spi: add support for octal mode I/O data transfer
authorYogesh Narayan Gaur <yogeshnarayan.gaur@nxp.com>
Mon, 3 Dec 2018 08:39:06 +0000 (08:39 +0000)
committerMark Brown <broonie@kernel.org>
Mon, 3 Dec 2018 17:14:53 +0000 (17:14 +0000)
commit6b03061f882de49b83ccf44beb3a12c920a2da1b
treefde15c5042859a38003ae199754b51deb3595e9c
parentc2b142cc3939e932d4fa2210c2a5155df5736590
spi: add support for octal mode I/O data transfer

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>
drivers/spi/spi.c
include/linux/spi/spi.h