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 ssize_t data_vault_read(struct file *file, struct kobject *kobj, |
77 | struct bin_attribute *attr, char *buf, loff_t off, size_t count) |
78 | { |
79 | memcpy(buf, attr->private + off, count); |
80 | return count; |
81 | } |
82 | |
83 | static BIN_ATTR_RO(data_vault, 0); |
84 | |
85 | static struct bin_attribute *data_attributes[] = { |
86 | &bin_attr_data_vault, |
87 | NULL, |
88 | }; |
89 | |
90 | static ssize_t imok_store(struct device *dev, struct device_attribute *attr, |
91 | const char *buf, size_t count) |
92 | { |
93 | struct int3400_thermal_priv *priv = dev_get_drvdata(dev); |
94 | acpi_status status; |
95 | int input, ret; |
96 | |
97 | ret = kstrtouint(s: buf, base: 10, res: &input); |
98 | if (ret) |
99 | return ret; |
100 | status = acpi_execute_simple_method(handle: priv->adev->handle, method: "IMOK" , arg: input); |
101 | if (ACPI_FAILURE(status)) |
102 | return -EIO; |
103 | |
104 | return count; |
105 | } |
106 | |
107 | static DEVICE_ATTR_WO(imok); |
108 | |
109 | static struct attribute *imok_attr[] = { |
110 | &dev_attr_imok.attr, |
111 | NULL |
112 | }; |
113 | |
114 | static const struct attribute_group imok_attribute_group = { |
115 | .attrs = imok_attr, |
116 | }; |
117 | |
118 | static const struct attribute_group data_attribute_group = { |
119 | .bin_attrs = data_attributes, |
120 | }; |
121 | |
122 | static ssize_t available_uuids_show(struct device *dev, |
123 | struct device_attribute *attr, |
124 | char *buf) |
125 | { |
126 | struct int3400_thermal_priv *priv = dev_get_drvdata(dev); |
127 | int i; |
128 | int length = 0; |
129 | |
130 | if (!priv->uuid_bitmap) |
131 | return sprintf(buf, fmt: "UNKNOWN\n" ); |
132 | |
133 | for (i = 0; i < INT3400_THERMAL_MAXIMUM_UUID; i++) { |
134 | if (priv->uuid_bitmap & (1 << i)) |
135 | length += sysfs_emit_at(buf, at: length, fmt: "%s\n" , int3400_thermal_uuids[i]); |
136 | } |
137 | |
138 | return length; |
139 | } |
140 | |
141 | static ssize_t current_uuid_show(struct device *dev, |
142 | struct device_attribute *devattr, char *buf) |
143 | { |
144 | struct int3400_thermal_priv *priv = dev_get_drvdata(dev); |
145 | int i, length = 0; |
146 | |
147 | if (priv->current_uuid_index > 0) |
148 | return sprintf(buf, fmt: "%s\n" , |
149 | int3400_thermal_uuids[priv->current_uuid_index]); |
150 | |
151 | for (i = 0; i <= INT3400_THERMAL_CRITICAL; i++) { |
152 | if (priv->os_uuid_mask & BIT(i)) |
153 | length += sysfs_emit_at(buf, at: length, fmt: "%s\n" , int3400_thermal_uuids[i]); |
154 | } |
155 | |
156 | if (length) |
157 | return length; |
158 | |
159 | return sprintf(buf, fmt: "INVALID\n" ); |
160 | } |
161 | |
162 | static int int3400_thermal_run_osc(acpi_handle handle, char *uuid_str, int *enable) |
163 | { |
164 | u32 ret, buf[2]; |
165 | acpi_status status; |
166 | int result = 0; |
167 | struct acpi_osc_context context = { |
168 | .uuid_str = uuid_str, |
169 | .rev = 1, |
