drivers/gpu/drm/drm_panel_orientation_quirks.c - third_party/kernel - Git at Google

 /* SPDX-License-Identifier: MIT */
 /*
  * drm_panel_orientation_quirks.c -- Quirks for non-normal panel orientation
  *
  * Copyright (C) 2017 Hans de Goede <hdegoede@redhat.com>
  *
  * Note the quirks in this file are shared with fbdev/efifb and as such
  * must not depend on other drm code.
  */

 #include <linux/dmi.h>
 #include <linux/module.h>
 #include <drm/drm_connector.h>
 #include <drm/drm_utils.h>

 #ifdef CONFIG_DMI

 /*
  * Some x86 clamshell design devices use portrait tablet screens and a display
  * engine which cannot rotate in hardware, so we need to rotate the fbcon to
  * compensate. Unfortunately these (cheap) devices also typically have quite
  * generic DMI data, so we match on a combination of DMI data, screen resolution
  * and a list of known BIOS dates to avoid false positives.
  */

 struct drm_dmi_panel_orientation_data {
 	int width;
 	int height;
 	const char * const *bios_dates;
 	int orientation;
 };

 static const struct drm_dmi_panel_orientation_data gpd_micropc = {
 	.width = 720,
 	.height = 1280,
 	.bios_dates = (const char * const []){ "04/26/2019",
 		NULL },
 	.orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
 };

 static const struct drm_dmi_panel_orientation_data gpd_onemix2s = {
 	.width = 1200,
 	.height = 1920,
 	.bios_dates = (const char * const []){ "05/21/2018", "10/26/2018",
 		"03/04/2019", NULL },
 	.orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
 };

 static const struct drm_dmi_panel_orientation_data gpd_pocket = {
 	.width = 1200,
 	.height = 1920,
 	.bios_dates = (const char * const []){ "05/26/2017", "06/28/2017",
 		"07/05/2017", "08/07/2017", NULL },
 	.orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
 };

 static const struct drm_dmi_panel_orientation_data gpd_pocket2 = {
 	.width = 1200,
 	.height = 1920,
 	.bios_dates = (const char * const []){ "06/28/2018", "08/28/2018",
 		"12/07/2018", NULL },
 	.orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
 };

 static const struct drm_dmi_panel_orientation_data gpd_win = {
 	.width = 720,
 	.height = 1280,
 	.bios_dates = (const char * const []){
 		"10/25/2016", "11/18/2016", "12/23/2016", "12/26/2016",
 		"02/21/2017", "03/20/2017", "05/25/2017", NULL },
 	.orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
 };

 static const struct drm_dmi_panel_orientation_data gpd_win2 = {
 	.width = 720,
 	.height = 1280,
 	.bios_dates = (const char * const []){
 		"12/07/2017", "05/24/2018", "06/29/2018", NULL },
 	.orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
 };

 static const struct drm_dmi_panel_orientation_data itworks_tw891 = {
 	.width = 800,
 	.height = 1280,
 	.bios_dates = (const char * const []){ "10/16/2015", NULL },
 	.orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
 };

 static const struct drm_dmi_panel_orientation_data onegx1_pro = {
 	.width = 1200,
 	.height = 1920,
 	.bios_dates = (const char * const []){ "12/17/2020", NULL },
 	.orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
 };

 static const struct drm_dmi_panel_orientation_data lcd720x1280_rightside_up = {
 	.width = 720,
 	.height = 1280,
 	.orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
 };

 static const struct drm_dmi_panel_orientation_data lcd800x1280_leftside_up = {
 	.width = 800,
 	.height = 1280,
 	.orientation = DRM_MODE_PANEL_ORIENTATION_LEFT_UP,
 };

 static const struct drm_dmi_panel_orientation_data lcd800x1280_rightside_up = {
 	.width = 800,
 	.height = 1280,
 	.orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
 };

 static const struct drm_dmi_panel_orientation_data lcd1080x1920_leftside_up = {
 	.width = 1080,
 	.height = 1920,
 	.orientation = DRM_MODE_PANEL_ORIENTATION_LEFT_UP,
 };

 static const struct drm_dmi_panel_orientation_data lcd1080x1920_rightside_up = {
 	.width = 1080,
 	.height = 1920,
 	.orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
 };

 static const struct drm_dmi_panel_orientation_data lcd1200x1920_rightside_up = {
 	.width = 1200,
 	.height = 1920,
 	.orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
 };

 static const struct drm_dmi_panel_orientation_data lcd1280x1920_rightside_up = {
 	.width = 1280,
 	.height = 1920,
 	.orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
 };

 static const struct drm_dmi_panel_orientation_data lcd1600x2560_leftside_up = {
 	.width = 1600,
 	.height = 2560,
 	.orientation = DRM_MODE_PANEL_ORIENTATION_LEFT_UP,
 };

 static const struct drm_dmi_panel_orientation_data lcd1600x2560_rightside_up = {
 	.width = 1600,
 	.height = 2560,
 	.orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
 };

