spi_qup_len
num_bytes = min_t(int, spi_qup_len(controller) -
remainder = DIV_ROUND_UP(spi_qup_len(controller) - controller->rx_bytes,
num_bytes = min_t(int, spi_qup_len(controller) -
remainder = DIV_ROUND_UP(spi_qup_len(controller) - controller->tx_bytes,
remainder_tx = DIV_ROUND_UP(spi_qup_len(controller) -
remainder_rx = DIV_ROUND_UP(spi_qup_len(controller) -