[linux-2.6-block.git] / drivers / gpu / drm / drm_panel_orientation_quirks.c

/* 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 asus_t100ha = {
	.width = 800,
	.height = 1280,
	.orientation = DRM_MODE_PANEL_ORIENTATION_LEFT_UP,
};

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_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 lcd720x1280_rightside_up = {
	.width = 720,
	.height = 1280,
	.orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_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 lcd1200x1920_rightside_up = {
	.width = 1200,
	.height = 1920,
	.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,
	}, {	/* Asus T100HA */
		.matches = {
		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "T100HAN"),
		},
		.driver_data = (void *)&asus_t100ha,
	}, {	/* 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,
	}, {	/* 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 Pocket, note that the 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,
	}, {	/* 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,
	}, {	/*
		 * 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 */
		.matches = {
		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "LENOVO"),
		  DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "81H3"),
		  DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "Lenovo ideapad D330-10IGM"),
		},
		.driver_data = (void *)&lcd1200x1920_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,
	},
	{}
};

/**
 * 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");
Commit	Line	Data
404d1a3e HG	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>
e61a656f	12	#include <linux/module.h>
404d1a3e	13	#include <drm/drm_connector.h>
f6d25e1c	14	#include <drm/drm_utils.h>
404d1a3e HG	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 asus_t100ha = {
	34	.width = 800,
	35	.height = 1280,
	36	.orientation = DRM_MODE_PANEL_ORIENTATION_LEFT_UP,
	37	};
	38
f2f2bb60 HG	39	static const struct drm_dmi_panel_orientation_data gpd_micropc = {
	40	.width = 720,
	41	.height = 1280,
	42	.bios_dates = (const char * const []){ "04/26/2019",
	43	NULL },
	44	.orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
	45	};
	46
404d1a3e HG	47	static const struct drm_dmi_panel_orientation_data gpd_pocket = {
	48	.width = 1200,
	49	.height = 1920,
	50	.bios_dates = (const char * const []){ "05/26/2017", "06/28/2017",
	51	"07/05/2017", "08/07/2017", NULL },
	52	.orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
	53	};
	54
6dab9102 HG	55	static const struct drm_dmi_panel_orientation_data gpd_pocket2 = {
	56	.width = 1200,
	57	.height = 1920,
	58	.bios_dates = (const char * const []){ "06/28/2018", "08/28/2018",
	59	"12/07/2018", NULL },
	60	.orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
	61	};
	62
404d1a3e HG	63	static const struct drm_dmi_panel_orientation_data gpd_win = {
	64	.width = 720,
	65	.height = 1280,
	66	.bios_dates = (const char * const []){
	67	"10/25/2016", "11/18/2016", "12/23/2016", "12/26/2016",
	68	"02/21/2017", "03/20/2017", "05/25/2017", NULL },
	69	.orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
	70	};
	71
1f0eb8b8 HG	72	static const struct drm_dmi_panel_orientation_data gpd_win2 = {
	73	.width = 720,
	74	.height = 1280,
	75	.bios_dates = (const char * const []){
8817b44a	76	"12/07/2017", "05/24/2018", "06/29/2018", NULL },
1f0eb8b8 HG	77	.orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
	78	};
	79
404d1a3e HG	80	static const struct drm_dmi_panel_orientation_data itworks_tw891 = {
	81	.width = 800,
	82	.height = 1280,
	83	.bios_dates = (const char * const []){ "10/16/2015", NULL },
	84	.orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
	85	};
	86
dae1ccee HG	87	static const struct drm_dmi_panel_orientation_data lcd720x1280_rightside_up = {
	88	.width = 720,
	89	.height = 1280,
	90	.orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
	91	};
	92
f55826f0	93	static const struct drm_dmi_panel_orientation_data lcd800x1280_rightside_up = {
404d1a3e HG	94	.width = 800,
	95	.height = 1280,
	96	.orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
	97	};
	98
c825dc23 DSR	99	static const struct drm_dmi_panel_orientation_data lcd1200x1920_rightside_up = {
	100	.width = 1200,
	101	.height = 1920,
