Messages in this thread | | | Date | Tue, 12 Jul 2016 21:33:16 +0200 | From | Alexandre Belloni <> | Subject | Re: [PATCH v3 1/2] input: adc-keys: add DT binding documentation |
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On 12/07/2016 at 21:29:49 +0200, Alexandre Belloni wrote : > Add documentation for ADC keys > > Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> > --- > Cc: Rob Herring <robh+dt@kernel.org> > Cc: devicetree@vger.kernel.org >
Woops, disregard that series, I'll send v4 shortly.
> .../devicetree/bindings/input/adc-keys.txt | 49 ++++++++++++++++++++++ > 1 file changed, 49 insertions(+) > create mode 100644 Documentation/devicetree/bindings/input/adc-keys.txt > > diff --git a/Documentation/devicetree/bindings/input/adc-keys.txt b/Documentation/devicetree/bindings/input/adc-keys.txt > new file mode 100644 > index 000000000000..0b92ebb4ac21 > --- /dev/null > +++ b/Documentation/devicetree/bindings/input/adc-keys.txt > @@ -0,0 +1,49 @@ > +ADC attached resistor ladder buttons > +------------------------------------ > + > +Required properties: > + - compatible: "adc-keys" > + - io-channels: Phandle to an ADC channel > + - io-channel-names = "buttons"; > + - keyup-threshold-mvolt: Voltage at which all the keys are considered up. > + > +Optional properties: > + - autorepeat: Boolean, Enable auto repeat feature of Linux input > + subsystem. > + > +Each button (key) is represented as a sub-node of "adc-keys": > + > +Required subnode-properties: > + - label: Descriptive name of the key. > + - linux,code: Keycode to emit. > + - press-threshold-mvolt: Voltage adc input when this key is pressed. > + > +Example: > + > +#include <dt-bindings/input/input.h> > + > + adc-keys { > + compatible = "adc-keys"; > + io-channels = <&lradc 0>; > + io-channel-names = "buttons"; > + keyup-threshold-mvolt = <2000>; > + > + button@1500 { > + label = "Volume Up"; > + linux,code = <KEY_VOLUMEUP>; > + press-threshold-mvolt = <1500>; > + }; > + > + button@1000 { > + label = "Volume Down"; > + linux,code = <KEY_VOLUMEDOWN>; > + press-threshold-mvolt = <1000>; > + }; > + > + button@500 { > + label = "Enter"; > + linux,code = <KEY_ENTER>; > + press-threshold-mvolt = <500>; > + }; > + }; > + > -- > 2.8.1 >
-- Alexandre Belloni, Free Electrons Embedded Linux and Kernel engineering http://free-electrons.com
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