mirror of https://gitee.com/openkylin/linux.git
media: dt-bindings: ov8856: Document YAML bindings
This patch adds documentation of device tree in YAML schema for the OV8856 CMOS image sensor. Signed-off-by: Dongchun Zhu <dongchun.zhu@mediatek.com> Signed-off-by: Robert Foss <robert.foss@linaro.org> Reviewed-by: Maxime Ripard <mripard@kernel.org> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This commit is contained in:
Dongchun Zhu
Mauro Carvalho Chehab
parent
528b1a1ab2
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# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
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# Copyright (c) 2019 MediaTek Inc.
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/media/i2c/ov8856.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Omnivision OV8856 CMOS Sensor Device Tree Bindings
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maintainers:
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- Dongchun Zhu <dongchun.zhu@mediatek.com>
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description: |-
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The Omnivision OV8856 is a high performance, 1/4-inch, 8 megapixel, CMOS
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image sensor that delivers 3264x2448 at 30fps. It provides full-frame,
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sub-sampled, and windowed 10-bit MIPI images in various formats via the
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Serial Camera Control Bus (SCCB) interface. This chip is programmable
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through I2C and two-wire SCCB. The sensor output is available via CSI-2
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serial data output (up to 4-lane).
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properties:
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compatible:
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const: ovti,ov8856
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reg:
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maxItems: 1
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clocks:
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maxItems: 1
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clock-names:
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description:
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Input clock for the sensor.
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items:
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- const: xvclk
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clock-frequency:
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description:
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Frequency of the xvclk clock in Hertz.
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dovdd-supply:
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description:
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Definition of the regulator used as interface power supply.
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avdd-supply:
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description:
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Definition of the regulator used as analog power supply.
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dvdd-supply:
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description:
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Definition of the regulator used as digital power supply.
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reset-gpios:
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description:
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The phandle and specifier for the GPIO that controls sensor reset.
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This corresponds to the hardware pin XSHUTDOWN which is physically
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active low.
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port:
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type: object
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additionalProperties: false
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description:
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A node containing an output port node with an endpoint definition
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as documented in
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Documentation/devicetree/bindings/media/video-interfaces.txt
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properties:
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endpoint:
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type: object
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properties:
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data-lanes:
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description: |-
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The driver only supports four-lane operation.
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items:
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- const: 1
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- const: 2
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- const: 3
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- const: 4
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link-frequencies:
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allOf:
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- $ref: /schemas/types.yaml#/definitions/uint64-array
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description:
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Allowed data bus frequencies. 360000000, 180000000 Hz or both
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are supported by the driver.
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required:
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- link-frequencies
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required:
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- endpoint
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required:
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- compatible
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- reg
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- clocks
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- clock-names
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- clock-frequency
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- dovdd-supply
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- avdd-supply
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- dvdd-supply
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- reset-gpios
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- port
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additionalProperties: false
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examples:
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- |
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#include <dt-bindings/gpio/gpio.h>
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i2c {
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#address-cells = <1>;
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#size-cells = <0>;
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ov8856: camera@10 {
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compatible = "ovti,ov8856";
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reg = <0x10>;
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reset-gpios = <&pio 111 GPIO_ACTIVE_LOW>;
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pinctrl-names = "default";
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pinctrl-0 = <&clk_24m_cam>;
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clocks = <&cam_osc>;
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clock-names = "xvclk";
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clock-frequency = <19200000>;
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avdd-supply = <&mt6358_vcama2_reg>;
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dvdd-supply = <&mt6358_vcamd_reg>;
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dovdd-supply = <&mt6358_vcamio_reg>;
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port {
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wcam_out: endpoint {
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remote-endpoint = <&mipi_in_wcam>;
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data-lanes = <1 2 3 4>;
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link-frequencies = /bits/ 64 <360000000>;
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};
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};
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};
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};
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...
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@ -12485,10 +12485,11 @@ F: Documentation/devicetree/bindings/media/i2c/ov7740.txt
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F: drivers/media/i2c/ov7740.c
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OMNIVISION OV8856 SENSOR DRIVER
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M: Ben Kao <ben.kao@intel.com>
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M: Dongchun Zhu <dongchun.zhu@mediatek.com>
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L: linux-media@vger.kernel.org
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S: Maintained
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T: git git://linuxtv.org/media_tree.git
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F: Documentation/devicetree/bindings/media/i2c/ov8856.yaml
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F: drivers/media/i2c/ov8856.c
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OMNIVISION OV9640 SENSOR DRIVER
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