From mboxrd@z Thu Jan 1 00:00:00 1970 From: Josh Wu Subject: [PATCH v5 4/4] media: ov2640: dt: add the device tree binding document Date: Tue, 10 Feb 2015 17:31:36 +0800 Message-ID: <1423560696-12304-5-git-send-email-josh.wu@atmel.com> References: <1423560696-12304-1-git-send-email-josh.wu@atmel.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: In-Reply-To: <1423560696-12304-1-git-send-email-josh.wu@atmel.com> Sender: linux-media-owner@vger.kernel.org To: Guennadi Liakhovetski , Laurent Pinchart , Linux Media Mailing List Cc: linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org, Josh Wu List-Id: devicetree@vger.kernel.org Add the document for ov2640 dt. Cc: devicetree@vger.kernel.org Signed-off-by: Josh Wu Acked-by: Laurent Pinchart Acked-by: Sylwester Nawrocki --- Changes in v5: None Changes in v4: - remove aggsigned-clocks as it's general. - refine the explation. Changes in v3: - fix incorrect description. - Add assigned-clocks & assigned-clock-rates. - resetb pin should be ACTIVE_LOW. Changes in v2: - change the compatible string to be consistent with verdor file. - change the clock and pins' name. - add missed pinctrl in example. .../devicetree/bindings/media/i2c/ov2640.txt | 46 ++++++++++++++++++++++ 1 file changed, 46 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..c429b5b --- /dev/null +++ b/Documentation/devicetree/bindings/media/i2c/ov2640.txt @@ -0,0 +1,46 @@ +* 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: should be "ovti,ov2640" +- clocks: reference to the xvclk input clock. +- clock-names: should be "xvclk". + +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>; + }; + }; + }; + }; -- 1.9.1