cirque,pinnacle (on spi bus)
Vendor: Cirque Corporation
Description
Cirque Pinnacle 1CA027 ASIC trackpad connected through SPI
Properties
Properties not inherited from the base binding file.
Name |
Type |
Details |
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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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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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SPI clock polarity which indicates the clock idle state.
If it is used, the clock idle state is logic high; otherwise, low.
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SPI clock phase that indicates on which edge data is sampled.
If it is used, data is sampled on the second edge; otherwise, on the first edge.
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In some cases, it is necessary for the master to manage SPI chip select
under software control, so that multiple spi transactions can be performed
without releasing it. A typical use case is variable length SPI packets
where the first spi transaction reads the length and the second spi transaction
reads length bytes.
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Data Ready (DR) GPIO pin. The DR pin is connected to Pinnacle HW_DR
which is active high when SW_DR or SW_CC are asserted. If connected
directly, the MCU pin should be configured as active low.
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ADC attenuation, 1x is the most sensitive and 4x is the least sensitive.
Default value: Legal values: |
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Data output mode in which position is reported. In the relative mode
each position is reported as relative to the last position. In the
absolute mode absolute coordinates are reported.
Default value: Legal values: |
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The number of empty packets where both X and Y are set to 0. They are
started to be sent when a finger presence is detected missing (no touch
detected) every 10 ms. They are stopped to be sent when a finger presence
it detected. An application can count these packets in order to detect
taps. When set to 0, no empty packets are sent. Supported values from 0
to 255.
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In the absolute mode enable clipping of reported coordinates which are
outside of the active range.
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The minimum X value which can be reported.
Default value: |
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The maximum X value which can be reported.
Default value: |
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The minimum Y value which can be reported.
Default value: |
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The maximum Y value which can be reported.
Default value: |
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In the absolute mode enable scaling of coordinates according to
the specified resolution for X and Y axises. The scaling is applied only
when the clipping is enabled.
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Resolution for the X axis.
Default value: |
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Resolution for the Y axis.
Default value: |
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In the absolute mode invert X coordinate.
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In the absolute mode invert Y coordinate.
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In the relative mode enable the primary tap.
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In the relative mode swap X and Y coordinates. This is equivalent for
rotating coordinates by 90 degrees.
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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 “cirque,pinnacle” compatible.
Name |
Type |
Details |
|---|---|---|
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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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Automatically configure the device for runtime power management after the
init function runs.
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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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register space
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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Human readable string describing the device (used as device_get_binding() argument)
See Important properties for more information. This property is deprecated. |
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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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Do not initialize device automatically on boot. Device should be manually
initialized using device_init().
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