dts/bindings/display/st,stm32-ltdc.yaml

# Copyright (c) 2022, Byte-Lab d.o.o. <dev@byte-lab.com>
# Copyright (c) 2024 STMicroelectronics
# SPDX-License-Identifier: Apache-2.0

description: STM32 LCD-TFT display controller

compatible: "st,stm32-ltdc"

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

properties:
  disp-on-gpios:
    type: phandle-array
    description: |
      Display on/off GPIO pin.
      Configure the GPIO polarity (active high/active low) according to LCD datasheet.

  bl-ctrl-gpios:
    type: phandle-array
    description: |
      Backlight on/off GPIO pin.
      Configure the GPIO polarity (active high/active low) according to LCD datasheet.

  ext-sdram:
    type: phandle
    description: |
      External SDRAM in which frame buffer will be stored.
      If not defined, internal RAM will be used.

  clocks:
    required: true

  interrupts:
    required: true

  pinctrl-0:
    description: |
      Provide a pin configuration for using parallel pixel output. In combination with DSI HOST
      the pin configuration is not necessary due to dedicated (MIPI D-PHY) pins.

  def-back-color-red:
    type: int
    description: Default display background color - red

  def-back-color-green:
    type: int
    description: Default display background color - green

  def-back-color-blue:
    type: int
    description: Default display background color - blue

  window0-x0:
    type: int
    description: First pixel in x direction on layer 0. Defaults to 0.

  window0-x1:
    type: int
    description: Last pixel in x direction on layer 0. Defaults to width.

  window0-y0:
    type: int
    description: First pixel in y direction on layer 0. Defaults to 0.

  window0-y1:
    type: int
    description: Last pixel in y direction on layer 0. Defaults to height.

  display-controller:
    type: phandle
    description: |
      Phandle of the display's controller. When provided, it's used to forward some of the
      configuration calls (e.g. blanking on/off) sent to LTDC device.