PCI/MSI: xgene: Remove msi_controller assignment

After 8d63bc7beaee ("PCI/MSI: pci-xgene-msi: Get rid of struct
msi_controller"), it is no longer required to assign msi_controller for
X-Gene PCIe host bridge to support MSI.

Remove this unnecessary code.  This also avoids a warning message ("failed
to enable MSI") during boot.

[bhelgaas: changelog]
Signed-off-by: Duc Dang <dhdang@apm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Cc: Tanmay Inamdar <tinamdar@apm.com>

diff --git a/drivers/pci/host/pci-xgene.c b/drivers/pci/host/pci-xgene.c
index 0236ab9d5720133b57536c916591aab580157b28..ae00ce22d5a6eb2c7c2263f13a3fe0113c45da27 100644 (file)
--- a/drivers/pci/host/pci-xgene.c
+++ b/drivers/pci/host/pci-xgene.c
@@ -509,24 +509,6 @@ 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;
-
-       of_node_put(msi_node);
-       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;
@@ -567,10 +549,6 @@ 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);