | |
407 | struct device_attribute *devattr, | |
408 | const char *buf, | |
409 | size_t count) | |
410 | { | |
30485776 | 411 | struct adt7470_data *data = dev_get_drvdata(dev); |
89fac11c DW |
412 | long temp; |
413 | ||
179c4fdb | 414 | if (kstrtol(buf, 10, &temp)) |
89fac11c DW |
415 | return -EINVAL; |
416 | ||
2a844c14 | 417 | temp = clamp_val(temp, 0, 60000); |
89fac11c DW |
418 | |
419 | mutex_lock(&data->lock); | |
420 | data->auto_update_interval = temp; | |
421 | mutex_unlock(&data->lock); | |
422 | ||
423 | return count; | |
424 | } | |
425 | ||
2f22d5df DW |
426 | static ssize_t show_num_temp_sensors(struct device *dev, |
427 | struct device_attribute *devattr, | |
428 | char *buf) | |
429 | { | |
430 | struct adt7470_data *data = adt7470_update_device(dev); | |
431 | return sprintf(buf, "%d\n", data->num_temp_sensors); | |
432 | } | |
433 | ||
434 | static ssize_t set_num_temp_sensors(struct device *dev, | |
435 | struct device_attribute *devattr, | |
436 | const char *buf, | |
437 | size_t count) | |
438 | { | |
30485776 | 439 | struct adt7470_data *data = dev_get_drvdata(dev); |
2f22d5df DW |
440 | long temp; |
441 | ||
179c4fdb | 442 | if (kstrtol(buf, 10, &temp)) |
2f22d5df DW |
443 | return -EINVAL; |
444 | ||
2a844c14 | 445 | temp = clamp_val(temp, -1, 10); |
2f22d5df DW |
446 | |
447 | mutex_lock(&data->lock); | |
448 | data->num_temp_sensors = temp; | |
89fac11c DW |
449 | if (temp < 0) |
450 | data->temperatures_probed = 0; | |
2f22d5df DW |
451 | mutex_unlock(&data->lock); |
452 | ||
453 | return count; | |
454 | } | |
455 | ||
6f9703d0 DW |
456 | static ssize_t show_temp_min(struct device *dev, |
457 | struct device_attribute *devattr, | |
458 | char *buf) | |
459 | { | |
460 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
461 | struct adt7470_data *data = adt7470_update_device(dev); | |
462 | return sprintf(buf, "%d\n", 1000 * data->temp_min[attr->index]); | |
463 | } | |
464 | ||
465 | static ssize_t set_temp_min(struct device *dev, | |
466 | struct device_attribute *devattr, | |
467 | const char *buf, | |
468 | size_t count) | |
469 | { | |
470 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
30485776 AL |
471 | struct adt7470_data *data = dev_get_drvdata(dev); |
472 | struct i2c_client *client = data->client; | |
05a9bd46 DW |
473 | long temp; |
474 | ||
179c4fdb | 475 | if (kstrtol(buf, 10, &temp)) |
05a9bd46 DW |
476 | return -EINVAL; |
477 | ||
8f8c1fb0 | 478 | temp = DIV_ROUND_CLOSEST(temp, 1000); |
de12d6f4 | 479 | temp = clamp_val(temp, -128, 127); |
6f9703d0 DW |
480 | |
481 | mutex_lock(&data->lock); | |
482 | data->temp_min[attr->index] = temp; | |
483 | i2c_smbus_write_byte_data(client, ADT7470_TEMP_MIN_REG(attr->index), | |
484 | temp); | |
485 | mutex_unlock(&data->lock); | |
486 | ||
487 | return count; | |
488 | } | |
489 | ||
490 | static ssize_t show_temp_max(struct device *dev, | |
491 | struct device_attribute *devattr, | |
492 | char *buf) | |
493 | { | |
494 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
495 | struct adt7470_data *data = adt7470_update_device(dev); | |
496 | return sprintf(buf, "%d\n", 1000 * data->temp_max[attr->index]); | |
497 | } | |
498 | ||
499 | static ssize_t set_temp_max(struct device *dev, | |
500 | struct device_attribute *devattr, | |
501 | const char *buf, | |
502 | size_t count) | |
503 | { | |
504 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
30485776 AL |
505 | struct adt7470_data *data = dev_get_drvdata(dev); |
506 | struct i2c_client *client = data->client; | |
05a9bd46 DW |
507 | long temp; |
508 | ||
179c4fdb | 509 | if (kstrtol(buf, 10, &temp)) |
05a9bd46 DW |
510 | return -EINVAL; |
511 | ||
8f8c1fb0 | 512 | temp = DIV_ROUND_CLOSEST(temp, 1000); |
de12d6f4 | 513 | temp = clamp_val(temp, -128, 127); |
6f9703d0 DW |
514 | |
515 | mutex_lock(&data->lock); | |
516 | data->temp_max[attr->index] = temp; | |
517 | i2c_smbus_write_byte_data(client, ADT7470_TEMP_MAX_REG(attr->index), | |
518 | temp); | |
519 | mutex_unlock(&data->lock); | |
520 | ||
521 | return count; | |
522 | } | |
523 | ||
524 | static ssize_t show_temp(struct device *dev, struct device_attribute *devattr, | |
525 | char *buf) | |
526 | { | |
527 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
528 | struct adt7470_data *data = adt7470_update_device(dev); | |
529 | return sprintf(buf, "%d\n", 1000 * data->temp[attr->index]); | |
530 | } | |
531 | ||
fe03f28c | 532 | static ssize_t show_alarm_mask(struct device *dev, |
6f9703d0 DW |
533 | struct device_attribute *devattr, |
534 | char *buf) | |
535 | { | |
6f9703d0 DW |
536 | struct adt7470_data *data = adt7470_update_device(dev); |
537 | ||
