Dragos Bogdan d962608ce2 spi: Add SPI_NO_TX/RX support ... Transmit/receive only is a valid SPI mode. For example, the MOSI/TX line might be missing from an ADC while for a DAC the MISO/RX line may be optional. This patch adds these two new modes: SPI_NO_TX and SPI_NO_RX. This way, the drivers will be able to identify if any of these two lines is missing and to adjust the transfers accordingly. Signed-off-by: Dragos Bogdan <dragos.bogdan@analog.com> Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Link: https://lore.kernel.org/r/20201221152936.53873-2-alexandru.ardelean@analog.com Signed-off-by: Mark Brown <broonie@kernel.org>		2020-12-28 14:21:31 +00:00
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spi.h	spi: Add SPI_NO_TX/RX support	2020-12-28 14:21:31 +00:00
spidev.h	spi: uapi: unify SPI modes into a single spi.h header	2020-12-28 14:21:30 +00:00