Documentation / devicetree / bindings / display / fsl,lcdif.yaml


Based on kernel version 6.15. Page generated on 2025-05-29 09:08 EST.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/display/fsl,lcdif.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Freescale/NXP i.MX LCD Interface (LCDIF)

maintainers:
  - Marek Vasut <marex@denx.de>
  - Stefan Agner <stefan@agner.ch>

description: |
  (e)LCDIF display controller found in the Freescale/NXP i.MX SoCs.

properties:
  compatible:
    oneOf:
      - enum:
          - fsl,imx23-lcdif
          - fsl,imx28-lcdif
          - fsl,imx6sx-lcdif
          - fsl,imx8mp-lcdif
          - fsl,imx93-lcdif
      - items:
          - enum:
              - fsl,imx6sl-lcdif
              - fsl,imx6sll-lcdif
              - fsl,imx6ul-lcdif
              - fsl,imx7d-lcdif
              - fsl,imx8mm-lcdif
              - fsl,imx8mn-lcdif
              - fsl,imx8mq-lcdif
          - const: fsl,imx6sx-lcdif

  reg:
    maxItems: 1

  clocks:
    items:
      - description: Pixel clock
      - description: Bus clock
      - description: Display AXI clock
    minItems: 1

  clock-names:
    items:
      - const: pix
      - const: axi
      - const: disp_axi
    minItems: 1

  dmas:
    items:
      - description: DMA specifier for the RX DMA channel.

  dma-names:
    items:
      - const: rx

  interrupts:
    items:
      - description: LCDIF DMA interrupt
      - description: LCDIF Error interrupt
    minItems: 1

  power-domains:
    maxItems: 1

  port:
    $ref: /schemas/graph.yaml#/properties/port
    description: The LCDIF output port

required:
  - compatible
  - reg
  - clocks
  - interrupts
  - port

additionalProperties: false

allOf:
  - if:
      properties:
        compatible:
          contains:
            const: fsl,imx6sx-lcdif
    then:
      properties:
        clocks:
          minItems: 2
          maxItems: 3
        clock-names:
          minItems: 2
          maxItems: 3
      required:
        - clock-names
  - if:
      properties:
        compatible:
          contains:
            enum:
              - fsl,imx8mp-lcdif
              - fsl,imx93-lcdif
    then:
      properties:
        clocks:
          minItems: 3
          maxItems: 3
        clock-names:
          minItems: 3
          maxItems: 3
      required:
        - clock-names
  - if:
      not:
        properties:
          compatible:
            contains:
              enum:
                - fsl,imx6sx-lcdif
                - fsl,imx8mp-lcdif
                - fsl,imx93-lcdif
    then:
      properties:
        clocks:
          maxItems: 1
        clock-names:
          maxItems: 1
  - if:
      properties:
        compatible:
          const: fsl,imx6sx-lcdif
    then:
      required:
        - power-domains
  - if:
      properties:
        compatible:
          contains:
            enum:
              - fsl,imx6sl-lcdif
              - fsl,imx8mm-lcdif
              - fsl,imx8mn-lcdif
              - fsl,imx8mp-lcdif
              - fsl,imx93-lcdif
    then:
      required:
        - power-domains
  - if:
      properties:
        compatible:
          contains:
            enum:
              - fsl,imx23-lcdif
    then:
      properties:
        interrupts:
          minItems: 2
          maxItems: 2
    else:
      properties:
        interrupts:
          maxItems: 1

  - if:
      not:
        properties:
          compatible:
            contains:
              enum:
                - fsl,imx28-lcdif
    then:
      properties:
        dmas: false
        dma-names: false

examples:
  - |
    #include <dt-bindings/clock/imx6sx-clock.h>
    #include <dt-bindings/interrupt-controller/arm-gic.h>
 
    display-controller@2220000 {
        compatible = "fsl,imx6sx-lcdif";
        reg = <0x02220000 0x4000>;
        interrupts = <GIC_SPI 5 IRQ_TYPE_LEVEL_HIGH>;
        clocks = <&clks IMX6SX_CLK_LCDIF1_PIX>,
                 <&clks IMX6SX_CLK_LCDIF_APB>,
                 <&clks IMX6SX_CLK_DISPLAY_AXI>;
        clock-names = "pix", "axi", "disp_axi";
        power-domains = <&pd_disp>;
 
        port {
            endpoint {
                remote-endpoint = <&panel_in>;
            };
        };
    };

...