From: Wei WANG <wei_wang@realsil.com.cn>
Date: Tue, 29 Jan 2013 07:21:34 +0000 (+0800)
Subject: mfd: rtsx: Declare that the DMA address limitation is 32bit explicitly
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=f84ef04227d8983c8f76ac0f5cf8b0a15e0c67af;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

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

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

Signed-off-by: Wei WANG <wei_wang@realsil.com.cn>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---

diff --git a/drivers/mfd/rtsx_pcr.c b/drivers/mfd/rtsx_pcr.c
index c021ce3df955..b2cfd2ed616c 100644
--- a/drivers/mfd/rtsx_pcr.c
+++ b/drivers/mfd/rtsx_pcr.c
@@ -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;