dt-bindings: input: Add bindings for Azoteq IQS7210A/7211A/E
Add bindings for the Azoteq IQS7210A/7211A/E family of trackpad/ touchscreen controllers. Signed-off-by: Jeff LaBundy <jeff@labundy.com> Reviewed-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/ZHVEa0yM1LLUJEfO@nixie71 Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
Jeff LaBundy
Dmitry Torokhov
parent
0859c1764c
commit
d623946320
@ -0,0 +1,769 @@
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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/input/touchscreen/azoteq,iqs7211.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Azoteq IQS7210A/7211A/E Trackpad/Touchscreen Controller
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maintainers:
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- Jeff LaBundy <jeff@labundy.com>
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description: |
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The Azoteq IQS7210A, IQS7211A and IQS7211E trackpad and touchscreen control-
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lers employ projected-capacitance sensing and can track two contacts.
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Link to datasheets: https://www.azoteq.com/
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properties:
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compatible:
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enum:
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- azoteq,iqs7210a
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- azoteq,iqs7211a
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- azoteq,iqs7211e
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reg:
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maxItems: 1
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irq-gpios:
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maxItems: 1
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description:
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Specifies the GPIO connected to the device's active-low RDY output. The
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pin doubles as the IQS7211E's active-low MCLR input, in which case this
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GPIO must be configured as open-drain.
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reset-gpios:
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maxItems: 1
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description:
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Specifies the GPIO connected to the device's active-low MCLR input. The
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device is temporarily held in hardware reset prior to initialization if
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this property is present.
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azoteq,forced-comms:
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type: boolean
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description:
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Enables forced communication; to be used with host adapters that cannot
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tolerate clock stretching.
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azoteq,forced-comms-default:
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$ref: /schemas/types.yaml#/definitions/uint32
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enum: [0, 1]
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description:
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Indicates if the device's OTP memory enables (1) or disables (0) forced
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communication by default. Specifying this property can expedite startup
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time if the default value is known.
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If this property is not specified, communication is not initiated until
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the device asserts its RDY pin shortly after exiting hardware reset. At
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that point, forced communication is either enabled or disabled based on
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the presence or absence of the 'azoteq,forced-comms' property.
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azoteq,rate-active-ms:
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minimum: 0
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maximum: 65535
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description: Specifies the report rate (in ms) during active mode.
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azoteq,rate-touch-ms:
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minimum: 0
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maximum: 65535
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description: Specifies the report rate (in ms) during idle-touch mode.
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azoteq,rate-idle-ms:
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minimum: 0
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maximum: 65535
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description: Specifies the report rate (in ms) during idle mode.
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azoteq,rate-lp1-ms:
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minimum: 0
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maximum: 65535
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description: Specifies the report rate (in ms) during low-power mode 1.
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azoteq,rate-lp2-ms:
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minimum: 0
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maximum: 65535
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description: Specifies the report rate (in ms) during low-power mode 2.
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azoteq,timeout-active-ms:
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multipleOf: 1000
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minimum: 0
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maximum: 65535000
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description:
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Specifies the length of time (in ms) to wait for an event before moving
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from active mode to idle or idle-touch modes.
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azoteq,timeout-touch-ms:
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multipleOf: 1000
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minimum: 0
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maximum: 65535000
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description:
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Specifies the length of time (in ms) to wait for an event before moving
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from idle-touch mode to idle mode.
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azoteq,timeout-idle-ms:
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multipleOf: 1000
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minimum: 0
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maximum: 65535000
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description:
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Specifies the length of time (in ms) to wait for an event before moving
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from idle mode to low-power mode 1.
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azoteq,timeout-lp1-ms:
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multipleOf: 1000
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minimum: 0
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maximum: 65535000
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description:
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Specifies the length of time (in ms) to wait for an event before moving
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from low-power mode 1 to low-power mode 2.
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azoteq,timeout-lp2-ms:
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multipleOf: 1000
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minimum: 0
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maximum: 60000
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description:
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Specifies the rate (in ms) at which the trackpad reference values
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are updated during low-power modes 1 and 2.
