On Sun, Apr 19, 2015 at 3:42 PM, Alban Bedel <albeu@xxxxxxx> wrote:
> These bindings support the GPIO controllers found on the Qualcomm
> Atheros AR7xxx/AR9XXX SoC.
>
> Signed-off-by: Alban Bedel <albeu@xxxxxxx>
> ---
> v2: * Add the ngpios property to have fewer fallbacks and simpler code
> ---
> .../devicetree/bindings/gpio/gpio-ath79.txt | 38 ++++++++++++++++++++++
> 1 file changed, 38 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/gpio/gpio-ath79.txt
>
> diff --git a/Documentation/devicetree/bindings/gpio/gpio-ath79.txt b/Documentation/devicetree/bindings/gpio/gpio-ath79.txt
> new file mode 100644
> index 0000000..e027864
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/gpio/gpio-ath79.txt
> @@ -0,0 +1,38 @@
> +Binding for Qualcomm Atheros AR7xxx/AR9xxx GPIO controller
> +
> +Required properties:
> +- compatible: has to be "qca,<soctype>-gpio" and one of the following
> + fallback:
maybe plural?
> + - "qca,ar7100-gpio"
> + - "qca,ar9340-gpio"
> +- reg: Base address and size of the controllers memory area
> +- gpio-controller : Marks the device node as a GPIO controller.
> +- #gpio-cells : Should be two. The first cell is the pin number and the
> + second cell is used to specify optional parameters.
> +- ngpios: Should be set to the number of GPIOs available on the SoC.
> +
> +Optional properties:
> +- interrupt-parent: phandle of the parent interrupt controller.
> +- interrupts: Interrupt specifier for the controllers interrupt.
> +- interrupt-controller : Identifies the node as an interrupt controller
> +- #interrupt-cells : Specifies the number of cells needed to encode interrupt
> + source, should be 2
> +
> +Please refer to interrupts.txt in this directory for details of the common
> +Interrupt Controllers bindings used by client devices.
> +
> +Example:
> +
> + gpio@18040000 {
> + compatible = "qca,ar9132-gpio", "qca,ar9130-gpio";
You have neither "qca,ar7100-gpio" nor "qca,ar9340-gpio", so by your
own documentation this would be invalid.
Jonas
