Messages in this thread | | | Date | Mon, 1 Mar 2010 09:38:31 -0800 | From | Jesse Barnes <> | Subject | Re: [PATCH] PCI / PM / Runtime: Make runtime PM of PCI devices inactive by default |
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On Sat, 27 Feb 2010 21:37:37 +0100 "Rafael J. Wysocki" <rjw@sisk.pl> wrote:
> From: Rafael J. Wysocki <rjw@sisk.pl> > > Make the run-time power management of PCI devices be inactive by > default by calling pm_runtime_forbid() for each PCI device during its > initialization. This setting may be overriden by the user space with > the help of the /sys/devices/.../power/control interface. > > That's necessary to avoid breakage on systems where ACPI-based > wake-up is known to fail for some devices. > > Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> > --- > drivers/pci/pci.c | 2 ++ > 1 file changed, 2 insertions(+) > > Index: linux-2.6/drivers/pci/pci.c > =================================================================== > --- linux-2.6.orig/drivers/pci/pci.c > +++ linux-2.6/drivers/pci/pci.c > @@ -1540,8 +1540,10 @@ void pci_pm_init(struct pci_dev *dev) > int pm; > u16 pmc; > > + pm_runtime_forbid(&dev->dev); > device_enable_async_suspend(&dev->dev); > dev->wakeup_prepared = false; > + > dev->pm_cap = 0; > > /* find PCI PM capability in list */ >
Applied to my for-linus branch, thanks.
-- Jesse Barnes, Intel Open Source Technology Center
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