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Message-Id: <351cce38d1c572d8b171044f2856c7fae9f89cbc.1561450696.git.joabreu@synopsys.com>
Date: Tue, 25 Jun 2019 10:19:08 +0200
From: Jose Abreu <Jose.Abreu@...opsys.com>
To: linux-kernel@...r.kernel.org, netdev@...r.kernel.org
Cc: Jose Abreu <Jose.Abreu@...opsys.com>,
Joao Pinto <Joao.Pinto@...opsys.com>,
"David S . Miller" <davem@...emloft.net>,
Giuseppe Cavallaro <peppe.cavallaro@...com>,
Alexandre Torgue <alexandre.torgue@...com>
Subject: [PATCH net-next] net: stmmac: Fix the case when PHY handle is not present
Some DT bindings do not have the PHY handle. Let's fallback to manually
discovery in case phylink_of_phy_connect() fails.
Reported-by: Katsuhiro Suzuki <katsuhiro@...suster.net>
Fixes: 74371272f97f ("net: stmmac: Convert to phylink and remove phylib logic")
Signed-off-by: Jose Abreu <joabreu@...opsys.com>
Cc: Joao Pinto <jpinto@...opsys.com>
Cc: David S. Miller <davem@...emloft.net>
Cc: Giuseppe Cavallaro <peppe.cavallaro@...com>
Cc: Alexandre Torgue <alexandre.torgue@...com>
---
Hello Katsuhiro,
Can you please test this patch ?
---
drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index a48751989fa6..f4593d2d9d20 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -950,9 +950,12 @@ static int stmmac_init_phy(struct net_device *dev)
node = priv->plat->phylink_node;
- if (node) {
+ if (node)
ret = phylink_of_phy_connect(priv->phylink, node, 0);
- } else {
+
+ /* Some DT bindings do not set-up the PHY handle. Let's try to
+ * manually parse it */
+ if (!node || ret) {
int addr = priv->plat->phy_addr;
struct phy_device *phydev;
--
2.7.4
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