linux-kernel - [PATCH] net: sfp: add potron quirk to the H-COM SPP425H-GAB4 SFP+ Stick

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Message-ID: <20260113232957.609642-1-someguy@effective-light.com>
Date: Tue, 13 Jan 2026 18:29:57 -0500
From: Hamza Mahfooz <someguy@...ective-light.com>
To: netdev@...r.kernel.org
Cc: Hamza Mahfooz <someguy@...ective-light.com>,
	stable@...r.kernel.org,
	Russell King <linux@...linux.org.uk>,
	Andrew Lunn <andrew@...n.ch>,
	Heiner Kallweit <hkallweit1@...il.com>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>,
	linux-kernel@...r.kernel.org
Subject: [PATCH] net: sfp: add potron quirk to the H-COM SPP425H-GAB4 SFP+ Stick

This is another one of those XGSPON ONU sticks that's using the
X-ONU-SFPP internally, thus it also requires the potron quirk to avoid tx
faults. So, add an entry for it in sfp_quirks[].

Cc: stable@...r.kernel.org
Signed-off-by: Hamza Mahfooz <someguy@...ective-light.com>
---
 drivers/net/phy/sfp.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/phy/sfp.c b/drivers/net/phy/sfp.c
index 84bef5099dda..47f095bd91ce 100644
--- a/drivers/net/phy/sfp.c
+++ b/drivers/net/phy/sfp.c
@@ -519,6 +519,8 @@ static const struct sfp_quirk sfp_quirks[] = {
 
 	SFP_QUIRK_F("HALNy", "HL-GSFP", sfp_fixup_halny_gsfp),
 
+	SFP_QUIRK_F("H-COM", "SPP425H-GAB4", sfp_fixup_potron),
+
 	// HG MXPD-483II-F 2.5G supports 2500Base-X, but incorrectly reports
 	// 2600MBd in their EERPOM
 	SFP_QUIRK_S("HG GENUINE", "MXPD-483II", sfp_quirk_2500basex),
-- 
2.52.0