DP_LINK_TRAIN_OFF 1383 drivers/gpu/drm/gma500/psb_intel_reg.h #define   DP_LINK_TRAIN_OFF		(3 << 28)
DP_LINK_TRAIN_OFF 5422 drivers/gpu/drm/i915/i915_reg.h #define   DP_LINK_TRAIN_OFF		(3 << 28)