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1 | /* |
2 | * vt8231.c - Part of lm_sensors, Linux kernel modules |
3 | * for hardware monitoring |
4 | * |
5 | * Copyright (c) 2005 Roger Lucas <vt8231@hiddenengine.co.uk> |
6 | * Copyright (c) 2002 Mark D. Studebaker <mdsxyz123@yahoo.com> |
7 | * Aaron M. Marsh <amarsh@sdf.lonestar.org> |
8 | * |
9 | * This program is free software; you can redistribute it and/or modify |
10 | * it under the terms of the GNU General Public License as published by |
11 | * the Free Software Foundation; either version 2 of the License, or |
12 | * (at your option) any later version. |
13 | * |
14 | * This program is distributed in the hope that it will be useful, |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
17 | * GNU General Public License for more details. |
18 | * |
19 | * You should have received a copy of the GNU General Public License |
20 | * along with this program; if not, write to the Free Software |
21 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
22 | */ |
23 | |
24 | /* |
25 | * Supports VIA VT8231 South Bridge embedded sensors |
26 | */ |
27 | |
28 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
29 | |
30 | #include <linux/module.h> |
31 | #include <linux/init.h> |
32 | #include <linux/slab.h> |
33 | #include <linux/pci.h> |
34 | #include <linux/jiffies.h> |
35 | #include <linux/platform_device.h> |
36 | #include <linux/hwmon.h> |
37 | #include <linux/hwmon-sysfs.h> |
38 | #include <linux/hwmon-vid.h> |
39 | #include <linux/err.h> |
40 | #include <linux/mutex.h> |
41 | #include <linux/acpi.h> |
42 | #include <linux/io.h> |
43 | |
44 | static int force_addr; |
45 | module_param(force_addr, int, 0); |
46 | MODULE_PARM_DESC(force_addr, "Initialize the base address of the sensors"); |
47 | |
48 | static struct platform_device *pdev; |
49 | |
50 | #define VT8231_EXTENT 0x80 |
51 | #define VT8231_BASE_REG 0x70 |
52 | #define VT8231_ENABLE_REG 0x74 |
53 | |
54 | /* |
55 | * The VT8231 registers |
56 | * |
57 | * The reset value for the input channel configuration is used (Reg 0x4A=0x07) |
58 | * which sets the selected inputs marked with '*' below if multiple options are |
59 | * possible: |
60 | * |
61 | * Voltage Mode Temperature Mode |
62 | * Sensor Linux Id Linux Id VIA Id |
63 | * -------- -------- -------- ------ |
64 | * CPU Diode N/A temp1 0 |
65 | * UIC1 in0 temp2 * 1 |
66 | * UIC2 in1 * temp3 2 |
67 | * UIC3 in2 * temp4 3 |
68 | * UIC4 in3 * temp5 4 |
69 | * UIC5 in4 * temp6 5 |
70 | * 3.3V in5 N/A |
71 | * |
72 | * Note that the BIOS may set the configuration register to a different value |
73 | * to match the motherboard configuration. |
74 | */ |
75 | |
76 | /* fans numbered 0-1 */ |
77 | #define VT8231_REG_FAN_MIN(nr) (0x3b + (nr)) |
78 | #define VT8231_REG_FAN(nr) (0x29 + (nr)) |
79 | |
80 | /* Voltage inputs numbered 0-5 */ |
81 | |
82 | static const u8 regvolt[] = { 0x21, 0x22, 0x23, 0x24, 0x25, 0x26 }; |
83 | static const u8 regvoltmax[] = { 0x3d, 0x2b, 0x2d, 0x2f, 0x31, 0x33 }; |
84 | static const u8 regvoltmin[] = { 0x3e, 0x2c, 0x2e, 0x30, 0x32, 0x34 }; |
85 | |
86 | /* |
87 | * Temperatures are numbered 1-6 according to the Linux kernel specification. |
88 | * |
89 | * In the VIA datasheet, however, the temperatures are numbered from zero. |
90 | * Since it is important that this driver can easily be compared to the VIA |
91 | * datasheet, we will use the VIA numbering within this driver and map the |
92 | * kernel sysfs device name to the VIA number in the sysfs callback. |
93 | */ |
94 | |
95 | #define VT8231_REG_TEMP_LOW01 0x49 |
96 | #define VT8231_REG_TEMP_LOW25 0x4d |
97 | |
98 | static const u8 regtemp[] = { 0x1f, 0x21, 0x22, 0x23, 0x24, 0x25 }; |
99 | static const u8 regtempmax[] = { 0x39, 0x3d, 0x2b, 0x2d, 0x2f, 0x31 }; |
100 | static const u8 regtempmin[] = { 0x3a, 0x3e, 0x2c, 0x2e, 0x30, 0x32 }; |
101 | |
102 | #define TEMP_FROM_REG(reg) (((253 * 4 - (reg)) * 550 + 105) / 210) |
103 | #define TEMP_MAXMIN_FROM_REG(reg) (((253 - (reg)) * 2200 + 105) / 210) |
104 | #define TEMP_MAXMIN_TO_REG(val) (253 - ((val) * 210 + 1100) / 2200) |
105 | |
106 | #define VT8231_REG_CONFIG 0x40 |
107 | #define VT8231_REG_ALARM1 0x41 |
108 | #define VT8231_REG_ALARM2 0x42 |
109 | #define VT8231_REG_FANDIV 0x47 |
110 | #define VT8231_REG_UCH_CONFIG 0x4a |
111 | #define VT8231_REG_TEMP1_CONFIG 0x4b |
112 | #define VT8231_REG_TEMP2_CONFIG 0x4c |
113 | |
114 | /* |
115 | * temps 0-5 as numbered in VIA datasheet - see later for mapping to Linux |
116 | * numbering |
117 | */ |
118 | #define ISTEMP(i, ch_config) ((i) == 0 ? 1 : \ |
119 | ((ch_config) >> ((i)+1)) & 0x01) |
120 | /* voltages 0-5 */ |
121 | #define ISVOLT(i, ch_config) ((i) == 5 ? 1 : \ |
122 | !(((ch_config) >> ((i)+2)) & 0x01)) |
123 | |
124 | #define DIV_FROM_REG(val) (1 << (val)) |
125 | |
126 | /* |
