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# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
$id: http://devicetree.org/schemas/display/brcm,bcm2835-hdmi.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Broadcom VC4 (VideoCore4) HDMI Controller
maintainers:
- Eric Anholt <eric@anholt.net>
properties:
compatible:
const: brcm,bcm2835-hdmi
reg:
items:
- description: HDMI register range
- description: HD register range
interrupts:
minItems: 2
clocks:
items:
- description: The pixel clock
- description: The HDMI state machine clock
clock-names:
items:
- const: pixel
- const: hdmi
ddc:
allOf:
- $ref: /schemas/types.yaml#/definitions/phandle
description: >
Phandle of the I2C controller used for DDC EDID probing
hpd-gpios:
description: >
The GPIO pin for the HDMI hotplug detect (if it doesn't appear
as an interrupt/status bit in the HDMI controller itself)
dmas:
maxItems: 1
description: >
Should contain one entry pointing to the DMA channel used to
transfer audio data.
dma-names:
const: audio-rx
required:
- compatible
- reg
- interrupts
- clocks
- ddc
additionalProperties: false
examples:
- |
#include <dt-bindings/clock/bcm2835.h>
#include <dt-bindings/gpio/gpio.h>
hdmi: hdmi@7e902000 {
compatible = "brcm,bcm2835-hdmi";
reg = <0x7e902000 0x600>,
<0x7e808000 0x100>;
interrupts = <2 8>, <2 9>;
ddc = <&i2c2>;
hpd-gpios = <&gpio 46 GPIO_ACTIVE_HIGH>;
clocks = <&clocks BCM2835_PLLH_PIX>,
<&clocks BCM2835_CLOCK_HSM>;
clock-names = "pixel", "hdmi";
};
...
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