diff options
| author | Chenyu Chen <chen-yu.chen@amd.com> | 2026-05-26 10:59:50 +0800 |
|---|---|---|
| committer | Mario Limonciello <superm1@kernel.org> | 2026-06-29 21:16:36 -0500 |
| commit | 1258f9c9ff1dba0d081e27a5f85597a916249988 (patch) | |
| tree | 936d821da645374ba3813e50821693d470a07922 /include/drm | |
| parent | 3474028a606c67119712c90520199e0ac484c6e4 (diff) | |
| download | linux-next-1258f9c9ff1dba0d081e27a5f85597a916249988.tar.gz linux-next-1258f9c9ff1dba0d081e27a5f85597a916249988.zip | |
drm/edid: parse panel type from DisplayID 2.x Display Parameters
Parse the Display Parameters Data Block (tag 0x21) defined in
DisplayID v2.1a Section 4.2.6. Extract the Display Device Technology
field from the color depth and device technology byte, which indicates
whether the panel uses LCD or OLED technology.
Add a panel_type field to struct drm_display_info and populate it
during DisplayID iteration so downstream drivers can use it for
panel-type-dependent behavior. Add DRM_MODE_PANEL_TYPE_LCD to the UAPI
panel type property alongside the existing OLED value.
Assisted-by: Copilot:Claude-Opus-4.6
Signed-off-by: Chenyu Chen <chen-yu.chen@amd.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Mario Limonciello (AMD) <superm1@kernel.org>
Link: https://patch.msgid.link/20260526030254.1460480-3-chen-yu.chen@amd.com
Signed-off-by: Mario Limonciello <superm1@kernel.org>
Diffstat (limited to 'include/drm')
| -rw-r--r-- | include/drm/drm_connector.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h index 4317166562cf..0cb72aa081d9 100644 --- a/include/drm/drm_connector.h +++ b/include/drm/drm_connector.h @@ -989,6 +989,12 @@ struct drm_display_info { * @amd_vsdb: AMD-specific VSDB information. */ struct drm_amd_vsdb_info amd_vsdb; + + /** + * @panel_type: Panel type from DisplayID Display Parameters + * Data Block (tag 0x21). Uses DRM_MODE_PANEL_TYPE_* constants. + */ + u8 panel_type; }; int drm_display_info_set_bus_formats(struct drm_display_info *info, |