From patchwork Wed Aug 28 18:36:42 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Fabrizio Castro X-Patchwork-Id: 11119623 X-Patchwork-Delegate: geert@linux-m68k.org Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 07AAE112C for ; Wed, 28 Aug 2019 18:37:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E5C4F2339E for ; Wed, 28 Aug 2019 18:37:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727101AbfH1Sh2 (ORCPT ); Wed, 28 Aug 2019 14:37:28 -0400 Received: from relmlor1.renesas.com ([210.160.252.171]:25098 "EHLO relmlie5.idc.renesas.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726777AbfH1Sh1 (ORCPT ); Wed, 28 Aug 2019 14:37:27 -0400 X-IronPort-AV: E=Sophos;i="5.64,442,1559487600"; d="scan'208";a="25166351" Received: from unknown (HELO relmlir5.idc.renesas.com) ([10.200.68.151]) by relmlie5.idc.renesas.com with ESMTP; 29 Aug 2019 03:37:25 +0900 Received: from fabrizio-dev.ree.adwin.renesas.com (unknown [10.226.36.196]) by relmlir5.idc.renesas.com (Postfix) with ESMTP id CF3CD400A896; Thu, 29 Aug 2019 03:37:21 +0900 (JST) From: Fabrizio Castro To: Rob Herring , Mark Rutland Cc: Fabrizio Castro , Simon Horman , Geert Uytterhoeven , Magnus Damm , linux-renesas-soc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Chris Paterson , Biju Das , Laurent Pinchart , Kieran Bingham , Jacopo Mondi , sam@ravnborg.org Subject: [PATCH v3 8/8] [HACK] arm64: dts: renesas: draak: Enable LVDS dual-link operation Date: Wed, 28 Aug 2019 19:36:42 +0100 Message-Id: <1567017402-5895-9-git-send-email-fabrizio.castro@bp.renesas.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1567017402-5895-1-git-send-email-fabrizio.castro@bp.renesas.com> References: <1567017402-5895-1-git-send-email-fabrizio.castro@bp.renesas.com> Sender: linux-renesas-soc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-renesas-soc@vger.kernel.org Enable and connect the second LVDS encoder to the second LVDS input of the THC63LVD1024 for dual-link LVDS operation. This requires changing the default settings of SW45 and SW47 to OFF and ON respectively. This patch is based on Laurent's dual-LVDS work: https://patchwork.kernel.org/patch/10965045/ Signed-off-by: Fabrizio Castro --- v2->v3: * new patch Geert, no need to review this patch unless they like the idea behind this series. Thanks, Fab --- arch/arm64/boot/dts/renesas/r8a77995-draak.dts | 26 +++++++++++++++++++------- 1 file changed, 19 insertions(+), 7 deletions(-) diff --git a/arch/arm64/boot/dts/renesas/r8a77995-draak.dts b/arch/arm64/boot/dts/renesas/r8a77995-draak.dts index 67634cb..b4b8cde 100644 --- a/arch/arm64/boot/dts/renesas/r8a77995-draak.dts +++ b/arch/arm64/boot/dts/renesas/r8a77995-draak.dts @@ -77,11 +77,20 @@ port@0 { reg = <0>; - thc63lvd1024_in: endpoint { + dual-lvds-even-pixels; + thc63lvd1024_in0: endpoint { remote-endpoint = <&lvds0_out>; }; }; + port@1 { + reg = <1>; + dual-lvds-odd-pixels; + thc63lvd1024_in1: endpoint { + remote-endpoint = <&lvds1_out>; + }; + }; + port@2 { reg = <2>; thc63lvd1024_out: endpoint { @@ -368,24 +377,27 @@ ports { port@1 { lvds0_out: endpoint { - remote-endpoint = <&thc63lvd1024_in>; + remote-endpoint = <&thc63lvd1024_in0>; }; }; }; }; &lvds1 { - /* - * Even though the LVDS1 output is not connected, the encoder must be - * enabled to supply a pixel clock to the DU for the DPAD output when - * LVDS0 is in use. - */ status = "okay"; clocks = <&cpg CPG_MOD 727>, <&x12_clk>, <&extal_clk>; clock-names = "fck", "dclkin.0", "extal"; + + ports { + port@1 { + lvds1_out: endpoint { + remote-endpoint = <&thc63lvd1024_in1>; + }; + }; + }; }; &ohci0 {