From patchwork Wed Apr 8 11:08:14 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Robert Foss X-Patchwork-Id: 11479797 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 705AF14B4 for ; Wed, 8 Apr 2020 11:08:33 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 477C82076D for ; Wed, 8 Apr 2020 11:08:33 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="O2ny8JKG" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728327AbgDHLIa (ORCPT ); Wed, 8 Apr 2020 07:08:30 -0400 Received: from mail-wm1-f68.google.com ([209.85.128.68]:51700 "EHLO mail-wm1-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728207AbgDHLI2 (ORCPT ); Wed, 8 Apr 2020 07:08:28 -0400 Received: by mail-wm1-f68.google.com with SMTP id z7so4717718wmk.1 for ; Wed, 08 Apr 2020 04:08:25 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=EOnNa/TLh6h6HNgX41DYotN/L8BySvP3U4vrVfk7o6Y=; b=O2ny8JKGUSOuz/60vCEy24Z2F71bpl9WsZ1e1tuYDus2ZF4FzzrO3XhUleYtj7jH6l KaCI6/4ClgphAIuccqIzWvMi7JCridrNIfslRWmZYfceqr4F5fjdRmPLpsJzq7Jrar+b QY+9PTmBe0ZdlkzQhxwF3FAO51PbDJBEHM6DaytPjZHiP65zhc6QIKr5FhHVYTUp/2Gt uBcSpt9Ucz22AtBI+ajLPYxJc709g1VompPqnBKcIRo5MnaFk3tNOuq4MfPTfW7CHMT7 f8DFa5vpZkBHu4wJmlXw5x+fVhKcKvLUmWEQL3ii5529+kLh7RQaAfii7omMdLSDe3PE LEAw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=EOnNa/TLh6h6HNgX41DYotN/L8BySvP3U4vrVfk7o6Y=; b=BuUo34v98V9K1er49qj8hPr1LxX1e4+RjRrGdEJMaocFPw9DJCeOm6eAe7JsHTyWrK 1Xz5zXRa5fyDoZrWX9p6nkNtjfKmKBIOhLlc2vqyrdyYFNdrwvm+7nUQEX6L0YCmSAw/ QBem87U43rqGVKCEp4m8J521u7ke7JLK+wEFP0d3ZEqpOYaOq9KNO3cSpNFLSehUvZc3 Wu7Bnt9xHjsL39djMpI0AP4uJ/ELvqxs/LUvdeagA8NknCuwXqpIiDKpucpdlSqsrt2Z GtiNbtKu6WZUHFty5qMPnmQsBxEV5tcBAtufvNnwWf6Q9S1r2M9zwlExynkhERm3Cvm2 7Ebg== X-Gm-Message-State: AGi0Pua7vDmm9Id3Wop0onZ9m0CboEwzsM+JoIo3eincQw40bk3OIbQA Y192LpqKXaytOQKhHlwRvATUYw== X-Google-Smtp-Source: APiQypJ8psA8kj8RYG+w7ZqInsqVOLVF9bsnw1TmjHbXUxzjvKohVvAbjzHiJOBlAF+tzflddAC89A== X-Received: by 2002:a1c:e914:: with SMTP id q20mr4038768wmc.105.1586344104561; Wed, 08 Apr 2020 04:08:24 -0700 (PDT) Received: from localhost.localdomain ([37.120.50.78]) by smtp.gmail.com with ESMTPSA id i8sm37596253wrb.41.2020.04.08.04.08.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 08 Apr 2020 04:08:24 -0700 (PDT) From: Robert Foss To: Dongchun Zhu , Fabio Estevam , Andy Shevchenko , Sakari Ailus , Marco Felsch , Tomasz Figa , Maxime Ripard , linux-media@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: Robert Foss Subject: [PATCH v7 1/3] media: dt-bindings: ov8856: Document YAML bindings Date: Wed, 8 Apr 2020 13:08:14 +0200 Message-Id: <20200408110816.2712841-2-robert.foss@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200408110816.2712841-1-robert.foss@linaro.org> References: <20200408110816.2712841-1-robert.foss@linaro.org> MIME-Version: 1.0 Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org From: Dongchun Zhu This patch adds documentation of device tree in YAML schema for the OV8856 CMOS image sensor. Signed-off-by: Dongchun Zhu Signed-off-by: Robert Foss --- - Changes since v6: * Marco: remove qcom specifics from DT example - Changes since v5: * Add assigned-clocks and assigned-clock-rates * robher: dt-schema errors - Changes since v4: * Fabio: Change reset-gpio to GPIO_ACTIVE_LOW, explain in description * Add clock-lanes property to example * robher: Fix syntax error in devicetree example - Changes since v3: * robher: Fix syntax error * robher: Removed maxItems * Fixes yaml 'make dt-binding-check' errors - Changes since v2: Fixes comments from from Andy, Tomasz, Sakari, Rob. * Convert text documentation to YAML schema. - Changes since v1: Fixes comments from Sakari, Tomasz * Add clock-frequency and link-frequencies in DT .../devicetree/bindings/media/i2c/ov8856.yaml | 