[PATCH v7 4/9] PCI: mediatek: Convert to use pci_host_probe()

honghui.zhang
2018-10-15T05:44:42Z

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>
---
drivers/pci/controller/pcie-mediatek.c | 37 ++++++++--------------------------
1 file changed, 8 insertions(+), 29 deletions(-)

diff --git a/drivers/pci/controller/pcie-mediatek.c b/drivers/pci/controller/pcie-mediatek.c
index 59fdb60..ead6005 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;

--
2.6.4