linux-kernel - [PATCH v2 3/8] MFD:rtsx: Declare that the DMA address limitation is 32bit explicitly

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Message-ID: <7ba22b7e0e0be5a353cdfcfefbeff03a5be973c0.1356403281.git.wei_wang@realsil.com.cn>
Date:	Tue, 25 Dec 2012 10:43:09 +0800
From:	<wei_wang@...lsil.com.cn>
To:	<cjb@...top.org>, <sameo@...ux.intel.com>
CC:	<devel@...uxdriverproject.org>, <linux-kernel@...r.kernel.org>,
	<linux-mmc@...r.kernel.org>, <gregkh@...uxfoundation.org>,
	<arnd@...db.de>, <oakad@...oo.com>, <bp@...en8.de>,
	Wei WANG <wei_wang@...lsil.com.cn>
Subject: [PATCH v2 3/8] MFD:rtsx: Declare that the DMA address limitation is 32bit explicitly

From: Wei WANG <wei_wang@...lsil.com.cn>

Signed-off-by: Wei WANG <wei_wang@...lsil.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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