On Fri, Feb 06, 2015 at 09:32:01AM +0000, Hans Holmberg wrote:
> This document describes the Device Tree bindings for the gpio-joy
> driver.
>
> Signed-off-by: Hans Holmberg <hans.holmb...@intel.com>
> ---
> .../devicetree/bindings/input/gpio-joy.txt | 29
> ++++++++++++++++++++++
> 1 file changed, 29 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/input/gpio-joy.txt
>
> diff --git a/Documentation/devicetree/bindings/input/gpio-joy.txt
> b/Documentation/devicetree/bindings/input/gpio-joy.txt
> new file mode 100644
> index 0000000..ef8ad09
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/input/gpio-joy.txt
> @@ -0,0 +1,29 @@
> +Device-Tree bindings for input/joystick/gpio_joy.c joystick driver
> +
> +This driver can be used for connecting i.e. C64 and Atari joysticks.
The binding should be for a class of hardware, not for a driver. Please
describe the class of hardware the binding represents, and remove
references to the Linux driver.
> +Required properties:
> + - compatible = "gpio-joy";
That does not strike me as a very informative compatible string. At the
least, s/joy/joystick/.
> +
> + - left-gpio : gpio connected to the "left" joystick signal
> + - right-gpio : gpio connected to the "right" joystick signal
> + - up-gpio : gpio connected to the "up" joystick signal
> + - down-gpio : gpio connected to the "down" joystick signal
> + - button-gpio : gpio connected to the "button" joystick signal
Only one button?
Thanks,
Mark.
> + See OF device-tree gpio specification.
> +
> +Optional properties:
> + - debounce-interval-ms: debounce interval in milliseconds for connected
> pins
> + Default is 10 milliseconds
> +
> +Example node:
> +
> +joystick {
> + compatible = "gpio-joy";
> + left-gpio = <&gpio 24 GPIO_ACTIVE_LOW>;
> + right-gpio = <&gpio 10 GPIO_ACTIVE_LOW>;
> + up-gpio = <&gpio 3 GPIO_ACTIVE_LOW>;
> + down-gpio = <&gpio 27 GPIO_ACTIVE_LOW>;
> + button-gpio = <&gpio 2 GPIO_ACTIVE_LOW>;
> +};
> +
> --
> 1.9.1
>
> --
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