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