From: Paulo Zanoni <paulo.r.zanoni@intel.com>
Date: Wed, 8 Jan 2014 13:12:27 +0000 (-0200)
Subject: drm/i915: fix DDI PLLs HW state readout code
X-Git-Tag: v3.13~17^2~2^2~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0882dae983707455e97479e5e904e37673517ebc;p=pandora-kernel.git

drm/i915: fix DDI PLLs HW state readout code

Properly zero the refcounts and crtc->ddi_pll_set so the previous HW
state doesn't affect the result of reading the current HW state.

This fixes WARNs about WRPLL refcount if we have an HDMI monitor on
HSW and then suspend/resume.

Cc: stable@vger.kernel.org
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=64379
Tested-by: Qingshuai Tian <qingshuai.tian@intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---

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