170 					struct spi_device *spi,  in bcm2835_spi_transfer_one_irq()  argument
182 	if (gpio_is_valid(spi->cs_gpio)) {  in bcm2835_spi_transfer_one_irq()
304 					struct spi_device *spi,  in bcm2835_spi_transfer_one_dma()  argument
314 		dev_warn_once(&spi->dev,  in bcm2835_spi_transfer_one_dma()
316 		return bcm2835_spi_transfer_one_irq(master, spi, tfr, cs);  in bcm2835_spi_transfer_one_dma()
357 				struct spi_device *spi,  in bcm2835_spi_can_dma()  argument
361 	if (!gpio_is_valid(spi->cs_gpio))  in bcm2835_spi_can_dma()
375 		dev_warn_once(&spi->dev,  in bcm2835_spi_can_dma()
390 		dev_warn_once(&spi->dev,  in bcm2835_spi_can_dma()
395 		dev_warn_once(&spi->dev,  in bcm2835_spi_can_dma()
480 					 struct spi_device *spi,  in bcm2835_spi_transfer_one_poll()  argument
512 			dev_dbg_ratelimited(&spi->dev,  in bcm2835_spi_transfer_one_poll()
517 			return bcm2835_spi_transfer_one_irq(master, spi,  in bcm2835_spi_transfer_one_poll()
529 				    struct spi_device *spi,  in bcm2835_spi_transfer_one()  argument
558 	if ((spi->mode & SPI_3WIRE) && (tfr->rx_buf))  in bcm2835_spi_transfer_one()
567 	if (gpio_is_valid(spi->cs_gpio) || (spi->mode & SPI_NO_CS))  in bcm2835_spi_transfer_one()
584 		return bcm2835_spi_transfer_one_poll(master, spi, tfr,  in bcm2835_spi_transfer_one()
588 	if (master->can_dma && bcm2835_spi_can_dma(master, spi, tfr))  in bcm2835_spi_transfer_one()
589 		return bcm2835_spi_transfer_one_dma(master, spi, tfr, cs);  in bcm2835_spi_transfer_one()
592 	return bcm2835_spi_transfer_one_irq(master, spi, tfr, cs);  in bcm2835_spi_transfer_one()
598 	struct spi_device *spi = msg->spi;  in bcm2835_spi_prepare_message()  local
604 	if (spi->mode & SPI_CPOL)  in bcm2835_spi_prepare_message()
606 	if (spi->mode & SPI_CPHA)  in bcm2835_spi_prepare_message()
629 static void bcm2835_spi_set_cs(struct spi_device *spi, bool gpio_level)  in bcm2835_spi_set_cs()  argument
641 	struct spi_master *master = spi->master;  in bcm2835_spi_set_cs()
647 	enable = (spi->mode & SPI_CS_HIGH) ? gpio_level : !gpio_level;  in bcm2835_spi_set_cs()
650 	if (spi->mode & SPI_CS_HIGH) {  in bcm2835_spi_set_cs()
653 		cs |= BCM2835_SPI_CS_CSPOL0 << spi->chip_select;  in bcm2835_spi_set_cs()
657 		cs &= ~(BCM2835_SPI_CS_CSPOL0 << spi->chip_select);  in bcm2835_spi_set_cs()
663 		if (spi->mode & SPI_NO_CS) {  in bcm2835_spi_set_cs()
669 			cs |= spi->chip_select;  in bcm2835_spi_set_cs()
687 static int bcm2835_spi_setup(struct spi_device *spi)  in bcm2835_spi_setup()  argument
694 	if (spi->mode & SPI_NO_CS)  in bcm2835_spi_setup()
696 	if (gpio_is_valid(spi->cs_gpio))  in bcm2835_spi_setup()
698 	if (spi->chip_select > 1) {  in bcm2835_spi_setup()
703 		dev_err(&spi->dev,  in bcm2835_spi_setup()
715 	spi->cs_gpio = chip->base + 8 - spi->chip_select;  in bcm2835_spi_setup()
718 	dev_info(&spi->dev, "setting up native-CS%i as GPIO %i\n",  in bcm2835_spi_setup()
719 		 spi->chip_select, spi->cs_gpio);  in bcm2835_spi_setup()
722 	err = gpio_direction_output(spi->cs_gpio,  in bcm2835_spi_setup()
723 				    (spi->mode & SPI_CS_HIGH) ? 0 : 1);  in bcm2835_spi_setup()
725 		dev_err(&spi->dev,  in bcm2835_spi_setup()
727 			spi->chip_select, spi->cs_gpio, err);  in bcm2835_spi_setup()
734 	gpio_set_value(spi->cs_gpio, (spi->mode & SPI_CS_HIGH) ? 0 : 1);  in bcm2835_spi_setup()