From 63c88d2204bb33d060e22318b3d50162b7019add Mon Sep 17 00:00:00 2001
From: Imre Deak <imre.deak@intel.com>
Date: Mon, 20 Jul 2015 14:43:39 -0700
Subject: [PATCH] drm/i915/bxt: add support for HPD long/short pulse detection
 on HPD_PORT_A pin

This is a requirement for enabling display port HPD support on the port
A HPD pin. This support is to be added by follow-up patches.

Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Sonika Jindal <sonika.jindal@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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