From: Jose Abreu <Jose.Abreu@synopsys.com>
To: linux-kernel@vger.kernel.org, netdev@vger.kernel.org
Cc: Jose Abreu <Jose.Abreu@synopsys.com>,
Joao Pinto <Joao.Pinto@synopsys.com>,
"David S . Miller" <davem@davemloft.net>,
Giuseppe Cavallaro <peppe.cavallaro@st.com>,
Alexandre Torgue <alexandre.torgue@st.com>,
Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Subject: [PATCH net-next v2] net: stmmac: Fix case when PHY handle is not present
Date: Fri, 28 Jun 2019 09:25:07 +0200 [thread overview]
Message-ID: <654cfe790807c6dfcc69c610c9692efb8c9a6179.1561706654.git.joabreu@synopsys.com> (raw)
Some DT bindings do not have the PHY handle. Let's fallback to manually
discovery in case phylink_of_phy_connect() fails.
Changes from v1:
- Fixup comment style (Sergei)
Fixes: 74371272f97f ("net: stmmac: Convert to phylink and remove phylib logic")
Reported-by: Katsuhiro Suzuki <katsuhiro@katsuster.net>
Tested-by: Katsuhiro Suzuki <katsuhiro@katsuster.net>
Signed-off-by: Jose Abreu <joabreu@synopsys.com>
Cc: Joao Pinto <jpinto@synopsys.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Cc: Alexandre Torgue <alexandre.torgue@st.com>
Cc: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
---
drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 8f5ebd51859e..91f24b63ea16 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -953,9 +953,13 @@ 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
next reply other threads:[~2019-06-28 7:25 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-28 7:25 Jose Abreu [this message]
2019-06-28 16:19 ` [PATCH net-next v2] net: stmmac: Fix case when PHY handle is not present David Miller
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