amdgpu_tf_to_dc_tf
tf = amdgpu_tf_to_dc_tf(crtc->regamma_tf);
dc_plane_state->in_transfer_func.tf = amdgpu_tf_to_dc_tf(tf);
amdgpu_tf_to_dc_tf(shaper_tf),
amdgpu_tf_to_dc_tf(blend_tf),