linux-kernel - Re: [PATCH v2 2/3] ACPI / video: seperate backlight control and event interface

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Message-ID: <1379682099.9746.5.camel@oban>
Date:	Fri, 20 Sep 2013 15:01:39 +0200
From:	Yves-Alexis Perez <corsac@...ian.org>
To:	Aaron Lu <aaron.lu@...el.com>
Cc:	linux-acpi@...r.kernel.org, intel-gfx@...ts.freedesktop.org,
	dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
	Daniel Vetter <daniel@...ll.ch>,
	"Rafael J. Wysocki" <rjw@...k.pl>,
	Matthew Garrett <matthew.garrett@...ula.com>,
	Seth Forshee <seth.forshee@...onical.com>,
	Lee Chun-Yi <joeyli.kernel@...il.com>,
	Richard Purdie <rpurdie@...ys.net>,
	Igor Gnatenko <i.gnatenko.brain@...il.com>,
	Felipe Contreras <felipe.contreras@...il.com>,
	Henrique de Moraes Holschuh <ibm-acpi@....eng.br>,
	Jani Nikula <jani.nikula@...ux.intel.com>
Subject: Re: [PATCH v2 2/3] ACPI / video: seperate backlight control and
 event interface

On mar., 2013-09-17 at 17:23 +0800, Aaron Lu wrote:
> The backlight control and event delivery functionality provided by
> ACPI
> video module is mixed together and registered all during video device
> enumeration time. As a result, the two functionality are also removed
> together on module unload time or by the acpi_video_unregister
> function.
> The two functionalities are actually independent and one may be useful
> while the other one may be broken, so it is desirable to seperate the
> two functionalities such that it is clear and easy to disable one
> functionality without affecting the other one.
> 
> APIs to selectively remove backlight control interface and/or event
> delivery functionality can be easily added once needed.
> 
> Signed-off-by: Aaron Lu <aaron.lu@...el.com>
Tested-by: Yves-Alexis Perez <corsac@...ian.org>
-- 
Yves-Alexis

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