res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
xgene_msi->msi_regs = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(xgene_msi->msi_regs)) {
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
xgene_msi->msi_regs = devm_ioremap_resource(&pdev->dev, res);
if (IS_ERR(xgene_msi->msi_regs)) {