136 static int orion_spi_baudrate_set(struct spi_device *spi, unsigned int speed)  in orion_spi_baudrate_set()  argument
145 	orion_spi = spi_master_get_devdata(spi->master);  in orion_spi_baudrate_set()
234 orion_spi_mode_set(struct spi_device *spi)  in orion_spi_mode_set()  argument
239 	orion_spi = spi_master_get_devdata(spi->master);  in orion_spi_mode_set()
243 	if (spi->mode & SPI_CPOL)  in orion_spi_mode_set()
245 	if (spi->mode & SPI_CPHA)  in orion_spi_mode_set()
247 	if (spi->mode & SPI_LSB_FIRST)  in orion_spi_mode_set()
256 orion_spi_50mhz_ac_timing_erratum(struct spi_device *spi, unsigned int speed)  in orion_spi_50mhz_ac_timing_erratum()  argument
261 	orion_spi = spi_master_get_devdata(spi->master);  in orion_spi_50mhz_ac_timing_erratum()
281 			speed == 50000000 && spi->mode & SPI_CPOL &&  in orion_spi_50mhz_ac_timing_erratum()
282 			spi->mode & SPI_CPHA)  in orion_spi_50mhz_ac_timing_erratum()
294 orion_spi_setup_transfer(struct spi_device *spi, struct spi_transfer *t)  in orion_spi_setup_transfer()  argument
297 	unsigned int speed = spi->max_speed_hz;  in orion_spi_setup_transfer()
298 	unsigned int bits_per_word = spi->bits_per_word;  in orion_spi_setup_transfer()
301 	orion_spi = spi_master_get_devdata(spi->master);  in orion_spi_setup_transfer()
309 	orion_spi_mode_set(spi);  in orion_spi_setup_transfer()
312 		orion_spi_50mhz_ac_timing_erratum(spi, speed);  in orion_spi_setup_transfer()
314 	rc = orion_spi_baudrate_set(spi, speed);  in orion_spi_setup_transfer()
328 static void orion_spi_set_cs(struct spi_device *spi, bool enable)  in orion_spi_set_cs()  argument
334 	orion_spi = spi_master_get_devdata(spi->master);  in orion_spi_set_cs()
349 	val |= ORION_SPI_CS(spi->chip_select);  in orion_spi_set_cs()
383 orion_spi_write_read_8bit(struct spi_device *spi,  in orion_spi_write_read_8bit()  argument
390 	cs_single_byte = spi->mode & SPI_CS_WORD;  in orion_spi_write_read_8bit()
392 	orion_spi = spi_master_get_devdata(spi->master);  in orion_spi_write_read_8bit()
395 		orion_spi_set_cs(spi, 0);  in orion_spi_write_read_8bit()
411 			orion_spi_set_cs(spi, 1);  in orion_spi_write_read_8bit()
415 		dev_err(&spi->dev, "TXS timed out\n");  in orion_spi_write_read_8bit()
423 		orion_spi_set_cs(spi, 1);  in orion_spi_write_read_8bit()
432 orion_spi_write_read_16bit(struct spi_device *spi,  in orion_spi_write_read_16bit()  argument
438 	if (spi->mode & SPI_CS_WORD) {  in orion_spi_write_read_16bit()
439 		dev_err(&spi->dev, "SPI_CS_WORD is only supported for 8 bit words\n");  in orion_spi_write_read_16bit()
443 	orion_spi = spi_master_get_devdata(spi->master);  in orion_spi_write_read_16bit()
457 		dev_err(&spi->dev, "TXS timed out\n");  in orion_spi_write_read_16bit()
468 orion_spi_write_read(struct spi_device *spi, struct spi_transfer *xfer)  in orion_spi_write_read()  argument
473 	int cs = spi->chip_select;  in orion_spi_write_read()
476 	word_len = spi->bits_per_word;  in orion_spi_write_read()
