drm/amd/display: Do not program front-end twice

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The sequence of front-end > back-end > front-end programming will
program the front-end more than once. Add a mode_changed flag, and use
it to determine whether the front-end should be programmed before, or
after back-end.

Signed-off-by: Leo (Sunpeng) Li <sunpeng.li@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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Leo (Sunpeng) Li 2017-11-10 16:12:08 -05:00 • committed by Alex Deucher

parent 000b59ea9f

commit 27b3f4fc91

3 changed files with 32 additions and 3 deletions

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20

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c

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12

drivers/gpu/drm/amd/display/dc/core/dc.c

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3

drivers/gpu/drm/amd/display/dc/dc_stream.h

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