dt-bindings: input: Add bindings for Azoteq IQS626A
This patch adds device tree bindings for the Azoteq IQS626A capacitive touch controller. Signed-off-by: Jeff LaBundy <jeff@labundy.com> Reviewed-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20210301234928.4298-4-jeff@labundy.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
Jeff LaBundy
Dmitry Torokhov
Родитель
51e01fc04f
Коммит
a8f1f0dc86
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@ -0,0 +1,843 @@
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# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/input/iqs626a.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Azoteq IQS626A Capacitive Touch 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 IQS626A is a 14-channel capacitive touch controller that features
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additional Hall-effect and inductive sensing capabilities.
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Link to datasheet: https://www.azoteq.com/
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allOf:
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- $ref: touchscreen/touchscreen.yaml#
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properties:
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compatible:
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const: azoteq,iqs626a
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reg:
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maxItems: 1
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interrupts:
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maxItems: 1
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"#address-cells":
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const: 1
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"#size-cells":
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const: 0
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azoteq,suspend-mode:
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$ref: /schemas/types.yaml#/definitions/uint32
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enum: [0, 1, 2, 3]
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default: 0
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description: |
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Specifies the power mode during suspend as follows:
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0: Automatic (same as normal runtime, i.e. suspend/resume disabled)
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1: Low power (all sensing at a reduced reporting rate)
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2: Ultra-low power (ULP channel proximity sensing)
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3: Halt (no sensing)
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azoteq,clk-div:
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type: boolean
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description: Divides the device's core clock by a factor of 4.
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azoteq,ulp-enable:
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type: boolean
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description:
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Permits the device to automatically enter ultra-low-power mode from low-
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power mode.
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azoteq,ulp-update:
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$ref: /schemas/types.yaml#/definitions/uint32
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enum: [0, 1, 2, 3, 4, 5, 6, 7]
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default: 3
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description: |
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Specifies the rate at which the trackpad, generic and Hall channels are
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updated during ultra-low-power mode as follows:
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0: 8
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1: 13
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2: 28
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3: 54
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4: 89
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5: 135
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6: 190
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7: 256
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azoteq,ati-band-disable:
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type: boolean
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description: Disables the ATI band check.
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azoteq,ati-lp-only:
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type: boolean
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description: Limits automatic ATI to low-power mode.
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azoteq,gpio3-select:
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$ref: /schemas/types.yaml#/definitions/uint32
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enum: [0, 1, 2, 3, 4, 5, 6, 7]
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default: 1
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description: |
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Selects the channel or group of channels for which the GPIO3 pin
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represents touch state as follows:
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0: None
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1: ULP channel
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2: Trackpad
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3: Trackpad
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4: Generic channel 0
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5: Generic channel 1
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6: Generic channel 2
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7: Hall channel
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azoteq,reseed-select:
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$ref: /schemas/types.yaml#/definitions/uint32
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enum: [0, 1, 2, 3]
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default: 0
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description: |
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Specifies the event(s) that prompt the device to reseed (i.e. reset the
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long-term average) of an associated channel as follows:
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0: None
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1: Proximity
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2: Proximity or touch
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3: Proximity, touch or deep touch
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azoteq,thresh-extend:
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type: boolean
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description: Multiplies all touch and deep-touch thresholds by 4.
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azoteq,tracking-enable:
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type: boolean
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description:
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Enables all associated channels to track their respective reference
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channels.
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azoteq,reseed-offset:
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type: boolean
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description:
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Applies an 8-count offset to all long-term averages upon either ATI or
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reseed events.
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azoteq,rate-np-ms:
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minimum: 0
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maximum: 255
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default: 150
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description: Specifies the report rate (in ms) during normal-power mode.
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azoteq,rate-lp-ms:
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minimum: 0
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maximum: 255
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default: 150
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description: Specifies the report rate (in ms) during low-power mode.
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azoteq,rate-ulp-ms:
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multipleOf: 16
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minimum: 0
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maximum: 4080
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default: 0
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description: Specifies the report rate (in ms) during ultra-low-power mode.
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azoteq,timeout-pwr-ms:
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multipleOf: 512
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minimum: 0
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maximum: 130560
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default: 2560
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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 normal-power mode to low-power mode, or (if 'azoteq,ulp-enable' is
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present) from low-power mode to ultra-low-power mode.
