Instead of just creating a simple PHY device for every child of MDIO
bus node, add code to check if any of them have "compatible" property
set, as well as code to create a proper platform device for such
cases.
This change is useful for when MDIO bus and some of Ethernet ports are
connected to a switch or some other MDIO device that doesn't behave
like a generic PHY and can't be probed via its PHY ID.
Signed-off-by: Andrey Smirnov <andrew.smirnov@xxxxxxxxx>
---
drivers/net/phy/mdio_bus.c | 14 +++++++++++++-
1 file changed, 13 insertions(+), 1 deletion(-)
diff --git a/drivers/net/phy/mdio_bus.c b/drivers/net/phy/mdio_bus.c
index d7d6d8940..cda05afae 100644
--- a/drivers/net/phy/mdio_bus.c
+++ b/drivers/net/phy/mdio_bus.c
@@ -26,6 +26,7 @@
#include <errno.h>
#include <linux/phy.h>
#include <linux/err.h>
+#include <of_device.h>
#define DEFAULT_GPIO_RESET_ASSERT 1000 /* us */
#define DEFAULT_GPIO_RESET_DEASSERT 1000 /* us */
@@ -179,8 +180,19 @@ static int of_mdiobus_register(struct mii_bus *mdio, struct device_node *np)
/* Loop over the child nodes and register a phy_device for each one */
for_each_available_child_of_node(np, child) {
- if (!of_mdiobus_child_is_phy(child))
+ if (!of_mdiobus_child_is_phy(child)) {
+ if (of_get_property(child, "compatible", NULL)) {
+ if (!of_platform_device_create(child,
+ &mdio->dev)) {
+ dev_err(&mdio->dev,
+ "Failed to create device "
+ "for %s\n",
+ child->full_name);
+ }
+ }
+
continue;
+ }
ret = of_property_read_u32(child, "reg", &addr);
if (ret) {
--
2.17.1
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