# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/display/imx/fsl,imx-lcdc.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Freescale i.MX LCD Controller, found on i.MX1, i.MX21, i.MX25 and i.MX27

maintainers:
  - Sascha Hauer <s.hauer@pengutronix.de>
  - Pengutronix Kernel Team <kernel@pengutronix.de>

properties:
  compatible:
    oneOf:
      - enum:
          - fsl,imx1-fb
          - fsl,imx21-fb
      - items:
          - enum:
              - fsl,imx25-fb
              - fsl,imx27-fb
          - const: fsl,imx21-fb
      - items:
          - const: fsl,imx25-lcdc
          - const: fsl,imx21-lcdc

  clocks:
    maxItems: 3

  clock-names:
    items:
      - const: ipg
      - const: ahb
      - const: per

  port:
    $ref: /schemas/graph.yaml#/properties/port

  display:
    $ref: /schemas/types.yaml#/definitions/phandle

  interrupts:
    maxItems: 1

  reg:
    maxItems: 1

  lcd-supply:
    description:
      Regulator for LCD supply voltage.

  fsl,dmacr:
    $ref: /schemas/types.yaml#/definitions/uint32
    description:
      Override value for DMA Control Register

  fsl,lpccr:
    $ref: /schemas/types.yaml#/definitions/uint32
    description:
      Contrast Control Register value.

  fsl,lscr1:
    $ref: /schemas/types.yaml#/definitions/uint32
    description:
      LCDC Sharp Configuration Register value.

allOf:
  - if:
      properties:
        compatible:
          contains:
            enum:
              - fsl,imx1-lcdc
              - fsl,imx21-lcdc
    then:
      properties:
        display: false
        fsl,dmacr: false
        fsl,lpccr: false
        fsl,lscr1: false

      required:
        - port

    else:
      properties:
        port: false

      required:
        - display

required:
  - compatible
  - clocks
  - clock-names
  - interrupts
  - reg

additionalProperties: false

examples:
  - |
    lcdc@53fbc000 {
        compatible = "fsl,imx25-lcdc", "fsl,imx21-lcdc";
        reg = <0x53fbc000 0x4000>;
        interrupts = <39>;
        clocks = <&clks 103>, <&clks 66>, <&clks 49>;
        clock-names = "ipg", "ahb", "per";
 
        port {
            parallel_out: endpoint {
              remote-endpoint = <&panel_in>;
            };
        };
    };
  - |
    imxfb: fb@10021000 {
        compatible = "fsl,imx21-fb";
        interrupts = <61>;
        reg = <0x10021000 0x1000>;
        display = <&display0>;
        clocks = <&clks 103>, <&clks 49>, <&clks 66>;
        clock-names = "ipg", "ahb", "per";
    };

    display0: display0 {
        model = "Primeview-PD050VL1";
        bits-per-pixel = <16>;
        fsl,pcr = <0xf0c88080>; /* non-standard but required */
 
        display-timings {
            native-mode = <&timing_disp0>;
            timing_disp0: timing0 {
                hactive = <640>;
                vactive = <480>;
                hback-porch = <112>;
                hfront-porch = <36>;
                hsync-len = <32>;
                vback-porch = <33>;
                vfront-porch = <33>;
                vsync-len = <2>;
                clock-frequency = <25000000>;
            };
        };
    };