Thread (23 messages) 23 messages, 5 authors, 2026-03-25
STALE97d

[PATCH net-next 1/2] dt-bindings: net: sff,sfp: Describe power supply pins

From: Romain Gantois <romain.gantois@bootlin.com>
Date: 2026-03-03 13:54:38
Also in: linux-devicetree, lkml
Subsystem: networking drivers, open firmware and flattened device tree bindings, sff/sfp/sfp+ module support, the rest · Maintainers: Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Russell King, Linus Torvalds

SFP cages and soldered-on SFF transceivers have two separate power supply
pins: one for the transmitter circuit, and one for the receiver circuit.

Describe these two pins and the regulators supplying them.

Signed-off-by: Romain Gantois <romain.gantois@bootlin.com>
---
 Documentation/devicetree/bindings/net/sff,sfp.yaml | 8 ++++++++
 1 file changed, 8 insertions(+)
diff --git a/Documentation/devicetree/bindings/net/sff,sfp.yaml b/Documentation/devicetree/bindings/net/sff,sfp.yaml
index 15616ad737f57..95729cf694a7d 100644
--- a/Documentation/devicetree/bindings/net/sff,sfp.yaml
+++ b/Documentation/devicetree/bindings/net/sff,sfp.yaml
@@ -68,6 +68,14 @@ properties:
       output gpio signal (SFP+ only), low - low Tx rate, high - high Tx rate. Must
       not be present for SFF modules
 
+  vccr-supply:
+    description:
+      Phandle to a regulator supplying the receiver power (AKA VccR) pin.
+
+  vcct-supply:
+    description:
+      Phandle to a regulator supplying the transmitter power (AKA VccT) pin.
+
 allOf:
   - if:
       properties:
-- 
2.52.0
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