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From:   Bartosz Golaszewski <brgl@bgdev.pl>
To:     Grygorii Strashko <grygorii.strashko@ti.com>,
        "David S . Miller" <davem@davemloft.net>,
        Florian Fainelli <f.fainelli@gmail.com>,
        Dan Carpenter <dan.carpenter@oracle.com>,
        Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org>,
        Rob Herring <robh@kernel.org>, Lukas Wunner <lukas@wunner.de>,
        Kevin Hilman <khilman@kernel.org>,
        David Lechner <david@lechnology.com>,
        Sekhar Nori <nsekhar@ti.com>, Andrew Lunn <andrew@lunn.ch>
Cc:     linux-omap@vger.kernel.org, netdev@vger.kernel.org,
        linux-kernel@vger.kernel.org,
        Bartosz Golaszewski <bgolaszewski@baylibre.com>
Subject: [PATCH 3/3] net: davinci_emac: match the mdio device against its compatible if possible
Date:   Tue, 19 Jun 2018 18:09:50 +0200
Message-Id: <20180619160950.6283-4-brgl@bgdev.pl>
In-Reply-To: <20180619160950.6283-1-brgl@bgdev.pl>
References: <20180619160950.6283-1-brgl@bgdev.pl>
Sender: linux-kernel-owner@vger.kernel.org
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From: Bartosz Golaszewski <bgolaszewski@baylibre.com>

Device tree based systems without of_dev_auxdata will have the mdio
device named differently than "davinci_mdio(.0)". In this case use the
device's compatible string for matching.

Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
---
 drivers/net/ethernet/ti/davinci_emac.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/net/ethernet/ti/davinci_emac.c b/drivers/net/ethernet/ti/davinci_emac.c
index a1a6445b5a7e..c28a35bb852f 100644
--- a/drivers/net/ethernet/ti/davinci_emac.c
+++ b/drivers/net/ethernet/ti/davinci_emac.c
@@ -1387,6 +1387,10 @@ static int emac_devioctl(struct net_device *ndev, struct ifreq *ifrq, int cmd)
 
 static int match_first_device(struct device *dev, void *data)
 {
+	if (dev->of_node)
+		return of_device_is_compatible(dev->of_node,
+					       "ti,davinci_mdio");
+
 	return !strncmp(dev_name(dev), "davinci_mdio", 12);
 }
 
-- 
2.17.1