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azoteq,timeout-lta-ms:
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multipleOf: 512
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minimum: 0
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maximum: 130560
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default: 40960
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description:
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Specifies the length of time (in ms) to wait before resetting the long-
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term average of all channels. Specify the maximum timeout to disable it
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altogether.
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touchscreen-inverted-x: true
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touchscreen-inverted-y: true
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touchscreen-swapped-x-y: true
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patternProperties:
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"^ulp-0|generic-[0-2]|hall$":
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type: object
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description:
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Represents a single sensing channel. A channel is active if defined and
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inactive otherwise.
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properties:
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azoteq,ati-exclude:
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type: boolean
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description:
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Prevents the channel from participating in an ATI event that is
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manually triggered during initialization.
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azoteq,reseed-disable:
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type: boolean
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description:
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Prevents the channel from being reseeded if the long-term average
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timeout (defined in 'azoteq,timeout-lta') expires.
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azoteq,meas-cap-decrease:
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type: boolean
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description:
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Decreases the internal measurement capacitance from 60 pF to 15 pF.
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azoteq,rx-inactive:
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$ref: /schemas/types.yaml#/definitions/uint32
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enum: [0, 1, 2]
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default: 0
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description: |
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Specifies how inactive CRX pins are to be terminated as follows:
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0: VSS
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1: Floating
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2: VREG (generic channels only)
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azoteq,linearize:
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type: boolean
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description:
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Enables linearization of the channel's counts (generic and Hall
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channels) or inverts the polarity of the channel's proximity or
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touch states (ULP channel).
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azoteq,dual-direction:
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type: boolean
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description:
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Specifies that the channel's long-term average is to freeze in the
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presence of either increasing or decreasing counts, thereby permit-
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ting events to be reported in either direction.
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azoteq,filt-disable:
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type: boolean
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description: Disables raw count filtering for the channel.
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azoteq,ati-mode:
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$ref: /schemas/types.yaml#/definitions/uint32
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enum: [0, 1, 2, 3]
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description: |
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Specifies the channel's ATI mode as follows:
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0: Disabled
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1: Semi-partial
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2: Partial
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3: Full
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The default value is a function of the channel and the device's reset
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user interface (RUI); reference the datasheet for further information
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about the available RUI options.
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azoteq,ati-base:
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$ref: /schemas/types.yaml#/definitions/uint32
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enum: [75, 100, 150, 200]
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description:
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Specifies the channel's ATI base. The default value is a function
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of the channel and the device's RUI.
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azoteq,ati-target:
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$ref: /schemas/types.yaml#/definitions/uint32
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multipleOf: 32
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minimum: 0
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maximum: 2016
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description:
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Specifies the channel's ATI target. The default value is a function
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of the channel and the device's RUI.
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azoteq,cct-increase:
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$ref: /schemas/types.yaml#/definitions/uint32
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minimum: 0
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maximum: 16
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default: 0
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description:
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Specifies the degree to which the channel's charge cycle time is to
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be increased, with 0 representing no increase. The maximum value is
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limited to 4 in the case of the ULP channel, and the property is un-
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available entirely in the case of the Hall channel.
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azoteq,proj-bias:
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$ref: /schemas/types.yaml#/definitions/uint32
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enum: [0, 1, 2, 3]
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default: 0
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description: |
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Specifies the bias current applied during projected-capacitance
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sensing as follows:
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0: 2.5 uA
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1: 5 uA
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2: 10 uA
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3: 20 uA
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This property is unavailable in the case of the Hall channel.
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azoteq,sense-freq:
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$ref: /schemas/types.yaml#/definitions/uint32
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enum: [0, 1, 2, 3]
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description: |
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Specifies the channel's sensing frequency as follows (parenthesized
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numbers represent the frequency if 'azoteq,clk-div' is present):
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0: 4 MHz (1 MHz)
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1: 2 MHz (500 kHz)
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2: 1 MHz (250 kHz)
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3: 500 kHz (125 kHz)
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This property is unavailable in the case of the Hall channel. The
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default value is a function of the channel and the device's RUI.
