DEVICE_PORT_DVOA  178 drivers/gpu/drm/gma500/intel_bios.h #define DEVICE_PORT_DVOA	0x00 /* none on 845+ */
DEVICE_PORT_DVOA  274 drivers/gpu/drm/i915/display/intel_vbt_defs.h #define DEVICE_PORT_DVOA	0x00 /* none on 845+ */