365 static void cs_activate(struct atmel_spi *as, struct spi_device *spi)  in cs_activate()  argument
367 	struct atmel_spi_device *asd = spi->controller_state;  in cs_activate()
368 	unsigned active = spi->mode & SPI_CS_HIGH;  in cs_activate()
372 		spi_writel(as, CSR0 + 4 * spi->chip_select, asd->csr);  in cs_activate()
379 					SPI_BF(PCS, ~(0x01 << spi->chip_select))  in cs_activate()
385 					SPI_BF(PCS, ~(0x01 << spi->chip_select))  in cs_activate()
394 		u32 cpol = (spi->mode & SPI_CPOL) ? SPI_BIT(CPOL) : 0;  in cs_activate()
399 		for (i = 0; i < spi->master->num_chipselect; i++) {  in cs_activate()
407 		mr = SPI_BFINS(PCS, ~(1 << spi->chip_select), mr);  in cs_activate()
408 		if (as->use_cs_gpios && spi->chip_select != 0)  in cs_activate()
413 	dev_dbg(&spi->dev, "activate %u%s, mr %08x\n",  in cs_activate()
418 static void cs_deactivate(struct atmel_spi *as, struct spi_device *spi)  in cs_deactivate()  argument
420 	struct atmel_spi_device *asd = spi->controller_state;  in cs_deactivate()
421 	unsigned active = spi->mode & SPI_CS_HIGH;  in cs_deactivate()
428 	if (~SPI_BFEXT(PCS, mr) & (1 << spi->chip_select)) {  in cs_deactivate()
433 	dev_dbg(&spi->dev, "DEactivate %u%s, mr %08x\n",  in cs_deactivate()
439 	else if (atmel_spi_is_v2(as) || spi->chip_select != 0)  in cs_deactivate()
860 				    struct spi_device *spi,  in atmel_spi_set_xfer_speed()  argument
882 		dev_err(&spi->dev,  in atmel_spi_set_xfer_speed()
888 		dev_err(&spi->dev,  in atmel_spi_set_xfer_speed()
893 	csr = spi_readl(as, CSR0 + 4 * spi->chip_select);  in atmel_spi_set_xfer_speed()
895 	spi_writel(as, CSR0 + 4 * spi->chip_select, csr);  in atmel_spi_set_xfer_speed()
921 	if (msg->spi->bits_per_word > 8)  in atmel_spi_pdc_next_xfer()
926 	dev_dbg(&msg->spi->dev,  in atmel_spi_pdc_next_xfer()
940 		if (msg->spi->bits_per_word > 8)  in atmel_spi_pdc_next_xfer()
945 		dev_dbg(&msg->spi->dev,  in atmel_spi_pdc_next_xfer()
1200 static int atmel_spi_setup(struct spi_device *spi)  in atmel_spi_setup()  argument
1205 	unsigned int		bits = spi->bits_per_word;  in atmel_spi_setup()
1209 	as = spi_master_get_devdata(spi->master);  in atmel_spi_setup()
1213 			&& spi->chip_select == 0  in atmel_spi_setup()
1214 			&& (spi->mode & SPI_CS_HIGH)) {  in atmel_spi_setup()
1215 		dev_dbg(&spi->dev, "setup: can't be active-high\n");  in atmel_spi_setup()
1220 	if (spi->mode & SPI_CPOL)  in atmel_spi_setup()
1222 	if (!(spi->mode & SPI_CPHA))  in atmel_spi_setup()
1237 	npcs_pin = (unsigned long)spi->controller_data;  in atmel_spi_setup()
1240 		npcs_pin = spi->chip_select;  in atmel_spi_setup()
1241 	else if (gpio_is_valid(spi->cs_gpio))  in atmel_spi_setup()
1242 		npcs_pin = spi->cs_gpio;  in atmel_spi_setup()
1244 	asd = spi->controller_state;  in atmel_spi_setup()
1251 			ret = gpio_request(npcs_pin, dev_name(&spi->dev));  in atmel_spi_setup()
1258 					      !(spi->mode & SPI_CS_HIGH));  in atmel_spi_setup()
1262 		spi->controller_state = asd;  in atmel_spi_setup()
1267 	dev_dbg(&spi->dev,  in atmel_spi_setup()
1269 		bits, spi->mode, spi->chip_select, csr);  in atmel_spi_setup()
1272 		spi_writel(as, CSR0 + 4 * spi->chip_select, csr);  in atmel_spi_setup()
1282 	struct spi_device	*spi = msg->spi;  in atmel_spi_one_transfer()  local
1293 		dev_dbg(&spi->dev, "missing rx or tx buf\n");  in atmel_spi_one_transfer()
1297 	asd = spi->controller_state;  in atmel_spi_one_transfer()
1300 		dev_dbg(&spi->dev,  in atmel_spi_one_transfer()
1315 	atmel_spi_set_xfer_speed(as, msg->spi, xfer);  in atmel_spi_one_transfer()
1330 				dev_err(&spi->dev,  in atmel_spi_one_transfer()
1348 			dev_err(&spi->dev, "spi transfer timeout\n");  in atmel_spi_one_transfer()
1411 				cs_activate(as, msg->spi);  in atmel_spi_one_transfer()
1413 				cs_deactivate(as, msg->spi);  in atmel_spi_one_transfer()
1425 	struct spi_device *spi = msg->spi;  in atmel_spi_transfer_one_message()  local
1430 	dev_dbg(&spi->dev, "new message %p submitted for %s\n",  in atmel_spi_transfer_one_message()
1431 					msg, dev_name(&spi->dev));  in atmel_spi_transfer_one_message()
1434 	cs_activate(as, spi);  in atmel_spi_transfer_one_message()
1452 		dev_dbg(&spi->dev,  in atmel_spi_transfer_one_message()
1461 		cs_deactivate(as, msg->spi);  in atmel_spi_transfer_one_message()
1466 	spi_finalize_current_message(spi->master);  in atmel_spi_transfer_one_message()
1471 static void atmel_spi_cleanup(struct spi_device *spi)  in atmel_spi_cleanup()  argument
1473 	struct atmel_spi_device	*asd = spi->controller_state;  in atmel_spi_cleanup()
1474 	unsigned		gpio = (unsigned long) spi->controller_data;  in atmel_spi_cleanup()
1479 	spi->controller_state = NULL;  in atmel_spi_cleanup()