143 ++++++++++++++++++ MAINTAINERS | 1 + 2 files changed, 144 insertions(+) create mode 100644 Documentation/devicetree/bindings/media/i2c/ov8856.yaml diff --git a/Documentation/devicetree/bindings/media/i2c/ov8856.yaml b/Documentation/devicetree/bindings/media/i2c/ov8856.yaml new file mode 100644 index 000000000000..96bef5403d7e --- /dev/null +++ b/Documentation/devicetree/bindings/media/i2c/ov8856.yaml @@ -0,0 +1,143 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +# Copyright (c) 2019 MediaTek Inc. +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/media/i2c/ov8856.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Omnivision OV8856 CMOS Sensor Device Tree Bindings + +maintainers: + - Ben Kao + - Dongchun Zhu + +description: |- + The Omnivision OV8856 is a high performance, 1/4-inch, 8 megapixel, CMOS + image sensor that delivers 3264x2448 at 30fps. It provides full-frame, + sub-sampled, and windowed 10-bit MIPI images in various formats via the + Serial Camera Control Bus (SCCB) interface. This chip is programmable + through I2C and two-wire SCCB. The sensor output is available via CSI-2 + serial data output (up to 4-lane). + +properties: + compatible: + const: ovti,ov8856 + + reg: + maxItems: 1 + + clocks: + maxItems: 1 + + clock-names: + description: + Input clock for the sensor. + items: + - const: xvclk + + assigned-clocks: + description: + Input clock for the sensor. + + assigned-clock-rates: + description: + Frequency of the xvclk clock in Hertz. + + dovdd-supply: + description: + Definition of the regulator used as interface power supply. + + avdd-supply: + description: + Definition of the regulator used as analog power supply. + + dvdd-supply: + description: + Definition of the regulator used as digital power supply. + + reset-gpios: + description: + The phandle and specifier for the GPIO that controls sensor reset. + This corresponds to the hardware pin XSHUTDOWN which is physically + active low. + + port: + type: object + additionalProperties: false + description: + A node containing input and output port nodes with endpoint definitions + as documented in + Documentation/devicetree/bindings/media/video-interfaces.txt + + properties: + endpoint: + type: object + + properties: + clock-lanes: + maxItems: 1 + + data-lanes: + maxItems: 1 + + remote-endpoint: true + + required: + - clock-lanes + - data-lanes + - remote-endpoint + + required: + - endpoint + +required: + - compatible + - reg + - clocks + - clock-names + - assigned-clocks + - assigned-clock-rates + - dovdd-supply + - avdd-supply + - dvdd-supply + - reset-gpios + - port + +additionalProperties: false + +examples: + - | + #include + + i2c { + #address-cells = <1>; + #size-cells = <0>; + + ov8856: camera@10 { + compatible = "ovti,ov8856"; + reg = <0x10>; + + reset-gpios = <&pio 111 GPIO_ACTIVE_LOW>; + pinctrl-names = "default"; + pinctrl-0 = <&clk_24m_cam>; + + clocks = <&cam_osc>; + clock-names = "xvclk"; + assigned-clocks = <&cam_osc>; + assigned-clock-rates = <19200000>; + + avdd-supply = <&mt6358_vcama2_reg>; + dvdd-supply = <&mt6358_vcamd_reg>; + dovdd-supply = <&mt6358_vcamio_reg>; + + port { + wcam_out: endpoint { + remote-endpoint = <&mipi_in_wcam>; + clock-lanes = <0>; + data-lanes = <1 2 3 4>; + link-frequencies = /bits/ 64 <360000000 180000000>; + }; + }; + }; + }; +... \ No newline at end of file diff --git a/MAINTAINERS b/MAINTAINERS index 534a8dc4f84a..3f35c6e9700a 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -12465,6 +12465,7 @@ L: linux-media@vger.kernel.org T: git git://linuxtv.org/media_tree.git S: Maintained F: drivers/media/i2c/ov8856.c +F: Documentation/devicetree/bindings/media/i2c/ov8856.yaml OMNIVISION OV9650 SENSOR DRIVER M: Sakari Ailus