776519075b
Added Kconfig that switches RTIO Support in the LPSPI driver. Signed-off-by: Emilio Benavente <emilio.benavente@nxp.com>
37 lines
1.1 KiB
Plaintext
37 lines
1.1 KiB
Plaintext
# MCUXpresso SDK SPI
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# Copyright (c) 2018, NXP
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# SPDX-License-Identifier: Apache-2.0
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config SPI_MCUX_LPSPI
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bool "MCUX SPI driver"
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default y
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depends on DT_HAS_NXP_IMX_LPSPI_ENABLED
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depends on CLOCK_CONTROL
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select PINCTRL
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help
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Enable support for mcux spi driver.
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if SPI_MCUX_LPSPI
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config SPI_MCUX_LPSPI_DMA
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bool "MCUX LPSPI SPI DMA Support"
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select DMA
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help
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Enable the SPI DMA mode for SPI instances
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that enable dma channels in their device tree node.
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if SPI_RTIO
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config SPI_MCUX_RTIO_SQ_SIZE
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int "number of avialable submission queue entries"
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default 8 # sensible default that covers most common spi transactions
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help
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when rtio is use with spi each driver holds a context with which blocking
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api calls use to perform spi transactions. this queue needs to be as deep
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as the longest set of spi_buf_sets used, where normal spi operations are
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used (equal length buffers). it may need to be slightly deeper where the
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spi buffer sets for transmit/receive are not always matched equally in
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length as these are transformed into normal transceives.
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endif # SPI_RTIO
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endif # SPI_MCUX_LPSPI
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