drm/amd/display: do not set_mpc_tree if tree is already setup

Signed-off-by: Tony Cheng <tony.cheng@amd.com>
Reviewed-by: Yongqiang Sun <yongqiang.sun@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Tony Cheng 2017-05-02 17:01:10 -04:00 • committed by Alex Deucher
commit cbfd33fd97