| commit | 1c8fdda1ea947ae8cf994969a1c285acc7089cb9 | [log] [tgz] |
|---|---|---|
| author | Imre Deak <imre.deak@intel.com> | Fri Feb 12 18:55:15 2016 +0200 |
| committer | Imre Deak <imre.deak@intel.com> | Wed Feb 17 16:09:56 2016 +0200 |
| tree | f9e27f072d3b1dbae6462e9e09509bc506af66ec | |
| parent | 4feed0ebfa45879bc422c9a0bfa3cffec82ea60a [diff] |
drm/i915/crt: Ensure the HW is powered during HW state readout 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. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=93439 CC: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Imre Deak <imre.deak@intel.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1455296121-4742-7-git-send-email-imre.deak@intel.com