	102	.orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
	103	};
	104
404d1a3e	105	static const struct dmi_system_id orientation_data[] = {
0e8afefd HG	106	{ /* Acer One 10 (S1003) */
	107	.matches = {
	108	DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Acer"),
	109	DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "One S1003"),
	110	},
a05caf9e	111	.driver_data = (void *)&lcd800x1280_rightside_up,
0e8afefd	112	}, { /* Asus T100HA */
404d1a3e HG	113	.matches = {
	114	DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
	115	DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "T100HAN"),
	116	},
	117	.driver_data = (void *)&asus_t100ha,
6c22bc18 HG	118	}, { /* Asus T101HA */
	119	.matches = {
	120	DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
	121	DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "T101HA"),
	122	},
	123	.driver_data = (void *)&lcd800x1280_rightside_up,
b5ac98cb MI	124	}, { /* Asus T103HAF */
	125	.matches = {
	126	DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
	127	DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "T103HAF"),
	128	},
	129	.driver_data = (void *)&lcd800x1280_rightside_up,
f2f2bb60 HG	130	}, { /* GPD MicroPC (generic strings, also match on bios date) */
	131	.matches = {
	132	DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Default string"),
	133	DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"),
	134	DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Default string"),
	135	DMI_EXACT_MATCH(DMI_BOARD_NAME, "Default string"),
	136	},
	137	.driver_data = (void *)&gpd_micropc,
dae1ccee HG	138	}, { /* GPD MicroPC (later BIOS versions with proper DMI strings) */
	139	.matches = {
	140	DMI_EXACT_MATCH(DMI_SYS_VENDOR, "GPD"),
	141	DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "MicroPC"),
	142	},
	143	.driver_data = (void *)&lcd720x1280_rightside_up,
404d1a3e HG	144	}, { /*
	145	* GPD Pocket, note that the the DMI data is less generic then
	146	* it seems, devices with a board-vendor of "AMI Corporation"
	147	* are quite rare, as are devices which have both board- and
	148	* product-id set to "Default String"
	149	*/
	150	.matches = {
	151	DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
	152	DMI_EXACT_MATCH(DMI_BOARD_NAME, "Default string"),
	153	DMI_EXACT_MATCH(DMI_BOARD_SERIAL, "Default string"),
	154	DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"),
	155	},
	156	.driver_data = (void *)&gpd_pocket,
6dab9102 HG	157	}, { /* GPD Pocket 2 (generic strings, also match on bios date) */
	158	.matches = {
	159	DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Default string"),
	160	DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"),
	161	DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Default string"),
	162	DMI_EXACT_MATCH(DMI_BOARD_NAME, "Default string"),
	163	},
	164	.driver_data = (void *)&gpd_pocket2,
404d1a3e HG	165	}, { /* GPD Win (same note on DMI match as GPD Pocket) */
	166	.matches = {
	167	DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
	168	DMI_EXACT_MATCH(DMI_BOARD_NAME, "Default string"),
	169	DMI_EXACT_MATCH(DMI_BOARD_SERIAL, "Default string"),
	170	DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"),
	171	},
	172	.driver_data = (void *)&gpd_win,
1f0eb8b8 HG	173	}, { /* GPD Win 2 (too generic strings, also match on bios date) */
	174	.matches = {
	175	DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Default string"),
	176	DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"),
	177	DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Default string"),
	178	DMI_EXACT_MATCH(DMI_BOARD_NAME, "Default string"),
	179	},
	180	.driver_data = (void *)&gpd_win2,
404d1a3e HG	181	}, { /* I.T.Works TW891 */
	182	.matches = {
	183	DMI_EXACT_MATCH(DMI_SYS_VENDOR, "To be filled by O.E.M."),
	184	DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "TW891"),
	185	DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "To be filled by O.E.M."),
	186	DMI_EXACT_MATCH(DMI_BOARD_NAME, "TW891"),
	187	},
	188	.driver_data = (void *)&itworks_tw891,
068b01d8 HG	189	}, { /*
	190	* Lenovo Ideapad Miix 310 laptop, only some production batches
	191	* have a portrait screen, the resolution checks makes the quirk
	192	* apply only to those batches.