479 	orion_spi = spi_master_get_devdata(spi->master);  in orion_spi_write_read()
488 	if (vaddr && xfer->tx_buf && word_len == 8 && (spi->mode & SPI_CS_WORD) == 0) {  in orion_spi_write_read()
511 			if (orion_spi_write_read_8bit(spi, &tx, &rx) < 0)  in orion_spi_write_read()
521 			if (orion_spi_write_read_16bit(spi, &tx, &rx) < 0)  in orion_spi_write_read()
533 					struct spi_device *spi,  in orion_spi_transfer_one()  argument
538 	status = orion_spi_setup_transfer(spi, t);  in orion_spi_transfer_one()
543 		orion_spi_write_read(spi, t);  in orion_spi_transfer_one()
548 static int orion_spi_setup(struct spi_device *spi)  in orion_spi_setup()  argument
552 	struct orion_spi *orion_spi = spi_master_get_devdata(spi->master);  in orion_spi_setup()
558 	ret = orion_spi_setup_transfer(spi, NULL);  in orion_spi_setup()
649 	struct orion_spi *spi;  in orion_spi_probe()  local
655 	master = spi_alloc_master(&pdev->dev, sizeof(*spi));  in orion_spi_probe()
684 	spi = spi_master_get_devdata(master);  in orion_spi_probe()
685 	spi->master = master;  in orion_spi_probe()
686 	spi->dev = &pdev->dev;  in orion_spi_probe()
690 	spi->devdata = devdata;  in orion_spi_probe()
692 	spi->clk = devm_clk_get(&pdev->dev, NULL);  in orion_spi_probe()
693 	if (IS_ERR(spi->clk)) {  in orion_spi_probe()
694 		status = PTR_ERR(spi->clk);  in orion_spi_probe()
698 	status = clk_prepare_enable(spi->clk);  in orion_spi_probe()
703 	spi->axi_clk = devm_clk_get(&pdev->dev, "axi");  in orion_spi_probe()
704 	if (PTR_ERR(spi->axi_clk) == -EPROBE_DEFER) {  in orion_spi_probe()
708 	if (!IS_ERR(spi->axi_clk))  in orion_spi_probe()
709 		clk_prepare_enable(spi->axi_clk);  in orion_spi_probe()
711 	tclk_hz = clk_get_rate(spi->clk);  in orion_spi_probe()
732 	spi->base = devm_ioremap_resource(&pdev->dev, r);  in orion_spi_probe()
733 	if (IS_ERR(spi->base)) {  in orion_spi_probe()
734 		status = PTR_ERR(spi->base);  in orion_spi_probe()
768 		dir_acc = &spi->child[cs].direct_access;  in orion_spi_probe()
784 	status = orion_spi_reset(spi);  in orion_spi_probe()
798 	clk_disable_unprepare(spi->axi_clk);  in orion_spi_probe()
800 	clk_disable_unprepare(spi->clk);  in orion_spi_probe()
810 	struct orion_spi *spi = spi_master_get_devdata(master);  in orion_spi_remove()  local
813 	clk_disable_unprepare(spi->axi_clk);  in orion_spi_remove()
814 	clk_disable_unprepare(spi->clk);  in orion_spi_remove()
828 	struct orion_spi *spi = spi_master_get_devdata(master);  in orion_spi_runtime_suspend()  local
830 	clk_disable_unprepare(spi->axi_clk);  in orion_spi_runtime_suspend()
831 	clk_disable_unprepare(spi->clk);  in orion_spi_runtime_suspend()
838 	struct orion_spi *spi = spi_master_get_devdata(master);  in orion_spi_runtime_resume()  local
840 	if (!IS_ERR(spi->axi_clk))  in orion_spi_runtime_resume()
841 		clk_prepare_enable(spi->axi_clk);  in orion_spi_runtime_resume()
842 	return clk_prepare_enable(spi->clk);  in orion_spi_runtime_resume()