diff mbox series

[net-next,v5,11/17] dt-bindings: net: pse-pd: Add another way of describing several PSE PIs

Message ID 20240227-feature_poe-v5-11-28f0aa48246d@bootlin.com
State New
Headers
Series net: Add support for Power over Ethernet (PoE) |

Commit Message

Köry Maincent Feb. 27, 2024, 2:42 p.m. UTC 
  PSE PI setup may encompass multiple PSE controllers or auxiliary circuits
that collectively manage power delivery to one Ethernet port.
Such configurations might support a range of PoE standards and require
the capability to dynamically configure power delivery based on the
operational mode (e.g., PoE2 versus PoE4) or specific requirements of
connected devices. In these instances, a dedicated PSE PI node becomes
essential for accurately documenting the system architecture. This node
would serve to detail the interactions between different PSE controllers,
the support for various PoE modes, and any additional logic required to
coordinate power delivery across the network infrastructure.

The old usage of "#pse-cells" is unsuficient as it carries only the PSE PI
index information.

This patch is sponsored by Dent Project <dentproject@linuxfoundation.org>.

Signed-off-by: Kory Maincent <kory.maincent@bootlin.com>
---

Changes in v3:
- New patch

Changes in v4:
- Remove $def
- Fix pairset-names item list
- Upgrade few properties description
- Update the commit message

Changes in v5:
- Fix yamllint error.
- Replace underscore by dash in properties names.
- Add polarity-supported property.
---
 .../bindings/net/pse-pd/pse-controller.yaml        | 100 ++++++++++++++++++++-
 1 file changed, 97 insertions(+), 3 deletions(-)

Comments

Rob Herring Feb. 28, 2024, 4:42 p.m. UTC | #1 
On Tue, 27 Feb 2024 15:42:53 +0100, Kory Maincent wrote:
> PSE PI setup may encompass multiple PSE controllers or auxiliary circuits
> that collectively manage power delivery to one Ethernet port.
> Such configurations might support a range of PoE standards and require
> the capability to dynamically configure power delivery based on the
> operational mode (e.g., PoE2 versus PoE4) or specific requirements of
> connected devices. In these instances, a dedicated PSE PI node becomes
> essential for accurately documenting the system architecture. This node
> would serve to detail the interactions between different PSE controllers,
> the support for various PoE modes, and any additional logic required to
> coordinate power delivery across the network infrastructure.
> 
> The old usage of "#pse-cells" is unsuficient as it carries only the PSE PI
> index information.
> 
> This patch is sponsored by Dent Project <dentproject@linuxfoundation.org>.
> 
> Signed-off-by: Kory Maincent <kory.maincent@bootlin.com>
> ---
> 
> Changes in v3:
> - New patch
> 
> Changes in v4:
> - Remove $def
> - Fix pairset-names item list
> - Upgrade few properties description
> - Update the commit message
> 
> Changes in v5:
> - Fix yamllint error.
> - Replace underscore by dash in properties names.
> - Add polarity-supported property.
> ---
>  .../bindings/net/pse-pd/pse-controller.yaml        | 100 ++++++++++++++++++++-
>  1 file changed, 97 insertions(+), 3 deletions(-)
> 

My bot found errors running 'make DT_CHECKER_FLAGS=-m dt_binding_check'
on your patch (DT_CHECKER_FLAGS is new in v5.13):

yamllint warnings/errors:
/Documentation/devicetree/bindings/net/pse-pd/pse-controller.yaml:86:111: [warning] line too long (111 > 110 characters) (line-length)
/Documentation/devicetree/bindings/net/pse-pd/pse-controller.yaml:88:111: [warning] line too long (111 > 110 characters) (line-length)
/Documentation/devicetree/bindings/net/pse-pd/pse-controller.yaml:89:111: [warning] line too long (111 > 110 characters) (line-length)
/Documentation/devicetree/bindings/net/pse-pd/pse-controller.yaml:90:111: [warning] line too long (111 > 110 characters) (line-length)
/Documentation/devicetree/bindings/net/pse-pd/pse-controller.yaml:91:111: [warning] line too long (111 > 110 characters) (line-length)
/Documentation/devicetree/bindings/net/pse-pd/pse-controller.yaml:92:111: [warning] line too long (111 > 110 characters) (line-length)
/Documentation/devicetree/bindings/net/pse-pd/pse-controller.yaml:93:111: [warning] line too long (111 > 110 characters) (line-length)
/Documentation/devicetree/bindings/net/pse-pd/pse-controller.yaml:94:111: [warning] line too long (111 > 110 characters) (line-length)
/Documentation/devicetree/bindings/net/pse-pd/pse-controller.yaml:95:111: [warning] line too long (111 > 110 characters) (line-length)

dtschema/dtc warnings/errors:

doc reference errors (make refcheckdocs):
Warning: Documentation/devicetree/bindings/net/pse-pd/pse-controller.yaml references a file that doesn't exist: Documentation/networking/pse-pd/pse-pi.rst
Documentation/devicetree/bindings/net/pse-pd/pse-controller.yaml: Documentation/networking/pse-pd/pse-pi.rst

See https://patchwork.ozlabs.org/project/devicetree-bindings/patch/20240227-feature_poe-v5-11-28f0aa48246d@bootlin.com

The base for the series is generally the latest rc1. A different dependency
should be noted in *this* patch.

