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authorThomas Petazzoni <thomas.petazzoni@free-electrons.com>2017-05-05 11:57:50 +0200
committerVinod Koul <vinod.koul@intel.com>2017-05-14 18:24:44 +0530
commitb2d3c270f9f2fb82518ac500a9849c3aaf503852 (patch)
tree114d95335455a17cc03696e41efcba0eebc374d7 /drivers/dma
parent9dd4f319bac25334a869d9276b19eac9e478fd33 (diff)
downloadlinux-b2d3c270f9f2fb82518ac500a9849c3aaf503852.tar.bz2
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: 19a340b1a820 ("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>
Diffstat (limited to 'drivers/dma')
-rw-r--r--drivers/dma/mv_xor_v2.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/dma/mv_xor_v2.c b/drivers/dma/mv_xor_v2.c
index b133fe29d788..f3e211f8f6c5 100644
--- a/drivers/dma/mv_xor_v2.c
+++ b/drivers/dma/mv_xor_v2.c
@@ -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;