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| author | Alexander Stein <alexander.stein@systec-electronic.com> | 2014-11-25 11:53:45 -0800 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2014-12-03 15:28:39 -0800 |
| commit | f2d347ff70be453e861304448cb2f32ff94d40e9 (patch) | |
| tree | 206349299d3784d12d9c6eae11f299bb94a9a2ae /Documentation/devicetree | |
| parent | e147af492e6c80855550908c86d6d11a501cbfaf (diff) | |
| download | talos-op-linux-f2d347ff70be453e861304448cb2f32ff94d40e9.tar.gz talos-op-linux-f2d347ff70be453e861304448cb2f32ff94d40e9.zip | |
Input: gpio_keys - add device tree support for interrupt only keys
This features already exists for board config setups. Add support for
device tree based systems.
Signed-off-by: Alexander Stein <alexander.stein@systec-electronic.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Diffstat (limited to 'Documentation/devicetree')
| -rw-r--r-- | Documentation/devicetree/bindings/input/gpio-keys.txt | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/input/gpio-keys.txt b/Documentation/devicetree/bindings/input/gpio-keys.txt index 5c2c02140a62..a4a38fcf2ed6 100644 --- a/Documentation/devicetree/bindings/input/gpio-keys.txt +++ b/Documentation/devicetree/bindings/input/gpio-keys.txt @@ -10,10 +10,13 @@ Optional properties: Each button (key) is represented as a sub-node of "gpio-keys": Subnode properties: - - gpios: OF device-tree gpio specification. - label: Descriptive name of the key. - linux,code: Keycode to emit. +Required mutual exclusive subnode-properties: + - gpios: OF device-tree gpio specification. + - interrupts: the interrupt line for that input + Optional subnode-properties: - linux,input-type: Specify event type this button/key generates. If not specified defaults to <1> == EV_KEY. @@ -33,4 +36,9 @@ Example nodes: linux,code = <103>; gpios = <&gpio1 0 1>; }; + button@22 { + label = "GPIO Key DOWN"; + linux,code = <108>; + interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>; + }; ... |
