diff options
| author |   Jan Nikitenko <jan.nikitenko@gmail.com> | 2009-12-07 12:50:30 +0000 |
|---|---|---|
| committer |   Grant Likely <grant.likely@secretlab.ca> | 2009-12-08 18:48:16 -0700 |
| commit | 04ba24b34ac8ea4885295a7f7f78f719bc8c859b (patch) | |
| tree | 084b85b31b34445137d8a71efc379891757fc25b /drivers/spi | |
| parent | spi/mpc8xxx: don't use __exit_p to wrap plat_mpc8xxx_spi_remove (diff) | |
| download | linux-dev-04ba24b34ac8ea4885295a7f7f78f719bc8c859b.tar.xz linux-dev-04ba24b34ac8ea4885295a7f7f78f719bc8c859b.zip | |
spi/au1550_spi: fix setupxfer not to override cfg with zeros
fix setupxfer() not to override generic configuration of speed_hz
and bits_per_word with zeros
Signed-off-by: Jan Nikitenko <jan.nikitenko@gmail.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Diffstat (limited to 'drivers/spi')
| -rw-r--r-- | drivers/spi/au1550_spi.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/drivers/spi/au1550_spi.c b/drivers/spi/au1550_spi.c index 76cbc1a66598..cfd5ff9508fa 100644 --- a/drivers/spi/au1550_spi.c +++ b/drivers/spi/au1550_spi.c @@ -237,8 +237,14 @@ static int au1550_spi_setupxfer(struct spi_device *spi, struct spi_transfer *t) unsigned bpw, hz; u32 cfg, stat; - bpw = t ? t->bits_per_word : spi->bits_per_word; - hz = t ? t->speed_hz : spi->max_speed_hz; + bpw = spi->bits_per_word; + hz = spi->max_speed_hz; + if (t) { + if (t->bits_per_word) + bpw = t->bits_per_word; + if (t->speed_hz) + hz = t->speed_hz; + } if (bpw < 4 || bpw > 24) { dev_err(&spi->dev, "setupxfer: invalid bits_per_word=%d\n", |