drm/amd/display: Clear dmps off for eDP when resume.
authorYongqiang Sun <yongqiang.sun@amd.com>
Wed, 14 Feb 2018 22:12:39 +0000 (17:12 -0500)
committerAlex Deucher <alexander.deucher@amd.com>
Mon, 5 Mar 2018 20:33:43 +0000 (15:33 -0500)
commitf03628232fe93ce7af18079ce69c2dfd4c95d70f
tree6e1e61ec36de04554d1679073fb7dd36dffa6abe
parentea7ea2a8cac1ae7224022b55dcafd51321474ad7
drm/amd/display: Clear dmps off for eDP when resume.

This patch fixed secondary screen only S4 resume, eDP is unintentionally
light up due to incorrect dpms off flag.

When entering S4, dpms off flags are set to true via
set power state. During resume, eDP is light up by vbios, so the flags
should be changed to false to match the real state.
By change the flag properly, eDP is able to be turned off properly as per
OS request.

This change may affect S3/S4 Shut down resume IOIC, need to verify
those cases.

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>
drivers/gpu/drm/amd/display/dc/core/dc_link.c
drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c