FW_BLC_SELF_EN    599 drivers/gpu/drm/gma500/psb_intel_reg.h #define FW_BLC_SELF_EN          (1<<15)
FW_BLC_SELF_EN   2758 drivers/gpu/drm/i915/i915_reg.h #define   FW_BLC_SELF_EN           (1 << 15) /* 945 only */