1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * INT3400 thermal driver
4 *
5 * Copyright (C) 2014, Intel Corporation
6 * Authors: Zhang Rui <rui.zhang@intel.com>
7 */
8
9 #include <linux/module.h>
10 #include <linux/platform_device.h>
11 #include <linux/acpi.h>
12 #include <linux/thermal.h>
13 #include "acpi_thermal_rel.h"
14
15 #define INT3400_THERMAL_TABLE_CHANGED 0x83
16 #define INT3400_ODVP_CHANGED 0x88
17 #define INT3400_KEEP_ALIVE 0xA0
18 #define INT3400_FAKE_TEMP (20 * 1000) /* faked temp sensor with 20C */
19
20 enum int3400_thermal_uuid {
21 INT3400_THERMAL_ACTIVE = 0,
22 INT3400_THERMAL_PASSIVE_1,
23 INT3400_THERMAL_CRITICAL,
24 INT3400_THERMAL_ADAPTIVE_PERFORMANCE,
25 INT3400_THERMAL_EMERGENCY_CALL_MODE,
26 INT3400_THERMAL_PASSIVE_2,
27 INT3400_THERMAL_POWER_BOSS,
28 INT3400_THERMAL_VIRTUAL_SENSOR,
29 INT3400_THERMAL_COOLING_MODE,
30 INT3400_THERMAL_HARDWARE_DUTY_CYCLING,
31 INT3400_THERMAL_MAXIMUM_UUID,
32 };
33
34 static char *int3400_thermal_uuids[INT3400_THERMAL_MAXIMUM_UUID] = {
35 "3A95C389-E4B8-4629-A526-C52C88626BAE",
36 "42A441D6-AE6A-462b-A84B-4A8CE79027D3",
37 "97C68AE7-15FA-499c-B8C9-5DA81D606E0A",
38 "63BE270F-1C11-48FD-A6F7-3AF253FF3E2D",
39 "5349962F-71E6-431D-9AE8-0A635B710AEE",
40 "9E04115A-AE87-4D1C-9500-0F3E340BFE75",
41 "F5A35014-C209-46A4-993A-EB56DE7530A1",
42 "6ED722A7-9240-48A5-B479-31EEF723D7CF",
43 "16CAF1B7-DD38-40ED-B1C1-1B8A1913D531",
44 "BE84BABF-C4D4-403D-B495-3128FD44dAC1",
45 };
46
47 struct odvp_attr;
48
49 struct int3400_thermal_priv {
50 struct acpi_device *adev;
51 struct platform_device *pdev;
52 struct thermal_zone_device *thermal;
53 int art_count;
54 struct art *arts;
55 int trt_count;
56 struct trt *trts;
57 u32 uuid_bitmap;
58 int rel_misc_dev_res;
59 int current_uuid_index;
60 char *data_vault;
61 int odvp_count;
62 int *odvp;
63 u32 os_uuid_mask;
64 int production_mode;
65 struct odvp_attr *odvp_attrs;
66 };
67
68 static int evaluate_odvp(struct int3400_thermal_priv *priv);
69
70 struct odvp_attr {
71 int odvp;
72 struct int3400_thermal_priv *priv;
73 struct device_attribute attr;
74 };
75
76 static BIN_ATTR_SIMPLE_RO(data_vault);
77
78 static struct bin_attribute *data_attributes[] = {
79 &bin_attr_data_vault,
80 NULL,
81 };
82
imok_store(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)83 static ssize_t imok_store(struct device *dev, struct device_attribute *attr,
84 const char *buf, size_t count)
85 {
86 struct int3400_thermal_priv *priv = dev_get_drvdata(dev);
87 acpi_status status;
88 int input, ret;
89
90 ret = kstrtouint(buf, 10, &input);
91 if (ret)
92 return ret;
93 status = acpi_execute_simple_method(priv->adev->handle, "IMOK", input);
94 if (ACPI_FAILURE(status))
95 return -EIO;
96
97 return count;
98 }
99
100 static DEVICE_ATTR_WO(imok);
101
102 static struct attribute *imok_attr[] = {
103 &dev_attr_imok.attr,
104 NULL
105 };
106
107 static const struct attribute_group imok_attribute_group = {
108 .attrs = imok_attr,
109 };
110
111 static const struct attribute_group data_attribute_group = {
112 .bin_attrs = data_attributes,
113 };
114
