Messages in this thread Patch in this message | | | From | Feng Kan <> | Subject | [PATCH] usb:host:xhci-plat: 64-bit dma addressing support | Date | Mon, 3 Nov 2014 17:59:28 -0800 |
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Use dma_addr_t to support 64-bit plaforms, which access beyond 32 bit address range.
Signed-off-by: Bao Truong <btruong@apm.com> Signed-off-by: Feng Kan <fkan@apm.com> --- 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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