PCI: mediatek: Convert to use pci_host_probe()

Part of mtk_pcie_register_host() is an open-coded version of
pci_host_probe(). So instead of duplicating this code, use
pci_host_probe() directly and remove mtk_pcie_register_host().

Signed-off-by: Honghui Zhang <honghui.zhang@mediatek.com>
[lorenzo.pieralisi@arm.com: commit log changes]
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Ryder Lee <ryder.lee@mediatek.com>

1 files changed, 8 insertions, 29 deletions

diff --git a/drivers/pci/controller/pcie-mediatek.c b/drivers/pci/controller/pcie-mediatek.c
index 547e4c76edbb..6f0849049041 100644
--- a/drivers/pci/controller/pcie-mediatek.c
+++ b/drivers/pci/controller/pcie-mediatek.c
@@ -1121,34 +1121,6 @@ static int mtk_pcie_request_resources(struct mtk_pcie *pcie)
         return 0;
 }
 
-static int mtk_pcie_register_host(struct pci_host_bridge *host)
-{
-        struct mtk_pcie *pcie = pci_host_bridge_priv(host);
-        struct pci_bus *child;
-        int err;
-
-        host->busnr = pcie->busn.start;
-        host->dev.parent = pcie->dev;
-        host->ops = pcie->soc->ops;
-        host->map_irq = of_irq_parse_and_map_pci;
-        host->swizzle_irq = pci_common_swizzle;
-        host->sysdata = pcie;
-
-        err = pci_scan_root_bus_bridge(host);
-        if (err < 0)
-                return err;
-
-        pci_bus_size_bridges(host->bus);
-        pci_bus_assign_resources(host->bus);
-
-        list_for_each_entry(child, &host->bus->children, node)
-                pcie_bus_configure_settings(child);
-
-        pci_bus_add_devices(host->bus);
-
-        return 0;
-}
-
 static int mtk_pcie_probe(struct platform_device *pdev)
 {
         struct device *dev = &pdev->dev;
@@ -1175,7 +1147,14 @@ static int mtk_pcie_probe(struct platform_device *pdev)
         if (err)
                 goto put_resources;
 
-        err = mtk_pcie_register_host(host);
+        host->busnr = pcie->busn.start;
+        host->dev.parent = pcie->dev;
+        host->ops = pcie->soc->ops;
+        host->map_irq = of_irq_parse_and_map_pci;
+        host->swizzle_irq = pci_common_swizzle;
+        host->sysdata = pcie;
+
+        err = pci_host_probe(host);
         if (err)
                 goto put_resources;