 static const struct dmi_system_id orientation_data[] = {
 	{	/* Acer One 10 (S1003) */
 		.matches = {
 		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Acer"),
 		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "One S1003"),
 		},
 		.driver_data = (void *)&lcd800x1280_rightside_up,
 	}, {	/* Acer Switch V 10 (SW5-017) */
 		.matches = {
 		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Acer"),
 		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "SW5-017"),
 		},
 		.driver_data = (void *)&lcd800x1280_rightside_up,
 	}, {	/* Anbernic Win600 */
 		.matches = {
 		  DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Anbernic"),
 		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Win600"),
 		},
 		.driver_data = (void *)&lcd720x1280_rightside_up,
 	}, {	/* Asus T100HA */
 		.matches = {
 		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "T100HAN"),
 		},
 		.driver_data = (void *)&lcd800x1280_leftside_up,
 	}, {	/* Asus T101HA */
 		.matches = {
 		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "T101HA"),
 		},
 		.driver_data = (void *)&lcd800x1280_rightside_up,
 	}, {	/* Asus T103HAF */
 		.matches = {
 		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "T103HAF"),
 		},
 		.driver_data = (void *)&lcd800x1280_rightside_up,
 	}, {	/* AYA NEO 2021 */
 		.matches = {
 		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "AYADEVICE"),
 		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "AYA NEO 2021"),
 		},
 		.driver_data = (void *)&lcd800x1280_rightside_up,
 	}, {	/* AYA NEO AIR */
 		.matches = {
 		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "AYANEO"),
 		  DMI_MATCH(DMI_PRODUCT_NAME, "AIR"),
 		},
 		.driver_data = (void *)&lcd1080x1920_leftside_up,
 	}, {	/* AYA NEO NEXT */
 		.matches = {
 		  DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "AYANEO"),
 		  DMI_MATCH(DMI_BOARD_NAME, "NEXT"),
 		},
 		.driver_data = (void *)&lcd800x1280_rightside_up,
 	}, {	/* Chuwi HiBook (CWI514) */
 		.matches = {
 			DMI_MATCH(DMI_BOARD_VENDOR, "Hampoo"),
 			DMI_MATCH(DMI_BOARD_NAME, "Cherry Trail CR"),
 			/* Above matches are too generic, add bios-date match */
 			DMI_MATCH(DMI_BIOS_DATE, "05/07/2016"),
 		},
 		.driver_data = (void *)&lcd1200x1920_rightside_up,
 	}, {	/* Chuwi Hi10 Pro (CWI529) */
 		.matches = {
 		  DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Hampoo"),
 		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Hi10 pro tablet"),
 		},
 		.driver_data = (void *)&lcd1200x1920_rightside_up,
 	}, {	/* Dynabook K50 */
 		.matches = {
 		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Dynabook Inc."),
 		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "dynabook K50/FR"),
 		},
 		.driver_data = (void *)&lcd800x1280_leftside_up,
 	}, {	/* GPD MicroPC (generic strings, also match on bios date) */
 		.matches = {
 		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Default string"),
 		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"),
 		  DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Default string"),
 		  DMI_EXACT_MATCH(DMI_BOARD_NAME, "Default string"),
 		},
 		.driver_data = (void *)&gpd_micropc,
 	}, {	/* GPD MicroPC (later BIOS versions with proper DMI strings) */
 		.matches = {
 		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "GPD"),
 		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "MicroPC"),
 		},
 		.driver_data = (void *)&lcd720x1280_rightside_up,
 	}, {	/* GPD Win Max */
 		.matches = {
 		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "GPD"),
 		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "G1619-01"),
 		},
 		.driver_data = (void *)&lcd800x1280_rightside_up,
 	}, {	/*
 		 * GPD Pocket, note that the DMI data is less generic then
 		 * it seems, devices with a board-vendor of "AMI Corporation"
 		 * are quite rare, as are devices which have both board- *and*
 		 * product-id set to "Default String"
 		 */
 		.matches = {
 		  DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
 		  DMI_EXACT_MATCH(DMI_BOARD_NAME, "Default string"),
 		  DMI_EXACT_MATCH(DMI_BOARD_SERIAL, "Default string"),
 		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"),
 		},
 		.driver_data = (void *)&gpd_pocket,
 	}, {	/* GPD Pocket 2 (generic strings, also match on bios date) */
 		.matches = {
 		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Default string"),
 		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"),
 		  DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Default string"),
 		  DMI_EXACT_MATCH(DMI_BOARD_NAME, "Default string"),
 		},
 		.driver_data = (void *)&gpd_pocket2,
 	}, {	/* GPD Win (same note on DMI match as GPD Pocket) */
 		.matches = {
 		  DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
 		  DMI_EXACT_MATCH(DMI_BOARD_NAME, "Default string"),
 		  DMI_EXACT_MATCH(DMI_BOARD_SERIAL, "Default string"),
 		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"),
 		},
 		.driver_data = (void *)&gpd_win,
 	}, {	/* GPD Win 2 (too generic strings, also match on bios date) */
 		.matches = {
 		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Default string"),
 		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"),
 		  DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Default string"),
 		  DMI_EXACT_MATCH(DMI_BOARD_NAME, "Default string"),
 		},
 		.driver_data = (void *)&gpd_win2,
 	}, {	/* GPD Win 3 */
 		.matches = {
 		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "GPD"),
 		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "G1618-03")
 		},
 		.driver_data = (void *)&lcd720x1280_rightside_up,
 	}, {	/* GPD Win Mini */
 		.matches = {
 		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "GPD"),
 		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "G1617-01")
 		},
 		.driver_data = (void *)&lcd1080x1920_rightside_up,
 	}, {	/* I.T.Works TW891 */
 		.matches = {
 		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "To be filled by O.E.M."),
 		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "TW891"),
 		  DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "To be filled by O.E.M."),
 		  DMI_EXACT_MATCH(DMI_BOARD_NAME, "TW891"),
 		},
 		.driver_data = (void *)&itworks_tw891,
 	}, {	/* KD Kurio Smart C15200 2-in-1 */
 		.matches = {
 		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "KD Interactive"),
 		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Kurio Smart"),
 		  DMI_EXACT_MATCH(DMI_BOARD_NAME, "KDM960BCP"),
 		},
 		.driver_data = (void *)&lcd800x1280_rightside_up,
 	}, {	/*
 		 * Lenovo Ideapad Miix 310 laptop, only some production batches
 		 * have a portrait screen, the resolution checks makes the quirk
 		 * apply only to those batches.
 		 */
 		.matches = {
 		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "LENOVO"),
 		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "80SG"),
 		  DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "MIIX 310-10ICR"),
 		},
 		.driver_data = (void *)&lcd800x1280_rightside_up,
 	}, {	/* Lenovo Ideapad Miix 320 */
 		.matches = {
 		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "LENOVO"),
 		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "80XF"),
 		  DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "Lenovo MIIX 320-10ICR"),
 		},
 		.driver_data = (void *)&lcd800x1280_rightside_up,
 	}, {	/* Lenovo Ideapad D330-10IGM (HD) */
 		.matches = {
 		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "LENOVO"),
 		  DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "Lenovo ideapad D330-10IGM"),
 		},
 		.driver_data = (void *)&lcd800x1280_rightside_up,
 	}, {	/* Lenovo Ideapad D330-10IGM (FHD) */
 		.matches = {
 		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "LENOVO"),
 		  DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "Lenovo ideapad D330-10IGM"),
 		},
 		.driver_data = (void *)&lcd1200x1920_rightside_up,
 	}, {	/* Lenovo Ideapad D330-10IGL (HD) */
 		.matches = {
 		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "LENOVO"),
 		  DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "Lenovo ideapad D330-10IGL"),
 		},
 		.driver_data = (void *)&lcd800x1280_rightside_up,
 	}, {	/* Lenovo IdeaPad Duet 3 10IGL5 */
 		.matches = {
 		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "LENOVO"),
 		  DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "IdeaPad Duet 3 10IGL5"),
 		},
 		.driver_data = (void *)&lcd1200x1920_rightside_up,
 	}, {	/* Lenovo Legion Go 8APU1 */
 		.matches = {
 		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "LENOVO"),
 		  DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "Legion Go 8APU1"),
 		},
 		.driver_data = (void *)&lcd1600x2560_leftside_up,
 	}, {	/* Lenovo Yoga Book X90F / X90L */
 		.matches = {
 		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Intel Corporation"),
 		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "CHERRYVIEW D1 PLATFORM"),
 		  DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "YETI-11"),
 		},
 		.driver_data = (void *)&lcd1200x1920_rightside_up,
 	}, {	/* Lenovo Yoga Book X91F / X91L */
 		.matches = {
 		  /* Non exact match to match F + L versions */
 		  DMI_MATCH(DMI_PRODUCT_NAME, "Lenovo YB1-X91"),
 		},
 		.driver_data = (void *)&lcd1200x1920_rightside_up,
 	}, {	/* Lenovo Yoga Tablet 2 830F / 830L */
 		.matches = {
 		 /*
 		  * Note this also matches the Lenovo Yoga Tablet 2 1050F/L
 		  * since that uses the same mainboard. The resolution match
 		  * will limit this to only matching on the 830F/L. Neither has
 		  * any external video outputs so those are not a concern.
 		  */
 		 DMI_MATCH(DMI_SYS_VENDOR, "Intel Corp."),
 		 DMI_MATCH(DMI_PRODUCT_NAME, "VALLEYVIEW C0 PLATFORM"),
 		 DMI_MATCH(DMI_BOARD_NAME, "BYT-T FFD8"),
 		 /* Partial match on beginning of BIOS version */
 		 DMI_MATCH(DMI_BIOS_VERSION, "BLADE_21"),
 		},
 		.driver_data = (void *)&lcd1200x1920_rightside_up,
 	}, {	/* Lenovo Yoga Tab 3 X90F */
 		.matches = {
 		 DMI_MATCH(DMI_SYS_VENDOR, "Intel Corporation"),
 		 DMI_MATCH(DMI_PRODUCT_NAME, "CHERRYVIEW D1 PLATFORM"),
 		 DMI_MATCH(DMI_PRODUCT_VERSION, "Blade3-10A-001"),
 		},
 		.driver_data = (void *)&lcd1600x2560_rightside_up,
 	}, {	/* Nanote UMPC-01 */
 		.matches = {
 		 DMI_MATCH(DMI_SYS_VENDOR, "RWC CO.,LTD"),
 		 DMI_MATCH(DMI_PRODUCT_NAME, "UMPC-01"),
 		},
 		.driver_data = (void *)&lcd1200x1920_rightside_up,
 	}, {	/* OneGX1 Pro */
 		.matches = {
 		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "SYSTEM_MANUFACTURER"),
 		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "SYSTEM_PRODUCT_NAME"),
 		  DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "Default string"),
 		},
 		.driver_data = (void *)&onegx1_pro,
 	}, {	/* OneXPlayer */
 		.matches = {
 		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ONE-NETBOOK TECHNOLOGY CO., LTD."),
 		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "ONE XPLAYER"),
 		},
 		.driver_data = (void *)&lcd1600x2560_leftside_up,
 	}, {	/* Samsung GalaxyBook 10.6 */
 		.matches = {
 		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
 		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Galaxy Book 10.6"),
 		},
 		.driver_data = (void *)&lcd1280x1920_rightside_up,
 	}, {	/* Valve Steam Deck */
 		.matches = {
 		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Valve"),
 		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Jupiter"),
 		  DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "1"),
 		},
 		.driver_data = (void *)&lcd800x1280_rightside_up,
 	}, {	/* Valve Steam Deck */
 		.matches = {
 		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Valve"),
 		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Galileo"),
 		  DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "1"),
 		},
 		.driver_data = (void *)&lcd800x1280_rightside_up,
 	}, {	/* VIOS LTH17 */
 		.matches = {
 		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "VIOS"),
 		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "LTH17"),
 		},
 		.driver_data = (void *)&lcd800x1280_rightside_up,
 	}, {	/* One Mix 2S (generic strings, also match on bios date) */
 		.matches = {
 		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Default string"),
 		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"),
 		  DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Default string"),
 		  DMI_EXACT_MATCH(DMI_BOARD_NAME, "Default string"),
 		},
 		.driver_data = (void *)&gpd_onemix2s,
 	},
 	{}
 };

 /**
  * drm_get_panel_orientation_quirk - Check for panel orientation quirks
  * @width: width in pixels of the panel
  * @height: height in pixels of the panel
  *
  * This function checks for platform specific (e.g. DMI based) quirks
  * providing info on panel_orientation for systems where this cannot be
  * probed from the hard-/firm-ware. To avoid false-positive this function
  * takes the panel resolution as argument and checks that against the
  * resolution expected by the quirk-table entry.
  *
  * Note this function is also used outside of the drm-subsys, by for example
  * the efifb code. Because of this this function gets compiled into its own
  * kernel-module when built as a module.
  *
  * Returns:
  * A DRM_MODE_PANEL_ORIENTATION_* value if there is a quirk for this system,
  * or DRM_MODE_PANEL_ORIENTATION_UNKNOWN if there is no quirk.
  */
 int drm_get_panel_orientation_quirk(int width, int height)
 {
 	const struct dmi_system_id *match;
 	const struct drm_dmi_panel_orientation_data *data;
 	const char *bios_date;
 	int i;

 	for (match = dmi_first_match(orientation_data);
 	     match;
 	     match = dmi_first_match(match + 1)) {
 		data = match->driver_data;

 		if (data->width != width ||
 		    data->height != height)
 			continue;

 		if (!data->bios_dates)
 			return data->orientation;

 		bios_date = dmi_get_system_info(DMI_BIOS_DATE);
 		if (!bios_date)
 			continue;

 		i = match_string(data->bios_dates, -1, bios_date);
 		if (i >= 0)
 			return data->orientation;
 	}

 	return DRM_MODE_PANEL_ORIENTATION_UNKNOWN;
 }
 EXPORT_SYMBOL(drm_get_panel_orientation_quirk);

 #else

 /* There are no quirks for non x86 devices yet */
 int drm_get_panel_orientation_quirk(int width, int height)
 {
 	return DRM_MODE_PANEL_ORIENTATION_UNKNOWN;
 }
 EXPORT_SYMBOL(drm_get_panel_orientation_quirk);

