net: phy: mdio-bitbang: Remove reset support

The mdio-gpio driver was the only user of the interface reset option.
Since it no longer uses it, remove it from the bit banging code.

Signed-off-by: Andrew Lunn <[e-mail]>
Signed-off-by: David S. Miller <[e-mail]>

drivers/net/phy/mdio-bitbang.c

···
 	return 0;
 }
 
-static int mdiobb_reset(struct mii_bus *bus)
-{
-	struct mdiobb_ctrl *ctrl = bus->priv;
-	if (ctrl->reset)
-		ctrl->reset(bus);
-	return 0;
-}
-
 struct mii_bus *alloc_mdio_bitbang(struct mdiobb_ctrl *ctrl)
 {
 	struct mii_bus *bus;
···
 
 	bus->read = mdiobb_read;
 	bus->write = mdiobb_write;
-	bus->reset = mdiobb_reset;
 	bus->priv = ctrl;
 
 	return bus;

include/linux/mdio-bitbang.h

···
 
 struct mdiobb_ctrl {
 	const struct mdiobb_ops *ops;
-	/* reset callback */
-	int (*reset)(struct mii_bus *bus);
 };
 
 /* The returned bus is not yet registered with the phy layer. */