available_uuids_show(struct device * dev,struct device_attribute * attr,char * buf)115 static ssize_t available_uuids_show(struct device *dev,
116 struct device_attribute *attr,
117 char *buf)
118 {
119 struct int3400_thermal_priv *priv = dev_get_drvdata(dev);
120 int i;
121 int length = 0;
122
123 if (!priv->uuid_bitmap)
124 return sprintf(buf, "UNKNOWN\n");
125
126 for (i = 0; i < INT3400_THERMAL_MAXIMUM_UUID; i++) {
127 if (priv->uuid_bitmap & (1 << i))
128 length += sysfs_emit_at(buf, length, "%s\n", int3400_thermal_uuids[i]);
129 }
130
131 return length;
132 }
133
current_uuid_show(struct device * dev,struct device_attribute * devattr,char * buf)134 static ssize_t current_uuid_show(struct device *dev,
135 struct device_attribute *devattr, char *buf)
136 {
137 struct int3400_thermal_priv *priv = dev_get_drvdata(dev);
138 int i, length = 0;
139
140 if (priv->current_uuid_index > 0)
141 return sprintf(buf, "%s\n",
142 int3400_thermal_uuids[priv->current_uuid_index]);
143
144 for (i = 0; i <= INT3400_THERMAL_CRITICAL; i++) {
145 if (priv->os_uuid_mask & BIT(i))
146 length += sysfs_emit_at(buf, length, "%s\n", int3400_thermal_uuids[i]);
147 }
148
149 if (length)
150 return length;
151
152 return sprintf(buf, "INVALID\n");
153 }
154
int3400_thermal_run_osc(acpi_handle handle,char * uuid_str,int * enable)155 static int int3400_thermal_run_osc(acpi_handle handle, char *uuid_str, int *enable)
156 {
157 u32 ret, buf[2];
158 acpi_status status;
159 int result = 0;
160 struct acpi_osc_context context = {
161 .uuid_str = uuid_str,
162 .rev = 1,
163 .cap.length = 8,
164 .cap.pointer = buf,
165 };
166
167 buf[OSC_QUERY_DWORD] = 0;
168 buf[OSC_SUPPORT_DWORD] = *enable;
169
170 status = acpi_run_osc(handle, &context);
171 if (ACPI_SUCCESS(status)) {
172 ret = *((u32 *)(context.ret.pointer + 4));
173 if (ret != *enable)
174 result = -EPERM;
175
176 kfree(context.ret.pointer);
177 } else
178 result = -EPERM;
179
180 return result;
181 }
182
set_os_uuid_mask(struct int3400_thermal_priv * priv,u32 mask)183 static int set_os_uuid_mask(struct int3400_thermal_priv *priv, u32 mask)
184 {
185 int cap = 0;
186
187 /*
188 * Capability bits:
189 * Bit 0: set to 1 to indicate DPTF is active
190 * Bi1 1: set to 1 to active cooling is supported by user space daemon
191 * Bit 2: set to 1 to passive cooling is supported by user space daemon
192 * Bit 3: set to 1 to critical trip is handled by user space daemon
193 */
194 if (mask)
195 cap = (priv->os_uuid_mask << 1) | 0x01;
196
197 return int3400_thermal_run_osc(priv->adev->handle,
198 "b23ba85d-c8b7-3542-88de-8de2ffcfd698",
199 &cap);
200 }
201
current_uuid_store(struct device * dev,struct device_attribute * attr,const char * buf,size_t count)202 static ssize_t current_uuid_store(struct device *dev,
203 struct device_attribute *attr,
204 const char *buf, size_t count)
205 {
206 struct int3400_thermal_priv *priv = dev_get_drvdata(dev);
207 int ret, i;
208
209 for (i = 0; i < INT3400_THERMAL_MAXIMUM_UUID; ++i) {
210 if (!strncmp(buf, int3400_thermal_uuids[i],
211 sizeof(int3400_thermal_uuids[i]) - 1)) {
212 /*
213 * If we have a list of supported UUIDs, make sure
214 * this one is supported.
215 */
216 if (priv->uuid_bitmap & BIT(i)) {
217 priv->current_uuid_index = i;
218 return count;
219 }
220
221 /*
222 * There is support of only 3 policies via the new
223 * _OSC to inform OS capability:
224 * INT3400_THERMAL_ACTIVE
225 * INT3400_THERMAL_PASSIVE_1
226 * INT3400_THERMAL_CRITICAL
227 */
228
229 if (i > INT3400_THERMAL_CRITICAL)
230 return -EINVAL;
231
232 priv->os_uuid_mask |= BIT(i);
233
234 break;
235 }
236 }
237
238 if (priv->os_uuid_mask) {
239 ret = set_os_uuid_mask(priv, priv->os_uuid_mask);
240 if (ret)
241 return ret;
242 }
243
244 return count;
245 }
246
247 static DEVICE_ATTR_RW(current_uuid);
248 static DEVICE_ATTR_RO(available_uuids);
249 static struct attribute *uuid_attrs[] = {
250 &dev_attr_available_uuids.attr,
251 &dev_attr_current_uuid.attr,
252 NULL
253 };
254
255 static const struct attribute_group uuid_attribute_group = {
256 .attrs = uuid_attrs,
257 .name = "uuids"
258 };
259
int3400_thermal_get_uuids(struct int3400_thermal_priv * priv)260 static int int3400_thermal_get_uuids(struct int3400_thermal_priv *priv)
261 {
262 struct acpi_buffer buf = { ACPI_ALLOCATE_BUFFER, NULL};
263 union acpi_object *obja, *objb;
264 int i, j;
265 int result = 0;
266 acpi_status status;
267
268 status = acpi_evaluate_object(priv->adev->handle, "IDSP", NULL, &buf);
269 if (ACPI_FAILURE(status))
270 return -ENODEV;
271
272 obja = (union acpi_object *)buf.pointer;
273 if (obja->type != ACPI_TYPE_PACKAGE) {
274 result = -EINVAL;
275 goto end;
276 }
277
278 for (i = 0; i < obja->package.count; i++) {
279 objb = &obja->package.elements[i];
280 if (objb->type != ACPI_TYPE_BUFFER) {
281 result = -EINVAL;
282 goto end;
283 }
284
285 /* UUID must be 16 bytes */
286 if (objb->buffer.length != 16) {
287 result = -EINVAL;
288 goto end;
289 }
290
291 for (j = 0; j < INT3400_THERMAL_MAXIMUM_UUID; j++) {
292 guid_t guid;
293
294 guid_parse(int3400_thermal_uuids[j], &guid);
295 if (guid_equal((guid_t *)objb->buffer.pointer, &guid)) {
296 priv->uuid_bitmap |= (1 << j);
297 break;
298 }
299 }
300 }
301
302 end:
303 kfree(buf.pointer);
304 return result;
305 }
306
production_mode_show(struct device * dev,struct device_attribute * attr,char * buf)307 static ssize_t production_mode_show(struct device *dev, struct device_attribute *attr,
308 char *buf)
309 {
310 struct int3400_thermal_priv *priv = dev_get_drvdata(dev);
311
312 return sysfs_emit(buf, "%d\n", priv->production_mode);
313 }
314
315 static DEVICE_ATTR_RO(production_mode);
316
production_mode_init(struct int3400_thermal_priv * priv)317 static int production_mode_init(struct int3400_thermal_priv *priv)
318 {
319 unsigned long long mode;
320 acpi_status status;
321 int ret;
322
323 priv->production_mode = -1;
324
325 status = acpi_evaluate_integer(priv->adev->handle, "DCFG", NULL, &mode);
326 /* If the method is not present, this is not an error */
327 if (ACPI_FAILURE(status))
328 return 0;
329
330 ret = sysfs_create_file(&priv->pdev->dev.kobj, &dev_attr_production_mode.attr);
331 if (ret)
332 return ret;
333
334 priv->production_mode = mode;
335
336 return 0;
337 }
338
production_mode_exit(struct int3400_thermal_priv * priv)339 static void production_mode_exit(struct int3400_thermal_priv *priv)
340 {
341 if (priv->production_mode >= 0)
342 sysfs_remove_file(&priv->pdev->dev.kobj, &dev_attr_production_mode.attr);
343 }
344
odvp_show(struct device * dev,struct device_attribute * attr,char * buf)345 static ssize_t odvp_show(struct device *dev, struct device_attribute *attr,
346 char *buf)
