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authorDavid S. Miller <davem@davemloft.net>2020-01-19 22:10:04 +0100
committerDavid S. Miller <davem@davemloft.net>2020-01-19 22:10:04 +0100
commitb3f7e3f23a763ccaae7b52d88d2c91e66c80d406 (patch)
treee00e90eb161305ed9895315ba12e30ac17de9523 /drivers/net/ethernet/cadence
parentMerge branch 'mlxsw-Add-tunnel-devlink-trap-support' (diff)
parentMerge tag 'riscv/for-v5.5-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux (diff)
downloadlinux-dev-b3f7e3f23a763ccaae7b52d88d2c91e66c80d406.tar.xz
linux-dev-b3f7e3f23a763ccaae7b52d88d2c91e66c80d406.zip
Merge ra.kernel.org:/pub/scm/linux/kernel/git/netdev/net
Diffstat (limited to 'drivers/net/ethernet/cadence')
-rw-r--r--drivers/net/ethernet/cadence/macb_main.c30
1 files changed, 17 insertions, 13 deletions
diff --git a/drivers/net/ethernet/cadence/macb_main.c b/drivers/net/ethernet/cadence/macb_main.c
index 1c547ee0d444..7a2fe63d1136 100644
--- a/drivers/net/ethernet/cadence/macb_main.c
+++ b/drivers/net/ethernet/cadence/macb_main.c
@@ -650,21 +650,24 @@ static const struct phylink_mac_ops macb_phylink_ops = {
.mac_link_up = macb_mac_link_up,
};
+static bool macb_phy_handle_exists(struct device_node *dn)
+{
+ dn = of_parse_phandle(dn, "phy-handle", 0);
+ of_node_put(dn);
+ return dn != NULL;
+}
+
static int macb_phylink_connect(struct macb *bp)
{
+ struct device_node *dn = bp->pdev->dev.of_node;
struct net_device *dev = bp->dev;
struct phy_device *phydev;
int ret;
- if (bp->pdev->dev.of_node &&
- of_parse_phandle(bp->pdev->dev.of_node, "phy-handle", 0)) {
- ret = phylink_of_phy_connect(bp->phylink, bp->pdev->dev.of_node,
- 0);
- if (ret) {
- netdev_err(dev, "Could not attach PHY (%d)\n", ret);
- return ret;
- }
- } else {
+ if (dn)
+ ret = phylink_of_phy_connect(bp->phylink, dn, 0);
+
+ if (!dn || (ret && !macb_phy_handle_exists(dn))) {
phydev = phy_find_first(bp->mii_bus);
if (!phydev) {
netdev_err(dev, "no PHY found\n");
@@ -673,10 +676,11 @@ static int macb_phylink_connect(struct macb *bp)
/* attach the mac to the phy */
ret = phylink_connect_phy(bp->phylink, phydev);
- if (ret) {
- netdev_err(dev, "Could not attach to PHY (%d)\n", ret);
- return ret;
- }
+ }
+
+ if (ret) {
+ netdev_err(dev, "Could not attach PHY (%d)\n", ret);
+ return ret;
}
phylink_start(bp->phylink);