0001 * TWL4030's Keypad Controller device tree bindings
0002
0003 TWL4030's Keypad controller is used to interface a SoC with a matrix-type
0004 keypad device. The keypad controller supports multiple row and column lines.
0005 A key can be placed at each intersection of a unique row and a unique column.
0006 The keypad controller can sense a key-press and key-release and report the
0007 event using a interrupt to the cpu.
0008
0009 This binding is based on the matrix-keymap binding with the following
0010 changes:
0011
0012 * keypad,num-rows and keypad,num-columns are required.
0013
0014 Required SoC Specific Properties:
0015 - compatible: should be one of the following
0016 - "ti,twl4030-keypad": For controllers compatible with twl4030 keypad
0017 controller.
0018 - interrupt: should be one of the following
0019 - <1>: For controllers compatible with twl4030 keypad controller.
0020
0021 Example:
0022 twl_keypad: keypad {
0023 compatible = "ti,twl4030-keypad";
0024 interrupts = <1>;
0025 keypad,num-rows = <8>;
0026 keypad,num-columns = <8>;
0027 };
