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

   1 # SPDX-License-Identifier: GPL-2.0
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/display/brcm,bcm2711-hdmi.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Broadcom BCM2711 HDMI Controller Device Tree Bindings
   8
   9 maintainers:
  10   - Eric Anholt <eric@anholt.net>
  11
  12 properties:
  13   compatible:
  14     enum:
  15       - brcm,bcm2711-hdmi0
  16       - brcm,bcm2711-hdmi1
  17
  18   reg:
  19     items:
  20       - description: HDMI controller register range
  21       - description: DVP register range
  22       - description: HDMI PHY register range
  23       - description: Rate Manager register range
  24       - description: Packet RAM register range
  25       - description: Metadata RAM register range
  26       - description: CSC register range
  27       - description: CEC register range
  28       - description: HD register range
  29
  30   reg-names:
  31     items:
  32       - const: hdmi
  33       - const: dvp
  34       - const: phy
  35       - const: rm
  36       - const: packet
  37       - const: metadata
  38       - const: csc
  39       - const: cec
  40       - const: hd
  41
  42   clocks:
  43     items:
  44       - description: The HDMI state machine clock
  45       - description: The Pixel BVB clock
  46       - description: The HDMI Audio parent clock
  47       - description: The HDMI CEC parent clock
  48
  49   clock-names:
  50     items:
  51       - const: hdmi
  52       - const: bvb
  53       - const: audio
  54       - const: cec
  55
  56   ddc:
  57     allOf:
  58       - $ref: /schemas/types.yaml#/definitions/phandle
  59     description: >
  60       Phandle of the I2C controller used for DDC EDID probing
  61
  62   hpd-gpios:
  63     description: >
  64       The GPIO pin for the HDMI hotplug detect (if it doesn't appear
  65       as an interrupt/status bit in the HDMI controller itself)
  66
  67   dmas:
  68     maxItems: 1
  69     description: >
  70       Should contain one entry pointing to the DMA channel used to
  71       transfer audio data.
  72
  73   dma-names:
  74     const: audio-rx
  75
  76   resets:
  77     maxItems: 1
  78
  79   wifi-2.4ghz-coexistence:
  80     type: boolean
  81     description: >
  82       Should the pixel frequencies in the WiFi frequencies range be
  83       avoided?
  84
  85 required:
  86   - compatible
  87   - reg
  88   - reg-names
  89   - clocks
  90   - resets
  91   - ddc
  92
  93 additionalProperties: false
  94
  95 examples:
  96   - |
  97     hdmi0: hdmi@7ef00700 {
  98         compatible = "brcm,bcm2711-hdmi0";
  99         reg = <0x7ef00700 0x300>,
 100               <0x7ef00300 0x200>,
 101               <0x7ef00f00 0x80>,
 102               <0x7ef00f80 0x80>,
 103               <0x7ef01b00 0x200>,
 104               <0x7ef01f00 0x400>,
 105               <0x7ef00200 0x80>,
 106               <0x7ef04300 0x100>,
 107               <0x7ef20000 0x100>;
 108         reg-names = "hdmi",
 109                     "dvp",
 110                     "phy",
 111                     "rm",
 112                     "packet",
 113                     "metadata",
 114                     "csc",
 115                     "cec",
 116                     "hd";
 117         clocks = <&firmware_clocks 13>, <&firmware_clocks 14>, <&dvp 1>, <&clk_27MHz>;
 118         clock-names = "hdmi", "bvb", "audio", "cec";
 119         resets = <&dvp 0>;
 120         ddc = <&ddc0>;
 121     };
 122
 123 ...