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azoteq,timeout-ati-ms:
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multipleOf: 1000
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minimum: 0
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maximum: 60000
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description:
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Specifies the delay (in ms) before the automatic tuning implementation
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(ATI) is retried in the event it fails to complete.
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azoteq,timeout-comms-ms:
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minimum: 0
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maximum: 65535
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description:
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Specifies the delay (in ms) before a communication window is closed.
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azoteq,timeout-press-ms:
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multipleOf: 1000
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minimum: 0
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maximum: 60000
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description:
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Specifies the length of time (in ms) to wait before automatically
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releasing a press event. Specify zero to allow the press state to
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persist indefinitely.
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azoteq,fosc-freq:
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$ref: /schemas/types.yaml#/definitions/uint32
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enum: [0, 1]
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description: |
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Specifies the device's core clock frequency as follows:
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0: 14 MHz
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1: 18 MHz
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azoteq,fosc-trim:
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$ref: /schemas/types.yaml#/definitions/uint32
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minimum: 0
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maximum: 15
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description: Specifies the device's core clock frequency trim.
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azoteq,num-contacts:
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$ref: /schemas/types.yaml#/definitions/uint32
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minimum: 0
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maximum: 2
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default: 0
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description: Specifies the number of contacts reported by the device.
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azoteq,contact-split:
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$ref: /schemas/types.yaml#/definitions/uint32
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minimum: 0
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maximum: 255
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description: Specifies the contact (finger) split factor.
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azoteq,trim-x:
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$ref: /schemas/types.yaml#/definitions/uint32
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minimum: 0
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maximum: 255
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description: Specifies the horizontal trim width.
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azoteq,trim-y:
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$ref: /schemas/types.yaml#/definitions/uint32
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minimum: 0
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maximum: 255
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description: Specifies the vertical trim height.
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trackpad:
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type: object
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description: Represents all channels associated with the trackpad.
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properties:
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azoteq,rx-enable:
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$ref: /schemas/types.yaml#/definitions/uint32-array
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minItems: 1
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maxItems: 8
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items:
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minimum: 0
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maximum: 7
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description:
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Specifies the order of the CRx pin(s) associated with the trackpad.
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azoteq,tx-enable:
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$ref: /schemas/types.yaml#/definitions/uint32-array
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minItems: 1
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maxItems: 12
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items:
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minimum: 0
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maximum: 11
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description:
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Specifies the order of the CTx pin(s) associated with the trackpad.
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azoteq,channel-select:
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$ref: /schemas/types.yaml#/definitions/uint32-array
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minItems: 1
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maxItems: 36
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items:
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minimum: 0
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maximum: 255
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description: |
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Specifies the channels mapped to each cycle in the following order:
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Cycle 0, slot 0
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Cycle 0, slot 1
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Cycle 1, slot 0
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Cycle 1, slot 1
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...and so on. Specify 255 to disable a given slot.
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azoteq,ati-frac-div-fine:
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$ref: /schemas/types.yaml#/definitions/uint32
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minimum: 0
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maximum: 31
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description: Specifies the trackpad's ATI fine fractional divider.
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azoteq,ati-frac-mult-coarse:
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$ref: /schemas/types.yaml#/definitions/uint32
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minimum: 0
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maximum: 15
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description: Specifies the trackpad's ATI coarse fractional multiplier.
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azoteq,ati-frac-div-coarse:
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$ref: /schemas/types.yaml#/definitions/uint32
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minimum: 0
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maximum: 31
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description: Specifies the trackpad's ATI coarse fractional divider.
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azoteq,ati-comp-div:
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$ref: /schemas/types.yaml#/definitions/uint32
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minimum: 0
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maximum: 31
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description: Specifies the trackpad's ATI compensation divider.
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azoteq,ati-target:
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$ref: /schemas/types.yaml#/definitions/uint32
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minimum: 0
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maximum: 65535
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description: Specifies the trackpad's ATI target.
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azoteq,touch-enter:
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$ref: /schemas/types.yaml#/definitions/uint32
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minimum: 0
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maximum: 255
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description: Specifies the trackpad's touch entrance factor.
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azoteq,touch-exit:
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$ref: /schemas/types.yaml#/definitions/uint32
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minimum: 0
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maximum: 255
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description: Specifies the trackpad's touch exit factor.
