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net: of_mdio: factor PHY registration from of_mdiobus_register 

Since commit 779d835e ("net: of_mdio: scan mdiobus for PHYs without reg
property") we have two foreach loops which do pretty much the same
thing. Factor the PHY device registration in a function helper:
of_mdiobus_register_phy() which takes care of the details and allows for
future PHY specific extensions.

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 2013-12-05 14:52:10 -08:00 committed by David S. Miller
parent 9d2c881afd
commit 2e79cb3030
1 changed files with 46 additions and 63 deletions
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109
drivers/of/of_mdio.c
View File

@ -22,6 +22,47 @@
MODULE_AUTHOR("Grant Likely <grant.likely@secretlab.ca>");
MODULE_LICENSE("GPL");
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;
is_c45 = of_device_is_compatible(child,
"ethernet-phy-ieee802.3-c45");
phy = get_phy_device(mdio, addr, is_c45);
if (!phy || IS_ERR(phy))
return 1;
if (mdio->irq) {
mdio->irq[addr] =
irq_of_parse_and_map(child, 0);
if (!mdio->irq[addr])
mdio->irq[addr] = PHY_POLL;
}
/* Associate the OF node with the device structure so it
* can be looked up later */
of_node_get(child);
phy->dev.of_node = child;
/* All data is now stored in the phy struct;
* register it */
rc = phy_device_register(phy);
if (rc) {
phy_device_free(phy);
of_node_put(child);
return 1;
}
dev_dbg(&mdio->dev, "registered phy %s at address %i\n",
child->name, addr);
return 0;
}
/**
* of_mdiobus_register - Register mii_bus and create PHYs from the device tree
* @mdio: pointer to mii_bus structure
@ -32,11 +73,10 @@ MODULE_LICENSE("GPL");
*/
int of_mdiobus_register(struct mii_bus *mdio, struct device_node *np)
{
struct phy_device *phy;
struct device_node *child;
const __be32 *paddr;
u32 addr;
bool is_c45, scanphys = false;
bool scanphys = false;
int rc, i, len;
/* Mask out all PHYs from auto probing. Instead the PHYs listed in
@ -73,38 +113,9 @@ int of_mdiobus_register(struct mii_bus *mdio, struct device_node *np)
continue;
}
if (mdio->irq) {
mdio->irq[addr] = irq_of_parse_and_map(child, 0);
if (!mdio->irq[addr])
mdio->irq[addr] = PHY_POLL;
}
is_c45 = of_device_is_compatible(child,
"ethernet-phy-ieee802.3-c45");
phy = get_phy_device(mdio, addr, is_c45);
if (!phy || IS_ERR(phy)) {
dev_err(&mdio->dev,
"cannot get PHY at address %i\n",
addr);
rc = of_mdiobus_register_phy(mdio, child, addr);
if (rc)
continue;
}
/* Associate the OF node with the device structure so it
* can be looked up later */
of_node_get(child);
phy->dev.of_node = child;
/* All data is now stored in the phy struct; register it */
rc = phy_device_register(phy);
if (rc) {
phy_device_free(phy);
of_node_put(child);
continue;
}
dev_dbg(&mdio->dev, "registered phy %s at address %i\n",
child->name, addr);
}
if (!scanphys)
@ -117,9 +128,6 @@ int of_mdiobus_register(struct mii_bus *mdio, struct device_node *np)
if (paddr)
continue;
is_c45 = of_device_is_compatible(child,
"ethernet-phy-ieee802.3-c45");
for (addr = 0; addr < PHY_MAX_ADDR; addr++) {
/* skip already registered PHYs */
if (mdio->phy_map[addr])
@ -129,34 +137,9 @@ int of_mdiobus_register(struct mii_bus *mdio, struct device_node *np)
dev_info(&mdio->dev, "scan phy %s at address %i\n",
child->name, addr);
phy = get_phy_device(mdio, addr, is_c45);
if (!phy || IS_ERR(phy))
rc = of_mdiobus_register_phy(mdio, child, addr);
if (rc)
continue;
if (mdio->irq) {
mdio->irq[addr] =
irq_of_parse_and_map(child, 0);
if (!mdio->irq[addr])
mdio->irq[addr] = PHY_POLL;
}
/* Associate the OF node with the device structure so it
* can be looked up later */
of_node_get(child);
phy->dev.of_node = child;
/* All data is now stored in the phy struct;
* register it */
rc = phy_device_register(phy);
if (rc) {
phy_device_free(phy);
of_node_put(child);
continue;
}
dev_info(&mdio->dev, "registered phy %s at address %i\n",
child->name, addr);
break;
}
}