From: Ville Syrjälä <ville.syrjala@linux.intel.com>
Date: Thu, 4 Sep 2014 11:53:14 +0000 (+0300)
Subject: drm/i915: Fix edp vdd locking
X-Git-Tag: fixes-against-v3.18-rc2~73^2~32^2~12
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e39b999a6f229386ea6c58cb1c10ce9dc912869b;p=pandora-kernel.git

drm/i915: Fix edp vdd locking

Introduce a new mutex (pps_mutex) to protect the power sequencer
state. For now this state includes want_panel_vdd as well as the
power sequencer registers.

We need a single mutex (as opposed to per port) because later on we
will need to deal with VLV/CHV which have multiple power sequencer
which can be reassigned to different ports.

v2: Add the locking to intel_dp_encoder_suspend too (Imre)
v3: Take care intel_edp_backlight_power() and
    _intel_edp_backlight_on/off(), deal with reboot notifier
    vlv_power_sequencer_pipe() call (Imre)

Reviewed-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---

Reading git-diff-tree failed