For DSA support we need to find MAC node by phandle from the switch port
node. So, provide of_find_eth_device_by_node() to solve this task.
Signed-off-by: Oleksij Rempel <o.rempel@xxxxxxxxxxxxxx>
---
include/net.h | 1 +
net/eth.c | 16 ++++++++++++++++
2 files changed, 17 insertions(+)
diff --git a/include/net.h b/include/net.h
index ca9b6cd61e..8013f79c2e 100644
--- a/include/net.h
+++ b/include/net.h
@@ -97,6 +97,7 @@ int eth_open(struct eth_device *edev);
void eth_close(struct eth_device *edev);
int eth_send(struct eth_device *edev, void *packet, int length); /* Send a packet */
int eth_rx(void); /* Check for received packets */
+struct eth_device *of_find_eth_device_by_node(struct device_node *np);
/* associate a MAC address to a ethernet device. Should be called by
* board code for boards which store their MAC address at some unusual
diff --git a/net/eth.c b/net/eth.c
index 762c5dfb8a..e9e53341f3 100644
--- a/net/eth.c
+++ b/net/eth.c
@@ -506,6 +506,22 @@ void led_trigger_network(enum led_trigger trigger)
led_trigger(LED_TRIGGER_NET_TXRX, TRIGGER_FLASH);
}
+struct eth_device *of_find_eth_device_by_node(struct device_node *np)
+{
+ struct eth_device *edev;
+ int ret;
+
+ ret = of_device_ensure_probed(np);
+ if (ret)
+ return NULL;
+
+ list_for_each_entry(edev, &netdev_list, list)
+ if (edev->parent->device_node == np)
+ return edev;
+ return NULL;
+}
+EXPORT_SYMBOL(of_find_eth_device_by_node);
+
static int of_populate_ethaddr(void)
{
char str[sizeof("xx:xx:xx:xx:xx:xx")];
--
2.30.2
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