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path: root/drivers/usb/host/ehci-vt8500.c
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Diffstat (limited to 'drivers/usb/host/ehci-vt8500.c')
-rw-r--r--drivers/usb/host/ehci-vt8500.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/usb/host/ehci-vt8500.c b/drivers/usb/host/ehci-vt8500.c
index 96722bf..d3c9a3e 100644
--- a/drivers/usb/host/ehci-vt8500.c
+++ b/drivers/usb/host/ehci-vt8500.c
@@ -85,6 +85,8 @@ static const struct hc_driver vt8500_ehci_hc_driver = {
.clear_tt_buffer_complete = ehci_clear_tt_buffer_complete,
};
+static u64 vt8500_ehci_dma_mask = DMA_BIT_MASK(32);
+
static int vt8500_ehci_drv_probe(struct platform_device *pdev)
{
struct usb_hcd *hcd;
@@ -95,6 +97,14 @@ static int vt8500_ehci_drv_probe(struct platform_device *pdev)
if (usb_disabled())
return -ENODEV;
+ /*
+ * Right now device-tree probed devices don't get dma_mask set.
+ * Since shared usb code relies on it, set it here for now.
+ * Once we have dma capability bindings this can go away.
+ */
+ if (!pdev->dev.dma_mask)
+ pdev->dev.dma_mask = &vt8500_ehci_dma_mask;
+
if (pdev->resource[1].flags != IORESOURCE_IRQ) {
pr_debug("resource[1] is not IORESOURCE_IRQ");
return -ENOMEM;
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