linux-kernel - Re: gma500 opregion/power init order backtrace

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Message-ID: <20120720163247.19578db4@destiny.ordissimo>
Date:	Fri, 20 Jul 2012 16:32:47 +0200
From:	Anisse Astier <anisse@...ier.eu>
To:	Alan Cox <alan@...ux.intel.com>
Cc:	Josh Boyer <jwboyer@...hat.com>, kernel-team@...oraproject.org,
	Dave Airlie <airlied@...hat.com>, dkline@...hat.com,
	linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org
Subject: Re: gma500 opregion/power init order backtrace

On Tue, 17 Jul 2012 22:12:42 +0100, Alan Cox <alan@...ux.intel.com> wrote :

> > I'm wondering if the gma_power_init call can be moved up before
> > chip_setup is called.  Seems so, but I thought I would ping you to see
> > if you've seen this already.
> 
> Fixed in the patches that went to Linus.
Thanks for this ! I was having this 100 scale brightness issue on anther
hardware.

> 
> I don't have the ACPI backlight working on a lot of systems and don't
> know why to be honest but the native backlight should work. Of course if
> the acpi keys are plumbed into the ACPI backlight it's less useful 8)

Can't we just "wire" this to psb-bl in the driver ? There are a few
drivers in drivers/platform/x86 already sending KEY_BRIGHTNESS{UP,DOWN}
keycodes.

Regards,

Anisse

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