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azoteq,ati-band-tighten:
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type: boolean
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description:
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Tightens the ATI band from 1/8 to 1/16 of the desired target (ULP and
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generic channels only).
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azoteq,proj-enable:
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type: boolean
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description: Enables projected-capacitance sensing (ULP channel only).
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azoteq,filt-str-np-cnt:
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$ref: /schemas/types.yaml#/definitions/uint32
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enum: [0, 1, 2, 3]
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default: 0
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description:
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Specifies the raw count filter strength during normal-power mode (ULP
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and generic channels only).
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azoteq,filt-str-lp-cnt:
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$ref: /schemas/types.yaml#/definitions/uint32
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enum: [0, 1, 2, 3]
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default: 0
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description:
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Specifies the raw count filter strength during low-power mode (ULP and
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generic channels only).
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azoteq,filt-str-np-lta:
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$ref: /schemas/types.yaml#/definitions/uint32
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enum: [0, 1, 2, 3]
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default: 0
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description:
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Specifies the long-term average filter strength during normal-power
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mode (ULP and generic channels only).
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azoteq,filt-str-lp-lta:
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$ref: /schemas/types.yaml#/definitions/uint32
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enum: [0, 1, 2, 3]
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default: 0
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description:
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Specifies the long-term average filter strength during low-power mode
|
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(ULP and generic channels only).
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azoteq,rx-enable:
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$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 channel.
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This property is unavailable in the case of the Hall channel. The
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default value is a function of the channel and the device's RUI.
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azoteq,tx-enable:
|
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$ref: /schemas/types.yaml#/definitions/uint32-array
|
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minItems: 1
|
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maxItems: 8
|
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items:
|
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minimum: 0
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maximum: 7
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description:
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Specifies the TX pin(s) associated with the channel.
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This property is unavailable in the case of the Hall channel. The
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default value is a function of the channel and the device's RUI.
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azoteq,local-cap-size:
|
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$ref: /schemas/types.yaml#/definitions/uint32
|
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enum: [0, 1, 2, 3, 4]
|
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default: 0
|
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description: |
|
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Specifies the capacitance to be added to the channel as follows:
|
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0: 0 pF
|
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1: 0.5 pF
|
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2: 1.0 pF
|
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3: 1.5 pF
|
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4: 2.0 pF
|
||||
|
||||
This property is unavailable in the case of the ULP or Hall channels.
|
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|
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azoteq,sense-mode:
|
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$ref: /schemas/types.yaml#/definitions/uint32
|
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enum: [0, 1, 8, 9, 12, 14, 15]
|
||||
description: |
|
||||
Specifies the channel's sensing mode as follows:
|
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0: Self capacitance
|
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1: Projected capacitance
|
||||
8: Self inductance
|
||||
9: Mutual inductance
|
||||
12: External
|
||||
14: Hall effect
|
||||
15: Temperature
|
||||
|
||||
This property is unavailable in the case of the ULP or Hall channels.
|
||||
The default value is a function of the channel and the device's RUI.
|
||||
|
||||
azoteq,tx-freq:
|
||||
$ref: /schemas/types.yaml#/definitions/uint32
|
||||
enum: [0, 1, 2, 3]
|
||||
default: 0
|
||||
description: |
|
||||
Specifies the inductive sensing excitation frequency as follows
|
||||
(parenthesized numbers represent the frequency if 'azoteq,clk-div'
|
||||
is present):
|
||||
0: 16 MHz (4 MHz)
|
||||
1: 8 MHz (2 MHz)
|
||||
2: 4 MHz (1 MHz)
|
||||
3: 2 MHz (500 kHz)
|
||||
|
||||
This property is unavailable in the case of the ULP or Hall channels.
|
||||
|
||||
azoteq,invert-enable:
|
||||
type: boolean
|
||||
description:
|
||||
Inverts the polarity of the states reported for proximity, touch and
|
||||
deep-touch events relative to their respective thresholds (generic
|
||||
channels only).
|
||||
|
||||
azoteq,comp-disable:
|
||||
type: boolean
|
||||
description:
|
||||
Disables compensation for the channel (generic channels only).
|
||||
|
||||
azoteq,static-enable:
|
||||
type: boolean
|
||||
description:
|
||||
Enables the static front-end for the channel (generic channels only).
