net: stmmac: Skip PHY attach if custom PCS is in use

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When a platform provides a custom PCS via the pcs_init callback,
the MAC's phylink_pcs is already configured. In this case, no
traditional PHY device is needed.

Without this, stmmac_init_phy() falls through to the no-phy-node
path and errors out with "no phy found" when the DT has no
phy-handle for such interfaces.

Skip the PHY attach when priv->hw->phylink_pcs is set and
phy_addr is invalid.

Fixes: f0ef433fc2 ("net: stmmac: introduce pcs_init/pcs_exit stmmac operations")
Signed-off-by: Zxyan Zhu <zxyan0222@gmail.com>
Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Link: https://patch.msgid.link/20260729074237.2624940-2-zxyan0222@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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Zxyan Zhu 2026-07-29 15:42:36 +08:00 • committed by Jakub Kicinski

parent 5aed8f4044

commit af4d934164

1 changed files with 4 additions and 0 deletions

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drivers/net/ethernet/stmicro/stmmac/stmmac_main.c

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