diff options
author | Kevin Hilman <khilman@linaro.org> | 2015-12-17 08:48:38 -0800 |
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committer | Kevin Hilman <khilman@linaro.org> | 2015-12-17 08:48:38 -0800 |
commit | 906d9eadd3b6698fa6ceb9bcdf41da6aa56d0a24 (patch) | |
tree | b258d06410e154ce58d9b0d16ffba0834ff2a1ac /drivers/pci/host/pci-xgene.c | |
parent | d3d3a134d75d28034b950bc0b6682ba0be976f37 (diff) | |
parent | 9f41e6b222c4a04c7b46068df82842a6188b4a57 (diff) |
Merge branch 'linux-linaro-lsk-v4.1' into linux-linaro-lsk-v4.1-rtlsk-v4.1-16.03-rtlsk-v4.1-16.02-rtlsk-v4.1-16.01-rtlsk-v4.1-15.12-rt
Diffstat (limited to 'drivers/pci/host/pci-xgene.c')
-rw-r--r-- | drivers/pci/host/pci-xgene.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/drivers/pci/host/pci-xgene.c b/drivers/pci/host/pci-xgene.c index ee082c0366ec..3e5a636c9a9a 100644 --- a/drivers/pci/host/pci-xgene.c +++ b/drivers/pci/host/pci-xgene.c @@ -468,6 +468,23 @@ static int xgene_pcie_setup(struct xgene_pcie_port *port, return 0; } +static int xgene_pcie_msi_enable(struct pci_bus *bus) +{ + struct device_node *msi_node; + + msi_node = of_parse_phandle(bus->dev.of_node, + "msi-parent", 0); + if (!msi_node) + return -ENODEV; + + bus->msi = of_pci_find_msi_chip_by_node(msi_node); + if (!bus->msi) + return -ENODEV; + + bus->msi->dev = &bus->dev; + return 0; +} + static int xgene_pcie_probe_bridge(struct platform_device *pdev) { struct device_node *dn = pdev->dev.of_node; @@ -504,6 +521,10 @@ static int xgene_pcie_probe_bridge(struct platform_device *pdev) if (!bus) return -ENOMEM; + if (IS_ENABLED(CONFIG_PCI_MSI)) + if (xgene_pcie_msi_enable(bus)) + dev_info(port->dev, "failed to enable MSI\n"); + pci_scan_child_bus(bus); pci_assign_unassigned_bus_resources(bus); pci_bus_add_devices(bus); |