linux-kernel - Re: [PATCH 09/12] PM / mfd: intel-lpss: Use DPM_FLAG_SMART

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Message-ID: <CAJZ5v0gbmPd=rrveH1LyOYhB2Uu8Tz54C1Y+TutYmdRJCv8G4g@mail.gmail.com>
Date:   Wed, 1 Nov 2017 21:26:13 +0100
From:   "Rafael J. Wysocki" <rafael@...nel.org>
To:     Lee Jones <lee.jones@...aro.org>
Cc:     "Rafael J. Wysocki" <rafael@...nel.org>,
        "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>,
        Wolfram Sang <wsa@...-dreams.de>,
        linux-i2c <linux-i2c@...r.kernel.org>
Subject: Re: [PATCH 09/12] PM / mfd: intel-lpss: Use DPM_FLAG_SMART_SUSPEND

On Wed, Nov 1, 2017 at 10:28 AM, Lee Jones <lee.jones@...aro.org> wrote:
> On Tue, 31 Oct 2017, Rafael J. Wysocki wrote:
>
>> On Tue, Oct 31, 2017 at 4:09 PM, Lee Jones <lee.jones@...aro.org> wrote:
>> > On Mon, 16 Oct 2017, Rafael J. Wysocki wrote:
>> >
>> >> From: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
>> >>
>> >> Make the intel-lpss driver set DPM_FLAG_SMART_SUSPEND for its
>> >> devices which will allow them to stay in runtime suspend during
>> >> system suspend unless they need to be reconfigured for some reason.
>> >>
>> >> Also make it avoid resuming its child devices if they have
>> >> DPM_FLAG_SMART_SUSPEND set to allow them to remain in runtime
>> >> suspend during system suspend.
>> >>
>> >> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
>> >> ---
>> >>  drivers/mfd/intel-lpss.c |    6 +++++-
>> >>  1 file changed, 5 insertions(+), 1 deletion(-)
>> >
>> > Is this patch independent?
>>
>> It depends on the flag definition at least, but functionally it also
>> depends on the PCI support for the flag.
>
> No problem.  Which tree to you propose this goes through?

linux-pm.git if that's not a problem as the patches it depends on will
go through it too.

That said I'll resend it when the core patches it depends on are ready.

Thanks,
Rafael