From patchwork Thu Feb 22 13:13:33 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Laurent Pinchart X-Patchwork-Id: 876676 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=devicetree-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (1024-bit key; unprotected) header.d=ideasonboard.com header.i=@ideasonboard.com header.b="L3fdWg0d"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 3znFCJ5M8vz9sWK for ; Fri, 23 Feb 2018 00:13:00 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932441AbeBVNM5 (ORCPT ); Thu, 22 Feb 2018 08:12:57 -0500 Received: from galahad.ideasonboard.com ([185.26.127.97]:34081 "EHLO galahad.ideasonboard.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932434AbeBVNM4 (ORCPT ); Thu, 22 Feb 2018 08:12:56 -0500 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 26322202D7; Thu, 22 Feb 2018 14:11:12 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1519305072; bh=tatSscnMI/unkd3JPiD89ublZnUqnG63TRPvQYb9spY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=L3fdWg0d2QGvyRvmVo7XSvkHk7b1YEPCJ2jssC1PsN5IpH84pTGlknWTyBLkmyPQW 4EBmCBpJT6D7OWEGfoBP0JG2WAcC284CkU5KY6Lt3PQ+uy97DgLODBD9cYG4FAfDVq BV+T04Zn3fHwD2hVVRGLB0fzn3jt3aFG8V++s52U= From: Laurent Pinchart To: dri-devel@lists.freedesktop.org Cc: linux-renesas-soc@vger.kernel.org, devicetree@vger.kernel.org Subject: [PATCH v6 1/4] dt-bindings: display: renesas: Add R-Car LVDS encoder DT bindings Date: Thu, 22 Feb 2018 15:13:33 +0200 Message-Id: <20180222131336.7712-2-laurent.pinchart+renesas@ideasonboard.com> X-Mailer: git-send-email 2.16.1 In-Reply-To: <20180222131336.7712-1-laurent.pinchart+renesas@ideasonboard.com> References: <20180222131336.7712-1-laurent.pinchart+renesas@ideasonboard.com> Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org 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 Reviewed-by: Niklas Söderlund --- 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