From mboxrd@z Thu Jan  1 00:00:00 1970
From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Subject: Re: [PATCH v2 7/8] v4l: vsp1: Integrate DISCOM in display pipeline
Date: Sat, 28 Apr 2018 19:57:19 +0300
Message-ID: <5979699.LE7rGvgjD7@avalon>
References: <20180422223430.16407-1-laurent.pinchart+renesas@ideasonboard.com>
 <20180422223430.16407-8-laurent.pinchart+renesas@ideasonboard.com>
 <20180428110026.GE18201@w540>
Mime-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: base64
Return-path: <dri-devel-bounces@lists.freedesktop.org>
Received: from perceval.ideasonboard.com (perceval.ideasonboard.com
 [IPv6:2001:4b98:dc2:55:216:3eff:fef7:d647])
 by gabe.freedesktop.org (Postfix) with ESMTPS id C46696E0AC
 for <dri-devel@lists.freedesktop.org>; Sat, 28 Apr 2018 16:57:04 +0000 (UTC)
In-Reply-To: <20180428110026.GE18201@w540>
List-Unsubscribe: <https://lists.freedesktop.org/mailman/options/dri-devel>,
 <mailto:dri-devel-request@lists.freedesktop.org?subject=unsubscribe>
List-Archive: <https://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: <https://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: jacopo mondi <jacopo@jmondi.org>
Cc: linux-renesas-soc@vger.kernel.org, Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>, Kieran Bingham <kieran.bingham@ideasonboard.com>, dri-devel@lists.freedesktop.org, linux-media@vger.kernel.org
List-Id: dri-devel@lists.freedesktop.org
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