From 57f0f512b273f60d52568b8c6b77e17f5636edc0 Mon Sep 17 00:00:00 2001 From: André Fabian Silva Delgado Date: Wed, 5 Aug 2015 17:04:01 -0300 Subject: Initial import --- .../devicetree/bindings/input/lpc32xx-key.txt | 31 ++++++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 Documentation/devicetree/bindings/input/lpc32xx-key.txt (limited to 'Documentation/devicetree/bindings/input/lpc32xx-key.txt') diff --git a/Documentation/devicetree/bindings/input/lpc32xx-key.txt b/Documentation/devicetree/bindings/input/lpc32xx-key.txt new file mode 100644 index 000000000..bcf62f856 --- /dev/null +++ b/Documentation/devicetree/bindings/input/lpc32xx-key.txt @@ -0,0 +1,31 @@ +NXP LPC32xx Key Scan Interface + +This binding is based on the matrix-keymap binding with the following +changes: + +Required Properties: +- compatible: Should be "nxp,lpc3220-key" +- reg: Physical base address of the controller and length of memory mapped + region. +- interrupts: The interrupt number to the cpu. +- nxp,debounce-delay-ms: Debounce delay in ms +- nxp,scan-delay-ms: Repeated scan period in ms +- linux,keymap: the key-code to be reported when the key is pressed + and released, see also + Documentation/devicetree/bindings/input/matrix-keymap.txt + +Note: keypad,num-rows and keypad,num-columns are required, and must be equal +since LPC32xx only supports square matrices + +Example: + + key@40050000 { + compatible = "nxp,lpc3220-key"; + reg = <0x40050000 0x1000>; + interrupts = <54 0>; + keypad,num-rows = <1>; + keypad,num-columns = <1>; + nxp,debounce-delay-ms = <3>; + nxp,scan-delay-ms = <34>; + linux,keymap = <0x00000002>; + }; -- cgit v1.2.3-54-g00ecf