linux-kernel - Re: [Intel-gfx] [PATCH 2/4] drm/i915: Leave LVDS registers unlocked

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Message-ID: <yunr54vu4lr.fsf@aiko.keithp.com>
Date:	Mon, 08 Aug 2011 11:42:56 -0700
From:	Keith Packard <keithp@...thp.com>
To:	Jesse Barnes <jbarnes@...tuousgeek.org>
Cc:	Dave Airlie <airlied@...hat.com>, intel-gfx@...ts.freedesktop.org,
	linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org
Subject: Re: [Intel-gfx] [PATCH 2/4] drm/i915: Leave LVDS registers unlocked

On Mon, 8 Aug 2011 09:30:10 -0700, Jesse Barnes <jbarnes@...tuousgeek.org> wrote:

> Yep, looks fine.  The only think we might want to sprinkle about are
> checks for panel off so we can avoid visible corruption if we whack
> timing or fb stuff while the panel is on.

So, I'd like to know if we could unlock the panel registers on pre-PCH
hardware as well at init time; that way I could remove the unlock code
From intel_lvds_prepare too. Should it be possible to set the
PANEL_UNLOCK_REGS bits for pre-PCH hardware without having the target off?

-- 
keith.packard@...el.com

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