summaryrefslogtreecommitdiffstats
path: root/Documentation/devicetree/bindings/input/omap-keypad.txt
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--Documentation/devicetree/bindings/input/omap-keypad.txt28
1 files changed, 28 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/input/omap-keypad.txt b/Documentation/devicetree/bindings/input/omap-keypad.txt
new file mode 100644
index 000000000..34ed1c60f
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/omap-keypad.txt
@@ -0,0 +1,28 @@
+* 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.
+
+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,omap4-keypad": For controllers compatible with omap4 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;
+ };