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From dce33dc5a6ba5f7fcbab4d7e92cc68c756a1f714 Mon Sep 17 00:00:00 2001
From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Date: Mon, 15 Jul 2013 17:34:09 +0200
Subject: [PATCH 081/203] net: phy: call mdiobus_scan() after adding a fixed
PHY
The fixed_phy_add() function allows to register a fixed PHY. However,
when this function gets called *after* fixed_mdio_bus_init() (which
gets called at the module_init stage), then the fixed PHY is not
registered into the phylib.
In order to address this, we add a call to mdiobus_scan() in
fixed_phy_add() to ensure that the PHY indeed gets registered into the
phylib, even if the fixed_phy_add() is called after
fixed_mdio_bus_init().
This is needed because until now, the only code that was calling the
fixed_add_phy() function was PowerPC-specific platform code, which
could ensure that such fixed PHYs get registered before
fixed_mdio_bus_init() is called.
However, with the new of_phy_register_fixed_link() function, device
drivers can parse their 'fixed-link' property and register a fixed PHY
at ->probe() time, which may happen after fixed_mdio_bus_init() is
called.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
---
drivers/net/phy/fixed.c | 2 ++
1 file changed, 2 insertions(+)
--- a/drivers/net/phy/fixed.c
+++ b/drivers/net/phy/fixed.c
@@ -195,6 +195,8 @@ int fixed_phy_add(unsigned int irq, int
list_add_tail(&fp->node, &fmb->phys);
+ mdiobus_scan(fmb->mii_bus, phy_id);
+
return 0;
err_regs:
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