Re: [PATCH v5 3/4] dt-bindings: net: altr,socfpga-stmmac: Add altr,socfpga-stmmac-agilex5-tsn compatible

[Krzysztof Kozlowski <krzk@kernel.org>]

On 17/08/2026 05:02, muhammad.nazim.amirul.nazle.asmade@altera.com wrote:
> From: Nazim Amirul <muhammad.nazim.amirul.nazle.asmade@altera.com>
> 
> The Agilex5 SoCDK TSN Config2 gmac1 path includes an FPGA soft-IP
> GMII-to-RGMII converter between the DWXGMAC and the PHY. The converter
> provides the RGMII TX/RX delays and presents GMII toward the MAC, unlike
> a plain altr,socfpga-stmmac-agilex5 port with no such converter.
> 
> Add altr,socfpga-stmmac-agilex5-tsn for that integration. It is not
> listed as compatible with altr,socfpga-stmmac-agilex5 because the
> converter presents GMII to the MAC and supplies the RGMII delays,
> unlike a plain Agilex5 GMAC port.
> 
> Signed-off-by: Nazim Amirul <muhammad.nazim.amirul.nazle.asmade@altera.com>
> ---
> v5: Drop altr,socfpga-stmmac-agilex5 fallback and rewrite commit message
>     to explain hardware incompatibility, per Krzysztof Kozlowski.
> v4: No changes from v2.
> 
>  .../devicetree/bindings/net/altr,socfpga-stmmac.yaml          | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/net/altr,socfpga-stmmac.yaml b/Documentation/devicetree/bindings/net/altr,socfpga-stmmac.yaml
> index 63084f762373..7db6a7102994 100644
> --- a/Documentation/devicetree/bindings/net/altr,socfpga-stmmac.yaml
> +++ b/Documentation/devicetree/bindings/net/altr,socfpga-stmmac.yaml
> @@ -24,6 +24,7 @@ select:
>            - altr,socfpga-stmmac
>            - altr,socfpga-stmmac-a10-s10
>            - altr,socfpga-stmmac-agilex5
> +          - altr,socfpga-stmmac-agilex5-tsn
>  
>    required:
>      - compatible
> @@ -46,6 +47,9 @@ properties:
>        - items:
>            - const: altr,socfpga-stmmac-agilex5
>            - const: snps,dwxgmac-2.10
> +      - items:
> +          - const: altr,socfpga-stmmac-agilex5-tsn

So this should be part of enum of earlier list of
altr,socfpga-stmmac-agilex5.


Best regards,
Krzysztof