drivers/gpu/drm/drm_panel_orientation_quirks.c

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