Messages in this thread Patch in this message |  | | From | <> | Subject | [PATCH v4 3/8] MFD:rtsx: Declare that the DMA address limitation is 32bit explicitly | Date | Tue, 8 Jan 2013 17:57:24 +0800 |
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From: Wei WANG <wei_wang@realsil.com.cn>
Realtek PCIe card reader only supports 32bit DMA. This declaration can improve the readability
Signed-off-by: Wei WANG <wei_wang@realsil.com.cn> --- drivers/mfd/rtsx_pcr.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/drivers/mfd/rtsx_pcr.c b/drivers/mfd/rtsx_pcr.c index fa2c2bc..1dc64bb 100644 --- a/drivers/mfd/rtsx_pcr.c +++ b/drivers/mfd/rtsx_pcr.c @@ -1010,6 +1010,10 @@ static int __devinit 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; -- 1.7.9.5
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