From 7d976376560b72e187c96e4b18d059e0a0f9eba5 Mon Sep 17 00:00:00 2001 From: Florian Fainelli Date: Thu, 5 Dec 2013 14:52:12 -0800 Subject: [PATCH] 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 Signed-off-by: David S. Miller --- drivers/of/of_mdio.c | 5 +++-- 1 file 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 -- 2.20.1