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Subject[PATCH v3 3/8] MFD:rtsx: Declare that the DMA address limitation is 32bit explicitly
Date
From: Wei WANG <wei_wang@realsil.com.cn>

Realtek PCIe card reader only supports 32bit DMA

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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