drm/amd/display: turn off eDP lcdvdd and backlight if not required

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[why]
A+N configuration, eDP on A-APU is off, extended display active.
Resume from s4, eDP's backlight is still on.

[how]
Turn off inactive eDP backlight and lcdvdd.

Reviewed-by: Charlene Liu <charlene.liu@amd.com>
Reviewed-by: Aric Cyr <aric.cyr@amd.com>
Signed-off-by: Charlene Liu <Charlene.Liu@amd.com>
Signed-off-by: Jing Zhou <Jing.Zhou@amd.com>
Signed-off-by: Roman Li <roman.li@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Charlene Liu 2025-03-26 17:11:35 +08:00 • committed by Alex Deucher

parent 32be4e39f4

commit 0d93e82186

2 changed files with 4 additions and 2 deletions

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4

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

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2

drivers/gpu/drm/amd/display/dc/link/protocols/link_edp_panel_control.c

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