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 07/21] drm/i915: Allow enable/disable of
 DPLL0 around cdclk changes on SKL
Date: Thu, 19 May 2016 16:18:26 +0300
Message-ID: <20160519131826.GJ4329@intel.com>
References: <1463172100-24715-1-git-send-email-ville.syrjala@linux.intel.com>
 <1463172100-24715-8-git-send-email-ville.syrjala@linux.intel.com>
 <1463663080.12342.24.camel@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 mga02.intel.com (mga02.intel.com [134.134.136.20])
 by gabe.freedesktop.org (Postfix) with ESMTP id D543D6E995
 for <intel-gfx@lists.freedesktop.org>; Thu, 19 May 2016 13:20:01 +0000 (UTC)
Content-Disposition: inline
In-Reply-To: <1463663080.12342.24.camel@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: Imre Deak <imre.deak@intel.com>
Cc: intel-gfx@lists.freedesktop.org
List-Id: intel-gfx@lists.freedesktop.org
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