linux-kernel - Re: [PATCH 0/2] PM / sleep: Support for using suspend-to-idle by default

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Message-ID: <CAJZ5v0g-eOciw_3PZBvaHPzh8sMpe0Fbx6RmCTiS1Nax=Bxh3w@mail.gmail.com>
Date:   Thu, 17 Nov 2016 22:05:08 +0100
From:   "Rafael J. Wysocki" <rafael@...nel.org>
To:     Mario Limonciello <Mario.Limonciello@...l.com>
Cc:     "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Linux PM <linux-pm@...r.kernel.org>,
        ACPI Devel Maling List <linux-acpi@...r.kernel.org>,
        Len Brown <len.brown@...el.com>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Andy Lutomirski <luto@...nel.org>
Subject: Re: [PATCH 0/2] PM / sleep: Support for using suspend-to-idle by default

On Thu, Nov 17, 2016 at 9:40 PM,  <Mario.Limonciello@...l.com> wrote:
> Hi Rafael,
>
>> -----Original Message-----
>> From: Rafael J. Wysocki [mailto:rjw@...ysocki.net]
>> Sent: Wednesday, November 16, 2016 8:19 PM
>> To: Linux PM list <linux-pm@...r.kernel.org>
>> Cc: ACPI Devel Maling List <linux-acpi@...r.kernel.org>; Len Brown
>> <len.brown@...el.com>; Linux Kernel Mailing List <linux-
>> kernel@...r.kernel.org>; Limonciello, Mario
>> <Mario_Limonciello@...l.com>; Andy Lutomirski <luto@...nel.org>
>> Subject: [PATCH 0/2] PM / sleep: Support for using suspend-to-idle by
>> default
>>
>> Hi,
>>
>> This series is a follow-up for a BoF discussion during the LPC.
>>
>> The discussion was about supporting Linux on modern laptops and one of
>> the issues mentioned was the lack of support for suspend-to-idle in user
>> space and if there's anything that can be done about that in the kernel.
>>
>> The following patches are my input. :-)
>>
>> The first one reworks the suspend interface to allow the "mem" string
>> in /sys/power/state to represent multiple things that can be selected via
>> an additional sysfs attribute.
>>
>> The second one makes ACPI select suspend-to-idle as the default suspend
>> mode
>> if so indicated in the FADT.
>>
>> Please let me know what you think.
>>
>> Thanks,
>> Rafael
>
> Thanks for submitting.  I like the approach, especially that it leaves room
> to easily modify the behavior for debugging purposes and adding quirks.

Well, that's the point. :-)

> I tested your series on a machine that had this bit set in the FADT and
> confirmed that it set up and used policy properly.
>
> Tested-By: Mario Limonciello <mario.limonciello@...l.com>

Thanks!