| Qualcomm PM8xxx PMIC Keypad |
| |
| PROPERTIES |
| |
| - compatible: |
| Usage: required |
| Value type: <string> |
| Definition: must be one of: |
| "qcom,pm8058-keypad" |
| "qcom,pm8921-keypad" |
| |
| - reg: |
| Usage: required |
| Value type: <prop-encoded-array> |
| Definition: address of keypad control register |
| |
| - interrupts: |
| Usage: required |
| Value type: <prop-encoded-array> |
| 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: <prop-encoded-array> |
| Definition: the linux keymap. More information can be found in |
| input/matrix-keymap.txt. |
| |
| - linux,keypad-no-autorepeat: |
| Usage: optional |
| Value type: <bool> |
| Definition: don't enable autorepeat feature. |
| |
| - wakeup-source: |
| Usage: optional |
| Value type: <bool> |
| Definition: use any event on keypad as wakeup event. |
| |
| - keypad,num-rows: |
| Usage: required |
| Value type: <u32> |
| Definition: number of rows in the keymap. More information can be found |
| in input/matrix-keymap.txt. |
| |
| - keypad,num-columns: |
| Usage: required |
| Value type: <u32> |
| Definition: number of columns in the keymap. More information can be |
| found in input/matrix-keymap.txt. |
| |
| - debounce: |
| Usage: optional |
| Value type: <u32> |
| Definition: time in microseconds that key must be pressed or release |
| for key sense interrupt to trigger. |
| |
| - scan-delay: |
| Usage: optional |
| Value type: <u32> |
| Definition: time in microseconds to pause between successive scans |
| of the matrix array. |
| |
| - row-hold: |
| Usage: optional |
| Value type: <u32> |
| 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>; |
| }; |