diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c index 7694e1ae5b0b2f2d288abeb93eabac136693fb72..994576ff2da94463d4dcb43f74cf6552a9a2902a 100644 --- a/drivers/spi/spi.c +++ b/drivers/spi/spi.c @@ -3322,6 +3322,7 @@ static int __spi_validate_bits_per_word(struct spi_controller *ctlr, */ int spi_setup(struct spi_device *spi) { + struct spi_controller *ctlr = spi->controller; unsigned bad_bits, ugly_bits; int status; @@ -3339,6 +3340,14 @@ int spi_setup(struct spi_device *spi) (SPI_TX_DUAL | SPI_TX_QUAD | SPI_TX_OCTAL | SPI_RX_DUAL | SPI_RX_QUAD | SPI_RX_OCTAL))) return -EINVAL; + + if (ctlr->use_gpio_descriptors && ctlr->cs_gpiods && + ctlr->cs_gpiods[spi->chip_select] && !(spi->mode & SPI_CS_HIGH)) { + dev_dbg(&spi->dev, + "setup: forcing CS_HIGH (use_gpio_descriptors)\n"); + spi->mode |= SPI_CS_HIGH; + } + /* help drivers fail *cleanly* when they need options * that aren't supported with their current controller * SPI_CS_WORD has a fallback software implementation,