diff options
| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2013-06-27 13:37:21 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2013-10-31 14:48:51 +0000 |
| commit | 24353b8bb4ecfc7f751019ee599c89d5175e12a1 (patch) | |
| tree | 74288ff09a55423c5ee30c6ec22d438254fe82c3 /drivers/dma | |
| parent | 105f4ade6fa0fc41742c83fc929e7fdc5a095233 (diff) | |
| download | linux-24353b8bb4ecfc7f751019ee599c89d5175e12a1.tar.bz2 | |
DMA-API: dma: dw_dmac.c: convert to use dma_coerce_mask_and_coherent()
This code sequence:
if (!pdev->dev.dma_mask) {
pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
}
bypasses the architectures check on the DMA mask. It can be replaced
with dma_coerce_mask_and_coherent(), avoiding the direct initialization
of this mask.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'drivers/dma')
| -rw-r--r-- | drivers/dma/dw/platform.c | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/drivers/dma/dw/platform.c b/drivers/dma/dw/platform.c index e35d97590311..453822cc4f9d 100644 --- a/drivers/dma/dw/platform.c +++ b/drivers/dma/dw/platform.c @@ -191,11 +191,9 @@ static int dw_probe(struct platform_device *pdev) if (IS_ERR(chip->regs)) return PTR_ERR(chip->regs); - /* Apply default dma_mask if needed */ - if (!dev->dma_mask) { - dev->dma_mask = &dev->coherent_dma_mask; - dev->coherent_dma_mask = DMA_BIT_MASK(32); - } + err = dma_coerce_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(32)); + if (err) + return err; pdata = dev_get_platdata(dev); if (!pdata) |