Kernel-4.18.0-80.el8_qcom,pm8xxx-keypa

Qualcomm PM8xxx PMIC Keypad

PROPERTIES

• compatible:
  Usage: required
  Value type:
  Definition: must be one of:

        "qcom,pm8058-keypad"
        "qcom,pm8921-keypad"
  

• reg:
  Usage: required
  Value type:
  Definition: address of keypad control register

• interrupts:
  Usage: required
  Value type:
  Definition: the first interrupt specifies the key sense interrupt

        and the second interrupt specifies the key stuck interrupt.
        The format of the specifier is defined by the binding
        document describing the node's interrupt parent.
  

• linux,keymap:
  Usage: required
  Value type:
  Definition: the linux keymap. More information can be found in

        input/matrix-keymap.txt.
  

• linux,keypad-no-autorepeat:
  Usage: optional
  Value type:
  Definition: don’t enable autorepeat feature.

• wakeup-source:
  Usage: optional
  Value type:
  Definition: use any event on keypad as wakeup event.

        (Legacy property supported: "linux,keypad-wakeup")
  

• keypad,num-rows:
  Usage: required
  Value type:
  Definition: number of rows in the keymap. More information can be found

        in input/matrix-keymap.txt.
  

• keypad,num-columns:
  Usage: required
  Value type:
  Definition: number of columns in the keymap. More information can be

        found in input/matrix-keymap.txt.
  

• debounce:
  Usage: optional
  Value type:
  Definition: time in microseconds that key must be pressed or release

        for key sense interrupt to trigger.
  

• scan-delay:
  Usage: optional
  Value type:
  Definition: time in microseconds to pause between successive scans

        of the matrix array.
  

• row-hold:
  Usage: optional
  Value type:
  Definition: time in nanoseconds to pause between scans of each row in

        the matrix array.
  

EXAMPLE

keypad@148 {
    compatible = "qcom,pm8921-keypad";
    reg = <0x148>;
    interrupt-parent = <&pmicintc>;
    interrupts = <74 1>, <75 1>;
    linux,keymap = <
        MATRIX_KEY(0, 0, KEY_VOLUMEUP)
        MATRIX_KEY(0, 1, KEY_VOLUMEDOWN)
        MATRIX_KEY(0, 2, KEY_CAMERA_FOCUS)
        MATRIX_KEY(0, 3, KEY_CAMERA)
        >;
    keypad,num-rows = <1>;
    keypad,num-columns = <5>;
    debounce = <15>;
    scan-delay = <32>;
    row-hold = <91500>;
};