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24c1aa85 NG |
1 | /* |
2 | * IBM PowerNV platform sensors for temperature/fan/voltage/power | |
3 | * Copyright (C) 2014 IBM | |
4 | * | |
5 | * This program is free software; you can redistribute it and/or modify | |
6 | * it under the terms of the GNU General Public License as published by | |
7 | * the Free Software Foundation; either version 2 of the License, or | |
8 | * (at your option) any later version. | |
9 | * | |
10 | * This program is distributed in the hope that it will be useful, | |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | * GNU General Public License for more details. | |
14 | * | |
15 | * You should have received a copy of the GNU General Public License | |
16 | * along with this program. | |
17 | */ | |
18 | ||
19 | #define DRVNAME "ibmpowernv" | |
20 | #define pr_fmt(fmt) DRVNAME ": " fmt | |
21 | ||
22 | #include <linux/init.h> | |
23 | #include <linux/module.h> | |
24 | #include <linux/kernel.h> | |
25 | #include <linux/hwmon.h> | |
26 | #include <linux/hwmon-sysfs.h> | |
27 | #include <linux/of.h> | |
28 | #include <linux/slab.h> | |
29 | ||
30 | #include <linux/platform_device.h> | |
31 | #include <asm/opal.h> | |
32 | #include <linux/err.h> | |
3df2f59f | 33 | #include <asm/cputhreads.h> |
8416915c | 34 | #include <asm/smp.h> |
24c1aa85 NG |
35 | |
36 | #define MAX_ATTR_LEN 32 | |
2bcd3787 | 37 | #define MAX_LABEL_LEN 64 |
24c1aa85 NG |
38 | |
39 | /* Sensor suffix name from DT */ | |
40 | #define DT_FAULT_ATTR_SUFFIX "faulted" | |
41 | #define DT_DATA_ATTR_SUFFIX "data" | |
42 | #define DT_THRESHOLD_ATTR_SUFFIX "thrs" | |
43 | ||
44 | /* | |
45 | * Enumerates all the types of sensors in the POWERNV platform and does index | |
46 | * into 'struct sensor_group' | |
47 | */ | |
48 | enum sensors { | |
49 | FAN, | |
96124610 | 50 | TEMP, |
24c1aa85 NG |
51 | POWER_SUPPLY, |
52 | POWER_INPUT, | |
3a2b3d37 | 53 | CURRENT, |
24c1aa85 NG |
54 | MAX_SENSOR_TYPE, |
55 | }; | |
56 | ||
14681637 CLG |
57 | #define INVALID_INDEX (-1U) |
58 | ||
3ab52160 CLG |
59 | /* |
60 | * 'compatible' string properties for sensor types as defined in old | |
61 | * PowerNV firmware (skiboot). These are ordered as 'enum sensors'. | |
62 | */ | |
63 | static const char * const legacy_compatibles[] = { | |
64 | "ibm,opal-sensor-cooling-fan", | |
65 | "ibm,opal-sensor-amb-temp", | |
66 | "ibm,opal-sensor-power-supply", | |
67 | "ibm,opal-sensor-power" | |
68 | }; | |
69 | ||
24c1aa85 | 70 | static struct sensor_group { |
3ab52160 | 71 | const char *name; /* matches property 'sensor-type' */ |
24c1aa85 NG |
72 | struct attribute_group group; |
73 | u32 attr_count; | |
fcaf57b6 | 74 | u32 hwmon_index; |
24c1aa85 | 75 | } sensor_groups[] = { |
3ab52160 CLG |
76 | { "fan" }, |
77 | { "temp" }, | |
78 | { "in" }, | |
3a2b3d37 SB |
79 | { "power" }, |
80 | { "curr" }, | |
24c1aa85 NG |
81 | }; |
82 | ||
83 | struct sensor_data { | |
84 | u32 id; /* An opaque id of the firmware for each sensor */ | |
fcaf57b6 CLG |
85 | u32 hwmon_index; |
86 | u32 opal_index; | |
24c1aa85 | 87 | enum sensors type; |
2bcd3787 | 88 | char label[MAX_LABEL_LEN]; |
24c1aa85 NG |
89 | char name[MAX_ATTR_LEN]; |
90 | struct device_attribute dev_attr; | |
91 | }; | |
