linux-kernel - [PATCH v3 5/6] net: dsa: lantiq_gswip: support standard MDIO node name

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Message-ID: <3c6ac3cc638a4ebfcefbeeb85f36e5c6f27f347a.1756472076.git.daniel@makrotopia.org>
Date: Fri, 29 Aug 2025 14:02:27 +0100
From: Daniel Golle <daniel@...rotopia.org>
To: Andrew Lunn <andrew@...n.ch>, Vladimir Oltean <olteanv@...il.com>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	Hauke Mehrtens <hauke@...ke-m.de>,
	Russell King <linux@...linux.org.uk>, linux-kernel@...r.kernel.org,
	netdev@...r.kernel.org
Cc: Andreas Schirm <andreas.schirm@...mens.com>,
	Lukas Stockmann <lukas.stockmann@...mens.com>,
	Alexander Sverdlin <alexander.sverdlin@...mens.com>,
	Peter Christen <peter.christen@...mens.com>,
	Avinash Jayaraman <ajayaraman@...linear.com>,
	Bing tao Xu <bxu@...linear.com>, Liang Xu <lxu@...linear.com>,
	Juraj Povazanec <jpovazanec@...linear.com>,
	"Fanni (Fang-Yi) Chan" <fchan@...linear.com>,
	"Benny (Ying-Tsan) Weng" <yweng@...linear.com>,
	"Livia M. Rosu" <lrosu@...linear.com>,
	John Crispin <john@...ozen.org>
Subject: [PATCH v3 5/6] net: dsa: lantiq_gswip: support standard MDIO node
 name

Instead of matching against the child node's compatible string also
support locating the node of the device tree node of the MDIO bus
in the standard way by referencing the node name ("mdio").

Signed-off-by: Daniel Golle <daniel@...rotopia.org>
Reviewed-by: Andrew Lunn <andrew@...n.ch>
Reviewed-by: Alexander Sverdlin <alexander.sverdlin@...mens.com>
Reviewed-by: Hauke Mehrtens <hauke@...ke-m.de>
---
v3: no changes
v2: no changes

 drivers/net/dsa/lantiq/lantiq_gswip.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/net/dsa/lantiq/lantiq_gswip.c b/drivers/net/dsa/lantiq/lantiq_gswip.c
index 57441afa12e4..2124ee061d05 100644
--- a/drivers/net/dsa/lantiq/lantiq_gswip.c
+++ b/drivers/net/dsa/lantiq/lantiq_gswip.c
@@ -286,6 +286,9 @@ static int gswip_mdio(struct gswip_priv *priv)
 	int err = 0;
 
 	mdio_np = of_get_compatible_child(switch_np, "lantiq,xrx200-mdio");
+	if (!mdio_np)
+		mdio_np = of_get_child_by_name(switch_np, "mdio");
+
 	if (!of_device_is_available(mdio_np))
 		goto out_put_node;
 
-- 
2.51.0