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mfd: rtsx: Declare that the DMA address limitation is 32bit explicitly

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Realtek PCIe card reader only supports 32bit DMA.
This declaration can improve the readability.

Signed-off-by: Wei WANG <[email protected]>
Signed-off-by: Samuel Ortiz <[email protected]>
This commit is contained in:
Wei WANG 2013-01-29 15:21:34 +08:00 • committed by Samuel Ortiz
commit f84ef04227
1 changed files with 4 additions and 0 deletions
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4
drivers/mfd/rtsx_pcr.c
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@ -1029,6 +1029,10 @@ static int rtsx_pci_probe(struct pci_dev *pcidev,
pci_name(pcidev), (int)pcidev->vendor, (int)pcidev->device,
(int)pcidev->revision);
ret = pci_set_dma_mask(pcidev, DMA_BIT_MASK(32));
if (ret < 0)
return ret;
ret = pci_enable_device(pcidev);
if (ret)
return ret;