347 {
348 struct odvp_attr *odvp_attr;
349
350 odvp_attr = container_of(attr, struct odvp_attr, attr);
351
352 return sprintf(buf, "%d\n", odvp_attr->priv->odvp[odvp_attr->odvp]);
353 }
354
cleanup_odvp(struct int3400_thermal_priv * priv)355 static void cleanup_odvp(struct int3400_thermal_priv *priv)
356 {
357 int i;
358
359 if (priv->odvp_attrs) {
360 for (i = 0; i < priv->odvp_count; i++) {
361 sysfs_remove_file(&priv->pdev->dev.kobj,
362 &priv->odvp_attrs[i].attr.attr);
363 kfree(priv->odvp_attrs[i].attr.attr.name);
364 }
365 kfree(priv->odvp_attrs);
366 }
367 kfree(priv->odvp);
368 priv->odvp_count = 0;
369 }
370
evaluate_odvp(struct int3400_thermal_priv * priv)371 static int evaluate_odvp(struct int3400_thermal_priv *priv)
372 {
373 struct acpi_buffer odvp = { ACPI_ALLOCATE_BUFFER, NULL };
374 union acpi_object *obj = NULL;
375 acpi_status status;
376 int i, ret;
377
378 status = acpi_evaluate_object(priv->adev->handle, "ODVP", NULL, &odvp);
379 if (ACPI_FAILURE(status)) {
380 ret = -EINVAL;
381 goto out_err;
382 }
383
384 obj = odvp.pointer;
385 if (obj->type != ACPI_TYPE_PACKAGE) {
386 ret = -EINVAL;
387 goto out_err;
388 }
389
390 if (priv->odvp == NULL) {
391 priv->odvp_count = obj->package.count;
392 priv->odvp = kmalloc_array(priv->odvp_count, sizeof(int),
393 GFP_KERNEL);
394 if (!priv->odvp) {
395 ret = -ENOMEM;
396 goto out_err;
397 }
398 }
399
400 if (priv->odvp_attrs == NULL) {
401 priv->odvp_attrs = kcalloc(priv->odvp_count,
402 sizeof(struct odvp_attr),
403 GFP_KERNEL);
404 if (!priv->odvp_attrs) {
405 ret = -ENOMEM;
406 goto out_err;
407 }
408 for (i = 0; i < priv->odvp_count; i++) {
409 struct odvp_attr *odvp = &priv->odvp_attrs[i];
410
411 sysfs_attr_init(&odvp->attr.attr);
412 odvp->priv = priv;
413 odvp->odvp = i;
414 odvp->attr.attr.name = kasprintf(GFP_KERNEL,
415 "odvp%d", i);
416
417 if (!odvp->attr.attr.name) {
418 ret = -ENOMEM;
419 goto out_err;
420 }
421 odvp->attr.attr.mode = 0444;
422 odvp->attr.show = odvp_show;
423 odvp->attr.store = NULL;
424 ret = sysfs_create_file(&priv->pdev->dev.kobj,
425 &odvp->attr.attr);
426 if (ret)
427 goto out_err;
428 }
429 }
430
431 for (i = 0; i < obj->package.count; i++) {
432 if (obj->package.elements[i].type == ACPI_TYPE_INTEGER)
433 priv->odvp[i] = obj->package.elements[i].integer.value;
434 }
435
436 kfree(obj);
437 return 0;
438
439 out_err:
440 cleanup_odvp(priv);
441 kfree(obj);
442 return ret;
443 }
444
int3400_notify(acpi_handle handle,u32 event,void * data)445 static void int3400_notify(acpi_handle handle,
446 u32 event,
447 void *data)
448 {
449 struct int3400_thermal_priv *priv = data;
450 struct device *dev;
451 char *thermal_prop[5];
452 int therm_event;
453
454 if (!priv)
455 return;
456
457 switch (event) {
458 case INT3400_THERMAL_TABLE_CHANGED:
459 therm_event = THERMAL_TABLE_CHANGED;
460 break;
461 case INT3400_KEEP_ALIVE:
462 therm_event = THERMAL_EVENT_KEEP_ALIVE;
463 break;
464 case INT3400_ODVP_CHANGED:
465 evaluate_odvp(priv);
466 therm_event = THERMAL_DEVICE_POWER_CAPABILITY_CHANGED;
467 break;
468 default:
469 /* Ignore unknown notification codes sent to INT3400 device */
470 return;
471 }
472
473 dev = thermal_zone_device(priv->thermal);
474
475 thermal_prop[0] = kasprintf(GFP_KERNEL, "NAME=%s", thermal_zone_device_type(priv->thermal));
476 thermal_prop[1] = kasprintf(GFP_KERNEL, "TEMP=%d", INT3400_FAKE_TEMP);
477 thermal_prop[2] = kasprintf(GFP_KERNEL, "TRIP=");
478 thermal_prop[3] = kasprintf(GFP_KERNEL, "EVENT=%d", therm_event);
