diff options
| author | Giuseppe Cavallaro <peppe.cavallaro@st.com> | 2016-02-29 14:27:39 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-03-02 14:21:33 -0500 |
| commit | 8e99fc5f887a072ee023eb9a3240eba85e768734 (patch) | |
| tree | 5a7d88fb771c0dd5ecefb9cd1536c2fbc6f7a865 | |
| parent | 0e80bdc9a72df3b31a9fc2012102a6cc8d664e93 (diff) | |
stmmac: do not poll phy handler when attach a switch
This patch avoids to call the stmmac_adjust_link when
the driver is connected to a switch by using the FIXED_PHY
support. Prior this patch the phydev->irq was set as PHY_POLL
so periodically the phy handler was invoked spending useless
time because the link cannot actually change.
Note that the stmmac_adjust_link will be called just one
time and this guarantees that the ST glue logic will be
setup according to the mode and speed fixed.
Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: Alexandre TORGUE <alexandre.torgue@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index 90b2612db03a..eab7ac0f5bc1 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -866,6 +866,11 @@ static int stmmac_init_phy(struct net_device *dev) phy_disconnect(phydev); return -ENODEV; } + + /* If attached to a switch, there is no reason to poll phy handler */ + if (!strcmp(priv->plat->phy_bus_name, "fixed")) + phydev->irq = PHY_IGNORE_INTERRUPT; + pr_debug("stmmac_init_phy: %s: attached to PHY (UID 0x%x)" " Link = %d\n", dev->name, phydev->phy_id, phydev->link); |