cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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gpio-keys.yaml (3685B)


      1# SPDX-License-Identifier: GPL-2.0-only
      2%YAML 1.2
      3---
      4$id: http://devicetree.org/schemas/input/gpio-keys.yaml#
      5$schema: http://devicetree.org/meta-schemas/core.yaml#
      6
      7title: Device-Tree bindings for GPIO attached keys
      8
      9maintainers:
     10  - Rob Herring <robh@kernel.org>
     11
     12properties:
     13  compatible:
     14    enum:
     15      - gpio-keys
     16      - gpio-keys-polled
     17
     18patternProperties:
     19  ".*":
     20    if:
     21      type: object
     22    then:
     23      $ref: input.yaml#
     24
     25      properties:
     26        gpios:
     27          maxItems: 1
     28
     29        interrupts:
     30          maxItems: 1
     31
     32        label:
     33          description: Descriptive name of the key.
     34
     35        linux,code:
     36          description: Key / Axis code to emit.
     37          $ref: /schemas/types.yaml#/definitions/uint32
     38
     39        linux,input-type:
     40          description:
     41            Specify event type this button/key generates. If not specified defaults to
     42            <1> == EV_KEY.
     43          $ref: /schemas/types.yaml#/definitions/uint32
     44
     45          default: 1
     46
     47        linux,input-value:
     48          description: |
     49            If linux,input-type is EV_ABS or EV_REL then this
     50            value is sent for events this button generates when pressed.
     51            EV_ABS/EV_REL axis will generate an event with a value of 0
     52            when all buttons with linux,input-type == type and
     53            linux,code == axis are released. This value is interpreted
     54            as a signed 32 bit value, e.g. to make a button generate a
     55            value of -1 use:
     56
     57            linux,input-value = <0xffffffff>; /* -1 */
     58
     59          $ref: /schemas/types.yaml#/definitions/uint32
     60
     61        debounce-interval:
     62          description:
     63            Debouncing interval time in milliseconds. If not specified defaults to 5.
     64          $ref: /schemas/types.yaml#/definitions/uint32
     65
     66          default: 5
     67
     68        wakeup-source:
     69          description: Button can wake-up the system.
     70
     71        wakeup-event-action:
     72          description: |
     73            Specifies whether the key should wake the system when asserted, when
     74            deasserted, or both. This property is only valid for keys that wake up the
     75            system (e.g., when the "wakeup-source" property is also provided).
     76
     77            Supported values are defined in linux-event-codes.h:
     78
     79              EV_ACT_ANY        - both asserted and deasserted
     80              EV_ACT_ASSERTED   - asserted
     81              EV_ACT_DEASSERTED - deasserted
     82          $ref: /schemas/types.yaml#/definitions/uint32
     83          enum: [0, 1, 2]
     84
     85        linux,can-disable:
     86          description:
     87            Indicates that button is connected to dedicated (not shared) interrupt
     88            which can be disabled to suppress events from the button.
     89          type: boolean
     90
     91      required:
     92        - linux,code
     93
     94      anyOf:
     95        - required:
     96            - interrupts
     97        - required:
     98            - gpios
     99
    100      dependencies:
    101        wakeup-event-action: [ wakeup-source ]
    102        linux,input-value: [ gpios ]
    103
    104      unevaluatedProperties: false
    105
    106if:
    107  properties:
    108    compatible:
    109      const: gpio-keys-polled
    110then:
    111  properties:
    112    poll-interval:
    113      description:
    114        Poll interval time in milliseconds
    115      $ref: /schemas/types.yaml#/definitions/uint32
    116
    117  required:
    118    - poll-interval
    119
    120additionalProperties: false
    121
    122examples:
    123  - |
    124    #include <dt-bindings/interrupt-controller/irq.h>
    125
    126    gpio-keys {
    127        compatible = "gpio-keys";
    128        autorepeat;
    129
    130        up {
    131            label = "GPIO Key UP";
    132            linux,code = <103>;
    133            gpios = <&gpio1 0 1>;
    134        };
    135
    136        down {
    137            label = "GPIO Key DOWN";
    138            linux,code = <108>;
    139            interrupts = <1 IRQ_TYPE_EDGE_FALLING>;
    140        };
    141    };
    142
    143...