]> git.proxmox.com Git - mirror_ubuntu-kernels.git/commit
drm/i915/ibx: Ensure the HW is powered during PLL HW readout
authorImre Deak <imre.deak@intel.com>
Fri, 12 Feb 2016 16:55:12 +0000 (18:55 +0200)
committerImre Deak <imre.deak@intel.com>
Wed, 17 Feb 2016 14:08:27 +0000 (16:08 +0200)
commit12fda3876d08519bdf6f0acc70dd35754b422ed5
treec6ec85896c411107821a91d6f5d738f8e4fd23d3
parent1729050eb4bbc192e54069e82069f2811313c1dd
drm/i915/ibx: Ensure the HW is powered during PLL 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 <imre.deak@intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1455296121-4742-4-git-send-email-imre.deak@intel.com
drivers/gpu/drm/i915/intel_display.c