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4fc6f65965
It is to fix: MST display failed to resume from S3 Need to properly setup MST encoder cbs. Otherwise drm_device encoder doesn't register its own cbs, leading to NULL encoder->funcs in drm_atomic_helper_resume(). Signed-off-by: Jerry (Fangzhi) Zuo <Jerry.Zuo@amd.com> Reviewed-by: Roman Li <Roman.Li@amd.com> Acked-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>