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1 /* SPDX-License-Identifier: MIT */
2 /*
3  * drm_panel_orientation_quirks.c -- Quirks for non-normal panel orientation
4  *
5  * Copyright (C) 2017 Hans de Goede <hdegoede@redhat.com>
6  *
7  * Note the quirks in this file are shared with fbdev/efifb and as such
8  * must not depend on other drm code.
9  */
10 
11 #include <linux/dmi.h>
12 #include <linux/module.h>
13 #include <drm/drm_connector.h>
14 #include <drm/drm_utils.h>
15 
16 #ifdef CONFIG_DMI
17 
18 /*
19  * Some x86 clamshell design devices use portrait tablet screens and a display
20  * engine which cannot rotate in hardware, so we need to rotate the fbcon to
21  * compensate. Unfortunately these (cheap) devices also typically have quite
22  * generic DMI data, so we match on a combination of DMI data, screen resolution
23  * and a list of known BIOS dates to avoid false positives.
24  */
25 
26 struct drm_dmi_panel_orientation_data {
27 	int width;
28 	int height;
29 	const char * const *bios_dates;
30 	int orientation;
31 };
32 
33 static const struct drm_dmi_panel_orientation_data gpd_micropc = {
34 	.width = 720,
35 	.height = 1280,
36 	.bios_dates = (const char * const []){ "04/26/2019",
37 		NULL },
38 	.orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
39 };
40 
41 static const struct drm_dmi_panel_orientation_data gpd_onemix2s = {
42 	.width = 1200,
43 	.height = 1920,
44 	.bios_dates = (const char * const []){ "05/21/2018", "10/26/2018",
45 		"03/04/2019", NULL },
46 	.orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
47 };
48 
49 static const struct drm_dmi_panel_orientation_data gpd_pocket = {
50 	.width = 1200,
51 	.height = 1920,
52 	.bios_dates = (const char * const []){ "05/26/2017", "06/28/2017",
53 		"07/05/2017", "08/07/2017", NULL },
54 	.orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
55 };
56 
57 static const struct drm_dmi_panel_orientation_data gpd_pocket2 = {
58 	.width = 1200,
59 	.height = 1920,
60 	.bios_dates = (const char * const []){ "06/28/2018", "08/28/2018",
61 		"12/07/2018", NULL },
62 	.orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
63 };
64 
65 static const struct drm_dmi_panel_orientation_data gpd_win = {
66 	.width = 720,
67 	.height = 1280,
68 	.bios_dates = (const char * const []){
69 		"10/25/2016", "11/18/2016", "12/23/2016", "12/26/2016",
70 		"02/21/2017", "03/20/2017", "05/25/2017", NULL },
71 	.orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
72 };
73 
74 static const struct drm_dmi_panel_orientation_data gpd_win2 = {
75 	.width = 720,
76 	.height = 1280,
77 	.bios_dates = (const char * const []){
78 		"12/07/2017", "05/24/2018", "06/29/2018", NULL },
79 	.orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
80 };
81 
82 static const struct drm_dmi_panel_orientation_data itworks_tw891 = {
83 	.width = 800,
84 	.height = 1280,
85 	.bios_dates = (const char * const []){ "10/16/2015", NULL },
86 	.orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
87 };
88 
89 static const struct drm_dmi_panel_orientation_data onegx1_pro = {
90 	.width = 1200,
91 	.height = 1920,
92 	.bios_dates = (const char * const []){ "12/17/2020", NULL },
93 	.orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
94 };
95 
96 static const struct drm_dmi_panel_orientation_data lcd720x1280_rightside_up = {
97 	.width = 720,
98 	.height = 1280,
99 	.orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
100 };
101 
102 static const struct drm_dmi_panel_orientation_data lcd800x1280_leftside_up = {
103 	.width = 800,
104 	.height = 1280,
105 	.orientation = DRM_MODE_PANEL_ORIENTATION_LEFT_UP,
106 };
107 
108 static const struct drm_dmi_panel_orientation_data lcd800x1280_rightside_up = {
109 	.width = 800,
110 	.height = 1280,
111 	.orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
112 };
113 
114 static const struct drm_dmi_panel_orientation_data lcd1080x1920_leftside_up = {
115 	.width = 1080,
116 	.height = 1920,