127 | * NB The values returned here are NOT temperatures. The calibration curves |
128 | * for the thermistor curves are board-specific and must go in the |
129 | * sensors.conf file. Temperature sensors are actually ten bits, but the |
130 | * VIA datasheet only considers the 8 MSBs obtained from the regtemp[] |
131 | * register. The temperature value returned should have a magnitude of 3, |
132 | * so we use the VIA scaling as the "true" scaling and use the remaining 2 |
133 | * LSBs as fractional precision. |
134 | * |
135 | * All the on-chip hardware temperature comparisons for the alarms are only |
136 | * 8-bits wide, and compare against the 8 MSBs of the temperature. The bits |
137 | * in the registers VT8231_REG_TEMP_LOW01 and VT8231_REG_TEMP_LOW25 are |
138 | * ignored. |
139 | */ |
140 | |
141 | /* |
142 | ****** FAN RPM CONVERSIONS ******** |
143 | * This chip saturates back at 0, not at 255 like many the other chips. |
144 | * So, 0 means 0 RPM |
145 | */ |
146 | static inline u8 FAN_TO_REG(long rpm, int div) |
147 | { |
148 | if (rpm == 0) |
149 | return 0; |
150 | return clamp_val(1310720 / (rpm * div), 1, 255); |
151 | } |
152 | |
153 | #define FAN_FROM_REG(val, div) ((val) == 0 ? 0 : 1310720 / ((val) * (div))) |
154 | |
155 | struct vt8231_data { |
156 | unsigned short addr; |
157 | const char *name; |
158 | |
159 | struct mutex update_lock; |
160 | struct device *hwmon_dev; |
161 | char valid; /* !=0 if following fields are valid */ |
162 | unsigned long last_updated; /* In jiffies */ |
163 | |
164 | u8 in[6]; /* Register value */ |
165 | u8 in_max[6]; /* Register value */ |
166 | u8 in_min[6]; /* Register value */ |
167 | u16 temp[6]; /* Register value 10 bit, right aligned */ |
168 | u8 temp_max[6]; /* Register value */ |
169 | u8 temp_min[6]; /* Register value */ |
170 | u8 fan[2]; /* Register value */ |
171 | u8 fan_min[2]; /* Register value */ |
172 | u8 fan_div[2]; /* Register encoding, shifted right */ |
173 | u16 alarms; /* Register encoding */ |
174 | u8 uch_config; |
175 | }; |
176 | |
177 | static struct pci_dev *s_bridge; |
178 | static int vt8231_probe(struct platform_device *pdev); |
179 | static int vt8231_remove(struct platform_device *pdev); |
180 | static struct vt8231_data *vt8231_update_device(struct device *dev); |
181 | static void vt8231_init_device(struct vt8231_data *data); |
182 | |
183 | static inline int vt8231_read_value(struct vt8231_data *data, u8 reg) |
184 | { |
185 | return inb_p(data->addr + reg); |
186 | } |
187 | |
188 | static inline void vt8231_write_value(struct vt8231_data *data, u8 reg, |
189 | u8 value) |
190 | { |
191 | outb_p(value, data->addr + reg); |
192 | } |
193 | |
194 | /* following are the sysfs callback functions */ |
195 | static ssize_t show_in(struct device *dev, struct device_attribute *attr, |
196 | char *buf) |
197 | { |
198 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
199 | int nr = sensor_attr->index; |
200 | struct vt8231_data *data = vt8231_update_device(dev); |
201 | |
202 | return sprintf(buf, "%d\n", ((data->in[nr] - 3) * 10000) / 958); |
203 | } |
204 | |
205 | static ssize_t show_in_min(struct device *dev, struct device_attribute *attr, |
206 | char *buf) |
207 | { |
208 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
209 | int nr = sensor_attr->index; |
210 | struct vt8231_data *data = vt8231_update_device(dev); |
211 | |
212 | return sprintf(buf, "%d\n", ((data->in_min[nr] - 3) * 10000) / 958); |
213 | } |
214 | |
215 | static ssize_t show_in_max(struct device *dev, struct device_attribute *attr, |
216 | char *buf) |
217 | { |
218 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
219 | int nr = sensor_attr->index; |
220 | struct vt8231_data *data = vt8231_update_device(dev); |
221 | |
222 | return sprintf(buf, "%d\n", (((data->in_max[nr] - 3) * 10000) / 958)); |
223 | } |
224 | |
225 | static ssize_t set_in_min(struct device *dev, struct device_attribute *attr, |
226 | const char *buf, size_t count) |
227 | { |
228 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
229 | int nr = sensor_attr->index; |
230 | struct vt8231_data *data = dev_get_drvdata(dev); |
231 | unsigned long val; |
232 | int err; |
233 | |
234 | err = kstrtoul(buf, 10, &val); |
235 | if (err) |
236 | return err; |
237 | |
238 | mutex_lock(&data->update_lock); |
239 | data->in_min[nr] = clamp_val(((val * 958) / 10000) + 3, 0, 255); |
240 | vt8231_write_value(data, regvoltmin[nr], data->in_min[nr]); |
241 | mutex_unlock(&data->update_lock); |
242 | return count; |
243 | } |
244 | |
245 | static ssize_t set_in_max(struct device *dev, struct device_attribute *attr, |
246 | const char *buf, size_t count) |
247 | { |
248 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
249 | int nr = sensor_attr->index; |
250 | struct vt8231_data *data = dev_get_drvdata(dev); |
