135 static int orion_spi_baudrate_set(struct spi_device *spi, unsigned int speed)  in orion_spi_baudrate_set()  argument
144 	orion_spi = spi_controller_get_devdata(spi->controller);  in orion_spi_baudrate_set()
233 orion_spi_mode_set(struct spi_device *spi)  in orion_spi_mode_set()  argument
238 	orion_spi = spi_controller_get_devdata(spi->controller);  in orion_spi_mode_set()
242 	if (spi->mode & SPI_CPOL)  in orion_spi_mode_set()
244 	if (spi->mode & SPI_CPHA)  in orion_spi_mode_set()
246 	if (spi->mode & SPI_LSB_FIRST)  in orion_spi_mode_set()
255 orion_spi_50mhz_ac_timing_erratum(struct spi_device *spi, unsigned int speed)  in orion_spi_50mhz_ac_timing_erratum()  argument
260 	orion_spi = spi_controller_get_devdata(spi->controller);  in orion_spi_50mhz_ac_timing_erratum()
280 			speed == 50000000 && spi->mode & SPI_CPOL &&  in orion_spi_50mhz_ac_timing_erratum()
281 			spi->mode & SPI_CPHA)  in orion_spi_50mhz_ac_timing_erratum()
293 orion_spi_setup_transfer(struct spi_device *spi, struct spi_transfer *t)  in orion_spi_setup_transfer()  argument
296 	unsigned int speed = spi->max_speed_hz;  in orion_spi_setup_transfer()
297 	unsigned int bits_per_word = spi->bits_per_word;  in orion_spi_setup_transfer()
300 	orion_spi = spi_controller_get_devdata(spi->controller);  in orion_spi_setup_transfer()
308 	orion_spi_mode_set(spi);  in orion_spi_setup_transfer()
311 		orion_spi_50mhz_ac_timing_erratum(spi, speed);  in orion_spi_setup_transfer()
313 	rc = orion_spi_baudrate_set(spi, speed);  in orion_spi_setup_transfer()
327 static void orion_spi_set_cs(struct spi_device *spi, bool enable)  in orion_spi_set_cs()  argument
333 	orion_spi = spi_controller_get_devdata(spi->controller);  in orion_spi_set_cs()
348 	val |= ORION_SPI_CS(spi_get_chipselect(spi, 0));  in orion_spi_set_cs()
382 orion_spi_write_read_8bit(struct spi_device *spi,  in orion_spi_write_read_8bit()  argument
389 	cs_single_byte = spi->mode & SPI_CS_WORD;  in orion_spi_write_read_8bit()
391 	orion_spi = spi_controller_get_devdata(spi->controller);  in orion_spi_write_read_8bit()
394 		orion_spi_set_cs(spi, 0);  in orion_spi_write_read_8bit()
410 			orion_spi_set_cs(spi, 1);  in orion_spi_write_read_8bit()
414 		dev_err(&spi->dev, "TXS timed out\n");  in orion_spi_write_read_8bit()
422 		orion_spi_set_cs(spi, 1);  in orion_spi_write_read_8bit()
431 orion_spi_write_read_16bit(struct spi_device *spi,  in orion_spi_write_read_16bit()  argument
437 	if (spi->mode & SPI_CS_WORD) {  in orion_spi_write_read_16bit()
438 		dev_err(&spi->dev, "SPI_CS_WORD is only supported for 8 bit words\n");  in orion_spi_write_read_16bit()
442 	orion_spi = spi_controller_get_devdata(spi->controller);  in orion_spi_write_read_16bit()
456 		dev_err(&spi->dev, "TXS timed out\n");  in orion_spi_write_read_16bit()
467 orion_spi_write_read(struct spi_device *spi, struct spi_transfer *xfer)  in orion_spi_write_read()  argument
472 	int cs = spi_get_chipselect(spi, 0);  in orion_spi_write_read()
475 	word_len = spi->bits_per_word;  in orion_spi_write_read()
