diff options
| author | Florian Fainelli <f.fainelli@gmail.com> | 2013-12-06 02:52:12 +0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-12-06 23:57:21 +0400 |
| commit | 7d976376560b72e187c96e4b18d059e0a0f9eba5 (patch) | |
| tree | cf45208ea156824643ce01398abefa2feba4da4a | |
| parent | bed2f9ed2f3c4debe2e930c44ee95af980db7e20 (diff) | |
| download | linux-7d976376560b72e187c96e4b18d059e0a0f9eba5.tar.xz | |
net: of_mdio: do not overwrite PHY interrupt configuration
If irq_of_parse_and_map fails to find an interrupt line for a given PHY,
we will force the PHY interrupt to be PHY_POLL, completely overriding
the previous value that the MDIO bus may have set for us (e.g:
PHY_IGNORE_INTERRUPT). In case of failure, just restore the previous
value.
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/of/of_mdio.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/of/of_mdio.c b/drivers/of/of_mdio.c index f93ebca0fcb7..14feffc36964 100644 --- a/drivers/of/of_mdio.c +++ b/drivers/of/of_mdio.c @@ -27,7 +27,7 @@ static int of_mdiobus_register_phy(struct mii_bus *mdio, struct device_node *chi { struct phy_device *phy; bool is_c45; - int rc; + int rc, prev_irq; is_c45 = of_device_is_compatible(child, "ethernet-phy-ieee802.3-c45"); @@ -37,10 +37,11 @@ static int of_mdiobus_register_phy(struct mii_bus *mdio, struct device_node *chi return 1; if (mdio->irq) { + prev_irq = mdio->irq[addr]; mdio->irq[addr] = irq_of_parse_and_map(child, 0); if (!mdio->irq[addr]) - mdio->irq[addr] = PHY_POLL; + mdio->irq[addr] = prev_irq; } /* Associate the OF node with the device structure so it |