Missing function implementation was leading to EINVAL
in UMD thus not adding MST connector to X topology
and hence not getting set mode for it.
Signed-off-by: Andrey Grodzovsky <Andrey.Grodzovsky@amd.com>
Reviewed-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
        .reset = amdgpu_dm_connector_funcs_reset,
        .atomic_duplicate_state = amdgpu_dm_connector_atomic_duplicate_state,
        .atomic_destroy_state = drm_atomic_helper_connector_destroy_state,
-       .atomic_set_property = amdgpu_dm_connector_atomic_set_property
+       .atomic_set_property = amdgpu_dm_connector_atomic_set_property,
+       .atomic_get_property = amdgpu_dm_connector_atomic_get_property
 };
 
 static int dm_dp_mst_get_modes(struct drm_connector *connector)