ucMaxLane        4209 drivers/gpu/drm/amd/include/atombios.h   UCHAR   ucMaxLane;               //Bits 4:0 = MAX_LANE_COUNT (1/2/4). Bit 7 = ENHANCED_FRAME_CAP
ucMaxLane        3728 drivers/gpu/drm/radeon/atombios.h   UCHAR   ucMaxLane;               //Bits 4:0 = MAX_LANE_COUNT (1/2/4). Bit 7 = ENHANCED_FRAME_CAP