drm/i915: Track pfit enable state separately from size
authorChris Wilson <chris@chris-wilson.co.uk>
Tue, 27 Aug 2013 16:04:17 +0000 (17:04 +0100)
committerDaniel Vetter <daniel.vetter@ffwll.ch>
Sun, 8 Sep 2013 19:59:13 +0000 (21:59 +0200)
commitfd4daa9cea025ddf8623db289e79d264e9fa66f6
tree0c97b55970bc964b16e3d32327e513ce6249f9f3
parent6e1b4fdad5157bb9e88777d525704aba24389bee
drm/i915: Track pfit enable state separately from size

Detangle the additional state of whether or not the hw has the pfit
enabled from whether it has zero size. This allows us to cleanly
distinguish in the code when we expect the pfit to be enabled (for
Haswell pc8), and when the BIOS is confused and needs sanitizing.

Reported-by: shui yanwei <yangweix.shui@intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=68251
Tested-by: shui yanwei <yangweix.shui@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
drivers/gpu/drm/i915/intel_ddi.c
drivers/gpu/drm/i915/intel_display.c
drivers/gpu/drm/i915/intel_drv.h
drivers/gpu/drm/i915/intel_panel.c
drivers/gpu/drm/i915/intel_pm.c