phy: fixed_phy: Add gpio to determine link up/down.

An SFP module may have a link up/down status pin which can be
connection to a GPIO line of the host. Add support for reading such an
GPIO in the fixed_phy driver.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 6 insertions, 2 deletions

diff --git a/include/linux/phy_fixed.h b/include/linux/phy_fixed.h
index fe5732d53eda..2400d2ea4f34 100644
--- a/include/linux/phy_fixed.h
+++ b/include/linux/phy_fixed.h
@@ -13,9 +13,11 @@ struct device_node;
 
 #if IS_ENABLED(CONFIG_FIXED_PHY)
 extern int fixed_phy_add(unsigned int irq, int phy_id,
-                         struct fixed_phy_status *status);
+                         struct fixed_phy_status *status,
+                         int link_gpio);
 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_del(int phy_addr);
 extern int fixed_phy_set_link_update(struct phy_device *phydev,
@@ -26,12 +28,14 @@ extern int fixed_phy_update_state(struct phy_device *phydev,
                            const struct fixed_phy_status *changed);
 #else
 static inline int fixed_phy_add(unsigned int irq, int phy_id,
-                                struct fixed_phy_status *status)
+                                struct fixed_phy_status *status,
+                                int link_gpio)
 {
         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);