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[WHY & HOW]
Enabling SCE after boot up will cause color distortion.
Reviewed-by: Ovidiu Bunea <ovidiu.bunea@amd.com>
Acked-by: Hersen Wu <hersenxs.wu@amd.com>
Signed-off-by: Yihan Zhu <yihan.zhu@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>