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net: stmmac: Fix case when PHY handle is not present

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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: 74371272f9 ("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>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jose Abreu 2019-06-28 09:25:07 +02:00 committed by David S. Miller
parent ee7dd7733b
commit 42e87024f7
1 changed files with 6 additions and 2 deletions
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8
drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
View file

@ -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;