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| author | Ben Dooks <ben@simtec.co.uk> | 2009-08-18 14:11:17 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-08-18 16:31:13 -0700 |
| commit | 191529756633052680dd9d23ad63744ca5aa02a1 (patch) | |
| tree | 94f4f35d042dbbf3fb0a3692d98d117ce9ade130 /drivers | |
| parent | b8978784544e8b4e8fbacb558df8580957d4f8a5 (diff) | |
| download | linux-3.10-191529756633052680dd9d23ad63744ca5aa02a1.tar.gz linux-3.10-191529756633052680dd9d23ad63744ca5aa02a1.tar.bz2 linux-3.10-191529756633052680dd9d23ad63744ca5aa02a1.zip | |
spi_s3c24xx: fix transfer setup code
Since the changes to the bitbang driver, there is the possibility we will
be called with either the speed_hz or bpw values zero. We take these to
mean that the default values (8 bits per word, or maximum bus speed).
Signed-off-by: Ben Dooks <ben@simtec.co.uk>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/spi/spi_s3c24xx.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/spi/spi_s3c24xx.c b/drivers/spi/spi_s3c24xx.c index 590be85c8f3..3f3119d760d 100644 --- a/drivers/spi/spi_s3c24xx.c +++ b/drivers/spi/spi_s3c24xx.c @@ -116,6 +116,12 @@ static int s3c24xx_spi_setupxfer(struct spi_device *spi, bpw = t ? t->bits_per_word : spi->bits_per_word; hz = t ? t->speed_hz : spi->max_speed_hz; + if (!bpw) + bpw = 8; + + if (!hz) + hz = spi->max_speed_hz; + if (bpw != 8) { dev_err(&spi->dev, "invalid bits-per-word (%d)\n", bpw); return -EINVAL; |