[Intel-gfx] [PATCH 2/4] drm/i915: IBX+ doesn't have separate vsync/hsync controls on the VGA DAC

[Chris Wilson]

On Tue, 17 Apr 2012 15:06:33 -0700, Jesse Barnes <jbarnes at virtuousgeek.org> wrote:
> Like this?
> 
> From fee9f6fbf2230f96b9195baf32fd67b243969a14 Mon Sep 17 00:00:00 2001
> From: Jesse Barnes <jbarnes at virtuousgeek.org>
> Date: Wed, 11 Apr 2012 09:23:34 -0700
> Subject: [PATCH] drm/i915: IBX+ doesn't have separate vsync/hsync controls on
>  the VGA DAC
> 
> When the PCH split occurred, we dropped support for separate hsync and
> vsync disable in the VGA DAC.  So add a PCH specific DPMS function that
> just uses the port enable bit for controlling DPMS states.
> 
> Before this fix, when anything other than a full DPMS off occurred,
> the VGA port would be left enabled and scanning out while all the other
> heads would turn off as expected.
> 
> v2: duplicate encoder helper vtable into pch and gmch versions (Daniel)
> 
> Signed-off-by: Jesse Barnes <jbarnes at virtuousgeek.org>

With s/intel_crt_dpms/gmch_crt_dpms/ and
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=48491

Reviewed-by: Chris Wilson <chris at chris-wilson.co.uk>
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre