drm/i915: use calculated state for vblank evasion
drm/i915: use calculated state for vblank evasion

crtc->active will be gone eventually, and this check should be just as good.

Signed-off-by: Maarten Lankhorst <743c2818a341d71b99ed2b566f9f80c2fc288f93@linux.intel.com>
Reviewed-by: Matt Roper <f1605a76cb9f6387d99228a0a9260318379b62de@intel.com>
Signed-off-by: Jani Nikula <ba783f3beccaedfda693f41a15407d612a629408@intel.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs