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Commit 11dec6a2 authored by Imre Deak's avatar Imre Deak Committed by Jani Nikula
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drm/i915: Unlock PPS registers after GPU reset



Reapply the PPS register unlock workaround after GPU reset on platforms
where the reset clobbers the display HW state. This at least gets rid of
the related WARN during LVDS encoder enabling on PNV.

Fixes: ed6143b8 ("drm/i915/lvds: Restore initial HW state during encoder enabling")
Reported-by: default avatarVille Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: default avatarImre Deak <imre.deak@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1473847453-4771-1-git-send-email-imre.deak@intel.com


Reviewed-by: default avatarVille Syrjälä <ville.syrjala@linux.intel.com>
(cherry picked from commit 51f59205)
Signed-off-by: default avatarJani Nikula <jani.nikula@intel.com>
parent 915b4179
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