From 44dc42d254bf7f0be0c8c4f0361db6452f5ce967 Mon Sep 17 00:00:00 2001 From: Jeff LaBundy Date: Fri, 8 Apr 2022 19:15:08 -0700 Subject: dt-bindings: input: Add bindings for Azoteq IQS7222A/B/C This patch adds bindings for the Azoteq IQS7222A/B/C family of capacitive touch controllers. Signed-off-by: Jeff LaBundy Reviewed-by: Rob Herring Link: https://lore.kernel.org/r/20220403221659.865997-2-jeff@labundy.com Signed-off-by: Dmitry Torokhov --- .../devicetree/bindings/input/azoteq,iqs7222.yaml | 960 +++++++++++++++++++++ 1 file changed, 960 insertions(+) create mode 100644 Documentation/devicetree/bindings/input/azoteq,iqs7222.yaml (limited to 'Documentation/devicetree') diff --git a/Documentation/devicetree/bindings/input/azoteq,iqs7222.yaml b/Documentation/devicetree/bindings/input/azoteq,iqs7222.yaml new file mode 100644 index 000000000000..a3a1e5a65306 --- /dev/null +++ b/Documentation/devicetree/bindings/input/azoteq,iqs7222.yaml @@ -0,0 +1,960 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/input/azoteq,iqs7222.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Azoteq IQS7222A/B/C Capacitive Touch Controller + +maintainers: + - Jeff LaBundy + +description: | + The Azoteq IQS7222A, IQS7222B and IQS7222C are multichannel capacitive touch + controllers that feature additional sensing capabilities. + + Link to datasheets: https://www.azoteq.com/ + +properties: + compatible: + enum: + - azoteq,iqs7222a + - azoteq,iqs7222b + - azoteq,iqs7222c + + reg: + maxItems: 1 + + irq-gpios: + maxItems: 1 + description: + Specifies the GPIO connected to the device's active-low RDY output. + + reset-gpios: + maxItems: 1 + description: + Specifies the GPIO connected to the device's active-low MCLR input. The + device is temporarily held in hardware reset prior to initialization if + this property is present. + + azoteq,rf-filt-enable: + type: boolean + description: Enables the device's internal RF filter. + + azoteq,max-counts: + $ref: /schemas/types.yaml#/definitions/uint32 + enum: [0, 1, 2, 3] + description: | + Specifies the maximum number of conversion periods (counts) that can be + reported as follows: + 0: 1023 + 1: 2047 + 2: 4095 + 3: 16384 + + azoteq,auto-mode: + $ref: /schemas/types.yaml#/definitions/uint32 + enum: [0, 1, 2, 3] + description: | + Specifies the number of conversions to occur before an interrupt is + generated as follows: + 0: 4 + 1: 8 + 2: 16 + 3: 32 + + azoteq,ati-frac-div-fine: + $ref: /schemas/types.yaml#/definitions/uint32 + minimum: 0 + maximum: 31 + description: Specifies the preloaded ATI fine fractional divider. + + azoteq,ati-frac-div-coarse: + $ref: /schemas/types.yaml#/definitions/uint32 + minimum: 0 + maximum: 31 + description: Specifies the preloaded ATI coarse fractional divider. + + azoteq,ati-comp-select: + $ref: /schemas/types.yaml#/definitions/uint32 + minimum: 0 + maximum: 1023 + description: Specifies the preloaded ATI compensation selection. + + azoteq,lta-beta-lp: + $ref: /schemas/types.yaml#/definitions/uint32 + minimum: 0 + maximum: 15 + description: + Specifies the long-term average filter damping factor to be applied during + low-power mode. + + azoteq,lta-beta-np: + $ref: /schemas/types.yaml#/definitions/uint32 + minimum: 0 + maximum: 15 + description: + Specifies the long-term average filter damping factor to be applied during + normal-power mode. + + azoteq,counts-beta-lp: + $ref: /schemas/types.yaml#/definitions/uint32 + minimum: 0 + maximum: 15 + description: + Specifies the counts filter damping factor to be applied during low-power + mode. + + azoteq,counts-beta-np: + $ref: /schemas/types.yaml#/definitions/uint32 + minimum: 0 + maximum: 15 + description: + Specifies the counts filter damping