diff options
| -rw-r--r-- | drivers/pci/controller/pcie-mediatek.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/pci/controller/pcie-mediatek.c b/drivers/pci/controller/pcie-mediatek.c index 1477939ef38a..0d100f56cb88 100644 --- a/drivers/pci/controller/pcie-mediatek.c +++ b/drivers/pci/controller/pcie-mediatek.c @@ -337,6 +337,17 @@ static struct mtk_pcie_port *mtk_pcie_find_port(struct pci_bus *bus, { struct mtk_pcie *pcie = bus->sysdata; struct mtk_pcie_port *port; + struct pci_dev *dev = NULL; + + /* + * Walk the bus hierarchy to get the devfn value + * of the port in the root bus. + */ + while (bus && bus->number) { + dev = bus->self; + bus = dev->bus; + devfn = dev->devfn; + } list_for_each_entry(port, &pcie->ports, list) if (port->slot == PCI_SLOT(devfn)) |