net: dsa: allow switch drivers to specify phy_device::dev_flags

Some switch drivers (e.g: bcm_sf2) may have to communicate specific
workarounds or flags towards the PHY device driver. Allow switches
driver to be delegated that task by introducing a get_phy_flags()
callback which will do just that.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 8 insertions, 1 deletions

diff --git a/net/dsa/slave.c b/net/dsa/slave.c
index 90c9689ed362..a7997265019a 100644
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -371,6 +371,7 @@ static void dsa_slave_phy_setup(struct dsa_slave_priv *p,
         struct dsa_chip_data *cd = ds->pd;
         struct device_node *phy_dn, *port_dn;
         bool phy_is_fixed = false;
+        u32 phy_flags = 0;
         int ret;
 
         port_dn = cd->port_dn[p->port];
@@ -390,9 +391,12 @@ static void dsa_slave_phy_setup(struct dsa_slave_priv *p,
                 phy_dn = port_dn;
         }
 
+        if (ds->drv->get_phy_flags)
+                phy_flags = ds->drv->get_phy_flags(ds, p->port);
+
         if (phy_dn)
                 p->phy = of_phy_connect(slave_dev, phy_dn,
-                                        dsa_slave_adjust_link, 0,
+                                        dsa_slave_adjust_link, phy_flags,
                                         p->phy_interface);
 
         if (p->phy && phy_is_fixed)
@@ -480,6 +484,9 @@ dsa_slave_create(struct dsa_switch *ds, struct device *parent,
         netif_carrier_off(slave_dev);
 
         if (p->phy != NULL) {
+                if (ds->drv->get_phy_flags(ds, port))
+                        p->phy->dev_flags |= ds->drv->get_phy_flags(ds, port);
+
                 phy_attach(slave_dev, dev_name(&p->phy->dev),
                            PHY_INTERFACE_MODE_GMII);