Use dma_addr_t to support 64-bit plaforms, which access beyond the default
32 bit address range.
Signed-off-by: Bao Truong <btru...@apm.com>
Signed-off-by: Feng Kan <f...@apm.com>
---
Changes:
V2: fixed GKH's comment regarding not mark up the comment after
code change.
drivers/usb/host/xhci-plat.c | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)
diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c
index 3d78b0c..f75764f 100644
--- a/drivers/usb/host/xhci-plat.c
+++ b/drivers/usb/host/xhci-plat.c
@@ -96,14 +96,18 @@ static int xhci_plat_probe(struct platform_device *pdev)
return ret;
}
- /* Initialize dma_mask and coherent_dma_mask to 32-bits */
- ret = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
+ /*
+ * Initialize dma_mask and coherent_dma_mask to valid DMA or bus
+ * address for the platform.
+ */
+ ret = dma_set_coherent_mask(&pdev->dev,
+ DMA_BIT_MASK(sizeof(dma_addr_t)*8));
if (ret)
return ret;
if (!pdev->dev.dma_mask)
pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
else
- dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
+ dma_set_mask(&pdev->dev, DMA_BIT_MASK(sizeof(dma_addr_t)*8));
hcd = usb_create_hcd(driver, &pdev->dev, dev_name(&pdev->dev));
if (!hcd)
--
1.9.1
--
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