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author | Sascha Hauer <s.hauer@pengutronix.de> | 2014-05-21 15:29:45 +0200 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2014-05-22 15:43:02 -0400 |
commit | de906af1cf8d5f2e9c461148577ac26dcdaea86e (patch) | |
tree | 4732496e85bf6845316ea9055605abf4b20dbda1 /drivers | |
parent | c242a47238fa2a6a54af8a16e62b54e6e031d4bc (diff) | |
download | linux-de906af1cf8d5f2e9c461148577ac26dcdaea86e.tar.gz linux-de906af1cf8d5f2e9c461148577ac26dcdaea86e.tar.bz2 linux-de906af1cf8d5f2e9c461148577ac26dcdaea86e.zip |
net: phy: make of_set_phy_supported work with genphy driver
of_set_phy_supported allows overwiting hardware capabilities of
a phy with values from the devicetree. of_set_phy_supported is
called right after phy_device_register in the assumption that
phy_probe is called from phy_device_register and the features
of the phy are already initialized. For the genphy driver this
is not true, here phy_probe is called later during phy_connect
time. phy_probe will then overwrite all settings done from
of_set_phy_supported
Fix this by moving of_set_phy_supported to the core phy code
and calling it from phy_probe.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/net/phy/phy_device.c | 36 | ||||
-rw-r--r-- | drivers/of/of_mdio.c | 26 |
2 files changed, 35 insertions, 27 deletions
diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c index fc569eae7215..eb3b946bd8c0 100644 --- a/drivers/net/phy/phy_device.c +++ b/drivers/net/phy/phy_device.c @@ -33,6 +33,7 @@ #include <linux/mdio.h> #include <linux/io.h> #include <linux/uaccess.h> +#include <linux/of.h> #include <asm/irq.h> @@ -1166,6 +1167,38 @@ static int gen10g_resume(struct phy_device *phydev) return 0; } +static void of_set_phy_supported(struct phy_device *phydev) +{ + struct device_node *node = phydev->dev.of_node; + u32 max_speed; + + if (!IS_ENABLED(CONFIG_OF_MDIO)) + return; + + if (!node) + return; + + if (!of_property_read_u32(node, "max-speed", &max_speed)) { + /* The default values for phydev->supported are provided by the PHY + * driver "features" member, we want to reset to sane defaults fist + * before supporting higher speeds. + */ + phydev->supported &= PHY_DEFAULT_FEATURES; + + switch (max_speed) { + default: + return; + + case SPEED_1000: + phydev->supported |= PHY_1000BT_FEATURES; + case SPEED_100: + phydev->supported |= PHY_100BT_FEATURES; + case SPEED_10: + phydev->supported |= PHY_10BT_FEATURES; + } + } +} + /** * phy_probe - probe and init a PHY device * @dev: device to probe and init @@ -1200,7 +1233,8 @@ static int phy_probe(struct device *dev) * or both of these values */ phydev->supported = phydrv->features; - phydev->advertising = phydrv->features; + of_set_phy_supported(phydev); + phydev->advertising = phydev->supported; /* Set the state to READY by default */ phydev->state = PHY_READY; diff --git a/drivers/of/of_mdio.c b/drivers/of/of_mdio.c index 4c1e01ed16dc..b85709458639 100644 --- a/drivers/of/of_mdio.c +++ b/drivers/of/of_mdio.c @@ -23,27 +23,6 @@ MODULE_AUTHOR("Grant Likely <grant.likely@secretlab.ca>"); MODULE_LICENSE("GPL"); -static void of_set_phy_supported(struct phy_device *phydev, u32 max_speed) -{ - /* The default values for phydev->supported are provided by the PHY - * driver "features" member, we want to reset to sane defaults fist - * before supporting higher speeds. - */ - phydev->supported &= PHY_DEFAULT_FEATURES; - - switch (max_speed) { - default: - return; - - case SPEED_1000: - phydev->supported |= PHY_1000BT_FEATURES; - case SPEED_100: - phydev->supported |= PHY_100BT_FEATURES; - case SPEED_10: - phydev->supported |= PHY_10BT_FEATURES; - } -} - /* Extract the clause 22 phy ID from the compatible string of the form * ethernet-phy-idAAAA.BBBB */ static int of_get_phy_id(struct device_node *device, u32 *phy_id) @@ -104,11 +83,6 @@ static int of_mdiobus_register_phy(struct mii_bus *mdio, struct device_node *chi return 1; } - /* Set phydev->supported based on the "max-speed" property - * if present */ - if (!of_property_read_u32(child, "max-speed", &max_speed)) - of_set_phy_supported(phy, max_speed); - dev_dbg(&mdio->dev, "registered phy %s at address %i\n", child->name, addr); |