linux-kernel - Re: [PATCH 3.8.y] drm/i915: add quirk to invert brightness on eMachines e725

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Date:	Wed, 10 Apr 2013 03:34:14 +0100
From:	Ben Hutchings <ben@...adent.org.uk>
To:	Josh Boyer <jwboyer@...hat.com>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Daniel Vetter <daniel.vetter@...ll.ch>
Cc:	Jani Nikula <jani.nikula@...el.com>, stable@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3.8.y] drm/i915: add quirk to invert brightness on
 eMachines e725

On Tue, 2013-04-09 at 10:22 -0400, Josh Boyer wrote:
> On Tue, Apr 09, 2013 at 05:12:18PM +0300, Jani Nikula wrote:
> > On Tue, 09 Apr 2013, Josh Boyer <jwboyer@...hat.com> wrote:
> > > Upstream commit 01e3a8feb40e54b962a20fa7eb595c5efef5e109
> > 
> > This patch seems to be the above commit and
> > 
> > commit 1ffff60320879830e469e26062c18f75236822ba
> > Author: Jani Nikula <jani.nikula@...el.com>
> > Date:   Tue Jan 22 12:50:34 2013 +0200
> > 
> >     drm/i915: add quirk to invert brightness on eMachines G725
> > 
> > squashed together. There's a separate bug for that too:
> > https://bugs.freedesktop.org/show_bug.cgi?id=59628
> 
> Oh...  that actually does seem to be the case.  I did a cherry-pick
> of just the commit I mentioned on top of 3.8.6 and it seems I resolved
> the conflict by including in changes for both.  The conflict came up as:
> 
> <<<<<<< HEAD
>         /* Acer Aspire 4736Z */
>         { 0x2a42, 0x1025, 0x0260, quirk_invert_brightness },
> =======
>         /* Acer/eMachines G725 */
>         { 0x2a42, 0x1025, 0x0210, quirk_invert_brightness },
> 
>         /* Acer/eMachines e725 */
>         { 0x2a42, 0x1025, 0x0212, quirk_invert_brightness },
> >>>>>>> 01e3a8f... drm/i915: add quirk to invert brightness on eMachines e725
> 
> Thanks for catching that.
> 
> > I think both are okay for stable, but by the stable rules you should
> > probably split this up, with the appropriate upstream references in
> > both. Or do whatever the stable team tells you to do. ;)
> 
> Yeah.  I'm happy to split them up and send them out separately.  Or if
> Greg wants to just list both upstream commit IDs with a single backport,
> that would also be fine.

I cherry-picked the following series for Debian:

[pre-3.8]
7bd90909bbf9 drm/i915: panel: invert brightness via parameter
4dca20efb1a9 drm/i915: panel: invert brightness via quirk
5a15ab5b93e4 drm/i915: panel: invert brightness acer aspire 5734z
5f85f176c2f1 DRM/i915: Add QUIRK_INVERT_BRIGHTNESS for NCR machines.
[post-3.8]
1ffff6032087 drm/i915: add quirk to invert brightness on eMachines G725
01e3a8feb40e drm/i915: add quirk to invert brightness on eMachines e725
5559ecadad5a drm/i915: add quirk to invert brightness on Packard Bell NCL20

Should these all be applied to the various 3.x.y stable branches?

Ben.

-- 
Ben Hutchings
The program is absolutely right; therefore, the computer must be wrong.

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