dt-bindings: input: iqs7222: Add properties for Azoteq IQS7222D
Extend the common binding to include a new variant of the silicon, which effectively replaces a pair of slider nodes with a trackpad node comprising the same or similar properties. As part of this change, the if/then/else schema have been updated to identify properties that are not supported by the new device. Signed-off-by: Jeff LaBundy <jeff@labundy.com> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/ZKrpOdp+rM8gDekw@nixie71 Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
This commit is contained in:
Jeff LaBundy
Dmitry Torokhov
parent
92b46a7bd1
commit
823b28c5e5
@ -4,14 +4,14 @@
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$id: http://devicetree.org/schemas/input/azoteq,iqs7222.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Azoteq IQS7222A/B/C Capacitive Touch Controller
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title: Azoteq IQS7222A/B/C/D 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 IQS7222A, IQS7222B and IQS7222C are multichannel capacitive touch
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controllers that feature additional sensing capabilities.
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The Azoteq IQS7222A, IQS7222B, IQS7222C and IQS7222D are multichannel
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capacitive touch controllers that feature additional sensing capabilities.
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Link to datasheets: https://www.azoteq.com/
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@ -21,6 +21,7 @@ properties:
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- azoteq,iqs7222a
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- azoteq,iqs7222b
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- azoteq,iqs7222c
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- azoteq,iqs7222d
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reg:
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maxItems: 1
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@ -173,6 +174,152 @@ properties:
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maximum: 3000
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description: Specifies the report rate (in ms) during ultra-low-power mode.
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touchscreen-size-x: true
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touchscreen-size-y: true
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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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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,channel-select:
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$ref: /schemas/types.yaml#/definitions/uint32-array
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minItems: 1
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maxItems: 12
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items:
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minimum: 0
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maximum: 13
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description:
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Specifies the order of the channels that participate in the trackpad.
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Specify 255 to omit a given channel for the purpose of mapping a non-
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rectangular trackpad.
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azoteq,num-rows:
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$ref: /schemas/types.yaml#/definitions/uint32
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minimum: 1
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maximum: 12
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description: Specifies the number of rows that comprise the trackpad.
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azoteq,num-cols:
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$ref: /schemas/types.yaml#/definitions/uint32
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minimum: 1
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maximum: 12
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description: Specifies the number of columns that comprise the trackpad.
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azoteq,top-speed:
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$ref: /schemas/types.yaml#/definitions/uint32
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multipleOf: 4
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minimum: 0
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maximum: 1020
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description:
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Specifies the speed (in coordinates traveled per conversion) after
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which coordinate filtering is no longer applied.
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azoteq,bottom-speed:
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$ref: /schemas/types.yaml#/definitions/uint32
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minimum: 0
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maximum: 255
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description:
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Specifies the speed (in coordinates traveled per conversion) after
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which coordinate filtering is linearly reduced.
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azoteq,use-prox:
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type: boolean
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description:
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Directs the trackpad to respond to the proximity states of the
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selected channels instead of their corresponding touch states.
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Note the trackpad cannot report granular coordinates during a
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state of proximity.
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patternProperties:
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"^azoteq,lower-cal-(x|y)$":
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$ref: /schemas/types.yaml#/definitions/uint32
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minimum: 0
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maximum: 255
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description: Specifies the trackpad's lower starting points.
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"^azoteq,upper-cal-(x|y)$":
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$ref: /schemas/types.yaml#/definitions/uint32
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minimum: 0
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maximum: 255
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description: Specifies the trackpad's upper starting points.
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"^event-(press|tap|(swipe|flick)-(x|y)-(pos|neg))$":
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type: object
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$ref: input.yaml#
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description:
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Represents a press or gesture event reported by the trackpad. Specify
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'linux,code' under the press event to report absolute coordinates.
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properties:
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linux,code: true
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azoteq,gesture-angle-tighten:
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type: boolean
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description:
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Limits the tangent of the gesture angle to 0.5 (axial gestures
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only). If specified in one direction, the effect is applied in
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either direction.
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azoteq,gesture-max-ms:
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multipleOf: 16
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minimum: 0
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maximum: 4080
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description:
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Specifies the length of time (in ms) within which a tap, swipe
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or flick gesture must be completed in order to be acknowledged
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by the device. The number specified for any one swipe or flick
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gesture applies to all other swipe or flick gestures.
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azoteq,gesture-min-ms:
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multipleOf: 16
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minimum: 0
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maximum: 4080
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description:
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Specifies the length of time (in ms) for which a tap gesture must
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be held in order to be acknowledged by the device.
