ARM: PCI: provide a default bus scan implementation

Most PCI implementations perform simple root bus scanning.  Rather than
having each group of platforms provide a duplicated bus scan function,
provide the PCI configuration ops structure via the hw_pci structure,
and call the root bus scanning function from core ARM PCI code.

Acked-by: Krzysztof Hałasa <khc@pm.waw.pl>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

5 files changed, 5 insertions, 10 deletions

diff --git a/arch/arm/mach-footbridge/cats-pci.c b/arch/arm/mach-footbridge/cats-pci.c
index dc13c873ff53..5cec2567c9c5 100644
--- a/arch/arm/mach-footbridge/cats-pci.c
+++ b/arch/arm/mach-footbridge/cats-pci.c
@@ -47,8 +47,8 @@ static struct hw_pci cats_pci __initdata = {
         .swizzle                = cats_no_swizzle,
         .map_irq                = cats_map_irq,
         .nr_controllers         = 1,
+        .ops                    = &dc21285_ops,
         .setup                  = dc21285_setup,
-        .scan                   = dc21285_scan_bus,
         .preinit                = dc21285_preinit,
         .postinit               = dc21285_postinit,
 };
diff --git a/arch/arm/mach-footbridge/dc21285.c b/arch/arm/mach-footbridge/dc21285.c
index e17e11de4f5e..9d62e3381024 100644
--- a/arch/arm/mach-footbridge/dc21285.c
+++ b/arch/arm/mach-footbridge/dc21285.c
@@ -129,7 +129,7 @@ dc21285_write_config(struct pci_bus *bus, unsigned int devfn, int where,
         return PCIBIOS_SUCCESSFUL;
 }
 
-static struct pci_ops dc21285_ops = {
+struct pci_ops dc21285_ops = {
         .read   = dc21285_read_config,
         .write  = dc21285_write_config,
 };
@@ -284,11 +284,6 @@ int __init dc21285_setup(int nr, struct pci_sys_data *sys)
         return 1;
 }
 
-struct pci_bus * __init dc21285_scan_bus(int nr, struct pci_sys_data *sys)
-{
-        return pci_scan_root_bus(NULL, 0, &dc21285_ops, sys, &sys->resources);
-}
-
 #define dc21285_request_irq(_a, _b, _c, _d, _e) \
         WARN_ON(request_irq(_a, _b, _c, _d, _e) < 0)
 
diff --git a/arch/arm/mach-footbridge/ebsa285-pci.c b/arch/arm/mach-footbridge/ebsa285-pci.c
index a5bed6e017d7..fd12d8a36dc5 100644
--- a/arch/arm/mach-footbridge/ebsa285-pci.c
+++ b/arch/arm/mach-footbridge/ebsa285-pci.c
@@ -31,8 +31,8 @@ static int __init ebsa285_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 static struct hw_pci ebsa285_pci __initdata = {
         .map_irq                = ebsa285_map_irq,
         .nr_controllers         = 1,
+        .ops                    = &dc21285_ops,
         .setup                  = dc21285_setup,
-        .scan                   = dc21285_scan_bus,
         .preinit                = dc21285_preinit,
         .postinit               = dc21285_postinit,
 };
diff --git a/arch/arm/mach-footbridge/netwinder-pci.c b/arch/arm/mach-footbridge/netwinder-pci.c
index 3f66e894a31e..0fba5134e4fe 100644
--- a/arch/arm/mach-footbridge/netwinder-pci.c
+++ b/arch/arm/mach-footbridge/netwinder-pci.c
@@ -45,8 +45,8 @@ static int __init netwinder_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
 static struct hw_pci netwinder_pci __initdata = {
         .map_irq                = netwinder_map_irq,
         .nr_controllers         = 1,
+        .ops                    = &dc21285_ops,
         .setup                  = dc21285_setup,
-        .scan                   = dc21285_scan_bus,
         .preinit                = dc21285_preinit,
         .postinit               = dc21285_postinit,
 };
diff --git a/arch/arm/mach-footbridge/personal-pci.c b/arch/arm/mach-footbridge/personal-pci.c
index aeb651d914a6..5c9ee54613b2 100644
--- a/arch/arm/mach-footbridge/personal-pci.c
+++ b/arch/arm/mach-footbridge/personal-pci.c
@@ -41,8 +41,8 @@ static int __init personal_server_map_irq(const struct pci_dev *dev, u8 slot,
 static struct hw_pci personal_server_pci __initdata = {
         .map_irq                = personal_server_map_irq,
         .nr_controllers         = 1,
+        .ops                    = &dc21285_ops,
         .setup                  = dc21285_setup,
-        .scan                   = dc21285_scan_bus,
         .preinit                = dc21285_preinit,
         .postinit               = dc21285_postinit,
 };