diff options
| author | Thomas Petazzoni <thomas.petazzoni@free-electrons.com> | 2017-05-05 11:57:50 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-06-14 15:05:57 +0200 |
| commit | 1f67d28d2707dc1da24c7f94b0a80721ea89abac (patch) | |
| tree | 6f30b435bbc0b0330d1345eebfa4f2b5cea59cd9 /drivers/dma | |
| parent | eb5afaba617739df3fea2d6312cf493822d14934 (diff) | |
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: 19a340b1a820 ("dmaengine: mv_xor_v2: new driver")
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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; |