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| author |   Imre Deak <imre.deak@intel.com> | 2016-02-12 18:55:21 +0200 |
|---|---|---|
| committer |   Jani Nikula <jani.nikula@intel.com> | 2016-02-22 17:44:40 +0200 |
| commit | 380bdff2d05b498227c80caedd125e8cfcdba00d (patch) | |
| tree | 022d9c34fe50bdbc815c22494c025b34b16aa6d5 /certs | |
| parent | drm/i915/hdmi: Ensure the HW is powered during HW state readout (diff) | |
| download | linux-dev-380bdff2d05b498227c80caedd125e8cfcdba00d.tar.xz linux-dev-380bdff2d05b498227c80caedd125e8cfcdba00d.zip | |
drm/i915/lvds: 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.
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1455296121-4742-13-git-send-email-imre.deak@intel.com
(cherry picked from commit ecb2448218acf23c401434c26be256147833b221)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Diffstat (limited to 'certs')
0 files changed, 0 insertions, 0 deletions