From mboxrd@z Thu Jan  1 00:00:00 1970
From: Ville =?iso-8859-1?Q?Syrj=E4l=E4?= <ville.syrjala@linux.intel.com>
Subject: Re: [PATCH 04/22] drm/i915/tgl: Add hpd interrupt
 handling
Date: Fri, 19 Jul 2019 20:14:40 +0300
Message-ID: <20190719171440.GS5942@intel.com>
References: <20190713010940.17711-1-lucas.demarchi@intel.com>
 <20190713010940.17711-5-lucas.demarchi@intel.com>
 <20190719134745.GM5942@intel.com>
 <20190719164516.us2xnopbumlybre5@ldmartin-desk1>
 <20190719170847.GR5942@intel.com>
Mime-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: base64
Return-path: <intel-gfx-bounces@lists.freedesktop.org>
Received: from mga06.intel.com (mga06.intel.com [134.134.136.31])
 by gabe.freedesktop.org (Postfix) with ESMTPS id C2A606E84B
 for <intel-gfx@lists.freedesktop.org>; Fri, 19 Jul 2019 17:14:47 +0000 (UTC)
Content-Disposition: inline
In-Reply-To: <20190719170847.GR5942@intel.com>
List-Unsubscribe: <https://lists.freedesktop.org/mailman/options/intel-gfx>,
 <mailto:intel-gfx-request@lists.freedesktop.org?subject=unsubscribe>
List-Archive: <https://lists.freedesktop.org/archives/intel-gfx>
List-Post: <mailto:intel-gfx@lists.freedesktop.org>
List-Help: <mailto:intel-gfx-request@lists.freedesktop.org?subject=help>
List-Subscribe: <https://lists.freedesktop.org/mailman/listinfo/intel-gfx>,
 <mailto:intel-gfx-request@lists.freedesktop.org?subject=subscribe>
Errors-To: intel-gfx-bounces@lists.freedesktop.org
Sender: "Intel-gfx" <intel-gfx-bounces@lists.freedesktop.org>
To: Lucas De Marchi <lucas.demarchi@intel.com>
Cc: intel-gfx@lists.freedesktop.org
List-Id: intel-gfx@lists.freedesktop.org
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