fe03f28c | 538 | return sprintf(buf, "%x\n", data->alarms_mask); |
6f9703d0 DW |
539 | } |
540 | ||
541 | static ssize_t show_fan_max(struct device *dev, | |
542 | struct device_attribute *devattr, | |
543 | char *buf) | |
544 | { | |
545 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
546 | struct adt7470_data *data = adt7470_update_device(dev); | |
547 | ||
548 | if (FAN_DATA_VALID(data->fan_max[attr->index])) | |
549 | return sprintf(buf, "%d\n", | |
550 | FAN_PERIOD_TO_RPM(data->fan_max[attr->index])); | |
551 | else | |
552 | return sprintf(buf, "0\n"); | |
553 | } | |
554 | ||
555 | static ssize_t set_fan_max(struct device *dev, | |
556 | struct device_attribute *devattr, | |
557 | const char *buf, size_t count) | |
558 | { | |
559 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
30485776 AL |
560 | struct adt7470_data *data = dev_get_drvdata(dev); |
561 | struct i2c_client *client = data->client; | |
05a9bd46 | 562 | long temp; |
6f9703d0 | 563 | |
179c4fdb | 564 | if (kstrtol(buf, 10, &temp) || !temp) |
6f9703d0 | 565 | return -EINVAL; |
05a9bd46 | 566 | |
6f9703d0 | 567 | temp = FAN_RPM_TO_PERIOD(temp); |
2a844c14 | 568 | temp = clamp_val(temp, 1, 65534); |
6f9703d0 DW |
569 | |
570 | mutex_lock(&data->lock); | |
571 | data->fan_max[attr->index] = temp; | |
572 | adt7470_write_word_data(client, ADT7470_REG_FAN_MAX(attr->index), temp); | |
573 | mutex_unlock(&data->lock); | |
574 | ||
575 | return count; | |
576 | } | |
577 | ||
578 | static ssize_t show_fan_min(struct device *dev, | |
579 | struct device_attribute *devattr, | |
580 | char *buf) | |
581 | { | |
582 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
583 | struct adt7470_data *data = adt7470_update_device(dev); | |
584 | ||
585 | if (FAN_DATA_VALID(data->fan_min[attr->index])) | |
586 | return sprintf(buf, "%d\n", | |
587 | FAN_PERIOD_TO_RPM(data->fan_min[attr->index])); | |
588 | else | |
589 | return sprintf(buf, "0\n"); | |
590 | } | |
591 | ||
592 | static ssize_t set_fan_min(struct device *dev, | |
593 | struct device_attribute *devattr, | |
594 | const char *buf, size_t count) | |
595 | { | |
596 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
30485776 AL |
597 | struct adt7470_data *data = dev_get_drvdata(dev); |
598 | struct i2c_client *client = data->client; | |
05a9bd46 | 599 | long temp; |
6f9703d0 | 600 | |
179c4fdb | 601 | if (kstrtol(buf, 10, &temp) || !temp) |
6f9703d0 | 602 | return -EINVAL; |
05a9bd46 | 603 | |
6f9703d0 | 604 | temp = FAN_RPM_TO_PERIOD(temp); |
2a844c14 | 605 | temp = clamp_val(temp, 1, 65534); |
6f9703d0 DW |
606 | |
607 | mutex_lock(&data->lock); | |
608 | data->fan_min[attr->index] = temp; | |
609 | adt7470_write_word_data(client, ADT7470_REG_FAN_MIN(attr->index), temp); | |
610 | mutex_unlock(&data->lock); | |
611 | ||
612 | return count; | |
613 | } | |
614 | ||
615 | static ssize_t show_fan(struct device *dev, 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[attr->index])) | |
622 | return sprintf(buf, "%d\n", | |
623 | FAN_PERIOD_TO_RPM(data->fan[attr->index])); | |
624 | else | |
625 | return sprintf(buf, "0\n"); | |
626 | } | |
627 | ||
628 | static ssize_t show_force_pwm_max(struct device *dev, | |
629 | struct device_attribute *devattr, | |
630 | char *buf) | |
631 | { | |
632 | struct adt7470_data *data = adt7470_update_device(dev); | |
633 | return sprintf(buf, "%d\n", data->force_pwm_max); | |
634 | } | |
635 | ||
636 | static ssize_t set_force_pwm_max(struct device *dev, | |
637 | struct device_attribute *devattr, | |
638 | const char *buf, | |
639 | size_t count) | |
640 | { | |
30485776 AL |
641 | struct adt7470_data *data = dev_get_drvdata(dev); |
642 | struct i2c_client *client = data->client; | |
05a9bd46 | 643 | long temp; |
6f9703d0 DW |
644 | u8 reg; |
645 | ||
179c4fdb | 646 | if (kstrtol(buf, 10, &temp)) |
05a9bd46 DW |
647 | return -EINVAL; |
648 | ||
6f9703d0 DW |
649 | mutex_lock(&data->lock); |
650 | data->force_pwm_max = temp; | |
651 | reg = i2c_smbus_read_byte_data(client, ADT7470_REG_CFG); | |
652 | if (temp) | |
653 | reg |= ADT7470_FSPD_MASK; | |
654 | else | |
655 | reg &= ~ADT7470_FSPD_MASK; | |
656 | i2c_smbus_write_byte_data(client, ADT7470_REG_CFG, reg); | |
657 | mutex_unlock(&data->lock); | |
658 | ||
659 | return count; | |
660 | } | |
661 | ||
662 | static ssize_t show_pwm(struct device *dev, struct device_attribute *devattr, | |
663 | char *buf) | |
664 | { | |
665 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
666 | struct adt7470_data *data = adt7470_update_device(dev); | |
667 | return sprintf(buf, "%d\n", data->pwm[attr->index]); | |
668 | } | |
669 | ||
670 | static ssize_t set_pwm(struct device *dev, struct device_attribute *devattr, | |
