net: sfp: extend Potron XGSPON quirk to cover additional EEPROM variant

[ Upstream commit 71cfa7c ]

Some Potron SFP+ XGSPON ONU sticks are shipped with different EEPROM
vendor ID and vendor name strings, but are otherwise functionally
identical to the existing "Potron SFP+ XGSPON ONU Stick" handled by
sfp_quirk_potron().

These modules, including units distributed under the "Better Internet"
branding, use the same UART pin assignment and require the same
TX_FAULT/LOS behaviour and boot delay. Re-use the existing Potron
quirk for this EEPROM variant.

Signed-off-by: Marcus Hughes <marcus.hughes@betterinternet.ltd>
Link: https://patch.msgid.link/20251207210355.333451-1-marcus.hughes@betterinternet.ltd
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

Author: MshBidb

drivers/net/phy/sfp.c

@@ -497,6 +497,8 @@ static const struct sfp_quirk sfp_quirks[] = {
 	SFP_QUIRK("ALCATELLUCENT", "3FE46541AA", sfp_quirk_2500basex,
 		  sfp_fixup_nokia),
 
+	SFP_QUIRK_F("BIDB", "X-ONU-SFPP", sfp_fixup_potron),
+
 	// FLYPRO SFP-10GT-CS-30M uses Rollball protocol to talk to the PHY.
 	SFP_QUIRK_F("FLYPRO", "SFP-10GT-CS-30M", sfp_fixup_rollball),