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 acer_s1003 = {
36 .orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
39 static const struct drm_dmi_panel_orientation_data asus_t100ha = {
42 .orientation = DRM_MODE_PANEL_ORIENTATION_LEFT_UP,
45 static const struct drm_dmi_panel_orientation_data gpd_micropc = {
48 .bios_dates = (const char * const []){ "04/26/2019",
50 .orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
53 static const struct drm_dmi_panel_orientation_data gpd_pocket = {
56 .bios_dates = (const char * const []){ "05/26/2017", "06/28/2017",
57 "07/05/2017", "08/07/2017", NULL },
58 .orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
61 static const struct drm_dmi_panel_orientation_data gpd_pocket2 = {
64 .bios_dates = (const char * const []){ "06/28/2018", "08/28/2018",
66 .orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
69 static const struct drm_dmi_panel_orientation_data gpd_win = {
72 .bios_dates = (const char * const []){
73 "10/25/2016", "11/18/2016", "12/23/2016", "12/26/2016",
74 "02/21/2017", "03/20/2017", "05/25/2017", NULL },
75 .orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
78 static const struct drm_dmi_panel_orientation_data gpd_win2 = {
81 .bios_dates = (const char * const []){
82 "12/07/2017", "05/24/2018", "06/29/2018", NULL },
83 .orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
86 static const struct drm_dmi_panel_orientation_data itworks_tw891 = {
89 .bios_dates = (const char * const []){ "10/16/2015", NULL },
90 .orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
93 static const struct drm_dmi_panel_orientation_data lcd800x1280_rightside_up = {
96 .orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
99 static const struct drm_dmi_panel_orientation_data lcd1200x1920_rightside_up = {
102 .orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
105 static const struct dmi_system_id orientation_data[] = {
106 { /* Acer One 10 (S1003) */
108 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Acer"),
109 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "One S1003"),
111 .driver_data = (void *)&acer_s1003,
112 }, { /* Asus T100HA */
114 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
115 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "T100HAN"),
117 .driver_data = (void *)&asus_t100ha,
118 }, { /* GPD MicroPC (generic strings, also match on bios date) */
120 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Default string"),
121 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"),
122 DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Default string"),
123 DMI_EXACT_MATCH(DMI_BOARD_NAME, "Default string"),
125 .driver_data = (void *)&gpd_micropc,
127 * GPD Pocket, note that the the DMI data is less generic then
128 * it seems, devices with a board-vendor of "AMI Corporation"
129 * are quite rare, as are devices which have both board- *and*
130 * product-id set to "Default String"
133 DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
134 DMI_EXACT_MATCH(DMI_BOARD_NAME, "Default string"),
135 DMI_EXACT_MATCH(DMI_BOARD_SERIAL, "Default string"),
136 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"),
138 .driver_data = (void *)&gpd_pocket,
139 }, { /* GPD Pocket 2 (generic strings, also match on bios date) */
141 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Default string"),
142 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"),
143 DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Default string"),
144 DMI_EXACT_MATCH(DMI_BOARD_NAME, "Default string"),
146 .driver_data = (void *)&gpd_pocket2,
147 }, { /* GPD Win (same note on DMI match as GPD Pocket) */
149 DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
150 DMI_EXACT_MATCH(DMI_BOARD_NAME, "Default string"),
151 DMI_EXACT_MATCH(DMI_BOARD_SERIAL, "Default string"),
152 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"),
154 .driver_data = (void *)&gpd_win,
155 }, { /* GPD Win 2 (too generic strings, also match on bios date) */
157 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Default string"),
158 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"),
159 DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Default string"),
160 DMI_EXACT_MATCH(DMI_BOARD_NAME, "Default string"),
162 .driver_data = (void *)&gpd_win2,
163 }, { /* I.T.Works TW891 */
165 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "To be filled by O.E.M."),
166 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "TW891"),
167 DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "To be filled by O.E.M."),
168 DMI_EXACT_MATCH(DMI_BOARD_NAME, "TW891"),
170 .driver_data = (void *)&itworks_tw891,
172 * Lenovo Ideapad Miix 310 laptop, only some production batches
173 * have a portrait screen, the resolution checks makes the quirk
174 * apply only to those batches.
177 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "LENOVO"),
178 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "80SG"),
179 DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "MIIX 310-10ICR"),
181 .driver_data = (void *)&lcd800x1280_rightside_up,
182 }, { /* Lenovo Ideapad Miix 320 */
184 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "LENOVO"),
185 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "80XF"),
186 DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "Lenovo MIIX 320-10ICR"),
188 .driver_data = (void *)&lcd800x1280_rightside_up,
189 }, { /* Lenovo Ideapad D330 */
191 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "LENOVO"),
192 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "81H3"),
193 DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "Lenovo ideapad D330-10IGM"),
195 .driver_data = (void *)&lcd1200x1920_rightside_up,
196 }, { /* VIOS LTH17 */
198 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "VIOS"),
199 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "LTH17"),
201 .driver_data = (void *)&lcd800x1280_rightside_up,
207 * drm_get_panel_orientation_quirk - Check for panel orientation quirks
208 * @width: width in pixels of the panel
209 * @height: height in pixels of the panel
211 * This function checks for platform specific (e.g. DMI based) quirks
212 * providing info on panel_orientation for systems where this cannot be
213 * probed from the hard-/firm-ware. To avoid false-positive this function
214 * takes the panel resolution as argument and checks that against the
215 * resolution expected by the quirk-table entry.
217 * Note this function is also used outside of the drm-subsys, by for example
218 * the efifb code. Because of this this function gets compiled into its own
219 * kernel-module when built as a module.
222 * A DRM_MODE_PANEL_ORIENTATION_* value if there is a quirk for this system,
223 * or DRM_MODE_PANEL_ORIENTATION_UNKNOWN if there is no quirk.
225 int drm_get_panel_orientation_quirk(int width, int height)
227 const struct dmi_system_id *match;
228 const struct drm_dmi_panel_orientation_data *data;
229 const char *bios_date;
232 for (match = dmi_first_match(orientation_data);
234 match = dmi_first_match(match + 1)) {
235 data = match->driver_data;
237 if (data->width != width ||
238 data->height != height)
241 if (!data->bios_dates)
242 return data->orientation;
244 bios_date = dmi_get_system_info(DMI_BIOS_DATE);
248 i = match_string(data->bios_dates, -1, bios_date);
250 return data->orientation;
253 return DRM_MODE_PANEL_ORIENTATION_UNKNOWN;
255 EXPORT_SYMBOL(drm_get_panel_orientation_quirk);
259 /* There are no quirks for non x86 devices yet */
260 int drm_get_panel_orientation_quirk(int width, int height)
262 return DRM_MODE_PANEL_ORIENTATION_UNKNOWN;
264 EXPORT_SYMBOL(drm_get_panel_orientation_quirk);
268 MODULE_LICENSE("Dual MIT/GPL");