net: phy: track registered state of a phy device

With this phy_device_connect only registers a phy device if it wasn't
registered already. This allows us to register phy devices outside
of ethernet drivers. phy_device_connect will now pick up an already
registered phy given that it's not attached to another ethernet device.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

1 files changed, 2 insertions, 0 deletions

diff --git a/include/linux/phy.h b/include/linux/phy.h
index a1c629e9dc..19e4d20662 100644
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -161,6 +161,8 @@ struct phy_device {
 	int autoneg;
 	int force;
 
+	int registered;
+
 	/* private data pointer */
 	/* For use by PHYs to maintain extra state */
 	void *priv;