From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id AE95FC04AB6 for ; Tue, 28 May 2019 14:13:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 74C362081C for ; Tue, 28 May 2019 14:13:22 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=ideasonboard.com header.i=@ideasonboard.com header.b="aNM9B/r3" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726683AbfE1ONW (ORCPT ); Tue, 28 May 2019 10:13:22 -0400 Received: from perceval.ideasonboard.com ([213.167.242.64]:48942 "EHLO perceval.ideasonboard.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726532AbfE1ONW (ORCPT ); Tue, 28 May 2019 10:13:22 -0400 Received: from pendragon.ideasonboard.com (85-76-65-42-nat.elisa-mobile.fi [85.76.65.42]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id 344FEFA6; Tue, 28 May 2019 16:13:13 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1559052800; bh=FZ8tKX+2q1d7L1Zf9S1cHwyrJV63lrUPbAQjyzA0qCM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=aNM9B/r3o8jlujv6PAOrZvBaBXBTZ8opUqlV39Ib12AX0LOO1LHAxLOu/Z7Hsto+g 4E6rljwJSYmIHP2WqiY5hfMbs6flW402kSN8r2+JJXgW1rNLbuYoV8bp7nLl/JesDJ 4ys2tgvHOXKGJtbZ0nIXpFg/KaP+0+FTitmI9fXs= From: Laurent Pinchart To: dri-devel@lists.freedesktop.org Cc: linux-renesas-soc@vger.kernel.org, Kieran Bingham , Jacopo Mondi , devicetree@vger.kernel.org, Jacopo Mondi Subject: [PATCH v3 04/10] dt-bindings: display: renesas: lvds: Add renesas,companion property Date: Tue, 28 May 2019 17:12:28 +0300 Message-Id: <20190528141234.15425-5-laurent.pinchart+renesas@ideasonboard.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190528141234.15425-1-laurent.pinchart+renesas@ideasonboard.com> References: <20190528141234.15425-1-laurent.pinchart+renesas@ideasonboard.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-renesas-soc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-renesas-soc@vger.kernel.org Add a new optional renesas,companion property to point to the companion LVDS encoder. This is used to support dual-link operation where the main LVDS encoder splits even-numbered and odd-numbered pixels between the two LVDS encoders. The new property doesn't control the mode of operation, it only describes the relationship between the master and companion LVDS encoders. Signed-off-by: Laurent Pinchart Reviewed-by: Jacopo Mondi Tested-by: Jacopo Mondi --- Changes since v2: - Clarify when the companion property is required or not allowed Changes since v1: - Fixed typo --- .../devicetree/bindings/display/bridge/renesas,lvds.txt | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/Documentation/devicetree/bindings/display/bridge/renesas,lvds.txt b/Documentation/devicetree/bindings/display/bridge/renesas,lvds.txt index 900a884ad9f5..2d24bd8cbec5 100644 --- a/Documentation/devicetree/bindings/display/bridge/renesas,lvds.txt +++ b/Documentation/devicetree/bindings/display/bridge/renesas,lvds.txt @@ -45,6 +45,13 @@ OF graph bindings specified in Documentation/devicetree/bindings/graph.txt. Each port shall have a single endpoint. +Optional properties: + +- renesas,companion : phandle to the companion LVDS encoder. This property is + mandatory for the first LVDS encoder on D3 and E3 SoCs, and shall point to + the second encoder to be used as a companion in dual-link mode. It shall not + be set for any other LVDS encoder. + Example: -- Regards, Laurent Pinchart