Document the keypad device found on PM8921 and PM8058 PMICs. Cc: <devicetree@xxxxxxxxxxxxxxx> Signed-off-by: Stephen Boyd <sboyd@xxxxxxxxxxxxxx> --- .../bindings/input/qcom,pm8xxx-keypad.txt | 89 ++++++++++++++++++++++ 1 file changed, 89 insertions(+) create mode 100644 Documentation/devicetree/bindings/input/qcom,pm8xxx-keypad.txt diff --git a/Documentation/devicetree/bindings/input/qcom,pm8xxx-keypad.txt b/Documentation/devicetree/bindings/input/qcom,pm8xxx-keypad.txt new file mode 100644 index 000000000000..7d8cb92831d7 --- /dev/null +++ b/Documentation/devicetree/bindings/input/qcom,pm8xxx-keypad.txt @@ -0,0 +1,89 @@ +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. + +- linux,keypad-wakeup: + 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>; + }; -- The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, hosted by The Linux Foundation -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html