[update][PATCH v10 06/21] ACPI / sleep: Introduce CONFIG_ACPI_GENERIC_SLEEP
Rafael J. Wysocki
rjw at rjwysocki.net
Tue Mar 17 07:30:04 PDT 2015
On Tuesday, March 17, 2015 12:35:36 PM Lorenzo Pieralisi wrote:
> On Tue, Mar 17, 2015 at 03:23:11AM +0000, Rafael J. Wysocki wrote:
> > > Do you mean remove CONFIG_ACPI_GENERIC_SLEEP and
> > >
> > > +acpi-$(CONFIG_ACPI_SLEEP) += sleep.o
> > >
> > > as well (also need to remove duplicate #ifdef CONFIG_ACPI_SLEEP in sleep.c if
> > > we doing so)?
> > Well, almost. There is one problem with that, becuase sleep.c contains code
> > outside of the ACPI_SLEEP-dependent blocks. That code is used for powering
> > off ACPI platforms.
> > I guess you don't want that code on ARM too, right?
> > Perhaps we can use ACPI_REDUCED_HARDWARE_ONLY for that? ARM64 will be the
> > only arch setting it at least for the time being, is that correct?
> HW reduced only platforms are still required to support sleep
> states that on arm64 are totally meaningless at present, so I do
> not think ACPI_REDUCED_HARDWARE_ONLY will cut it.
> Factoring out power_off methods from sleep.c ? I know, it is not nicer
> since you split the S-states management in multiple files.
> Side note: is the acpi_suspend() function in sleep.c used in the kernel ?
No, it isn't. I've just sent a patch to drop it.
I speak only for myself.
Rafael J. Wysocki, Intel Open Source Technology Center.
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