@@ -4,14 +4,14 @@
$id: http://devicetree.org/schemas/input/azoteq,iqs7222.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
-title: Azoteq IQS7222A/B/C Capacitive Touch Controller
+title: Azoteq IQS7222A/B/C/D Capacitive Touch Controller
maintainers:
- Jeff LaBundy <jeff@labundy.com>
description: |
- The Azoteq IQS7222A, IQS7222B and IQS7222C are multichannel capacitive touch
- controllers that feature additional sensing capabilities.
+ The Azoteq IQS7222A, IQS7222B, IQS7222C and IQS7222D are multichannel
+ capacitive touch controllers that feature additional sensing capabilities.
Link to datasheets: https://www.azoteq.com/
@@ -21,6 +21,7 @@ properties:
- azoteq,iqs7222a
- azoteq,iqs7222b
- azoteq,iqs7222c
+ - azoteq,iqs7222d
reg:
maxItems: 1
@@ -173,6 +174,152 @@ properties:
maximum: 3000
description: Specifies the report rate (in ms) during ultra-low-power mode.
+ touchscreen-size-x: true
+ touchscreen-size-y: true
+ touchscreen-inverted-x: true
+ touchscreen-inverted-y: true
+ touchscreen-swapped-x-y: true
+
+ trackpad:
+ type: object
+ description: Represents all channels associated with the trackpad.
+
+ properties:
+ azoteq,channel-select:
+ $ref: /schemas/types.yaml#/definitions/uint32-array
+ minItems: 1
+ maxItems: 12
+ items:
+ minimum: 0
+ maximum: 13
+ description:
+ Specifies the order of the channels that participate in the trackpad.
+ Specify 255 to omit a given channel for the purpose of mapping a non-
+ rectangular trackpad.
+
+ azoteq,num-rows:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 1
+ maximum: 12
+ description: Specifies the number of rows that comprise the trackpad.
+
+ azoteq,num-cols:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 1
+ maximum: 12
+ description: Specifies the number of columns that comprise the trackpad.
+
+ azoteq,top-speed:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ multipleOf: 4
+ minimum: 0
+ maximum: 1020
+ description:
+ Specifies the speed (in coordinates traveled per conversion) after
+ which coordinate filtering is no longer applied.
+
+ azoteq,bottom-speed:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 255
+ description:
+ Specifies the speed (in coordinates traveled per conversion) after
+ which coordinate filtering is linearly reduced.
+
+ azoteq,use-prox:
+ type: boolean
+ description:
+ Directs the trackpad to respond to the proximity states of the
+ selected channels instead of their corresponding touch states.
+ Note the trackpad cannot report granular coordinates during a
+ state of proximity.
+
+ patternProperties:
+ "^azoteq,lower-cal-(x|y)$":
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 255
+ description: Specifies the trackpad's lower starting points.
+
+ "^azoteq,upper-cal-(x|y)$":
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 255
+ description: Specifies the trackpad's upper starting points.
+
+ "^event-(press|tap|(swipe|flick)-(x|y)-(pos|neg))$":
+ type: object
+ $ref: input.yaml#
+ description:
+ Represents a press or gesture event reported by the trackpad. Specify
+ 'linux,code' under the press event to report absolute coordinates.
+
+ properties:
+ linux,code: true
+
+ azoteq,gesture-angle-tighten:
+ type: boolean
+ description:
+ Limits the tangent of the gesture angle to 0.5 (axial gestures
+ only). If specified in one direction, the effect is applied in
+ either direction.
+
+ azoteq,gesture-max-ms:
+ multipleOf: 16
+ minimum: 0
+ maximum: 4080
+ description:
+ Specifies the length of time (in ms) within which a tap, swipe
+ or flick gesture must be completed in order to be acknowledged
+ by the device. The number specified for any one swipe or flick
+ gesture applies to all other swipe or flick gestures.
+
+ azoteq,gesture-min-ms:
+ multipleOf: 16
+ minimum: 0
+ maximum: 4080
+ description:
+ Specifies the length of time (in ms) for which a tap gesture must
+ be held in order to be acknowledged by the device.
+
+ azoteq,gesture-dist:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ minimum: 0
+ maximum: 65535
+ description:
+ Specifies the distance (in coordinates) across which a swipe or
+ flick gesture must travel in order to be acknowledged by the
+ device. The number specified for any one swipe or flick gesture
+ applies to all remaining swipe or flick gestures.
+
+ For tap gestures, this property specifies the distance from the
+ original point of contact across which the contact is permitted
+ to travel before the gesture is rejected by the device.