671 | const char *buf, size_t count) | |
672 | { | |
673 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
30485776 AL |
674 | struct adt7470_data *data = dev_get_drvdata(dev); |
675 | struct i2c_client *client = data->client; | |
05a9bd46 DW |
676 | long temp; |
677 | ||
179c4fdb | 678 | if (kstrtol(buf, 10, &temp)) |
05a9bd46 DW |
679 | return -EINVAL; |
680 | ||
2a844c14 | 681 | temp = clamp_val(temp, 0, 255); |
6f9703d0 DW |
682 | |
683 | mutex_lock(&data->lock); | |
684 | data->pwm[attr->index] = temp; | |
685 | i2c_smbus_write_byte_data(client, ADT7470_REG_PWM(attr->index), temp); | |
686 | mutex_unlock(&data->lock); | |
687 | ||
688 | return count; | |
689 | } | |
690 | ||
691 | static ssize_t show_pwm_max(struct device *dev, | |
692 | struct device_attribute *devattr, | |
693 | char *buf) | |
694 | { | |
695 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
696 | struct adt7470_data *data = adt7470_update_device(dev); | |
697 | return sprintf(buf, "%d\n", data->pwm_max[attr->index]); | |
698 | } | |
699 | ||
700 | static ssize_t set_pwm_max(struct device *dev, | |
701 | struct device_attribute *devattr, | |
702 | const char *buf, | |
703 | size_t count) | |
704 | { | |
705 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
30485776 AL |
706 | struct adt7470_data *data = dev_get_drvdata(dev); |
707 | struct i2c_client *client = data->client; | |
05a9bd46 DW |
708 | long temp; |
709 | ||
179c4fdb | 710 | if (kstrtol(buf, 10, &temp)) |
05a9bd46 DW |
711 | return -EINVAL; |
712 | ||
2a844c14 | 713 | temp = clamp_val(temp, 0, 255); |
6f9703d0 DW |
714 | |
715 | mutex_lock(&data->lock); | |
716 | data->pwm_max[attr->index] = temp; | |
717 | i2c_smbus_write_byte_data(client, ADT7470_REG_PWM_MAX(attr->index), | |
718 | temp); | |
719 | mutex_unlock(&data->lock); | |
720 | ||
721 | return count; | |
722 | } | |
723 | ||
724 | static ssize_t show_pwm_min(struct device *dev, | |
725 | struct device_attribute *devattr, | |
726 | char *buf) | |
727 | { | |
728 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
729 | struct adt7470_data *data = adt7470_update_device(dev); | |
730 | return sprintf(buf, "%d\n", data->pwm_min[attr->index]); | |
731 | } | |
732 | ||
733 | static ssize_t set_pwm_min(struct device *dev, | |
734 | struct device_attribute *devattr, | |
735 | const char *buf, | |
736 | size_t count) | |
737 | { | |
738 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
30485776 AL |
739 | struct adt7470_data *data = dev_get_drvdata(dev); |
740 | struct i2c_client *client = data->client; | |
05a9bd46 DW |
741 | long temp; |
742 | ||
179c4fdb | 743 | if (kstrtol(buf, 10, &temp)) |
05a9bd46 DW |
744 | return -EINVAL; |
745 | ||
2a844c14 | 746 | temp = clamp_val(temp, 0, 255); |
6f9703d0 DW |
747 | |
748 | mutex_lock(&data->lock); | |
749 | data->pwm_min[attr->index] = temp; | |
750 | i2c_smbus_write_byte_data(client, ADT7470_REG_PWM_MIN(attr->index), | |
751 | temp); | |
752 | mutex_unlock(&data->lock); | |
753 | ||
754 | return count; | |
755 | } | |
756 | ||
757 | static ssize_t show_pwm_tmax(struct device *dev, | |
758 | struct device_attribute *devattr, | |
759 | char *buf) | |
760 | { | |
761 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
762 | struct adt7470_data *data = adt7470_update_device(dev); | |
763 | /* the datasheet says that tmax = tmin + 20C */ | |
764 | return sprintf(buf, "%d\n", 1000 * (20 + data->pwm_tmin[attr->index])); | |
765 | } | |
766 | ||
767 | static ssize_t show_pwm_tmin(struct device *dev, | |
768 | struct device_attribute *devattr, | |
769 | char *buf) | |
770 | { | |
771 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
772 | struct adt7470_data *data = adt7470_update_device(dev); | |
773 | return sprintf(buf, "%d\n", 1000 * data->pwm_tmin[attr->index]); | |
774 | } | |
775 | ||
776 | static ssize_t set_pwm_tmin(struct device *dev, | |
777 | struct device_attribute *devattr, | |
778 | const char *buf, | |
779 | size_t count) | |
780 | { | |
781 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
30485776 AL |
782 | struct adt7470_data *data = dev_get_drvdata(dev); |
783 | struct i2c_client *client = data->client; | |
05a9bd46 DW |
784 | long temp; |
785 | ||
179c4fdb | 786 | if (kstrtol(buf, 10, &temp)) |
05a9bd46 DW |
787 | return -EINVAL; |
788 | ||
8f8c1fb0 | 789 | temp = DIV_ROUND_CLOSEST(temp, 1000); |
de12d6f4 | 790 | temp = clamp_val(temp, -128, 127); |
6f9703d0 DW |
791 | |
792 | mutex_lock(&data->lock); | |
793 | data->pwm_tmin[attr->index] = temp; | |
794 | i2c_smbus_write_byte_data(client, ADT7470_REG_PWM_TMIN(attr->index), | |
795 | temp); | |
796 | mutex_unlock(&data->lock); | |
