]> git.karo-electronics.de Git - linux-beck.git/commit
drm/i915/hdmi: Ensure the HW is powered during HW state readout
authorImre Deak <imre.deak@intel.com>
Fri, 12 Feb 2016 16:55:20 +0000 (18:55 +0200)
committerImre Deak <imre.deak@intel.com>
Wed, 17 Feb 2016 14:17:34 +0000 (16:17 +0200)
commit5b0921748c0b1d0362bbfa802dc25a5c23de7e76
tree45e571be54e3805f6562a1e6ee487993a6c95118
parent3f3f42b887fbffc3353e44ef9f32456c19ae4280
drm/i915/hdmi: 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/1455296121-4742-12-git-send-email-imre.deak@intel.com
drivers/gpu/drm/i915/intel_hdmi.c