dts/bindings/display/sitronix,st7796s.yaml

# Copyright 2023 NXP
# SPDX-License-Identifier: Apache-2.0

description: ST7796S Display controller

compatible: "sitronix,st7796s"

include: [mipi-dbi-spi-device.yaml, display-controller.yaml]

properties:
  frmctl1:
    type: uint8-array
    default: [0xA0, 0x10]
    description: |
      Frame rate control (partial mode / full colors). The default value should
      result in a framerate of ~41 FPS.

  frmctl2:
    type: uint8-array
    default: [0x00, 0x10]
    description: |
      Frame rate control (idle mode / 8 colors). This property sets the
      division ratio for internal clocks in idle mode

  frmctl3:
    type: uint8-array
    default: [0x00, 0x10]
    description: |
      Frame rate control (partial mode / full colors). This property sets the
      division ratio for internal clocks in partial mode

  bpc:
    type: uint8-array
    default: [0x02, 0x02, 0x00, 0x04]
    description: |
      Blanking porch control. This sets the vertical and horizontal
      front/back porch values

  dfc:
    type: uint8-array
    default: [0x80, 0x02, 0x3B]
    description: |
      Display function control. Sets display graphical ram mode, as well as
      gate scan mode

  pwr1:
    type: uint8-array
    default: [0x80, 0x25]
    description: Power control parameter 1. Sets AVDDS, AVLCS, and VGHS

  pwr2:
    type: int
    default: 0x13
    description: Power control parameter 2. Sets VAP

  pwr3:
    type: int
    default: 0xA
    description: Power control parameter 3. Sets source and gamma current levels

  vcmpctl:
    type: int
    default: 0x1C
    description: |
      VCOM control setting. Value starts at 0.300V, and moves upwards in
      increments of 0.025V. Maximum of 1.875V

  doca:
    type: uint8-array
    default: [0x40, 0x8A, 0x00, 0x00, 0x25, 0x0A, 0x38, 0x33]
    description: |
      Display output control adjust. Sets display timing controls

  pgc:
    type: uint8-array
    required: true
    description: |
      Positive gamma control settings. No default is provided by controller,
      as this setting is panel specific.
  ngc:
    type: uint8-array
    required: true
    description: |
      Negative gamma control settings. No default is provided by controller,
      as this setting is panel specific.

  madctl:
    type: int
    default: 0x0
    description: |
       Memory data access control value. This controls the panel color format,
       as well as rotation settings.

  color-invert:
    type: boolean
    description: When present, inverts display colors

  invert-mode:
    type: string
    default: "1-dot"
    enum:
      - "column"
      - "1-dot"
      - "2-dot"
    description: |
      Display inversion control mode.