powerpc/pci: Fold pcibios_setup_device() into pcibios_bus_add_device()

pcibios_bus_add_device() is the only caller of pcibios_setup_device().
Fold them together since there's no real reason to keep them separate.
Signed-off-by: Oliver O'Halloran <oohall@gmail.com>
Reviewed-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200110070207.439-2-oohall@gmail.com

arch/powerpc/kernel/pci-common.c

@@ -958,7 +958,7 @@ void pcibios_setup_bus_self(struct pci_bus *bus)
 		phb->controller_ops.dma_bus_setup(bus);
 }
 
-static void pcibios_setup_device(struct pci_dev *dev)
+void pcibios_bus_add_device(struct pci_dev *dev)
 {
 	struct pci_controller *phb;
 	/* Fixup NUMA node as it may not be setup yet by the generic
@@ -979,15 +979,9 @@ static void pcibios_setup_device(struct pci_dev *dev)
 	pci_read_irq_line(dev);
 	if (ppc_md.pci_irq_fixup)
 		ppc_md.pci_irq_fixup(dev);
-}
-
-void pcibios_bus_add_device(struct pci_dev *pdev)
-{
-	/* Perform platform-specific device setup */
-	pcibios_setup_device(pdev);
 
 	if (ppc_md.pcibios_bus_add_device)
-		ppc_md.pcibios_bus_add_device(pdev);
+		ppc_md.pcibios_bus_add_device(dev);
 }
 
 int pcibios_add_device(struct pci_dev *dev)