797 | ||
798 | return count; | |
799 | } | |
800 | ||
801 | static ssize_t show_pwm_auto(struct device *dev, | |
802 | struct device_attribute *devattr, | |
803 | char *buf) | |
804 | { | |
805 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
806 | struct adt7470_data *data = adt7470_update_device(dev); | |
807 | return sprintf(buf, "%d\n", 1 + data->pwm_automatic[attr->index]); | |
808 | } | |
809 | ||
810 | static ssize_t set_pwm_auto(struct device *dev, | |
811 | struct device_attribute *devattr, | |
812 | const char *buf, | |
813 | size_t count) | |
814 | { | |
815 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
30485776 AL |
816 | struct adt7470_data *data = dev_get_drvdata(dev); |
817 | struct i2c_client *client = data->client; | |
6f9703d0 DW |
818 | int pwm_auto_reg = ADT7470_REG_PWM_CFG(attr->index); |
819 | int pwm_auto_reg_mask; | |
05a9bd46 | 820 | long temp; |
6f9703d0 DW |
821 | u8 reg; |
822 | ||
179c4fdb | 823 | if (kstrtol(buf, 10, &temp)) |
05a9bd46 DW |
824 | return -EINVAL; |
825 | ||
6f9703d0 DW |
826 | if (attr->index % 2) |
827 | pwm_auto_reg_mask = ADT7470_PWM2_AUTO_MASK; | |
828 | else | |
829 | pwm_auto_reg_mask = ADT7470_PWM1_AUTO_MASK; | |
830 | ||
831 | if (temp != 2 && temp != 1) | |
832 | return -EINVAL; | |
833 | temp--; | |
834 | ||
835 | mutex_lock(&data->lock); | |
836 | data->pwm_automatic[attr->index] = temp; | |
837 | reg = i2c_smbus_read_byte_data(client, pwm_auto_reg); | |
838 | if (temp) | |
839 | reg |= pwm_auto_reg_mask; | |
840 | else | |
841 | reg &= ~pwm_auto_reg_mask; | |
842 | i2c_smbus_write_byte_data(client, pwm_auto_reg, reg); | |
843 | mutex_unlock(&data->lock); | |
844 | ||
845 | return count; | |
846 | } | |
847 | ||
848 | static ssize_t show_pwm_auto_temp(struct device *dev, | |
849 | struct device_attribute *devattr, | |
850 | char *buf) | |
851 | { | |
852 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
853 | struct adt7470_data *data = adt7470_update_device(dev); | |
854 | u8 ctrl = data->pwm_auto_temp[attr->index]; | |
855 | ||
856 | if (ctrl) | |
857 | return sprintf(buf, "%d\n", 1 << (ctrl - 1)); | |
858 | else | |
859 | return sprintf(buf, "%d\n", ADT7470_PWM_ALL_TEMPS); | |
860 | } | |
861 | ||
862 | static int cvt_auto_temp(int input) | |
863 | { | |
864 | if (input == ADT7470_PWM_ALL_TEMPS) | |
865 | return 0; | |
ce9c2f44 | 866 | if (input < 1 || !is_power_of_2(input)) |
6f9703d0 DW |
867 | return -EINVAL; |
868 | return ilog2(input) + 1; | |
869 | } | |
870 | ||
871 | static ssize_t set_pwm_auto_temp(struct device *dev, | |
872 | struct device_attribute *devattr, | |
873 | const char *buf, | |
874 | size_t count) | |
875 | { | |
876 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
30485776 AL |
877 | struct adt7470_data *data = dev_get_drvdata(dev); |
878 | struct i2c_client *client = data->client; | |
6f9703d0 | 879 | int pwm_auto_reg = ADT7470_REG_PWM_AUTO_TEMP(attr->index); |
05a9bd46 | 880 | long temp; |
6f9703d0 DW |
881 | u8 reg; |
882 | ||
179c4fdb | 883 | if (kstrtol(buf, 10, &temp)) |
05a9bd46 DW |
884 | return -EINVAL; |
885 | ||
886 | temp = cvt_auto_temp(temp); | |
6f9703d0 DW |
887 | if (temp < 0) |
888 | return temp; | |
889 | ||
890 | mutex_lock(&data->lock); | |
891 | data->pwm_automatic[attr->index] = temp; | |
892 | reg = i2c_smbus_read_byte_data(client, pwm_auto_reg); | |
893 | ||
894 | if (!(attr->index % 2)) { | |
895 | reg &= 0xF; | |
896 | reg |= (temp << 4) & 0xF0; | |
897 | } else { | |
898 | reg &= 0xF0; | |
899 | reg |= temp & 0xF; | |
900 | } | |
901 | ||
902 | i2c_smbus_write_byte_data(client, pwm_auto_reg, reg); | |
903 | mutex_unlock(&data->lock); | |
904 | ||
905 | return count; | |
906 | } | |
907 | ||
fe03f28c DW |
908 | static ssize_t show_alarm(struct device *dev, |
909 | struct device_attribute *devattr, | |
910 | char *buf) | |
911 | { | |
912 | struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr); | |
913 | struct adt7470_data *data = adt7470_update_device(dev); | |
914 | ||
915 | if (data->alarm & attr->index) | |
916 | return sprintf(buf, "1\n"); | |
917 | else | |
918 | return sprintf(buf, "0\n"); | |
919 | } | |
920 | ||
921 | static DEVICE_ATTR(alarm_mask, S_IRUGO, show_alarm_mask, NULL); | |
2f22d5df DW |
922 | static DEVICE_ATTR(num_temp_sensors, S_IWUSR | S_IRUGO, show_num_temp_sensors, |
923 | set_num_temp_sensors); | |
89fac11c DW |
924 | static DEVICE_ATTR(auto_update_interval, S_IWUSR | S_IRUGO, |
925 | show_auto_update_interval, set_auto_update_interval); | |
6f9703d0 DW |
926 | |
927 | static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, show_temp_max, | |
928 | set_temp_max, 0); | |
