Re: Re: [PATCH 4/4]An ACPI callback for pci_set_power_state

Pavel Machek
2005-01-05T09:11:41Z

Hi!

> > > This is an ACPI callback for pci_set_power_state. Besides setting PCI
> > > config space, changing device's power state sometimes requires to power
> > > on device's power source and to invoke other firmware methods.
> >
> >
> > > diff -puN drivers/pci/pci.h~acpi-pci-set-power-state-callback drivers/pci/pci.h
> > > --- 2.5/drivers/pci/pci.h~acpi-pci-set-power-state-callback 2005-01-05 09:58:06.469923128 +0800
> > > +++ 2.5-root/drivers/pci/pci.h 2005-01-05 09:58:06.473922520 +0800
> > > @@ -13,6 +13,7 @@ extern int pci_bus_alloc_resource(struct
> > > void *alignf_data);
> > > /* Firmware callbacks */
> > > extern int (*platform_pci_get_suspend_state)(struct device *dev, u32 state);
> > > +extern int (*platform_pci_set_power_state)(struct pci_dev *dev, int state);
> >
> > What kind of state is passed here? Why is it u32 in one case and int
> > in the second one?
> This is the types of current pci routines (pci_set_power_state and pci_device_suspend).
> Both are PCI device states. I agree it's confused.

Ok, that should become pci_power_t in very near future, then.

> > I'm about to introduce separate types for pci power states and system
> > power states; could you at least add comments which states are which?
> > Also few lines of documentation would be very usefull...
> I planed post the patches after your patches enter before, but it seems
> have a long delay. What's your plan? I'm ok to merge the patches after
> yours.

pci_power_t patches were merged to Greg, so I'd say they are going to
linus "real soon now" :-).
Pavel
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