From: Matthew Garrett <matthew.garrett@nebula.com>
To: Jani Nikula <jani.nikula@linux.intel.com>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>,
Daniel Vetter <daniel@ffwll.ch>, Aaron Lu <aaron.lu@intel.com>,
ACPI Devel Mailing List <linux-acpi@vger.kernel.org>,
Daniel Vetter <daniel.vetter@ffwll.ch>,
"intel-gfx@lists.freedesktop.org"
<intel-gfx@lists.freedesktop.org>,
Yves-Alexis Perez <corsac@debian.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"dri-devel@lists.freedesktop.org"
<dri-devel@lists.freedesktop.org>,
Seth Forshee <seth.forshee@canonical.com>,
"Lee, Chun-Yi" <joeyli.kernel@gmail.com>,
Igor Gnatenko <i.gnatenko.brain@gmail.com>,
Henrique de Moraes Holschuh <hmh@hmh.eng.br>,
Lee Chun-Yi <jlee@novell.com>, Len Brown <lenb@kernel.org>
Subject: Re: [PATCH 2/2] ACPI / video / i915: Remove ACPI backlight if firmware expects Windows 8
Date: Tue, 10 Sep 2013 14:21:26 +0000 [thread overview]
Message-ID: <1378822886.17982.58.camel@x230.lan> (raw)
In-Reply-To: <87bo40ahai.fsf@intel.com>
On Tue, 2013-09-10 at 17:21 +0300, Jani Nikula wrote:
> On Tue, 10 Sep 2013, Matthew Garrett <matthew.garrett@nebula.com> wrote:
> > On Tue, 2013-09-10 at 16:53 +0300, Jani Nikula wrote:
> >
> >> I think the parameter "Does the ACPI backlight interface work or not"
> >> belongs to the ACPI video driver.
> >
> > That depends on how Windows 8 works. If Windows 8 policy is handled by
> > the GPU drivers then it belongs in i915. If it's handled by the ACPI
> > code then it belongs in the ACPI code.
>
> I fail to see the logic. Windows 8 policy dictates whether we can use
> the AML code or not. IMHO, ACPI code is in the best position to figure
> this out and quirk as necessary. It's the part that knows about Windows
> 8, not i915.
So if nvidia hardware uses the ACPI interface and Intel doesn't, we
should still quirk it in the ACPI driver?
--
Matthew Garrett <matthew.garrett@nebula.com>
next prev parent reply other threads:[~2013-09-10 14:21 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-09 8:37 [PATCH 0/2] Rework ACPI video driver Aaron Lu
2013-09-09 8:40 ` [PATCH 1/2] ACPI / video: seperate backlight control and event interface Aaron Lu
2013-09-10 5:23 ` Igor Gnatenko
2013-09-09 8:42 ` [PATCH 2/2] ACPI / video / i915: Remove ACPI backlight if firmware expects Windows 8 Aaron Lu
2013-09-09 9:32 ` Daniel Vetter
2013-09-09 12:16 ` Rafael J. Wysocki
2013-09-09 15:21 ` Daniel Vetter
2013-09-09 15:38 ` Matthew Garrett
2013-09-09 20:23 ` Rafael J. Wysocki
2013-09-10 13:53 ` Jani Nikula
2013-09-10 13:56 ` Matthew Garrett
2013-09-10 14:21 ` Jani Nikula
2013-09-10 14:21 ` Matthew Garrett [this message]
2013-09-10 19:23 ` Rafael J. Wysocki
2013-09-11 1:32 ` Aaron Lu
2013-09-11 8:45 ` Jani Nikula
2013-09-11 8:45 ` Matthew Garrett
2013-09-11 9:09 ` Yves-Alexis Perez
2013-09-11 10:29 ` Jani Nikula
2013-09-11 10:30 ` Matthew Garrett
2013-09-12 2:26 ` Aaron Lu
2013-09-10 6:30 ` Aaron Lu
2013-09-09 11:44 ` Igor Gnatenko
2013-09-10 3:27 ` Aaron Lu
2013-09-10 5:13 ` Igor Gnatenko
2013-09-10 5:16 ` Aaron Lu
2013-09-10 5:22 ` Igor Gnatenko
2013-09-10 5:42 ` Aaron Lu
2013-09-10 5:23 ` Igor Gnatenko
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