92 | ||
93 | struct platform_data { | |
94 | const struct attribute_group *attr_groups[MAX_SENSOR_TYPE + 1]; | |
95 | u32 sensors_count; /* Total count of sensors from each group */ | |
96 | }; | |
97 | ||
24c1aa85 NG |
98 | static ssize_t show_sensor(struct device *dev, struct device_attribute *devattr, |
99 | char *buf) | |
100 | { | |
101 | struct sensor_data *sdata = container_of(devattr, struct sensor_data, | |
102 | dev_attr); | |
103 | ssize_t ret; | |
104 | u32 x; | |
105 | ||
106 | ret = opal_get_sensor_data(sdata->id, &x); | |
107 | if (ret) | |
108 | return ret; | |
109 | ||
110 | /* Convert temperature to milli-degrees */ | |
96124610 | 111 | if (sdata->type == TEMP) |
24c1aa85 NG |
112 | x *= 1000; |
113 | /* Convert power to micro-watts */ | |
114 | else if (sdata->type == POWER_INPUT) | |
115 | x *= 1000000; | |
116 | ||
117 | return sprintf(buf, "%u\n", x); | |
118 | } | |
119 | ||
2bcd3787 CLG |
120 | static ssize_t show_label(struct device *dev, struct device_attribute *devattr, |
121 | char *buf) | |
122 | { | |
123 | struct sensor_data *sdata = container_of(devattr, struct sensor_data, | |
124 | dev_attr); | |
125 | ||
126 | return sprintf(buf, "%s\n", sdata->label); | |
127 | } | |
128 | ||
3df2f59f CLG |
129 | static int __init get_logical_cpu(int hwcpu) |
130 | { | |
131 | int cpu; | |
132 | ||
133 | for_each_possible_cpu(cpu) | |
134 | if (get_hard_smp_processor_id(cpu) == hwcpu) | |
135 | return cpu; | |
136 | ||
137 | return -ENOENT; | |
138 | } | |
139 | ||
2bcd3787 CLG |
140 | static void __init make_sensor_label(struct device_node *np, |
141 | struct sensor_data *sdata, | |
142 | const char *label) | |
143 | { | |
3df2f59f | 144 | u32 id; |
2bcd3787 CLG |
145 | size_t n; |
146 | ||
147 | n = snprintf(sdata->label, sizeof(sdata->label), "%s", label); | |
3df2f59f CLG |
148 | |
149 | /* | |
150 | * Core temp pretty print | |
151 | */ | |
152 | if (!of_property_read_u32(np, "ibm,pir", &id)) { | |
153 | int cpuid = get_logical_cpu(id); | |
154 | ||
155 | if (cpuid >= 0) | |
156 | /* | |
157 | * The digital thermal sensors are associated | |
acf32964 | 158 | * with a core. |
3df2f59f CLG |
159 | */ |
160 | n += snprintf(sdata->label + n, | |
acf32964 MN |
161 | sizeof(sdata->label) - n, " %d", |
162 | cpuid); | |
3df2f59f CLG |
163 | else |
164 | n += snprintf(sdata->label + n, | |
165 | sizeof(sdata->label) - n, " phy%d", id); | |
166 | } | |
167 | ||
168 | /* | |
169 | * Membuffer pretty print | |
170 | */ | |
171 | if (!of_property_read_u32(np, "ibm,chip-id", &id)) | |
172 | n += snprintf(sdata->label + n, sizeof(sdata->label) - n, | |
173 | " %d", id & 0xffff); | |
2bcd3787 CLG |
174 | } |
175 | ||
176 | static int get_sensor_index_attr(const char *name, u32 *index, char *attr) | |
24c1aa85 NG |
177 | { |
178 | char *hash_pos = strchr(name, '#'); | |
179 | char buf[8] = { 0 }; | |
180 | char *dash_pos; | |
181 | u32 copy_len; | |
182 | int err; | |
183 | ||
184 | if (!hash_pos) | |
185 | return -EINVAL; | |
186 | ||
187 | dash_pos = strchr(hash_pos, '-'); | |
188 | if (!dash_pos) | |
189 | return -EINVAL; | |
190 | ||
191 | copy_len = dash_pos - hash_pos - 1; | |
192 | if (copy_len >= sizeof(buf)) | |
193 | return -EINVAL; | |
194 | ||
195 | strncpy(buf, hash_pos + 1, copy_len); | |
