| # MCUXpresso SDK SPI |
| |
| # Copyright (c) 2018, NXP |
| # SPDX-License-Identifier: Apache-2.0 |
| |
| config SPI_MCUX_LPSPI |
| bool "MCUX SPI driver" |
| default y |
| depends on DT_HAS_NXP_IMX_LPSPI_ENABLED |
| depends on CLOCK_CONTROL |
| select PINCTRL |
| help |
| Enable support for mcux spi driver. |
| |
| if SPI_MCUX_LPSPI |
| config SPI_MCUX_LPSPI_DMA |
| bool "MCUX LPSPI SPI DMA Support" |
| select DMA |
| help |
| Enable the SPI DMA mode for SPI instances |
| that enable dma channels in their device tree node. |
| |
| if SPI_RTIO |
| config SPI_MCUX_RTIO_SQ_SIZE |
| int "number of available submission queue entries" |
| default 8 # sensible default that covers most common spi transactions |
| help |
| when rtio is use with spi each driver holds a context with which blocking |
| api calls use to perform spi transactions. this queue needs to be as deep |
| as the longest set of spi_buf_sets used, where normal spi operations are |
| used (equal length buffers). it may need to be slightly deeper where the |
| spi buffer sets for transmit/receive are not always matched equally in |
| length as these are transformed into normal transceives. |
| endif # SPI_RTIO |
| |
| endif # SPI_MCUX_LPSPI |
