From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jani Nikula <jani.nikula@linux.intel.com>
Subject: Re: [PATCH v2 2/2] drm/i915/intel_dsi: Read back pclk
 set by GOP and use that as pclk v2
Date: Fri, 19 Oct 2018 12:20:07 +0300
Message-ID: <87bm7qguns.fsf@intel.com>
References: <20181017110943.30770-1-hdegoede@redhat.com>
 <20181017110943.30770-3-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>
In-Reply-To: <20181017110943.30770-3-hdegoede@redhat.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: Hans de Goede <j.w.r.degoede@gmail.com>, Joonas Lahtinen <joonas.lahtinen@linux.intel.com>, Rodrigo Vivi <rodrigo.vivi@intel.com>, Ville =?utf-8?B?U3lyasOkbMOk?= <ville.syrjala@linux.intel.com>, Daniel Vetter <daniel@ffwll.ch>
Cc: Hans de Goede <hdegoede@redhat.com>, intel-gfx <intel-gfx@lists.freedesktop.org>, dri-devel@lists.freedesktop.org
List-Id: intel-gfx@lists.freedesktop.org
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