Auto-probe of c45 devices with extended scanning in xgmac_mdio works
well but fails to update device "fwnode" while registering PHYs on
MDIO bus.
This patch is based on https://www.spinics.net/lists/netdev/msg662173.html
This change will update the "fwnode" while PHYs get registered and allow
lookup for registered PHYs on MDIO bus from other drivers while probing.
Signed-off-by: Vikas Singh <vikas.si...@puresoftware.com>
---
drivers/net/phy/mdio_bus.c | 19 ++++++++++++++++++-
1 file changed, 18 insertions(+), 1 deletion(-)
diff --git a/drivers/net/phy/mdio_bus.c b/drivers/net/phy/mdio_bus.c
index 46b3370..7275eff 100644
--- a/drivers/net/phy/mdio_bus.c
+++ b/drivers/net/phy/mdio_bus.c
@@ -447,8 +447,25 @@ static void of_mdiobus_link_mdiodev(struct mii_bus *bus,
struct device *dev = &mdiodev->dev;
struct device_node *child;
- if (dev->of_node || !bus->dev.of_node)
+ if (dev->of_node || !bus->dev.of_node) {
+ /* Checking for acpi node, before returning */
+ struct fwnode_handle *fwnode;
+
+ /* Set the device firmware node to look for child nodes */
+ bus->dev.fwnode = bus->parent->fwnode;
+
+ device_for_each_child_node(&bus->dev, fwnode) {
+ int addr;
+
+ if (fwnode_property_read_u32(fwnode, "reg", &addr))
+ continue;
+ if (addr == mdiodev->addr) {
+ dev->fwnode = fwnode;
+ break;
+ }
+ }
return;
+ }
for_each_available_child_of_node(bus->dev.of_node, child) {
int addr;
--
2.7.4
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