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Commit 1f67d28d authored by Thomas Petazzoni's avatar Thomas Petazzoni Committed by Greg Kroah-Hartman
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dmaengine: mv_xor_v2: set DMA mask to 40 bits 



commit b2d3c270f9f2fb82518ac500a9849c3aaf503852 upstream.

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: 19a340b1 ("dmaengine: mv_xor_v2: new driver")
Signed-off-by: default avatarThomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: default avatarVinod Koul <vinod.koul@intel.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent eb5afaba

drivers/dma/mv_xor_v2.c

+4 −0
Original line number Diff line number Diff line
@@ -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;