drivers/spi/Kconfig

   1 config DM_SPI
   2         bool "Enable Driver Model for SPI drivers"
   3         depends on DM
   4         help
   5           Enable driver model for SPI. The SPI slave interface
   6           (spi_setup_slave(), spi_xfer(), etc.) is then implemented by
   7           the SPI uclass. Drivers provide methods to access the SPI
   8           buses that they control. The uclass interface is defined in
   9           include/spi.h. The existing spi_slave structure is attached
  10           as 'parent data' to every slave on each bus. Slaves
  11           typically use driver-private data instead of extending the
  12           spi_slave structure.