170 | .cap.length = 8, |
171 | .cap.pointer = buf, |
172 | }; |
173 | |
174 | buf[OSC_QUERY_DWORD] = 0; |
175 | buf[OSC_SUPPORT_DWORD] = *enable; |
176 | |
177 | status = acpi_run_osc(handle, context: &context); |
178 | if (ACPI_SUCCESS(status)) { |
179 | ret = *((u32 *)(context.ret.pointer + 4)); |
180 | if (ret != *enable) |
181 | result = -EPERM; |
182 | |
183 | kfree(objp: context.ret.pointer); |
184 | } else |
185 | result = -EPERM; |
186 | |
187 | return result; |
188 | } |
189 | |
190 | static int set_os_uuid_mask(struct int3400_thermal_priv *priv, u32 mask) |
191 | { |
192 | int cap = 0; |
193 | |
194 | /* |
195 | * Capability bits: |
196 | * Bit 0: set to 1 to indicate DPTF is active |
197 | * Bi1 1: set to 1 to active cooling is supported by user space daemon |
198 | * Bit 2: set to 1 to passive cooling is supported by user space daemon |
199 | * Bit 3: set to 1 to critical trip is handled by user space daemon |
200 | */ |
201 | if (mask) |
202 | cap = (priv->os_uuid_mask << 1) | 0x01; |
203 | |
204 | return int3400_thermal_run_osc(handle: priv->adev->handle, |
205 | uuid_str: "b23ba85d-c8b7-3542-88de-8de2ffcfd698" , |
206 | enable: &cap); |
207 | } |
208 | |
209 | static ssize_t current_uuid_store(struct device *dev, |
210 | struct device_attribute *attr, |
211 | const char *buf, size_t count) |
212 | { |
213 | struct int3400_thermal_priv *priv = dev_get_drvdata(dev); |
214 | int ret, i; |
215 | |
216 | for (i = 0; i < INT3400_THERMAL_MAXIMUM_UUID; ++i) { |
217 | if (!strncmp(buf, int3400_thermal_uuids[i], |
218 | sizeof(int3400_thermal_uuids[i]) - 1)) { |
219 | /* |
220 | * If we have a list of supported UUIDs, make sure |
221 | * this one is supported. |
222 | */ |
223 | if (priv->uuid_bitmap & BIT(i)) { |
224 | priv->current_uuid_index = i; |
225 | return count; |
226 | } |
227 | |
228 | /* |
229 | * There is support of only 3 policies via the new |
230 | * _OSC to inform OS capability: |
231 | * INT3400_THERMAL_ACTIVE |
232 | * INT3400_THERMAL_PASSIVE_1 |
233 | * INT3400_THERMAL_CRITICAL |
234 | */ |
235 | |
236 | if (i > INT3400_THERMAL_CRITICAL) |
237 | return -EINVAL; |
238 | |
239 | priv->os_uuid_mask |= BIT(i); |
240 | |
241 | break; |
242 | } |
243 | } |
244 | |
245 | if (priv->os_uuid_mask) { |
246 | ret = set_os_uuid_mask(priv, mask: priv->os_uuid_mask); |
247 | if (ret) |
248 | return ret; |
249 | } |
250 | |
251 | return count; |
252 | } |
253 | |
254 | static DEVICE_ATTR_RW(current_uuid); |
255 | static DEVICE_ATTR_RO(available_uuids); |
256 | static struct attribute *uuid_attrs[] = { |
257 | &dev_attr_available_uuids.attr, |
258 | &dev_attr_current_uuid.attr, |
259 | NULL |
260 | }; |
261 | |
262 | static const struct attribute_group uuid_attribute_group = { |
263 | .attrs = uuid_attrs, |
264 | .name = "uuids" |
265 | }; |
266 | |
267 | static int int3400_thermal_get_uuids(struct int3400_thermal_priv *priv) |
268 | { |
269 | struct acpi_buffer buf = { ACPI_ALLOCATE_BUFFER, NULL}; |
