[PATCH v6 3/4] dt-bindings: net: ethernet-phy: add property enet-phy-pair-polarity
From: Damien Dejean <hidden>
Date: 2026-02-07 09:25:57
Also in:
linux-devicetree, lkml
Subsystem:
ethernet phy library, networking drivers, open firmware and flattened device tree bindings, the rest · Maintainers:
Andrew Lunn, Heiner Kallweit, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
Add the property enet-phy-pair-polarity to describe the polarity of the PHY pairs. To ease PCB designs some manufacturers allow to wire the pairs with a reverse polarity and provide a way to configure it. The property 'enet-phy-pair-polarity' sets the polarity of each pair. Bit 0 to 3 configure the polarity or pairs A to D, if set to 1 the polarity is reversed for this pair. Signed-off-by: Damien Dejean <redacted> --- Documentation/devicetree/bindings/net/ethernet-phy.yaml | 8 ++++++++ 1 file changed, 8 insertions(+)
diff --git a/Documentation/devicetree/bindings/net/ethernet-phy.yaml b/Documentation/devicetree/bindings/net/ethernet-phy.yaml
index 4a27547f7d7a..21a1a63506f0 100644
--- a/Documentation/devicetree/bindings/net/ethernet-phy.yaml
+++ b/Documentation/devicetree/bindings/net/ethernet-phy.yaml@@ -132,6 +132,14 @@ properties: description: For normal (0) or reverse (1) order of the pairs (ABCD -> DCBA). + enet-phy-pair-polarity: + $ref: /schemas/types.yaml#/definitions/uint32 + maximum: 0xf + description: + A bitmap to describe pair polarity swap. Bit 0 to swap polarity of pair A, + bit 1 to swap polarity of pair B, bit 2 to swap polarity of pair C and bit + 3 to swap polarity of pair D. + eee-broken-100tx: $ref: /schemas/types.yaml#/definitions/flag description:
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2.47.3