PCI: mediatek: Use bus->sysdata to get host private data

75983c6d1f38 ("PCI: mediatek: Add controller support for MT2712 and
MT7622") has put the mtk_pcie * into bus->sysdata.  Take advantage of that
to get the private data and simplify the code.

Signed-off-by: Honghui Zhang <honghui.zhang@mediatek.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Ryder Lee <ryder.lee@mediatek.com>

diff --git a/drivers/pci/host/pcie-mediatek.c b/drivers/pci/host/pcie-mediatek.c
index 946c056..acc2e28 100644 (file)
--- a/drivers/pci/host/pcie-mediatek.c
+++ b/drivers/pci/host/pcie-mediatek.c
@@ -511,8 +511,7 @@ static int mtk_pcie_setup_irq(struct mtk_pcie_port *port,
 static void __iomem *mtk_pcie_map_bus(struct pci_bus *bus,
                                      unsigned int devfn, int where)
 {
-       struct pci_host_bridge *host = pci_find_host_bridge(bus);
-       struct mtk_pcie *pcie = pci_host_bridge_priv(host);
+       struct mtk_pcie *pcie = bus->sysdata;
 
        writel(PCIE_CONF_ADDR(where, PCI_FUNC(devfn), PCI_SLOT(devfn),
                              bus->number), pcie->base + PCIE_CFG_ADDR);