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From:   Stefan Riedmueller <s.riedmueller@phytec.de>
To:     Fugang Duan <fugang.duan@nxp.com>
Cc:     "David S . Miller" <davem@davemloft.net>,
        Jakub Kicinski <kuba@kernel.org>, netdev@vger.kernel.org,
        linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
        Christian Hemp <c.hemp@phytec.de>,
        Stefan Riedmueller <s.riedmueller@phytec.de>
Subject: [PATCH] net: fec: Keep device numbering consistent with datasheet
Date:   Wed, 23 Sep 2020 16:25:28 +0200
Message-Id: <20200923142528.303730-1-s.riedmueller@phytec.de>
MIME-Version: 1.0
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From: Christian Hemp <c.hemp@phytec.de>

Make use of device tree alias for device enumeration to keep the device
order consistent with the naming in the datasheet.

Otherwise for the i.MX 6UL/ULL the ENET1 interface is enumerated as eth1
and ENET2 as eth0.

Signed-off-by: Christian Hemp <c.hemp@phytec.de>
Signed-off-by: Stefan Riedmueller <s.riedmueller@phytec.de>
---
 drivers/net/ethernet/freescale/fec=5Fmain.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/net/ethernet/freescale/fec=5Fmain.c b/drivers/net/ethe=
rnet/freescale/fec=5Fmain.c
index fb37816a74db..97dd41bed70a 100644
--- a/drivers/net/ethernet/freescale/fec=5Fmain.c
+++ b/drivers/net/ethernet/freescale/fec=5Fmain.c
@@ -3504,6 +3504,7 @@ fec=5Fprobe(struct platform=5Fdevice *pdev)
 	char irq=5Fname[8];
 	int irq=5Fcnt;
 	struct fec=5Fdevinfo *dev=5Finfo;
+	int eth=5Fid;
=20
 	fec=5Fenet=5Fget=5Fqueue=5Fnum(pdev, &num=5Ftx=5Fqs, &num=5Frx=5Fqs);
=20
@@ -3691,6 +3692,10 @@ fec=5Fprobe(struct platform=5Fdevice *pdev)
=20
 	ndev->max=5Fmtu =3D PKT=5FMAXBUF=5FSIZE - ETH=5FHLEN - ETH=5FFCS=5FLEN;
=20
+	eth=5Fid =3D of=5Falias=5Fget=5Fid(pdev->dev.of=5Fnode, "ethernet");
+	if (eth=5Fid >=3D 0)
+		sprintf(ndev->name, "eth%d", eth=5Fid);
+
 	ret =3D register=5Fnetdev(ndev);
 	if (ret)
 		goto failed=5Fregister;
--=20
2.25.1