|
||||
|
||||
azoteq,assoc-select:
|
||||
$ref: /schemas/types.yaml#/definitions/string-array
|
||||
minItems: 1
|
||||
maxItems: 6
|
||||
items:
|
||||
enum:
|
||||
- ulp-0
|
||||
- trackpad-3x2
|
||||
- trackpad-3x3
|
||||
- generic-0
|
||||
- generic-1
|
||||
- generic-2
|
||||
- hall
|
||||
description:
|
||||
Specifies the associated channels for which the channel serves as a
|
||||
reference channel. By default, no channels are selected. This prop-
|
||||
erty is only available for the generic channels.
|
||||
|
||||
azoteq,assoc-weight:
|
||||
$ref: /schemas/types.yaml#/definitions/uint32
|
||||
minimum: 0
|
||||
maximum: 255
|
||||
default: 0
|
||||
description:
|
||||
Specifies the channel's impact weight if it acts as an associated
|
||||
channel (0 = 0% impact, 255 = 200% impact). This property is only
|
||||
available for the generic channels.
|
||||
|
||||
patternProperties:
|
||||
"^event-(prox|touch|deep)(-alt)?$":
|
||||
type: object
|
||||
description:
|
||||
Represents a proximity, touch or deep-touch event reported by the
|
||||
channel in response to a decrease in counts. Node names suffixed with
|
||||
'-alt' instead correspond to an increase in counts.
|
||||
|
||||
By default, the long-term average tracks an increase in counts such
|
||||
that only events corresponding to a decrease in counts are reported
|
||||
(refer to the datasheet for more information).
|
||||
|
||||
Specify 'azoteq,dual-direction' to freeze the long-term average when
|
||||
the counts increase or decrease such that events of either direction
|
||||
can be reported. Alternatively, specify 'azoteq,invert-enable' to in-
|
||||
vert the polarity of the states reported by the channel.
|
||||
|
||||
Complementary events (e.g. event-touch and event-touch-alt) can both
|
||||
be present and specify different key or switch codes, but not differ-
|
||||
ent thresholds or hysteresis (if applicable).
|
||||
|
||||
Proximity events are unavailable in the case of the Hall channel, and
|
||||
deep-touch events are only available for the generic channels. Unless
|
||||
otherwise specified, default values are a function of the channel and
|
||||
the device's RUI.
|
||||
|
||||
properties:
|
||||
azoteq,thresh:
|
||||
$ref: /schemas/types.yaml#/definitions/uint32
|
||||
minimum: 0
|
||||
maximum: 255
|
||||
description: Specifies the threshold for the event.
|
||||
|
||||
azoteq,hyst:
|
||||
$ref: /schemas/types.yaml#/definitions/uint32
|
||||
minimum: 0
|
||||
maximum: 15
|
||||
description:
|
||||
Specifies the hysteresis for the event (touch and deep-touch
|
||||
events only).
|
||||
|
||||
linux,code:
|
||||
$ref: /schemas/types.yaml#/definitions/uint32
|
||||
description: Numeric key or switch code associated with the event.
|
||||
|
||||
linux,input-type:
|
||||
$ref: /schemas/types.yaml#/definitions/uint32
|
||||
enum: [1, 5]
|
||||
description:
|
||||
Specifies whether the event is to be interpreted as a key (1) or
|
||||
a switch (5). By default, Hall-channel events are interpreted as
|
||||
switches and all others are interpreted as keys.
|
||||
|
||||
dependencies:
|
||||
linux,input-type: ["linux,code"]
|
||||
|
||||
additionalProperties: false
|
||||
|
||||
dependencies:
|
||||
azoteq,assoc-weight: ["azoteq,assoc-select"]
|
||||
|
||||
additionalProperties: false
|
||||
|
||||
"^trackpad-3x[2-3]$":
|
||||
type: object
|
||||
description:
|
||||
Represents all channels associated with the trackpad. The channels are
|
||||
collectively active if the trackpad is defined and inactive otherwise.
|
||||
|
||||
properties:
|
||||
azoteq,ati-exclude:
|
||||
type: boolean
|
||||
description:
|
||||
Prevents the trackpad channels from participating in an ATI event
|
||||
that is manually triggered during initialization.
