Documentation/devicetree/bindings/input/qcom,pm8xxx-keypad.txt

   1 Qualcomm PM8xxx PMIC Keypad
   2
   3 PROPERTIES
   4
   5 - compatible:
   6         Usage: required
   7         Value type: <string>
   8         Definition: must be one of:
   9                     "qcom,pm8058-keypad"
  10                     "qcom,pm8921-keypad"
  11
  12 - reg:
  13         Usage: required
  14         Value type: <prop-encoded-array>
  15         Definition: address of keypad control register
  16
  17 - interrupts:
  18         Usage: required
  19         Value type: <prop-encoded-array>
  20         Definition: the first interrupt specifies the key sense interrupt
  21                     and the second interrupt specifies the key stuck interrupt.
  22                     The format of the specifier is defined by the binding
  23                     document describing the node's interrupt parent.
  24
  25 - linux,keymap:
  26         Usage: required
  27         Value type: <prop-encoded-array>
  28         Definition: the linux keymap. More information can be found in
  29                     input/matrix-keymap.txt.
  30
  31 - linux,keypad-no-autorepeat:
  32         Usage: optional
  33         Value type: <bool>
  34         Definition: don't enable autorepeat feature.
  35
  36 - wakeup-source:
  37         Usage: optional
  38         Value type: <bool>
  39         Definition: use any event on keypad as wakeup event.
  40
  41 - keypad,num-rows:
  42         Usage: required
  43         Value type: <u32>
  44         Definition: number of rows in the keymap. More information can be found
  45                     in input/matrix-keymap.txt.
  46
  47 - keypad,num-columns:
  48         Usage: required
  49         Value type: <u32>
  50         Definition: number of columns in the keymap. More information can be
  51                     found in input/matrix-keymap.txt.
  52
  53 - debounce:
  54         Usage: optional
  55         Value type: <u32>
  56         Definition: time in microseconds that key must be pressed or release
  57                     for key sense interrupt to trigger.
  58
  59 - scan-delay:
  60         Usage: optional
  61         Value type: <u32>
  62         Definition: time in microseconds to pause between successive scans
  63                     of the matrix array.
  64
  65 - row-hold:
  66         Usage: optional
  67         Value type: <u32>
  68         Definition: time in nanoseconds to pause between scans of each row in
  69                     the matrix array.
  70
  71 EXAMPLE
  72
  73         keypad@148 {
  74                 compatible = "qcom,pm8921-keypad";
  75                 reg = <0x148>;
  76                 interrupt-parent = <&pmicintc>;
  77                 interrupts = <74 1>, <75 1>;
  78                 linux,keymap = <
  79                         MATRIX_KEY(0, 0, KEY_VOLUMEUP)
  80                         MATRIX_KEY(0, 1, KEY_VOLUMEDOWN)
  81                         MATRIX_KEY(0, 2, KEY_CAMERA_FOCUS)
  82                         MATRIX_KEY(0, 3, KEY_CAMERA)
  83                         >;
  84                 keypad,num-rows = <1>;
  85                 keypad,num-columns = <5>;
  86                 debounce = <15>;
  87                 scan-delay = <32>;
  88                 row-hold = <91500>;
  89         };