1 /* SPDX-License-Identifier: MIT */
3 * drm_panel_orientation_quirks.c -- Quirks for non-normal panel orientation
5 * Copyright (C) 2017 Hans de Goede <hdegoede@redhat.com>
7 * Note the quirks in this file are shared with fbdev/efifb and as such
8 * must not depend on other drm code.
11 #include <linux/dmi.h>
12 #include <linux/module.h>
13 #include <drm/drm_connector.h>
14 #include <drm/drm_utils.h>
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.
26 struct drm_dmi_panel_orientation_data {
29 const char * const *bios_dates;
33 static const struct drm_dmi_panel_orientation_data asus_t100ha = {
36 .orientation = DRM_MODE_PANEL_ORIENTATION_LEFT_UP,
39 static const struct drm_dmi_panel_orientation_data gpd_micropc = {
42 .bios_dates = (const char * const []){ "04/26/2019",
44 .orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
47 static const struct drm_dmi_panel_orientation_data gpd_pocket = {
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,
55 static const struct drm_dmi_panel_orientation_data gpd_pocket2 = {
58 .bios_dates = (const char * const []){ "06/28/2018", "08/28/2018",
60 .orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
63 static const struct drm_dmi_panel_orientation_data gpd_win = {
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,
72 static const struct drm_dmi_panel_orientation_data itworks_tw891 = {
75 .bios_dates = (const char * const []){ "10/16/2015", NULL },
76 .orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
79 static const struct drm_dmi_panel_orientation_data lcd720x1280_rightside_up = {
82 .orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
85 static const struct drm_dmi_panel_orientation_data lcd800x1280_rightside_up = {
88 .orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
91 static const struct dmi_system_id orientation_data[] = {
92 { /* Acer One 10 (S1003) */
94 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Acer"),
95 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "One S1003"),
97 .driver_data = (void *)&lcd800x1280_rightside_up,
98 }, { /* Asus T100HA */
100 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
101 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "T100HAN"),
103 .driver_data = (void *)&asus_t100ha,
104 }, { /* Asus T101HA */
106 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
107 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "T101HA"),
109 .driver_data = (void *)&lcd800x1280_rightside_up,
110 }, { /* Asus T103HAF */
112 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
113 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "T103HAF"),
115 .driver_data = (void *)&lcd800x1280_rightside_up,
116 }, { /* GPD MicroPC (generic strings, also match on bios date) */
118 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Default string"),
119 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"),
120 DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Default string"),
121 DMI_EXACT_MATCH(DMI_BOARD_NAME, "Default string"),
123 .driver_data = (void *)&gpd_micropc,
124 }, { /* GPD MicroPC (later BIOS versions with proper DMI strings) */
126 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "GPD"),
127 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "MicroPC"),
129 .driver_data = (void *)&lcd720x1280_rightside_up,
131 * GPD Pocket, note that the the DMI data is less generic then
132 * it seems, devices with a board-vendor of "AMI Corporation"
133 * are quite rare, as are devices which have both board- *and*
134 * product-id set to "Default String"
137 DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
138 DMI_EXACT_MATCH(DMI_BOARD_NAME, "Default string"),
139 DMI_EXACT_MATCH(DMI_BOARD_SERIAL, "Default string"),
140 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"),
142 .driver_data = (void *)&gpd_pocket,
143 }, { /* GPD Pocket 2 (generic strings, also match on bios date) */
145 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Default string"),
146 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"),
147 DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Default string"),
148 DMI_EXACT_MATCH(DMI_BOARD_NAME, "Default string"),
150 .driver_data = (void *)&gpd_pocket2,
151 }, { /* GPD Win (same note on DMI match as GPD Pocket) */
153 DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
154 DMI_EXACT_MATCH(DMI_BOARD_NAME, "Default string"),
155 DMI_EXACT_MATCH(DMI_BOARD_SERIAL, "Default string"),
156 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"),
158 .driver_data = (void *)&gpd_win,
159 }, { /* I.T.Works TW891 */
161 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "To be filled by O.E.M."),
162 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "TW891"),
163 DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "To be filled by O.E.M."),
164 DMI_EXACT_MATCH(DMI_BOARD_NAME, "TW891"),
166 .driver_data = (void *)&itworks_tw891,
168 * Lenovo Ideapad Miix 310 laptop, only some production batches
169 * have a portrait screen, the resolution checks makes the quirk
170 * apply only to those batches.
173 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "LENOVO"),
174 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "80SG"),
175 DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "MIIX 310-10ICR"),
177 .driver_data = (void *)&lcd800x1280_rightside_up,
178 }, { /* Lenovo Ideapad Miix 320 */
180 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "LENOVO"),
181 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "80XF"),
182 DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "Lenovo MIIX 320-10ICR"),
184 .driver_data = (void *)&lcd800x1280_rightside_up,
185 }, { /* VIOS LTH17 */
187 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "VIOS"),
188 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "LTH17"),
190 .driver_data = (void *)&lcd800x1280_rightside_up,
196 * drm_get_panel_orientation_quirk - Check for panel orientation quirks
197 * @width: width in pixels of the panel
198 * @height: height in pixels of the panel
200 * This function checks for platform specific (e.g. DMI based) quirks
201 * providing info on panel_orientation for systems where this cannot be
202 * probed from the hard-/firm-ware. To avoid false-positive this function
203 * takes the panel resolution as argument and checks that against the
204 * resolution expected by the quirk-table entry.
206 * Note this function is also used outside of the drm-subsys, by for example
207 * the efifb code. Because of this this function gets compiled into its own
208 * kernel-module when built as a module.
211 * A DRM_MODE_PANEL_ORIENTATION_* value if there is a quirk for this system,
212 * or DRM_MODE_PANEL_ORIENTATION_UNKNOWN if there is no quirk.
214 int drm_get_panel_orientation_quirk(int width, int height)
216 const struct dmi_system_id *match;
217 const struct drm_dmi_panel_orientation_data *data;
218 const char *bios_date;
221 for (match = dmi_first_match(orientation_data);
223 match = dmi_first_match(match + 1)) {
224 data = match->driver_data;
226 if (data->width != width ||
227 data->height != height)
230 if (!data->bios_dates)
231 return data->orientation;
233 bios_date = dmi_get_system_info(DMI_BIOS_DATE);
237 i = match_string(data->bios_dates, -1, bios_date);
239 return data->orientation;
242 return DRM_MODE_PANEL_ORIENTATION_UNKNOWN;
244 EXPORT_SYMBOL(drm_get_panel_orientation_quirk);
248 /* There are no quirks for non x86 devices yet */
249 int drm_get_panel_orientation_quirk(int width, int height)
251 return DRM_MODE_PANEL_ORIENTATION_UNKNOWN;
253 EXPORT_SYMBOL(drm_get_panel_orientation_quirk);
257 MODULE_LICENSE("Dual MIT/GPL");