251 | unsigned long val; |
252 | int err; |
253 | |
254 | err = kstrtoul(buf, 10, &val); |
255 | if (err) |
256 | return err; |
257 | |
258 | mutex_lock(&data->update_lock); |
259 | data->in_max[nr] = clamp_val(((val * 958) / 10000) + 3, 0, 255); |
260 | vt8231_write_value(data, regvoltmax[nr], data->in_max[nr]); |
261 | mutex_unlock(&data->update_lock); |
262 | return count; |
263 | } |
264 | |
265 | /* Special case for input 5 as this has 3.3V scaling built into the chip */ |
266 | static ssize_t show_in5(struct device *dev, struct device_attribute *attr, |
267 | char *buf) |
268 | { |
269 | struct vt8231_data *data = vt8231_update_device(dev); |
270 | |
271 | return sprintf(buf, "%d\n", |
272 | (((data->in[5] - 3) * 10000 * 54) / (958 * 34))); |
273 | } |
274 | |
275 | static ssize_t show_in5_min(struct device *dev, struct device_attribute *attr, |
276 | char *buf) |
277 | { |
278 | struct vt8231_data *data = vt8231_update_device(dev); |
279 | |
280 | return sprintf(buf, "%d\n", |
281 | (((data->in_min[5] - 3) * 10000 * 54) / (958 * 34))); |
282 | } |
283 | |
284 | static ssize_t show_in5_max(struct device *dev, struct device_attribute *attr, |
285 | char *buf) |
286 | { |
287 | struct vt8231_data *data = vt8231_update_device(dev); |
288 | |
289 | return sprintf(buf, "%d\n", |
290 | (((data->in_max[5] - 3) * 10000 * 54) / (958 * 34))); |
291 | } |
292 | |
293 | static ssize_t set_in5_min(struct device *dev, struct device_attribute *attr, |
294 | const char *buf, size_t count) |
295 | { |
296 | struct vt8231_data *data = dev_get_drvdata(dev); |
297 | unsigned long val; |
298 | int err; |
299 | |
300 | err = kstrtoul(buf, 10, &val); |
301 | if (err) |
302 | return err; |
303 | |
304 | mutex_lock(&data->update_lock); |
305 | data->in_min[5] = clamp_val(((val * 958 * 34) / (10000 * 54)) + 3, |
306 | 0, 255); |
307 | vt8231_write_value(data, regvoltmin[5], data->in_min[5]); |
308 | mutex_unlock(&data->update_lock); |
309 | return count; |
310 | } |
311 | |
312 | static ssize_t set_in5_max(struct device *dev, struct device_attribute *attr, |
313 | const char *buf, size_t count) |
314 | { |
315 | struct vt8231_data *data = dev_get_drvdata(dev); |
316 | unsigned long val; |
317 | int err; |
318 | |
319 | err = kstrtoul(buf, 10, &val); |
320 | if (err) |
321 | return err; |
322 | |
323 | mutex_lock(&data->update_lock); |
324 | data->in_max[5] = clamp_val(((val * 958 * 34) / (10000 * 54)) + 3, |
325 | 0, 255); |
326 | vt8231_write_value(data, regvoltmax[5], data->in_max[5]); |
327 | mutex_unlock(&data->update_lock); |
328 | return count; |
329 | } |
330 | |
331 | #define define_voltage_sysfs(offset) \ |
332 | static SENSOR_DEVICE_ATTR(in##offset##_input, S_IRUGO, \ |
333 | show_in, NULL, offset); \ |
334 | static SENSOR_DEVICE_ATTR(in##offset##_min, S_IRUGO | S_IWUSR, \ |
335 | show_in_min, set_in_min, offset); \ |
336 | static SENSOR_DEVICE_ATTR(in##offset##_max, S_IRUGO | S_IWUSR, \ |
337 | show_in_max, set_in_max, offset) |
338 | |
339 | define_voltage_sysfs(0); |
340 | define_voltage_sysfs(1); |
341 | define_voltage_sysfs(2); |
342 | define_voltage_sysfs(3); |
343 | define_voltage_sysfs(4); |
344 | |
345 | static DEVICE_ATTR(in5_input, S_IRUGO, show_in5, NULL); |
346 | static DEVICE_ATTR(in5_min, S_IRUGO | S_IWUSR, show_in5_min, set_in5_min); |
347 | static DEVICE_ATTR(in5_max, S_IRUGO | S_IWUSR, show_in5_max, set_in5_max); |
348 | |
349 | /* Temperatures */ |
350 | static ssize_t show_temp0(struct device *dev, struct device_attribute *attr, |
351 | char *buf) |
352 | { |
353 | struct vt8231_data *data = vt8231_update_device(dev); |
354 | return sprintf(buf, "%d\n", data->temp[0] * 250); |
355 | } |
356 | |
357 | static ssize_t show_temp0_max(struct device *dev, struct device_attribute *attr, |
358 | char *buf) |
359 | { |
360 | struct vt8231_data *data = vt8231_update_device(dev); |
361 | return sprintf(buf, "%d\n", data->temp_max[0] * 1000); |
362 | } |
363 | |
364 | static ssize_t show_temp0_min(struct device *dev, struct device_attribute *attr, |
365 | char *buf) |
366 | { |
367 | struct vt8231_data *data = vt8231_update_device(dev); |
368 | return sprintf(buf, "%d\n", data->temp_min[0] * 1000); |
369 | } |
370 | |
371 | static ssize_t set_temp0_max(struct device *dev, struct device_attribute *attr, |
372 | const char *buf, size_t count) |
373 | { |
374 | struct vt8231_data *data = dev_get_drvdata(dev); |
375 | long val; |
376 | int err; |
377 | |
378 | err = kstrtol(buf, 10, &val); |
379 | if (err) |
380 | return err; |
381 | |
382 | mutex_lock(&data->update_lock); |
383 | data->temp_max[0] = clamp_val((val + 500) / 1000, 0, 255); |
384 | vt8231_write_value(data, regtempmax[0], data->temp_max[0]); |
385 | mutex_unlock(&data->update_lock); |
386 | return count; |
387 | } |
388 | static ssize_t set_temp0_min(struct device *dev, struct device_attribute *attr, |
