[PATCH RESEND 4/6] pci: allow to set bus number on register_pci_controller

[Sebastian Hesselbarth <sebastian.hesselbarth@xxxxxxxxx>]

Currently, all PCI controllers are registered with struct pci_bus
number set to zero. Allow to set the bus number before registering
the controller and scan the bus.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@xxxxxxxxx>
---
To: barebox@xxxxxxxxxxxxxxxxxxx
To: Sebastian Hesselbarth <sebastian.hesselbarth@xxxxxxxxx>
Cc: Antony Pavlov <antonynpavlov@xxxxxxxxx>
Cc: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@xxxxxxxxxxxx>
Cc: Thomas Petazzoni <thomas.petazzoni@xxxxxxxxxxxxxxxxxx>
Cc: Ezequiel Garcia <ezequiel.garcia@xxxxxxxxxxxxxxxxxx>
---
 arch/mips/mach-malta/pci.c | 2 +-
 drivers/pci/pci.c          | 3 ++-
 include/linux/pci.h        | 2 +-
 3 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/arch/mips/mach-malta/pci.c b/arch/mips/mach-malta/pci.c
index 90351758e06d..47bfb4cc0833 100644
--- a/arch/mips/mach-malta/pci.c
+++ b/arch/mips/mach-malta/pci.c
@@ -229,7 +229,7 @@ static int pcibios_init(void)
 		GT_WRITE(GT_PCI0IOREMAP_OFS, map);
 	}
 
-	register_pci_controller(&gt64120_controller);
+	register_pci_controller(&gt64120_controller, 0);
 
 	return 0;
 }
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index b30cdd96f8ca..f755d13e14ee 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -27,7 +27,7 @@ static struct pci_bus *pci_alloc_bus(void)
 	return b;
 }
 
-void register_pci_controller(struct pci_controller *hose)
+void register_pci_controller(struct pci_controller *hose, int num)
 {
 	struct pci_bus *bus;
 
@@ -39,6 +39,7 @@ void register_pci_controller(struct pci_controller *hose)
 	bus->ops = hose->pci_ops;
 	bus->resource[0] = hose->mem_resource;
 	bus->resource[1] = hose->io_resource;
+	bus->number = num;
 	bus->sysdata = hose;
 
 	pci_scan_bus(bus);
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 6caed01c9939..c044225c3ecb 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -246,7 +246,7 @@ int pci_register_device(struct pci_dev *pdev);
 extern struct list_head pci_root_buses; /* list of all known PCI buses */
 
 extern unsigned int pci_scan_bus(struct pci_bus *bus);
-extern void register_pci_controller(struct pci_controller *hose);
+extern void register_pci_controller(struct pci_controller *hose, int num);
 
 int pci_bus_read_config_byte(struct pci_bus *bus, unsigned int devfn,
 			     int where, u8 *val);
-- 
2.0.0


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