[Intel-gfx] [PATCH 4/4] drm/i915: allow pipe A for lvds on gen4

[Eugeni Dodonov]

On 06/05/2012 05:07 AM, Daniel Vetter wrote:
> Given the havoc the missing backlight pipe select code might have
> caused, let's try to re-enabled pipe A support for lvds on gen4 hw.
> Just to see what all blows up ...
> 
> Note though that
> 
> commit 4add75c43f39573edc884d46b7c2b7414f01171a
> Author: Chris Wilson <chris at chris-wilson.co.uk>
> Date:   Sat Dec 4 17:49:46 2010 +0000
> 
>     drm/i915: Allow LVDS to be on pipe A for Ironlake+
> 
> claims that this caused tons of spurious wakeups somehow.
> 
> More details can be found in the old revert:
> 
> commit 12e8ba25ef52f19e7a42e61aecb3c1fef83b2a82
> Author: Chris Wilson <chris at chris-wilson.co.uk>
> Date:   Tue Sep 7 23:39:28 2010 +0100
> 
>     Revert "drm/i915: Allow LVDS on pipe A on gen4+"
> 
>     Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=16307
> 
> Signed-off-by: Daniel Vetter <daniel.vetter at ffwll.ch>

I think we'll notice soon enough if it breaks something, so why not
giving it a try?

Reviewed-by: Eugeni Dodonov <eugeni.dodonov at intel.com>

Eugeni