217 				     struct spi_transfer *xfer)  in mtk_spi_prepare_transfer()  argument
223 	if (xfer->speed_hz < spi_clk_hz / 2)  in mtk_spi_prepare_transfer()
224 		div = DIV_ROUND_UP(spi_clk_hz, xfer->speed_hz);  in mtk_spi_prepare_transfer()
312 				   struct spi_transfer *xfer)  in mtk_spi_setup_dma_addr()  argument
317 		writel(xfer->tx_dma, mdata->base + SPI_TX_SRC_REG);  in mtk_spi_setup_dma_addr()
319 		writel(xfer->rx_dma, mdata->base + SPI_RX_DST_REG);  in mtk_spi_setup_dma_addr()
324 				 struct spi_transfer *xfer)  in mtk_spi_fifo_transfer()  argument
329 	mdata->cur_transfer = xfer;  in mtk_spi_fifo_transfer()
330 	mdata->xfer_len = xfer->len;  in mtk_spi_fifo_transfer()
331 	mtk_spi_prepare_transfer(master, xfer);  in mtk_spi_fifo_transfer()
334 	if (xfer->len % 4)  in mtk_spi_fifo_transfer()
335 		cnt = xfer->len / 4 + 1;  in mtk_spi_fifo_transfer()
337 		cnt = xfer->len / 4;  in mtk_spi_fifo_transfer()
338 	iowrite32_rep(mdata->base + SPI_TX_DATA_REG, xfer->tx_buf, cnt);  in mtk_spi_fifo_transfer()
347 				struct spi_transfer *xfer)  in mtk_spi_dma_transfer()  argument
356 	mdata->cur_transfer = xfer;  in mtk_spi_dma_transfer()
358 	mtk_spi_prepare_transfer(master, xfer);  in mtk_spi_dma_transfer()
361 	if (xfer->tx_buf)  in mtk_spi_dma_transfer()
363 	if (xfer->rx_buf)  in mtk_spi_dma_transfer()
367 	if (xfer->tx_buf)  in mtk_spi_dma_transfer()
368 		mdata->tx_sgl = xfer->tx_sg.sgl;  in mtk_spi_dma_transfer()
369 	if (xfer->rx_buf)  in mtk_spi_dma_transfer()
370 		mdata->rx_sgl = xfer->rx_sg.sgl;  in mtk_spi_dma_transfer()
373 		xfer->tx_dma = sg_dma_address(mdata->tx_sgl);  in mtk_spi_dma_transfer()
377 		xfer->rx_dma = sg_dma_address(mdata->rx_sgl);  in mtk_spi_dma_transfer()
383 	mtk_spi_setup_dma_addr(master, xfer);  in mtk_spi_dma_transfer()
391 				struct spi_transfer *xfer)  in mtk_spi_transfer_one()  argument
393 	if (master->can_dma(master, spi, xfer))  in mtk_spi_transfer_one()
394 		return mtk_spi_dma_transfer(master, spi, xfer);  in mtk_spi_transfer_one()
396 		return mtk_spi_fifo_transfer(master, spi, xfer);  in mtk_spi_transfer_one()
401 			    struct spi_transfer *xfer)  in mtk_spi_can_dma()  argument
403 	return xfer->len > MTK_SPI_MAX_FIFO_SIZE;  in mtk_spi_can_dma()