From mboxrd@z Thu Jan  1 00:00:00 1970
From: Imre Deak <imre.deak@intel.com>
Subject: [PATCH v3] drm/i915/bxt: Fix DSI HW state readout
Date: Thu, 24 Mar 2016 12:41:40 +0200
Message-ID: <1458816100-31269-1-git-send-email-imre.deak@intel.com>
References: <1458770210-16383-1-git-send-email-imre.deak@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 mga09.intel.com (mga09.intel.com [134.134.136.24])
 by gabe.freedesktop.org (Postfix) with ESMTP id B60376E963
 for <intel-gfx@lists.freedesktop.org>; Thu, 24 Mar 2016 10:41:43 +0000 (UTC)
In-Reply-To: <1458770210-16383-1-git-send-email-imre.deak@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: intel-gfx@lists.freedesktop.org
Cc: Jani Nikula <jani.nikula@intel.com>
List-Id: intel-gfx@lists.freedesktop.org
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