ARM: 7648/1: pci: Allow passing per-controller private data

In order to allow drivers to specify private data for each controller,
this commit adds a private_data field to the struct hw_pci. This field
is an array of nr_controllers pointers that will be used to initialize
the private_data field of the corresponding controller's pci_sys_data
structure.

Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

2 files changed, 4 insertions, 0 deletions

diff --git a/arch/arm/include/asm/mach/pci.h b/arch/arm/include/asm/mach/pci.h
index db9fedb57f2c..5cf2e979b4be 100644
--- a/arch/arm/include/asm/mach/pci.h
+++ b/arch/arm/include/asm/mach/pci.h
@@ -23,6 +23,7 @@ struct hw_pci {
 #endif
         struct pci_ops  *ops;
         int             nr_controllers;
+        void            **private_data;
         int             (*setup)(int nr, struct pci_sys_data *);
         struct pci_bus *(*scan)(int nr, struct pci_sys_data *);
         void            (*preinit)(void);
diff --git a/arch/arm/kernel/bios32.c b/arch/arm/kernel/bios32.c
index da7b0c99f296..a1f73b502ef0 100644
--- a/arch/arm/kernel/bios32.c
+++ b/arch/arm/kernel/bios32.c
@@ -464,6 +464,9 @@ static void pcibios_init_hw(struct hw_pci *hw, struct list_head *head)
                 sys->map_irq = hw->map_irq;
                 INIT_LIST_HEAD(&sys->resources);
 
+                if (hw->private_data)
+                        sys->private_data = hw->private_data[nr];
+
                 ret = hw->setup(nr, sys);
 
                 if (ret > 0) {