270 | union acpi_object *obja, *objb; |
271 | int i, j; |
272 | int result = 0; |
273 | acpi_status status; |
274 | |
275 | status = acpi_evaluate_object(object: priv->adev->handle, pathname: "IDSP" , NULL, return_object_buffer: &buf); |
276 | if (ACPI_FAILURE(status)) |
277 | return -ENODEV; |
278 | |
279 | obja = (union acpi_object *)buf.pointer; |
280 | if (obja->type != ACPI_TYPE_PACKAGE) { |
281 | result = -EINVAL; |
282 | goto end; |
283 | } |
284 | |
285 | for (i = 0; i < obja->package.count; i++) { |
286 | objb = &obja->package.elements[i]; |
287 | if (objb->type != ACPI_TYPE_BUFFER) { |
288 | result = -EINVAL; |
289 | goto end; |
290 | } |
291 | |
292 | /* UUID must be 16 bytes */ |
293 | if (objb->buffer.length != 16) { |
294 | result = -EINVAL; |
295 | goto end; |
296 | } |
297 | |
298 | for (j = 0; j < INT3400_THERMAL_MAXIMUM_UUID; j++) { |
299 | guid_t guid; |
300 | |
301 | guid_parse(uuid: int3400_thermal_uuids[j], u: &guid); |
302 | if (guid_equal(u1: (guid_t *)objb->buffer.pointer, u2: &guid)) { |
303 | priv->uuid_bitmap |= (1 << j); |
304 | break; |
305 | } |
306 | } |
307 | } |
308 | |
309 | end: |
310 | kfree(objp: buf.pointer); |
311 | return result; |
312 | } |
313 | |
314 | static ssize_t production_mode_show(struct device *dev, struct device_attribute *attr, |
315 | char *buf) |
316 | { |
317 | struct int3400_thermal_priv *priv = dev_get_drvdata(dev); |
318 | |
319 | return sysfs_emit(buf, fmt: "%d\n" , priv->production_mode); |
320 | } |
321 | |
322 | static DEVICE_ATTR_RO(production_mode); |
323 | |
324 | static int production_mode_init(struct int3400_thermal_priv *priv) |
325 | { |
326 | unsigned long long mode; |
327 | acpi_status status; |
328 | int ret; |
329 | |
330 | priv->production_mode = -1; |
331 | |
332 | status = acpi_evaluate_integer(handle: priv->adev->handle, pathname: "DCFG" , NULL, data: &mode); |
333 | /* If the method is not present, this is not an error */ |
334 | if (ACPI_FAILURE(status)) |
335 | return 0; |
336 | |
337 | ret = sysfs_create_file(kobj: &priv->pdev->dev.kobj, attr: &dev_attr_production_mode.attr); |
338 | if (ret) |
339 | return ret; |
340 | |
341 | priv->production_mode = mode; |
342 | |
343 | return 0; |
344 | } |
345 | |
346 | static void production_mode_exit(struct int3400_thermal_priv *priv) |
347 | { |
348 | if (priv->production_mode >= 0) |
349 | sysfs_remove_file(kobj: &priv->pdev->dev.kobj, attr: &dev_attr_production_mode.attr); |
350 | } |
351 | |
352 | static ssize_t odvp_show(struct device *dev, struct device_attribute *attr, |
353 | char *buf) |
354 | { |
355 | struct odvp_attr *odvp_attr; |
356 | |
357 | odvp_attr = container_of(attr, struct odvp_attr, attr); |
358 | |
359 | return sprintf(buf, fmt: "%d\n" , odvp_attr->priv->odvp[odvp_attr->odvp]); |
360 | } |
361 | |
362 | static void cleanup_odvp(struct int3400_thermal_priv *priv) |
363 | { |
364 | int i; |
365 | |
366 | if (priv->odvp_attrs) { |