+
+ azoteq,gpio-select:
+ $ref: /schemas/types.yaml#/definitions/uint32-array
+ minItems: 1
+ maxItems: 3
+ items:
+ minimum: 0
+ maximum: 2
+ description: |
+ Specifies one or more GPIO mapped to the event as follows:
+ 0: GPIO0
+ 1: GPIO3
+ 2: GPIO4
+
+ Note that although multiple events can be mapped to a single
+ GPIO, they must all be of the same type (proximity, touch or
+ trackpad gesture).
+
+ additionalProperties: false
+
+ required:
+ - azoteq,channel-select
+
+ additionalProperties: false
+
patternProperties:
"^cycle-[0-9]$":
type: object
@@ -288,6 +435,10 @@ patternProperties:
Activates the reference channel in response to proximity events
instead of touch events.
+ azoteq,counts-filt-enable:
+ type: boolean
+ description: Applies counts filtering to the channel.
+
azoteq,ati-band:
$ref: /schemas/types.yaml#/definitions/uint32
enum: [0, 1, 2, 3]
@@ -432,12 +583,12 @@ patternProperties:
description: |
Specifies one or more GPIO mapped to the event as follows:
0: GPIO0
- 1: GPIO3 (IQS7222C only)
- 2: GPIO4 (IQS7222C only)
+ 1: GPIO3
+ 2: GPIO4
Note that although multiple events can be mapped to a single
GPIO, they must all be of the same type (proximity, touch or
- slider gesture).
+ slider/trackpad gesture).
azoteq,thresh:
$ref: /schemas/types.yaml#/definitions/uint32
@@ -610,8 +761,8 @@ patternProperties:
description: |
Specifies one or more GPIO mapped to the event as follows:
0: GPIO0
- 1: GPIO3 (IQS7222C only)
- 2: GPIO4 (IQS7222C only)
+ 1: GPIO3
+ 2: GPIO4
Note that although multiple events can be mapped to a single
GPIO, they must all be of the same type (proximity, touch or
@@ -629,8 +780,8 @@ patternProperties:
description: |
Represents a GPIO mapped to one or more events as follows:
gpio-0: GPIO0
- gpio-1: GPIO3 (IQS7222C only)
- gpio-2: GPIO4 (IQS7222C only)
+ gpio-1: GPIO3
+ gpio-2: GPIO4
allOf:
- $ref: ../pinctrl/pincfg-node.yaml#
@@ -641,11 +792,53 @@ patternProperties:
additionalProperties: false
allOf:
+ - $ref: touchscreen/touchscreen.yaml#
+
- if:
properties:
compatible:
contains:
- const: azoteq,iqs7222b
+ enum:
+ - azoteq,iqs7222a
+ - azoteq,iqs7222b
+ - azoteq,iqs7222c
+
+ then:
+ properties:
+ touchscreen-size-x: false
+ touchscreen-size-y: false
+ touchscreen-inverted-x: false
+ touchscreen-inverted-y: false
+ touchscreen-swapped-x-y: false
+
+ trackpad: false
+
+ patternProperties:
+ "^channel-([0-9]|1[0-9])$":
+ properties:
+ azoteq,counts-filt-enable: false
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - azoteq,iqs7222b
+ - azoteq,iqs7222c
+
+ then:
+ patternProperties:
+ "^channel-([0-9]|1[0-9])$":
+ properties:
+ azoteq,ulp-allow: false
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ enum:
+ - azoteq,iqs7222b
+ - azoteq,iqs7222d
then:
patternProperties:
@@ -657,13 +850,22 @@ allOf:
properties:
azoteq,ref-select: false
+ "^slider-[0-1]$": false
+
+ - if:
+ properties:
+ compatible:
+ contains:
+ const: azoteq,iqs7222b
+
+ then:
+ patternProperties:
+ "^channel-([0-9]|1[0-9])$":
patternProperties:
"^event-(prox|touch)$":
properties:
azoteq,gpio-select: false
- "^slider-[0-1]$": false
-
"^gpio-[0-2]$": false
- if:
@@ -704,10 +906,6 @@ allOf:
else:
patternProperties:
- "^channel-([0-9]|1[0-9])$":
- properties:
- azoteq,ulp-allow: false
-
"^slider-[0-1]$":
patternProperties:
"^event-(press|tap|(swipe|flick)-(pos|neg))$":
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> --- .../bindings/input/azoteq,iqs7222.yaml | 232 ++++++++++++++++-- 1 file changed, 215 insertions(+), 17 deletions(-)