Commit b2d3c270 authored May 05, 2017 by Thomas Petazzoni Committed by Vinod Koul May 14, 2017

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: 19a340b1 ("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>

parent 9dd4f319

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;