[v2,net-next,5/6] dt-bindings: net: add generic ethernet-switch-port binding

Message ID 20221104045204.746124-6-colin.foster@in-advantage.com
State New
Headers
Series dt-binding preparation for ocelot switches |

Commit Message

Colin Foster Nov. 4, 2022, 4:52 a.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 <colin.foster@in-advantage.com>
Suggested-by: Vladimir Oltean <olteanv@gmail.com>
---

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 | 27 +-----------
 .../bindings/net/ethernet-switch-port.yaml    | 44 +++++++++++++++++++
 .../bindings/net/ethernet-switch.yaml         |  4 +-
 MAINTAINERS                                   |  1 +
 4 files changed, 49 insertions(+), 27 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/net/ethernet-switch-port.yaml
  

Comments

Rob Herring Nov. 4, 2022, 6:50 p.m. UTC | #1
On Thu, Nov 03, 2022 at 09:52:03PM -0700, Colin Foster wrote:
> 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 <colin.foster@in-advantage.com>
> Suggested-by: Vladimir Oltean <olteanv@gmail.com>
> ---
> 
> 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 | 27 +-----------
>  .../bindings/net/ethernet-switch-port.yaml    | 44 +++++++++++++++++++
>  .../bindings/net/ethernet-switch.yaml         |  4 +-
>  MAINTAINERS                                   |  1 +
>  4 files changed, 49 insertions(+), 27 deletions(-)
>  create mode 100644 Documentation/devicetree/bindings/net/ethernet-switch-port.yaml
> 
> diff --git a/Documentation/devicetree/bindings/net/dsa/dsa-port.yaml b/Documentation/devicetree/bindings/net/dsa/dsa-port.yaml
> index 10ad7e71097b..d97fb87cccb0 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 Device Tree Bindings
> +title: DSA Switch port Device Tree Bindings
>  
>  maintainers:
>    - Andrew Lunn <andrew@lunn.ch>
> @@ -14,13 +14,7 @@ maintainers:
>  description:
>    Ethernet switch port Description
>  
> -allOf:
> -  - $ref: /schemas/net/ethernet-controller.yaml#
> -
>  properties:
> -  reg:
> -    description: Port number
> -
>    label:
>      description:
>        Describes the label associated with this port, which will become
> @@ -57,25 +51,6 @@ properties:
>        - rtl8_4t
>        - seville
>  
> -  phy-handle: true
> -
> -  phy-mode: true
> -
> -  fixed-link: true
> -
> -  mac-address: true
> -
> -  sfp: true
> -
> -  managed: true
> -
> -  rx-internal-delay-ps: true
> -
> -  tx-internal-delay-ps: true
> -
> -required:
> -  - reg
> -
>  # CPU and DSA ports must have phylink-compatible link descriptions
>  if:
>    oneOf:
> diff --git a/Documentation/devicetree/bindings/net/ethernet-switch-port.yaml b/Documentation/devicetree/bindings/net/ethernet-switch-port.yaml
> new file mode 100644
> index 000000000000..cb1e5e12bf0a
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/net/ethernet-switch-port.yaml
> @@ -0,0 +1,44 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/net/ethernet-switch-port.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Ethernet Switch port Device Tree Bindings
> +
> +maintainers:
> +  - Andrew Lunn <andrew@lunn.ch>
> +  - Florian Fainelli <f.fainelli@gmail.com>
> +  - Vivien Didelot <vivien.didelot@gmail.com>
> +
> +description:
> +  Ethernet switch port Description
> +
> +$ref: ethernet-controller.yaml#
> +
> +properties:
> +  reg:
> +    description: Port number
> +
> +  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

I know this is just copied, but these have no effect on validation. I 
assume what they are meant to be is these are the subset of 
ethernet-controller.yaml which are allowed, but that would only work 
with 'additionalProperties: false'. That wouldn't work because we also 
want to users to extend this with custom properties. What's needed here 
is a list of properties not allowed:

disallowed-prop: false

Or we can just allow anything from ethernet-controller.yaml and drop 
this list.

> +
> +required:
> +  - reg
> +
> +additionalProperties: true
> +
> +...
  
Vladimir Oltean Nov. 9, 2022, 11:43 p.m. UTC | #2
On Fri, Nov 04, 2022 at 01:50:28PM -0500, Rob Herring wrote:
> Or we can just allow anything from ethernet-controller.yaml and drop 
> this list.

Sounds fine to me. Makes ethernet-switch-port just an ethernet-controller
where "reg" has a particular meaning (port number). Which is basically true.
  

Patch

diff --git a/Documentation/devicetree/bindings/net/dsa/dsa-port.yaml b/Documentation/devicetree/bindings/net/dsa/dsa-port.yaml
index 10ad7e71097b..d97fb87cccb0 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 Device Tree Bindings
+title: DSA Switch port Device Tree Bindings
 
 maintainers:
   - Andrew Lunn <andrew@lunn.ch>
@@ -14,13 +14,7 @@  maintainers:
 description:
   Ethernet switch port Description
 
-allOf:
-  - $ref: /schemas/net/ethernet-controller.yaml#
-
 properties:
-  reg:
-    description: Port number
-
   label:
     description:
       Describes the label associated with this port, which will become
@@ -57,25 +51,6 @@  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..cb1e5e12bf0a
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/ethernet-switch-port.yaml
@@ -0,0 +1,44 @@ 
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/ethernet-switch-port.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Ethernet Switch port Device Tree Bindings
+
+maintainers:
+  - Andrew Lunn <andrew@lunn.ch>
+  - Florian Fainelli <f.fainelli@gmail.com>
+  - Vivien Didelot <vivien.didelot@gmail.com>
+
+description:
+  Ethernet switch port Description
+
+$ref: ethernet-controller.yaml#
+
+properties:
+  reg:
+    description: Port number
+
+  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
+
+additionalProperties: true
+
+...
diff --git a/Documentation/devicetree/bindings/net/ethernet-switch.yaml b/Documentation/devicetree/bindings/net/ethernet-switch.yaml
index fbaac536673d..f698857619da 100644
--- a/Documentation/devicetree/bindings/net/ethernet-switch.yaml
+++ b/Documentation/devicetree/bindings/net/ethernet-switch.yaml
@@ -36,7 +36,9 @@  patternProperties:
         type: object
         description: Ethernet switch ports
 
-        $ref: /schemas/net/dsa/dsa-port.yaml#
+        allOf:
+          - $ref: /schemas/net/dsa/dsa-port.yaml#
+          - $ref: ethernet-switch-port.yaml#
 
 oneOf:
   - required:
diff --git a/MAINTAINERS b/MAINTAINERS
index 3b6c3989c419..d98fc1962874 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -14326,6 +14326,7 @@  M:	Florian Fainelli <f.fainelli@gmail.com>
 M:	Vladimir Oltean <olteanv@gmail.com>
 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/