|
||||
|
||||
azoteq,reseed-disable:
|
||||
type: boolean
|
||||
description:
|
||||
Prevents the trackpad channels from being reseeded if the long-term
|
||||
average timeout (defined in 'azoteq,timeout-lta') expires.
|
||||
|
||||
azoteq,meas-cap-decrease:
|
||||
type: boolean
|
||||
description:
|
||||
Decreases the internal measurement capacitance from 60 pF to 15 pF.
|
||||
|
||||
azoteq,rx-inactive:
|
||||
$ref: /schemas/types.yaml#/definitions/uint32
|
||||
enum: [0, 1]
|
||||
default: 0
|
||||
description: |
|
||||
Specifies how inactive CRX pins are to be terminated as follows:
|
||||
0: VSS
|
||||
1: Floating
|
||||
|
||||
azoteq,linearize:
|
||||
type: boolean
|
||||
description: Inverts the polarity of the trackpad's touch state.
|
||||
|
||||
azoteq,dual-direction:
|
||||
type: boolean
|
||||
description:
|
||||
Specifies that the trackpad's long-term averages are to freeze in
|
||||
the presence of either increasing or decreasing counts, thereby
|
||||
permitting events to be reported in either direction.
|
||||
|
||||
azoteq,filt-disable:
|
||||
type: boolean
|
||||
description: Disables raw count filtering for the trackpad channels.
|
||||
|
||||
azoteq,ati-mode:
|
||||
$ref: /schemas/types.yaml#/definitions/uint32
|
||||
enum: [0, 1, 2, 3]
|
||||
default: 0
|
||||
description: |
|
||||
Specifies the trackpad's ATI mode as follows:
|
||||
0: Disabled
|
||||
1: Semi-partial
|
||||
2: Partial
|
||||
3: Full
|
||||
|
||||
azoteq,ati-base:
|
||||
$ref: /schemas/types.yaml#/definitions/uint32-array
|
||||
minItems: 6
|
||||
maxItems: 9
|
||||
items:
|
||||
minimum: 45
|
||||
maximum: 300
|
||||
default: [45, 45, 45, 45, 45, 45, 45, 45, 45]
|
||||
description: Specifies each individual trackpad channel's ATI base.
|
||||
|
||||
azoteq,ati-target:
|
||||
$ref: /schemas/types.yaml#/definitions/uint32
|
||||
multipleOf: 32
|
||||
minimum: 0
|
||||
maximum: 2016
|
||||
default: 0
|
||||
description: Specifies the trackpad's ATI target.
|
||||
|
||||
azoteq,cct-increase:
|
||||
$ref: /schemas/types.yaml#/definitions/uint32
|
||||
minimum: 0
|
||||
maximum: 4
|
||||
default: 0
|
||||
description:
|
||||
Specifies the degree to which the trackpad's charge cycle time is to
|
||||
be increased, with 0 representing no increase.
|
||||
|
||||
azoteq,proj-bias:
|
||||
$ref: /schemas/types.yaml#/definitions/uint32
|
||||
enum: [0, 1, 2, 3]
|
||||
default: 0
|
||||
description: |
|
||||
Specifies the bias current applied during projected-capacitance
|
||||
sensing as follows:
|
||||
0: 2.5 uA
|
||||
1: 5 uA
|
||||
2: 10 uA
|
||||
3: 20 uA
|
||||
|
||||
azoteq,sense-freq:
|
||||
$ref: /schemas/types.yaml#/definitions/uint32
|
||||
enum: [0, 1, 2, 3]
|
||||
default: 0
|
||||
description: |
|
||||
Specifies the trackpad's sensing frequency as follows (parenthesized
|
||||
numbers represent the frequency if 'azoteq,clk-div' is present):
|
||||
0: 4 MHz (1 MHz)
|
||||
1: 2 MHz (500 kHz)
|
||||
2: 1 MHz (250 kHz)
|
||||
3: 500 kHz (125 kHz)
|
||||
|
||||
azoteq,ati-band-tighten:
|
||||
type: boolean
|
||||
description:
|
||||
Tightens the ATI band from 1/8 to 1/16 of the desired target.
