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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/Documentation/devicetree/bindings/display/brcm,bcm2835-hdmi.yaml
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# 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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