SPI_RX_CPHA_FLIP
controller->mode_bits |= SPI_RX_CPHA_FLIP;
bool flip_cpha = (spi->mode & SPI_RX_CPHA_FLIP) && spi_imx->rx_only;
| SPI_RX_CPHA_FLIP | SPI_3WIRE_HIZ \
mode |= SPI_RX_CPHA_FLIP;