117 	.orientation = DRM_MODE_PANEL_ORIENTATION_LEFT_UP,
118 };
119 
120 static const struct drm_dmi_panel_orientation_data lcd1200x1920_rightside_up = {
121 	.width = 1200,
122 	.height = 1920,
123 	.orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
124 };
125 
126 static const struct drm_dmi_panel_orientation_data lcd1280x1920_rightside_up = {
127 	.width = 1280,
128 	.height = 1920,
129 	.orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
130 };
131 
132 static const struct drm_dmi_panel_orientation_data lcd1600x2560_leftside_up = {
133 	.width = 1600,
134 	.height = 2560,
135 	.orientation = DRM_MODE_PANEL_ORIENTATION_LEFT_UP,
136 };
137 
138 static const struct drm_dmi_panel_orientation_data lcd1600x2560_rightside_up = {
139 	.width = 1600,
140 	.height = 2560,
141 	.orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
142 };
143 
144 static const struct dmi_system_id orientation_data[] = {
145 	{	/* Acer One 10 (S1003) */
146 		.matches = {
147 		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Acer"),
148 		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "One S1003"),
149 		},
150 		.driver_data = (void *)&lcd800x1280_rightside_up,
151 	}, {	/* Acer Switch V 10 (SW5-017) */
152 		.matches = {
153 		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Acer"),
154 		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "SW5-017"),
155 		},
156 		.driver_data = (void *)&lcd800x1280_rightside_up,
157 	}, {	/* Anbernic Win600 */
158 		.matches = {
159 		  DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Anbernic"),
160 		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Win600"),
161 		},
162 		.driver_data = (void *)&lcd720x1280_rightside_up,
163 	}, {	/* Asus T100HA */
164 		.matches = {
165 		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
166 		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "T100HAN"),
167 		},
168 		.driver_data = (void *)&lcd800x1280_leftside_up,
169 	}, {	/* Asus T101HA */
170 		.matches = {
171 		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
172 		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "T101HA"),
173 		},
174 		.driver_data = (void *)&lcd800x1280_rightside_up,
175 	}, {	/* Asus T103HAF */
176 		.matches = {
177 		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
178 		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "T103HAF"),
179 		},
180 		.driver_data = (void *)&lcd800x1280_rightside_up,
181 	}, {	/* AYA NEO 2021 */
182 		.matches = {
183 		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "AYADEVICE"),
184 		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "AYA NEO 2021"),
185 		},
186 		.driver_data = (void *)&lcd800x1280_rightside_up,
187 	}, {	/* AYA NEO AIR */
188 		.matches = {
189 		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "AYANEO"),
190 		  DMI_MATCH(DMI_PRODUCT_NAME, "AIR"),
191 		},
192 		.driver_data = (void *)&lcd1080x1920_leftside_up,
193 	}, {	/* AYA NEO NEXT */
194 		.matches = {
195 		  DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "AYANEO"),
196 		  DMI_MATCH(DMI_BOARD_NAME, "NEXT"),
197 		},
198 		.driver_data = (void *)&lcd800x1280_rightside_up,
199 	}, {	/* Chuwi HiBook (CWI514) */
200 		.matches = {
201 			DMI_MATCH(DMI_BOARD_VENDOR, "Hampoo"),
202 			DMI_MATCH(DMI_BOARD_NAME, "Cherry Trail CR"),
203 			/* Above matches are too generic, add bios-date match */
204 			DMI_MATCH(DMI_BIOS_DATE, "05/07/2016"),
205 		},
206 		.driver_data = (void *)&lcd1200x1920_rightside_up,
207 	}, {	/* Chuwi Hi10 Pro (CWI529) */
208 		.matches = {
209 		  DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Hampoo"),
210 		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Hi10 pro tablet"),
211 		},
212 		.driver_data = (void *)&lcd1200x1920_rightside_up,
213 	}, {	/* Dynabook K50 */
214 		.matches = {
215 		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Dynabook Inc."),
216 		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "dynabook K50/FR"),
217 		},
