DFL bus driver for Altera SPI Controller

modulename: spi-altera-dfl.ko

configname: CONFIG_SPI_ALTERA_DFL

Linux Kernel Configuration
└─>Device Drivers
└─>SPI support
└─>DFL bus driver for Altera SPI Controller
In linux kernel since version 5.2 (release Date: 2019-07-07)  
This is a Device Feature List (DFL) bus driver for the
Altera SPI master controller. The SPI master is connected
to a SPI slave to Avalon bridge in a Intel MAX BMC.

source code: