istech,ist3931 (on i2c bus)

Vendor: Integrated Solutions Technology Inc.

Description

IST3931 65x132 display controller

Properties

Properties not inherited from the base binding file.

Name

Type

Details

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.

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