xref: /openbmc/linux/drivers/acpi/blacklist.c (revision 643d1f7f) 
1 /*
2  *  blacklist.c
3  *
4  *  Check to see if the given machine has a known bad ACPI BIOS
5  *  or if the BIOS is too old.
6  *  Check given machine against acpi_osi_dmi_table[].
7  *
8  *  Copyright (C) 2004 Len Brown <len.brown@intel.com>
9  *  Copyright (C) 2002 Andy Grover <andrew.grover@intel.com>
10  *
11  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
12  *
13  *  This program is free software; you can redistribute it and/or modify
14  *  it under the terms of the GNU General Public License as published by
15  *  the Free Software Foundation; either version 2 of the License, or (at
16  *  your option) any later version.
17  *
18  *  This program is distributed in the hope that it will be useful, but
19  *  WITHOUT ANY WARRANTY; without even the implied warranty of
20  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
21  *  General Public License for more details.
22  *
23  *  You should have received a copy of the GNU General Public License along
24  *  with this program; if not, write to the Free Software Foundation, Inc.,
25  *  59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
26  *
27  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
28  */
29 
30 #include <linux/kernel.h>
31 #include <linux/module.h>
32 #include <linux/init.h>
33 #include <linux/acpi.h>
34 #include <acpi/acpi_bus.h>
35 #include <linux/dmi.h>
36 
37 enum acpi_blacklist_predicates {
38 	all_versions,
39 	less_than_or_equal,
40 	equal,
41 	greater_than_or_equal,
42 };
43 
44 struct acpi_blacklist_item {
45 	char oem_id[7];
46 	char oem_table_id[9];
47 	u32 oem_revision;
48 	char *table;
49 	enum acpi_blacklist_predicates oem_revision_predicate;
50 	char *reason;
51 	u32 is_critical_error;
52 };
53 
54 static struct dmi_system_id acpi_osi_dmi_table[] __initdata;
55 
56 /*
57  * POLICY: If *anything* doesn't work, put it on the blacklist.
58  *	   If they are critical errors, mark it critical, and abort driver load.
59  */
60 static struct acpi_blacklist_item acpi_blacklist[] __initdata = {
61 	/* Compaq Presario 1700 */
62 	{"PTLTD ", "  DSDT  ", 0x06040000, ACPI_SIG_DSDT, less_than_or_equal,
63 	 "Multiple problems", 1},
64 	/* Sony FX120, FX140, FX150? */
65 	{"SONY  ", "U0      ", 0x20010313, ACPI_SIG_DSDT, less_than_or_equal,
66 	 "ACPI driver problem", 1},
67 	/* Compaq Presario 800, Insyde BIOS */
68 	{"INT440", "SYSFexxx", 0x00001001, ACPI_SIG_DSDT, less_than_or_equal,
69 	 "Does not use _REG to protect EC OpRegions", 1},
70 	/* IBM 600E - _ADR should return 7, but it returns 1 */
71 	{"IBM   ", "TP600E  ", 0x00000105, ACPI_SIG_DSDT, less_than_or_equal,
72 	 "Incorrect _ADR", 1},
73 	{"ASUS\0\0", "P2B-S   ", 0, ACPI_SIG_DSDT, all_versions,
74 	 "Bogus PCI routing", 1},
75 
76 	{""}
77 };
78 
79 #if	CONFIG_ACPI_BLACKLIST_YEAR
80 
81 static int __init blacklist_by_year(void)
82 {
83 	int year = dmi_get_year(DMI_BIOS_DATE);
84 	/* Doesn't exist? Likely an old system */
85 	if (year == -1) {
86 		printk(KERN_ERR PREFIX "no DMI BIOS year, "
87 			"acpi=force is required to enable ACPI\n" );
88 		return 1;
89 	}
90 	/* 0? Likely a buggy new BIOS */
91 	if (year == 0) {
92 		printk(KERN_ERR PREFIX "DMI BIOS year==0, "
93 			"assuming ACPI-capable machine\n" );
94 		return 0;
95 	}
96 	if (year < CONFIG_ACPI_BLACKLIST_YEAR) {
97 		printk(KERN_ERR PREFIX "BIOS age (%d) fails cutoff (%d), "
98 		       "acpi=force is required to enable ACPI\n",
99 		       year, CONFIG_ACPI_BLACKLIST_YEAR);
100 		return 1;
101 	}
102 	return 0;
103 }
104 #else
105 static inline int blacklist_by_year(void)
106 {
107 	return 0;
108 }
109 #endif
110 
111 int __init acpi_blacklisted(void)
112 {
113 	int i = 0;
114 	int blacklisted = 0;
115 	struct acpi_table_header table_header;
116 
117 	while (acpi_blacklist[i].oem_id[0] != '\0') {
118 		if (acpi_get_table_header(acpi_blacklist[i].table, 0, &table_header)) {
119 			i++;
120 			continue;
121 		}
122 
123 		if (strncmp(acpi_blacklist[i].oem_id, table_header.oem_id, 6)) {