367 | for (i = 0; i < priv->odvp_count; i++) { |
368 | sysfs_remove_file(kobj: &priv->pdev->dev.kobj, |
369 | attr: &priv->odvp_attrs[i].attr.attr); |
370 | kfree(objp: priv->odvp_attrs[i].attr.attr.name); |
371 | } |
372 | kfree(objp: priv->odvp_attrs); |
373 | } |
374 | kfree(objp: priv->odvp); |
375 | priv->odvp_count = 0; |
376 | } |
377 | |
378 | static int evaluate_odvp(struct int3400_thermal_priv *priv) |
379 | { |
380 | struct acpi_buffer odvp = { ACPI_ALLOCATE_BUFFER, NULL }; |
381 | union acpi_object *obj = NULL; |
382 | acpi_status status; |
383 | int i, ret; |
384 | |
385 | status = acpi_evaluate_object(object: priv->adev->handle, pathname: "ODVP" , NULL, return_object_buffer: &odvp); |
386 | if (ACPI_FAILURE(status)) { |
387 | ret = -EINVAL; |
388 | goto out_err; |
389 | } |
390 | |
391 | obj = odvp.pointer; |
392 | if (obj->type != ACPI_TYPE_PACKAGE) { |
393 | ret = -EINVAL; |
394 | goto out_err; |
395 | } |
396 | |
397 | if (priv->odvp == NULL) { |
398 | priv->odvp_count = obj->package.count; |
399 | priv->odvp = kmalloc_array(n: priv->odvp_count, size: sizeof(int), |
400 | GFP_KERNEL); |
401 | if (!priv->odvp) { |
402 | ret = -ENOMEM; |
403 | goto out_err; |
404 | } |
405 | } |
406 | |
407 | if (priv->odvp_attrs == NULL) { |
408 | priv->odvp_attrs = kcalloc(n: priv->odvp_count, |
409 | size: sizeof(struct odvp_attr), |
410 | GFP_KERNEL); |
411 | if (!priv->odvp_attrs) { |
412 | ret = -ENOMEM; |
413 | goto out_err; |
414 | } |
415 | for (i = 0; i < priv->odvp_count; i++) { |
416 | struct odvp_attr *odvp = &priv->odvp_attrs[i]; |
417 | |
418 | sysfs_attr_init(&odvp->attr.attr); |
419 | odvp->priv = priv; |
420 | odvp->odvp = i; |
421 | odvp->attr.attr.name = kasprintf(GFP_KERNEL, |
422 | fmt: "odvp%d" , i); |
423 | |
424 | if (!odvp->attr.attr.name) { |
425 | ret = -ENOMEM; |
426 | goto out_err; |
427 | } |
428 | odvp->attr.attr.mode = 0444; |
429 | odvp->attr.show = odvp_show; |
430 | odvp->attr.store = NULL; |
431 | ret = sysfs_create_file(kobj: &priv->pdev->dev.kobj, |
432 | attr: &odvp->attr.attr); |
433 | if (ret) |
434 | goto out_err; |
435 | } |
436 | } |
437 | |
438 | for (i = 0; i < obj->package.count; i++) { |
439 | if (obj->package.elements[i].type == ACPI_TYPE_INTEGER) |
440 | priv->odvp[i] = obj->package.elements[i].integer.value; |
441 | } |
442 | |
443 | kfree(objp: obj); |
444 | return 0; |
445 | |
446 | out_err: |
447 | cleanup_odvp(priv); |
448 | kfree(objp: obj); |
449 | return ret; |
450 | } |
451 | |
452 | static void int3400_notify(acpi_handle handle, |
453 | u32 event, |
454 | void *data) |
455 | { |
456 | struct int3400_thermal_priv *priv = data; |
457 | struct device *dev; |
458 | char *thermal_prop[5]; |
459 | int therm_event; |
460 | |
461 | if (!priv) |
462 | return; |
463 | |
464 | switch (event) { |
465 | case INT3400_THERMAL_TABLE_CHANGED: |
466 | therm_event = THERMAL_TABLE_CHANGED; |
467 | break; |
468 | case INT3400_KEEP_ALIVE: |
469 | therm_event = THERMAL_EVENT_KEEP_ALIVE; |
