From 5d6f7ea752228788eddce0b9e268fa1f0eabdd7f Mon Sep 17 00:00:00 2001
From: =?utf8?q?Ville=20Syrj=C3=A4l=C3=A4?= <ville.syrjala@linux.intel.com>
Date: Sat, 28 Jun 2014 02:04:08 +0300
Subject: [PATCH] drm/i915: Add chv cmnlane power wells
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CHV has two display PHYs so there are also two cmnlane power wells. Add
the approriate code to power the wells up/down.

Like on VLV we do the cmnreset assert/deassert and the DPLL refclock
enabling at approriate times.

This code actually works on my bsw.

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