[PATCH net-next v4 2/9] dt-bindings: net: lan9645x: add LAN9645X switch bindings

[Jens Emil Schulz Østergaard]

Add bindings for LAN9645X switch. We use a fallback compatible for the
smallest SKU microchip,lan96455s-switch.

Reviewed-by: Steen Hegelund <Steen.Hegelund@xxxxxxxxxxxxx>
Signed-off-by: Jens Emil Schulz Østergaard <jensemil.schulzostergaard@xxxxxxxxxxxxx>
Reviewed-by: Rob Herring (Arm) <robh@xxxxxxxxxx>
---
Changes in v4:
- No changes.

Changes in v3:
- remove additionalProperties: true
- remove unnecessary | from description
- change top level $ref to dsa.yaml#/$defs/ethernet-ports
- use ethernet-ports and ethernet-port
- move ethernet-ports under properties instead of patternProperties
- move unevaluatedProperties: false after $ref
- update example to use ethernet-ports and ethernet-port

Changes in v2:
- rename file to microchip,lan96455s-switch.yaml
- remove led vendor property
- add {rx,tx}-internal-delay-ps for rgmii delay
- remove labels from example
- remove container node from example
---
 .../net/dsa/microchip,lan96455s-switch.yaml        | 111 +++++++++++++++++++++
 MAINTAINERS                                        |   1 +
 2 files changed, 112 insertions(+)

diff --git a/Documentation/devicetree/bindings/net/dsa/microchip,lan96455s-switch.yaml b/Documentation/devicetree/bindings/net/dsa/microchip,lan96455s-switch.yaml
new file mode 100644
index 000000000000..043fb48922b4
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/dsa/microchip,lan96455s-switch.yaml
@@ -0,0 +1,111 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/dsa/microchip,lan96455s-switch.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Microchip LAN9645x Ethernet switch
+
+maintainers:
+  - Jens Emil Schulz Østergaard <jensemil.schulzostergaard@xxxxxxxxxxxxx>
+
+description:
+  The LAN9645x switch is a multi-port Gigabit AVB/TSN Ethernet switch with
+  five integrated 10/100/1000Base-T PHYs. In addition to the integrated PHYs,
+  it supports up to 2 RGMII/RMII, up to 2 BASE-X/SERDES/2.5GBASE-X and one
+  Quad-SGMII interfaces.
+
+properties:
+  compatible:
+    oneOf:
+      - enum:
+          - microchip,lan96455s-switch
+      - items:
+          - enum:
+              - microchip,lan96455f-switch
+              - microchip,lan96457f-switch
+              - microchip,lan96459f-switch
+              - microchip,lan96457s-switch
+              - microchip,lan96459s-switch
+          - const: microchip,lan96455s-switch
+
+  reg:
+    maxItems: 1
+
+  ethernet-ports:
+    type: object
+    patternProperties:
+      "^ethernet-port@[0-8]$":
+        type: object
+        description: Ethernet switch ports
+
+        $ref: dsa-port.yaml#
+        unevaluatedProperties: false
+
+        properties:
+          rx-internal-delay-ps:
+            const: 2000
+
+          tx-internal-delay-ps:
+            const: 2000
+
+$ref: dsa.yaml#/$defs/ethernet-ports
+
+required:
+  - compatible
+  - reg
+  - ethernet-ports
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    ethernet-switch@4000 {
+        compatible = "microchip,lan96459f-switch", "microchip,lan96455s-switch";
+        reg = <0x4000 0x244>;
+
+        ethernet-ports {
+            #address-cells = <1>;
+            #size-cells = <0>;
+
+            ethernet-port@0 {
+                reg = <0>;
+                phy-mode = "gmii";
+                phy-handle = <&cuphy0>;
+            };
+
+            ethernet-port@1 {
+                reg = <1>;
+                phy-mode = "gmii";
+                phy-handle = <&cuphy1>;
+            };
+
+            ethernet-port@2 {
+                reg = <2>;
+                phy-mode = "gmii";
+                phy-handle = <&cuphy2>;
+            };
+
+            ethernet-port@3 {
+                reg = <3>;
+                phy-mode = "gmii";
+                phy-handle = <&cuphy3>;
+            };
+
+            ethernet-port@7 {
+                reg = <7>;
+                phy-mode = "rgmii";
+                ethernet = <&cpu_host_port>;
+                rx-internal-delay-ps = <2000>;
+                tx-internal-delay-ps = <2000>;
+
+                fixed-link {
+                    speed = <1000>;
+                    full-duplex;
+                    pause;
+                };
+            };
+        };
+    };
+...
+
diff --git a/MAINTAINERS b/MAINTAINERS
index aa4eef364958..1a53d3f0055c 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -17413,6 +17413,7 @@ M:	Jens Emil Schulz Østergaard <jensemil.schulzostergaard@xxxxxxxxxxxxx>
 M:	UNGLinuxDriver@xxxxxxxxxxxxx
 L:	netdev@xxxxxxxxxxxxxxx
 S:	Maintained
+F:	Documentation/devicetree/bindings/net/dsa/microchip,lan96455s-switch.yaml
 F:	include/linux/dsa/lan9645x.h
 F:	net/dsa/tag_lan9645x.c
 

-- 
2.52.0