drm: add connector info/property for non-desktop displays [v2]
This adds the infrastructure needed to quirk displays
using edid and to mark them a non-desktop.
A non-desktop display is one which shouldn't normally be included
as a part of a desktop environment.
This is meant to cover head mounted devices like HTC Vive.
v2: Change description from non-standard to non-desktop, add docs
Reviewed-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
fixup docs
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index 00ddabf..1e24d5d9 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -82,6 +82,8 @@
#define EDID_QUIRK_FORCE_6BPC (1 << 10)
/* Force 10bpc */
#define EDID_QUIRK_FORCE_10BPC (1 << 11)
+/* Non desktop display (i.e. HMD) */
+#define EDID_QUIRK_NON_DESKTOP (1 << 12)
struct detailed_mode_closure {
struct drm_connector *connector;
@@ -4393,7 +4395,7 @@ static void drm_parse_cea_ext(struct drm_connector *connector,
}
static void drm_add_display_info(struct drm_connector *connector,
- struct edid *edid)
+ struct edid *edid, u32 quirks)
{
struct drm_display_info *info = &connector->display_info;
@@ -4407,6 +4409,8 @@ static void drm_add_display_info(struct drm_connector *connector,
info->max_tmds_clock = 0;
info->dvi_dual = false;
+ info->non_desktop = !!(quirks & EDID_QUIRK_NON_DESKTOP);
+
if (edid->revision < 3)
return;
@@ -4627,7 +4631,7 @@ int drm_add_edid_modes(struct drm_connector *connector, struct edid *edid)
* To avoid multiple parsing of same block, lets parse that map
* from sink info, before parsing CEA modes.
*/
- drm_add_display_info(connector, edid);
+ drm_add_display_info(connector, edid, quirks);
/*
* EDID spec says modes should be preferred in this order: