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We found the stmmac_hw_setup() when system resumes will called after the stmmac_mac_link_up(). So the correct values set in stmmac_mac_link_up() are overwritten by stmmac_core_init() in phylink_resolve(). So use the flag added in phylink to keep phylink_resolve() is executed after the stmmac_hw_setup(). Signed-off-by: Clark Wang --- drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index 18c7ca29da2c..4f89061cc537 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -7432,6 +7432,7 @@ int stmmac_suspend(struct device *dev) phylink_speed_down(priv->phylink, false); phylink_suspend(priv->phylink, false); } + phylink_clear_mac_ready(priv->phylink); rtnl_unlock(); if (priv->dma_cap.fpesel) { @@ -7545,6 +7546,7 @@ int stmmac_resume(struct device *dev) stmmac_clear_descriptors(priv, &priv->dma_conf); stmmac_hw_setup(ndev, false); + phylink_set_mac_ready(priv->phylink); stmmac_init_coalesce(priv); stmmac_set_rx_mode(ndev);