add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/drivers/pci/controller/pcie-tango.c
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@@ -207,7 +207,7 @@
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 	return ret;
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 }
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-static struct pci_ecam_ops smp8759_ecam_ops = {
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+static const struct pci_ecam_ops smp8759_ecam_ops = {
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 	.bus_shift	= 20,
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 	.pci_ops	= {
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 		.map_bus	= pci_ecam_map_bus,
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@@ -273,10 +273,8 @@
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 		writel_relaxed(0, pcie->base + SMP8759_ENABLE + offset);
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 	virq = platform_get_irq(pdev, 1);
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-	if (virq <= 0) {
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-		dev_err(dev, "Failed to map IRQ\n");
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-		return -ENXIO;
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-	}
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+	if (virq < 0)
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+		return virq;
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 	irq_dom = irq_domain_create_linear(fwnode, MSI_MAX, &dom_ops, pcie);
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 	if (!irq_dom) {
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@@ -295,11 +293,14 @@
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 	spin_lock_init(&pcie->used_msi_lock);
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 	irq_set_chained_handler_and_data(virq, tango_msi_isr, pcie);
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-	return pci_host_common_probe(pdev, &smp8759_ecam_ops);
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+	return pci_host_common_probe(pdev);
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 }
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 static const struct of_device_id tango_pcie_ids[] = {
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-	{ .compatible = "sigma,smp8759-pcie" },
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+	{
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+		.compatible = "sigma,smp8759-pcie",
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+		.data = &smp8759_ecam_ops,
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+	},
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 	{ },
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 };
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