linux-kernel - Re: [PATCH 03/21] drm/i915: Remove extra 300ms delay during eDP mode setting

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Message-ID: <yunk48p7ume.fsf@aiko.keithp.com>
Date:	Fri, 30 Sep 2011 11:28:09 -0700
From:	Keith Packard <keithp@...thp.com>
To:	Daniel Vetter <daniel@...ll.ch>, Dave Airlie <airlied@...hat.com>,
	intel-gfx@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
	dri-devel@...ts.freedesktop.org,
	"Barnes\, Jesse" <jbarnes@...tuousgeek.org>
Subject: Re: [PATCH 03/21] drm/i915: Remove extra 300ms delay during eDP mode setting

On Fri, 30 Sep 2011 20:09:59 +0200, Daniel Vetter <daniel@...ll.ch> wrote:

> On further strolling through bspec to review later patches I've noticed
> that PCH_PP_ON_DELAYS and PCH_PP_OFF_DELAYS seem to have values for
> power on->backlight on and backlight off->panel off delays. Maybe we
> should use these?

Yeah, I must have missed those. For backlight on, I think I'll make it
asynchronous with a delayed work proc so that the rest of the boot/dpms
process doesn't block behind turning the light on.

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

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