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authorImre Deak <imre.deak@intel.com>2016-02-12 18:55:13 +0200
committerJani Nikula <jani.nikula@intel.com>2016-02-22 17:44:36 +0200
commitbacd67d6a36c8905258d08ed6ef41346fa01607c (patch)
treee51270cfb114599d4ffeca9355197263f90a0959 /mm/swap_cgroup.c
parent013ef6cfc411bfe4a6009eaa7dabb6531bbb41bb (diff)
drm/i915: Ensure the HW is powered when disabling VGA
The assumption when adding the intel_display_power_is_enabled() checks was that if it returns success the power can't be turned off afterwards during the HW access, which is guaranteed by modeset locks. This isn't always true, so make sure we hold a dedicated reference for the time of the access. Signed-off-by: Imre Deak <imre.deak@intel.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1455296121-4742-5-git-send-email-imre.deak@intel.com (cherry picked from commit 6392f8478e6f119467b1ad06e30e1f078e62efc1) Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Diffstat (limited to 'mm/swap_cgroup.c')
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