Merge branch 'pci/host-dra7xx' into next

* pci/host-dra7xx:
  PCI: dra7xx: Fix platform_get_irq() error handling
  PCI: dra7xx: Propagate platform_get_irq() errors in dra7xx_pcie_probe()
  PCI: dra7xx: Use PCI_NUM_INTX

drivers/pci/dwc/pci-dra7xx.c

@@ -240,7 +240,7 @@ static int dra7xx_pcie_init_irq_domain(struct pcie_port *pp)
 		return -ENODEV;
 	}
 
-	dra7xx->irq_domain = irq_domain_add_linear(pcie_intc_node, 4,
+	dra7xx->irq_domain = irq_domain_add_linear(pcie_intc_node, PCI_NUM_INTX,
 						   &intx_domain_ops, pp);
 	if (!dra7xx->irq_domain) {
 		dev_err(dev, "Failed to get a INTx IRQ domain\n");
@@ -437,7 +437,7 @@ static int __init dra7xx_add_pcie_port(struct dra7xx_pcie *dra7xx,
 	pp->irq = platform_get_irq(pdev, 1);
 	if (pp->irq < 0) {
 		dev_err(dev, "missing IRQ resource\n");
-		return -EINVAL;
+		return pp->irq;
 	}
 
 	ret = devm_request_irq(dev, pp->irq, dra7xx_pcie_msi_irq_handler,
@@ -618,8 +618,8 @@ static int __init dra7xx_pcie_probe(struct platform_device *pdev)
 
 	irq = platform_get_irq(pdev, 0);
 	if (irq < 0) {
-		dev_err(dev, "missing IRQ resource\n");
-		return -EINVAL;
+		dev_err(dev, "missing IRQ resource: %d\n", irq);
+		return irq;
 	}
 
 	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "ti_conf");