[PATCH 3/7] MFD:rtsx: Declare that the DMA address limitation is 32bit explicitly

wei_wang at realsil.com.cn wei_wang at realsil.com.cn
Mon Dec 24 06:03:30 UTC 2012


From: Wei WANG <wei_wang at realsil.com.cn>

Signed-off-by: Wei WANG <wei_wang at 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..2ee6be5 100644
--- a/drivers/mfd/rtsx_pcr.c
+++ b/drivers/mfd/rtsx_pcr.c
@@ -1084,6 +1084,10 @@ static int __devinit rtsx_pci_probe(struct pci_dev *pcidev,
 	pci_set_master(pcidev);
 	synchronize_irq(pcr->irq);
 
+	ret = pci_set_dma_mask(pcidev, DMA_BIT_MASK(32));
+	if (ret < 0)
+		goto disable_irq;
+
 	ret = rtsx_pci_init_chip(pcr);
 	if (ret < 0)
 		goto disable_irq;
-- 
1.7.9.5




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