From: Ville Syrjälä <ville.syrjala@linux.intel.com>
Date: Thu, 5 Dec 2013 13:51:30 +0000 (+0200)
Subject: drm/i915: Avoid computing invalid WM levels when sprites/scaling is enabled
X-Git-Tag: v3.14-rc1~47^2~16^2~48
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7b39a0b791a356d09dd2517ec04b1bf9cdced4ab;p=pandora-kernel.git

drm/i915: Avoid computing invalid WM levels when sprites/scaling is enabled

On ILK/SNB only LP0/1 watermarks can be enabled when sprites are
enabled, and on ILK/SNB/IVB sprite scaling is limited to LP0 only.

So we can avoid computing the extra levels we're never going to use.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---

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