allwinner,sun4i-a10-lradc-keys.yaml

  1# SPDX-License-Identifier: GPL-2.0
  2%YAML 1.2
  3---
  4$id: http://devicetree.org/schemas/input/allwinner,sun4i-a10-lradc-keys.yaml#
  5$schema: http://devicetree.org/meta-schemas/core.yaml#
  6
  7title: Allwinner A10 LRADC
  8
  9maintainers:
 10  - Chen-Yu Tsai <wens@csie.org>
 11  - Maxime Ripard <mripard@kernel.org>
 12
 13properties:
 14  compatible:
 15    oneOf:
 16      - const: allwinner,sun4i-a10-lradc-keys
 17      - const: allwinner,sun8i-a83t-r-lradc
 18      - items:
 19          - enum:
 20              - allwinner,suniv-f1c100s-lradc
 21              - allwinner,sun50i-a64-lradc
 22          - const: allwinner,sun8i-a83t-r-lradc
 23      - const: allwinner,sun50i-r329-lradc
 24      - items:
 25          - enum:
 26              - allwinner,sun50i-h616-lradc
 27              - allwinner,sun20i-d1-lradc
 28          - const: allwinner,sun50i-r329-lradc
 29
 30  reg:
 31    maxItems: 1
 32
 33  clocks:
 34    maxItems: 1
 35
 36  resets:
 37    maxItems: 1
 38
 39  interrupts:
 40    maxItems: 1
 41
 42  vref-supply:
 43    description:
 44      Regulator for the LRADC reference voltage
 45
 46  wakeup-source: true
 47
 48patternProperties:
 49  "^button-[0-9]+$":
 50    type: object
 51    $ref: input.yaml#
 52    properties:
 53      label:
 54        description: Descriptive name of the key
 55
 56      linux,code: true
 57
 58      channel:
 59        $ref: /schemas/types.yaml#/definitions/uint32
 60        enum: [0, 1]
 61        description: ADC Channel this key is attached to
 62
 63      voltage:
 64        $ref: /schemas/types.yaml#/definitions/uint32
 65        description:
 66          Voltage in microvolts at LRADC input when this key is
 67          pressed
 68
 69    required:
 70      - label
 71      - linux,code
 72      - channel
 73      - voltage
 74
 75    additionalProperties: false
 76
 77required:
 78  - compatible
 79  - reg
 80  - interrupts
 81  - vref-supply
 82
 83if:
 84  properties:
 85    compatible:
 86      contains:
 87        enum:
 88          - allwinner,sun50i-r329-lradc
 89
 90then:
 91  required:
 92    - clocks
 93    - resets
 94
 95additionalProperties: false
 96
 97examples:
 98  - |
 99    lradc: lradc@1c22800 {
100        compatible = "allwinner,sun4i-a10-lradc-keys";
101        reg = <0x01c22800 0x100>;
102        interrupts = <31>;
103        vref-supply = <&reg_vcc3v0>;
104
105        button-191 {
106            label = "Volume Up";
107            linux,code = <115>;
108            channel = <0>;
109            voltage = <191274>;
110        };
111
112        button-392 {
113            label = "Volume Down";
114            linux,code = <114>;
115            channel = <0>;
116            voltage = <392644>;
117        };
118    };
119
120...