drm: add a path blob property

This property will be used by the MST code to provide userspace
with a path to parse so it can recognise connectors around hotplugs.

Reviewed-by: Todd Previte <tprevite@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index eb0f6f36385e..4da62072701c 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -524,6 +524,8 @@ struct drm_connector {
         struct drm_property_blob *edid_blob_ptr;
         struct drm_object_properties properties;
 
+        struct drm_property_blob *path_blob_ptr;
+
         uint8_t polled; /* DRM_CONNECTOR_POLL_* */
 
         /* requested DPMS state */
@@ -803,6 +805,7 @@ struct drm_mode_config {
         struct list_head property_blob_list;
         struct drm_property *edid_property;
         struct drm_property *dpms_property;
+        struct drm_property *path_property;
         struct drm_property *plane_type_property;
 
         /* DVI-I properties */
@@ -952,6 +955,8 @@ extern void drm_mode_config_init(struct drm_device *dev);
 extern void drm_mode_config_reset(struct drm_device *dev);
 extern void drm_mode_config_cleanup(struct drm_device *dev);
 
+extern int drm_mode_connector_set_path_property(struct drm_connector *connector,
+                                                char *path);
 extern int drm_mode_connector_update_edid_property(struct drm_connector *connector,
                                                 struct edid *edid);