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path: root/drivers/tty/serial
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Diffstat (limited to 'drivers/tty/serial')
-rw-r--r--drivers/tty/serial/sc16is7xx.c5
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/tty/serial/sc16is7xx.c b/drivers/tty/serial/sc16is7xx.c
index 17b90f971f96..798fa115b28a 100644
--- a/drivers/tty/serial/sc16is7xx.c
+++ b/drivers/tty/serial/sc16is7xx.c
@@ -1733,7 +1733,10 @@ static int sc16is7xx_spi_probe(struct spi_device *spi)
/* Setup SPI bus */
spi->bits_per_word = 8;
- /* only supports mode 0 on SC16IS762 */
+ /* For all variants, only mode 0 is supported */
+ if ((spi->mode & SPI_MODE_X_MASK) != SPI_MODE_0)
+ return dev_err_probe(&spi->dev, -EINVAL, "Unsupported SPI mode\n");
+
spi->mode = spi->mode ? : SPI_MODE_0;
spi->max_speed_hz = spi->max_speed_hz ? : 15000000;
ret = spi_setup(spi);