blob: 43ee5f2defebe56107fe49810f1ab771abec7336 [file] [log] [blame]
# Copyright (c) 2022, Byte-Lab d.o.o. <dev@byte-lab.com>
# SPDX-License-Identifier: Apache-2.0
description: STM32 LCD-TFT display controller
compatible: "st,stm32-ltdc"
include: [display-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:
required: true
hsync-pol:
type: int
required: true
description: |
Horizontal synchronization pulse polarity.
If HSYNC is active low, use STM32_LTDC_HSPOL_ACTIVE_LOW,
otherwise use STM32_LTDC_HSPOL_ACTIVE_HIGH.
vsync-pol:
type: int
required: true
description: |
Vertical synchronization pulse polarity.
If VSYNC is active low, use STM32_LTDC_VSPOL_ACTIVE_LOW,
otherwise use STM32_LTDC_VSPOL_ACTIVE_HIGH.
de-pol:
type: int
required: true
description: |
Data enable pulse polarity.
If DE is active low, use STM32_LTDC_DEPOL_ACTIVE_LOW,
otherwise use STM32_LTDC_DEPOL_ACTIVE_HIGH.
pclk-pol:
type: int
required: true
description: |
Pixel clock polarity.
If RGB data is sampled on falling edge of PCLK, use STM32_LTDC_PCPOL_ACTIVE_LOW,
otherwise use STM32_LTDC_PCPOL_ACTIVE_HIGH.
hsync-duration:
type: int
required: true
description: Horizontal synchronization pulse duration, in pixels
vsync-duration:
type: int
required: true
description: Vertical synchronization pulse duration, in lines
hbp-duration:
type: int
required: true
description: Horizontal back-porch duration, in pixels
vbp-duration:
type: int
required: true
description: Vertical back-porch duration, in lines
hfp-duration:
type: int
required: true
description: Horizontal front porch duration, in pixels
vfp-duration:
type: int
required: true
description: Vertical front porch duration, in lines
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