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authorImre Deak <[email protected]>2016-02-12 18:55:11 +0200
committerJani Nikula <[email protected]>2016-02-22 17:44:35 +0200
commit9fb84d5a9299ac678dedc56487f394e5f68b91cb (patch)
tree42c0da50fc66f42ac03e4839d4ecdb679436be02 /lib/mpi/mpiutil.c
parent5af9a454769bb5528ba1e5268e5649414ae832bd (diff)
drm/i915: Ensure the HW is powered during display pipe HW 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 <[email protected]> Revieved-by: Mika Kuoppala <[email protected]> Link: http://patchwork.freedesktop.org/patch/msgid/[email protected] (cherry picked from commit 1729050eb4bbc192e54069e82069f2811313c1dd) Signed-off-by: Jani Nikula <[email protected]>
Diffstat (limited to 'lib/mpi/mpiutil.c')
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