On Mon, Aug 21, 2017 at 8:31 AM, Danilo Krummrich
<danilokrummrich@xxxxxxxxxxxxx> wrote:
> The PS/2 gpio device binding defines the gpio pins (data and clock)
> as well as the interrupt which should be used to drive the ps/2 bus.
> It is expected to get an interrupt on the falling edge of the clock
> line.
>
> Also it can be configured whether the host should support writing to
> the device.
>
> Signed-off-by: Danilo Krummrich <danilokrummrich@xxxxxxxxxxxxx>
> ---
> .../devicetree/bindings/serio/ps2-gpio.txt | 22 ++++++++++++++++++++++
> 1 file changed, 22 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/serio/ps2-gpio.txt
>
> diff --git a/Documentation/devicetree/bindings/serio/ps2-gpio.txt b/Documentation/devicetree/bindings/serio/ps2-gpio.txt
> new file mode 100644
> index 000000000000..83e05ea05883
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/serio/ps2-gpio.txt
> @@ -0,0 +1,22 @@
> +Device-Tree binding for ps/2 gpio device
> +
> +Required properties:
> + - compatible = "ps2-gpio"
> + - gpios: data and clock gpio
Doesn't match the example.
> + - interrupts: Should trigger on the falling edge of the clock line.
> +
> +Optional properties:
> + - write-enable: Indicates whether write function is provided
> + to serio device. Possibly providing the write fn will not work, because
> + of the tough timing requirements.
> +
> +Example nodes:
> +
> +ps2@0 {
> + compatible = "ps2-gpio";
> + interrupt-parent = <&gpio>;
> + interrupts = <23 IRQ_TYPE_EDGE_FALLING>;
> + data-gpios = <&gpio 24 GPIO_ACTIVE_HIGH>;
> + clk-gpios = <&gpio 23 GPIO_ACTIVE_HIGH>;
> + write-enable;
> +};
> --
> 2.14.1
>
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