|
||||
|
||||
azoteq,thresh:
|
||||
$ref: /schemas/types.yaml#/definitions/uint32-array
|
||||
minItems: 6
|
||||
maxItems: 9
|
||||
items:
|
||||
minimum: 0
|
||||
maximum: 255
|
||||
default: [0, 0, 0, 0, 0, 0, 0, 0, 0]
|
||||
description:
|
||||
Specifies each individual trackpad channel's touch threshold.
|
||||
|
||||
azoteq,hyst:
|
||||
$ref: /schemas/types.yaml#/definitions/uint32
|
||||
minimum: 0
|
||||
maximum: 15
|
||||
default: 0
|
||||
description: Specifies the trackpad's touch hysteresis.
|
||||
|
||||
azoteq,lta-update:
|
||||
$ref: /schemas/types.yaml#/definitions/uint32
|
||||
enum: [0, 1, 2, 3, 4, 5, 6, 7]
|
||||
default: 0
|
||||
description: |
|
||||
Specifies the update rate of the trackpad's long-term average during
|
||||
ultra-low-power mode as follows:
|
||||
0: 2
|
||||
1: 4
|
||||
2: 8
|
||||
3: 16
|
||||
4: 32
|
||||
5: 64
|
||||
6: 128
|
||||
7: 255
|
||||
|
||||
azoteq,filt-str-trackpad:
|
||||
$ref: /schemas/types.yaml#/definitions/uint32
|
||||
enum: [0, 1, 2, 3]
|
||||
default: 0
|
||||
description: Specifies the trackpad coordinate filter strength.
|
||||
|
||||
azoteq,filt-str-np-cnt:
|
||||
$ref: /schemas/types.yaml#/definitions/uint32
|
||||
enum: [0, 1, 2, 3]
|
||||
default: 0
|
||||
description:
|
||||
Specifies the raw count filter strength during normal-power mode.
|
||||
|
||||
azoteq,filt-str-lp-cnt:
|
||||
$ref: /schemas/types.yaml#/definitions/uint32
|
||||
enum: [0, 1, 2, 3]
|
||||
default: 0
|
||||
description:
|
||||
Specifies the raw count filter strength during low-power mode.
|
||||
|
||||
linux,keycodes:
|
||||
$ref: /schemas/types.yaml#/definitions/uint32-array
|
||||
minItems: 1
|
||||
maxItems: 6
|
||||
description: |
|
||||
Specifies the numeric keycodes associated with each available gesture
|
||||
in the following order (enter 0 for unused gestures):
|
||||
0: Positive flick or swipe in X direction
|
||||
1: Negative flick or swipe in X direction
|
||||
2: Positive flick or swipe in Y direction
|
||||
3: Negative flick or swipe in Y direction
|
||||
4: Tap
|
||||
5: Hold
|
||||
|
||||
azoteq,gesture-swipe:
|
||||
type: boolean
|
||||
description:
|
||||
Directs the device to interpret axial gestures as a swipe (finger
|
||||
remains on trackpad) instead of a flick (finger leaves trackpad).
|
||||
|
||||
azoteq,timeout-tap-ms:
|
||||
multipleOf: 16
|
||||
minimum: 0
|
||||
maximum: 4080
|
||||
default: 0
|
||||
description:
|
||||
Specifies the length of time (in ms) within which a trackpad touch
|
||||
must be released in order to be interpreted as a tap.
|
||||
|
||||
azoteq,timeout-swipe-ms:
|
||||
multipleOf: 16
|
||||
minimum: 0
|
||||
maximum: 4080
|
||||
default: 0
|
||||
description:
|
||||
Specifies the length of time (in ms) within which an axial gesture
|
||||
must be completed in order to be interpreted as a flick or swipe.
|
||||
|
||||
azoteq,thresh-swipe:
|
||||
$ref: /schemas/types.yaml#/definitions/uint32
|
||||
minimum: 0
|
||||
maximum: 255
|
||||
default: 0
|
||||
description:
|
||||
Specifies the number of points across which an axial gesture must
|
||||
travel in order to be interpreted as a flick or swipe.
