solomon,ssd1322 (on mipi-dbi bus)

Vendor: Solomon Systech Limited

Note

An implementation of a driver matching this compatible is available in drivers/display/ssd1322.c.

Description

SSD1322 display controller

Properties

Properties not inherited from the base binding file.

Name

Type

Details

column-offset

int

 
First visible column number.

This property is required.

row-offset

int

 
COM pin used as first row, mapped to the line set by start-line.
The default corresponds to the reset value of the register.

start-line

int

 
Starting line address of display ram (0-127).
The default corresponds to the reset value of the register.

mux-ratio

int

 
COM Pin Multiplex ratio from 16-128.
The default corresponds to the reset value of the register.

Default value: 128

remap-row-first

boolean

 
Set scan direction to vertical first (swap rows/columns).

remap-columns

boolean

 
Reverse the column order (flip horizontally).

remap-rows

boolean

 
Reverse the row order (flip vertically).

remap-nibble

boolean

 
Reverse every group of 4 nibbles.

remap-com-odd-even-split

boolean

 
Odd even split of COM pins.

remap-com-dual

boolean

 
Dual COM mode.

segments-per-pixel

int

 
Map multiple adjacent segments to one pixel.
Some displays (such as the Newhaven Display NHD-2.7-12864WDW3) connect
two adjacent pixel drivers to each physical pixel. By setting this to 2,
the driver will repeat each pixel. The default disables this functionality,
as it only applies to very specific display models.

Default value: 1

Legal values: 1, 2

duplex

int

 
SPI Duplex mode, full or half. By default it's always full duplex thus 0
as this is, by far, the most common mode.
Selecting half duplex allows to use SPI MOSI as a bidirectional line,
typically used when only one data line is connected.
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

mipi-cpol

boolean

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

mipi-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.

mipi-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.

mipi-max-frequency

int

 
Maximum clock frequency of device's MIPI interface in Hz

mipi-mode

string

 
MIPI DBI mode in use. These definitions should match those in
dt-bindings/mipi_dbi/mipi_dbi.h

Legal values: 'MIPI_DBI_MODE_SPI_3WIRE', 'MIPI_DBI_MODE_SPI_4WIRE', 'MIPI_DBI_MODE_6800_BUS_16_BIT', 'MIPI_DBI_MODE_6800_BUS_9_BIT', 'MIPI_DBI_MODE_6800_BUS_8_BIT', 'MIPI_DBI_MODE_8080_BUS_16_BIT', 'MIPI_DBI_MODE_8080_BUS_9_BIT', 'MIPI_DBI_MODE_8080_BUS_8_BIT'

te-mode

string

 
MIPI DBI tearing enable signal mode. Defaults to disabled.

Default value: MIPI_DBI_TE_NO_EDGE

Legal values: 'MIPI_DBI_TE_NO_EDGE', 'MIPI_DBI_TE_RISING_EDGE', 'MIPI_DBI_TE_FALLING_EDGE'

te-delay

int

 
Delay in microseconds to wait before transmitting display data after a
tearing enable synchronization signal is seen. Defaults to 0 since most
controllers will not need a delay.

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.