389 | const char *buf, size_t count) |
390 | { |
391 | struct vt8231_data *data = dev_get_drvdata(dev); |
392 | long val; |
393 | int err; |
394 | |
395 | err = kstrtol(buf, 10, &val); |
396 | if (err) |
397 | return err; |
398 | |
399 | mutex_lock(&data->update_lock); |
400 | data->temp_min[0] = clamp_val((val + 500) / 1000, 0, 255); |
401 | vt8231_write_value(data, regtempmin[0], data->temp_min[0]); |
402 | mutex_unlock(&data->update_lock); |
403 | return count; |
404 | } |
405 | |
406 | static ssize_t show_temp(struct device *dev, struct device_attribute *attr, |
407 | char *buf) |
408 | { |
409 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
410 | int nr = sensor_attr->index; |
411 | struct vt8231_data *data = vt8231_update_device(dev); |
412 | return sprintf(buf, "%d\n", TEMP_FROM_REG(data->temp[nr])); |
413 | } |
414 | |
415 | static ssize_t show_temp_max(struct device *dev, struct device_attribute *attr, |
416 | char *buf) |
417 | { |
418 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
419 | int nr = sensor_attr->index; |
420 | struct vt8231_data *data = vt8231_update_device(dev); |
421 | return sprintf(buf, "%d\n", TEMP_MAXMIN_FROM_REG(data->temp_max[nr])); |
422 | } |
423 | |
424 | static ssize_t show_temp_min(struct device *dev, struct device_attribute *attr, |
425 | char *buf) |
426 | { |
427 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
428 | int nr = sensor_attr->index; |
429 | struct vt8231_data *data = vt8231_update_device(dev); |
430 | return sprintf(buf, "%d\n", TEMP_MAXMIN_FROM_REG(data->temp_min[nr])); |
431 | } |
432 | |
433 | static ssize_t set_temp_max(struct device *dev, struct device_attribute *attr, |
434 | const char *buf, size_t count) |
435 | { |
436 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
437 | int nr = sensor_attr->index; |
438 | struct vt8231_data *data = dev_get_drvdata(dev); |
439 | long val; |
440 | int err; |
441 | |
442 | err = kstrtol(buf, 10, &val); |
443 | if (err) |
444 | return err; |
445 | |
446 | mutex_lock(&data->update_lock); |
447 | data->temp_max[nr] = clamp_val(TEMP_MAXMIN_TO_REG(val), 0, 255); |
448 | vt8231_write_value(data, regtempmax[nr], data->temp_max[nr]); |
449 | mutex_unlock(&data->update_lock); |
450 | return count; |
451 | } |
452 | static ssize_t set_temp_min(struct device *dev, struct device_attribute *attr, |
453 | const char *buf, size_t count) |
454 | { |
455 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
456 | int nr = sensor_attr->index; |
457 | struct vt8231_data *data = dev_get_drvdata(dev); |
458 | long val; |
459 | int err; |
460 | |
461 | err = kstrtol(buf, 10, &val); |
462 | if (err) |
463 | return err; |
464 | |
465 | mutex_lock(&data->update_lock); |
466 | data->temp_min[nr] = clamp_val(TEMP_MAXMIN_TO_REG(val), 0, 255); |
467 | vt8231_write_value(data, regtempmin[nr], data->temp_min[nr]); |
468 | mutex_unlock(&data->update_lock); |
469 | return count; |
470 | } |
471 | |
472 | /* |
473 | * Note that these map the Linux temperature sensor numbering (1-6) to the VIA |
474 | * temperature sensor numbering (0-5) |
475 | */ |
476 | #define define_temperature_sysfs(offset) \ |
477 | static SENSOR_DEVICE_ATTR(temp##offset##_input, S_IRUGO, \ |
478 | show_temp, NULL, offset - 1); \ |
479 | static SENSOR_DEVICE_ATTR(temp##offset##_max, S_IRUGO | S_IWUSR, \ |
480 | show_temp_max, set_temp_max, offset - 1); \ |
481 | static SENSOR_DEVICE_ATTR(temp##offset##_max_hyst, S_IRUGO | S_IWUSR, \ |
482 | show_temp_min, set_temp_min, offset - 1) |
483 | |
484 | static DEVICE_ATTR(temp1_input, S_IRUGO, show_temp0, NULL); |
485 | static DEVICE_ATTR(temp1_max, S_IRUGO | S_IWUSR, show_temp0_max, set_temp0_max); |
486 | static DEVICE_ATTR(temp1_max_hyst, S_IRUGO | S_IWUSR, show_temp0_min, |
487 | set_temp0_min); |
488 | |
489 | define_temperature_sysfs(2); |
490 | define_temperature_sysfs(3); |
491 | define_temperature_sysfs(4); |
492 | define_temperature_sysfs(5); |
493 | define_temperature_sysfs(6); |
494 | |
495 | /* Fans */ |
496 | static ssize_t show_fan(struct device *dev, struct device_attribute *attr, |
497 | char *buf) |
498 | { |
499 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
500 | int nr = sensor_attr->index; |
501 | struct vt8231_data *data = vt8231_update_device(dev); |
502 | return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan[nr], |
503 | DIV_FROM_REG(data->fan_div[nr]))); |
504 | } |
505 | |
506 | static ssize_t show_fan_min(struct device *dev, struct device_attribute *attr, |
507 | char *buf) |
508 | { |
509 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
510 | int nr = sensor_attr->index; |
511 | struct vt8231_data *data = vt8231_update_device(dev); |
512 | return sprintf(buf, "%d\n", FAN_FROM_REG(data->fan_min[nr], |
513 | DIV_FROM_REG(data->fan_div[nr]))); |
514 | } |
515 | |
