[PATCH net-next 1/2] dt-bindings: net: airoha,en8811h: Add en8811h serdes polarity

[Eric Woudstra <ericwouds@gmail.com>]

The en8811h phy can be set with serdes polarity reversed on rx and/or tx.

Changed from rfc patch:

Explicitly say what -rx and -tx means.

Signed-off-by: Eric Woudstra <ericwouds@gmail.com>
---
 .../bindings/net/airoha,en8811h.yaml          | 44 +++++++++++++++++++
 1 file changed, 44 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/net/airoha,en8811h.yaml

diff --git a/Documentation/devicetree/bindings/net/airoha,en8811h.yaml b/Documentation/devicetree/bindings/net/airoha,en8811h.yaml
new file mode 100644
index 000000000000..99898e2bed64
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/airoha,en8811h.yaml
@@ -0,0 +1,44 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/airoha,en8811h.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Airoha EN8811H PHY
+
+maintainers:
+  - Eric Woudstra <ericwouds@gmail.com>
+
+description:
+  Bindings for Airoha EN8811H PHY
+
+allOf:
+  - $ref: ethernet-phy.yaml#
+
+properties:
+  airoha,pnswap-rx:
+    type: boolean
+    description:
+      Reverse rx polarity of the SERDES. This is the receiving
+      side of the lines from the MAC towards the EN881H.
+
+
+  airoha,pnswap-tx:
+    type: boolean
+    description:
+      Reverse tx polarity of SERDES. This is the transmitting
+      side of the lines from EN8811H towards the MAC.
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    mdio {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        ethphy1: ethernet-phy@1 {
+                reg = <1>;
+                airoha,pnswap-rx;
+        };
+    };
-- 
2.42.1