Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...

[cascardo/linux.git] / drivers / usb / host / uhci-platform.c

diff --git a/drivers/usb/host/uhci-platform.c b/drivers/usb/host/uhci-platform.c
index e478049..68ebf20 100644 (file)
--- a/drivers/usb/host/uhci-platform.c
+++ b/drivers/usb/host/uhci-platform.c
@@ -60,6 +60,7 @@ static const struct hc_driver uhci_platform_hc_driver = {
        .hub_control =          uhci_hub_control,
 };
 
+static u64 platform_uhci_dma_mask = DMA_BIT_MASK(32);
 
 static int __devinit uhci_hcd_platform_probe(struct platform_device *pdev)
 {
@@ -71,6 +72,14 @@ static int __devinit uhci_hcd_platform_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 = &platform_uhci_dma_mask;
+
        hcd = usb_create_hcd(&uhci_platform_hc_driver, &pdev->dev,
                        pdev->name);
        if (!hcd)