Enable .soft_reset for the LAN88xx PHY driver by assigning
genphy_soft_reset() to ensure that the phylib core performs a proper
soft reset during reconfiguration.
Previously, the driver left .soft_reset unimplemented, so calls to
phy_init_hw() (e.g., from lan88xx_link_change_notify()) did not fully
reset the PHY. As a result, stale contents in the Link Partner Ability
(LPA) register could persist, causing the PHY to incorrectly report
that the link partner advertised autonegotiation even when it did not.
Using genphy_soft_reset() guarantees a clean reset of the PHY and
corrects the false autoneg reporting in these scenarios.
Fixes: ccb989e4d1ef ("net: phy: microchip: Reset LAN88xx PHY to ensure clean link state on LAN7800/7850")
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
---
drivers/net/phy/microchip.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/net/phy/microchip.c b/drivers/net/phy/microchip.c
index 13570f628aa5..5e590b0a75e5 100644
--- a/drivers/net/phy/microchip.c
+++ b/drivers/net/phy/microchip.c
@@ -488,6 +488,7 @@ static struct phy_driver microchip_phy_driver[] = {
.config_init = lan88xx_config_init,
.config_aneg = lan88xx_config_aneg,
.link_change_notify = lan88xx_link_change_notify,
+ .soft_reset = genphy_soft_reset,
/* Interrupt handling is broken, do not define related
* functions to force polling.
--
2.39.5