[PATCH 4/4] dts: iot2050: Support IOT2050-SM variant

Krzysztof Kozlowski krzysztof.kozlowski at linaro.org
Tue Dec 19 07:39:35 PST 2023


On 19/12/2023 16:37, Jan Kiszka wrote:
>>>>
>>>> You have label for that... Somehow all these nodes are half-baked,
>>>> without all the expected properties and now you call node name as ABI.
>>>> The node name is not the ABI.
>>>
>>> Well, existing userspace uses those names, and adding the properties
>>> would break that interface. Now, does Linux do that?
>>
>> I don't think you understood the concept. There is no change for
>> userspace. Same interface, same names. No ABI break.
> 
> I do understand the impact very well:
> open("/sys/class/leds/user-led1-red") has to work for all the variants,
> consistently and backward-compatible for userspace.

And it will. The name is the same.

Best regards,
Krzysztof




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