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-rw-r--r--drivers/i2c/chips/lm63.c597
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diff --git a/drivers/i2c/chips/lm63.c b/drivers/i2c/chips/lm63.c
deleted file mode 100644
index 7c6f9ea5a254..000000000000
--- a/drivers/i2c/chips/lm63.c
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1/*
2 * lm63.c - driver for the National Semiconductor LM63 temperature sensor
3 * with integrated fan control
4 * Copyright (C) 2004-2005 Jean Delvare <khali@linux-fr.org>
5 * Based on the lm90 driver.
6 *
7 * The LM63 is a sensor chip made by National Semiconductor. It measures
8 * two temperatures (its own and one external one) and the speed of one
9 * fan, those speed it can additionally control. Complete datasheet can be
10 * obtained from National's website at:
11 * http://www.national.com/pf/LM/LM63.html
12 *
13 * The LM63 is basically an LM86 with fan speed monitoring and control
14 * capabilities added. It misses some of the LM86 features though:
15 * - No low limit for local temperature.
16 * - No critical limit for local temperature.
17 * - Critical limit for remote temperature can be changed only once. We
18 * will consider that the critical limit is read-only.
19 *
20 * The datasheet isn't very clear about what the tachometer reading is.
21 * I had a explanation from National Semiconductor though. The two lower
22 * bits of the read value have to be masked out. The value is still 16 bit
23 * in width.
24 *
25 * This program is free software; you can redistribute it and/or modify
26 * it under the terms of the GNU General Public License as published by
27 * the Free Software Foundation; either version 2 of the License, or
28 * (at your option) any later version.
29 *
30 * This program is distributed in the hope that it will be useful,
31 * but WITHOUT ANY WARRANTY; without even the implied warranty of
32 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
33 * GNU General Public License for more details.
34 *
35 * You should have received a copy of the GNU General Public License
36 * along with this program; if not, write to the Free Software
37 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
38 */
39
40#include <linux/module.h>
41#include <linux/init.h>
42#include <linux/slab.h>
43#include <linux/jiffies.h>
44#include <linux/i2c.h>
45#include <linux/i2c-sensor.h>
46#include <linux/hwmon-sysfs.h>
47
48/*
49 * Addresses to scan
50 * Address is fully defined internally and cannot be changed.
51 */
52
53static unsigned short normal_i2c[] = { 0x4c, I2C_CLIENT_END };
54static unsigned int normal_isa[] = { I2C_CLIENT_ISA_END };
55
56/*
57 * Insmod parameters
58 */
59
60SENSORS_INSMOD_1(lm63);
61
62/*
63 * The LM63 registers
64 */
65
66#define LM63_REG_CONFIG1 0x03
67#define LM63_REG_CONFIG2 0xBF
68#define LM63_REG_CONFIG_FAN 0x4A
69
70#define LM63_REG_TACH_COUNT_MSB 0x47
71#define LM63_REG_TACH_COUNT_LSB 0x46
72#define LM63_REG_TACH_LIMIT_MSB 0x49
73#define LM63_REG_TACH_LIMIT_LSB 0x48
74
75#define LM63_REG_PWM_VALUE 0x4C
76#define LM63_REG_PWM_FREQ 0x4D
77
78#define LM63_REG_LOCAL_TEMP 0x00
79#define LM63_REG_LOCAL_HIGH 0x05
80
81#define LM63_REG_REMOTE_TEMP_MSB 0x01
82#define LM63_REG_REMOTE_TEMP_LSB 0x10
83#define LM63_REG_REMOTE_OFFSET_MSB 0x11
84#define LM63_REG_REMOTE_OFFSET_LSB 0x12
85#define LM63_REG_REMOTE_HIGH_MSB 0x07
86#define LM63_REG_REMOTE_HIGH_LSB 0x13
87#define LM63_REG_REMOTE_LOW_MSB 0x08
88#define LM63_REG_REMOTE_LOW_LSB 0x14
89#define LM63_REG_REMOTE_TCRIT 0x19
90#define LM63_REG_REMOTE_TCRIT_HYST 0x21
91
92#define LM63_REG_ALERT_STATUS 0x02
93#define LM63_REG_ALERT_MASK 0x16
94
95#define LM63_REG_MAN_ID 0xFE
96#define LM63_REG_CHIP_ID 0xFF
97
98/*
99 * Conversions and various macros
100 * For tachometer counts, the LM63 uses 16-bit values.