478 	orion_spi = spi_controller_get_devdata(spi->controller);  in orion_spi_write_read()
487 	if (vaddr && xfer->tx_buf && word_len == 8 && (spi->mode & SPI_CS_WORD) == 0) {  in orion_spi_write_read()
510 			if (orion_spi_write_read_8bit(spi, &tx, &rx) < 0)  in orion_spi_write_read()
520 			if (orion_spi_write_read_16bit(spi, &tx, &rx) < 0)  in orion_spi_write_read()
532 					struct spi_device *spi,  in orion_spi_transfer_one()  argument
537 	status = orion_spi_setup_transfer(spi, t);  in orion_spi_transfer_one()
542 		orion_spi_write_read(spi, t);  in orion_spi_transfer_one()
547 static int orion_spi_setup(struct spi_device *spi)  in orion_spi_setup()  argument
551 	struct orion_spi *orion_spi = spi_controller_get_devdata(spi->controller);  in orion_spi_setup()
557 	ret = orion_spi_setup_transfer(spi, NULL);  in orion_spi_setup()
648 	struct orion_spi *spi;  in orion_spi_probe()  local
654 	host = spi_alloc_host(&pdev->dev, sizeof(*spi));  in orion_spi_probe()
683 	spi = spi_controller_get_devdata(host);  in orion_spi_probe()
684 	spi->host = host;  in orion_spi_probe()
685 	spi->dev = &pdev->dev;  in orion_spi_probe()
689 	spi->devdata = devdata;  in orion_spi_probe()
691 	spi->clk = devm_clk_get(&pdev->dev, NULL);  in orion_spi_probe()
692 	if (IS_ERR(spi->clk)) {  in orion_spi_probe()
693 		status = PTR_ERR(spi->clk);  in orion_spi_probe()
697 	status = clk_prepare_enable(spi->clk);  in orion_spi_probe()
702 	spi->axi_clk = devm_clk_get(&pdev->dev, "axi");  in orion_spi_probe()
703 	if (PTR_ERR(spi->axi_clk) == -EPROBE_DEFER) {  in orion_spi_probe()
707 	if (!IS_ERR(spi->axi_clk))  in orion_spi_probe()
708 		clk_prepare_enable(spi->axi_clk);  in orion_spi_probe()
710 	tclk_hz = clk_get_rate(spi->clk);  in orion_spi_probe()
730 	spi->base = devm_platform_get_and_ioremap_resource(pdev, 0, &r);  in orion_spi_probe()
731 	if (IS_ERR(spi->base)) {  in orion_spi_probe()
732 		status = PTR_ERR(spi->base);  in orion_spi_probe()
766 		dir_acc = &spi->child[cs].direct_access;  in orion_spi_probe()
783 	status = orion_spi_reset(spi);  in orion_spi_probe()
797 	clk_disable_unprepare(spi->axi_clk);  in orion_spi_probe()
799 	clk_disable_unprepare(spi->clk);  in orion_spi_probe()
809 	struct orion_spi *spi = spi_controller_get_devdata(host);  in orion_spi_remove()  local
812 	clk_disable_unprepare(spi->axi_clk);  in orion_spi_remove()
813 	clk_disable_unprepare(spi->clk);  in orion_spi_remove()
825 	struct orion_spi *spi = spi_controller_get_devdata(host);  in orion_spi_runtime_suspend()  local
827 	clk_disable_unprepare(spi->axi_clk);  in orion_spi_runtime_suspend()
828 	clk_disable_unprepare(spi->clk);  in orion_spi_runtime_suspend()
835 	struct orion_spi *spi = spi_controller_get_devdata(host);  in orion_spi_runtime_resume()  local
837 	if (!IS_ERR(spi->axi_clk))  in orion_spi_runtime_resume()
838 		clk_prepare_enable(spi->axi_clk);  in orion_spi_runtime_resume()
839 	return clk_prepare_enable(spi->clk);  in orion_spi_runtime_resume()