tree 4aed4e024002e949bd33a043c57e7d30898329c0
parent a7cf72002fde2d04868c71646ef2a2c5137d4360
author Hironori KIKUCHI <kikuchan98@gmail.com> 1738287521 +0900
committer Tom Rini <trini@konsulko.com> 1739574769 -0600

spi: soft_spi: Add support for SPI_3WIRE

When 3-wire mode is claimed on the bus, use the MOSI (output) pin to
receive data. In this mode, since the transfer can only be either TX
or RX, return -EINVAL if both are required at the same time.

Signed-off-by: Hironori KIKUCHI <kikuchan98@gmail.com>