[PATCH] arm64: dts: Introduce more nodes to EN7581 SoC evaluation board

[Krzysztof Kozlowski]

On 04/02/2025 17:15, Lorenzo Bianconi wrote:
>> On 03/02/2025 17:04, Krzysztof Kozlowski wrote:
>>>> +
>>>> +		rng at 1faa1000 {
>>>> +			compatible = "airoha,en7581-trng";
>>>> +			reg = <0x0 0x1faa1000 0x0 0xc04>;
>>>> +			interrupts = <GIC_SPI 35 IRQ_TYPE_LEVEL_HIGH>;
>>>> +		};
>>>> +
>>>> +		system-controller at 1fbf0200 {
>>>> +			compatible = "syscon", "simple-mfd";
>>>
>>> These are never allowed alone. I am pretty sure I added proper checks
>>> which should point it out, so I think you did not really test your DTS.
>>>
>>> It does not look like you tested the DTS against bindings. Please run
>>> `make dtbs_check W=1` (see
>>> Documentation/devicetree/bindings/writing-schema.rst or
>>> https://www.linaro.org/blog/tips-and-tricks-for-validating-devicetree-sources-with-the-devicetree-schema/
>>> for instructions).
>>> Maybe you need to update your dtschema and yamllint. Don't rely on
>>> distro packages for dtschema and be sure you are using the latest
>>> released dtschema.
>>>
>>
>> Now I see Rob's report:
>> arch/arm64/boot/dts/airoha/en7581-evb.dtb: system-controller at 1fbf0200:
>> compatible: ['syscon', 'simple-mfd'] is too short
>> which confirms untested code. Schema is there for a reason. :(
> 
> actually I have tested them with the following command (but without W=1).
> 
> make CHECK_DTBS=y DT_SCHEMA_FILES=airoha airoha/en7581-evb.dtb
> 
> - dtschema 2024.11
> - yamllint 1.35.1
> 
> With W=1 I can see more issues, I will fix issues in v2.

Rob's warning does not come from W=1. Your test cmd was incorrect: drop
DT_SCHEMA_FILES. You must test your code against ENTIRE bindings, not
some subset.

Best regards,
Krzysztof