drm/amd/display: Keep eDP stream enabled during boot.

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This path fixed specific eDP panel cold boot black screen
due to unnecessary enable link.
Change:
In case of boot up with eDP, if OS is going to set mode
on eDP, keep eDP light up, do not disable and reset corresponding
HW.
This change may affect dce asics and S3/S4 Resume with multi-monitor.

Signed-off-by: Yongqiang Sun <yongqiang.sun@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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This commit is contained in:

Yongqiang Sun 2018-02-02 17:35:00 -05:00 • committed by Alex Deucher

parent 75023034c0

commit 4cac1e6d2f

3 changed files with 34 additions and 24 deletions

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11

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

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2

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

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45

drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c

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