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78c68bb27d
Add YAML device tree binding for the Sony IMX500 CMOS image sensor / CNN inference engine. Also, add a MAINTAINERS entry. Signed-off-by: Richard Oliver <richard.oliver@raspberrypi.com>
133 lines
3.2 KiB
YAML
133 lines
3.2 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/media/i2c/sony,imx500.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Sony CMOS Digital Image Sensor and CNN
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maintainers:
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- Raspberry Pi <kernel-list@raspberrypi.com>
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description: |-
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The Sony IMX500 is a stacked 1/2.3-inch CMOS digital image sensor and inbuilt
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AI processor with an active array CNN (Convolutional Neural Network) inference
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engine. The native sensor size is 4056H x 3040V, and the module also contains
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an in-built ISP for the CNN. The module is programmable through an I2C
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interface with firmware and neural network uploads being made over SPI. The
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default I2C address is 0x1A, with an address of 0x10 being selectable via
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SLASEL. The module also has a second I2C interface available with a fixed
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address of 0x36. Image data is sent through MIPI CSI-2, which is configured
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as either 2 or 4 data lanes.
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properties:
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compatible:
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const: sony,imx500
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reg:
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description: I2C device address
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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 (12 to 27 MHz)
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items:
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- const: inck
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interrupts:
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maxItems: 1
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vana-supply:
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description: Supply voltage (analog) - 2.7 V
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vdig-supply:
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description: Supply voltage (digital) - 0.84 V
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vif-supply:
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description: Supply voltage (interface) - 1.8 V
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reset-gpios:
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description: |-
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Sensor reset (XCLR) GPIO
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Chip clear in lieu of built-in power on reset. To be set 'High' after
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power supplies are brought up and INCK supplied.
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port:
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$ref: /schemas/graph.yaml#/$defs/port-base
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additionalProperties: false
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description: |
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Video output port
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properties:
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endpoint:
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$ref: /schemas/media/video-interfaces.yaml#
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type: object
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unevaluatedProperties: false
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properties:
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data-lanes:
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items:
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- const: 2
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- const: 4
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clock-noncontinuous: true
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link-frequencies: true
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required:
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- link-frequencies
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- data-lanes
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spi:
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$ref: /schemas/types.yaml#/definitions/phandle
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description: |-
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SPI peripheral
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Optional SPI peripheral for uploading firmware and network weights to AI
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processor.
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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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- vana-supply
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- vdig-supply
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- vif-supply
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- port
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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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imx500: sensor@1a {
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compatible = "sony,imx500";
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reg = <0x1a>;
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clocks = <&imx500_clk>;
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clock-names = "inck";
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vana-supply = <&imx500_vana>; /* 2.7 +/- 0.1 V */
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vdig-supply = <&imx500_vdig>; /* 0.84 +/- 0.04 V */
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vif-supply = <&imx500_vif>; /* 1.8 +/- 0.1 V */
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reset-gpios = <&gpio_sensor 0 GPIO_ACTIVE_LOW>;
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port {
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imx500_0: endpoint {
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remote-endpoint = <&csi1_ep>;
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data-lanes = <1 2>;
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clock-noncontinuous;
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link-frequencies = /bits/ 64 <499500000>;
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};
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};
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};
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};
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...
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