choice prompt "CAN driver choice,FD driver to achieve CAN function" config CAN_ROCKCHIP tristate "Rockchip CAN controller" depends on ARCH_ROCKCHIP help Say Y here if you want to use CAN controller found on Rockchip SoCs. To compile this driver as a module, choose M here: the module will be called rockchip_can. config CANFD_ROCKCHIP tristate "Rockchip CANFD controller" depends on ARCH_ROCKCHIP help Say Y here if you want to use CANFD controller found on Rockchip SoCs. To compile this driver as a module, choose M here: the module will be called rockchip_canfd. config CANFD_FORLINX tristate "Rockchip CANFD controller modefied by forlinx-manic" depends on ARCH_ROCKCHIP help Say Y here if you want to use CANFD controller found on Rockchip SoCs. To compile this driver as a module, choose M here: the module will be called rockchip_canfd. Forlinx optimization ID does not correspond to the data frame endchoice