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net: usb: lan78xx: lan78xx_phy_init(): use PHY_POLL instead of "0" if…
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… no IRQ is available

On most systems request for IRQ 0 will fail, phylib will print an error message
and fall back to polling. To fix this set the phydev->irq to PHY_POLL if no IRQ
is available.

Fixes: cc89c32 ("lan78xx: Use irq_domain for phy interrupt from USB Int. EP")
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Sven Schuchmann <schuchmann@schleissheimer.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Sven Schuchmann authored and David S. Miller committed Nov 29, 2021
1 parent 49989ad commit 817b653
Showing 1 changed file with 1 addition and 1 deletion.
2 changes: 1 addition & 1 deletion drivers/net/usb/lan78xx.c
Original file line number Diff line number Diff line change
@@ -2228,7 +2228,7 @@ static int lan78xx_phy_init(struct lan78xx_net *dev)
if (dev->domain_data.phyirq > 0)
phydev->irq = dev->domain_data.phyirq;
else
phydev->irq = 0;
phydev->irq = PHY_POLL;
netdev_dbg(dev->net, "phydev->irq = %d\n", phydev->irq);

/* set to AUTOMDIX */

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