Unverified Commit 2e3725b0 authored by Maxime Ripard's avatar Maxime Ripard
Browse files

dt-bindings: display: vc4: hdmi: Add BCM2711 HDMI controllers bindings 



The HDMI controllers found in the BCM2711 SoC need some adjustments to the
bindings, especially since the registers have been shuffled around in more
register ranges.

Signed-off-by: default avatarMaxime Ripard <maxime@cerno.tech>
Tested-by: default avatarChanwoo Choi <cw00.choi@samsung.com>
Tested-by: default avatarHoegeun Kwon <hoegeun.kwon@samsung.com>
Tested-by: default avatarStefan Wahren <stefan.wahren@i2se.com>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Reviewed-by: default avatarHoegeun Kwon <hoegeun.kwon@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/ecd686e9b2335275bfb1ccfe1878305367b34bf3.1599120059.git-series.maxime@cerno.tech
parent 83239891

Documentation/devicetree/bindings/display/brcm,bcm2711-hdmi.yaml

0 → 100644
+117 −0
Original line number Diff line number Diff line 
# SPDX-License-Identifier: GPL-2.0

%YAML 1.2

---

$id: http://devicetree.org/schemas/display/brcm,bcm2711-hdmi.yaml#

$schema: http://devicetree.org/meta-schemas/core.yaml#



title: Broadcom BCM2711 HDMI Controller Device Tree Bindings



maintainers:

  - Eric Anholt <eric@anholt.net>



properties:

  compatible:

    enum:

      - brcm,bcm2711-hdmi0

      - brcm,bcm2711-hdmi1



  reg:

    items:

      - description: HDMI controller register range

      - description: DVP register range

      - description: HDMI PHY register range

      - description: Rate Manager register range

      - description: Packet RAM register range

      - description: Metadata RAM register range

      - description: CSC register range

      - description: CEC register range

      - description: HD register range



  reg-names:

    items:

      - const: hdmi

      - const: dvp

      - const: phy

      - const: rm

      - const: packet

      - const: metadata

      - const: csc

      - const: cec

      - const: hd



  clocks:

    items:

      - description: The HDMI state machine clock

      - description: The Pixel BVB clock

      - description: The HDMI Audio parent clock

      - description: The HDMI CEC parent clock



  clock-names:

    items:

      - const: hdmi

      - const: bvb

      - const: audio

      - const: cec



  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



  resets:

    maxItems: 1



required:

  - compatible

  - reg

  - reg-names

  - clocks

  - resets

  - ddc



additionalProperties: false



examples:

  - |

    hdmi0: hdmi@7ef00700 {

        compatible = "brcm,bcm2711-hdmi0";

        reg = <0x7ef00700 0x300>,

              <0x7ef00300 0x200>,

              <0x7ef00f00 0x80>,

              <0x7ef00f80 0x80>,

              <0x7ef01b00 0x200>,

              <0x7ef01f00 0x400>,

              <0x7ef00200 0x80>,

              <0x7ef04300 0x100>,

              <0x7ef20000 0x100>;

        reg-names = "hdmi",

                    "dvp",

                    "phy",

                    "rm",

                    "packet",

                    "metadata",

                    "csc",

                    "cec",

                    "hd";

        clocks = <&firmware_clocks 13>, <&firmware_clocks 14>, <&dvp 1>, <&clk_27MHz>;

        clock-names = "hdmi", "bvb", "audio", "cec";

        resets = <&dvp 0>;

        ddc = <&ddc0>;

    };



...