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azoteq,thresh:
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$ref: /schemas/types.yaml#/definitions/uint32
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minimum: 0
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maximum: 255
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description: Specifies the trackpad's stationary touch threshold.
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azoteq,conv-period:
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$ref: /schemas/types.yaml#/definitions/uint32
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minimum: 0
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maximum: 255
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description: Specifies the trackpad's conversion period.
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azoteq,conv-frac:
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$ref: /schemas/types.yaml#/definitions/uint32
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minimum: 0
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maximum: 255
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description: Specifies the trackpad's conversion frequency fraction.
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patternProperties:
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"^event-(tap(-double|-triple)?|hold|palm|swipe-(x|y)-(pos|neg)(-hold)?)$":
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type: object
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$ref: ../input.yaml#
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description:
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Represents a gesture event reported by the trackpad. In the case of
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axial gestures, the duration or distance specified in one direction
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applies to both directions along the same axis.
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properties:
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linux,code: true
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azoteq,gesture-max-ms:
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minimum: 0
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maximum: 65535
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description: Specifies the maximum duration of tap/swipe gestures.
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azoteq,gesture-mid-ms:
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minimum: 0
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maximum: 65535
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description:
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Specifies the maximum duration between subsequent tap gestures
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(IQS7211E only).
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azoteq,gesture-min-ms:
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minimum: 0
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maximum: 65535
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description: Specifies the minimum duration of hold gestures.
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azoteq,gesture-dist:
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$ref: /schemas/types.yaml#/definitions/uint32
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minimum: 0
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maximum: 65535
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description:
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Specifies the minimum (swipe) or maximum (tap and hold) distance
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a finger may travel to be considered a gesture.
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azoteq,gesture-dist-rep:
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$ref: /schemas/types.yaml#/definitions/uint32
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minimum: 0
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maximum: 65535
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description:
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Specifies the minimum distance a finger must travel to elicit a
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repeated swipe gesture (IQS7211E only).
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azoteq,gesture-angle:
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$ref: /schemas/types.yaml#/definitions/uint32
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minimum: 0
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maximum: 75
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description:
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Specifies the maximum angle (in degrees) a finger may travel to
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be considered a swipe gesture.
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azoteq,thresh:
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$ref: /schemas/types.yaml#/definitions/uint32
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minimum: 0
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maximum: 42
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description: Specifies the palm gesture threshold (IQS7211E only).
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additionalProperties: false
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dependencies:
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azoteq,rx-enable: ["azoteq,tx-enable"]
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azoteq,tx-enable: ["azoteq,rx-enable"]
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azoteq,channel-select: ["azoteq,rx-enable"]
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additionalProperties: false
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alp:
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type: object
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$ref: ../input.yaml#
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description: Represents the alternate low-power channel (ALP).
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properties:
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azoteq,rx-enable:
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$ref: /schemas/types.yaml#/definitions/uint32-array
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minItems: 1
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maxItems: 8
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items:
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minimum: 0
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maximum: 7
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description:
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Specifies the CRx pin(s) associated with the ALP in no particular
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order.
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azoteq,tx-enable:
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$ref: /schemas/types.yaml#/definitions/uint32-array
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minItems: 1
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maxItems: 12
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items:
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minimum: 0
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maximum: 11
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description:
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Specifies the CTx pin(s) associated with the ALP in no particular
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order.
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azoteq,ati-frac-div-fine:
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$ref: /schemas/types.yaml#/definitions/uint32
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minimum: 0
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maximum: 31
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description: Specifies the ALP's ATI fine fractional divider.
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azoteq,ati-frac-mult-coarse:
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$ref: /schemas/types.yaml#/definitions/uint32
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minimum: 0
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maximum: 15
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description: Specifies the ALP's ATI coarse fractional multiplier.
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azoteq,ati-frac-div-coarse:
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$ref: /schemas/types.yaml#/definitions/uint32
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minimum: 0
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maximum: 31
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description: Specifies the ALP's ATI coarse fractional divider.
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azoteq,ati-comp-div:
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$ref: /schemas/types.yaml#/definitions/uint32
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minimum: 0
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maximum: 31
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description: Specifies the ALP's ATI compensation divider.
