From mboxrd@z Thu Jan  1 00:00:00 1970
From: Hans de Goede <j.w.r.degoede@gmail.com>
Subject: [PATCH] drm/i915: Fix DSI panels with v1 MIPI sequences
 without a DEASSERT sequence v2
Date: Fri, 26 Jan 2018 08:52:07 +0100
Message-ID: <20180126075207.311-1-hdegoede@redhat.com>
Mime-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: base64
Return-path: <intel-gfx-bounces@lists.freedesktop.org>
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: Jani Nikula <jani.nikula@linux.intel.com>, Joonas Lahtinen <joonas.lahtinen@linux.intel.com>, Rodrigo Vivi <rodrigo.vivi@intel.com>, =?UTF-8?q?Ville=20Syrj=C3=A4l=C3=A4?= <ville.syrjala@linux.intel.com>
Cc: Hans de Goede <hdegoede@redhat.com>, intel-gfx <intel-gfx@lists.freedesktop.org>, dri-devel@lists.freedesktop.org, Jan-Michael Brummer <jan.brummer@tabos.org>
List-Id: intel-gfx@lists.freedesktop.org
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