DEVICE_CFG_DUAL_DVOC  164 drivers/gpu/drm/gma500/intel_bios.h #define DEVICE_CFG_DUAL_DVOC	0x12
DEVICE_CFG_DUAL_DVOC  259 drivers/gpu/drm/i915/display/intel_vbt_defs.h #define DEVICE_CFG_DUAL_DVOC	0x12