X-Git-Url: http://git.monstr.eu/?p=linux-2.6-microblaze.git;a=blobdiff_plain;f=drivers%2Fpci%2Fcontroller%2Fdwc%2Fpcie-designware-host.c;h=8a84c005f32bdc6edac1638efb028108e32050d7;hp=99ef808a40a95d3503038340c7c62c1c45f2464f;hb=99e629f14b471d852d28ecf554093c4730ed0927;hpb=281f1f99cf3a761b45f611943721dfb1895c68a3

diff --git a/drivers/pci/controller/dwc/pcie-designware-host.c b/drivers/pci/controller/dwc/pcie-designware-host.c
index 99ef808a40a9..8a84c005f32b 100644
--- a/drivers/pci/controller/dwc/pcie-designware-host.c
+++ b/drivers/pci/controller/dwc/pcie-designware-host.c
@@ -396,6 +396,10 @@ int dw_pcie_host_init(struct pcie_port *pp)
 							    dw_chained_msi_isr,
 							    pp);
 
+			ret = dma_set_mask(pci->dev, DMA_BIT_MASK(32));
+			if (ret)
+				dev_warn(pci->dev, "Failed to set DMA mask to 32-bit. Devices with only 32-bit MSI support may not work properly\n");
+
 			pp->msi_data = dma_map_single_attrs(pci->dev, &pp->msi_msg,
 						      sizeof(pp->msi_msg),
 						      DMA_FROM_DEVICE,