From: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Date: Fri, 23 Aug 2013 13:52:30 +0000 (+0300)
Subject: drm/i915: sanitize forcewake registers on reset
X-Git-Tag: v3.12-rc1~61^2~1^2~27
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=521198a2e7095c8c7daa8d7d3a76a110c346be6f;p=pandora-kernel.git

drm/i915: sanitize forcewake registers on reset

In reset we try to restore the forcewake state to
pre reset state, using forcewake_count. The reset
doesn't seem to clear the forcewake bits so we
get warn on forcewake ack register not clearing.

Use same mechanism as intel_uncore_sanitize() does
when loading driver to reset the forcewake bits, right
after the chip has been reset.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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