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| author | Lucas Stach <l.stach@pengutronix.de> | 2018-01-23 15:43:25 +0100 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2018-01-25 08:19:48 +0100 |
| commit | dbd08c5ac14993842137494c16952c01214a039d (patch) | |
| tree | 6c1f6a44627b3ee0d867c191cfcad82658720cb4 /drivers | |
| parent | dd95f5389989d69c46411d9325f7adfa043ee0a5 (diff) | |
| download | barebox-dbd08c5ac14993842137494c16952c01214a039d.tar.gz barebox-dbd08c5ac14993842137494c16952c01214a039d.tar.xz | |
net: phy: scan PHYs referenced by phandle
If we point to a PHY node by phandle, that PHY might well be on a MDIO
bus that hasn't been scanned when we look for the PHY. Fortunately we
know exactly where to look for the PHY, so make sure to scan the bus
at the right address.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/phy/phy.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c index 35a9ce7ea8..2b8fa63c06 100644 --- a/drivers/net/phy/phy.c +++ b/drivers/net/phy/phy.c @@ -319,6 +319,8 @@ static struct phy_device *of_mdio_find_phy(struct eth_device *edev) { struct device_d *dev; struct device_node *phy_node; + struct mii_bus *bus; + int addr; if (!IS_ENABLED(CONFIG_OFDEVICE)) return NULL; @@ -340,6 +342,16 @@ static struct phy_device *of_mdio_find_phy(struct eth_device *edev) if (!phy_node) return NULL; + if (!of_property_read_u32(phy_node, "reg", &addr)) { + for_each_mii_bus(bus) { + if (bus->parent->device_node == phy_node->parent) { + struct phy_device *phy = mdiobus_scan(bus, addr); + if (!IS_ERR(phy)) + return phy; + } + } + } + bus_for_each_device(&mdio_bus_type, dev) { if (dev->device_node == phy_node) return container_of(dev, struct phy_device, dev); |