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=-9.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, USER_AGENT_NEOMUTT 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 AA0B5C04AB6 for ; Tue, 28 May 2019 09:27:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 88BFC2075B for ; Tue, 28 May 2019 09:27:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726889AbfE1J1n (ORCPT ); Tue, 28 May 2019 05:27:43 -0400 Received: from relay7-d.mail.gandi.net ([217.70.183.200]:35819 "EHLO relay7-d.mail.gandi.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726888AbfE1J1n (ORCPT ); Tue, 28 May 2019 05:27:43 -0400 X-Originating-IP: 2.224.242.101 Received: from uno.localdomain (2-224-242-101.ip172.fastwebnet.it [2.224.242.101]) (Authenticated sender: jacopo@jmondi.org) by relay7-d.mail.gandi.net (Postfix) with ESMTPSA id 49BAF20010; Tue, 28 May 2019 09:27:38 +0000 (UTC) Date: Tue, 28 May 2019 11:28:47 +0200 From: Jacopo Mondi To: Laurent Pinchart Cc: dri-devel@lists.freedesktop.org, linux-renesas-soc@vger.kernel.org, Kieran Bingham , devicetree@vger.kernel.org Subject: Re: [PATCH v2 04/10] dt-bindings: display: renesas: lvds: Add renesas,companion property Message-ID: <20190528092847.kxhhq7hevforddb6@uno.localdomain> References: <20190511210702.18394-1-laurent.pinchart+renesas@ideasonboard.com> <20190511210702.18394-5-laurent.pinchart+renesas@ideasonboard.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="o263536bpxeaqxlm" Content-Disposition: inline In-Reply-To: <20190511210702.18394-5-laurent.pinchart+renesas@ideasonboard.com> User-Agent: NeoMutt/20180716 Sender: linux-renesas-soc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-renesas-soc@vger.kernel.org --o263536bpxeaqxlm Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Hi Laurent, On Sun, May 12, 2019 at 12:06:56AM +0300, Laurent Pinchart wrote: > 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 > --- > Changes since v1: > > - Fixed typo > --- > .../devicetree/bindings/display/bridge/renesas,lvds.txt | 6 ++++++ > 1 file changed, 6 insertions(+) > > diff --git a/Documentation/devicetree/bindings/display/bridge/renesas,lvds.txt b/Documentation/devicetree/bindings/display/bridge/renesas,lvds.txt > index 900a884ad9f5..f2cc01d54cbd 100644 > --- a/Documentation/devicetree/bindings/display/bridge/renesas,lvds.txt > +++ b/Documentation/devicetree/bindings/display/bridge/renesas,lvds.txt > @@ -45,6 +45,12 @@ 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 > + valid for the first LVDS encoder on D3 and E3 SoCs only, and points to the > + second encoder to be used as a companion in dual-link mode. > + If I got this right, the property does not enable dual-link operations by itself, but it needs the next bridge to be operating in dual link mode (ie. has both LVDS0 and LVDS1 output connected to its input ports). Is it worth describing it here (or at least clarify the the property alone does not enable dual link operations). Apart from that Reviewed-by: Jacopo Mondi Thanks j > > Example: > > -- > Regards, > > Laurent Pinchart > --o263536bpxeaqxlm Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEtcQ9SICaIIqPWDjAcjQGjxahVjwFAlzs/08ACgkQcjQGjxah VjwbRg//Xq8IhU73P6ciYEg0LzEj7uZQhWGQW8t5c0/ccUU/Db+fzYvMxaW2UwFl wEv8PPxfmBUkObeu5hKRXFi1NoZuOx7fXYQFloMIzkDZTq/6cSfOqO1SHhg+n9QP Gms+aJ8bmU9epGw5jHt6PvUvAmO//X7VSgzocvIOG9YnWA15bBw3HkjiH9gsmUTl 54/YaRKbdTEk9zgEvDvYkal+fz2l27P/askcy9yN35wKkIhxGWeQOTXt3RnoT289 yP7gOUBnk9PB4bct2IOh3LwMQaH1OIqn5eIfbL/5FotnsGfiYNHu+mbFLcH+K67x RWlC++O/j6DjGtQ2k33068GaIfMcgDDhVwgUHGKxt0JNoovsdeUwq8Wy7HZjhrHs UzDSPIgtQ5zrq0hyNJYjQ7QbENwTUxplGWX5fd6QAz+A+YHMRCjZvS/kkzqKucb2 hf3gIkWQDVSgYzxAp7pmZT5xKt61IbHpqhBdJVPduzifjGRLL20NbPXxGr5igWFC eHCeVvjohdj9mDAlTmFJ3/Yunbe8T6STHFRrtqEodDComF6XQZSc5nG8ejD6lKTi SfpQq+2HCjmN/M9Vfyrg0bfi/vmXDOihxY+4M0PX8Qe37B6iwvogX9cFDOC55Tqu eEGJAKW6y+jFDWI//qswELADsN7nqa0Ik5//ZQF2/Y7vgwn1S2s= =j2sp -----END PGP SIGNATURE----- --o263536bpxeaqxlm--