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Tue, 31 Mar 2020 06:33:56 -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 Subject: [PATCH v6 1/3] media: dt-bindings: ov8856: Document YAML bindings Date: Tue, 31 Mar 2020 15:33:44 +0200 Message-Id: <20200331133346.372517-2-robert.foss@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200331133346.372517-1-robert.foss@linaro.org> References: <20200331133346.372517-1-robert.foss@linaro.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200331_090550_472750_1EE181FC X-CRM114-Status: GOOD ( 14.84 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Robert Foss Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.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 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 | 150 ++++++++++++++++++ MAINTAINERS | 1 + 2 files changed, 151 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..beeddfbb8709 --- /dev/null +++ b/Documentation/devicetree/bindings/media/i2c/ov8856.yaml @@ -0,0 +1,150 @@ +# 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. + + 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 + - clock-frequency + - assigned-clocks + - assigned-clock-rates + - dovdd-supply + - avdd-supply + - dvdd-supply + - reset-gpios + - port + +additionalProperties: false + +examples: + - | + #include + #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 = <&clock_camcc CAM_CC_MCLK0_CLK>; + clock-names = "xvclk"; + clock-frequency = <19200000>; + assigned-clocks = <&clock_camcc CAM_CC_MCLK0_CLK>; + 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 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 -- 2.25.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel