linux-kernel - [PATCH] net: stmmac: Handle possible fixed-link with need_mdio

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Date:   Fri, 25 Aug 2017 16:42:08 +0200
From:   Corentin Labbe <clabbe.montjoie@...il.com>
To:     peppe.cavallaro@...com, alexandre.torgue@...com
Cc:     netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        Corentin Labbe <clabbe.montjoie@...il.com>
Subject: [PATCH] net: stmmac: Handle possible fixed-link with need_mdio_ids

In case of fixed link, there are no mdio node.
This patch add a test for fixed-link for bypassing MDIO node register.

Signed-off-by: Corentin Labbe <clabbe.montjoie@...il.com>
---
 drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
index a366b3747eeb..e1be5735365b 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
@@ -332,7 +332,7 @@ static int stmmac_dt_phy(struct plat_stmmacenet_data *plat,
 		mdio = false;
 	}
 
-	if (of_match_node(need_mdio_ids, np)) {
+	if (of_match_node(need_mdio_ids, np) && !of_phy_is_fixed_link(np)) {
 		plat->mdio_node = of_get_child_by_name(np, "mdio");
 	} else {
 		/**
-- 
2.13.5