sitronix,st7789v (on spi bus)

Vendor: Sitronix Technology Corporation

Description

ST7789V 320x240 display controller

Properties

Properties not inherited from the base binding file.

Name

Type

Details

reset-gpios

phandle-array

 
RESET pin.

The RESET pin of ST7789V is active low.
If connected directly the MCU pin should be configured
as active low.

cmd-data-gpios

phandle-array

 
D/CX pin. If configured, 4-lines serial interface is used, otherwise
3-lines serial interface is used and a D/CX bit (9-bit) is added to
the protocol.

The D/CX pin of ST7789V is active low (transmission command byte).
If connected directly the MCU pin should be configured
as active low.

x-offset

int

 
The column offset in pixels of the LCD to the controller memory

This property is required.

y-offset

int

 
The row offset in pixels of the LCD to the controller memory

This property is required.

vcom

int

 
VCOM Setting

This property is required.

gctrl

int

 
Gate Control

This property is required.

vrhs

int

 
VRH Setting

vdvs

int

 
VDV Setting

mdac

int

 
Memory Data Access Control

This property is required.

lcm

int

 
LCM Setting

This property is required.

colmod

int

 
Interface Pixel Format

This property is required.

gamma

int

 
Gamma Setting

This property is required.

porch-param

uint8-array

 
Porch Setting

This property is required.

cmd2en-param

uint8-array

 
Command 2 Enable Parameter

This property is required.

pwctrl1-param

uint8-array

 
Power Control 1 Parameter

This property is required.

pvgam-param

uint8-array

 
Positive Voltage Gamma Control Parameter

This property is required.

nvgam-param

uint8-array

 
Negative Voltage Gamma Control Parameter

This property is required.

ram-param

uint8-array

 
RAM Control Parameter

This property is required.

rgb-param

uint8-array

 
RGB Interface Control Parameter

This property is required.

spi-max-frequency

int

 
Maximum clock frequency of device's SPI interface in Hz

This property is required.

duplex

int

 
Duplex mode, full or half. By default it's always full duplex thus 0
as this is, by far, the most common mode.
Use the macros not the actual enum value, here is the concordance
list (see dt-bindings/spi/spi.h)
  0    SPI_FULL_DUPLEX
  2048 SPI_HALF_DUPLEX

Legal values: 0, 2048

frame-format

int

 
Motorola or TI frame format. By default it's always Motorola's,
thus 0 as this is, by far, the most common format.
Use the macros not the actual enum value, here is the concordance
list (see dt-bindings/spi/spi.h)
  0     SPI_FRAME_FORMAT_MOTOROLA
  32768 SPI_FRAME_FORMAT_TI

Legal values: 0, 32768

spi-cpol

boolean

 
SPI clock polarity which indicates the clock idle state.
If it is used, the clock idle state is logic high; otherwise, low.

spi-cpha

boolean

 
SPI clock phase that indicates on which edge data is sampled.
If it is used, data is sampled on the second edge; otherwise, on the first edge.

spi-hold-cs

boolean

 
In some cases, it is necessary for the master to manage SPI chip select
under software control, so that multiple spi transactions can be performed
without releasing it. A typical use case is variable length SPI packets
where the first spi transaction reads the length and the second spi transaction
reads length bytes.

supply-gpios

phandle-array

 
GPIO specifier that controls power to the device.

This property should be provided when the device has a dedicated
switch that controls power to the device.  The supply state is
entirely the responsibility of the device driver.

Contrast with vin-supply.

vin-supply

phandle

 
Reference to the regulator that controls power to the device.
The referenced devicetree node must have a regulator compatible.

This property should be provided when device power is supplied
by a shared regulator.  The supply state is dependent on the
request status of all devices fed by the regulator.

Contrast with supply-gpios.  If both properties are provided
then the regulator must be requested before the supply GPIOS is
set to an active state, and the supply GPIOS must be set to an
inactive state before releasing the regulator.

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.