netdev - [PATCH 2/2] ftgmac100: Make the MDIO bus a child of the ethernet device

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Message-ID: <1500879547.10674.63.camel@kernel.crashing.org>
Date:   Mon, 24 Jul 2017 16:59:07 +1000
From:   Benjamin Herrenschmidt <benh@...nel.crashing.org>
To:     netdev@...r.kernel.org
Cc:     Joel Stanley <joel.stanley@....ibm.com>
Subject: [PATCH 2/2] ftgmac100: Make the MDIO bus a child of the ethernet
 device

Populate mii_bus->parent with our own platform device before
registering, which makes it easier to locate the MDIO bus
in sysfs when trying to diagnose problems.

Signed-off-by: Benjamin Herrenschmidt <benh@...nel.crashing.org>
---
 drivers/net/ethernet/faraday/ftgmac100.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/faraday/ftgmac100.c b/drivers/net/ethernet/faraday/ftgmac100.c
index 2b17f7023d91..fce0aa4f78b7 100644
--- a/drivers/net/ethernet/faraday/ftgmac100.c
+++ b/drivers/net/ethernet/faraday/ftgmac100.c
@@ -1682,6 +1682,7 @@ static int ftgmac100_setup_mdio(struct net_device *netdev)
 	priv->mii_bus->name = "ftgmac100_mdio";
 	snprintf(priv->mii_bus->id, MII_BUS_ID_SIZE, "%s-%d",
 		 pdev->name, pdev->id);
+	priv->mii_bus->parent = priv->dev;
 	priv->mii_bus->priv = priv->netdev;
 	priv->mii_bus->read = ftgmac100_mdiobus_read;
 	priv->mii_bus->write = ftgmac100_mdiobus_write;