4.2.8-ckt1 -stable review patch. If anyone has any objections, please let me know.
------------------ From: Andrew Lunn <[email protected]> [ Upstream commit 651df2183543bc92f5dbcf99cd9e236ead0bc4c5 ] commit 8b63ec1837fa ("phylib: Make PHYs children of their MDIO bus, not the bus' parent.") changed the parenting of PHY devices, making them a child of the MDIO bus, instead of the MAC device. This broken the Micrel PHY driver which has a deprecated feature of allowing PHY properties to be placed into the MAC node. In order to find the MAC node, we need to walk up the tree of devices until we find one with an OF node attached. Reported-by: Dinh Nguyen <[email protected]> Suggested-by: David Daney <[email protected]> Acked-by: David Daney <[email protected]> Fixes: 8b63ec1837fa ("phylib: Make PHYs children of their MDIO bus, not the bus' parent.") Signed-off-by: Andrew Lunn <[email protected]> Tested-by: Dinh Nguyen <[email protected]> Acked-by: Florian Fainelli <[email protected]> Signed-off-by: David S. Miller <[email protected]> Signed-off-by: Kamal Mostafa <[email protected]> --- drivers/net/phy/micrel.c | 15 ++++++++++++--- 1 file changed, 12 insertions(+), 3 deletions(-) diff --git a/drivers/net/phy/micrel.c b/drivers/net/phy/micrel.c index 499185e..4bb8149 100644 --- a/drivers/net/phy/micrel.c +++ b/drivers/net/phy/micrel.c @@ -339,9 +339,18 @@ static int ksz9021_config_init(struct phy_device *phydev) { const struct device *dev = &phydev->dev; const struct device_node *of_node = dev->of_node; - - if (!of_node && dev->parent->of_node) - of_node = dev->parent->of_node; + const struct device *dev_walker; + + /* The Micrel driver has a deprecated option to place phy OF + * properties in the MAC node. Walk up the tree of devices to + * find a device with an OF node. + */ + dev_walker = &phydev->dev; + do { + of_node = dev_walker->of_node; + dev_walker = dev_walker->parent; + + } while (!of_node && dev_walker); if (of_node) { ksz9021_load_values_from_of(phydev, of_node, -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