 #endif

 MODULE_LICENSE("Dual MIT/GPL");
	/* SPDX-License-Identifier: MIT */
	/*
	* drm_panel_orientation_quirks.c -- Quirks for non-normal panel orientation
	*
	* Copyright (C) 2017 Hans de Goede <hdegoede@redhat.com>
	*
	* Note the quirks in this file are shared with fbdev/efifb and as such
	* must not depend on other drm code.
	*/

	#include <linux/dmi.h>
	#include <linux/module.h>
	#include <drm/drm_connector.h>
	#include <drm/drm_utils.h>

	#ifdef CONFIG_DMI

	/*
	* Some x86 clamshell design devices use portrait tablet screens and a display
	* engine which cannot rotate in hardware, so we need to rotate the fbcon to
	* compensate. Unfortunately these (cheap) devices also typically have quite
	* generic DMI data, so we match on a combination of DMI data, screen resolution
	* and a list of known BIOS dates to avoid false positives.
	*/

	struct drm_dmi_panel_orientation_data {
	int width;
	int height;
	const char * const *bios_dates;
	int orientation;
	};

	static const struct drm_dmi_panel_orientation_data gpd_micropc = {
	.width = 720,
	.height = 1280,
	.bios_dates = (const char * const []){ "04/26/2019",
	NULL },
	.orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
	};

	static const struct drm_dmi_panel_orientation_data gpd_onemix2s = {
	.width = 1200,
	.height = 1920,
	.bios_dates = (const char * const []){ "05/21/2018", "10/26/2018",
	"03/04/2019", NULL },
	.orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
	};

	static const struct drm_dmi_panel_orientation_data gpd_pocket = {
	.width = 1200,
	.height = 1920,
	.bios_dates = (const char * const []){ "05/26/2017", "06/28/2017",
	"07/05/2017", "08/07/2017", NULL },
	.orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
	};

	static const struct drm_dmi_panel_orientation_data gpd_pocket2 = {
	.width = 1200,
	.height = 1920,
	.bios_dates = (const char * const []){ "06/28/2018", "08/28/2018",
	"12/07/2018", NULL },
	.orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
	};

	static const struct drm_dmi_panel_orientation_data gpd_win = {
	.width = 720,
	.height = 1280,
	.bios_dates = (const char * const []){
	"10/25/2016", "11/18/2016", "12/23/2016", "12/26/2016",
	"02/21/2017", "03/20/2017", "05/25/2017", NULL },
	.orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
	};

	static const struct drm_dmi_panel_orientation_data gpd_win2 = {
	.width = 720,
	.height = 1280,
	.bios_dates = (const char * const []){
	"12/07/2017", "05/24/2018", "06/29/2018", NULL },
	.orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
	};

	static const struct drm_dmi_panel_orientation_data itworks_tw891 = {
	.width = 800,
	.height = 1280,
	.bios_dates = (const char * const []){ "10/16/2015", NULL },
	.orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
	};

	static const struct drm_dmi_panel_orientation_data onegx1_pro = {
	.width = 1200,
	.height = 1920,
	.bios_dates = (const char * const []){ "12/17/2020", NULL },
	.orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
	};

	static const struct drm_dmi_panel_orientation_data lcd720x1280_rightside_up = {
	.width = 720,
	.height = 1280,
	.orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
	};

	static const struct drm_dmi_panel_orientation_data lcd800x1280_leftside_up = {
	.width = 800,
	.height = 1280,
	.orientation = DRM_MODE_PANEL_ORIENTATION_LEFT_UP,
	};

	static const struct drm_dmi_panel_orientation_data lcd800x1280_rightside_up = {
	.width = 800,
	.height = 1280,
	.orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
	};

	static const struct drm_dmi_panel_orientation_data lcd1080x1920_leftside_up = {
	.width = 1080,
	.height = 1920,
	.orientation = DRM_MODE_PANEL_ORIENTATION_LEFT_UP,
	};

	static const struct drm_dmi_panel_orientation_data lcd1080x1920_rightside_up = {
	.width = 1080,
	.height = 1920,
	.orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
	};

	static const struct drm_dmi_panel_orientation_data lcd1200x1920_rightside_up = {
	.width = 1200,
	.height = 1920,
	.orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
	};

	static const struct drm_dmi_panel_orientation_data lcd1280x1920_rightside_up = {
	.width = 1280,
	.height = 1920,
	.orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
	};

	static const struct drm_dmi_panel_orientation_data lcd1600x2560_leftside_up = {
	.width = 1600,
	.height = 2560,
	.orientation = DRM_MODE_PANEL_ORIENTATION_LEFT_UP,
	};

	static const struct drm_dmi_panel_orientation_data lcd1600x2560_rightside_up = {
	.width = 1600,
	.height = 2560,
	.orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
	};

