linux-kernel - Re: [PATCH v2 2/6] PCI / PM: Support for LEAVE

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Message-ID: <CAJZ5v0jFxv0E0FMmZkeQscvBUR3ORbPQXpZhEn2zYDktri8XMQ@mail.gmail.com>
Date:   Wed, 8 Nov 2017 22:09:14 +0100
From:   "Rafael J. Wysocki" <rafael@...nel.org>
To:     Bjorn Helgaas <helgaas@...nel.org>
Cc:     "Rafael J. Wysocki" <rjw@...ysocki.net>,
        Linux PM <linux-pm@...r.kernel.org>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Alan Stern <stern@...land.harvard.edu>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Linux ACPI <linux-acpi@...r.kernel.org>,
        Linux PCI <linux-pci@...r.kernel.org>,
        Linux Documentation <linux-doc@...r.kernel.org>,
        Mika Westerberg <mika.westerberg@...ux.intel.com>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Kevin Hilman <khilman@...nel.org>
Subject: Re: [PATCH v2 2/6] PCI / PM: Support for LEAVE_SUSPENDED driver flag

On Wed, Nov 8, 2017 at 9:38 PM, Bjorn Helgaas <helgaas@...nel.org> wrote:
> On Wed, Nov 08, 2017 at 02:28:18PM +0100, Rafael J. Wysocki wrote:
>> From: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
>>
>> Add support for DPM_FLAG_LEAVE_SUSPENDED to the PCI bus type by
>> making it (a) set the power.may_skip_resume status bit for devices
>> that, from its perspective, may be left in suspend after system
>> wakeup from sleep and (b) return early from pci_pm_resume_noirq()
>> for devices whose remaining resume callbacks during the transition
>> under way are going to be skipped by the PM core.
>>
>> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
>> Acked-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
>
> Acked-by: Bjorn Helgaas <bhelgaas@...gle.com>

Thanks!