From baccd4586ed948569207de83f28772376d5c3772 Mon Sep 17 00:00:00 2001
From: Deepak S <deepak.s@linux.intel.com>
Date: Thu, 15 May 2014 20:58:09 +0300
Subject: [PATCH] drm/i915: Enable PM Interrupts target via Display Interface.
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In BDW, Apart from unmasking up/down threshold interrupts. we need
to umask bit 32 of PM_INTRMASK to route interrupts to target via Display
Interface.

v2: Add (1<<31) mask (Ville)

v3: Add Gen check for the mask (ville)

Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Deepak S <deepak.s@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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