diff options
| -rw-r--r-- | drivers/pci/controller/dwc/pcie-designware-host.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/pci/controller/dwc/pcie-designware-host.c b/drivers/pci/controller/dwc/pcie-designware-host.c index 99ef808a40a9..516b151e0ef3 100644 --- a/drivers/pci/controller/dwc/pcie-designware-host.c +++ b/drivers/pci/controller/dwc/pcie-designware-host.c @@ -396,6 +396,14 @@ 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, |