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| author | Mike Frysinger <vapier@gentoo.org> | 2010-02-25 10:00:55 +0000 |
|---|---|---|
| committer | Mike Frysinger <vapier@gentoo.org> | 2010-10-18 02:49:41 -0400 |
| commit | 7715aad4ef5cccb318942a0c47aef8a39d6130d7 (patch) | |
| tree | 4a77c9f18d5a96f37bd970e1ceffdc5f813f765c /drivers/spi | |
| parent | a75bd65b2189d711938d0fa7d9a79df47ddd66fa (diff) | |
| download | op-kernel-dev-7715aad4ef5cccb318942a0c47aef8a39d6130d7.zip op-kernel-dev-7715aad4ef5cccb318942a0c47aef8a39d6130d7.tar.gz | |
spi/bfin_spi: reject unsupported SPI modes
Who knows what people will try!
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Diffstat (limited to 'drivers/spi')
| -rw-r--r-- | drivers/spi/spi_bfin5xx.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/spi/spi_bfin5xx.c b/drivers/spi/spi_bfin5xx.c index 18b313a..a91e556 100644 --- a/drivers/spi/spi_bfin5xx.c +++ b/drivers/spi/spi_bfin5xx.c @@ -1022,6 +1022,10 @@ static int bfin_spi_setup(struct spi_device *spi) } /* translate common spi framework into our register */ + if (spi->mode & ~(SPI_CPOL | SPI_CPHA | SPI_LSB_FIRST)) { + dev_err(&spi->dev, "unsupported spi modes detected\n"); + goto error; + } if (spi->mode & SPI_CPOL) chip->ctl_reg |= BIT_CTL_CPOL; if (spi->mode & SPI_CPHA) |
