default or selected kernelversion does not have config value CONFIG_CAN_CTUCANFD_PCI.
Result is shown for kernelversion 6.9-rc4

CTU CAN-FD IP core PCI/PCIe driver

modulename: ctucanfd_pci.ko

configname: CONFIG_CAN_CTUCANFD_PCI

Linux Kernel Configuration
└─>Device Drivers
└─>Network device support
└─>CAN Device Drivers
└─>PCI support
└─>CTU CAN-FD IP core PCI/PCIe driver
In linux kernel since version 5.2 (release Date: 2019-07-07)  
This driver adds PCI/PCIe support for CTU CAN-FD IP core.
The project providing FPGA design for Intel EP4CGX15 based DB4CGX15
PCIe board with PiKRON.com designed transceiver riser shield is available
at https://gitlab.fel.cvut.cz/canbus/pcie-ctucanfd .

source code: