DP_SCRAMBLING_DISABLE_IRONLAKE 1421 drivers/gpu/drm/gma500/psb_intel_reg.h #define   DP_SCRAMBLING_DISABLE_IRONLAKE	(1 << 7)
DP_SCRAMBLING_DISABLE_IRONLAKE 5475 drivers/gpu/drm/i915/i915_reg.h #define   DP_SCRAMBLING_DISABLE_IRONLAKE	(1 << 7)