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+CT0.005]/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

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
`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.
`power-domain`	`phandle`	Power domain the device belongs to. The device will be notified when the power domain it belongs to is either suspended or resumed.
`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.
`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`	device address on i2c bus 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
`zephyr,deferred-init`	`boolean`	Do not initialize device automatically on boot. Device should be manually initialized using device_init().