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| author | Oleksij Rempel <o.rempel@pengutronix.de> | 2024-11-25 09:40:50 +0100 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2024-12-02 18:56:41 -0800 |
| commit | ccb989e4d1efe0dd81b28c437443532d80d9ecee (patch) | |
| tree | 797ba0f99a623be36810d826532f424b1701b9e9 /drivers/net/ethernet/intel/ice/ice_main.c | |
| parent | 51ee075d698bb3e8df8287ac80447a18c723dd5a (diff) | |
| download | linux-ccb989e4d1efe0dd81b28c437443532d80d9ecee.tar.gz linux-ccb989e4d1efe0dd81b28c437443532d80d9ecee.tar.bz2 linux-ccb989e4d1efe0dd81b28c437443532d80d9ecee.zip | |
net: phy: microchip: Reset LAN88xx PHY to ensure clean link state on LAN7800/7850
Fix outdated MII_LPA data in the LAN88xx PHY, which is used in LAN7800
and LAN7850 USB Ethernet controllers. Due to a hardware limitation, the
PHY cannot reliably update link status after parallel detection when the
link partner does not support auto-negotiation. To mitigate this, add a
PHY reset in `lan88xx_link_change_notify()` when `phydev->state` is
`PHY_NOLINK`, ensuring the PHY starts in a clean state and reports
accurate fixed link parallel detection results.
Fixes: 792aec47d59d9 ("add microchip LAN88xx phy driver")
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Link: https://patch.msgid.link/20241125084050.414352-1-o.rempel@pengutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/ethernet/intel/ice/ice_main.c')
0 files changed, 0 insertions, 0 deletions