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    Subject[PATCH v2 5/5] PCI: keystone: Set DMA mask and coherent DMA mask
    Date
    Set DMA mask and coherent DMA mask such to indicate the device
    can address the entire address space (32-bit in the case of
    K2G and 48-bit in the case of AM654).

    Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
    ---
    drivers/pci/controller/dwc/pci-keystone.c | 5 +++++
    1 file changed, 5 insertions(+)

    diff --git a/drivers/pci/controller/dwc/pci-keystone.c b/drivers/pci/controller/dwc/pci-keystone.c
    index 73e6626a0d8f..80dbab267f7b 100644
    --- a/drivers/pci/controller/dwc/pci-keystone.c
    +++ b/drivers/pci/controller/dwc/pci-keystone.c
    @@ -1224,6 +1224,11 @@ static int __init ks_pcie_probe(struct platform_device *pdev)
    return ret;
    }

    + if (dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(48))) {
    + dev_err(dev, "Cannot set DMA mask\n");
    + return -EINVAL;
    + }
    +
    ret = of_property_read_u32(np, "num-lanes", &num_lanes);
    if (ret)
    num_lanes = 1;
    --
    2.17.1
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