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