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-rw-r--r--include/drm/drm_dp_mst_helper.h12
1 files changed, 11 insertions, 1 deletions
diff --git a/include/drm/drm_dp_mst_helper.h b/include/drm/drm_dp_mst_helper.h
index 20dc705642bd..c87a829b6498 100644
--- a/include/drm/drm_dp_mst_helper.h
+++ b/include/drm/drm_dp_mst_helper.h
@@ -594,6 +594,14 @@ struct drm_dp_mst_topology_mgr {
*/
int max_payloads;
/**
+ * @max_lane_count: maximum number of lanes the GPU can drive.
+ */
+ u8 max_lane_count;
+ /**
+ * @max_link_rate: maximum link rate per lane GPU can output.
+ */
+ u8 max_link_rate;
+ /**
* @conn_base_id: DRM connector ID this mgr is connected to. Only used
* to build the MST connector path value.
*/
@@ -765,7 +773,9 @@ struct drm_dp_mst_topology_mgr {
int drm_dp_mst_topology_mgr_init(struct drm_dp_mst_topology_mgr *mgr,
struct drm_device *dev, struct drm_dp_aux *aux,
int max_dpcd_transaction_bytes,
- int max_payloads, int conn_base_id);
+ int max_payloads,
+ u8 max_lane_count, u8 max_link_rate,
+ int conn_base_id);
void drm_dp_mst_topology_mgr_destroy(struct drm_dp_mst_topology_mgr *mgr);