Re: [PATCH] w5100: restore GPIO-based link detection

Andrew Lunn <[email protected]>
Newsgroups org.kernel.vger.netdev,org.kernel.vger.linux-devicetree,org.kernel.vger.linux-kernel
Message-ID <[email protected]> 
On Tue, Aug 04, 2026 at 04:38:35PM +0200, Arthur Crépin Leblond wrote:
> Commit dacf281771a9 ("w5100: remove unused gpio link detection")
> dropped the link_gpio/link_irq handling on the grounds that no
> devicetree user passed a "link" GPIO at the time.
> 
> Signed-off-by: Arthur Crépin Leblond <[email protected]>

Hi Arthur

Do you understand the architecture of this device? What exactly is on
the other end of this GPIO?

https://wiznet.io/products/ethernet-chips/w5100

suggests it has an integrated PHY. So why is a GPIO needed to report
link?

Thanks
	Andrew
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