101 * For local temperature and high limit, remote critical limit and hysteresis
102 * value, it uses signed 8-bit values with LSB = 1 degree Celsius.
103 * For remote temperature, low and high limits, it uses signed 11-bit values
104 * with LSB = 0.125 degree Celsius, left-justified in 16-bit registers.
105 */
106
107#define FAN_FROM_REG(reg) ((reg) == 0xFFFC || (reg) == 0 ? 0 : \
108 5400000 / (reg))
109#define FAN_TO_REG(val) ((val) <= 82 ? 0xFFFC : \
110 (5400000 / (val)) & 0xFFFC)
111#define TEMP8_FROM_REG(reg) ((reg) * 1000)
112#define TEMP8_TO_REG(val) ((val) <= -128000 ? -128 : \
113 (val) >= 127000 ? 127 : \
114 (val) < 0 ? ((val) - 500) / 1000 : \
115 ((val) + 500) / 1000)
116#define TEMP11_FROM_REG(reg) ((reg) / 32 * 125)
117#define TEMP11_TO_REG(val) ((val) <= -128000 ? 0x8000 : \
118 (val) >= 127875 ? 0x7FE0 : \
119 (val) < 0 ? ((val) - 62) / 125 * 32 : \
120 ((val) + 62) / 125 * 32)
121#define HYST_TO_REG(val) ((val) <= 0 ? 0 : \
122 (val) >= 127000 ? 127 : \
123 ((val) + 500) / 1000)
124
125/*
126 * Functions declaration
127 */
128
129static int lm63_attach_adapter(struct i2c_adapter *adapter);
130static int lm63_detach_client(struct i2c_client *client);
131
132static struct lm63_data *lm63_update_device(struct device *dev);
133
134static int lm63_detect(struct i2c_adapter *adapter, int address, int kind);
135static void lm63_init_client(struct i2c_client *client);
136
137/*
138 * Driver data (common to all clients)
139 */
140
141static struct i2c_driver lm63_driver = {
142 .owner = THIS_MODULE,
143 .name = "lm63",
144 .flags = I2C_DF_NOTIFY,
145 .attach_adapter = lm63_attach_adapter,
146 .detach_client = lm63_detach_client,
147};
148
149/*
150 * Client data (each client gets its own)
151 */
152
153struct lm63_data {
154 struct i2c_client client;
155 struct semaphore update_lock;
156 char valid; /* zero until following fields are valid */
157 unsigned long last_updated; /* in jiffies */
158
159 /* registers values */
160 u8 config, config_fan;
161 u16 fan[2]; /* 0: input
162 1: low limit */
163 u8 pwm1_freq;
164 u8 pwm1_value;
165 s8 temp8[3]; /* 0: local input
166 1: local high limit
167 2: remote critical limit */
168 s16 temp11[3]; /* 0: remote input
169 1: remote low limit
170 2: remote high limit */
171 u8 temp2_crit_hyst;
172 u8 alarms;
173};
174
175/*
176 * Sysfs callback functions and files
177 */
178
179static ssize_t show_fan(struct device *dev, struct device_attribute *devattr,
180 char *buf)
181{
182 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
183 struct lm63_data *data = lm63_update_device(dev);
184 return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[attr->index]));
185}
186
187static ssize_t set_fan(struct device *dev, struct device_attribute *dummy,
188 const char *buf, size_t count)
189{
190 struct i2c_client *client = to_i2c_client(dev);
191 struct lm63_data *data = i2c_get_clientdata(client);
192 unsigned long val = simple_strtoul(buf, NULL, 10);
193
194 down(&data->update_lock);
195 data->fan[1] = FAN_TO_REG(val);
196 i2c_smbus_write_byte_data(client, LM63_REG_TACH_LIMIT_LSB,
197 data->fan[1] & 0xFF);
198 i2c_smbus_write_byte_data(client, LM63_REG_TACH_LIMIT_MSB,
199 data->fan[1] >> 8);
200 up(&data->update_lock);
201 return count;
202}
203
204static ssize_t show_pwm1(struct device *dev, struct device_attribute *dummy,
205 char *buf)
206{
207 struct lm63_data *data = lm63_update_device(dev);
208 return sprintf(buf, "%d\n", data->pwm1_value >= 2 * data->pwm1_freq ?
