microblaze/PCI: Remove unused PCI bus scan if configured as a host

This routine is meant to be used early during boot, when the
PCI bus numbers have not yet been assigned, and you need to
issue PCI config cycles to an OF device.

It could also be used to "fix" RTAS config cycles if you want
to set pci_assign_all_buses to 1 and still use RTAS for PCI
config cycles.
Signed-off-by: Thippeswamy Havalige <thippeswamy.havalige@amd.com>
Link: https://lore.kernel.org/r/20221025065214.4663-4-thippeswamy.havalige@amd.comSigned-off-by: Michal Simek <michal.simek@amd.com>

arch/microblaze/include/asm/pci-bridge.h

@@ -107,10 +107,6 @@ extern void setup_indirect_pci(struct pci_controller *hose,
 			       resource_size_t cfg_addr,
 			       resource_size_t cfg_data, u32 flags);
 
-/* Get the PCI host controller for an OF device */
-extern struct pci_controller *pci_find_hose_for_OF_device(
-			struct device_node *node);
-
 /* Fill up host controller resources from the OF node */
 extern void pci_process_bridge_OF_ranges(struct pci_controller *hose,
 			struct device_node *dev, int primary);

arch/microblaze/pci/pci-common.c

@@ -122,25 +122,6 @@ unsigned long pci_address_to_pio(phys_addr_t address)
 }
 EXPORT_SYMBOL_GPL(pci_address_to_pio);
 
-/* This routine is meant to be used early during boot, when the
- * PCI bus numbers have not yet been assigned, and you need to
- * issue PCI config cycles to an OF device.
- * It could also be used to "fix" RTAS config cycles if you want
- * to set pci_assign_all_buses to 1 and still use RTAS for PCI
- * config cycles.
- */
-struct pci_controller *pci_find_hose_for_OF_device(struct device_node *node)
-{
-	while (node) {
-		struct pci_controller *hose, *tmp;
-		list_for_each_entry_safe(hose, tmp, &hose_list, list_node)
-			if (hose->dn == node)
-				return hose;
-		node = node->parent;
-	}
-	return NULL;
-}
-
 void pcibios_set_master(struct pci_dev *dev)
 {
 	/* No special bus mastering setup handling */