linux-loongson/Documentation/devicetree/bindings/media/i2c/ovti,ov7251.yaml
Rob Herring 274e480982 media: dt-bindings: Convert Omnivision OV7251 to DT schema
Convert the OmniVision OV7251 Image Sensor binding to DT schema format.

vddd-supply was listed as required, but the example and actual user
don't have it. Also, the data brief says it has an internal regulator,
so perhaps it is truly optional.

Add missing common "link-frequencies" which is used and required by the
Linux driver.

Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Acked-by: Wolfram Sang <wsa@kernel.org> # for I2C
Link: https://lore.kernel.org/r/20230817202713.2180195-1-robh@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
2023-09-05 15:54:28 -05:00

110 lines
2.4 KiB
YAML

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/media/i2c/ovti,ov7251.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: OmniVision OV7251 Image Sensor
description:
The Omnivision OV7251 is a 1/7.5-Inch CMOS active pixel digital image sensor
with an active array size of 640H x 480V. It is programmable through a serial
I2C interface.
maintainers:
- Todor Tomov <todor.too@gmail.com>
properties:
compatible:
const: ovti,ov7251
reg:
maxItems: 1
clocks:
description: XCLK Input Clock
clock-names:
const: xclk
clock-frequency:
description: Frequency of the xclk clock in Hz.
vdda-supply:
description: Analog voltage supply, 2.8 volts
vddd-supply:
description: Digital core voltage supply, 1.2 volts
vdddo-supply:
description: Digital I/O voltage supply, 1.8 volts
enable-gpios:
maxItems: 1
description:
Reference to the GPIO connected to the XSHUTDOWN pin, if any. Polarity
is GPIO_ACTIVE_HIGH.
port:
description: Digital Output Port
$ref: /schemas/graph.yaml#/$defs/port-base
additionalProperties: false
properties:
endpoint:
$ref: /schemas/media/video-interfaces.yaml#
unevaluatedProperties: false
properties:
clock-lanes:
maximum: 1
data-lanes:
maxItems: 1
link-frequencies: true
required:
- data-lanes
- link-frequencies
required:
- compatible
- reg
- clocks
- vdddo-supply
- vdda-supply
- port
additionalProperties: false
examples:
- |
#include <dt-bindings/gpio/gpio.h>
i2c {
#address-cells = <1>;
#size-cells = <0>;
camera@3c {
compatible = "ovti,ov7251";
reg = <0x3c>;
clocks = <&clks 1>;
clock-frequency = <24000000>;
vdddo-supply = <&ov7251_vdddo_1v8>;
vdda-supply = <&ov7251_vdda_2v8>;
vddd-supply = <&ov7251_vddd_1v5>;
enable-gpios = <&gpio1 19 GPIO_ACTIVE_HIGH>;
port {
ov7251_ep: endpoint {
remote-endpoint = <&csi0_ep>;
clock-lanes = <1>;
data-lanes = <0>;
link-frequencies = /bits/ 64 <240000000 319200000>;
};
};
};
};
...