218 		.driver_data = (void *)&lcd800x1280_leftside_up,
219 	}, {	/* GPD MicroPC (generic strings, also match on bios date) */
220 		.matches = {
221 		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Default string"),
222 		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"),
223 		  DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Default string"),
224 		  DMI_EXACT_MATCH(DMI_BOARD_NAME, "Default string"),
225 		},
226 		.driver_data = (void *)&gpd_micropc,
227 	}, {	/* GPD MicroPC (later BIOS versions with proper DMI strings) */
228 		.matches = {
229 		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "GPD"),
230 		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "MicroPC"),
231 		},
232 		.driver_data = (void *)&lcd720x1280_rightside_up,
233 	}, {	/* GPD Win Max */
234 		.matches = {
235 		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "GPD"),
236 		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "G1619-01"),
237 		},
238 		.driver_data = (void *)&lcd800x1280_rightside_up,
239 	}, {	/*
240 		 * GPD Pocket, note that the DMI data is less generic then
241 		 * it seems, devices with a board-vendor of "AMI Corporation"
242 		 * are quite rare, as are devices which have both board- *and*
243 		 * product-id set to "Default String"
244 		 */
245 		.matches = {
246 		  DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
247 		  DMI_EXACT_MATCH(DMI_BOARD_NAME, "Default string"),
248 		  DMI_EXACT_MATCH(DMI_BOARD_SERIAL, "Default string"),
249 		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"),
250 		},
251 		.driver_data = (void *)&gpd_pocket,
252 	}, {	/* GPD Pocket 2 (generic strings, also match on bios date) */
253 		.matches = {
254 		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Default string"),
255 		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"),
256 		  DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Default string"),
257 		  DMI_EXACT_MATCH(DMI_BOARD_NAME, "Default string"),
258 		},
259 		.driver_data = (void *)&gpd_pocket2,
260 	}, {	/* GPD Win (same note on DMI match as GPD Pocket) */
261 		.matches = {
262 		  DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
263 		  DMI_EXACT_MATCH(DMI_BOARD_NAME, "Default string"),
264 		  DMI_EXACT_MATCH(DMI_BOARD_SERIAL, "Default string"),
265 		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"),
266 		},
267 		.driver_data = (void *)&gpd_win,
268 	}, {	/* GPD Win 2 (too generic strings, also match on bios date) */
269 		.matches = {
270 		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Default string"),
271 		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"),
272 		  DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Default string"),
273 		  DMI_EXACT_MATCH(DMI_BOARD_NAME, "Default string"),
274 		},
275 		.driver_data = (void *)&gpd_win2,
276 	}, {	/* GPD Win 3 */
277 		.matches = {
278 		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "GPD"),
279 		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "G1618-03")
280 		},
281 		.driver_data = (void *)&lcd720x1280_rightside_up,
282 	}, {	/* I.T.Works TW891 */
283 		.matches = {
284 		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "To be filled by O.E.M."),
285 		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "TW891"),
286 		  DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "To be filled by O.E.M."),
287 		  DMI_EXACT_MATCH(DMI_BOARD_NAME, "TW891"),
288 		},
289 		.driver_data = (void *)&itworks_tw891,
290 	}, {	/* KD Kurio Smart C15200 2-in-1 */
291 		.matches = {
292 		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "KD Interactive"),
293 		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Kurio Smart"),
294 		  DMI_EXACT_MATCH(DMI_BOARD_NAME, "KDM960BCP"),
295 		},
296 		.driver_data = (void *)&lcd800x1280_rightside_up,
297 	}, {	/*
298 		 * Lenovo Ideapad Miix 310 laptop, only some production batches
299 		 * have a portrait screen, the resolution checks makes the quirk
300 		 * apply only to those batches.