|
||||
|
||||
dependencies:
|
||||
azoteq,gesture-swipe: ["linux,keycodes"]
|
||||
azoteq,timeout-tap-ms: ["linux,keycodes"]
|
||||
azoteq,timeout-swipe-ms: ["linux,keycodes"]
|
||||
azoteq,thresh-swipe: ["linux,keycodes"]
|
||||
|
||||
additionalProperties: false
|
||||
|
||||
required:
|
||||
- compatible
|
||||
- reg
|
||||
- interrupts
|
||||
- "#address-cells"
|
||||
- "#size-cells"
|
||||
|
||||
additionalProperties: false
|
||||
|
||||
examples:
|
||||
- |
|
||||
#include <dt-bindings/input/input.h>
|
||||
#include <dt-bindings/interrupt-controller/irq.h>
|
||||
|
||||
i2c {
|
||||
#address-cells = <1>;
|
||||
#size-cells = <0>;
|
||||
|
||||
iqs626a@44 {
|
||||
#address-cells = <1>;
|
||||
#size-cells = <0>;
|
||||
|
||||
compatible = "azoteq,iqs626a";
|
||||
reg = <0x44>;
|
||||
interrupt-parent = <&gpio>;
|
||||
interrupts = <17 IRQ_TYPE_LEVEL_LOW>;
|
||||
|
||||
azoteq,rate-np-ms = <16>;
|
||||
azoteq,rate-lp-ms = <160>;
|
||||
|
||||
azoteq,timeout-pwr-ms = <2560>;
|
||||
azoteq,timeout-lta-ms = <32768>;
|
||||
|
||||
ulp-0 {
|
||||
azoteq,meas-cap-decrease;
|
||||
|
||||
azoteq,ati-base = <75>;
|
||||
azoteq,ati-target = <1024>;
|
||||
|
||||
azoteq,rx-enable = <2>, <3>, <4>,
|
||||
<5>, <6>, <7>;
|
||||
|
||||
event-prox {
|
||||
linux,code = <KEY_POWER>;
|
||||
};
|
||||
};
|
||||
|
||||
trackpad-3x3 {
|
||||
azoteq,filt-str-np-cnt = <1>;
|
||||
azoteq,filt-str-lp-cnt = <1>;
|
||||
|
||||
azoteq,hyst = <4>;
|
||||
azoteq,thresh = <35>, <40>, <40>,
|
||||
<38>, <33>, <38>,
|
||||
<35>, <35>, <35>;
|
||||
|
||||
azoteq,ati-mode = <3>;
|
||||
azoteq,ati-base = <195>, <195>, <195>,
|
||||
<195>, <195>, <195>,
|
||||
<195>, <195>, <195>;
|
||||
azoteq,ati-target = <512>;
|
||||
|
||||
azoteq,proj-bias = <1>;
|
||||
azoteq,sense-freq = <2>;
|
||||
|
||||
linux,keycodes = <KEY_VOLUMEUP>,
|
||||
<KEY_VOLUMEDOWN>,
|
||||
<KEY_NEXTSONG>,
|
||||
<KEY_PREVIOUSSONG>,
|
||||
<KEY_PLAYPAUSE>,
|
||||
<KEY_STOPCD>;
|
||||
|
||||
azoteq,gesture-swipe;
|
||||
azoteq,timeout-swipe-ms = <800>;
|
||||
azoteq,timeout-tap-ms = <400>;
|
||||
azoteq,thresh-swipe = <40>;
|
||||
};
|
||||
|
||||
/*
|
||||
* Preserve the default register settings for
|
||||
* the temperature-tracking channel leveraged
|
||||
* by reset user interface (RUI) 1.
|
||||
*
|
||||
* Scalar properties (e.g. ATI mode) are left
|
||||
* untouched by simply omitting them; boolean
|
||||
* properties must be specified explicitly as
|
||||
* needed.
|
||||
*/
|
||||
generic-2 {
|
||||
azoteq,reseed-disable;
|
||||
azoteq,meas-cap-decrease;
|
||||
azoteq,dual-direction;
|
||||
azoteq,comp-disable;
|
||||
azoteq,static-enable;
|
||||
};
|
||||
|
||||
hall {
|
||||
azoteq,reseed-disable;
|
||||
azoteq,meas-cap-decrease;
|
||||
|
||||
event-touch {
|
||||
linux,code = <SW_LID>;
|
||||
};
|
||||
};
|
||||
};
|
||||
};
|
||||
|
||||
...
|
||||
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