spi: add support for octal mode I/O data transfer

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Add flags for Octal mode I/O data transfer
Required for the SPI controller which can do the data transfer (TX/RX)
on 8 data lines e.g. NXP FlexSPI controller.
 SPI_TX_OCTAL: transmit with 8 wires
 SPI_RX_OCTAL: receive with 8 wires

Signed-off-by: Yogesh Gaur <yogeshnarayan.gaur@nxp.com>
Reviewed-by: Boris Brezillon <boris.brezillon@bootlin.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

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Yogesh Narayan Gaur 2018-12-03 08:39:06 +00:00 • committed by Mark Brown

parent c2b142cc39

commit 6b03061f88

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2 changed files with 13 additions and 3 deletions

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12

drivers/spi/spi.c

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4

include/linux/spi/spi.h

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