drivers/spi/spi-sun6i.c

212 				 struct spi_transfer *tfr)
218 	if (tfr->rx_buf) {
229 						 tfr->rx_sg.sgl,
230 						 tfr->rx_sg.nents,
240 	if (tfr->tx_buf) {
251 						 tfr->tx_sg.sgl,
252 						 tfr->tx_sg.nents,
262 	if (tfr->rx_buf) {
267 	if (tfr->tx_buf) {
277 				  struct spi_transfer *tfr)
288 	if (tfr->len > SUN6I_MAX_XFER_SIZE)
293 	sspi->tx_buf = tfr->tx_buf;
294 	sspi->rx_buf = tfr->rx_buf;
295 	sspi->len = tfr->len;
296 	use_dma = host->can_dma ? host->can_dma(host, spi, tfr) : false;
323 		if (tfr->tx_buf)
325 		if (tfr->rx_buf)
361 		rx_len = tfr->len;
375 		if (mclk_rate < (2 * tfr->speed_hz)) {
376 			clk_set_rate(sspi->mclk, 2 * tfr->speed_hz);
394 		div_cdr1 = DIV_ROUND_UP(mclk_rate, tfr->speed_hz);
398 			tfr->effective_speed_hz = mclk_rate / (2 * div_cdr2);
402 			tfr->effective_speed_hz = mclk_rate / (1 << div);
407 		clk_set_rate(sspi->mclk, tfr->speed_hz);
408 		tfr->effective_speed_hz = clk_get_rate(sspi->mclk);
422 		if (tfr->effective_speed_hz <= 24000000)
424 		else if (tfr->effective_speed_hz >= 80000000)
437 		tx_len = tfr->len;
438 		nbits = tfr->tx_nbits;
439 	} else if (tfr->rx_buf) {
440 		nbits = tfr->rx_nbits;
457 	sun6i_spi_write(sspi, SUN6I_BURST_CNT_REG, tfr->len);
464 		ret = sun6i_spi_prepare_dma(sspi, tfr);
489 	tx_time = spi_controller_xfer_timeout(host, tfr);
513 			 dev_name(&spi->dev), tfr->len, tfr->speed_hz,