dts/bindings/display/nxp,imx-elcdif.yaml

# Copyright (c) 2022, NXP
# SPDX-License-Identifier: Apache-2.0

description: NXP i.MX eLCDIF (Enhanced LCD Interface) controller

compatible: "nxp,imx-elcdif"

include: [display-controller.yaml, pinctrl-device.yaml]

properties:
    reg:
      required: true

    interrupts:
      required: true

    hsync:
      type: int
      required: true
      description: HSYNC pulse width in display clock cycles

    hfp:
      type: int
      required: true
      description: Horizontal front porch in display clock cycles

    hbp:
      type: int
      required: true
      description: Horizontal back porch in display clock cycles

    vsync:
      type: int
      required: true
      description: VSYNC pulse width in display clock cycles

    vfp:
      type: int
      required: true
      description: Vertical front porch in display clock cycles

    vbp:
      type: int
      required: true
      description: Vertical back porch in display clock cycles

    polarity:
      type: int
      required: true
      enum:
        - 0
        - 1
        - 2
        - 3
        - 4
        - 5
        - 6
        - 7
        - 8
        - 9
        - 10
        - 11
        - 12
        - 13
        - 14
        - 15
      description:
        OR'ed value of elcdif_polarity_flags, used to control the signal polarity.
        0000 VSYNC active low, HSYNC active low, Drive data on falling edge, Data enable active low.
        0001 VSYNC active low, HSYNC active low, Drive data on falling edge, Data enable active high.
        0010 VSYNC active low, HSYNC active low, Drive data on rising edge, Data enable active low.
        0011 VSYNC active low, HSYNC active low, Drive data on rising edge, Data enable active high.
        0100 VSYNC active low, HSYNC active high, Drive data on falling edge, Data enable active low.
        0101 VSYNC active low, HSYNC active high, Drive data on falling edge, Data enable active high.
        0110 VSYNC active low, HSYNC active high, Drive data on rising edge, Data enable active low.
        0111 VSYNC active low, HSYNC active high, Drive data on rising edge, Data enable active high.
        1000 VSYNC active high, HSYNC active low, Drive data on falling edge, Data enable active low.
        1001 VSYNC active high, HSYNC active low, Drive data on falling edge, Data enable active high.
        1010 VSYNC active high, HSYNC active low, Drive data on rising edge, Data enable active low.
        1011 VSYNC active high, HSYNC active low, Drive data on rising edge, Data enable active high.
        1100 VSYNC active high, HSYNC active high, Drive data on falling edge, Data enable active low.
        1101 VSYNC active high, HSYNC active high, Drive data on falling edge, Data enable active high.
        1110 VSYNC active high, HSYNC active high, Drive data on rising edge, Data enable active low.
        1111 VSYNC active high, HSYNC active high, Drive data on rising edge, Data enable active high.

    pixel-format:
      type: string
      required: true
      enum:
        - "rgb-888"
        - "bgr-565"
      description:
        Display pixel format.

    data-buswidth:
      type: string
      default: "16-bit"
      enum:
        - "16-bit"
        - "8-bit"
        - "18-bit"
        - "24-bit"
      description:
        LCD data bus width. The default is set to the reset value of 16-bit

    backlight-gpios:
      type: phandle-array
      required: true
      description:
        LCB backlight control gpio. Driver will initialize this GPIO to active high