Re: [PATCH] w5100: restore GPIO-based link detection
Andrew Lunn <[email protected]> Tue, 4 Aug 2026 19:54:29 +0200
| Newsgroups | gmane.linux.kernel,gmane.linux.network,gmane.linux.drivers.devicetree |
|---|---|
| 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