stmmac: never check EEE in case of a switch is attached

This patch is to skip the EEE initialisation when the stmmac
is using a switch (with a fixed phy support).

Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.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 df15f00b1246c5d53f0438da393467a921832aa6..3b8b57e3bd208d0a8edc00f0e867688a8b38fcd5 100644 (file)
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -275,6 +275,7 @@ static void stmmac_eee_ctrl_timer(unsigned long arg)
  */
 bool stmmac_eee_init(struct stmmac_priv *priv)
 {
+       char *phy_bus_name = priv->plat->phy_bus_name;
        bool ret = false;
 
        /* Using PCS we cannot dial with the phy registers at this stage
@@ -284,6 +285,10 @@ bool stmmac_eee_init(struct stmmac_priv *priv)
            (priv->pcs == STMMAC_PCS_RTBI))
                goto out;
 
+       /* Never init EEE in case of a switch is attached */
+       if (phy_bus_name && (!strcmp(phy_bus_name, "fixed")))
+               goto out;
+
        /* MAC core supports the EEE feature. */
        if (priv->dma_cap.eee) {
                int tx_lpi_timer = priv->tx_lpi_timer;