netdev - [PATCH net-next 09/13] net: dsa: lantiq_gswip: add vendor property to setup MII refclk output

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <968a687879640746bc20e14e7a7d6f6b9da936da.1761324950.git.daniel@makrotopia.org>
Date: Fri, 24 Oct 2025 18:03:50 +0100
From: Daniel Golle <daniel@...rotopia.org>
To: Hauke Mehrtens <hauke@...ke-m.de>, 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>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>, Simon Horman <horms@...nel.org>,
	Russell King <linux@...linux.org.uk>, netdev@...r.kernel.org,
	devicetree@...r.kernel.org, linux-kernel@...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 net-next 09/13] net: dsa: lantiq_gswip: add vendor property
 to setup MII refclk output

Read boolean Device Tree property "maxlinear,rmii-refclk-out" and switch
the RMII reference clock to be a clock output rather than an input if it
is set.

Signed-off-by: Daniel Golle <daniel@...rotopia.org>
---
 drivers/net/dsa/lantiq/lantiq_gswip_common.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/net/dsa/lantiq/lantiq_gswip_common.c b/drivers/net/dsa/lantiq/lantiq_gswip_common.c
index d5a13a7ee1c1..8ffd61693f3a 100644
--- a/drivers/net/dsa/lantiq/lantiq_gswip_common.c
+++ b/drivers/net/dsa/lantiq/lantiq_gswip_common.c
@@ -1441,6 +1441,10 @@ static void gswip_phylink_mac_config(struct phylink_config *config,
 		return;
 	}
 
+	if (of_property_read_bool(dp->dn, "maxlinear,rmii-refclk-out") &&
+	    !(miicfg & GSWIP_MII_CFG_MODE_RGMII))
+		miicfg |= GSWIP_MII_CFG_RMII_CLK;
+
 	gswip_mii_mask_cfg(priv,
 			   GSWIP_MII_CFG_MODE_MASK | GSWIP_MII_CFG_RMII_CLK |
 			   GSWIP_MII_CFG_RGMII_IBS | GSWIP_MII_CFG_LDCLKDIS,
-- 
2.51.0