[PATCH] usb:host:xhci-plat: 64-bit dma addressing support

[Feng Kan]

Use dma_addr_t to support 64-bit plaforms, which access beyond 32 bit
address range.

Signed-off-by: Bao Truong <btruong@xxxxxxx>
Signed-off-by: Feng Kan <fkan@xxxxxxx>
---
 drivers/usb/host/xhci-plat.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c
index 01d1862..8cf83f0 100644
--- a/drivers/usb/host/xhci-plat.c
+++ b/drivers/usb/host/xhci-plat.c
@@ -97,13 +97,14 @@ static int xhci_plat_probe(struct platform_device *pdev)
 	}
 
 	/* Initialize dma_mask and coherent_dma_mask to 32-bits */
-	ret = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
+	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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