929 | static SENSOR_DEVICE_ATTR(temp2_max, S_IWUSR | S_IRUGO, show_temp_max, | |
930 | set_temp_max, 1); | |
931 | static SENSOR_DEVICE_ATTR(temp3_max, S_IWUSR | S_IRUGO, show_temp_max, | |
932 | set_temp_max, 2); | |
933 | static SENSOR_DEVICE_ATTR(temp4_max, S_IWUSR | S_IRUGO, show_temp_max, | |
934 | set_temp_max, 3); | |
935 | static SENSOR_DEVICE_ATTR(temp5_max, S_IWUSR | S_IRUGO, show_temp_max, | |
936 | set_temp_max, 4); | |
937 | static SENSOR_DEVICE_ATTR(temp6_max, S_IWUSR | S_IRUGO, show_temp_max, | |
938 | set_temp_max, 5); | |
939 | static SENSOR_DEVICE_ATTR(temp7_max, S_IWUSR | S_IRUGO, show_temp_max, | |
940 | set_temp_max, 6); | |
941 | static SENSOR_DEVICE_ATTR(temp8_max, S_IWUSR | S_IRUGO, show_temp_max, | |
942 | set_temp_max, 7); | |
943 | static SENSOR_DEVICE_ATTR(temp9_max, S_IWUSR | S_IRUGO, show_temp_max, | |
944 | set_temp_max, 8); | |
945 | static SENSOR_DEVICE_ATTR(temp10_max, S_IWUSR | S_IRUGO, show_temp_max, | |
946 | set_temp_max, 9); | |
947 | ||
948 | static SENSOR_DEVICE_ATTR(temp1_min, S_IWUSR | S_IRUGO, show_temp_min, | |
949 | set_temp_min, 0); | |
950 | static SENSOR_DEVICE_ATTR(temp2_min, S_IWUSR | S_IRUGO, show_temp_min, | |
951 | set_temp_min, 1); | |
952 | static SENSOR_DEVICE_ATTR(temp3_min, S_IWUSR | S_IRUGO, show_temp_min, | |
953 | set_temp_min, 2); | |
954 | static SENSOR_DEVICE_ATTR(temp4_min, S_IWUSR | S_IRUGO, show_temp_min, | |
955 | set_temp_min, 3); | |
956 | static SENSOR_DEVICE_ATTR(temp5_min, S_IWUSR | S_IRUGO, show_temp_min, | |
957 | set_temp_min, 4); | |
958 | static SENSOR_DEVICE_ATTR(temp6_min, S_IWUSR | S_IRUGO, show_temp_min, | |
959 | set_temp_min, 5); | |
960 | static SENSOR_DEVICE_ATTR(temp7_min, S_IWUSR | S_IRUGO, show_temp_min, | |
961 | set_temp_min, 6); | |
962 | static SENSOR_DEVICE_ATTR(temp8_min, S_IWUSR | S_IRUGO, show_temp_min, | |
963 | set_temp_min, 7); | |
964 | static SENSOR_DEVICE_ATTR(temp9_min, S_IWUSR | S_IRUGO, show_temp_min, | |
965 | set_temp_min, 8); | |
966 | static SENSOR_DEVICE_ATTR(temp10_min, S_IWUSR | S_IRUGO, show_temp_min, | |
967 | set_temp_min, 9); | |
968 | ||
969 | static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp, NULL, 0); | |
970 | static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp, NULL, 1); | |
971 | static SENSOR_DEVICE_ATTR(temp3_input, S_IRUGO, show_temp, NULL, 2); | |
972 | static SENSOR_DEVICE_ATTR(temp4_input, S_IRUGO, show_temp, NULL, 3); | |
973 | static SENSOR_DEVICE_ATTR(temp5_input, S_IRUGO, show_temp, NULL, 4); | |
974 | static SENSOR_DEVICE_ATTR(temp6_input, S_IRUGO, show_temp, NULL, 5); | |
975 | static SENSOR_DEVICE_ATTR(temp7_input, S_IRUGO, show_temp, NULL, 6); | |
976 | static SENSOR_DEVICE_ATTR(temp8_input, S_IRUGO, show_temp, NULL, 7); | |
977 | static SENSOR_DEVICE_ATTR(temp9_input, S_IRUGO, show_temp, NULL, 8); | |
978 | static SENSOR_DEVICE_ATTR(temp10_input, S_IRUGO, show_temp, NULL, 9); | |
979 | ||
fe03f28c DW |
980 | static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, |
981 | ADT7470_R1T_ALARM); | |
982 | static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, | |
983 | ADT7470_R2T_ALARM); | |
984 | static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, | |
985 | ADT7470_R3T_ALARM); | |
986 | static SENSOR_DEVICE_ATTR(temp4_alarm, S_IRUGO, show_alarm, NULL, | |
987 | ADT7470_R4T_ALARM); | |
988 | static SENSOR_DEVICE_ATTR(temp5_alarm, S_IRUGO, show_alarm, NULL, | |
989 | ADT7470_R5T_ALARM); | |
990 | static SENSOR_DEVICE_ATTR(temp6_alarm, S_IRUGO, show_alarm, NULL, | |
991 | ADT7470_R6T_ALARM); | |
992 | static SENSOR_DEVICE_ATTR(temp7_alarm, S_IRUGO, show_alarm, NULL, | |
993 | ADT7470_R7T_ALARM); | |
994 | static SENSOR_DEVICE_ATTR(temp8_alarm, S_IRUGO, show_alarm, NULL, | |
995 | ALARM2(ADT7470_R8T_ALARM)); | |
996 | static SENSOR_DEVICE_ATTR(temp9_alarm, S_IRUGO, show_alarm, NULL, | |
997 | ALARM2(ADT7470_R9T_ALARM)); | |
998 | static SENSOR_DEVICE_ATTR(temp10_alarm, S_IRUGO, show_alarm, NULL, | |
999 | ALARM2(ADT7470_R10T_ALARM)); | |
1000 | ||
6f9703d0 DW |
1001 | static SENSOR_DEVICE_ATTR(fan1_max, S_IWUSR | S_IRUGO, show_fan_max, |
1002 | set_fan_max, 0); | |
1003 | static SENSOR_DEVICE_ATTR(fan2_max, S_IWUSR | S_IRUGO, show_fan_max, | |
1004 | set_fan_max, 1); | |
1005 | static SENSOR_DEVICE_ATTR(fan3_max, S_IWUSR | S_IRUGO, show_fan_max, | |
1006 | set_fan_max, 2); | |
1007 | static SENSOR_DEVICE_ATTR(fan4_max, S_IWUSR | S_IRUGO, show_fan_max, | |
1008 | set_fan_max, 3); | |
1009 | ||
1010 | static SENSOR_DEVICE_ATTR(fan1_min, S_IWUSR | S_IRUGO, show_fan_min, | |
1011 | set_fan_min, 0); | |
1012 | static SENSOR_DEVICE_ATTR(fan2_min, S_IWUSR | S_IRUGO, show_fan_min, | |
1013 | set_fan_min, 1); | |
