From patchwork Tue Jan 9 16:25:23 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jacopo Mondi X-Patchwork-Id: 10152881 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 3BB70602CA for ; Tue, 9 Jan 2018 16:33:21 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 483EB20453 for ; Tue, 9 Jan 2018 16:33:21 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 3D06528534; Tue, 9 Jan 2018 16:33:21 +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=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id B9FFC20453 for ; Tue, 9 Jan 2018 16:33:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1759267AbeAIQ0J (ORCPT ); Tue, 9 Jan 2018 11:26:09 -0500 Received: from relay2-d.mail.gandi.net ([217.70.183.194]:38719 "EHLO relay2-d.mail.gandi.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753483AbeAIQ0F (ORCPT ); Tue, 9 Jan 2018 11:26:05 -0500 Received: from w540.lan (unknown [IPv6:2001:b07:6442:1ac4:a801:341c:f969:b578]) (Authenticated sender: jacopo@jmondi.org) by relay2-d.mail.gandi.net (Postfix) with ESMTPSA id 2F1E5C5AB9; Tue, 9 Jan 2018 17:25:57 +0100 (CET) From: Jacopo Mondi To: laurent.pinchart@ideasonboard.com, magnus.damm@gmail.com, geert@glider.be, mchehab@kernel.org, hverkuil@xs4all.nl, festevam@gmail.com, sakari.ailus@iki.fi, robh+dt@kernel.org, mark.rutland@arm.com Cc: Jacopo Mondi , linux-renesas-soc@vger.kernel.org, linux-media@vger.kernel.org, linux-sh@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v4 1/9] dt-bindings: media: Add Renesas CEU bindings Date: Tue, 9 Jan 2018 17:25:23 +0100 Message-Id: <1515515131-13760-2-git-send-email-jacopo+renesas@jmondi.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1515515131-13760-1-git-send-email-jacopo+renesas@jmondi.org> References: <1515515131-13760-1-git-send-email-jacopo+renesas@jmondi.org> Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Add bindings documentation for Renesas Capture Engine Unit (CEU). Signed-off-by: Jacopo Mondi Reviewed-by: Rob Herring Reviewed-by: Laurent Pinchart --- .../devicetree/bindings/media/renesas,ceu.txt | 81 ++++++++++++++++++++++ 1 file changed, 81 insertions(+) create mode 100644 Documentation/devicetree/bindings/media/renesas,ceu.txt diff --git a/Documentation/devicetree/bindings/media/renesas,ceu.txt b/Documentation/devicetree/bindings/media/renesas,ceu.txt new file mode 100644 index 0000000..590ee27 --- /dev/null +++ b/Documentation/devicetree/bindings/media/renesas,ceu.txt @@ -0,0 +1,81 @@ +Renesas Capture Engine Unit (CEU) +---------------------------------------------- + +The Capture Engine Unit is the image capture interface found in the Renesas +SH Mobile and RZ SoCs. + +The interface supports a single parallel input with data bus width of 8 or 16 +bits. + +Required properties: +- compatible: Shall be "renesas,r7s72100-ceu" for CEU units found in RZ/A1-H + and RZ/A1-M SoCs. +- reg: Registers address base and size. +- interrupts: The interrupt specifier. + +The CEU supports a single parallel input and should contain a single 'port' +subnode with a single 'endpoint'. Connection to input devices are modeled +according to the video interfaces OF bindings specified in: +Documentation/devicetree/bindings/media/video-interfaces.txt + +Optional endpoint properties applicable to parallel input bus described in +the above mentioned "video-interfaces.txt" file are supported. + +- hsync-active: Active state of the HSYNC signal, 0/1 for LOW/HIGH respectively. + If property is not present, default is active high. +- vsync-active: Active state of the VSYNC signal, 0/1 for LOW/HIGH respectively. + If property is not present, default is active high. + +Example: + +The example describes the connection between the Capture Engine Unit and an +OV7670 image sensor connected to i2c1 interface. + +ceu: ceu@e8210000 { + reg = <0xe8210000 0x209c>; + compatible = "renesas,r7s72100-ceu"; + interrupts = ; + + pinctrl-names = "default"; + pinctrl-0 = <&vio_pins>; + + status = "okay"; + + port { + ceu_in: endpoint { + remote-endpoint = <&ov7670_out>; + + hsync-active = <1>; + vsync-active = <0>; + }; + }; +}; + +i2c1: i2c@fcfee400 { + pinctrl-names = "default"; + pinctrl-0 = <&i2c1_pins>; + + status = "okay"; + + clock-frequency = <100000>; + + ov7670: camera@21 { + compatible = "ovti,ov7670"; + reg = <0x21>; + + pinctrl-names = "default"; + pinctrl-0 = <&vio_pins>; + + reset-gpios = <&port3 11 GPIO_ACTIVE_LOW>; + powerdown-gpios = <&port3 12 GPIO_ACTIVE_HIGH>; + + port { + ov7670_out: endpoint { + remote-endpoint = <&ceu_in>; + + hsync-active = <1>; + vsync-active = <0>; + }; + }; + }; +};