479 thermal_prop[4] = NULL;
480 kobject_uevent_env(&dev->kobj, KOBJ_CHANGE, thermal_prop);
481 kfree(thermal_prop[0]);
482 kfree(thermal_prop[1]);
483 kfree(thermal_prop[2]);
484 kfree(thermal_prop[3]);
485 }
486
int3400_thermal_get_temp(struct thermal_zone_device * thermal,int * temp)487 static int int3400_thermal_get_temp(struct thermal_zone_device *thermal,
488 int *temp)
489 {
490 *temp = INT3400_FAKE_TEMP;
491 return 0;
492 }
493
int3400_thermal_change_mode(struct thermal_zone_device * thermal,enum thermal_device_mode mode)494 static int int3400_thermal_change_mode(struct thermal_zone_device *thermal,
495 enum thermal_device_mode mode)
496 {
497 struct int3400_thermal_priv *priv = thermal_zone_device_priv(thermal);
498 int result = 0;
499 int enabled;
500
501 if (!priv)
502 return -EINVAL;
503
504 enabled = mode == THERMAL_DEVICE_ENABLED;
505
506 if (priv->os_uuid_mask) {
507 if (!enabled) {
508 priv->os_uuid_mask = 0;
509 result = set_os_uuid_mask(priv, priv->os_uuid_mask);
510 }
511 goto eval_odvp;
512 }
513
514 if (priv->current_uuid_index < 0 ||
515 priv->current_uuid_index >= INT3400_THERMAL_MAXIMUM_UUID)
516 return -EINVAL;
517
518 result = int3400_thermal_run_osc(priv->adev->handle,
519 int3400_thermal_uuids[priv->current_uuid_index],
520 &enabled);
521 eval_odvp:
522 evaluate_odvp(priv);
523
524 return result;
525 }
526
527 static struct thermal_zone_device_ops int3400_thermal_ops = {
528 .get_temp = int3400_thermal_get_temp,
529 .change_mode = int3400_thermal_change_mode,
530 };
531
532 static struct thermal_zone_params int3400_thermal_params = {
533 .governor_name = "user_space",
534 .no_hwmon = true,
535 };
536
int3400_setup_gddv(struct int3400_thermal_priv * priv)537 static void int3400_setup_gddv(struct int3400_thermal_priv *priv)
538 {
539 struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
540 union acpi_object *obj;
541 acpi_status status;
542
543 status = acpi_evaluate_object(priv->adev->handle, "GDDV", NULL,
544 &buffer);
545 if (ACPI_FAILURE(status) || !buffer.length)
546 return;
547
548 obj = buffer.pointer;
549 if (obj->type != ACPI_TYPE_PACKAGE || obj->package.count != 1
550 || obj->package.elements[0].type != ACPI_TYPE_BUFFER)
551 goto out_free;
552
553 priv->data_vault = kmemdup(obj->package.elements[0].buffer.pointer,
554 obj->package.elements[0].buffer.length,
555 GFP_KERNEL);
556 if (ZERO_OR_NULL_PTR(priv->data_vault))
557 goto out_free;
558
559 bin_attr_data_vault.private = priv->data_vault;
560 bin_attr_data_vault.size = obj->package.elements[0].buffer.length;
561 out_free:
562 kfree(buffer.pointer);
563 }
564
int3400_thermal_probe(struct platform_device * pdev)565 static int int3400_thermal_probe(struct platform_device *pdev)
566 {
567 struct acpi_device *adev = ACPI_COMPANION(&pdev->dev);
568 struct int3400_thermal_priv *priv;
569 int result;
570
571 if (!adev)
572 return -ENODEV;
573
574 priv = kzalloc(sizeof(*priv), GFP_KERNEL);
575 if (!priv)
576 return -ENOMEM;
577
578 priv->pdev = pdev;
579 priv->adev = adev;
580
581 result = int3400_thermal_get_uuids(priv);
582
583 /* Missing IDSP isn't fatal */
584 if (result && result != -ENODEV)
585 goto free_priv;
586
587 priv->current_uuid_index = -1;
588
589 result = acpi_parse_art(priv->adev->handle, &priv->art_count,
590 &priv->arts, true);
591 if (result)
592 dev_dbg(&pdev->dev, "_ART table parsing error\n");
593
594 result = acpi_parse_trt(priv->adev->handle, &priv->trt_count,
595 &priv->trts, true);
596 if (result)
597 dev_dbg(&pdev->dev, "_TRT table parsing error\n");
