FDI_DP_PORT_WIDTH_SHIFT
#define FDI_DP_PORT_WIDTH_MASK (7 << FDI_DP_PORT_WIDTH_SHIFT)
#define FDI_DP_PORT_WIDTH(width) (((width) - 1) << FDI_DP_PORT_WIDTH_SHIFT)
*lanes = ((read32(txControl) & FDI_DP_PORT_WIDTH_MASK) >> FDI_DP_PORT_WIDTH_SHIFT) + 1;