From patchwork Tue Feb 20 23:10:31 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Laurent Pinchart X-Patchwork-Id: 10231005 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id CA40B601E7 for ; Tue, 20 Feb 2018 23:10:13 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id B4B3C289AE for ; Tue, 20 Feb 2018 23:10:13 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id B336D289BF; Tue, 20 Feb 2018 23:10:13 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.1 required=2.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_MED,T_DKIM_INVALID autolearn=ham version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 11D77289BB for ; Tue, 20 Feb 2018 23:10:12 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id C11136EFA6; Tue, 20 Feb 2018 23:10:11 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from galahad.ideasonboard.com (galahad.ideasonboard.com [IPv6:2001:4b98:dc2:45:216:3eff:febb:480d]) by gabe.freedesktop.org (Postfix) with ESMTPS id 3DA236EFA7 for ; Tue, 20 Feb 2018 23:10:10 +0000 (UTC) Received: from avalon.bb.dnainternet.fi (dfj612ybrt5fhg77mgycy-3.rev.dnainternet.fi [IPv6:2001:14ba:21f5:5b00:2e86:4862:ef6a:2804]) by galahad.ideasonboard.com (Postfix) with ESMTPSA id A96F2202D7; Wed, 21 Feb 2018 00:08:27 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1519168107; bh=tatSscnMI/unkd3JPiD89ublZnUqnG63TRPvQYb9spY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=G8ljI3T8aI1Z7Sx2k7+Ph1KAZju+5/MSVvC67l4jc6WUk6dNV8OFTKtHWFdHLQxNA U0LlgUJc41hVG63pkOT/q8XCA2uf23JcwTWbO2xTZIXCpa0PfOIUVF7Gr+g/ztZmYb 6Q7ZIPRd3B1ZuouhDXTnrfP/IMBeMQ37liGqF1hQ= From: Laurent Pinchart To: dri-devel@lists.freedesktop.org Subject: [PATCH v4 01/16] dt-bindings: display: renesas: Add R-Car LVDS encoder DT bindings Date: Wed, 21 Feb 2018 01:10:31 +0200 Message-Id: <20180220231046.32638-2-laurent.pinchart+renesas@ideasonboard.com> X-Mailer: git-send-email 2.16.1 In-Reply-To: <20180220231046.32638-1-laurent.pinchart+renesas@ideasonboard.com> References: <20180220231046.32638-1-laurent.pinchart+renesas@ideasonboard.com> X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-renesas-soc@vger.kernel.org, devicetree@vger.kernel.org MIME-Version: 1.0 Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Virus-Scanned: ClamAV using ClamSMTP The Renesas R-Car Gen2 and Gen3 SoCs have internal LVDS encoders. Add corresponding device tree bindings. Signed-off-by: Laurent Pinchart Reviewed-by: Rob Herring --- Changes since v1: - Move the SoC name before the IP name in compatible strings - Rename parallel input to parallel RGB input - Fixed "renesas,r8a7743-lvds" description - Document the resets property - Fixed typo --- .../bindings/display/bridge/renesas,lvds.txt | 56 ++++++++++++++++++++++ MAINTAINERS | 1 + 2 files changed, 57 insertions(+) create mode 100644 Documentation/devicetree/bindings/display/bridge/renesas,lvds.txt diff --git a/Documentation/devicetree/bindings/display/bridge/renesas,lvds.txt b/Documentation/devicetree/bindings/display/bridge/renesas,lvds.txt new file mode 100644 index 000000000000..2b19ce51ec07 --- /dev/null +++ b/Documentation/devicetree/bindings/display/bridge/renesas,lvds.txt @@ -0,0 +1,56 @@ +Renesas R-Car LVDS Encoder +========================== + +These DT bindings describe the LVDS encoder embedded in the Renesas R-Car +Gen2, R-Car Gen3 and RZ/G SoCs. + +Required properties: + +- compatible : Shall contain one of + - "renesas,r8a7743-lvds" for R8A7743 (RZ/G1M) compatible LVDS encoders + - "renesas,r8a7790-lvds" for R8A7790 (R-Car H2) compatible LVDS encoders + - "renesas,r8a7791-lvds" for R8A7791 (R-Car M2-W) compatible LVDS encoders + - "renesas,r8a7793-lvds" for R8A7791 (R-Car M2-N) compatible LVDS encoders + - "renesas,r8a7795-lvds" for R8A7795 (R-Car H3) compatible LVDS encoders + - "renesas,r8a7796-lvds" for R8A7796 (R-Car M3-W) compatible LVDS encoders + +- reg: Base address and length for the memory-mapped registers +- clocks: A phandle + clock-specifier pair for the functional clock +- resets: A phandle + reset specifier for the module reset + +Required nodes: + +The LVDS encoder has two video ports. Their connections are modelled using the +OF graph bindings specified in Documentation/devicetree/bindings/graph.txt. + +- Video port 0 corresponds to the parallel RGB input +- Video port 1 corresponds to the LVDS output + +Each port shall have a single endpoint. + + +Example: + + lvds0: lvds@feb90000 { + compatible = "renesas,r8a7790-lvds"; + reg = <0 0xfeb90000 0 0x1c>; + clocks = <&cpg CPG_MOD 726>; + resets = <&cpg 726>; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + lvds0_in: endpoint { + remote-endpoint = <&du_out_lvds0>; + }; + }; + port@1 { + reg = <1>; + lvds0_out: endpoint { + }; + }; + }; + }; diff --git a/MAINTAINERS b/MAINTAINERS index 2afba909724c..13c8ec11135a 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -4744,6 +4744,7 @@ F: drivers/gpu/drm/rcar-du/ F: drivers/gpu/drm/shmobile/ F: include/linux/platform_data/shmob_drm.h F: Documentation/devicetree/bindings/display/bridge/renesas,dw-hdmi.txt +F: Documentation/devicetree/bindings/display/bridge/renesas,lvds.txt F: Documentation/devicetree/bindings/display/renesas,du.txt DRM DRIVERS FOR ROCKCHIP