Re: [PATCH net-next v3 2/3] dt-bindings: net: wiznet,w5100: add link-gpios

[Krzysztof Kozlowski]

On 10/08/2026 10:25, Arnd Bergmann wrote:
> On Mon, Aug 10, 2026, at 10:21, Krzysztof Kozlowski wrote:
>> On 10/08/2026 10:12, Arthur Crépin Leblond wrote:
>>>
>>> We use this line to detect a link change but don't read its value in
>>> the interrupt handler, we read the i2c PHYCFGR register to get the
>>> link status.
>>
>> I know, but won't you have soon the same problem with active? Otherwise
>> are you going to keep polling for the active link, since it is not
>> reported through the main interrupt?
> 
> I don't see how we'd ever want to report 'active' state back to
> the kernel, this just means it's either receiving or transmitting,
> and the kernel already knows when a data transfer happened
> because it either started sending or it receives an interrupt for
> a received frame.

True, that was just an example so the author thinks about it instead of
just solving one problem now. For example neither speed nor duplex are
reported in the main interrupt and you might need to configure something
if they change.

Best regards,
Krzysztof