On Mon, 28 Jun 2010 21:01:53 +0200
"Rafael J. Wysocki" <rjw@xxxxxxx> wrote:
> --- linux-2.6.orig/drivers/pci/pci.c
> +++ linux-2.6/drivers/pci/pci.c
> @@ -1275,6 +1275,22 @@ bool pci_check_pme_status(struct pci_dev
> return ret;
> }
>
> +/*
> + * Time to wait before the system can be put into a sleep state after reporting
> + * a wakeup event signaled by a PCI device.
> + */
> +#define PCI_WAKEUP_COOLDOWN 100
> +
> +/**
> + * pci_wakeup_event - Report a wakeup event related to a given PCI device.
> + * @dev: Device to report the wakeup event for.
> + */
> +void pci_wakeup_event(struct pci_dev *dev)
> +{
> + if (device_may_wakeup(&dev->dev))
> + pm_wakeup_event(&dev->dev, PCI_WAKEUP_COOLDOWN);
> +}
> +
> /**
> * pci_pme_wakeup - Wake up a PCI device if its PME Status bit is set.
> * @dev: Device to handle.
> @@ -1285,8 +1301,10 @@ bool pci_check_pme_status(struct pci_dev
> */
> static int pci_pme_wakeup(struct pci_dev *dev, void *ign)
> {
> - if (pci_check_pme_status(dev))
> + if (pci_check_pme_status(dev)) {
> pm_request_resume(&dev->dev);
> + pci_wakeup_event(dev);
> + }
> return 0;
> }
>
I assume the units here are ms? And the wakeup event propagation check
is pushed down into pci_wakeup_event, is there no place to check
whether the device is configured to generate wakeups in the core device
or PM code?
Other than that, the PCI part is
Acked-by: Jesse Barnes <jbarnes@xxxxxxxxxxxxxxxx>
--
Jesse Barnes, Intel Open Source Technology Center
_______________________________________________
linux-pm mailing list
linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx
https://lists.linux-foundation.org/mailman/listinfo/linux-pm
