ADPA_VSYNC_ACTIVE_HIGH  351 drivers/gpu/drm/gma500/psb_intel_reg.h #define ADPA_VSYNC_ACTIVE_HIGH		(1 << 4)
ADPA_VSYNC_ACTIVE_HIGH 4378 drivers/gpu/drm/i915/i915_reg.h #define   ADPA_VSYNC_ACTIVE_HIGH (1 << 4)