istech,ist3931 (on i2c bus)

Vendor: Integrated Solutions Technology Inc.

Note

An implementation of a driver matching this compatible is available in drivers/display/display_ist3931.c.

Description

IST3931 65x132 display controller

Properties

Node specific properties

Properties not inherited from the base binding file.

Name

Type

Details

reset-gpios

phandle-array

 
RESET pin.

The RESET pin of IST3931 is active low.
If connected directly the MCU pin should be configured
as active low.

This property is required.

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.

voltage-converter

boolean

 
Internal voltage converter circuits will be enabled if true

voltage-follower

boolean

 
Internal voltage follower circuits will be enabled if true

lcd-bias

int

 
LCD bias ratio of the voltage required for driving the LCD

This property is required.

lcd-ct

int

 
reference voltage V0= [0.7+CT*0.005]/Bias at 24 degree Celsius

This property is required.

duty-ratio

int

 
Com_1~COM_N is select, N=Duty-ratio.

This property is required.

frame-control

int

 
Frame-control of row frequency and frame frequency. Row frequency = 3X10^6/ Frame-control Frame frequency = Row frequency / Duty-ratio

This property is required.

reverse-com-output

boolean

 
Common Output Mode Select, the output mode will be COM_1->COM_N if set to 0

reverse-seg-driver

boolean

 
Defines the relationship between RAM column address and segment driver. the mapping will be SEG1->SEG132 if set to 0

e-force-on

boolean

 
turn on whole LCD points regardless of display RAM

reverse-ram-lcd

boolean

 
Reverse the lit and unlit display relation between RAM bit data and LCD cell

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.

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 “istech,ist3931” compatible.

Name

Type

Details

reg

array

 
device address on i2c bus

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-names

string-array

 
name of each register space

interrupts

array

 
interrupts for device

See Important properties for more information.

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.

clocks

phandle-array

 
Clock gate information

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.