From patchwork Mon Oct 30 01:44:31 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wenyou Yang X-Patchwork-Id: 45216 Received: from vger.kernel.org ([209.132.180.67]) by www.linuxtv.org with esmtp (Exim 4.84_2) (envelope-from ) id 1e8zCn-0004VC-WB; Mon, 30 Oct 2017 01:49:34 +0000 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751948AbdJ3Bsp (ORCPT + 1 other); Sun, 29 Oct 2017 21:48:45 -0400 Received: from eusmtp01.atmel.com ([212.144.249.243]:6152 "EHLO eusmtp01.atmel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751940AbdJ3Bso (ORCPT ); Sun, 29 Oct 2017 21:48:44 -0400 Received: from apsmtp01.atmel.com (10.168.254.31) by eusmtp01.atmel.com (10.145.145.31) with Microsoft SMTP Server id 14.3.235.1; Mon, 30 Oct 2017 02:48:39 +0100 Received: from shaarm01.corp.atmel.com (10.168.254.13) by apsmtp01.atmel.com (10.168.254.31) with Microsoft SMTP Server id 14.3.235.1; Mon, 30 Oct 2017 09:55:01 +0800 From: Wenyou Yang To: Mauro Carvalho Chehab , Rob Herring , Mark Rutland CC: , Nicolas Ferre , , Sakari Ailus , Jonathan Corbet , Hans Verkuil , , "Linux Media Mailing List" , Wenyou Yang Subject: [PATCH v3 2/3] media: ov7740: Document device tree bindings Date: Mon, 30 Oct 2017 09:44:31 +0800 Message-ID: <20171030014432.24025-3-wenyou.yang@microchip.com> X-Mailer: git-send-email 2.13.0 In-Reply-To: <20171030014432.24025-1-wenyou.yang@microchip.com> References: <20171030014432.24025-1-wenyou.yang@microchip.com> MIME-Version: 1.0 Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org Add the device tree binding documentation for the ov7740 sensor driver. Signed-off-by: Wenyou Yang --- Changes in v3: - Explicitly document the "remote-endpoint" property. Changes in v2: None .../devicetree/bindings/media/i2c/ov7740.txt | 47 ++++++++++++++++++++++ 1 file changed, 47 insertions(+) create mode 100644 Documentation/devicetree/bindings/media/i2c/ov7740.txt diff --git a/Documentation/devicetree/bindings/media/i2c/ov7740.txt b/Documentation/devicetree/bindings/media/i2c/ov7740.txt new file mode 100644 index 000000000000..af781c3a5f0e --- /dev/null +++ b/Documentation/devicetree/bindings/media/i2c/ov7740.txt @@ -0,0 +1,47 @@ +* Omnivision OV7740 CMOS image sensor + +The Omnivision OV7740 image sensor supports multiple output image +size, such as VGA, and QVGA, CIF and any size smaller. It also +supports the RAW RGB and YUV output formats. + +The common video interfaces bindings (see video-interfaces.txt) should +be used to specify link to the image data receiver. The OV7740 device +node should contain one 'port' child node with an 'endpoint' subnode. + +Required Properties: +- compatible: "ovti,ov7740". +- reg: I2C slave address of the sensor. +- clocks: Reference to the xvclk input clock. +- clock-names: "xvclk". + +Optional Properties: +- reset-gpios: Rreference to the GPIO connected to the reset_b pin, + if any. Active low with pull-ip resistor. +- powerdown-gpios: Reference to the GPIO connected to the pwdn pin, + if any. Active high with pull-down resistor. + +Endpoint node mandatory properties: +- remote-endpoint: A phandle to the bus receiver's endpoint node. + +Example: + + i2c1: i2c@fc028000 { + ov7740: camera@21 { + compatible = "ovti,ov7740"; + reg = <0x21>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_sensor_power &pinctrl_sensor_reset>; + clocks = <&isc>; + clock-names = "xvclk"; + assigned-clocks = <&isc>; + assigned-clock-rates = <24000000>; + reset-gpios = <&pioA 43 GPIO_ACTIVE_LOW>; + powerdown-gpios = <&pioA 44 GPIO_ACTIVE_HIGH>; + + port { + ov7740_0: endpoint { + remote-endpoint = <&isc_0>; + }; + }; + }; + };