drm/amd/display: take dpms_off into account for edp turn off logic

[why]
Previously we incorrectly skipped backlight control when stream is
present but dpms_off = true. This causes backlight to remain on in
the we boot up or resume into a external display only configuration
where VBIOS posted on the eDP.

[How]
Add dpms_off into the condition for edp need to turn off.

Signed-off-by: Eric Yang <[email protected]>
Reviewed-by: Yongqiang Sun <[email protected]>
Acked-by: Leo Li <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>

0 files changed, 0 insertions, 0 deletions