drm: Introduce "Virtual" connectors and encoders

This will allow us to attach various properties specific to virtual
monitors in the future.

Note that we don't export an EDID property for "Virtual" connectors.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 6 insertions, 2 deletions

diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index fe738f05309b..f3ef654fd268 100644
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -162,6 +162,7 @@ static struct drm_conn_prop_enum_list drm_connector_enum_list[] =
         { DRM_MODE_CONNECTOR_HDMIB, "HDMI-B", 0 },
         { DRM_MODE_CONNECTOR_TV, "TV", 0 },
         { DRM_MODE_CONNECTOR_eDP, "eDP", 0 },
+        { DRM_MODE_CONNECTOR_VIRTUAL, "Virtual", 0},
 };
 
 static struct drm_prop_enum_list drm_encoder_enum_list[] =
@@ -170,6 +171,7 @@ static struct drm_prop_enum_list drm_encoder_enum_list[] =
         { DRM_MODE_ENCODER_TMDS, "TMDS" },
         { DRM_MODE_ENCODER_LVDS, "LVDS" },
         { DRM_MODE_ENCODER_TVDAC, "TV" },
+        { DRM_MODE_ENCODER_VIRTUAL, "Virtual" },
 };
 
 char *drm_get_encoder_name(struct drm_encoder *encoder)
@@ -463,8 +465,10 @@ void drm_connector_init(struct drm_device *dev,
         list_add_tail(&connector->head, &dev->mode_config.connector_list);
         dev->mode_config.num_connector++;
 
-        drm_connector_attach_property(connector,
-                                      dev->mode_config.edid_property, 0);
+        if (connector_type != DRM_MODE_CONNECTOR_VIRTUAL)
+                drm_connector_attach_property(connector,
+                                              dev->mode_config.edid_property,
+                                              0);
 
         drm_connector_attach_property(connector,
                                       dev->mode_config.dpms_property, 0);