	static const struct dmi_system_id orientation_data[] = {
	{ /* Acer One 10 (S1003) */
	.matches = {
	DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Acer"),
	DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "One S1003"),
	},
	.driver_data = (void *)&lcd800x1280_rightside_up,
	}, { /* Acer Switch V 10 (SW5-017) */
	.matches = {
	DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Acer"),
	DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "SW5-017"),
	},
	.driver_data = (void *)&lcd800x1280_rightside_up,
	}, { /* Anbernic Win600 */
	.matches = {
	DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Anbernic"),
	DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Win600"),
	},
	.driver_data = (void *)&lcd720x1280_rightside_up,
	}, { /* Asus T100HA */
	.matches = {
	DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
	DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "T100HAN"),
	},
	.driver_data = (void *)&lcd800x1280_leftside_up,
	}, { /* Asus T101HA */
	.matches = {
	DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
	DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "T101HA"),
	},
	.driver_data = (void *)&lcd800x1280_rightside_up,
	}, { /* Asus T103HAF */
	.matches = {
	DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
	DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "T103HAF"),
	},
	.driver_data = (void *)&lcd800x1280_rightside_up,
	}, { /* AYA NEO 2021 */
	.matches = {
	DMI_EXACT_MATCH(DMI_SYS_VENDOR, "AYADEVICE"),
	DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "AYA NEO 2021"),
	},
	.driver_data = (void *)&lcd800x1280_rightside_up,
	}, { /* AYA NEO AIR */
	.matches = {
	DMI_EXACT_MATCH(DMI_SYS_VENDOR, "AYANEO"),
	DMI_MATCH(DMI_PRODUCT_NAME, "AIR"),
	},
	.driver_data = (void *)&lcd1080x1920_leftside_up,
	}, { /* AYA NEO NEXT */
	.matches = {
	DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "AYANEO"),
	DMI_MATCH(DMI_BOARD_NAME, "NEXT"),
	},
	.driver_data = (void *)&lcd800x1280_rightside_up,
	}, { /* Chuwi HiBook (CWI514) */
	.matches = {
	DMI_MATCH(DMI_BOARD_VENDOR, "Hampoo"),
	DMI_MATCH(DMI_BOARD_NAME, "Cherry Trail CR"),
	/* Above matches are too generic, add bios-date match */
	DMI_MATCH(DMI_BIOS_DATE, "05/07/2016"),
	},
	.driver_data = (void *)&lcd1200x1920_rightside_up,
	}, { /* Chuwi Hi10 Pro (CWI529) */
	.matches = {
	DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Hampoo"),
	DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Hi10 pro tablet"),
	},
	.driver_data = (void *)&lcd1200x1920_rightside_up,
	}, { /* Dynabook K50 */
	.matches = {
	DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Dynabook Inc."),
	DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "dynabook K50/FR"),
	},
	.driver_data = (void *)&lcd800x1280_leftside_up,
	}, { /* GPD MicroPC (generic strings, also match on bios date) */
	.matches = {
	DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Default string"),
	DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"),
	DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Default string"),
	DMI_EXACT_MATCH(DMI_BOARD_NAME, "Default string"),
	},
	.driver_data = (void *)&gpd_micropc,
	}, { /* GPD MicroPC (later BIOS versions with proper DMI strings) */
	.matches = {
	DMI_EXACT_MATCH(DMI_SYS_VENDOR, "GPD"),
	DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "MicroPC"),
	},
	.driver_data = (void *)&lcd720x1280_rightside_up,
	}, { /* GPD Win Max */
	.matches = {
	DMI_EXACT_MATCH(DMI_SYS_VENDOR, "GPD"),
	DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "G1619-01"),
	},
	.driver_data = (void *)&lcd800x1280_rightside_up,
	}, { /*
	* GPD Pocket, note that the DMI data is less generic then
	* it seems, devices with a board-vendor of "AMI Corporation"
	* are quite rare, as are devices which have both board- and
	* product-id set to "Default String"
	*/
	.matches = {
	DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
	DMI_EXACT_MATCH(DMI_BOARD_NAME, "Default string"),
	DMI_EXACT_MATCH(DMI_BOARD_SERIAL, "Default string"),
	DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"),
	},
	.driver_data = (void *)&gpd_pocket,
	}, { /* GPD Pocket 2 (generic strings, also match on bios date) */
	.matches = {
	DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Default string"),
	DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"),
	DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Default string"),
	DMI_EXACT_MATCH(DMI_BOARD_NAME, "Default string"),
	},
	.driver_data = (void *)&gpd_pocket2,
	}, { /* GPD Win (same note on DMI match as GPD Pocket) */
	.matches = {
	DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
	DMI_EXACT_MATCH(DMI_BOARD_NAME, "Default string"),
	DMI_EXACT_MATCH(DMI_BOARD_SERIAL, "Default string"),
	DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"),
	},
	.driver_data = (void *)&gpd_win,
	}, { /* GPD Win 2 (too generic strings, also match on bios date) */
	.matches = {
	DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Default string"),
	DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"),
	DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Default string"),
	DMI_EXACT_MATCH(DMI_BOARD_NAME, "Default string"),
	},
	.driver_data = (void *)&gpd_win2,
	}, { /* GPD Win 3 */
	.matches = {
	DMI_EXACT_MATCH(DMI_SYS_VENDOR, "GPD"),
	DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "G1618-03")
	},
	.driver_data = (void *)&lcd720x1280_rightside_up,
	}, { /* GPD Win Mini */
	.matches = {
	DMI_EXACT_MATCH(DMI_SYS_VENDOR, "GPD"),
	DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "G1617-01")
	},
	.driver_data = (void *)&lcd1080x1920_rightside_up,
	}, { /* I.T.Works TW891 */
	.matches = {
	DMI_EXACT_MATCH(DMI_SYS_VENDOR, "To be filled by O.E.M."),
	DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "TW891"),
	DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "To be filled by O.E.M."),
