From: Dave Airlie airlied@redhat.com
This property will be used by the MST code to provide userspace with a path to parse so it can recognise connectors around hotplugs.
Signed-off-by: Dave Airlie airlied@redhat.com --- drivers/gpu/drm/drm_crtc.c | 26 ++++++++++++++++++++++++++ include/drm/drm_crtc.h | 5 +++++ 2 files changed, 31 insertions(+)
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c index 8bf87a6..06b9255 100644 --- a/drivers/gpu/drm/drm_crtc.c +++ b/drivers/gpu/drm/drm_crtc.c @@ -1165,6 +1165,7 @@ static int drm_mode_create_standard_connector_properties(struct drm_device *dev) { struct drm_property *edid; struct drm_property *dpms; + struct drm_property *dev_path;
/* * Standard properties (apply to all connectors) @@ -1179,6 +1180,12 @@ static int drm_mode_create_standard_connector_properties(struct drm_device *dev) ARRAY_SIZE(drm_dpms_enum_list)); dev->mode_config.dpms_property = dpms;
+ dev_path = drm_property_create(dev, + DRM_MODE_PROP_BLOB | + DRM_MODE_PROP_IMMUTABLE, + "PATH", 0); + dev->mode_config.path_property = dev_path; + return 0; }
@@ -3637,6 +3644,25 @@ done: return ret; }
+int drm_mode_connector_set_path_property(struct drm_connector *connector, + char *path) +{ + struct drm_device *dev = connector->dev; + int ret, size; + size = strlen(path) + 1; + + connector->path_blob_ptr = drm_property_create_blob(connector->dev, + size, path); + if (!connector->path_blob_ptr) + return -EINVAL; + + ret = drm_object_property_set_value(&connector->base, + dev->mode_config.path_property, + connector->path_blob_ptr->base.id); + return ret; +} +EXPORT_SYMBOL(drm_mode_connector_set_path_property); + /** * drm_mode_connector_update_edid_property - update the edid property of a connector * @connector: drm connector diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h index 55bc523..e33959b 100644 --- a/include/drm/drm_crtc.h +++ b/include/drm/drm_crtc.h @@ -500,6 +500,8 @@ 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 */ @@ -774,6 +776,7 @@ 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 */ @@ -926,6 +929,8 @@ 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); extern int drm_object_property_set_value(struct drm_mode_object *obj,