196 | ||
197 | err = kstrtou32(buf, 10, index); | |
198 | if (err) | |
199 | return err; | |
200 | ||
201 | strncpy(attr, dash_pos + 1, MAX_ATTR_LEN); | |
202 | ||
203 | return 0; | |
204 | } | |
205 | ||
ccc9ac6c CLG |
206 | static const char *convert_opal_attr_name(enum sensors type, |
207 | const char *opal_attr) | |
208 | { | |
209 | const char *attr_name = NULL; | |
210 | ||
211 | if (!strcmp(opal_attr, DT_FAULT_ATTR_SUFFIX)) { | |
212 | attr_name = "fault"; | |
213 | } else if (!strcmp(opal_attr, DT_DATA_ATTR_SUFFIX)) { | |
214 | attr_name = "input"; | |
215 | } else if (!strcmp(opal_attr, DT_THRESHOLD_ATTR_SUFFIX)) { | |
216 | if (type == TEMP) | |
217 | attr_name = "max"; | |
218 | else if (type == FAN) | |
219 | attr_name = "min"; | |
220 | } | |
221 | ||
222 | return attr_name; | |
223 | } | |
224 | ||
24c1aa85 NG |
225 | /* |
226 | * This function translates the DT node name into the 'hwmon' attribute name. | |
227 | * IBMPOWERNV device node appear like cooling-fan#2-data, amb-temp#1-thrs etc. | |
228 | * which need to be mapped as fan2_input, temp1_max respectively before | |
229 | * populating them inside hwmon device class. | |
230 | */ | |
f9f54f16 CLG |
231 | static const char *parse_opal_node_name(const char *node_name, |
232 | enum sensors type, u32 *index) | |
24c1aa85 NG |
233 | { |
234 | char attr_suffix[MAX_ATTR_LEN]; | |
ccc9ac6c | 235 | const char *attr_name; |
24c1aa85 NG |
236 | int err; |
237 | ||
f9f54f16 CLG |
238 | err = get_sensor_index_attr(node_name, index, attr_suffix); |
239 | if (err) | |
240 | return ERR_PTR(err); | |
24c1aa85 | 241 | |
ccc9ac6c CLG |
242 | attr_name = convert_opal_attr_name(type, attr_suffix); |
243 | if (!attr_name) | |
f9f54f16 | 244 | return ERR_PTR(-ENOENT); |
24c1aa85 | 245 | |
f9f54f16 | 246 | return attr_name; |
24c1aa85 NG |
247 | } |
248 | ||
c4ad4720 CLG |
249 | static int get_sensor_type(struct device_node *np) |
250 | { | |
251 | enum sensors type; | |
14681637 | 252 | const char *str; |
c4ad4720 | 253 | |
3ab52160 CLG |
254 | for (type = 0; type < ARRAY_SIZE(legacy_compatibles); type++) { |
255 | if (of_device_is_compatible(np, legacy_compatibles[type])) | |
c4ad4720 CLG |
256 | return type; |
257 | } | |
14681637 CLG |
258 | |
259 | /* | |
260 | * Let's check if we have a newer device tree | |
261 | */ | |
262 | if (!of_device_is_compatible(np, "ibm,opal-sensor")) | |
263 | return MAX_SENSOR_TYPE; | |
264 | ||
265 | if (of_property_read_string(np, "sensor-type", &str)) | |
266 | return MAX_SENSOR_TYPE; | |
267 | ||
268 | for (type = 0; type < MAX_SENSOR_TYPE; type++) | |
269 | if (!strcmp(str, sensor_groups[type].name)) | |
270 | return type; | |
271 | ||
c4ad4720 CLG |
272 | return MAX_SENSOR_TYPE; |
273 | } | |
274 | ||
fcaf57b6 CLG |
275 | static u32 get_sensor_hwmon_index(struct sensor_data *sdata, |
276 | struct sensor_data *sdata_table, int count) | |
277 | { | |
278 | int i; | |
279 | ||
14681637 CLG |
280 | /* |
281 | * We don't use the OPAL index on newer device trees | |
282 | */ | |
283 | if (sdata->opal_index != INVALID_INDEX) { | |
284 | for (i = 0; i < count; i++) | |
285 | if (sdata_table[i].opal_index == sdata->opal_index && | |
286 | sdata_table[i].type == sdata->type) | |
287 | return sdata_table[i].hwmon_index; | |
288 | } | |
fcaf57b6 CLG |
289 | return ++sensor_groups[sdata->type].hwmon_index; |
290 | } | |
291 | ||
8de303ba | 292 | static int populate_attr_groups(struct platform_device *pdev) |
24c1aa85 NG |
293 | { |
294 | struct platform_data *pdata = platform_get_drvdata(pdev); | |
295 | const struct attribute_group **pgroups = pdata->attr_groups; | |
296 | struct device_node *opal, *np; | |
297 | enum sensors type; | |
298 | ||
299 | opal = of_find_node_by_path("/ibm,opal/sensors"); | |
24c1aa85 | 300 | for_each_child_of_node(opal, np) { |
2bcd3787 CLG |
301 | const char *label; |
302 | ||
24c1aa85 NG |
303 | if (np->name == NULL) |
304 | continue; | |
305 | ||
c4ad4720 | 306 | type = get_sensor_type(np); |
2bcd3787 CLG |
307 | if (type == MAX_SENSOR_TYPE) |
308 | continue; | |
309 | ||
310 | sensor_groups[type].attr_count++; | |
311 | ||
312 | /* | |
996cf5a5 | 313 | * add attributes for labels, min and max |
2bcd3787 CLG |
314 | */ |
315 | if (!of_property_read_string(np, "label", &label)) | |
c4ad4720 | 316 | sensor_groups[type].attr_count++; |
996cf5a5 SB |
317 | if (of_find_property(np, "sensor-data-min", NULL)) |
318 | sensor_groups[type].attr_count++; | |
319 | if (of_find_property(np, "sensor-data-max", NULL)) | |
320 | sensor_groups[type].attr_count++; | |
24c1aa85 NG |
321 | } |
322 | ||
323 | of_node_put(opal); | |
324 | ||
325 | for (type = 0; type < MAX_SENSOR_TYPE; type++) { | |
326 | sensor_groups[type].group.attrs = devm_kzalloc(&pdev->dev, | |
327 | sizeof(struct attribute *) * | |
328 | (sensor_groups[type].attr_count + 1), | |
329 | GFP_KERNEL); | |
330 | if (!sensor_groups[type].group.attrs) | |
331 | return -ENOMEM; | |
332 | ||
333 | pgroups[type] = &sensor_groups[type].group; | |
334 | pdata->sensors_count += sensor_groups[type].attr_count; | |
335 | sensor_groups[type].attr_count = 0; | |
336 | } | |
337 | ||
338 | return 0; | |
339 | } | |
340 | ||
9e4f74b1 CLG |
341 | static void create_hwmon_attr(struct sensor_data *sdata, const char *attr_name, |
342 | ssize_t (*show)(struct device *dev, | |
343 | struct device_attribute *attr, | |
344 | char *buf)) | |
345 | { | |
346 | snprintf(sdata->name, MAX_ATTR_LEN, "%s%d_%s", | |
347 | sensor_groups[sdata->type].name, sdata->hwmon_index, | |
348 | attr_name); | |
349 | ||
350 | sysfs_attr_init(&sdata->dev_attr.attr); | |
351 | sdata->dev_attr.attr.name = sdata->name; | |
352 | sdata->dev_attr.attr.mode = S_IRUGO; | |
353 | sdata->dev_attr.show = show; | |
354 | } | |
355 | ||
996cf5a5 SB |
356 | static void populate_sensor(struct sensor_data *sdata, int od, int hd, int sid, |
357 | const char *attr_name, enum sensors type, | |
358 | const struct attribute_group *pgroup, | |
359 | ssize_t (*show)(struct device *dev, | |
360 | struct device_attribute *attr, | |
361 | char *buf)) | |
362 | { | |
363 | sdata->id = sid; | |
364 | sdata->type = type; | |
365 | sdata->opal_index = od; | |
366 | sdata->hwmon_index = hd; | |
367 | create_hwmon_attr(sdata, attr_name, show); | |
368 | pgroup->attrs[sensor_groups[type].attr_count++] = &sdata->dev_attr.attr; | |
369 | } | |
370 | ||
371 | static char *get_max_attr(enum sensors type) | |
372 | { | |
373 | switch (type) { | |
374 | case POWER_INPUT: | |
375 | return "input_highest"; | |