301 		 */
302 		.matches = {
303 		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "LENOVO"),
304 		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "80SG"),
305 		  DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "MIIX 310-10ICR"),
306 		},
307 		.driver_data = (void *)&lcd800x1280_rightside_up,
308 	}, {	/* Lenovo Ideapad Miix 320 */
309 		.matches = {
310 		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "LENOVO"),
311 		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "80XF"),
312 		  DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "Lenovo MIIX 320-10ICR"),
313 		},
314 		.driver_data = (void *)&lcd800x1280_rightside_up,
315 	}, {	/* Lenovo Ideapad D330-10IGM (HD) */
316 		.matches = {
317 		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "LENOVO"),
318 		  DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "Lenovo ideapad D330-10IGM"),
319 		},
320 		.driver_data = (void *)&lcd800x1280_rightside_up,
321 	}, {	/* Lenovo Ideapad D330-10IGM (FHD) */
322 		.matches = {
323 		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "LENOVO"),
324 		  DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "Lenovo ideapad D330-10IGM"),
325 		},
326 		.driver_data = (void *)&lcd1200x1920_rightside_up,
327 	}, {	/* Lenovo Ideapad D330-10IGL (HD) */
328 		.matches = {
329 		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "LENOVO"),
330 		  DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "Lenovo ideapad D330-10IGL"),
331 		},
332 		.driver_data = (void *)&lcd800x1280_rightside_up,
333 	}, {	/* Lenovo IdeaPad Duet 3 10IGL5 */
334 		.matches = {
335 		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "LENOVO"),
336 		  DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "IdeaPad Duet 3 10IGL5"),
337 		},
338 		.driver_data = (void *)&lcd1200x1920_rightside_up,
339 	}, {	/* Lenovo Yoga Book X90F / X90L */
340 		.matches = {
341 		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Intel Corporation"),
342 		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "CHERRYVIEW D1 PLATFORM"),
343 		  DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "YETI-11"),
344 		},
345 		.driver_data = (void *)&lcd1200x1920_rightside_up,
346 	}, {	/* Lenovo Yoga Book X91F / X91L */
347 		.matches = {
348 		  /* Non exact match to match F + L versions */
349 		  DMI_MATCH(DMI_PRODUCT_NAME, "Lenovo YB1-X91"),
350 		},
351 		.driver_data = (void *)&lcd1200x1920_rightside_up,
352 	}, {	/* Lenovo Yoga Tablet 2 830F / 830L */
353 		.matches = {
354 		 /*
355 		  * Note this also matches the Lenovo Yoga Tablet 2 1050F/L
356 		  * since that uses the same mainboard. The resolution match
357 		  * will limit this to only matching on the 830F/L. Neither has
358 		  * any external video outputs so those are not a concern.
359 		  */
360 		 DMI_MATCH(DMI_SYS_VENDOR, "Intel Corp."),
361 		 DMI_MATCH(DMI_PRODUCT_NAME, "VALLEYVIEW C0 PLATFORM"),
362 		 DMI_MATCH(DMI_BOARD_NAME, "BYT-T FFD8"),
363 		 /* Partial match on beginning of BIOS version */
364 		 DMI_MATCH(DMI_BIOS_VERSION, "BLADE_21"),
365 		},
366 		.driver_data = (void *)&lcd1200x1920_rightside_up,
367 	}, {	/* Lenovo Yoga Tab 3 X90F */
368 		.matches = {
369 		 DMI_MATCH(DMI_SYS_VENDOR, "Intel Corporation"),
370 		 DMI_MATCH(DMI_PRODUCT_NAME, "CHERRYVIEW D1 PLATFORM"),
371 		 DMI_MATCH(DMI_PRODUCT_VERSION, "Blade3-10A-001"),
372 		},
373 		.driver_data = (void *)&lcd1600x2560_rightside_up,
374 	}, {	/* Nanote UMPC-01 */
375 		.matches = {
376 		 DMI_MATCH(DMI_SYS_VENDOR, "RWC CO.,LTD"),
377 		 DMI_MATCH(DMI_PRODUCT_NAME, "UMPC-01"),
378 		},
379 		.driver_data = (void *)&lcd1200x1920_rightside_up,
380 	}, {	/* OneGX1 Pro */
381 		.matches = {
382 		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "SYSTEM_MANUFACTURER"),
383 		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "SYSTEM_PRODUCT_NAME"),
