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authorSourav Poddar <sourav.poddar@ti.com>2012-07-13 03:10:47 -0400
committerDmitry Torokhov <dmitry.torokhov@gmail.com>2012-07-18 02:16:07 -0400
commit13987435cc28eab6e562e878e71b521e7ef5c860 (patch)
tree92283f54561ec3c7499a736efbbb97499594f447 /Documentation
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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1* TI's Keypad Controller device tree bindings
2
3TI's Keypad controller is used to interface a SoC with a matrix-type
4keypad device. The keypad controller supports multiple row and column lines.
5A key can be placed at each intersection of a unique row and a unique column.
6The keypad controller can sense a key-press and key-release and report the
7event using a interrupt to the cpu.
8
9Required SoC Specific Properties:
10- compatible: should be one of the following
11 - "ti,omap4-keypad": For controllers compatible with omap4 keypad
12 controller.
13
14Required Board Specific Properties, in addition to those specified by
15the shared matrix-keyboard bindings:
16- keypad,num-rows: Number of row lines connected to the keypad
17 controller.
18
19- keypad,num-columns: Number of column lines connected to the
20 keypad controller.
21
22Optional Properties specific to linux:
23- linux,keypad-no-autorepeat: do no enable autorepeat feature.
24
25Example:
26 keypad@4ae1c000{
27 compatible = "ti,omap4-keypad";
28 keypad,num-rows = <2>;
29 keypad,num-columns = <8>;
30 linux,keypad-no-autorepeat;
31 };