209 255 : (data->pwm1_value * 255 + data->pwm1_freq) /
210 (2 * data->pwm1_freq));
211}
212
213static ssize_t set_pwm1(struct device *dev, struct device_attribute *dummy,
214 const char *buf, size_t count)
215{
216 struct i2c_client *client = to_i2c_client(dev);
217 struct lm63_data *data = i2c_get_clientdata(client);
218 unsigned long val;
219
220 if (!(data->config_fan & 0x20)) /* register is read-only */
221 return -EPERM;
222
223 val = simple_strtoul(buf, NULL, 10);
224 down(&data->update_lock);
225 data->pwm1_value = val <= 0 ? 0 :
226 val >= 255 ? 2 * data->pwm1_freq :
227 (val * data->pwm1_freq * 2 + 127) / 255;
228 i2c_smbus_write_byte_data(client, LM63_REG_PWM_VALUE, data->pwm1_value);
229 up(&data->update_lock);
230 return count;
231}
232
233static ssize_t show_pwm1_enable(struct device *dev, struct device_attribute *dummy,
234 char *buf)
235{
236 struct lm63_data *data = lm63_update_device(dev);
237 return sprintf(buf, "%d\n", data->config_fan & 0x20 ? 1 : 2);
238}
239
240static ssize_t show_temp8(struct device *dev, struct device_attribute *devattr,
241 char *buf)
242{
243 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
244 struct lm63_data *data = lm63_update_device(dev);
245 return sprintf(buf, "%d\n", TEMP8_FROM_REG(data->temp8[attr->index]));
246}
247
248static ssize_t set_temp8(struct device *dev, struct device_attribute *dummy,
249 const char *buf, size_t count)
250{
251 struct i2c_client *client = to_i2c_client(dev);
252 struct lm63_data *data = i2c_get_clientdata(client);
253 long val = simple_strtol(buf, NULL, 10);
254
255 down(&data->update_lock);
256 data->temp8[1] = TEMP8_TO_REG(val);
257 i2c_smbus_write_byte_data(client, LM63_REG_LOCAL_HIGH, data->temp8[1]);
258 up(&data->update_lock);
259 return count;
260}
261
262static ssize_t show_temp11(struct device *dev, struct device_attribute *devattr,
263 char *buf)
264{
265 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
266 struct lm63_data *data = lm63_update_device(dev);
267 return sprintf(buf, "%d\n", TEMP11_FROM_REG(data->temp11[attr->index]));
268}
269
270static ssize_t set_temp11(struct device *dev, struct device_attribute *devattr,
271 const char *buf, size_t count)
272{
273 static const u8 reg[4] = {
274 LM63_REG_REMOTE_LOW_MSB,
275 LM63_REG_REMOTE_LOW_LSB,
276 LM63_REG_REMOTE_HIGH_MSB,
277 LM63_REG_REMOTE_HIGH_LSB,
278 };
279
280 struct sensor_device_attribute *attr = to_sensor_dev_attr(devattr);
281 struct i2c_client *client = to_i2c_client(dev);
282 struct lm63_data *data = i2c_get_clientdata(client);
283 long val = simple_strtol(buf, NULL, 10);
284 int nr = attr->index;
285
286 down(&data->update_lock);
287 data->temp11[nr] = TEMP11_TO_REG(val);
288 i2c_smbus_write_byte_data(client, reg[(nr - 1) * 2],
289 data->temp11[nr] >> 8);
290 i2c_smbus_write_byte_data(client, reg[(nr - 1) * 2 + 1],
291 data->temp11[nr] & 0xff);
292 up(&data->update_lock);
293 return count;
294}
295
296/* Hysteresis register holds a relative value, while we want to present
297 an absolute to user-space */
298static ssize_t show_temp2_crit_hyst(struct device *dev, struct device_attribute *dummy,
299 char *buf)
300{
301 struct lm63_data *data = lm63_update_device(dev);
302 return sprintf(buf, "%d\n", TEMP8_FROM_REG(data->temp8[2])
