ultrachip,uc8176 (on spi bus)

Description

UltraChip UC8176 EPD controller

Properties

Top level properties

These property descriptions apply to “ultrachip,uc8176” nodes themselves. This page also describes child node properties in the following sections.

Properties not inherited from the base binding file.

Name	Type	Details
`reset-gpios`	`phandle-array`	RESET pin. The RESET pin of UC81xx is active low. If connected directly the MCU pin should be configured as active low. This property is required.
`dc-gpios`	`phandle-array`	DC pin. The DC pin of UC81xx is active low (transmission command byte). If connected directly the MCU pin should be configured as active low. This property is required.
`busy-gpios`	`phandle-array`	BUSY pin. The BUSY pin of UC81xx is active low. If connected directly the MCU pin should be configured as active low. This property is required.
`softstart`	`uint8-array`	Booster Soft Start (BTST) values
`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`
`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.

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 “ultrachip,uc8176” compatible.

Name	Type	Details
`reg`	`array`	register space 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
`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.

Child node properties

Name	Type	Details
`pwr`	`uint8-array`	Power Setting (PWR) values
`cdi`	`int`	VCOM and data interval value. This value is optional but must be provided to enable border refresh control.
`tcon`	`int`	TCON setting value
`pll`	`int`	PLL / frame rate control
`vdcs`	`int`	VCOM DC settings
`lutc`	`uint8-array`	VCOM LUT
`lutww`	`uint8-array`	White-to-white LUT
`lutkw`	`uint8-array`	Black-to-white LUT
`lutwk`	`uint8-array`	White-to-black LUT
`lutkk`	`uint8-array`	White-to-black LUT
`lutbd`	`uint8-array`	Border LUT