1014 | static SENSOR_DEVICE_ATTR(fan3_min, S_IWUSR | S_IRUGO, show_fan_min, | |
1015 | set_fan_min, 2); | |
1016 | static SENSOR_DEVICE_ATTR(fan4_min, S_IWUSR | S_IRUGO, show_fan_min, | |
1017 | set_fan_min, 3); | |
1018 | ||
1019 | static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0); | |
1020 | static SENSOR_DEVICE_ATTR(fan2_input, S_IRUGO, show_fan, NULL, 1); | |
1021 | static SENSOR_DEVICE_ATTR(fan3_input, S_IRUGO, show_fan, NULL, 2); | |
1022 | static SENSOR_DEVICE_ATTR(fan4_input, S_IRUGO, show_fan, NULL, 3); | |
1023 | ||
fe03f28c DW |
1024 | static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, |
1025 | ALARM2(ADT7470_FAN1_ALARM)); | |
1026 | static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, | |
1027 | ALARM2(ADT7470_FAN2_ALARM)); | |
1028 | static SENSOR_DEVICE_ATTR(fan3_alarm, S_IRUGO, show_alarm, NULL, | |
1029 | ALARM2(ADT7470_FAN3_ALARM)); | |
1030 | static SENSOR_DEVICE_ATTR(fan4_alarm, S_IRUGO, show_alarm, NULL, | |
1031 | ALARM2(ADT7470_FAN4_ALARM)); | |
1032 | ||
6f9703d0 DW |
1033 | static SENSOR_DEVICE_ATTR(force_pwm_max, S_IWUSR | S_IRUGO, |
1034 | show_force_pwm_max, set_force_pwm_max, 0); | |
1035 | ||
1036 | static SENSOR_DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 0); | |
1037 | static SENSOR_DEVICE_ATTR(pwm2, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 1); | |
1038 | static SENSOR_DEVICE_ATTR(pwm3, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 2); | |
1039 | static SENSOR_DEVICE_ATTR(pwm4, S_IWUSR | S_IRUGO, show_pwm, set_pwm, 3); | |
1040 | ||
1041 | static SENSOR_DEVICE_ATTR(pwm1_auto_point1_pwm, S_IWUSR | S_IRUGO, | |
1042 | show_pwm_min, set_pwm_min, 0); | |
1043 | static SENSOR_DEVICE_ATTR(pwm2_auto_point1_pwm, S_IWUSR | S_IRUGO, | |
1044 | show_pwm_min, set_pwm_min, 1); | |
1045 | static SENSOR_DEVICE_ATTR(pwm3_auto_point1_pwm, S_IWUSR | S_IRUGO, | |
1046 | show_pwm_min, set_pwm_min, 2); | |
1047 | static SENSOR_DEVICE_ATTR(pwm4_auto_point1_pwm, S_IWUSR | S_IRUGO, | |
1048 | show_pwm_min, set_pwm_min, 3); | |
1049 | ||
1050 | static SENSOR_DEVICE_ATTR(pwm1_auto_point2_pwm, S_IWUSR | S_IRUGO, | |
1051 | show_pwm_max, set_pwm_max, 0); | |
1052 | static SENSOR_DEVICE_ATTR(pwm2_auto_point2_pwm, S_IWUSR | S_IRUGO, | |
1053 | show_pwm_max, set_pwm_max, 1); | |
1054 | static SENSOR_DEVICE_ATTR(pwm3_auto_point2_pwm, S_IWUSR | S_IRUGO, | |
1055 | show_pwm_max, set_pwm_max, 2); | |
1056 | static SENSOR_DEVICE_ATTR(pwm4_auto_point2_pwm, S_IWUSR | S_IRUGO, | |
1057 | show_pwm_max, set_pwm_max, 3); | |
1058 | ||
1059 | static SENSOR_DEVICE_ATTR(pwm1_auto_point1_temp, S_IWUSR | S_IRUGO, | |
1060 | show_pwm_tmin, set_pwm_tmin, 0); | |
1061 | static SENSOR_DEVICE_ATTR(pwm2_auto_point1_temp, S_IWUSR | S_IRUGO, | |
1062 | show_pwm_tmin, set_pwm_tmin, 1); | |
1063 | static SENSOR_DEVICE_ATTR(pwm3_auto_point1_temp, S_IWUSR | S_IRUGO, | |
1064 | show_pwm_tmin, set_pwm_tmin, 2); | |
1065 | static SENSOR_DEVICE_ATTR(pwm4_auto_point1_temp, S_IWUSR | S_IRUGO, | |
1066 | show_pwm_tmin, set_pwm_tmin, 3); | |
1067 | ||
1068 | static SENSOR_DEVICE_ATTR(pwm1_auto_point2_temp, S_IRUGO, show_pwm_tmax, | |
1069 | NULL, 0); | |
1070 | static SENSOR_DEVICE_ATTR(pwm2_auto_point2_temp, S_IRUGO, show_pwm_tmax, | |
1071 | NULL, 1); | |
1072 | static SENSOR_DEVICE_ATTR(pwm3_auto_point2_temp, S_IRUGO, show_pwm_tmax, | |
1073 | NULL, 2); | |
1074 | static SENSOR_DEVICE_ATTR(pwm4_auto_point2_temp, S_IRUGO, show_pwm_tmax, | |
1075 | NULL, 3); | |
1076 | ||
1077 | static SENSOR_DEVICE_ATTR(pwm1_enable, S_IWUSR | S_IRUGO, show_pwm_auto, | |
1078 | set_pwm_auto, 0); | |
1079 | static SENSOR_DEVICE_ATTR(pwm2_enable, S_IWUSR | S_IRUGO, show_pwm_auto, | |
1080 | set_pwm_auto, 1); | |
1081 | static SENSOR_DEVICE_ATTR(pwm3_enable, S_IWUSR | S_IRUGO, show_pwm_auto, | |
1082 | set_pwm_auto, 2); | |
1083 | static SENSOR_DEVICE_ATTR(pwm4_enable, S_IWUSR | S_IRUGO, show_pwm_auto, | |
1084 | set_pwm_auto, 3); | |
1085 | ||
1086 | static SENSOR_DEVICE_ATTR(pwm1_auto_channels_temp, S_IWUSR | S_IRUGO, | |
1087 | show_pwm_auto_temp, set_pwm_auto_temp, 0); | |
1088 | static SENSOR_DEVICE_ATTR(pwm2_auto_channels_temp, S_IWUSR | S_IRUGO, | |
1089 | show_pwm_auto_temp, set_pwm_auto_temp, 1); | |
1090 | static SENSOR_DEVICE_ATTR(pwm3_auto_channels_temp, S_IWUSR | S_IRUGO, | |
1091 | show_pwm_auto_temp, set_pwm_auto_temp, 2); | |
1092 | static SENSOR_DEVICE_ATTR(pwm4_auto_channels_temp, S_IWUSR | S_IRUGO, | |
1093 | show_pwm_auto_temp, set_pwm_auto_temp, 3); | |
1094 | ||
30485776 | 1095 | static struct attribute *adt7470_attrs[] = { |
fe03f28c | 1096 | &dev_attr_alarm_mask.attr, |
2f22d5df | 1097 | &dev_attr_num_temp_sensors.attr, |
89fac11c | 1098 | &dev_attr_auto_update_interval.attr, |
6f9703d0 DW |
