# Re: \[PATCH 1/4\] dt-bindings: add doc for ibm,hotplug-aperture

- From: Balbir Singh \<bsingharora@gmail.com\>
- Date: 2016-08-11 04:12:47 
- List: linux-devicetree
- Page: https://ratatoskr.run/linux-devicetree/2016/08/4811993
- Thread: https://ratatoskr.run/linux-devicetree/2016/08/4809717/t.md

```text


On 09/08/16 04:27, Reza Arbab wrote:
> Signed-off-by: Reza Arbab <redacted>
> ---
>  .../bindings/powerpc/opal/hotplug-aperture.txt     | 26 ++++++++++++++++++++++
>  1 file changed, 26 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/powerpc/opal/hotplug-aperture.txt
> 
> diff --git a/Documentation/devicetree/bindings/powerpc/opal/hotplug-aperture.txt b/Documentation/devicetree/bindings/powerpc/opal/hotplug-aperture.txt
> new file mode 100644
> index 0000000..b8dffaa
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/powerpc/opal/hotplug-aperture.txt
> @@ -0,0 +1,26 @@
> +Designated hotplug memory
> +-------------------------
> +
> +This binding describes a region of hotplug memory which is not present at boot,
> +allowing its eventual NUMA associativity to be prespecified.
> +
> +Required properties:
> +
> +- compatible
> +	"ibm,hotplug-aperture"
> +
> +- reg
> +	base address and size of the region (standard definition)
> +
> +- ibm,associativity
> +	NUMA associativity (standard definition)
> +
> +Example:
> +
> +A 2 GiB aperture at 0x100000000, to be part of nid 3 when hotplugged:
> +
> +	hotplug-memory@100000000 {
> +		compatible = "ibm,hotplug-aperture";
> +		reg = <0x0 0x100000000 0x0 0x80000000>;
> +		ibm,associativity = <0x4 0x0 0x0 0x0 0x3>;
> +	};
> 

+Stewart and Alistair

Looks good to me!

Acked-by: Balbir Singh <bsingharora@gmail.com>

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```