303 - TEMP8_FROM_REG(data->temp2_crit_hyst));
304}
305
306/* And now the other way around, user-space provides an absolute
307 hysteresis value and we have to store a relative one */
308static ssize_t set_temp2_crit_hyst(struct device *dev, struct device_attribute *dummy,
309 const char *buf, size_t count)
310{
311 struct i2c_client *client = to_i2c_client(dev);
312 struct lm63_data *data = i2c_get_clientdata(client);
313 long val = simple_strtol(buf, NULL, 10);
314 long hyst;
315
316 down(&data->update_lock);
317 hyst = TEMP8_FROM_REG(data->temp8[2]) - val;
318 i2c_smbus_write_byte_data(client, LM63_REG_REMOTE_TCRIT_HYST,
319 HYST_TO_REG(hyst));
320 up(&data->update_lock);
321 return count;
322}
323
324static ssize_t show_alarms(struct device *dev, struct device_attribute *dummy,
325 char *buf)
326{
327 struct lm63_data *data = lm63_update_device(dev);
328 return sprintf(buf, "%u\n", data->alarms);
329}
330
331static SENSOR_DEVICE_ATTR(fan1_input, S_IRUGO, show_fan, NULL, 0);
332static SENSOR_DEVICE_ATTR(fan1_min, S_IWUSR | S_IRUGO, show_fan,
333 set_fan, 1);
334
335static DEVICE_ATTR(pwm1, S_IWUSR | S_IRUGO, show_pwm1, set_pwm1);
336static DEVICE_ATTR(pwm1_enable, S_IRUGO, show_pwm1_enable, NULL);
337
338static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, show_temp8, NULL, 0);
339static SENSOR_DEVICE_ATTR(temp1_max, S_IWUSR | S_IRUGO, show_temp8,
340 set_temp8, 1);
341
342static SENSOR_DEVICE_ATTR(temp2_input, S_IRUGO, show_temp11, NULL, 0);
343static SENSOR_DEVICE_ATTR(temp2_min, S_IWUSR | S_IRUGO, show_temp11,
344 set_temp11, 1);
345static SENSOR_DEVICE_ATTR(temp2_max, S_IWUSR | S_IRUGO, show_temp11,
346 set_temp11, 2);
347static SENSOR_DEVICE_ATTR(temp2_crit, S_IRUGO, show_temp8, NULL, 2);
348static DEVICE_ATTR(temp2_crit_hyst, S_IWUSR | S_IRUGO, show_temp2_crit_hyst,
349 set_temp2_crit_hyst);
350
351static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL);
352
353/*
354 * Real code
355 */
356
357static int lm63_attach_adapter(struct i2c_adapter *adapter)
358{
359 if (!(adapter->class & I2C_CLASS_HWMON))
360 return 0;
361 return i2c_detect(adapter, &addr_data, lm63_detect);
362}
363
364/*
365 * The following function does more than just detection. If detection
366 * succeeds, it also registers the new chip.
367 */
368static int lm63_detect(struct i2c_adapter *adapter, int address, int kind)
369{
370 struct i2c_client *new_client;
371 struct lm63_data *data;
372 int err = 0;
373
374 if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA))
375 goto exit;
376
377 if (!(data = kmalloc(sizeof(struct lm63_data), GFP_KERNEL))) {
378 err = -ENOMEM;
379 goto exit;
380 }
381 memset(data, 0, sizeof(struct lm63_data));
382
383 /* The common I2C client data is placed right before the
384 LM63-specific data. */
385 new_client = &data->client;
386 i2c_set_clientdata(new_client, data);
387 new_client->addr = address;
388 new_client->adapter = adapter;
389 new_client->driver = &lm63_driver;
390 new_client->flags = 0;
391
392 /* Default to an LM63 if forced */
393 if (kind == 0)
394 kind = lm63;
395
396 if (kind < 0) { /* must identify */
397 u8 man_id, chip_id, reg_config1, reg_config2;
398 u8 reg_alert_status, reg_alert_mask;
399
