linux-kernel - Re: [PATCH v2 1/6] MFD MAX8998/LP3974: Support Hibernation

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Message-ID: <AANLkTik8T=wmKcV13hLSkGsum3pDoPBsJ=fQZwhLA1PR@mail.gmail.com>
Date:	Thu, 23 Dec 2010 10:40:04 +0900
From:	MyungJoo Ham <myungjoo.ham@...sung.com>
To:	Mark Brown <broonie@...nsource.wolfsonmicro.com>
Cc:	linux-kernel@...r.kernel.org, Samuel Ortiz <sameo@...ux.intel.com>,
	Liam Girdwood <lrg@...mlogic.co.uk>,
	Alessandro Zummo <a.zummo@...ertech.it>,
	Kyungmin Park <kyungmin.park@...sung.com>,
	Joonyoung Shim <jy0922.shim@...sung.com>,
	Lukasz Majewski <l.majewski@...sung.com>
Subject: Re: [PATCH v2 1/6] MFD MAX8998/LP3974: Support Hibernation

On Wed, Dec 22, 2010 at 10:22 PM, Mark Brown
<broonie@...nsource.wolfsonmicro.com> wrote:
> On Wed, Dec 22, 2010 at 03:23:06PM +0900, MyungJoo Ham wrote:
>> With runtime-pm ops support, this patch enables to save and restore
>> register values for hibernation.
>
> There's no actual runtime PM support in this patch, but this looks like
> it's just an error in the changelog?
>

Probably, it can be rephrased as "Providing struct dev_pm_ops, this
patch enables to save and restore register values for hibernation".
Anyway, implementing such features also resulted in proper behavior
with runtime-pm enabled kernel. (Before this patch, there were issues
with sleep-wakeup with lp3974 irqs if runtime-pm is enabled)


-- 
MyungJoo Ham (함명주), Ph.D.
Mobile Software Platform Lab,
Digital Media and Communications (DMC) Business
Samsung Electronics
cell: 82-10-6714-2858
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