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Merge branch 'w5100-restore-gpio-based-link-detection'

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Arthur Crepin Leblond says:

====================
w5100: restore GPIO-based link detection

In the previous version of the w5100 driver, the LINKLED pin could be
wired to a GPIO to detect the link status changes via an interrupt.
This only works on w5500 as it is the only one documenting its LINKLED
pin to hold the link status (on w5100 the LINKLED pin is changing with
RX/TX activity).

This series of patches is bringing back the link status detection on
w5500 using the Link Status bit of the PHY Configuration Register.
Additionally, the LINKLED pin can also be wired to detect link status
changes and read the register in the interrupt handler.
====================

Link: https://patch.msgid.link/20260924-wiznet-link-gpio-v11-0-42a332517b30@marmottus.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Jakub Kicinski 2026-09-29 17:31:24 -07:00
commit 7ab4bbdca9
4 changed files with 299 additions and 80 deletions
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