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| author | Florian Fainelli <f.fainelli@gmail.com> | 2014-02-11 17:27:42 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-02-12 19:08:49 -0500 |
| commit | 8bed1285b98e6a90403cdfe0500e8ad6bd8e8f1c (patch) | |
| tree | 05000e0153853964af653ad5ed566a669a9a8681 | |
| parent | b0ae009f3dc14643e56972cfc08c060dd72cc24d (diff) | |
| download | lwn-8bed1285b98e6a90403cdfe0500e8ad6bd8e8f1c.tar.gz lwn-8bed1285b98e6a90403cdfe0500e8ad6bd8e8f1c.zip | |
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 <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | Documentation/ABI/testing/sysfs-bus-mdio | 10 | ||||
| -rw-r--r-- | drivers/net/phy/mdio_bus.c | 10 |
2 files changed, 20 insertions, 0 deletions
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); |