From: Florian Fainelli Date: Wed, 12 Feb 2014 01:27:42 +0000 (-0800) Subject: net: phy: expose phydev->has_fixups to sysfs X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=8bed1285b98e6a90403cdfe0500e8ad6bd8e8f1c;p=linux-beck.git net: phy: expose phydev->has_fixups to sysfs Expose the PHY device has_fixups boolean as a sysfs property to help troubleshooting PHY configurations. Signed-off-by: Florian Fainelli Signed-off-by: David S. Miller --- diff --git a/Documentation/ABI/testing/sysfs-bus-mdio b/Documentation/ABI/testing/sysfs-bus-mdio index 2133afd0b067..491baaf4285f 100644 --- a/Documentation/ABI/testing/sysfs-bus-mdio +++ b/Documentation/ABI/testing/sysfs-bus-mdio @@ -17,3 +17,13 @@ Description: Ethernet driver during bus enumeration, encoded in string. This interface mode is used to configure the Ethernet MAC with the appropriate mode for its data lines to the PHY hardware. + +What: /sys/bus/mdio_bus/devices/.../phy_has_fixups +Date: February 2014 +KernelVersion: 3.15 +Contact: netdev@vger.kernel.org +Description: + This attribute contains the boolean value whether a given PHY + device has had any "fixup" workaround running on it, encoded as + a boolean. This information is provided to help troubleshooting + PHY configurations. diff --git a/drivers/net/phy/mdio_bus.c b/drivers/net/phy/mdio_bus.c index 7c66ea095a46..76f54b32a120 100644 --- a/drivers/net/phy/mdio_bus.c +++ b/drivers/net/phy/mdio_bus.c @@ -441,9 +441,19 @@ phy_interface_show(struct device *dev, struct device_attribute *attr, char *buf) } static DEVICE_ATTR_RO(phy_interface); +static ssize_t +phy_has_fixups_show(struct device *dev, struct device_attribute *attr, char *buf) +{ + struct phy_device *phydev = to_phy_device(dev); + + return sprintf(buf, "%d\n", phydev->has_fixups); +} +static DEVICE_ATTR_RO(phy_has_fixups); + static struct attribute *mdio_dev_attrs[] = { &dev_attr_phy_id.attr, &dev_attr_phy_interface.attr, + &dev_attr_phy_has_fixups.attr, NULL, }; ATTRIBUTE_GROUPS(mdio_dev);