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_pocket = {
48 .bios_dates = (const char * const []){ "05/26/2017", "06/28/2017",
49 "07/05/2017", "08/07/2017", NULL },
50 .orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
53 static const struct drm_dmi_panel_orientation_data gpd_win = {
56 .bios_dates = (const char * const []){
57 "10/25/2016", "11/18/2016", "12/23/2016", "12/26/2016",
58 "02/21/2017", "03/20/2017", "05/25/2017", NULL },
59 .orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
62 static const struct drm_dmi_panel_orientation_data gpd_win2 = {
65 .bios_dates = (const char * const []){
66 "12/07/2017", "05/24/2018", "06/29/2018", NULL },
67 .orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
70 static const struct drm_dmi_panel_orientation_data itworks_tw891 = {
73 .bios_dates = (const char * const []){ "10/16/2015", NULL },
74 .orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
77 static const struct drm_dmi_panel_orientation_data lcd800x1280_rightside_up = {
80 .orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
83 static const struct drm_dmi_panel_orientation_data lcd1200x1920_rightside_up = {
86 .orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
89 static const struct dmi_system_id orientation_data[] = {
90 { /* Acer One 10 (S1003) */
92 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Acer"),
93 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "One S1003"),
95 .driver_data = (void *)&acer_s1003,
96 }, { /* Asus T100HA */
98 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
99 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "T100HAN"),
101 .driver_data = (void *)&asus_t100ha,
103 * GPD Pocket, note that the the DMI data is less generic then
104 * it seems, devices with a board-vendor of "AMI Corporation"
105 * are quite rare, as are devices which have both board- *and*
106 * product-id set to "Default String"
109 DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
110 DMI_EXACT_MATCH(DMI_BOARD_NAME, "Default string"),
111 DMI_EXACT_MATCH(DMI_BOARD_SERIAL, "Default string"),
112 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"),
114 .driver_data = (void *)&gpd_pocket,
115 }, { /* GPD Win (same note on DMI match as GPD Pocket) */
117 DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
118 DMI_EXACT_MATCH(DMI_BOARD_NAME, "Default string"),
119 DMI_EXACT_MATCH(DMI_BOARD_SERIAL, "Default string"),
120 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"),
122 .driver_data = (void *)&gpd_win,
123 }, { /* GPD Win 2 (too generic strings, also match on bios date) */
125 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Default string"),
126 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"),
127 DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Default string"),
128 DMI_EXACT_MATCH(DMI_BOARD_NAME, "Default string"),
130 .driver_data = (void *)&gpd_win2,
131 }, { /* I.T.Works TW891 */
133 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "To be filled by O.E.M."),
134 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "TW891"),
135 DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "To be filled by O.E.M."),
136 DMI_EXACT_MATCH(DMI_BOARD_NAME, "TW891"),
138 .driver_data = (void *)&itworks_tw891,
140 * Lenovo Ideapad Miix 310 laptop, only some production batches
141 * have a portrait screen, the resolution checks makes the quirk
142 * apply only to those batches.
145 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "LENOVO"),
146 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "80SG"),
147 DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "MIIX 310-10ICR"),
149 .driver_data = (void *)&lcd800x1280_rightside_up,
150 }, { /* Lenovo Ideapad Miix 320 */
152 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "LENOVO"),
153 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "80XF"),
154 DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "Lenovo MIIX 320-10ICR"),
156 .driver_data = (void *)&lcd800x1280_rightside_up,
157 }, { /* Lenovo Ideapad D330 */
159 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "LENOVO"),
160 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "81H3"),
161 DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "Lenovo ideapad D330-10IGM"),
163 .driver_data = (void *)&lcd1200x1920_rightside_up,
164 }, { /* VIOS LTH17 */
166 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "VIOS"),
167 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "LTH17"),
169 .driver_data = (void *)&lcd800x1280_rightside_up,
175 * drm_get_panel_orientation_quirk - Check for panel orientation quirks
176 * @width: width in pixels of the panel
177 * @height: height in pixels of the panel
179 * This function checks for platform specific (e.g. DMI based) quirks
180 * providing info on panel_orientation for systems where this cannot be
181 * probed from the hard-/firm-ware. To avoid false-positive this function
182 * takes the panel resolution as argument and checks that against the
183 * resolution expected by the quirk-table entry.
185 * Note this function is also used outside of the drm-subsys, by for example
186 * the efifb code. Because of this this function gets compiled into its own
187 * kernel-module when built as a module.
190 * A DRM_MODE_PANEL_ORIENTATION_* value if there is a quirk for this system,
191 * or DRM_MODE_PANEL_ORIENTATION_UNKNOWN if there is no quirk.
193 int drm_get_panel_orientation_quirk(int width, int height)
195 const struct dmi_system_id *match;
196 const struct drm_dmi_panel_orientation_data *data;
197 const char *bios_date;
200 for (match = dmi_first_match(orientation_data);
202 match = dmi_first_match(match + 1)) {
203 data = match->driver_data;
205 if (data->width != width ||
206 data->height != height)
209 if (!data->bios_dates)
210 return data->orientation;
212 bios_date = dmi_get_system_info(DMI_BIOS_DATE);
216 i = match_string(data->bios_dates, -1, bios_date);
218 return data->orientation;
221 return DRM_MODE_PANEL_ORIENTATION_UNKNOWN;
223 EXPORT_SYMBOL(drm_get_panel_orientation_quirk);
227 /* There are no quirks for non x86 devices yet */
228 int drm_get_panel_orientation_quirk(int width, int height)
230 return DRM_MODE_PANEL_ORIENTATION_UNKNOWN;
232 EXPORT_SYMBOL(drm_get_panel_orientation_quirk);
236 MODULE_LICENSE("Dual MIT/GPL");