Re: [PATCH v1 3/7] dt-bindings: net: Add bindings for StarFive dwmac

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On 01/12/2022 17:45, Conor Dooley wrote:
> Hey Yanhong,
> 
> On Thu, Dec 01, 2022 at 07:36:29AM -0600, Rob Herring wrote:
>>
>> On Thu, 01 Dec 2022 17:02:38 +0800, Yanhong Wang wrote:
>>> Add bindings for the StarFive dwmac module on the StarFive RISC-V SoCs.
>>>
>>> Signed-off-by: Yanhong Wang <yanhong.wang@xxxxxxxxxxxxxxxx>
>>> ---
>>>  .../devicetree/bindings/net/snps,dwmac.yaml   |   1 +
>>>  .../bindings/net/starfive,dwmac-plat.yaml     | 106 ++++++++++++++++++
>>>  MAINTAINERS                                   |   5 +
>>>  3 files changed, 112 insertions(+)
>>>  create mode 100644 Documentation/devicetree/bindings/net/starfive,dwmac-plat.yaml
>>>
>>
>> My bot found errors running 'make DT_CHECKER_FLAGS=-m dt_binding_check'
>> on your patch (DT_CHECKER_FLAGS is new in v5.13):
>>
>> yamllint warnings/errors:
>> ./Documentation/devicetree/bindings/net/starfive,dwmac-plat.yaml:30:16: [warning] wrong indentation: expected 14 but found 15 (indentation)
>>
>> dtschema/dtc warnings/errors:
>> ./Documentation/devicetree/bindings/net/starfive,dwmac-plat.yaml: $id: relative path/filename doesn't match actual path or filename
>> 	expected: http://devicetree.org/schemas/net/starfive,dwmac-plat.yaml#
>> Documentation/devicetree/bindings/net/starfive,dwmac-plat.example.dts:21:18: fatal error: dt-bindings/clock/starfive-jh7110.h: No such file or directory
>>    21 |         #include <dt-bindings/clock/starfive-jh7110.h>
> 
> Perhaps, rather than putting a long list of "prerequisite-patch-id" in
> your cover letters etc, you drop the need for headers from your bindings
> entirely? Otherwise, you need to wait for the clock bindings to be applied
> before any of your other peripherals etc can have drivers/bindings upstream.
> 
> AFAIU, and Rob/Krzk please correct me, the example in a dt-binding
> really is an *example* and there's no requirement for it to match the
> jh7110 dts exactly. Because of that you can drop the header & just do
> something like `clocks = <&clk 7>, <&clk 77>;` etc and the example is
> still valid. Same goes for all of the other driver patchsets for new
> StarFive stuff, like the pmu or crypto, that also have dt-bindings.
> 
> The only person who has to worry then about dependencies is me when I
> apply the .dts patches :)

It's nice when example looks good and matching final DTS, but that's not
a requirement. Pretty often clocks/resets/domains are mocked for the
example.

Best regards,
Krzysztof




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