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authorSourav Poddar <sourav.poddar@ti.com>2012-07-13 00:10:47 -0700
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2012-07-17 23:16:07 -0700
commit13987435cc28eab6e562e878e71b521e7ef5c860 (patch)
tree92283f54561ec3c7499a736efbbb97499594f447 /Documentation/devicetree/bindings/input
parent8a90c034ae0d4282e2aeb9cf8311dc90c855d815 (diff)
Input: omap4-keypad - add device tree support
Add device tree support for omap4 keypad driver and update the Documentation with omap4 keypad device tree binding information. Tested on omap4430 sdp. Signed-off-by: Sourav Poddar <sourav.poddar@ti.com> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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diff --git a/Documentation/devicetree/bindings/input/omap-keypad.txt b/Documentation/devicetree/bindings/input/omap-keypad.txt
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+* TI's Keypad Controller device tree bindings
+
+TI'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.
+
+Required SoC Specific Properties:
+- compatible: should be one of the following
+ - "ti,omap4-keypad": For controllers compatible with omap4 keypad
+ controller.
+
+Required Board Specific Properties, in addition to those specified by
+the shared matrix-keyboard bindings:
+- keypad,num-rows: Number of row lines connected to the keypad
+ controller.
+
+- keypad,num-columns: Number of column lines connected to the
+ keypad controller.
+
+Optional Properties specific to linux:
+- linux,keypad-no-autorepeat: do no enable autorepeat feature.
+
+Example:
+ keypad@4ae1c000{
+ compatible = "ti,omap4-keypad";
+ keypad,num-rows = <2>;
+ keypad,num-columns = <8>;
+ linux,keypad-no-autorepeat;
+ };

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