Update Linux to v5.10.109

Sourced from [1]

[1] https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-5.10.109.tar.xz

Change-Id: I19bca9fc6762d4e63bcf3e4cba88bbe560d9c76c
Signed-off-by: Olivier Deprez <olivier.deprez@arm.com>
diff --git a/drivers/pci/controller/pci-host-common.c b/drivers/pci/controller/pci-host-common.c
index c8cb9c5..6ce34a1 100644
--- a/drivers/pci/controller/pci-host-common.c
+++ b/drivers/pci/controller/pci-host-common.c
@@ -8,7 +8,9 @@
  */
 
 #include <linux/kernel.h>
+#include <linux/module.h>
 #include <linux/of_address.h>
+#include <linux/of_device.h>
 #include <linux/of_pci.h>
 #include <linux/pci-ecam.h>
 #include <linux/platform_device.h>
@@ -19,49 +21,44 @@
 }
 
 static struct pci_config_window *gen_pci_init(struct device *dev,
-		struct list_head *resources, struct pci_ecam_ops *ops)
+		struct pci_host_bridge *bridge, const struct pci_ecam_ops *ops)
 {
 	int err;
 	struct resource cfgres;
-	struct resource *bus_range = NULL;
+	struct resource_entry *bus;
 	struct pci_config_window *cfg;
 
-	/* Parse our PCI ranges and request their resources */
-	err = pci_parse_request_of_pci_ranges(dev, resources, &bus_range);
-	if (err)
-		return ERR_PTR(err);
-
 	err = of_address_to_resource(dev->of_node, 0, &cfgres);
 	if (err) {
 		dev_err(dev, "missing \"reg\" property\n");
-		goto err_out;
+		return ERR_PTR(err);
 	}
 
-	cfg = pci_ecam_create(dev, &cfgres, bus_range, ops);
-	if (IS_ERR(cfg)) {
-		err = PTR_ERR(cfg);
-		goto err_out;
-	}
+	bus = resource_list_first_type(&bridge->windows, IORESOURCE_BUS);
+	if (!bus)
+		return ERR_PTR(-ENODEV);
+
+	cfg = pci_ecam_create(dev, &cfgres, bus->res, ops);
+	if (IS_ERR(cfg))
+		return cfg;
 
 	err = devm_add_action_or_reset(dev, gen_pci_unmap_cfg, cfg);
-	if (err) {
-		goto err_out;
-	}
-	return cfg;
+	if (err)
+		return ERR_PTR(err);
 
-err_out:
-	pci_free_resource_list(resources);
-	return ERR_PTR(err);
+	return cfg;
 }
 
-int pci_host_common_probe(struct platform_device *pdev,
-			  struct pci_ecam_ops *ops)
+int pci_host_common_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
 	struct pci_host_bridge *bridge;
 	struct pci_config_window *cfg;
-	struct list_head resources;
-	int ret;
+	const struct pci_ecam_ops *ops;
+
+	ops = of_device_get_match_data(&pdev->dev);
+	if (!ops)
+		return -ENODEV;
 
 	bridge = devm_pci_alloc_host_bridge(dev, 0);
 	if (!bridge)
@@ -70,7 +67,7 @@
 	of_pci_check_probe_only();
 
 	/* Parse and map our Configuration Space windows */
-	cfg = gen_pci_init(dev, &resources, ops);
+	cfg = gen_pci_init(dev, bridge, ops);
 	if (IS_ERR(cfg))
 		return PTR_ERR(cfg);
 
@@ -78,32 +75,26 @@
 	if (!pci_has_flag(PCI_PROBE_ONLY))
 		pci_add_flags(PCI_REASSIGN_ALL_BUS);
 
-	list_splice_init(&resources, &bridge->windows);
-	bridge->dev.parent = dev;
 	bridge->sysdata = cfg;
-	bridge->busnr = cfg->busr.start;
-	bridge->ops = &ops->pci_ops;
-	bridge->map_irq = of_irq_parse_and_map_pci;
-	bridge->swizzle_irq = pci_common_swizzle;
+	bridge->ops = (struct pci_ops *)&ops->pci_ops;
 
-	ret = pci_host_probe(bridge);
-	if (ret < 0) {
-		pci_free_resource_list(&resources);
-		return ret;
-	}
+	platform_set_drvdata(pdev, bridge);
 
-	platform_set_drvdata(pdev, bridge->bus);
-	return 0;
+	return pci_host_probe(bridge);
 }
+EXPORT_SYMBOL_GPL(pci_host_common_probe);
 
 int pci_host_common_remove(struct platform_device *pdev)
 {
-	struct pci_bus *bus = platform_get_drvdata(pdev);
+	struct pci_host_bridge *bridge = platform_get_drvdata(pdev);
 
 	pci_lock_rescan_remove();
-	pci_stop_root_bus(bus);
-	pci_remove_root_bus(bus);
+	pci_stop_root_bus(bridge->bus);
+	pci_remove_root_bus(bridge->bus);
 	pci_unlock_rescan_remove();
 
 	return 0;
 }
+EXPORT_SYMBOL_GPL(pci_host_common_remove);
+
+MODULE_LICENSE("GPL v2");