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| author | Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com> | 2014-02-05 23:40:05 +0100 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2014-02-10 09:08:51 +0100 |
| commit | 29af281cb1bc1d8b9d098fa6b550af9b019a2512 (patch) | |
| tree | d916c99eaa169b74c26c67fc03b5f8506135a6c4 /drivers/net/phy/phy.c | |
| parent | 7ccd47fd5ca57b0755abe39cb39887aae783ac9d (diff) | |
| download | barebox-29af281cb1bc1d8b9d098fa6b550af9b019a2512.tar.gz barebox-29af281cb1bc1d8b9d098fa6b550af9b019a2512.tar.xz | |
net: phy: add of_phy_device_connect
This implements a of_phy_device_connect to allow DT enabled drivers
to connect to a PHY device by using the PHY's DT node only. It
currently assumes that each PHY node is a child of the corresponding
mdio bus.
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'drivers/net/phy/phy.c')
| -rw-r--r-- | drivers/net/phy/phy.c | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c index faa5c26c22..879939d4a2 100644 --- a/drivers/net/phy/phy.c +++ b/drivers/net/phy/phy.c @@ -331,6 +331,37 @@ fail: return ret; } +#if defined(CONFIG_OFTREE) +int of_phy_device_connect(struct eth_device *edev, struct device_node *phy_np, + void (*adjust_link) (struct eth_device *edev), + u32 flags, phy_interface_t interface) +{ + struct device_node *bus_np; + struct mii_bus *miibus; + int phy_addr = -ENODEV; + + if (!phy_np) + return -EINVAL; + + of_property_read_u32(phy_np, "reg", &phy_addr); + + bus_np = of_get_parent(phy_np); + if (!bus_np) + return -ENODEV; + + for_each_mii_bus(miibus) { + if (miibus->parent && miibus->parent->device_node == bus_np) + return phy_device_connect(edev, miibus, phy_addr, + adjust_link, flags, interface); + } + + dev_err(&edev->dev, "unable to mdio bus for phy %s\n", + phy_np->full_name); + + return -ENODEV; +} +#endif + /* Generic PHY support and helper functions */ /** |