net: dsa: b53: Wire-up EEE

Add support for enabling and disabling EEE, as well as re-negotiating it in
.adjust_link() and in .port_enable().

Reviewed-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/dsa/b53/b53_common.c b/drivers/net/dsa/b53/b53_common.c
index 491e4ff..4e37ec2 100644 (file)
--- a/drivers/net/dsa/b53/b53_common.c
+++ b/drivers/net/dsa/b53/b53_common.c
@@ -523,6 +523,10 @@ static int b53_enable_port(struct dsa_switch *ds, int port,
 
        b53_imp_vlan_setup(ds, cpu_port);
 
+       /* If EEE was enabled, restore it */
+       if (dev->ports[port].eee.eee_enabled)
+               b53_eee_enable_set(ds, port, true);
+
        return 0;
 }
 
@@ -879,6 +883,7 @@ static void b53_adjust_link(struct dsa_switch *ds, int port,
                            struct phy_device *phydev)
 {
        struct b53_device *dev = ds->priv;
+       struct ethtool_eee *p = &dev->ports[port].eee;
        u8 rgmii_ctrl = 0, reg = 0, off;
 
        if (!phy_is_pseudo_fixed_link(phydev))
@@ -1000,6 +1005,9 @@ static void b53_adjust_link(struct dsa_switch *ds, int port,
                        b53_write8(dev, B53_CTRL_PAGE, po_reg, gmii_po);
                }
        }
+
+       /* Re-negotiate EEE if it was enabled already */
+       p->eee_enabled = b53_eee_init(ds, port, phydev);
 }
 
 int b53_vlan_filtering(struct dsa_switch *ds, int port, bool vlan_filtering)
@@ -1605,6 +1613,8 @@ static const struct dsa_switch_ops b53_switch_ops = {
        .adjust_link            = b53_adjust_link,
        .port_enable            = b53_enable_port,
        .port_disable           = b53_disable_port,
+       .get_mac_eee            = b53_get_mac_eee,
+       .set_mac_eee            = b53_set_mac_eee,
        .port_bridge_join       = b53_br_join,
        .port_bridge_leave      = b53_br_leave,
        .port_stp_state_set     = b53_br_set_stp_state,