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authorSebastian Reichel <sre@debian.org>2014-01-04 00:41:03 -0800
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2014-01-04 00:47:37 -0800
commit7abf38d6d13c9e3e3b9e4d7d8d7a68a353279d11 (patch)
tree08fe799cadec0e31bee634624f36a0b47812ecff /Documentation/devicetree/bindings/input
parentf048dd1725c85356517c90f7ecf6bdd9f47d4bf3 (diff)
Input: twl4030-keypad - add device tree support
Add device tree support for twl4030 keypad driver. Tested on Nokia N900. Signed-off-by: Sebastian Reichel <sre@debian.org> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'Documentation/devicetree/bindings/input')
-rw-r--r--Documentation/devicetree/bindings/input/twl4030-keypad.txt27
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diff --git a/Documentation/devicetree/bindings/input/twl4030-keypad.txt b/Documentation/devicetree/bindings/input/twl4030-keypad.txt
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+++ b/Documentation/devicetree/bindings/input/twl4030-keypad.txt
@@ -0,0 +1,27 @@
+* TWL4030's Keypad Controller device tree bindings
+
+TWL4030's Keypad controller is used to interface a SoC with a matrix-type
+keypad device. The keypad controller supports multiple row and column lines.
+A key can be placed at each intersection of a unique row and a unique column.
+The keypad controller can sense a key-press and key-release and report the
+event using a interrupt to the cpu.
+
+This binding is based on the matrix-keymap binding with the following
+changes:
+
+ * keypad,num-rows and keypad,num-columns are required.
+
+Required SoC Specific Properties:
+- compatible: should be one of the following
+ - "ti,twl4030-keypad": For controllers compatible with twl4030 keypad
+ controller.
+- interrupt: should be one of the following
+ - <1>: For controllers compatible with twl4030 keypad controller.
+
+Example:
+ twl_keypad: keypad {
+ compatible = "ti,twl4030-keypad";
+ interrupts = <1>;
+ keypad,num-rows = <8>;
+ keypad,num-columns = <8>;
+ };

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