	DMI_EXACT_MATCH(DMI_BOARD_NAME, "TW891"),
	},
	.driver_data = (void *)&itworks_tw891,
	}, { /* KD Kurio Smart C15200 2-in-1 */
	.matches = {
	DMI_EXACT_MATCH(DMI_SYS_VENDOR, "KD Interactive"),
	DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Kurio Smart"),
	DMI_EXACT_MATCH(DMI_BOARD_NAME, "KDM960BCP"),
	},
	.driver_data = (void *)&lcd800x1280_rightside_up,
	}, { /*
	* Lenovo Ideapad Miix 310 laptop, only some production batches
	* have a portrait screen, the resolution checks makes the quirk
	* apply only to those batches.
	*/
	.matches = {
	DMI_EXACT_MATCH(DMI_SYS_VENDOR, "LENOVO"),
	DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "80SG"),
	DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "MIIX 310-10ICR"),
	},
	.driver_data = (void *)&lcd800x1280_rightside_up,
	}, { /* Lenovo Ideapad Miix 320 */
	.matches = {
	DMI_EXACT_MATCH(DMI_SYS_VENDOR, "LENOVO"),
	DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "80XF"),
	DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "Lenovo MIIX 320-10ICR"),
	},
	.driver_data = (void *)&lcd800x1280_rightside_up,
	}, { /* Lenovo Ideapad D330-10IGM (HD) */
	.matches = {
	DMI_EXACT_MATCH(DMI_SYS_VENDOR, "LENOVO"),
	DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "Lenovo ideapad D330-10IGM"),
	},
	.driver_data = (void *)&lcd800x1280_rightside_up,
	}, { /* Lenovo Ideapad D330-10IGM (FHD) */
	.matches = {
	DMI_EXACT_MATCH(DMI_SYS_VENDOR, "LENOVO"),
	DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "Lenovo ideapad D330-10IGM"),
	},
	.driver_data = (void *)&lcd1200x1920_rightside_up,
	}, { /* Lenovo Ideapad D330-10IGL (HD) */
	.matches = {
	DMI_EXACT_MATCH(DMI_SYS_VENDOR, "LENOVO"),
	DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "Lenovo ideapad D330-10IGL"),
	},
	.driver_data = (void *)&lcd800x1280_rightside_up,
	}, { /* Lenovo IdeaPad Duet 3 10IGL5 */
	.matches = {
	DMI_EXACT_MATCH(DMI_SYS_VENDOR, "LENOVO"),
	DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "IdeaPad Duet 3 10IGL5"),
	},
	.driver_data = (void *)&lcd1200x1920_rightside_up,
	}, { /* Lenovo Legion Go 8APU1 */
	.matches = {
	DMI_EXACT_MATCH(DMI_SYS_VENDOR, "LENOVO"),
	DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "Legion Go 8APU1"),
	},
	.driver_data = (void *)&lcd1600x2560_leftside_up,
	}, { /* Lenovo Yoga Book X90F / X90L */
	.matches = {
	DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Intel Corporation"),
	DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "CHERRYVIEW D1 PLATFORM"),
	DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "YETI-11"),
	},
	.driver_data = (void *)&lcd1200x1920_rightside_up,
	}, { /* Lenovo Yoga Book X91F / X91L */
	.matches = {
	/* Non exact match to match F + L versions */
	DMI_MATCH(DMI_PRODUCT_NAME, "Lenovo YB1-X91"),
	},
	.driver_data = (void *)&lcd1200x1920_rightside_up,
	}, { /* Lenovo Yoga Tablet 2 830F / 830L */
	.matches = {
	/*
	* Note this also matches the Lenovo Yoga Tablet 2 1050F/L
	* since that uses the same mainboard. The resolution match
	* will limit this to only matching on the 830F/L. Neither has
	* any external video outputs so those are not a concern.
	*/
	DMI_MATCH(DMI_SYS_VENDOR, "Intel Corp."),
	DMI_MATCH(DMI_PRODUCT_NAME, "VALLEYVIEW C0 PLATFORM"),
	DMI_MATCH(DMI_BOARD_NAME, "BYT-T FFD8"),
	/* Partial match on beginning of BIOS version */
	DMI_MATCH(DMI_BIOS_VERSION, "BLADE_21"),
	},
	.driver_data = (void *)&lcd1200x1920_rightside_up,
	}, { /* Lenovo Yoga Tab 3 X90F */
	.matches = {
	DMI_MATCH(DMI_SYS_VENDOR, "Intel Corporation"),
	DMI_MATCH(DMI_PRODUCT_NAME, "CHERRYVIEW D1 PLATFORM"),
	DMI_MATCH(DMI_PRODUCT_VERSION, "Blade3-10A-001"),
	},
	.driver_data = (void *)&lcd1600x2560_rightside_up,
	}, { /* Nanote UMPC-01 */
	.matches = {
	DMI_MATCH(DMI_SYS_VENDOR, "RWC CO.,LTD"),
	DMI_MATCH(DMI_PRODUCT_NAME, "UMPC-01"),
	},
	.driver_data = (void *)&lcd1200x1920_rightside_up,
	}, { /* OneGX1 Pro */
	.matches = {
	DMI_EXACT_MATCH(DMI_SYS_VENDOR, "SYSTEM_MANUFACTURER"),
	DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "SYSTEM_PRODUCT_NAME"),
	DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "Default string"),
	},
	.driver_data = (void *)&onegx1_pro,
	}, { /* OneXPlayer */
	.matches = {
	DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ONE-NETBOOK TECHNOLOGY CO., LTD."),
	DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "ONE XPLAYER"),
	},
	.driver_data = (void *)&lcd1600x2560_leftside_up,
	}, { /* Samsung GalaxyBook 10.6 */
	.matches = {
	DMI_EXACT_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
	DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Galaxy Book 10.6"),
	},
	.driver_data = (void *)&lcd1280x1920_rightside_up,
	}, { /* Valve Steam Deck */
	.matches = {
	DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Valve"),
	DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Jupiter"),
	DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "1"),
	},
	.driver_data = (void *)&lcd800x1280_rightside_up,
	}, { /* Valve Steam Deck */
	.matches = {
	DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Valve"),
	DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Galileo"),
	DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "1"),
	},
	.driver_data = (void *)&lcd800x1280_rightside_up,
	}, { /* VIOS LTH17 */
	.matches = {
	DMI_EXACT_MATCH(DMI_SYS_VENDOR, "VIOS"),
	DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "LTH17"),
	},
	.driver_data = (void *)&lcd800x1280_rightside_up,
	}, { /* One Mix 2S (generic strings, also match on bios date) */
	.matches = {
	DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Default string"),
	DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"),
	DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Default string"),
	DMI_EXACT_MATCH(DMI_BOARD_NAME, "Default string"),
	},
	.driver_data = (void *)&gpd_onemix2s,
	},
	{}
	};

