From mboxrd@z Thu Jan  1 00:00:00 1970
From: Paulo Zanoni <paulo.r.zanoni@intel.com>
Subject: Re: [PATCH 2/4] drm/i915: add intel_calc_cdclk()
Date: Fri, 17 Feb 2017 18:37:23 -0200
Message-ID: <1487363843.16234.47.camel@intel.com>
References: <1487337727-9813-1-git-send-email-paulo.r.zanoni@intel.com>
 <1487337727-9813-3-git-send-email-paulo.r.zanoni@intel.com>
 <20170217134920.GP31595@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 mga11.intel.com (mga11.intel.com [192.55.52.93])
 by gabe.freedesktop.org (Postfix) with ESMTPS id 5C3856E080
 for <intel-gfx@lists.freedesktop.org>; Fri, 17 Feb 2017 20:37:27 +0000 (UTC)
In-Reply-To: <20170217134920.GP31595@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: Ville =?ISO-8859-1?Q?Syrj=E4l=E4?= <ville.syrjala@linux.intel.com>
Cc: intel-gfx@lists.freedesktop.org
List-Id: intel-gfx@lists.freedesktop.org
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==