124 			i++;
125 			continue;
126 		}
127 
128 		if (strncmp
129 		    (acpi_blacklist[i].oem_table_id, table_header.oem_table_id,
130 		     8)) {
131 			i++;
132 			continue;
133 		}
134 
135 		if ((acpi_blacklist[i].oem_revision_predicate == all_versions)
136 		    || (acpi_blacklist[i].oem_revision_predicate ==
137 			less_than_or_equal
138 			&& table_header.oem_revision <=
139 			acpi_blacklist[i].oem_revision)
140 		    || (acpi_blacklist[i].oem_revision_predicate ==
141 			greater_than_or_equal
142 			&& table_header.oem_revision >=
143 			acpi_blacklist[i].oem_revision)
144 		    || (acpi_blacklist[i].oem_revision_predicate == equal
145 			&& table_header.oem_revision ==
146 			acpi_blacklist[i].oem_revision)) {
147 
148 			printk(KERN_ERR PREFIX
149 			       "Vendor \"%6.6s\" System \"%8.8s\" "
150 			       "Revision 0x%x has a known ACPI BIOS problem.\n",
151 			       acpi_blacklist[i].oem_id,
152 			       acpi_blacklist[i].oem_table_id,
153 			       acpi_blacklist[i].oem_revision);
154 
155 			printk(KERN_ERR PREFIX
156 			       "Reason: %s. This is a %s error\n",
157 			       acpi_blacklist[i].reason,
158 			       (acpi_blacklist[i].
159 				is_critical_error ? "non-recoverable" :
160 				"recoverable"));
161 
162 			blacklisted = acpi_blacklist[i].is_critical_error;
163 			break;
164 		} else {
165 			i++;
166 		}
167 	}
168 
169 	blacklisted += blacklist_by_year();
170 
171 	dmi_check_system(acpi_osi_dmi_table);
172 
173 	return blacklisted;
174 }
175 #ifdef CONFIG_DMI
176 static int __init dmi_enable_osi_linux(const struct dmi_system_id *d)
177 {
178 	acpi_dmi_osi_linux(1, d);	/* enable */
179 	return 0;
180 }
181 static int __init dmi_disable_osi_linux(const struct dmi_system_id *d)
182 {
183 	acpi_dmi_osi_linux(0, d);	/* disable */
184 	return 0;
185 }
186 static int __init dmi_unknown_osi_linux(const struct dmi_system_id *d)
187 {
188 	acpi_dmi_osi_linux(-1, d);	/* unknown */
189 	return 0;
190 }
191 
192 /*
193  * Most BIOS that invoke OSI(Linux) do nothing with it.
194  * But some cause Linux to break.
195  * Only a couple use it to make Linux run better.
196  *
197  * Thus, Linux should continue to disable OSI(Linux) by default,
198  * should continue to discourage BIOS writers from using it, and
199  * should whitelist the few existing systems that require it.
200  *
201  * If it appears clear a vendor isn't using OSI(Linux)
202  * for anything constructive, blacklist them by name to disable
203  * unnecessary dmesg warnings on all of their products.
204  */
205 
206 static struct dmi_system_id acpi_osi_dmi_table[] __initdata = {
207 	/*
208 	 * Disable OSI(Linux) warnings on all "Acer, inc."
209 	 *
210 	 * _OSI(Linux) disables the latest Windows BIOS code:
211 	 * DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5050"),
212 	 * DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5580"),
213 	 * DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 3010"),
214 	 * _OSI(Linux) effect unknown:
215 	 * DMI_MATCH(DMI_PRODUCT_NAME, "Ferrari 5000"),
216 	 */
217 	{
218 	.callback = dmi_disable_osi_linux,
219 	.ident = "Acer, inc.",
220 	.matches = {
221 		     DMI_MATCH(DMI_SYS_VENDOR, "Acer, inc."),
222 		},
223 	},
224 	/*
225 	 * Disable OSI(Linux) warnings on all "Acer"
226 	 *
227 	 * _OSI(Linux) effect unknown:
228 	 * DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5100"),
229 	 * DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5610"),
230 	 * DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 7720Z"),
231 	 * DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 5520"),
232 	 * DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 6460"),
233 	 * DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 7510"),
234 	 * DMI_MATCH(DMI_PRODUCT_NAME, "Extensa 5220"),
235 	 */
236 	{
237 	.callback = dmi_unknown_osi_linux,
238 	.ident = "Acer",
239 	.matches = {
240 		     DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
241 		},
242 	},
243 	/*
244 	 * Disable OSI(Linux) warnings on all "Apple Computer, Inc."