1099 | &sensor_dev_attr_temp1_max.dev_attr.attr, |
1100 | &sensor_dev_attr_temp2_max.dev_attr.attr, | |
1101 | &sensor_dev_attr_temp3_max.dev_attr.attr, | |
1102 | &sensor_dev_attr_temp4_max.dev_attr.attr, | |
1103 | &sensor_dev_attr_temp5_max.dev_attr.attr, | |
1104 | &sensor_dev_attr_temp6_max.dev_attr.attr, | |
1105 | &sensor_dev_attr_temp7_max.dev_attr.attr, | |
1106 | &sensor_dev_attr_temp8_max.dev_attr.attr, | |
1107 | &sensor_dev_attr_temp9_max.dev_attr.attr, | |
1108 | &sensor_dev_attr_temp10_max.dev_attr.attr, | |
1109 | &sensor_dev_attr_temp1_min.dev_attr.attr, | |
1110 | &sensor_dev_attr_temp2_min.dev_attr.attr, | |
1111 | &sensor_dev_attr_temp3_min.dev_attr.attr, | |
1112 | &sensor_dev_attr_temp4_min.dev_attr.attr, | |
1113 | &sensor_dev_attr_temp5_min.dev_attr.attr, | |
1114 | &sensor_dev_attr_temp6_min.dev_attr.attr, | |
1115 | &sensor_dev_attr_temp7_min.dev_attr.attr, | |
1116 | &sensor_dev_attr_temp8_min.dev_attr.attr, | |
1117 | &sensor_dev_attr_temp9_min.dev_attr.attr, | |
1118 | &sensor_dev_attr_temp10_min.dev_attr.attr, | |
1119 | &sensor_dev_attr_temp1_input.dev_attr.attr, | |
1120 | &sensor_dev_attr_temp2_input.dev_attr.attr, | |
1121 | &sensor_dev_attr_temp3_input.dev_attr.attr, | |
1122 | &sensor_dev_attr_temp4_input.dev_attr.attr, | |
1123 | &sensor_dev_attr_temp5_input.dev_attr.attr, | |
1124 | &sensor_dev_attr_temp6_input.dev_attr.attr, | |
1125 | &sensor_dev_attr_temp7_input.dev_attr.attr, | |
1126 | &sensor_dev_attr_temp8_input.dev_attr.attr, | |
1127 | &sensor_dev_attr_temp9_input.dev_attr.attr, | |
1128 | &sensor_dev_attr_temp10_input.dev_attr.attr, | |
fe03f28c DW |
1129 | &sensor_dev_attr_temp1_alarm.dev_attr.attr, |
1130 | &sensor_dev_attr_temp2_alarm.dev_attr.attr, | |
1131 | &sensor_dev_attr_temp3_alarm.dev_attr.attr, | |
1132 | &sensor_dev_attr_temp4_alarm.dev_attr.attr, | |
1133 | &sensor_dev_attr_temp5_alarm.dev_attr.attr, | |
1134 | &sensor_dev_attr_temp6_alarm.dev_attr.attr, | |
1135 | &sensor_dev_attr_temp7_alarm.dev_attr.attr, | |
1136 | &sensor_dev_attr_temp8_alarm.dev_attr.attr, | |
1137 | &sensor_dev_attr_temp9_alarm.dev_attr.attr, | |
1138 | &sensor_dev_attr_temp10_alarm.dev_attr.attr, | |
6f9703d0 DW |
1139 | &sensor_dev_attr_fan1_max.dev_attr.attr, |
1140 | &sensor_dev_attr_fan2_max.dev_attr.attr, | |
1141 | &sensor_dev_attr_fan3_max.dev_attr.attr, | |
1142 | &sensor_dev_attr_fan4_max.dev_attr.attr, | |
1143 | &sensor_dev_attr_fan1_min.dev_attr.attr, | |
1144 | &sensor_dev_attr_fan2_min.dev_attr.attr, | |
1145 | &sensor_dev_attr_fan3_min.dev_attr.attr, | |
1146 | &sensor_dev_attr_fan4_min.dev_attr.attr, | |
1147 | &sensor_dev_attr_fan1_input.dev_attr.attr, | |
1148 | &sensor_dev_attr_fan2_input.dev_attr.attr, | |
1149 | &sensor_dev_attr_fan3_input.dev_attr.attr, | |
1150 | &sensor_dev_attr_fan4_input.dev_attr.attr, | |
fe03f28c DW |
1151 | &sensor_dev_attr_fan1_alarm.dev_attr.attr, |
1152 | &sensor_dev_attr_fan2_alarm.dev_attr.attr, | |
1153 | &sensor_dev_attr_fan3_alarm.dev_attr.attr, | |
1154 | &sensor_dev_attr_fan4_alarm.dev_attr.attr, | |
6f9703d0 DW |
1155 | &sensor_dev_attr_force_pwm_max.dev_attr.attr, |
1156 | &sensor_dev_attr_pwm1.dev_attr.attr, | |
1157 | &sensor_dev_attr_pwm2.dev_attr.attr, | |
1158 | &sensor_dev_attr_pwm3.dev_attr.attr, | |
1159 | &sensor_dev_attr_pwm4.dev_attr.attr, | |
1160 | &sensor_dev_attr_pwm1_auto_point1_pwm.dev_attr.attr, | |
1161 | &sensor_dev_attr_pwm2_auto_point1_pwm.dev_attr.attr, | |
1162 | &sensor_dev_attr_pwm3_auto_point1_pwm.dev_attr.attr, | |
1163 | &sensor_dev_attr_pwm4_auto_point1_pwm.dev_attr.attr, | |
1164 | &sensor_dev_attr_pwm1_auto_point2_pwm.dev_attr.attr, | |
1165 | &sensor_dev_attr_pwm2_auto_point2_pwm.dev_attr.attr, | |
1166 | &sensor_dev_attr_pwm3_auto_point2_pwm.dev_attr.attr, | |
1167 | &sensor_dev_attr_pwm4_auto_point2_pwm.dev_attr.attr, | |
1168 | &sensor_dev_attr_pwm1_auto_point1_temp.dev_attr.attr, | |
1169 | &sensor_dev_attr_pwm2_auto_point1_temp.dev_attr.attr, | |
1170 | &sensor_dev_attr_pwm3_auto_point1_temp.dev_attr.attr, | |
1171 | &sensor_dev_attr_pwm4_auto_point1_temp.dev_attr.attr, | |
1172 | &sensor_dev_attr_pwm1_auto_point2_temp.dev_attr.attr, | |
1173 | &sensor_dev_attr_pwm2_auto_point2_temp.dev_attr.attr, | |
1174 | &sensor_dev_attr_pwm3_auto_point2_temp.dev_attr.attr, | |
1175 | &sensor_dev_attr_pwm4_auto_point2_temp.dev_attr.attr, | |
1176 | &sensor_dev_attr_pwm1_enable.dev_attr.attr, | |
1177 | &sensor_dev_attr_pwm2_enable.dev_attr.attr, | |
1178 | &sensor_dev_attr_pwm3_enable.dev_attr.attr, | |
1179 | &sensor_dev_attr_pwm4_enable.dev_attr.attr, | |
1180 | &sensor_dev_attr_pwm1_auto_channels_temp.dev_attr.attr, | |
1181 | &sensor_dev_attr_pwm2_auto_channels_temp.dev_attr.attr, | |
