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Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , linux-spi@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-amlogic@lists.infradead.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org References: <20260924-t7-node-new-v2-0-319d3c19b4b2@amlogic.com> <20260924-t7-node-new-v2-2-319d3c19b4b2@amlogic.com> <20260924-stinger-stoplight-7c327c3225fa@spud> <4460ec4a-1a28-4481-a33e-3fe72f68bf58@linux.com> Content-Language: en-US In-Reply-To: <4460ec4a-1a28-4481-a33e-3fe72f68bf58@linux.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit On 04/10/2026 15:06, Lucas Tanure wrote: > On 24/09/2026 18:21, Conor Dooley wrote: >> On Thu, Sep 24, 2026 at 05:51:09AM +0000, Xianwei Zhao via B4 Relay >> wrote: >>> From: Xianwei Zhao >>> >>> Add the T7 compatible to the Meson DWMAC binding. >>> >>> The T7 DWMAC controller requires the following compatible combination: >>> >>> amlogic,t7-dwmac >>> amlogic,meson-axg-dwmac >>> snps,dwmac-4.00 >>> >>> Add a conditional schema check to enforce this compatible combination >>> when amlogic,t7-dwmac is used. >>> >>> Signed-off-by: Xianwei Zhao >>> --- >>>   .../devicetree/bindings/net/amlogic,meson-dwmac.yaml    | 17 ++++++ >>> +++++++++++ >>>   1 file changed, 17 insertions(+) >>> >>> diff --git a/Documentation/devicetree/bindings/net/amlogic,meson- >>> dwmac.yaml b/Documentation/devicetree/bindings/net/amlogic,meson- >>> dwmac.yaml >>> index 5c91716d1f21..b529ca5577a9 100644 >>> --- a/Documentation/devicetree/bindings/net/amlogic,meson-dwmac.yaml >>> +++ b/Documentation/devicetree/bindings/net/amlogic,meson-dwmac.yaml >>> @@ -23,11 +23,24 @@ select: >>>             - amlogic,meson-gxbb-dwmac >>>             - amlogic,meson-axg-dwmac >>>             - amlogic,meson-g12a-dwmac >>> +          - amlogic,t7-dwmac >>>     required: >>>       - compatible >>>   allOf: >>>     - $ref: snps,dwmac.yaml# >>> +  - if: >>> +      properties: >>> +        compatible: >>> +          contains: >>> +            const: amlogic,t7-dwmac >>> +    then: >>> +      properties: >>> +        compatible: >>> +          items: >>> +            - const: amlogic,t7-dwmac >>> +            - const: amlogic,meson-axg-dwmac >>> +            - const: snps,dwmac-4.00 >> >> This is not how fallback compatibles are described. >> >> Instead of doing this, which affects all other compatibles in the file >> by allowing dwmac-4.00 for all devices, please do this the normal way. >> dwmac isn't special, it's just this binding that's weird! >> Can whats currently in the binding (before this patch) be largely >> replaced by just doing: >>    compatible: >>      oneOf: >>        - items: >>            - enum: >>                - amlogic,meson8b-dwmac >>                - amlogic,meson-gxbb-dwmac >>                - amlogic,meson-axg-dwmac >>                - amlogic,meson-g12a-dwmac >>            - const: snps,dwmac-3.70a >>            - const: snps,dwmac >>        - items: >>            - enum: >>                - amlogic,meson6-dwmac >>                - amlogic,meson8m2-dwmac >>            - const: snps,dwmac >> >> You'll have to check this yourself against the amlogic devicetrees and >> see if this is correct, but with this you should be able to add your new >> device without doing anything special. > > I have the same patch in my T7 work and checked it against the amlogic > device trees: meson6 and meson8m2 use the two entry form, the rest add > snps,dwmac-3.70a. dt_binding_check and dtbs_check are clean. The example > needs fixing. > > Xianwei, from my VIM4: the MAC reports Synopsys ID 0x51, DWMAC_CORE_5_10 > in common.h, so the core is 5.10a, not 4.00. And the controller reaches > DRAM through a pipeline stage. Nothing claims its gate, sys_ampipe_eth, > so clk_disable_unused switches it off. My node lists it as a fourth > clock. Does the AN400 differ? > > I will send my series today so the code is on the list. Not a race: I > will drop or rebase whatever overlaps once you tell me. > > Thanks, > Lucas My Ethernet patches https://lore.kernel.org/linux-amlogic/20261004144046.391444-1-tanure@linux.com > >> >> pw-bot: changes-requested >> >> Thanks, >> Conor. >> >>>     - if: >>>         properties: >>>           compatible: >>> @@ -38,6 +51,7 @@ allOf: >>>                 - amlogic,meson-gxbb-dwmac >>>                 - amlogic,meson-axg-dwmac >>>                 - amlogic,meson-g12a-dwmac >>> +              - amlogic,t7-dwmac >>>       then: >>>         properties: >>> @@ -93,6 +107,7 @@ allOf: >>>                 - amlogic,meson8m2-dwmac >>>                 - amlogic,meson-gxbb-dwmac >>>                 - amlogic,meson-axg-dwmac >>> +              - amlogic,t7-dwmac >>>       then: >>>         properties: >>>           rx-internal-delay-ps: >>> @@ -139,8 +154,10 @@ properties: >>>             - amlogic,meson-gxbb-dwmac >>>             - amlogic,meson-axg-dwmac >>>             - amlogic,meson-g12a-dwmac >>> +          - amlogic,t7-dwmac >>>       contains: >>>         enum: >>> +        - snps,dwmac-4.00 >>>           - snps,dwmac-3.70a >>>           - snps,dwmac >>> >>> -- >>> 2.52.0 >>> >>>