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SubjectRe: [PATCH RFC 4/6] net: rfkill: gpio: add device tree support
Date
On Friday 17 January 2014, Chen-Yu Tsai wrote:
> diff --git a/Documentation/devicetree/bindings/rfkill/rfkill-gpio.txt b/Documentation/devicetree/bindings/rfkill/rfkill-gpio.txt
> new file mode 100644
> index 0000000..8a07ea4
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/rfkill/rfkill-gpio.txt
> @@ -0,0 +1,26 @@
> +GPIO controlled RFKILL devices
> +
> +Required properties:
> +- compatible : Must be "rfkill-gpio".
> +- rfkill-name : Name of RFKILL device
> +- rfkill-type : Type of RFKILL device: 1 for WiFi, 2 for BlueTooth
> +- NAME_shutdown-gpios : GPIO phandle to shutdown control
> + (phandle must be the second)
> +- NAME_reset-gpios : GPIO phandle to reset control
> +
> +NAME must match the rfkill-name property. NAME_shutdown-gpios or
> +NAME_reset-gpios, or both, must be defined.
> +

I don't understand this part. Why do you include the name in the
gpios property, rather than just hardcoding the property strings
to "shutdown-gpios" and "reset-gpios"?

The description of hte "rfkill-name" property seems to suggest
that you can only have one logical RFKILL device per device node,
so he names would not be ambiguous.

Arnd


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