245 	 *
246 	 * _OSI(Linux) confirmed to be a NOP:
247 	 * DMI_MATCH(DMI_PRODUCT_NAME, "MacBook1,1"),
248 	 * DMI_MATCH(DMI_PRODUCT_NAME, "MacBook2,1"),
249 	 * DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro2,2"),
250 	 * _OSI(Linux) effect unknown:
251 	 * DMI_MATCH(DMI_PRODUCT_NAME, "MacPro2,1"),
252 	 * DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro1,1"),
253 	 * DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro3,1"),
254 	 */
255 	{
256 	.callback = dmi_disable_osi_linux,
257 	.ident = "Apple",
258 	.matches = {
259 		     DMI_MATCH(DMI_SYS_VENDOR, "Apple Computer, Inc."),
260 		},
261 	},
262 	/*
263 	 * Disable OSI(Linux) warnings on all "BenQ"
264 	 *
265 	 * _OSI(Linux) confirmed to be a NOP:
266 	 * DMI_MATCH(DMI_PRODUCT_NAME, "Joybook S31"),
267 	 */
268 	{
269 	.callback = dmi_disable_osi_linux,
270 	.ident = "BenQ",
271 	.matches = {
272 		     DMI_MATCH(DMI_SYS_VENDOR, "BenQ"),
273 		},
274 	},
275 	/*
276 	 * Disable OSI(Linux) warnings on all "Clevo Co."
277 	 *
278 	 * _OSI(Linux) confirmed to be a NOP:
279 	 * DMI_MATCH(DMI_PRODUCT_NAME, "M570RU"),
280 	 */
281 	{
282 	.callback = dmi_disable_osi_linux,
283 	.ident = "Clevo",
284 	.matches = {
285 		     DMI_MATCH(DMI_SYS_VENDOR, "Clevo Co."),
286 		},
287 	},
288 	/*
289 	 * Disable OSI(Linux) warnings on all "COMPAL"
290 	 *
291 	 * _OSI(Linux) confirmed to be a NOP:
292 	 * DMI_MATCH(DMI_BOARD_NAME, "HEL8X"),
293 	 * _OSI(Linux) unknown effect:
294 	 * DMI_MATCH(DMI_BOARD_NAME, "IFL91"),
295 	 */
296 	{
297 	.callback = dmi_unknown_osi_linux,
298 	.ident = "Compal",
299 	.matches = {
300 		     DMI_MATCH(DMI_BIOS_VENDOR, "COMPAL"),
301 		},
302 	},
303 	{ /* OSI(Linux) touches USB, breaks suspend to disk */
304 	.callback = dmi_disable_osi_linux,
305 	.ident = "Dell Dimension 5150",
306 	.matches = {
307 		     DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
308 		     DMI_MATCH(DMI_PRODUCT_NAME, "Dell DM051"),
309 		},
310 	},
311 	{ /* OSI(Linux) is a NOP */
312 	.callback = dmi_disable_osi_linux,
313 	.ident = "Dell",
314 	.matches = {
315 		     DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
316 		     DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 1501"),
317 		},
318 	},
319 	{ /* OSI(Linux) effect unknown */
320 	.callback = dmi_unknown_osi_linux,
321 	.ident = "Dell",
322 	.matches = {
323 		     DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
324 		     DMI_MATCH(DMI_PRODUCT_NAME, "Latitude D830"),
325 		},
326 	},
327 	{ /* OSI(Linux) effect unknown */
328 	.callback = dmi_unknown_osi_linux,
329 	.ident = "Dell",
330 	.matches = {
331 		     DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
332 		     DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex GX620"),
333 		},
334 	},
335 	{ /* OSI(Linux) effect unknown */
336 	.callback = dmi_unknown_osi_linux,
337 	.ident = "Dell",
338 	.matches = {
339 		     DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
340 		     DMI_MATCH(DMI_PRODUCT_NAME, "PowerEdge 1900"),
341 		},
342 	},
343 	{ /* OSI(Linux) touches USB */
344 	.callback = dmi_disable_osi_linux,
345 	.ident = "Dell",
346 	.matches = {
