diff options
| author |   Thomas Petazzoni <thomas.petazzoni@free-electrons.com> | 2017-05-05 11:57:50 +0200 |
|---|---|---|
| committer |   Vinod Koul <vinod.koul@intel.com> | 2017-05-14 18:24:44 +0530 |
| commit | b2d3c270f9f2fb82518ac500a9849c3aaf503852 (patch) | |
| tree | 114d95335455a17cc03696e41efcba0eebc374d7 /drivers/dma | |
| parent | dmaengine: mv_xor_v2: remove interrupt coalescing (diff) | |
| download | linux-dev-b2d3c270f9f2fb82518ac500a9849c3aaf503852.tar.xz linux-dev-b2d3c270f9f2fb82518ac500a9849c3aaf503852.zip | |
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.c | 4 |
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; |