linux-kernel - Re: drivers/platform/x86: Backlight-Add-backlight-type-v2.patch

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Date:	Wed, 27 Oct 2010 13:39:10 +0200
From:	Corentin Chary <corentin.chary@...il.com>
To:	sedat.dilek@...il.com
Cc:	LKML <linux-kernel@...r.kernel.org>,
	platform-driver-x86@...r.kernel.org,
	DRI <dri-devel@...ts.freedesktop.org>,
	Matthew Garrett <mjg@...hat.com>,
	acpi4asus-user@...ts.sourceforge.net,
	Michel Dänzer <michel@...nzer.net>,
	linux-wireless@...r.kernel.org
Subject: Re: drivers/platform/x86: Backlight-Add-backlight-type-v2.patch

On Wed, Oct 27, 2010 at 1:06 PM, Sedat Dilek <sedat.dilek@...glemail.com> wrote:
> Hi,
>
> while testing linux-next I wanted to reactivate the backlight type
> patches laying in my build-dir.
>
> Within 2.6.36-rcX cycle I had successfully tested the backlight type
> patch [1] with an additional patch for radeon by Michel (posted to
> dri-devel ML, see [2]).
>
> The main patch needs a little refreshing.
>
> v2: drivers/platform/x86/asus-laptop.c: Refreshed to fit linux-next
> (next-20101027)
>
>
> Kind Regards,
> - Sedat -
>
> [1] https://patchwork.kernel.org/patch/163971/
> [2] https://patchwork.kernel.org/patch/182352/
>

Hi,

I think rfkill has the same problem, on some platforms, the platform
driver will add a rfkill switch, but the network (wlan/wimax/whatever)
driver may also add one. AFAIK, the platform one is more likely to be
able to power down the device completly.

For the current patch, a common pattern seems to be : video/ -> RAW,
platform/ -> PLATFORM. Couldn't we make some guess by checking the
parent of the backlight instead of doing this by hand for every
drivers ?

Thanks,

-- 
Corentin Chary
http://xf.iksaif.net
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