PCI: rcar: Reuse generic pci_parse_request_of_pci_ranges() function

The non-functional change removes a custom function to parse and
allocate PCI resources in favour of pci_parse_request_of_pci_ranges().

Signed-off-by: Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>

diff --git a/drivers/pci/host/pcie-rcar.c b/drivers/pci/host/pcie-rcar.c
index 84e68ce..8d16156 100644 (file)
--- a/drivers/pci/host/pcie-rcar.c
+++ b/drivers/pci/host/pcie-rcar.c
@@ -1081,44 +1081,6 @@ static const struct of_device_id rcar_pcie_of_match[] = {
        {},
 };
 
-static int rcar_pcie_parse_request_of_pci_ranges(struct rcar_pcie *pci)
-{
-       int err;
-       struct device *dev = pci->dev;
-       struct device_node *np = dev->of_node;
-       resource_size_t iobase;
-       struct resource_entry *win, *tmp;
-
-       err = of_pci_get_host_bridge_resources(np, 0, 0xff, &pci->resources,
-                                              &iobase);
-       if (err)
-               return err;
-
-       err = devm_request_pci_bus_resources(dev, &pci->resources);
-       if (err)
-               goto out_release_res;
-
-       resource_list_for_each_entry_safe(win, tmp, &pci->resources) {
-               struct resource *res = win->res;
-
-               if (resource_type(res) == IORESOURCE_IO) {
-                       err = pci_remap_iospace(res, iobase);
-                       if (err) {
-                               dev_warn(dev, "error %d: failed to map resource %pR\n",
-                                        err, res);
-
-                               resource_list_destroy_entry(win);
-                       }
-               }
-       }
-
-       return 0;
-
-out_release_res:
-       pci_free_resource_list(&pci->resources);
-       return err;
-}
-
 static int rcar_pcie_probe(struct platform_device *pdev)
 {
        struct device *dev = &pdev->dev;
@@ -1136,9 +1098,7 @@ static int rcar_pcie_probe(struct platform_device *pdev)
 
        pcie->dev = dev;
 
-       INIT_LIST_HEAD(&pcie->resources);
-
-       err = rcar_pcie_parse_request_of_pci_ranges(pcie);
+       err = pci_parse_request_of_pci_ranges(dev, &pcie->resources, NULL);
        if (err)
                goto err_free_bridge;