516 | static ssize_t show_fan_div(struct device *dev, struct device_attribute *attr, |
517 | char *buf) |
518 | { |
519 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
520 | int nr = sensor_attr->index; |
521 | struct vt8231_data *data = vt8231_update_device(dev); |
522 | return sprintf(buf, "%d\n", DIV_FROM_REG(data->fan_div[nr])); |
523 | } |
524 | |
525 | static ssize_t set_fan_min(struct device *dev, struct device_attribute *attr, |
526 | const char *buf, size_t count) |
527 | { |
528 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
529 | int nr = sensor_attr->index; |
530 | struct vt8231_data *data = dev_get_drvdata(dev); |
531 | unsigned long val; |
532 | int err; |
533 | |
534 | err = kstrtoul(buf, 10, &val); |
535 | if (err) |
536 | return err; |
537 | |
538 | mutex_lock(&data->update_lock); |
539 | data->fan_min[nr] = FAN_TO_REG(val, DIV_FROM_REG(data->fan_div[nr])); |
540 | vt8231_write_value(data, VT8231_REG_FAN_MIN(nr), data->fan_min[nr]); |
541 | mutex_unlock(&data->update_lock); |
542 | return count; |
543 | } |
544 | |
545 | static ssize_t set_fan_div(struct device *dev, struct device_attribute *attr, |
546 | const char *buf, size_t count) |
547 | { |
548 | struct vt8231_data *data = dev_get_drvdata(dev); |
549 | struct sensor_device_attribute *sensor_attr = to_sensor_dev_attr(attr); |
550 | unsigned long val; |
551 | int nr = sensor_attr->index; |
552 | int old = vt8231_read_value(data, VT8231_REG_FANDIV); |
553 | long min = FAN_FROM_REG(data->fan_min[nr], |
554 | DIV_FROM_REG(data->fan_div[nr])); |
555 | int err; |
556 | |
557 | err = kstrtoul(buf, 10, &val); |
558 | if (err) |
559 | return err; |
560 | |
561 | mutex_lock(&data->update_lock); |
562 | switch (val) { |
563 | case 1: |
564 | data->fan_div[nr] = 0; |
565 | break; |
566 | case 2: |
567 | data->fan_div[nr] = 1; |
568 | break; |
569 | case 4: |
570 | data->fan_div[nr] = 2; |
571 | break; |
572 | case 8: |
573 | data->fan_div[nr] = 3; |
574 | break; |
575 | default: |
576 | dev_err(dev, |
577 | "fan_div value %ld not supported. Choose one of 1, 2, 4 or 8!\n", |
578 | val); |
579 | mutex_unlock(&data->update_lock); |
580 | return -EINVAL; |
581 | } |
582 | |
583 | /* Correct the fan minimum speed */ |
584 | data->fan_min[nr] = FAN_TO_REG(min, DIV_FROM_REG(data->fan_div[nr])); |
585 | vt8231_write_value(data, VT8231_REG_FAN_MIN(nr), data->fan_min[nr]); |
586 | |
587 | old = (old & 0x0f) | (data->fan_div[1] << 6) | (data->fan_div[0] << 4); |
588 | vt8231_write_value(data, VT8231_REG_FANDIV, old); |
589 | mutex_unlock(&data->update_lock); |
590 | return count; |
591 | } |
592 | |
593 | |
594 | #define define_fan_sysfs(offset) \ |
595 | static SENSOR_DEVICE_ATTR(fan##offset##_input, S_IRUGO, \ |
596 | show_fan, NULL, offset - 1); \ |
597 | static SENSOR_DEVICE_ATTR(fan##offset##_div, S_IRUGO | S_IWUSR, \ |
598 | show_fan_div, set_fan_div, offset - 1); \ |
599 | static SENSOR_DEVICE_ATTR(fan##offset##_min, S_IRUGO | S_IWUSR, \ |
600 | show_fan_min, set_fan_min, offset - 1) |
601 | |
602 | define_fan_sysfs(1); |
603 | define_fan_sysfs(2); |
604 | |
605 | /* Alarms */ |
606 | static ssize_t show_alarms(struct device *dev, struct device_attribute *attr, |
607 | char *buf) |
608 | { |
609 | struct vt8231_data *data = vt8231_update_device(dev); |
610 | return sprintf(buf, "%d\n", data->alarms); |
611 | } |
612 | static DEVICE_ATTR(alarms, S_IRUGO, show_alarms, NULL); |
613 | |
614 | static ssize_t show_alarm(struct device *dev, struct device_attribute *attr, |
615 | char *buf) |
616 | { |
617 | int bitnr = to_sensor_dev_attr(attr)->index; |
618 | struct vt8231_data *data = vt8231_update_device(dev); |
619 | return sprintf(buf, "%u\n", (data->alarms >> bitnr) & 1); |
620 | } |
621 | static SENSOR_DEVICE_ATTR(temp1_alarm, S_IRUGO, show_alarm, NULL, 4); |
622 | static SENSOR_DEVICE_ATTR(temp2_alarm, S_IRUGO, show_alarm, NULL, 11); |
623 | static SENSOR_DEVICE_ATTR(temp3_alarm, S_IRUGO, show_alarm, NULL, 0); |
624 | static SENSOR_DEVICE_ATTR(temp4_alarm, S_IRUGO, show_alarm, NULL, 1); |
625 | static SENSOR_DEVICE_ATTR(temp5_alarm, S_IRUGO, show_alarm, NULL, 3); |
626 | static SENSOR_DEVICE_ATTR(temp6_alarm, S_IRUGO, show_alarm, NULL, 8); |
627 | static SENSOR_DEVICE_ATTR(in0_alarm, S_IRUGO, show_alarm, NULL, 11); |
628 | static SENSOR_DEVICE_ATTR(in1_alarm, S_IRUGO, show_alarm, NULL, 0); |
629 | static SENSOR_DEVICE_ATTR(in2_alarm, S_IRUGO, show_alarm, NULL, 1); |
630 | static SENSOR_DEVICE_ATTR(in3_alarm, S_IRUGO, show_alarm, NULL, 3); |
631 | static SENSOR_DEVICE_ATTR(in4_alarm, S_IRUGO, show_alarm, NULL, 8); |
632 | static SENSOR_DEVICE_ATTR(in5_alarm, S_IRUGO, show_alarm, NULL, 2); |
633 | static SENSOR_DEVICE_ATTR(fan1_alarm, S_IRUGO, show_alarm, NULL, 6); |
634 | static SENSOR_DEVICE_ATTR(fan2_alarm, S_IRUGO, show_alarm, NULL, 7); |
635 | |
636 | static ssize_t show_name(struct device *dev, struct device_attribute |
