net: stmmac: trigger PCS EEE to turn off on link down

The current implementation enable PCS EEE feature in the event of link
up, but PCS EEE feature is not disabled on link down.

This patch makes sure PCE EEE feature is disabled on link down.

Fixes: a90e014895d4 ("net: stmmac: fix EEE init issue when paired with EEE capable PHYs")
Signed-off-by: Wong Vee Khee <vee.khee.wong@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 981ccf47dceac95fa870818dc455d77e2849a078..eb3b7bf771d7b3a67d7aab18ce1478eeab3ce8e1 100644 (file)
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -477,6 +477,10 @@ bool stmmac_eee_init(struct stmmac_priv *priv)
                        stmmac_lpi_entry_timer_config(priv, 0);
                        del_timer_sync(&priv->eee_ctrl_timer);
                        stmmac_set_eee_timer(priv, priv->hw, 0, eee_tw_timer);
+                       if (priv->hw->xpcs)
+                               xpcs_config_eee(priv->hw->xpcs,
+                                               priv->plat->mult_fact_100ns,
+                                               false);
                }
                mutex_unlock(&priv->lock);
                return false;
@@ -1038,7 +1042,7 @@ static void stmmac_mac_link_down(struct phylink_config *config,
        stmmac_mac_set(priv, priv->ioaddr, false);
        priv->eee_active = false;
        priv->tx_lpi_enabled = false;
-       stmmac_eee_init(priv);
+       priv->eee_enabled = stmmac_eee_init(priv);
        stmmac_set_eee_pls(priv, priv->hw, false);
 
        if (priv->dma_cap.fpesel)