368 				struct spi_transfer *xfer)  in s3c64xx_spi_can_dma()  argument
372 	return xfer->len > (FIFO_LVL_MASK(sdd) >> 1) + 1;  in s3c64xx_spi_can_dma()
377 				struct spi_transfer *xfer, int dma_mode)  in enable_datapath()  argument
396 		writel(((xfer->len * 8 / sdd->cur_bpw) & 0xffff)  in enable_datapath()
401 	if (xfer->tx_buf != NULL) {  in enable_datapath()
406 			prepare_dma(&sdd->tx_dma, &xfer->tx_sg);  in enable_datapath()
411 					xfer->tx_buf, xfer->len / 4);  in enable_datapath()
415 					xfer->tx_buf, xfer->len / 2);  in enable_datapath()
419 					xfer->tx_buf, xfer->len);  in enable_datapath()
425 	if (xfer->rx_buf != NULL) {  in enable_datapath()
435 			writel(((xfer->len * 8 / sdd->cur_bpw) & 0xffff)  in enable_datapath()
438 			prepare_dma(&sdd->rx_dma, &xfer->rx_sg);  in enable_datapath()
468 			struct spi_transfer *xfer)  in wait_for_dma()  argument
476 	ms = xfer->len * 8 * 1000 / sdd->cur_speed;  in wait_for_dma()
491 	if (val && !xfer->rx_buf) {  in wait_for_dma()
511 			struct spi_transfer *xfer)  in wait_for_pio()  argument
522 	ms = xfer->len * 8 * 1000 / sdd->cur_speed;  in wait_for_pio()
528 	} while (RX_FIFO_LVL(status, sdd) < xfer->len && --val);  in wait_for_pio()
532 	if (!xfer->rx_buf) {  in wait_for_pio()
545 	loops = xfer->len / ((FIFO_LVL_MASK(sdd) >> 1) + 1);  in wait_for_pio()
546 	buf = xfer->rx_buf;  in wait_for_pio()
672 				    struct spi_transfer *xfer)  in s3c64xx_spi_transfer_one()  argument
684 	bpw = xfer->bits_per_word;  in s3c64xx_spi_transfer_one()
685 	speed = xfer->speed_hz ? : spi->max_speed_hz;  in s3c64xx_spi_transfer_one()
697 	     (xfer->len > ((FIFO_LVL_MASK(sdd) >> 1) + 1))))  in s3c64xx_spi_transfer_one()
706 	enable_datapath(sdd, spi, xfer, use_dma);  in s3c64xx_spi_transfer_one()
719 		status = wait_for_dma(sdd, xfer);  in s3c64xx_spi_transfer_one()
721 		status = wait_for_pio(sdd, xfer);  in s3c64xx_spi_transfer_one()
725 			xfer->rx_buf ? 1 : 0, xfer->tx_buf ? 1 : 0,  in s3c64xx_spi_transfer_one()
728 			xfer->len);  in s3c64xx_spi_transfer_one()
731 			if (xfer->tx_buf != NULL  in s3c64xx_spi_transfer_one()
734 			if (xfer->rx_buf != NULL  in s3c64xx_spi_transfer_one()