From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Wed, 17 Oct 2012 09:32:57 +0000 (+0200)
Subject: drm/i915: don't save/restore HWS_PGA reg for kms
X-Git-Tag: v3.8-rc1~82^2~192^2~177
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c630119f43471a8ece356b01dabf07f944f453b3;p=pandora-kernel.git

drm/i915: don't save/restore HWS_PGA reg for kms

We already do that as part of the ringbuffer re-setup at resume time.
Furthermore the register offset has moved on gen6+ around quite a bit,
and on ilk/gm45 we also need to restore the HWS reg for the bsd ring,
not just the render ring.

So again in kms mode this is only confusing a best, hence don't
bother.

v2: Fixup logic, noticed by Paulo Zanoni.

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

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