Vignesh Raghavendra authored Jan 02, 2020 and Mark Brown committed Jan 03, 2020

SPI core supports Octal SPI controllers which have 8 IO lines.
Therefore document 8 as a valid option for spi-tx{rx}-bus-width
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Link: https://lore.kernel.org/r/20200102102118.23318-1-vigneshr@ti.com

Signed-off-by: Mark Brown <broonie@kernel.org>