376 | default: | |
377 | return "highest"; | |
378 | } | |
379 | } | |
380 | ||
381 | static char *get_min_attr(enum sensors type) | |
382 | { | |
383 | switch (type) { | |
384 | case POWER_INPUT: | |
385 | return "input_lowest"; | |
386 | default: | |
387 | return "lowest"; | |
388 | } | |
389 | } | |
390 | ||
24c1aa85 NG |
391 | /* |
392 | * Iterate through the device tree for each child of 'sensors' node, create | |
393 | * a sysfs attribute file, the file is named by translating the DT node name | |
394 | * to the name required by the higher 'hwmon' driver like fan1_input, temp1_max | |
395 | * etc.. | |
396 | */ | |
8de303ba | 397 | static int create_device_attrs(struct platform_device *pdev) |
24c1aa85 NG |
398 | { |
399 | struct platform_data *pdata = platform_get_drvdata(pdev); | |
400 | const struct attribute_group **pgroups = pdata->attr_groups; | |
401 | struct device_node *opal, *np; | |
402 | struct sensor_data *sdata; | |
18d03f3c | 403 | u32 sensor_id; |
24c1aa85 NG |
404 | enum sensors type; |
405 | u32 count = 0; | |
406 | int err = 0; | |
407 | ||
408 | opal = of_find_node_by_path("/ibm,opal/sensors"); | |
409 | sdata = devm_kzalloc(&pdev->dev, pdata->sensors_count * sizeof(*sdata), | |
410 | GFP_KERNEL); | |
411 | if (!sdata) { | |
412 | err = -ENOMEM; | |
413 | goto exit_put_node; | |
414 | } | |
415 | ||
416 | for_each_child_of_node(opal, np) { | |
f9f54f16 CLG |
417 | const char *attr_name; |
418 | u32 opal_index; | |
2bcd3787 | 419 | const char *label; |
f9f54f16 | 420 | |
24c1aa85 NG |
421 | if (np->name == NULL) |
422 | continue; | |
423 | ||
c4ad4720 | 424 | type = get_sensor_type(np); |
24c1aa85 NG |
425 | if (type == MAX_SENSOR_TYPE) |
426 | continue; | |
427 | ||
14681637 CLG |
428 | /* |
429 | * Newer device trees use a "sensor-data" property | |
430 | * name for input. | |
431 | */ | |
432 | if (of_property_read_u32(np, "sensor-id", &sensor_id) && | |
433 | of_property_read_u32(np, "sensor-data", &sensor_id)) { | |
24c1aa85 NG |
434 | dev_info(&pdev->dev, |
435 | "'sensor-id' missing in the node '%s'\n", | |
436 | np->name); | |
437 | continue; | |
438 | } | |
439 | ||
18d03f3c | 440 | sdata[count].id = sensor_id; |
24c1aa85 | 441 | sdata[count].type = type; |
f9f54f16 | 442 | |
14681637 CLG |
443 | /* |
444 | * If we can not parse the node name, it means we are | |
445 | * running on a newer device tree. We can just forget | |
446 | * about the OPAL index and use a defaut value for the | |
447 | * hwmon attribute name | |
448 | */ | |
f9f54f16 CLG |
449 | attr_name = parse_opal_node_name(np->name, type, &opal_index); |
450 | if (IS_ERR(attr_name)) { | |
14681637 CLG |
451 | attr_name = "input"; |
452 | opal_index = INVALID_INDEX; | |
f9f54f16 CLG |
453 | } |
454 | ||
fcaf57b6 CLG |
455 | sdata[count].opal_index = opal_index; |
456 | sdata[count].hwmon_index = | |
457 | get_sensor_hwmon_index(&sdata[count], sdata, count); | |
458 | ||
9e4f74b1 | 459 | create_hwmon_attr(&sdata[count], attr_name, show_sensor); |
24c1aa85 NG |
460 | |
461 | pgroups[type]->attrs[sensor_groups[type].attr_count++] = | |
462 | &sdata[count++].dev_attr.attr; | |
2bcd3787 CLG |
463 | |
464 | if (!of_property_read_string(np, "label", &label)) { | |
465 | /* | |
