From patchwork Thu Dec 11 07:35:39 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Josh Wu X-Patchwork-Id: 5474411 Return-Path: X-Original-To: patchwork-linux-media@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 914629F2E8 for ; Thu, 11 Dec 2014 07:41:33 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id C21E82017D for ; Thu, 11 Dec 2014 07:41:32 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id D33C120173 for ; Thu, 11 Dec 2014 07:41:31 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S964887AbaLKHl3 (ORCPT ); Thu, 11 Dec 2014 02:41:29 -0500 Received: from eusmtp01.atmel.com ([212.144.249.242]:44556 "EHLO eusmtp01.atmel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S964878AbaLKHl2 (ORCPT ); Thu, 11 Dec 2014 02:41:28 -0500 Received: from apsmtp01.atmel.com (10.168.254.30) by eusmtp01.atmel.com (10.161.101.30) with Microsoft SMTP Server id 14.2.347.0; Thu, 11 Dec 2014 08:41:22 +0100 Received: from melon.corp.atmel.com (10.168.254.13) by apsmtp01.corp.atmel.com (10.168.254.30) with Microsoft SMTP Server id 14.2.347.0; Thu, 11 Dec 2014 15:39:40 +0800 From: Josh Wu To: , CC: , , , , , Josh Wu , Subject: [v3][PATCH 5/5] media: ov2640: dt: add the device tree binding document Date: Thu, 11 Dec 2014 15:35:39 +0800 Message-ID: <1418283339-16281-6-git-send-email-josh.wu@atmel.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1418283339-16281-1-git-send-email-josh.wu@atmel.com> References: <1418283339-16281-1-git-send-email-josh.wu@atmel.com> MIME-Version: 1.0 Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Add the document for ov2640 dt. Cc: devicetree@vger.kernel.org Signed-off-by: Josh Wu --- v2 -> v3: 1. fix incorrect description. 2. Add assigned-clocks & assigned-clock-rates. 3. resetb pin should be ACTIVE_LOW. v1 -> v2: 1. change the compatible string to be consistent with verdor file. 2. change the clock and pins' name. 3. add missed pinctrl in example. .../devicetree/bindings/media/i2c/ov2640.txt | 53 ++++++++++++++++++++++ 1 file changed, 53 insertions(+) create mode 100644 Documentation/devicetree/bindings/media/i2c/ov2640.txt diff --git a/Documentation/devicetree/bindings/media/i2c/ov2640.txt b/Documentation/devicetree/bindings/media/i2c/ov2640.txt new file mode 100644 index 0000000..958e120 --- /dev/null +++ b/Documentation/devicetree/bindings/media/i2c/ov2640.txt @@ -0,0 +1,53 @@ +* Omnivision ov2640 CMOS sensor + +The Omnivision OV2640 sensor support multiple resolutions output, such as +CIF, SVGA, UXGA. It also can support YUV422/420, RGB565/555 or raw RGB +output format. + +Required Properties: +- compatible: Must be "ovti,ov2640" +- clocks: reference to the xvclk input clock. It can be an external fixed + clock or a programmable clock from SoC. +- clock-names: Must be "xvclk". +- assigned-clocks: reference to the above 'clocks' property. +- assigned-clock-rates: reference to the clock frequency of xvclk. Typical + value is 25Mhz (25000000). + This clock should only have single user. Specifying + Conflicting rate configuration in multiple consumer + nodes for a shared clock is forbidden. + +Optional Properties: +- resetb-gpios: reference to the GPIO connected to the resetb pin, if any. +- pwdn-gpios: reference to the GPIO connected to the pwdn pin, if any. + +The device node must contain one 'port' child node for its digital output +video port, in accordance with the video interface bindings defined in +Documentation/devicetree/bindings/media/video-interfaces.txt. + +Example: + + i2c1: i2c@f0018000 { + ov2640: camera@0x30 { + compatible = "ovti,ov2640"; + reg = <0x30>; + + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_pck1 &pinctrl_ov2640_pwdn &pinctrl_ov2640_resetb>; + + resetb-gpios = <&pioE 24 GPIO_ACTIVE_LOW>; + pwdn-gpios = <&pioE 29 GPIO_ACTIVE_HIGH>; + + clocks = <&pck1>; + clock-names = "xvclk"; + + assigned-clocks = <&pck1>; + assigned-clock-rates = <25000000>; + + port { + ov2640_0: endpoint { + remote-endpoint = <&isi_0>; + bus-width = <8>; + }; + }; + }; + };