Full DRRS Support for Linux.
drm/i915: Fix up some DRRS type checks
drm/i915: Constify intel_drrs_init() args
drm/i915: Pimp DRRS debugs
drm/i915: Read DRRS MSA timing delay from VBT
drm/i915: Program MSA timing delay on ilk/snb/ivb
drm/i915: Polish drrs type enum
drm/i915: Clean up DRRS refresh rate enum
drm/i915: Rename PIPECONF refresh select bits
drm/i915: Stash DRRS state under intel_crtc
drm/i915: Move DRRS enable/disable higher up
drm/i915: Enable eDP DRRS on ilk/snb port A
drm/i915: Introduce intel_panel_{fixed,downclock}_mode()
drm/i915: Implement static DRRS