598
599 platform_set_drvdata(pdev, priv);
600
601 int3400_setup_gddv(priv);
602
603 evaluate_odvp(priv);
604
605 priv->thermal = thermal_tripless_zone_device_register("INT3400 Thermal", priv,
606 &int3400_thermal_ops,
607 &int3400_thermal_params);
608 if (IS_ERR(priv->thermal)) {
609 result = PTR_ERR(priv->thermal);
610 goto free_art_trt;
611 }
612
613 priv->rel_misc_dev_res = acpi_thermal_rel_misc_device_add(
614 priv->adev->handle);
615
616 result = sysfs_create_group(&pdev->dev.kobj, &uuid_attribute_group);
617 if (result)
618 goto free_rel_misc;
619
620 if (acpi_has_method(priv->adev->handle, "IMOK")) {
621 result = sysfs_create_group(&pdev->dev.kobj, &imok_attribute_group);
622 if (result)
623 goto free_imok;
624 }
625
626 if (!ZERO_OR_NULL_PTR(priv->data_vault)) {
627 result = sysfs_create_group(&pdev->dev.kobj,
628 &data_attribute_group);
629 if (result)
630 goto free_uuid;
631 }
632
633 result = acpi_install_notify_handler(
634 priv->adev->handle, ACPI_DEVICE_NOTIFY, int3400_notify,
635 (void *)priv);
636 if (result)
637 goto free_sysfs;
638
639 result = production_mode_init(priv);
640 if (result)
641 goto free_notify;
642
643 return 0;
644
645 free_notify:
646 acpi_remove_notify_handler(priv->adev->handle, ACPI_DEVICE_NOTIFY,
647 int3400_notify);
648 free_sysfs:
649 cleanup_odvp(priv);
650 if (!ZERO_OR_NULL_PTR(priv->data_vault)) {
651 sysfs_remove_group(&pdev->dev.kobj, &data_attribute_group);
652 kfree(priv->data_vault);
653 }
654 free_uuid:
655 sysfs_remove_group(&pdev->dev.kobj, &uuid_attribute_group);
656 free_imok:
657 sysfs_remove_group(&pdev->dev.kobj, &imok_attribute_group);
658 free_rel_misc:
659 if (!priv->rel_misc_dev_res)
660 acpi_thermal_rel_misc_device_remove(priv->adev->handle);
661 thermal_zone_device_unregister(priv->thermal);
662 free_art_trt:
663 kfree(priv->trts);
664 kfree(priv->arts);
665 free_priv:
666 kfree(priv);
667 return result;
668 }
669
int3400_thermal_remove(struct platform_device * pdev)670 static void int3400_thermal_remove(struct platform_device *pdev)
671 {
672 struct int3400_thermal_priv *priv = platform_get_drvdata(pdev);
673
674 production_mode_exit(priv);
675
676 acpi_remove_notify_handler(
677 priv->adev->handle, ACPI_DEVICE_NOTIFY,
678 int3400_notify);
679
680 cleanup_odvp(priv);
681
682 if (!priv->rel_misc_dev_res)
683 acpi_thermal_rel_misc_device_remove(priv->adev->handle);
684
685 if (!ZERO_OR_NULL_PTR(priv->data_vault))
686 sysfs_remove_group(&pdev->dev.kobj, &data_attribute_group);
687 sysfs_remove_group(&pdev->dev.kobj, &uuid_attribute_group);
688 sysfs_remove_group(&pdev->dev.kobj, &imok_attribute_group);
689 thermal_zone_device_unregister(priv->thermal);
690 kfree(priv->data_vault);
691 kfree(priv->trts);
692 kfree(priv->arts);
693 kfree(priv);
694 }
695
696 static const struct acpi_device_id int3400_thermal_match[] = {
697 {"INT3400", 0},
698 {"INTC1040", 0},
699 {"INTC1041", 0},
700 {"INTC1042", 0},
701 {"INTC1068", 0},
702 {"INTC10A0", 0},
703 {}
704 };
705
706 MODULE_DEVICE_TABLE(acpi, int3400_thermal_match);
707
708 static struct platform_driver int3400_thermal_driver = {
709 .probe = int3400_thermal_probe,
710 .remove_new = int3400_thermal_remove,
711 .driver = {
712 .name = "int3400 thermal",
713 .acpi_match_table = ACPI_PTR(int3400_thermal_match),
714 },
715 };
716
717 module_platform_driver(int3400_thermal_driver);
718
719 MODULE_DESCRIPTION("INT3400 Thermal driver");
720 MODULE_AUTHOR("Zhang Rui <rui.zhang@intel.com>");
721 MODULE_LICENSE("GPL");
722