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SubjectRe: [RFC 2/3] PCI/PM: Make PCI devices notified when its power resource turned on
Date
On Monday, September 17, 2012, Huang Ying wrote:
> A set of power resources may be shared by multiple devices. When all
> devices share one set of power resources is put into D3_COLD state,
> the power resources will be turned off. When one of the device is
> waked, the power resource will be turned on and all devices share it
> will be powered on to D0uninitialized state. These devices should be
> resumed, so that they can get opportunity to go to low power state
> later.
>
> Signed-off-by: Huang Ying <ying.huang@intel.com>

Makes sense.

Acked-by: Rafael J. Wysocki <rjw@sisk.pl>

> ---
> drivers/acpi/pci_bind.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> --- a/drivers/acpi/pci_bind.c
> +++ b/drivers/acpi/pci_bind.c
> @@ -45,6 +45,7 @@ static int acpi_pci_unbind(struct acpi_d
>
> device_set_run_wake(&dev->dev, false);
> pci_acpi_remove_pm_notifier(device);
> + acpi_power_resource_unregister_device(dev, device->handle);
>
> if (!dev->subordinate)
> goto out;
> @@ -71,6 +72,7 @@ static int acpi_pci_bind(struct acpi_dev
> return 0;
>
> pci_acpi_add_pm_notifier(device, dev);
> + acpi_power_resource_register_device(dev, device->handle);
> if (device->wakeup.flags.run_wake)
> device_set_run_wake(&dev->dev, true);
>
>
>



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