637 | *devattr, char *buf) |
638 | { |
639 | struct vt8231_data *data = dev_get_drvdata(dev); |
640 | return sprintf(buf, "%s\n", data->name); |
641 | } |
642 | static DEVICE_ATTR(name, S_IRUGO, show_name, NULL); |
643 | |
644 | static struct attribute *vt8231_attributes_temps[6][5] = { |
645 | { |
646 | &dev_attr_temp1_input.attr, |
647 | &dev_attr_temp1_max_hyst.attr, |
648 | &dev_attr_temp1_max.attr, |
649 | &sensor_dev_attr_temp1_alarm.dev_attr.attr, |
650 | NULL |
651 | }, { |
652 | &sensor_dev_attr_temp2_input.dev_attr.attr, |
653 | &sensor_dev_attr_temp2_max_hyst.dev_attr.attr, |
654 | &sensor_dev_attr_temp2_max.dev_attr.attr, |
655 | &sensor_dev_attr_temp2_alarm.dev_attr.attr, |
656 | NULL |
657 | }, { |
658 | &sensor_dev_attr_temp3_input.dev_attr.attr, |
659 | &sensor_dev_attr_temp3_max_hyst.dev_attr.attr, |
660 | &sensor_dev_attr_temp3_max.dev_attr.attr, |
661 | &sensor_dev_attr_temp3_alarm.dev_attr.attr, |
662 | NULL |
663 | }, { |
664 | &sensor_dev_attr_temp4_input.dev_attr.attr, |
665 | &sensor_dev_attr_temp4_max_hyst.dev_attr.attr, |
666 | &sensor_dev_attr_temp4_max.dev_attr.attr, |
667 | &sensor_dev_attr_temp4_alarm.dev_attr.attr, |
668 | NULL |
669 | }, { |
670 | &sensor_dev_attr_temp5_input.dev_attr.attr, |
671 | &sensor_dev_attr_temp5_max_hyst.dev_attr.attr, |
672 | &sensor_dev_attr_temp5_max.dev_attr.attr, |
673 | &sensor_dev_attr_temp5_alarm.dev_attr.attr, |
674 | NULL |
675 | }, { |
676 | &sensor_dev_attr_temp6_input.dev_attr.attr, |
677 | &sensor_dev_attr_temp6_max_hyst.dev_attr.attr, |
678 | &sensor_dev_attr_temp6_max.dev_attr.attr, |
679 | &sensor_dev_attr_temp6_alarm.dev_attr.attr, |
680 | NULL |
681 | } |
682 | }; |
683 | |
684 | static const struct attribute_group vt8231_group_temps[6] = { |
685 | { .attrs = vt8231_attributes_temps[0] }, |
686 | { .attrs = vt8231_attributes_temps[1] }, |
687 | { .attrs = vt8231_attributes_temps[2] }, |
688 | { .attrs = vt8231_attributes_temps[3] }, |
689 | { .attrs = vt8231_attributes_temps[4] }, |
690 | { .attrs = vt8231_attributes_temps[5] }, |
691 | }; |
692 | |
693 | static struct attribute *vt8231_attributes_volts[6][5] = { |
694 | { |
695 | &sensor_dev_attr_in0_input.dev_attr.attr, |
696 | &sensor_dev_attr_in0_min.dev_attr.attr, |
697 | &sensor_dev_attr_in0_max.dev_attr.attr, |
698 | &sensor_dev_attr_in0_alarm.dev_attr.attr, |
699 | NULL |
700 | }, { |
701 | &sensor_dev_attr_in1_input.dev_attr.attr, |
702 | &sensor_dev_attr_in1_min.dev_attr.attr, |
703 | &sensor_dev_attr_in1_max.dev_attr.attr, |
704 | &sensor_dev_attr_in1_alarm.dev_attr.attr, |
705 | NULL |
706 | }, { |
707 | &sensor_dev_attr_in2_input.dev_attr.attr, |
708 | &sensor_dev_attr_in2_min.dev_attr.attr, |
709 | &sensor_dev_attr_in2_max.dev_attr.attr, |
710 | &sensor_dev_attr_in2_alarm.dev_attr.attr, |
711 | NULL |
712 | }, { |
713 | &sensor_dev_attr_in3_input.dev_attr.attr, |
714 | &sensor_dev_attr_in3_min.dev_attr.attr, |
715 | &sensor_dev_attr_in3_max.dev_attr.attr, |
716 | &sensor_dev_attr_in3_alarm.dev_attr.attr, |
717 | NULL |
718 | }, { |
719 | &sensor_dev_attr_in4_input.dev_attr.attr, |
720 | &sensor_dev_attr_in4_min.dev_attr.attr, |
721 | &sensor_dev_attr_in4_max.dev_attr.attr, |
722 | &sensor_dev_attr_in4_alarm.dev_attr.attr, |
723 | NULL |
724 | }, { |
725 | &dev_attr_in5_input.attr, |
726 | &dev_attr_in5_min.attr, |
727 | &dev_attr_in5_max.attr, |
728 | &sensor_dev_attr_in5_alarm.dev_attr.attr, |
729 | NULL |
730 | } |
731 | }; |
732 | |
733 | static const struct attribute_group vt8231_group_volts[6] = { |
734 | { .attrs = vt8231_attributes_volts[0] }, |
735 | { .attrs = vt8231_attributes_volts[1] }, |
736 | { .attrs = vt8231_attributes_volts[2] }, |
737 | { .attrs = vt8231_attributes_volts[3] }, |
738 | { .attrs = vt8231_attributes_volts[4] }, |
739 | { .attrs = vt8231_attributes_volts[5] }, |
740 | }; |
741 | |
742 | static struct attribute *vt8231_attributes[] = { |
743 | &sensor_dev_attr_fan1_input.dev_attr.attr, |
744 | &sensor_dev_attr_fan2_input.dev_attr.attr, |
745 | &sensor_dev_attr_fan1_min.dev_attr.attr, |
746 | &sensor_dev_attr_fan2_min.dev_attr.attr, |
747 | &sensor_dev_attr_fan1_div.dev_attr.attr, |
748 | &sensor_dev_attr_fan2_div.dev_attr.attr, |
749 | &sensor_dev_attr_fan1_alarm.dev_attr.attr, |
750 | &sensor_dev_attr_fan2_alarm.dev_attr.attr, |
751 | &dev_attr_alarms.attr, |
752 | &dev_attr_name.attr, |
753 | NULL |
754 | }; |
755 | |
756 | static const struct attribute_group vt8231_group = { |
757 | .attrs = vt8231_attributes, |
758 | }; |
759 | |
760 | static struct platform_driver vt8231_driver = { |
761 | .driver = { |
762 | .owner = THIS_MODULE, |
763 | .name = "vt8231", |
764 | }, |
765 | .probe = vt8231_probe, |
766 | .remove = vt8231_remove, |
767 | }; |
768 | |
769 | static DEFINE_PCI_DEVICE_TABLE(vt8231_pci_ids) = { |
