diff options
Diffstat (limited to 'drivers/spi')
| -rw-r--r-- | drivers/spi/Kconfig | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig index e1678e63e6..7ae2727cf7 100644 --- a/drivers/spi/Kconfig +++ b/drivers/spi/Kconfig @@ -2,5 +2,11 @@ config DM_SPI bool "Enable Driver Model for SPI drivers" depends on DM help - If you want to use driver model for SPI drivers, say Y. - To use legacy SPI drivers, say N. + Enable driver model for SPI. The SPI slave interface + (spi_setup_slave(), spi_xfer(), etc.) is then implemented by + the SPI uclass. Drivers provide methods to access the SPI + buses that they control. The uclass interface is defined in + include/spi.h. The existing spi_slave structure is attached + as 'parent data' to every slave on each bus. Slaves + typically use driver-private data instead of extending the + spi_slave structure. |