SDVO_CLOCK_OUTPUT_INVERT  421 drivers/gpu/drm/gma500/psb_intel_reg.h #define SDVO_CLOCK_OUTPUT_INVERT	(1 << 18)
SDVO_CLOCK_OUTPUT_INVERT 4525 drivers/gpu/drm/i915/i915_reg.h #define   SDVO_CLOCK_OUTPUT_INVERT		(1 << 18)