770 | { PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_8231_4) }, |
771 | { 0, } |
772 | }; |
773 | |
774 | MODULE_DEVICE_TABLE(pci, vt8231_pci_ids); |
775 | |
776 | static int vt8231_pci_probe(struct pci_dev *dev, |
777 | const struct pci_device_id *id); |
778 | |
779 | static struct pci_driver vt8231_pci_driver = { |
780 | .name = "vt8231", |
781 | .id_table = vt8231_pci_ids, |
782 | .probe = vt8231_pci_probe, |
783 | }; |
784 | |
785 | static int vt8231_probe(struct platform_device *pdev) |
786 | { |
787 | struct resource *res; |
788 | struct vt8231_data *data; |
789 | int err = 0, i; |
790 | |
791 | /* Reserve the ISA region */ |
792 | res = platform_get_resource(pdev, IORESOURCE_IO, 0); |
793 | if (!devm_request_region(&pdev->dev, res->start, VT8231_EXTENT, |
794 | vt8231_driver.driver.name)) { |
795 | dev_err(&pdev->dev, "Region 0x%lx-0x%lx already in use!\n", |
796 | (unsigned long)res->start, (unsigned long)res->end); |
797 | return -ENODEV; |
798 | } |
799 | |
800 | data = devm_kzalloc(&pdev->dev, sizeof(struct vt8231_data), GFP_KERNEL); |
801 | if (!data) |
802 | return -ENOMEM; |
803 | |
804 | platform_set_drvdata(pdev, data); |
805 | data->addr = res->start; |
806 | data->name = "vt8231"; |
807 | |
808 | mutex_init(&data->update_lock); |
809 | vt8231_init_device(data); |
810 | |
811 | /* Register sysfs hooks */ |
812 | err = sysfs_create_group(&pdev->dev.kobj, &vt8231_group); |
813 | if (err) |
814 | return err; |
815 | |
816 | /* Must update device information to find out the config field */ |
817 | data->uch_config = vt8231_read_value(data, VT8231_REG_UCH_CONFIG); |
818 | |
819 | for (i = 0; i < ARRAY_SIZE(vt8231_group_temps); i++) { |
820 | if (ISTEMP(i, data->uch_config)) { |
821 | err = sysfs_create_group(&pdev->dev.kobj, |
822 | &vt8231_group_temps[i]); |
823 | if (err) |
824 | goto exit_remove_files; |
825 | } |
826 | } |
827 | |
828 | for (i = 0; i < ARRAY_SIZE(vt8231_group_volts); i++) { |
829 | if (ISVOLT(i, data->uch_config)) { |
830 | err = sysfs_create_group(&pdev->dev.kobj, |
831 | &vt8231_group_volts[i]); |
832 | if (err) |
833 | goto exit_remove_files; |
834 | } |
835 | } |
836 | |
837 | data->hwmon_dev = hwmon_device_register(&pdev->dev); |
838 | if (IS_ERR(data->hwmon_dev)) { |
839 | err = PTR_ERR(data->hwmon_dev); |
840 | goto exit_remove_files; |
841 | } |
842 | return 0; |
843 | |
844 | exit_remove_files: |
845 | for (i = 0; i < ARRAY_SIZE(vt8231_group_volts); i++) |
846 | sysfs_remove_group(&pdev->dev.kobj, &vt8231_group_volts[i]); |
847 | |
848 | for (i = 0; i < ARRAY_SIZE(vt8231_group_temps); i++) |
849 | sysfs_remove_group(&pdev->dev.kobj, &vt8231_group_temps[i]); |
850 | |
851 | sysfs_remove_group(&pdev->dev.kobj, &vt8231_group); |
852 | return err; |
853 | } |
854 | |
855 | static int vt8231_remove(struct platform_device *pdev) |
856 | { |
857 | struct vt8231_data *data = platform_get_drvdata(pdev); |
858 | int i; |
859 | |
860 | hwmon_device_unregister(data->hwmon_dev); |
861 | |
862 | for (i = 0; i < ARRAY_SIZE(vt8231_group_volts); i++) |
863 | sysfs_remove_group(&pdev->dev.kobj, &vt8231_group_volts[i]); |
864 | |
865 | for (i = 0; i < ARRAY_SIZE(vt8231_group_temps); i++) |
866 | sysfs_remove_group(&pdev->dev.kobj, &vt8231_group_temps[i]); |
867 | |
868 | sysfs_remove_group(&pdev->dev.kobj, &vt8231_group); |
869 | |
870 | return 0; |
871 | } |
872 | |
873 | static void vt8231_init_device(struct vt8231_data *data) |
874 | { |
875 | vt8231_write_value(data, VT8231_REG_TEMP1_CONFIG, 0); |
876 | vt8231_write_value(data, VT8231_REG_TEMP2_CONFIG, 0); |
877 | } |
878 | |
879 | static struct vt8231_data *vt8231_update_device(struct device *dev) |
880 | { |
881 | struct vt8231_data *data = dev_get_drvdata(dev); |
882 | int i; |
883 | u16 low; |
884 | |
885 | mutex_lock(&data->update_lock); |
886 | |
887 | if (time_after(jiffies, data->last_updated + HZ + HZ / 2) |
888 | || !data->valid) { |
889 | for (i = 0; i < 6; i++) { |
890 | if (ISVOLT(i, data->uch_config)) { |
891 | data->in[i] = vt8231_read_value(data, |
892 | regvolt[i]); |
893 | data->in_min[i] = vt8231_read_value(data, |
894 | regvoltmin[i]); |
895 | data->in_max[i] = vt8231_read_value(data, |
896 | regvoltmax[i]); |
897 | } |
898 | } |
899 | for (i = 0; i < 2; i++) { |
900 | data->fan[i] = vt8231_read_value(data, |
901 | VT8231_REG_FAN(i)); |
902 | data->fan_min[i] = vt8231_read_value(data, |
903 | VT8231_REG_FAN_MIN(i)); |
904 | } |
905 | |
906 | low = vt8231_read_value(data, VT8231_REG_TEMP_LOW01); |
907 | low = (low >> 6) | ((low & 0x30) >> 2) |
908 | | (vt8231_read_value(data, VT8231_REG_TEMP_LOW25) << 4); |
909 | for (i = 0; i < 6; i++) { |
910 | if (ISTEMP(i, data->uch_config)) { |
911 | data->temp[i] = (vt8231_read_value(data, |
912 | regtemp[i]) << 2) |
913 | | ((low >> (2 * i)) & 0x03); |
914 | data->temp_max[i] = vt8231_read_value(data, |
915 | regtempmax[i]); |
