net: phy: fixed-phy: Drop GPIO from fixed_phy_add()

All users of the fixed_phy_add() pass -1 as GPIO number
to the fixed phy driver, and all users of fixed_phy_register()
pass -1 as GPIO number as well, except for the device
tree MDIO bus.

Any new users should create a proper device and pass the
GPIO as a descriptor associated with the device so delete
the GPIO argument from the calls and drop the code looking
requesting a GPIO in fixed_phy_add().

In fixed phy_register(), investigate the "fixed-link"
node and pick the GPIO descriptor from "link-gpios" if
this property exists. Move the corresponding code out
of of_mdio.c as the fixed phy code anyways requires
OF to be in use.

Tested-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 6 deletions

diff --git a/include/linux/phy_fixed.h b/include/linux/phy_fixed.h
index 9525567b1951..c78fc203db43 100644
--- a/include/linux/phy_fixed.h
+++ b/include/linux/phy_fixed.h
@@ -15,11 +15,9 @@ struct device_node;
 #if IS_ENABLED(CONFIG_FIXED_PHY)
 extern int fixed_phy_change_carrier(struct net_device *dev, bool new_carrier);
 extern int fixed_phy_add(unsigned int irq, int phy_id,
-                         struct fixed_phy_status *status,
-                         int link_gpio);
+                         struct fixed_phy_status *status);
 extern struct phy_device *fixed_phy_register(unsigned int irq,
                                              struct fixed_phy_status *status,
-                                             int link_gpio,
                                              struct device_node *np);
 extern void fixed_phy_unregister(struct phy_device *phydev);
 extern int fixed_phy_set_link_update(struct phy_device *phydev,
@@ -27,14 +25,12 @@ extern int fixed_phy_set_link_update(struct phy_device *phydev,
                                            struct fixed_phy_status *));
 #else
 static inline int fixed_phy_add(unsigned int irq, int phy_id,
-                                struct fixed_phy_status *status,
-                                int link_gpio)
+                                struct fixed_phy_status *status)
 {
         return -ENODEV;
 }
 static inline struct phy_device *fixed_phy_register(unsigned int irq,
                                                 struct fixed_phy_status *status,
-                                                int gpio_link,
                                                 struct device_node *np)
 {
         return ERR_PTR(-ENODEV);