linux-kernel - Re: [Update][PATCH 3/3] input: i8042: Avoid resetting controller on system suspend/resume

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Message-ID: <20151012201144.GB4010@dtor-ws>
Date:	Mon, 12 Oct 2015 13:11:44 -0700
From:	Dmitry Torokhov <dmitry.torokhov@...il.com>
To:	"Rafael J. Wysocki" <rjw@...ysocki.net>
Cc:	Linux PM list <linux-pm@...r.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	ACPI Devel Maling List <linux-acpi@...r.kernel.org>,
	Alan Stern <stern@...land.harvard.edu>,
	Daniel Vetter <daniel.vetter@...el.com>,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	Linux PCI <linux-pci@...r.kernel.org>
Subject: Re: [Update][PATCH 3/3] input: i8042: Avoid resetting controller on
 system suspend/resume

On Mon, Oct 12, 2015 at 10:17:05PM +0200, Rafael J. Wysocki wrote:
> On Wednesday, October 07, 2015 03:03:57 AM Rafael J. Wysocki wrote:
> > From: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
> > 
> > If the upcoming system suspend is not going to be handled by the
> > platform firmware, like in the suspend-to-idle case, it is not
> > necessary to reset the controller in i8042_pm_suspend(), so avoid
> > doing that.
> > 
> > Moreover, if the system resume currently in progress has not been
> > started by the platform firmware, like in the suspend-to-idle case,
> > i8042_controller_resume() need not be called by i8042_pm_resume(),
> > so avoid doing that too in that case.
> > 
> > Additionally, try to catch the event that woke up the system by
> > calling the interrupt handler early during system resume if it has
> > not been started by the platform firmware.
> > 
> > Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com>
> 
> If there are no more comments here, I'll tentatively queue it up for v4.4
> along with the [1-2/3] from this series.
> 
> Please let me know if there are any problems with that.

No problems from my POV.

Acked-by: Dmitry Torokhov <dmitry.torokhov@...il.com>

Thanks.

-- 
Dmitry
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