Bindings/input/qcom,pm8921-keypad.yaml

   1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/input/qcom,pm8921-keypad.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Qualcomm PM8921 PMIC KeyPad
   8
   9 maintainers:
  10   - Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
  11
  12 allOf:
  13   - $ref: input.yaml#
  14   - $ref: matrix-keymap.yaml#
  15
  16 properties:
  17   compatible:
  18     enum:
  19       - qcom,pm8058-keypad
  20       - qcom,pm8921-keypad
  21
  22   reg:
  23     maxItems: 1
  24
  25   interrupts:
  26     items:
  27       - description: key sense
  28       - description: key stuck
  29
  30   wakeup-source:
  31     type: boolean
  32     description: use any event on keypad as wakeup event
  33
  34   linux,keypad-wakeup:
  35     type: boolean
  36     deprecated: true
  37     description: legacy version of the wakeup-source property
  38
  39   debounce:
  40     description:
  41       Time in microseconds that key must be pressed or
  42       released for state change interrupt to trigger.
  43     $ref: /schemas/types.yaml#/definitions/uint32
  44
  45   scan-delay:
  46     $ref: /schemas/types.yaml#/definitions/uint32
  47     description: time in microseconds to pause between successive scans of the
  48       matrix array
  49
  50   row-hold:
  51     $ref: /schemas/types.yaml#/definitions/uint32
  52     description: time in nanoseconds to pause between scans of each row in the
  53       matrix array.
  54
  55 required:
  56   - compatible
  57   - reg
  58   - interrupts
  59   - linux,keymap
  60
  61 unevaluatedProperties: false
  62
  63 examples:
  64   - |
  65    #include <dt-bindings/input/input.h>
  66    #include <dt-bindings/interrupt-controller/irq.h>
  67    pmic {
  68        #address-cells = <1>;
  69        #size-cells = <0>;
  70
  71        keypad@148 {
  72            compatible = "qcom,pm8921-keypad";
  73            reg = <0x148>;
  74            interrupt-parent = <&pmicintc>;
  75            interrupts = <74 IRQ_TYPE_EDGE_RISING>, <75 IRQ_TYPE_EDGE_RISING>;
  76            linux,keymap = <
  77                MATRIX_KEY(0, 0, KEY_VOLUMEUP)
  78                MATRIX_KEY(0, 1, KEY_VOLUMEDOWN)
  79                MATRIX_KEY(0, 2, KEY_CAMERA_FOCUS)
  80                MATRIX_KEY(0, 3, KEY_CAMERA)
  81            >;
  82            keypad,num-rows = <1>;
  83            keypad,num-columns = <5>;
  84            debounce = <15>;
  85            scan-delay = <32>;
  86            row-hold = <91500>;
  87        };
  88    };
  89 ...