2023-08-30 17:31:07 +02:00
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# 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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2023-10-24 12:59:35 +02:00
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$id: http://devicetree.org/schemas/media/i2c/chrontel,ch7322.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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2023-08-30 17:31:07 +02:00
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title: Chrontel HDMI-CEC Controller
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maintainers:
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- Jeff Chase <jnchase@google.com>
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description:
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The Chrontel CH7322 is a discrete HDMI-CEC controller. It is
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programmable through I2C and drives a single CEC line.
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allOf:
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- $ref: /schemas/media/cec/cec-common.yaml#
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properties:
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compatible:
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const: chrontel,ch7322
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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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interrupts:
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maxItems: 1
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reset-gpios:
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description:
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Reference to the GPIO connected to the RESET pin, if any. This
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pin is active-low.
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maxItems: 1
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standby-gpios:
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description:
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Reference to the GPIO connected to the OE pin, if any. When low
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the device will respond to power status requests with "standby"
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if in auto mode.
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maxItems: 1
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required:
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- compatible
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- reg
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- interrupts
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unevaluatedProperties: false
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examples:
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- |
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#include <dt-bindings/gpio/gpio.h>
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#include <dt-bindings/interrupt-controller/irq.h>
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i2c {
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#address-cells = <1>;
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#size-cells = <0>;
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cec@75 {
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compatible = "chrontel,ch7322";
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reg = <0x75>;
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interrupts = <47 IRQ_TYPE_EDGE_RISING>;
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standby-gpios = <&gpio 16 GPIO_ACTIVE_LOW>;
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reset-gpios = <&gpio 15 GPIO_ACTIVE_LOW>;
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hdmi-phandle = <&hdmi>;
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};
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};
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