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azoteq,ati-target:
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$ref: /schemas/types.yaml#/definitions/uint32
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minimum: 0
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maximum: 65535
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description: Specifies the ALP's ATI target.
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azoteq,ati-base:
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$ref: /schemas/types.yaml#/definitions/uint32
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multipleOf: 8
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minimum: 0
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maximum: 255
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description: Specifies the ALP's ATI base.
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azoteq,ati-mode:
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$ref: /schemas/types.yaml#/definitions/uint32
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enum: [0, 1]
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description: |
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Specifies the ALP's ATI mode as follows:
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0: Partial
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1: Full
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azoteq,sense-mode:
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$ref: /schemas/types.yaml#/definitions/uint32
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enum: [0, 1]
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description: |
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Specifies the ALP's sensing mode as follows:
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0: Self capacitive
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1: Mutual capacitive
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azoteq,debounce-enter:
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$ref: /schemas/types.yaml#/definitions/uint32
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minimum: 0
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maximum: 255
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description: Specifies the ALP's debounce entrance factor.
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azoteq,debounce-exit:
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$ref: /schemas/types.yaml#/definitions/uint32
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minimum: 0
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maximum: 255
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description: Specifies the ALP's debounce exit factor.
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azoteq,thresh:
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$ref: /schemas/types.yaml#/definitions/uint32
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minimum: 0
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maximum: 65535
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description: Specifies the ALP's proximity or touch threshold.
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azoteq,conv-period:
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$ref: /schemas/types.yaml#/definitions/uint32
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minimum: 0
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maximum: 255
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description: Specifies the ALP's conversion period.
|
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||||
azoteq,conv-frac:
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||||
$ref: /schemas/types.yaml#/definitions/uint32
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minimum: 0
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||||
maximum: 255
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||||
description: Specifies the ALP's conversion frequency fraction.
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||||
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||||
linux,code: true
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||||
additionalProperties: false
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||||
button:
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type: object
|
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description: Represents the inductive or capacitive button.
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||||
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||||
properties:
|
||||
azoteq,ati-frac-div-fine:
|
||||
$ref: /schemas/types.yaml#/definitions/uint32
|
||||
minimum: 0
|
||||
maximum: 31
|
||||
description: Specifies the button's ATI fine fractional divider.
|
||||
|
||||
azoteq,ati-frac-mult-coarse:
|
||||
$ref: /schemas/types.yaml#/definitions/uint32
|
||||
minimum: 0
|
||||
maximum: 15
|
||||
description: Specifies the button's ATI coarse fractional multiplier.
|
||||
|
||||
azoteq,ati-frac-div-coarse:
|
||||
$ref: /schemas/types.yaml#/definitions/uint32
|
||||
minimum: 0
|
||||
maximum: 31
|
||||
description: Specifies the button's ATI coarse fractional divider.
|
||||
|
||||
azoteq,ati-comp-div:
|
||||
$ref: /schemas/types.yaml#/definitions/uint32
|
||||
minimum: 0
|
||||
maximum: 31
|
||||
description: Specifies the button's ATI compensation divider.
|
||||
|
||||
azoteq,ati-target:
|
||||
$ref: /schemas/types.yaml#/definitions/uint32
|
||||
minimum: 0
|
||||
maximum: 65535
|
||||
description: Specifies the button's ATI target.
|
||||
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||||
azoteq,ati-base:
|
||||
$ref: /schemas/types.yaml#/definitions/uint32
|
||||
multipleOf: 8
|
||||
minimum: 0
|
||||
maximum: 255
|
||||
description: Specifies the button's ATI base.
|
||||
|
||||
azoteq,ati-mode:
|
||||
$ref: /schemas/types.yaml#/definitions/uint32
|
||||
enum: [0, 1]
|
||||
description: |
|
||||
Specifies the button's ATI mode as follows:
|
||||
0: Partial
|
||||
1: Full
|
||||
|
||||
azoteq,sense-mode:
|
||||
$ref: /schemas/types.yaml#/definitions/uint32
|
||||
enum: [0, 1, 2]
|
||||
description: |
|
||||
Specifies the button's sensing mode as follows:
|
||||
0: Self capacitive
|
||||
1: Mutual capacitive
|
||||
2: Inductive
|
||||
|
||||
azoteq,touch-enter:
|
||||
$ref: /schemas/types.yaml#/definitions/uint32
|
||||
minimum: 0
|
||||
maximum: 255
|
||||
description: Specifies the button's touch entrance factor.
