[PATCH net-next v3 0/2] net: stmmac: Fix PHY attach when custom PCS is in use

From: Zxyan Zhu

Date: Wed Jul 29 2026 - 03:53:15 EST


This series fixes the issue where stmmac platforms using a custom PCS
via the pcs_init callback fail to probe when no phy-handle is specified
in the device tree.

Patch 1 skips the PHY attach in stmmac when a custom PCS is already
configured via priv->hw->phylink_pcs and phy_addr is invalid, avoiding
the "no phy found" error for platforms that manage link state entirely
through the PCS.

Patch 2 is Russell King's phylink patch that relaxes phylink_expects_phy()
to allow PHYs to be attached in 802.3z inband mode.

v3:
- Move the priv->hw->phylink_pcs check inside the "addr < 0" branch
to avoid skipping the phy_addr fallback for boards with both a PCS
and a PHY
- Reverse patch order: stmmac fix first, phylink change second

v2:
- Include Russell's phylink patch as prerequisite
- This is now a 2-patch series targeting net-next

Zxyan Zhu (1):
net: stmmac: Skip PHY attach if custom PCS is in use

Russell King (Oracle) (1):
net: phylink: allow PHYs to be attached in 802.3z inband mode

drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 4 ++++
drivers/net/phy/phylink.c | 8 ++------
2 files changed, 6 insertions(+), 6 deletions(-)

--
2.34.1