From: Andrew Lunn <andrew@lunn.ch>
To: Romain Gantois <romain.gantois@bootlin.com>
Cc: "Russell King (Oracle)" <linux@armlinux.org.uk>,
Andrew Lunn <andrew+netdev@lunn.ch>,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Heiner Kallweit <hkallweit1@gmail.com>,
Liam Girdwood <lgirdwood@gmail.com>,
Mark Brown <broonie@kernel.org>,
Maxime Chevallier <maxime.chevallier@bootlin.com>,
Thomas Petazzoni <thomas.petazzoni@bootlin.com>,
netdev@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH net-next 0/2] net: sfp: Describe and handle regulators
Date: Wed, 4 Mar 2026 22:44:26 +0100 [thread overview]
Message-ID: <640957c8-cff7-4703-b1d1-5474c6b22cdc@lunn.ch> (raw)
In-Reply-To: <9586950.CDJkKcVGEf@fw-rgant>
> Interesting, I wasn't aware of this. I thought it was something like "being
> able to shut down the transmitter side only while waiting for a WoL packet".
That will not be reliable. INF-8074 says:
6) VeeR and VeeT may be internally connected within the SFP module.
So shutting down the transmit regulator might end up putting double
load on the receive regulator, and the magic smoke getting out, if the
design does not take this into account.
Andrew
prev parent reply other threads:[~2026-03-04 21:44 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-03 13:54 [PATCH net-next 0/2] net: sfp: Describe and handle regulators Romain Gantois
2026-03-03 13:54 ` [PATCH net-next 1/2] dt-bindings: net: sff,sfp: Describe power supply pins Romain Gantois
2026-03-03 18:37 ` Conor Dooley
2026-03-03 13:54 ` [PATCH net-next 2/2] net: sfp: manage receiver and transmitter regulators Romain Gantois
2026-03-03 14:22 ` Mark Brown
2026-03-03 14:40 ` Romain Gantois
2026-03-03 15:12 ` Russell King (Oracle)
2026-03-03 15:12 ` Russell King (Oracle)
2026-03-03 15:14 ` Mark Brown
2026-03-03 15:25 ` Russell King (Oracle)
2026-03-03 17:31 ` Mark Brown
2026-03-03 18:32 ` Russell King (Oracle)
2026-03-06 19:20 ` Mark Brown
2026-03-20 9:39 ` Romain Gantois
2026-03-20 14:45 ` Russell King (Oracle)
2026-03-25 9:40 ` Romain Gantois
2026-03-20 9:55 ` Romain Gantois
2026-03-04 21:38 ` Andrew Lunn
2026-03-06 16:19 ` Mark Brown
2026-03-03 15:10 ` [PATCH net-next 0/2] net: sfp: Describe and handle regulators Russell King (Oracle)
2026-03-03 15:54 ` Romain Gantois
2026-03-03 17:19 ` Russell King (Oracle)
2026-03-04 21:44 ` Andrew Lunn [this message]
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