drm/amd: Revert "drm/amd/display: keep eDP Vdd on when eDP stream is already enabled"
authorMario Limonciello <mario.limonciello@amd.com>
Wed, 15 Jun 2022 22:30:05 +0000 (17:30 -0500)
committerAlex Deucher <alexander.deucher@amd.com>
Wed, 22 Jun 2022 21:11:28 +0000 (17:11 -0400)
commit937e24b7f5595566a64e0f856ebab9147f2e4d1b
tree8b50288485cb5cb6cb11fe457de3d85a2d27b106
parentf15345a377c6ea9c7cc74f079616af8856aff37f
drm/amd: Revert "drm/amd/display: keep eDP Vdd on when eDP stream is already enabled"

A variety of Lenovo machines with Rembrandt APUs and OLED panels have
stopped showing the display at login.  This behavior clears up after
leaving it idle and moving the mouse or touching keyboard.

It was bisected to be caused by commit 559e2655220d ("drm/amd/display:
keep eDP Vdd on when eDP stream is already enabled").  Revert this commit
to fix the issue.

Link: https://gitlab.freedesktop.org/drm/amd/-/issues/2047
Reported-by: Aaron Ma <aaron.ma@canonical.com>
Fixes: 559e2655220d ("drm/amd/display: keep eDP Vdd on when eDP stream is already enabled")
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Tested-by: Mark Pearson <markpearson@lenovo.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c