347 		     DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
348 		     DMI_MATCH(DMI_PRODUCT_NAME, "Precision WorkStation 390"),
349 		},
350 	},
351 	{ /* OSI(Linux) is a NOP */
352 	.callback = dmi_disable_osi_linux,
353 	.ident = "Dell Vostro 1000",
354 	.matches = {
355 		     DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
356 		     DMI_MATCH(DMI_PRODUCT_NAME, "Vostro   1000"),
357 		},
358 	},
359 	{ /* OSI(Linux) effect unknown */
360 	.callback = dmi_unknown_osi_linux,
361 	.ident = "Dell",
362 	.matches = {
363 		     DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
364 		     DMI_MATCH(DMI_PRODUCT_NAME, "PowerEdge SC440"),
365 		},
366 	},
367 	{ /* OSI(Linux) effect unknown */
368 	.callback = dmi_unknown_osi_linux,
369 	.ident = "Dialogue Flybook V5",
370 	.matches = {
371 		     DMI_MATCH(DMI_SYS_VENDOR, "Dialogue Technology Corporation"),
372 		     DMI_MATCH(DMI_PRODUCT_NAME, "Flybook V5"),
373 		},
374 	},
375 	/*
376 	 * Disable OSI(Linux) warnings on all "FUJITSU SIEMENS"
377 	 *
378 	 * _OSI(Linux) disables latest Windows BIOS code:
379 	 * DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pa 2510"),
380 	 * _OSI(Linux) confirmed to be a NOP:
381 	 * DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pi 1536"),
382 	 * DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pi 1556"),
383 	 * DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Xi 1546"),
384 	 * _OSI(Linux) unknown effect:
385 	 * DMI_MATCH(DMI_PRODUCT_NAME, "Amilo M1425"),
386 	 * DMI_MATCH(DMI_PRODUCT_NAME, "Amilo Si 1520"),
387 	 * DMI_MATCH(DMI_PRODUCT_NAME, "ESPRIMO Mobile V5505"),
388 	 */
389 	{
390 	.callback = dmi_disable_osi_linux,
391 	.ident = "Fujitsu Siemens",
392 	.matches = {
393 		     DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
394 		},
395 	},
396 	/*
397 	 * Disable OSI(Linux) warnings on all "Hewlett-Packard"
398 	 *
399 	 * _OSI(Linux) confirmed to be a NOP:
400 	 * .ident = "HP Pavilion tx 1000"
401 	 * DMI_MATCH(DMI_BOARD_NAME, "30BF"),
402 	 * .ident = "HP Pavilion dv2000"
403 	 * DMI_MATCH(DMI_BOARD_NAME, "30B5"),
404 	 * .ident = "HP Pavilion dv5000",
405 	 * DMI_MATCH(DMI_BOARD_NAME, "30A7"),
406 	 * .ident = "HP Pavilion dv6300 30BC",
407 	 * DMI_MATCH(DMI_BOARD_NAME, "30BC"),
408 	 * .ident = "HP Pavilion dv6000",
409 	 * DMI_MATCH(DMI_BOARD_NAME, "30B7"),
410 	 * DMI_MATCH(DMI_BOARD_NAME, "30B8"),
411 	 * .ident = "HP Pavilion dv9000",
412 	 * DMI_MATCH(DMI_BOARD_NAME, "30B9"),
413 	 * .ident = "HP Pavilion dv9500",
414 	 * DMI_MATCH(DMI_BOARD_NAME, "30CB"),
415 	 * .ident = "HP/Compaq Presario C500",
416 	 * DMI_MATCH(DMI_BOARD_NAME, "30C6"),
417 	 * .ident = "HP/Compaq Presario F500",
418 	 * DMI_MATCH(DMI_BOARD_NAME, "30D3"),
419 	 * _OSI(Linux) unknown effect:
420 	 * .ident = "HP Pavilion dv6500",
421 	 * DMI_MATCH(DMI_BOARD_NAME, "30D0"),
422 	 */
423 	{
424 	.callback = dmi_disable_osi_linux,
425 	.ident = "Hewlett-Packard",
426 	.matches = {
427 		     DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
428 		},
429 	},
430 	/*
431 	 * Lenovo has a mix of systems OSI(Linux) situations
432 	 * and thus we can not wildcard the vendor.
