109  * @tx_bytes:		Number of bytes left to transfer
236  * @transfer:	Pointer to the spi_transfer structure which provides
237  *		information about next transfer setup parameters
242  * is lower than the requested frequency (maximum lower) for the transfer. If
248 				       struct spi_transfer *transfer)  in cdns_spi_config_clock_freq()  argument
259 	if (xspi->speed_hz != transfer->speed_hz) {  in cdns_spi_config_clock_freq()
263 		       (frequency / (2 << baud_rate_val)) > transfer->speed_hz)  in cdns_spi_config_clock_freq()
275  * cdns_spi_setup_transfer - Configure SPI controller for specified transfer
277  * @transfer:	Pointer to the spi_transfer structure which provides
278  *		information about next transfer setup parameters
280  * Sets the operational mode of SPI controller for the next SPI transfer and
286 				   struct spi_transfer *transfer)  in cdns_spi_setup_transfer()  argument
290 	cdns_spi_config_clock_freq(spi, transfer);  in cdns_spi_setup_transfer()
335  * On Mode Fault interrupt this function indicates that transfer is completed,
352 		/* Indicate that transfer is completed, the SPI subsystem will  in cdns_spi_irq()
380 			/* Transfer is completed */  in cdns_spi_irq()
399  * cdns_transfer_one - Initiates the SPI transfer
402  * @transfer:	Pointer to the spi_transfer structure which provides
403  *		information about next transfer parameters
405  * This function fills the TX FIFO, starts the SPI transfer and
406  * returns a positive transfer count so that core will wait for completion.
408  * Return:	Number of bytes transferred in the last transfer
412 			     struct spi_transfer *transfer)  in cdns_transfer_one()  argument
416 	xspi->txbuf = transfer->tx_buf;  in cdns_transfer_one()
417 	xspi->rxbuf = transfer->rx_buf;  in cdns_transfer_one()
418 	xspi->tx_bytes = transfer->len;  in cdns_transfer_one()
419 	xspi->rx_bytes = transfer->len;  in cdns_transfer_one()
421 	cdns_spi_setup_transfer(spi, transfer);  in cdns_transfer_one()
423 	spi_transfer_delay_exec(transfer);  in cdns_transfer_one()
426 	return transfer->len;  in cdns_transfer_one()
430  * cdns_prepare_transfer_hardware - Prepares hardware for transfer.
448  * cdns_unprepare_transfer_hardware - Relaxes hardware after transfer