summaryrefslogtreecommitdiff
path: root/drivers/gpu/drm/drm_connector.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/gpu/drm/drm_connector.c')
-rw-r--r--drivers/gpu/drm/drm_connector.c49
1 files changed, 49 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c
index aa18b1d7d3e4..7bd9d824dd7d 100644
--- a/drivers/gpu/drm/drm_connector.c
+++ b/drivers/gpu/drm/drm_connector.c
@@ -1272,6 +1272,37 @@ int drm_mode_create_scaling_mode_property(struct drm_device *dev)
EXPORT_SYMBOL(drm_mode_create_scaling_mode_property);
/**
+ * drm_connector_attach_vrr_capable_property - creates the
+ * vrr_capable property
+ * @connector: connector to create the vrr_capable property on.
+ *
+ * This is used by atomic drivers to add support for querying
+ * variable refresh rate capability for a connector.
+ *
+ * Returns:
+ * Zero on success, negative errono on failure.
+ */
+int drm_connector_attach_vrr_capable_property(
+ struct drm_connector *connector)
+{
+ struct drm_device *dev = connector->dev;
+ struct drm_property *prop;
+
+ if (!connector->vrr_capable_property) {
+ prop = drm_property_create_bool(dev, DRM_MODE_PROP_IMMUTABLE,
+ "vrr_capable");
+ if (!prop)
+ return -ENOMEM;
+
+ connector->vrr_capable_property = prop;
+ drm_object_attach_property(&connector->base, prop, 0);
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL(drm_connector_attach_vrr_capable_property);
+
+/**
* drm_connector_attach_scaling_mode_property - attach atomic scaling mode property
* @connector: connector to attach scaling mode property on.
* @scaling_mode_mask: or'ed mask of BIT(%DRM_MODE_SCALE_\*).
@@ -1600,6 +1631,24 @@ void drm_connector_set_link_status_property(struct drm_connector *connector,
EXPORT_SYMBOL(drm_connector_set_link_status_property);
/**
+ * drm_connector_set_vrr_capable_property - sets the variable refresh rate
+ * capable property for a connector
+ * @connector: drm connector
+ * @capable: True if the connector is variable refresh rate capable
+ *
+ * Should be used by atomic drivers to update the indicated support for
+ * variable refresh rate over a connector.
+ */
+void drm_connector_set_vrr_capable_property(
+ struct drm_connector *connector, bool capable)
+{
+ drm_object_property_set_value(&connector->base,
+ connector->vrr_capable_property,
+ capable);
+}
+EXPORT_SYMBOL(drm_connector_set_vrr_capable_property);
+
+/**
* drm_connector_init_panel_orientation_property -
* initialize the connecters panel_orientation property
* @connector: connector for which to init the panel-orientation property.