From: Jani Nikula <jani.nikula@intel.com>
Date: Tue, 4 Dec 2012 14:36:28 +0000 (+0200)
Subject: drm/i915: do not access BLC_PWM_CTL2 on pre-gen4 hardware
X-Git-Tag: v3.8-rc1~82^2^2~11
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=bfd7590d3eed3650e910a22a92dc23ea50e60a41;p=pandora-kernel.git

drm/i915: do not access BLC_PWM_CTL2 on pre-gen4 hardware

The BLC_PWM_CTL2 register does not exist before gen4. While at it, do a
slight drive by cleanup of the code.

Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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