	/**
	* drm_get_panel_orientation_quirk - Check for panel orientation quirks
	* @width: width in pixels of the panel
	* @height: height in pixels of the panel
	*
	* This function checks for platform specific (e.g. DMI based) quirks
	* providing info on panel_orientation for systems where this cannot be
	* probed from the hard-/firm-ware. To avoid false-positive this function
	* takes the panel resolution as argument and checks that against the
	* resolution expected by the quirk-table entry.
	*
	* Note this function is also used outside of the drm-subsys, by for example
	* the efifb code. Because of this this function gets compiled into its own
	* kernel-module when built as a module.
	*
	* Returns:
	* A DRM_MODE_PANEL_ORIENTATION_* value if there is a quirk for this system,
	* or DRM_MODE_PANEL_ORIENTATION_UNKNOWN if there is no quirk.
	*/
	int drm_get_panel_orientation_quirk(int width, int height)
	{
	const struct dmi_system_id *match;
	const struct drm_dmi_panel_orientation_data *data;
	const char *bios_date;
	int i;

	for (match = dmi_first_match(orientation_data);
	match;
	match = dmi_first_match(match + 1)) {
	data = match->driver_data;

	if (data->width != width \|\|
	data->height != height)
	continue;

	if (!data->bios_dates)
	return data->orientation;

	bios_date = dmi_get_system_info(DMI_BIOS_DATE);
	if (!bios_date)
	continue;

	i = match_string(data->bios_dates, -1, bios_date);
	if (i >= 0)
	return data->orientation;
	}

	return DRM_MODE_PANEL_ORIENTATION_UNKNOWN;
	}
	EXPORT_SYMBOL(drm_get_panel_orientation_quirk);

	#else

	/* There are no quirks for non x86 devices yet */
	int drm_get_panel_orientation_quirk(int width, int height)
	{
	return DRM_MODE_PANEL_ORIENTATION_UNKNOWN;
	}
	EXPORT_SYMBOL(drm_get_panel_orientation_quirk);

	#endif

	MODULE_LICENSE("Dual MIT/GPL");