From: Sean Paul <seanpaul@chromium.org>
Date: Mon, 13 Feb 2012 18:14:51 +0000 (-0500)
Subject: drm/i915: Don't lock panel registers when downclocking
X-Git-Tag: v3.4-rc1~143^2~85^2~9
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8ac5a6d5b56700c006baa94272b63f2d3fdf6b06;p=pandora-kernel.git

drm/i915: Don't lock panel registers when downclocking

This patch replaces the locking from the downclock routines with an assert
to ensure the registers are indeed unlocked. Without this patch, pre-SNB
devices would lock the registers when downclocking which would cause a
WARNING on suspend/resume with downclocking enabled.

Note: To hit this bug, you need to have lvds downclocking enabled.

Signed-off-by: Sean Paul <seanpaul@chromium.org>
Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---

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