	193	*/
	194	.matches = {
	195	DMI_EXACT_MATCH(DMI_SYS_VENDOR, "LENOVO"),
	196	DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "80SG"),
	197	DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "MIIX 310-10ICR"),
	198	},
f55826f0 HG	199	.driver_data = (void *)&lcd800x1280_rightside_up,
	200	}, { /* Lenovo Ideapad Miix 320 */
	201	.matches = {
	202	DMI_EXACT_MATCH(DMI_SYS_VENDOR, "LENOVO"),
	203	DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "80XF"),
	204	DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "Lenovo MIIX 320-10ICR"),
	205	},
	206	.driver_data = (void *)&lcd800x1280_rightside_up,
c825dc23 DSR	207	}, { /* Lenovo Ideapad D330 */
	208	.matches = {
	209	DMI_EXACT_MATCH(DMI_SYS_VENDOR, "LENOVO"),
	210	DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "81H3"),
	211	DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "Lenovo ideapad D330-10IGM"),
	212	},
	213	.driver_data = (void *)&lcd1200x1920_rightside_up,
404d1a3e HG	214	}, { /* VIOS LTH17 */
	215	.matches = {
	216	DMI_EXACT_MATCH(DMI_SYS_VENDOR, "VIOS"),
	217	DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "LTH17"),
	218	},
f55826f0	219	.driver_data = (void *)&lcd800x1280_rightside_up,
404d1a3e HG	220	},
	221	{}
	222	};
	223
	224	/**
	225	* drm_get_panel_orientation_quirk - Check for panel orientation quirks
	226	* @width: width in pixels of the panel
	227	* @height: height in pixels of the panel
	228	*
	229	* This function checks for platform specific (e.g. DMI based) quirks
	230	* providing info on panel_orientation for systems where this cannot be
	231	* probed from the hard-/firm-ware. To avoid false-positive this function
	232	* takes the panel resolution as argument and checks that against the
	233	* resolution expected by the quirk-table entry.
	234	*
	235	* Note this function is also used outside of the drm-subsys, by for example
	236	* the efifb code. Because of this this function gets compiled into its own
	237	* kernel-module when built as a module.
	238	*
	239	* Returns:
	240	* A DRM_MODE_PANEL_ORIENTATION_* value if there is a quirk for this system,
	241	* or DRM_MODE_PANEL_ORIENTATION_UNKNOWN if there is no quirk.
	242	*/
	243	int drm_get_panel_orientation_quirk(int width, int height)
	244	{
	245	const struct dmi_system_id *match;
	246	const struct drm_dmi_panel_orientation_data *data;
	247	const char *bios_date;
	248	int i;
	249
	250	for (match = dmi_first_match(orientation_data);
	251	match;
	252	match = dmi_first_match(match + 1)) {
	253	data = match->driver_data;
	254
	255	if (data->width != width \|\|
	256	data->height != height)
	257	continue;
	258
	259	if (!data->bios_dates)
	260	return data->orientation;
	261
	262	bios_date = dmi_get_system_info(DMI_BIOS_DATE);
	263	if (!bios_date)
	264	continue;
	265
818c05d8 AS	266	i = match_string(data->bios_dates, -1, bios_date);
	267	if (i >= 0)
	268	return data->orientation;
404d1a3e HG	269	}
	270
	271	return DRM_MODE_PANEL_ORIENTATION_UNKNOWN;
	272	}
	273	EXPORT_SYMBOL(drm_get_panel_orientation_quirk);
	274
	275	#else
	276
	277	/* There are no quirks for non x86 devices yet */
	278	int drm_get_panel_orientation_quirk(int width, int height)
	279	{
	280	return DRM_MODE_PANEL_ORIENTATION_UNKNOWN;
	281	}
	282	EXPORT_SYMBOL(drm_get_panel_orientation_quirk);
	283
	284	#endif
e61a656f DL	285
e61a656f DL	286	MODULE_LICENSE("Dual MIT/GPL");