From: Chris Wilson <chris@chris-wilson.co.uk>
To: Jani Nikula <jani.nikula@intel.com>, intel-gfx@lists.freedesktop.org
Cc: Indan Zupancic <indan@nul.nu>, Takashi Iwai <tiwai@suse.de>
Subject: Re: [PATCH 1/4] drm/i915: save/restore the legacy backlight control
Date: Tue, 28 Aug 2012 08:16:54 +0100 [thread overview]
Message-ID: <051c15$44688s@AZSMGA002.ch.intel.com> (raw)
In-Reply-To: <179a19e78c99201a9ec18967c122a5a3aedbf555.1346136448.git.jani.nikula@intel.com>
On Tue, 28 Aug 2012 09:53:36 +0300, Jani Nikula <jani.nikula@intel.com> wrote:
> From: Daniel Vetter <daniel.vetter@ffwll.ch>
>
> This is a prep patch to stop drm/i915 from changing the LBPC registers
> itself - but we still need to properly save/restore it on
> suspend/resume.
My presumption was that there were BIOSes out there that only adjusted
the LBPC values, and so any device setting that flag would likely only
with it through the BIOS hotkeys. I couldn't see any other rational
reason for the hardware maintaining multiple interfaces...
-Chris
--
Chris Wilson, Intel Open Source Technology Centre
next prev parent reply other threads:[~2012-08-28 7:17 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-08-28 6:53 [PATCH 0/4] drm/i915: backlight fixes and cleanup Jani Nikula
2012-08-28 6:53 ` [PATCH 1/4] drm/i915: save/restore the legacy backlight control Jani Nikula
2012-08-28 7:16 ` Chris Wilson [this message]
2012-08-28 7:48 ` Daniel Vetter
2012-08-28 13:56 ` Indan Zupancic
2012-08-28 14:14 ` Daniel Vetter
2012-08-28 14:49 ` Indan Zupancic
2012-08-28 15:15 ` Daniel Vetter
2012-08-30 8:32 ` Indan Zupancic
2012-08-30 8:50 ` Daniel Vetter
2012-08-28 6:53 ` [PATCH 2/4] drm/i915: remove combination mode for backlight control, again Jani Nikula
2012-08-28 14:39 ` Indan Zupancic
2012-08-28 14:55 ` Daniel Vetter
2012-08-30 9:29 ` Indan Zupancic
2012-11-14 16:48 ` Jesse Barnes
2012-08-28 6:53 ` [PATCH 3/4] drm/i915: remove brightness inversion quirk for acer aspire 5734z Jani Nikula
2012-08-28 6:53 ` [PATCH 4/4] drm/i915: remove module parameter and quirk for inverting brightness Jani Nikula
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