From patchwork Tue Jan 16 21:44:53 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jacopo Mondi X-Patchwork-Id: 861911 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=) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 3zLkPw2cR8z9s7M for ; Wed, 17 Jan 2018 08:49:08 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751636AbeAPVpl (ORCPT ); Tue, 16 Jan 2018 16:45:41 -0500 Received: from relay4-d.mail.gandi.net ([217.70.183.196]:58975 "EHLO relay4-d.mail.gandi.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751280AbeAPVph (ORCPT ); Tue, 16 Jan 2018 16:45:37 -0500 Received: from w540.lan (unknown [IPv6:2001:b07:6442:1ac4:f04d:748c:47f9:399c]) (Authenticated sender: jacopo@jmondi.org) by relay4-d.mail.gandi.net (Postfix) with ESMTPSA id AA3BA17209D; Tue, 16 Jan 2018 22:45:29 +0100 (CET) From: Jacopo Mondi To: laurent.pinchart@ideasonboard.com, magnus.damm@gmail.com, geert@glider.be, hverkuil@xs4all.nl, mchehab@kernel.org, festevam@gmail.com, sakari.ailus@iki.fi, robh+dt@kernel.org, mark.rutland@arm.com, pombredanne@nexb.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 v6 1/9] dt-bindings: media: Add Renesas CEU bindings Date: Tue, 16 Jan 2018 22:44:53 +0100 Message-Id: <1516139101-7835-2-git-send-email-jacopo+renesas@jmondi.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1516139101-7835-1-git-send-email-jacopo+renesas@jmondi.org> References: <1516139101-7835-1-git-send-email-jacopo+renesas@jmondi.org> Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Add bindings documentation for Renesas Capture Engine Unit (CEU). Signed-off-by: Jacopo Mondi Reviewed-by: Rob Herring Reviewed-by: Laurent Pinchart Acked-by: Hans Verkuil Acked-by: Sakari Ailus --- .../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>; + }; + }; + }; +};