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| author | Dragos Bogdan <dragos.bogdan@analog.com> | 2020-12-21 18:29:35 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2020-12-28 17:21:31 +0300 |
| commit | d962608ce2188a1d46ec9d356d6fad5cd6fc0341 (patch) | |
| tree | e129ab2ad7f2227640351917584bbf0ebb65da6e /Documentation/arm/keystone | |
| parent | f7005142dacea1769fba0152c493aaa61b33205c (diff) | |
| download | linux-d962608ce2188a1d46ec9d356d6fad5cd6fc0341.tar.xz | |
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>
Diffstat (limited to 'Documentation/arm/keystone')
0 files changed, 0 insertions, 0 deletions