916 | data->temp_min[i] = vt8231_read_value(data, |
917 | regtempmin[i]); |
918 | } |
919 | } |
920 | |
921 | i = vt8231_read_value(data, VT8231_REG_FANDIV); |
922 | data->fan_div[0] = (i >> 4) & 0x03; |
923 | data->fan_div[1] = i >> 6; |
924 | data->alarms = vt8231_read_value(data, VT8231_REG_ALARM1) | |
925 | (vt8231_read_value(data, VT8231_REG_ALARM2) << 8); |
926 | |
927 | /* Set alarm flags correctly */ |
928 | if (!data->fan[0] && data->fan_min[0]) |
929 | data->alarms |= 0x40; |
930 | else if (data->fan[0] && !data->fan_min[0]) |
931 | data->alarms &= ~0x40; |
932 | |
933 | if (!data->fan[1] && data->fan_min[1]) |
934 | data->alarms |= 0x80; |
935 | else if (data->fan[1] && !data->fan_min[1]) |
936 | data->alarms &= ~0x80; |
937 | |
938 | data->last_updated = jiffies; |
939 | data->valid = 1; |
940 | } |
941 | |
942 | mutex_unlock(&data->update_lock); |
943 | |
944 | return data; |
945 | } |
946 | |
947 | static int vt8231_device_add(unsigned short address) |
948 | { |
949 | struct resource res = { |
950 | .start = address, |
951 | .end = address + VT8231_EXTENT - 1, |
952 | .name = "vt8231", |
953 | .flags = IORESOURCE_IO, |
954 | }; |
955 | int err; |
956 | |
957 | err = acpi_check_resource_conflict(&res); |
958 | if (err) |
959 | goto exit; |
960 | |
961 | pdev = platform_device_alloc("vt8231", address); |
962 | if (!pdev) { |
963 | err = -ENOMEM; |
964 | pr_err("Device allocation failed\n"); |
965 | goto exit; |
966 | } |
967 | |
968 | err = platform_device_add_resources(pdev, &res, 1); |
969 | if (err) { |
970 | pr_err("Device resource addition failed (%d)\n", err); |
971 | goto exit_device_put; |
972 | } |
973 | |
974 | err = platform_device_add(pdev); |
975 | if (err) { |
976 | pr_err("Device addition failed (%d)\n", err); |
977 | goto exit_device_put; |
978 | } |
979 | |
980 | return 0; |
981 | |
982 | exit_device_put: |
983 | platform_device_put(pdev); |
984 | exit: |
985 | return err; |
986 | } |
987 | |
988 | static int vt8231_pci_probe(struct pci_dev *dev, |
989 | const struct pci_device_id *id) |
990 | { |
991 | u16 address, val; |
992 | if (force_addr) { |
993 | address = force_addr & 0xff00; |
994 | dev_warn(&dev->dev, "Forcing ISA address 0x%x\n", |
995 | address); |
996 | |
997 | if (PCIBIOS_SUCCESSFUL != |
998 | pci_write_config_word(dev, VT8231_BASE_REG, address | 1)) |
999 | return -ENODEV; |
1000 | } |
1001 | |
1002 | if (PCIBIOS_SUCCESSFUL != pci_read_config_word(dev, VT8231_BASE_REG, |
1003 | &val)) |
1004 | return -ENODEV; |
1005 | |
1006 | address = val & ~(VT8231_EXTENT - 1); |
1007 | if (address == 0) { |
1008 | dev_err(&dev->dev, "base address not set - upgrade BIOS or use force_addr=0xaddr\n"); |
1009 | return -ENODEV; |
1010 | } |
1011 | |
1012 | if (PCIBIOS_SUCCESSFUL != pci_read_config_word(dev, VT8231_ENABLE_REG, |
1013 | &val)) |
1014 | return -ENODEV; |
1015 | |
1016 | if (!(val & 0x0001)) { |
1017 | dev_warn(&dev->dev, "enabling sensors\n"); |
1018 | if (PCIBIOS_SUCCESSFUL != |
1019 | pci_write_config_word(dev, VT8231_ENABLE_REG, |
1020 | val | 0x0001)) |
1021 | return -ENODEV; |
1022 | } |
1023 | |
1024 | if (platform_driver_register(&vt8231_driver)) |
1025 | goto exit; |
1026 | |
1027 | /* Sets global pdev as a side effect */ |
1028 | if (vt8231_device_add(address)) |
1029 | goto exit_unregister; |
1030 | |
1031 | /* |
1032 | * Always return failure here. This is to allow other drivers to bind |
1033 | * to this pci device. We don't really want to have control over the |
1034 | * pci device, we only wanted to read as few register values from it. |
1035 | */ |
1036 | |
1037 | /* |
1038 | * We do, however, mark ourselves as using the PCI device to stop it |
1039 | * getting unloaded. |
1040 | */ |
1041 | s_bridge = pci_dev_get(dev); |
1042 | return -ENODEV; |
1043 | |
1044 | exit_unregister: |
1045 | platform_driver_unregister(&vt8231_driver); |
1046 | exit: |
1047 | return -ENODEV; |
1048 | } |
1049 | |
1050 | static int __init sm_vt8231_init(void) |
1051 | { |
1052 | return pci_register_driver(&vt8231_pci_driver); |
1053 | } |
1054 | |
1055 | static void __exit sm_vt8231_exit(void) |
1056 | { |
1057 | pci_unregister_driver(&vt8231_pci_driver); |
1058 | if (s_bridge != NULL) { |
1059 | platform_device_unregister(pdev); |
1060 | platform_driver_unregister(&vt8231_driver); |
1061 | pci_dev_put(s_bridge); |
1062 | s_bridge = NULL; |
1063 | } |
1064 | } |
1065 | |
1066 | MODULE_AUTHOR("Roger Lucas <vt8231@hiddenengine.co.uk>"); |
1067 | MODULE_DESCRIPTION("VT8231 sensors"); |
1068 | MODULE_LICENSE("GPL"); |
1069 | |
1070 | module_init(sm_vt8231_init); |
1071 | module_exit(sm_vt8231_exit); |
1072 |
Branches:
ben-wpan
ben-wpan-stefan
javiroman/ks7010
jz-2.6.34
jz-2.6.34-rc5
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Tags:
od-2011-09-04
od-2011-09-18
v2.6.34-rc5
v2.6.34-rc6
v2.6.34-rc7
v3.9