400 man_id = i2c_smbus_read_byte_data(new_client,
401 LM63_REG_MAN_ID);
402 chip_id = i2c_smbus_read_byte_data(new_client,
403 LM63_REG_CHIP_ID);
404 reg_config1 = i2c_smbus_read_byte_data(new_client,
405 LM63_REG_CONFIG1);
406 reg_config2 = i2c_smbus_read_byte_data(new_client,
407 LM63_REG_CONFIG2);
408 reg_alert_status = i2c_smbus_read_byte_data(new_client,
409 LM63_REG_ALERT_STATUS);
410 reg_alert_mask = i2c_smbus_read_byte_data(new_client,
411 LM63_REG_ALERT_MASK);
412
413 if (man_id == 0x01 /* National Semiconductor */
414 && chip_id == 0x41 /* LM63 */
415 && (reg_config1 & 0x18) == 0x00
416 && (reg_config2 & 0xF8) == 0x00
417 && (reg_alert_status & 0x20) == 0x00
418 && (reg_alert_mask & 0xA4) == 0xA4) {
419 kind = lm63;
420 } else { /* failed */
421 dev_dbg(&adapter->dev, "Unsupported chip "
422 "(man_id=0x%02X, chip_id=0x%02X).\n",
423 man_id, chip_id);
424 goto exit_free;
425 }
426 }
427
428 strlcpy(new_client->name, "lm63", I2C_NAME_SIZE);
429 data->valid = 0;
430 init_MUTEX(&data->update_lock);
431
432 /* Tell the I2C layer a new client has arrived */
433 if ((err = i2c_attach_client(new_client)))
434 goto exit_free;
435
436 /* Initialize the LM63 chip */
437 lm63_init_client(new_client);
438
439 /* Register sysfs hooks */
440 if (data->config & 0x04) { /* tachometer enabled */
441 device_create_file(&new_client->dev,
442 &sensor_dev_attr_fan1_input.dev_attr);
443 device_create_file(&new_client->dev,
444 &sensor_dev_attr_fan1_min.dev_attr);
445 }
446 device_create_file(&new_client->dev, &dev_attr_pwm1);
447 device_create_file(&new_client->dev, &dev_attr_pwm1_enable);
448 device_create_file(&new_client->dev,
449 &sensor_dev_attr_temp1_input.dev_attr);
450 device_create_file(&new_client->dev,
451 &sensor_dev_attr_temp2_input.dev_attr);
452 device_create_file(&new_client->dev,
453 &sensor_dev_attr_temp2_min.dev_attr);
454 device_create_file(&new_client->dev,
455 &sensor_dev_attr_temp1_max.dev_attr);
456 device_create_file(&new_client->dev,
457 &sensor_dev_attr_temp2_max.dev_attr);
458 device_create_file(&new_client->dev,
459 &sensor_dev_attr_temp2_crit.dev_attr);
460 device_create_file(&new_client->dev, &dev_attr_temp2_crit_hyst);
461 device_create_file(&new_client->dev, &dev_attr_alarms);
462
463 return 0;
464
465exit_free:
466 kfree(data);
467exit:
468 return err;
469}
470
471/* Idealy we shouldn't have to initialize anything, since the BIOS
472 should have taken care of everything */
473static void lm63_init_client(struct i2c_client *client)
474{
475 struct lm63_data *data = i2c_get_clientdata(client);
476
477 data->config = i2c_smbus_read_byte_data(client, LM63_REG_CONFIG1);
478 data->config_fan = i2c_smbus_read_byte_data(client,
479 LM63_REG_CONFIG_FAN);
480
481 /* Start converting if needed */
482 if (data->config & 0x40) { /* standby */
483 dev_dbg(&client->dev, "Switching to operational mode");
484 data->config &= 0xA7;
485 i2c_smbus_write_byte_data(client, LM63_REG_CONFIG1,
486 data->config);
487 }
488
489 /* We may need pwm1_freq before ever updating the client data */
490 data->pwm1_freq = i2c_smbus_read_byte_data(client, LM63_REG_PWM_FREQ);
491 if (data->pwm1_freq == 0)
492 data->pwm1_freq = 1;
493
494 /* Show some debug info about the LM63 configuration */
