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: 5474441 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 5FED2BEEA8 for ; Thu, 11 Dec 2014 07:44:10 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 9271220121 for ; Thu, 11 Dec 2014 07:44:09 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id C2A732011D for ; Thu, 11 Dec 2014 07:44:08 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1XyyNp-0007oO-IG; Thu, 11 Dec 2014 07:41:57 +0000 Received: from eusmtp01.atmel.com ([212.144.249.242]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1XyyNh-0007Rk-Ee for linux-arm-kernel@lists.infradead.org; Thu, 11 Dec 2014 07:41:50 +0000 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: , 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 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20141210_234149_838956_430F36DF X-CRM114-Status: UNSURE ( 8.95 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -0.0 (/) Cc: devicetree@vger.kernel.org, Josh Wu , laurent.pinchart@ideasonboard.com, s.nawrocki@samsung.com, festevam@gmail.com, linux-arm-kernel@lists.infradead.org, m.chehab@samsung.com X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-4.2 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_MED, 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>; + }; + }; + }; + };