From mboxrd@z Thu Jan  1 00:00:00 1970
From: Rodrigo Vivi <rodrigo.vivi@intel.com>
Subject: Re: [PATCH v3] drm/i915/dp: Give up link training clock
 recovery after 10 failed attempts
Date: Mon, 16 Jul 2018 16:40:30 -0700
Message-ID: <20180716234030.GG2324@intel.com>
References: <1531764885-18185-1-git-send-email-nathan.d.ciobanu@linux.intel.com>
 <20180716223458.GB2324@intel.com> <20180716232323.GA19088@nc-new>
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 mga07.intel.com (mga07.intel.com [134.134.136.100])
 by gabe.freedesktop.org (Postfix) with ESMTPS id 0E9B76E5BA
 for <intel-gfx@lists.freedesktop.org>; Mon, 16 Jul 2018 23:40:32 +0000 (UTC)
Content-Disposition: inline
In-Reply-To: <20180716232323.GA19088@nc-new>
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: Nathan Ciobanu <nathan.d.ciobanu@linux.intel.com>
Cc: intel-gfx@lists.freedesktop.org, dhinakaran.pandiyan@intel.com, marc.herbert@intel.com
List-Id: intel-gfx@lists.freedesktop.org
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