Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932094AbdL1OBv (ORCPT ); Thu, 28 Dec 2017 09:01:51 -0500 Received: from relay5-d.mail.gandi.net ([217.70.183.197]:55672 "EHLO relay5-d.mail.gandi.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753648AbdL1OBj (ORCPT ); Thu, 28 Dec 2017 09:01:39 -0500 X-Originating-IP: 31.159.61.63 From: Jacopo Mondi To: laurent.pinchart@ideasonboard.com, magnus.damm@gmail.com, geert@glider.be, mchehab@kernel.org, hverkuil@xs4all.nl, 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 v2 1/9] dt-bindings: media: Add Renesas CEU bindings Date: Thu, 28 Dec 2017 15:01:13 +0100 Message-Id: <1514469681-15602-2-git-send-email-jacopo+renesas@jmondi.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1514469681-15602-1-git-send-email-jacopo+renesas@jmondi.org> References: <1514469681-15602-1-git-send-email-jacopo+renesas@jmondi.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2639 Lines: 101 Add bindings documentation for Renesas Capture Engine Unit (CEU). Signed-off-by: Jacopo Mondi --- .../devicetree/bindings/media/renesas,ceu.txt | 85 ++++++++++++++++++++++ 1 file changed, 85 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..f45628e --- /dev/null +++ b/Documentation/devicetree/bindings/media/renesas,ceu.txt @@ -0,0 +1,85 @@ +Renesas Capture Engine Unit (CEU) +---------------------------------------------- + +The Capture Engine Unit is the image capture interface found on Renesas +RZ chip series and on SH Mobile ones. + +The interface supports a single parallel input with data bus width up to +8/16 bits. + +Required properties: +- compatible + Must be one of: + - "renesas,ceu" + - "renesas,r7s72100-ceu" +- reg + Physical address base and size. +- interrupts + The interrupt specifier. +- pinctrl-names, pinctrl-0 + phandle of pin controller sub-node configuring pins for CEU operations. +- remote-endpoint + phandle to an 'endpoint' subnode of a remote device node. + +CEU supports a single parallel input and should contain a single 'port' subnode +with a single 'endpoint'. Optional endpoint properties applicable to parallel +input bus described in "video-interfaces.txt" supported by this driver are: + +- hsync-active + active state of the HSYNC signal, 0/1 for LOW/HIGH respectively. +- vsync-active + active state of the VSYNC signal, 0/1 for LOW/HIGH respectively. + +Example: + +The example describes the connection between the Capture Engine Unit and an +OV7670 image sensor sitting on bus i2c1. + +ceu: ceu@e8210000 { + reg = <0xe8210000 0x209c>; + compatible = "renesas,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>; + }; + }; + }; +}; -- 2.7.4