net: phy: extend fixed driver with fixed_phy_register()
The existing fixed_phy_add() function has several drawbacks that
prevents it from being used as is for OF-based declaration of fixed
PHYs:
* The address of the PHY on the fake bus needs to be passed, while a
dynamic allocation is desired.
* Since the phy_device instantiation is post-poned until the next
mdiobus scan, there is no way to associate the fixed PHY with its
OF node, which later prevents of_phy_connect() from finding this
fixed PHY from a given OF node.
To solve this, this commit introduces fixed_phy_register(), which will
allocate an available PHY address, add the PHY using fixed_phy_add()
and instantiate the phy_device structure associated with the provided
OF node.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Grant Likely <grant.likely@linaro.org>
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/linux/phy_fixed.h b/include/linux/phy_fixed.h
index 509d8f5..4f2478b 100644
--- a/include/linux/phy_fixed.h
+++ b/include/linux/phy_fixed.h
@@ -9,15 +9,26 @@
int asym_pause;
};
+struct device_node;
+
#ifdef CONFIG_FIXED_PHY
extern int fixed_phy_add(unsigned int irq, int phy_id,
struct fixed_phy_status *status);
+extern int fixed_phy_register(unsigned int irq,
+ struct fixed_phy_status *status,
+ struct device_node *np);
#else
static inline int fixed_phy_add(unsigned int irq, int phy_id,
struct fixed_phy_status *status)
{
return -ENODEV;
}
+static inline int fixed_phy_register(unsigned int irq,
+ struct fixed_phy_status *status,
+ struct device_node *np)
+{
+ return -ENODEV;
+}
#endif /* CONFIG_FIXED_PHY */
/*