|
||||
|
||||
azoteq,touch-exit:
|
||||
$ref: /schemas/types.yaml#/definitions/uint32
|
||||
minimum: 0
|
||||
maximum: 255
|
||||
description: Specifies the button's touch exit factor.
|
||||
|
||||
azoteq,debounce-enter:
|
||||
$ref: /schemas/types.yaml#/definitions/uint32
|
||||
minimum: 0
|
||||
maximum: 255
|
||||
description: Specifies the button's debounce entrance factor.
|
||||
|
||||
azoteq,debounce-exit:
|
||||
$ref: /schemas/types.yaml#/definitions/uint32
|
||||
minimum: 0
|
||||
maximum: 255
|
||||
description: Specifies the button's debounce exit factor.
|
||||
|
||||
azoteq,thresh:
|
||||
$ref: /schemas/types.yaml#/definitions/uint32
|
||||
minimum: 0
|
||||
maximum: 65535
|
||||
description: Specifies the button's proximity threshold.
|
||||
|
||||
azoteq,conv-period:
|
||||
$ref: /schemas/types.yaml#/definitions/uint32
|
||||
minimum: 0
|
||||
maximum: 255
|
||||
description: Specifies the button's conversion period.
|
||||
|
||||
azoteq,conv-frac:
|
||||
$ref: /schemas/types.yaml#/definitions/uint32
|
||||
minimum: 0
|
||||
maximum: 255
|
||||
description: Specifies the button's conversion frequency fraction.
|
||||
|
||||
patternProperties:
|
||||
"^event-(prox|touch)$":
|
||||
type: object
|
||||
$ref: ../input.yaml#
|
||||
description:
|
||||
Represents a proximity or touch event reported by the button.
|
||||
|
||||
properties:
|
||||
linux,code: true
|
||||
|
||||
additionalProperties: false
|
||||
|
||||
additionalProperties: false
|
||||
|
||||
wakeup-source: true
|
||||
|
||||
touchscreen-size-x: true
|
||||
touchscreen-size-y: true
|
||||
touchscreen-inverted-x: true
|
||||
touchscreen-inverted-y: true
|
||||
touchscreen-swapped-x-y: true
|
||||
|
||||
dependencies:
|
||||
touchscreen-size-x: ["azoteq,num-contacts"]
|
||||
touchscreen-size-y: ["azoteq,num-contacts"]
|
||||
touchscreen-inverted-x: ["azoteq,num-contacts"]
|
||||
touchscreen-inverted-y: ["azoteq,num-contacts"]
|
||||
touchscreen-swapped-x-y: ["azoteq,num-contacts"]
|
||||
|
||||
required:
|
||||
- compatible
|
||||
- reg
|
||||
- irq-gpios
|
||||
|
||||
additionalProperties: false
|
||||
|
||||
allOf:
|
||||
- $ref: touchscreen.yaml#
|
||||
|
||||
- if:
|
||||
properties:
|
||||
compatible:
|
||||
contains:
|
||||
const: azoteq,iqs7210a
|
||||
|
||||
then:
|
||||
properties:
|
||||
alp:
|
||||
properties:
|
||||
azoteq,rx-enable:
|
||||
maxItems: 4
|
||||
items:
|
||||
minimum: 4
|
||||
|
||||
else:
|
||||
properties:
|
||||
azoteq,timeout-press-ms: false
|
||||
|
||||
alp:
|
||||
properties:
|
||||
azoteq,ati-mode: false
|
||||
|
||||
button: false
|
||||
|
||||
- if:
|
||||
properties:
|
||||
compatible:
|
||||
contains:
|
||||
