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net: phy: Use interrupts when available in NOLINK state

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The NOLINK state will poll the phy once a second to see if the link
has come up. If the phy has an interrupt line, this polling can be
skipped, since the phy should interrupt when the link returns.

Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Andrew Lunn 2015-11-16 23:36:46 +01:00 committed by David S. Miller
parent 819ec8e1f3
commit 321beec504
1 changed files with 3 additions and 0 deletions
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3
drivers/net/phy/phy.c
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@ -863,6 +863,9 @@ void phy_state_machine(struct work_struct *work)
needs_aneg = true;
break;
case PHY_NOLINK:
if (phy_interrupt_is_valid(phydev))
break;
err = phy_read_status(phydev);
if (err)
break;