298 static void cs_activate(struct atmel_spi *as, struct spi_device *spi)  in cs_activate()  argument
300 	struct atmel_spi_device *asd = spi->controller_state;  in cs_activate()
301 	unsigned active = spi->mode & SPI_CS_HIGH;  in cs_activate()
305 		spi_writel(as, CSR0 + 4 * spi->chip_select, asd->csr);  in cs_activate()
312 					SPI_BF(PCS, ~(0x01 << spi->chip_select))  in cs_activate()
318 					SPI_BF(PCS, ~(0x01 << spi->chip_select))  in cs_activate()
326 		u32 cpol = (spi->mode & SPI_CPOL) ? SPI_BIT(CPOL) : 0;  in cs_activate()
331 		for (i = 0; i < spi->master->num_chipselect; i++) {  in cs_activate()
339 		mr = SPI_BFINS(PCS, ~(1 << spi->chip_select), mr);  in cs_activate()
340 		if (spi->chip_select != 0)  in cs_activate()
345 	dev_dbg(&spi->dev, "activate %u%s, mr %08x\n",  in cs_activate()
350 static void cs_deactivate(struct atmel_spi *as, struct spi_device *spi)  in cs_deactivate()  argument
352 	struct atmel_spi_device *asd = spi->controller_state;  in cs_deactivate()
353 	unsigned active = spi->mode & SPI_CS_HIGH;  in cs_deactivate()
360 	if (~SPI_BFEXT(PCS, mr) & (1 << spi->chip_select)) {  in cs_deactivate()
365 	dev_dbg(&spi->dev, "DEactivate %u%s, mr %08x\n",  in cs_deactivate()
369 	if (atmel_spi_is_v2(as) || spi->chip_select != 0)  in cs_deactivate()
674 				    struct spi_device *spi,  in atmel_spi_set_xfer_speed()  argument
703 		dev_err(&spi->dev,  in atmel_spi_set_xfer_speed()
709 		dev_err(&spi->dev,  in atmel_spi_set_xfer_speed()
714 	csr = spi_readl(as, CSR0 + 4 * spi->chip_select);  in atmel_spi_set_xfer_speed()
716 	spi_writel(as, CSR0 + 4 * spi->chip_select, csr);  in atmel_spi_set_xfer_speed()
742 	if (msg->spi->bits_per_word > 8)  in atmel_spi_pdc_next_xfer()
747 	dev_dbg(&msg->spi->dev,  in atmel_spi_pdc_next_xfer()
761 		if (msg->spi->bits_per_word > 8)  in atmel_spi_pdc_next_xfer()
766 		dev_dbg(&msg->spi->dev,  in atmel_spi_pdc_next_xfer()
975 static int atmel_spi_setup(struct spi_device *spi)  in atmel_spi_setup()  argument
980 	unsigned int		bits = spi->bits_per_word;  in atmel_spi_setup()
984 	as = spi_master_get_devdata(spi->master);  in atmel_spi_setup()
988 			&& spi->chip_select == 0  in atmel_spi_setup()
989 			&& (spi->mode & SPI_CS_HIGH)) {  in atmel_spi_setup()
990 		dev_dbg(&spi->dev, "setup: can't be active-high\n");  in atmel_spi_setup()
995 	if (spi->mode & SPI_CPOL)  in atmel_spi_setup()
997 	if (!(spi->mode & SPI_CPHA))  in atmel_spi_setup()
1010 	npcs_pin = (unsigned long)spi->controller_data;  in atmel_spi_setup()
1012 	if (gpio_is_valid(spi->cs_gpio))  in atmel_spi_setup()
1013 		npcs_pin = spi->cs_gpio;  in atmel_spi_setup()
1015 	asd = spi->controller_state;  in atmel_spi_setup()
1021 		ret = gpio_request(npcs_pin, dev_name(&spi->dev));  in atmel_spi_setup()
1028 		spi->controller_state = asd;  in atmel_spi_setup()
1029 		gpio_direction_output(npcs_pin, !(spi->mode & SPI_CS_HIGH));  in atmel_spi_setup()
1034 	dev_dbg(&spi->dev,  in atmel_spi_setup()
1036 		bits, spi->mode, spi->chip_select, csr);  in atmel_spi_setup()
1039 		spi_writel(as, CSR0 + 4 * spi->chip_select, csr);  in atmel_spi_setup()
1049 	struct spi_device	*spi = msg->spi;  in atmel_spi_one_transfer()  local
1060 		dev_dbg(&spi->dev, "missing rx or tx buf\n");  in atmel_spi_one_transfer()
1065 		asd = spi->controller_state;  in atmel_spi_one_transfer()
1068 			dev_dbg(&spi->dev,  in atmel_spi_one_transfer()
1084 	atmel_spi_set_xfer_speed(as, msg->spi, xfer);  in atmel_spi_one_transfer()
1099 				dev_err(&spi->dev,  in atmel_spi_one_transfer()
1117 			dev_err(&spi->dev, "spi transfer timeout\n");  in atmel_spi_one_transfer()
1180 				cs_activate(as, msg->spi);  in atmel_spi_one_transfer()
1182 				cs_deactivate(as, msg->spi);  in atmel_spi_one_transfer()
1194 	struct spi_device *spi = msg->spi;  in atmel_spi_transfer_one_message()  local
1199 	dev_dbg(&spi->dev, "new message %p submitted for %s\n",  in atmel_spi_transfer_one_message()
1200 					msg, dev_name(&spi->dev));  in atmel_spi_transfer_one_message()
1203 	cs_activate(as, spi);  in atmel_spi_transfer_one_message()
1221 		dev_dbg(&spi->dev,  in atmel_spi_transfer_one_message()
1230 		cs_deactivate(as, msg->spi);  in atmel_spi_transfer_one_message()
1235 	spi_finalize_current_message(spi->master);  in atmel_spi_transfer_one_message()
1240 static void atmel_spi_cleanup(struct spi_device *spi)  in atmel_spi_cleanup()  argument
1242 	struct atmel_spi_device	*asd = spi->controller_state;  in atmel_spi_cleanup()
1243 	unsigned		gpio = (unsigned long) spi->controller_data;  in atmel_spi_cleanup()
1248 	spi->controller_state = NULL;  in atmel_spi_cleanup()