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

On Tue, Mar 03, 2026 at 02:54:26PM +0100, Romain Gantois wrote:
> 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>

Acked-by: Conor Dooley <conor.dooley@microchip.com>
pw-bot: not-applicable