384 		  DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "Default string"),
385 		},
386 		.driver_data = (void *)&onegx1_pro,
387 	}, {	/* OneXPlayer */
388 		.matches = {
389 		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ONE-NETBOOK TECHNOLOGY CO., LTD."),
390 		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "ONE XPLAYER"),
391 		},
392 		.driver_data = (void *)&lcd1600x2560_leftside_up,
393 	}, {	/* Samsung GalaxyBook 10.6 */
394 		.matches = {
395 		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
396 		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Galaxy Book 10.6"),
397 		},
398 		.driver_data = (void *)&lcd1280x1920_rightside_up,
399 	}, {	/* Valve Steam Deck */
400 		.matches = {
401 		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Valve"),
402 		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Jupiter"),
403 		  DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "1"),
404 		},
405 		.driver_data = (void *)&lcd800x1280_rightside_up,
406 	}, {	/* VIOS LTH17 */
407 		.matches = {
408 		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "VIOS"),
409 		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "LTH17"),
410 		},
411 		.driver_data = (void *)&lcd800x1280_rightside_up,
412 	}, {	/* One Mix 2S (generic strings, also match on bios date) */
413 		.matches = {
414 		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Default string"),
415 		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"),
416 		  DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Default string"),
417 		  DMI_EXACT_MATCH(DMI_BOARD_NAME, "Default string"),
418 		},
419 		.driver_data = (void *)&gpd_onemix2s,
420 	},
421 	{}
422 };
423 
424 /**
425  * drm_get_panel_orientation_quirk - Check for panel orientation quirks
426  * @width: width in pixels of the panel
427  * @height: height in pixels of the panel
428  *
429  * This function checks for platform specific (e.g. DMI based) quirks
430  * providing info on panel_orientation for systems where this cannot be
431  * probed from the hard-/firm-ware. To avoid false-positive this function
432  * takes the panel resolution as argument and checks that against the
433  * resolution expected by the quirk-table entry.
434  *
435  * Note this function is also used outside of the drm-subsys, by for example
436  * the efifb code. Because of this this function gets compiled into its own
437  * kernel-module when built as a module.
438  *
439  * Returns:
440  * A DRM_MODE_PANEL_ORIENTATION_* value if there is a quirk for this system,
441  * or DRM_MODE_PANEL_ORIENTATION_UNKNOWN if there is no quirk.
442  */
drm_get_panel_orientation_quirk(int width,int height)443 int drm_get_panel_orientation_quirk(int width, int height)
444 {
445 	const struct dmi_system_id *match;
446 	const struct drm_dmi_panel_orientation_data *data;
447 	const char *bios_date;
448 	int i;
449 
450 	for (match = dmi_first_match(orientation_data);
451 	     match;
452 	     match = dmi_first_match(match + 1)) {
453 		data = match->driver_data;
454 
455 		if (data->width != width ||
456 		    data->height != height)
457 			continue;
458 
459 		if (!data->bios_dates)
460 			return data->orientation;
461 
462 		bios_date = dmi_get_system_info(DMI_BIOS_DATE);
463 		if (!bios_date)
464 			continue;
465 
466 		i = match_string(data->bios_dates, -1, bios_date);
467 		if (i >= 0)
468 			return data->orientation;
469 	}
470 
471 	return DRM_MODE_PANEL_ORIENTATION_UNKNOWN;
472 }
473 EXPORT_SYMBOL(drm_get_panel_orientation_quirk);
474 
475 #else
476 
477 /* There are no quirks for non x86 devices yet */
drm_get_panel_orientation_quirk(int width,int height)478 int drm_get_panel_orientation_quirk(int width, int height)
479 {
480 	return DRM_MODE_PANEL_ORIENTATION_UNKNOWN;
481 }
482 EXPORT_SYMBOL(drm_get_panel_orientation_quirk);
483 
484 #endif
485 
486 MODULE_LICENSE("Dual MIT/GPL");
487