470 | break; |
471 | case INT3400_ODVP_CHANGED: |
472 | evaluate_odvp(priv); |
473 | therm_event = THERMAL_DEVICE_POWER_CAPABILITY_CHANGED; |
474 | break; |
475 | default: |
476 | /* Ignore unknown notification codes sent to INT3400 device */ |
477 | return; |
478 | } |
479 | |
480 | dev = thermal_zone_device(tzd: priv->thermal); |
481 | |
482 | thermal_prop[0] = kasprintf(GFP_KERNEL, fmt: "NAME=%s" , thermal_zone_device_type(tzd: priv->thermal)); |
483 | thermal_prop[1] = kasprintf(GFP_KERNEL, fmt: "TEMP=%d" , INT3400_FAKE_TEMP); |
484 | thermal_prop[2] = kasprintf(GFP_KERNEL, fmt: "TRIP=" ); |
485 | thermal_prop[3] = kasprintf(GFP_KERNEL, fmt: "EVENT=%d" , therm_event); |
486 | thermal_prop[4] = NULL; |
487 | kobject_uevent_env(kobj: &dev->kobj, action: KOBJ_CHANGE, envp: thermal_prop); |
488 | kfree(objp: thermal_prop[0]); |
489 | kfree(objp: thermal_prop[1]); |
490 | kfree(objp: thermal_prop[2]); |
491 | kfree(objp: thermal_prop[3]); |
492 | } |
493 | |
494 | static int int3400_thermal_get_temp(struct thermal_zone_device *thermal, |
495 | int *temp) |
496 | { |
497 | *temp = INT3400_FAKE_TEMP; |
498 | return 0; |
499 | } |
500 | |
501 | static int int3400_thermal_change_mode(struct thermal_zone_device *thermal, |
502 | enum thermal_device_mode mode) |
503 | { |
504 | struct int3400_thermal_priv *priv = thermal_zone_device_priv(tzd: thermal); |
505 | int result = 0; |
506 | int enabled; |
507 | |
508 | if (!priv) |
509 | return -EINVAL; |
510 | |
511 | enabled = mode == THERMAL_DEVICE_ENABLED; |
512 | |
513 | if (priv->os_uuid_mask) { |
514 | if (!enabled) { |
515 | priv->os_uuid_mask = 0; |
516 | result = set_os_uuid_mask(priv, mask: priv->os_uuid_mask); |
517 | } |
518 | goto eval_odvp; |
519 | } |
520 | |
521 | if (priv->current_uuid_index < 0 || |
522 | priv->current_uuid_index >= INT3400_THERMAL_MAXIMUM_UUID) |
523 | return -EINVAL; |
524 | |
525 | result = int3400_thermal_run_osc(handle: priv->adev->handle, |
526 | uuid_str: int3400_thermal_uuids[priv->current_uuid_index], |
527 | enable: &enabled); |
528 | eval_odvp: |
529 | evaluate_odvp(priv); |
530 | |
531 | return result; |
532 | } |
533 | |
534 | static struct thermal_zone_device_ops int3400_thermal_ops = { |
535 | .get_temp = int3400_thermal_get_temp, |
536 | .change_mode = int3400_thermal_change_mode, |
537 | }; |
538 | |
539 | static struct thermal_zone_params int3400_thermal_params = { |
540 | .governor_name = "user_space" , |
541 | .no_hwmon = true, |
542 | }; |
543 | |
544 | static void int3400_setup_gddv(struct int3400_thermal_priv *priv) |
545 | { |
546 | struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; |
547 | union acpi_object *obj; |
548 | acpi_status status; |
549 | |
550 | status = acpi_evaluate_object(object: priv->adev->handle, pathname: "GDDV" , NULL, |
551 | return_object_buffer: &buffer); |
552 | if (ACPI_FAILURE(status) || !buffer.length) |
553 | return; |
554 | |
555 | obj = buffer.pointer; |
