From mboxrd@z Thu Jan  1 00:00:00 1970
From: Inki Dae <inki.dae@samsung.com>
Subject: Re: [PATCH v3] drm/exynos: dsi: check whether dsi is enabled before
 sending data
Date: Thu, 11 Jun 2015 23:52:52 +0900
Message-ID: <5579A0C4.4060807@samsung.com>
References: <1433819945-7346-1-git-send-email-human.hwang@samsung.com>
Mime-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: base64
Return-path: <dri-devel-bounces@lists.freedesktop.org>
In-reply-to: <1433819945-7346-1-git-send-email-human.hwang@samsung.com>
List-Unsubscribe: <http://lists.freedesktop.org/mailman/options/dri-devel>,
 <mailto:dri-devel-request@lists.freedesktop.org?subject=unsubscribe>
List-Archive: <http://lists.freedesktop.org/archives/dri-devel>
List-Post: <mailto:dri-devel@lists.freedesktop.org>
List-Help: <mailto:dri-devel-request@lists.freedesktop.org?subject=help>
List-Subscribe: <http://lists.freedesktop.org/mailman/listinfo/dri-devel>,
 <mailto:dri-devel-request@lists.freedesktop.org?subject=subscribe>
Errors-To: dri-devel-bounces@lists.freedesktop.org
Sender: "dri-devel" <dri-devel-bounces@lists.freedesktop.org>
To: Hyungwon Hwang <human.hwang@samsung.com>
Cc: linux-samsung-soc@vger.kernel.org, sw0312.kim@samsung.com, dri-devel@lists.freedesktop.org
List-Id: linux-samsung-soc@vger.kernel.org
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==