[PATCH v2 04/27] ARM: pci: Allow passing per-controller private data
Thomas Petazzoni
thomas.petazzoni at free-electrons.com
Mon Jan 28 13:56:13 EST 2013
From: Thierry Reding <thierry.reding at avionic-design.de>
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 at avionic-design.de>
---
arch/arm/include/asm/mach/pci.h | 1 +
arch/arm/kernel/bios32.c | 3 +++
2 files changed, 4 insertions(+)
diff --git a/arch/arm/include/asm/mach/pci.h b/arch/arm/include/asm/mach/pci.h
index db9fedb..5cf2e97 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 379cf32..5401645 100644
--- a/arch/arm/kernel/bios32.c
+++ b/arch/arm/kernel/bios32.c
@@ -464,6 +464,9 @@ static void __init 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) {
--
1.7.9.5
More information about the linux-arm-kernel
mailing list