From mboxrd@z Thu Jan 1 00:00:00 1970 From: Wenyou Yang Subject: [PATCH v5 1/2] media: ov7740: Document device tree bindings Date: Tue, 28 Nov 2017 13:22:58 +0800 Message-ID: <20171128052259.4957-2-wenyou.yang@microchip.com> References: <20171128052259.4957-1-wenyou.yang@microchip.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: In-Reply-To: <20171128052259.4957-1-wenyou.yang@microchip.com> Sender: linux-media-owner@vger.kernel.org To: Mauro Carvalho Chehab , Rob Herring , Mark Rutland Cc: linux-kernel@vger.kernel.org, Nicolas Ferre , devicetree@vger.kernel.org, Sakari Ailus , Jonathan Corbet , Hans Verkuil , linux-arm-kernel@lists.infradead.org, Linux Media Mailing List , Wenyou Yang List-Id: devicetree@vger.kernel.org Add the device tree binding documentation for the ov7740 sensor driver. Signed-off-by: Wenyou Yang --- Changes in v5: None Changes in v4: None 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>; + }; + }; + }; + }; -- 2.15.0