st,stm32-ltdc

Vendor: STMicroelectronics N.V.

Note

An implementation of a driver matching this compatible is available in drivers/display/display_stm32_ltdc.c.

Description

STM32 LCD-TFT display controller

Properties

Node specific properties

Properties not inherited from the base binding file.

Name

Type

Details

disp-on-gpios

phandle-array

 
Display on/off GPIO pin.
Configure the GPIO polarity (active high/active low) according to LCD datasheet.

bl-ctrl-gpios

phandle-array

 
Backlight on/off GPIO pin.
Configure the GPIO polarity (active high/active low) according to LCD datasheet.

ext-sdram

phandle

 
External SDRAM in which frame buffer will be stored.
If not defined, internal RAM will be used.

resets

phandle-array

 
Reset information

This property is required.

pinctrl-0

phandles

 
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

int

 
Default display background color - red

def-back-color-green

int

 
Default display background color - green

def-back-color-blue

int

 
Default display background color - blue

window0-x0

int

 
First pixel in x direction on layer 0. Defaults to 0.

window0-x1

int

 
Last pixel in x direction on layer 0. Defaults to width.

window0-y0

int

 
First pixel in y direction on layer 0. Defaults to 0.

window0-y1

int

 
Last pixel in y direction on layer 0. Defaults to height.

display-controller

phandle

 
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.

pixel-format

int

 
Initial Pixel format for panel attached to this controller.
See dt-bindings/display/panel.h for a list

This property is required.

height

int

 
Height of the panel driven by the controller, with the units in pixels.

This property is required.

width

int

 
Width of the panel driven by the controller, with the units in pixels.

This property is required.

pinctrl-1

phandles

 
Pin configuration/s for the second state. See pinctrl-0.

pinctrl-2

phandles

 
Pin configuration/s for the third state. See pinctrl-0.

pinctrl-3

phandles

 
Pin configuration/s for the fourth state. See pinctrl-0.

pinctrl-4

phandles

 
Pin configuration/s for the fifth state. See pinctrl-0.

pinctrl-names

string-array

 
Names for the provided states. The number of names needs to match the
number of states.

reset-names

string-array

 
Name of each reset

Deprecated node specific properties

Deprecated properties not inherited from the base binding file.

(None)

Base properties

Properties inherited from the base binding file, which defines common properties that may be set on many nodes. Not all of these may apply to the “st,stm32-ltdc” compatible.

Name

Type

Details

clocks

phandle-array

 
Clock gate information

This property is required.

interrupts

array

 
interrupts for device

This property is required.

See Important properties for more information.

status

string

 
indicates the operational status of a device

Legal values: 'ok', 'okay', 'disabled', 'reserved', 'fail', 'fail-sss'

See Important properties for more information.

compatible

string-array

 
compatible strings

This property is required.

See Important properties for more information.

reg

array

 
register space

See Important properties for more information.

reg-names

string-array

 
name of each register space

interrupts-extended

compound

 
extended interrupt specifier for device

interrupt-names

string-array

 
name of each interrupt

interrupt-parent

phandle

 
phandle to interrupt controller node

label

string

 
Human readable string describing the device (used as device_get_binding() argument)

See Important properties for more information.

This property is deprecated.

clock-names

string-array

 
name of each clock

#address-cells

int

 
number of address cells in reg property

#size-cells

int

 
number of size cells in reg property

dmas

phandle-array

 
DMA channels specifiers

dma-names

string-array

 
Provided names of DMA channel specifiers

io-channels

phandle-array

 
IO channels specifiers

io-channel-names

string-array

 
Provided names of IO channel specifiers

mboxes

phandle-array

 
mailbox / IPM channels specifiers

mbox-names

string-array

 
Provided names of mailbox / IPM channel specifiers

power-domains

phandle-array

 
Power domain specifiers

power-domain-names

string-array

 
Provided names of power domain specifiers

#power-domain-cells

int

 
Number of cells in power-domains property

zephyr,deferred-init

boolean

 
Do not initialize device automatically on boot. Device should be manually
initialized using device_init().

wakeup-source

boolean

 
Property to identify that a device can be used as wake up source.

When this property is provided a specific flag is set into the
device that tells the system that the device is capable of
wake up the system.

Wake up capable devices are disabled (interruptions will not wake up
the system) by default but they can be enabled at runtime if necessary.

zephyr,pm-device-runtime-auto

boolean

 
Automatically configure the device for runtime power management after the
init function runs.

zephyr,disabling-power-states

phandles

 
List of power states that will disable this device power.