From: Florian Fainelli <[email protected]> The "max-speed" property is defined per the ePAPR specification to express the maximum speed a PHY supports. Use that property, if present to set the phydev->supported features which properly restricts the PHY within the range of defined speeds.
Signed-off-by: Florian Fainelli <[email protected]> --- drivers/of/of_mdio.c | 25 ++++++++++++++++++++++++- 1 file changed, 24 insertions(+), 1 deletion(-) diff --git a/drivers/of/of_mdio.c b/drivers/of/of_mdio.c index 4923ab2..e1e19e5 100644 --- a/drivers/of/of_mdio.c +++ b/drivers/of/of_mdio.c @@ -22,12 +22,30 @@ MODULE_AUTHOR("Grant Likely <[email protected]>"); MODULE_LICENSE("GPL"); +static void of_set_phy_supported(struct phy_device *phydev, u32 max_speed) +{ + 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; + } +} + static int of_mdiobus_register_phy(struct mii_bus *mdio, struct device_node *child, u32 addr) { struct phy_device *phy; bool is_c45; int rc, prev_irq; + u32 max_speed = 0; is_c45 = of_device_is_compatible(child, "ethernet-phy-ieee802.3-c45"); @@ -58,8 +76,13 @@ 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); + child->name, addr); return 0; } -- 1.8.3.2 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
