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ftdi,ft800 (on spi bus)
Vendor: Future Technology Devices International Ltd.
Description
FTDI FT800 graphic controller
Properties
Properties not inherited from the base binding file.
Name |
Type |
Details |
|---|---|---|
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Optional IRQ line of FT800 controller
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The value to divide the main clock by for PCLK. If the
typical main clock was 48MHz and this value is 5, the PCLK
will be 9.6 MHz. Must be positive value to enable the screen
This property is required. |
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Polarity of PCLK. If it is set to zero, PCLK polarity is on
the rising edge. If it is set to one, PCLK polarity is on
the falling edge.
This property is required. |
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Controls the transition of RGB signals with PCLK active clock
edge. When set to 0, R[7:2],G[7:2] and B[7:2] signals change
following the active edge of PCLK. When set to 1, R[7:2]
changes a PCLK clock early and B[7:2] a PCLK clock later,
which helps reduce the system noise.
This property is required. |
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Controls the arrangement of output RGB pins, which may help
support different LCD panel. Please check FT800 Programmers
Guide for details.
This property is required. |
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Number of visible lines of pixels in one frame
This property is required. |
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Number of invisible lines at the beginning of a new frame
This property is required. |
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Number of all lines in a frame. It includes all visible and
invisible lines at the beginning and at the end of a frame.
This property is required. |
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Number of lines for the high state of signal VSYNC at
the start of new frame.
This property is required. |
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Number of lines for signal VSYNC toggle takes at the start
of new frame.
This property is required. |
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Number of PCLK cycles per visible part of horizontal line
This property is required. |
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Number of PCLK cycles before pixels are scanned out for
given line
This property is required. |
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Number of total PCLK cycles per horizontal line scan.
This property is required. |
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Number of PCLK cycles of HSYNC high state during start of line
This property is required. |
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Number of PCLK cycles for HSYNC toggle during start of line.
This property is required. |
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Maximum clock frequency of device's SPI interface in Hz
This property is required. |
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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: |
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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: |
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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.
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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.
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Deprecated properties not inherited from the base binding file.
(None)
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 “ftdi,ft800” compatible.
Name |
Type |
Details |
|---|---|---|
|
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register space
This property is required. See Important properties for more information. |
|
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Human readable string describing the device (used as device_get_binding() argument)
This property is required. See Important properties for more information. |
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indicates the operational status of a device
Legal values: See Important properties for more information. |
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compatible strings
This property is required. See Important properties for more information. |
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name of each register space
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interrupts for device
See Important properties for more information. |
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extended interrupt specifier for device
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name of each interrupt
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phandle to interrupt controller node
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Clock gate information
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name of each clock
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number of address cells in reg property
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number of size cells in reg property
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DMA channels specifiers
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Provided names of DMA channel specifiers
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IO channels specifiers
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Provided names of IO channel specifiers
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mailbox / IPM channels specifiers
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Provided names of mailbox / IPM channel specifiers
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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.
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Power domain the device belongs to.
The device will be notified when the power domain it belongs to is either
suspended or resumed.
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