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| author | Ingo Molnar <mingo@elte.hu> | 2009-04-08 10:35:30 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-04-08 10:35:30 +0200 |
| commit | 5ea472a77f8e4811ceee3f44a9deda6ad6e8b789 (patch) | |
| tree | a9ec5019e2b666a19874fc344ffb0dd5da6bce94 /drivers/spi/spi_imx.c | |
| parent | 6c009ecef8cca28c7c09eb16d0802e37915a76e1 (diff) | |
| parent | 577c9c456f0e1371cbade38eaf91ae8e8a308555 (diff) | |
| download | linux-5ea472a77f8e4811ceee3f44a9deda6ad6e8b789.tar.bz2 | |
Merge commit 'v2.6.30-rc1' into perfcounters/core
Conflicts:
arch/powerpc/include/asm/systbl.h
arch/powerpc/include/asm/unistd.h
include/linux/init_task.h
Merge reason: the conflicts are non-trivial: PowerPC placement
of sys_perf_counter_open has to be mixed with the
new preadv/pwrite syscalls.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'drivers/spi/spi_imx.c')
| -rw-r--r-- | drivers/spi/spi_imx.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/spi/spi_imx.c b/drivers/spi/spi_imx.c index 0480d8bb19d3..0671aeef5792 100644 --- a/drivers/spi/spi_imx.c +++ b/drivers/spi/spi_imx.c @@ -186,6 +186,7 @@ #define QUEUE_STOPPED (1) #define IS_DMA_ALIGNED(x) (((u32)(x) & 0x03) == 0) +#define DMA_ALIGNMENT 4 /*-------------------------------------------------------------------------*/ @@ -779,7 +780,8 @@ static irqreturn_t interrupt_transfer(struct driver_data *drv_data) /* Read trailing bytes */ limit = loops_per_jiffy << 1; - while ((read(drv_data) == 0) && limit--); + while ((read(drv_data) == 0) && --limit) + cpu_relax(); if (limit == 0) dev_err(&drv_data->pdev->dev, @@ -1481,6 +1483,7 @@ static int __init spi_imx_probe(struct platform_device *pdev) master->bus_num = pdev->id; master->num_chipselect = platform_info->num_chipselect; + master->dma_alignment = DMA_ALIGNMENT; master->cleanup = cleanup; master->setup = setup; master->transfer = transfer; |