From: Baruch Siach baruch@tkos.co.il
[ Upstream commit c4053ef322081554765e1b708d6cdd8855e1d72d ]
Without a valid of_node in struct device we can't find the mvpp2 port device by its DT node. Specifically, this breaks of_find_net_device_by_node().
For example, the Armada 8040 based Clearfog GT-8K uses Marvell 88E6141 switch connected to the &cp1_eth2 port:
&cp1_mdio { ...
switch0: switch0@4 { compatible = "marvell,mv88e6085"; ...
ports { ...
port@5 { reg = <5>; label = "cpu"; ethernet = <&cp1_eth2>; }; }; }; };
Without this patch, dsa_register_switch() returns -EPROBE_DEFER because of_find_net_device_by_node() can't find the device_node of the &cp1_eth2 device.
Reviewed-by: Andrew Lunn andrew@lunn.ch Signed-off-by: Baruch Siach baruch@tkos.co.il Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin alexander.levin@microsoft.com --- drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c index 0319ed9ef8b8..189fd1fe4ace 100644 --- a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c +++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c @@ -4694,6 +4694,7 @@ static int mvpp2_port_probe(struct platform_device *pdev, dev->min_mtu = ETH_MIN_MTU; /* 9704 == 9728 - 20 and rounding to 8 */ dev->max_mtu = MVPP2_BM_JUMBO_PKT_SIZE; + dev->dev.of_node = port_node;
/* Phylink isn't used w/ ACPI as of now */ if (port_node) {