const: azoteq,iqs7211e
|
||||
|
||||
then:
|
||||
properties:
|
||||
reset-gpios: false
|
||||
|
||||
trackpad:
|
||||
properties:
|
||||
azoteq,tx-enable:
|
||||
maxItems: 13
|
||||
items:
|
||||
maximum: 12
|
||||
|
||||
alp:
|
||||
properties:
|
||||
azoteq,tx-enable:
|
||||
maxItems: 13
|
||||
items:
|
||||
maximum: 12
|
||||
|
||||
examples:
|
||||
- |
|
||||
#include <dt-bindings/gpio/gpio.h>
|
||||
#include <dt-bindings/input/input.h>
|
||||
|
||||
i2c {
|
||||
#address-cells = <1>;
|
||||
#size-cells = <0>;
|
||||
|
||||
touch@56 {
|
||||
compatible = "azoteq,iqs7210a";
|
||||
reg = <0x56>;
|
||||
irq-gpios = <&gpio 4 GPIO_ACTIVE_LOW>;
|
||||
reset-gpios = <&gpio 17 (GPIO_ACTIVE_LOW |
|
||||
GPIO_PUSH_PULL)>;
|
||||
azoteq,num-contacts = <2>;
|
||||
|
||||
trackpad {
|
||||
azoteq,rx-enable = <6>, <5>, <4>, <3>, <2>;
|
||||
azoteq,tx-enable = <1>, <7>, <8>, <9>, <10>;
|
||||
};
|
||||
|
||||
button {
|
||||
azoteq,sense-mode = <2>;
|
||||
azoteq,touch-enter = <40>;
|
||||
azoteq,touch-exit = <36>;
|
||||
|
||||
event-touch {
|
||||
linux,code = <KEY_HOME>;
|
||||
};
|
||||
};
|
||||
|
||||
alp {
|
||||
azoteq,sense-mode = <1>;
|
||||
linux,code = <KEY_POWER>;
|
||||
};
|
||||
};
|
||||
};
|
||||
|
||||
- |
|
||||
#include <dt-bindings/gpio/gpio.h>
|
||||
#include <dt-bindings/input/input.h>
|
||||
|
||||
i2c {
|
||||
#address-cells = <1>;
|
||||
#size-cells = <0>;
|
||||
|
||||
touch@56 {
|
||||
compatible = "azoteq,iqs7211e";
|
||||
reg = <0x56>;
|
||||
irq-gpios = <&gpio 4 (GPIO_ACTIVE_LOW |
|
||||
GPIO_OPEN_DRAIN)>;
|
||||
|
||||
trackpad {
|
||||
event-tap {
|
||||
linux,code = <KEY_PLAYPAUSE>;
|
||||
};
|
||||
|
||||
event-tap-double {
|
||||
linux,code = <KEY_SHUFFLE>;
|
||||
};
|
||||
|
||||
event-tap-triple {
|
||||
linux,code = <KEY_AGAIN>;
|
||||
};
|
||||
|
||||
event-hold {
|
||||
linux,code = <KEY_STOP>;
|
||||
};
|
||||
|
||||
event-palm {
|
||||
linux,code = <KEY_EXIT>;
|
||||
};
|
||||
|
||||
event-swipe-x-pos {
|
||||
linux,code = <KEY_REWIND>;
|
||||
};
|
||||
|
||||
event-swipe-x-pos-hold {
|
||||
linux,code = <KEY_PREVIOUS>;
|
||||
};
|
||||
|
||||
event-swipe-x-neg {
|
||||
linux,code = <KEY_FASTFORWARD>;
|
||||
};
|
||||
|
||||
event-swipe-x-neg-hold {
|
||||
linux,code = <KEY_NEXT>;
|
||||
};
|
||||
|
||||
event-swipe-y-pos {
|
||||
linux,code = <KEY_VOLUMEUP>;
|
||||
};
|
||||
|
||||
event-swipe-y-pos-hold {
|
||||
linux,code = <KEY_MUTE>;
|
||||
};
|
||||
|
||||
event-swipe-y-neg {
|
||||
linux,code = <KEY_VOLUMEDOWN>;
|
||||
};
|
||||
|
||||
event-swipe-y-neg-hold {
|
||||
linux,code = <KEY_MUTE>;
|
||||
};
|
||||
};
|
||||
};
|
||||
};
|
||||
|
||||
...
|
||||
Loading…
x
Reference in New Issue
Block a user