factor to be applied during normal- + power mode. + + azoteq,lta-fast-beta-lp: + $ref: /schemas/types.yaml#/definitions/uint32 + minimum: 0 + maximum: 15 + description: + Specifies the long-term average filter fast damping factor to be applied + during low-power mode. + + azoteq,lta-fast-beta-np: + $ref: /schemas/types.yaml#/definitions/uint32 + minimum: 0 + maximum: 15 + description: + Specifies the long-term average filter fast damping factor to be applied + during normal-power mode. + + azoteq,timeout-ati-ms: + multipleOf: 500 + minimum: 0 + maximum: 32767500 + description: + Specifies the delay (in ms) before ATI is retried following an ATI error. + + azoteq,rate-ati-ms: + minimum: 0 + maximum: 65535 + description: Specifies the rate (in ms) at which ATI status is evaluated. + + azoteq,timeout-np-ms: + minimum: 0 + maximum: 65535 + description: + Specifies the length of time (in ms) to wait for an event before moving + from normal-power mode to low-power mode. + + azoteq,rate-np-ms: + minimum: 0 + maximum: 3000 + description: Specifies the report rate (in ms) during normal-power mode. + + azoteq,timeout-lp-ms: + minimum: 0 + maximum: 65535 + description: + Specifies the length of time (in ms) to wait for an event before moving + from low-power mode to ultra-low-power mode. + + azoteq,rate-lp-ms: + minimum: 0 + maximum: 3000 + description: Specifies the report rate (in ms) during low-power mode. + + azoteq,timeout-ulp-ms: + minimum: 0 + maximum: 65535 + description: + Specifies the rate (in ms) at which channels not regularly sampled during + ultra-low-power mode are updated. + + azoteq,rate-ulp-ms: + minimum: 0 + maximum: 3000 + description: Specifies the report rate (in ms) during ultra-low-power mode. + +patternProperties: + "^cycle-[0-9]$": + type: object + description: Represents a conversion cycle serving two sensing channels. + + properties: + azoteq,conv-period: + $ref: /schemas/types.yaml#/definitions/uint32 + minimum: 0 + maximum: 255 + description: Specifies the cycle's conversion period. + + azoteq,conv-frac: + $ref: /schemas/types.yaml#/definitions/uint32 + minimum: 0 + maximum: 255 + description: Specifies the cycle's conversion frequency fraction. + + azoteq,tx-enable: + $ref: /schemas/types.yaml#/definitions/uint32-array + minItems: 1 + maxItems: 9 + items: + minimum: 0 + maximum: 8 + description: Specifies the CTx pin(s) associated with the cycle. + + azoteq,rx-float-inactive: + type: boolean + description: Floats any inactive CRx pins instead of grounding them. + + azoteq,dead-time-enable: + type: boolean + description: + Increases the denominator of the conversion frequency formula by one. + + azoteq,tx-freq-fosc: + type: boolean + description: + Fixes the conversion frequency to that of the device's core clock. + + azoteq,vbias-enable: + type: boolean + description: Enables the bias voltage for use during inductive sensing. + + azoteq,sense-mode: + $ref: /schemas/types.yaml#/definitions/uint32 + enum: [0, 1, 2, 3] + description: | + Specifies the cycle's sensing mode as follows: + 0: None + 1: Self capacitive + 2: Mutual capacitive + 3: Inductive + + Note that in the case of IQS7222A, cycles 5 and 6 are restricted to + Hall-effect sensing. + + azoteq,iref-enable: + type: boolean + description: + Enables the current reference for use during various sensing modes. + + azoteq,iref-level: + $ref: /schemas/types.yaml#/definitions/uint32 + minimum: 0 + maximum: 15 + description: Specifies the cycle's current reference level. + + azoteq,iref-trim: + $ref: /schemas/types.yaml#/definitions/uint32 + minimum: 0 + maximum: 15 + description: Specifies the cycle's current reference trim. + + dependencies: + azoteq,iref-level: ["azoteq,iref-enable"] + azoteq,iref-trim: ["azoteq,iref-enable"] + + additionalProperties: false + + "^channel-([0-9]|1[0-9])$": + type: object + description: + Represents a single sensing channel. A channel is active if defined and + inactive otherwise. + + Note that in the case of IQS7222A, channels 10 and 11 are restricted to + Hall-effect sensing with events reported on channel 10 only. + + properties: + azoteq,ulp-allow: + type: boolean + description: + Permits the device to enter ultra-low-power mode while the channel + lies in a state of touch or proximity. + + azoteq,ref-select: + $ref: /schemas/types.yaml#/definitions/uint32 + minimum: 0 + maximum: 9 + description: Specifies a separate reference channel to be followed. + + azoteq,ref-weight: + $ref: /schemas/types.yaml#/definitions/uint32 + minimum: 0 + maximum: 65535 + description: Specifies the relative weight of the reference channel. + + azoteq,use-prox: + type: boolean + description: + Activates the reference channel in response to proximity events + instead of touch events. + + azoteq,ati-band: + $ref: /schemas/types.yaml#/definitions/uint32 + enum: [0, 1, 2, 3] + description: | + Specifies the channel's ATI band as a fraction of its ATI target as + follows: + 0: 1/16 + 1: 1/8 + 2: 1/4 + 3: 1/2 + + azoteq,global-halt: + type: boolean + description: + Specifies that the channel's long-term average is to freeze if any + other participating channel lies in a proximity or touch state. + + azoteq,invert-enable: + type: boolean + description: + Inverts the polarity of the states reported for proximity and touch + events relative to their respective thresholds. + + azoteq,dual-direction: + type: boolean + description: + Specifies that the channel's long-term average is to freeze in the + presence of either increasing or decreasing counts, thereby permit- + ting events to be reported in either direction. + + azoteq,rx-enable: + $ref: /schemas/types.yaml#/definitions/uint32-array + minItems: 1 + maxItems: 4 + items: + minimum: 0 + maximum: 7 + description: Specifies the CRx pin(s) associated with the channel. + + azoteq,samp-cap-double: + type: boolean + description: Doubles the sampling capacitance from 40 pF to 80 pF. + + azoteq,vref-half: + type: boolean + description: Halves the discharge threshold from 1.0 V to 0.5 V. + + azoteq,proj-bias: + $ref: /schemas/types.yaml#/definitions/uint32 + enum: [0, 1, 2, 3] + description: | + Specifies the bias current applied during mutual (projected) + capacitive sensing as follows: + 0: 2 uA + 1: 5 uA + 2: 7 uA + 3: 10 uA + + azoteq,ati-target: + $ref: /schemas/types.yaml#/definitions/uint32 + multipleOf: 8 + minimum: 0 + maximum: 2040 + description: Specifies the channel's ATI target. + + azoteq,ati-base: + $ref: /schemas/types.yaml#/definitions/uint32 + multipleOf: 16 + minimum: 0 + maximum: 496 + description: Specifies the channel's ATI base. + + azoteq,ati-mode: + $ref: /schemas/types.yaml#/definitions/uint32 + enum: [0, 1, 2, 3, 4, 5] + description: | + Specifies the channel's ATI mode as follows: + 0: Disabled + 1: Compensation + 2: Compensation divider + 3: Fine fractional divider + 4: Coarse fractional divider + 5: Full + + azoteq,ati-frac-div-fine: + $ref: /schemas/types.yaml#/definitions/uint32 + minimum: 0 + maximum: 31 + description: Specifies the channel's ATI fine fractional divider. + + azoteq,ati-frac-mult-coarse: + $ref: /schemas/types.yaml#/definitions/uint32 + minimum: 0 + maximum: 15 + description: Specifies the channel's ATI coarse fractional multiplier. + + azoteq,ati-frac-div-coarse: + $ref: /schemas/types.yaml#/definitions/uint32 + minimum: 0 + maximum: 31 + description: Specifies the channel's ATI coarse fractional