495 dev_dbg(&client->dev, "Alert/tach pin configured for %s\n",
496 (data->config & 0x04) ? "tachometer input" :
497 "alert output");
498 dev_dbg(&client->dev, "PWM clock %s kHz, output frequency %u Hz\n",
499 (data->config_fan & 0x08) ? "1.4" : "360",
500 ((data->config_fan & 0x08) ? 700 : 180000) / data->pwm1_freq);
501 dev_dbg(&client->dev, "PWM output active %s, %s mode\n",
502 (data->config_fan & 0x10) ? "low" : "high",
503 (data->config_fan & 0x20) ? "manual" : "auto");
504}
505
506static int lm63_detach_client(struct i2c_client *client)
507{
508 int err;
509
510 if ((err = i2c_detach_client(client))) {
511 dev_err(&client->dev, "Client deregistration failed, "
512 "client not detached\n");
513 return err;
514 }
515
516 kfree(i2c_get_clientdata(client));
517 return 0;
518}
519
520static struct lm63_data *lm63_update_device(struct device *dev)
521{
522 struct i2c_client *client = to_i2c_client(dev);
523 struct lm63_data *data = i2c_get_clientdata(client);
524
525 down(&data->update_lock);
526
527 if (time_after(jiffies, data->last_updated + HZ) || !data->valid) {
528 if (data->config & 0x04) { /* tachometer enabled */
529 /* order matters for fan1_input */
530 data->fan[0] = i2c_smbus_read_byte_data(client,
531 LM63_REG_TACH_COUNT_LSB) & 0xFC;
532 data->fan[0] |= i2c_smbus_read_byte_data(client,
533 LM63_REG_TACH_COUNT_MSB) << 8;
534 data->fan[1] = (i2c_smbus_read_byte_data(client,
535 LM63_REG_TACH_LIMIT_LSB) & 0xFC)
536 | (i2c_smbus_read_byte_data(client,
537 LM63_REG_TACH_LIMIT_MSB) << 8);
538 }
539
540 data->pwm1_freq = i2c_smbus_read_byte_data(client,
541 LM63_REG_PWM_FREQ);
542 if (data->pwm1_freq == 0)
543 data->pwm1_freq = 1;
544 data->pwm1_value = i2c_smbus_read_byte_data(client,
545 LM63_REG_PWM_VALUE);
546
547 data->temp8[0] = i2c_smbus_read_byte_data(client,
548 LM63_REG_LOCAL_TEMP);
549 data->temp8[1] = i2c_smbus_read_byte_data(client,
550 LM63_REG_LOCAL_HIGH);
551
552 /* order matters for temp2_input */
553 data->temp11[0] = i2c_smbus_read_byte_data(client,
554 LM63_REG_REMOTE_TEMP_MSB) << 8;
555 data->temp11[0] |= i2c_smbus_read_byte_data(client,
556 LM63_REG_REMOTE_TEMP_LSB);
557 data->temp11[1] = (i2c_smbus_read_byte_data(client,
558 LM63_REG_REMOTE_LOW_MSB) << 8)
559 | i2c_smbus_read_byte_data(client,
560 LM63_REG_REMOTE_LOW_LSB);
561 data->temp11[2] = (i2c_smbus_read_byte_data(client,
562 LM63_REG_REMOTE_HIGH_MSB) << 8)
563 | i2c_smbus_read_byte_data(client,
564 LM63_REG_REMOTE_HIGH_LSB);
565 data->temp8[2] = i2c_smbus_read_byte_data(client,
566 LM63_REG_REMOTE_TCRIT);
567 data->temp2_crit_hyst = i2c_smbus_read_byte_data(client,
568 LM63_REG_REMOTE_TCRIT_HYST);
569
570 data->alarms = i2c_smbus_read_byte_data(client,
571 LM63_REG_ALERT_STATUS) & 0x7F;
572
573 data->last_updated = jiffies;
574 data->valid = 1;
575 }
576
577 up(&data->update_lock);
578
579 return data;
580}
581
582static int __init sensors_lm63_init(void)
583{
584 return i2c_add_driver(&lm63_driver);
585}
586
587static void __exit sensors_lm63_exit(void)
588{
589 i2c_del_driver(&lm63_driver);
590}
591
592MODULE_AUTHOR("Jean Delvare <khali@linux-fr.org>");
593MODULE_DESCRIPTION("LM63 driver");
594MODULE_LICENSE("GPL");
595
596module_init(sensors_lm63_init);
597module_exit(sensors_lm63_exit);