466 | * For the label attribute, we can reuse the | |
467 | * "properties" of the previous "input" | |
468 | * attribute. They are related to the same | |
469 | * sensor. | |
470 | */ | |
2bcd3787 CLG |
471 | |
472 | make_sensor_label(np, &sdata[count], label); | |
996cf5a5 SB |
473 | populate_sensor(&sdata[count], opal_index, |
474 | sdata[count - 1].hwmon_index, | |
475 | sensor_id, "label", type, pgroups[type], | |
476 | show_label); | |
477 | count++; | |
478 | } | |
2bcd3787 | 479 | |
996cf5a5 SB |
480 | if (!of_property_read_u32(np, "sensor-data-max", &sensor_id)) { |
481 | attr_name = get_max_attr(type); | |
482 | populate_sensor(&sdata[count], opal_index, | |
483 | sdata[count - 1].hwmon_index, | |
484 | sensor_id, attr_name, type, | |
485 | pgroups[type], show_sensor); | |
486 | count++; | |
487 | } | |
2bcd3787 | 488 | |
996cf5a5 SB |
489 | if (!of_property_read_u32(np, "sensor-data-min", &sensor_id)) { |
490 | attr_name = get_min_attr(type); | |
491 | populate_sensor(&sdata[count], opal_index, | |
492 | sdata[count - 1].hwmon_index, | |
493 | sensor_id, attr_name, type, | |
494 | pgroups[type], show_sensor); | |
495 | count++; | |
2bcd3787 | 496 | } |
24c1aa85 NG |
497 | } |
498 | ||
499 | exit_put_node: | |
500 | of_node_put(opal); | |
501 | return err; | |
502 | } | |
503 | ||
8de303ba | 504 | static int ibmpowernv_probe(struct platform_device *pdev) |
24c1aa85 NG |
505 | { |
506 | struct platform_data *pdata; | |
507 | struct device *hwmon_dev; | |
508 | int err; | |
509 | ||
510 | pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL); | |
511 | if (!pdata) | |
512 | return -ENOMEM; | |
513 | ||
514 | platform_set_drvdata(pdev, pdata); | |
515 | pdata->sensors_count = 0; | |
516 | err = populate_attr_groups(pdev); | |
517 | if (err) | |
518 | return err; | |
519 | ||
520 | /* Create sysfs attribute data for each sensor found in the DT */ | |
521 | err = create_device_attrs(pdev); | |
522 | if (err) | |
523 | return err; | |
524 | ||
525 | /* Finally, register with hwmon */ | |
526 | hwmon_dev = devm_hwmon_device_register_with_groups(&pdev->dev, DRVNAME, | |
527 | pdata, | |
528 | pdata->attr_groups); | |
529 | ||
530 | return PTR_ERR_OR_ZERO(hwmon_dev); | |
531 | } | |
532 | ||
8de303ba NG |
533 | static const struct platform_device_id opal_sensor_driver_ids[] = { |
534 | { | |
535 | .name = "opal-sensor", | |
536 | }, | |
537 | { } | |
538 | }; | |
539 | MODULE_DEVICE_TABLE(platform, opal_sensor_driver_ids); | |
540 | ||
0b056b29 CLG |
541 | static const struct of_device_id opal_sensor_match[] = { |
542 | { .compatible = "ibm,opal-sensor" }, | |
543 | { }, | |
544 | }; | |
545 | MODULE_DEVICE_TABLE(of, opal_sensor_match); | |
546 | ||
24c1aa85 | 547 | static struct platform_driver ibmpowernv_driver = { |
8de303ba NG |
548 | .probe = ibmpowernv_probe, |
549 | .id_table = opal_sensor_driver_ids, | |
550 | .driver = { | |
8de303ba | 551 | .name = DRVNAME, |
0b056b29 | 552 | .of_match_table = opal_sensor_match, |
24c1aa85 NG |
553 | }, |
554 | }; | |
555 | ||
3bdec670 | 556 | module_platform_driver(ibmpowernv_driver); |
24c1aa85 NG |
557 | |
558 | MODULE_AUTHOR("Neelesh Gupta <neelegup@linux.vnet.ibm.com>"); | |
559 | MODULE_DESCRIPTION("IBM POWERNV platform sensors"); | |
560 | MODULE_LICENSE("GPL"); |