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DMA-API: dma: pl08x: add dma_set_mask_and_coherent() call 

The DMA API requires drivers to call the appropriate dma_set_mask()
functions before doing any DMA mapping.  Add this required call to
the AMBA PL08x driver.

Acked-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King 2013-06-27 10:29:32 +01:00
parent 446b2a9380
commit de1a241959
1 changed files with 5 additions and 0 deletions
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5
drivers/dma/amba-pl08x.c
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@ -2055,6 +2055,11 @@ static int pl08x_probe(struct amba_device *adev, const struct amba_id *id)
if (ret) if (ret)
return ret; return ret;
/* Ensure that we can do DMA */
ret = dma_set_mask_and_coherent(&adev->dev, DMA_BIT_MASK(32));
if (ret)
goto out_no_pl08x;
/* Create the driver state holder */ /* Create the driver state holder */
pl08x = kzalloc(sizeof(*pl08x), GFP_KERNEL); pl08x = kzalloc(sizeof(*pl08x), GFP_KERNEL);
if (!pl08x) { if (!pl08x) {