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[PATCHv4,2/2] dt: binding documentation for twl4030-keypad

Message ID 1385830416-12900-3-git-send-email-sre@debian.org (mailing list archive)
State New, archived
Headers show

Commit Message

Sebastian Reichel Nov. 30, 2013, 4:53 p.m. UTC 
Add devicetree binding documentation for twl4030-keypad.

Signed-off-by: Sebastian Reichel <sre@debian.org>
---
 .../devicetree/bindings/input/twl4030-keypad.txt   | 27 ++++++++++++++++++++++
 1 file changed, 27 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/input/twl4030-keypad.txt
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Patch

diff --git a/Documentation/devicetree/bindings/input/twl4030-keypad.txt b/Documentation/devicetree/bindings/input/twl4030-keypad.txt
new file mode 100644
index 0000000..e4be2f7
--- /dev/null
+++ 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>;
+	};