On Fri, Sep 14, 2012 at 3:11 PM, Thierry Reding
<thierry.red...@avionic-design.de> wrote:
> 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.
I guess you aren't changing the design here because struct hw_pci
already includes "nr_controllers," but having nr_controllers and a
private_data[] array sounds like something that might make it hard to
hot-add a host bridge after boot.
> Signed-off-by: Thierry Reding <thierry.red...@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 26c511f..736cb8d 100644
> --- a/arch/arm/include/asm/mach/pci.h
> +++ b/arch/arm/include/asm/mach/pci.h
> @@ -21,6 +21,7 @@ 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 7288093..07a38d8 100644
> --- a/arch/arm/kernel/bios32.c
> +++ b/arch/arm/kernel/bios32.c
> @@ -442,6 +442,9 @@ static void __devinit 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) {
> --
> 1.7.12
>
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