Thread (10 messages) 10 messages, 3 authors, 2022-10-11

Re: [PATCH v2] dt-bindings: net: marvell,pp2: convert to json-schema

From: Krzysztof Kozlowski <hidden>
Date: 2022-09-28 07:50:30
Also in: lkml, netdev

On 27/09/2022 01:21, Michał Grzelak wrote:
This converts the marvell,pp2 bindings from text to proper schema.

Move 'marvell,system-controller' and 'dma-coherent' properties from
port up to the controller node, to match what is actually done in DT.

Signed-off-by: Michał Grzelak <redacted>
---
 .../devicetree/bindings/net/marvell,pp2.yaml  | 241 ++++++++++++++++++
 .../devicetree/bindings/net/marvell-pp2.txt   | 141 ----------
Thank you for your patch. There is something to discuss/improve.

+properties:
+  compatible:
+    enum:
+      - marvell,armada-375-pp2
+      - marvell,armada-7k-pp22
+
+  reg:
+    minItems: 3
+    maxItems: 4
+    description: |
+      For "marvell,armada-375-pp2", must contain the following register sets:
+        - common controller registers
+        - LMS registers
+        - one register area per Ethernet port
+      For "marvell,armada-7k-pp22" used by 7K/8K and CN913X, must contain the following register sets:
+        - packet processor registers
+        - networking interfaces registers
+        - CM3 address space used for TX Flow Control
Instead of this description, in define them for each variant in
allOf:if:then (just like for clocks below)
+
+  clocks:
+    minItems: 2
+    items:
+      - description: main controller clock
+      - description: GOP clock
+      - description: MG clock
+      - description: MG Core clock
+      - description: AXI clock
This needs to be restricted per variant - minItems and maxItems in
allOf:if:then.
+
+  clock-names:
+    minItems: 2
+    items:
+      - const: pp_clk
+      - const: gop_clk
+      - const: mg_clk
+      - const: mg_core_clk
+      - const: axi_clk
The same.
+
+  dma-coherent: true
+  '#size-cells': true
+  '#address-cells': true
You need const:X for both cells (unless they come from some other schema
but then you would not need to list them here).
+
+  marvell,system-controller:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    description: a phandle to the system controller.
+
+patternProperties:
+  '^eth[0-9a-f]*(@.*)?$':
The name should be "(ethernet-)?port", unless anything depends on
particular naming?
+    type: object
You need description here.
+    properties:
+      interrupts:
+        minItems: 1
+        maxItems: 10
+        description: interrupt(s) for the port
+
+      interrupt-names:
+        items:
minItems: 1
+          - const: hif0
+          - const: hif1
+          - const: hif2
+          - const: hif3
+          - const: hif4
+          - const: hif5
+          - const: hif6
+          - const: hif7
+          - const: hif8
+          - const: link
+
+        description: >
+          if more than a single interrupt for is given, must be the
+          name associated to the interrupts listed. Valid names are:
+          "hifX", with X in [0..8], and "link". The names "tx-cpu0",
+          "tx-cpu1", "tx-cpu2", "tx-cpu3" and "rx-shared" are supported
+          for backward compatibility but shouldn't be used for new
+          additions.
+
+      port-id:
+        $ref: /schemas/types.yaml#/definitions/uint32
+        description: ID of the port from the MAC point of view.
+
+      phy:
+        $ref: /schemas/types.yaml#/definitions/phandle
+        description: >
+          a phandle to a phy node defining the PHY address
+          (as the reg property, a single integer).
+
+      phy-mode:
+        $ref: "ethernet-controller.yaml#/properties/phy-mode"
You can skip quotes.
+
+      marvell,loopback:
+        $ref: /schemas/types.yaml#/definitions/flag
+        description: port is loopback mode.
+
+      gop-port-id:
+        $ref: /schemas/types.yaml#/definitions/uint32
+        description: >
+          only for marvell,armada-7k-pp22, ID of the port from the
+          GOP (Group Of Ports) point of view. This ID is used to index the
+          per-port registers in the second register area.
+
+    required:
+      - interrupts
+      - port-id
+      - phy-mode
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+
+allOf:
+  - $ref: ethernet-controller.yaml#
+  - if:
+      properties:
+        compatible:
+          const: marvell,armada-7k-pp22
+    then:
+      patternProperties:
+        '^eth[0-9a-f]*(@.*)?$':
+          required:
+            - gop-port-id
else:
  patternProperties:
     ....
       gop-port-id: false
+
+unevaluatedProperties: false
+
+examples:
+  - |
Best regards,
Krzysztof
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