556 | if (obj->type != ACPI_TYPE_PACKAGE || obj->package.count != 1 |
557 | || obj->package.elements[0].type != ACPI_TYPE_BUFFER) |
558 | goto out_free; |
559 | |
560 | priv->data_vault = kmemdup(p: obj->package.elements[0].buffer.pointer, |
561 | size: obj->package.elements[0].buffer.length, |
562 | GFP_KERNEL); |
563 | if (ZERO_OR_NULL_PTR(priv->data_vault)) |
564 | goto out_free; |
565 | |
566 | bin_attr_data_vault.private = priv->data_vault; |
567 | bin_attr_data_vault.size = obj->package.elements[0].buffer.length; |
568 | out_free: |
569 | kfree(objp: buffer.pointer); |
570 | } |
571 | |
572 | static int int3400_thermal_probe(struct platform_device *pdev) |
573 | { |
574 | struct acpi_device *adev = ACPI_COMPANION(&pdev->dev); |
575 | struct int3400_thermal_priv *priv; |
576 | int result; |
577 | |
578 | if (!adev) |
579 | return -ENODEV; |
580 | |
581 | priv = kzalloc(size: sizeof(struct int3400_thermal_priv), GFP_KERNEL); |
582 | if (!priv) |
583 | return -ENOMEM; |
584 | |
585 | priv->pdev = pdev; |
586 | priv->adev = adev; |
587 | |
588 | result = int3400_thermal_get_uuids(priv); |
589 | |
590 | /* Missing IDSP isn't fatal */ |
591 | if (result && result != -ENODEV) |
592 | goto free_priv; |
593 | |
594 | priv->current_uuid_index = -1; |
595 | |
596 | result = acpi_parse_art(handle: priv->adev->handle, art_count: &priv->art_count, |
597 | arts: &priv->arts, create_dev: true); |
598 | if (result) |
599 | dev_dbg(&pdev->dev, "_ART table parsing error\n" ); |
600 | |
601 | result = acpi_parse_trt(handle: priv->adev->handle, trt_count: &priv->trt_count, |
602 | trts: &priv->trts, create_dev: true); |
603 | if (result) |
604 | dev_dbg(&pdev->dev, "_TRT table parsing error\n" ); |
605 | |
606 | platform_set_drvdata(pdev, data: priv); |
607 | |
608 | int3400_setup_gddv(priv); |
609 | |
610 | evaluate_odvp(priv); |
611 | |
612 | priv->thermal = thermal_tripless_zone_device_register(type: "INT3400 Thermal" , devdata: priv, |
613 | ops: &int3400_thermal_ops, |
614 | tzp: &int3400_thermal_params); |
615 | if (IS_ERR(ptr: priv->thermal)) { |
616 | result = PTR_ERR(ptr: priv->thermal); |
617 | goto free_art_trt; |
618 | } |
619 | |
620 | priv->rel_misc_dev_res = acpi_thermal_rel_misc_device_add( |
621 | handle: priv->adev->handle); |
622 | |
623 | result = sysfs_create_group(kobj: &pdev->dev.kobj, grp: &uuid_attribute_group); |
624 | if (result) |
625 | goto free_rel_misc; |
626 | |
627 | if (acpi_has_method(handle: priv->adev->handle, name: "IMOK" )) { |
628 | result = sysfs_create_group(kobj: &pdev->dev.kobj, grp: &imok_attribute_group); |
629 | if (result) |
630 | goto free_imok; |
631 | } |
632 | |
633 | if (!ZERO_OR_NULL_PTR(priv->data_vault)) { |
634 | result = sysfs_create_group(kobj: &pdev->dev.kobj, |
635 | grp: &data_attribute_group); |
636 | if (result) |
637 | goto free_uuid; |
638 | } |
639 | |
640 | result = acpi_install_notify_handler( |
641 | device: priv->adev->handle, ACPI_DEVICE_NOTIFY, handler: int3400_notify, |
