PIPEA_DP_LINK_N_MASK 1521 drivers/gpu/drm/gma500/psb_intel_reg.h #define   PIPEA_DP_LINK_N_MASK			(0xffffff)
PIPEA_DP_LINK_N_MASK 5614 drivers/gpu/drm/i915/i915_reg.h #define   PIPEA_DP_LINK_N_MASK			(0xffffff)