drm/i915/dp: set sink to power down mode on dp disable
We used to put the local sink and any downstream sinks to power down mode at disable or dpms off using the DPCD SET_POWER register, until this was broken by commit e8cb4558 Author: Daniel Vetter <daniel.vetter@ffwll.ch> Date: Sun Jul 1 13:05:48 2012 +0200 drm/i915/dp: convert to encoder disable/enable Fix it. Signed-off-by: NJani Nikula <jani.nikula@intel.com> Reviewed-by: NTodd Previte <tprevite@gmail.com> Signed-off-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
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