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# 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:
- Dongchun Zhu <dongchun.zhu@mediatek.com>
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:
$ref: /schemas/graph.yaml#/$defs/port-base
additionalProperties: false
properties:
endpoint:
$ref: /schemas/media/video-interfaces.yaml#
unevaluatedProperties: false
properties:
data-lanes:
description: |-
The driver only supports four-lane operation.
items:
- const: 1
- const: 2
- const: 3
- const: 4
link-frequencies:
description: Frequencies listed are driver, not h/w limitations.
maxItems: 2
items:
enum: [ 360000000, 180000000 ]
required:
- link-frequencies
required:
- compatible
- reg
- clocks
- clock-names
- clock-frequency
- dovdd-supply
- avdd-supply
- dvdd-supply
- reset-gpios
- port
additionalProperties: false
examples:
- |
#include <dt-bindings/gpio/gpio.h>
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";
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>;
data-lanes = <1 2 3 4>;
link-frequencies = /bits/ 64 <360000000>;
};
};
};
};
...
|
