spi/bcm63xx: check spi bits_per_word in spi_setup
Instead of fixing up the bits_per_word (which the spi subsystem already
does for us), check it for supported values.
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
Acked-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/drivers/spi/spi-bcm63xx.c b/drivers/spi/spi-bcm63xx.c
index 04c460e..b64229c 100644
--- a/drivers/spi/spi-bcm63xx.c
+++ b/drivers/spi/spi-bcm63xx.c
@@ -151,8 +151,11 @@
static int bcm63xx_spi_setup(struct spi_device *spi)
{
- if (!spi->bits_per_word)
- spi->bits_per_word = 8;
+ if (spi->bits_per_word != 8) {
+ dev_err(&spi->dev, "%s, unsupported bits_per_word=%d\n",
+ __func__, spi->bits_per_word);
+ return -EINVAL;
+ }
return 0;
}