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dmaengine: mv_xor_v2: set DMA mask to 40 bits 

The XORv2 engine on Armada 7K/8K can only access the first 40 bits of
the physical address space, so the DMA mask must be set accordingly.

Fixes: 19a340b1a8 ("dmaengine: mv_xor_v2: new driver")
Cc: <stable@vger.kernel.org>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
This commit is contained in:
Thomas Petazzoni 2017-05-05 11:57:50 +02:00 committed by Vinod Koul
parent 9dd4f319ba
commit b2d3c270f9
1 changed files with 4 additions and 0 deletions
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4
drivers/dma/mv_xor_v2.c
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@ -693,6 +693,10 @@ static int mv_xor_v2_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, xor_dev);
ret = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(40));
if (ret)
return ret;
xor_dev->clk = devm_clk_get(&pdev->dev, NULL);
if (IS_ERR(xor_dev->clk) && PTR_ERR(xor_dev->clk) == -EPROBE_DEFER)
return -EPROBE_DEFER;