linux-kernel - Re: [PATCH v7 04/20] PM / devfreq: Add new DEVFREQ_TRANSITION

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Date:	Wed, 06 Apr 2016 09:46:59 +0000 (GMT)
From:	MyungJoo Ham <myungjoo.ham@...sung.com>
To:	최찬우 <cw00.choi@...sung.com>,
	박경민 <kyungmin.park@...sung.com>,
	크쉬시토프 
	<k.kozlowski@...sung.com>, "kgene@...nel.org" <kgene@...nel.org>
Cc:	"rjw@...ysocki.net" <rjw@...ysocki.net>,
	"robh+dt@...nel.org" <robh+dt@...nel.org>,
	"pawel.moll@....com" <pawel.moll@....com>,
	"mark.rutland@....com" <mark.rutland@....com>,
	"ijc+devicetree@...lion.org.uk" <ijc+devicetree@...lion.org.uk>,
	"galak@...eaurora.org" <galak@...eaurora.org>,
	"linux@....linux.org.uk" <linux@....linux.org.uk>,
	"linux.amoon@...il.com" <linux.amoon@...il.com>,
	"m.reichl@...etechno.de" <m.reichl@...etechno.de>,
	"tjakobi@...h.uni-bielefeld.de" <tjakobi@...h.uni-bielefeld.de>,
	대인기 <inki.dae@...sung.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-pm@...r.kernel.org" <linux-pm@...r.kernel.org>,
	"linux-samsung-soc@...r.kernel.org" 
	<linux-samsung-soc@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>
Subject: Re: [PATCH v7 04/20] PM / devfreq: Add new DEVFREQ_TRANSITION_NOTIFIER
 notifier

>   
>  This patch adds the new DEVFREQ_TRANSITION_NOTIFIER notifier to send
> the notification when the frequency of device is changed.
> This notifier has two state as following:
> - DEVFREQ_PRECHANGE  : Notify it before chaning the frequency of device
> - DEVFREQ_POSTCHANGE : Notify it after changed the frequency of device
> 
> And this patch adds the resourced-managed function to release the resource
> automatically when error happen.
> 
> Signed-off-by: Chanwoo Choi <cw00.choi@...sung.com>
> [m.reichl and linux.amoon: Tested it on exynos4412-odroidu3 board]
> Tested-by: Markus Reichl <m.reichl@...etechno.de>
> Tested-by: Anand Moon <linux.amoon@...il.com>

Signed-off-by: MyungJoo Ham <myungjoo.ham@...sung.com>

> ---
>  drivers/devfreq/devfreq.c | 163 +++++++++++++++++++++++++++++++++++++++++++++-
>  include/linux/devfreq.h   |  59 ++++++++++++++++-
>  2 files changed, 220 insertions(+), 2 deletions(-)