If you already ran 'make dt_binding_check' and didn't see the above
error(s), then make sure 'yamllint' is installed and dt-schema is up to
date:

pip3 install dtschema --upgrade

Please check and re-submit after running the above command yourself. Note
that DT_SCHEMA_FILES can be set to your schema file to speed up checking
your schema. However, it must be unset to test all examples with your schema.
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/net/pse-pd/pse-controller.yaml b/Documentation/devicetree/bindings/net/pse-pd/pse-controller.yaml
index 2d382faca0e6..76a301463b48 100644
--- a/Documentation/devicetree/bindings/net/pse-pd/pse-controller.yaml
+++ b/Documentation/devicetree/bindings/net/pse-pd/pse-controller.yaml
@@ -13,6 +13,7 @@  description: Binding for the Power Sourcing Equipment (PSE) as defined in the
 
 maintainers:
   - Oleksij Rempel <o.rempel@pengutronix.de>
+  - Kory Maincent <kory.maincent@bootlin.com>
 
 properties:
   $nodename:
@@ -22,11 +23,104 @@  properties:
     description:
       Used to uniquely identify a PSE instance within an IC. Will be
       0 on PSE nodes with only a single output and at least 1 on nodes
-      controlling several outputs.
+      controlling several outputs which are not described in the pse-pis
+      subnode. This property is deprecated, please use pse-pis instead.
     enum: [0, 1]
 
-required:
-  - "#pse-cells"
+  pse-pis:
+    type: object
+    description:
+      Overview of the PSE PIs provided by the controller.
+
+    properties:
+      "#address-cells":
+        const: 1
+
+      "#size-cells":
+        const: 0
+
+    required:
+      - "#address-cells"
+      - "#size-cells"
+
+    patternProperties:
+      "^pse-pi@[0-9a-f]+$":
+        type: object
+        description:
+          PSE PI for power delivery via pairsets, compliant with IEEE
+          802.3-2022, Section 145.2.4. Each pairset comprises a positive and
+          a negative VPSE pair, adhering to the pinout configurations
+          detailed in the standard.
+          See Documentation/networking/pse-pd/pse-pi.rst for details.
+
+        properties:
+          reg:
+            description:
+              Address describing the PSE PI index.
+            maxItems: 1
+
+          "#pse-cells":
+            const: 0
+
+          pairset-names:
+            $ref: /schemas/types.yaml#/definitions/string-array
+            description:
+              Names of the pairsets as per IEEE 802.3-2022, Section 145.2.4.
+              Valid values are "alternative-a" and "alternative-b". Each name
+              should correspond to a phandle in the 'pairset' property
+              pointing to the power supply for that pairset.
+            minItems: 1
+            maxItems: 2
+            items:
+              enum:
+                - alternative-a
+                - alternative-b
+
+          pairsets:
+            $ref: /schemas/types.yaml#/definitions/phandle-array
+            description:
+              List of phandles, each pointing to the power supply for the
+              corresponding pairset named in 'pairset-names'. This property
+              aligns with IEEE 802.3-2022, Section 33.2.3 and 145.2.4.
+              PSE Pinout Alternatives (as per IEEE 802.3-2022 Table 145–3)
+              | Conductor | Alternative A (MDI-X) | Alternative A (MDI) | Alternative B(X) | Alternative B(S) |
+              |-----------|-----------------------|---------------------|------------------|------------------|
+              | 1         | Negative VPSE         | Positive VPSE       | —                | —                |
+              | 2         | Negative VPSE         | Positive VPSE       | —                | —                |
+              | 3         | Positive VPSE         | Negative VPSE       | —                | —                |
+              | 4         | —                     | —                   | Negative VPSE    | Positive VPSE    |
+              | 5         | —                     | —                   | Negative VPSE    | Positive VPSE    |
+              | 6         | Positive VPSE         | Negative VPSE       | —                | —                |
+              | 7         | —                     | —                   | Positive VPSE    | Negative VPSE    |
+              | 8         | —                     | —                   | Positive VPSE    | Negative VPSE    |
+            minItems: 1
+            maxItems: 2
+
+          polarity-supported:
+            $ref: /schemas/types.yaml#/definitions/string-array
+            description:
+              Polarity configuration supported by the PSE PI pairsets.
+            minItems: 1
+            maxItems: 4
+            items:
+              enum:
+                - MDI-X
+                - MDI
+                - X
+                - S
+
+        required:
+          - reg
+          - "#pse-cells"
+          - pairset-names
+          - pairsets
+          - polarity-supported
+
+oneOf:
+  - required:
+      - "#pse-cells"
+  - required:
+      - pse-pis
 
 additionalProperties: true