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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-03-18 17:01:19 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-03-18 17:01:19 -0700 |
| commit | 9d20593a722c2dab7a5ab74f5d8c9b604aca52f9 (patch) | |
| tree | b5492b3191f29f68018c4d76f41f8bab379db0c5 /drivers/spi | |
| parent | 9b59a0a4eefa132a3899b6e8d362f92559c67844 (diff) | |
| parent | 9205124c66a69664c6825501cb062ebd2acd3b3a (diff) | |
| download | linux-9d20593a722c2dab7a5ab74f5d8c9b604aca52f9.tar.bz2 | |
Merge branch 'merge' of git://git.secretlab.ca/git/linux-2.6
* 'merge' of git://git.secretlab.ca/git/linux-2.6:
powerpc/5200: Build fix for mpc52xx watchdog timer code
of: Fix comparison of "compatible" properties
powerpc/52xx: update defconfigs
spi/omap2_mcspi: Use transaction speed if provided
spi/omap2_mcspi: fix NULL pointer dereference
uartlite: Fix build on sparc.
Diffstat (limited to 'drivers/spi')
| -rw-r--r-- | drivers/spi/omap2_mcspi.c | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/drivers/spi/omap2_mcspi.c b/drivers/spi/omap2_mcspi.c index 715c518b1b68..4dd786b99b8b 100644 --- a/drivers/spi/omap2_mcspi.c +++ b/drivers/spi/omap2_mcspi.c @@ -578,6 +578,7 @@ static int omap2_mcspi_setup_transfer(struct spi_device *spi, struct spi_master *spi_cntrl; u32 l = 0, div = 0; u8 word_len = spi->bits_per_word; + u32 speed_hz = spi->max_speed_hz; mcspi = spi_master_get_devdata(spi->master); spi_cntrl = mcspi->master; @@ -587,9 +588,12 @@ static int omap2_mcspi_setup_transfer(struct spi_device *spi, cs->word_len = word_len; - if (spi->max_speed_hz) { + if (t && t->speed_hz) + speed_hz = t->speed_hz; + + if (speed_hz) { while (div <= 15 && (OMAP2_MCSPI_MAX_FREQ / (1 << div)) - > spi->max_speed_hz) + > speed_hz) div++; } else div = 15; @@ -751,11 +755,13 @@ static void omap2_mcspi_cleanup(struct spi_device *spi) mcspi = spi_master_get_devdata(spi->master); mcspi_dma = &mcspi->dma_channels[spi->chip_select]; - /* Unlink controller state from context save list */ - cs = spi->controller_state; - list_del(&cs->node); + if (spi->controller_state) { + /* Unlink controller state from context save list */ + cs = spi->controller_state; + list_del(&cs->node); - kfree(spi->controller_state); + kfree(spi->controller_state); + } if (mcspi_dma->dma_rx_channel != -1) { omap_free_dma(mcspi_dma->dma_rx_channel); |