From e70f18e1c7868bebad16b21b4821b2adb8c1abf8 Mon Sep 17 00:00:00 2001 From: Alexander Shiyan Date: Fri, 28 Mar 2014 09:37:14 -0700 Subject: Input: add new driver for ARM CLPS711X keypad This patch adds a new driver for keypad for Cirrus Logic CLPS711X CPUs. Target CPU contain keyboard interface which can scan 8 column lines, so we can read row GPIOs to read status and determine asserted state. Signed-off-by: Alexander Shiyan Signed-off-by: Dmitry Torokhov --- .../devicetree/bindings/input/clps711x-keypad.txt | 27 ++++++++++++++++++++++ 1 file changed, 27 insertions(+) create mode 100644 Documentation/devicetree/bindings/input/clps711x-keypad.txt (limited to 'Documentation/devicetree/bindings/input/clps711x-keypad.txt') diff --git a/Documentation/devicetree/bindings/input/clps711x-keypad.txt b/Documentation/devicetree/bindings/input/clps711x-keypad.txt new file mode 100644 index 000000000000..e68d2bbc6c07 --- /dev/null +++ b/Documentation/devicetree/bindings/input/clps711x-keypad.txt @@ -0,0 +1,27 @@ +* Cirrus Logic CLPS711X matrix keypad device tree bindings + +Required Properties: +- compatible: Shall contain "cirrus,clps711x-keypad". +- row-gpios: List of GPIOs used as row lines. +- poll-interval: Poll interval time in milliseconds. +- linux,keymap: The definition can be found at + bindings/input/matrix-keymap.txt. + +Optional Properties: +- autorepeat: Enable autorepeat feature. + +Example: + keypad { + compatible = "cirrus,ep7312-keypad", "cirrus,clps711x-keypad"; + autorepeat; + poll-interval = <120>; + row-gpios = <&porta 0 0>, + <&porta 1 0>; + + linux,keymap = < + MATRIX_KEY(0, 0, KEY_UP) + MATRIX_KEY(0, 1, KEY_DOWN) + MATRIX_KEY(1, 0, KEY_LEFT) + MATRIX_KEY(1, 1, KEY_RIGHT) + >; + }; -- cgit v1.2.3