drm/amd/display: refactor dc_update_surfaces_for_stream

- reuse existing helper functions
- helper function to make it more obvious which cases we can do optimize programming

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 2017-01-19 23:57:09 -05:00 • committed by Alex Deucher
commit e72f0acd36