net: pcs: xpcs: convert to mdio_device

Unify the 2 existing PCS drivers (lynx and xpcs) by doing a similar
thing on probe, which is to have a *_create function that takes a
struct mdio_device * given by the caller, and builds a private PCS
structure around that.

This changes stmmac to hold only a pointer to the xpcs, as opposed to
the full structure. This will be used in the next patch when struct
mdio_xpcs_ops is removed. Currently a pointer to struct mdio_xpcs_ops
is used as a shorthand to determine whether the port has an XPCS or not.
We can do the same now with the mdio_xpcs_args pointer.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 4 insertions, 3 deletions

diff --git a/include/linux/pcs/pcs-xpcs.h b/include/linux/pcs/pcs-xpcs.h
index 1d8581b74d81..57a199393d63 100644
--- a/include/linux/pcs/pcs-xpcs.h
+++ b/include/linux/pcs/pcs-xpcs.h
@@ -17,9 +17,8 @@
 struct xpcs_id;
 
 struct mdio_xpcs_args {
-	struct mii_bus *bus;
+	struct mdio_device *mdiodev;
 	const struct xpcs_id *id;
-	int addr;
 };
 
 struct mdio_xpcs_ops {
@@ -37,6 +36,8 @@ void xpcs_validate(struct mdio_xpcs_args *xpcs, unsigned long *supported,
 		   struct phylink_link_state *state);
 int xpcs_config_eee(struct mdio_xpcs_args *xpcs, int mult_fact_100ns,
 		    int enable);
-int xpcs_probe(struct mdio_xpcs_args *xpcs, phy_interface_t interface);
+struct mdio_xpcs_args *xpcs_create(struct mdio_device *mdiodev,
+				   phy_interface_t interface);
+void xpcs_destroy(struct mdio_xpcs_args *xpcs);
 
 #endif /* __LINUX_PCS_XPCS_H */