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[Xen-devel] Re: [PATCH] acpiphp: assume device is in state D0 after powe
| To: | Ian Campbell <ian.campbell@xxxxxxxxxx> |
|---|---|
| Subject: | [Xen-devel] Re: [PATCH] acpiphp: assume device is in state D0 after powering on a slot. |
| From: | Jesse Barnes <jbarnes@xxxxxxxxxxxxxxxx> |
| Date: | Wed, 11 May 2011 09:14:05 -0700 |
| Cc: | linux-pci@xxxxxxxxxxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, Stefano Stabellini <Stefano.Stabellini@xxxxxxxxxxxxx> |
| Delivery-date: | Wed, 11 May 2011 09:14:59 -0700 |
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On Wed, 11 May 2011 17:00:32 +0100
Ian Campbell <ian.campbell@xxxxxxxxxx> wrote:
> Devices which do not support PCI configuration space based power
> management may not otherwise be enabled.
>
> Signed-off-by: Ian Campbell <ian.campbell@xxxxxxxxxx>
> ---
> drivers/pci/hotplug/acpiphp_glue.c | 7 +++++++
> 1 files changed, 7 insertions(+), 0 deletions(-)
>
> diff --git a/drivers/pci/hotplug/acpiphp_glue.c
> b/drivers/pci/hotplug/acpiphp_glue.c
> index 2f67e9b..a70fa89 100644
> --- a/drivers/pci/hotplug/acpiphp_glue.c
> +++ b/drivers/pci/hotplug/acpiphp_glue.c
> @@ -827,6 +827,13 @@ static int __ref enable_device(struct acpiphp_slot *slot)
> acpiphp_set_hpp_values(bus);
> acpiphp_set_acpi_region(slot);
> pci_enable_bridges(bus);
> +
> + list_for_each_entry(dev, &bus->devices, bus_list) {
> + /* Assume that newly added devices are powered on already. */
> + if (!dev->is_added)
> + dev->current_state = PCI_D0;
> + }
> +
> pci_bus_add_devices(bus);
>
> list_for_each_entry(func, &slot->funcs, sibling) {
applied to linux-next, thanks.
--
Jesse Barnes, Intel Open Source Technology Center
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