net: dsa: yt921x: Fix external port detection

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The YT921x switch has two MAC ports: 8 and 9. Currently, the driver
only allows port 8 as an external port, while port 9 is not working:

yt921x mdio-bus:1d: Wrong mode 23 on port 9
yt921x mdio-bus:1d: Failed to config port 9: -22

Update the external port detection logic to enable the external PHY
connected to port 9.

Cc: stable+noautosel@kernel.org # never worked
Signed-off-by: Chukun Pan <amadeus@jmu.edu.cn>
Link: https://patch.msgid.link/20260710100000.3018614-1-amadeus@jmu.edu.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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Chukun Pan 2026-07-10 18:00:00 +08:00 • committed by Jakub Kicinski

parent e372a49cb8

commit f2596ce59b

1 changed files with 1 additions and 1 deletions

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drivers/net/dsa/yt921x.h

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