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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 distance (in coordinates) across which a swipe or
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flick gesture must travel in order to be acknowledged by the
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device. The number specified for any one swipe or flick gesture
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applies to all remaining swipe or flick gestures.
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For tap gestures, this property specifies the distance from the
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original point of contact across which the contact is permitted
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to travel before the gesture is rejected by the device.
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azoteq,gpio-select:
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$ref: /schemas/types.yaml#/definitions/uint32-array
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minItems: 1
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maxItems: 3
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items:
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minimum: 0
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maximum: 2
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description: |
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Specifies one or more GPIO mapped to the event as follows:
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0: GPIO0
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1: GPIO3
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2: GPIO4
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Note that although multiple events can be mapped to a single
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GPIO, they must all be of the same type (proximity, touch or
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trackpad gesture).
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additionalProperties: false
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required:
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- azoteq,channel-select
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additionalProperties: false
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patternProperties:
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"^cycle-[0-9]$":
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type: object
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@ -288,6 +435,10 @@ patternProperties:
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Activates the reference channel in response to proximity events
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instead of touch events.
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azoteq,counts-filt-enable:
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type: boolean
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description: Applies counts filtering to the channel.
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azoteq,ati-band:
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$ref: /schemas/types.yaml#/definitions/uint32
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enum: [0, 1, 2, 3]
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@ -432,12 +583,12 @@ patternProperties:
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description: |
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Specifies one or more GPIO mapped to the event as follows:
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0: GPIO0
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1: GPIO3 (IQS7222C only)
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2: GPIO4 (IQS7222C only)
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1: GPIO3
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2: GPIO4
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Note that although multiple events can be mapped to a single
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GPIO, they must all be of the same type (proximity, touch or
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slider gesture).
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slider/trackpad gesture).
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azoteq,thresh:
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$ref: /schemas/types.yaml#/definitions/uint32
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@ -610,8 +761,8 @@ patternProperties:
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description: |
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Specifies one or more GPIO mapped to the event as follows:
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0: GPIO0
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1: GPIO3 (IQS7222C only)
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2: GPIO4 (IQS7222C only)
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1: GPIO3
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2: GPIO4
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Note that although multiple events can be mapped to a single
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GPIO, they must all be of the same type (proximity, touch or
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@ -629,8 +780,8 @@ patternProperties:
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description: |
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Represents a GPIO mapped to one or more events as follows:
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gpio-0: GPIO0
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gpio-1: GPIO3 (IQS7222C only)
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gpio-2: GPIO4 (IQS7222C only)
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gpio-1: GPIO3
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gpio-2: GPIO4
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allOf:
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- $ref: ../pinctrl/pincfg-node.yaml#
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@ -641,11 +792,53 @@ patternProperties:
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additionalProperties: false
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allOf:
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- $ref: touchscreen/touchscreen.yaml#
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- if:
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properties:
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compatible:
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contains:
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const: azoteq,iqs7222b
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enum:
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- azoteq,iqs7222a
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- azoteq,iqs7222b
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- azoteq,iqs7222c
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then:
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properties:
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touchscreen-size-x: false
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touchscreen-size-y: false
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touchscreen-inverted-x: false
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touchscreen-inverted-y: false
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touchscreen-swapped-x-y: false
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trackpad: false
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patternProperties:
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"^channel-([0-9]|1[0-9])$":
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properties:
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azoteq,counts-filt-enable: false
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- if:
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properties:
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compatible:
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contains:
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enum:
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- azoteq,iqs7222b
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- azoteq,iqs7222c
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then:
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patternProperties:
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"^channel-([0-9]|1[0-9])$":
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properties:
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azoteq,ulp-allow: false
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- if:
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properties:
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compatible:
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contains:
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enum:
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- azoteq,iqs7222b
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- azoteq,iqs7222d
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then:
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patternProperties:
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@ -657,13 +850,22 @@ allOf:
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properties:
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azoteq,ref-select: false
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"^slider-[0-1]$": false
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- if:
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properties:
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compatible:
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contains:
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const: azoteq,iqs7222b
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then:
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patternProperties:
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"^channel-([0-9]|1[0-9])$":
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patternProperties:
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"^event-(prox|touch)$":
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properties:
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azoteq,gpio-select: false
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"^slider-[0-1]$": false
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"^gpio-[0-2]$": false
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- if:
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@ -704,10 +906,6 @@ allOf:
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else:
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patternProperties:
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"^channel-([0-9]|1[0-9])$":
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properties:
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azoteq,ulp-allow: false
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"^slider-[0-1]$":
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patternProperties:
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"^event-(press|tap|(swipe|flick)-(pos|neg))$":
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