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net: phy: expose phydev->has_fixups to sysfs

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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>
This commit is contained in:
Florian Fainelli 2014-02-11 17:27:42 -08:00 • committed by David S. Miller
parent b0ae009f3d
commit 8bed1285b9
2 changed files with 20 additions and 0 deletions
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10
Documentation/ABI/testing/sysfs-bus-mdio
View file

@ -17,3 +17,13 @@ Description:
Ethernet driver during bus enumeration, encoded in string. Ethernet driver during bus enumeration, encoded in string.
This interface mode is used to configure the Ethernet MAC with the This interface mode is used to configure the Ethernet MAC with the
appropriate mode for its data lines to the PHY hardware. 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.

10
drivers/net/phy/mdio_bus.c
View file

@ -441,9 +441,19 @@ phy_interface_show(struct device *dev, struct device_attribute *attr, char *buf)
} }
static DEVICE_ATTR_RO(phy_interface); 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[] = { static struct attribute *mdio_dev_attrs[] = {
&dev_attr_phy_id.attr, &dev_attr_phy_id.attr,
&dev_attr_phy_interface.attr, &dev_attr_phy_interface.attr,
&dev_attr_phy_has_fixups.attr,
NULL, NULL,
}; };
ATTRIBUTE_GROUPS(mdio_dev); ATTRIBUTE_GROUPS(mdio_dev);