From: Rodrigo Vivi <rodrigo.vivi@intel.com>
Date: Wed, 17 Sep 2014 20:59:20 +0000 (-0400)
Subject: drm/i915: Avoid reading fbc registers in vain when fbc was never enabled.
X-Git-Tag: omap-for-v3.19/fixes-rc1~80^2~79^2~41
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=342e36c6b0cab1d7461287d553154ff35fee989d;p=pandora-kernel.git

drm/i915: Avoid reading fbc registers in vain when fbc was never enabled.

If it wasn't never enabled by kernel parameter or platform default
we can avoid reading registers so many times in vain

Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---

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