From patchwork Fri Mar 13 11:03:48 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Robert Foss X-Patchwork-Id: 11436695 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 B77B16CA for ; Fri, 13 Mar 2020 11:04:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8B96F20724 for ; Fri, 13 Mar 2020 11:04:24 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="o7+OtpJ4" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726709AbgCMLEX (ORCPT ); Fri, 13 Mar 2020 07:04:23 -0400 Received: from mail-wr1-f68.google.com ([209.85.221.68]:33371 "EHLO mail-wr1-f68.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726636AbgCMLEM (ORCPT ); Fri, 13 Mar 2020 07:04:12 -0400 Received: by mail-wr1-f68.google.com with SMTP id a25so11552931wrd.0 for ; Fri, 13 Mar 2020 04:04:10 -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=ncw+eyWjRsQTeyJkRY9efqnjsTYXp1B+wwJAeTaYAUY=; b=o7+OtpJ4HguHvdXj6h/irlmhIyldJOZUxqelnNp1uJAiYtI0Ye/qKEhlAJSp5BT1/B g43HgPrOPFnot+78wWNNYRZEc0EuOxsOqVIXa7h4HRTSWvKcE8R7eBsdsW4+CPHqozSn hgfOpvGOZfScg4cuaOcJ04DB9E/PQX31nOumHbEprYeJp4rVEpOfrzhINOrQtuMzKC7h b/NozewPPpE2p2O43oW055R2XztYhoXJU0QhOilo5YppbcU4o/9brcU91NJlqzUaf/Ew XJ5D82lDLYQXm+TFlAYunv2VJwInnlKQTWhNYxINQZ0MgowfBPfTQsO/1ITq/cRmng1X JI+Q== 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=ncw+eyWjRsQTeyJkRY9efqnjsTYXp1B+wwJAeTaYAUY=; b=OExvEp2lpvhd501VU5SrlAVywoJ34mTtGCqzMQqklSDot5+YMqSBRO55vJbXh+7jRA g34/3ULYeS7xW0PdecLq1nYr5QfBsFCprw/qqvByJrPlZAJk9SBRGWUobp2ZmejIzwzs DqD+9c1BXNTu36IGU/hdATJZTLaynwKqQ4chhYnH6dUfwcxdTva7QyCdnOWBYlZeqFs4 3x/6CQoLWnlHIFmoDXaZhjZGmW9tR8eAqy24DxnmMvw7HnYGhjk9KoPEO8fstljJLm2+ XgwNEwLGYSbMVblCVwjwEB/JAKXBtC72RBV9ptOPQVPDxpB6q0SRZYR9AKZ718u6MU9d vRng== X-Gm-Message-State: ANhLgQ0HAmpkz2ggkmxcXL6rBkRqfDKRDqw7lsJHCK0zZX8lisHDqvc2 IoMGo+48wM8bWvdHEXZ1lSpRmA== X-Google-Smtp-Source: ADFU+vv07bRZwHFbQJV+QSjjmMIWLyvDlox4QCBogfbwZ9y18BLQBMA3c1lpCF+57gtUxJY4G2IWVQ== X-Received: by 2002:adf:9d8d:: with SMTP id p13mr12131719wre.360.1584097449459; Fri, 13 Mar 2020 04:04:09 -0700 (PDT) Received: from xps7590.local ([2a02:2450:102f:13b8:c814:5be4:577e:3bd5]) by smtp.gmail.com with ESMTPSA id r23sm23578052wrr.93.2020.03.13.04.04.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 13 Mar 2020 04:04:08 -0700 (PDT) From: Robert Foss To: Dongchun Zhu , Fabio Estevam , Andy Shevchenko , Sakari Ailus , Tomasz Figa , linux-media@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: Robert Foss Subject: [v2 1/3] media: dt-bindings: ov8856: Document YAML bindings Date: Fri, 13 Mar 2020 12:03:48 +0100 Message-Id: <20200313110350.10864-2-robert.foss@linaro.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200313110350.10864-1-robert.foss@linaro.org> References: <20200313110350.10864-1-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 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 | 133 ++++++++++++++++++ MAINTAINERS | 1 + 2 files changed, 134 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..f5cb9add9277 --- /dev/null +++ b/Documentation/devicetree/bindings/media/i2c/ov8856.yaml @@ -0,0 +1,133 @@ +# 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 + + clock-frequency: + 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 + - clock-frequency + - dovdd-supply + - avdd-supply + - dvdd-supply + - reset-gpios + - port + +additionalProperties: false + +examples: + - | + #include + #include + + ov8856: camera-sensor@10 { + compatible = "ovti,ov8856"; + reg = <0x10>; + reset-gpios = <&pio 111 GPIO_ACTIVE_LOW>; + pinctrl-names = "default"; + pinctrl-0 = <&clk_24m_cam>; + + clocks = <&clock_camcc CAM_CC_MCLK0_CLK>; + clock-names = "xvclk"; + clock-frequency = <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 a6fbdf354d34..0f99e863978a 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -12355,6 +12355,7 @@ 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