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| author | Alexander Shiyan <shc_work@mail.ru> | 2014-03-28 20:37:14 +0400 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2014-03-31 00:24:55 +0400 |
| commit | e70f18e1c7868bebad16b21b4821b2adb8c1abf8 (patch) | |
| tree | 9d02b52fb41a729a4188f1fb9db904fbe083fa9c /Documentation | |
| parent | fd335ab04b3f1b3309dfbfea71a1a79a7bacc4ad (diff) | |
| download | linux-e70f18e1c7868bebad16b21b4821b2adb8c1abf8.tar.xz | |
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 <shc_work@mail.ru>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/input/clps711x-keypad.txt | 27 |
1 files changed, 27 insertions, 0 deletions
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) + >; + }; |