divider. + + azoteq,ati-comp-div: + $ref: /schemas/types.yaml#/definitions/uint32 + minimum: 0 + maximum: 31 + description: Specifies the channel's ATI compensation divider. + + azoteq,ati-comp-select: + $ref: /schemas/types.yaml#/definitions/uint32 + minimum: 0 + maximum: 1023 + description: Specifies the channel's ATI compensation selection. + + azoteq,debounce-enter: + $ref: /schemas/types.yaml#/definitions/uint32 + minimum: 0 + maximum: 15 + description: Specifies the channel's debounce entrance factor. + + azoteq,debounce-exit: + $ref: /schemas/types.yaml#/definitions/uint32 + minimum: 0 + maximum: 15 + description: Specifies the channel's debounce exit factor. + + patternProperties: + "^event-(prox|touch)$": + type: object + description: + Represents a proximity or touch event reported by the channel. + + properties: + 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 (IQS7222C only) + 2: GPIO4 (IQS7222C only) + + 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). + + azoteq,thresh: + $ref: /schemas/types.yaml#/definitions/uint32 + description: + Specifies the threshold for the event. Valid entries range from + 0-127 and 0-255 for proximity and touch events, respectively. + + azoteq,hyst: + $ref: /schemas/types.yaml#/definitions/uint32 + minimum: 0 + maximum: 255 + description: + Specifies the hysteresis for the event (touch events only). + + azoteq,timeout-press-ms: + multipleOf: 500 + minimum: 0 + maximum: 127500 + description: + Specifies the length of time (in ms) to wait before automatically + releasing a press event. Specify zero to allow the press state to + persist indefinitely. + + The IQS7222B does not feature channel-specific timeouts; the time- + out specified for any one channel applies to all channels. + + linux,code: + $ref: /schemas/types.yaml#/definitions/uint32 + description: + Numeric key or switch code associated with the event. Specify + KEY_RESERVED (0) to opt out of event reporting. + + linux,input-type: + $ref: /schemas/types.yaml#/definitions/uint32 + enum: [1, 5] + default: 1 + description: + Specifies whether the event is to be interpreted as a key (1) + or a switch (5). + + required: + - linux,code + + additionalProperties: false + + dependencies: + azoteq,ref-weight: ["azoteq,ref-select"] + azoteq,use-prox: ["azoteq,ref-select"] + + additionalProperties: false + + "^slider-[0-1]$": + type: object + description: Represents a slider comprising three or four channels. + + properties: + azoteq,channel-select: + $ref: /schemas/types.yaml#/definitions/uint32-array + minItems: 3 + maxItems: 4 + items: + minimum: 0 + maximum: 9 + description: + Specifies the order of the channels that participate in the slider. + + azoteq,slider-size: + $ref: /schemas/types.yaml#/definitions/uint32 + minimum: 0 + maximum: 65535 + description: + Specifies the slider's one-dimensional resolution, equal to the + maximum coordinate plus one. + + azoteq,lower-cal: + $ref: /schemas/types.yaml#/definitions/uint32 + minimum: 0 + maximum: 255 + description: Specifies the slider's lower starting point. + + azoteq,upper-cal: + $ref: /schemas/types.yaml#/definitions/uint32 + minimum: 0 + maximum: 255 + description: Specifies the slider's upper starting point. + + azoteq,top-speed: + $ref: /schemas/types.yaml#/definitions/uint32 + minimum: 0 + maximum: 65535 + description: + Specifies the speed of movement after which coordinate filtering is + no longer applied. + + azoteq,bottom-speed: + $ref: /schemas/types.yaml#/definitions/uint32 + multipleOf: 4 + minimum: 0 + maximum: 1020 + description: + Specifies the speed of movement after which coordinate filtering is + linearly reduced. + + azoteq,bottom-beta: + $ref: /schemas/types.yaml#/definitions/uint32 + minimum: 0 + maximum: 7 + description: + Specifies the coordinate filter damping factor to be applied + while the speed of movement is below that which is specified + by azoteq,bottom-speed. + + azoteq,static-beta: + type: boolean + description: + Applies the coordinate filter damping factor specified by + azoteq,bottom-beta regardless of the speed of movement. + + azoteq,use-prox: + type: boolean + description: + Directs the slider to respond to the proximity states of the selected + channels instead of their corresponding touch states. Note the slider + cannot report granular coordinates during a state of proximity. + + linux,axis: + $ref: /schemas/types.yaml#/definitions/uint32 + description: + Specifies the absolute axis to which coordinates are mapped. Specify + ABS_WHEEL to operate the slider as a wheel (IQS7222C only). + + patternProperties: + "^event-(press|tap|(swipe|flick)-(pos|neg))$": + type: object + description: + Represents a press or gesture (IQS7222A only) event reported by + the slider. + + properties: + linux,code: + $ref: /schemas/types.yaml#/definitions/uint32 + description: Numeric key code associated with the event. + + azoteq,gesture-max-ms: + multipleOf: 4 + minimum: 0 + maximum: 1020 + 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 remaining swipe or flick gestures. + + azoteq,gesture-min-ms: + multipleOf: 4 + minimum: 0 + maximum: 124 + 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 + multipleOf: 16 + minimum: 0 + maximum: 4080 + description: + Specifies the distance across which a swipe or flick gesture must + travel in order to be acknowledged by the device. The number spec- + ified for any one swipe or flick gesture applies to all remaining + swipe or flick gestures. + + azoteq,gpio-select: + $ref: /schemas/types.yaml#/definitions/uint32-array + minItems: 1 + maxItems: 1 + items: + minimum: 0 + maximum: 0 + description: | + Specifies an individual GPIO mapped to a tap, swipe or flick + gesture as follows: + 0: GPIO0 + 1: GPIO3 (reserved) + 2: GPIO4 (reserved) + + Note that although multiple events can be mapped to a single + GPIO, they must all be of the same type (proximity, touch or + slider gesture). + + required: + - linux,code + + additionalProperties: false + + required: + - azoteq,channel-select + + additionalProperties: false + + "^gpio-[0-2]$": + type: object + 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) + + allOf: + - $ref: ../pinctrl/pincfg-node.yaml# + + properties: + drive-open-drain: true + + additionalProperties: false + +allOf: + - if: + properties: + compatible: + contains: + const: azoteq,iqs7222b + + then: + patternProperties: + "^cycle-[0-9]$": + properties: + azoteq,iref-enable: false + + "^channel-([0-9]|1[0-9])$": + properties: + azoteq,ref-select: false + + patternProperties: + "^event-(prox|touch)$": + properties: + azoteq,gpio-select: false + + "^slider-[0-1]$": false + + "^gpio-[0-2]$": false + + - if: + properties: + compatible: + contains: + const: azoteq,iqs7222a + + then: + patternProperties: + "^channel-([0-9]|1[0-9])$": + patternProperties: + "^event-(prox|touch)$": + properties: + azoteq,gpio-select: + maxItems: 1 + items: + maximum: 0 + + "^slider-[0-1]$": + properties: + azoteq,slider-size: + multipleOf: 16 + maximum: 4080 + + azoteq,top-speed: + multipleOf: 4 + maximum: 1020 + + else: + patternProperties: + "^channel-([0-9]|1[0-9])$": + properties: + azoteq,ulp-allow: false + + "^slider-[0-1]$": + patternProperties: + "^event-(press|tap|(swipe|flick)-(pos|neg))$": + properties: + azoteq,gesture-max-ms: false + + azoteq,gesture-min-ms: false + + azoteq,gesture-dist: false + + azoteq,gpio-select: false + +required: + - compatible + - reg + - irq-gpios + +additionalProperties: false + +examples: + - | + #include + #include + + i2c { + #address-cells = <1>; + #size-cells = <0>; + + iqs7222a@44 { + compatible = "azoteq,iqs7222a"; + reg = <0x44>; + irq-gpios = <&gpio 4 GPIO_ACTIVE_LOW>; + azoteq,lta-beta-lp = <7>; + azoteq,lta-beta-np = <8>; + azoteq,counts-beta-lp = <2>; + azoteq,counts-beta-np = <3>; + azoteq,lta-fast-beta-lp = <3>; + azoteq,lta-fast-beta-np = <4>; + + cycle-0 { + azoteq,conv-period = <5>; + azoteq,conv-frac = <127>; + azoteq,tx-enable = <1>, <2>, <4>, <5>; + azoteq,dead-time-enable; + azoteq,sense-mode = <2>; + }; + + cycle-1 { + azoteq,conv-period = <5>; + azoteq,conv-frac = <127>; + azoteq,tx-enable = <5>; + azoteq,dead-time-enable; + azoteq,sense-mode = <2>; + }; + + cycle-2 { + azoteq,conv-period = <5>; + azoteq,conv-frac = <127>; + azoteq,tx-enable = <4>; + azoteq,dead-time-enable; + azoteq,sense-mode = <2>; + }; + + cycle-3 { + azoteq,conv-period = <5>; + azoteq,conv-frac = <127>; + azoteq,tx-enable = <2>; + azoteq,dead-time-enable; + azoteq,sense-mode = <2>; + }; + + cycle-4 { + azoteq,conv-period = <5>; + azoteq,conv-frac = <127>; + azoteq,tx-enable = <1>; + azoteq,dead-time-enable; + azoteq,sense-mode = <2>; + }; + + cycle-5 { + azoteq,conv-period = <2>; + azoteq,conv-frac = <0>; + }; + + cycle-6 { + azoteq,conv-period = <2>; + azoteq,conv-frac = <0>; + }; + + channel-0 { + azoteq,ulp-allow; + azoteq,global-halt; + azoteq,invert-enable; + azoteq,rx-enable = <3>; + azoteq,ati-target = <800>; + azoteq,ati-base = <208>; + azoteq,ati-mode = <5>; + }; + + channel-1 { + azoteq,global-halt; + azoteq,invert-enable; + azoteq,rx-enable = <3>; + azoteq,ati-target = <496>; + azoteq,ati-base = <208>; + azoteq,ati-mode = <5>; + }; + + channel-2 { + azoteq,global-halt; + azoteq,invert-enable; + azoteq,rx-enable = <3>; + azoteq,ati-target = <496>; + azoteq,ati-base = <208>; + azoteq,ati-mode = <5>; + }; + + channel-3 { + azoteq,global-halt; + azoteq,invert-enable; + azoteq,rx-enable = <3>; + azoteq,ati-target = <496>; + azoteq,ati-base = <208>; + azoteq,ati-mode = <5>; + }; + + channel-4 { + azoteq,global-halt; + azoteq,invert-enable; + azoteq,rx-enable = <3>; + azoteq,ati-target = <496>; + azoteq,ati-base = <208>; + azoteq,ati-mode = <5>; + }; + + channel-5 { + azoteq,ulp-allow; + azoteq,global-halt; + azoteq,invert-enable; + azoteq,rx-enable = <6>; + azoteq,ati-target = <800>; + azoteq,ati-base = <144>; + azoteq,ati-mode = <5>; + }; + + channel-6 { + azoteq,global-halt; + azoteq,invert-enable; + azoteq,rx-enable = <6>; + azoteq,ati-target = <496>; + azoteq,ati-base = <160>; + azoteq,ati-mode = <5>; + + event-touch { + linux,code = ; + }; + }; + + channel-7 { + azoteq,global-halt; + azoteq,invert-enable; + azoteq,rx-enable = <6>; + azoteq,ati-target = <496>; + azoteq,ati-base = <160>; + azoteq,ati-mode = <5>; + + event-touch { + linux,code = ; + }; + }; + + channel-8 { + azoteq,global-halt; + azoteq,invert-enable; + azoteq,rx-enable = <6>; + azoteq,ati-target = <496>; + azoteq,ati-base = <160>; + azoteq,ati-mode = <5>; + + event-touch { + linux,code = ; + }; + }; + + channel-9 { + azoteq,global-halt; + azoteq,invert-enable; + azoteq,rx-enable = <6>; + azoteq,ati-target = <496>; + azoteq,ati-base = <160>; + azoteq,ati-mode = <5>; + + event-touch { + linux,code = ; + }; + }; + + channel-10 { + azoteq,ulp-allow; + azoteq,ati-target = <496>; + azoteq,ati-base = <112>; + + event-touch { + linux,code = ; + linux,input-type = ; + }; + }; + + channel-11 { + azoteq,ati-target = <496>; + azoteq,ati-base = <112>; + }; + + slider-0 { + azoteq,channel-select = <1>, <2>, <3>, <4>; + azoteq,slider-size = <4080>; + azoteq,upper-cal = <50>; + azoteq,lower-cal = <30>; + azoteq,top-speed = <200>; + azoteq,bottom-speed = <1>; + azoteq,bottom-beta = <3>; + + event-tap { + linux,code = ; + azoteq,gesture-max-ms = <600>; + azoteq,gesture-min-ms = <24>; + }; + + event-flick-pos { + linux,code = ; + azoteq,gesture-max-ms = <600>; + azoteq,gesture-dist = <816>; + }; + + event-flick-neg { + linux,code = ; + }; + }; + }; + }; + +... -- cgit v1.2.3 From 61f19f67490bf3f459d2e67f2a70588a9c4c8cda Mon Sep 17 00:00:00 2001 From: Samuel Holland Date: Sun, 24 Apr 2022 20:38:44 -0700 Subject: dt-bindings: input: sun4i-lradc-keys: Add R329 and D1 compatibles The R329 and D1 SoCs each contain an LRADC with a programming interface compatible to earlier LRADCs. However, the LRADC now has its own clock gate and reset line, instead of being always active. To support this, add clock/reset properties to the binding, and require them for the variant in the new SoCs. Acked-by: Maxime Ripard Reviewed-by: Rob Herring Signed-off-by: Samuel Holland Link: https://lore.kernel.org/r/20220414002349.24332-1-samuel@sholland.org Signed-off-by: Dmitry Torokhov --- .../input/allwinner,sun4i-a10-lradc-keys.yaml | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) (limited to 'Documentation/devicetree') diff --git a/Documentation/devicetree/bindings/input/allwinner,sun4i-a10-lradc-keys.yaml b/Documentation/devicetree/bindings/input/allwinner,sun4i-a10-lradc-keys.yaml index d74f2002409e..3399fc288afb 100644 --- a/Documentation/devicetree/bindings/input/allwinner,sun4i-a10-lradc-keys.yaml +++ b/Documentation/devicetree/bindings/input/allwinner,sun4i-a10-lradc-keys.yaml @@ -18,10 +18,20 @@ properties: - items: - const: allwinner,sun50i-a64-lradc - const: allwinner,sun8i-a83t-r-lradc + - const: allwinner,sun50i-r329-lradc + - items: + - const: allwinner,sun20i-d1-lradc + - const: allwinner,sun50i-r329-lradc reg: maxItems: 1 + clocks: + maxItems: 1 + + resets: + maxItems: 1 + interrupts: maxItems: 1 @@ -68,6 +78,18 @@ required: - interrupts - vref-supply +if: + properties: + compatible: + contains: + enum: + - allwinner,sun50i-r329-lradc + +then: + required: + - clocks + - resets + additionalProperties: false examples: -- cgit v1.2.3 From 52dc6d3bea3b8509c2ec1f2ae413d0dc646e0b8a Mon Sep 17 00:00:00 2001 From: Stephen Boyd Date: Mon, 16 May 2022 11:55:31 -0700 Subject: dt-bindings: google,cros-ec-keyb: Introduce switches only compatible If the ChromeOS board is a detachable, this cros-ec-keyb device won't have a matrix keyboard but it may have some button switches, e.g. volume buttons and power buttons. The driver still registers a keyboard though and that leads to userspace confusion around where the keyboard is. We tried to work around this by only registering the keyboard device when rows/columns properties were specified for the device, but that led to another problem where removing the rows/columns properties breaks the existing binding. Technically before that commit the rows/columns properties were required, otherwise the driver would fail to probe. Removing the properties from devicetrees makes the driver fail to probe unless the corresponding driver patch is present. Furthermore, this makes requiring matrix keyboard properties for devices that really have a keyboard impossible because the compatible drives the schema and now the properties are optional. Add a more specific compatible for this type of device that indicates to the OS that there are only switches and no matrix keyboard present. Reviewed-by: Krzysztof Kozlowski Reviewed-by: Douglas Anderson Signed-off-by: Stephen Boyd Link: https://lore.kernel.org/r/20220516183452.942008-2-swboyd@chromium.org Signed-off-by: Dmitry Torokhov --- .../bindings/input/google,cros-ec-keyb.yaml | 39 ++++++++++++++++++---- 1 file changed, 