diff options
| author |   Rob Herring <robh@kernel.org> | 2020-07-21 20:25:01 -0600 |
|---|---|---|
| committer |   Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> | 2020-07-23 11:20:50 +0100 |
| commit | 388637d972db7286f56f076596443971dd193292 (patch) | |
| tree | 282e54f3677592593f1440f64d817a44da035772 /drivers/pci/controller/mobiveil/pcie-mobiveil-host.c | |
| parent | PCI: designware: Use pci_is_root_bus() to check if bus is root bus (diff) | |
| download | wireguard-linux-388637d972db7286f56f076596443971dd193292.tar.xz wireguard-linux-388637d972db7286f56f076596443971dd193292.zip | |
PCI: mobiveil: Use pci_is_root_bus() to check if bus is root bus
Use pci_is_root_bus() rather than tracking the root bus number to
determine if the bus is the root bus or not. This removes storing
duplicated data as well as the need for the host bridge driver to have
to care about the bus numbers in most cases.
Link: https://lore.kernel.org/r/20200722022514.1283916-7-robh@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Cc: Karthikeyan Mitran <m.karthikeyan@mobiveil.co.in>
Cc: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'drivers/pci/controller/mobiveil/pcie-mobiveil-host.c')
| -rw-r--r-- | drivers/pci/controller/mobiveil/pcie-mobiveil-host.c | 10 |
1 files changed, 3 insertions, 7 deletions
diff --git a/drivers/pci/controller/mobiveil/pcie-mobiveil-host.c b/drivers/pci/controller/mobiveil/pcie-mobiveil-host.c index 705542b4bd21..7250b84a7efe 100644 --- a/drivers/pci/controller/mobiveil/pcie-mobiveil-host.c +++ b/drivers/pci/controller/mobiveil/pcie-mobiveil-host.c @@ -29,18 +29,15 @@ static bool mobiveil_pcie_valid_device(struct pci_bus *bus, unsigned int devfn) { - struct mobiveil_pcie *pcie = bus->sysdata; - struct mobiveil_root_port *rp = &pcie->rp; - /* Only one device down on each root port */ - if ((bus->number == rp->root_bus_nr) && (devfn > 0)) + if (pci_is_root_bus(bus) && (devfn > 0)) return false; /* * Do not read more than one device on the bus directly * attached to RC */ - if ((bus->primary == rp->root_bus_nr) && (PCI_SLOT(devfn) > 0)) + if ((bus->primary == to_pci_host_bridge(bus->bridge)->busnr) && (PCI_SLOT(devfn) > 0)) return false; return true; @@ -61,7 +58,7 @@ static void __iomem *mobiveil_pcie_map_bus(struct pci_bus *bus, return NULL; /* RC config access */ - if (bus->number == rp->root_bus_nr) + if (pci_is_root_bus(bus)) return pcie->csr_axi_slave_base + where; /* @@ -606,7 +603,6 @@ int mobiveil_pcie_host_probe(struct mobiveil_pcie *pcie) /* Initialize bridge */ bridge->sysdata = pcie; - bridge->busnr = rp->root_bus_nr; bridge->ops = &mobiveil_pcie_ops; bridge->map_irq = of_irq_parse_and_map_pci; bridge->swizzle_irq = pci_common_swizzle; |