mxl86110_read_extended_reg
val = mxl86110_read_extended_reg(phydev, MXL86110_EXT_WOL_CFG_REG);
val = mxl86110_read_extended_reg(phydev,
chip_config = mxl86110_read_extended_reg(phydev, MXL86110_EXT_CHIP_CFG_REG);