Use the DisplayID 2.0 primary use case information to deduce whether
this is a head-mounted display, and should not be used for desktop.
Cc: Iaroslav Boliukin <iam@xxxxxxx>
Cc: Dmitry Osipenko <dmitry.osipenko@xxxxxxxxxxxxx>
Signed-off-by: Jani Nikula <jani.nikula@xxxxxxxxx>
---
drivers/gpu/drm/drm_edid.c | 25 +++++++++++++++++++++++++
1 file changed, 25 insertions(+)
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index 3d0a4da661bc..03ad53a1ba82 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -6433,6 +6433,29 @@ static void drm_reset_display_info(struct drm_connector *connector)
info->quirks = 0;
}
+static void update_displayid_info(struct drm_connector *connector,
+ const struct drm_edid *drm_edid)
+{
+ struct drm_display_info *info = &connector->display_info;
+ const struct displayid_block *block;
+ struct displayid_iter iter;
+
+ displayid_iter_edid_begin(drm_edid, &iter);
+ displayid_iter_for_each(block, &iter) {
+ if (displayid_version(&iter) == DISPLAY_ID_STRUCTURE_VER_20 &&
+ (displayid_primary_use(&iter) == PRIMARY_USE_HEAD_MOUNTED_VR ||
+ displayid_primary_use(&iter) == PRIMARY_USE_HEAD_MOUNTED_AR))
+ info->non_desktop = true;
+
+ /*
+ * We're only interested in the base section here, no need to
+ * iterate further.
+ */
+ break;
+ }
+ displayid_iter_end(&iter);
+}
+
static void update_display_info(struct drm_connector *connector,
const struct drm_edid *drm_edid)
{
@@ -6463,6 +6486,8 @@ static void update_display_info(struct drm_connector *connector,
info->color_formats |= DRM_COLOR_FORMAT_RGB444;
drm_parse_cea_ext(connector, drm_edid);
+ update_displayid_info(connector, drm_edid);
+
/*
* Digital sink with "DFP 1.x compliant TMDS" according to EDID 1.3?
*
--
2.34.1