642 | context: (void *)priv); |
643 | if (result) |
644 | goto free_sysfs; |
645 | |
646 | result = production_mode_init(priv); |
647 | if (result) |
648 | goto free_notify; |
649 | |
650 | return 0; |
651 | |
652 | free_notify: |
653 | acpi_remove_notify_handler(device: priv->adev->handle, ACPI_DEVICE_NOTIFY, |
654 | handler: int3400_notify); |
655 | free_sysfs: |
656 | cleanup_odvp(priv); |
657 | if (!ZERO_OR_NULL_PTR(priv->data_vault)) { |
658 | sysfs_remove_group(kobj: &pdev->dev.kobj, grp: &data_attribute_group); |
659 | kfree(objp: priv->data_vault); |
660 | } |
661 | free_uuid: |
662 | sysfs_remove_group(kobj: &pdev->dev.kobj, grp: &uuid_attribute_group); |
663 | free_imok: |
664 | sysfs_remove_group(kobj: &pdev->dev.kobj, grp: &imok_attribute_group); |
665 | free_rel_misc: |
666 | if (!priv->rel_misc_dev_res) |
667 | acpi_thermal_rel_misc_device_remove(handle: priv->adev->handle); |
668 | thermal_zone_device_unregister(tz: priv->thermal); |
669 | free_art_trt: |
670 | kfree(objp: priv->trts); |
671 | kfree(objp: priv->arts); |
672 | free_priv: |
673 | kfree(objp: priv); |
674 | return result; |
675 | } |
676 | |
677 | static void int3400_thermal_remove(struct platform_device *pdev) |
678 | { |
679 | struct int3400_thermal_priv *priv = platform_get_drvdata(pdev); |
680 | |
681 | production_mode_exit(priv); |
682 | |
683 | acpi_remove_notify_handler( |
684 | device: priv->adev->handle, ACPI_DEVICE_NOTIFY, |
685 | handler: int3400_notify); |
686 | |
687 | cleanup_odvp(priv); |
688 | |
689 | if (!priv->rel_misc_dev_res) |
690 | acpi_thermal_rel_misc_device_remove(handle: priv->adev->handle); |
691 | |
692 | if (!ZERO_OR_NULL_PTR(priv->data_vault)) |
693 | sysfs_remove_group(kobj: &pdev->dev.kobj, grp: &data_attribute_group); |
694 | sysfs_remove_group(kobj: &pdev->dev.kobj, grp: &uuid_attribute_group); |
695 | sysfs_remove_group(kobj: &pdev->dev.kobj, grp: &imok_attribute_group); |
696 | thermal_zone_device_unregister(tz: priv->thermal); |
697 | kfree(objp: priv->data_vault); |
698 | kfree(objp: priv->trts); |
699 | kfree(objp: priv->arts); |
700 | kfree(objp: priv); |
701 | } |
702 | |
703 | static const struct acpi_device_id int3400_thermal_match[] = { |
704 | {"INT3400" , 0}, |
705 | {"INTC1040" , 0}, |
706 | {"INTC1041" , 0}, |
707 | {"INTC1042" , 0}, |
708 | {"INTC10A0" , 0}, |
709 | {} |
710 | }; |
711 | |
712 | MODULE_DEVICE_TABLE(acpi, int3400_thermal_match); |
713 | |
714 | static struct platform_driver int3400_thermal_driver = { |
715 | .probe = int3400_thermal_probe, |
716 | .remove_new = int3400_thermal_remove, |
717 | .driver = { |
718 | .name = "int3400 thermal" , |
719 | .acpi_match_table = ACPI_PTR(int3400_thermal_match), |
720 | }, |
721 | }; |
722 | |
723 | module_platform_driver(int3400_thermal_driver); |
724 | |
725 | MODULE_DESCRIPTION("INT3400 Thermal driver" ); |
726 | MODULE_AUTHOR("Zhang Rui <rui.zhang@intel.com>" ); |
727 | MODULE_LICENSE("GPL" ); |
728 | |