From: Jesse Barnes <jbarnes@virtuousgeek.org>
Date: Tue, 10 Apr 2012 18:58:04 +0000 (-0700)
Subject: drm/i915: check PPS regs for sanity when using eDP
X-Git-Tag: v3.5-rc1~83^2~81^2~71
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=bfa3384a9a84aaaa59443bbd776c142e7dba4b0f;p=pandora-kernel.git

drm/i915: check PPS regs for sanity when using eDP

If these regs don't have valid values, the panel won't come up, and may
even cause a system hang.  So do a basic sanity check when an eDP panel
is detected.

Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=44305
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---

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