33 insertions(+), 6 deletions(-) (limited to 'Documentation/devicetree') diff --git a/Documentation/devicetree/bindings/input/google,cros-ec-keyb.yaml b/Documentation/devicetree/bindings/input/google,cros-ec-keyb.yaml index e8f137abb03c..e11cbf508723 100644 --- a/Documentation/devicetree/bindings/input/google,cros-ec-keyb.yaml +++ b/Documentation/devicetree/bindings/input/google,cros-ec-keyb.yaml @@ -15,14 +15,18 @@ description: | Google's ChromeOS EC Keyboard is a simple matrix keyboard implemented on a separate EC (Embedded Controller) device. It provides a message for reading key scans from the EC. These are then converted - into keycodes for processing by the kernel. - -allOf: - - $ref: "/schemas/input/matrix-keymap.yaml#" + into keycodes for processing by the kernel. This device also supports + switches/buttons like power and volume buttons. properties: compatible: - const: google,cros-ec-keyb + anyOf: + - description: ChromeOS EC with only buttons/switches + - items: + - const: google,cros-ec-keyb-switches + - description: ChromeOS EC with keyboard and possibly buttons/switches + - items: + - const: google,cros-ec-keyb google,needs-ghost-filter: description: @@ -41,15 +45,32 @@ properties: where the lower 16 bits are reserved. This property is specified only when the keyboard has a custom design for the top row keys. +dependencies: + function-row-phsymap: [ 'linux,keymap' ] + google,needs-ghost-filter: [ 'linux,keymap' ] + required: - compatible +if: + properties: + compatible: + contains: + const: google,cros-ec-keyb +then: + allOf: + - $ref: "/schemas/input/matrix-keymap.yaml#" + required: + - keypad,num-rows + - keypad,num-columns + - linux,keymap + unevaluatedProperties: false examples: - | #include - cros-ec-keyb { + keyboard-controller { compatible = "google,cros-ec-keyb"; keypad,num-rows = <8>; keypad,num-columns = <13>; @@ -113,3 +134,9 @@ examples: /* UP LEFT */ 0x070b0067 0x070c0069>; }; + - | + /* No matrix keyboard, just buttons/switches */ + keyboard-controller { + compatible = "google,cros-ec-keyb-switches"; + }; +... -- cgit v1.2.3 From d95bca4fbde0a29a3d987c39fd17e414f1ed5ec6 Mon Sep 17 00:00:00 2001 From: Stephen Boyd Date: Wed, 18 May 2022 15:00:08 -0700 Subject: dt-bindings: google,cros-ec-keyb: Fixup bad compatible match This uses anyOf which is wrong. Use oneOf and move the items under the description. Also drop allOf for $ref. Reported-by: Douglas Anderson Signed-off-by: Stephen Boyd Link: https://lore.kernel.org/r/CAE-0n50KE9bkqZvCOLtCGiq3g1jYhK7zpVcVFBzinaguNhNaPw@mail.gmail.com Signed-off-by: Dmitry Torokhov --- .../devicetree/bindings/input/google,cros-ec-keyb.yaml | 11 ++++------- 1 file changed, 4 insertions(+), 7 deletions(-) (limited to 'Documentation/devicetree') diff --git a/Documentation/devicetree/bindings/input/google,cros-ec-keyb.yaml b/Documentation/devicetree/bindings/input/google,cros-ec-keyb.yaml index e11cbf508723..c31a02149f37 100644 --- a/Documentation/devicetree/bindings/input/google,cros-ec-keyb.yaml +++ b/Documentation/devicetree/bindings/input/google,cros-ec-keyb.yaml @@ -20,13 +20,11 @@ description: | properties: compatible: - anyOf: + oneOf: - description: ChromeOS EC with only buttons/switches - - items: - - const: google,cros-ec-keyb-switches + const: google,cros-ec-keyb-switches - description: ChromeOS EC with keyboard and possibly buttons/switches - - items: - - const: google,cros-ec-keyb + const: google,cros-ec-keyb google,needs-ghost-filter: description: @@ -58,8 +56,7 @@ if: contains: const: google,cros-ec-keyb then: - allOf: - - $ref: "/schemas/input/matrix-keymap.yaml#" + $ref: "/schemas/input/matrix-keymap.yaml#" required: - keypad,num-rows - keypad,num-columns -- cgit v1.2.3