From: Paulo Zanoni <paulo.r.zanoni@intel.com>
Date: Tue, 20 Nov 2012 15:27:38 +0000 (-0200)
Subject: drm/i915: fix false positive "Unclaimed write" messages
X-Git-Tag: v3.8-rc1~82^2~14^2~17
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c54e59046c825266ca0decdac47fcfcf902b6cd6;p=pandora-kernel.git

drm/i915: fix false positive "Unclaimed write" messages

We don't check if the "unclaimed register" bit is set before we call
writel, so if it was already set before, we might print a misleading
message about "unclaimed write" on the wrong register.

This patch makes us check the unclaimed bit before the writel, so we
can print a new "Unknown unclaimed register before writing to %x"
message.

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---

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