1182 | &sensor_dev_attr_pwm3_auto_channels_temp.dev_attr.attr, | |
1183 | &sensor_dev_attr_pwm4_auto_channels_temp.dev_attr.attr, | |
1184 | NULL | |
1185 | }; | |
1186 | ||
30485776 AL |
1187 | ATTRIBUTE_GROUPS(adt7470); |
1188 | ||
008f1ca5 | 1189 | /* Return 0 if detection is successful, -ENODEV otherwise */ |
310ec792 | 1190 | static int adt7470_detect(struct i2c_client *client, |
008f1ca5 | 1191 | struct i2c_board_info *info) |
6f9703d0 | 1192 | { |
008f1ca5 | 1193 | struct i2c_adapter *adapter = client->adapter; |
52df6440 | 1194 | int vendor, device, revision; |
6f9703d0 DW |
1195 | |
1196 | if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) | |
008f1ca5 | 1197 | return -ENODEV; |
6f9703d0 | 1198 | |
52df6440 JD |
1199 | vendor = i2c_smbus_read_byte_data(client, ADT7470_REG_VENDOR); |
1200 | if (vendor != ADT7470_VENDOR) | |
1201 | return -ENODEV; | |
6f9703d0 | 1202 | |
52df6440 JD |
1203 | device = i2c_smbus_read_byte_data(client, ADT7470_REG_DEVICE); |
1204 | if (device != ADT7470_DEVICE) | |
1205 | return -ENODEV; | |
6f9703d0 | 1206 | |
52df6440 JD |
1207 | revision = i2c_smbus_read_byte_data(client, ADT7470_REG_REVISION); |
1208 | if (revision != ADT7470_REVISION) | |
1209 | return -ENODEV; | |
6f9703d0 | 1210 | |
008f1ca5 | 1211 | strlcpy(info->type, "adt7470", I2C_NAME_SIZE); |
6f9703d0 | 1212 | |
008f1ca5 JD |
1213 | return 0; |
1214 | } | |
1215 | ||
9027d933 AL |
1216 | static void adt7470_init_client(struct i2c_client *client) |
1217 | { | |
1218 | int reg = i2c_smbus_read_byte_data(client, ADT7470_REG_CFG); | |
1219 | ||
1220 | if (reg < 0) { | |
1221 | dev_err(&client->dev, "cannot read configuration register\n"); | |
1222 | } else { | |
1223 | /* start monitoring (and do a self-test) */ | |
1224 | i2c_smbus_write_byte_data(client, ADT7470_REG_CFG, reg | 3); | |
1225 | } | |
1226 | } | |
1227 | ||
008f1ca5 JD |
1228 | static int adt7470_probe(struct i2c_client *client, |
1229 | const struct i2c_device_id *id) | |
1230 | { | |
30485776 | 1231 | struct device *dev = &client->dev; |
008f1ca5 | 1232 | struct adt7470_data *data; |
30485776 | 1233 | struct device *hwmon_dev; |
008f1ca5 | 1234 | |
30485776 | 1235 | data = devm_kzalloc(dev, sizeof(struct adt7470_data), GFP_KERNEL); |
9cc7dcc5 GR |
1236 | if (!data) |
1237 | return -ENOMEM; | |
008f1ca5 | 1238 | |
2f22d5df | 1239 | data->num_temp_sensors = -1; |
89fac11c | 1240 | data->auto_update_interval = AUTO_UPDATE_INTERVAL; |
2f22d5df | 1241 | |
008f1ca5 | 1242 | i2c_set_clientdata(client, data); |
30485776 | 1243 | data->client = client; |
008f1ca5 | 1244 | mutex_init(&data->lock); |
6f9703d0 DW |
1245 | |
1246 | dev_info(&client->dev, "%s chip found\n", client->name); | |
1247 | ||
1248 | /* Initialize the ADT7470 chip */ | |
1249 | adt7470_init_client(client); | |
1250 | ||
1251 | /* Register sysfs hooks */ | |
30485776 AL |
1252 | hwmon_dev = devm_hwmon_device_register_with_groups(dev, client->name, |
1253 | data, | |
1254 | adt7470_groups); | |
1255 | ||
1256 | if (IS_ERR(hwmon_dev)) | |
1257 | return PTR_ERR(hwmon_dev); | |
6f9703d0 | 1258 | |
89fac11c | 1259 | init_completion(&data->auto_update_stop); |
f170168b | 1260 | data->auto_update = kthread_run(adt7470_update_thread, client, "%s", |
30485776 | 1261 | dev_name(hwmon_dev)); |
f7334b4c | 1262 | if (IS_ERR(data->auto_update)) { |
30485776 | 1263 | return PTR_ERR(data->auto_update); |
f7334b4c | 1264 | } |
89fac11c | 1265 | |
6f9703d0 | 1266 | return 0; |
6f9703d0 DW |
1267 | } |
1268 | ||
008f1ca5 | 1269 | static int adt7470_remove(struct i2c_client *client) |
6f9703d0 DW |
1270 | { |
1271 | struct adt7470_data *data = i2c_get_clientdata(client); | |
1272 | ||
89fac11c DW |
1273 | kthread_stop(data->auto_update); |
1274 | wait_for_completion(&data->auto_update_stop); | |
6f9703d0 DW |
1275 | return 0; |
1276 | } | |
1277 | ||
9027d933 AL |
1278 | static const struct i2c_device_id adt7470_id[] = { |
1279 | { "adt7470", 0 }, | |
1280 | { } | |
1281 | }; | |
1282 | MODULE_DEVICE_TABLE(i2c, adt7470_id); | |
1283 | ||
1284 | static struct i2c_driver adt7470_driver = { | |
1285 | .class = I2C_CLASS_HWMON, | |
1286 | .driver = { | |
1287 | .name = "adt7470", | |
1288 | }, | |
1289 | .probe = adt7470_probe, | |
1290 | .remove = adt7470_remove, | |
1291 | .id_table = adt7470_id, | |
1292 | .detect = adt7470_detect, | |
1293 | .address_list = normal_i2c, | |
1294 | }; | |
1295 | ||
f0967eea | 1296 | module_i2c_driver(adt7470_driver); |
6f9703d0 | 1297 | |
5407e051 | 1298 | MODULE_AUTHOR("Darrick J. Wong <darrick.wong@oracle.com>"); |
6f9703d0 DW |
1299 | MODULE_DESCRIPTION("ADT7470 driver"); |
1300 | MODULE_LICENSE("GPL"); |