[v7,net-next,09/10] dt-bindings: net: add generic ethernet-switch-port binding

Commit Message

Colin Foster Jan. 12, 2023, 5:56 p.m. UTC

The dsa-port.yaml binding had several references that can be common to all
ethernet ports, not just dsa-specific ones. Break out the generic bindings
to ethernet-switch-port.yaml they can be used by non-dsa drivers.

Signed-off-by: Colin Foster <[e-mail]>
Suggested-by: Vladimir Oltean <[e-mail]>
Reviewed-by: Florian Fainelli <[e-mail]>
Reviewed-by: Rob Herring <[e-mail]>
---

v6 -> v7
  * Update Ethernet switch port description to have meaning
  * Update DSA switch port description to suggest it has additional
    features

v5 -> v6
  * Minor change to fix conflict with the removal of "Device Tree
    Binding" in the title line

v4 -> v5
  * Add Rob Reviewed tag
  * Change Vivien to Vladimir to match MAINTAINERS
  * Capitalize all words in title line (Generic DSA Switch Port)
  * Add better description of an Ethernet switch port

v3 -> v4
  * Add Florian Reviewed tag

v2 -> v3
  * Change dsa-port title from "DSA Switch port Device Tree Bindings"
    to "Generic DSA Switch port"
  * Add reference to ethernet-switch-port.yaml# in dsa-port.yaml
  * Change title of ethernet-switch-port.yaml from "Ethernet Switch
    port Device Tree Bindings" to "Generic Ethernet Switch port"
  * Remove most properties from ethernet-switch-port.yaml. They're
    all in ethernet-controller, and are all allowed.
  * ethernet-switch.yaml now only references ethernet-switch-port.yaml#
    under the port node.

v1 -> v2
  * Remove accidental addition of
    "$ref: /schemas/net/ethernet-switch-port.yaml" which should be kept
    out of dsa-port so that it doesn't get referenced multiple times
    through both ethernet-switch and dsa-port.

---
 .../devicetree/bindings/net/dsa/dsa-port.yaml | 28 ++++---------------
 .../bindings/net/ethernet-switch-port.yaml    | 26 +++++++++++++++++
 .../bindings/net/ethernet-switch.yaml         |  6 +---
 MAINTAINERS                                   |  1 +
 4 files changed, 33 insertions(+), 28 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/net/ethernet-switch-port.yaml

Patch

diff --git a/Documentation/devicetree/bindings/net/dsa/dsa-port.yaml b/Documentation/devicetree/bindings/net/dsa/dsa-port.yaml
index fb338486ce85..480120469953 100644
--- a/Documentation/devicetree/bindings/net/dsa/dsa-port.yaml
+++ b/Documentation/devicetree/bindings/net/dsa/dsa-port.yaml
@@ -4,7 +4,7 @@ 
 $id: http://devicetree.org/schemas/net/dsa/dsa-port.yaml#
 $schema: http://devicetree.org/meta-schemas/core.yaml#
 
-title: Ethernet Switch port
+title: Generic DSA Switch Port
 
 maintainers:
   - Andrew Lunn <[e-mail]>
@@ -12,10 +12,11 @@  maintainers:
   - Vladimir Oltean <[e-mail]>
 
 description:
-  Ethernet switch port Description
+  A DSA switch port is a component of a switch that manages one MAC, and can
+  pass Ethernet frames. It can act as a stanadard Ethernet switch port, or have
+  DSA-specific functionality.
 
-allOf:
-  - $ref: /schemas/net/ethernet-controller.yaml#
+$ref: /schemas/net/ethernet-switch-port.yaml#
 
 properties:
   reg:
@@ -58,25 +59,6 @@  properties:
       - rtl8_4t
       - seville
 
-  phy-handle: true
-
-  phy-mode: true
-
-  fixed-link: true
-
-  mac-address: true
-
-  sfp: true
-
-  managed: true
-
-  rx-internal-delay-ps: true
-
-  tx-internal-delay-ps: true
-
-required:
-  - reg
-
 # CPU and DSA ports must have phylink-compatible link descriptions
 if:
   oneOf:
diff --git a/Documentation/devicetree/bindings/net/ethernet-switch-port.yaml b/Documentation/devicetree/bindings/net/ethernet-switch-port.yaml
new file mode 100644
index 000000000000..d5cf7e40e3c3
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/ethernet-switch-port.yaml
@@ -0,0 +1,26 @@ 
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/ethernet-switch-port.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Generic Ethernet Switch Port
+
+maintainers:
+  - Andrew Lunn <[e-mail]>
+  - Florian Fainelli <[e-mail]>
+  - Vladimir Oltean <[e-mail]>
+
+description:
+  An Ethernet switch port is a component of a switch that manages one MAC, and
+  can pass Ethernet frames.
+
+$ref: ethernet-controller.yaml#
+
+properties:
+  reg:
+    description: Port number
+
+additionalProperties: true
+
+...
diff --git a/Documentation/devicetree/bindings/net/ethernet-switch.yaml b/Documentation/devicetree/bindings/net/ethernet-switch.yaml
index 2466d05f9a6f..a04f8ef744aa 100644
--- a/Documentation/devicetree/bindings/net/ethernet-switch.yaml
+++ b/Documentation/devicetree/bindings/net/ethernet-switch.yaml
@@ -40,10 +40,6 @@  patternProperties:
         type: object
         description: Ethernet switch ports
 
-        $ref: ethernet-controller.yaml#
-
-        additionalProperties: true
-
 oneOf:
   - required:
       - ports
@@ -60,7 +56,7 @@  $defs:
     patternProperties:
       "^(ethernet-)?port@[0-9]+$":
         description: Ethernet switch ports
-        $ref: ethernet-controller.yaml#
+        $ref: ethernet-switch-port.yaml#
         unevaluatedProperties: false
 
 ...
diff --git a/MAINTAINERS b/MAINTAINERS
index b582e0835b46..efc9a12b6230 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -14542,6 +14542,7 @@  M:	Florian Fainelli <[e-mail]>
 M:	Vladimir Oltean <[e-mail]>
 S:	Maintained
 F:	Documentation/devicetree/bindings/net/dsa/
+F:	Documentation/devicetree/bindings/net/ethernet-switch-port.yaml
 F:	Documentation/devicetree/bindings/net/ethernet-switch.yaml
 F:	drivers/net/dsa/
 F:	include/linux/dsa/