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| author | Yogesh Narayan Gaur <yogeshnarayan.gaur@nxp.com> | 2018-12-03 11:39:06 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2018-12-03 20:14:53 +0300 |
| commit | 6b03061f882de49b83ccf44beb3a12c920a2da1b (patch) | |
| tree | fde15c5042859a38003ae199754b51deb3595e9c /include/linux/spi/spi.h | |
| parent | c2b142cc3939e932d4fa2210c2a5155df5736590 (diff) | |
| download | linux-6b03061f882de49b83ccf44beb3a12c920a2da1b.tar.xz | |
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>
Diffstat (limited to 'include/linux/spi/spi.h')
| -rw-r--r-- | include/linux/spi/spi.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/include/linux/spi/spi.h b/include/linux/spi/spi.h index 6be77fa5ab90..0c1ca5dedbb4 100644 --- a/include/linux/spi/spi.h +++ b/include/linux/spi/spi.h @@ -154,7 +154,9 @@ struct spi_device { #define SPI_TX_QUAD 0x200 /* transmit with 4 wires */ #define SPI_RX_DUAL 0x400 /* receive with 2 wires */ #define SPI_RX_QUAD 0x800 /* receive with 4 wires */ -#define SPI_CS_WORD 0x1000 /* toggle cs after each word */ +#define SPI_CS_WORD 0x1000 /* toggle cs after each word */ +#define SPI_TX_OCTAL 0x2000 /* transmit with 8 wires */ +#define SPI_RX_OCTAL 0x4000 /* receive with 8 wires */ int irq; void *controller_state; void *controller_data; |