433 	 *
434 	 * _OSI(Linux) helps sound
435 	 * DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad R61"),
436 	 * DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T61"),
437 	 * _OSI(Linux) is a NOP:
438 	 * DMI_MATCH(DMI_PRODUCT_VERSION, "3000 N100"),
439 	 */
440 	{
441 	.callback = dmi_enable_osi_linux,
442 	.ident = "Lenovo ThinkPad R61",
443 	.matches = {
444 		     DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
445 		     DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad R61"),
446 		},
447 	},
448 	{
449 	.callback = dmi_enable_osi_linux,
450 	.ident = "Lenovo ThinkPad T61",
451 	.matches = {
452 		     DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
453 		     DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T61"),
454 		},
455 	},
456 	{
457 	.callback = dmi_unknown_osi_linux,
458 	.ident = "Lenovo 3000 V100",
459 	.matches = {
460 		     DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
461 		     DMI_MATCH(DMI_PRODUCT_VERSION, "LENOVO3000 V100"),
462 		},
463 	},
464 	{
465 	.callback = dmi_disable_osi_linux,
466 	.ident = "Lenovo 3000 N100",
467 	.matches = {
468 		     DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
469 		     DMI_MATCH(DMI_PRODUCT_VERSION, "3000 N100"),
470 		},
471 	},
472 	/*
473 	 * Disable OSI(Linux) warnings on all "LG Electronics"
474 	 *
475 	 * _OSI(Linux) confirmed to be a NOP:
476 	 * DMI_MATCH(DMI_PRODUCT_NAME, "P1-J150B"),
477 	 */
478 	{
479 	.callback = dmi_disable_osi_linux,
480 	.ident = "LG",
481 	.matches = {
482 		     DMI_MATCH(DMI_SYS_VENDOR, "LG Electronics"),
483 		},
484 	},
485 	/* NEC - OSI(Linux) effect unknown */
486 	{
487 	.callback = dmi_unknown_osi_linux,
488 	.ident = "NEC VERSA M360",
489 	.matches = {
490 		     DMI_MATCH(DMI_SYS_VENDOR, "NEC Computers SAS"),
491 		     DMI_MATCH(DMI_PRODUCT_NAME, "NEC VERSA M360"),
492 		},
493 	},
494 	/*
495 	 * Disable OSI(Linux) warnings on all "Samsung Electronics"
496 	 *
497 	 * OSI(Linux) disables PNP0C32 and other BIOS code for Windows:
498 	 * DMI_MATCH(DMI_PRODUCT_NAME, "R40P/R41P"),
499 	 * DMI_MATCH(DMI_PRODUCT_NAME, "R59P/R60P/R61P"),
500 	 */
501 	{
502 	.callback = dmi_disable_osi_linux,
503 	.ident = "Samsung",
504 	.matches = {
505 		     DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
506 		},
507 	},
508 	/*
509 	 * Disable OSI(Linux) warnings on all "Sony Corporation"
510 	 *
511 	 * _OSI(Linux) is a NOP:
512 	 * DMI_MATCH(DMI_PRODUCT_NAME, "VGN-SZ650N"),
513 	 * DMI_MATCH(DMI_PRODUCT_NAME, "VGN-SZ38GP_C"),
514 	 * DMI_MATCH(DMI_PRODUCT_NAME, "VGN-TZ21MN_N"),
515 	 * _OSI(Linux) unknown effect:
516 	 * DMI_MATCH(DMI_PRODUCT_NAME, "VGN-FZ11M"),
517 	 */
518 	{
519 	.callback = dmi_unknown_osi_linux,
520 	.ident = "Sony",
521 	.matches = {
522 		     DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
523 		},
524 	},
525 	/*
526 	 * Disable OSI(Linux) warnings on all "TOSHIBA"
527 	 *
528 	 * _OSI(Linux) breaks sound (bugzilla 7787):
529 	 * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite P100"),
530 	 * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite P105"),
531 	 * _OSI(Linux) is a NOP:
532 	 * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite A100"),
533 	 * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite A210"),
534 	 * _OSI(Linux) unknown effect:
535 	 * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite A135"),
536 	 * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite A200"),
537 	 * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite P205"),
538 	 * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite U305"),
539 	 */
540 	{
541 	.callback = dmi_disable_osi_linux,
542 	.ident = "Toshiba",
543 	.matches = {
544 		     DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
545 		},
546 	},
547 	{}
548 };
549 
550 #endif /* CONFIG_DMI */
551