[PATCH net-next 09/13] dt-bindings: net: airoha: Add airoha,npu phandle property
Conor Dooley
conor at kernel.org
Wed Feb 5 11:10:28 PST 2025
On Wed, Feb 05, 2025 at 07:21:28PM +0100, Lorenzo Bianconi wrote:
> Introduce the airoha,npu property for the npu syscon node available on
> EN7581 SoC. The airoha Network Processor Unit (NPU) is used to offload
> network traffic forwarded between Packet Switch Engine (PSE) ports.
>
> Signed-off-by: Lorenzo Bianconi <lorenzo at kernel.org>
> ---
> Documentation/devicetree/bindings/net/airoha,en7581-eth.yaml | 8 ++++++++
> 1 file changed, 8 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/net/airoha,en7581-eth.yaml b/Documentation/devicetree/bindings/net/airoha,en7581-eth.yaml
> index c578637c5826db4bf470a4d01ac6f3133976ae1a..6388afff64e990a20230b0c4e58534aa61f984da 100644
> --- a/Documentation/devicetree/bindings/net/airoha,en7581-eth.yaml
> +++ b/Documentation/devicetree/bindings/net/airoha,en7581-eth.yaml
> @@ -63,6 +63,12 @@ properties:
> "#size-cells":
> const: 0
>
> + airoha,npu:
> + $ref: /schemas/types.yaml#/definitions/phandle
> + description:
> + Phandle to the syscon node used to configure the NPU module
> + used for traffic offloading.
Why do you need a phandle for this, instead of a lookup by compatible?
Do you have multiple instances of this ethernet controller on the
device, that each need to look up a different npu?
> +
> patternProperties:
> "^ethernet@[1-4]$":
> type: object
> @@ -132,6 +138,8 @@ examples:
> <GIC_SPI 49 IRQ_TYPE_LEVEL_HIGH>,
> <GIC_SPI 64 IRQ_TYPE_LEVEL_HIGH>;
>
> + airoha,npu = <&npu>;
> +
> #address-cells = <1>;
> #size-cells = <0>;
>
>
> --
> 2.48.1
>
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